Commit graph

17231 commits

Author SHA1 Message Date
Rob Herring
4b66810303 scsi: sun_esp: Use of_node_name_eq for node name comparisons
Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:56:06 -05:00
Thomas Meyer
75c1d48a33 scsi: qla2xxx: NULL check before some freeing functions is not needed
NULL check before some freeing functions is not needed.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:47:06 -05:00
Thomas Meyer
f3e46ac47e scsi: qedf: NULL check before some freeing functions is not needed
NULL check before some freeing functions is not needed.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:46:46 -05:00
Thomas Meyer
19c0507252 scsi: megaraid_sas: NULL check before some freeing functions is not needed
NULL check before some freeing functions is not needed.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:46:22 -05:00
Bart Van Assche
c4e521b654 scsi: qla2xxx: Split the __qla2x00_abort_all_cmds() function
Nesting in __qla2x00_abort_all_cmds() is way too deep. Reduce the nesting
level by introducing a helper function. This patch does not change any
functionality.

Reviewed-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:39:09 -05:00
Varun Prakash
14e9a890ec scsi: csiostor: remove flush_scheduled_work()
flush_scheduled_work() is not required as csio_hw_exit_workers() calls
cancel_work_sync() for hw->evtq_work.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:38:25 -05:00
Gustavo A. R. Silva
1ff2d8c43b scsi: BusLogic: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1056537 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Khalid Aziz <khalid@gonehiking.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:35:16 -05:00
Avri Altman
09a5a24ff3 scsi: ufs: Remove redundant sense size definition
By spec, the ufs sense data is 18 bytes long.

Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:33:25 -05:00
Sabyasachi Gupta
7250d12d73 scsi: snic: Use vzalloc
Replaced vmalloc + memset with vzalloc

Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@gmail.com>
Acked-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:30:32 -05:00
Sabyasachi Gupta
e3f230c066 scsi: fnic: Use vzalloc
Replaced vmalloc + memset with vzalloc

Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@gmail.com>
Acked-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:28:37 -05:00
Gustavo A. R. Silva
9167f0dcc5 scsi: xen-scsifront: mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that, in this particular case, I replaced "Missed the backend's
Closing state -- fallthrough" with "fall through - Missed the backend's
Closing state", which contains the "fall through" annotation at the
beginnig of the code comment, which is what GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Gustavo A. R. Silva
74e716f2a9 scsi: megaraid_sas_fusion: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that, in this particular case, I replaced "Fall thru" with a "Fall
through" annotation and added a dash as a token in order to separate the
"Fall through" annotation from the rest of the comment on the same line,
which is what GCC is expecting to find.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Gustavo A. R. Silva
8d07f7d000 scsi: megaraid: megaraid_sas_base: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Gustavo A. R. Silva
76df1da36c scsi: libfc: fc_rport: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Gustavo A. R. Silva
5dfdb08935 scsi: hpsa: mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Addresses-Coverity-ID: 1195463 ("Missing break in switch")
Addresses-Coverity-ID: 1195464 ("Missing break in switch")
Addresses-Coverity-ID: 1195465 ("Missing break in switch")
Addresses-Coverity-ID: 1195466 ("Missing break in switch")
Addresses-Coverity-ID: 1357338 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Gustavo A. R. Silva
c121c57a45 scsi: aacraid: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Gustavo A. R. Silva
8d4d5b346c scsi: aacraid: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Also, a break statement is properly aligned.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Bart Van Assche
8837aa8bc0 scsi: qla2xxx: Introduce a switch/case statement in qlt_xmit_tm_rsp()
This patch improves code readability but does not change any functionality.

Cc: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:47:30 -05:00
Colin Ian King
8700bc76f1 scsi: mpt3sas: fix spelling mistake "manufaucturing" -> "manufacturing"
There is a spelling mistake in some description text, fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:37:38 -05:00
Tomas Winkler
30eb2e4cd5 scsi: ufs: add fall through annotation
Add /* fallthrough */ annotation, to eliminate compilation warning:
warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 21:34:44 -05:00
Nilesh Javali
037bc0d434 scsi: qedi: Update driver version to 8.33.0.21
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Manish Rangankar
9632a6b4b7 scsi: qedi: Move LL2 producer index processing in BH.
1. Removed logic to update HW producer index in interrupt context.

