This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
xfcp, hisi_sas, cxlflash, qla2xxx. In the absence of Nic, we're also
taking target updates which are mostly minor except for the tcmu
refactor. The only real core change to worry about is the removal of
high page bouncing (in sas, storvsc and iscsi). This has been well
tested and no problems have shown up so far.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
xfcp, hisi_sas, cxlflash, qla2xxx.
In the absence of Nic, we're also taking target updates which are
mostly minor except for the tcmu refactor.
The only real core change to worry about is the removal of high page
bouncing (in sas, storvsc and iscsi). This has been well tested and no
problems have shown up so far"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits)
scsi: lpfc: update driver version to 12.0.0.4
scsi: lpfc: Fix port initialization failure.
scsi: lpfc: Fix 16gb hbas failing cq create.
scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc
scsi: lpfc: correct oversubscription of nvme io requests for an adapter
scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx)
scsi: hisi_sas: Mark PHY as in reset for nexus reset
scsi: hisi_sas: Fix return value when get_free_slot() failed
scsi: hisi_sas: Terminate STP reject quickly for v2 hw
scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command
scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot
scsi: hisi_sas: Try wait commands before before controller reset
scsi: hisi_sas: Init disks after controller reset
scsi: hisi_sas: Create a scsi_host_template per HW module
scsi: hisi_sas: Reset disks when discovered
scsi: hisi_sas: Add LED feature for v3 hw
scsi: hisi_sas: Change common allocation mode of device id
scsi: hisi_sas: change slot index allocation mode
scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate()
scsi: hisi_sas: fix a typo in hisi_sas_task_prep()
...
This patch adds callbacks for providing the ethernet protocol driver TLVs.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
During an uplink toggle test all error handling is done via timeout and
firmware error conditions which can occur concurrently:
- SCSI layer timeouts
- Error detect CQEs
- Firmware detected underruns
- ABTS timeouts
All these concurrent events require more defensive checks in the driver
including:
- Check both internally and externally generated aborts to make sure the
xid is not already been aborted in another context or in cleanup.
- Check back pointers in qedf_cmd_timeout to verify the context of the
io_req, fcport and qedf_ctx
- Check rport state in host reset handler to not reset the whole host
if the rport is already uploaded or in the process of relogin
- Check to state for an fcport before initiating a middle path ELS
request
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Similar to what we do when we remove a PCI function, set the
QEDF_UNLOADING flag to prevent any requests from being queued while a
vport is being deleted. This prevents any requests from getting stuck
in limbo when the vport is unloaded or deleted.
Fixes the crash:
PID: 106676 TASK: ffff9a436aa90000 CPU: 12 COMMAND: "multipathd"
#0 [ffff9a43567d3550] machine_kexec+522 at ffffffffaca60b2a
#1 [ffff9a43567d35b0] __crash_kexec+114 at ffffffffacb13512
#2 [ffff9a43567d3680] crash_kexec+48 at ffffffffacb13600
#3 [ffff9a43567d3698] oops_end+168 at ffffffffad117768
#4 [ffff9a43567d36c0] no_context+645 at ffffffffad106f52
#5 [ffff9a43567d3710] __bad_area_nosemaphore+116 at ffffffffad106fe9
#6 [ffff9a43567d3760] bad_area+70 at ffffffffad107379
#7 [ffff9a43567d3788] __do_page_fault+1247 at ffffffffad11a8cf
#8 [ffff9a43567d37f0] do_page_fault+53 at ffffffffad11a915
#9 [ffff9a43567d3820] page_fault+40 at ffffffffad116768
[exception RIP: qedf_init_task+61]
RIP: ffffffffc0e13c2d RSP: ffff9a43567d38d0 RFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffbe920472c738 RCX: ffff9a434fa0e3e8
RDX: ffff9a434f695280 RSI: ffffbe920472c738 RDI: ffff9a43aa359c80
RBP: ffff9a43567d3950 R8: 0000000000000c15 R9: ffff9a3fb09b9880
R10: ffff9a434fa0e3e8 R11: ffff9a43567d35ce R12: 0000000000000000
R13: ffff9a434f695280 R14: ffff9a43aa359c80 R15: ffff9a3fb9e005c0
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There are a couple of kernel cases when we restart a remote port due to
ABTS timeout that we need to handle:
1. Flush any outstanding ABTS requests when flushing I/Os so that we do
not hold up the eh_abort handler indefinitely causing process hangs.
