Commit Graph

824925 Commits

Author SHA1 Message Date
Bart Van Assche
bd432bb53c scsi: qla2xxx: Leave a blank line after declarations
This patch improves readability of the qla2xxx source code.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 22:04:39 -04:00
Bart Van Assche
2703eaaf4e scsi: qla2xxx: Use tabs to indent code
Most but not all code in the qla2xxx driver uses tabs for indentation.
Make the qla2xxx code easier to read by using tabs consistently for
indentation. This patch improves conformance with the Linux kernel coding
style.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 22:04:39 -04:00
John Garry
3c236f8cc6 scsi: libsas: Print expander PHY indexes in decimal
Currently we print expander PHY indexes in a mix of decimal and hex.

It is more consistent and also more convenient to read decimal, so
make this change.

We use width of 2 for expander and 1 for root PHYs prints.

Some lines which were needlessly spilling multiple lines are unified.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 18:55:01 -04:00
John Garry
d8649fc1c5 scsi: libsas: Do discovery on empty PHY to update PHY info
When we discover the PHY is empty in sas_rediscover_dev(), the PHY
information (like negotiated linkrate) is not updated.

As such, for a user examining sysfs for that PHY, they would see
incorrect values:

root@(none)$ cd /sys/class/sas_phy/phy-0:0:20
root@(none)$ more negotiated_linkrate
3.0 Gbit
root@(none)$ echo 0 > enable
root@(none)$ more negotiated_linkrate
3.0 Gbit

So fix this, simply discover the PHY again, even though we know it's empty;
in the above example, this gives us:

root@(none)$ more negotiated_linkrate
Phy disabled

We must do this after unregistering the device associated with the PHY
(in sas_unregister_devs_sas_addr()).

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 18:55:01 -04:00
John Garry
085f104a83 scsi: libsas: Inject revalidate event for root port event
According to the SAS spec, an expander device shall transmit BROADCAST
(CHANGE) from at least one phy in each expander port other than the
expander port that is the cause for transmitting BROADCAST (CHANGE).

As such, for when the link is lost for a root PHY attached to an expander
PHY, we get no broadcast event.

This causes an issue for libsas, in that we will not revalidate the domain
for these events.

As a solution, for when a root PHY is formed or deformed from a root port,
insert a broadcast event to trigger a domain revalidation.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 18:55:00 -04:00
John Garry
a5b38d3159 scsi: libsas: Improve vague log in SAS rediscovery
When an expander PHY which was part of a wideport disconnects, we would see
a log like this from sas_rediscover():

[   39.695554] sas: phy20 part of wide port with phy16

Here, phy20 is the PHY that disconnected, and phy16 is the lowest indexed
member PHY of the wideport.

The log implies the phy20 is still part of the wideport with phy16, so is
misleading or, at least, vague.

Improve the logs in SAS rediscovery by removing this log and adding a log
in sas_rediscover_dev() to tell what's really going on.

While we're at it, also make the logs in sas_find_bcast_dev() more
informative (and more consistent with the reset of the expander logs).

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 18:55:00 -04:00
John Garry
f7ddb43eed scsi: libsas: Try to retain programmed min linkrate for SATA min pathway unmatch fixing
Currently for fixing the linkrate matching during discovery such that the
linkrate of a SATA PHY does not exceed min pathway to initiator, we set the
SATA PHY programmed min linkrate to the same value as the programmed max
linkrate.

This is unnecessary, and we should be able to keep the same programmed min
linkrate if it is already lower than this new max programmed linkrate.

This patch makes that change.

In effect, this will not make much difference since we generally will
negotiate a linkrate at the programmed max linkrate, and the programmed min
linkrate will have no impact.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 18:55:00 -04:00
John Garry
7b27c5fe24 scsi: libsas: Stop hardcoding SAS address length
Many times we use 8 for SAS address length, while we already have a macro
for this - SAS_ADDR_SIZE.

Replace instances of this with the macro. However, don't touch the SAS
address array sizes sas.h, as these are defined according to the SAS spec.

