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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (119 commits)
  [SCSI] scsi_dh_rdac: Retry for NOT_READY check condition
  [SCSI] mpt2sas: make global symbols unique
  [SCSI] sd: Make revalidate less chatty
  [SCSI] sd: Try READ CAPACITY 16 first for SBC-2 devices
  [SCSI] sd: Refactor sd_read_capacity()
  [SCSI] mpt2sas v00.100.11.15
  [SCSI] mpt2sas: add MPT2SAS_MINOR(221) to miscdevice.h
  [SCSI] ch: Add scsi type modalias
  [SCSI] 3w-9xxx: add power management support
  [SCSI] bsg: add linux/types.h include to bsg.h
  [SCSI] cxgb3i: fix function descriptions
  [SCSI] libiscsi: fix possbile null ptr session command cleanup
  [SCSI] iscsi class: remove host no argument from session creation callout
  [SCSI] libiscsi: pass session failure a session struct
  [SCSI] iscsi lib: remove qdepth param from iscsi host allocation
  [SCSI] iscsi lib: have lib create work queue for transmitting IO
  [SCSI] iscsi class: fix lock dep warning on logout
  [SCSI] libiscsi: don't cap queue depth in iscsi modules
  [SCSI] iscsi_tcp: replace scsi_debug/tcp_debug logging with iscsi conn logging
  [SCSI] libiscsi_tcp: replace tcp_debug/scsi_debug logging with session/conn logging
  ...
This commit is contained in:
Linus Torvalds 2009-03-28 13:30:43 -07:00
commit d54b3538b0
118 changed files with 28866 additions and 1889 deletions
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6
Documentation/devices.txt
View File

@ -3145,6 +3145,12 @@ Your cooperation is appreciated.
1 = /dev/blockrom1 Second ROM card's translation layer interface
...
260 char OSD (Object-based-device) SCSI Device
0 = /dev/osd0 First OSD Device
1 = /dev/osd1 Second OSD Device
...
255 = /dev/osd255 256th OSD Device
**** ADDITIONAL /dev DIRECTORY ENTRIES
This section details additional entries that should or may exist in

198
Documentation/scsi/osd.txt Normal file
View File

@ -0,0 +1,198 @@
The OSD Standard
================
OSD (Object-Based Storage Device) is a T10 SCSI command set that is designed
to provide efficient operation of input/output logical units that manage the
allocation, placement, and accessing of variable-size data-storage containers,
called objects. Objects are intended to contain operating system and application
constructs. Each object has associated attributes attached to it, which are
integral part of the object and provide metadata about the object. The standard
defines some common obligatory attributes, but user attributes can be added as
needed.
See: http://www.t10.org/ftp/t10/drafts/osd2/ for the latest draft for OSD 2
or search the web for "OSD SCSI"
OSD in the Linux Kernel
=======================
osd-initiator:
The main component of OSD in Kernel is the osd-initiator library. Its main
user is intended to be the pNFS-over-objects layout driver, which uses objects
as its back-end data storage. Other clients are the other osd parts listed below.
osd-uld:
This is a SCSI ULD that registers for OSD type devices and provides a testing
platform, both for the in-kernel initiator as well as connected targets. It
currently has no useful user-mode API, though it could have if need be.
exofs:
Is an OSD based Linux file system. It uses the osd-initiator and osd-uld,
to export a usable file system for users.
See Documentation/filesystems/exofs.txt for more details
osd target:
There are no current plans for an OSD target implementation in kernel. For all
needs, a user-mode target that is based on the scsi tgt target framework is
available from Ohio Supercomputer Center (OSC) at:
http://www.open-osd.org/bin/view/Main/OscOsdProject
There are several other target implementations. See http://open-osd.org for more
links.
Files and Folders
=================
This is the complete list of files included in this work:
include/scsi/
osd_initiator.h Main API for the initiator library
osd_types.h Common OSD types
osd_sec.h Security Manager API
osd_protocol.h Wire definitions of the OSD standard protocol
osd_attributes.h Wire definitions of OSD attributes
drivers/scsi/osd/
osd_initiator.c OSD-Initiator library implementation
osd_uld.c The OSD scsi ULD
osd_ktest.{h,c} In-kernel test suite (called by osd_uld)
osd_debug.h Some printk macros
Makefile For both in-tree and out-of-tree compilation
Kconfig Enables inclusion of the different pieces
osd_test.c User-mode application to call the kernel tests
The OSD-Initiator Library
=========================
osd_initiator is a low level implementation of an osd initiator encoder.
But even though, it should be intuitive and easy to use. Perhaps over time an
higher lever will form that automates some of the more common recipes.
init/fini:
- osd_dev_init() associates a scsi_device with an osd_dev structure
and initializes some global pools. This should be done once per scsi_device
(OSD LUN). The osd_dev structure is needed for calling osd_start_request().
- osd_dev_fini() cleans up before a osd_dev/scsi_device destruction.
OSD commands encoding, execution, and decoding of results:
struct osd_request's is used to iteratively encode an OSD command and carry
its state throughout execution. Each request goes through these stages:
a. osd_start_request() allocates the request.
b. Any of the osd_req_* methods is used to encode a request of the specified
type.
c. osd_req_add_{get,set}_attr_* may be called to add get/set attributes to the
CDB. "List" or "Page" mode can be used exclusively. The attribute-list API
can be called multiple times on the same request. However, only one
attribute-page can be read, as mandated by the OSD standard.
d. osd_finalize_request() computes offsets into the data-in and data-out buffers
and signs the request using the provided capability key and integrity-
check parameters.
e. osd_execute_request() may be called to execute the request via the block
layer and wait for its completion. The request can be executed
asynchronously by calling the block layer API directly.
f. After execution, osd_req_decode_sense() can be called to decode the request's
sense information.
g. osd_req_decode_get_attr() may be called to retrieve osd_add_get_attr_list()
values.
h. osd_end_request() must be called to deallocate the request and any resource
associated with it. Note that osd_end_request cleans up the request at any
stage and it must always be called after a successful osd_start_request().
osd_request's structure:
The OSD standard defines a complex structure of IO segments pointed to by
members in the CDB. Up to 3 segments can be deployed in the IN-Buffer and up to
4 in the OUT-Buffer. The ASCII illustration below depicts a secure-read with
associated get+set of attributes-lists. Other combinations very on the same
basic theme. From no-segments-used up to all-segments-used.
|________OSD-CDB__________|
| |
|read_len (offset=0) -|---------\
| | |
|get_attrs_list_length | |
|get_attrs_list_offset -|----\ |
| | | |
|retrieved_attrs_alloc_len| | |
|retrieved_attrs_offset -|----|----|-\
| | | | |
|set_attrs_list_length | | | |
|set_attrs_list_offset -|-\ | | |
| | | | | |
|in_data_integ_offset -|-|--|----|-|-\
|out_data_integ_offset -|-|--|--\ | | |
\_________________________/ | | | | | |
| | | | | |
|_______OUT-BUFFER________| | | | | | |
| Set attr list |</ | | | | |
| | | | | | |
|-------------------------| | | | | |
| Get attr descriptors |<---/ | | | |
| | | | | |
|-------------------------| | | | |
| Out-data integrity |<------/ | | |
| | | | |
\_________________________/ | | |
| | |
|________IN-BUFFER________| | | |
| In-Data read |<--------/ | |
| | | |
|-------------------------| | |
| Get attr list |<----------/ |
| | |
|-------------------------| |
| In-data integrity |<------------/
| |
\_________________________/
A block device request can carry bidirectional payload by means of associating
a bidi_read request with a main write-request. Each in/out request is described
by a chain of BIOs associated with each request.
The CDB is of a SCSI VARLEN CDB format, as described by OSD standard.
The OSD standard also mandates alignment restrictions at start of each segment.
In the code, in struct osd_request, there are two _osd_io_info structures to
describe the IN/OUT buffers above, two BIOs for the data payload and up to five
_osd_req_data_segment structures to hold the different segments allocation and
information.
Important: We have chosen to disregard the assumption that a BIO-chain (and
the resulting sg-list) describes a linear memory buffer. Meaning only first and
last scatter chain can be incomplete and all the middle chains are of PAGE_SIZE.
For us, a scatter-gather-list, as its name implies and as used by the Networking
layer, is to describe a vector of buffers that will be transferred to/from the
wire. It works very well with current iSCSI transport. iSCSI is currently the
only deployed OSD transport. In the future we anticipate SAS and FC attached OSD
devices as well.
The OSD Testing ULD
===================
TODO: More user-mode control on tests.
Authors, Mailing list
=====================
Please communicate with us on any deployment of osd, whether using this code
or not.
Any problems, questions, bug reports, lonely OSD nights, please email:
OSD Dev List <osd-dev@open-osd.org>
More up-to-date information can be found on:
http://open-osd.org
Boaz Harrosh <bharrosh@panasas.com>
Benny Halevy <bhalevy@panasas.com>
References
==========
Weber, R., "SCSI Object-Based Storage Device Commands",
T10/1355-D ANSI/INCITS 400-2004,
http://www.t10.org/ftp/t10/drafts/osd/osd-r10.pdf
Weber, R., "SCSI Object-Based Storage Device Commands -2 (OSD-2)"
T10/1729-D, Working Draft, rev. 3
http://www.t10.org/ftp/t10/drafts/osd2/osd2r03.pdf

10
MAINTAINERS
View File

@ -3310,6 +3310,16 @@ L: orinoco-devel@lists.sourceforge.net
W: http://www.nongnu.org/orinoco/
S: Maintained
OSD LIBRARY
P: Boaz Harrosh
M: bharrosh@panasas.com
P: Benny Halevy
M: bhalevy@panasas.com
L: osd-dev@open-osd.org
W: http://open-osd.org
T: git://git.open-osd.org/open-osd.git
S: Maintained
P54 WIRELESS DRIVER
P: Michael Wu
M: flamingice@sourmilk.net

1
block/cmd-filter.c
View File

@ -22,6 +22,7 @@
#include <linux/spinlock.h>
#include <linux/capability.h>
#include <linux/bitops.h>
#include <linux/blkdev.h>
#include <scsi/scsi.h>
#include <linux/cdrom.h>

17
drivers/infiniband/ulp/iser/iscsi_iser.c
View File

@ -168,7 +168,7 @@ iscsi_iser_mtask_xmit(struct iscsi_conn *conn, struct iscsi_task *task)
{
int error = 0;
debug_scsi("task deq [cid %d itt 0x%x]\n", conn->id, task->itt);
iser_dbg("task deq [cid %d itt 0x%x]\n", conn->id, task->itt);
error = iser_send_control(conn, task);
@ -195,7 +195,7 @@ iscsi_iser_task_xmit_unsol_data(struct iscsi_conn *conn,
/* Send data-out PDUs while there's still unsolicited data to send */
while (iscsi_task_has_unsol_data(task)) {
iscsi_prep_data_out_pdu(task, r2t, &hdr);
debug_scsi("Sending data-out: itt 0x%x, data count %d\n",
iser_dbg("Sending data-out: itt 0x%x, data count %d\n",
hdr.itt, r2t->data_count);
/* the buffer description has been passed with the command */
@ -206,7 +206,7 @@ iscsi_iser_task_xmit_unsol_data(struct iscsi_conn *conn,
goto iscsi_iser_task_xmit_unsol_data_exit;
}
r2t->sent += r2t->data_count;
debug_scsi("Need to send %d more as data-out PDUs\n",
iser_dbg("Need to send %d more as data-out PDUs\n",
r2t->data_length - r2t->sent);
}
@ -227,12 +227,12 @@ iscsi_iser_task_xmit(struct iscsi_task *task)
if (task->sc->sc_data_direction == DMA_TO_DEVICE) {
BUG_ON(scsi_bufflen(task->sc) == 0);
debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n",
iser_dbg("cmd [itt %x total %d imm %d unsol_data %d\n",
task->itt, scsi_bufflen(task->sc),
task->imm_count, task->unsol_r2t.data_length);
}
debug_scsi("task deq [cid %d itt 0x%x]\n",
iser_dbg("task deq [cid %d itt 0x%x]\n",
conn->id, task->itt);
/* Send the cmd PDU */
@ -397,14 +397,14 @@ static void iscsi_iser_session_destroy(struct iscsi_cls_session *cls_session)
static struct iscsi_cls_session *
iscsi_iser_session_create(struct iscsi_endpoint *ep,
uint16_t cmds_max, uint16_t qdepth,
uint32_t initial_cmdsn, uint32_t *hostno)
uint32_t initial_cmdsn)
{
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
struct Scsi_Host *shost;
struct iser_conn *ib_conn;
shost = iscsi_host_alloc(&iscsi_iser_sht, 0, ISCSI_MAX_CMD_PER_LUN);
shost = iscsi_host_alloc(&iscsi_iser_sht, 0, 1);
if (!shost)
return NULL;
shost->transportt = iscsi_iser_scsi_transport;
@ -423,7 +423,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
if (iscsi_host_add(shost,
ep ? ib_conn->device->ib_device->dma_device : NULL))
goto free_host;
*hostno = shost->host_no;
/*
* we do not support setting can_queue cmd_per_lun from userspace yet
@ -596,7 +595,7 @@ static struct scsi_host_template iscsi_iser_sht = {
.change_queue_depth = iscsi_change_queue_depth,
.sg_tablesize = ISCSI_ISER_SG_TABLESIZE,
.max_sectors = 1024,
.cmd_per_lun = ISCSI_MAX_CMD_PER_LUN,
.cmd_per_lun = ISER_DEF_CMD_PER_LUN,
.eh_abort_handler = iscsi_eh_abort,
.eh_device_reset_handler= iscsi_eh_device_reset,
.eh_target_reset_handler= iscsi_eh_target_reset,

2
drivers/infiniband/ulp/iser/iscsi_iser.h
View File

@ -93,7 +93,7 @@
/* support upto 512KB in one RDMA */
#define ISCSI_ISER_SG_TABLESIZE (0x80000 >> SHIFT_4K)
#define ISCSI_ISER_MAX_LUN 256
#define ISER_DEF_CMD_PER_LUN 128
/* QP settings */
/* Maximal bounds on received asynchronous PDUs */

2
drivers/infiniband/ulp/iser/iser_initiator.c
View File

@ -661,7 +661,7 @@ void iser_snd_completion(struct iser_desc *tx_desc)
if (resume_tx) {
iser_dbg("%ld resuming tx\n",jiffies);
scsi_queue_work(conn->session->host, &conn->xmitwork);
iscsi_conn_queue_work(conn);
}
if (tx_desc->type == ISCSI_TX_CONTROL) {

2
drivers/net/xen-netfront.c
View File

@ -1511,7 +1511,7 @@ static int xennet_set_tso(struct net_device *dev, u32 data)
static void xennet_set_features(struct net_device *dev)
{
/* Turn off all GSO bits except ROBUST. */
dev->features &= (1 << NETIF_F_GSO_SHIFT) - 1;
dev->features &= ~NETIF_F_GSO_MASK;
dev->features |= NETIF_F_GSO_ROBUST;
xennet_set_sg(dev, 0);

16
drivers/s390/scsi/zfcp_aux.c
View File

@ -3,7 +3,7 @@
*
* Module interface and handling of zfcp data structures.
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
/*
@ -249,8 +249,8 @@ struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter,
struct zfcp_port *port;
list_for_each_entry(port, &adapter->port_list_head, list)
if ((port->wwpn == wwpn) && !(atomic_read(&port->status) &
(ZFCP_STATUS_PORT_NO_WWPN | ZFCP_STATUS_COMMON_REMOVE)))
if ((port->wwpn == wwpn) &&
!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_REMOVE))
return port;
return NULL;
}
@ -421,7 +421,8 @@ int zfcp_status_read_refill(struct zfcp_adapter *adapter)
while (atomic_read(&adapter->stat_miss) > 0)
if (zfcp_fsf_status_read(adapter)) {
if (atomic_read(&adapter->stat_miss) >= 16) {
zfcp_erp_adapter_reopen(adapter, 0, 103, NULL);
zfcp_erp_adapter_reopen(adapter, 0, "axsref1",
NULL);
return 1;
}
break;
@ -501,6 +502,7 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
spin_lock_init(&adapter->scsi_dbf_lock);
spin_lock_init(&adapter->rec_dbf_lock);
spin_lock_init(&adapter->req_q_lock);
spin_lock_init(&adapter->qdio_stat_lock);
rwlock_init(&adapter->erp_lock);
rwlock_init(&adapter->abort_lock);
@ -522,7 +524,6 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
goto sysfs_failed;
atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
zfcp_fc_nameserver_init(adapter);
if (!zfcp_adapter_scsi_register(adapter))
return 0;
@ -552,6 +553,7 @@ void zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
cancel_work_sync(&adapter->scan_work);
cancel_work_sync(&adapter->stat_work);
cancel_delayed_work_sync(&adapter->nsp.work);
zfcp_adapter_scsi_unregister(adapter);
sysfs_remove_group(&adapter->ccw_device->dev.kobj,
&zfcp_sysfs_adapter_attrs);
@ -603,10 +605,13 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
init_waitqueue_head(&port->remove_wq);
INIT_LIST_HEAD(&port->unit_list_head);
INIT_WORK(&port->gid_pn_work, zfcp_erp_port_strategy_open_lookup);
INIT_WORK(&port->test_link_work, zfcp_fc_link_test_work);
INIT_WORK(&port->rport_work, zfcp_scsi_rport_work);
port->adapter = adapter;
port->d_id = d_id;
port->wwpn = wwpn;
port->rport_task = RPORT_NONE;
/* mark port unusable as long as sysfs registration is not complete */
atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
@ -620,7 +625,6 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
dev_set_drvdata(&port->sysfs_device, port);
read_lock_irq(&zfcp_data.config_lock);
if (!(status & ZFCP_STATUS_PORT_NO_WWPN))
if (zfcp_get_port_by_wwpn(adapter, wwpn)) {
read_unlock_irq(&zfcp_data.config_lock);
goto err_out_free;

24
drivers/s390/scsi/zfcp_ccw.c
View File

@ -3,7 +3,7 @@
*
* Registration and callback for the s390 common I/O layer.
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
#define KMSG_COMPONENT "zfcp"
@ -72,8 +72,7 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device)
list_for_each_entry_safe(port, p, &port_remove_lh, list) {
list_for_each_entry_safe(unit, u, &unit_remove_lh, list) {
if (atomic_read(&unit->status) &
ZFCP_STATUS_UNIT_REGISTERED)
if (unit->device)
scsi_remove_device(unit->device);
zfcp_unit_dequeue(unit);
}
@ -109,11 +108,12 @@ static int zfcp_ccw_set_online(struct ccw_device *ccw_device)
/* initialize request counter */
BUG_ON(!zfcp_reqlist_isempty(adapter));
adapter->req_no = 0;
zfcp_fc_nameserver_init(adapter);
zfcp_erp_modify_adapter_status(adapter, 10, NULL,
zfcp_erp_modify_adapter_status(adapter, "ccsonl1", NULL,
ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 85,
NULL);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"ccsonl2", NULL);
zfcp_erp_wait(adapter);
up(&zfcp_data.config_sema);
flush_work(&adapter->scan_work);
@ -137,7 +137,7 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device)
down(&zfcp_data.config_sema);
adapter = dev_get_drvdata(&ccw_device->dev);
zfcp_erp_adapter_shutdown(adapter, 0, 86, NULL);
zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL);
zfcp_erp_wait(adapter);
zfcp_erp_thread_kill(adapter);
up(&zfcp_data.config_sema);
@ -160,21 +160,21 @@ static int zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
case CIO_GONE:
dev_warn(&adapter->ccw_device->dev,
"The FCP device has been detached\n");
zfcp_erp_adapter_shutdown(adapter, 0, 87, NULL);
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti1", NULL);
break;
case CIO_NO_PATH:
dev_warn(&adapter->ccw_device->dev,
"The CHPID for the FCP device is offline\n");
zfcp_erp_adapter_shutdown(adapter, 0, 88, NULL);
zfcp_erp_adapter_shutdown(adapter, 0, "ccnoti2", NULL);
break;
case CIO_OPER:
dev_info(&adapter->ccw_device->dev,
"The FCP device is operational again\n");
zfcp_erp_modify_adapter_status(adapter, 11, NULL,
zfcp_erp_modify_adapter_status(adapter, "ccnoti3", NULL,
ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
89, NULL);
"ccnoti4", NULL);
break;
}
return 1;
@ -190,7 +190,7 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
down(&zfcp_data.config_sema);
adapter = dev_get_drvdata(&cdev->dev);
zfcp_erp_adapter_shutdown(adapter, 0, 90, NULL);
zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL);
zfcp_erp_wait(adapter);
up(&zfcp_data.config_sema);
}

188
drivers/s390/scsi/zfcp_dbf.c
View File

@ -490,172 +490,17 @@ static const char *zfcp_rec_dbf_tags[] = {
[ZFCP_REC_DBF_ID_ACTION] = "action",
};
static const char *zfcp_rec_dbf_ids[] = {
[1] = "new",
[2] = "ready",
[3] = "kill",
[4] = "down sleep",
[5] = "down wakeup",
[6] = "down sleep ecd",
[7] = "down wakeup ecd",
[8] = "down sleep epd",
[9] = "down wakeup epd",
[10] = "online",
[11] = "operational",
[12] = "scsi slave destroy",
[13] = "propagate failed adapter",
[14] = "propagate failed port",
[15] = "block adapter",
[16] = "unblock adapter",
[17] = "block port",
[18] = "unblock port",
[19] = "block unit",
[20] = "unblock unit",
[21] = "unit recovery failed",
[22] = "port recovery failed",
[23] = "adapter recovery failed",
[24] = "qdio queues down",
[25] = "p2p failed",
[26] = "nameserver lookup failed",
[27] = "nameserver port failed",
[28] = "link up",
[29] = "link down",
[30] = "link up status read",
[31] = "open port failed",
[32] = "",
[33] = "close port",
[34] = "open unit failed",
[35] = "exclusive open unit failed",
[36] = "shared open unit failed",
[37] = "link down",
[38] = "link down status read no link",
[39] = "link down status read fdisc login",
[40] = "link down status read firmware update",
[41] = "link down status read unknown reason",
[42] = "link down ecd incomplete",
[43] = "link down epd incomplete",
[44] = "sysfs adapter recovery",
[45] = "sysfs port recovery",
[46] = "sysfs unit recovery",
[47] = "port boxed abort",
[48] = "unit boxed abort",
[49] = "port boxed ct",
[50] = "port boxed close physical",
[51] = "port boxed open unit",
[52] = "port boxed close unit",
[53] = "port boxed fcp",
[54] = "unit boxed fcp",
[55] = "port access denied",
[56] = "",
[57] = "",
[58] = "",
[59] = "unit access denied",
[60] = "shared unit access denied open unit",
[61] = "",
[62] = "request timeout",
[63] = "adisc link test reject or timeout",
[64] = "adisc link test d_id changed",
[65] = "adisc link test failed",
[66] = "recovery out of memory",
[67] = "adapter recovery repeated after state change",
[68] = "port recovery repeated after state change",
[69] = "unit recovery repeated after state change",
[70] = "port recovery follow-up after successful adapter recovery",
[71] = "adapter recovery escalation after failed adapter recovery",
[72] = "port recovery follow-up after successful physical port "
"recovery",
[73] = "adapter recovery escalation after failed physical port "
"recovery",
[74] = "unit recovery follow-up after successful port recovery",
[75] = "physical port recovery escalation after failed port "
"recovery",
[76] = "port recovery escalation after failed unit recovery",
[77] = "",
[78] = "duplicate request id",
[79] = "link down",
[80] = "exclusive read-only unit access unsupported",
[81] = "shared read-write unit access unsupported",
[82] = "incoming rscn",
[83] = "incoming wwpn",
[84] = "wka port handle not valid close port",
[85] = "online",
[86] = "offline",
[87] = "ccw device gone",
[88] = "ccw device no path",
[89] = "ccw device operational",
[90] = "ccw device shutdown",
[91] = "sysfs port addition",
[92] = "sysfs port removal",
[93] = "sysfs adapter recovery",
[94] = "sysfs unit addition",
[95] = "sysfs unit removal",
[96] = "sysfs port recovery",
[97] = "sysfs unit recovery",
[98] = "sequence number mismatch",
[99] = "link up",
[100] = "error state",
[101] = "status read physical port closed",
[102] = "link up status read",
[103] = "too many failed status read buffers",
[104] = "port handle not valid abort",
[105] = "lun handle not valid abort",
[106] = "port handle not valid ct",
[107] = "port handle not valid close port",
[108] = "port handle not valid close physical port",
[109] = "port handle not valid open unit",
[110] = "port handle not valid close unit",
[111] = "lun handle not valid close unit",
[112] = "port handle not valid fcp",
[113] = "lun handle not valid fcp",
[114] = "handle mismatch fcp",
[115] = "lun not valid fcp",
[116] = "qdio send failed",
[117] = "version mismatch",
[118] = "incompatible qtcb type",
[119] = "unknown protocol status",
[120] = "unknown fsf command",
[121] = "no recommendation for status qualifier",
[122] = "status read physical port closed in error",
[123] = "fc service class not supported",
[124] = "",
[125] = "need newer zfcp",
[126] = "need newer microcode",
[127] = "arbitrated loop not supported",
[128] = "",
[129] = "qtcb size mismatch",
[130] = "unknown fsf status ecd",
[131] = "fcp request too big",
[132] = "",
[133] = "data direction not valid fcp",
[134] = "command length not valid fcp",
[135] = "status read act update",
[136] = "status read cfdc update",
[137] = "hbaapi port open",
[138] = "hbaapi unit open",
[139] = "hbaapi unit shutdown",
[140] = "qdio error outbound",
[141] = "scsi host reset",
[142] = "dismissing fsf request for recovery action",
[143] = "recovery action timed out",
[144] = "recovery action gone",
[145] = "recovery action being processed",
[146] = "recovery action ready for next step",
[147] = "qdio error inbound",
[148] = "nameserver needed for port scan",
[149] = "port scan",
[150] = "ptp attach",
[151] = "port validation failed",
};
static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view,
char *buf, const char *_rec)
{
struct zfcp_rec_dbf_record *r = (struct zfcp_rec_dbf_record *)_rec;
char *p = buf;
char hint[ZFCP_DBF_ID_SIZE + 1];
memcpy(hint, r->id2, ZFCP_DBF_ID_SIZE);
hint[ZFCP_DBF_ID_SIZE] = 0;
zfcp_dbf_outs(&p, "tag", zfcp_rec_dbf_tags[r->id]);
zfcp_dbf_outs(&p, "hint", zfcp_rec_dbf_ids[r->id2]);
zfcp_dbf_out(&p, "id", "%d", r->id2);
zfcp_dbf_outs(&p, "hint", hint);
switch (r->id) {
case ZFCP_REC_DBF_ID_THREAD:
zfcp_dbf_out(&p, "total", "%d", r->u.thread.total);
@ -707,7 +552,7 @@ static struct debug_view zfcp_rec_dbf_view = {
* @adapter: adapter
* This function assumes that the caller is holding erp_lock.
*/
void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter)
void zfcp_rec_dbf_event_thread(char *id2, struct zfcp_adapter *adapter)
{
struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
unsigned long flags = 0;
@ -723,7 +568,7 @@ void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter)
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_THREAD;
r->id2 = id2;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.thread.total = total;
r->u.thread.ready = ready;
r->u.thread.running = running;
@ -737,7 +582,7 @@ void zfcp_rec_dbf_event_thread(u8 id2, struct zfcp_adapter *adapter)
* @adapter: adapter
* This function assumes that the caller does not hold erp_lock.
*/
void zfcp_rec_dbf_event_thread_lock(u8 id2, struct zfcp_adapter *adapter)
void zfcp_rec_dbf_event_thread_lock(char *id2, struct zfcp_adapter *adapter)
{
unsigned long flags;
@ -746,7 +591,7 @@ void zfcp_rec_dbf_event_thread_lock(u8 id2, struct zfcp_adapter *adapter)
read_unlock_irqrestore(&adapter->erp_lock, flags);
}
static void zfcp_rec_dbf_event_target(u8 id2, void *ref,
static void zfcp_rec_dbf_event_target(char *id2, void *ref,
struct zfcp_adapter *adapter,
atomic_t *status, atomic_t *erp_count,
u64 wwpn, u32 d_id, u64 fcp_lun)
@ -757,7 +602,7 @@ static void zfcp_rec_dbf_event_target(u8 id2, void *ref,
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_TARGET;
r->id2 = id2;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.target.ref = (unsigned long)ref;
r->u.target.status = atomic_read(status);
r->u.target.wwpn = wwpn;
@ -774,7 +619,8 @@ static void zfcp_rec_dbf_event_target(u8 id2, void *ref,
* @ref: additional reference (e.g. request)
* @adapter: adapter
*/
void zfcp_rec_dbf_event_adapter(u8 id, void *ref, struct zfcp_adapter *adapter)
void zfcp_rec_dbf_event_adapter(char *id, void *ref,
struct zfcp_adapter *adapter)
{
zfcp_rec_dbf_event_target(id, ref, adapter, &adapter->status,
&adapter->erp_counter, 0, 0, 0);
@ -786,7 +632,7 @@ void zfcp_rec_dbf_event_adapter(u8 id, void *ref, struct zfcp_adapter *adapter)
* @ref: additional reference (e.g. request)
* @port: port
*/
void zfcp_rec_dbf_event_port(u8 id, void *ref, struct zfcp_port *port)
void zfcp_rec_dbf_event_port(char *id, void *ref, struct zfcp_port *port)
{
struct zfcp_adapter *adapter = port->adapter;
@ -801,7 +647,7 @@ void zfcp_rec_dbf_event_port(u8 id, void *ref, struct zfcp_port *port)
* @ref: additional reference (e.g. request)
* @unit: unit
*/
void zfcp_rec_dbf_event_unit(u8 id, void *ref, struct zfcp_unit *unit)
void zfcp_rec_dbf_event_unit(char *id, void *ref, struct zfcp_unit *unit)
{
struct zfcp_port *port = unit->port;
struct zfcp_adapter *adapter = port->adapter;
@ -822,7 +668,7 @@ void zfcp_rec_dbf_event_unit(u8 id, void *ref, struct zfcp_unit *unit)
* @port: port
* @unit: unit
*/
void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need,
void zfcp_rec_dbf_event_trigger(char *id2, void *ref, u8 want, u8 need,
void *action, struct zfcp_adapter *adapter,
struct zfcp_port *port, struct zfcp_unit *unit)
{
@ -832,7 +678,7 @@ void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need,
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_TRIGGER;
r->id2 = id2;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.trigger.ref = (unsigned long)ref;
r->u.trigger.want = want;
r->u.trigger.need = need;
@ -855,7 +701,7 @@ void zfcp_rec_dbf_event_trigger(u8 id2, void *ref, u8 want, u8 need,
* @id2: identifier
* @erp_action: error recovery action struct pointer
*/
void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action)
void zfcp_rec_dbf_event_action(char *id2, struct zfcp_erp_action *erp_action)
{
struct zfcp_adapter *adapter = erp_action->adapter;
struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
@ -864,7 +710,7 @@ void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action)
spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
memset(r, 0, sizeof(*r));
r->id = ZFCP_REC_DBF_ID_ACTION;
r->id2 = id2;
memcpy(r->id2, id2, ZFCP_DBF_ID_SIZE);
r->u.action.action = (unsigned long)erp_action;
r->u.action.status = erp_action->status;
r->u.action.step = erp_action->step;

3
drivers/s390/scsi/zfcp_dbf.h
View File

@ -25,6 +25,7 @@
#include "zfcp_fsf.h"
#define ZFCP_DBF_TAG_SIZE 4
#define ZFCP_DBF_ID_SIZE 7
struct zfcp_dbf_dump {
u8 tag[ZFCP_DBF_TAG_SIZE];
@ -70,7 +71,7 @@ struct zfcp_rec_dbf_record_action {
struct zfcp_rec_dbf_record {
u8 id;
u8 id2;
char id2[7];
union {
struct zfcp_rec_dbf_record_action action;
struct zfcp_rec_dbf_record_thread thread;

17
drivers/s390/scsi/zfcp_def.h
View File

@ -3,7 +3,7 @@
*
* Global definitions for the zfcp device driver.
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
#ifndef ZFCP_DEF_H
@ -243,9 +243,6 @@ struct zfcp_ls_adisc {
/* remote port status */
#define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001
#define ZFCP_STATUS_PORT_PHYS_CLOSING 0x00000004
#define ZFCP_STATUS_PORT_NO_WWPN 0x00000008
#define ZFCP_STATUS_PORT_INVALID_WWPN 0x00000020
/* well known address (WKA) port status*/
enum zfcp_wka_status {
@ -258,7 +255,6 @@ enum zfcp_wka_status {
/* logical unit status */
#define ZFCP_STATUS_UNIT_SHARED 0x00000004
#define ZFCP_STATUS_UNIT_READONLY 0x00000008
#define ZFCP_STATUS_UNIT_REGISTERED 0x00000010
#define ZFCP_STATUS_UNIT_SCSI_WORK_PENDING 0x00000020
/* FSF request status (this does not have a common part) */
@ -447,8 +443,9 @@ struct zfcp_adapter {
spinlock_t req_list_lock; /* request list lock */
struct zfcp_qdio_queue req_q; /* request queue */
spinlock_t req_q_lock; /* for operations on queue */
int req_q_pci_batch; /* SBALs since PCI indication
was last set */
ktime_t req_q_time; /* time of last fill level change */
u64 req_q_util; /* for accounting */
spinlock_t qdio_stat_lock;
u32 fsf_req_seq_no; /* FSF cmnd seq number */
wait_queue_head_t request_wq; /* can be used to wait for
more avaliable SBALs */
@ -514,6 +511,9 @@ struct zfcp_port {
u32 maxframe_size;
u32 supported_classes;
struct work_struct gid_pn_work;
struct work_struct test_link_work;
struct work_struct rport_work;
enum { RPORT_NONE, RPORT_ADD, RPORT_DEL } rport_task;
};
struct zfcp_unit {
@ -587,9 +587,6 @@ struct zfcp_fsf_req_qtcb {
/********************** ZFCP SPECIFIC DEFINES ********************************/
#define ZFCP_REQ_AUTO_CLEANUP 0x00000002
#define ZFCP_REQ_NO_QTCB 0x00000008
#define ZFCP_SET 0x00000100
#define ZFCP_CLEAR 0x00000200

284
drivers/s390/scsi/zfcp_erp.c
View File

@ -3,7 +3,7 @@
*
* Error Recovery Procedures (ERP).
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
#define KMSG_COMPONENT "zfcp"
@ -55,7 +55,7 @@ enum zfcp_erp_act_result {
static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int mask)
{
zfcp_erp_modify_adapter_status(adapter, 15, NULL,
zfcp_erp_modify_adapter_status(adapter, "erablk1", NULL,
ZFCP_STATUS_COMMON_UNBLOCKED | mask,
ZFCP_CLEAR);
}
@ -75,9 +75,9 @@ static void zfcp_erp_action_ready(struct zfcp_erp_action *act)
struct zfcp_adapter *adapter = act->adapter;
list_move(&act->list, &act->adapter->erp_ready_head);
zfcp_rec_dbf_event_action(146, act);
zfcp_rec_dbf_event_action("erardy1", act);
up(&adapter->erp_ready_sem);
zfcp_rec_dbf_event_thread(2, adapter);
zfcp_rec_dbf_event_thread("erardy2", adapter);
}
static void zfcp_erp_action_dismiss(struct zfcp_erp_action *act)
@ -208,7 +208,7 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need,
static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
struct zfcp_port *port,
struct zfcp_unit *unit, u8 id, void *ref)
struct zfcp_unit *unit, char *id, void *ref)
{
int retval = 1, need;
struct zfcp_erp_action *act = NULL;
@ -228,7 +228,7 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
++adapter->erp_total_count;
list_add_tail(&act->list, &adapter->erp_ready_head);
up(&adapter->erp_ready_sem);
zfcp_rec_dbf_event_thread(1, adapter);
zfcp_rec_dbf_event_thread("eracte1", adapter);
retval = 0;
out:
zfcp_rec_dbf_event_trigger(id, ref, want, need, act,
@ -237,13 +237,14 @@ static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,
}
static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
int clear_mask, u8 id, void *ref)
int clear_mask, char *id, void *ref)
{
zfcp_erp_adapter_block(adapter, clear_mask);
zfcp_scsi_schedule_rports_block(adapter);
/* ensure propagation of failed status to new devices */
if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {
zfcp_erp_adapter_failed(adapter, 13, NULL);
zfcp_erp_adapter_failed(adapter, "erareo1", NULL);
return -EIO;
}
return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER,
@ -258,7 +259,7 @@ static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,
* @ref: Reference for debug trace event.
*/
void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
u8 id, void *ref)
char *id, void *ref)
{
unsigned long flags;
@ -277,7 +278,7 @@ void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,
* @ref: Reference for debug trace event.
*/
void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,
u8 id, void *ref)
char *id, void *ref)
{
int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
zfcp_erp_adapter_reopen(adapter, clear | flags, id, ref);
@ -290,7 +291,8 @@ void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,
* @id: Id for debug trace event.
* @ref: Reference for debug trace event.
*/
void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, u8 id, void *ref)
void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id,
void *ref)
{
int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
zfcp_erp_port_reopen(port, clear | flags, id, ref);
@ -303,7 +305,8 @@ void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, u8 id, void *ref)
* @id: Id for debug trace event.
* @ref: Reference for debug trace event.
*/
void zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear, u8 id, void *ref)
void zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear, char *id,
void *ref)
{
int flags = ZFCP_STATUS_COMMON_RUNNING | ZFCP_STATUS_COMMON_ERP_FAILED;
zfcp_erp_unit_reopen(unit, clear | flags, id, ref);
@ -311,15 +314,16 @@ void zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear, u8 id, void *ref)
static void zfcp_erp_port_block(struct zfcp_port *port, int clear)
{
zfcp_erp_modify_port_status(port, 17, NULL,
zfcp_erp_modify_port_status(port, "erpblk1", NULL,
ZFCP_STATUS_COMMON_UNBLOCKED | clear,
ZFCP_CLEAR);
}
static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port,
int clear, u8 id, void *ref)
int clear, char *id, void *ref)
{
zfcp_erp_port_block(port, clear);
zfcp_scsi_schedule_rport_block(port);
if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
return;
@ -334,7 +338,7 @@ static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port,
* @id: Id for debug trace event.
* @ref: Reference for debug trace event.
*/
void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, u8 id,
void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id,
void *ref)
{
unsigned long flags;
@ -347,14 +351,15 @@ void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, u8 id,
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id,
static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id,
void *ref)
{
zfcp_erp_port_block(port, clear);
zfcp_scsi_schedule_rport_block(port);
if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {
/* ensure propagation of failed status to new devices */
zfcp_erp_port_failed(port, 14, NULL);
zfcp_erp_port_failed(port, "erpreo1", NULL);
return -EIO;
}
@ -369,7 +374,7 @@ static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id,
*
* Returns 0 if recovery has been triggered, < 0 if not.
*/
int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id, void *ref)
int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id, void *ref)
{
unsigned long flags;
int retval;
@ -386,12 +391,12 @@ int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, u8 id, void *ref)
static void zfcp_erp_unit_block(struct zfcp_unit *unit, int clear_mask)
{
zfcp_erp_modify_unit_status(unit, 19, NULL,
zfcp_erp_modify_unit_status(unit, "erublk1", NULL,
ZFCP_STATUS_COMMON_UNBLOCKED | clear_mask,
ZFCP_CLEAR);
}
static void _zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id,
static void _zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, char *id,
void *ref)
{
struct zfcp_adapter *adapter = unit->port->adapter;
@ -411,7 +416,8 @@ static void _zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id,
* @clear_mask: specifies flags in unit status to be cleared
* Return: 0 on success, < 0 on error
*/
void zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id, void *ref)
void zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, char *id,
void *ref)
{
unsigned long flags;
struct zfcp_port *port = unit->port;
@ -437,28 +443,28 @@ static int status_change_clear(unsigned long mask, atomic_t *status)
static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)
{
if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status))
zfcp_rec_dbf_event_adapter(16, NULL, adapter);
zfcp_rec_dbf_event_adapter("eraubl1", NULL, adapter);
atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status);
}
static void zfcp_erp_port_unblock(struct zfcp_port *port)
{
if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status))
zfcp_rec_dbf_event_port(18, NULL, port);
zfcp_rec_dbf_event_port("erpubl1", NULL, port);
atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status);
}
static void zfcp_erp_unit_unblock(struct zfcp_unit *unit)
{
if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status))
zfcp_rec_dbf_event_unit(20, NULL, unit);
zfcp_rec_dbf_event_unit("eruubl1", NULL, unit);
atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status);
}
static void zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action)
{
list_move(&erp_action->list, &erp_action->adapter->erp_running_head);
zfcp_rec_dbf_event_action(145, erp_action);
zfcp_rec_dbf_event_action("erator1", erp_action);
}
static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act)
@ -474,11 +480,11 @@ static void zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *act)
if (act->status & (ZFCP_STATUS_ERP_DISMISSED |
ZFCP_STATUS_ERP_TIMEDOUT)) {
act->fsf_req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
zfcp_rec_dbf_event_action(142, act);
zfcp_rec_dbf_event_action("erscf_1", act);
act->fsf_req->erp_action = NULL;
}
if (act->status & ZFCP_STATUS_ERP_TIMEDOUT)
zfcp_rec_dbf_event_action(143, act);
zfcp_rec_dbf_event_action("erscf_2", act);
if (act->fsf_req->status & (ZFCP_STATUS_FSFREQ_COMPLETED |
ZFCP_STATUS_FSFREQ_DISMISSED))
act->fsf_req = NULL;
@ -530,7 +536,7 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action)
}
static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
int clear, u8 id, void *ref)
int clear, char *id, void *ref)
{
struct zfcp_port *port;
@ -538,8 +544,8 @@ static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
_zfcp_erp_port_reopen(port, clear, id, ref);
}
static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, u8 id,
void *ref)
static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
char *id, void *ref)
{
struct zfcp_unit *unit;
@ -559,28 +565,28 @@ static void zfcp_erp_strategy_followup_actions(struct zfcp_erp_action *act)
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (status == ZFCP_ERP_SUCCEEDED)
_zfcp_erp_port_reopen_all(adapter, 0, 70, NULL);
_zfcp_erp_port_reopen_all(adapter, 0, "ersfa_1", NULL);
else
_zfcp_erp_adapter_reopen(adapter, 0, 71, NULL);
_zfcp_erp_adapter_reopen(adapter, 0, "ersfa_2", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
if (status == ZFCP_ERP_SUCCEEDED)
_zfcp_erp_port_reopen(port, 0, 72, NULL);
_zfcp_erp_port_reopen(port, 0, "ersfa_3", NULL);
else
_zfcp_erp_adapter_reopen(adapter, 0, 73, NULL);
_zfcp_erp_adapter_reopen(adapter, 0, "ersfa_4", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (status == ZFCP_ERP_SUCCEEDED)
_zfcp_erp_unit_reopen_all(port, 0, 74, NULL);
_zfcp_erp_unit_reopen_all(port, 0, "ersfa_5", NULL);
else
_zfcp_erp_port_forced_reopen(port, 0, 75, NULL);
_zfcp_erp_port_forced_reopen(port, 0, "ersfa_6", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if (status != ZFCP_ERP_SUCCEEDED)
_zfcp_erp_port_reopen(unit->port, 0, 76, NULL);
_zfcp_erp_port_reopen(unit->port, 0, "ersfa_7", NULL);
break;
}
}
@ -617,7 +623,7 @@ static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)
adapter->peer_d_id);
if (IS_ERR(port)) /* error or port already attached */
return;
_zfcp_erp_port_reopen(port, 0, 150, NULL);
_zfcp_erp_port_reopen(port, 0, "ereptp1", NULL);
}
static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action)
@ -640,9 +646,9 @@ static int zfcp_erp_adapter_strat_fsf_xconf(struct zfcp_erp_action *erp_action)
return ZFCP_ERP_FAILED;
}
zfcp_rec_dbf_event_thread_lock(6, adapter);
zfcp_rec_dbf_event_thread_lock("erasfx1", adapter);
down(&adapter->erp_ready_sem);
zfcp_rec_dbf_event_thread_lock(7, adapter);
zfcp_rec_dbf_event_thread_lock("erasfx2", adapter);
if (erp_action->status & ZFCP_STATUS_ERP_TIMEDOUT)
break;
@ -681,9 +687,9 @@ static int zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *act)
if (ret)
return ZFCP_ERP_FAILED;
zfcp_rec_dbf_event_thread_lock(8, adapter);
zfcp_rec_dbf_event_thread_lock("erasox1", adapter);
down(&adapter->erp_ready_sem);
zfcp_rec_dbf_event_thread_lock(9, adapter);
zfcp_rec_dbf_event_thread_lock("erasox2", adapter);
if (act->status & ZFCP_STATUS_ERP_TIMEDOUT)
return ZFCP_ERP_FAILED;
@ -705,60 +711,59 @@ static int zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *act)
return ZFCP_ERP_SUCCEEDED;
}
static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *act,
int close)
static void zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *act)
{
int retval = ZFCP_ERP_SUCCEEDED;
struct zfcp_adapter *adapter = act->adapter;
if (close)
goto close_only;
retval = zfcp_erp_adapter_strategy_open_qdio(act);
if (retval != ZFCP_ERP_SUCCEEDED)
goto failed_qdio;
retval = zfcp_erp_adapter_strategy_open_fsf(act);
if (retval != ZFCP_ERP_SUCCEEDED)
goto failed_openfcp;
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &act->adapter->status);
return ZFCP_ERP_SUCCEEDED;
close_only:
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&act->adapter->status);
failed_openfcp:
/* close queues to ensure that buffers are not accessed by adapter */
zfcp_qdio_close(adapter);
zfcp_fsf_req_dismiss_all(adapter);
adapter->fsf_req_seq_no = 0;
/* all ports and units are closed */
zfcp_erp_modify_adapter_status(adapter, 24, NULL,
zfcp_erp_modify_adapter_status(adapter, "erascl1", NULL,
ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
failed_qdio:
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
}
static int zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
if (zfcp_erp_adapter_strategy_open_qdio(act)) {
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&act->adapter->status);
return retval;
&adapter->status);
return ZFCP_ERP_FAILED;
}
if (zfcp_erp_adapter_strategy_open_fsf(act)) {
zfcp_erp_adapter_strategy_close(act);
return ZFCP_ERP_FAILED;
}
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &adapter->status);
return ZFCP_ERP_SUCCEEDED;
}
static int zfcp_erp_adapter_strategy(struct zfcp_erp_action *act)
{
int retval;
struct zfcp_adapter *adapter = act->adapter;
zfcp_erp_adapter_strategy_generic(act, 1); /* close */
if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN) {
zfcp_erp_adapter_strategy_close(act);
if (act->status & ZFCP_STATUS_ERP_CLOSE_ONLY)
return ZFCP_ERP_EXIT;
}
retval = zfcp_erp_adapter_strategy_generic(act, 0); /* open */
if (retval == ZFCP_ERP_FAILED)
if (zfcp_erp_adapter_strategy_open(act)) {
ssleep(8);
return ZFCP_ERP_FAILED;
}
return retval;
return ZFCP_ERP_SUCCEEDED;
}
static int zfcp_erp_port_forced_strategy_close(struct zfcp_erp_action *act)
@ -777,10 +782,7 @@ static int zfcp_erp_port_forced_strategy_close(struct zfcp_erp_action *act)
static void zfcp_erp_port_strategy_clearstati(struct zfcp_port *port)
{
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
ZFCP_STATUS_PORT_PHYS_CLOSING |
ZFCP_STATUS_PORT_INVALID_WWPN,
&port->status);
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED, &port->status);
}
static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action)
@ -836,7 +838,7 @@ static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act)
struct zfcp_port *port = act->port;
if (port->wwpn != adapter->peer_wwpn) {
zfcp_erp_port_failed(port, 25, NULL);
zfcp_erp_port_failed(port, "eroptp1", NULL);
return ZFCP_ERP_FAILED;
}
port->d_id = adapter->peer_d_id;
@ -855,7 +857,7 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
if (retval)
zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED);
zfcp_port_put(port);
}
static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
@ -871,17 +873,15 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)
return zfcp_erp_open_ptp_port(act);
if (!port->d_id) {
queue_work(zfcp_data.work_queue, &port->gid_pn_work);
zfcp_port_get(port);
if (!queue_work(zfcp_data.work_queue,
&port->gid_pn_work))
zfcp_port_put(port);
return ZFCP_ERP_CONTINUES;
}
case ZFCP_ERP_STEP_NAMESERVER_LOOKUP:
if (!port->d_id) {
if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) {
zfcp_erp_port_failed(port, 26, NULL);
return ZFCP_ERP_EXIT;
}
if (!port->d_id)
return ZFCP_ERP_FAILED;
}
return zfcp_erp_port_strategy_open_port(act);
case ZFCP_ERP_STEP_PORT_OPENING:
@ -995,7 +995,7 @@ static int zfcp_erp_strategy_check_unit(struct zfcp_unit *unit, int result)
"port 0x%016Lx\n",
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 21, NULL);
zfcp_erp_unit_failed(unit, "erusck1", NULL);
}
break;
}
@ -1025,7 +1025,7 @@ static int zfcp_erp_strategy_check_port(struct zfcp_port *port, int result)
dev_err(&port->adapter->ccw_device->dev,
"ERP failed for remote port 0x%016Lx\n",
(unsigned long long)port->wwpn);
zfcp_erp_port_failed(port, 22, NULL);
zfcp_erp_port_failed(port, "erpsck1", NULL);
}
break;
}
@ -1052,7 +1052,7 @@ static int zfcp_erp_strategy_check_adapter(struct zfcp_adapter *adapter,
dev_err(&adapter->ccw_device->dev,
"ERP cannot recover an error "
"on the FCP device\n");
zfcp_erp_adapter_failed(adapter, 23, NULL);
zfcp_erp_adapter_failed(adapter, "erasck1", NULL);
}
break;
}
@ -1117,7 +1117,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) {
_zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_COMMON_ERP_FAILED,
67, NULL);
"ersscg1", NULL);
return ZFCP_ERP_EXIT;
}
break;
@ -1127,7 +1127,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
if (zfcp_erp_strat_change_det(&port->status, erp_status)) {
_zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
68, NULL);
"ersscg2", NULL);
return ZFCP_ERP_EXIT;
}
break;
@ -1136,7 +1136,7 @@ static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
if (zfcp_erp_strat_change_det(&unit->status, erp_status)) {
_zfcp_erp_unit_reopen(unit,
ZFCP_STATUS_COMMON_ERP_FAILED,
69, NULL);
"ersscg3", NULL);
return ZFCP_ERP_EXIT;
}
break;
@ -1155,7 +1155,7 @@ static void zfcp_erp_action_dequeue(struct zfcp_erp_action *erp_action)
}
list_del(&erp_action->list);
zfcp_rec_dbf_event_action(144, erp_action);
zfcp_rec_dbf_event_action("eractd1", erp_action);
switch (erp_action->action) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
@ -1214,38 +1214,8 @@ static void zfcp_erp_schedule_work(struct zfcp_unit *unit)
atomic_set_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
INIT_WORK(&p->work, zfcp_erp_scsi_scan);
p->unit = unit;
queue_work(zfcp_data.work_queue, &p->work);
}
static void zfcp_erp_rport_register(struct zfcp_port *port)
{
struct fc_rport_identifiers ids;
ids.node_name = port->wwnn;
ids.port_name = port->wwpn;
ids.port_id = port->d_id;
ids.roles = FC_RPORT_ROLE_FCP_TARGET;
port->rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids);
if (!port->rport) {
dev_err(&port->adapter->ccw_device->dev,
"Registering port 0x%016Lx failed\n",
(unsigned long long)port->wwpn);
return;
}
scsi_target_unblock(&port->rport->dev);
port->rport->maxframe_size = port->maxframe_size;
port->rport->supported_classes = port->supported_classes;
}
static void zfcp_erp_rports_del(struct zfcp_adapter *adapter)
{
struct zfcp_port *port;
list_for_each_entry(port, &adapter->port_list_head, list) {
if (!port->rport)
continue;
fc_remote_port_delete(port->rport);
port->rport = NULL;
}
if (!queue_work(zfcp_data.work_queue, &p->work))
zfcp_unit_put(unit);
}
static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
@ -1256,10 +1226,8 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if ((result == ZFCP_ERP_SUCCEEDED) &&
!unit->device && port->rport) {
atomic_set_mask(ZFCP_STATUS_UNIT_REGISTERED,
&unit->status);
flush_work(&port->rport_work);
if ((result == ZFCP_ERP_SUCCEEDED) && !unit->device) {
if (!(atomic_read(&unit->status) &
ZFCP_STATUS_UNIT_SCSI_WORK_PENDING))
zfcp_erp_schedule_work(unit);
@ -1269,27 +1237,17 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN) {
zfcp_port_put(port);
return;
}
if ((result == ZFCP_ERP_SUCCEEDED) && !port->rport)
zfcp_erp_rport_register(port);
if ((result != ZFCP_ERP_SUCCEEDED) && port->rport) {
fc_remote_port_delete(port->rport);
port->rport = NULL;
}
if (result == ZFCP_ERP_SUCCEEDED)
zfcp_scsi_schedule_rport_register(port);
zfcp_port_put(port);
break;
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (result != ZFCP_ERP_SUCCEEDED) {
unregister_service_level(&adapter->service_level);
zfcp_erp_rports_del(adapter);
} else {
if (result == ZFCP_ERP_SUCCEEDED) {
register_service_level(&adapter->service_level);
schedule_work(&adapter->scan_work);
}
} else
unregister_service_level(&adapter->service_level);
zfcp_adapter_put(adapter);
break;
}
@ -1346,7 +1304,7 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
erp_action->status |= ZFCP_STATUS_ERP_LOWMEM;
}
if (adapter->erp_total_count == adapter->erp_low_mem_count)
_zfcp_erp_adapter_reopen(adapter, 0, 66, NULL);
_zfcp_erp_adapter_reopen(adapter, 0, "erstgy1", NULL);
else {
zfcp_erp_strategy_memwait(erp_action);
retval = ZFCP_ERP_CONTINUES;
@ -1406,9 +1364,9 @@ static int zfcp_erp_thread(void *data)
zfcp_erp_wakeup(adapter);
}
zfcp_rec_dbf_event_thread_lock(4, adapter);
zfcp_rec_dbf_event_thread_lock("erthrd1", adapter);
ignore = down_interruptible(&adapter->erp_ready_sem);
zfcp_rec_dbf_event_thread_lock(5, adapter);
zfcp_rec_dbf_event_thread_lock("erthrd2", adapter);
}
atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status);
@ -1453,7 +1411,7 @@ void zfcp_erp_thread_kill(struct zfcp_adapter *adapter)
{
atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_KILL, &adapter->status);
up(&adapter->erp_ready_sem);
zfcp_rec_dbf_event_thread_lock(3, adapter);
zfcp_rec_dbf_event_thread_lock("erthrk1", adapter);
wait_event(adapter->erp_thread_wqh,
!(atomic_read(&adapter->status) &
@ -1469,7 +1427,7 @@ void zfcp_erp_thread_kill(struct zfcp_adapter *adapter)
* @id: Event id for debug trace.
* @ref: Reference for debug trace.
*/
void zfcp_erp_adapter_failed(struct zfcp_adapter *adapter, u8 id, void *ref)
void zfcp_erp_adapter_failed(struct zfcp_adapter *adapter, char *id, void *ref)
{
zfcp_erp_modify_adapter_status(adapter, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
@ -1481,7 +1439,7 @@ void zfcp_erp_adapter_failed(struct zfcp_adapter *adapter, u8 id, void *ref)
* @id: Event id for debug trace.
* @ref: Reference for debug trace.
*/
void zfcp_erp_port_failed(struct zfcp_port *port, u8 id, void *ref)
void zfcp_erp_port_failed(struct zfcp_port *port, char *id, void *ref)
{
zfcp_erp_modify_port_status(port, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
@ -1493,7 +1451,7 @@ void zfcp_erp_port_failed(struct zfcp_port *port, u8 id, void *ref)
* @id: Event id for debug trace.
* @ref: Reference for debug trace.
*/
void zfcp_erp_unit_failed(struct zfcp_unit *unit, u8 id, void *ref)
void zfcp_erp_unit_failed(struct zfcp_unit *unit, char *id, void *ref)
{
zfcp_erp_modify_unit_status(unit, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED, ZFCP_SET);
@ -1520,7 +1478,7 @@ void zfcp_erp_wait(struct zfcp_adapter *adapter)
*
* Changes in common status bits are propagated to attached ports and units.
*/
void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, u8 id,
void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, char *id,
void *ref, u32 mask, int set_or_clear)
{
struct zfcp_port *port;
@ -1554,7 +1512,7 @@ void zfcp_erp_modify_adapter_status(struct zfcp_adapter *adapter, u8 id,
*
* Changes in common status bits are propagated to attached units.
*/
void zfcp_erp_modify_port_status(struct zfcp_port *port, u8 id, void *ref,
void zfcp_erp_modify_port_status(struct zfcp_port *port, char *id, void *ref,
u32 mask, int set_or_clear)
{
struct zfcp_unit *unit;
@ -1586,7 +1544,7 @@ void zfcp_erp_modify_port_status(struct zfcp_port *port, u8 id, void *ref,
* @mask: status bits to change
* @set_or_clear: ZFCP_SET or ZFCP_CLEAR
*/
void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u8 id, void *ref,
void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, char *id, void *ref,
u32 mask, int set_or_clear)
{
if (set_or_clear == ZFCP_SET) {
@ -1609,7 +1567,7 @@ void zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u8 id, void *ref,
* @id: The debug trace id.
* @id: Reference for the debug trace.
*/
void zfcp_erp_port_boxed(struct zfcp_port *port, u8 id, void *ref)
void zfcp_erp_port_boxed(struct zfcp_port *port, char *id, void *ref)
{
unsigned long flags;
@ -1626,7 +1584,7 @@ void zfcp_erp_port_boxed(struct zfcp_port *port, u8 id, void *ref)
* @id: The debug trace id.
* @id: Reference for the debug trace.
*/
void zfcp_erp_unit_boxed(struct zfcp_unit *unit, u8 id, void *ref)
void zfcp_erp_unit_boxed(struct zfcp_unit *unit, char *id, void *ref)
{
zfcp_erp_modify_unit_status(unit, id, ref,
ZFCP_STATUS_COMMON_ACCESS_BOXED, ZFCP_SET);
@ -1642,7 +1600,7 @@ void zfcp_erp_unit_boxed(struct zfcp_unit *unit, u8 id, void *ref)
* Since the adapter has denied access, stop using the port and the
* attached units.
*/
void zfcp_erp_port_access_denied(struct zfcp_port *port, u8 id, void *ref)
void zfcp_erp_port_access_denied(struct zfcp_port *port, char *id, void *ref)
{
unsigned long flags;
@ -1661,14 +1619,14 @@ void zfcp_erp_port_access_denied(struct zfcp_port *port, u8 id, void *ref)
*
* Since the adapter has denied access, stop using the unit.
*/
void zfcp_erp_unit_access_denied(struct zfcp_unit *unit, u8 id, void *ref)
void zfcp_erp_unit_access_denied(struct zfcp_unit *unit, char *id, void *ref)
{
zfcp_erp_modify_unit_status(unit, id, ref,
ZFCP_STATUS_COMMON_ERP_FAILED |
ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
}
static void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, u8 id,
static void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, char *id,
void *ref)
{
int status = atomic_read(&unit->status);
@ -1679,7 +1637,7 @@ static void zfcp_erp_unit_access_changed(struct zfcp_unit *unit, u8 id,
zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
}
static void zfcp_erp_port_access_changed(struct zfcp_port *port, u8 id,
static void zfcp_erp_port_access_changed(struct zfcp_port *port, char *id,
void *ref)
{
struct zfcp_unit *unit;
@ -1701,7 +1659,7 @@ static void zfcp_erp_port_access_changed(struct zfcp_port *port, u8 id,
* @id: Id for debug trace
* @ref: Reference for debug trace
*/
void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, u8 id,
void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, char *id,
void *ref)
{
struct zfcp_port *port;