2. Check if we are currently uploading a connection before issuing an
ABTS.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Get all firmware debug data instead of just a grc dump.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
PROBLEM DESCRIPTION:
According to the logs, STAG was changing and it was triggering soft
reset. In soft reset we used to virtual link down and up and also we
were disabling DCBx flag. Since this was virtual link flap, DCBx never
used to converge again.
SOLUTION:
Code change is to remove disabling DCBx flag from soft reset.
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Helps to corroborate which requests we can't get reference on and if
it's real bug or not.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When an RRQ request times out the reference is not getting decremented
correctly as there are still ELS commands leftover when we flush any
pending I/Os during offload:
[ 281.788553] [0000:21:00.3]:[qedf_cmd_timeout:58]:4: ELS timeout, xid=0x96a.
...
[ 281.788553] [0000:21:00.3]:[qedf_cmd_timeout:58]:4: ELS timeout, xid=0x96a.
[ 281.788772] [0000:21:00.3]:[qedf_rrq_compl:182]:4: Entered.
[ 281.788774] [0000:21:00.3]:[qedf_rrq_compl:200]:4: rrq_compl: orig io = ffffc90004c556f8, orig xid = 0x81b, rrq_xid = 0x96a, refcount=1
...
[ 331.448032] [0000:21:00.3]:[qedf_flush_els_req:1512]:4: Flushing ELS request xid=0x96a refcount=2.
The fix is to call kref_put on the rrq_req in case of timeout as the
timeout handler will call rrq_compl directly vs. a normal completion
where it is call from els_compl.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We currently hard code the priority in the 8021q tag to 3 for FCoE
traffic. The vast majority of the time this is fine but if the priority
is something else besides 3, any VLAN ID comparison either in the
non-offload path or offload path will fail and cause dropped frames
where none are expected.
Change the behavior so that the driver default is 3 if we do not get any
DCBX convergence.
If DCBX does converge, then set the FIP/FCoE priority in the following
manner:
1. If the qedf_default_prio modparam is set use that
2. If the DCBX FCoE priority is not in range (0..7) use 3
3. Use the DCBX FCoE priority we get in the driver's DCBX handler
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This module parameter is to work around cases where we do not receive
the DCBX handler notification from qed but discovery is still possible
if we send out a FIP VLAN request irregardless of the DCBX state.
[mkp: zeroday warning]
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Some configurations need more than 30 seconds to respond to a FIP VLAN
request so increase the default to 60 seconds.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch adds driver changes for supporting the Unified Fabric Port
(UFP). This is a new paritioning mode wherein MFW provides the set of
parameters to be used by the device such as traffic class, outer-vlan
tag value, priority type etc. Drivers receives this info via notifications
from mfw and configures the hardware accordingly.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-8 warns during link-time optimization that the strncpy() call passes
the size of the source buffer rather than the destination:
drivers/scsi/qedf/qedf_dbg.c: In function 'qedf_uevent_emit':
include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
This changes it to strscpy() with the correct length, guaranteeing a
properly nul-terminated string of the right size.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The prototype for qedf_dbg_fops/qedf_debugfs_ops doesn't match the definition,
which causes the final link to fail with link-time optimizations:
drivers/scsi/qedf/qedf_main.c:34: error: type of 'qedf_dbg_fops' does not match original declaration [-Werror=lto-type-mismatch]
extern struct file_operations qedf_dbg_fops;
drivers/scsi/qedf/qedf_debugfs.c:443: note: 'qedf_dbg_fops' was previously declared here
const struct file_operations qedf_dbg_fops[] = {
drivers/scsi/qedf/qedf_main.c:33: error: type of 'qedf_debugfs_ops' does not match original declaration [-Werror=lto-type-mismatch]
extern struct qedf_debugfs_ops qedf_debugfs_ops;
drivers/scsi/qedf/qedf_debugfs.c:102: note: 'qedf_debugfs_ops' was previously declared here
struct qedf_debugfs_ops qedf_debugfs_ops[] = {
This corrects the prototype and moves it into a shared header file where it
belongs. The file operations can also be marked 'const' like the
qedf_debugfs_ops.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pointer fcport is initialized with a value that is never read, it is
re-assigned a new value later on, hence the initialization is redundant
and can be removed.