Some missing whitespaces are also added, and whitespace indentation
in sas_hash_addr() is also fixed (see sas_hash_addr()).

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-15 18:55:00 -04:00
Xiang Chen
01d4e3a2fc scsi: hisi_sas: Some misc tidy-up
Do some minor tidy-up.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Luo Jiaxing
246ea3c0ad scsi: hisi_sas: Don't fail IT nexus reset for Open Reject timeout
Currently we call hisi_sas_softreset_ata_disk() in
hisi_sas_I_T_nexus_reset().

If this fails for open reject reason, there is no reason to fail the IT
nexus reset, so only fail for TMF_RESP_FUNC_FAILED.

Some other strings spilled over multiple lines are reunited.

Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Luo Jiaxing
a311570027 scsi: hisi_sas: Don't hard reset disk during controller reset
In the function of hisi_sas_init_device(), we added ops->hardreset() to
clear affiliation of STP target port or handle [STP pending] state.

Function hisi_sas_init_device() will be called when a device is found or
during controller reset. At controller reset, we call
hisi_sas_init_device() to re-init the disks, so calling hardreset() is
unnecessary and it also will cause some delay at controller reset.

Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Xiaofei Tan
3168d4f800 scsi: hisi_sas: Support all RAS events with MSI interrupts
This patch is to switch HW all error handling from PCI AER to MSI interrupt
due to non-standard PCI implementation. All HW errors which were being
reported through PCI AER can be reported through MSI interrupt also.

Do two things to complete the switch:

1. Notify FW to switch to MSI handling through ACPI DSM.

2. Add MSI handling for some hw errors, ECC errors and poison errors (we
   also call some of them AXI reuser error). They were handled only through
   PCI AER before.

For old FW reporting PCI AER events, the PCI AER handler will see that the
driver on longer support AER, and will leave the device in offlined state,
which is safe.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Xiang Chen
adb5b38c19 scsi: hisi_sas: allocate different SAS address for directly attached situation
In commit 8b8d665315 ("scsi: hisi_sas: make SAS address of SATA disks
unique"), we ensured that each SATA disk in the system has a unique SAS
address, even if it is fake. That was for v2 hw.

Add this for v3 hw.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Xiang Chen
18a54b329c scsi: hisi_sas: Adjust the printk format of functions hisi_sas_init_device()
In function hisi_sas_init_device(), the log is as follows when error for
hardreset:

  hisi_sas_v3_hw 0000:74:02.0: SATA disk hardreset fail: 0xffffffed

Actually if hardreset failed, its return value is negative, so change the
print format from %x to %d.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
John Garry
c63b88ccff scsi: hisi_sas: Fix for setting the PHY linkrate when disconnected
In commit efdcad62e7 ("scsi: hisi_sas: Set PHY linkrate when
disconnected"), we use the sas_phy_data.enable flag to track whether the
PHY was enabled or not, so that we know if we should set the PHY negotiated
linkrate at SAS_LINK_RATE_UNKNOWN or SAS_PHY_DISABLED.

However, it is not proper to use sas_phy_data.enable, since it is only set
when libsas attempts to set the PHY disabled/enabled; hence, it may not
even have an initial value.

As a solution to this problem, introduce hisi_sas_phy.enable to track
whether the PHY is enabled or not, so that we can set the negotiated
linkrate properly when the PHY comes down.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Xiang Chen
447f78c0e1 scsi: hisi_sas: Remedy inconsistent PHY down state in software
Currently there are two scenarioes which may cause PHY state of hardware
(which is 0) is inconsistent with the state held in software:

- Unplug SAS wire before get_phys_state when SAS controller reset, then the
  interrupts of phy down are ignored, phy state is 0 before reset, and it
  also gets 0 after reset, so phy down doesn't occur even if unplugged SAS
  wire;

- For v3 hw later version, it will close bus when 2 bit ECC error occurs.
  So if unplug SAS wire at that time, interrupts of phy down also not
  occur. So at last it will cause host reset. It also get phy state 0
  before and after reset, the same issue occurs.