2. Update HW producer index after UIO ring and buffer gets initialized.

Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Nilesh Javali
dcceeeb71f scsi: qedi: add module param to set ping packet size
Default packet size is 0x400. For jumbo packets set to 0x2400.

Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Manish Rangankar
cdd3ff87f1 scsi: qedi: Add packet filter in light L2 Rx path.
Add packet filter to avoid unnecessary packet processing in iscsiuio.

Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Manish Rangankar
d5632b11f0 scsi: qedi: Check for session online before getting iSCSI TLV data.
The kernel panic was observed after switch side perturbation,

BUG: unable to handle kernel NULL pointer dereference at (null)
     IP: [<ffffffff8132b5a0>] strcmp+0x20/0x40
     PGD 0 Oops: 0000 [#1] SMP
CPU: 8 PID: 647 Comm: kworker/8:1 Tainted: G        W  OE  ------------   3.10.0-693.el7.x86_64 #1
Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 06/20/2018
Workqueue: slowpath-13:00. qed_slowpath_task [qed]
task: ffff880429eb8fd0 ti: ffff880429190000 task.ti: ffff880429190000
RIP: 0010:[<ffffffff8132b5a0>]  [<ffffffff8132b5a0>] strcmp+0x20/0x40
RSP: 0018:ffff880429193c68  EFLAGS: 00010202
RAX: 000000000000000a RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff88042bda7a41
RBP: ffff880429193c68 R08: 000000000000ffff R09: 000000000000ffff
R10: 0000000000000007 R11: ffff88042b3af338 R12: ffff880420b007a0
R13: ffff88081aa56af8 R14: 0000000000000001 R15: ffff88081aa50410
FS:  0000000000000000(0000) GS:ffff88042fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000019f2000 CR4: 00000000003407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
ffff880429193d20 ffffffffc02a0c90 ffffc90004b32000 ffff8803fd3ec600
ffff88042bda7800 ffff88042bda7a00 ffff88042bda7840 ffff88042bda7a40
0000000129193d10 2e3836312e323931 ff000a342e363232 ffffffffc01ad99d
Call Trace:
[<ffffffffc02a0c90>] qedi_get_protocol_tlv_data+0x270/0x470 [qedi]
[<ffffffffc01ad99d>] ? qed_mfw_process_tlv_req+0x24d/0xbf0 [qed]
[<ffffffffc01653ae>] qed_mfw_fill_tlv_data+0x5e/0xd0 [qed]
[<ffffffffc01ad9b9>] qed_mfw_process_tlv_req+0x269/0xbf0 [qed]

Fix kernel NULL pointer deref by checking for session is online before
getting iSCSI TLV data.

Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Nilesh Javali
1a291bce5e scsi: qedi: Allocate IRQs based on msix_cnt
The driver load on some systems failed with error,
[0004:01:00.5]:[qedi_request_msix_irq:2524]:8: request_irq failed.

Allocate the IRQs based on MSIX count obtained from qed module instead of
number of queues.

Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Nilesh Javali
fa97c51109 scsi: qedi: Replace PAGE_SIZE with QEDI_PAGE_SIZE
Use QEDI_PAGE_SIZE for enablement of module on systems with 64K page size.

Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Nilesh Javali
f853053da9 scsi: qedi: Fix spelling mistake "OUSTANDING" -> "OUTSTANDING"
Fix trivial spelling mistake within macro definition.

Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:47 -05:00
Nilesh Javali
3fb5a21fd0 scsi: qedi: Cleanup redundant QEDI_PAGE_SIZE macro definition
Remove redundant macro definition.

Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 20:51:46 -05:00
David Disseldorp
59a206b449 scsi: target: replace fabric_ops.name with fabric_alias
iscsi_target_mod is the only LIO fabric where fabric_ops.name differs from
the fabric_ops.fabric_name string.  fabric_ops.name is used when matching
target/$fabric ConfigFS create paths, so rename it .fabric_alias and
fallback to target/$fabric vs .fabric_name comparison if .fabric_alias
isn't initialised.  iscsi_target_mod is the only fabric module to set
.fabric_alias . All other fabric modules rely on .fabric_name matching and
can drop the duplicate string.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 18:50:59 -05:00
David Disseldorp
30c7ca9350 scsi: target: drop unnecessary get_fabric_name() accessor from fabric_ops
All fabrics return a const string. In all cases *except* iSCSI the
get_fabric_name() string matches fabric_ops.name.