73
drivers/s390/scsi/zfcp_ext.h
View File

@ -3,7 +3,7 @@
*
* External function declarations.
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
#ifndef ZFCP_EXT_H
@ -35,15 +35,15 @@ extern struct miscdevice zfcp_cfdc_misc;
/* zfcp_dbf.c */
extern int zfcp_adapter_debug_register(struct zfcp_adapter *);
extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_thread(u8, struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_thread_lock(u8, struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_adapter(u8, void *, struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_port(u8, void *, struct zfcp_port *);
extern void zfcp_rec_dbf_event_unit(u8, void *, struct zfcp_unit *);
extern void zfcp_rec_dbf_event_trigger(u8, void *, u8, u8, void *,
extern void zfcp_rec_dbf_event_thread(char *, struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_thread_lock(char *, struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_adapter(char *, void *, struct zfcp_adapter *);
extern void zfcp_rec_dbf_event_port(char *, void *, struct zfcp_port *);
extern void zfcp_rec_dbf_event_unit(char *, void *, struct zfcp_unit *);
extern void zfcp_rec_dbf_event_trigger(char *, void *, u8, u8, void *,
struct zfcp_adapter *,
struct zfcp_port *, struct zfcp_unit *);
extern void zfcp_rec_dbf_event_action(u8, struct zfcp_erp_action *);
extern void zfcp_rec_dbf_event_action(char *, struct zfcp_erp_action *);
extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
struct fsf_status_read_buffer *);
@ -66,31 +66,34 @@ extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
struct scsi_cmnd *);
/* zfcp_erp.c */
extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u8, void *,
u32, int);
extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, u8, void *);
extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, u8, void *);
extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, u8, void *);
extern void zfcp_erp_modify_port_status(struct zfcp_port *, u8, void *, u32,
extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, char *,
void *, u32, int);
extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *, void *);
extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *,
void *);
extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, char *, void *);
extern void zfcp_erp_modify_port_status(struct zfcp_port *, char *, void *, u32,
int);
extern int zfcp_erp_port_reopen(struct zfcp_port *, int, u8, void *);
extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, u8, void *);
extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, u8, void *);
extern void zfcp_erp_port_failed(struct zfcp_port *, u8, void *);
extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u8, void *, u32,
extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *, void *);
extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *, void *);
extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *,
void *);
extern void zfcp_erp_port_failed(struct zfcp_port *, char *, void *);
extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, char *, void *, u32,
int);
extern void zfcp_erp_unit_reopen(struct zfcp_unit *, int, u8, void *);
extern void zfcp_erp_unit_shutdown(struct zfcp_unit *, int, u8, void *);
extern void zfcp_erp_unit_failed(struct zfcp_unit *, u8, void *);
extern void zfcp_erp_unit_reopen(struct zfcp_unit *, int, char *, void *);
extern void zfcp_erp_unit_shutdown(struct zfcp_unit *, int, char *, void *);
extern void zfcp_erp_unit_failed(struct zfcp_unit *, char *, void *);
extern int zfcp_erp_thread_setup(struct zfcp_adapter *);
extern void zfcp_erp_thread_kill(struct zfcp_adapter *);
extern void zfcp_erp_wait(struct zfcp_adapter *);
extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
extern void zfcp_erp_port_boxed(struct zfcp_port *, u8, void *);
extern void zfcp_erp_unit_boxed(struct zfcp_unit *, u8, void *);
extern void zfcp_erp_port_access_denied(struct zfcp_port *, u8, void *);
extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8, void *);
extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, u8, void *);
extern void zfcp_erp_port_boxed(struct zfcp_port *, char *, void *);
extern void zfcp_erp_unit_boxed(struct zfcp_unit *, char *, void *);
extern void zfcp_erp_port_access_denied(struct zfcp_port *, char *, void *);
extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, char *, void *);
extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, char *,
void *);
extern void zfcp_erp_timeout_handler(unsigned long);
extern void zfcp_erp_port_strategy_open_lookup(struct work_struct *);
@ -101,6 +104,7 @@ extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
extern int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *);
extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
extern void zfcp_test_link(struct zfcp_port *);
extern void zfcp_fc_link_test_work(struct work_struct *);
extern void zfcp_fc_nameserver_init(struct zfcp_adapter *);
/* zfcp_fsf.c */
@ -125,16 +129,13 @@ extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
struct zfcp_erp_action *);
extern int zfcp_fsf_send_els(struct zfcp_send_els *);
extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
struct zfcp_unit *,
struct scsi_cmnd *, int, int);
extern int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *,
struct scsi_cmnd *);
extern void zfcp_fsf_req_complete(struct zfcp_fsf_req *);
extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *,
struct zfcp_unit *, u8, int);
extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *, u8);
extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long,
struct zfcp_adapter *,
struct zfcp_unit *, int);
struct zfcp_unit *);
/* zfcp_qdio.c */
extern int zfcp_qdio_allocate(struct zfcp_adapter *);
@ -153,6 +154,10 @@ extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
extern struct fc_function_template zfcp_transport_functions;
extern void zfcp_scsi_rport_work(struct work_struct *);
extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *);
extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *);
/* zfcp_sysfs.c */
extern struct attribute_group zfcp_sysfs_unit_attrs;

80
drivers/s390/scsi/zfcp_fc.c
View File

@ -3,7 +3,7 @@
*
* Fibre Channel related functions for the zfcp device driver.
*
* Copyright IBM Corporation 2008
* Copyright IBM Corporation 2008, 2009
*/
#define KMSG_COMPONENT "zfcp"
@ -98,8 +98,12 @@ static void zfcp_wka_port_offline(struct work_struct *work)
struct zfcp_wka_port *wka_port =
container_of(dw, struct zfcp_wka_port, work);
wait_event(wka_port->completion_wq,
atomic_read(&wka_port->refcount) == 0);
/* Don't wait forvever. If the wka_port is too busy take it offline
through a new call later */
if (!wait_event_timeout(wka_port->completion_wq,
atomic_read(&wka_port->refcount) == 0,
HZ >> 1))
return;
mutex_lock(&wka_port->mutex);
if ((atomic_read(&wka_port->refcount) != 0) ||
@ -145,16 +149,10 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
struct zfcp_port *port;
read_lock_irqsave(&zfcp_data.config_lock, flags);
list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) {
if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_PHYS_OPEN))
/* Try to connect to unused ports anyway. */
zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
82, fsf_req);
else if ((port->d_id & range) == (elem->nport_did & range))
/* Check connection status for connected ports */
list_for_each_entry(port, &fsf_req->adapter->port_list_head, list)
if ((port->d_id & range) == (elem->nport_did & range))
zfcp_test_link(port);
}
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
@ -196,7 +194,7 @@ static void zfcp_fc_incoming_wwpn(struct zfcp_fsf_req *req, u64 wwpn)
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
if (port && (port->wwpn == wwpn))
zfcp_erp_port_forced_reopen(port, 0, 83, req);
zfcp_erp_port_forced_reopen(port, 0, "fciwwp1", req);
}
static void zfcp_fc_incoming_plogi(struct zfcp_fsf_req *req)
@ -259,10 +257,9 @@ static void zfcp_fc_ns_gid_pn_eval(unsigned long data)
if (ct->status)
return;
if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT) {
atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status);
if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT)
return;
}
/* paranoia */
if (ct_iu_req->wwpn != port->wwpn)
return;
@ -375,16 +372,22 @@ static void zfcp_fc_adisc_handler(unsigned long data)
if (adisc->els.status) {
/* request rejected or timed out */
zfcp_erp_port_forced_reopen(port, 0, 63, NULL);
zfcp_erp_port_forced_reopen(port, 0, "fcadh_1", NULL);
goto out;
}
if (!port->wwnn)
port->wwnn = ls_adisc->wwnn;
if (port->wwpn != ls_adisc->wwpn)
zfcp_erp_port_reopen(port, 0, 64, NULL);
if ((port->wwpn != ls_adisc->wwpn) ||
!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_OPEN)) {
zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
"fcadh_2", NULL);
goto out;
}
/* port is good, unblock rport without going through erp */
zfcp_scsi_schedule_rport_register(port);
out:
zfcp_port_put(port);
kfree(adisc);
@ -422,6 +425,31 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
return zfcp_fsf_send_els(&adisc->els);
}
void zfcp_fc_link_test_work(struct work_struct *work)
{
struct zfcp_port *port =
container_of(work, struct zfcp_port, test_link_work);
int retval;
if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_UNBLOCKED)) {
zfcp_port_put(port);
return; /* port erp is running and will update rport status */
}
zfcp_port_get(port);
port->rport_task = RPORT_DEL;
zfcp_scsi_rport_work(&port->rport_work);
retval = zfcp_fc_adisc(port);
if (retval == 0)
return;
/* send of ADISC was not possible */
zfcp_erp_port_forced_reopen(port, 0, "fcltwk1", NULL);
zfcp_port_put(port);
}
/**
* zfcp_test_link - lightweight link test procedure
* @port: port to be tested
@ -432,17 +460,9 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
*/
void zfcp_test_link(struct zfcp_port *port)
{
int retval;
zfcp_port_get(port);
retval = zfcp_fc_adisc(port);
if (retval == 0)
return;
/* send of ADISC was not possible */
if (!queue_work(zfcp_data.work_queue, &port->test_link_work))
zfcp_port_put(port);
if (retval != -EBUSY)
zfcp_erp_port_forced_reopen(port, 0, 65, NULL);
}
static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft, int buf_num)
@ -529,7 +549,7 @@ static void zfcp_validate_port(struct zfcp_port *port)
zfcp_port_put(port);
return;
}
zfcp_erp_port_shutdown(port, 0, 151, NULL);
zfcp_erp_port_shutdown(port, 0, "fcpval1", NULL);
zfcp_erp_wait(adapter);
zfcp_port_put(port);
zfcp_port_dequeue(port);
@ -592,7 +612,7 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft, int max_entries)
if (IS_ERR(port))
ret = PTR_ERR(port);
else
zfcp_erp_port_reopen(port, 0, 149, NULL);
zfcp_erp_port_reopen(port, 0, "fcegpf1", NULL);
}
zfcp_erp_wait(adapter);

240
drivers/s390/scsi/zfcp_fsf.c
View File

@ -3,7 +3,7 @@
*
* Implementation of FSF commands.
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
#define KMSG_COMPONENT "zfcp"
@ -12,11 +12,14 @@
#include <linux/blktrace_api.h>
#include "zfcp_ext.h"
#define ZFCP_REQ_AUTO_CLEANUP 0x00000002
#define ZFCP_REQ_NO_QTCB 0x00000008
static void zfcp_fsf_request_timeout_handler(unsigned long data)
{
struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 62,
NULL);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"fsrth_1", NULL);
}
static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req,
@ -75,7 +78,7 @@ static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req,
(unsigned long long)port->wwpn);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
zfcp_erp_port_access_denied(port, 55, req);
zfcp_erp_port_access_denied(port, "fspad_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@ -89,7 +92,7 @@ static void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req,
(unsigned long long)unit->port->wwpn);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
zfcp_erp_unit_access_denied(unit, 59, req);
zfcp_erp_unit_access_denied(unit, "fsuad_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@ -97,7 +100,7 @@ static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req)
{
dev_err(&req->adapter->ccw_device->dev, "FCP device not "
"operational because of an unsupported FC class\n");
zfcp_erp_adapter_shutdown(req->adapter, 0, 123, req);
zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@ -159,20 +162,13 @@ static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
list_for_each_entry(port, &adapter->port_list_head, list)
if (port->d_id == d_id) {
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
switch (sr_buf->status_subtype) {
case FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT:
zfcp_erp_port_reopen(port, 0, 101, req);
break;
case FSF_STATUS_READ_SUB_ERROR_PORT:
zfcp_erp_port_shutdown(port, 0, 122, req);
break;
}
zfcp_erp_port_reopen(port, 0, "fssrpc1", req);
return;
}
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id,
static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id,
struct fsf_link_down_info *link_down)
{
struct zfcp_adapter *adapter = req->adapter;
@ -181,6 +177,7 @@ static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, u8 id,
return;
atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
zfcp_scsi_schedule_rports_block(adapter);
if (!link_down)
goto out;
@ -261,13 +258,13 @@ static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req)
switch (sr_buf->status_subtype) {
case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
zfcp_fsf_link_down_info_eval(req, 38, ldi);
zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi);
break;
case FSF_STATUS_READ_SUB_FDISC_FAILED:
zfcp_fsf_link_down_info_eval(req, 39, ldi);
zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi);
break;
case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
zfcp_fsf_link_down_info_eval(req, 40, NULL);
zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL);
};
}
@ -307,22 +304,23 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
dev_info(&adapter->ccw_device->dev,
"The local link has been restored\n");
/* All ports should be marked as ready to run again */
zfcp_erp_modify_adapter_status(adapter, 30, NULL,
zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL,
ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
ZFCP_STATUS_COMMON_ERP_FAILED,
102, req);
"fssrh_2", req);
break;
case FSF_STATUS_READ_NOTIFICATION_LOST:
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED)
zfcp_erp_adapter_access_changed(adapter, 135, req);
zfcp_erp_adapter_access_changed(adapter, "fssrh_3",
req);
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
schedule_work(&adapter->scan_work);
break;
case FSF_STATUS_READ_CFDC_UPDATED:
zfcp_erp_adapter_access_changed(adapter, 136, req);
zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req);
break;
case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
adapter->adapter_features = sr_buf->payload.word[0];
@ -351,7 +349,7 @@ static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
dev_err(&req->adapter->ccw_device->dev,
"The FCP adapter reported a problem "
"that cannot be recovered\n");
zfcp_erp_adapter_shutdown(req->adapter, 0, 121, req);
zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req);
break;
}
/* all non-return stats set FSFREQ_ERROR*/
@ -368,7 +366,7 @@ static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req)
dev_err(&req->adapter->ccw_device->dev,
"The FCP adapter does not recognize the command 0x%x\n",
req->qtcb->header.fsf_command);
zfcp_erp_adapter_shutdown(req->adapter, 0, 120, req);
zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@ -400,17 +398,17 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
"QTCB version 0x%x not supported by FCP adapter "
"(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION,
psq->word[0], psq->word[1]);
zfcp_erp_adapter_shutdown(adapter, 0, 117, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req);
break;
case FSF_PROT_ERROR_STATE:
case FSF_PROT_SEQ_NUMB_ERROR:
zfcp_erp_adapter_reopen(adapter, 0, 98, req);
zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req);
req->status |= ZFCP_STATUS_FSFREQ_RETRY;
break;
case FSF_PROT_UNSUPP_QTCB_TYPE:
dev_err(&adapter->ccw_device->dev,
"The QTCB type is not supported by the FCP adapter\n");
zfcp_erp_adapter_shutdown(adapter, 0, 118, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req);
break;
case FSF_PROT_HOST_CONNECTION_INITIALIZING:
atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT,
@ -420,27 +418,29 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
dev_err(&adapter->ccw_device->dev,
"0x%Lx is an ambiguous request identifier\n",
(unsigned long long)qtcb->bottom.support.req_handle);
zfcp_erp_adapter_shutdown(adapter, 0, 78, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req);
break;
case FSF_PROT_LINK_DOWN:
zfcp_fsf_link_down_info_eval(req, 37, &psq->link_down_info);
zfcp_fsf_link_down_info_eval(req, "fspse_5",
&psq->link_down_info);
/* FIXME: reopening adapter now? better wait for link up */
zfcp_erp_adapter_reopen(adapter, 0, 79, req);
zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req);
break;
case FSF_PROT_REEST_QUEUE:
/* All ports should be marked as ready to run again */
zfcp_erp_modify_adapter_status(adapter, 28, NULL,
zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL,
ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
ZFCP_STATUS_COMMON_ERP_FAILED, 99, req);
ZFCP_STATUS_COMMON_ERP_FAILED,
"fspse_8", req);
break;
default:
dev_err(&adapter->ccw_device->dev,
"0x%x is not a valid transfer protocol status\n",
qtcb->prefix.prot_status);
zfcp_erp_adapter_shutdown(adapter, 0, 119, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req);
}
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
@ -526,7 +526,7 @@ static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
dev_err(&adapter->ccw_device->dev,
"Unknown or unsupported arbitrated loop "
"fibre channel topology detected\n");
zfcp_erp_adapter_shutdown(adapter, 0, 127, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req);
return -EIO;
}
@ -560,7 +560,7 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
"FCP adapter maximum QTCB size (%d bytes) "
"is too small\n",
bottom->max_qtcb_size);
zfcp_erp_adapter_shutdown(adapter, 0, 129, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req);
return;
}
atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
@ -577,11 +577,11 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
&adapter->status);
zfcp_fsf_link_down_info_eval(req, 42,
zfcp_fsf_link_down_info_eval(req, "fsecdh2",
&qtcb->header.fsf_status_qual.link_down_info);
break;
default:
zfcp_erp_adapter_shutdown(adapter, 0, 130, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req);
return;
}
@ -597,14 +597,14 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
dev_err(&adapter->ccw_device->dev,
"The FCP adapter only supports newer "
"control block versions\n");
zfcp_erp_adapter_shutdown(adapter, 0, 125, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req);
return;
}
if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) {
dev_err(&adapter->ccw_device->dev,
"The FCP adapter only supports older "
"control block versions\n");
zfcp_erp_adapter_shutdown(adapter, 0, 126, req);
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req);
}
}
@ -617,9 +617,10 @@ static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req)
if (req->data)
memcpy(req->data, bottom, sizeof(*bottom));
if (adapter->connection_features & FSF_FEATURE_NPIV_MODE)
if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) {
fc_host_permanent_port_name(shost) = bottom->wwpn;
else
fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
} else
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
fc_host_supported_speeds(shost) = bottom->supported_speed;
@ -638,20 +639,12 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
break;
case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE:
zfcp_fsf_exchange_port_evaluate(req);
zfcp_fsf_link_down_info_eval(req, 43,
zfcp_fsf_link_down_info_eval(req, "fsepdh1",
&qtcb->header.fsf_status_qual.link_down_info);
break;
}
}
static int zfcp_fsf_sbal_available(struct zfcp_adapter *adapter)
{
if (atomic_read(&adapter->req_q.count) > 0)
return 1;
atomic_inc(&adapter->qdio_outb_full);
return 0;
}
static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
__releases(&adapter->req_q_lock)
__acquires(&adapter->req_q_lock)
@ -735,7 +728,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
req->adapter = adapter;
req->fsf_command = fsf_cmd;
req->req_id = adapter->req_no++;
req->req_id = adapter->req_no;
req->sbal_number = 1;
req->sbal_first = req_q->first;
req->sbal_last = req_q->first;
@ -791,13 +784,14 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
if (zfcp_reqlist_find_safe(adapter, req))
zfcp_reqlist_remove(adapter, req);
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
zfcp_erp_adapter_reopen(adapter, 0, 116, req);
zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req);
return -EIO;
}
/* Don't increase for unsolicited status */
if (req->qtcb)
adapter->fsf_req_seq_no++;
adapter->req_no++;
return 0;
}
@ -870,14 +864,14 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
if (fsq->word[0] == fsq->word[1]) {
zfcp_erp_adapter_reopen(unit->port->adapter, 0, 104,
req);
zfcp_erp_adapter_reopen(unit->port->adapter, 0,
"fsafch1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
break;
case FSF_LUN_HANDLE_NOT_VALID:
if (fsq->word[0] == fsq->word[1]) {
zfcp_erp_port_reopen(unit->port, 0, 105, req);
zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
}
break;
@ -885,12 +879,12 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED;
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, 47, req);
zfcp_erp_port_boxed(unit->port, "fsafch3", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
case FSF_LUN_BOXED:
zfcp_erp_unit_boxed(unit, 48, req);
zfcp_erp_unit_boxed(unit, "fsafch4", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
@ -912,27 +906,22 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
/**
* zfcp_fsf_abort_fcp_command - abort running SCSI command
* @old_req_id: unsigned long
* @adapter: pointer to struct zfcp_adapter
* @unit: pointer to struct zfcp_unit
* @req_flags: integer specifying the request flags
* Returns: pointer to struct zfcp_fsf_req
*
* FIXME(design): should be watched by a timeout !!!
*/
struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
struct zfcp_adapter *adapter,
struct zfcp_unit *unit,
int req_flags)
struct zfcp_unit *unit)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
struct zfcp_adapter *adapter = unit->port->adapter;
spin_lock(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND,
req_flags, adapter->pool.fsf_req_abort);
0, adapter->pool.fsf_req_abort);
if (IS_ERR(req)) {
req = NULL;
goto out;
@ -960,7 +949,7 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
zfcp_fsf_req_free(req);
req = NULL;
out:
spin_unlock(&adapter->req_q_lock);
spin_unlock_bh(&adapter->req_q_lock);
return req;
}
@ -998,7 +987,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
ZFCP_STATUS_FSFREQ_RETRY;
break;
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(adapter, 0, 106, req);
zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
case FSF_GENERIC_COMMAND_REJECTED:
case FSF_PAYLOAD_SIZE_MISMATCH:
case FSF_REQUEST_SIZE_TOO_LARGE:
@ -1174,12 +1163,8 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els)
struct fsf_qtcb_bottom_support *bottom;
int ret = -EIO;
if (unlikely(!(atomic_read(&els->port->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
spin_lock(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS,
ZFCP_REQ_AUTO_CLEANUP, NULL);
@ -1212,7 +1197,7 @@ int zfcp_fsf_send_els(struct zfcp_send_els *els)
failed_send:
zfcp_fsf_req_free(req);
out:
spin_unlock(&adapter->req_q_lock);
spin_unlock_bh(&adapter->req_q_lock);
return ret;
}
@ -1224,7 +1209,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
int retval = -EIO;
spin_lock_bh(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter,
FSF_QTCB_EXCHANGE_CONFIG_DATA,
@ -1320,7 +1305,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
return -EOPNOTSUPP;
spin_lock_bh(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
ZFCP_REQ_AUTO_CLEANUP,
@ -1366,7 +1351,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
return -EOPNOTSUPP;
spin_lock_bh(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0,
@ -1416,7 +1401,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
"Not enough FCP adapter resources to open "
"remote port 0x%016Lx\n",
(unsigned long long)port->wwpn);
zfcp_erp_port_failed(port, 31, req);
zfcp_erp_port_failed(port, "fsoph_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
@ -1522,13 +1507,13 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req)
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(port->adapter, 0, 107, req);
zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
break;
case FSF_GOOD:
zfcp_erp_modify_port_status(port, 33, req,
zfcp_erp_modify_port_status(port, "fscph_2", req,
ZFCP_STATUS_COMMON_OPEN,
ZFCP_CLEAR);
break;
@ -1657,7 +1642,7 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
zfcp_erp_adapter_reopen(wka_port->adapter, 0, 84, req);
zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req);
}
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
@ -1712,18 +1697,18 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
struct zfcp_unit *unit;
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
goto skip_fsfstatus;
return;
switch (header->fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(port->adapter, 0, 108, req);
zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_ACCESS_DENIED:
zfcp_fsf_access_denied_port(req, port);
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(port, 50, req);
zfcp_erp_port_boxed(port, "fscpph2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
/* can't use generic zfcp_erp_modify_port_status because
@ -1752,8 +1737,6 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
&unit->status);
break;
}
skip_fsfstatus:
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_CLOSING, &port->status);
}
/**
@ -1789,8 +1772,6 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
req->erp_action = erp_action;
req->handler = zfcp_fsf_close_physical_port_handler;
erp_action->fsf_req = req;
atomic_set_mask(ZFCP_STATUS_PORT_PHYS_CLOSING,
&erp_action->port->status);
zfcp_fsf_start_erp_timer(req);
retval = zfcp_fsf_req_send(req);
@ -1825,7 +1806,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(unit->port->adapter, 0, 109, req);
zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req);
/* fall through */
case FSF_LUN_ALREADY_OPEN:
break;
@ -1835,7 +1816,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status);
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, 51, req);
zfcp_erp_port_boxed(unit->port, "fsouh_2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
@ -1851,7 +1832,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
else
zfcp_act_eval_err(adapter,
header->fsf_status_qual.word[2]);
zfcp_erp_unit_access_denied(unit, 60, req);
zfcp_erp_unit_access_denied(unit, "fsouh_3", req);
atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status);
atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@ -1862,7 +1843,7 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
"0x%016Lx on port 0x%016Lx\n",
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 34, req);
zfcp_erp_unit_failed(unit, "fsouh_4", req);
/* fall through */
case FSF_INVALID_COMMAND_OPTION:
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@ -1911,9 +1892,9 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
"port 0x%016Lx)\n",
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 35, req);
zfcp_erp_unit_failed(unit, "fsouh_5", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
zfcp_erp_unit_shutdown(unit, 0, 80, req);
zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req);
} else if (!exclusive && readwrite) {
dev_err(&adapter->ccw_device->dev,
"Shared read-write access not "
@ -1921,9 +1902,9 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
"0x%016Lx)\n",
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_unit_failed(unit, 36, req);
zfcp_erp_unit_failed(unit, "fsouh_7", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
zfcp_erp_unit_shutdown(unit, 0, 81, req);
zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req);
}
}
break;
@ -1988,15 +1969,15 @@ static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req)
switch (req->qtcb->header.fsf_status) {
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(unit->port->adapter, 0, 110, req);
zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_LUN_HANDLE_NOT_VALID:
zfcp_erp_port_reopen(unit->port, 0, 111, req);
zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, 52, req);
zfcp_erp_port_boxed(unit->port, "fscuh_3", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
@ -2073,7 +2054,6 @@ static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req)
struct fsf_qual_latency_info *lat_inf;
struct latency_cont *lat;
struct zfcp_unit *unit = req->unit;
unsigned long flags;
lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info;
@ -2091,11 +2071,11 @@ static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req)
return;
}
spin_lock_irqsave(&unit->latencies.lock, flags);
spin_lock(&unit->latencies.lock);
zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat);
zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat);
lat->counter++;
spin_unlock_irqrestore(&unit->latencies.lock, flags);
spin_unlock(&unit->latencies.lock);
}
#ifdef CONFIG_BLK_DEV_IO_TRACE
@ -2147,7 +2127,6 @@ static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
set_host_byte(scpnt, DID_SOFT_ERROR);
set_driver_byte(scpnt, SUGGEST_RETRY);
goto skip_fsfstatus;
}
@ -2237,12 +2216,12 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req)
switch (header->fsf_status) {
case FSF_HANDLE_MISMATCH:
case FSF_PORT_HANDLE_NOT_VALID:
zfcp_erp_adapter_reopen(unit->port->adapter, 0, 112, req);
zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_FCPLUN_NOT_VALID:
case FSF_LUN_HANDLE_NOT_VALID:
zfcp_erp_port_reopen(unit->port, 0, 113, req);
zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
@ -2258,7 +2237,8 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req)
req->qtcb->bottom.io.data_direction,
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 133, req);
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3",
req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_CMND_LENGTH_NOT_VALID:
@ -2268,16 +2248,17 @@ static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req)
req->qtcb->bottom.io.fcp_cmnd_length,
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, 134, req);
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4",
req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(unit->port, 53, req);
zfcp_erp_port_boxed(unit->port, "fssfch5", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
case FSF_LUN_BOXED:
zfcp_erp_unit_boxed(unit, 54, req);
zfcp_erp_unit_boxed(unit, "fssfch6", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
@ -2314,30 +2295,29 @@ static void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl)
/**
* zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command)
* @adapter: adapter where scsi command is issued
* @unit: unit where command is sent to
* @scsi_cmnd: scsi command to be sent
* @timer: timer to be started when request is initiated
* @req_flags: flags for fsf_request
*/
int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter,
struct zfcp_unit *unit,
struct scsi_cmnd *scsi_cmnd,
int use_timer, int req_flags)
int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
struct scsi_cmnd *scsi_cmnd)
{
struct zfcp_fsf_req *req;
struct fcp_cmnd_iu *fcp_cmnd_iu;
unsigned int sbtype;
int real_bytes, retval = -EIO;
struct zfcp_adapter *adapter = unit->port->adapter;
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return -EBUSY;
spin_lock(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
if (atomic_read(&adapter->req_q.count) <= 0) {
atomic_inc(&adapter->qdio_outb_full);
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags,
}
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND,
ZFCP_REQ_AUTO_CLEANUP,
adapter->pool.fsf_req_scsi);
if (IS_ERR(req)) {
retval = PTR_ERR(req);
@ -2411,7 +2391,7 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter,
"on port 0x%016Lx closed\n",
(unsigned long long)unit->fcp_lun,
(unsigned long long)unit->port->wwpn);
zfcp_erp_unit_shutdown(unit, 0, 131, req);
zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req);
retval = -EINVAL;
}
goto failed_scsi_cmnd;
@ -2419,9 +2399,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter,
zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes);
if (use_timer)
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
retval = zfcp_fsf_req_send(req);
if (unlikely(retval))
goto failed_scsi_cmnd;
@ -2439,28 +2416,25 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter,
/**
* zfcp_fsf_send_fcp_ctm - send SCSI task management command
* @adapter: pointer to struct zfcp-adapter
* @unit: pointer to struct zfcp_unit
* @tm_flags: unsigned byte for task management flags
* @req_flags: int request flags
* Returns: on success pointer to struct fsf_req, NULL otherwise
*/
struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter,
struct zfcp_unit *unit,
u8 tm_flags, int req_flags)
struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
{
struct qdio_buffer_element *sbale;
struct zfcp_fsf_req *req = NULL;
struct fcp_cmnd_iu *fcp_cmnd_iu;
struct zfcp_adapter *adapter = unit->port->adapter;
if (unlikely(!(atomic_read(&unit->status) &
ZFCP_STATUS_COMMON_UNBLOCKED)))
return NULL;
spin_lock(&adapter->req_q_lock);
if (!zfcp_fsf_sbal_available(adapter))
spin_lock_bh(&adapter->req_q_lock);
if (zfcp_fsf_req_sbal_get(adapter))
goto out;
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags,
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 0,
adapter->pool.fsf_req_scsi);
if (IS_ERR(req)) {
req = NULL;
@ -2492,7 +2466,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter,
zfcp_fsf_req_free(req);
req = NULL;
out:
spin_unlock(&adapter->req_q_lock);
spin_unlock_bh(&adapter->req_q_lock);
return req;
}

4
drivers/s390/scsi/zfcp_fsf.h
View File

@ -127,10 +127,6 @@
#define FSF_STATUS_READ_CFDC_UPDATED 0x0000000A
#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C
/* status subtypes in status read buffer */
#define FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT 0x00000001
#define FSF_STATUS_READ_SUB_ERROR_PORT 0x00000002
/* status subtypes for link down */
#define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK 0x00000000
#define FSF_STATUS_READ_SUB_FDISC_FAILED 0x00000001

47
drivers/s390/scsi/zfcp_qdio.c
View File

@ -11,9 +11,6 @@
#include "zfcp_ext.h"
/* FIXME(tune): free space should be one max. SBAL chain plus what? */
#define ZFCP_QDIO_PCI_INTERVAL (QDIO_MAX_BUFFERS_PER_Q \
- (FSF_MAX_SBALS_PER_REQ + 4))
#define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer))
static int zfcp_qdio_buffers_enqueue(struct qdio_buffer **sbal)
@ -58,7 +55,7 @@ void zfcp_qdio_free(struct zfcp_adapter *adapter)
}
}
static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, u8 id)
static void zfcp_qdio_handler_error(struct zfcp_adapter *adapter, char *id)
{
dev_warn(&adapter->ccw_device->dev, "A QDIO problem occurred\n");
@ -77,6 +74,23 @@ static void zfcp_qdio_zero_sbals(struct qdio_buffer *sbal[], int first, int cnt)
}
}
/* this needs to be called prior to updating the queue fill level */
static void zfcp_qdio_account(struct zfcp_adapter *adapter)
{
ktime_t now;
s64 span;
int free, used;
spin_lock(&adapter->qdio_stat_lock);
now = ktime_get();
span = ktime_us_delta(now, adapter->req_q_time);
free = max(0, atomic_read(&adapter->req_q.count));
used = QDIO_MAX_BUFFERS_PER_Q - free;
adapter->req_q_util += used * span;
adapter->req_q_time = now;
spin_unlock(&adapter->qdio_stat_lock);
}
static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int qdio_err,
int queue_no, int first, int count,
unsigned long parm)
@ -86,13 +100,14 @@ static void zfcp_qdio_int_req(struct ccw_device *cdev, unsigned int qdio_err,
if (unlikely(qdio_err)) {
zfcp_hba_dbf_event_qdio(adapter, qdio_err, first, count);
zfcp_qdio_handler_error(adapter, 140);
zfcp_qdio_handler_error(adapter, "qdireq1");
return;
}
/* cleanup all SBALs being program-owned now */
zfcp_qdio_zero_sbals(queue->sbal, first, count);
zfcp_qdio_account(adapter);
atomic_add(count, &queue->count);
wake_up(&adapter->request_wq);
}
@ -154,7 +169,7 @@ static void zfcp_qdio_int_resp(struct ccw_device *cdev, unsigned int qdio_err,
if (unlikely(qdio_err)) {
zfcp_hba_dbf_event_qdio(adapter, qdio_err, first, count);
zfcp_qdio_handler_error(adapter, 147);
zfcp_qdio_handler_error(adapter, "qdires1");
return;
}
@ -346,21 +361,12 @@ int zfcp_qdio_send(struct zfcp_fsf_req *fsf_req)
struct zfcp_qdio_queue *req_q = &adapter->req_q;
int first = fsf_req->sbal_first;
int count = fsf_req->sbal_number;
int retval, pci, pci_batch;
struct qdio_buffer_element *sbale;
int retval;
unsigned int qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
/* acknowledgements for transferred buffers */
pci_batch = adapter->req_q_pci_batch + count;
if (unlikely(pci_batch >= ZFCP_QDIO_PCI_INTERVAL)) {
pci_batch %= ZFCP_QDIO_PCI_INTERVAL;
pci = first + count - (pci_batch + 1);
pci %= QDIO_MAX_BUFFERS_PER_Q;
sbale = zfcp_qdio_sbale(req_q, pci, 0);
sbale->flags |= SBAL_FLAGS0_PCI;
}
zfcp_qdio_account(adapter);
retval = do_QDIO(adapter->ccw_device, QDIO_FLAG_SYNC_OUTPUT, 0, first,
count);
retval = do_QDIO(adapter->ccw_device, qdio_flags, 0, first, count);
if (unlikely(retval)) {
zfcp_qdio_zero_sbals(req_q->sbal, first, count);
return retval;
@ -370,7 +376,6 @@ int zfcp_qdio_send(struct zfcp_fsf_req *fsf_req)
atomic_sub(count, &req_q->count);
req_q->first += count;
req_q->first %= QDIO_MAX_BUFFERS_PER_Q;
adapter->req_q_pci_batch = pci_batch;
return 0;
}
@ -441,7 +446,6 @@ void zfcp_qdio_close(struct zfcp_adapter *adapter)
}
req_q->first = 0;
atomic_set(&req_q->count, 0);
adapter->req_q_pci_batch = 0;
adapter->resp_q.first = 0;
atomic_set(&adapter->resp_q.count, 0);
}
@ -479,7 +483,6 @@ int zfcp_qdio_open(struct zfcp_adapter *adapter)
/* set index of first avalable SBALS / number of available SBALS */
adapter->req_q.first = 0;
atomic_set(&adapter->req_q.count, QDIO_MAX_BUFFERS_PER_Q);
adapter->req_q_pci_batch = 0;
return 0;

242
drivers/s390/scsi/zfcp_scsi.c
View File

@ -3,7 +3,7 @@
*
* Interface to Linux SCSI midlayer.
*
* Copyright IBM Corporation 2002, 2008
* Copyright IBM Corporation 2002, 2009
*/
#define KMSG_COMPONENT "zfcp"
@ -27,9 +27,7 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
{
struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
unit->device = NULL;
zfcp_erp_unit_failed(unit, 12, NULL);
zfcp_unit_put(unit);
}
@ -58,8 +56,8 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
{
struct zfcp_unit *unit;
struct zfcp_adapter *adapter;
int status;
int ret;
int status, scsi_result, ret;
struct fc_rport *rport = starget_to_rport(scsi_target(scpnt->device));
/* reset the status for this request */
scpnt->result = 0;
@ -81,6 +79,14 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
return 0;
}
scsi_result = fc_remote_port_chkready(rport);
if (unlikely(scsi_result)) {
scpnt->result = scsi_result;
zfcp_scsi_dbf_event_result("fail", 4, adapter, scpnt, NULL);
scpnt->scsi_done(scpnt);
return 0;
}
status = atomic_read(&unit->status);
if (unlikely((status & ZFCP_STATUS_COMMON_ERP_FAILED) ||
!(status & ZFCP_STATUS_COMMON_RUNNING))) {
@ -88,8 +94,7 @@ static int zfcp_scsi_queuecommand(struct scsi_cmnd *scpnt,
return 0;;
}
ret = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, 0,
ZFCP_REQ_AUTO_CLEANUP);
ret = zfcp_fsf_send_fcp_command_task(unit, scpnt);
if (unlikely(ret == -EBUSY))
return SCSI_MLQUEUE_DEVICE_BUSY;
else if (unlikely(ret < 0))
@ -133,8 +138,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdp)
read_lock_irqsave(&zfcp_data.config_lock, flags);
unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun);
if (unit &&
(atomic_read(&unit->status) & ZFCP_STATUS_UNIT_REGISTERED)) {
if (unit) {
sdp->hostdata = unit;
unit->device = sdp;
zfcp_unit_get(unit);
@ -147,79 +151,91 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdp)
static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
{
struct Scsi_Host *scsi_host;
struct zfcp_adapter *adapter;
struct zfcp_unit *unit;
struct zfcp_fsf_req *fsf_req;
struct Scsi_Host *scsi_host = scpnt->device->host;
struct zfcp_adapter *adapter =
(struct zfcp_adapter *) scsi_host->hostdata[0];
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_fsf_req *old_req, *abrt_req;
unsigned long flags;
unsigned long old_req_id = (unsigned long) scpnt->host_scribble;
int retval = SUCCESS;
scsi_host = scpnt->device->host;
adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
unit = scpnt->device->hostdata;
int retry = 3;
/* avoid race condition between late normal completion and abort */
write_lock_irqsave(&adapter->abort_lock, flags);
/* Check whether corresponding fsf_req is still pending */
spin_lock(&adapter->req_list_lock);
fsf_req = zfcp_reqlist_find(adapter, old_req_id);
old_req = zfcp_reqlist_find(adapter, old_req_id);
spin_unlock(&adapter->req_list_lock);
if (!fsf_req) {
if (!old_req) {
write_unlock_irqrestore(&adapter->abort_lock, flags);
zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL, 0);
return retval;
zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL,
old_req_id);
return SUCCESS;
}
fsf_req->data = NULL;
old_req->data = NULL;
/* don't access old fsf_req after releasing the abort_lock */
write_unlock_irqrestore(&adapter->abort_lock, flags);
fsf_req = zfcp_fsf_abort_fcp_command(old_req_id, adapter, unit, 0);
if (!fsf_req) {
while (retry--) {
abrt_req = zfcp_fsf_abort_fcp_command(old_req_id, unit);
if (abrt_req)
break;
zfcp_erp_wait(adapter);
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL,
old_req_id);
retval = FAILED;
return retval;
return SUCCESS;
}
}
if (!abrt_req)
return FAILED;
__wait_event(fsf_req->completion_wq,
fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
wait_event(abrt_req->completion_wq,
abrt_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
if (fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED) {
zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, fsf_req, 0);
} else if (fsf_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED) {
zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, fsf_req, 0);
} else {
zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, fsf_req, 0);
if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED)
zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, abrt_req, 0);
else if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED)
zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, abrt_req, 0);
else {
zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, abrt_req, 0);
retval = FAILED;
}
zfcp_fsf_req_free(fsf_req);
zfcp_fsf_req_free(abrt_req);
return retval;
}
static int zfcp_task_mgmt_function(struct zfcp_unit *unit, u8 tm_flags,
struct scsi_cmnd *scpnt)
static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
{
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_adapter *adapter = unit->port->adapter;
struct zfcp_fsf_req *fsf_req;
int retval = SUCCESS;
int retry = 3;
/* issue task management function */
fsf_req = zfcp_fsf_send_fcp_ctm(adapter, unit, tm_flags, 0);
if (!fsf_req) {
zfcp_scsi_dbf_event_devreset("nres", tm_flags, unit, scpnt);
return FAILED;
while (retry--) {
fsf_req = zfcp_fsf_send_fcp_ctm(unit, tm_flags);
if (fsf_req)
break;
zfcp_erp_wait(adapter);
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_scsi_dbf_event_devreset("nres", tm_flags, unit,
scpnt);
return SUCCESS;
}
}
if (!fsf_req)
return FAILED;
__wait_event(fsf_req->completion_wq,
wait_event(fsf_req->completion_wq,
fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
/*
* check completion status of task management function
*/
if (fsf_req->status & ZFCP_STATUS_FSFREQ_TMFUNCFAILED) {
zfcp_scsi_dbf_event_devreset("fail", tm_flags, unit, scpnt);
retval = FAILED;
@ -230,40 +246,25 @@ static int zfcp_task_mgmt_function(struct zfcp_unit *unit, u8 tm_flags,
zfcp_scsi_dbf_event_devreset("okay", tm_flags, unit, scpnt);
zfcp_fsf_req_free(fsf_req);
return retval;
}
static int zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
{
struct zfcp_unit *unit = scpnt->device->hostdata;
if (!unit) {
WARN_ON(1);
return SUCCESS;
}
return zfcp_task_mgmt_function(unit, FCP_LOGICAL_UNIT_RESET, scpnt);
return zfcp_task_mgmt_function(scpnt, FCP_LOGICAL_UNIT_RESET);
}
static int zfcp_scsi_eh_target_reset_handler(struct scsi_cmnd *scpnt)
{
struct zfcp_unit *unit = scpnt->device->hostdata;
if (!unit) {
WARN_ON(1);
return SUCCESS;
}
return zfcp_task_mgmt_function(unit, FCP_TARGET_RESET, scpnt);
return zfcp_task_mgmt_function(scpnt, FCP_TARGET_RESET);
}
static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
{
struct zfcp_unit *unit;
struct zfcp_adapter *adapter;
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_adapter *adapter = unit->port->adapter;
unit = scpnt->device->hostdata;
adapter = unit->port->adapter;
zfcp_erp_adapter_reopen(adapter, 0, 141, scpnt);
zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt);
zfcp_erp_wait(adapter);
return SUCCESS;
@ -479,6 +480,109 @@ static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
rport->dev_loss_tmo = timeout;
}
/**
* zfcp_scsi_dev_loss_tmo_callbk - Free any reference to rport
* @rport: The rport that is about to be deleted.
*/
static void zfcp_scsi_dev_loss_tmo_callbk(struct fc_rport *rport)
{
struct zfcp_port *port = rport->dd_data;
write_lock_irq(&zfcp_data.config_lock);
port->rport = NULL;
write_unlock_irq(&zfcp_data.config_lock);
}
/**
* zfcp_scsi_terminate_rport_io - Terminate all I/O on a rport
* @rport: The FC rport where to teminate I/O
*
* Abort all pending SCSI commands for a port by closing the
* port. Using a reopen for avoids a conflict with a shutdown
* overwriting a reopen.
*/
static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport)
{
struct zfcp_port *port = rport->dd_data;
zfcp_erp_port_reopen(port, 0, "sctrpi1", NULL);
}
static void zfcp_scsi_rport_register(struct zfcp_port *port)
{
struct fc_rport_identifiers ids;
struct fc_rport *rport;
ids.node_name = port->wwnn;
ids.port_name = port->wwpn;
ids.port_id = port->d_id;
ids.roles = FC_RPORT_ROLE_FCP_TARGET;
rport = fc_remote_port_add(port->adapter->scsi_host, 0, &ids);
if (!rport) {
dev_err(&port->adapter->ccw_device->dev,
"Registering port 0x%016Lx failed\n",
(unsigned long long)port->wwpn);
return;
}
rport->dd_data = port;
rport->maxframe_size = port->maxframe_size;
rport->supported_classes = port->supported_classes;
port->rport = rport;
}
static void zfcp_scsi_rport_block(struct zfcp_port *port)
{
if (port->rport)
fc_remote_port_delete(port->rport);
}
void zfcp_scsi_schedule_rport_register(struct zfcp_port *port)
{
zfcp_port_get(port);
port->rport_task = RPORT_ADD;
if (!queue_work(zfcp_data.work_queue, &port->rport_work))
zfcp_port_put(port);
}
void zfcp_scsi_schedule_rport_block(struct zfcp_port *port)
{
zfcp_port_get(port);
port->rport_task = RPORT_DEL;
if (!queue_work(zfcp_data.work_queue, &port->rport_work))
zfcp_port_put(port);
}
void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *adapter)
{
struct zfcp_port *port;
list_for_each_entry(port, &adapter->port_list_head, list)
zfcp_scsi_schedule_rport_block(port);
}
void zfcp_scsi_rport_work(struct work_struct *work)
{
struct zfcp_port *port = container_of(work, struct zfcp_port,
rport_work);
while (port->rport_task) {
if (port->rport_task == RPORT_ADD) {
port->rport_task = RPORT_NONE;
zfcp_scsi_rport_register(port);
} else {
port->rport_task = RPORT_NONE;
zfcp_scsi_rport_block(port);
}
}
zfcp_port_put(port);
}
struct fc_function_template zfcp_transport_functions = {
.show_starget_port_id = 1,
.show_starget_port_name = 1,
@ -497,6 +601,8 @@ struct fc_function_template zfcp_transport_functions = {
.reset_fc_host_stats = zfcp_reset_fc_host_stats,
.set_rport_dev_loss_tmo = zfcp_set_rport_dev_loss_tmo,
.get_host_port_state = zfcp_get_host_port_state,
.dev_loss_tmo_callbk = zfcp_scsi_dev_loss_tmo_callbk,
.terminate_rport_io = zfcp_scsi_terminate_rport_io,
.show_host_port_state = 1,
/* no functions registered for following dynamic attributes but
directly set by LLDD */