To solve it, use hisi_sas_phy_down() directly in rescan topology function.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:12 -04:00
Xiang Chen
a97fa58680 scsi: hisi_sas: add host reset interface for test
Add host reset interface to make it easier for testing the host reset
feature.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:30:11 -04:00
Martin K. Petersen
17631462cd Merge branch '5.1/scsi-fixes' into 5.2/merge
We have a few submissions for 5.2 that depend on fixes merged post
5.1-rc1. Merge the fixes branch into queue.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 21:27:23 -04:00
Bart Van Assche
4b3766ec0e scsi: target/iscsi: Make sure PDU processing continues if parsing a command fails
Currently the iSCSI target driver sends a CHECK CONDITION code back to the
initiator if the immediate data buffer is too large but it does not discard
that immediate data buffer. The result is that the iSCSI target driver
attempts to parse the immediate data itself as iSCSI PDUs and that all
further iSCSI communication fails. Fix this by receiving and discarding too
large immediate data buffers.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:06 -04:00
Bart Van Assche
2e39f1c906 scsi: target/iscsi: Make iscsit_map_iovec() more robust
Make the code for mapping an iovec more robust by checking the bounds of
the allocated iovec. This patch avoids that the following crash occurs if a
map attempt is made that exceeds the bounds of the iovec that is being
mapped:

BUG: unable to handle kernel NULL pointer dereference at 00000000
00000014
RIP: 0010:iscsit_map_iovec+0x120/0x190 [iscsi_target_mod]
Call Trace:
 iscsit_get_rx_pdu+0x8a2/0xe00 [iscsi_target_mod]
 iscsi_target_rx_thread+0x6e/0xa0 [iscsi_target_mod]
 kthread+0x109/0x140

Cc: Mike Christie <mchristi@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:06 -04:00
Bart Van Assche
0ca650c13b scsi: target/iscsi: Handle too large immediate data buffers correctly
Since target_alloc_sgl() and iscsit_allocate_iovecs() allocate buffer space
for se_cmd.data_length bytes and since that number can be smaller than the
iSCSI Expected Data Transfer Length (EDTL), ensure that the iSCSI target
driver does not attempt to receive more bytes than what fits in the receive
buffer. Always receive the full immediate data buffer such that the iSCSI
target driver does not attempt to parse immediate data as an iSCSI PDU.

Note: the current code base only calls iscsit_get_dataout() if the size of
the immediate data buffer does not exceed the buffer size derived from the
SCSI CDB. See also target_cmd_size_check().

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:06 -04:00
Bart Van Assche
96e8e26dd8 scsi: target/iscsi: Only send R2T if needed
If an initiator submits more immediate data than the size derived from the
SCSI CDB, do not send any R2T to the initiator. This scenario is triggered
by the libiscsi test ALL.iSCSIResiduals.WriteVerify16Residuals if the iSCSI
target driver is modified to discard too large immediate data buffers
instead of trying to parse these as an iSCSI PDU. This patch avoids that a
negative xfer_len value is passed to iscsit_add_r2t_to_list() if too large
immediate data buffers are handled correctly.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:06 -04:00
Bart Van Assche
b0055acaed scsi: target/iscsi: Detect conn_cmd_list corruption early
Certain behavior of an initiator can cause the target driver to send both a
reject and a SCSI response. If that happens two target_put_sess_cmd() calls
will occur without the command having been removed from conn_cmd_list. In
other words, conn_cmd_list will get corrupted once the freed memory is
reused. Although the Linux kernel can detect list corruption if list
debugging is enabled, in this case the context in which list corruption is
detected is not related to the context that caused list corruption.  Hence
add WARN_ON() statements that report the context that is causing list
corruption.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:06 -04:00
Bart Van Assche
be71530aa9 scsi: target/core: Make the XCOPY setup code easier to read by inlining two functions
The target_xcopy_setup_pt_port() and target_xcopy_init_pt_lun() functions
obfuscate what is really going on. Hence inline these two functions. This
patch does not change any functionality.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:06 -04:00
Bart Van Assche
0f57cf5ce7 scsi: target/core: Simplify LUN initialization in XCOPY implementation
Other than removing a few pr_debug() statements, this patch does not change
any functionality.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:05 -04:00
Bart Van Assche
82b76b4476 scsi: target/core: Remove a set-but-not-used member variable from the XCOPY implementation
This patch does not change any functionality.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:05 -04:00
Bart Van Assche
fae43461f8 scsi: target/core: Rework the SPC-2 reservation handling code
Instead of tracking the initiator that established an SPC-2 reservation,
track the session through which the SPC-2 reservation has been
established. This patch does not change any functionality.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:05 -04:00
Bart Van Assche
63f7479439 scsi: target/core: Fix a race condition in the LUN lookup code
The rcu_dereference(deve->se_lun) expression occurs twice in the LUN lookup
functions. Since these expressions are not serialized against deve->se_lun
assignments each of these expressions may yield a different result. Avoid
that the wrong LUN pointer is stored in se_cmd by reading deve->se_lun only
once.

Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Fixes: 29a05deebf ("target: Convert se_node_acl->device_list[] to RCU hlist") # v4.10
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:20:05 -04:00
Hannes Reinecke
a6a6d0589a scsi: scsi_transport_fc: nvme: display FC-NVMe port roles
Currently the FC-NVMe driver is leverating the SCSI FC transport class to
access the remote ports. Which means that all FC-NVMe remote ports will be
visible to the fc transport layer, but due to missing definitions the port
roles will always be 'unknown'.  This patch adds the missing definitions to
the fc transport class to that the port roles are correctly displayed.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Giridhar Malavali <gmalavali@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:09:34 -04:00
Colin Ian King
ea63e60f7a scsi: cxgbi: remove redundant __kfree_skb call on skb and free cst->atid
The error return path via label rel_resource checks for a non-null skb
before free'ing it.  However, skb is always null at this exit path, so the
null check and the free are redundant and can be removed.  Removing this
allows the original goto's to rel_resource to be cleaned up; the first can
be replaced by a return of -EINVAL, the second can be replaced by a more
appropriate -ENOMEM return and fix a memory leak by freeing csk->atid.

Addresses-Coverity: ("Logically Dead Code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-12 20:05:31 -04:00
Bart Van Assche
c8538b0b9e scsi: tcm_qla2xxx: Minimize #include directives
Only include those header files that are needed by the code in this source
file.

[mkp: include build fix from Bart for SPARC]

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-09 21:30:44 -04:00
Varun Prakash
5c2442fd78 scsi: csiostor: fix missing data copy in csio_scsi_err_handler()
If scsi cmd sglist is not suitable for DDP then csiostor driver uses
preallocated buffers for DDP, because of this data copy is required from
DDP buffer to scsi cmd sglist before calling ->scsi_done().

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:18:35 -04:00
Bart Van Assche
59c209a689 scsi: qla2xxx: Unregister resources in the opposite order of the registration order
Make sure that resources are only unregistered after the users of these
resources have been unregistered. Only unregister the character device if
registration of it succeeded.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
c794d24ec9 scsi: qla2xxx: Unregister chrdev if module initialization fails
If module initialization fails after the character device has been
registered, unregister the character device. Additionally, avoid
duplicating error path code.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Fixes: 6a03b4cd78 ("[SCSI] qla2xxx: Add char device to increase driver use count") # v2.6.35.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
2c26348c4d scsi: qla2xxx: Use get/put_unaligned where appropriate
This patch makes the code easier to read but does not change any
functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
7b006b9755 scsi: qla2xxx: Make qla2x00_process_response_queue() easier to read
Make qla2x00_process_response_queue() easier to read by splitting this
function. This patch does not change any functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
6515ad717b scsi: qla2xxx: Reduce the number of forward declarations
Move the SCSI host template definition after the definition of the
functions that it references. Remove the forward declarations that became
unnecessary by that change. This patch does not change any functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
b3ede8ea78 scsi: qla2xxx: Declare local symbols static
This patch avoids that sparse complains that a declaration is missing.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
b0a1c5b5c3 scsi: qla2xxx: Use ARRAY_SIZE() in the definition of QLA_LAST_SPEED
Make the code easier to read by avoiding to use a hard-coded constant. This
patch does not change any functionality.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
abe5706dcf scsi: qla2xxx: Remove a comment that refers to the SCSI host lock
Since qla2xxx_queuecommand() no longer takes the SCSI host lock, remove a
comment that refers to the host lock.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
c02ee1e5a9 scsi: qla2xxx: Change a stack variable into a static const variable
Make qla2x00_get_host_fabric_name() slightly faster by changing a stack
array into a static array. Declare that array const now that the
wwn_to_u64() argument pointer has been declared const.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Bart Van Assche
5585cbddce scsi: scsi_transport_fc: Declare wwn_to_u64() argument const
Since the wwn_to_u64() function does not change its input, make its
argument const.