Cleans up clang warning:
drivers/scsi/qedf/qedf_io.c:920:21: warning: Value stored to 'fcport'
during its initialization is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull networking updates from David Miller:
1) Significantly shrink the core networking routing structures. Result
of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf
2) Add netdevsim driver for testing various offloads, from Jakub
Kicinski.
3) Support cross-chip FDB operations in DSA, from Vivien Didelot.
4) Add a 2nd listener hash table for TCP, similar to what was done for
UDP. From Martin KaFai Lau.
5) Add eBPF based queue selection to tun, from Jason Wang.
6) Lockless qdisc support, from John Fastabend.
7) SCTP stream interleave support, from Xin Long.
8) Smoother TCP receive autotuning, from Eric Dumazet.
9) Lots of erspan tunneling enhancements, from William Tu.
10) Add true function call support to BPF, from Alexei Starovoitov.
11) Add explicit support for GRO HW offloading, from Michael Chan.
12) Support extack generation in more netlink subsystems. From Alexander
Aring, Quentin Monnet, and Jakub Kicinski.
13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
Russell King.
14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.
15) Many improvements and simplifications to the NFP driver bpf JIT,
from Jakub Kicinski.
16) Support for ipv6 non-equal cost multipath routing, from Ido
Schimmel.
17) Add resource abstration to devlink, from Arkadi Sharshevsky.
18) Packet scheduler classifier shared filter block support, from Jiri
Pirko.
19) Avoid locking in act_csum, from Davide Caratti.
20) devinet_ioctl() simplifications from Al viro.
21) More TCP bpf improvements from Lawrence Brakmo.
22) Add support for onlink ipv6 route flag, similar to ipv4, from David
Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
tls: Add support for encryption using async offload accelerator
ip6mr: fix stale iterator
net/sched: kconfig: Remove blank help texts
openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
tcp_nv: fix potential integer overflow in tcpnv_acked
r8169: fix RTL8168EP take too long to complete driver initialization.
qmi_wwan: Add support for Quectel EP06
rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
ipmr: Fix ptrdiff_t print formatting
ibmvnic: Wait for device response when changing MAC
qlcnic: fix deadlock bug
tcp: release sk_frag.page in tcp_disconnect
ipv4: Get the address of interface correctly.
net_sched: gen_estimator: fix lockdep splat
net: macb: Handle HRESP error
net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
ipv6: addrconf: break critical section in addrconf_verify_rtnl()
ipv6: change route cache aging logic
i40e/i40evf: Update DESC_NEEDED value to reflect larger value
bnxt_en: cleanup DIM work on device shutdown
...
Fix to return error code -ENOMEM from the error handling case instead of
0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Advance the qed* drivers to use firmware 8.33.1.0:
Modify core driver (qed) to utilize the new FW and initialize the device
with it. This is the lion's share of the patch, and includes changes to FW
interface files, device initialization flows, FW interaction flows, and
debug collection flows.
Modify Ethernet driver (qede) to make use of new FW in fastpath.
Modify RoCE/iWARP driver (qedr) to make use of new FW in fastpath.
Modify FCoE driver (qedf) to make use of new FW in fastpath.
Modify iSCSI driver (qedi) to make use of new FW in fastpath.
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Yuval Bason <Yuval.Bason@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Manish Chopra <Manish.Chopra@cavium.com>
Signed-off-by: Chad Dupuis <Chad.Dupuis@cavium.com>
Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch renames defines and structures in the FW HSI files to allow a
distinction between different types of HW.