Both fabric_ops.get_fabric_name() and fabric_ops.name are user-facing, with
the former being used for PR/ALUA state and the latter for ConfigFS
(config/target/$name), so we unfortunately need to keep both strings around
for now.  Replace the useless .get_fabric_name() accessor function with a
const string fabric_name member variable.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-28 18:50:58 -05:00
Sabyasachi Gupta
359d0ac1e8 scsi: lpfc: Use dma_zalloc_coherent
Replaced dma_alloc_coherent + memset with dma_zalloc_coherent.

Signed-off-by: Sabyasachi Gupta <sabyasachi.linux@gmail.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:31:22 -05:00
YueHaibing
9959376c1b scsi: bnx2i: remove set but not used variable 'cid_num'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/bnx2i/bnx2i_hwi.c: In function 'bnx2i_process_ofld_cmpl':
drivers/scsi/bnx2i/bnx2i_hwi.c:2430:6: warning:
 variable 'cid_num' set but not used [-Wunused-but-set-variable]

It never used since commit
  cf4e636385 ("[SCSI] bnx2i: Add bnx2i iSCSI driver.")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:26:14 -05:00
Christoph Hellwig
1794ef2b15 scsi: aha1542: convert to DMA mapping API
aha1542 is one of the last users of the legacy isa_*_to_bus APIs, which
also isn't portable enough.  Convert it to the proper DMA mapping API.

Thanks to Ondrej Zary for testing and finding and fixing a crucial bug.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:21:42 -05:00
Shivasharan S
469f72ddc6 scsi: megaraid_sas: Add support for MegaRAID Aero controllers
This patch adds support for MegaRAID Aero controller PCI IDs.  Print a
message when a configurable secure type controller is encountered.

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:19:37 -05:00
Sreekanth Reddy
1c7a94e4aa scsi: mpt3sas: Display message on Configurable secure HBA
Display following warning message only upon detection of configurable
secure type controllers.

"HBA is in Configurable Secure mode"

[mkp: typos]

Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:15:29 -05:00
Yue Haibing
6920e6a255 scsi: libfc: Remove set but not used variable 'disc'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/libfc/fc_rport.c: In function 'fc_rport_recv_flogi_req':
drivers/scsi/libfc/fc_rport.c:866:18: warning:
 variable 'disc' set but not used [-Wunused-but-set-variable]

It no used any more after
commit baa6719f90 ("libfc: Update rport reference counting")

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:12:32 -05:00
Arnd Bergmann
8d0bb86e2c scsi: cxgb4i: fix thermal configuration dependencies
I fixed a bug by adding a dependency in the network driver, but that fix
caused a related bug in the SCSI driver:

WARNING: unmet direct dependencies detected for CHELSIO_T4
  Depends on [m]: NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_CHELSIO [=y] && PCI [=y] && (IPV6 [=y] || IPV6 [=y]=n) && (THERMAL [=m] || !THERMAL [=m])
  Selected by [y]:
  - SCSI_CXGB4_ISCSI [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && PCI [=y] && INET [=y] && (IPV6 [=y] || IPV6 [=y]=n)
drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.o: In function `cxgb4_thermal_init':
cxgb4_thermal.c:(.text+0x158): undefined reference to `thermal_zone_device_register'
drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.o: In function `cxgb4_thermal_remove':
cxgb4_thermal.c:(.text+0x1d8): undefined reference to `thermal_zone_device_unregister'
/git/arm-soc/Makefile:1042: recipe for target 'vmlinux' failed

The same dependency needs to be propagated here to make it work correctly
with CONFIG_THERMAL=m and SCSI_CXGB4_ISCSI=y. That change by itself causes
another problem with a circular dependency, as we use 'select NETDEVICES'.
This is something we really should not do anyway, as a driver symbol should
never select another major subsystem, so let's turn that into a 'depends
on'. I don't see any downsides of that, as NETDEVICES is only disabled in
rather obscure cases that are not relevant to the users of cxgb4i.