20
drivers/s390/scsi/zfcp_sysfs.c
View File

@ -112,9 +112,9 @@ static ZFCP_DEV_ATTR(_feat, failed, S_IWUSR | S_IRUGO, \
zfcp_sysfs_##_feat##_failed_show, \
zfcp_sysfs_##_feat##_failed_store);
ZFCP_SYSFS_FAILED(zfcp_adapter, adapter, adapter, 44, 93);
ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, 45, 96);
ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, 46, 97);
ZFCP_SYSFS_FAILED(zfcp_adapter, adapter, adapter, "syafai1", "syafai2");
ZFCP_SYSFS_FAILED(zfcp_port, port, port->adapter, "sypfai1", "sypfai2");
ZFCP_SYSFS_FAILED(zfcp_unit, unit, unit->port->adapter, "syufai1", "syufai2");
static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
struct device_attribute *attr,
@ -168,7 +168,7 @@ static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
goto out;
}
zfcp_erp_port_shutdown(port, 0, 92, NULL);
zfcp_erp_port_shutdown(port, 0, "syprs_1", NULL);
zfcp_erp_wait(adapter);
zfcp_port_put(port);
zfcp_port_dequeue(port);
@ -222,7 +222,7 @@ static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
retval = 0;
zfcp_erp_unit_reopen(unit, 0, 94, NULL);
zfcp_erp_unit_reopen(unit, 0, "syuas_1", NULL);
zfcp_erp_wait(unit->port->adapter);
zfcp_unit_put(unit);
out:
@ -268,7 +268,7 @@ static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
goto out;
}
zfcp_erp_unit_shutdown(unit, 0, 95, NULL);
zfcp_erp_unit_shutdown(unit, 0, "syurs_1", NULL);
zfcp_erp_wait(unit->port->adapter);
zfcp_unit_put(unit);
zfcp_unit_dequeue(unit);
@ -318,10 +318,9 @@ zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \
struct zfcp_unit *unit = sdev->hostdata; \
struct zfcp_latencies *lat = &unit->latencies; \
struct zfcp_adapter *adapter = unit->port->adapter; \
unsigned long flags; \
unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \
\
spin_lock_irqsave(&lat->lock, flags); \
spin_lock_bh(&lat->lock); \
fsum = lat->_name.fabric.sum * adapter->timer_ticks; \
fmin = lat->_name.fabric.min * adapter->timer_ticks; \
fmax = lat->_name.fabric.max * adapter->timer_ticks; \
@ -329,7 +328,7 @@ zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \
cmin = lat->_name.channel.min * adapter->timer_ticks; \
cmax = lat->_name.channel.max * adapter->timer_ticks; \
cc = lat->_name.counter; \
spin_unlock_irqrestore(&lat->lock, flags); \
spin_unlock_bh(&lat->lock); \
\
do_div(fsum, 1000); \
do_div(fmin, 1000); \
@ -487,7 +486,8 @@ static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
struct zfcp_adapter *adapter =
(struct zfcp_adapter *) scsi_host->hostdata[0];
return sprintf(buf, "%d\n", atomic_read(&adapter->qdio_outb_full));
return sprintf(buf, "%d %llu\n", atomic_read(&adapter->qdio_outb_full),
(unsigned long long)adapter->req_q_util);
}
static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);

101
drivers/scsi/3w-9xxx.c
View File

@ -4,7 +4,7 @@
Written By: Adam Radford <linuxraid@amcc.com>
Modifications By: Tom Couch <linuxraid@amcc.com>
Copyright (C) 2004-2008 Applied Micro Circuits Corporation.
Copyright (C) 2004-2009 Applied Micro Circuits Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -75,6 +75,7 @@
Add MSI support and "use_msi" module parameter.
Fix bug in twa_get_param() on 4GB+.
Use pci_resource_len() for ioremap().
2.26.02.012 - Add power management support.
*/
#include <linux/module.h>
@ -99,7 +100,7 @@
#include "3w-9xxx.h"
/* Globals */
#define TW_DRIVER_VERSION "2.26.02.011"
#define TW_DRIVER_VERSION "2.26.02.012"
static TW_Device_Extension *twa_device_extension_list[TW_MAX_SLOT];
static unsigned int twa_device_extension_count;
static int twa_major = -1;
@ -2182,6 +2183,98 @@ static void twa_remove(struct pci_dev *pdev)
twa_device_extension_count--;
} /* End twa_remove() */
#ifdef CONFIG_PM
/* This function is called on PCI suspend */
static int twa_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
printk(KERN_WARNING "3w-9xxx: Suspending host %d.\n", tw_dev->host->host_no);
TW_DISABLE_INTERRUPTS(tw_dev);
free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
if (test_bit(TW_USING_MSI, &tw_dev->flags))
pci_disable_msi(pdev);
/* Tell the card we are shutting down */
if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x38, "Connection shutdown failed during suspend");
} else {
printk(KERN_WARNING "3w-9xxx: Suspend complete.\n");
}
TW_CLEAR_ALL_INTERRUPTS(tw_dev);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
} /* End twa_suspend() */
/* This function is called on PCI resume */
static int twa_resume(struct pci_dev *pdev)
{
int retval = 0;
struct Scsi_Host *host = pci_get_drvdata(pdev);
TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
printk(KERN_WARNING "3w-9xxx: Resuming host %d.\n", tw_dev->host->host_no);
pci_set_power_state(pdev, PCI_D0);
pci_enable_wake(pdev, PCI_D0, 0);
pci_restore_state(pdev);
retval = pci_enable_device(pdev);
if (retval) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x39, "Enable device failed during resume");
return retval;
}
pci_set_master(pdev);
pci_try_set_mwi(pdev);
if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)
|| pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)
|| pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)) {
TW_PRINTK(host, TW_DRIVER, 0x40, "Failed to set dma mask during resume");
retval = -ENODEV;
goto out_disable_device;
}
/* Initialize the card */
if (twa_reset_sequence(tw_dev, 0)) {
retval = -ENODEV;
goto out_disable_device;
}
/* Now setup the interrupt handler */
retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev);
if (retval) {
TW_PRINTK(tw_dev->host, TW_DRIVER, 0x42, "Error requesting IRQ during resume");
retval = -ENODEV;
goto out_disable_device;
}
/* Now enable MSI if enabled */
if (test_bit(TW_USING_MSI, &tw_dev->flags))
pci_enable_msi(pdev);
/* Re-enable interrupts on the card */
TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
printk(KERN_WARNING "3w-9xxx: Resume complete.\n");
return 0;
out_disable_device:
scsi_remove_host(host);
pci_disable_device(pdev);
return retval;
} /* End twa_resume() */
#endif
/* PCI Devices supported by this driver */
static struct pci_device_id twa_pci_tbl[] __devinitdata = {
{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000,
@ -2202,6 +2295,10 @@ static struct pci_driver twa_driver = {
.id_table = twa_pci_tbl,
.probe = twa_probe,
.remove = twa_remove,
#ifdef CONFIG_PM
.suspend = twa_suspend,
.resume = twa_resume,
#endif
.shutdown = twa_shutdown
};

2
drivers/scsi/3w-9xxx.h
View File

@ -4,7 +4,7 @@
Written By: Adam Radford <linuxraid@amcc.com>
Modifications By: Tom Couch <linuxraid@amcc.com>
Copyright (C) 2004-2008 Applied Micro Circuits Corporation.
Copyright (C) 2004-2009 Applied Micro Circuits Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by

18
drivers/scsi/Kconfig
View File

@ -224,14 +224,15 @@ config SCSI_LOGGING
can enable logging by saying Y to "/proc file system support" and
"Sysctl support" below and executing the command
echo "scsi log token [level]" > /proc/scsi/scsi
echo <bitmask> > /proc/sys/dev/scsi/logging_level
at boot time after the /proc file system has been mounted.
where <bitmask> is a four byte value representing the logging type
and logging level for each type of logging selected.
There are a number of things that can be used for 'token' (you can
find them in the source: <file:drivers/scsi/scsi.c>), and this
allows you to select the types of information you want, and the
level allows you to select the level of verbosity.
There are a number of logging types and you can find them in the
source at <file:drivers/scsi/scsi_logging.h>. The logging levels
are also described in that file and they determine the verbosity of
the logging for each logging type.
If you say N here, it may be harder to track down some types of SCSI
problems. If you say Y here your kernel will be somewhat larger, but
@ -570,6 +571,7 @@ config SCSI_ARCMSR_AER
To enable this function, choose Y here.
source "drivers/scsi/megaraid/Kconfig.megaraid"
source "drivers/scsi/mpt2sas/Kconfig"
config SCSI_HPTIOP
tristate "HighPoint RocketRAID 3xxx/4xxx Controller support"
@ -608,6 +610,7 @@ config SCSI_FLASHPOINT
config LIBFC
tristate "LibFC module"
select SCSI_FC_ATTRS
select CRC32
---help---
Fibre Channel library module
@ -1535,6 +1538,7 @@ config SCSI_NSP32
config SCSI_DEBUG
tristate "SCSI debugging host simulator"
depends on SCSI
select CRC_T10DIF
help
This is a host adapter simulator that can simulate multiple hosts
each with multiple dummy SCSI devices (disks). It defaults to one
@ -1803,4 +1807,6 @@ source "drivers/scsi/pcmcia/Kconfig"
source "drivers/scsi/device_handler/Kconfig"
source "drivers/scsi/osd/Kconfig"
endmenu

3
drivers/scsi/Makefile
View File

@ -99,6 +99,7 @@ obj-$(CONFIG_SCSI_DC390T) += tmscsim.o
obj-$(CONFIG_MEGARAID_LEGACY) += megaraid.o
obj-$(CONFIG_MEGARAID_NEWGEN) += megaraid/
obj-$(CONFIG_MEGARAID_SAS) += megaraid/
obj-$(CONFIG_SCSI_MPT2SAS) += mpt2sas/
obj-$(CONFIG_SCSI_ACARD) += atp870u.o
obj-$(CONFIG_SCSI_SUNESP) += esp_scsi.o sun_esp.o
obj-$(CONFIG_SCSI_GDTH) += gdth.o
@ -137,6 +138,8 @@ obj-$(CONFIG_CHR_DEV_SG) += sg.o
obj-$(CONFIG_CHR_DEV_SCH) += ch.o
obj-$(CONFIG_SCSI_ENCLOSURE) += ses.o
obj-$(CONFIG_SCSI_OSD_INITIATOR) += osd/
# This goes last, so that "real" scsi devices probe earlier
obj-$(CONFIG_SCSI_DEBUG) += scsi_debug.o

1
drivers/scsi/ch.c
View File

@ -41,6 +41,7 @@ MODULE_DESCRIPTION("device driver for scsi media changer devices");
MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org>");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CHARDEV_MAJOR(SCSI_CHANGER_MAJOR);
MODULE_ALIAS_SCSI_DEVICE(TYPE_MEDIUM_CHANGER);
static int init = 1;
module_param(init, int, 0444);

13
drivers/scsi/constants.c
View File

@ -1373,21 +1373,14 @@ static const char * const driverbyte_table[]={
"DRIVER_INVALID", "DRIVER_TIMEOUT", "DRIVER_HARD", "DRIVER_SENSE"};
#define NUM_DRIVERBYTE_STRS ARRAY_SIZE(driverbyte_table)
static const char * const driversuggest_table[]={"SUGGEST_OK",
"SUGGEST_RETRY", "SUGGEST_ABORT", "SUGGEST_REMAP", "SUGGEST_DIE",
"SUGGEST_5", "SUGGEST_6", "SUGGEST_7", "SUGGEST_SENSE"};
#define NUM_SUGGEST_STRS ARRAY_SIZE(driversuggest_table)
void scsi_show_result(int result)
{
int hb = host_byte(result);
int db = (driver_byte(result) & DRIVER_MASK);
int su = ((driver_byte(result) & SUGGEST_MASK) >> 4);
int db = driver_byte(result);
printk("Result: hostbyte=%s driverbyte=%s,%s\n",
printk("Result: hostbyte=%s driverbyte=%s\n",
(hb < NUM_HOSTBYTE_STRS ? hostbyte_table[hb] : "invalid"),
(db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"),
(su < NUM_SUGGEST_STRS ? driversuggest_table[su] : "invalid"));
(db < NUM_DRIVERBYTE_STRS ? driverbyte_table[db] : "invalid"));
}
#else

5
drivers/scsi/cxgb3i/cxgb3i_ddp.c
View File

@ -196,7 +196,7 @@ static inline int ddp_alloc_gl_skb(struct cxgb3i_ddp_info *ddp, int idx,
}
/**
* cxgb3i_ddp_find_page_index - return ddp page index for a given page size.
* cxgb3i_ddp_find_page_index - return ddp page index for a given page size
* @pgsz: page size
* return the ddp page index, if no match is found return DDP_PGIDX_MAX.
*/
@ -355,8 +355,7 @@ EXPORT_SYMBOL_GPL(cxgb3i_ddp_release_gl);
* @tdev: t3cdev adapter
* @tid: connection id
* @tformat: tag format
* @tagp: the s/w tag, if ddp setup is successful, it will be updated with
* ddp/hw tag
* @tagp: contains s/w tag initially, will be updated with ddp/hw tag
* @gl: the page momory list
* @gfp: allocation mode
*

8
drivers/scsi/cxgb3i/cxgb3i_ddp.h
View File

@ -185,12 +185,11 @@ static inline int cxgb3i_is_ddp_tag(struct cxgb3i_tag_format *tformat, u32 tag)
}
/**
* cxgb3i_sw_tag_usable - check if a given s/w tag has enough bits left for
* the reserved/hw bits
* cxgb3i_sw_tag_usable - check if s/w tag has enough bits left for hw bits
* @tformat: tag format information
* @sw_tag: s/w tag to be checked
*
* return true if the tag is a ddp tag, false otherwise.
* return true if the tag can be used for hw ddp tag, false otherwise.
*/
static inline int cxgb3i_sw_tag_usable(struct cxgb3i_tag_format *tformat,
u32 sw_tag)
@ -222,8 +221,7 @@ static inline u32 cxgb3i_set_non_ddp_tag(struct cxgb3i_tag_format *tformat,
}
/**
* cxgb3i_ddp_tag_base - shift the s/w tag bits so that reserved bits are not
* used.
* cxgb3i_ddp_tag_base - shift s/w tag bits so that reserved bits are not used
* @tformat: tag format information
* @sw_tag: s/w tag to be checked
*/

27
drivers/scsi/cxgb3i/cxgb3i_iscsi.c
View File

@ -101,8 +101,7 @@ struct cxgb3i_adapter *cxgb3i_adapter_add(struct t3cdev *t3dev)
}
/**
* cxgb3i_adapter_remove - release all the resources held and cleanup any
* h/w settings
* cxgb3i_adapter_remove - release the resources held and cleanup h/w settings
* @t3dev: t3cdev adapter
*/
void cxgb3i_adapter_remove(struct t3cdev *t3dev)
@ -135,8 +134,7 @@ void cxgb3i_adapter_remove(struct t3cdev *t3dev)
}
/**
* cxgb3i_hba_find_by_netdev - find the cxgb3i_hba structure with a given
* net_device
* cxgb3i_hba_find_by_netdev - find the cxgb3i_hba structure via net_device
* @t3dev: t3cdev adapter
*/
struct cxgb3i_hba *cxgb3i_hba_find_by_netdev(struct net_device *ndev)
@ -170,8 +168,7 @@ struct cxgb3i_hba *cxgb3i_hba_host_add(struct cxgb3i_adapter *snic,
int err;
shost = iscsi_host_alloc(&cxgb3i_host_template,
sizeof(struct cxgb3i_hba),
CXGB3I_SCSI_QDEPTH_DFLT);
sizeof(struct cxgb3i_hba), 1);
if (!shost) {
cxgb3i_log_info("iscsi_host_alloc failed.\n");
return NULL;
@ -335,13 +332,12 @@ static void cxgb3i_ep_disconnect(struct iscsi_endpoint *ep)
* @cmds_max: max # of commands
* @qdepth: scsi queue depth
* @initial_cmdsn: initial iscsi CMDSN for this session
* @host_no: pointer to return host no
*
* Creates a new iSCSI session
*/
static struct iscsi_cls_session *
cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth,
u32 initial_cmdsn, u32 *host_no)
u32 initial_cmdsn)
{
struct cxgb3i_endpoint *cep;
struct cxgb3i_hba *hba;
@ -360,8 +356,6 @@ cxgb3i_session_create(struct iscsi_endpoint *ep, u16 cmds_max, u16 qdepth,
cxgb3i_api_debug("ep 0x%p, cep 0x%p, hba 0x%p.\n", ep, cep, hba);
BUG_ON(hba != iscsi_host_priv(shost));
*host_no = shost->host_no;
cls_session = iscsi_session_setup(&cxgb3i_iscsi_transport, shost,
cmds_max,
sizeof(struct iscsi_tcp_task) +
@ -394,9 +388,9 @@ static void cxgb3i_session_destroy(struct iscsi_cls_session *cls_session)
}
/**
* cxgb3i_conn_max_xmit_dlength -- check the max. xmit pdu segment size,
* reduce it to be within the hardware limit if needed
* cxgb3i_conn_max_xmit_dlength -- calc the max. xmit pdu segment size
* @conn: iscsi connection
* check the max. xmit pdu payload, reduce it if needed
*/
static inline int cxgb3i_conn_max_xmit_dlength(struct iscsi_conn *conn)
@ -417,8 +411,7 @@ static inline int cxgb3i_conn_max_xmit_dlength(struct iscsi_conn *conn)
}
/**
* cxgb3i_conn_max_recv_dlength -- check the max. recv pdu segment size against
* the hardware limit
* cxgb3i_conn_max_recv_dlength -- check the max. recv pdu segment size
* @conn: iscsi connection
* return 0 if the value is valid, < 0 otherwise.
*/
@ -759,9 +752,9 @@ static void cxgb3i_parse_itt(struct iscsi_conn *conn, itt_t itt,
/**
* cxgb3i_reserve_itt - generate tag for a give task
* Try to set up ddp for a scsi read task.
* @task: iscsi task
* @hdr_itt: tag, filled in by this function
* Set up ddp for scsi read tasks if possible.
*/
int cxgb3i_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt)
{
@ -809,9 +802,9 @@ int cxgb3i_reserve_itt(struct iscsi_task *task, itt_t *hdr_itt)
/**
* cxgb3i_release_itt - release the tag for a given task
* if the tag is a ddp tag, release the ddp setup
* @task: iscsi task
* @hdr_itt: tag
* If the tag is a ddp tag, release the ddp setup
*/
void cxgb3i_release_itt(struct iscsi_task *task, itt_t hdr_itt)
{
@ -843,7 +836,7 @@ static struct scsi_host_template cxgb3i_host_template = {
.can_queue = CXGB3I_SCSI_QDEPTH_DFLT - 1,
.sg_tablesize = SG_ALL,
.max_sectors = 0xFFFF,
.cmd_per_lun = ISCSI_DEF_CMD_PER_LUN,
.cmd_per_lun = CXGB3I_SCSI_QDEPTH_DFLT,
.eh_abort_handler = iscsi_eh_abort,
.eh_device_reset_handler = iscsi_eh_device_reset,
.eh_target_reset_handler = iscsi_eh_target_reset,

3
drivers/scsi/cxgb3i/cxgb3i_offload.c
View File

@ -1417,8 +1417,7 @@ static void c3cn_active_close(struct s3_conn *c3cn)
}
/**
* cxgb3i_c3cn_release - close and release an iscsi tcp connection and any
* resource held
* cxgb3i_c3cn_release - close and release an iscsi tcp connection
* @c3cn: the iscsi tcp connection
*/
void cxgb3i_c3cn_release(struct s3_conn *c3cn)

1
drivers/scsi/cxgb3i/cxgb3i_offload.h
View File

@ -139,6 +139,7 @@ enum c3cn_flags {
/**
* cxgb3i_sdev_data - Per adapter data.
*
* Linked off of each Ethernet device port on the adapter.
* Also available via the t3cdev structure since we have pointers to our port
* net_device's there ...

2
drivers/scsi/cxgb3i/cxgb3i_pdu.c
View File

@ -479,7 +479,7 @@ void cxgb3i_conn_tx_open(struct s3_conn *c3cn)
cxgb3i_tx_debug("cn 0x%p.\n", c3cn);
if (conn) {
cxgb3i_tx_debug("cn 0x%p, cid %d.\n", c3cn, conn->id);
scsi_queue_work(conn->session->host, &conn->xmitwork);
iscsi_conn_queue_work(conn);
}
}

14
drivers/scsi/device_handler/scsi_dh_alua.c
View File

@ -247,8 +247,8 @@ static unsigned submit_stpg(struct scsi_device *sdev, struct alua_dh_data *h)
/* Prepare the data buffer */
memset(h->buff, 0, stpg_len);
h->buff[4] = TPGS_STATE_OPTIMIZED & 0x0f;
h->buff[6] = (h->group_id >> 8) & 0x0f;
h->buff[7] = h->group_id & 0x0f;
h->buff[6] = (h->group_id >> 8) & 0xff;
h->buff[7] = h->group_id & 0xff;
rq = get_alua_req(sdev, h->buff, stpg_len, WRITE);
if (!rq)
@ -461,6 +461,15 @@ static int alua_check_sense(struct scsi_device *sdev,
*/
return ADD_TO_MLQUEUE;
}
if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x0e) {
/*
* REPORTED_LUNS_DATA_HAS_CHANGED is reported
* when switching controllers on targets like
* Intel Multi-Flex. We can just retry.
*/
return ADD_TO_MLQUEUE;
}
break;
}
@ -691,6 +700,7 @@ static const struct scsi_dh_devlist alua_dev_list[] = {
{"IBM", "2107900" },
{"IBM", "2145" },
{"Pillar", "Axiom" },
{"Intel", "Multi-Flex"},
{NULL, NULL}
};

47
drivers/scsi/device_handler/scsi_dh_rdac.c
View File

@ -449,28 +449,40 @@ static int mode_select_handle_sense(struct scsi_device *sdev,
unsigned char *sensebuf)
{
struct scsi_sense_hdr sense_hdr;
int sense, err = SCSI_DH_IO, ret;
int err = SCSI_DH_IO, ret;
ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr);
if (!ret)
goto done;
err = SCSI_DH_OK;
sense = (sense_hdr.sense_key << 16) | (sense_hdr.asc << 8) |
sense_hdr.ascq;
/* If it is retryable failure, submit the c9 inquiry again */
if (sense == 0x59136 || sense == 0x68b02 || sense == 0xb8b02 ||
sense == 0x62900) {
/* 0x59136 - Command lock contention
* 0x[6b]8b02 - Quiesense in progress or achieved
* 0x62900 - Power On, Reset, or Bus Device Reset
switch (sense_hdr.sense_key) {
case NO_SENSE:
case ABORTED_COMMAND:
case UNIT_ATTENTION:
err = SCSI_DH_RETRY;
break;
case NOT_READY:
if (sense_hdr.asc == 0x04 && sense_hdr.ascq == 0x01)
/* LUN Not Ready and is in the Process of Becoming
* Ready
*/
err = SCSI_DH_RETRY;
break;
case ILLEGAL_REQUEST:
if (sense_hdr.asc == 0x91 && sense_hdr.ascq == 0x36)
/*
* Command Lock contention
*/
err = SCSI_DH_RETRY;
break;
default:
sdev_printk(KERN_INFO, sdev,
"MODE_SELECT failed with sense %02x/%02x/%02x.\n",
sense_hdr.sense_key, sense_hdr.asc, sense_hdr.ascq);
}
if (sense)
sdev_printk(KERN_INFO, sdev,
"MODE_SELECT failed with sense 0x%x.\n", sense);
done:
return err;
}
@ -562,6 +574,12 @@ static int rdac_check_sense(struct scsi_device *sdev,
* Just retry and wait.
*/
return ADD_TO_MLQUEUE;
if (sense_hdr->asc == 0xA1 && sense_hdr->ascq == 0x02)
/* LUN Not Ready - Quiescense in progress
* or has been achieved
* Just retry.
*/
return ADD_TO_MLQUEUE;
break;
case ILLEGAL_REQUEST:
if (sense_hdr->asc == 0x94 && sense_hdr->ascq == 0x01) {
@ -579,6 +597,11 @@ static int rdac_check_sense(struct scsi_device *sdev,
* Power On, Reset, or Bus Device Reset, just retry.
*/
return ADD_TO_MLQUEUE;
if (sense_hdr->asc == 0x8b && sense_hdr->ascq == 0x02)
/*
* Quiescence in progress , just retry.
*/
return ADD_TO_MLQUEUE;
break;
}
/* success just means we do not care what scsi-ml does */

67
drivers/scsi/fcoe/fcoe_sw.c
View File

@ -133,6 +133,13 @@ static int fcoe_sw_lport_config(struct fc_lport *lp)
/* lport fc_lport related configuration */
fc_lport_config(lp);
/* offload related configuration */
lp->crc_offload = 0;
lp->seq_offload = 0;
lp->lro_enabled = 0;
lp->lro_xid = 0;
lp->lso_max = 0;
return 0;
}
@ -186,7 +193,27 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
if (fc->real_dev->features & NETIF_F_SG)
lp->sg_supp = 1;
#ifdef NETIF_F_FCOE_CRC
if (netdev->features & NETIF_F_FCOE_CRC) {
lp->crc_offload = 1;
printk(KERN_DEBUG "fcoe:%s supports FCCRC offload\n",
netdev->name);
}
#endif
#ifdef NETIF_F_FSO
if (netdev->features & NETIF_F_FSO) {
lp->seq_offload = 1;
lp->lso_max = netdev->gso_max_size;
printk(KERN_DEBUG "fcoe:%s supports LSO for max len 0x%x\n",
netdev->name, lp->lso_max);
}
#endif
if (netdev->fcoe_ddp_xid) {
lp->lro_enabled = 1;
lp->lro_xid = netdev->fcoe_ddp_xid;
printk(KERN_DEBUG "fcoe:%s supports LRO for max xid 0x%x\n",
netdev->name, lp->lro_xid);
}
skb_queue_head_init(&fc->fcoe_pending_queue);
fc->fcoe_pending_queue_active = 0;
@ -346,8 +373,46 @@ static int fcoe_sw_destroy(struct net_device *netdev)
return 0;
}
/*
* fcoe_sw_ddp_setup - calls LLD's ddp_setup through net_device
* @lp: the corresponding fc_lport
* @xid: the exchange id for this ddp transfer
* @sgl: the scatterlist describing this transfer
* @sgc: number of sg items
*
* Returns : 0 no ddp
*/
static int fcoe_sw_ddp_setup(struct fc_lport *lp, u16 xid,
struct scatterlist *sgl, unsigned int sgc)
{
struct net_device *n = fcoe_netdev(lp);
if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_setup)
return n->netdev_ops->ndo_fcoe_ddp_setup(n, xid, sgl, sgc);
return 0;
}
/*
* fcoe_sw_ddp_done - calls LLD's ddp_done through net_device
* @lp: the corresponding fc_lport
* @xid: the exchange id for this ddp transfer
*
* Returns : the length of data that have been completed by ddp
*/
static int fcoe_sw_ddp_done(struct fc_lport *lp, u16 xid)
{
struct net_device *n = fcoe_netdev(lp);
if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_done)
return n->netdev_ops->ndo_fcoe_ddp_done(n, xid);
return 0;
}
static struct libfc_function_template fcoe_sw_libfc_fcn_templ = {
.frame_send = fcoe_xmit,
.ddp_setup = fcoe_sw_ddp_setup,
.ddp_done = fcoe_sw_ddp_done,
};
/**

16
drivers/scsi/fcoe/libfcoe.c
View File

@ -423,7 +423,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
/* crc offload */
if (likely(lp->crc_offload)) {
skb->ip_summed = CHECKSUM_COMPLETE;
skb->ip_summed = CHECKSUM_PARTIAL;
skb->csum_start = skb_headroom(skb);
skb->csum_offset = skb->len;
crc = 0;
@ -460,7 +460,7 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb->mac_len = elen;
skb->protocol = htons(ETH_P_802_3);
skb->protocol = htons(ETH_P_FCOE);
skb->dev = fc->real_dev;
/* fill up mac and fcoe headers */
@ -483,6 +483,16 @@ int fcoe_xmit(struct fc_lport *lp, struct fc_frame *fp)
FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
hp->fcoe_sof = sof;
#ifdef NETIF_F_FSO
/* fcoe lso, mss is in max_payload which is non-zero for FCP data */
if (lp->seq_offload && fr_max_payload(fp)) {
skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
skb_shinfo(skb)->gso_size = fr_max_payload(fp);
} else {
skb_shinfo(skb)->gso_type = 0;
skb_shinfo(skb)->gso_size = 0;
}
#endif
/* update tx stats: regardless if LLD fails */
stats = lp->dev_stats[smp_processor_id()];
if (stats) {
@ -623,7 +633,7 @@ int fcoe_percpu_receive_thread(void *arg)
* it's solicited data, in which case, the FCP layer would
* check it during the copy.
*/
if (lp->crc_offload)
if (lp->crc_offload && skb->ip_summed == CHECKSUM_UNNECESSARY)
fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
else
fr_flags(fp) |= FCPHF_CRC_UNCHECKED;

3
drivers/scsi/hosts.c
View File

@ -176,7 +176,6 @@ void scsi_remove_host(struct Scsi_Host *shost)
transport_unregister_device(&shost->shost_gendev);
device_unregister(&shost->shost_dev);
device_del(&shost->shost_gendev);
scsi_proc_hostdir_rm(shost->hostt);
}
EXPORT_SYMBOL(scsi_remove_host);
@ -270,6 +269,8 @@ static void scsi_host_dev_release(struct device *dev)
struct Scsi_Host *shost = dev_to_shost(dev);
struct device *parent = dev->parent;
scsi_proc_hostdir_rm(shost->hostt);
if (shost->ehandler)
kthread_stop(shost->ehandler);
if (shost->work_q)

3
drivers/scsi/hptiop.c
View File

@ -580,8 +580,7 @@ static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
break;
default:
scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) |
(DID_ABORT<<16);
scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16;
break;
}

58
drivers/scsi/ibmvscsi/ibmvfc.c
View File

@ -2767,6 +2767,40 @@ static void ibmvfc_retry_tgt_init(struct ibmvfc_target *tgt,
ibmvfc_init_tgt(tgt, job_step);
}
/* Defined in FC-LS */
static const struct {
int code;
int retry;
int logged_in;
} prli_rsp [] = {
{ 0, 1, 0 },
{ 1, 0, 1 },
{ 2, 1, 0 },
{ 3, 1, 0 },
{ 4, 0, 0 },
{ 5, 0, 0 },
{ 6, 0, 1 },
{ 7, 0, 0 },
{ 8, 1, 0 },
};
/**
* ibmvfc_get_prli_rsp - Find PRLI response index
* @flags: PRLI response flags
*
**/
static int ibmvfc_get_prli_rsp(u16 flags)
{
int i;
int code = (flags & 0x0f00) >> 8;
for (i = 0; i < ARRAY_SIZE(prli_rsp); i++)
if (prli_rsp[i].code == code)
return i;
return 0;
}
/**
* ibmvfc_tgt_prli_done - Completion handler for Process Login
* @evt: ibmvfc event struct
@ -2777,15 +2811,36 @@ static void ibmvfc_tgt_prli_done(struct ibmvfc_event *evt)
struct ibmvfc_target *tgt = evt->tgt;
struct ibmvfc_host *vhost = evt->vhost;
struct ibmvfc_process_login *rsp = &evt->xfer_iu->prli;
struct ibmvfc_prli_svc_parms *parms = &rsp->parms;
u32 status = rsp->common.status;
int index;
vhost->discovery_threads--;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE);
switch (status) {
case IBMVFC_MAD_SUCCESS:
tgt_dbg(tgt, "Process Login succeeded\n");
tgt_dbg(tgt, "Process Login succeeded: %X %02X %04X\n",
parms->type, parms->flags, parms->service_parms);
if (parms->type == IBMVFC_SCSI_FCP_TYPE) {
index = ibmvfc_get_prli_rsp(parms->flags);
if (prli_rsp[index].logged_in) {
if (parms->flags & IBMVFC_PRLI_EST_IMG_PAIR) {
tgt->need_login = 0;
tgt->ids.roles = 0;
if (parms->service_parms & IBMVFC_PRLI_TARGET_FUNC)
tgt->ids.roles |= FC_PORT_ROLE_FCP_TARGET;
if (parms->service_parms & IBMVFC_PRLI_INITIATOR_FUNC)
tgt->ids.roles |= FC_PORT_ROLE_FCP_INITIATOR;
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_ADD_RPORT);
} else
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
} else if (prli_rsp[index].retry)
ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli);
else
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
} else
ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
break;
case IBMVFC_MAD_DRIVER_FAILED:
break;
@ -2874,7 +2929,6 @@ static void ibmvfc_tgt_plogi_done(struct ibmvfc_event *evt)
tgt->ids.node_name = wwn_to_u64(rsp->service_parms.node_name);
tgt->ids.port_name = wwn_to_u64(rsp->service_parms.port_name);
tgt->ids.port_id = tgt->scsi_id;
tgt->ids.roles = FC_PORT_ROLE_FCP_TARGET;
memcpy(&tgt->service_parms, &rsp->service_parms,
sizeof(tgt->service_parms));
memcpy(&tgt->service_parms_change, &rsp->service_parms_change,

13
drivers/scsi/ipr.c
View File

@ -152,13 +152,13 @@ module_param_named(log_level, ipr_log_level, uint, 0);
MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
module_param_named(testmode, ipr_testmode, int, 0);
MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
module_param_named(fastfail, ipr_fastfail, int, 0);
module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
module_param_named(enable_cache, ipr_enable_cache, int, 0);
MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
module_param_named(debug, ipr_debug, int, 0);
module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
@ -354,6 +354,8 @@ struct ipr_error_table_t ipr_error_table[] = {
"9076: Configuration error, missing remote IOA"},
{0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
"4050: Enclosure does not support a required multipath function"},
{0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
"4070: Logically bad block written on device"},
{0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
"9041: Array protection temporarily suspended"},
{0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
@ -7147,6 +7149,7 @@ static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
ENTER;
free_irq(pdev->irq, ioa_cfg);
pci_disable_msi(pdev);
iounmap(ioa_cfg->hdw_dma_regs);
pci_release_regions(pdev);
ipr_free_mem(ioa_cfg);
@ -7432,6 +7435,11 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
goto out;
}
if (!(rc = pci_enable_msi(pdev)))
dev_info(&pdev->dev, "MSI enabled\n");
else if (ipr_debug)
dev_info(&pdev->dev, "Cannot enable MSI\n");
dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
@ -7574,6 +7582,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
out_scsi_host_put:
scsi_host_put(host);
out_disable:
pci_disable_msi(pdev);
pci_disable_device(pdev);
goto out;
}

4
drivers/scsi/ipr.h
View File

@ -37,8 +37,8 @@
/*
* Literals
*/
#define IPR_DRIVER_VERSION "2.4.1"
#define IPR_DRIVER_DATE "(April 24, 2007)"
#define IPR_DRIVER_VERSION "2.4.2"
#define IPR_DRIVER_DATE "(January 21, 2009)"
/*
* IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding

3
drivers/scsi/ips.c
View File

@ -1004,8 +1004,7 @@ static int __ips_eh_reset(struct scsi_cmnd *SC)
DEBUG_VAR(1, "(%s%d) Failing active commands", ips_name, ha->host_num);
while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
scb->scsi_cmd->result =
(DID_RESET << 16) | (SUGGEST_RETRY << 24);
scb->scsi_cmd->result = DID_RESET << 16;
scb->scsi_cmd->scsi_done(scb->scsi_cmd);
ips_freescb(ha, scb);
}

69
drivers/scsi/iscsi_tcp.c
View File

@ -48,13 +48,6 @@ MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, "
"Alex Aizman <itn780@yahoo.com>");
MODULE_DESCRIPTION("iSCSI/TCP data-path");
MODULE_LICENSE("GPL");
#undef DEBUG_TCP
#ifdef DEBUG_TCP
#define debug_tcp(fmt...) printk(KERN_INFO "tcp: " fmt)
#else
#define debug_tcp(fmt...)
#endif
static struct scsi_transport_template *iscsi_sw_tcp_scsi_transport;
static struct scsi_host_template iscsi_sw_tcp_sht;
@ -63,6 +56,21 @@ static struct iscsi_transport iscsi_sw_tcp_transport;
static unsigned int iscsi_max_lun = 512;
module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
static int iscsi_sw_tcp_dbg;
module_param_named(debug_iscsi_tcp, iscsi_sw_tcp_dbg, int,
S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug_iscsi_tcp, "Turn on debugging for iscsi_tcp module "
"Set to 1 to turn on, and zero to turn off. Default is off.");
#define ISCSI_SW_TCP_DBG(_conn, dbg_fmt, arg...) \
do { \
if (iscsi_sw_tcp_dbg) \
iscsi_conn_printk(KERN_INFO, _conn, \
"%s " dbg_fmt, \
__func__, ##arg); \
} while (0);
/**
* iscsi_sw_tcp_recv - TCP receive in sendfile fashion
* @rd_desc: read descriptor
@ -77,7 +85,7 @@ static int iscsi_sw_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
unsigned int consumed, total_consumed = 0;
int status;
debug_tcp("in %d bytes\n", skb->len - offset);
ISCSI_SW_TCP_DBG(conn, "in %d bytes\n", skb->len - offset);
do {
status = 0;
@ -86,7 +94,8 @@ static int iscsi_sw_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
total_consumed += consumed;
} while (consumed != 0 && status != ISCSI_TCP_SKB_DONE);
debug_tcp("read %d bytes status %d\n", skb->len - offset, status);
ISCSI_SW_TCP_DBG(conn, "read %d bytes status %d\n",
skb->len - offset, status);
return total_consumed;
}
@ -131,7 +140,8 @@ static void iscsi_sw_tcp_state_change(struct sock *sk)
if ((sk->sk_state == TCP_CLOSE_WAIT ||
sk->sk_state == TCP_CLOSE) &&
!atomic_read(&sk->sk_rmem_alloc)) {
debug_tcp("iscsi_tcp_state_change: TCP_CLOSE|TCP_CLOSE_WAIT\n");
ISCSI_SW_TCP_DBG(conn, "iscsi_tcp_state_change: "
"TCP_CLOSE|TCP_CLOSE_WAIT\n");
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
}
@ -155,8 +165,8 @@ static void iscsi_sw_tcp_write_space(struct sock *sk)
struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
tcp_sw_conn->old_write_space(sk);
debug_tcp("iscsi_write_space: cid %d\n", conn->id);
scsi_queue_work(conn->session->host, &conn->xmitwork);
ISCSI_SW_TCP_DBG(conn, "iscsi_write_space\n");
iscsi_conn_queue_work(conn);
}
static void iscsi_sw_tcp_conn_set_callbacks(struct iscsi_conn *conn)
@ -283,7 +293,7 @@ static int iscsi_sw_tcp_xmit(struct iscsi_conn *conn)
}
}
debug_tcp("xmit %d bytes\n", consumed);
ISCSI_SW_TCP_DBG(conn, "xmit %d bytes\n", consumed);
conn->txdata_octets += consumed;
return consumed;
@ -291,7 +301,7 @@ static int iscsi_sw_tcp_xmit(struct iscsi_conn *conn)
error:
/* Transmit error. We could initiate error recovery
* here. */
debug_tcp("Error sending PDU, errno=%d\n", rc);
ISCSI_SW_TCP_DBG(conn, "Error sending PDU, errno=%d\n", rc);
iscsi_conn_failure(conn, rc);
return -EIO;
}
@ -334,7 +344,8 @@ static int iscsi_sw_tcp_send_hdr_done(struct iscsi_tcp_conn *tcp_conn,
struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
tcp_sw_conn->out.segment = tcp_sw_conn->out.data_segment;
debug_tcp("Header done. Next segment size %u total_size %u\n",
ISCSI_SW_TCP_DBG(tcp_conn->iscsi_conn,
"Header done. Next segment size %u total_size %u\n",
tcp_sw_conn->out.segment.size,
tcp_sw_conn->out.segment.total_size);
return 0;
@ -346,8 +357,8 @@ static void iscsi_sw_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr,
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct iscsi_sw_tcp_conn *tcp_sw_conn = tcp_conn->dd_data;
debug_tcp("%s(%p%s)\n", __func__, tcp_conn,
conn->hdrdgst_en? ", digest enabled" : "");
ISCSI_SW_TCP_DBG(conn, "%s\n", conn->hdrdgst_en ?
"digest enabled" : "digest disabled");
/* Clear the data segment - needs to be filled in by the
* caller using iscsi_tcp_send_data_prep() */
@ -389,9 +400,9 @@ iscsi_sw_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg,
struct hash_desc *tx_hash = NULL;
unsigned int hdr_spec_len;
debug_tcp("%s(%p, offset=%d, datalen=%d%s)\n", __func__,
tcp_conn, offset, len,
conn->datadgst_en? ", digest enabled" : "");
ISCSI_SW_TCP_DBG(conn, "offset=%d, datalen=%d %s\n", offset, len,
conn->datadgst_en ?
"digest enabled" : "digest disabled");
/* Make sure the datalen matches what the caller
said he would send. */
@ -415,8 +426,8 @@ iscsi_sw_tcp_send_linear_data_prep(struct iscsi_conn *conn, void *data,
struct hash_desc *tx_hash = NULL;
unsigned int hdr_spec_len;
debug_tcp("%s(%p, datalen=%d%s)\n", __func__, tcp_conn, len,
conn->datadgst_en? ", digest enabled" : "");
ISCSI_SW_TCP_DBG(conn, "datalen=%zd %s\n", len, conn->datadgst_en ?
"digest enabled" : "digest disabled");
/* Make sure the datalen matches what the caller
said he would send. */
@ -754,8 +765,7 @@ iscsi_sw_tcp_conn_get_stats(struct iscsi_cls_conn *cls_conn,
static struct iscsi_cls_session *
iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
uint16_t qdepth, uint32_t initial_cmdsn,
uint32_t *hostno)
uint16_t qdepth, uint32_t initial_cmdsn)
{
struct iscsi_cls_session *cls_session;
struct iscsi_session *session;
@ -766,10 +776,11 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
return NULL;
}
shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, qdepth);
shost = iscsi_host_alloc(&iscsi_sw_tcp_sht, 0, 1);
if (!shost)
return NULL;
shost->transportt = iscsi_sw_tcp_scsi_transport;
shost->cmd_per_lun = qdepth;
shost->max_lun = iscsi_max_lun;
shost->max_id = 0;
shost->max_channel = 0;
@ -777,7 +788,6 @@ iscsi_sw_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
if (iscsi_host_add(shost, NULL))
goto free_host;
*hostno = shost->host_no;
cls_session = iscsi_session_setup(&iscsi_sw_tcp_transport, shost,
cmds_max,
@ -813,6 +823,12 @@ static void iscsi_sw_tcp_session_destroy(struct iscsi_cls_session *cls_session)
iscsi_host_free(shost);
}
static int iscsi_sw_tcp_slave_alloc(struct scsi_device *sdev)
{
set_bit(QUEUE_FLAG_BIDI, &sdev->request_queue->queue_flags);
return 0;
}
static int iscsi_sw_tcp_slave_configure(struct scsi_device *sdev)
{
blk_queue_bounce_limit(sdev->request_queue, BLK_BOUNCE_ANY);
@ -833,6 +849,7 @@ static struct scsi_host_template iscsi_sw_tcp_sht = {
.eh_device_reset_handler= iscsi_eh_device_reset,
.eh_target_reset_handler= iscsi_eh_target_reset,
.use_clustering = DISABLE_CLUSTERING,
.slave_alloc = iscsi_sw_tcp_slave_alloc,
.slave_configure = iscsi_sw_tcp_slave_configure,
.proc_name = "iscsi_tcp",
.this_id = -1,

6
drivers/scsi/libfc/fc_exch.c
View File

@ -281,7 +281,7 @@ static void fc_exch_release(struct fc_exch *ep)
ep->destructor(&ep->seq, ep->arg);
if (ep->lp->tt.exch_put)
ep->lp->tt.exch_put(ep->lp, mp, ep->xid);
WARN_ON(!ep->esb_stat & ESB_ST_COMPLETE);
WARN_ON(!(ep->esb_stat & ESB_ST_COMPLETE));
mempool_free(ep, mp->ep_pool);
}
}
@ -489,7 +489,7 @@ static u16 fc_em_alloc_xid(struct fc_exch_mgr *mp, const struct fc_frame *fp)
struct fc_exch *ep = NULL;
if (mp->max_read) {
if (fc_frame_is_read(fp)) {
if (fc_fcp_is_read(fr_fsp(fp))) {
min = mp->min_xid;
max = mp->max_read;
plast = &mp->last_read;
@ -1841,6 +1841,8 @@ struct fc_seq *fc_exch_seq_send(struct fc_lport *lp,
fc_exch_setup_hdr(ep, fp, ep->f_ctl);
sp->cnt++;
fc_fcp_ddp_setup(fr_fsp(fp), ep->xid);
if (unlikely(lp->tt.frame_send(lp, fp)))
goto err;

75
drivers/scsi/libfc/fc_fcp.c
View File

@ -259,11 +259,61 @@ static void fc_fcp_retry_cmd(struct fc_fcp_pkt *fsp)
}
fsp->state &= ~FC_SRB_ABORT_PENDING;
fsp->io_status = SUGGEST_RETRY << 24;
fsp->io_status = 0;
fsp->status_code = FC_ERROR;
fc_fcp_complete_locked(fsp);
}
/*
* fc_fcp_ddp_setup - calls to LLD's ddp_setup to set up DDP
* transfer for a read I/O indicated by the fc_fcp_pkt.
* @fsp: ptr to the fc_fcp_pkt
*
* This is called in exch_seq_send() when we have a newly allocated
* exchange with a valid exchange id to setup ddp.
*
* returns: none
*/
void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid)
{
struct fc_lport *lp;
if (!fsp)
return;
lp = fsp->lp;
if ((fsp->req_flags & FC_SRB_READ) &&
(lp->lro_enabled) && (lp->tt.ddp_setup)) {
if (lp->tt.ddp_setup(lp, xid, scsi_sglist(fsp->cmd),
scsi_sg_count(fsp->cmd)))
fsp->xfer_ddp = xid;
}
}
EXPORT_SYMBOL(fc_fcp_ddp_setup);
/*
* fc_fcp_ddp_done - calls to LLD's ddp_done to release any
* DDP related resources for this I/O if it is initialized
* as a ddp transfer
* @fsp: ptr to the fc_fcp_pkt
*
* returns: none
*/
static void fc_fcp_ddp_done(struct fc_fcp_pkt *fsp)
{
struct fc_lport *lp;
if (!fsp)
return;
lp = fsp->lp;
if (fsp->xfer_ddp && lp->tt.ddp_done) {
fsp->xfer_len = lp->tt.ddp_done(lp, fsp->xfer_ddp);
fsp->xfer_ddp = 0;
}
}
/*
* Receive SCSI data from target.
* Called after receiving solicited data.
@ -289,6 +339,9 @@ static void fc_fcp_recv_data(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
len = fr_len(fp) - sizeof(*fh);
buf = fc_frame_payload_get(fp, 0);
/* if this I/O is ddped, update xfer len */
fc_fcp_ddp_done(fsp);
if (offset + len > fsp->data_len) {
/* this should never happen */
if ((fr_flags(fp) & FCPHF_CRC_UNCHECKED) &&
@ -435,7 +488,13 @@ static int fc_fcp_send_data(struct fc_fcp_pkt *fsp, struct fc_seq *seq,
* burst length (t_blen) to seq_blen, otherwise set t_blen
* to max FC frame payload previously set in fsp->max_payload.
*/
t_blen = lp->seq_offload ? seq_blen : fsp->max_payload;
t_blen = fsp->max_payload;
if (lp->seq_offload) {
t_blen = min(seq_blen, (size_t)lp->lso_max);
FC_DEBUG_FCP("fsp=%p:lso:blen=%zx lso_max=0x%x t_blen=%zx\n",
fsp, seq_blen, lp->lso_max, t_blen);
}
WARN_ON(t_blen < FC_MIN_MAX_PAYLOAD);
if (t_blen > 512)
t_blen &= ~(512 - 1); /* round down to block size */
@ -744,6 +803,9 @@ static void fc_fcp_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
fsp->scsi_comp_flags = flags;
expected_len = fsp->data_len;
/* if ddp, update xfer len */
fc_fcp_ddp_done(fsp);
if (unlikely((flags & ~FCP_CONF_REQ) || fc_rp->fr_status)) {
rp_ex = (void *)(fc_rp + 1);
if (flags & (FCP_RSP_LEN_VAL | FCP_SNS_LEN_VAL)) {
@ -859,7 +921,7 @@ static void fc_fcp_complete_locked(struct fc_fcp_pkt *fsp)
(!(fsp->scsi_comp_flags & FCP_RESID_UNDER) ||
fsp->xfer_len < fsp->data_len - fsp->scsi_resid)) {
fsp->status_code = FC_DATA_UNDRUN;
fsp->io_status = SUGGEST_RETRY << 24;
fsp->io_status = 0;
}
}
@ -1006,7 +1068,7 @@ static int fc_fcp_cmd_send(struct fc_lport *lp, struct fc_fcp_pkt *fsp,
}
memcpy(fc_frame_payload_get(fp, len), &fsp->cdb_cmd, len);
fr_cmd(fp) = fsp->cmd;
fr_fsp(fp) = fsp;
rport = fsp->rport;
fsp->max_payload = rport->maxframe_size;
rp = rport->dd_data;
@ -1267,7 +1329,7 @@ static void fc_fcp_rec(struct fc_fcp_pkt *fsp)
rp = rport->dd_data;
if (!fsp->seq_ptr || rp->rp_state != RPORT_ST_READY) {
fsp->status_code = FC_HRD_ERROR;
fsp->io_status = SUGGEST_RETRY << 24;
fsp->io_status = 0;
fc_fcp_complete_locked(fsp);
return;
}
@ -1740,6 +1802,9 @@ static void fc_io_compl(struct fc_fcp_pkt *fsp)
struct fc_lport *lp;
unsigned long flags;
/* release outstanding ddp context */
fc_fcp_ddp_done(fsp);
fsp->state |= FC_SRB_COMPL;
if (!(fsp->state & FC_SRB_FCP_PROCESSING_TMO)) {
spin_unlock_bh(&fsp->scsi_pkt_lock);

5
drivers/scsi/libfc/fc_lport.c
View File

@ -762,10 +762,11 @@ static void fc_lport_recv_flogi_req(struct fc_seq *sp_in,
remote_wwpn = get_unaligned_be64(&flp->fl_wwpn);
if (remote_wwpn == lport->wwpn) {
FC_DBG("FLOGI from port with same WWPN %llx "
"possible configuration error\n", remote_wwpn);
"possible configuration error\n",
(unsigned long long)remote_wwpn);
goto out;
}
FC_DBG("FLOGI from port WWPN %llx\n", remote_wwpn);
FC_DBG("FLOGI from port WWPN %llx\n", (unsigned long long)remote_wwpn);
/*
* XXX what is the right thing to do for FIDs?