Cc: James Smart <james.smart@broadcom.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 22:16:34 -04:00
Colin Ian King
ef19af9c28 scsi: qla2xxx: fix spelling mistake "alredy" -> "already"
There is a spelling mistake in a ql_log message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 21:46:02 -04:00
James Smart
1a61e5486a scsi: lpfc: add support for posting FC events on FPIN reception
This patch adds support to recognize FPIN ELS's that are received.  When
one is received, the fc transport will be called to handle the the FPIN.

Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 21:29:16 -04:00
James Smart
c39e0af64b scsi: scsi_transport_fc: Add FPIN fc event codes
Add a new event type - an FPIN event.

Add a new routine, fc_host_fpin_rcv(), that lldd's call when an FPIN is
received. The routine processes the fpin payload.  For now, the routine
only logs an FPIN event.

Signed-off-by: Muneendra <muneendra.kumar@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 21:29:16 -04:00
James Smart
2b1be55819 scsi: scsi_transport_fc: refactor event posting routines
There are two routines generating transport events that do the same thing
with only a couple of values set differently.

Refactor so there's a single routine doing the netlink operations to send
the event. All the differences are passed as arguments. Export the symbol
so the generic routine can be called by llds.

Modify the existing two event routines to use the helper.

Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 21:29:16 -04:00
James Smart
a7dff3ad47 scsi: fc: add FPIN ELS definition
T11 has introduced a new Fabric Notifications mechanism whereby the fabric
can notify a port of events occurring in the fabric.  The notifications are
given by the FPIN ELS.

Add the FPIN ELS definitions to the kernel.

Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 21:29:16 -04:00
Bart Van Assche
d964b3e534 scsi: lpfc: Fix a recently introduced compiler warning
This patch avoids that the following compiler warning is reported with
CONFIG_NVME_FC=n:

drivers/scsi/lpfc/lpfc_nvme.c:2140:1: warning: 'lpfc_nvme_lport_unreg_wait' defined but not used [-Wunused-function]
 lpfc_nvme_lport_unreg_wait(struct lpfc_vport *vport,
 ^~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: 3999df75bc ("scsi: lpfc: Declare local functions static")
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-08 21:26:11 -04:00
YueHaibing
25ea6b19db scsi: qla2xxx: Remove useless set memory to zero use memset()
The memory return by kzalloc() has already be set to zero, so remove
useless memset(0).

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-03 23:46:00 -04:00
Gustavo A. R. Silva
c2b9975080 scsi: mptscsih: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warnings:

drivers/message/fusion/mptscsih.c: In function  mptscsih_io_done :
drivers/message/fusion/mptscsih.c:741:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if ( ioc->bus_type == SAS ) {
       ^
drivers/message/fusion/mptscsih.c:790:3: note: here
   case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* 0x0048 */
   ^~~~
drivers/message/fusion/mptscsih.c:884:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
    scsi_set_resid(sc, 0);
    ^~~~~~~~~~~~~~~~~~~~~
drivers/message/fusion/mptscsih.c:885:3: note: here
   case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR: /* 0x0040 */
   ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-03 23:45:59 -04:00