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Chad Dupuis <Chad.Dupuis@cavium.com>
Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
qedf has a host reset handler, but as the bus reset handler is a stub
always returning SUCCESS the host reset is never invoked. So drop the
bus reset handler.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Because we were passing 'qedf_debug' instead of 'debug' to the
MODULE_PARM_DESC() macro, modinfo listed the parameter name as 'qedf_debug'
instead of it's proper name 'debug'. Correct the parameter name.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is no ordering required for the various workqueues the driver uses
so they can be converted to regular workqueues.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently in the driver the qedf_ctx attribute vlan_hw_insert is used to
which whether to insert a VLAN tag in FIP frames (except for FIP VLAN
request which is explicitly sent out untagged at least from the driver's
point of view).
When we receive a FIP VLAN response, we set qedf->vlan_hw_insert to 0 which
makes the qedf_fip_send function insert the VLAN. However when we exhaust
our FIP VLAN retries, we do not set qedf->vlan_hw_insert to 0 which means
that the driver will not tag the FIP frame with the correct VLAN ID. The
result that was observed on the wire is that some entity either in the LL2
or L2 firmware is adding a NULL VLAN tag which can cause FIP solicitation
to fail.
The offload FCoE frame function, qedf_xmit, does not use the vlan_hw_insert
attribute to decide whether to tag frames with the FIP/FCoE VLAN. Instead
it unilaterially tags the offload frames with the VLAN ID stored in
qedf->vlan_id. This is the correct behavior so the driver can guarantee
that non-offload FIP frames go out with the correct VLAN ID.
Also use the Linux network layer helpers instead of doing the VLAN insert
manually.
Also fix setting the fallback VLAN so that it used the module parameter and
is not hardcoded to 1002 (though 1002 is the default).
[mkp: fixed typo]
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently in the driver we've been using the fc_fcoe_set_mac() function to
set the source MAC for FCoE traffic. This works well in most cases as it
uses the spec. default FCF-MAC. However, if the administrator changes the
FCF-MAC switch, then any FCoE traffic we send will be dropped by the
switch.
Instead we should check the granted MAC from the FLOGI payload and use that
address if it is present. Otherwise, fall back to using the the default
FCF-MAC and the fabric ID of the port as the FCoE MAC address.
Once this address is known we need to set it when doing non-offload
traffic, offload traffic and setting the data_src_address libfcoe uses for
FIP keep alive messages.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If dev_info.wwpn and dev_info.wwnn are set by qed use these values to set
the WWNs of the port. Otherwise fall back to the old method using
fcoe_wwn_from_mac().
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
At the beginning of 'qedf_srr_compl()' and of 'qedf_rec_compl()', we
check if 'orig_io_req' is NULL. If this happens, a NULL pointer
dereference will occur in the error handling path.
Fix it by adding an additional label in the error handling path in order
to avoid this NULL pointer dereference.
[mkp: typo]
Fixes: 61d8658b4a ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
FCOE offloading failed with:
[qed_sp_fcoe_func_start:150(sp-0-3b:00.02)]Cannot satisfy CQ amount. CQs
requested 8, CQs available 6. Aborting function start
[qed_fcoe_start:821()]Failed to start fcoe
[__qedf_probe:3041]:6: Cannot start FCoE function.
The reason is a newly introduced check in the qed main part. This change
also provides the information about how many CQs are available, so we
simply limit the number of requested CQs..
Fixes: 3c5da94278 ("qed: Share additional information with qedf")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Trivial fix to spelling mistake in QEDF_INFO message and remove
duplicated "since" (thanks to Tyrel Datwyler for spotting the latter
issue).