2
drivers/scsi/libfc/fc_rport.c
View File

@ -988,7 +988,7 @@ static void fc_rport_recv_plogi_req(struct fc_rport *rport,
switch (rdata->rp_state) {
case RPORT_ST_INIT:
FC_DEBUG_RPORT("incoming PLOGI from %6x wwpn %llx state INIT "
"- reject\n", sid, wwpn);
"- reject\n", sid, (unsigned long long)wwpn);
reject = ELS_RJT_UNSUP;
break;
case RPORT_ST_PLOGI:

214
drivers/scsi/libiscsi.c
View File

@ -38,6 +38,28 @@
#include <scsi/scsi_transport_iscsi.h>
#include <scsi/libiscsi.h>
static int iscsi_dbg_lib;
module_param_named(debug_libiscsi, iscsi_dbg_lib, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug_libiscsi, "Turn on debugging for libiscsi module. "
"Set to 1 to turn on, and zero to turn off. Default "
"is off.");
#define ISCSI_DBG_CONN(_conn, dbg_fmt, arg...) \
do { \
if (iscsi_dbg_lib) \
iscsi_conn_printk(KERN_INFO, _conn, \
"%s " dbg_fmt, \
__func__, ##arg); \
} while (0);
#define ISCSI_DBG_SESSION(_session, dbg_fmt, arg...) \
do { \
if (iscsi_dbg_lib) \
iscsi_session_printk(KERN_INFO, _session, \
"%s " dbg_fmt, \
__func__, ##arg); \
} while (0);
/* Serial Number Arithmetic, 32 bits, less than, RFC1982 */
#define SNA32_CHECK 2147483648UL
@ -54,6 +76,15 @@ static int iscsi_sna_lte(u32 n1, u32 n2)
(n1 > n2 && (n2 - n1 < SNA32_CHECK)));
}
inline void iscsi_conn_queue_work(struct iscsi_conn *conn)
{
struct Scsi_Host *shost = conn->session->host;
struct iscsi_host *ihost = shost_priv(shost);
queue_work(ihost->workq, &conn->xmitwork);
}
EXPORT_SYMBOL_GPL(iscsi_conn_queue_work);
void
iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
{
@ -81,8 +112,7 @@ iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
if (!list_empty(&session->leadconn->xmitqueue) ||
!list_empty(&session->leadconn->mgmtqueue)) {
if (!(session->tt->caps & CAP_DATA_PATH_OFFLOAD))
scsi_queue_work(session->host,
&session->leadconn->xmitwork);
iscsi_conn_queue_work(session->leadconn);
}
}
}
@ -176,10 +206,11 @@ static int iscsi_prep_ecdb_ahs(struct iscsi_task *task)
ecdb_ahdr->reserved = 0;
memcpy(ecdb_ahdr->ecdb, cmd->cmnd + ISCSI_CDB_SIZE, rlen);
debug_scsi("iscsi_prep_ecdb_ahs: varlen_cdb_len %d "
"rlen %d pad_len %d ahs_length %d iscsi_headers_size %u\n",
cmd->cmd_len, rlen, pad_len, ahslength, task->hdr_len);
ISCSI_DBG_SESSION(task->conn->session,
"iscsi_prep_ecdb_ahs: varlen_cdb_len %d "
"rlen %d pad_len %d ahs_length %d iscsi_headers_size "
"%u\n", cmd->cmd_len, rlen, pad_len, ahslength,
task->hdr_len);
return 0;
}
@ -201,7 +232,8 @@ static int iscsi_prep_bidi_ahs(struct iscsi_task *task)
rlen_ahdr->reserved = 0;
rlen_ahdr->read_length = cpu_to_be32(scsi_in(sc)->length);
debug_scsi("bidi-in rlen_ahdr->read_length(%d) "
ISCSI_DBG_SESSION(task->conn->session,
"bidi-in rlen_ahdr->read_length(%d) "
"rlen_ahdr->ahslength(%d)\n",
be32_to_cpu(rlen_ahdr->read_length),
be16_to_cpu(rlen_ahdr->ahslength));
@ -335,13 +367,15 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
list_move_tail(&task->running, &conn->run_list);
conn->scsicmd_pdus_cnt++;
debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
"bidi_len %d cmdsn %d win %d]\n", scsi_bidi_cmnd(sc) ?
"bidirectional" : sc->sc_data_direction == DMA_TO_DEVICE ?
"write" : "read", conn->id, sc, sc->cmnd[0], task->itt,
scsi_bufflen(sc),
ISCSI_DBG_SESSION(session, "iscsi prep [%s cid %d sc %p cdb 0x%x "
"itt 0x%x len %d bidi_len %d cmdsn %d win %d]\n",
scsi_bidi_cmnd(sc) ? "bidirectional" :
sc->sc_data_direction == DMA_TO_DEVICE ?
"write" : "read", conn->id, sc, sc->cmnd[0],
task->itt, scsi_bufflen(sc),
scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,
session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
session->cmdsn,
session->max_cmdsn - session->exp_cmdsn + 1);
return 0;
}
@ -483,9 +517,9 @@ static int iscsi_prep_mgmt_task(struct iscsi_conn *conn,
task->state = ISCSI_TASK_RUNNING;
list_move_tail(&task->running, &conn->mgmt_run_list);
debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n",
hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt,
task->data_count);
ISCSI_DBG_SESSION(session, "mgmtpdu [op 0x%x hdr->itt 0x%x "
"datalen %d]\n", hdr->opcode & ISCSI_OPCODE_MASK,
hdr->itt, task->data_count);
return 0;
}
@ -560,7 +594,7 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
goto free_task;
} else
scsi_queue_work(conn->session->host, &conn->xmitwork);
iscsi_conn_queue_work(conn);
return task;
@ -637,8 +671,9 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
memcpy(sc->sense_buffer, data + 2,
min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
debug_scsi("copied %d bytes of sense\n",
min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
ISCSI_DBG_SESSION(session, "copied %d bytes of sense\n",
min_t(uint16_t, senselen,
SCSI_SENSE_BUFFERSIZE));
}
if (rhdr->flags & (ISCSI_FLAG_CMD_BIDI_UNDERFLOW |
@ -666,8 +701,8 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
}
out:
debug_scsi("done [sc %lx res %d itt 0x%x]\n",
(long)sc, sc->result, task->itt);
ISCSI_DBG_SESSION(session, "done [sc %p res %d itt 0x%x]\n",
sc, sc->result, task->itt);
conn->scsirsp_pdus_cnt++;
__iscsi_put_task(task);
@ -835,7 +870,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
else
itt = ~0U;
debug_scsi("[op 0x%x cid %d itt 0x%x len %d]\n",
ISCSI_DBG_SESSION(session, "[op 0x%x cid %d itt 0x%x len %d]\n",
opcode, conn->id, itt, datalen);
if (itt == ~0U) {
@ -1034,10 +1069,9 @@ struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
}
EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask);
void iscsi_session_failure(struct iscsi_cls_session *cls_session,
void iscsi_session_failure(struct iscsi_session *session,
enum iscsi_err err)
{
struct iscsi_session *session = cls_session->dd_data;
struct iscsi_conn *conn;
struct device *dev;
unsigned long flags;
@ -1095,10 +1129,10 @@ static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn)
* Check for iSCSI window and take care of CmdSN wrap-around
*/
if (!iscsi_sna_lte(session->queued_cmdsn, session->max_cmdsn)) {
debug_scsi("iSCSI CmdSN closed. ExpCmdSn %u MaxCmdSN %u "
"CmdSN %u/%u\n", session->exp_cmdsn,
session->max_cmdsn, session->cmdsn,
session->queued_cmdsn);
ISCSI_DBG_SESSION(session, "iSCSI CmdSN closed. ExpCmdSn "
"%u MaxCmdSN %u CmdSN %u/%u\n",
session->exp_cmdsn, session->max_cmdsn,
session->cmdsn, session->queued_cmdsn);
return -ENOSPC;
}
return 0;
@ -1133,7 +1167,7 @@ void iscsi_requeue_task(struct iscsi_task *task)
struct iscsi_conn *conn = task->conn;
list_move_tail(&task->running, &conn->requeue);
scsi_queue_work(conn->session->host, &conn->xmitwork);
iscsi_conn_queue_work(conn);
}
EXPORT_SYMBOL_GPL(iscsi_requeue_task);
@ -1152,7 +1186,7 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
spin_lock_bh(&conn->session->lock);
if (unlikely(conn->suspend_tx)) {
debug_scsi("conn %d Tx suspended!\n", conn->id);
ISCSI_DBG_SESSION(conn->session, "Tx suspended!\n");
spin_unlock_bh(&conn->session->lock);
return -ENODATA;
}
@ -1386,7 +1420,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
goto prepd_reject;
}
} else
scsi_queue_work(session->host, &conn->xmitwork);
iscsi_conn_queue_work(conn);
session->queued_cmdsn++;
spin_unlock(&session->lock);
@ -1398,7 +1432,8 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
iscsi_complete_command(task);
reject:
spin_unlock(&session->lock);
debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason);
ISCSI_DBG_SESSION(session, "cmd 0x%x rejected (%d)\n",
sc->cmnd[0], reason);
spin_lock(host->host_lock);
return SCSI_MLQUEUE_TARGET_BUSY;
@ -1407,7 +1442,8 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
iscsi_complete_command(task);
fault:
spin_unlock(&session->lock);
debug_scsi("iscsi: cmd 0x%x is not queued (%d)\n", sc->cmnd[0], reason);
ISCSI_DBG_SESSION(session, "iscsi: cmd 0x%x is not queued (%d)\n",
sc->cmnd[0], reason);
if (!scsi_bidi_cmnd(sc))
scsi_set_resid(sc, scsi_bufflen(sc));
else {
@ -1422,8 +1458,6 @@ EXPORT_SYMBOL_GPL(iscsi_queuecommand);
int iscsi_change_queue_depth(struct scsi_device *sdev, int depth)
{
if (depth > ISCSI_MAX_CMD_PER_LUN)
depth = ISCSI_MAX_CMD_PER_LUN;
scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), depth);
return sdev->queue_depth;
}
@ -1457,8 +1491,10 @@ int iscsi_eh_target_reset(struct scsi_cmnd *sc)
spin_lock_bh(&session->lock);
if (session->state == ISCSI_STATE_TERMINATE) {
failed:
debug_scsi("failing target reset: session terminated "
"[CID %d age %d]\n", conn->id, session->age);
iscsi_session_printk(KERN_INFO, session,
"failing target reset: Could not log "
"back into target [age %d]\n",
session->age);
spin_unlock_bh(&session->lock);
mutex_unlock(&session->eh_mutex);
return FAILED;
@ -1472,7 +1508,7 @@ int iscsi_eh_target_reset(struct scsi_cmnd *sc)
*/
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
debug_scsi("iscsi_eh_target_reset wait for relogin\n");
ISCSI_DBG_SESSION(session, "wait for relogin\n");
wait_event_interruptible(conn->ehwait,
session->state == ISCSI_STATE_TERMINATE ||
session->state == ISCSI_STATE_LOGGED_IN ||
@ -1501,7 +1537,7 @@ static void iscsi_tmf_timedout(unsigned long data)
spin_lock(&session->lock);
if (conn->tmf_state == TMF_QUEUED) {
conn->tmf_state = TMF_TIMEDOUT;
debug_scsi("tmf timedout\n");
ISCSI_DBG_SESSION(session, "tmf timedout\n");
/* unblock eh_abort() */
wake_up(&conn->ehwait);
}
@ -1521,7 +1557,7 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
spin_unlock_bh(&session->lock);
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
spin_lock_bh(&session->lock);
debug_scsi("tmf exec failure\n");
ISCSI_DBG_SESSION(session, "tmf exec failure\n");
return -EPERM;
}
conn->tmfcmd_pdus_cnt++;
@ -1529,7 +1565,7 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
conn->tmf_timer.function = iscsi_tmf_timedout;
conn->tmf_timer.data = (unsigned long)conn;
add_timer(&conn->tmf_timer);
debug_scsi("tmf set timeout\n");
ISCSI_DBG_SESSION(session, "tmf set timeout\n");
spin_unlock_bh(&session->lock);
mutex_unlock(&session->eh_mutex);
@ -1567,13 +1603,17 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
{
struct iscsi_task *task, *tmp;
if (conn->task && (conn->task->sc->device->lun == lun || lun == -1))
if (conn->task) {
if (lun == -1 ||
(conn->task->sc && conn->task->sc->device->lun == lun))
conn->task = NULL;
}
/* flush pending */
list_for_each_entry_safe(task, tmp, &conn->xmitqueue, running) {
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing pending sc %p itt 0x%x\n",
ISCSI_DBG_SESSION(conn->session,
"failing pending sc %p itt 0x%x\n",
task->sc, task->itt);
fail_command(conn, task, error << 16);
}
@ -1581,7 +1621,8 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
list_for_each_entry_safe(task, tmp, &conn->requeue, running) {
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing requeued sc %p itt 0x%x\n",
ISCSI_DBG_SESSION(conn->session,
"failing requeued sc %p itt 0x%x\n",
task->sc, task->itt);
fail_command(conn, task, error << 16);
}
@ -1590,7 +1631,8 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
/* fail all other running */
list_for_each_entry_safe(task, tmp, &conn->run_list, running) {
if (lun == task->sc->device->lun || lun == -1) {
debug_scsi("failing in progress sc %p itt 0x%x\n",
ISCSI_DBG_SESSION(conn->session,
"failing in progress sc %p itt 0x%x\n",
task->sc, task->itt);
fail_command(conn, task, error << 16);
}
@ -1599,9 +1641,12 @@ static void fail_all_commands(struct iscsi_conn *conn, unsigned lun,
void iscsi_suspend_tx(struct iscsi_conn *conn)
{
struct Scsi_Host *shost = conn->session->host;
struct iscsi_host *ihost = shost_priv(shost);
set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
if (!(conn->session->tt->caps & CAP_DATA_PATH_OFFLOAD))
scsi_flush_work(conn->session->host);
flush_workqueue(ihost->workq);
}
EXPORT_SYMBOL_GPL(iscsi_suspend_tx);
@ -1609,7 +1654,7 @@ static void iscsi_start_tx(struct iscsi_conn *conn)
{
clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
if (!(conn->session->tt->caps & CAP_DATA_PATH_OFFLOAD))
scsi_queue_work(conn->session->host, &conn->xmitwork);
iscsi_conn_queue_work(conn);
}
static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
@ -1622,7 +1667,7 @@ static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
cls_session = starget_to_session(scsi_target(scmd->device));
session = cls_session->dd_data;
debug_scsi("scsi cmd %p timedout\n", scmd);
ISCSI_DBG_SESSION(session, "scsi cmd %p timedout\n", scmd);
spin_lock(&session->lock);
if (session->state != ISCSI_STATE_LOGGED_IN) {
@ -1662,7 +1707,7 @@ static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
rc = BLK_EH_RESET_TIMER;
done:
spin_unlock(&session->lock);
debug_scsi("return %s\n", rc == BLK_EH_RESET_TIMER ?
ISCSI_DBG_SESSION(session, "return %s\n", rc == BLK_EH_RESET_TIMER ?
"timer reset" : "nh");
return rc;
}
@ -1697,13 +1742,13 @@ static void iscsi_check_transport_timeouts(unsigned long data)
if (time_before_eq(last_recv + recv_timeout, jiffies)) {
/* send a ping to try to provoke some traffic */
debug_scsi("Sending nopout as ping on conn %p\n", conn);
ISCSI_DBG_CONN(conn, "Sending nopout as ping\n");
iscsi_send_nopout(conn, NULL);
next_timeout = conn->last_ping + (conn->ping_timeout * HZ);
} else
next_timeout = last_recv + recv_timeout;
debug_scsi("Setting next tmo %lu\n", next_timeout);
ISCSI_DBG_CONN(conn, "Setting next tmo %lu\n", next_timeout);
mod_timer(&conn->transport_timer, next_timeout);
done:
spin_unlock(&session->lock);
@ -1740,7 +1785,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
* got the command.
*/
if (!sc->SCp.ptr) {
debug_scsi("sc never reached iscsi layer or it completed.\n");
ISCSI_DBG_SESSION(session, "sc never reached iscsi layer or "
"it completed.\n");
spin_unlock_bh(&session->lock);
mutex_unlock(&session->eh_mutex);
return SUCCESS;
@ -1762,11 +1808,13 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
age = session->age;
task = (struct iscsi_task *)sc->SCp.ptr;
debug_scsi("aborting [sc %p itt 0x%x]\n", sc, task->itt);
ISCSI_DBG_SESSION(session, "aborting [sc %p itt 0x%x]\n",
sc, task->itt);
/* task completed before time out */
if (!task->sc) {
debug_scsi("sc completed while abort in progress\n");
ISCSI_DBG_SESSION(session, "sc completed while abort in "
"progress\n");
goto success;
}
@ -1815,7 +1863,8 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
if (!sc->SCp.ptr) {
conn->tmf_state = TMF_INITIAL;
/* task completed before tmf abort response */
debug_scsi("sc completed while abort in progress\n");
ISCSI_DBG_SESSION(session, "sc completed while abort "
"in progress\n");
goto success;
}
/* fall through */
@ -1827,14 +1876,15 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
success:
spin_unlock_bh(&session->lock);
success_unlocked:
debug_scsi("abort success [sc %lx itt 0x%x]\n", (long)sc, task->itt);
ISCSI_DBG_SESSION(session, "abort success [sc %p itt 0x%x]\n",
sc, task->itt);
mutex_unlock(&session->eh_mutex);
return SUCCESS;
failed:
spin_unlock_bh(&session->lock);
failed_unlocked:
debug_scsi("abort failed [sc %p itt 0x%x]\n", sc,
ISCSI_DBG_SESSION(session, "abort failed [sc %p itt 0x%x]\n", sc,
task ? task->itt : 0);
mutex_unlock(&session->eh_mutex);
return FAILED;
@ -1862,7 +1912,8 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
cls_session = starget_to_session(scsi_target(sc->device));
session = cls_session->dd_data;
debug_scsi("LU Reset [sc %p lun %u]\n", sc, sc->device->lun);
ISCSI_DBG_SESSION(session, "LU Reset [sc %p lun %u]\n",
sc, sc->device->lun);
mutex_lock(&session->eh_mutex);
spin_lock_bh(&session->lock);
@ -1916,7 +1967,7 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
unlock:
spin_unlock_bh(&session->lock);
done:
debug_scsi("iscsi_eh_device_reset %s\n",
ISCSI_DBG_SESSION(session, "dev reset result = %s\n",
rc == SUCCESS ? "SUCCESS" : "FAILED");
mutex_unlock(&session->eh_mutex);
return rc;
@ -1944,7 +1995,7 @@ iscsi_pool_init(struct iscsi_pool *q, int max, void ***items, int item_size)
num_arrays++;
q->pool = kzalloc(num_arrays * max * sizeof(void*), GFP_KERNEL);
if (q->pool == NULL)
goto enomem;
return -ENOMEM;
q->queue = kfifo_init((void*)q->pool, max * sizeof(void*),
GFP_KERNEL, NULL);
@ -1979,7 +2030,6 @@ void iscsi_pool_free(struct iscsi_pool *q)
for (i = 0; i < q->max; i++)
kfree(q->pool[i]);
if (q->pool)
kfree(q->pool);
kfree(q->queue);
}
@ -1998,6 +2048,9 @@ int iscsi_host_add(struct Scsi_Host *shost, struct device *pdev)
if (!shost->can_queue)
shost->can_queue = ISCSI_DEF_XMIT_CMDS_MAX;
if (!shost->cmd_per_lun)
shost->cmd_per_lun = ISCSI_DEF_CMD_PER_LUN;
if (!shost->transportt->eh_timed_out)
shost->transportt->eh_timed_out = iscsi_eh_cmd_timed_out;
return scsi_add_host(shost, pdev);
@ -2008,13 +2061,13 @@ EXPORT_SYMBOL_GPL(iscsi_host_add);
* iscsi_host_alloc - allocate a host and driver data
* @sht: scsi host template
* @dd_data_size: driver host data size
* @qdepth: default device queue depth
* @xmit_can_sleep: bool indicating if LLD will queue IO from a work queue
*
* This should be called by partial offload and software iscsi drivers.
* To access the driver specific memory use the iscsi_host_priv() macro.
*/
struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
int dd_data_size, uint16_t qdepth)
int dd_data_size, bool xmit_can_sleep)
{
struct Scsi_Host *shost;
struct iscsi_host *ihost;
@ -2022,28 +2075,31 @@ struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
shost = scsi_host_alloc(sht, sizeof(struct iscsi_host) + dd_data_size);
if (!shost)
return NULL;
if (qdepth > ISCSI_MAX_CMD_PER_LUN || qdepth < 1) {
if (qdepth != 0)
printk(KERN_ERR "iscsi: invalid queue depth of %d. "
"Queue depth must be between 1 and %d.\n",
qdepth, ISCSI_MAX_CMD_PER_LUN);
qdepth = ISCSI_DEF_CMD_PER_LUN;
}
shost->cmd_per_lun = qdepth;
ihost = shost_priv(shost);
if (xmit_can_sleep) {
snprintf(ihost->workq_name, sizeof(ihost->workq_name),
"iscsi_q_%d", shost->host_no);
ihost->workq = create_singlethread_workqueue(ihost->workq_name);
if (!ihost->workq)
goto free_host;
}
spin_lock_init(&ihost->lock);
ihost->state = ISCSI_HOST_SETUP;
ihost->num_sessions = 0;
init_waitqueue_head(&ihost->session_removal_wq);
return shost;
free_host:
scsi_host_put(shost);
return NULL;
}
EXPORT_SYMBOL_GPL(iscsi_host_alloc);
static void iscsi_notify_host_removed(struct iscsi_cls_session *cls_session)
{
iscsi_session_failure(cls_session, ISCSI_ERR_INVALID_HOST);
iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_INVALID_HOST);
}
/**
@ -2069,6 +2125,8 @@ void iscsi_host_remove(struct Scsi_Host *shost)
flush_signals(current);
scsi_remove_host(shost);
if (ihost->workq)
destroy_workqueue(ihost->workq);
}
EXPORT_SYMBOL_GPL(iscsi_host_remove);
@ -2467,14 +2525,16 @@ flush_control_queues(struct iscsi_session *session, struct iscsi_conn *conn)
/* handle pending */
list_for_each_entry_safe(task, tmp, &conn->mgmtqueue, running) {
debug_scsi("flushing pending mgmt task itt 0x%x\n", task->itt);
ISCSI_DBG_SESSION(session, "flushing pending mgmt task "
"itt 0x%x\n", task->itt);
/* release ref from prep task */
__iscsi_put_task(task);
}
/* handle running */
list_for_each_entry_safe(task, tmp, &conn->mgmt_run_list, running) {
debug_scsi("flushing running mgmt task itt 0x%x\n", task->itt);
ISCSI_DBG_SESSION(session, "flushing running mgmt task "
"itt 0x%x\n", task->itt);
/* release ref from prep task */
__iscsi_put_task(task);
}
@ -2524,7 +2584,7 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
conn->datadgst_en = 0;
if (session->state == ISCSI_STATE_IN_RECOVERY &&
old_stop_stage != STOP_CONN_RECOVER) {
debug_scsi("blocking session\n");
ISCSI_DBG_SESSION(session, "blocking session\n");
iscsi_block_session(session->cls_session);
}
}

106
drivers/scsi/libiscsi_tcp.c
View File

@ -49,13 +49,21 @@ MODULE_AUTHOR("Mike Christie <michaelc@cs.wisc.edu>, "
"Alex Aizman <itn780@yahoo.com>");
MODULE_DESCRIPTION("iSCSI/TCP data-path");
MODULE_LICENSE("GPL");
#undef DEBUG_TCP
#ifdef DEBUG_TCP
#define debug_tcp(fmt...) printk(KERN_INFO "tcp: " fmt)
#else
#define debug_tcp(fmt...)
#endif
static int iscsi_dbg_libtcp;
module_param_named(debug_libiscsi_tcp, iscsi_dbg_libtcp, int,
S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(debug_libiscsi_tcp, "Turn on debugging for libiscsi_tcp "
"module. Set to 1 to turn on, and zero to turn off. Default "
"is off.");
#define ISCSI_DBG_TCP(_conn, dbg_fmt, arg...) \
do { \
if (iscsi_dbg_libtcp) \
iscsi_conn_printk(KERN_INFO, _conn, \
"%s " dbg_fmt, \
__func__, ##arg); \
} while (0);
static int iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn,
struct iscsi_segment *segment);
@ -123,18 +131,13 @@ static void iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv)
if (page_count(sg_page(sg)) >= 1 && !recv)
return;
debug_tcp("iscsi_tcp_segment_map %s %p\n", recv ? "recv" : "xmit",
segment);
segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
segment->data = segment->sg_mapped + sg->offset + segment->sg_offset;
}
void iscsi_tcp_segment_unmap(struct iscsi_segment *segment)
{
debug_tcp("iscsi_tcp_segment_unmap %p\n", segment);
if (segment->sg_mapped) {
debug_tcp("iscsi_tcp_segment_unmap valid\n");
kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0);
segment->sg_mapped = NULL;
segment->data = NULL;
@ -180,8 +183,9 @@ int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn,
struct scatterlist sg;
unsigned int pad;
debug_tcp("copied %u %u size %u %s\n", segment->copied, copied,
segment->size, recv ? "recv" : "xmit");
ISCSI_DBG_TCP(tcp_conn->iscsi_conn, "copied %u %u size %u %s\n",
segment->copied, copied, segment->size,
recv ? "recv" : "xmit");
if (segment->hash && copied) {
/*
* If a segment is kmapd we must unmap it before sending
@ -214,8 +218,8 @@ int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn,
iscsi_tcp_segment_unmap(segment);
/* Do we have more scatterlist entries? */
debug_tcp("total copied %u total size %u\n", segment->total_copied,
segment->total_size);
ISCSI_DBG_TCP(tcp_conn->iscsi_conn, "total copied %u total size %u\n",
segment->total_copied, segment->total_size);
if (segment->total_copied < segment->total_size) {
/* Proceed to the next entry in the scatterlist. */
iscsi_tcp_segment_init_sg(segment, sg_next(segment->sg),
@ -229,7 +233,8 @@ int iscsi_tcp_segment_done(struct iscsi_tcp_conn *tcp_conn,
if (!(tcp_conn->iscsi_conn->session->tt->caps & CAP_PADDING_OFFLOAD)) {
pad = iscsi_padding(segment->total_copied);
if (pad != 0) {
debug_tcp("consume %d pad bytes\n", pad);
ISCSI_DBG_TCP(tcp_conn->iscsi_conn,
"consume %d pad bytes\n", pad);
segment->total_size += pad;
segment->size = pad;
segment->data = segment->padbuf;
@ -278,13 +283,13 @@ iscsi_tcp_segment_recv(struct iscsi_tcp_conn *tcp_conn,
while (!iscsi_tcp_segment_done(tcp_conn, segment, 1, copy)) {
if (copied == len) {
debug_tcp("iscsi_tcp_segment_recv copied %d bytes\n",
len);
ISCSI_DBG_TCP(tcp_conn->iscsi_conn,
"copied %d bytes\n", len);
break;
}
copy = min(len - copied, segment->size - segment->copied);
debug_tcp("iscsi_tcp_segment_recv copying %d\n", copy);
ISCSI_DBG_TCP(tcp_conn->iscsi_conn, "copying %d\n", copy);
memcpy(segment->data + segment->copied, ptr + copied, copy);
copied += copy;
}
@ -311,7 +316,7 @@ iscsi_tcp_dgst_verify(struct iscsi_tcp_conn *tcp_conn,
if (memcmp(segment->recv_digest, segment->digest,
segment->digest_len)) {
debug_scsi("digest mismatch\n");
ISCSI_DBG_TCP(tcp_conn->iscsi_conn, "digest mismatch\n");
return 0;
}
@ -355,12 +360,8 @@ iscsi_segment_seek_sg(struct iscsi_segment *segment,
struct scatterlist *sg;
unsigned int i;
debug_scsi("iscsi_segment_seek_sg offset %u size %llu\n",
offset, size);
__iscsi_segment_init(segment, size, done, hash);
for_each_sg(sg_list, sg, sg_count, i) {
debug_scsi("sg %d, len %u offset %u\n", i, sg->length,
sg->offset);
if (offset < sg->length) {
iscsi_tcp_segment_init_sg(segment, sg, offset);
return 0;
@ -382,8 +383,9 @@ EXPORT_SYMBOL_GPL(iscsi_segment_seek_sg);
*/
void iscsi_tcp_hdr_recv_prep(struct iscsi_tcp_conn *tcp_conn)
{
debug_tcp("iscsi_tcp_hdr_recv_prep(%p%s)\n", tcp_conn,
tcp_conn->iscsi_conn->hdrdgst_en ? ", digest enabled" : "");
ISCSI_DBG_TCP(tcp_conn->iscsi_conn,
"(%s)\n", tcp_conn->iscsi_conn->hdrdgst_en ?
"digest enabled" : "digest disabled");
iscsi_segment_init_linear(&tcp_conn->in.segment,
tcp_conn->in.hdr_buf, sizeof(struct iscsi_hdr),
iscsi_tcp_hdr_recv_done, NULL);
@ -446,7 +448,7 @@ void iscsi_tcp_cleanup_task(struct iscsi_task *task)
while (__kfifo_get(tcp_task->r2tqueue, (void*)&r2t, sizeof(void*))) {
__kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t,
sizeof(void*));
debug_scsi("iscsi_tcp_cleanup_task pending r2t dropped\n");
ISCSI_DBG_TCP(task->conn, "pending r2t dropped\n");
}
r2t = tcp_task->r2t;
@ -476,8 +478,8 @@ static int iscsi_tcp_data_in(struct iscsi_conn *conn, struct iscsi_task *task)
return 0;
if (tcp_task->exp_datasn != datasn) {
debug_tcp("%s: task->exp_datasn(%d) != rhdr->datasn(%d)\n",
__func__, tcp_task->exp_datasn, datasn);
ISCSI_DBG_TCP(conn, "task->exp_datasn(%d) != rhdr->datasn(%d)"
"\n", tcp_task->exp_datasn, datasn);
return ISCSI_ERR_DATASN;
}
@ -485,8 +487,8 @@ static int iscsi_tcp_data_in(struct iscsi_conn *conn, struct iscsi_task *task)
tcp_task->data_offset = be32_to_cpu(rhdr->offset);
if (tcp_task->data_offset + tcp_conn->in.datalen > total_in_length) {
debug_tcp("%s: data_offset(%d) + data_len(%d) > total_length_in(%d)\n",
__func__, tcp_task->data_offset,
ISCSI_DBG_TCP(conn, "data_offset(%d) + data_len(%d) > "
"total_length_in(%d)\n", tcp_task->data_offset,
tcp_conn->in.datalen, total_in_length);
return ISCSI_ERR_DATA_OFFSET;
}
@ -518,8 +520,8 @@ static int iscsi_tcp_r2t_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
}
if (tcp_task->exp_datasn != r2tsn){
debug_tcp("%s: task->exp_datasn(%d) != rhdr->r2tsn(%d)\n",
__func__, tcp_task->exp_datasn, r2tsn);
ISCSI_DBG_TCP(conn, "task->exp_datasn(%d) != rhdr->r2tsn(%d)\n",
tcp_task->exp_datasn, r2tsn);
return ISCSI_ERR_R2TSN;
}
@ -552,8 +554,8 @@ static int iscsi_tcp_r2t_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
}
if (r2t->data_length > session->max_burst)
debug_scsi("invalid R2T with data len %u and max burst %u."
"Attempting to execute request.\n",
ISCSI_DBG_TCP(conn, "invalid R2T with data len %u and max "
"burst %u. Attempting to execute request.\n",
r2t->data_length, session->max_burst);
r2t->data_offset = be32_to_cpu(rhdr->data_offset);
@ -641,7 +643,7 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
if (rc)
return rc;
debug_tcp("opcode 0x%x ahslen %d datalen %d\n",
ISCSI_DBG_TCP(conn, "opcode 0x%x ahslen %d datalen %d\n",
opcode, ahslen, tcp_conn->in.datalen);
switch(opcode) {
@ -674,8 +676,8 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
!(conn->session->tt->caps & CAP_DIGEST_OFFLOAD))
rx_hash = tcp_conn->rx_hash;
debug_tcp("iscsi_tcp_begin_data_in(%p, offset=%d, "
"datalen=%d)\n", tcp_conn,
ISCSI_DBG_TCP(conn, "iscsi_tcp_begin_data_in( "
"offset=%d, datalen=%d)\n",
tcp_task->data_offset,
tcp_conn->in.datalen);
rc = iscsi_segment_seek_sg(&tcp_conn->in.segment,
@ -854,10 +856,10 @@ int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb,
unsigned int consumed = 0;
int rc = 0;
debug_tcp("in %d bytes\n", skb->len - offset);
ISCSI_DBG_TCP(conn, "in %d bytes\n", skb->len - offset);
if (unlikely(conn->suspend_rx)) {
debug_tcp("conn %d Rx suspended!\n", conn->id);
ISCSI_DBG_TCP(conn, "Rx suspended!\n");
*status = ISCSI_TCP_SUSPENDED;
return 0;
}
@ -874,7 +876,7 @@ int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb,
avail = skb_seq_read(consumed, &ptr, &seq);
if (avail == 0) {
debug_tcp("no more data avail. Consumed %d\n",
ISCSI_DBG_TCP(conn, "no more data avail. Consumed %d\n",
consumed);
*status = ISCSI_TCP_SKB_DONE;
skb_abort_seq_read(&seq);
@ -882,7 +884,8 @@ int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb,
}
BUG_ON(segment->copied >= segment->size);
debug_tcp("skb %p ptr=%p avail=%u\n", skb, ptr, avail);
ISCSI_DBG_TCP(conn, "skb %p ptr=%p avail=%u\n", skb, ptr,
avail);
rc = iscsi_tcp_segment_recv(tcp_conn, segment, ptr, avail);
BUG_ON(rc == 0);
consumed += rc;
@ -895,11 +898,11 @@ int iscsi_tcp_recv_skb(struct iscsi_conn *conn, struct sk_buff *skb,
segment_done:
*status = ISCSI_TCP_SEGMENT_DONE;
debug_tcp("segment done\n");
ISCSI_DBG_TCP(conn, "segment done\n");
rc = segment->done(tcp_conn, segment);
if (rc != 0) {
*status = ISCSI_TCP_CONN_ERR;
debug_tcp("Error receiving PDU, errno=%d\n", rc);
ISCSI_DBG_TCP(conn, "Error receiving PDU, errno=%d\n", rc);
iscsi_conn_failure(conn, rc);
return 0;
}
@ -929,8 +932,7 @@ int iscsi_tcp_task_init(struct iscsi_task *task)
* mgmt tasks do not have a scatterlist since they come
* in from the iscsi interface.
*/
debug_scsi("mtask deq [cid %d itt 0x%x]\n", conn->id,
task->itt);
ISCSI_DBG_TCP(conn, "mtask deq [itt 0x%x]\n", task->itt);
return conn->session->tt->init_pdu(task, 0, task->data_count);
}
@ -939,9 +941,8 @@ int iscsi_tcp_task_init(struct iscsi_task *task)
tcp_task->exp_datasn = 0;
/* Prepare PDU, optionally w/ immediate data */
debug_scsi("task deq [cid %d itt 0x%x imm %d unsol %d]\n",
conn->id, task->itt, task->imm_count,
task->unsol_r2t.data_length);
ISCSI_DBG_TCP(conn, "task deq [itt 0x%x imm %d unsol %d]\n",
task->itt, task->imm_count, task->unsol_r2t.data_length);
err = conn->session->tt->init_pdu(task, 0, task->imm_count);
if (err)
@ -965,7 +966,8 @@ static struct iscsi_r2t_info *iscsi_tcp_get_curr_r2t(struct iscsi_task *task)
r2t = tcp_task->r2t;
/* Continue with this R2T? */
if (r2t->data_length <= r2t->sent) {
debug_scsi(" done with r2t %p\n", r2t);
ISCSI_DBG_TCP(task->conn,
" done with r2t %p\n", r2t);
__kfifo_put(tcp_task->r2tpool.queue,
(void *)&tcp_task->r2t,
sizeof(void *));
@ -1019,7 +1021,7 @@ int iscsi_tcp_task_xmit(struct iscsi_task *task)
r2t = iscsi_tcp_get_curr_r2t(task);
if (r2t == NULL) {
/* Waiting for more R2Ts to arrive. */
debug_tcp("no R2Ts yet\n");
ISCSI_DBG_TCP(conn, "no R2Ts yet\n");
return 0;
}
@ -1028,7 +1030,7 @@ int iscsi_tcp_task_xmit(struct iscsi_task *task)
return rc;
iscsi_prep_data_out_pdu(task, r2t, (struct iscsi_data *) task->hdr);
debug_scsi("sol dout %p [dsn %d itt 0x%x doff %d dlen %d]\n",
ISCSI_DBG_TCP(conn, "sol dout %p [dsn %d itt 0x%x doff %d dlen %d]\n",
r2t, r2t->datasn - 1, task->hdr->itt,
r2t->data_offset + r2t->sent, r2t->data_count);

16
drivers/scsi/lpfc/lpfc_debugfs.c
View File

@ -1132,7 +1132,7 @@ lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
}
#undef lpfc_debugfs_op_disc_trc
static struct file_operations lpfc_debugfs_op_disc_trc = {
static const struct file_operations lpfc_debugfs_op_disc_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_disc_trc_open,
.llseek = lpfc_debugfs_lseek,
@ -1141,7 +1141,7 @@ static struct file_operations lpfc_debugfs_op_disc_trc = {
};
#undef lpfc_debugfs_op_nodelist
static struct file_operations lpfc_debugfs_op_nodelist = {
static const struct file_operations lpfc_debugfs_op_nodelist = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_nodelist_open,
.llseek = lpfc_debugfs_lseek,
@ -1150,7 +1150,7 @@ static struct file_operations lpfc_debugfs_op_nodelist = {
};
#undef lpfc_debugfs_op_hbqinfo
static struct file_operations lpfc_debugfs_op_hbqinfo = {
static const struct file_operations lpfc_debugfs_op_hbqinfo = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_hbqinfo_open,
.llseek = lpfc_debugfs_lseek,
@ -1159,7 +1159,7 @@ static struct file_operations lpfc_debugfs_op_hbqinfo = {
};
#undef lpfc_debugfs_op_dumpHBASlim
static struct file_operations lpfc_debugfs_op_dumpHBASlim = {
static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dumpHBASlim_open,
.llseek = lpfc_debugfs_lseek,
@ -1168,7 +1168,7 @@ static struct file_operations lpfc_debugfs_op_dumpHBASlim = {
};
#undef lpfc_debugfs_op_dumpHostSlim
static struct file_operations lpfc_debugfs_op_dumpHostSlim = {
static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dumpHostSlim_open,
.llseek = lpfc_debugfs_lseek,
@ -1177,7 +1177,7 @@ static struct file_operations lpfc_debugfs_op_dumpHostSlim = {
};
#undef lpfc_debugfs_op_dumpData
static struct file_operations lpfc_debugfs_op_dumpData = {
static const struct file_operations lpfc_debugfs_op_dumpData = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dumpData_open,
.llseek = lpfc_debugfs_lseek,
@ -1187,7 +1187,7 @@ static struct file_operations lpfc_debugfs_op_dumpData = {
};
#undef lpfc_debugfs_op_dumpDif
static struct file_operations lpfc_debugfs_op_dumpDif = {
static const struct file_operations lpfc_debugfs_op_dumpDif = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_dumpDif_open,
.llseek = lpfc_debugfs_lseek,
@ -1197,7 +1197,7 @@ static struct file_operations lpfc_debugfs_op_dumpDif = {
};
#undef lpfc_debugfs_op_slow_ring_trc
static struct file_operations lpfc_debugfs_op_slow_ring_trc = {
static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
.owner = THIS_MODULE,
.open = lpfc_debugfs_slow_ring_trc_open,
.llseek = lpfc_debugfs_lseek,

6
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -1357,7 +1357,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
0x10, 0x1);
cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
cmd->result = DRIVER_SENSE << 24
| ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
phba->bg_guard_err_cnt++;
printk(KERN_ERR "BLKGRD: guard_tag error\n");
@ -1368,7 +1368,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
0x10, 0x3);
cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
cmd->result = DRIVER_SENSE << 24
| ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
phba->bg_reftag_err_cnt++;
@ -1380,7 +1380,7 @@ lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
0x10, 0x2);
cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
cmd->result = DRIVER_SENSE << 24
| ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
phba->bg_apptag_err_cnt++;

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#
# Kernel configuration file for the MPT2SAS
#
# This code is based on drivers/scsi/mpt2sas/Kconfig
# Copyright (C) 2007-2008 LSI Corporation
# (mailto:DL-MPTFusionLinux@lsi.com)
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# NO WARRANTY
# THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
# CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
# LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
# solely responsible for determining the appropriateness of using and
# distributing the Program and assumes all risks associated with its
# exercise of rights under this Agreement, including but not limited to
# the risks and costs of program errors, damage to or loss of data,
# programs or equipment, and unavailability or interruption of operations.
# DISCLAIMER OF LIABILITY
# NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
# HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
config SCSI_MPT2SAS
tristate "LSI MPT Fusion SAS 2.0 Device Driver"
depends on PCI && SCSI
select SCSI_SAS_ATTRS
---help---
This driver supports PCI-Express SAS 6Gb/s Host Adapters.
config SCSI_MPT2SAS_MAX_SGE
int "LSI MPT Fusion Max number of SG Entries (16 - 128)"
depends on PCI && SCSI && SCSI_MPT2SAS
default "128"
range 16 128
---help---
This option allows you to specify the maximum number of scatter-
gather entries per I/O. The driver default is 128, which matches
SAFE_PHYS_SEGMENTS. However, it may decreased down to 16.
Decreasing this parameter will reduce memory requirements
on a per controller instance.
config SCSI_MPT2SAS_LOGGING
bool "LSI MPT Fusion logging facility"
depends on PCI && SCSI && SCSI_MPT2SAS
---help---
This turns on a logging facility.

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# mpt2sas makefile
obj-$(CONFIG_SCSI_MPT2SAS) += mpt2sas.o
mpt2sas-y += mpt2sas_base.o \
mpt2sas_config.o \
mpt2sas_scsih.o \
mpt2sas_transport.o \
mpt2sas_ctl.o

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/*
* Copyright (c) 2000-2008 LSI Corporation.
*
*
* Name: mpi2_init.h
* Title: MPI SCSI initiator mode messages and structures
* Creation Date: June 23, 2006
*
* mpi2_init.h Version: 02.00.06
*
* Version History
* ---------------
*
* Date Version Description
* -------- -------- ------------------------------------------------------
* 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
* 10-31-07 02.00.01 Fixed name for pMpi2SCSITaskManagementRequest_t.
* 12-18-07 02.00.02 Modified Task Management Target Reset Method defines.
* 02-29-08 02.00.03 Added Query Task Set and Query Unit Attention.
* 03-03-08 02.00.04 Fixed name of struct _MPI2_SCSI_TASK_MANAGE_REPLY.
* 05-21-08 02.00.05 Fixed typo in name of Mpi2SepRequest_t.
* 10-02-08 02.00.06 Removed Untagged and No Disconnect values from SCSI IO
* Control field Task Attribute flags.
* Moved LUN field defines to mpi2.h becasue they are
* common to many structures.
* --------------------------------------------------------------------------
*/
#ifndef MPI2_INIT_H
#define MPI2_INIT_H
/*****************************************************************************
*
* SCSI Initiator Messages
*
*****************************************************************************/
/****************************************************************************
* SCSI IO messages and associated structures
****************************************************************************/
typedef struct
{
U8 CDB[20]; /* 0x00 */
U32 PrimaryReferenceTag; /* 0x14 */
U16 PrimaryApplicationTag; /* 0x18 */
U16 PrimaryApplicationTagMask; /* 0x1A */
U32 TransferLength; /* 0x1C */
} MPI2_SCSI_IO_CDB_EEDP32, MPI2_POINTER PTR_MPI2_SCSI_IO_CDB_EEDP32,
Mpi2ScsiIoCdbEedp32_t, MPI2_POINTER pMpi2ScsiIoCdbEedp32_t;
/* TBD: I don't think this is needed for MPI2/Gen2 */
#if 0
typedef struct
{
U8 CDB[16]; /* 0x00 */
U32 DataLength; /* 0x10 */
U32 PrimaryReferenceTag; /* 0x14 */
U16 PrimaryApplicationTag; /* 0x18 */
U16 PrimaryApplicationTagMask; /* 0x1A */
U32 TransferLength; /* 0x1C */
} MPI2_SCSI_IO32_CDB_EEDP16, MPI2_POINTER PTR_MPI2_SCSI_IO32_CDB_EEDP16,
Mpi2ScsiIo32CdbEedp16_t, MPI2_POINTER pMpi2ScsiIo32CdbEedp16_t;
#endif
typedef union
{
U8 CDB32[32];
MPI2_SCSI_IO_CDB_EEDP32 EEDP32;
MPI2_SGE_SIMPLE_UNION SGE;
} MPI2_SCSI_IO_CDB_UNION, MPI2_POINTER PTR_MPI2_SCSI_IO_CDB_UNION,
Mpi2ScsiIoCdb_t, MPI2_POINTER pMpi2ScsiIoCdb_t;
/* SCSI IO Request Message */
typedef struct _MPI2_SCSI_IO_REQUEST
{
U16 DevHandle; /* 0x00 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved1; /* 0x04 */
U8 Reserved2; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved3; /* 0x0A */
U32 SenseBufferLowAddress; /* 0x0C */
U16 SGLFlags; /* 0x10 */
U8 SenseBufferLength; /* 0x12 */
U8 Reserved4; /* 0x13 */
U8 SGLOffset0; /* 0x14 */
U8 SGLOffset1; /* 0x15 */
U8 SGLOffset2; /* 0x16 */
U8 SGLOffset3; /* 0x17 */
U32 SkipCount; /* 0x18 */
U32 DataLength; /* 0x1C */
U32 BidirectionalDataLength; /* 0x20 */
U16 IoFlags; /* 0x24 */
U16 EEDPFlags; /* 0x26 */
U32 EEDPBlockSize; /* 0x28 */
U32 SecondaryReferenceTag; /* 0x2C */
U16 SecondaryApplicationTag; /* 0x30 */
U16 ApplicationTagTranslationMask; /* 0x32 */
U8 LUN[8]; /* 0x34 */
U32 Control; /* 0x3C */
MPI2_SCSI_IO_CDB_UNION CDB; /* 0x40 */
MPI2_SGE_IO_UNION SGL; /* 0x60 */
} MPI2_SCSI_IO_REQUEST, MPI2_POINTER PTR_MPI2_SCSI_IO_REQUEST,
Mpi2SCSIIORequest_t, MPI2_POINTER pMpi2SCSIIORequest_t;
/* SCSI IO MsgFlags bits */
/* MsgFlags for SenseBufferAddressSpace */
#define MPI2_SCSIIO_MSGFLAGS_MASK_SENSE_ADDR (0x0C)
#define MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR (0x00)
#define MPI2_SCSIIO_MSGFLAGS_IOCDDR_SENSE_ADDR (0x04)
#define MPI2_SCSIIO_MSGFLAGS_IOCPLB_SENSE_ADDR (0x08)
#define MPI2_SCSIIO_MSGFLAGS_IOCPLBNTA_SENSE_ADDR (0x0C)
/* SCSI IO SGLFlags bits */
/* base values for Data Location Address Space */
#define MPI2_SCSIIO_SGLFLAGS_ADDR_MASK (0x0C)
#define MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR (0x00)
#define MPI2_SCSIIO_SGLFLAGS_IOCDDR_ADDR (0x04)
#define MPI2_SCSIIO_SGLFLAGS_IOCPLB_ADDR (0x08)
#define MPI2_SCSIIO_SGLFLAGS_IOCPLBNTA_ADDR (0x0C)
/* base values for Type */
#define MPI2_SCSIIO_SGLFLAGS_TYPE_MASK (0x03)
#define MPI2_SCSIIO_SGLFLAGS_TYPE_MPI (0x00)
#define MPI2_SCSIIO_SGLFLAGS_TYPE_IEEE32 (0x01)
#define MPI2_SCSIIO_SGLFLAGS_TYPE_IEEE64 (0x02)
/* shift values for each sub-field */
#define MPI2_SCSIIO_SGLFLAGS_SGL3_SHIFT (12)
#define MPI2_SCSIIO_SGLFLAGS_SGL2_SHIFT (8)
#define MPI2_SCSIIO_SGLFLAGS_SGL1_SHIFT (4)
#define MPI2_SCSIIO_SGLFLAGS_SGL0_SHIFT (0)
/* SCSI IO IoFlags bits */
/* Large CDB Address Space */
#define MPI2_SCSIIO_CDB_ADDR_MASK (0x6000)
#define MPI2_SCSIIO_CDB_ADDR_SYSTEM (0x0000)
#define MPI2_SCSIIO_CDB_ADDR_IOCDDR (0x2000)
#define MPI2_SCSIIO_CDB_ADDR_IOCPLB (0x4000)
#define MPI2_SCSIIO_CDB_ADDR_IOCPLBNTA (0x6000)
#define MPI2_SCSIIO_IOFLAGS_LARGE_CDB (0x1000)
#define MPI2_SCSIIO_IOFLAGS_BIDIRECTIONAL (0x0800)
#define MPI2_SCSIIO_IOFLAGS_MULTICAST (0x0400)
#define MPI2_SCSIIO_IOFLAGS_CMD_DETERMINES_DATA_DIR (0x0200)
#define MPI2_SCSIIO_IOFLAGS_CDBLENGTH_MASK (0x01FF)
/* SCSI IO EEDPFlags bits */
#define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG (0x8000)
#define MPI2_SCSIIO_EEDPFLAGS_INC_SEC_REFTAG (0x4000)
#define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_APPTAG (0x2000)
#define MPI2_SCSIIO_EEDPFLAGS_INC_SEC_APPTAG (0x1000)
#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG (0x0400)
#define MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG (0x0200)
#define MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD (0x0100)
#define MPI2_SCSIIO_EEDPFLAGS_PASSTHRU_REFTAG (0x0008)
#define MPI2_SCSIIO_EEDPFLAGS_MASK_OP (0x0007)
#define MPI2_SCSIIO_EEDPFLAGS_NOOP_OP (0x0000)
#define MPI2_SCSIIO_EEDPFLAGS_CHECK_OP (0x0001)
#define MPI2_SCSIIO_EEDPFLAGS_STRIP_OP (0x0002)
#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP (0x0003)
#define MPI2_SCSIIO_EEDPFLAGS_INSERT_OP (0x0004)
#define MPI2_SCSIIO_EEDPFLAGS_REPLACE_OP (0x0006)
#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REGEN_OP (0x0007)
/* SCSI IO LUN fields: use MPI2_LUN_ from mpi2.h */
/* SCSI IO Control bits */
#define MPI2_SCSIIO_CONTROL_ADDCDBLEN_MASK (0xFC000000)
#define MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT (26)
#define MPI2_SCSIIO_CONTROL_DATADIRECTION_MASK (0x03000000)
#define MPI2_SCSIIO_CONTROL_NODATATRANSFER (0x00000000)
#define MPI2_SCSIIO_CONTROL_WRITE (0x01000000)
#define MPI2_SCSIIO_CONTROL_READ (0x02000000)
#define MPI2_SCSIIO_CONTROL_BIDIRECTIONAL (0x03000000)
#define MPI2_SCSIIO_CONTROL_TASKPRI_MASK (0x00007800)
#define MPI2_SCSIIO_CONTROL_TASKPRI_SHIFT (11)
#define MPI2_SCSIIO_CONTROL_TASKATTRIBUTE_MASK (0x00000700)
#define MPI2_SCSIIO_CONTROL_SIMPLEQ (0x00000000)
#define MPI2_SCSIIO_CONTROL_HEADOFQ (0x00000100)
#define MPI2_SCSIIO_CONTROL_ORDEREDQ (0x00000200)
#define MPI2_SCSIIO_CONTROL_ACAQ (0x00000400)
#define MPI2_SCSIIO_CONTROL_TLR_MASK (0x000000C0)
#define MPI2_SCSIIO_CONTROL_NO_TLR (0x00000000)
#define MPI2_SCSIIO_CONTROL_TLR_ON (0x00000040)
#define MPI2_SCSIIO_CONTROL_TLR_OFF (0x00000080)
/* SCSI IO Error Reply Message */
typedef struct _MPI2_SCSI_IO_REPLY
{
U16 DevHandle; /* 0x00 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved1; /* 0x04 */
U8 Reserved2; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved3; /* 0x0A */
U8 SCSIStatus; /* 0x0C */
U8 SCSIState; /* 0x0D */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
U32 TransferCount; /* 0x14 */
U32 SenseCount; /* 0x18 */
U32 ResponseInfo; /* 0x1C */
U16 TaskTag; /* 0x20 */
U16 Reserved4; /* 0x22 */
U32 BidirectionalTransferCount; /* 0x24 */
U32 Reserved5; /* 0x28 */
U32 Reserved6; /* 0x2C */
} MPI2_SCSI_IO_REPLY, MPI2_POINTER PTR_MPI2_SCSI_IO_REPLY,
Mpi2SCSIIOReply_t, MPI2_POINTER pMpi2SCSIIOReply_t;
/* SCSI IO Reply SCSIStatus values (SAM-4 status codes) */
#define MPI2_SCSI_STATUS_GOOD (0x00)
#define MPI2_SCSI_STATUS_CHECK_CONDITION (0x02)
#define MPI2_SCSI_STATUS_CONDITION_MET (0x04)
#define MPI2_SCSI_STATUS_BUSY (0x08)
#define MPI2_SCSI_STATUS_INTERMEDIATE (0x10)
#define MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET (0x14)
#define MPI2_SCSI_STATUS_RESERVATION_CONFLICT (0x18)
#define MPI2_SCSI_STATUS_COMMAND_TERMINATED (0x22) /* obsolete */
#define MPI2_SCSI_STATUS_TASK_SET_FULL (0x28)
#define MPI2_SCSI_STATUS_ACA_ACTIVE (0x30)
#define MPI2_SCSI_STATUS_TASK_ABORTED (0x40)
/* SCSI IO Reply SCSIState flags */
#define MPI2_SCSI_STATE_RESPONSE_INFO_VALID (0x10)
#define MPI2_SCSI_STATE_TERMINATED (0x08)
#define MPI2_SCSI_STATE_NO_SCSI_STATUS (0x04)
#define MPI2_SCSI_STATE_AUTOSENSE_FAILED (0x02)
#define MPI2_SCSI_STATE_AUTOSENSE_VALID (0x01)
#define MPI2_SCSI_TASKTAG_UNKNOWN (0xFFFF)
/****************************************************************************
* SCSI Task Management messages
****************************************************************************/
/* SCSI Task Management Request Message */
typedef struct _MPI2_SCSI_TASK_MANAGE_REQUEST
{
U16 DevHandle; /* 0x00 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U8 Reserved1; /* 0x04 */
U8 TaskType; /* 0x05 */
U8 Reserved2; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved3; /* 0x0A */
U8 LUN[8]; /* 0x0C */
U32 Reserved4[7]; /* 0x14 */
U16 TaskMID; /* 0x30 */
U16 Reserved5; /* 0x32 */
} MPI2_SCSI_TASK_MANAGE_REQUEST,
MPI2_POINTER PTR_MPI2_SCSI_TASK_MANAGE_REQUEST,
Mpi2SCSITaskManagementRequest_t,
MPI2_POINTER pMpi2SCSITaskManagementRequest_t;
/* TaskType values */
#define MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK (0x01)
#define MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET (0x02)
#define MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET (0x03)
#define MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET (0x05)
#define MPI2_SCSITASKMGMT_TASKTYPE_CLEAR_TASK_SET (0x06)
#define MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK (0x07)
#define MPI2_SCSITASKMGMT_TASKTYPE_CLR_ACA (0x08)
#define MPI2_SCSITASKMGMT_TASKTYPE_QRY_TASK_SET (0x09)
#define MPI2_SCSITASKMGMT_TASKTYPE_QRY_UNIT_ATTENTION (0x0A)
/* MsgFlags bits */
#define MPI2_SCSITASKMGMT_MSGFLAGS_MASK_TARGET_RESET (0x18)
#define MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET (0x00)
#define MPI2_SCSITASKMGMT_MSGFLAGS_NEXUS_RESET_SRST (0x08)
#define MPI2_SCSITASKMGMT_MSGFLAGS_SAS_HARD_LINK_RESET (0x10)
#define MPI2_SCSITASKMGMT_MSGFLAGS_DO_NOT_SEND_TASK_IU (0x01)
/* SCSI Task Management Reply Message */
typedef struct _MPI2_SCSI_TASK_MANAGE_REPLY
{
U16 DevHandle; /* 0x00 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U8 ResponseCode; /* 0x04 */
U8 TaskType; /* 0x05 */
U8 Reserved1; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved2; /* 0x0A */
U16 Reserved3; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
U32 TerminationCount; /* 0x14 */
} MPI2_SCSI_TASK_MANAGE_REPLY,
MPI2_POINTER PTR_MPI2_SCSI_TASK_MANAGE_REPLY,
Mpi2SCSITaskManagementReply_t, MPI2_POINTER pMpi2SCSIManagementReply_t;
/* ResponseCode values */
#define MPI2_SCSITASKMGMT_RSP_TM_COMPLETE (0x00)
#define MPI2_SCSITASKMGMT_RSP_INVALID_FRAME (0x02)
#define MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED (0x04)
#define MPI2_SCSITASKMGMT_RSP_TM_FAILED (0x05)
#define MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED (0x08)
#define MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN (0x09)
#define MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC (0x80)
/****************************************************************************
* SCSI Enclosure Processor messages
****************************************************************************/
/* SCSI Enclosure Processor Request Message */
typedef struct _MPI2_SEP_REQUEST
{
U16 DevHandle; /* 0x00 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U8 Action; /* 0x04 */
U8 Flags; /* 0x05 */
U8 Reserved1; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved2; /* 0x0A */
U32 SlotStatus; /* 0x0C */
U32 Reserved3; /* 0x10 */
U32 Reserved4; /* 0x14 */
U32 Reserved5; /* 0x18 */
U16 Slot; /* 0x1C */
U16 EnclosureHandle; /* 0x1E */
} MPI2_SEP_REQUEST, MPI2_POINTER PTR_MPI2_SEP_REQUEST,
Mpi2SepRequest_t, MPI2_POINTER pMpi2SepRequest_t;
/* Action defines */
#define MPI2_SEP_REQ_ACTION_WRITE_STATUS (0x00)
#define MPI2_SEP_REQ_ACTION_READ_STATUS (0x01)
/* Flags defines */
#define MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS (0x00)
#define MPI2_SEP_REQ_FLAGS_ENCLOSURE_SLOT_ADDRESS (0x01)
/* SlotStatus defines */
#define MPI2_SEP_REQ_SLOTSTATUS_REQUEST_REMOVE (0x00040000)
#define MPI2_SEP_REQ_SLOTSTATUS_IDENTIFY_REQUEST (0x00020000)
#define MPI2_SEP_REQ_SLOTSTATUS_REBUILD_STOPPED (0x00000200)
#define MPI2_SEP_REQ_SLOTSTATUS_HOT_SPARE (0x00000100)
#define MPI2_SEP_REQ_SLOTSTATUS_UNCONFIGURED (0x00000080)
#define MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT (0x00000040)
#define MPI2_SEP_REQ_SLOTSTATUS_DEV_REBUILDING (0x00000004)
#define MPI2_SEP_REQ_SLOTSTATUS_DEV_FAULTY (0x00000002)
#define MPI2_SEP_REQ_SLOTSTATUS_NO_ERROR (0x00000001)
/* SCSI Enclosure Processor Reply Message */
typedef struct _MPI2_SEP_REPLY
{
U16 DevHandle; /* 0x00 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U8 Action; /* 0x04 */
U8 Flags; /* 0x05 */
U8 Reserved1; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved2; /* 0x0A */
U16 Reserved3; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
U32 SlotStatus; /* 0x14 */
U32 Reserved4; /* 0x18 */
U16 Slot; /* 0x1C */
U16 EnclosureHandle; /* 0x1E */
} MPI2_SEP_REPLY, MPI2_POINTER PTR_MPI2_SEP_REPLY,
Mpi2SepReply_t, MPI2_POINTER pMpi2SepReply_t;
/* SlotStatus defines */
#define MPI2_SEP_REPLY_SLOTSTATUS_REMOVE_READY (0x00040000)
#define MPI2_SEP_REPLY_SLOTSTATUS_IDENTIFY_REQUEST (0x00020000)
#define MPI2_SEP_REPLY_SLOTSTATUS_REBUILD_STOPPED (0x00000200)
#define MPI2_SEP_REPLY_SLOTSTATUS_HOT_SPARE (0x00000100)
#define MPI2_SEP_REPLY_SLOTSTATUS_UNCONFIGURED (0x00000080)
#define MPI2_SEP_REPLY_SLOTSTATUS_PREDICTED_FAULT (0x00000040)
#define MPI2_SEP_REPLY_SLOTSTATUS_DEV_REBUILDING (0x00000004)
#define MPI2_SEP_REPLY_SLOTSTATUS_DEV_FAULTY (0x00000002)
#define MPI2_SEP_REPLY_SLOTSTATUS_NO_ERROR (0x00000001)
#endif