Fixes: e70a57fa59 ("cxgb4: fix thermal configuration dependencies")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:09:26 -05:00
Souptick Joarder
0e55892ea2 scsi: aic94xx: Use dma_pool_zalloc
Replaced dma_pool_alloc + memset with dma_pool_zalloc.

Signed-off-by: Brajeswar Ghosh <brajeswar.linux@gmail.com>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-21 22:02:40 -05:00
John Garry
200858bbb6 scsi: libsas: Remove pcidev reference
Not all host drivers are PCI drivers - like hisi_sas, which supports a
platform driver - so remove reference to "pcidev".

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:37:06 -05:00
John Garry
15ba7806c3 scsi: libsas: Drop SAS_DPRINTK() and revise logs levels
Like sas_printk() did previously, SAS_DPRINTK() offers little value now
that libsas logs already have the "sas" prefix through pr_fmt(fmt). So it
can be dropped.

However, after reviewing some logs in libsas, it is noticed that debug
level is too low in many instances.

So this change drops SAS_DPRINTK() and revises some logs to a more
appropriate level. However many stay at debug level, although some
are significantly promoted.

We add -DDEBUG for compilation so that we keep the debug messages by
default, as before.

All the pre-existing checkpatch errors for spanning messages across
multiple lines are also fixed.

Finally, all other references to printk() [apart from special formatting
in sas_ata.c] are removed and replaced with appropriate pr_xxx().

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:37:06 -05:00
John Garry
71a4a99231 scsi: libsas: Drop sas_printk()
The printk wrapper sas_printk() adds little value now that libsas logs
already have the "sas" prefix through pr_fmt(fmt), so just use pr_notice()
directly.

In addition, strings which span multiple lines are reunited.

Originally-from: Joe Perches <joe@perches.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:37:06 -05:00
John Garry
d188e5db9d scsi: libsas: Use pr_fmt(fmt)
In preparation for dropping the libsas printk wrappers, use pr_fmt(fmt)
declaration to add the framework log prefix - "sas".

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:37:05 -05:00
John Garry
1399846d4b scsi: libsas: Delete sas_dump.{c, h}
The code in these files is not longer referenced, so delete them.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:37:05 -05:00
Xiang Chen
15bc43f31a scsi: hisi_sas: change the time of SAS SSP connection
Currently the time of SAS SSP connection is 1ms, which means the link
connection will fail if no IO response after this period.

For some disks handling large IO (such as 512k), 1ms is not enough, so
change it to 5ms.

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>
2018-11-15 14:37:05 -05:00
Xiang Chen
745b684763 scsi: hisi_sas: Relocate some codes to avoid an unused check
In function hisi_sas_task_prep(), we check asd_sas_port, but in function
hisi_sas_task_exec(), we already refer to asd_sas_port by using function
dev_to_hisi_hba() implicitly. So to avoid this possible invalid
dereference, relocate the check to function hisi_sas_task_prep().

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>
2018-11-15 14:37:05 -05:00
Xiang Chen
37359798ec scsi: hisi_sas: Add support for interrupt coalescing for v3 hw
If INT_COAL_EN is enabled, configure time and count of interrupt
coalescing.  Then if CQ collects count of CQ entries in time, it will
report the interrupt. Or if CQ doesn't collect enough CQ entries in time,
it will report the interrupt at timeout.

As all the registers are not supported to be changed dynamically, we need
to config those register between disable and enable PHYs.

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>
2018-11-15 14:37:05 -05:00
Xiang Chen
488cf558e3 scsi: hisi_sas: Add support for interrupt converge for v3 hw
If CQ_INT_CONVERGE_EN is enabled, the interrupts of all the 16 CQ queues
will be reported by CQ0.

So we need to change the process of CQ tasklet for this situation.

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>
2018-11-15 14:37:05 -05:00
Xiang Chen
c3566f9a61 scsi: hisi_sas: Create separate host attributes per HBA
Currently all the three HBA (v1/v2/v3 HW) share the same host attributes.

To support each HBA having separate attributes in future, create per-HBA
attributes.

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>
2018-11-15 14:37:05 -05:00
Christoph Hellwig
236bd823fb scsi: wd719x: always use generic DMA API
The wd719x driver currently uses a mix of the legacy PCI DMA and the
generic DMA APIs.  Switch it over to the generic DMA API entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-11-15 14:27:08 -05:00