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is mostly updates of the usual suspects: lpfc, qla2xxx, bnx2fc,
qedf, hpsa, hisi_sas, smartpqi, cxlflash, aacraid, csiostor along with
a host of minor and miscellaneous changes.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly updates of the usual suspects: lpfc, qla2xxx, bnx2fc,
qedf, hpsa, hisi_sas, smartpqi, cxlflash, aacraid, csiostor along with
a host of minor and miscellaneous changes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (276 commits)
qla2xxx: Fix NVMe entry_type for iocb packet on BE system
scsi: qla2xxx: avoid unused-function warning
scsi: snic: fix a couple of spelling mistakes/typos
scsi: qla2xxx: fix a bunch of typos and spelling mistakes
scsi: lpfc: don't double count abort errors
scsi: lpfc: spin_lock_irq() is not nestable
scsi: hisi_sas: optimise DMA slot memory
scsi: ibmvfc: constify dev_pm_ops structures.
scsi: ibmvscsi: constify dev_pm_ops structures.
scsi: cxlflash: Update debug prints in reset handlers
scsi: cxlflash: Update send_tmf() parameters
scsi: cxlflash: Avoid double free of character device
scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.
scsi: ufs: flush eh_work when eh_work scheduled.
scsi: qla2xxx: Protect access to qpair members with qpair->qp_lock
scsi: sun_esp: fix device reference leaks
scsi: fnic: changing queue command to return result DID_IMM_RETRY when rport is init
scsi: fnic: correct speed display and add support for 25,40 and 100G
scsi: fnic: added timestamp reporting in fnic debug stats
...
It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.
Make these functions return void * and remove all the casts across
the tree, adding a (u8 *) cast only where the unsigned char pointer
was used directly, all done with the following spatch:
@@
expression SKB, LEN;
typedef u8;
identifier fn = { skb_push, __skb_push, skb_push_rcsum };
@@
- *(fn(SKB, LEN))
+ *(u8 *)fn(SKB, LEN)
@@
expression E, SKB, LEN;
identifier fn = { skb_push, __skb_push, skb_push_rcsum };
type T;
@@
- E = ((T *)(fn(SKB, LEN)))
+ E = fn(SKB, LEN)
@@
expression SKB, LEN;
identifier fn = { skb_push, __skb_push, skb_push_rcsum };
@@
- fn(SKB, LEN)[0]
+ *(u8 *)fn(SKB, LEN)
Note that the last part there converts from push(...)[0] to the
more idiomatic *(u8 *)push(...).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.
Make these functions return void * and remove all the casts across
the tree, adding a (u8 *) cast only where the unsigned char pointer
was used directly, all done with the following spatch:
@@
expression SKB, LEN;
typedef u8;
identifier fn = {
skb_pull,
__skb_pull,
skb_pull_inline,
__pskb_pull_tail,
__pskb_pull,
pskb_pull
};
@@
- *(fn(SKB, LEN))
+ *(u8 *)fn(SKB, LEN)
@@
expression E, SKB, LEN;
identifier fn = {
skb_pull,
__skb_pull,
skb_pull_inline,
__pskb_pull_tail,
__pskb_pull,
pskb_pull
};
type T;
@@
- E = ((T *)(fn(SKB, LEN)))
+ E = fn(SKB, LEN)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.
Make these functions (skb_put, __skb_put and pskb_put) return void *
and remove all the casts across the tree, adding a (u8 *) cast only
where the unsigned char pointer was used directly, all done with the
following spatch:
@@
expression SKB, LEN;
typedef u8;
identifier fn = { skb_put, __skb_put };
@@
- *(fn(SKB, LEN))
+ *(u8 *)fn(SKB, LEN)
@@
expression E, SKB, LEN;
identifier fn = { skb_put, __skb_put };
type T;
@@
- E = ((T *)(fn(SKB, LEN)))
+ E = fn(SKB, LEN)
which actually doesn't cover pskb_put since there are only three
users overall.
A handful of stragglers were converted manually, notably a macro in
drivers/isdn/i4l/isdn_bsdcomp.c and, oddly enough, one of the many
instances in net/bluetooth/hci_sock.c. In the former file, I also
had to fix one whitespace problem spatch introduced.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge some quoted strings to improve readability and to save some lines
of code.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Replace some 'dma_alloc_coherent+memset' by some quivalent
'dma_zalloc_coherent' in order to reduce code verbosity
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