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/*
* Copyright (c) 2000-2008 LSI Corporation.
*
*
* Name: mpi2_raid.h
* Title: MPI Integrated RAID messages and structures
* Creation Date: April 26, 2007
*
* mpi2_raid.h Version: 02.00.03
*
* Version History
* ---------------
*
* Date Version Description
* -------- -------- ------------------------------------------------------
* 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
* 08-31-07 02.00.01 Modifications to RAID Action request and reply,
* including the Actions and ActionData.
* 02-29-08 02.00.02 Added MPI2_RAID_ACTION_ADATA_DISABL_FULL_REBUILD.
* 05-21-08 02.00.03 Added MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS so that
* the PhysDisk array in MPI2_RAID_VOLUME_CREATION_STRUCT
* can be sized by the build environment.
* --------------------------------------------------------------------------
*/
#ifndef MPI2_RAID_H
#define MPI2_RAID_H
/*****************************************************************************
*
* Integrated RAID Messages
*
*****************************************************************************/
/****************************************************************************
* RAID Action messages
****************************************************************************/
/* ActionDataWord defines for use with MPI2_RAID_ACTION_DELETE_VOLUME action */
#define MPI2_RAID_ACTION_ADATA_KEEP_LBA0 (0x00000000)
#define MPI2_RAID_ACTION_ADATA_ZERO_LBA0 (0x00000001)
/* use MPI2_RAIDVOL0_SETTING_ defines from mpi2_cnfg.h for MPI2_RAID_ACTION_CHANGE_VOL_WRITE_CACHE action */
/* ActionDataWord defines for use with MPI2_RAID_ACTION_DISABLE_ALL_VOLUMES action */
#define MPI2_RAID_ACTION_ADATA_DISABL_FULL_REBUILD (0x00000001)
/* ActionDataWord for MPI2_RAID_ACTION_SET_RAID_FUNCTION_RATE Action */
typedef struct _MPI2_RAID_ACTION_RATE_DATA
{
U8 RateToChange; /* 0x00 */
U8 RateOrMode; /* 0x01 */
U16 DataScrubDuration; /* 0x02 */
} MPI2_RAID_ACTION_RATE_DATA, MPI2_POINTER PTR_MPI2_RAID_ACTION_RATE_DATA,
Mpi2RaidActionRateData_t, MPI2_POINTER pMpi2RaidActionRateData_t;
#define MPI2_RAID_ACTION_SET_RATE_RESYNC (0x00)
#define MPI2_RAID_ACTION_SET_RATE_DATA_SCRUB (0x01)
#define MPI2_RAID_ACTION_SET_RATE_POWERSAVE_MODE (0x02)
/* ActionDataWord for MPI2_RAID_ACTION_START_RAID_FUNCTION Action */
typedef struct _MPI2_RAID_ACTION_START_RAID_FUNCTION
{
U8 RAIDFunction; /* 0x00 */
U8 Flags; /* 0x01 */
U16 Reserved1; /* 0x02 */
} MPI2_RAID_ACTION_START_RAID_FUNCTION,
MPI2_POINTER PTR_MPI2_RAID_ACTION_START_RAID_FUNCTION,
Mpi2RaidActionStartRaidFunction_t,
MPI2_POINTER pMpi2RaidActionStartRaidFunction_t;
/* defines for the RAIDFunction field */
#define MPI2_RAID_ACTION_START_BACKGROUND_INIT (0x00)
#define MPI2_RAID_ACTION_START_ONLINE_CAP_EXPANSION (0x01)
#define MPI2_RAID_ACTION_START_CONSISTENCY_CHECK (0x02)
/* defines for the Flags field */
#define MPI2_RAID_ACTION_START_NEW (0x00)
#define MPI2_RAID_ACTION_START_RESUME (0x01)
/* ActionDataWord for MPI2_RAID_ACTION_STOP_RAID_FUNCTION Action */
typedef struct _MPI2_RAID_ACTION_STOP_RAID_FUNCTION
{
U8 RAIDFunction; /* 0x00 */
U8 Flags; /* 0x01 */
U16 Reserved1; /* 0x02 */
} MPI2_RAID_ACTION_STOP_RAID_FUNCTION,
MPI2_POINTER PTR_MPI2_RAID_ACTION_STOP_RAID_FUNCTION,
Mpi2RaidActionStopRaidFunction_t,
MPI2_POINTER pMpi2RaidActionStopRaidFunction_t;
/* defines for the RAIDFunction field */
#define MPI2_RAID_ACTION_STOP_BACKGROUND_INIT (0x00)
#define MPI2_RAID_ACTION_STOP_ONLINE_CAP_EXPANSION (0x01)
#define MPI2_RAID_ACTION_STOP_CONSISTENCY_CHECK (0x02)
/* defines for the Flags field */
#define MPI2_RAID_ACTION_STOP_ABORT (0x00)
#define MPI2_RAID_ACTION_STOP_PAUSE (0x01)
/* ActionDataWord for MPI2_RAID_ACTION_CREATE_HOT_SPARE Action */
typedef struct _MPI2_RAID_ACTION_HOT_SPARE
{
U8 HotSparePool; /* 0x00 */
U8 Reserved1; /* 0x01 */
U16 DevHandle; /* 0x02 */
} MPI2_RAID_ACTION_HOT_SPARE, MPI2_POINTER PTR_MPI2_RAID_ACTION_HOT_SPARE,
Mpi2RaidActionHotSpare_t, MPI2_POINTER pMpi2RaidActionHotSpare_t;
/* ActionDataWord for MPI2_RAID_ACTION_DEVICE_FW_UPDATE_MODE Action */
typedef struct _MPI2_RAID_ACTION_FW_UPDATE_MODE
{
U8 Flags; /* 0x00 */
U8 DeviceFirmwareUpdateModeTimeout; /* 0x01 */
U16 Reserved1; /* 0x02 */
} MPI2_RAID_ACTION_FW_UPDATE_MODE,
MPI2_POINTER PTR_MPI2_RAID_ACTION_FW_UPDATE_MODE,
Mpi2RaidActionFwUpdateMode_t, MPI2_POINTER pMpi2RaidActionFwUpdateMode_t;
/* ActionDataWord defines for use with MPI2_RAID_ACTION_DEVICE_FW_UPDATE_MODE action */
#define MPI2_RAID_ACTION_ADATA_DISABLE_FW_UPDATE (0x00)
#define MPI2_RAID_ACTION_ADATA_ENABLE_FW_UPDATE (0x01)
typedef union _MPI2_RAID_ACTION_DATA
{
U32 Word;
MPI2_RAID_ACTION_RATE_DATA Rates;
MPI2_RAID_ACTION_START_RAID_FUNCTION StartRaidFunction;
MPI2_RAID_ACTION_STOP_RAID_FUNCTION StopRaidFunction;
MPI2_RAID_ACTION_HOT_SPARE HotSpare;
MPI2_RAID_ACTION_FW_UPDATE_MODE FwUpdateMode;
} MPI2_RAID_ACTION_DATA, MPI2_POINTER PTR_MPI2_RAID_ACTION_DATA,
Mpi2RaidActionData_t, MPI2_POINTER pMpi2RaidActionData_t;
/* RAID Action Request Message */
typedef struct _MPI2_RAID_ACTION_REQUEST
{
U8 Action; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 VolDevHandle; /* 0x04 */
U8 PhysDiskNum; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved2; /* 0x0A */
U32 Reserved3; /* 0x0C */
MPI2_RAID_ACTION_DATA ActionDataWord; /* 0x10 */
MPI2_SGE_SIMPLE_UNION ActionDataSGE; /* 0x14 */
} MPI2_RAID_ACTION_REQUEST, MPI2_POINTER PTR_MPI2_RAID_ACTION_REQUEST,
Mpi2RaidActionRequest_t, MPI2_POINTER pMpi2RaidActionRequest_t;
/* RAID Action request Action values */
#define MPI2_RAID_ACTION_INDICATOR_STRUCT (0x01)
#define MPI2_RAID_ACTION_CREATE_VOLUME (0x02)
#define MPI2_RAID_ACTION_DELETE_VOLUME (0x03)
#define MPI2_RAID_ACTION_DISABLE_ALL_VOLUMES (0x04)
#define MPI2_RAID_ACTION_ENABLE_ALL_VOLUMES (0x05)
#define MPI2_RAID_ACTION_PHYSDISK_OFFLINE (0x0A)
#define MPI2_RAID_ACTION_PHYSDISK_ONLINE (0x0B)
#define MPI2_RAID_ACTION_FAIL_PHYSDISK (0x0F)
#define MPI2_RAID_ACTION_ACTIVATE_VOLUME (0x11)
#define MPI2_RAID_ACTION_DEVICE_FW_UPDATE_MODE (0x15)
#define MPI2_RAID_ACTION_CHANGE_VOL_WRITE_CACHE (0x17)
#define MPI2_RAID_ACTION_SET_VOLUME_NAME (0x18)
#define MPI2_RAID_ACTION_SET_RAID_FUNCTION_RATE (0x19)
#define MPI2_RAID_ACTION_ENABLE_FAILED_VOLUME (0x1C)
#define MPI2_RAID_ACTION_CREATE_HOT_SPARE (0x1D)
#define MPI2_RAID_ACTION_DELETE_HOT_SPARE (0x1E)
#define MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED (0x20)
#define MPI2_RAID_ACTION_START_RAID_FUNCTION (0x21)
#define MPI2_RAID_ACTION_STOP_RAID_FUNCTION (0x22)
/* RAID Volume Creation Structure */
/*
* The following define can be customized for the targeted product.
*/
#ifndef MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS
#define MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS (1)
#endif
typedef struct _MPI2_RAID_VOLUME_PHYSDISK
{
U8 RAIDSetNum; /* 0x00 */
U8 PhysDiskMap; /* 0x01 */
U16 PhysDiskDevHandle; /* 0x02 */
} MPI2_RAID_VOLUME_PHYSDISK, MPI2_POINTER PTR_MPI2_RAID_VOLUME_PHYSDISK,
Mpi2RaidVolumePhysDisk_t, MPI2_POINTER pMpi2RaidVolumePhysDisk_t;
/* defines for the PhysDiskMap field */
#define MPI2_RAIDACTION_PHYSDISK_PRIMARY (0x01)
#define MPI2_RAIDACTION_PHYSDISK_SECONDARY (0x02)
typedef struct _MPI2_RAID_VOLUME_CREATION_STRUCT
{
U8 NumPhysDisks; /* 0x00 */
U8 VolumeType; /* 0x01 */
U16 Reserved1; /* 0x02 */
U32 VolumeCreationFlags; /* 0x04 */
U32 VolumeSettings; /* 0x08 */
U8 Reserved2; /* 0x0C */
U8 ResyncRate; /* 0x0D */
U16 DataScrubDuration; /* 0x0E */
U64 VolumeMaxLBA; /* 0x10 */
U32 StripeSize; /* 0x18 */
U8 Name[16]; /* 0x1C */
MPI2_RAID_VOLUME_PHYSDISK PhysDisk[MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS];/* 0x2C */
} MPI2_RAID_VOLUME_CREATION_STRUCT,
MPI2_POINTER PTR_MPI2_RAID_VOLUME_CREATION_STRUCT,
Mpi2RaidVolumeCreationStruct_t, MPI2_POINTER pMpi2RaidVolumeCreationStruct_t;
/* use MPI2_RAID_VOL_TYPE_ defines from mpi2_cnfg.h for VolumeType */
/* defines for the VolumeCreationFlags field */
#define MPI2_RAID_VOL_CREATION_USE_DEFAULT_SETTINGS (0x80)
#define MPI2_RAID_VOL_CREATION_BACKGROUND_INIT (0x04)
#define MPI2_RAID_VOL_CREATION_LOW_LEVEL_INIT (0x02)
#define MPI2_RAID_VOL_CREATION_MIGRATE_DATA (0x01)
/* RAID Online Capacity Expansion Structure */
typedef struct _MPI2_RAID_ONLINE_CAPACITY_EXPANSION
{
U32 Flags; /* 0x00 */
U16 DevHandle0; /* 0x04 */
U16 Reserved1; /* 0x06 */
U16 DevHandle1; /* 0x08 */
U16 Reserved2; /* 0x0A */
} MPI2_RAID_ONLINE_CAPACITY_EXPANSION,
MPI2_POINTER PTR_MPI2_RAID_ONLINE_CAPACITY_EXPANSION,
Mpi2RaidOnlineCapacityExpansion_t,
MPI2_POINTER pMpi2RaidOnlineCapacityExpansion_t;
/* RAID Volume Indicator Structure */
typedef struct _MPI2_RAID_VOL_INDICATOR
{
U64 TotalBlocks; /* 0x00 */
U64 BlocksRemaining; /* 0x08 */
U32 Flags; /* 0x10 */
} MPI2_RAID_VOL_INDICATOR, MPI2_POINTER PTR_MPI2_RAID_VOL_INDICATOR,
Mpi2RaidVolIndicator_t, MPI2_POINTER pMpi2RaidVolIndicator_t;
/* defines for RAID Volume Indicator Flags field */
#define MPI2_RAID_VOL_FLAGS_OP_MASK (0x0000000F)
#define MPI2_RAID_VOL_FLAGS_OP_BACKGROUND_INIT (0x00000000)
#define MPI2_RAID_VOL_FLAGS_OP_ONLINE_CAP_EXPANSION (0x00000001)
#define MPI2_RAID_VOL_FLAGS_OP_CONSISTENCY_CHECK (0x00000002)
#define MPI2_RAID_VOL_FLAGS_OP_RESYNC (0x00000003)
/* RAID Action Reply ActionData union */
typedef union _MPI2_RAID_ACTION_REPLY_DATA
{
U32 Word[5];
MPI2_RAID_VOL_INDICATOR RaidVolumeIndicator;
U16 VolDevHandle;
U8 VolumeState;
U8 PhysDiskNum;
} MPI2_RAID_ACTION_REPLY_DATA, MPI2_POINTER PTR_MPI2_RAID_ACTION_REPLY_DATA,
Mpi2RaidActionReplyData_t, MPI2_POINTER pMpi2RaidActionReplyData_t;
/* use MPI2_RAIDVOL0_SETTING_ defines from mpi2_cnfg.h for MPI2_RAID_ACTION_CHANGE_VOL_WRITE_CACHE action */
/* RAID Action Reply Message */
typedef struct _MPI2_RAID_ACTION_REPLY
{
U8 Action; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 VolDevHandle; /* 0x04 */
U8 PhysDiskNum; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved2; /* 0x0A */
U16 Reserved3; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
MPI2_RAID_ACTION_REPLY_DATA ActionData; /* 0x14 */
} MPI2_RAID_ACTION_REPLY, MPI2_POINTER PTR_MPI2_RAID_ACTION_REPLY,
Mpi2RaidActionReply_t, MPI2_POINTER pMpi2RaidActionReply_t;
#endif

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/*
* Copyright (c) 2000-2007 LSI Corporation.
*
*
* Name: mpi2_sas.h
* Title: MPI Serial Attached SCSI structures and definitions
* Creation Date: February 9, 2007
*
* mpi2.h Version: 02.00.02
*
* Version History
* ---------------
*
* Date Version Description
* -------- -------- ------------------------------------------------------
* 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
* 06-26-07 02.00.01 Added Clear All Persistent Operation to SAS IO Unit
* Control Request.
* 10-02-08 02.00.02 Added Set IOC Parameter Operation to SAS IO Unit Control
* Request.
* --------------------------------------------------------------------------
*/
#ifndef MPI2_SAS_H
#define MPI2_SAS_H
/*
* Values for SASStatus.
*/
#define MPI2_SASSTATUS_SUCCESS (0x00)
#define MPI2_SASSTATUS_UNKNOWN_ERROR (0x01)
#define MPI2_SASSTATUS_INVALID_FRAME (0x02)
#define MPI2_SASSTATUS_UTC_BAD_DEST (0x03)
#define MPI2_SASSTATUS_UTC_BREAK_RECEIVED (0x04)
#define MPI2_SASSTATUS_UTC_CONNECT_RATE_NOT_SUPPORTED (0x05)
#define MPI2_SASSTATUS_UTC_PORT_LAYER_REQUEST (0x06)
#define MPI2_SASSTATUS_UTC_PROTOCOL_NOT_SUPPORTED (0x07)
#define MPI2_SASSTATUS_UTC_STP_RESOURCES_BUSY (0x08)
#define MPI2_SASSTATUS_UTC_WRONG_DESTINATION (0x09)
#define MPI2_SASSTATUS_SHORT_INFORMATION_UNIT (0x0A)
#define MPI2_SASSTATUS_LONG_INFORMATION_UNIT (0x0B)
#define MPI2_SASSTATUS_XFER_RDY_INCORRECT_WRITE_DATA (0x0C)
#define MPI2_SASSTATUS_XFER_RDY_REQUEST_OFFSET_ERROR (0x0D)
#define MPI2_SASSTATUS_XFER_RDY_NOT_EXPECTED (0x0E)
#define MPI2_SASSTATUS_DATA_INCORRECT_DATA_LENGTH (0x0F)
#define MPI2_SASSTATUS_DATA_TOO_MUCH_READ_DATA (0x10)
#define MPI2_SASSTATUS_DATA_OFFSET_ERROR (0x11)
#define MPI2_SASSTATUS_SDSF_NAK_RECEIVED (0x12)
#define MPI2_SASSTATUS_SDSF_CONNECTION_FAILED (0x13)
#define MPI2_SASSTATUS_INITIATOR_RESPONSE_TIMEOUT (0x14)
/*
* Values for the SAS DeviceInfo field used in SAS Device Status Change Event
* data and SAS Configuration pages.
*/
#define MPI2_SAS_DEVICE_INFO_SEP (0x00004000)
#define MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE (0x00002000)
#define MPI2_SAS_DEVICE_INFO_LSI_DEVICE (0x00001000)
#define MPI2_SAS_DEVICE_INFO_DIRECT_ATTACH (0x00000800)
#define MPI2_SAS_DEVICE_INFO_SSP_TARGET (0x00000400)
#define MPI2_SAS_DEVICE_INFO_STP_TARGET (0x00000200)
#define MPI2_SAS_DEVICE_INFO_SMP_TARGET (0x00000100)
#define MPI2_SAS_DEVICE_INFO_SATA_DEVICE (0x00000080)
#define MPI2_SAS_DEVICE_INFO_SSP_INITIATOR (0x00000040)
#define MPI2_SAS_DEVICE_INFO_STP_INITIATOR (0x00000020)
#define MPI2_SAS_DEVICE_INFO_SMP_INITIATOR (0x00000010)
#define MPI2_SAS_DEVICE_INFO_SATA_HOST (0x00000008)
#define MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE (0x00000007)
#define MPI2_SAS_DEVICE_INFO_NO_DEVICE (0x00000000)
#define MPI2_SAS_DEVICE_INFO_END_DEVICE (0x00000001)
#define MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER (0x00000002)
#define MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER (0x00000003)
/*****************************************************************************
*
* SAS Messages
*
*****************************************************************************/
/****************************************************************************
* SMP Passthrough messages
****************************************************************************/
/* SMP Passthrough Request Message */
typedef struct _MPI2_SMP_PASSTHROUGH_REQUEST
{
U8 PassthroughFlags; /* 0x00 */
U8 PhysicalPort; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 RequestDataLength; /* 0x04 */
U8 SGLFlags; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved1; /* 0x0A */
U32 Reserved2; /* 0x0C */
U64 SASAddress; /* 0x10 */
U32 Reserved3; /* 0x18 */
U32 Reserved4; /* 0x1C */
MPI2_SIMPLE_SGE_UNION SGL; /* 0x20 */
} MPI2_SMP_PASSTHROUGH_REQUEST, MPI2_POINTER PTR_MPI2_SMP_PASSTHROUGH_REQUEST,
Mpi2SmpPassthroughRequest_t, MPI2_POINTER pMpi2SmpPassthroughRequest_t;
/* values for PassthroughFlags field */
#define MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE (0x80)
/* values for SGLFlags field are in the SGL section of mpi2.h */
/* SMP Passthrough Reply Message */
typedef struct _MPI2_SMP_PASSTHROUGH_REPLY
{
U8 PassthroughFlags; /* 0x00 */
U8 PhysicalPort; /* 0x01 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 ResponseDataLength; /* 0x04 */
U8 SGLFlags; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved1; /* 0x0A */
U8 Reserved2; /* 0x0C */
U8 SASStatus; /* 0x0D */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
U32 Reserved3; /* 0x14 */
U8 ResponseData[4]; /* 0x18 */
} MPI2_SMP_PASSTHROUGH_REPLY, MPI2_POINTER PTR_MPI2_SMP_PASSTHROUGH_REPLY,
Mpi2SmpPassthroughReply_t, MPI2_POINTER pMpi2SmpPassthroughReply_t;
/* values for PassthroughFlags field */
#define MPI2_SMP_PT_REPLY_PT_FLAGS_IMMEDIATE (0x80)
/* values for SASStatus field are at the top of this file */
/****************************************************************************
* SATA Passthrough messages
****************************************************************************/
/* SATA Passthrough Request Message */
typedef struct _MPI2_SATA_PASSTHROUGH_REQUEST
{
U16 DevHandle; /* 0x00 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 PassthroughFlags; /* 0x04 */
U8 SGLFlags; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved1; /* 0x0A */
U32 Reserved2; /* 0x0C */
U32 Reserved3; /* 0x10 */
U32 Reserved4; /* 0x14 */
U32 DataLength; /* 0x18 */
U8 CommandFIS[20]; /* 0x1C */
MPI2_SIMPLE_SGE_UNION SGL; /* 0x20 */
} MPI2_SATA_PASSTHROUGH_REQUEST, MPI2_POINTER PTR_MPI2_SATA_PASSTHROUGH_REQUEST,
Mpi2SataPassthroughRequest_t, MPI2_POINTER pMpi2SataPassthroughRequest_t;
/* values for PassthroughFlags field */
#define MPI2_SATA_PT_REQ_PT_FLAGS_EXECUTE_DIAG (0x0100)
#define MPI2_SATA_PT_REQ_PT_FLAGS_DMA (0x0020)
#define MPI2_SATA_PT_REQ_PT_FLAGS_PIO (0x0010)
#define MPI2_SATA_PT_REQ_PT_FLAGS_UNSPECIFIED_VU (0x0004)
#define MPI2_SATA_PT_REQ_PT_FLAGS_WRITE (0x0002)
#define MPI2_SATA_PT_REQ_PT_FLAGS_READ (0x0001)
/* values for SGLFlags field are in the SGL section of mpi2.h */
/* SATA Passthrough Reply Message */
typedef struct _MPI2_SATA_PASSTHROUGH_REPLY
{
U16 DevHandle; /* 0x00 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 PassthroughFlags; /* 0x04 */
U8 SGLFlags; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved1; /* 0x0A */
U8 Reserved2; /* 0x0C */
U8 SASStatus; /* 0x0D */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
U8 StatusFIS[20]; /* 0x14 */
U32 StatusControlRegisters; /* 0x28 */
U32 TransferCount; /* 0x2C */
} MPI2_SATA_PASSTHROUGH_REPLY, MPI2_POINTER PTR_MPI2_SATA_PASSTHROUGH_REPLY,
Mpi2SataPassthroughReply_t, MPI2_POINTER pMpi2SataPassthroughReply_t;
/* values for SASStatus field are at the top of this file */
/****************************************************************************
* SAS IO Unit Control messages
****************************************************************************/
/* SAS IO Unit Control Request Message */
typedef struct _MPI2_SAS_IOUNIT_CONTROL_REQUEST
{
U8 Operation; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 DevHandle; /* 0x04 */
U8 IOCParameter; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved3; /* 0x0A */
U16 Reserved4; /* 0x0C */
U8 PhyNum; /* 0x0E */
U8 PrimFlags; /* 0x0F */
U32 Primitive; /* 0x10 */
U8 LookupMethod; /* 0x14 */
U8 Reserved5; /* 0x15 */
U16 SlotNumber; /* 0x16 */
U64 LookupAddress; /* 0x18 */
U32 IOCParameterValue; /* 0x20 */
U32 Reserved7; /* 0x24 */
U32 Reserved8; /* 0x28 */
} MPI2_SAS_IOUNIT_CONTROL_REQUEST,
MPI2_POINTER PTR_MPI2_SAS_IOUNIT_CONTROL_REQUEST,
Mpi2SasIoUnitControlRequest_t, MPI2_POINTER pMpi2SasIoUnitControlRequest_t;
/* values for the Operation field */
#define MPI2_SAS_OP_CLEAR_ALL_PERSISTENT (0x02)
#define MPI2_SAS_OP_PHY_LINK_RESET (0x06)
#define MPI2_SAS_OP_PHY_HARD_RESET (0x07)
#define MPI2_SAS_OP_PHY_CLEAR_ERROR_LOG (0x08)
#define MPI2_SAS_OP_SEND_PRIMITIVE (0x0A)
#define MPI2_SAS_OP_FORCE_FULL_DISCOVERY (0x0B)
#define MPI2_SAS_OP_TRANSMIT_PORT_SELECT_SIGNAL (0x0C)
#define MPI2_SAS_OP_REMOVE_DEVICE (0x0D)
#define MPI2_SAS_OP_LOOKUP_MAPPING (0x0E)
#define MPI2_SAS_OP_SET_IOC_PARAMETER (0x0F)
#define MPI2_SAS_OP_PRODUCT_SPECIFIC_MIN (0x80)
/* values for the PrimFlags field */
#define MPI2_SAS_PRIMFLAGS_SINGLE (0x08)
#define MPI2_SAS_PRIMFLAGS_TRIPLE (0x02)
#define MPI2_SAS_PRIMFLAGS_REDUNDANT (0x01)
/* values for the LookupMethod field */
#define MPI2_SAS_LOOKUP_METHOD_SAS_ADDRESS (0x01)
#define MPI2_SAS_LOOKUP_METHOD_SAS_ENCLOSURE_SLOT (0x02)
#define MPI2_SAS_LOOKUP_METHOD_SAS_DEVICE_NAME (0x03)
/* SAS IO Unit Control Reply Message */
typedef struct _MPI2_SAS_IOUNIT_CONTROL_REPLY
{
U8 Operation; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 DevHandle; /* 0x04 */
U8 IOCParameter; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved3; /* 0x0A */
U16 Reserved4; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
} MPI2_SAS_IOUNIT_CONTROL_REPLY,
MPI2_POINTER PTR_MPI2_SAS_IOUNIT_CONTROL_REPLY,
Mpi2SasIoUnitControlReply_t, MPI2_POINTER pMpi2SasIoUnitControlReply_t;
#endif

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/*
* Copyright (c) 2000-2008 LSI Corporation.
*
*
* Name: mpi2_tool.h
* Title: MPI diagnostic tool structures and definitions
* Creation Date: March 26, 2007
*
* mpi2_tool.h Version: 02.00.02
*
* Version History
* ---------------
*
* Date Version Description
* -------- -------- ------------------------------------------------------
* 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
* 12-18-07 02.00.01 Added Diagnostic Buffer Post and Diagnostic Release
* structures and defines.
* 02-29-08 02.00.02 Modified various names to make them 32-character unique.
* --------------------------------------------------------------------------
*/
#ifndef MPI2_TOOL_H
#define MPI2_TOOL_H
/*****************************************************************************
*
* Toolbox Messages
*
*****************************************************************************/
/* defines for the Tools */
#define MPI2_TOOLBOX_CLEAN_TOOL (0x00)
#define MPI2_TOOLBOX_MEMORY_MOVE_TOOL (0x01)
#define MPI2_TOOLBOX_BEACON_TOOL (0x05)
/****************************************************************************
* Toolbox reply
****************************************************************************/
typedef struct _MPI2_TOOLBOX_REPLY
{
U8 Tool; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
U16 Reserved5; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
} MPI2_TOOLBOX_REPLY, MPI2_POINTER PTR_MPI2_TOOLBOX_REPLY,
Mpi2ToolboxReply_t, MPI2_POINTER pMpi2ToolboxReply_t;
/****************************************************************************
* Toolbox Clean Tool request
****************************************************************************/
typedef struct _MPI2_TOOLBOX_CLEAN_REQUEST
{
U8 Tool; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
U32 Flags; /* 0x0C */
} MPI2_TOOLBOX_CLEAN_REQUEST, MPI2_POINTER PTR_MPI2_TOOLBOX_CLEAN_REQUEST,
Mpi2ToolboxCleanRequest_t, MPI2_POINTER pMpi2ToolboxCleanRequest_t;
/* values for the Flags field */
#define MPI2_TOOLBOX_CLEAN_BOOT_SERVICES (0x80000000)
#define MPI2_TOOLBOX_CLEAN_PERSIST_MANUFACT_PAGES (0x40000000)
#define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES (0x20000000)
#define MPI2_TOOLBOX_CLEAN_FW_CURRENT (0x10000000)
#define MPI2_TOOLBOX_CLEAN_FW_BACKUP (0x08000000)
#define MPI2_TOOLBOX_CLEAN_MEGARAID (0x02000000)
#define MPI2_TOOLBOX_CLEAN_INITIALIZATION (0x01000000)
#define MPI2_TOOLBOX_CLEAN_FLASH (0x00000004)
#define MPI2_TOOLBOX_CLEAN_SEEPROM (0x00000002)
#define MPI2_TOOLBOX_CLEAN_NVSRAM (0x00000001)
/****************************************************************************
* Toolbox Memory Move request
****************************************************************************/
typedef struct _MPI2_TOOLBOX_MEM_MOVE_REQUEST
{
U8 Tool; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
MPI2_SGE_SIMPLE_UNION SGL; /* 0x0C */
} MPI2_TOOLBOX_MEM_MOVE_REQUEST, MPI2_POINTER PTR_MPI2_TOOLBOX_MEM_MOVE_REQUEST,
Mpi2ToolboxMemMoveRequest_t, MPI2_POINTER pMpi2ToolboxMemMoveRequest_t;
/****************************************************************************
* Toolbox Beacon Tool request
****************************************************************************/
typedef struct _MPI2_TOOLBOX_BEACON_REQUEST
{
U8 Tool; /* 0x00 */
U8 Reserved1; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
U8 Reserved5; /* 0x0C */
U8 PhysicalPort; /* 0x0D */
U8 Reserved6; /* 0x0E */
U8 Flags; /* 0x0F */
} MPI2_TOOLBOX_BEACON_REQUEST, MPI2_POINTER PTR_MPI2_TOOLBOX_BEACON_REQUEST,
Mpi2ToolboxBeaconRequest_t, MPI2_POINTER pMpi2ToolboxBeaconRequest_t;
/* values for the Flags field */
#define MPI2_TOOLBOX_FLAGS_BEACONMODE_OFF (0x00)
#define MPI2_TOOLBOX_FLAGS_BEACONMODE_ON (0x01)
/*****************************************************************************
*
* Diagnostic Buffer Messages
*
*****************************************************************************/
/****************************************************************************
* Diagnostic Buffer Post request
****************************************************************************/
typedef struct _MPI2_DIAG_BUFFER_POST_REQUEST
{
U8 Reserved1; /* 0x00 */
U8 BufferType; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
U64 BufferAddress; /* 0x0C */
U32 BufferLength; /* 0x14 */
U32 Reserved5; /* 0x18 */
U32 Reserved6; /* 0x1C */
U32 Flags; /* 0x20 */
U32 ProductSpecific[23]; /* 0x24 */
} MPI2_DIAG_BUFFER_POST_REQUEST, MPI2_POINTER PTR_MPI2_DIAG_BUFFER_POST_REQUEST,
Mpi2DiagBufferPostRequest_t, MPI2_POINTER pMpi2DiagBufferPostRequest_t;
/* values for the BufferType field */
#define MPI2_DIAG_BUF_TYPE_TRACE (0x00)
#define MPI2_DIAG_BUF_TYPE_SNAPSHOT (0x01)
/* count of the number of buffer types */
#define MPI2_DIAG_BUF_TYPE_COUNT (0x02)
/****************************************************************************
* Diagnostic Buffer Post reply
****************************************************************************/
typedef struct _MPI2_DIAG_BUFFER_POST_REPLY
{
U8 Reserved1; /* 0x00 */
U8 BufferType; /* 0x01 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
U16 Reserved5; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
U32 TransferLength; /* 0x14 */
} MPI2_DIAG_BUFFER_POST_REPLY, MPI2_POINTER PTR_MPI2_DIAG_BUFFER_POST_REPLY,
Mpi2DiagBufferPostReply_t, MPI2_POINTER pMpi2DiagBufferPostReply_t;
/****************************************************************************
* Diagnostic Release request
****************************************************************************/
typedef struct _MPI2_DIAG_RELEASE_REQUEST
{
U8 Reserved1; /* 0x00 */
U8 BufferType; /* 0x01 */
U8 ChainOffset; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
} MPI2_DIAG_RELEASE_REQUEST, MPI2_POINTER PTR_MPI2_DIAG_RELEASE_REQUEST,
Mpi2DiagReleaseRequest_t, MPI2_POINTER pMpi2DiagReleaseRequest_t;
/****************************************************************************
* Diagnostic Buffer Post reply
****************************************************************************/
typedef struct _MPI2_DIAG_RELEASE_REPLY
{
U8 Reserved1; /* 0x00 */
U8 BufferType; /* 0x01 */
U8 MsgLength; /* 0x02 */
U8 Function; /* 0x03 */
U16 Reserved2; /* 0x04 */
U8 Reserved3; /* 0x06 */
U8 MsgFlags; /* 0x07 */
U8 VP_ID; /* 0x08 */
U8 VF_ID; /* 0x09 */
U16 Reserved4; /* 0x0A */
U16 Reserved5; /* 0x0C */
U16 IOCStatus; /* 0x0E */
U32 IOCLogInfo; /* 0x10 */
} MPI2_DIAG_RELEASE_REPLY, MPI2_POINTER PTR_MPI2_DIAG_RELEASE_REPLY,
Mpi2DiagReleaseReply_t, MPI2_POINTER pMpi2DiagReleaseReply_t;
#endif

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/*
* Copyright (c) 2000-2007 LSI Corporation.
*
*
* Name: mpi2_type.h
* Title: MPI basic type definitions
* Creation Date: August 16, 2006
*
* mpi2_type.h Version: 02.00.00
*
* Version History
* ---------------
*
* Date Version Description
* -------- -------- ------------------------------------------------------
* 04-30-07 02.00.00 Corresponds to Fusion-MPT MPI Specification Rev A.
* --------------------------------------------------------------------------
*/
#ifndef MPI2_TYPE_H
#define MPI2_TYPE_H
/*******************************************************************************
* Define MPI2_POINTER if it hasn't already been defined. By default
* MPI2_POINTER is defined to be a near pointer. MPI2_POINTER can be defined as
* a far pointer by defining MPI2_POINTER as "far *" before this header file is
* included.
*/
#ifndef MPI2_POINTER
#define MPI2_POINTER *
#endif
/* the basic types may have already been included by mpi_type.h */
#ifndef MPI_TYPE_H
/*****************************************************************************
*
* Basic Types
*
*****************************************************************************/
typedef u8 U8;
typedef __le16 U16;
typedef __le32 U32;
typedef __le64 U64 __attribute__((aligned(4)));
/*****************************************************************************
*
* Pointer Types
*
*****************************************************************************/
typedef U8 *PU8;
typedef U16 *PU16;
typedef U32 *PU32;
typedef U64 *PU64;
#endif
#endif

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/*
* This is the Fusion MPT base driver providing common API layer interface
* for access to MPT (Message Passing Technology) firmware.
*
* This code is based on drivers/scsi/mpt2sas/mpt2_base.h
* Copyright (C) 2007-2008 LSI Corporation
* (mailto:DL-MPTFusionLinux@lsi.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#ifndef MPT2SAS_BASE_H_INCLUDED
#define MPT2SAS_BASE_H_INCLUDED
#include "mpi/mpi2_type.h"
#include "mpi/mpi2.h"
#include "mpi/mpi2_ioc.h"
#include "mpi/mpi2_cnfg.h"
#include "mpi/mpi2_init.h"
#include "mpi/mpi2_raid.h"
#include "mpi/mpi2_tool.h"
#include "mpi/mpi2_sas.h"
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_transport_sas.h>
#include <scsi/scsi_dbg.h>
#include "mpt2sas_debug.h"
/* driver versioning info */
#define MPT2SAS_DRIVER_NAME "mpt2sas"
#define MPT2SAS_AUTHOR "LSI Corporation <DL-MPTFusionLinux@lsi.com>"
#define MPT2SAS_DESCRIPTION "LSI MPT Fusion SAS 2.0 Device Driver"
#define MPT2SAS_DRIVER_VERSION "00.100.11.16"
#define MPT2SAS_MAJOR_VERSION 00
#define MPT2SAS_MINOR_VERSION 100
#define MPT2SAS_BUILD_VERSION 11
#define MPT2SAS_RELEASE_VERSION 16
/*
* Set MPT2SAS_SG_DEPTH value based on user input.
*/
#ifdef CONFIG_SCSI_MPT2SAS_MAX_SGE
#if CONFIG_SCSI_MPT2SAS_MAX_SGE < 16
#define MPT2SAS_SG_DEPTH 16
#elif CONFIG_SCSI_MPT2SAS_MAX_SGE > 128
#define MPT2SAS_SG_DEPTH 128
#else
#define MPT2SAS_SG_DEPTH CONFIG_SCSI_MPT2SAS_MAX_SGE
#endif
#else
#define MPT2SAS_SG_DEPTH 128 /* MAX_HW_SEGMENTS */
#endif
/*
* Generic Defines
*/
#define MPT2SAS_SATA_QUEUE_DEPTH 32
#define MPT2SAS_SAS_QUEUE_DEPTH 254
#define MPT2SAS_RAID_QUEUE_DEPTH 128
#define MPT_NAME_LENGTH 32 /* generic length of strings */
#define MPT_STRING_LENGTH 64
#define MPT_MAX_CALLBACKS 16
#define CAN_SLEEP 1
#define NO_SLEEP 0
#define INTERNAL_CMDS_COUNT 10 /* reserved cmds */
#define MPI2_HIM_MASK 0xFFFFFFFF /* mask every bit*/
#define MPT2SAS_INVALID_DEVICE_HANDLE 0xFFFF
/*
* reset phases
*/
#define MPT2_IOC_PRE_RESET 1 /* prior to host reset */
#define MPT2_IOC_AFTER_RESET 2 /* just after host reset */
#define MPT2_IOC_DONE_RESET 3 /* links re-initialized */
/*
* logging format
*/
#define MPT2SAS_FMT "%s: "
#define MPT2SAS_DEBUG_FMT KERN_DEBUG MPT2SAS_FMT
#define MPT2SAS_INFO_FMT KERN_INFO MPT2SAS_FMT
#define MPT2SAS_NOTE_FMT KERN_NOTICE MPT2SAS_FMT
#define MPT2SAS_WARN_FMT KERN_WARNING MPT2SAS_FMT
#define MPT2SAS_ERR_FMT KERN_ERR MPT2SAS_FMT
/*
* per target private data
*/
#define MPT_TARGET_FLAGS_RAID_COMPONENT 0x01
#define MPT_TARGET_FLAGS_VOLUME 0x02
#define MPT_TARGET_FLAGS_DELETED 0x04
/**
* struct MPT2SAS_TARGET - starget private hostdata
* @starget: starget object
* @sas_address: target sas address
* @handle: device handle
* @num_luns: number luns
* @flags: MPT_TARGET_FLAGS_XXX flags
* @deleted: target flaged for deletion
* @tm_busy: target is busy with TM request.
*/
struct MPT2SAS_TARGET {
struct scsi_target *starget;
u64 sas_address;
u16 handle;
int num_luns;
u32 flags;
u8 deleted;
u8 tm_busy;
};
/*
* per device private data
*/
#define MPT_DEVICE_FLAGS_INIT 0x01
#define MPT_DEVICE_TLR_ON 0x02
/**
* struct MPT2SAS_DEVICE - sdev private hostdata
* @sas_target: starget private hostdata
* @lun: lun number
* @flags: MPT_DEVICE_XXX flags
* @configured_lun: lun is configured
* @block: device is in SDEV_BLOCK state
* @tlr_snoop_check: flag used in determining whether to disable TLR
*/
struct MPT2SAS_DEVICE {
struct MPT2SAS_TARGET *sas_target;
unsigned int lun;
u32 flags;
u8 configured_lun;
u8 block;
u8 tlr_snoop_check;
};
#define MPT2_CMD_NOT_USED 0x8000 /* free */
#define MPT2_CMD_COMPLETE 0x0001 /* completed */
#define MPT2_CMD_PENDING 0x0002 /* pending */
#define MPT2_CMD_REPLY_VALID 0x0004 /* reply is valid */
#define MPT2_CMD_RESET 0x0008 /* host reset dropped the command */
/**
* struct _internal_cmd - internal commands struct
* @mutex: mutex
* @done: completion
* @reply: reply message pointer
* @status: MPT2_CMD_XXX status
* @smid: system message id
*/
struct _internal_cmd {
struct mutex mutex;
struct completion done;
void *reply;
u16 status;
u16 smid;
};
/*
* SAS Topology Structures
*/
/**
* struct _sas_device - attached device information
* @list: sas device list
* @starget: starget object
* @sas_address: device sas address
* @device_name: retrieved from the SAS IDENTIFY frame.
* @handle: device handle
* @parent_handle: handle to parent device
* @enclosure_handle: enclosure handle
* @enclosure_logical_id: enclosure logical identifier
* @volume_handle: volume handle (valid when hidden raid member)
* @volume_wwid: volume unique identifier
* @device_info: bitfield provides detailed info about the device
* @id: target id
* @channel: target channel
* @slot: number number
* @hidden_raid_component: set to 1 when this is a raid member
* @responding: used in _scsih_sas_device_mark_responding
*/
struct _sas_device {
struct list_head list;
struct scsi_target *starget;
u64 sas_address;
u64 device_name;
u16 handle;
u16 parent_handle;
u16 enclosure_handle;
u64 enclosure_logical_id;
u16 volume_handle;
u64 volume_wwid;
u32 device_info;
int id;
int channel;
u16 slot;
u8 hidden_raid_component;
u8 responding;
};
/**
* struct _raid_device - raid volume link list
* @list: sas device list
* @starget: starget object
* @sdev: scsi device struct (volumes are single lun)
* @wwid: unique identifier for the volume
* @handle: device handle
* @id: target id
* @channel: target channel
* @volume_type: the raid level
* @device_info: bitfield provides detailed info about the hidden components
* @num_pds: number of hidden raid components
* @responding: used in _scsih_raid_device_mark_responding
*/
struct _raid_device {
struct list_head list;
struct scsi_target *starget;
struct scsi_device *sdev;
u64 wwid;
u16 handle;
int id;
int channel;
u8 volume_type;
u32 device_info;
u8 num_pds;
u8 responding;
};
/**
* struct _boot_device - boot device info
* @is_raid: flag to indicate whether this is volume
* @device: holds pointer for either struct _sas_device or
* struct _raid_device
*/
struct _boot_device {
u8 is_raid;
void *device;
};
/**
* struct _sas_port - wide/narrow sas port information
* @port_list: list of ports belonging to expander
* @handle: device handle for this port
* @sas_address: sas address of this port
* @num_phys: number of phys belonging to this port
* @remote_identify: attached device identification
* @rphy: sas transport rphy object
* @port: sas transport wide/narrow port object
* @phy_list: _sas_phy list objects belonging to this port
*/
struct _sas_port {
struct list_head port_list;
u16 handle;
u64 sas_address;
u8 num_phys;
struct sas_identify remote_identify;
struct sas_rphy *rphy;
struct sas_port *port;
struct list_head phy_list;
};
/**
* struct _sas_phy - phy information
* @port_siblings: list of phys belonging to a port
* @identify: phy identification
* @remote_identify: attached device identification
* @phy: sas transport phy object
* @phy_id: unique phy id
* @handle: device handle for this phy
* @attached_handle: device handle for attached device
*/
struct _sas_phy {
struct list_head port_siblings;
struct sas_identify identify;
struct sas_identify remote_identify;
struct sas_phy *phy;
u8 phy_id;
u16 handle;
u16 attached_handle;
};
/**
* struct _sas_node - sas_host/expander information
* @list: list of expanders
* @parent_dev: parent device class
* @num_phys: number phys belonging to this sas_host/expander
* @sas_address: sas address of this sas_host/expander
* @handle: handle for this sas_host/expander
* @parent_handle: parent handle
* @enclosure_handle: handle for this a member of an enclosure
* @device_info: bitwise defining capabilities of this sas_host/expander
* @responding: used in _scsih_expander_device_mark_responding
* @phy: a list of phys that make up this sas_host/expander
* @sas_port_list: list of ports attached to this sas_host/expander
*/
struct _sas_node {
struct list_head list;
struct device *parent_dev;
u8 num_phys;
u64 sas_address;
u16 handle;
u16 parent_handle;
u16 enclosure_handle;
u64 enclosure_logical_id;
u8 responding;
struct _sas_phy *phy;
struct list_head sas_port_list;
};
/**
* enum reset_type - reset state
* @FORCE_BIG_HAMMER: issue diagnostic reset
* @SOFT_RESET: issue message_unit_reset, if fails to to big hammer
*/
enum reset_type {
FORCE_BIG_HAMMER,
SOFT_RESET,
};
/**
* struct request_tracker - firmware request tracker
* @smid: system message id
* @scmd: scsi request pointer
* @cb_idx: callback index
* @chain_list: list of chains associated to this IO
* @tracker_list: list of free request (ioc->free_list)
*/
struct request_tracker {
u16 smid;
struct scsi_cmnd *scmd;
u8 cb_idx;
struct list_head tracker_list;
};
typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
/**
* struct MPT2SAS_ADAPTER - per adapter struct
* @list: ioc_list
* @shost: shost object
* @id: unique adapter id
* @pci_irq: irq number
* @name: generic ioc string
* @tmp_string: tmp string used for logging
* @pdev: pci pdev object
* @chip: memory mapped register space
* @chip_phys: physical addrss prior to mapping
* @pio_chip: I/O mapped register space
* @logging_level: see mpt2sas_debug.h
* @ir_firmware: IR firmware present
* @bars: bitmask of BAR's that must be configured
* @mask_interrupts: ignore interrupt
* @fault_reset_work_q_name: fw fault work queue
* @fault_reset_work_q: ""
* @fault_reset_work: ""
* @firmware_event_name: fw event work queue
* @firmware_event_thread: ""
* @fw_events_off: flag to turn off fw event handling
* @fw_event_lock:
* @fw_event_list: list of fw events
* @aen_event_read_flag: event log was read
* @broadcast_aen_busy: broadcast aen waiting to be serviced
* @ioc_reset_in_progress: host reset in progress
* @ioc_reset_in_progress_lock:
* @ioc_link_reset_in_progress: phy/hard reset in progress
* @ignore_loginfos: ignore loginfos during task managment
* @remove_host: flag for when driver unloads, to avoid sending dev resets
* @wait_for_port_enable_to_complete:
* @msix_enable: flag indicating msix is enabled
* @msix_vector_count: number msix vectors
* @msix_table: virt address to the msix table
* @msix_table_backup: backup msix table
* @scsi_io_cb_idx: shost generated commands
* @tm_cb_idx: task management commands
* @transport_cb_idx: transport internal commands
* @ctl_cb_idx: clt internal commands
* @base_cb_idx: base internal commands
* @config_cb_idx: base internal commands
* @base_cmds:
* @transport_cmds:
* @tm_cmds:
* @ctl_cmds:
* @config_cmds:
* @base_add_sg_single: handler for either 32/64 bit sgl's
* @event_type: bits indicating which events to log
* @event_context: unique id for each logged event
* @event_log: event log pointer
* @event_masks: events that are masked
* @facts: static facts data
* @pfacts: static port facts data
* @manu_pg0: static manufacturing page 0
* @bios_pg2: static bios page 2
* @bios_pg3: static bios page 3
* @ioc_pg8: static ioc page 8
* @iounit_pg0: static iounit page 0
* @iounit_pg1: static iounit page 1
* @sas_hba: sas host object
* @sas_expander_list: expander object list
* @sas_node_lock:
* @sas_device_list: sas device object list
* @sas_device_init_list: sas device object list (used only at init time)
* @sas_device_lock:
* @io_missing_delay: time for IO completed by fw when PDR enabled
* @device_missing_delay: time for device missing by fw when PDR enabled
* @config_page_sz: config page size
* @config_page: reserve memory for config page payload
* @config_page_dma:
* @sge_size: sg element size for either 32/64 bit
* @request_depth: hba request queue depth
* @request_sz: per request frame size
* @request: pool of request frames
* @request_dma:
* @request_dma_sz:
* @scsi_lookup: firmware request tracker list
* @scsi_lookup_lock:
* @free_list: free list of request
* @chain: pool of chains
* @pending_io_count:
* @reset_wq:
* @chain_dma:
* @max_sges_in_main_message: number sg elements in main message
* @max_sges_in_chain_message: number sg elements per chain
* @chains_needed_per_io: max chains per io
* @chain_offset_value_for_main_message: location 1st sg in main
* @chain_depth: total chains allocated
* @sense: pool of sense
* @sense_dma:
* @sense_dma_pool:
* @reply_depth: hba reply queue depth:
* @reply_sz: per reply frame size:
* @reply: pool of replys:
* @reply_dma:
* @reply_dma_pool:
* @reply_free_queue_depth: reply free depth
* @reply_free: pool for reply free queue (32 bit addr)
* @reply_free_dma:
* @reply_free_dma_pool:
* @reply_free_host_index: tail index in pool to insert free replys
* @reply_post_queue_depth: reply post queue depth
* @reply_post_free: pool for reply post (64bit descriptor)
* @reply_post_free_dma:
* @reply_post_free_dma_pool:
* @reply_post_host_index: head index in the pool where FW completes IO
*/
struct MPT2SAS_ADAPTER {
struct list_head list;
struct Scsi_Host *shost;
u8 id;
u32 pci_irq;
char name[MPT_NAME_LENGTH];
char tmp_string[MPT_STRING_LENGTH];
struct pci_dev *pdev;
Mpi2SystemInterfaceRegs_t __iomem *chip;
unsigned long chip_phys;
unsigned long pio_chip;
int logging_level;
u8 ir_firmware;
int bars;
u8 mask_interrupts;
/* fw fault handler */
char fault_reset_work_q_name[20];
struct workqueue_struct *fault_reset_work_q;
struct delayed_work fault_reset_work;
/* fw event handler */
char firmware_event_name[20];
struct workqueue_struct *firmware_event_thread;
u8 fw_events_off;
spinlock_t fw_event_lock;
struct list_head fw_event_list;
/* misc flags */
int aen_event_read_flag;
u8 broadcast_aen_busy;
u8 ioc_reset_in_progress;
u8 shost_recovery;
spinlock_t ioc_reset_in_progress_lock;
u8 ioc_link_reset_in_progress;
u8 ignore_loginfos;
u8 remove_host;
u8 wait_for_port_enable_to_complete;
u8 msix_enable;
u16 msix_vector_count;
u32 *msix_table;
u32 *msix_table_backup;
/* internal commands, callback index */
u8 scsi_io_cb_idx;
u8 tm_cb_idx;
u8 transport_cb_idx;
u8 ctl_cb_idx;
u8 base_cb_idx;
u8 config_cb_idx;
struct _internal_cmd base_cmds;
struct _internal_cmd transport_cmds;
struct _internal_cmd tm_cmds;
struct _internal_cmd ctl_cmds;
struct _internal_cmd config_cmds;
MPT_ADD_SGE base_add_sg_single;
/* event log */
u32 event_type[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
u32 event_context;
void *event_log;
u32 event_masks[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
/* static config pages */
Mpi2IOCFactsReply_t facts;
Mpi2PortFactsReply_t *pfacts;
Mpi2ManufacturingPage0_t manu_pg0;
Mpi2BiosPage2_t bios_pg2;
Mpi2BiosPage3_t bios_pg3;
Mpi2IOCPage8_t ioc_pg8;
Mpi2IOUnitPage0_t iounit_pg0;
Mpi2IOUnitPage1_t iounit_pg1;
struct _boot_device req_boot_device;
struct _boot_device req_alt_boot_device;
struct _boot_device current_boot_device;
/* sas hba, expander, and device list */
struct _sas_node sas_hba;
struct list_head sas_expander_list;
spinlock_t sas_node_lock;
struct list_head sas_device_list;
struct list_head sas_device_init_list;
spinlock_t sas_device_lock;
struct list_head raid_device_list;
spinlock_t raid_device_lock;
u8 io_missing_delay;
u16 device_missing_delay;
int sas_id;
/* config page */
u16 config_page_sz;
void *config_page;
dma_addr_t config_page_dma;
/* request */
u16 sge_size;
u16 request_depth;
u16 request_sz;
u8 *request;
dma_addr_t request_dma;
u32 request_dma_sz;
struct request_tracker *scsi_lookup;
spinlock_t scsi_lookup_lock;
struct list_head free_list;
int pending_io_count;
wait_queue_head_t reset_wq;
/* chain */
u8 *chain;
dma_addr_t chain_dma;
u16 max_sges_in_main_message;
u16 max_sges_in_chain_message;
u16 chains_needed_per_io;
u16 chain_offset_value_for_main_message;
u16 chain_depth;
/* sense */
u8 *sense;
dma_addr_t sense_dma;
struct dma_pool *sense_dma_pool;
/* reply */
u16 reply_sz;
u8 *reply;
dma_addr_t reply_dma;
struct dma_pool *reply_dma_pool;
/* reply free queue */
u16 reply_free_queue_depth;
u32 *reply_free;
dma_addr_t reply_free_dma;
struct dma_pool *reply_free_dma_pool;
u32 reply_free_host_index;
/* reply post queue */
u16 reply_post_queue_depth;
Mpi2ReplyDescriptorsUnion_t *reply_post_free;
dma_addr_t reply_post_free_dma;
struct dma_pool *reply_post_free_dma_pool;
u32 reply_post_host_index;
/* diag buffer support */
u8 *diag_buffer[MPI2_DIAG_BUF_TYPE_COUNT];
u32 diag_buffer_sz[MPI2_DIAG_BUF_TYPE_COUNT];
dma_addr_t diag_buffer_dma[MPI2_DIAG_BUF_TYPE_COUNT];
u8 diag_buffer_status[MPI2_DIAG_BUF_TYPE_COUNT];
u32 unique_id[MPI2_DIAG_BUF_TYPE_COUNT];
u32 product_specific[MPI2_DIAG_BUF_TYPE_COUNT][23];
u32 diagnostic_flags[MPI2_DIAG_BUF_TYPE_COUNT];
};
typedef void (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID,
u32 reply);
/* base shared API */
extern struct list_head mpt2sas_ioc_list;
int mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc);
void mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc);
int mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc);
void mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc);
int mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
enum reset_type type);
void *mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid);
void *mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid);
void mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr);
dma_addr_t mpt2sas_base_get_msg_frame_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid);
dma_addr_t mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid);
u16 mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx);
void mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid);
void mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id,
u16 handle);
void mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id);
void mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
u8 vf_id, u16 io_index);
void mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id);
void mpt2sas_base_initialize_callback_handler(void);
u8 mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func);
void mpt2sas_base_release_callback_handler(u8 cb_idx);
void mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
void *mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr);
u32 mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked);
void mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code);
int mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
Mpi2SasIoUnitControlReply_t *mpi_reply, Mpi2SasIoUnitControlRequest_t
*mpi_request);
int mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request);
void mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type);
/* scsih shared API */
void mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
u8 type, u16 smid_task, ulong timeout);
void mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle);
void mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle);
struct _sas_node *mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc,
u16 handle);
struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER
*ioc, u64 sas_address);
struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address(
struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
void mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply);
void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
/* config shared API */
void mpt2sas_config_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
int mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys);
int mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page);
int mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2BiosPage2_t *config_page);
int mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2BiosPage3_t *config_page);
int mpt2sas_config_get_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2IOUnitPage0_t *config_page);
int mpt2sas_config_get_sas_device_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasDevicePage0_t *config_page, u32 form, u32 handle);
int mpt2sas_config_get_sas_device_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasDevicePage1_t *config_page, u32 form, u32 handle);
int mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasIOUnitPage0_t *config_page, u16 sz);
int mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2IOUnitPage1_t *config_page);
int mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2IOUnitPage1_t config_page);
int mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasIOUnitPage1_t *config_page, u16 sz);
int mpt2sas_config_get_ioc_pg8(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2IOCPage8_t *config_page);
int mpt2sas_config_get_expander_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2ExpanderPage0_t *config_page, u32 form, u32 handle);
int mpt2sas_config_get_expander_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2ExpanderPage1_t *config_page, u32 phy_number, u16 handle);
int mpt2sas_config_get_enclosure_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasEnclosurePage0_t *config_page, u32 form, u32 handle);
int mpt2sas_config_get_phy_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasPhyPage0_t *config_page, u32 phy_number);
int mpt2sas_config_get_phy_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2SasPhyPage1_t *config_page, u32 phy_number);
int mpt2sas_config_get_raid_volume_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form, u32 handle);
int mpt2sas_config_get_number_pds(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 *num_pds);
int mpt2sas_config_get_raid_volume_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 form, u32 handle, u16 sz);
int mpt2sas_config_get_phys_disk_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
*mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page, u32 form,
u32 form_specific);
int mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle,
u16 *volume_handle);
int mpt2sas_config_get_volume_wwid(struct MPT2SAS_ADAPTER *ioc, u16 volume_handle,
u64 *wwid);
/* ctl shared API */
extern struct device_attribute *mpt2sas_host_attrs[];
extern struct device_attribute *mpt2sas_dev_attrs[];
void mpt2sas_ctl_init(void);
void mpt2sas_ctl_exit(void);
void mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
void mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
void mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply);
void mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc,
Mpi2EventNotificationReply_t *mpi_reply);
/* transport shared API */
void mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
struct _sas_port *mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc,
u16 handle, u16 parent_handle);
void mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
u16 parent_handle);
int mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
*mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev);
int mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
*mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev);
void mpt2sas_transport_update_phy_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle,
u16 attached_handle, u8 phy_number, u8 link_rate);
extern struct sas_function_template mpt2sas_transport_functions;
extern struct scsi_transport_template *mpt2sas_transport_template;
#endif /* MPT2SAS_BASE_H_INCLUDED */

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/*
* Management Module Support for MPT (Message Passing Technology) based
* controllers
*
* This code is based on drivers/scsi/mpt2sas/mpt2_ctl.h
* Copyright (C) 2007-2008 LSI Corporation
* (mailto:DL-MPTFusionLinux@lsi.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#ifndef MPT2SAS_CTL_H_INCLUDED
#define MPT2SAS_CTL_H_INCLUDED
#ifdef __KERNEL__
#include <linux/miscdevice.h>
#endif
#define MPT2SAS_DEV_NAME "mpt2ctl"
#define MPT2_MAGIC_NUMBER 'm'
#define MPT2_IOCTL_DEFAULT_TIMEOUT (10) /* in seconds */
/**
* IOCTL opcodes
*/
#define MPT2IOCINFO _IOWR(MPT2_MAGIC_NUMBER, 17, \
struct mpt2_ioctl_iocinfo)
#define MPT2COMMAND _IOWR(MPT2_MAGIC_NUMBER, 20, \
struct mpt2_ioctl_command)
#ifdef CONFIG_COMPAT
#define MPT2COMMAND32 _IOWR(MPT2_MAGIC_NUMBER, 20, \
struct mpt2_ioctl_command32)
#endif
#define MPT2EVENTQUERY _IOWR(MPT2_MAGIC_NUMBER, 21, \
struct mpt2_ioctl_eventquery)
#define MPT2EVENTENABLE _IOWR(MPT2_MAGIC_NUMBER, 22, \
struct mpt2_ioctl_eventenable)
#define MPT2EVENTREPORT _IOWR(MPT2_MAGIC_NUMBER, 23, \
struct mpt2_ioctl_eventreport)
#define MPT2HARDRESET _IOWR(MPT2_MAGIC_NUMBER, 24, \
struct mpt2_ioctl_diag_reset)
#define MPT2BTDHMAPPING _IOWR(MPT2_MAGIC_NUMBER, 31, \
struct mpt2_ioctl_btdh_mapping)
/* diag buffer support */
#define MPT2DIAGREGISTER _IOWR(MPT2_MAGIC_NUMBER, 26, \
struct mpt2_diag_register)
#define MPT2DIAGRELEASE _IOWR(MPT2_MAGIC_NUMBER, 27, \
struct mpt2_diag_release)
#define MPT2DIAGUNREGISTER _IOWR(MPT2_MAGIC_NUMBER, 28, \
struct mpt2_diag_unregister)
#define MPT2DIAGQUERY _IOWR(MPT2_MAGIC_NUMBER, 29, \
struct mpt2_diag_query)
#define MPT2DIAGREADBUFFER _IOWR(MPT2_MAGIC_NUMBER, 30, \
struct mpt2_diag_read_buffer)
/**
* struct mpt2_ioctl_header - main header structure
* @ioc_number - IOC unit number
* @port_number - IOC port number
* @max_data_size - maximum number bytes to transfer on read
*/
struct mpt2_ioctl_header {
uint32_t ioc_number;
uint32_t port_number;
uint32_t max_data_size;
};
/**
* struct mpt2_ioctl_diag_reset - diagnostic reset
* @hdr - generic header
*/
struct mpt2_ioctl_diag_reset {
struct mpt2_ioctl_header hdr;
};
/**
* struct mpt2_ioctl_pci_info - pci device info
* @device - pci device id
* @function - pci function id
* @bus - pci bus id
* @segment_id - pci segment id
*/
struct mpt2_ioctl_pci_info {
union {
struct {
uint32_t device:5;
uint32_t function:3;
uint32_t bus:24;
} bits;
uint32_t word;
} u;
uint32_t segment_id;
};
#define MPT2_IOCTL_INTERFACE_SCSI (0x00)
#define MPT2_IOCTL_INTERFACE_FC (0x01)
#define MPT2_IOCTL_INTERFACE_FC_IP (0x02)
#define MPT2_IOCTL_INTERFACE_SAS (0x03)
#define MPT2_IOCTL_INTERFACE_SAS2 (0x04)
#define MPT2_IOCTL_VERSION_LENGTH (32)
/**
* struct mpt2_ioctl_iocinfo - generic controller info
* @hdr - generic header
* @adapter_type - type of adapter (spi, fc, sas)
* @port_number - port number
* @pci_id - PCI Id
* @hw_rev - hardware revision
* @sub_system_device - PCI subsystem Device ID
* @sub_system_vendor - PCI subsystem Vendor ID
* @rsvd0 - reserved
* @firmware_version - firmware version
* @bios_version - BIOS version
* @driver_version - driver version - 32 ASCII characters
* @rsvd1 - reserved
* @scsi_id - scsi id of adapter 0
* @rsvd2 - reserved
* @pci_information - pci info (2nd revision)
*/
struct mpt2_ioctl_iocinfo {
struct mpt2_ioctl_header hdr;
uint32_t adapter_type;
uint32_t port_number;
uint32_t pci_id;
uint32_t hw_rev;
uint32_t subsystem_device;
uint32_t subsystem_vendor;
uint32_t rsvd0;
uint32_t firmware_version;
uint32_t bios_version;
uint8_t driver_version[MPT2_IOCTL_VERSION_LENGTH];
uint8_t rsvd1;
uint8_t scsi_id;
uint16_t rsvd2;
struct mpt2_ioctl_pci_info pci_information;
};
/* number of event log entries */
#define MPT2SAS_CTL_EVENT_LOG_SIZE (50)
/**
* struct mpt2_ioctl_eventquery - query event count and type
* @hdr - generic header
* @event_entries - number of events returned by get_event_report
* @rsvd - reserved
* @event_types - type of events currently being captured
*/
struct mpt2_ioctl_eventquery {
struct mpt2_ioctl_header hdr;
uint16_t event_entries;
uint16_t rsvd;
uint32_t event_types[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
};
/**
* struct mpt2_ioctl_eventenable - enable/disable event capturing
* @hdr - generic header
* @event_types - toggle off/on type of events to be captured
*/
struct mpt2_ioctl_eventenable {
struct mpt2_ioctl_header hdr;
uint32_t event_types[4];
};
#define MPT2_EVENT_DATA_SIZE (192)
/**
* struct MPT2_IOCTL_EVENTS -
* @event - the event that was reported
* @context - unique value for each event assigned by driver
* @data - event data returned in fw reply message
*/
struct MPT2_IOCTL_EVENTS {
uint32_t event;
uint32_t context;
uint8_t data[MPT2_EVENT_DATA_SIZE];
};
/**
* struct mpt2_ioctl_eventreport - returing event log
* @hdr - generic header
* @event_data - (see struct MPT2_IOCTL_EVENTS)
*/
struct mpt2_ioctl_eventreport {
struct mpt2_ioctl_header hdr;
struct MPT2_IOCTL_EVENTS event_data[1];
};
/**
* struct mpt2_ioctl_command - generic mpt firmware passthru ioclt
* @hdr - generic header
* @timeout - command timeout in seconds. (if zero then use driver default
* value).
* @reply_frame_buf_ptr - reply location
* @data_in_buf_ptr - destination for read
* @data_out_buf_ptr - data source for write
* @sense_data_ptr - sense data location
* @max_reply_bytes - maximum number of reply bytes to be sent to app.
* @data_in_size - number bytes for data transfer in (read)
* @data_out_size - number bytes for data transfer out (write)
* @max_sense_bytes - maximum number of bytes for auto sense buffers
* @data_sge_offset - offset in words from the start of the request message to
* the first SGL
* @mf[1];
*/
struct mpt2_ioctl_command {
struct mpt2_ioctl_header hdr;
uint32_t timeout;
void __user *reply_frame_buf_ptr;
void __user *data_in_buf_ptr;
void __user *data_out_buf_ptr;
void __user *sense_data_ptr;
uint32_t max_reply_bytes;
uint32_t data_in_size;
uint32_t data_out_size;
uint32_t max_sense_bytes;
uint32_t data_sge_offset;
uint8_t mf[1];
};
#ifdef CONFIG_COMPAT
struct mpt2_ioctl_command32 {
struct mpt2_ioctl_header hdr;
uint32_t timeout;
uint32_t reply_frame_buf_ptr;
uint32_t data_in_buf_ptr;
uint32_t data_out_buf_ptr;
uint32_t sense_data_ptr;
uint32_t max_reply_bytes;
uint32_t data_in_size;
uint32_t data_out_size;
uint32_t max_sense_bytes;
uint32_t data_sge_offset;
uint8_t mf[1];
};
#endif
/**
* struct mpt2_ioctl_btdh_mapping - mapping info
* @hdr - generic header
* @id - target device identification number
* @bus - SCSI bus number that the target device exists on
* @handle - device handle for the target device
* @rsvd - reserved
*
* To obtain a bus/id the application sets
* handle to valid handle, and bus/id to 0xFFFF.
*
* To obtain the device handle the application sets
* bus/id valid value, and the handle to 0xFFFF.
*/
struct mpt2_ioctl_btdh_mapping {
struct mpt2_ioctl_header hdr;
uint32_t id;
uint32_t bus;
uint16_t handle;
uint16_t rsvd;
};
/* status bits for ioc->diag_buffer_status */
#define MPT2_DIAG_BUFFER_IS_REGISTERED (0x01)
#define MPT2_DIAG_BUFFER_IS_RELEASED (0x02)
/* application flags for mpt2_diag_register, mpt2_diag_query */
#define MPT2_APP_FLAGS_APP_OWNED (0x0001)
#define MPT2_APP_FLAGS_BUFFER_VALID (0x0002)
#define MPT2_APP_FLAGS_FW_BUFFER_ACCESS (0x0004)
/* flags for mpt2_diag_read_buffer */
#define MPT2_FLAGS_REREGISTER (0x0001)
#define MPT2_PRODUCT_SPECIFIC_DWORDS 23
/**
* struct mpt2_diag_register - application register with driver
* @hdr - generic header
* @reserved -
* @buffer_type - specifies either TRACE or SNAPSHOT
* @application_flags - misc flags
* @diagnostic_flags - specifies flags affecting command processing
* @product_specific - product specific information
* @requested_buffer_size - buffers size in bytes
* @unique_id - tag specified by application that is used to signal ownership
* of the buffer.
*
* This will allow the driver to setup any required buffers that will be
* needed by firmware to communicate with the driver.
*/
struct mpt2_diag_register {
struct mpt2_ioctl_header hdr;
uint8_t reserved;
uint8_t buffer_type;
uint16_t application_flags;
uint32_t diagnostic_flags;
uint32_t product_specific[MPT2_PRODUCT_SPECIFIC_DWORDS];
uint32_t requested_buffer_size;
uint32_t unique_id;
};
/**
* struct mpt2_diag_unregister - application unregister with driver
* @hdr - generic header
* @unique_id - tag uniquely identifies the buffer to be unregistered
*
* This will allow the driver to cleanup any memory allocated for diag
* messages and to free up any resources.
*/
struct mpt2_diag_unregister {
struct mpt2_ioctl_header hdr;
uint32_t unique_id;
};
/**
* struct mpt2_diag_query - query relevant info associated with diag buffers
* @hdr - generic header
* @reserved -
* @buffer_type - specifies either TRACE or SNAPSHOT
* @application_flags - misc flags
* @diagnostic_flags - specifies flags affecting command processing
* @product_specific - product specific information
* @total_buffer_size - diag buffer size in bytes
* @driver_added_buffer_size - size of extra space appended to end of buffer
* @unique_id - unique id associated with this buffer.
*
* The application will send only buffer_type and unique_id. Driver will
* inspect unique_id first, if valid, fill in all the info. If unique_id is
* 0x00, the driver will return info specified by Buffer Type.
*/
struct mpt2_diag_query {
struct mpt2_ioctl_header hdr;
uint8_t reserved;
uint8_t buffer_type;
uint16_t application_flags;
uint32_t diagnostic_flags;
uint32_t product_specific[MPT2_PRODUCT_SPECIFIC_DWORDS];
uint32_t total_buffer_size;
uint32_t driver_added_buffer_size;
uint32_t unique_id;
};
/**
* struct mpt2_diag_release - request to send Diag Release Message to firmware
* @hdr - generic header
* @unique_id - tag uniquely identifies the buffer to be released
*
* This allows ownership of the specified buffer to returned to the driver,
* allowing an application to read the buffer without fear that firmware is
* overwritting information in the buffer.
*/
struct mpt2_diag_release {
struct mpt2_ioctl_header hdr;
uint32_t unique_id;
};
/**
* struct mpt2_diag_read_buffer - request for copy of the diag buffer
* @hdr - generic header
* @status -
* @reserved -
* @flags - misc flags
* @starting_offset - starting offset within drivers buffer where to start
* reading data at into the specified application buffer
* @bytes_to_read - number of bytes to copy from the drivers buffer into the
* application buffer starting at starting_offset.
* @unique_id - unique id associated with this buffer.
* @diagnostic_data - data payload
*/
struct mpt2_diag_read_buffer {
struct mpt2_ioctl_header hdr;
uint8_t status;
uint8_t reserved;
uint16_t flags;
uint32_t starting_offset;
uint32_t bytes_to_read;
uint32_t unique_id;
uint32_t diagnostic_data[1];
};
#endif /* MPT2SAS_CTL_H_INCLUDED */

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/*
* Logging Support for MPT (Message Passing Technology) based controllers
*
* This code is based on drivers/scsi/mpt2sas/mpt2_debug.c
* Copyright (C) 2007-2008 LSI Corporation
* (mailto:DL-MPTFusionLinux@lsi.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#ifndef MPT2SAS_DEBUG_H_INCLUDED
#define MPT2SAS_DEBUG_H_INCLUDED
#define MPT_DEBUG 0x00000001
#define MPT_DEBUG_MSG_FRAME 0x00000002
#define MPT_DEBUG_SG 0x00000004
#define MPT_DEBUG_EVENTS 0x00000008
#define MPT_DEBUG_EVENT_WORK_TASK 0x00000010
#define MPT_DEBUG_INIT 0x00000020
#define MPT_DEBUG_EXIT 0x00000040
#define MPT_DEBUG_FAIL 0x00000080
#define MPT_DEBUG_TM 0x00000100
#define MPT_DEBUG_REPLY 0x00000200
#define MPT_DEBUG_HANDSHAKE 0x00000400
#define MPT_DEBUG_CONFIG 0x00000800
#define MPT_DEBUG_DL 0x00001000
#define MPT_DEBUG_RESET 0x00002000
#define MPT_DEBUG_SCSI 0x00004000
#define MPT_DEBUG_IOCTL 0x00008000
#define MPT_DEBUG_CSMISAS 0x00010000
#define MPT_DEBUG_SAS 0x00020000
#define MPT_DEBUG_TRANSPORT 0x00040000
#define MPT_DEBUG_TASK_SET_FULL 0x00080000
#define MPT_DEBUG_TARGET_MODE 0x00100000
/*
* CONFIG_SCSI_MPT2SAS_LOGGING - enabled in Kconfig
*/
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
#define MPT_CHECK_LOGGING(IOC, CMD, BITS) \
{ \
if (IOC->logging_level & BITS) \
CMD; \
}
#else
#define MPT_CHECK_LOGGING(IOC, CMD, BITS)
#endif /* CONFIG_SCSI_MPT2SAS_LOGGING */
/*
* debug macros
*/
#define dprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG)
#define dsgprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SG)
#define devtprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENTS)
#define dewtprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENT_WORK_TASK)
#define dinitprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_INIT)
#define dexitprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EXIT)
#define dfailprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_FAIL)
#define dtmprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TM)
#define dreplyprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_REPLY)
#define dhsprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_HANDSHAKE)
#define dcprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CONFIG)
#define ddlprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_DL)
#define drsprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_RESET)
#define dsprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SCSI)
#define dctlprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_IOCTL)
#define dcsmisasprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CSMISAS)
#define dsasprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS)
#define dsastransport(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS_WIDE)
#define dmfprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_MSG_FRAME)
#define dtsfprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TASK_SET_FULL)
#define dtransportprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TRANSPORT)
#define dTMprintk(IOC, CMD) \
MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TARGET_MODE)
/* inline functions for dumping debug data*/
#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
/**
* _debug_dump_mf - print message frame contents
* @mpi_request: pointer to message frame
* @sz: number of dwords
*/
static inline void
_debug_dump_mf(void *mpi_request, int sz)
{
int i;
u32 *mfp = (u32 *)mpi_request;
printk(KERN_INFO "mf:\n\t");
for (i = 0; i < sz; i++) {
if (i && ((i % 8) == 0))
printk("\n\t");
printk("%08x ", le32_to_cpu(mfp[i]));
}
printk("\n");
}
#else
#define _debug_dump_mf(mpi_request, sz)
#endif /* CONFIG_SCSI_MPT2SAS_LOGGING */
#endif /* MPT2SAS_DEBUG_H_INCLUDED */

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#
# Kbuild for the OSD modules
#
# Copyright (C) 2008 Panasas Inc. All rights reserved.
#
# Authors:
# Boaz Harrosh <bharrosh@panasas.com>
# Benny Halevy <bhalevy@panasas.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
#
ifneq ($(OSD_INC),)
# we are built out-of-tree Kconfigure everything as on
CONFIG_SCSI_OSD_INITIATOR=m
ccflags-y += -DCONFIG_SCSI_OSD_INITIATOR -DCONFIG_SCSI_OSD_INITIATOR_MODULE
CONFIG_SCSI_OSD_ULD=m
ccflags-y += -DCONFIG_SCSI_OSD_ULD -DCONFIG_SCSI_OSD_ULD_MODULE
# CONFIG_SCSI_OSD_DPRINT_SENSE =
# 0 - no print of errors
# 1 - print errors
# 2 - errors + warrnings
ccflags-y += -DCONFIG_SCSI_OSD_DPRINT_SENSE=1
# Uncomment to turn debug on
# ccflags-y += -DCONFIG_SCSI_OSD_DEBUG
# if we are built out-of-tree and the hosting kernel has OSD headers
# then "ccflags-y +=" will not pick the out-off-tree headers. Only by doing
# this it will work. This might break in future kernels
LINUXINCLUDE := -I$(OSD_INC) $(LINUXINCLUDE)
endif
# libosd.ko - osd-initiator library
libosd-y := osd_initiator.o
obj-$(CONFIG_SCSI_OSD_INITIATOR) += libosd.o
# osd.ko - SCSI ULD and char-device
osd-y := osd_uld.o
obj-$(CONFIG_SCSI_OSD_ULD) += osd.o

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#
# Kernel configuration file for the OSD scsi protocol
#
# Copyright (C) 2008 Panasas Inc. All rights reserved.
#
# Authors:
# Boaz Harrosh <bharrosh@panasas.com>
# Benny Halevy <bhalevy@panasas.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public version 2 License as
# published by the Free Software Foundation
#
# FIXME: SCSI_OSD_INITIATOR should select CONFIG (HMAC) SHA1 somehow.
# How is it done properly?
#
config SCSI_OSD_INITIATOR
tristate "OSD-Initiator library"
depends on SCSI
help
Enable the OSD-Initiator library (libosd.ko).
NOTE: You must also select CRYPTO_SHA1 + CRYPTO_HMAC and their
dependencies
config SCSI_OSD_ULD
tristate "OSD Upper Level driver"
depends on SCSI_OSD_INITIATOR
help
Build a SCSI upper layer driver that exports /dev/osdX devices
to user-mode for testing and controlling OSD devices. It is also
needed by exofs, for mounting an OSD based file system.
config SCSI_OSD_DPRINT_SENSE
int "(0-2) When sense is returned, DEBUG print all sense descriptors"
default 1
depends on SCSI_OSD_INITIATOR
help
When a CHECK_CONDITION status is returned from a target, and a
sense-buffer is retrieved, turning this on will dump a full
sense-decoding message. Setting to 2 will also print recoverable
errors that might be regularly returned for some filesystem
operations.
config SCSI_OSD_DEBUG
bool "Compile All OSD modules with lots of DEBUG prints"
default n
depends on SCSI_OSD_INITIATOR
help
OSD Code is populated with lots of OSD_DEBUG(..) printouts to
dmesg. Enable this if you found a bug and you want to help us
track the problem (see also MAINTAINERS). Setting this will also
force SCSI_OSD_DPRINT_SENSE=2.

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#
# Makefile for the OSD modules (out of tree)
#
# Copyright (C) 2008 Panasas Inc. All rights reserved.
#
# Authors:
# Boaz Harrosh <bharrosh@panasas.com>
# Benny Halevy <bhalevy@panasas.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
#
# This Makefile is used to call the kernel Makefile in case of an out-of-tree
# build.
# $KSRC should point to a Kernel source tree otherwise host's default is
# used. (eg. /lib/modules/`uname -r`/build)
# include path for out-of-tree Headers
OSD_INC ?= `pwd`/../../../include
# allow users to override these
# e.g. to compile for a kernel that you aren't currently running
KSRC ?= /lib/modules/$(shell uname -r)/build
KBUILD_OUTPUT ?=
ARCH ?=
V ?= 0
# this is the basic Kbuild out-of-tree invocation, with the M= option
KBUILD_BASE = +$(MAKE) -C $(KSRC) M=`pwd` KBUILD_OUTPUT=$(KBUILD_OUTPUT) ARCH=$(ARCH) V=$(V)
all: libosd
libosd: ;
$(KBUILD_BASE) OSD_INC=$(OSD_INC) modules
clean:
$(KBUILD_BASE) clean

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/*
* osd_debug.h - Some kprintf macros
*
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
* Boaz Harrosh <bharrosh@panasas.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
*
*/
#ifndef __OSD_DEBUG_H__
#define __OSD_DEBUG_H__
#define OSD_ERR(fmt, a...) printk(KERN_ERR "osd: " fmt, ##a)
#define OSD_INFO(fmt, a...) printk(KERN_NOTICE "osd: " fmt, ##a)
#ifdef CONFIG_SCSI_OSD_DEBUG
#define OSD_DEBUG(fmt, a...) \
printk(KERN_NOTICE "osd @%s:%d: " fmt, __func__, __LINE__, ##a)
#else
#define OSD_DEBUG(fmt, a...) do {} while (0)
#endif
/* u64 has problems with printk this will cast it to unsigned long long */
#define _LLU(x) (unsigned long long)(x)
#endif /* ndef __OSD_DEBUG_H__ */

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/*
* osd_uld.c - OSD Upper Layer Driver
*
* A Linux driver module that registers as a SCSI ULD and probes
* for OSD type SCSI devices.
* It's main function is to export osd devices to in-kernel users like
* osdfs and pNFS-objects-LD. It also provides one ioctl for running
* in Kernel tests.
*
* Copyright (C) 2008 Panasas Inc. All rights reserved.
*
* Authors:
* Boaz Harrosh <bharrosh@panasas.com>
* Benny Halevy <bhalevy@panasas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Panasas company nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/namei.h>
#include <linux/cdev.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/idr.h>
#include <linux/major.h>
#include <scsi/scsi.h>
#include <scsi/scsi_driver.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/osd_initiator.h>
#include <scsi/osd_sec.h>
#include "osd_debug.h"
#ifndef TYPE_OSD
# define TYPE_OSD 0x11
#endif
#ifndef SCSI_OSD_MAJOR
# define SCSI_OSD_MAJOR 260
#endif
#define SCSI_OSD_MAX_MINOR 64
static const char osd_name[] = "osd";
static const char *osd_version_string = "open-osd 0.1.0";
const char osd_symlink[] = "scsi_osd";
MODULE_AUTHOR("Boaz Harrosh <bharrosh@panasas.com>");
MODULE_DESCRIPTION("open-osd Upper-Layer-Driver osd.ko");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CHARDEV_MAJOR(SCSI_OSD_MAJOR);
MODULE_ALIAS_SCSI_DEVICE(TYPE_OSD);
struct osd_uld_device {
int minor;
struct kref kref;
struct cdev cdev;
struct osd_dev od;
struct gendisk *disk;
struct device *class_member;
};
static void __uld_get(struct osd_uld_device *oud);
static void __uld_put(struct osd_uld_device *oud);
/*
* Char Device operations
*/
static int osd_uld_open(struct inode *inode, struct file *file)
{
struct osd_uld_device *oud = container_of(inode->i_cdev,
struct osd_uld_device, cdev);
__uld_get(oud);
/* cache osd_uld_device on file handle */
file->private_data = oud;
OSD_DEBUG("osd_uld_open %p\n", oud);
return 0;
}
static int osd_uld_release(struct inode *inode, struct file *file)
{
struct osd_uld_device *oud = file->private_data;
OSD_DEBUG("osd_uld_release %p\n", file->private_data);
file->private_data = NULL;
__uld_put(oud);
return 0;
}
/* FIXME: Only one vector for now */
unsigned g_test_ioctl;
do_test_fn *g_do_test;
int osduld_register_test(unsigned ioctl, do_test_fn *do_test)
{
if (g_test_ioctl)
return -EINVAL;
g_test_ioctl = ioctl;
g_do_test = do_test;
return 0;
}
EXPORT_SYMBOL(osduld_register_test);
void osduld_unregister_test(unsigned ioctl)
{
if (ioctl == g_test_ioctl) {
g_test_ioctl = 0;
g_do_test = NULL;
}
}
EXPORT_SYMBOL(osduld_unregister_test);
static do_test_fn *_find_ioctl(unsigned cmd)
{
if (g_test_ioctl == cmd)
return g_do_test;
else
return NULL;
}
static long osd_uld_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
struct osd_uld_device *oud = file->private_data;
int ret;
do_test_fn *do_test;
do_test = _find_ioctl(cmd);
if (do_test)
ret = do_test(&oud->od, cmd, arg);
else {
OSD_ERR("Unknown ioctl %d: osd_uld_device=%p\n", cmd, oud);
ret = -ENOIOCTLCMD;
}
return ret;
}
static const struct file_operations osd_fops = {
.owner = THIS_MODULE,
.open = osd_uld_open,
.release = osd_uld_release,
.unlocked_ioctl = osd_uld_ioctl,
};
struct osd_dev *osduld_path_lookup(const char *path)
{
struct nameidata nd;
struct inode *inode;
struct cdev *cdev;
struct osd_uld_device *uninitialized_var(oud);
int error;
if (!path || !*path) {
OSD_ERR("Mount with !path || !*path\n");
return ERR_PTR(-EINVAL);
}
error = path_lookup(path, LOOKUP_FOLLOW, &nd);
if (error) {
OSD_ERR("path_lookup of %s faild=>%d\n", path, error);
return ERR_PTR(error);
}
inode = nd.path.dentry->d_inode;
error = -EINVAL; /* Not the right device e.g osd_uld_device */
if (!S_ISCHR(inode->i_mode)) {
OSD_DEBUG("!S_ISCHR()\n");
goto out;
}
cdev = inode->i_cdev;
if (!cdev) {
OSD_ERR("Before mounting an OSD Based filesystem\n");
OSD_ERR(" user-mode must open+close the %s device\n", path);
OSD_ERR(" Example: bash: echo < %s\n", path);
goto out;
}
/* The Magic wand. Is it our char-dev */
/* TODO: Support sg devices */
if (cdev->owner != THIS_MODULE) {
OSD_ERR("Error mounting %s - is not an OSD device\n", path);
goto out;
}
oud = container_of(cdev, struct osd_uld_device, cdev);
__uld_get(oud);
error = 0;
out:
path_put(&nd.path);
return error ? ERR_PTR(error) : &oud->od;
}
EXPORT_SYMBOL(osduld_path_lookup);
void osduld_put_device(struct osd_dev *od)
{
if (od) {
struct osd_uld_device *oud = container_of(od,
struct osd_uld_device, od);
__uld_put(oud);
}
}
EXPORT_SYMBOL(osduld_put_device);
/*
* Scsi Device operations
*/
static int __detect_osd(struct osd_uld_device *oud)
{
struct scsi_device *scsi_device = oud->od.scsi_device;
char caps[OSD_CAP_LEN];
int error;
/* sending a test_unit_ready as first command seems to be needed
* by some targets
*/
OSD_DEBUG("start scsi_test_unit_ready %p %p %p\n",
oud, scsi_device, scsi_device->request_queue);
error = scsi_test_unit_ready(scsi_device, 10*HZ, 5, NULL);
if (error)
OSD_ERR("warning: scsi_test_unit_ready failed\n");
osd_sec_init_nosec_doall_caps(caps, &osd_root_object, false, true);
if (osd_auto_detect_ver(&oud->od, caps))
return -ENODEV;
return 0;
}
static struct class *osd_sysfs_class;
static DEFINE_IDA(osd_minor_ida);
static int osd_probe(struct device *dev)
{
struct scsi_device *scsi_device = to_scsi_device(dev);
struct gendisk *disk;
struct osd_uld_device *oud;
int minor;
int error;
if (scsi_device->type != TYPE_OSD)
return -ENODEV;
do {
if (!ida_pre_get(&osd_minor_ida, GFP_KERNEL))
return -ENODEV;
error = ida_get_new(&osd_minor_ida, &minor);
} while (error == -EAGAIN);
if (error)
return error;
if (minor >= SCSI_OSD_MAX_MINOR) {
error = -EBUSY;
goto err_retract_minor;
}
error = -ENOMEM;
oud = kzalloc(sizeof(*oud), GFP_KERNEL);
if (NULL == oud)
goto err_retract_minor;
kref_init(&oud->kref);
dev_set_drvdata(dev, oud);
oud->minor = minor;
/* allocate a disk and set it up */
/* FIXME: do we need this since sg has already done that */
disk = alloc_disk(1);
if (!disk) {
OSD_ERR("alloc_disk failed\n");
goto err_free_osd;
}
disk->major = SCSI_OSD_MAJOR;
disk->first_minor = oud->minor;
sprintf(disk->disk_name, "osd%d", oud->minor);
oud->disk = disk;
/* hold one more reference to the scsi_device that will get released
* in __release, in case a logout is happening while fs is mounted
*/
scsi_device_get(scsi_device);
osd_dev_init(&oud->od, scsi_device);
/* Detect the OSD Version */
error = __detect_osd(oud);
if (error) {
OSD_ERR("osd detection failed, non-compatible OSD device\n");
goto err_put_disk;
}
/* init the char-device for communication with user-mode */
cdev_init(&oud->cdev, &osd_fops);
oud->cdev.owner = THIS_MODULE;
error = cdev_add(&oud->cdev,
MKDEV(SCSI_OSD_MAJOR, oud->minor), 1);
if (error) {
OSD_ERR("cdev_add failed\n");
goto err_put_disk;
}
kobject_get(&oud->cdev.kobj); /* 2nd ref see osd_remove() */
/* class_member */
oud->class_member = device_create(osd_sysfs_class, dev,
MKDEV(SCSI_OSD_MAJOR, oud->minor), "%s", disk->disk_name);
if (IS_ERR(oud->class_member)) {
OSD_ERR("class_device_create failed\n");
error = PTR_ERR(oud->class_member);
goto err_put_cdev;
}
dev_set_drvdata(oud->class_member, oud);
error = sysfs_create_link(&scsi_device->sdev_gendev.kobj,
&oud->class_member->kobj, osd_symlink);
if (error)
OSD_ERR("warning: unable to make symlink\n");
OSD_INFO("osd_probe %s\n", disk->disk_name);
return 0;
err_put_cdev:
cdev_del(&oud->cdev);
err_put_disk:
scsi_device_put(scsi_device);
put_disk(disk);
err_free_osd:
dev_set_drvdata(dev, NULL);
kfree(oud);
err_retract_minor:
ida_remove(&osd_minor_ida, minor);
return error;
}
static int osd_remove(struct device *dev)
{
struct scsi_device *scsi_device = to_scsi_device(dev);
struct osd_uld_device *oud = dev_get_drvdata(dev);
if (!oud || (oud->od.scsi_device != scsi_device)) {
OSD_ERR("Half cooked osd-device %p,%p || %p!=%p",
dev, oud, oud ? oud->od.scsi_device : NULL,
scsi_device);
}
sysfs_remove_link(&oud->od.scsi_device->sdev_gendev.kobj, osd_symlink);
if (oud->class_member)
device_destroy(osd_sysfs_class,
MKDEV(SCSI_OSD_MAJOR, oud->minor));
/* We have 2 references to the cdev. One is released here
* and also takes down the /dev/osdX mapping. The second
* Will be released in __remove() after all users have released
* the osd_uld_device.
*/
if (oud->cdev.owner)
cdev_del(&oud->cdev);
__uld_put(oud);
return 0;
}
static void __remove(struct kref *kref)
{
struct osd_uld_device *oud = container_of(kref,
struct osd_uld_device, kref);
struct scsi_device *scsi_device = oud->od.scsi_device;
/* now let delete the char_dev */
kobject_put(&oud->cdev.kobj);
osd_dev_fini(&oud->od);
scsi_device_put(scsi_device);
OSD_INFO("osd_remove %s\n",
oud->disk ? oud->disk->disk_name : NULL);
if (oud->disk)
put_disk(oud->disk);
ida_remove(&osd_minor_ida, oud->minor);
kfree(oud);
}
static void __uld_get(struct osd_uld_device *oud)
{
kref_get(&oud->kref);
}
static void __uld_put(struct osd_uld_device *oud)
{
kref_put(&oud->kref, __remove);
}
/*
* Global driver and scsi registration
*/
static struct scsi_driver osd_driver = {
.owner = THIS_MODULE,
.gendrv = {
.name = osd_name,
.probe = osd_probe,
.remove = osd_remove,
}
};
static int __init osd_uld_init(void)
{
int err;
osd_sysfs_class = class_create(THIS_MODULE, osd_symlink);
if (IS_ERR(osd_sysfs_class)) {
OSD_ERR("Unable to register sysfs class => %ld\n",
PTR_ERR(osd_sysfs_class));
return PTR_ERR(osd_sysfs_class);
}
err = register_chrdev_region(MKDEV(SCSI_OSD_MAJOR, 0),
SCSI_OSD_MAX_MINOR, osd_name);
if (err) {
OSD_ERR("Unable to register major %d for osd ULD => %d\n",
SCSI_OSD_MAJOR, err);
goto err_out;
}
err = scsi_register_driver(&osd_driver.gendrv);
if (err) {
OSD_ERR("scsi_register_driver failed => %d\n", err);
goto err_out_chrdev;
}
OSD_INFO("LOADED %s\n", osd_version_string);
return 0;
err_out_chrdev:
unregister_chrdev_region(MKDEV(SCSI_OSD_MAJOR, 0), SCSI_OSD_MAX_MINOR);
err_out:
class_destroy(osd_sysfs_class);
return err;
}
static void __exit osd_uld_exit(void)
{
scsi_unregister_driver(&osd_driver.gendrv);
unregister_chrdev_region(MKDEV(SCSI_OSD_MAJOR, 0), SCSI_OSD_MAX_MINOR);
class_destroy(osd_sysfs_class);
OSD_INFO("UNLOADED %s\n", osd_version_string);
}
module_init(osd_uld_init);
module_exit(osd_uld_exit);

96
drivers/scsi/osst.c
View File

@ -280,8 +280,8 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt)
static int notyetprinted = 1;
printk(KERN_WARNING
"%s:W: Warning %x (sugg. bt 0x%x, driver bt 0x%x, host bt 0x%x).\n",
name, result, suggestion(result), driver_byte(result) & DRIVER_MASK,
"%s:W: Warning %x (driver bt 0x%x, host bt 0x%x).\n",
name, result, driver_byte(result),
host_byte(result));
if (notyetprinted) {
notyetprinted = 0;
@ -317,18 +317,25 @@ static int osst_chk_result(struct osst_tape * STp, struct osst_request * SRpnt)
/* Wakeup from interrupt */
static void osst_sleep_done(void *data, char *sense, int result, int resid)
static void osst_end_async(struct request *req, int update)
{
struct osst_request *SRpnt = data;
struct osst_request *SRpnt = req->end_io_data;
struct osst_tape *STp = SRpnt->stp;
struct rq_map_data *mdata = &SRpnt->stp->buffer->map_data;
memcpy(SRpnt->sense, sense, SCSI_SENSE_BUFFERSIZE);
STp->buffer->cmdstat.midlevel_result = SRpnt->result = result;
STp->buffer->cmdstat.midlevel_result = SRpnt->result = req->errors;
#if DEBUG
STp->write_pending = 0;
#endif
if (SRpnt->waiting)
complete(SRpnt->waiting);
if (SRpnt->bio) {
kfree(mdata->pages);
blk_rq_unmap_user(SRpnt->bio);
}
__blk_put_request(req->q, req);
}
/* osst_request memory management */
@ -342,6 +349,74 @@ static void osst_release_request(struct osst_request *streq)
kfree(streq);
}
static int osst_execute(struct osst_request *SRpnt, const unsigned char *cmd,
int cmd_len, int data_direction, void *buffer, unsigned bufflen,
int use_sg, int timeout, int retries)
{
struct request *req;
struct page **pages = NULL;
struct rq_map_data *mdata = &SRpnt->stp->buffer->map_data;
int err = 0;
int write = (data_direction == DMA_TO_DEVICE);
req = blk_get_request(SRpnt->stp->device->request_queue, write, GFP_KERNEL);
if (!req)
return DRIVER_ERROR << 24;
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_QUIET;
SRpnt->bio = NULL;
if (use_sg) {
struct scatterlist *sg, *sgl = (struct scatterlist *)buffer;
int i;
pages = kzalloc(use_sg * sizeof(struct page *), GFP_KERNEL);
if (!pages)
goto free_req;
for_each_sg(sgl, sg, use_sg, i)
pages[i] = sg_page(sg);
mdata->null_mapped = 1;
mdata->page_order = get_order(sgl[0].length);
mdata->nr_entries =
DIV_ROUND_UP(bufflen, PAGE_SIZE << mdata->page_order);
mdata->offset = 0;
err = blk_rq_map_user(req->q, req, mdata, NULL, bufflen, GFP_KERNEL);
if (err) {
kfree(pages);
goto free_req;
}
SRpnt->bio = req->bio;
mdata->pages = pages;
} else if (bufflen) {
err = blk_rq_map_kern(req->q, req, buffer, bufflen, GFP_KERNEL);
if (err)
goto free_req;
}
req->cmd_len = cmd_len;
memset(req->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */
memcpy(req->cmd, cmd, req->cmd_len);
req->sense = SRpnt->sense;
req->sense_len = 0;
req->timeout = timeout;
req->retries = retries;
req->end_io_data = SRpnt;
blk_execute_rq_nowait(req->q, NULL, req, 1, osst_end_async);
return 0;
free_req:
blk_put_request(req);
return DRIVER_ERROR << 24;
}
/* Do the scsi command. Waits until command performed if do_wait is true.
Otherwise osst_write_behind_check() is used to check that the command
has finished. */
@ -403,8 +478,8 @@ static struct osst_request * osst_do_scsi(struct osst_request *SRpnt, struct oss
STp->buffer->cmdstat.have_sense = 0;
STp->buffer->syscall_result = 0;
if (scsi_execute_async(STp->device, cmd, COMMAND_SIZE(cmd[0]), direction, bp, bytes,
use_sg, timeout, retries, SRpnt, osst_sleep_done, GFP_KERNEL))
if (osst_execute(SRpnt, cmd, COMMAND_SIZE(cmd[0]), direction, bp, bytes,
use_sg, timeout, retries))
/* could not allocate the buffer or request was too large */
(STp->buffer)->syscall_result = (-EBUSY);
else if (do_wait) {
@ -5286,11 +5361,6 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
struct page *page = alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order);
STbuffer->sg[segs].offset = 0;
if (page == NULL) {
if (OS_FRAME_SIZE - got <= (max_segs - segs) * b_size / 2 && order) {
b_size /= 2; /* Large enough for the rest of the buffers */
order--;
continue;
}
printk(KERN_WARNING "osst :W: Failed to enlarge buffer to %d bytes.\n",
OS_FRAME_SIZE);
#if DEBUG

2
drivers/scsi/osst.h
View File

@ -520,6 +520,7 @@ struct osst_buffer {
int syscall_result;
struct osst_request *last_SRpnt;
struct st_cmdstatus cmdstat;
struct rq_map_data map_data;
unsigned char *b_data;
os_aux_t *aux; /* onstream AUX structure at end of each block */
unsigned short use_sg; /* zero or number of s/g segments for this adapter */
@ -634,6 +635,7 @@ struct osst_request {
int result;
struct osst_tape *stp;
struct completion *waiting;
struct bio *bio;
};
/* Values of write_type */

104
drivers/scsi/scsi.c
View File

@ -966,6 +966,110 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
}
EXPORT_SYMBOL(scsi_track_queue_full);
/**
* scsi_vpd_inquiry - Request a device provide us with a VPD page
* @sdev: The device to ask
* @buffer: Where to put the result
* @page: Which Vital Product Data to return
* @len: The length of the buffer
*
* This is an internal helper function. You probably want to use
* scsi_get_vpd_page instead.
*
* Returns 0 on success or a negative error number.
*/
static int scsi_vpd_inquiry(struct scsi_device *sdev, unsigned char *buffer,
u8 page, unsigned len)
{
int result;
unsigned char cmd[16];
cmd[0] = INQUIRY;
cmd[1] = 1; /* EVPD */
cmd[2] = page;
cmd[3] = len >> 8;
cmd[4] = len & 0xff;
cmd[5] = 0; /* Control byte */
/*
* I'm not convinced we need to try quite this hard to get VPD, but
* all the existing users tried this hard.
*/
result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer,
len + 4, NULL, 30 * HZ, 3, NULL);
if (result)
return result;
/* Sanity check that we got the page back that we asked for */
if (buffer[1] != page)
return -EIO;
return 0;
}
/**
* scsi_get_vpd_page - Get Vital Product Data from a SCSI device
* @sdev: The device to ask
* @page: Which Vital Product Data to return
*
* SCSI devices may optionally supply Vital Product Data. Each 'page'
* of VPD is defined in the appropriate SCSI document (eg SPC, SBC).
* If the device supports this VPD page, this routine returns a pointer
* to a buffer containing the data from that page. The caller is
* responsible for calling kfree() on this pointer when it is no longer
* needed. If we cannot retrieve the VPD page this routine returns %NULL.
*/
unsigned char *scsi_get_vpd_page(struct scsi_device *sdev, u8 page)
{
int i, result;
unsigned int len;
unsigned char *buf = kmalloc(259, GFP_KERNEL);
if (!buf)
return NULL;
/* Ask for all the pages supported by this device */
result = scsi_vpd_inquiry(sdev, buf, 0, 255);
if (result)
goto fail;
/* If the user actually wanted this page, we can skip the rest */
if (page == 0)
return buf;
for (i = 0; i < buf[3]; i++)
if (buf[i + 4] == page)
goto found;
/* The device claims it doesn't support the requested page */
goto fail;
found:
result = scsi_vpd_inquiry(sdev, buf, page, 255);
if (result)
goto fail;
/*
* Some pages are longer than 255 bytes. The actual length of
* the page is returned in the header.
*/
len = (buf[2] << 8) | buf[3];
if (len <= 255)
return buf;
kfree(buf);
buf = kmalloc(len + 4, GFP_KERNEL);
result = scsi_vpd_inquiry(sdev, buf, page, len);
if (result)
goto fail;
return buf;
fail:
kfree(buf);
return NULL;
}
EXPORT_SYMBOL_GPL(scsi_get_vpd_page);
/**
* scsi_device_get - get an additional reference to a scsi_device
* @sdev: device to get a reference to

441
drivers/scsi/scsi_debug.c
View File

@ -40,6 +40,9 @@
#include <linux/moduleparam.h>
#include <linux/scatterlist.h>
#include <linux/blkdev.h>
#include <linux/crc-t10dif.h>
#include <net/checksum.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@ -48,8 +51,7 @@
#include <scsi/scsicam.h>
#include <scsi/scsi_eh.h>
#include <linux/stat.h>
#include "sd.h"
#include "scsi_logging.h"
#define SCSI_DEBUG_VERSION "1.81"
@ -95,6 +97,10 @@ static const char * scsi_debug_version_date = "20070104";
#define DEF_FAKE_RW 0
#define DEF_VPD_USE_HOSTNO 1
#define DEF_SECTOR_SIZE 512
#define DEF_DIX 0
#define DEF_DIF 0
#define DEF_GUARD 0
#define DEF_ATO 1
/* bit mask values for scsi_debug_opts */
#define SCSI_DEBUG_OPT_NOISE 1
@ -102,6 +108,8 @@ static const char * scsi_debug_version_date = "20070104";
#define SCSI_DEBUG_OPT_TIMEOUT 4
#define SCSI_DEBUG_OPT_RECOVERED_ERR 8
#define SCSI_DEBUG_OPT_TRANSPORT_ERR 16
#define SCSI_DEBUG_OPT_DIF_ERR 32
#define SCSI_DEBUG_OPT_DIX_ERR 64
/* When "every_nth" > 0 then modulo "every_nth" commands:
* - a no response is simulated if SCSI_DEBUG_OPT_TIMEOUT is set
* - a RECOVERED_ERROR is simulated on successful read and write
@ -144,6 +152,10 @@ static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB;
static int scsi_debug_fake_rw = DEF_FAKE_RW;
static int scsi_debug_vpd_use_hostno = DEF_VPD_USE_HOSTNO;
static int scsi_debug_sector_size = DEF_SECTOR_SIZE;
static int scsi_debug_dix = DEF_DIX;
static int scsi_debug_dif = DEF_DIF;
static int scsi_debug_guard = DEF_GUARD;
static int scsi_debug_ato = DEF_ATO;
static int scsi_debug_cmnd_count = 0;
@ -204,11 +216,15 @@ struct sdebug_queued_cmd {
static struct sdebug_queued_cmd queued_arr[SCSI_DEBUG_CANQUEUE];
static unsigned char * fake_storep; /* ramdisk storage */
static unsigned char *dif_storep; /* protection info */
static int num_aborts = 0;
static int num_dev_resets = 0;
static int num_bus_resets = 0;
static int num_host_resets = 0;
static int dix_writes;
static int dix_reads;
static int dif_errors;
static DEFINE_SPINLOCK(queued_arr_lock);
static DEFINE_RWLOCK(atomic_rw);
@ -217,6 +233,11 @@ static char sdebug_proc_name[] = "scsi_debug";
static struct bus_type pseudo_lld_bus;
static inline sector_t dif_offset(sector_t sector)
{
return sector << 3;
}
static struct device_driver sdebug_driverfs_driver = {
.name = sdebug_proc_name,
.bus = &pseudo_lld_bus,
@ -225,6 +246,9 @@ static struct device_driver sdebug_driverfs_driver = {
static const int check_condition_result =
(DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
static const int illegal_condition_result =
(DRIVER_SENSE << 24) | (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION;
static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
0, 0, 0x2, 0x4b};
static unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
@ -726,6 +750,11 @@ static int resp_inquiry(struct scsi_cmnd * scp, int target,
} else if (0x86 == cmd[2]) { /* extended inquiry */
arr[1] = cmd[2]; /*sanity */
arr[3] = 0x3c; /* number of following entries */
if (scsi_debug_dif == SD_DIF_TYPE3_PROTECTION)
arr[4] = 0x4; /* SPT: GRD_CHK:1 */
else if (scsi_debug_dif)
arr[4] = 0x5; /* SPT: GRD_CHK:1, REF_CHK:1 */
else
arr[4] = 0x0; /* no protection stuff */
arr[5] = 0x7; /* head of q, ordered + simple q's */
} else if (0x87 == cmd[2]) { /* mode page policy */
@ -767,6 +796,7 @@ static int resp_inquiry(struct scsi_cmnd * scp, int target,
arr[2] = scsi_debug_scsi_level;
arr[3] = 2; /* response_data_format==2 */
arr[4] = SDEBUG_LONG_INQ_SZ - 5;
arr[5] = scsi_debug_dif ? 1 : 0; /* PROTECT bit */
if (0 == scsi_debug_vpd_use_hostno)
arr[5] = 0x10; /* claim: implicit TGPS */
arr[6] = 0x10; /* claim: MultiP */
@ -915,6 +945,12 @@ static int resp_readcap16(struct scsi_cmnd * scp,
arr[9] = (scsi_debug_sector_size >> 16) & 0xff;
arr[10] = (scsi_debug_sector_size >> 8) & 0xff;
arr[11] = scsi_debug_sector_size & 0xff;
if (scsi_debug_dif) {
arr[12] = (scsi_debug_dif - 1) << 1; /* P_TYPE */
arr[12] |= 1; /* PROT_EN */
}
return fill_from_dev_buffer(scp, arr,
min(alloc_len, SDEBUG_READCAP16_ARR_SZ));
}
@ -1066,6 +1102,10 @@ static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target)
ctrl_m_pg[2] |= 0x4;
else
ctrl_m_pg[2] &= ~0x4;
if (scsi_debug_ato)
ctrl_m_pg[5] |= 0x80; /* ATO=1 */
memcpy(p, ctrl_m_pg, sizeof(ctrl_m_pg));
if (1 == pcontrol)
memcpy(p + 2, ch_ctrl_m_pg, sizeof(ch_ctrl_m_pg));
@ -1536,6 +1576,87 @@ static int do_device_access(struct scsi_cmnd *scmd,
return ret;
}
static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
unsigned int sectors)
{
unsigned int i, resid;
struct scatterlist *psgl;
struct sd_dif_tuple *sdt;
sector_t sector;
sector_t tmp_sec = start_sec;
void *paddr;
start_sec = do_div(tmp_sec, sdebug_store_sectors);
sdt = (struct sd_dif_tuple *)(dif_storep + dif_offset(start_sec));
for (i = 0 ; i < sectors ; i++) {
u16 csum;
if (sdt[i].app_tag == 0xffff)
continue;
sector = start_sec + i;
switch (scsi_debug_guard) {
case 1:
csum = ip_compute_csum(fake_storep +
sector * scsi_debug_sector_size,
scsi_debug_sector_size);
break;
case 0:
csum = crc_t10dif(fake_storep +
sector * scsi_debug_sector_size,
scsi_debug_sector_size);
csum = cpu_to_be16(csum);
break;
default:
BUG();
}
if (sdt[i].guard_tag != csum) {
printk(KERN_ERR "%s: GUARD check failed on sector %lu" \
" rcvd 0x%04x, data 0x%04x\n", __func__,
(unsigned long)sector,
be16_to_cpu(sdt[i].guard_tag),
be16_to_cpu(csum));
dif_errors++;
return 0x01;
}
if (scsi_debug_dif != SD_DIF_TYPE3_PROTECTION &&
be32_to_cpu(sdt[i].ref_tag) != (sector & 0xffffffff)) {
printk(KERN_ERR "%s: REF check failed on sector %lu\n",
__func__, (unsigned long)sector);
dif_errors++;
return 0x03;
}
}
resid = sectors * 8; /* Bytes of protection data to copy into sgl */
sector = start_sec;
scsi_for_each_prot_sg(SCpnt, psgl, scsi_prot_sg_count(SCpnt), i) {
int len = min(psgl->length, resid);
paddr = kmap_atomic(sg_page(psgl), KM_IRQ0) + psgl->offset;
memcpy(paddr, dif_storep + dif_offset(sector), len);
sector += len >> 3;
if (sector >= sdebug_store_sectors) {
/* Force wrap */
tmp_sec = sector;
sector = do_div(tmp_sec, sdebug_store_sectors);
}
resid -= len;
kunmap_atomic(paddr, KM_IRQ0);
}
dix_reads++;
return 0;
}
static int resp_read(struct scsi_cmnd *SCpnt, unsigned long long lba,
unsigned int num, struct sdebug_dev_info *devip)
{
@ -1563,12 +1684,162 @@ static int resp_read(struct scsi_cmnd *SCpnt, unsigned long long lba,
}
return check_condition_result;
}
/* DIX + T10 DIF */
if (scsi_debug_dix && scsi_prot_sg_count(SCpnt)) {
int prot_ret = prot_verify_read(SCpnt, lba, num);
if (prot_ret) {
mk_sense_buffer(devip, ABORTED_COMMAND, 0x10, prot_ret);
return illegal_condition_result;
}
}
read_lock_irqsave(&atomic_rw, iflags);
ret = do_device_access(SCpnt, devip, lba, num, 0);
read_unlock_irqrestore(&atomic_rw, iflags);
return ret;
}
void dump_sector(unsigned char *buf, int len)
{
int i, j;
printk(KERN_ERR ">>> Sector Dump <<<\n");
for (i = 0 ; i < len ; i += 16) {
printk(KERN_ERR "%04d: ", i);
for (j = 0 ; j < 16 ; j++) {
unsigned char c = buf[i+j];
if (c >= 0x20 && c < 0x7e)
printk(" %c ", buf[i+j]);
else
printk("%02x ", buf[i+j]);
}
printk("\n");
}
}
static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
unsigned int sectors)
{
int i, j, ret;
struct sd_dif_tuple *sdt;
struct scatterlist *dsgl = scsi_sglist(SCpnt);
struct scatterlist *psgl = scsi_prot_sglist(SCpnt);
void *daddr, *paddr;
sector_t tmp_sec = start_sec;
sector_t sector;
int ppage_offset;
unsigned short csum;
sector = do_div(tmp_sec, sdebug_store_sectors);
if (((SCpnt->cmnd[1] >> 5) & 7) != 1) {
printk(KERN_WARNING "scsi_debug: WRPROTECT != 1\n");
return 0;
}
BUG_ON(scsi_sg_count(SCpnt) == 0);
BUG_ON(scsi_prot_sg_count(SCpnt) == 0);
paddr = kmap_atomic(sg_page(psgl), KM_IRQ1) + psgl->offset;
ppage_offset = 0;
/* For each data page */
scsi_for_each_sg(SCpnt, dsgl, scsi_sg_count(SCpnt), i) {
daddr = kmap_atomic(sg_page(dsgl), KM_IRQ0) + dsgl->offset;
/* For each sector-sized chunk in data page */
for (j = 0 ; j < dsgl->length ; j += scsi_debug_sector_size) {
/* If we're at the end of the current
* protection page advance to the next one
*/
if (ppage_offset >= psgl->length) {
kunmap_atomic(paddr, KM_IRQ1);
psgl = sg_next(psgl);
BUG_ON(psgl == NULL);
paddr = kmap_atomic(sg_page(psgl), KM_IRQ1)
+ psgl->offset;
ppage_offset = 0;
}
sdt = paddr + ppage_offset;
switch (scsi_debug_guard) {
case 1:
csum = ip_compute_csum(daddr,
scsi_debug_sector_size);
break;
case 0:
csum = cpu_to_be16(crc_t10dif(daddr,
scsi_debug_sector_size));
break;
default:
BUG();
ret = 0;
goto out;
}
if (sdt->guard_tag != csum) {
printk(KERN_ERR
"%s: GUARD check failed on sector %lu " \
"rcvd 0x%04x, calculated 0x%04x\n",
__func__, (unsigned long)sector,
be16_to_cpu(sdt->guard_tag),
be16_to_cpu(csum));
ret = 0x01;
dump_sector(daddr, scsi_debug_sector_size);
goto out;
}
if (scsi_debug_dif != SD_DIF_TYPE3_PROTECTION &&
be32_to_cpu(sdt->ref_tag)
!= (start_sec & 0xffffffff)) {
printk(KERN_ERR
"%s: REF check failed on sector %lu\n",
__func__, (unsigned long)sector);
ret = 0x03;
dump_sector(daddr, scsi_debug_sector_size);
goto out;
}
/* Would be great to copy this in bigger
* chunks. However, for the sake of
* correctness we need to verify each sector
* before writing it to "stable" storage
*/
memcpy(dif_storep + dif_offset(sector), sdt, 8);
sector++;
if (sector == sdebug_store_sectors)
sector = 0; /* Force wrap */
start_sec++;
daddr += scsi_debug_sector_size;
ppage_offset += sizeof(struct sd_dif_tuple);
}
kunmap_atomic(daddr, KM_IRQ0);
}
kunmap_atomic(paddr, KM_IRQ1);
dix_writes++;
return 0;
out:
dif_errors++;
kunmap_atomic(daddr, KM_IRQ0);
kunmap_atomic(paddr, KM_IRQ1);
return ret;
}
static int resp_write(struct scsi_cmnd *SCpnt, unsigned long long lba,
unsigned int num, struct sdebug_dev_info *devip)
{
@ -1579,6 +1850,16 @@ static int resp_write(struct scsi_cmnd *SCpnt, unsigned long long lba,
if (ret)
return ret;
/* DIX + T10 DIF */
if (scsi_debug_dix && scsi_prot_sg_count(SCpnt)) {
int prot_ret = prot_verify_write(SCpnt, lba, num);
if (prot_ret) {
mk_sense_buffer(devip, ILLEGAL_REQUEST, 0x10, prot_ret);
return illegal_condition_result;
}
}
write_lock_irqsave(&atomic_rw, iflags);
ret = do_device_access(SCpnt, devip, lba, num, 1);
write_unlock_irqrestore(&atomic_rw, iflags);
@ -2095,6 +2376,10 @@ module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR);
module_param_named(vpd_use_hostno, scsi_debug_vpd_use_hostno, int,
S_IRUGO | S_IWUSR);
module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO);
module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
@ -2117,7 +2402,10 @@ MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=5[SPC-3])");
MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
MODULE_PARM_DESC(sector_size, "hardware sector size in bytes (def=512)");
MODULE_PARM_DESC(dix, "data integrity extensions mask (def=0)");
MODULE_PARM_DESC(dif, "data integrity field type: 0-3 (def=0)");
MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
static char sdebug_info[256];
@ -2164,14 +2452,14 @@ static int scsi_debug_proc_info(struct Scsi_Host *host, char *buffer, char **sta
"delay=%d, max_luns=%d, scsi_level=%d\n"
"sector_size=%d bytes, cylinders=%d, heads=%d, sectors=%d\n"
"number of aborts=%d, device_reset=%d, bus_resets=%d, "
"host_resets=%d\n",
"host_resets=%d\ndix_reads=%d dix_writes=%d dif_errors=%d\n",
SCSI_DEBUG_VERSION, scsi_debug_version_date, scsi_debug_num_tgts,
scsi_debug_dev_size_mb, scsi_debug_opts, scsi_debug_every_nth,
scsi_debug_cmnd_count, scsi_debug_delay,
scsi_debug_max_luns, scsi_debug_scsi_level,
scsi_debug_sector_size, sdebug_cylinders_per, sdebug_heads,
sdebug_sectors_per, num_aborts, num_dev_resets, num_bus_resets,
num_host_resets);
num_host_resets, dix_reads, dix_writes, dif_errors);
if (pos < offset) {
len = 0;
begin = pos;
@ -2452,6 +2740,31 @@ static ssize_t sdebug_sector_size_show(struct device_driver * ddp, char * buf)
}
DRIVER_ATTR(sector_size, S_IRUGO, sdebug_sector_size_show, NULL);
static ssize_t sdebug_dix_show(struct device_driver *ddp, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dix);
}
DRIVER_ATTR(dix, S_IRUGO, sdebug_dix_show, NULL);
static ssize_t sdebug_dif_show(struct device_driver *ddp, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_dif);
}
DRIVER_ATTR(dif, S_IRUGO, sdebug_dif_show, NULL);
static ssize_t sdebug_guard_show(struct device_driver *ddp, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_guard);
}
DRIVER_ATTR(guard, S_IRUGO, sdebug_guard_show, NULL);
static ssize_t sdebug_ato_show(struct device_driver *ddp, char *buf)
{
return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_ato);
}
DRIVER_ATTR(ato, S_IRUGO, sdebug_ato_show, NULL);
/* Note: The following function creates attribute files in the
/sys/bus/pseudo/drivers/scsi_debug directory. The advantage of these
files (over those found in the /sys/module/scsi_debug/parameters
@ -2478,11 +2791,19 @@ static int do_create_driverfs_files(void)
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_virtual_gb);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_vpd_use_hostno);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_sector_size);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_dix);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_dif);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_guard);
ret |= driver_create_file(&sdebug_driverfs_driver, &driver_attr_ato);
return ret;
}
static void do_remove_driverfs_files(void)
{
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_ato);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_guard);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dif);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dix);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_sector_size);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_vpd_use_hostno);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_virtual_gb);
@ -2526,11 +2847,33 @@ static int __init scsi_debug_init(void)
case 4096:
break;
default:
printk(KERN_ERR "scsi_debug_init: invalid sector_size %u\n",
printk(KERN_ERR "scsi_debug_init: invalid sector_size %d\n",
scsi_debug_sector_size);
return -EINVAL;
}
switch (scsi_debug_dif) {
case SD_DIF_TYPE0_PROTECTION:
case SD_DIF_TYPE1_PROTECTION:
case SD_DIF_TYPE3_PROTECTION:
break;
default:
printk(KERN_ERR "scsi_debug_init: dif must be 0, 1 or 3\n");
return -EINVAL;
}
if (scsi_debug_guard > 1) {
printk(KERN_ERR "scsi_debug_init: guard must be 0 or 1\n");
return -EINVAL;
}
if (scsi_debug_ato > 1) {
printk(KERN_ERR "scsi_debug_init: ato must be 0 or 1\n");
return -EINVAL;
}
if (scsi_debug_dev_size_mb < 1)
scsi_debug_dev_size_mb = 1; /* force minimum 1 MB ramdisk */
sz = (unsigned long)scsi_debug_dev_size_mb * 1048576;
@ -2563,6 +2906,24 @@ static int __init scsi_debug_init(void)
if (scsi_debug_num_parts > 0)
sdebug_build_parts(fake_storep, sz);
if (scsi_debug_dif) {
int dif_size;
dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
dif_storep = vmalloc(dif_size);
printk(KERN_ERR "scsi_debug_init: dif_storep %u bytes @ %p\n",
dif_size, dif_storep);
if (dif_storep == NULL) {
printk(KERN_ERR "scsi_debug_init: out of mem. (DIX)\n");
ret = -ENOMEM;
goto free_vm;
}
memset(dif_storep, 0xff, dif_size);
}
ret = device_register(&pseudo_primary);
if (ret < 0) {
printk(KERN_WARNING "scsi_debug: device_register error: %d\n",
@ -2615,6 +2976,8 @@ static int __init scsi_debug_init(void)
dev_unreg:
device_unregister(&pseudo_primary);
free_vm:
if (dif_storep)
vfree(dif_storep);
vfree(fake_storep);
return ret;
@ -2632,6 +2995,9 @@ static void __exit scsi_debug_exit(void)
bus_unregister(&pseudo_lld_bus);
device_unregister(&pseudo_primary);
if (dif_storep)
vfree(dif_storep);
vfree(fake_storep);
}
@ -2732,6 +3098,8 @@ int scsi_debug_queuecommand(struct scsi_cmnd *SCpnt, done_funct_t done)
struct sdebug_dev_info *devip = NULL;
int inj_recovered = 0;
int inj_transport = 0;
int inj_dif = 0;
int inj_dix = 0;
int delay_override = 0;
scsi_set_resid(SCpnt, 0);
@ -2769,6 +3137,10 @@ int scsi_debug_queuecommand(struct scsi_cmnd *SCpnt, done_funct_t done)
inj_recovered = 1; /* to reads and writes below */
else if (SCSI_DEBUG_OPT_TRANSPORT_ERR & scsi_debug_opts)
inj_transport = 1; /* to reads and writes below */
else if (SCSI_DEBUG_OPT_DIF_ERR & scsi_debug_opts)
inj_dif = 1; /* to reads and writes below */
else if (SCSI_DEBUG_OPT_DIX_ERR & scsi_debug_opts)
inj_dix = 1; /* to reads and writes below */
}
if (devip->wlun) {
@ -2870,6 +3242,12 @@ int scsi_debug_queuecommand(struct scsi_cmnd *SCpnt, done_funct_t done)
mk_sense_buffer(devip, ABORTED_COMMAND,
TRANSPORT_PROBLEM, ACK_NAK_TO);
errsts = check_condition_result;
} else if (inj_dif && (0 == errsts)) {
mk_sense_buffer(devip, ABORTED_COMMAND, 0x10, 1);
errsts = illegal_condition_result;
} else if (inj_dix && (0 == errsts)) {
mk_sense_buffer(devip, ILLEGAL_REQUEST, 0x10, 1);
errsts = illegal_condition_result;
}
break;
case REPORT_LUNS: /* mandatory, ignore unit attention */
@ -2894,6 +3272,12 @@ int scsi_debug_queuecommand(struct scsi_cmnd *SCpnt, done_funct_t done)
mk_sense_buffer(devip, RECOVERED_ERROR,
THRESHOLD_EXCEEDED, 0);
errsts = check_condition_result;
} else if (inj_dif && (0 == errsts)) {
mk_sense_buffer(devip, ABORTED_COMMAND, 0x10, 1);
errsts = illegal_condition_result;
} else if (inj_dix && (0 == errsts)) {
mk_sense_buffer(devip, ILLEGAL_REQUEST, 0x10, 1);
errsts = illegal_condition_result;
}
break;
case MODE_SENSE:
@ -2982,6 +3366,7 @@ static int sdebug_driver_probe(struct device * dev)
int error = 0;
struct sdebug_host_info *sdbg_host;
struct Scsi_Host *hpnt;
int host_prot;
sdbg_host = to_sdebug_host(dev);
@ -3000,6 +3385,50 @@ static int sdebug_driver_probe(struct device * dev)
hpnt->max_id = scsi_debug_num_tgts;
hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; /* = scsi_debug_max_luns; */
host_prot = 0;
switch (scsi_debug_dif) {
case SD_DIF_TYPE1_PROTECTION:
host_prot = SHOST_DIF_TYPE1_PROTECTION;
if (scsi_debug_dix)
host_prot |= SHOST_DIX_TYPE1_PROTECTION;
break;
case SD_DIF_TYPE2_PROTECTION:
host_prot = SHOST_DIF_TYPE2_PROTECTION;
if (scsi_debug_dix)
host_prot |= SHOST_DIX_TYPE2_PROTECTION;
break;
case SD_DIF_TYPE3_PROTECTION:
host_prot = SHOST_DIF_TYPE3_PROTECTION;
if (scsi_debug_dix)
host_prot |= SHOST_DIX_TYPE3_PROTECTION;
break;
default:
if (scsi_debug_dix)
host_prot |= SHOST_DIX_TYPE0_PROTECTION;
break;
}
scsi_host_set_prot(hpnt, host_prot);
printk(KERN_INFO "scsi_debug: host protection%s%s%s%s%s%s%s\n",
(host_prot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "",
(host_prot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "",
(host_prot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "",
(host_prot & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "",
(host_prot & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "",
(host_prot & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "",
(host_prot & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : "");
if (scsi_debug_guard == 1)
scsi_host_set_guard(hpnt, SHOST_DIX_GUARD_IP);
else
scsi_host_set_guard(hpnt, SHOST_DIX_GUARD_CRC);
error = scsi_add_host(hpnt, &sdbg_host->dev);
if (error) {
printk(KERN_ERR "%s: scsi_add_host failed\n", __func__);

34
drivers/scsi/scsi_error.c
View File

@ -1441,6 +1441,11 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
}
}
static void eh_lock_door_done(struct request *req, int uptodate)
{
__blk_put_request(req->q, req);
}
/**
* scsi_eh_lock_door - Prevent medium removal for the specified device
* @sdev: SCSI device to prevent medium removal
@ -1463,20 +1468,29 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
*/
static void scsi_eh_lock_door(struct scsi_device *sdev)
{
unsigned char cmnd[MAX_COMMAND_SIZE];
struct request *req;
cmnd[0] = ALLOW_MEDIUM_REMOVAL;
cmnd[1] = 0;
cmnd[2] = 0;
cmnd[3] = 0;
cmnd[4] = SCSI_REMOVAL_PREVENT;
cmnd[5] = 0;
req = blk_get_request(sdev->request_queue, READ, GFP_KERNEL);
if (!req)
return;
scsi_execute_async(sdev, cmnd, 6, DMA_NONE, NULL, 0, 0, 10 * HZ,
5, NULL, NULL, GFP_KERNEL);
req->cmd[0] = ALLOW_MEDIUM_REMOVAL;
req->cmd[1] = 0;
req->cmd[2] = 0;
req->cmd[3] = 0;
req->cmd[4] = SCSI_REMOVAL_PREVENT;
req->cmd[5] = 0;
req->cmd_len = COMMAND_SIZE(req->cmd[0]);
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_QUIET;
req->timeout = 10 * HZ;
req->retries = 5;
blk_execute_rq_nowait(req->q, NULL, req, 1, eh_lock_door_done);
}
/**
* scsi_restart_operations - restart io operations to the specified host.
* @shost: Host we are restarting.

203
drivers/scsi/scsi_lib.c
View File

@ -277,196 +277,6 @@ int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
}
EXPORT_SYMBOL(scsi_execute_req);
struct scsi_io_context {
void *data;
void (*done)(void *data, char *sense, int result, int resid);
char sense[SCSI_SENSE_BUFFERSIZE];
};
static struct kmem_cache *scsi_io_context_cache;
static void scsi_end_async(struct request *req, int uptodate)
{
struct scsi_io_context *sioc = req->end_io_data;
if (sioc->done)
sioc->done(sioc->data, sioc->sense, req->errors, req->data_len);
kmem_cache_free(scsi_io_context_cache, sioc);
__blk_put_request(req->q, req);
}
static int scsi_merge_bio(struct request *rq, struct bio *bio)
{
struct request_queue *q = rq->q;
bio->bi_flags &= ~(1 << BIO_SEG_VALID);
if (rq_data_dir(rq) == WRITE)
bio->bi_rw |= (1 << BIO_RW);
blk_queue_bounce(q, &bio);
return blk_rq_append_bio(q, rq, bio);
}
static void scsi_bi_endio(struct bio *bio, int error)
{
bio_put(bio);
}
/**
* scsi_req_map_sg - map a scatterlist into a request
* @rq: request to fill
* @sgl: scatterlist
* @nsegs: number of elements
* @bufflen: len of buffer
* @gfp: memory allocation flags
*
* scsi_req_map_sg maps a scatterlist into a request so that the
* request can be sent to the block layer. We do not trust the scatterlist
* sent to use, as some ULDs use that struct to only organize the pages.
*/
static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl,
int nsegs, unsigned bufflen, gfp_t gfp)
{
struct request_queue *q = rq->q;
int nr_pages = (bufflen + sgl[0].offset + PAGE_SIZE - 1) >> PAGE_SHIFT;
unsigned int data_len = bufflen, len, bytes, off;
struct scatterlist *sg;
struct page *page;
struct bio *bio = NULL;
int i, err, nr_vecs = 0;
for_each_sg(sgl, sg, nsegs, i) {
page = sg_page(sg);
off = sg->offset;
len = sg->length;
while (len > 0 && data_len > 0) {
/*
* sg sends a scatterlist that is larger than
* the data_len it wants transferred for certain
* IO sizes
*/
bytes = min_t(unsigned int, len, PAGE_SIZE - off);
bytes = min(bytes, data_len);
if (!bio) {
nr_vecs = min_t(int, BIO_MAX_PAGES, nr_pages);
nr_pages -= nr_vecs;
bio = bio_alloc(gfp, nr_vecs);
if (!bio) {
err = -ENOMEM;
goto free_bios;
}
bio->bi_end_io = scsi_bi_endio;
}
if (bio_add_pc_page(q, bio, page, bytes, off) !=
bytes) {
bio_put(bio);
err = -EINVAL;
goto free_bios;
}
if (bio->bi_vcnt >= nr_vecs) {
err = scsi_merge_bio(rq, bio);
if (err) {
bio_endio(bio, 0);
goto free_bios;
}
bio = NULL;
}
page++;
len -= bytes;
data_len -=bytes;
off = 0;
}
}
rq->buffer = rq->data = NULL;
rq->data_len = bufflen;
return 0;
free_bios:
while ((bio = rq->bio) != NULL) {
rq->bio = bio->bi_next;
/*
* call endio instead of bio_put incase it was bounced
*/
bio_endio(bio, 0);
}
return err;
}
/**
* scsi_execute_async - insert request
* @sdev: scsi device
* @cmd: scsi command
* @cmd_len: length of scsi cdb
* @data_direction: DMA_TO_DEVICE, DMA_FROM_DEVICE, or DMA_NONE
* @buffer: data buffer (this can be a kernel buffer or scatterlist)
* @bufflen: len of buffer
* @use_sg: if buffer is a scatterlist this is the number of elements
* @timeout: request timeout in seconds
* @retries: number of times to retry request
* @privdata: data passed to done()
* @done: callback function when done
* @gfp: memory allocation flags
*/
int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
int cmd_len, int data_direction, void *buffer, unsigned bufflen,
int use_sg, int timeout, int retries, void *privdata,
void (*done)(void *, char *, int, int), gfp_t gfp)
{
struct request *req;
struct scsi_io_context *sioc;
int err = 0;
int write = (data_direction == DMA_TO_DEVICE);
sioc = kmem_cache_zalloc(scsi_io_context_cache, gfp);
if (!sioc)
return DRIVER_ERROR << 24;
req = blk_get_request(sdev->request_queue, write, gfp);
if (!req)
goto free_sense;
req->cmd_type = REQ_TYPE_BLOCK_PC;
req->cmd_flags |= REQ_QUIET;
if (use_sg)
err = scsi_req_map_sg(req, buffer, use_sg, bufflen, gfp);
else if (bufflen)
err = blk_rq_map_kern(req->q, req, buffer, bufflen, gfp);
if (err)
goto free_req;
req->cmd_len = cmd_len;
memset(req->cmd, 0, BLK_MAX_CDB); /* ATAPI hates garbage after CDB */
memcpy(req->cmd, cmd, req->cmd_len);
req->sense = sioc->sense;
req->sense_len = 0;
req->timeout = timeout;
req->retries = retries;
req->end_io_data = sioc;
sioc->data = privdata;
sioc->done = done;
blk_execute_rq_nowait(req->q, NULL, req, 1, scsi_end_async);
return 0;
free_req:
blk_put_request(req);
free_sense:
kmem_cache_free(scsi_io_context_cache, sioc);
return DRIVER_ERROR << 24;
}
EXPORT_SYMBOL_GPL(scsi_execute_async);
/*
* Function: scsi_init_cmd_errh()
*
@ -1920,20 +1730,12 @@ int __init scsi_init_queue(void)
{
int i;
scsi_io_context_cache = kmem_cache_create("scsi_io_context",
sizeof(struct scsi_io_context),
0, 0, NULL);
if (!scsi_io_context_cache) {
printk(KERN_ERR "SCSI: can't init scsi io context cache\n");
return -ENOMEM;
}
scsi_sdb_cache = kmem_cache_create("scsi_data_buffer",
sizeof(struct scsi_data_buffer),
0, 0, NULL);
if (!scsi_sdb_cache) {
printk(KERN_ERR "SCSI: can't init scsi sdb cache\n");
goto cleanup_io_context;
return -ENOMEM;
}
for (i = 0; i < SG_MEMPOOL_NR; i++) {
@ -1968,8 +1770,6 @@ int __init scsi_init_queue(void)
kmem_cache_destroy(sgp->slab);
}
kmem_cache_destroy(scsi_sdb_cache);
cleanup_io_context:
kmem_cache_destroy(scsi_io_context_cache);
return -ENOMEM;
}
@ -1978,7 +1778,6 @@ void scsi_exit_queue(void)
{
int i;
kmem_cache_destroy(scsi_io_context_cache);
kmem_cache_destroy(scsi_sdb_cache);
for (i = 0; i < SG_MEMPOOL_NR; i++) {

1
drivers/scsi/scsi_scan.c
View File

@ -797,6 +797,7 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
case TYPE_ENCLOSURE:
case TYPE_COMM:
case TYPE_RAID:
case TYPE_OSD:
sdev->writeable = 1;
break;
case TYPE_ROM:

1
drivers/scsi/scsi_sysfs.c
View File

@ -1043,7 +1043,6 @@ EXPORT_SYMBOL(scsi_register_interface);
/**
* scsi_sysfs_add_host - add scsi host to subsystem
* @shost: scsi host struct to add to subsystem
* @dev: parent struct device pointer
**/
int scsi_sysfs_add_host(struct Scsi_Host *shost)
{

2
drivers/scsi/scsi_transport_fc.c
View File

@ -95,7 +95,7 @@ static struct {
{ FC_PORTTYPE_NPORT, "NPort (fabric via point-to-point)" },
{ FC_PORTTYPE_NLPORT, "NLPort (fabric via loop)" },
{ FC_PORTTYPE_LPORT, "LPort (private loop)" },
{ FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection" },
{ FC_PORTTYPE_PTP, "Point-To-Point (direct nport connection)" },
{ FC_PORTTYPE_NPIV, "NPIV VPORT" },
};
fc_enum_name_search(port_type, fc_port_type, fc_port_type_names)

43
drivers/scsi/scsi_transport_iscsi.c
View File

@ -246,30 +246,13 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev,
memset(ihost, 0, sizeof(*ihost));
atomic_set(&ihost->nr_scans, 0);
mutex_init(&ihost->mutex);
snprintf(ihost->scan_workq_name, sizeof(ihost->scan_workq_name),
"iscsi_scan_%d", shost->host_no);
ihost->scan_workq = create_singlethread_workqueue(
ihost->scan_workq_name);
if (!ihost->scan_workq)
return -ENOMEM;
return 0;
}
static int iscsi_remove_host(struct transport_container *tc, struct device *dev,
struct device *cdev)
{
struct Scsi_Host *shost = dev_to_shost(dev);
struct iscsi_cls_host *ihost = shost->shost_data;
destroy_workqueue(ihost->scan_workq);
return 0;
}
static DECLARE_TRANSPORT_CLASS(iscsi_host_class,
"iscsi_host",
iscsi_setup_host,
iscsi_remove_host,
NULL,
NULL);
static DECLARE_TRANSPORT_CLASS(iscsi_session_class,
@ -568,7 +551,7 @@ static void __iscsi_unblock_session(struct work_struct *work)
* scanning from userspace).
*/
if (shost->hostt->scan_finished) {
if (queue_work(ihost->scan_workq, &session->scan_work))
if (scsi_queue_work(shost, &session->scan_work))
atomic_inc(&ihost->nr_scans);
}
}
@ -636,14 +619,6 @@ static void __iscsi_unbind_session(struct work_struct *work)
iscsi_session_event(session, ISCSI_KEVENT_UNBIND_SESSION);
}
static int iscsi_unbind_session(struct iscsi_cls_session *session)
{
struct Scsi_Host *shost = iscsi_session_to_shost(session);
struct iscsi_cls_host *ihost = shost->shost_data;
return queue_work(ihost->scan_workq, &session->unbind_work);
}
struct iscsi_cls_session *
iscsi_alloc_session(struct Scsi_Host *shost, struct iscsi_transport *transport,
int dd_size)
@ -796,7 +771,6 @@ static int iscsi_iter_destroy_conn_fn(struct device *dev, void *data)
void iscsi_remove_session(struct iscsi_cls_session *session)
{
struct Scsi_Host *shost = iscsi_session_to_shost(session);
struct iscsi_cls_host *ihost = shost->shost_data;
unsigned long flags;
int err;
@ -821,7 +795,7 @@ void iscsi_remove_session(struct iscsi_cls_session *session)
scsi_target_unblock(&session->dev);
/* flush running scans then delete devices */
flush_workqueue(ihost->scan_workq);
scsi_flush_work(shost);
__iscsi_unbind_session(&session->unbind_work);
/* hw iscsi may not have removed all connections from session */
@ -1215,14 +1189,15 @@ iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_endpoint *ep,
{
struct iscsi_transport *transport = priv->iscsi_transport;
struct iscsi_cls_session *session;
uint32_t host_no;
struct Scsi_Host *shost;
session = transport->create_session(ep, cmds_max, queue_depth,
initial_cmdsn, &host_no);
initial_cmdsn);
if (!session)
return -ENOMEM;
ev->r.c_session_ret.host_no = host_no;
shost = iscsi_session_to_shost(session);
ev->r.c_session_ret.host_no = shost->host_no;
ev->r.c_session_ret.sid = session->sid;
return 0;
}
@ -1439,7 +1414,8 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
case ISCSI_UEVENT_UNBIND_SESSION:
session = iscsi_session_lookup(ev->u.d_session.sid);
if (session)
iscsi_unbind_session(session);
scsi_queue_work(iscsi_session_to_shost(session),
&session->unbind_work);
else
err = -EINVAL;
break;
@ -1801,7 +1777,6 @@ iscsi_register_transport(struct iscsi_transport *tt)
priv->daemon_pid = -1;
priv->iscsi_transport = tt;
priv->t.user_scan = iscsi_user_scan;
if (!(tt->caps & CAP_DATA_PATH_OFFLOAD))
priv->t.create_work_queue = 1;
priv->dev.class = &iscsi_transport_class;

307
drivers/scsi/sd.c
View File

@ -1273,42 +1273,126 @@ void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer)
sdkp->capacity = 0;
}
/*
* read disk capacity
static void read_capacity_error(struct scsi_disk *sdkp, struct scsi_device *sdp,
struct scsi_sense_hdr *sshdr, int sense_valid,
int the_result)
{
sd_print_result(sdkp, the_result);
if (driver_byte(the_result) & DRIVER_SENSE)
sd_print_sense_hdr(sdkp, sshdr);
else
sd_printk(KERN_NOTICE, sdkp, "Sense not available.\n");
/*
* Set dirty bit for removable devices if not ready -
* sometimes drives will not report this properly.
*/
static void
sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
if (sdp->removable &&
sense_valid && sshdr->sense_key == NOT_READY)
sdp->changed = 1;
/*
* We used to set media_present to 0 here to indicate no media
* in the drive, but some drives fail read capacity even with
* media present, so we can't do that.
*/
sdkp->capacity = 0; /* unknown mapped to zero - as usual */
}
#define RC16_LEN 32
#if RC16_LEN > SD_BUF_SIZE
#error RC16_LEN must not be more than SD_BUF_SIZE
#endif
static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
unsigned char *buffer)
{
unsigned char cmd[16];
int the_result, retries;
int sector_size = 0;
/* Force READ CAPACITY(16) when PROTECT=1 */
int longrc = scsi_device_protection(sdkp->device) ? 1 : 0;
struct scsi_sense_hdr sshdr;
int sense_valid = 0;
struct scsi_device *sdp = sdkp->device;
int the_result;
int retries = 3;
unsigned long long lba;
unsigned sector_size;
repeat:
retries = 3;
do {
if (longrc) {
memset((void *) cmd, 0, 16);
memset(cmd, 0, 16);
cmd[0] = SERVICE_ACTION_IN;
cmd[1] = SAI_READ_CAPACITY_16;
cmd[13] = 13;
memset((void *) buffer, 0, 13);
} else {
cmd[0] = READ_CAPACITY;
memset((void *) &cmd[1], 0, 9);
memset((void *) buffer, 0, 8);
}
cmd[13] = RC16_LEN;
memset(buffer, 0, RC16_LEN);
the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
buffer, longrc ? 13 : 8, &sshdr,
buffer, RC16_LEN, &sshdr,
SD_TIMEOUT, SD_MAX_RETRIES, NULL);
if (media_not_present(sdkp, &sshdr))
return;
return -ENODEV;
if (the_result) {
sense_valid = scsi_sense_valid(&sshdr);
if (sense_valid &&
sshdr.sense_key == ILLEGAL_REQUEST &&
(sshdr.asc == 0x20 || sshdr.asc == 0x24) &&
sshdr.ascq == 0x00)
/* Invalid Command Operation Code or
* Invalid Field in CDB, just retry
* silently with RC10 */
return -EINVAL;
}
retries--;
} while (the_result && retries);
if (the_result) {
sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY(16) failed\n");
read_capacity_error(sdkp, sdp, &sshdr, sense_valid, the_result);
return -EINVAL;
}
sector_size = (buffer[8] << 24) | (buffer[9] << 16) |
(buffer[10] << 8) | buffer[11];
lba = (((u64)buffer[0] << 56) | ((u64)buffer[1] << 48) |
((u64)buffer[2] << 40) | ((u64)buffer[3] << 32) |
((u64)buffer[4] << 24) | ((u64)buffer[5] << 16) |
((u64)buffer[6] << 8) | (u64)buffer[7]);
sd_read_protection_type(sdkp, buffer);
if ((sizeof(sdkp->capacity) == 4) && (lba >= 0xffffffffULL)) {
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
"kernel compiled with support for large block "
"devices.\n");
sdkp->capacity = 0;
return -EOVERFLOW;
}
sdkp->capacity = lba + 1;
return sector_size;
}
static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
unsigned char *buffer)
{
unsigned char cmd[16];
struct scsi_sense_hdr sshdr;
int sense_valid = 0;
int the_result;
int retries = 3;
sector_t lba;
unsigned sector_size;
do {
cmd[0] = READ_CAPACITY;
memset(&cmd[1], 0, 9);
memset(buffer, 0, 8);
the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE,
buffer, 8, &sshdr,
SD_TIMEOUT, SD_MAX_RETRIES, NULL);
if (media_not_present(sdkp, &sshdr))
return -ENODEV;
if (the_result)
sense_valid = scsi_sense_valid(&sshdr);
@ -1316,84 +1400,95 @@ sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
} while (the_result && retries);
if (the_result && !longrc) {
if (the_result) {
sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY failed\n");
sd_print_result(sdkp, the_result);
if (driver_byte(the_result) & DRIVER_SENSE)
sd_print_sense_hdr(sdkp, &sshdr);
else
sd_printk(KERN_NOTICE, sdkp, "Sense not available.\n");
/* Set dirty bit for removable devices if not ready -
* sometimes drives will not report this properly. */
if (sdp->removable &&
sense_valid && sshdr.sense_key == NOT_READY)
sdp->changed = 1;
/* Either no media are present but the drive didn't tell us,
or they are present but the read capacity command fails */
/* sdkp->media_present = 0; -- not always correct */
sdkp->capacity = 0; /* unknown mapped to zero - as usual */
return;
} else if (the_result && longrc) {
/* READ CAPACITY(16) has been failed */
sd_printk(KERN_NOTICE, sdkp, "READ CAPACITY(16) failed\n");
sd_print_result(sdkp, the_result);
sd_printk(KERN_NOTICE, sdkp, "Use 0xffffffff as device size\n");
sdkp->capacity = 1 + (sector_t) 0xffffffff;
goto got_data;
read_capacity_error(sdkp, sdp, &sshdr, sense_valid, the_result);
return -EINVAL;
}
if (!longrc) {
sector_size = (buffer[4] << 24) |
(buffer[5] << 16) | (buffer[6] << 8) | buffer[7];
if (buffer[0] == 0xff && buffer[1] == 0xff &&
buffer[2] == 0xff && buffer[3] == 0xff) {
if(sizeof(sdkp->capacity) > 4) {
sector_size = (buffer[4] << 24) | (buffer[5] << 16) |
(buffer[6] << 8) | buffer[7];
lba = (buffer[0] << 24) | (buffer[1] << 16) |
(buffer[2] << 8) | buffer[3];
if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) {
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
"kernel compiled with support for large block "
"devices.\n");
sdkp->capacity = 0;
return -EOVERFLOW;
}
sdkp->capacity = lba + 1;
return sector_size;
}
static int sd_try_rc16_first(struct scsi_device *sdp)
{
if (sdp->scsi_level > SCSI_SPC_2)
return 1;
if (scsi_device_protection(sdp))
return 1;
return 0;
}
/*
* read disk capacity
*/
static void
sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
{
int sector_size;
struct scsi_device *sdp = sdkp->device;
sector_t old_capacity = sdkp->capacity;
if (sd_try_rc16_first(sdp)) {
sector_size = read_capacity_16(sdkp, sdp, buffer);
if (sector_size == -EOVERFLOW)
goto got_data;
if (sector_size == -ENODEV)
return;
if (sector_size < 0)
sector_size = read_capacity_10(sdkp, sdp, buffer);
if (sector_size < 0)
return;
} else {
sector_size = read_capacity_10(sdkp, sdp, buffer);
if (sector_size == -EOVERFLOW)
goto got_data;
if (sector_size < 0)
return;
if ((sizeof(sdkp->capacity) > 4) &&
(sdkp->capacity > 0xffffffffULL)) {
int old_sector_size = sector_size;
sd_printk(KERN_NOTICE, sdkp, "Very big device. "
"Trying to use READ CAPACITY(16).\n");
longrc = 1;
goto repeat;
}
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use "
"a kernel compiled with support for large "
"block devices.\n");
sdkp->capacity = 0;
sector_size = read_capacity_16(sdkp, sdp, buffer);
if (sector_size < 0) {
sd_printk(KERN_NOTICE, sdkp,
"Using 0xffffffff as device size\n");
sdkp->capacity = 1 + (sector_t) 0xffffffff;
sector_size = old_sector_size;
goto got_data;
}
sdkp->capacity = 1 + (((sector_t)buffer[0] << 24) |
(buffer[1] << 16) |
(buffer[2] << 8) |
buffer[3]);
} else {
sdkp->capacity = 1 + (((u64)buffer[0] << 56) |
((u64)buffer[1] << 48) |
((u64)buffer[2] << 40) |
((u64)buffer[3] << 32) |
((sector_t)buffer[4] << 24) |
((sector_t)buffer[5] << 16) |
((sector_t)buffer[6] << 8) |
(sector_t)buffer[7]);
sector_size = (buffer[8] << 24) |
(buffer[9] << 16) | (buffer[10] << 8) | buffer[11];
sd_read_protection_type(sdkp, buffer);
}
}
/* Some devices return the total number of sectors, not the
* highest sector number. Make the necessary adjustment. */
if (sdp->fix_capacity) {
--sdkp->capacity;
/* Some devices have version which report the correct sizes
* and others which do not. We guess size according to a heuristic
* and err on the side of lowering the capacity. */
} else {
if (sdp->guess_capacity)
if (sdkp->capacity & 0x01) /* odd sizes are odd */
/* Some devices are known to return the total number of blocks,
* not the highest block number. Some devices have versions
* which do this and others which do not. Some devices we might
* suspect of doing this but we don't know for certain.
*
* If we know the reported capacity is wrong, decrement it. If
* we can only guess, then assume the number of blocks is even
* (usually true but not always) and err on the side of lowering
* the capacity.
*/
if (sdp->fix_capacity ||
(sdp->guess_capacity && (sdkp->capacity & 0x01))) {
sd_printk(KERN_INFO, sdkp, "Adjusting the sector count "
"from its reported value: %llu\n",
(unsigned long long) sdkp->capacity);
--sdkp->capacity;
}
@ -1437,6 +1532,7 @@ sd_read_capacity(struct scsi_disk *sdkp, unsigned char *buffer)
string_get_size(sz, STRING_UNITS_10, cap_str_10,
sizeof(cap_str_10));
if (sdkp->first_scan || old_capacity != sdkp->capacity)
sd_printk(KERN_NOTICE, sdkp,
"%llu %d-byte hardware sectors: (%s/%s)\n",
(unsigned long long)sdkp->capacity,
@ -1477,6 +1573,7 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
int res;
struct scsi_device *sdp = sdkp->device;
struct scsi_mode_data data;
int old_wp = sdkp->write_prot;
set_disk_ro(sdkp->disk, 0);
if (sdp->skip_ms_page_3f) {
@ -1517,12 +1614,14 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer)
} else {
sdkp->write_prot = ((data.device_specific & 0x80) != 0);
set_disk_ro(sdkp->disk, sdkp->write_prot);
if (sdkp->first_scan || old_wp != sdkp->write_prot) {
sd_printk(KERN_NOTICE, sdkp, "Write Protect is %s\n",
sdkp->write_prot ? "on" : "off");
sd_printk(KERN_DEBUG, sdkp,
"Mode Sense: %02x %02x %02x %02x\n",
buffer[0], buffer[1], buffer[2], buffer[3]);
}
}
}
/*
@ -1539,6 +1638,9 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
int modepage;
struct scsi_mode_data data;
struct scsi_sense_hdr sshdr;
int old_wce = sdkp->WCE;
int old_rcd = sdkp->RCD;
int old_dpofua = sdkp->DPOFUA;
if (sdp->skip_ms_page_8)
goto defaults;
@ -1610,6 +1712,8 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
sdkp->DPOFUA = 0;
}
if (sdkp->first_scan || old_wce != sdkp->WCE ||
old_rcd != sdkp->RCD || old_dpofua != sdkp->DPOFUA)
sd_printk(KERN_NOTICE, sdkp,
"Write cache: %s, read cache: %s, %s\n",
sdkp->WCE ? "enabled" : "disabled",
@ -1711,15 +1815,6 @@ static int sd_revalidate_disk(struct gendisk *disk)
goto out;
}
/* defaults, until the device tells us otherwise */
sdp->sector_size = 512;
sdkp->capacity = 0;
sdkp->media_present = 1;
sdkp->write_prot = 0;
sdkp->WCE = 0;
sdkp->RCD = 0;
sdkp->ATO = 0;
sd_spinup_disk(sdkp);
/*
@ -1733,6 +1828,8 @@ static int sd_revalidate_disk(struct gendisk *disk)
sd_read_app_tag_own(sdkp, buffer);
}
sdkp->first_scan = 0;
/*
* We now have all cache related info, determine how we deal
* with ordered requests. Note that as the current SCSI
@ -1843,6 +1940,16 @@ static void sd_probe_async(void *data, async_cookie_t cookie)
gd->private_data = &sdkp->driver;
gd->queue = sdkp->device->request_queue;
/* defaults, until the device tells us otherwise */
sdp->sector_size = 512;
sdkp->capacity = 0;
sdkp->media_present = 1;
sdkp->write_prot = 0;
sdkp->WCE = 0;
sdkp->RCD = 0;
sdkp->ATO = 0;
sdkp->first_scan = 1;
sd_revalidate_disk(gd);
blk_queue_prep_rq(sdp->request_queue, sd_prep_fn);

1
drivers/scsi/sd.h
View File

@ -53,6 +53,7 @@ struct scsi_disk {
unsigned WCE : 1; /* state of disk WCE bit */
unsigned RCD : 1; /* state of disk RCD bit, unused */
unsigned DPOFUA : 1; /* state of disk DPOFUA bit */
unsigned first_scan : 1;
};
#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)

33
drivers/scsi/ses.c
View File

@ -345,44 +345,21 @@ static int ses_enclosure_find_by_addr(struct enclosure_device *edev,
return 0;
}
#define VPD_INQUIRY_SIZE 36
static void ses_match_to_enclosure(struct enclosure_device *edev,
struct scsi_device *sdev)
{
unsigned char *buf = kmalloc(VPD_INQUIRY_SIZE, GFP_KERNEL);
unsigned char *buf;
unsigned char *desc;
u16 vpd_len;
unsigned int vpd_len;
struct efd efd = {
.addr = 0,
};
unsigned char cmd[] = {
INQUIRY,
1,
0x83,
VPD_INQUIRY_SIZE >> 8,
VPD_INQUIRY_SIZE & 0xff,
0
};
buf = scsi_get_vpd_page(sdev, 0x83);
if (!buf)
return;
if (scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf,
VPD_INQUIRY_SIZE, NULL, SES_TIMEOUT, SES_RETRIES,
NULL))
goto free;
vpd_len = (buf[2] << 8) + buf[3];
kfree(buf);
buf = kmalloc(vpd_len, GFP_KERNEL);
if (!buf)
return;
cmd[3] = vpd_len >> 8;
cmd[4] = vpd_len & 0xff;
if (scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf,
vpd_len, NULL, SES_TIMEOUT, SES_RETRIES, NULL))
goto free;
vpd_len = ((buf[2] << 8) | buf[3]) + 4;
desc = buf + 4;
while (desc < buf + vpd_len) {
@ -393,7 +370,7 @@ static void ses_match_to_enclosure(struct enclosure_device *edev,
u8 type = desc[1] & 0x0f;
u8 len = desc[3];
if (piv && code_set == 1 && assoc == 1 && code_set == 1
if (piv && code_set == 1 && assoc == 1
&& proto == SCSI_PROTOCOL_SAS && type == 3 && len == 8)
efd.addr = (u64)desc[4] << 56 |
(u64)desc[5] << 48 |

453
drivers/scsi/sg.c
View File

@ -98,7 +98,6 @@ static int scatter_elem_sz = SG_SCATTER_SZ;
static int scatter_elem_sz_prev = SG_SCATTER_SZ;
#define SG_SECTOR_SZ 512
#define SG_SECTOR_MSK (SG_SECTOR_SZ - 1)
static int sg_add(struct device *, struct class_interface *);
static void sg_remove(struct device *, struct class_interface *);
@ -137,10 +136,11 @@ typedef struct sg_request { /* SG_MAX_QUEUE requests outstanding per file */
volatile char done; /* 0->before bh, 1->before read, 2->read */
struct request *rq;
struct bio *bio;
struct execute_work ew;
} Sg_request;
typedef struct sg_fd { /* holds the state of a file descriptor */
struct sg_fd *nextfp; /* NULL when last opened fd on this device */
struct list_head sfd_siblings;
struct sg_device *parentdp; /* owning device */
wait_queue_head_t read_wait; /* queue read until command done */
rwlock_t rq_list_lock; /* protect access to list in req_arr */
@ -158,6 +158,8 @@ typedef struct sg_fd { /* holds the state of a file descriptor */
char next_cmd_len; /* 0 -> automatic (def), >0 -> use on next write() */
char keep_orphan; /* 0 -> drop orphan (def), 1 -> keep for read() */
char mmap_called; /* 0 -> mmap() never called on this fd */
struct kref f_ref;
struct execute_work ew;
} Sg_fd;
typedef struct sg_device { /* holds the state of each scsi generic device */
@ -165,27 +167,25 @@ typedef struct sg_device { /* holds the state of each scsi generic device */
wait_queue_head_t o_excl_wait; /* queue open() when O_EXCL in use */
int sg_tablesize; /* adapter's max scatter-gather table size */
u32 index; /* device index number */
Sg_fd *headfp; /* first open fd belonging to this device */
struct list_head sfds;
volatile char detached; /* 0->attached, 1->detached pending removal */
volatile char exclude; /* opened for exclusive access */
char sgdebug; /* 0->off, 1->sense, 9->dump dev, 10-> all devs */
struct gendisk *disk;
struct cdev * cdev; /* char_dev [sysfs: /sys/cdev/major/sg<n>] */
struct kref d_ref;
} Sg_device;
static int sg_fasync(int fd, struct file *filp, int mode);
/* tasklet or soft irq callback */
static void sg_rq_end_io(struct request *rq, int uptodate);
static int sg_start_req(Sg_request *srp, unsigned char *cmd);
static void sg_finish_rem_req(Sg_request * srp);
static int sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size);
static int sg_build_sgat(Sg_scatter_hold * schp, const Sg_fd * sfp,
int tablesize);
static ssize_t sg_new_read(Sg_fd * sfp, char __user *buf, size_t count,
Sg_request * srp);
static ssize_t sg_new_write(Sg_fd *sfp, struct file *file,
const char __user *buf, size_t count, int blocking,
int read_only, Sg_request **o_srp);
int read_only, int sg_io_owned, Sg_request **o_srp);
static int sg_common_write(Sg_fd * sfp, Sg_request * srp,
unsigned char *cmnd, int timeout, int blocking);
static int sg_read_oxfer(Sg_request * srp, char __user *outp, int num_read_xfer);
@ -194,16 +194,13 @@ static void sg_build_reserve(Sg_fd * sfp, int req_size);
static void sg_link_reserve(Sg_fd * sfp, Sg_request * srp, int size);
static void sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp);
static Sg_fd *sg_add_sfp(Sg_device * sdp, int dev);
static int sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp);
static void __sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp);
static void sg_remove_sfp(struct kref *);
static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id);
static Sg_request *sg_add_request(Sg_fd * sfp);
static int sg_remove_request(Sg_fd * sfp, Sg_request * srp);
static int sg_res_in_use(Sg_fd * sfp);
static Sg_device *sg_get_dev(int dev);
#ifdef CONFIG_SCSI_PROC_FS
static int sg_last_dev(void);
#endif
static void sg_put_dev(Sg_device *sdp);
#define SZ_SG_HEADER sizeof(struct sg_header)
#define SZ_SG_IO_HDR sizeof(sg_io_hdr_t)
@ -237,22 +234,17 @@ sg_open(struct inode *inode, struct file *filp)
nonseekable_open(inode, filp);
SCSI_LOG_TIMEOUT(3, printk("sg_open: dev=%d, flags=0x%x\n", dev, flags));
sdp = sg_get_dev(dev);
if ((!sdp) || (!sdp->device)) {
unlock_kernel();
return -ENXIO;
}
if (sdp->detached) {
unlock_kernel();
return -ENODEV;
if (IS_ERR(sdp)) {
retval = PTR_ERR(sdp);
sdp = NULL;
goto sg_put;
}
/* This driver's module count bumped by fops_get in <linux/fs.h> */
/* Prevent the device driver from vanishing while we sleep */
retval = scsi_device_get(sdp->device);
if (retval) {
unlock_kernel();
return retval;
}
if (retval)
goto sg_put;
if (!((flags & O_NONBLOCK) ||
scsi_block_when_processing_errors(sdp->device))) {
@ -266,13 +258,13 @@ sg_open(struct inode *inode, struct file *filp)
retval = -EPERM; /* Can't lock it with read only access */
goto error_out;
}
if (sdp->headfp && (flags & O_NONBLOCK)) {
if (!list_empty(&sdp->sfds) && (flags & O_NONBLOCK)) {
retval = -EBUSY;
goto error_out;
}
res = 0;
__wait_event_interruptible(sdp->o_excl_wait,
((sdp->headfp || sdp->exclude) ? 0 : (sdp->exclude = 1)), res);
((!list_empty(&sdp->sfds) || sdp->exclude) ? 0 : (sdp->exclude = 1)), res);
if (res) {
retval = res; /* -ERESTARTSYS because signal hit process */
goto error_out;
@ -294,7 +286,7 @@ sg_open(struct inode *inode, struct file *filp)
retval = -ENODEV;
goto error_out;
}
if (!sdp->headfp) { /* no existing opens on this device */
if (list_empty(&sdp->sfds)) { /* no existing opens on this device */
sdp->sgdebug = 0;
q = sdp->device->request_queue;
sdp->sg_tablesize = min(q->max_hw_segments,
@ -303,16 +295,20 @@ sg_open(struct inode *inode, struct file *filp)
if ((sfp = sg_add_sfp(sdp, dev)))
filp->private_data = sfp;
else {
if (flags & O_EXCL)
if (flags & O_EXCL) {
sdp->exclude = 0; /* undo if error */
wake_up_interruptible(&sdp->o_excl_wait);
}
retval = -ENOMEM;
goto error_out;
}
unlock_kernel();
return 0;
error_out:
retval = 0;
error_out:
if (retval)
scsi_device_put(sdp->device);
sg_put:
if (sdp)
sg_put_dev(sdp);
unlock_kernel();
return retval;
}
@ -327,13 +323,13 @@ sg_release(struct inode *inode, struct file *filp)
if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
return -ENXIO;
SCSI_LOG_TIMEOUT(3, printk("sg_release: %s\n", sdp->disk->disk_name));
if (0 == sg_remove_sfp(sdp, sfp)) { /* Returns 1 when sdp gone */
if (!sdp->detached) {
scsi_device_put(sdp->device);
}
sfp->closed = 1;
sdp->exclude = 0;
wake_up_interruptible(&sdp->o_excl_wait);
}
kref_put(&sfp->f_ref, sg_remove_sfp);
return 0;
}
@ -557,7 +553,8 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
return -EFAULT;
blocking = !(filp->f_flags & O_NONBLOCK);
if (old_hdr.reply_len < 0)
return sg_new_write(sfp, filp, buf, count, blocking, 0, NULL);
return sg_new_write(sfp, filp, buf, count,
blocking, 0, 0, NULL);
if (count < (SZ_SG_HEADER + 6))
return -EIO; /* The minimum scsi command length is 6 bytes. */
@ -638,7 +635,7 @@ sg_write(struct file *filp, const char __user *buf, size_t count, loff_t * ppos)
static ssize_t
sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf,
size_t count, int blocking, int read_only,
size_t count, int blocking, int read_only, int sg_io_owned,
Sg_request **o_srp)
{
int k;
@ -658,6 +655,7 @@ sg_new_write(Sg_fd *sfp, struct file *file, const char __user *buf,
SCSI_LOG_TIMEOUT(1, printk("sg_new_write: queue full\n"));
return -EDOM;
}
srp->sg_io_owned = sg_io_owned;
hp = &srp->header;
if (__copy_from_user(hp, buf, SZ_SG_IO_HDR)) {
sg_remove_request(sfp, srp);
@ -755,23 +753,12 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
hp->duration = jiffies_to_msecs(jiffies);
srp->rq->timeout = timeout;
kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */
blk_execute_rq_nowait(sdp->device->request_queue, sdp->disk,
srp->rq, 1, sg_rq_end_io);
return 0;
}
static int
sg_srp_done(Sg_request *srp, Sg_fd *sfp)
{
unsigned long iflags;
int done;
read_lock_irqsave(&sfp->rq_list_lock, iflags);
done = srp->done;
read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
return done;
}
static int
sg_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd_in, unsigned long arg)
@ -804,27 +791,26 @@ sg_ioctl(struct inode *inode, struct file *filp,
return -EFAULT;
result =
sg_new_write(sfp, filp, p, SZ_SG_IO_HDR,
blocking, read_only, &srp);
blocking, read_only, 1, &srp);
if (result < 0)
return result;
srp->sg_io_owned = 1;
while (1) {
result = 0; /* following macro to beat race condition */
__wait_event_interruptible(sfp->read_wait,
(sdp->detached || sfp->closed || sg_srp_done(srp, sfp)),
(srp->done || sdp->detached),
result);
if (sdp->detached)
return -ENODEV;
if (sfp->closed)
return 0; /* request packet dropped already */
if (0 == result)
write_lock_irq(&sfp->rq_list_lock);
if (srp->done) {
srp->done = 2;
write_unlock_irq(&sfp->rq_list_lock);
break;
}
srp->orphan = 1;
write_unlock_irq(&sfp->rq_list_lock);
return result; /* -ERESTARTSYS because signal hit process */
}
write_lock_irqsave(&sfp->rq_list_lock, iflags);
srp->done = 2;
write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
result = sg_new_read(sfp, p, SZ_SG_IO_HDR, srp);
return (result < 0) ? result : 0;
}
@ -1238,6 +1224,15 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
return 0;
}
static void sg_rq_end_io_usercontext(struct work_struct *work)
{
struct sg_request *srp = container_of(work, struct sg_request, ew.work);
struct sg_fd *sfp = srp->parentfp;
sg_finish_rem_req(srp);
kref_put(&sfp->f_ref, sg_remove_sfp);
}
/*
* This function is a "bottom half" handler that is called by the mid
* level when a command is completed (or has failed).
@ -1245,24 +1240,23 @@ sg_mmap(struct file *filp, struct vm_area_struct *vma)
static void sg_rq_end_io(struct request *rq, int uptodate)
{
struct sg_request *srp = rq->end_io_data;
Sg_device *sdp = NULL;
Sg_device *sdp;
Sg_fd *sfp;
unsigned long iflags;
unsigned int ms;
char *sense;
int result, resid;
int result, resid, done = 1;
if (NULL == srp) {
printk(KERN_ERR "sg_cmd_done: NULL request\n");
if (WARN_ON(srp->done != 0))
return;
}
sfp = srp->parentfp;
if (sfp)
sdp = sfp->parentdp;
if ((NULL == sdp) || sdp->detached) {
printk(KERN_INFO "sg_cmd_done: device detached\n");
if (WARN_ON(sfp == NULL))
return;
}
sdp = sfp->parentdp;
if (unlikely(sdp->detached))
printk(KERN_INFO "sg_rq_end_io: device detached\n");
sense = rq->sense;
result = rq->errors;
@ -1301,33 +1295,25 @@ static void sg_rq_end_io(struct request *rq, int uptodate)
}
/* Rely on write phase to clean out srp status values, so no "else" */
if (sfp->closed) { /* whoops this fd already released, cleanup */
SCSI_LOG_TIMEOUT(1, printk("sg_cmd_done: already closed, freeing ...\n"));
sg_finish_rem_req(srp);
srp = NULL;
if (NULL == sfp->headrp) {
SCSI_LOG_TIMEOUT(1, printk("sg_cmd_done: already closed, final cleanup\n"));
if (0 == sg_remove_sfp(sdp, sfp)) { /* device still present */
scsi_device_put(sdp->device);
}
sfp = NULL;
}
} else if (srp && srp->orphan) {
write_lock_irqsave(&sfp->rq_list_lock, iflags);
if (unlikely(srp->orphan)) {
if (sfp->keep_orphan)
srp->sg_io_owned = 0;
else {
sg_finish_rem_req(srp);
srp = NULL;
else
done = 0;
}
}
if (sfp && srp) {
/* Now wake up any sg_read() that is waiting for this packet. */
kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN);
write_lock_irqsave(&sfp->rq_list_lock, iflags);
srp->done = 1;
wake_up_interruptible(&sfp->read_wait);
srp->done = done;
write_unlock_irqrestore(&sfp->rq_list_lock, iflags);
}
if (likely(done)) {
/* Now wake up any sg_read() that is waiting for this
* packet.
*/
wake_up_interruptible(&sfp->read_wait);
kill_fasync(&sfp->async_qp, SIGPOLL, POLL_IN);
kref_put(&sfp->f_ref, sg_remove_sfp);
} else
execute_in_process_context(sg_rq_end_io_usercontext, &srp->ew);
}
static struct file_operations sg_fops = {
@ -1362,17 +1348,18 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
printk(KERN_WARNING "kmalloc Sg_device failure\n");
return ERR_PTR(-ENOMEM);
}
error = -ENOMEM;
if (!idr_pre_get(&sg_index_idr, GFP_KERNEL)) {
printk(KERN_WARNING "idr expansion Sg_device failure\n");
error = -ENOMEM;
goto out;
}
write_lock_irqsave(&sg_index_lock, iflags);
error = idr_get_new(&sg_index_idr, sdp, &k);
write_unlock_irqrestore(&sg_index_lock, iflags);
error = idr_get_new(&sg_index_idr, sdp, &k);
if (error) {
write_unlock_irqrestore(&sg_index_lock, iflags);
printk(KERN_WARNING "idr allocation Sg_device failure: %d\n",
error);
goto out;
@ -1386,9 +1373,13 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
disk->first_minor = k;
sdp->disk = disk;
sdp->device = scsidp;
INIT_LIST_HEAD(&sdp->sfds);
init_waitqueue_head(&sdp->o_excl_wait);
sdp->sg_tablesize = min(q->max_hw_segments, q->max_phys_segments);
sdp->index = k;
kref_init(&sdp->d_ref);
write_unlock_irqrestore(&sg_index_lock, iflags);
error = 0;
out:
@ -1399,6 +1390,8 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp)
return sdp;
overflow:
idr_remove(&sg_index_idr, k);
write_unlock_irqrestore(&sg_index_lock, iflags);
sdev_printk(KERN_WARNING, scsidp,
"Unable to attach sg device type=%d, minor "
"number exceeds %d\n", scsidp->type, SG_MAX_DEVS - 1);
@ -1486,49 +1479,46 @@ sg_add(struct device *cl_dev, struct class_interface *cl_intf)
return error;
}
static void
sg_remove(struct device *cl_dev, struct class_interface *cl_intf)
static void sg_device_destroy(struct kref *kref)
{
struct sg_device *sdp = container_of(kref, struct sg_device, d_ref);
unsigned long flags;
/* CAUTION! Note that the device can still be found via idr_find()
* even though the refcount is 0. Therefore, do idr_remove() BEFORE
* any other cleanup.
*/
write_lock_irqsave(&sg_index_lock, flags);
idr_remove(&sg_index_idr, sdp->index);
write_unlock_irqrestore(&sg_index_lock, flags);
SCSI_LOG_TIMEOUT(3,
printk("sg_device_destroy: %s\n",
sdp->disk->disk_name));
put_disk(sdp->disk);
kfree(sdp);
}
static void sg_remove(struct device *cl_dev, struct class_interface *cl_intf)
{
struct scsi_device *scsidp = to_scsi_device(cl_dev->parent);
Sg_device *sdp = dev_get_drvdata(cl_dev);
unsigned long iflags;
Sg_fd *sfp;
Sg_fd *tsfp;
Sg_request *srp;
Sg_request *tsrp;
int delay;
if (!sdp)
if (!sdp || sdp->detached)
return;
delay = 0;
SCSI_LOG_TIMEOUT(3, printk("sg_remove: %s\n", sdp->disk->disk_name));
/* Need a write lock to set sdp->detached. */
write_lock_irqsave(&sg_index_lock, iflags);
if (sdp->headfp) {
sdp->detached = 1;
for (sfp = sdp->headfp; sfp; sfp = tsfp) {
tsfp = sfp->nextfp;
for (srp = sfp->headrp; srp; srp = tsrp) {
tsrp = srp->nextrp;
if (sfp->closed || (0 == sg_srp_done(srp, sfp)))
sg_finish_rem_req(srp);
}
if (sfp->closed) {
scsi_device_put(sdp->device);
__sg_remove_sfp(sdp, sfp);
} else {
delay = 1;
list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) {
wake_up_interruptible(&sfp->read_wait);
kill_fasync(&sfp->async_qp, SIGPOLL,
POLL_HUP);
}
}
SCSI_LOG_TIMEOUT(3, printk("sg_remove: dev=%d, dirty\n", sdp->index));
if (NULL == sdp->headfp) {
idr_remove(&sg_index_idr, sdp->index);
}
} else { /* nothing active, simple case */
SCSI_LOG_TIMEOUT(3, printk("sg_remove: dev=%d\n", sdp->index));
idr_remove(&sg_index_idr, sdp->index);
kill_fasync(&sfp->async_qp, SIGPOLL, POLL_HUP);
}
write_unlock_irqrestore(&sg_index_lock, iflags);
@ -1536,13 +1526,8 @@ sg_remove(struct device *cl_dev, struct class_interface *cl_intf)
device_destroy(sg_sysfs_class, MKDEV(SCSI_GENERIC_MAJOR, sdp->index));
cdev_del(sdp->cdev);
sdp->cdev = NULL;
put_disk(sdp->disk);
sdp->disk = NULL;
if (NULL == sdp->headfp)
kfree(sdp);
if (delay)
msleep(10); /* dirty detach so delay device destruction */
sg_put_dev(sdp);
}
module_param_named(scatter_elem_sz, scatter_elem_sz, int, S_IRUGO | S_IWUSR);
@ -1736,8 +1721,8 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
return -EFAULT;
if (0 == blk_size)
++blk_size; /* don't know why */
/* round request up to next highest SG_SECTOR_SZ byte boundary */
blk_size = (blk_size + SG_SECTOR_MSK) & (~SG_SECTOR_MSK);
/* round request up to next highest SG_SECTOR_SZ byte boundary */
blk_size = ALIGN(blk_size, SG_SECTOR_SZ);
SCSI_LOG_TIMEOUT(4, printk("sg_build_indirect: buff_size=%d, blk_size=%d\n",
buff_size, blk_size));
@ -1939,22 +1924,6 @@ sg_get_rq_mark(Sg_fd * sfp, int pack_id)
return resp;
}
#ifdef CONFIG_SCSI_PROC_FS
static Sg_request *
sg_get_nth_request(Sg_fd * sfp, int nth)
{
Sg_request *resp;
unsigned long iflags;
int k;
read_lock_irqsave(&sfp->rq_list_lock, iflags);
for (k = 0, resp = sfp->headrp; resp && (k < nth);
++k, resp = resp->nextrp) ;
read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
return resp;
}
#endif
/* always adds to end of list */
static Sg_request *
sg_add_request(Sg_fd * sfp)
@ -2030,22 +1999,6 @@ sg_remove_request(Sg_fd * sfp, Sg_request * srp)
return res;
}
#ifdef CONFIG_SCSI_PROC_FS
static Sg_fd *
sg_get_nth_sfp(Sg_device * sdp, int nth)
{
Sg_fd *resp;
unsigned long iflags;
int k;
read_lock_irqsave(&sg_index_lock, iflags);
for (k = 0, resp = sdp->headfp; resp && (k < nth);
++k, resp = resp->nextfp) ;
read_unlock_irqrestore(&sg_index_lock, iflags);
return resp;
}
#endif
static Sg_fd *
sg_add_sfp(Sg_device * sdp, int dev)
{
@ -2060,6 +2013,7 @@ sg_add_sfp(Sg_device * sdp, int dev)
init_waitqueue_head(&sfp->read_wait);
rwlock_init(&sfp->rq_list_lock);
kref_init(&sfp->f_ref);
sfp->timeout = SG_DEFAULT_TIMEOUT;
sfp->timeout_user = SG_DEFAULT_TIMEOUT_USER;
sfp->force_packid = SG_DEF_FORCE_PACK_ID;
@ -2069,14 +2023,7 @@ sg_add_sfp(Sg_device * sdp, int dev)
sfp->keep_orphan = SG_DEF_KEEP_ORPHAN;
sfp->parentdp = sdp;
write_lock_irqsave(&sg_index_lock, iflags);
if (!sdp->headfp)
sdp->headfp = sfp;
else { /* add to tail of existing list */
Sg_fd *pfp = sdp->headfp;
while (pfp->nextfp)
pfp = pfp->nextfp;
pfp->nextfp = sfp;
}
list_add_tail(&sfp->sfd_siblings, &sdp->sfds);
write_unlock_irqrestore(&sg_index_lock, iflags);
SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp: sfp=0x%p\n", sfp));
if (unlikely(sg_big_buff != def_reserved_size))
@ -2087,75 +2034,52 @@ sg_add_sfp(Sg_device * sdp, int dev)
sg_build_reserve(sfp, bufflen);
SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp: bufflen=%d, k_use_sg=%d\n",
sfp->reserve.bufflen, sfp->reserve.k_use_sg));
kref_get(&sdp->d_ref);
__module_get(THIS_MODULE);
return sfp;
}
static void
__sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp)
static void sg_remove_sfp_usercontext(struct work_struct *work)
{
Sg_fd *fp;
Sg_fd *prev_fp;
struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work);
struct sg_device *sdp = sfp->parentdp;
/* Cleanup any responses which were never read(). */
while (sfp->headrp)
sg_finish_rem_req(sfp->headrp);
prev_fp = sdp->headfp;
if (sfp == prev_fp)
sdp->headfp = prev_fp->nextfp;
else {
while ((fp = prev_fp->nextfp)) {
if (sfp == fp) {
prev_fp->nextfp = fp->nextfp;
break;
}
prev_fp = fp;
}
}
if (sfp->reserve.bufflen > 0) {
SCSI_LOG_TIMEOUT(6,
printk("__sg_remove_sfp: bufflen=%d, k_use_sg=%d\n",
(int) sfp->reserve.bufflen, (int) sfp->reserve.k_use_sg));
printk("sg_remove_sfp: bufflen=%d, k_use_sg=%d\n",
(int) sfp->reserve.bufflen,
(int) sfp->reserve.k_use_sg));
sg_remove_scat(&sfp->reserve);
}
sfp->parentdp = NULL;
SCSI_LOG_TIMEOUT(6, printk("__sg_remove_sfp: sfp=0x%p\n", sfp));
SCSI_LOG_TIMEOUT(6,
printk("sg_remove_sfp: %s, sfp=0x%p\n",
sdp->disk->disk_name,
sfp));
kfree(sfp);
scsi_device_put(sdp->device);
sg_put_dev(sdp);
module_put(THIS_MODULE);
}
/* Returns 0 in normal case, 1 when detached and sdp object removed */
static int
sg_remove_sfp(Sg_device * sdp, Sg_fd * sfp)
static void sg_remove_sfp(struct kref *kref)
{
Sg_request *srp;
Sg_request *tsrp;
int dirty = 0;
int res = 0;
for (srp = sfp->headrp; srp; srp = tsrp) {
tsrp = srp->nextrp;
if (sg_srp_done(srp, sfp))
sg_finish_rem_req(srp);
else
++dirty;
}
if (0 == dirty) {
struct sg_fd *sfp = container_of(kref, struct sg_fd, f_ref);
struct sg_device *sdp = sfp->parentdp;
unsigned long iflags;
write_lock_irqsave(&sg_index_lock, iflags);
__sg_remove_sfp(sdp, sfp);
if (sdp->detached && (NULL == sdp->headfp)) {
idr_remove(&sg_index_idr, sdp->index);
kfree(sdp);
res = 1;
}
list_del(&sfp->sfd_siblings);
write_unlock_irqrestore(&sg_index_lock, iflags);
} else {
/* MOD_INC's to inhibit unloading sg and associated adapter driver */
/* only bump the access_count if we actually succeeded in
* throwing another counter on the host module */
scsi_device_get(sdp->device); /* XXX: retval ignored? */
sfp->closed = 1; /* flag dirty state on this fd */
SCSI_LOG_TIMEOUT(1, printk("sg_remove_sfp: worrisome, %d writes pending\n",
dirty));
}
return res;
wake_up_interruptible(&sdp->o_excl_wait);
execute_in_process_context(sg_remove_sfp_usercontext, &sfp->ew);
}
static int
@ -2197,19 +2121,38 @@ sg_last_dev(void)
}
#endif
static Sg_device *
sg_get_dev(int dev)
/* must be called with sg_index_lock held */
static Sg_device *sg_lookup_dev(int dev)
{
Sg_device *sdp;
unsigned long iflags;
return idr_find(&sg_index_idr, dev);
}
read_lock_irqsave(&sg_index_lock, iflags);
sdp = idr_find(&sg_index_idr, dev);
read_unlock_irqrestore(&sg_index_lock, iflags);
static Sg_device *sg_get_dev(int dev)
{
struct sg_device *sdp;
unsigned long flags;
read_lock_irqsave(&sg_index_lock, flags);
sdp = sg_lookup_dev(dev);
if (!sdp)
sdp = ERR_PTR(-ENXIO);
else if (sdp->detached) {
/* If sdp->detached, then the refcount may already be 0, in
* which case it would be a bug to do kref_get().
*/
sdp = ERR_PTR(-ENODEV);
} else
kref_get(&sdp->d_ref);
read_unlock_irqrestore(&sg_index_lock, flags);
return sdp;
}
static void sg_put_dev(struct sg_device *sdp)
{
kref_put(&sdp->d_ref, sg_device_destroy);
}
#ifdef CONFIG_SCSI_PROC_FS
static struct proc_dir_entry *sg_proc_sgp = NULL;
@ -2466,8 +2409,10 @@ static int sg_proc_seq_show_dev(struct seq_file *s, void *v)
struct sg_proc_deviter * it = (struct sg_proc_deviter *) v;
Sg_device *sdp;
struct scsi_device *scsidp;
unsigned long iflags;
sdp = it ? sg_get_dev(it->index) : NULL;
read_lock_irqsave(&sg_index_lock, iflags);
sdp = it ? sg_lookup_dev(it->index) : NULL;
if (sdp && (scsidp = sdp->device) && (!sdp->detached))
seq_printf(s, "%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
scsidp->host->host_no, scsidp->channel,
@ -2478,6 +2423,7 @@ static int sg_proc_seq_show_dev(struct seq_file *s, void *v)
(int) scsi_device_online(scsidp));
else
seq_printf(s, "-1\t-1\t-1\t-1\t-1\t-1\t-1\t-1\t-1\n");
read_unlock_irqrestore(&sg_index_lock, iflags);
return 0;
}
@ -2491,16 +2437,20 @@ static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v)
struct sg_proc_deviter * it = (struct sg_proc_deviter *) v;
Sg_device *sdp;
struct scsi_device *scsidp;
unsigned long iflags;
sdp = it ? sg_get_dev(it->index) : NULL;
read_lock_irqsave(&sg_index_lock, iflags);
sdp = it ? sg_lookup_dev(it->index) : NULL;
if (sdp && (scsidp = sdp->device) && (!sdp->detached))
seq_printf(s, "%8.8s\t%16.16s\t%4.4s\n",
scsidp->vendor, scsidp->model, scsidp->rev);
else
seq_printf(s, "<no active device>\n");
read_unlock_irqrestore(&sg_index_lock, iflags);
return 0;
}
/* must be called while holding sg_index_lock */
static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
{
int k, m, new_interface, blen, usg;
@ -2510,9 +2460,12 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
const char * cp;
unsigned int ms;
for (k = 0; (fp = sg_get_nth_sfp(sdp, k)); ++k) {
k = 0;
list_for_each_entry(fp, &sdp->sfds, sfd_siblings) {
k++;
read_lock(&fp->rq_list_lock); /* irqs already disabled */
seq_printf(s, " FD(%d): timeout=%dms bufflen=%d "
"(res)sgat=%d low_dma=%d\n", k + 1,
"(res)sgat=%d low_dma=%d\n", k,
jiffies_to_msecs(fp->timeout),
fp->reserve.bufflen,
(int) fp->reserve.k_use_sg,
@ -2520,7 +2473,9 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
seq_printf(s, " cmd_q=%d f_packid=%d k_orphan=%d closed=%d\n",
(int) fp->cmd_q, (int) fp->force_packid,
(int) fp->keep_orphan, (int) fp->closed);
for (m = 0; (srp = sg_get_nth_request(fp, m)); ++m) {
for (m = 0, srp = fp->headrp;
srp != NULL;
++m, srp = srp->nextrp) {
hp = &srp->header;
new_interface = (hp->interface_id == '\0') ? 0 : 1;
if (srp->res_used) {
@ -2557,6 +2512,7 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp)
}
if (0 == m)
seq_printf(s, " No requests active\n");
read_unlock(&fp->rq_list_lock);
}
}
@ -2569,25 +2525,20 @@ static int sg_proc_seq_show_debug(struct seq_file *s, void *v)
{
struct sg_proc_deviter * it = (struct sg_proc_deviter *) v;
Sg_device *sdp;
unsigned long iflags;
if (it && (0 == it->index)) {
seq_printf(s, "max_active_device=%d(origin 1)\n",
(int)it->max);
seq_printf(s, " def_reserved_size=%d\n", sg_big_buff);
}
sdp = it ? sg_get_dev(it->index) : NULL;
if (sdp) {
read_lock_irqsave(&sg_index_lock, iflags);
sdp = it ? sg_lookup_dev(it->index) : NULL;
if (sdp && !list_empty(&sdp->sfds)) {
struct scsi_device *scsidp = sdp->device;
if (NULL == scsidp) {
seq_printf(s, "device %d detached ??\n",
(int)it->index);
return 0;
}
if (sg_get_nth_sfp(sdp, 0)) {
seq_printf(s, " >>> device=%s ",
sdp->disk->disk_name);
seq_printf(s, " >>> device=%s ", sdp->disk->disk_name);
if (sdp->detached)
seq_printf(s, "detached pending close ");
else
@ -2599,9 +2550,9 @@ static int sg_proc_seq_show_debug(struct seq_file *s, void *v)
scsidp->host->hostt->emulated);
seq_printf(s, " sg_tablesize=%d excl=%d\n",
sdp->sg_tablesize, sdp->exclude);
}
sg_proc_debug_helper(s, sdp);
}
read_unlock_irqrestore(&sg_index_lock, iflags);
return 0;
}

6
drivers/scsi/st.c
View File

@ -374,9 +374,9 @@ static int st_chk_result(struct scsi_tape *STp, struct st_request * SRpnt)
if (!debugging) { /* Abnormal conditions for tape */
if (!cmdstatp->have_sense)
printk(KERN_WARNING
"%s: Error %x (sugg. bt 0x%x, driver bt 0x%x, host bt 0x%x).\n",
name, result, suggestion(result),
driver_byte(result) & DRIVER_MASK, host_byte(result));
"%s: Error %x (driver bt 0x%x, host bt 0x%x).\n",
name, result, driver_byte(result),
host_byte(result));
else if (cmdstatp->have_sense &&
scode != NO_SENSE &&
scode != RECOVERED_ERROR &&

107
drivers/scsi/stex.c
View File

@ -1,7 +1,7 @@
/*
* SuperTrak EX Series Storage Controller driver for Linux
*
* Copyright (C) 2005, 2006 Promise Technology Inc.
* Copyright (C) 2005-2009 Promise Technology Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@ -36,8 +36,8 @@
#include <scsi/scsi_eh.h>
#define DRV_NAME "stex"
#define ST_DRIVER_VERSION "3.6.0000.1"
#define ST_VER_MAJOR 3
#define ST_DRIVER_VERSION "4.6.0000.1"
#define ST_VER_MAJOR 4
#define ST_VER_MINOR 6
#define ST_OEM 0
#define ST_BUILD_VER 1
@ -103,7 +103,7 @@ enum {
MU_REQ_COUNT = (MU_MAX_REQUEST + 1),
MU_STATUS_COUNT = (MU_MAX_REQUEST + 1),
STEX_CDB_LENGTH = MAX_COMMAND_SIZE,
STEX_CDB_LENGTH = 16,
REQ_VARIABLE_LEN = 1024,
STATUS_VAR_LEN = 128,
ST_CAN_QUEUE = MU_MAX_REQUEST,
@ -114,15 +114,19 @@ enum {
SG_CF_EOT = 0x80, /* end of table */
SG_CF_64B = 0x40, /* 64 bit item */
SG_CF_HOST = 0x20, /* sg in host memory */
MSG_DATA_DIR_ND = 0,
MSG_DATA_DIR_IN = 1,
MSG_DATA_DIR_OUT = 2,
st_shasta = 0,
st_vsc = 1,
st_vsc1 = 2,
st_yosemite = 3,
st_seq = 4,
PASSTHRU_REQ_TYPE = 0x00000001,
PASSTHRU_REQ_NO_WAKEUP = 0x00000100,
ST_INTERNAL_TIMEOUT = 30,
ST_INTERNAL_TIMEOUT = 180,
ST_TO_CMD = 0,
ST_FROM_CMD = 1,
@ -152,35 +156,6 @@ enum {
ST_ADDITIONAL_MEM = 0x200000,
};
/* SCSI inquiry data */
typedef struct st_inq {
u8 DeviceType :5;
u8 DeviceTypeQualifier :3;
u8 DeviceTypeModifier :7;
u8 RemovableMedia :1;
u8 Versions;
u8 ResponseDataFormat :4;
u8 HiSupport :1;
u8 NormACA :1;
u8 ReservedBit :1;
u8 AERC :1;
u8 AdditionalLength;
u8 Reserved[2];
u8 SoftReset :1;
u8 CommandQueue :1;
u8 Reserved2 :1;
u8 LinkedCommands :1;
u8 Synchronous :1;
u8 Wide16Bit :1;
u8 Wide32Bit :1;
u8 RelativeAddressing :1;
u8 VendorId[8];
u8 ProductId[16];
u8 ProductRevisionLevel[4];
u8 VendorSpecific[20];
u8 Reserved3[40];
} ST_INQ;
struct st_sgitem {
u8 ctrl; /* SG_CF_xxx */
u8 reserved[3];
@ -222,7 +197,7 @@ struct req_msg {
u8 target;
u8 task_attr;
u8 task_manage;
u8 prd_entry;
u8 data_dir;
u8 payload_sz; /* payload size in 4-byte, not used */
u8 cdb[STEX_CDB_LENGTH];
u8 variable[REQ_VARIABLE_LEN];
@ -284,7 +259,7 @@ struct st_drvver {
#define MU_REQ_BUFFER_SIZE (MU_REQ_COUNT * sizeof(struct req_msg))
#define MU_STATUS_BUFFER_SIZE (MU_STATUS_COUNT * sizeof(struct status_msg))
#define MU_BUFFER_SIZE (MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE)
#define STEX_EXTRA_SIZE max(sizeof(struct st_frame), sizeof(ST_INQ))
#define STEX_EXTRA_SIZE sizeof(struct st_frame)
#define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE)
struct st_ccb {
@ -346,8 +321,8 @@ MODULE_VERSION(ST_DRIVER_VERSION);
static void stex_gettime(__le32 *time)
{
struct timeval tv;
do_gettimeofday(&tv);
do_gettimeofday(&tv);
*time = cpu_to_le32(tv.tv_sec & 0xffffffff);
*(time + 1) = cpu_to_le32((tv.tv_sec >> 16) >> 16);
}
@ -368,7 +343,7 @@ static void stex_invalid_field(struct scsi_cmnd *cmd,
{
cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
/* "Invalid field in cbd" */
/* "Invalid field in cdb" */
scsi_build_sense_buffer(0, cmd->sense_buffer, ILLEGAL_REQUEST, 0x24,
0x0);
done(cmd);
@ -497,6 +472,7 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
unsigned int id,lun;
struct req_msg *req;
u16 tag;
host = cmd->device->host;
id = cmd->device->id;
lun = cmd->device->lun;
@ -508,6 +484,7 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
static char ms10_caching_page[12] =
{ 0, 0x12, 0, 0, 0, 0, 0, 0, 0x8, 0xa, 0x4, 0 };
unsigned char page;
page = cmd->cmnd[2] & 0x3f;
if (page == 0x8 || page == 0x3f) {
scsi_sg_copy_from_buffer(cmd, ms10_caching_page,
@ -551,6 +528,7 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
struct st_drvver ver;
size_t cp_len = sizeof(ver);
ver.major = ST_VER_MAJOR;
ver.minor = ST_VER_MINOR;
ver.oem = ST_OEM;
@ -584,6 +562,13 @@ stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
/* cdb */
memcpy(req->cdb, cmd->cmnd, STEX_CDB_LENGTH);
if (cmd->sc_data_direction == DMA_FROM_DEVICE)
req->data_dir = MSG_DATA_DIR_IN;
else if (cmd->sc_data_direction == DMA_TO_DEVICE)
req->data_dir = MSG_DATA_DIR_OUT;
else
req->data_dir = MSG_DATA_DIR_ND;
hba->ccb[tag].cmd = cmd;
hba->ccb[tag].sense_bufflen = SCSI_SENSE_BUFFERSIZE;
hba->ccb[tag].sense_buffer = cmd->sense_buffer;
@ -642,6 +627,7 @@ static void stex_copy_data(struct st_ccb *ccb,
struct status_msg *resp, unsigned int variable)
{
size_t count = variable;
if (resp->scsi_status != SAM_STAT_GOOD) {
if (ccb->sense_buffer != NULL)
memcpy(ccb->sense_buffer, resp->variable,
@ -661,24 +647,6 @@ static void stex_ys_commands(struct st_hba *hba,
resp->scsi_status != SAM_STAT_CHECK_CONDITION) {
scsi_set_resid(ccb->cmd, scsi_bufflen(ccb->cmd) -
le32_to_cpu(*(__le32 *)&resp->variable[0]));
return;
}
if (resp->srb_status != 0)
return;
/* determine inquiry command status by DeviceTypeQualifier */
if (ccb->cmd->cmnd[0] == INQUIRY &&
resp->scsi_status == SAM_STAT_GOOD) {
ST_INQ *inq_data;
scsi_sg_copy_to_buffer(ccb->cmd, hba->copy_buffer,
STEX_EXTRA_SIZE);
inq_data = (ST_INQ *)hba->copy_buffer;
if (inq_data->DeviceTypeQualifier != 0)
ccb->srb_status = SRB_STATUS_SELECTION_TIMEOUT;
else
ccb->srb_status = SRB_STATUS_SUCCESS;
}
}
@ -746,6 +714,7 @@ static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
stex_copy_data(ccb, resp, size);
}
ccb->req = NULL;
ccb->srb_status = resp->srb_status;
ccb->scsi_status = resp->scsi_status;
@ -983,6 +952,7 @@ static int stex_reset(struct scsi_cmnd *cmd)
struct st_hba *hba;
unsigned long flags;
unsigned long before;
hba = (struct st_hba *) &cmd->device->host->hostdata[0];
printk(KERN_INFO DRV_NAME
@ -1067,6 +1037,7 @@ static struct scsi_host_template driver_template = {
static int stex_set_dma_mask(struct pci_dev * pdev)
{
int ret;
if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)
&& !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
return 0;
@ -1124,9 +1095,9 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
hba->cardtype = (unsigned int) id->driver_data;
if (hba->cardtype == st_vsc && (pdev->subsystem_device & 0xf) == 0x1)
if (hba->cardtype == st_vsc && (pdev->subsystem_device & 1))
hba->cardtype = st_vsc1;
hba->dma_size = (hba->cardtype == st_vsc1) ?
hba->dma_size = (hba->cardtype == st_vsc1 || hba->cardtype == st_seq) ?
(STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);
hba->dma_mem = dma_alloc_coherent(&pdev->dev,
hba->dma_size, &hba->dma_handle, GFP_KERNEL);
@ -1146,10 +1117,10 @@ stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
host->max_lun = 8;
host->max_id = 16 + 1;
} else if (hba->cardtype == st_yosemite) {
host->max_lun = 128;
host->max_lun = 256;
host->max_id = 1 + 1;
} else {
/* st_vsc and st_vsc1 */
/* st_vsc , st_vsc1 and st_seq */
host->max_lun = 1;
host->max_id = 128 + 1;
}
@ -1299,18 +1270,10 @@ static struct pci_device_id stex_pci_tbl[] = {
{ 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
/* st_yosemite */
{ 0x105a, 0x8650, PCI_ANY_ID, 0x4600, 0, 0,
st_yosemite }, /* SuperTrak EX4650 */
{ 0x105a, 0x8650, PCI_ANY_ID, 0x4610, 0, 0,
st_yosemite }, /* SuperTrak EX4650o */
{ 0x105a, 0x8650, PCI_ANY_ID, 0x8600, 0, 0,
st_yosemite }, /* SuperTrak EX8650EL */
{ 0x105a, 0x8650, PCI_ANY_ID, 0x8601, 0, 0,
st_yosemite }, /* SuperTrak EX8650 */
{ 0x105a, 0x8650, PCI_ANY_ID, 0x8602, 0, 0,
st_yosemite }, /* SuperTrak EX8654 */
{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
st_yosemite }, /* generic st_yosemite */
{ 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite },
/* st_seq */
{ 0x105a, 0x3360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_seq },
{ } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, stex_pci_tbl);

117
drivers/scsi/sym53c8xx_2/sym_glue.c
View File

@ -792,9 +792,9 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev)
/*
* Select queue depth from driver setup.
* Donnot use more than configured by user.
* Use at least 2.
* Donnot use more than our maximum.
* Do not use more than configured by user.
* Use at least 1.
* Do not use more than our maximum.
*/
reqtags = sym_driver_setup.max_tag;
if (reqtags > tp->usrtags)
@ -803,7 +803,7 @@ static int sym53c8xx_slave_configure(struct scsi_device *sdev)
reqtags = 0;
if (reqtags > SYM_CONF_MAX_TAG)
reqtags = SYM_CONF_MAX_TAG;
depth_to_use = reqtags ? reqtags : 2;
depth_to_use = reqtags ? reqtags : 1;
scsi_adjust_queue_depth(sdev,
sdev->tagged_supported ? MSG_SIMPLE_TAG : 0,
depth_to_use);
@ -1235,15 +1235,30 @@ static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer,
}
#endif /* SYM_LINUX_PROC_INFO_SUPPORT */
/*
* Free resources claimed by sym_iomap_device(). Note that
* sym_free_resources() should be used instead of this function after calling
* sym_attach().
*/
static void __devinit
sym_iounmap_device(struct sym_device *device)
{
if (device->s.ioaddr)
pci_iounmap(device->pdev, device->s.ioaddr);
if (device->s.ramaddr)
pci_iounmap(device->pdev, device->s.ramaddr);
}
/*
* Free controller resources.
*/
static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev)
static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev,
int do_free_irq)
{
/*
* Free O/S specific resources.
*/
if (pdev->irq)
if (do_free_irq)
free_irq(pdev->irq, np->s.host);
if (np->s.ioaddr)
pci_iounmap(pdev, np->s.ioaddr);
@ -1271,10 +1286,11 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
{
struct sym_data *sym_data;
struct sym_hcb *np = NULL;
struct Scsi_Host *shost;
struct Scsi_Host *shost = NULL;
struct pci_dev *pdev = dev->pdev;
unsigned long flags;
struct sym_fw *fw;
int do_free_irq = 0;
printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n",
unit, dev->chip.name, pdev->revision, pci_name(pdev),
@ -1285,11 +1301,11 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
*/
fw = sym_find_firmware(&dev->chip);
if (!fw)
return NULL;
goto attach_failed;
shost = scsi_host_alloc(tpnt, sizeof(*sym_data));
if (!shost)
return NULL;
goto attach_failed;
sym_data = shost_priv(shost);
/*
@ -1319,6 +1335,10 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
np->maxoffs = dev->chip.offset_max;
np->maxburst = dev->chip.burst_max;
np->myaddr = dev->host_id;
np->mmio_ba = (u32)dev->mmio_base;
np->ram_ba = (u32)dev->ram_base;
np->s.ioaddr = dev->s.ioaddr;
np->s.ramaddr = dev->s.ramaddr;
/*
* Edit its name.
@ -1334,22 +1354,6 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
goto attach_failed;
}
/*
* Try to map the controller chip to
* virtual and physical memory.
*/
np->mmio_ba = (u32)dev->mmio_base;
np->s.ioaddr = dev->s.ioaddr;
np->s.ramaddr = dev->s.ramaddr;
/*
* Map on-chip RAM if present and supported.
*/
if (!(np->features & FE_RAM))
dev->ram_base = 0;
if (dev->ram_base)
np->ram_ba = (u32)dev->ram_base;
if (sym_hcb_attach(shost, fw, dev->nvram))
goto attach_failed;
@ -1364,6 +1368,7 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
sym_name(np), pdev->irq);
goto attach_failed;
}
do_free_irq = 1;
/*
* After SCSI devices have been opened, we cannot
@ -1416,11 +1421,12 @@ static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
"TERMINATION, DEVICE POWER etc.!\n", sym_name(np));
spin_unlock_irqrestore(shost->host_lock, flags);
attach_failed:
if (!shost)
return NULL;
printf_info("%s: giving up ...\n", sym_name(np));
printf_info("sym%d: giving up ...\n", unit);
if (np)
sym_free_resources(np, pdev);
sym_free_resources(np, pdev, do_free_irq);
else
sym_iounmap_device(dev);
if (shost)
scsi_host_put(shost);
return NULL;
@ -1550,22 +1556,19 @@ static int __devinit sym_set_workarounds(struct sym_device *device)
}
/*
* Read and check the PCI configuration for any detected NCR
* boards and save data for attaching after all boards have
* been detected.
* Map HBA registers and on-chip SRAM (if present).
*/
static void __devinit
sym_init_device(struct pci_dev *pdev, struct sym_device *device)
static int __devinit
sym_iomap_device(struct sym_device *device)
{
int i = 2;
struct pci_dev *pdev = device->pdev;
struct pci_bus_region bus_addr;
device->host_id = SYM_SETUP_HOST_ID;
device->pdev = pdev;
int i = 2;
pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]);
device->mmio_base = bus_addr.start;
if (device->chip.features & FE_RAM) {
/*
* If the BAR is 64-bit, resource 2 will be occupied by the
* upper 32 bits
@ -1574,6 +1577,7 @@ sym_init_device(struct pci_dev *pdev, struct sym_device *device)
i++;
pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]);
device->ram_base = bus_addr.start;
}
#ifdef CONFIG_SCSI_SYM53C8XX_MMIO
if (device->mmio_base)
@ -1583,9 +1587,21 @@ sym_init_device(struct pci_dev *pdev, struct sym_device *device)
if (!device->s.ioaddr)
device->s.ioaddr = pci_iomap(pdev, 0,
pci_resource_len(pdev, 0));
if (device->ram_base)
if (!device->s.ioaddr) {
dev_err(&pdev->dev, "could not map registers; giving up.\n");
return -EIO;
}
if (device->ram_base) {
device->s.ramaddr = pci_iomap(pdev, i,
pci_resource_len(pdev, i));
if (!device->s.ramaddr) {
dev_warn(&pdev->dev,
"could not map SRAM; continuing anyway.\n");
device->ram_base = 0;
}
}
return 0;
}
/*
@ -1659,7 +1675,8 @@ static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev)
udelay(10);
OUTB(np, nc_istat, 0);
sym_free_resources(np, pdev);
sym_free_resources(np, pdev, 1);
scsi_host_put(shost);
return 1;
}
@ -1696,9 +1713,13 @@ static int __devinit sym2_probe(struct pci_dev *pdev,
struct sym_device sym_dev;
struct sym_nvram nvram;
struct Scsi_Host *shost;
int do_iounmap = 0;
int do_disable_device = 1;
memset(&sym_dev, 0, sizeof(sym_dev));
memset(&nvram, 0, sizeof(nvram));
sym_dev.pdev = pdev;
sym_dev.host_id = SYM_SETUP_HOST_ID;
if (pci_enable_device(pdev))
goto leave;
@ -1708,12 +1729,17 @@ static int __devinit sym2_probe(struct pci_dev *pdev,
if (pci_request_regions(pdev, NAME53C8XX))
goto disable;
sym_init_device(pdev, &sym_dev);
if (sym_check_supported(&sym_dev))
goto free;
if (sym_check_raid(&sym_dev))
goto leave; /* Don't disable the device */
if (sym_iomap_device(&sym_dev))
goto free;
do_iounmap = 1;
if (sym_check_raid(&sym_dev)) {
do_disable_device = 0; /* Don't disable the device */
goto free;
}
if (sym_set_workarounds(&sym_dev))
goto free;
@ -1722,6 +1748,7 @@ static int __devinit sym2_probe(struct pci_dev *pdev,
sym_get_nvram(&sym_dev, &nvram);
do_iounmap = 0; /* Don't sym_iounmap_device() after sym_attach(). */
shost = sym_attach(&sym2_template, attach_count, &sym_dev);
if (!shost)
goto free;
@ -1737,8 +1764,11 @@ static int __devinit sym2_probe(struct pci_dev *pdev,
detach:
sym_detach(pci_get_drvdata(pdev), pdev);
free:
if (do_iounmap)
sym_iounmap_device(&sym_dev);
pci_release_regions(pdev);
disable:
if (do_disable_device)
pci_disable_device(pdev);
leave:
return -ENODEV;
@ -1749,7 +1779,6 @@ static void sym2_remove(struct pci_dev *pdev)
struct Scsi_Host *shost = pci_get_drvdata(pdev);
scsi_remove_host(shost);
scsi_host_put(shost);
sym_detach(shost, pdev);
pci_release_regions(pdev);
pci_disable_device(pdev);

64
drivers/scsi/sym53c8xx_2/sym_hipd.c
View File

@ -1433,13 +1433,12 @@ static int sym_prepare_nego(struct sym_hcb *np, struct sym_ccb *cp, u_char *msgp
* Many devices implement PPR in a buggy way, so only use it if we
* really want to.
*/
if (goal->offset &&
(goal->iu || goal->dt || goal->qas || (goal->period < 0xa))) {
if (goal->renego == NS_PPR || (goal->offset &&
(goal->iu || goal->dt || goal->qas || (goal->period < 0xa)))) {
nego = NS_PPR;
} else if (spi_width(starget) != goal->width) {
} else if (goal->renego == NS_WIDE || goal->width) {
nego = NS_WIDE;
} else if (spi_period(starget) != goal->period ||
spi_offset(starget) != goal->offset) {
} else if (goal->renego == NS_SYNC || goal->offset) {
nego = NS_SYNC;
} else {
goal->check_nego = 0;
@ -2040,6 +2039,29 @@ static void sym_settrans(struct sym_hcb *np, int target, u_char opts, u_char ofs
}
}
static void sym_announce_transfer_rate(struct sym_tcb *tp)
{
struct scsi_target *starget = tp->starget;
if (tp->tprint.period != spi_period(starget) ||
tp->tprint.offset != spi_offset(starget) ||
tp->tprint.width != spi_width(starget) ||
tp->tprint.iu != spi_iu(starget) ||
tp->tprint.dt != spi_dt(starget) ||
tp->tprint.qas != spi_qas(starget) ||
!tp->tprint.check_nego) {
tp->tprint.period = spi_period(starget);
tp->tprint.offset = spi_offset(starget);
tp->tprint.width = spi_width(starget);
tp->tprint.iu = spi_iu(starget);
tp->tprint.dt = spi_dt(starget);
tp->tprint.qas = spi_qas(starget);
tp->tprint.check_nego = 1;
spi_display_xfer_agreement(starget);
}
}
/*
* We received a WDTR.
* Let everything be aware of the changes.
@ -2049,11 +2071,13 @@ static void sym_setwide(struct sym_hcb *np, int target, u_char wide)
struct sym_tcb *tp = &np->target[target];
struct scsi_target *starget = tp->starget;
if (spi_width(starget) == wide)
return;
sym_settrans(np, target, 0, 0, 0, wide, 0, 0);
if (wide)
tp->tgoal.renego = NS_WIDE;
else
tp->tgoal.renego = 0;
tp->tgoal.check_nego = 0;
tp->tgoal.width = wide;
spi_offset(starget) = 0;
spi_period(starget) = 0;
@ -2063,7 +2087,7 @@ static void sym_setwide(struct sym_hcb *np, int target, u_char wide)
spi_qas(starget) = 0;
if (sym_verbose >= 3)
spi_display_xfer_agreement(starget);
sym_announce_transfer_rate(tp);
}
/*
@ -2080,6 +2104,12 @@ sym_setsync(struct sym_hcb *np, int target,
sym_settrans(np, target, 0, ofs, per, wide, div, fak);
if (wide)
tp->tgoal.renego = NS_WIDE;
else if (ofs)
tp->tgoal.renego = NS_SYNC;
else
tp->tgoal.renego = 0;
spi_period(starget) = per;
spi_offset(starget) = ofs;
spi_iu(starget) = spi_dt(starget) = spi_qas(starget) = 0;
@ -2090,7 +2120,7 @@ sym_setsync(struct sym_hcb *np, int target,
tp->tgoal.check_nego = 0;
}
spi_display_xfer_agreement(starget);
sym_announce_transfer_rate(tp);
}
/*
@ -2106,6 +2136,10 @@ sym_setpprot(struct sym_hcb *np, int target, u_char opts, u_char ofs,
sym_settrans(np, target, opts, ofs, per, wide, div, fak);
if (wide || ofs)
tp->tgoal.renego = NS_PPR;
else
tp->tgoal.renego = 0;
spi_width(starget) = tp->tgoal.width = wide;
spi_period(starget) = tp->tgoal.period = per;
spi_offset(starget) = tp->tgoal.offset = ofs;
@ -2114,7 +2148,7 @@ sym_setpprot(struct sym_hcb *np, int target, u_char opts, u_char ofs,
spi_qas(starget) = tp->tgoal.qas = !!(opts & PPR_OPT_QAS);
tp->tgoal.check_nego = 0;
spi_display_xfer_agreement(starget);
sym_announce_transfer_rate(tp);
}
/*
@ -3516,6 +3550,7 @@ static void sym_sir_task_recovery(struct sym_hcb *np, int num)
spi_dt(starget) = 0;
spi_qas(starget) = 0;
tp->tgoal.check_nego = 1;
tp->tgoal.renego = 0;
}
/*
@ -5135,9 +5170,14 @@ int sym_queue_scsiio(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *
/*
* Build a negotiation message if needed.
* (nego_status is filled by sym_prepare_nego())
*
* Always negotiate on INQUIRY and REQUEST SENSE.
*
*/
cp->nego_status = 0;
if (tp->tgoal.check_nego && !tp->nego_cp && lp) {
if ((tp->tgoal.check_nego ||
cmd->cmnd[0] == INQUIRY || cmd->cmnd[0] == REQUEST_SENSE) &&
!tp->nego_cp && lp) {
msglen += sym_prepare_nego(np, cp, msgptr + msglen);
}

4
drivers/scsi/sym53c8xx_2/sym_hipd.h
View File

@ -354,6 +354,7 @@ struct sym_trans {
unsigned int dt:1;
unsigned int qas:1;
unsigned int check_nego:1;
unsigned int renego:2;
};
/*
@ -419,6 +420,9 @@ struct sym_tcb {
/* Transfer goal */
struct sym_trans tgoal;
/* Last printed transfer speed */
struct sym_trans tprint;
/*
* Keep track of the CCB used for the negotiation in order
* to ensure that only 1 negotiation is queued at a time.

2
drivers/usb/storage/transport.c
View File

@ -787,7 +787,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
/* Did we transfer less than the minimum amount required? */
if ((srb->result == SAM_STAT_GOOD || srb->sense_buffer[2] == 0) &&
scsi_bufflen(srb) - scsi_get_resid(srb) < srb->underflow)
srb->result = (DID_ERROR << 16) | (SUGGEST_RETRY << 24);
srb->result = DID_ERROR << 16;
last_sector_hacks(us, srb);
return;

2
include/linux/bsg.h
View File

@ -1,6 +1,8 @@
#ifndef BSG_H
#define BSG_H
#include <linux/types.h>
#define BSG_PROTOCOL_SCSI 0
#define BSG_SUB_PROTOCOL_SCSI_CMD 0

1
include/linux/if_ether.h
View File

@ -78,6 +78,7 @@
#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
#define ETH_P_AOE 0x88A2 /* ATA over Ethernet */
#define ETH_P_TIPC 0x88CA /* TIPC */
#define ETH_P_FCOE 0x8906 /* Fibre Channel over Ethernet */
#define ETH_P_EDSA 0xDADA /* Ethertype DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
/*

1
include/linux/major.h
View File

@ -171,5 +171,6 @@
#define VIOTAPE_MAJOR 230
#define BLOCK_EXT_MAJOR 259
#define SCSI_OSD_MAJOR 260 /* open-osd's OSD scsi device */
#endif

1
include/linux/miscdevice.h
View File

@ -26,6 +26,7 @@
#define TUN_MINOR 200
#define MWAVE_MINOR 219 /* ACP/Mwave Modem */
#define MPT_MINOR 220
#define MPT2SAS_MINOR 221
#define HPET_MINOR 228
#define FUSE_MINOR 229
#define KVM_MINOR 232

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