Commit Graph

1799 Commits

Author SHA1 Message Date
Linus Torvalds c9c9735c46 SCSI misc on 20200814
This is the set of patches which arrived too late to stabilise in
 -next for the first pull.  It's really just an lpfc driver update and
 an assortment of minor fixes, all in drivers.  The only core update is
 to the zone block device driver, which isn't the one most people use.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "This is the set of patches which arrived too late to stabilise in
  -next for the first pull.

  It's really just an lpfc driver update and an assortment of minor
  fixes, all in drivers. The only core update is to the zone block
  device driver, which isn't the one most people use"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: lpfc: Update lpfc version to 12.8.0.3
  scsi: lpfc: Fix LUN loss after cable pull
  scsi: lpfc: Fix validation of bsg reply lengths
  scsi: lpfc: Fix retry of PRLI when status indicates its unsupported
  scsi: lpfc: Fix oops when unloading driver while running mds diags
  scsi: lpfc: Fix RSCN timeout due to incorrect gidft counter
  scsi: lpfc: Fix no message shown for lpfc_hdw_queue out of range value
  scsi: lpfc: Fix FCoE speed reporting
  scsi: lpfc: Add missing misc_deregister() for lpfc_init()
  scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport
  scsi: scsi_transport_sas: Add spaces around binary operator "|"
  scsi: sd_zbc: Improve zone revalidation
  scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
  scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del()
  scsi: target: Make iscsit_register_transport() return void
2020-08-14 16:01:59 -07:00
Linus Torvalds dfdf16ecfd SCSI misc on 20200806
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
 lpfc, hpsa, zfcp, scsi_debug) and minor bug fixes.  We also have a
 huge docbook fix update like most other subsystems and no major update
 to the core (the few non trivial updates are either minor fixes or
 removing an unused feature [scsi_sdb_cache]).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.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 consists of the usual driver updates (ufs, qla2xxx, tcmu, lpfc,
  hpsa, zfcp, scsi_debug) and minor bug fixes.

  We also have a huge docbook fix update like most other subsystems and
  no major update to the core (the few non trivial updates are either
  minor fixes or removing an unused feature [scsi_sdb_cache])"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits)
  scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences
  scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices
  scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM"
  scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged
  scsi: scsi_debug: Implement tur_ms_to_ready parameter
  scsi: scsi_debug: Fix request sense
  scsi: lpfc: Fix typo in comment for ULP
  scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
  scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
  scsi: hpsa: Correct ctrl queue depth
  scsi: target: tcmu: Make TMR notification optional
  scsi: target: tcmu: Implement tmr_notify callback
  scsi: target: tcmu: Fix and simplify timeout handling
  scsi: target: tcmu: Factor out new helper ring_insert_padding
  scsi: target: tcmu: Do not queue aborted commands
  scsi: target: tcmu: Use priv pointer in se_cmd
  scsi: target: Add tmr_notify backend function
  scsi: target: Modify core_tmr_abort_task()
  scsi: target: iscsi: Fix inconsistent debug message
  scsi: target: iscsi: Fix login error when receiving
  ...
2020-08-06 16:50:07 -07:00
Dick Kennedy 7e0e8be3a1 scsi: lpfc: Update lpfc version to 12.8.0.3
Update lpfc version to 12.8.0.3

Link: https://lore.kernel.org/r/20200803210229.23063-9-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy 00081c5ca4 scsi: lpfc: Fix LUN loss after cable pull
On devices that support FCP sequence error recovery, which attempts to
preserve the devices login across link bounce, adisc is used for device
validation. Turns out the device fc4 type is cleared as part of the link
bounce, but the ADISC handling doesn't restore the FC4 support as it
normally would with a PRLI. This caused situations where the device wasn't
reregistered with the transport thus scan logic and LUN discovery never
kicked in.

In the ADISC completion handling, reset the fc4 type so that transport port
reregistration occurs with the remote port.

Link: https://lore.kernel.org/r/20200803210229.23063-8-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy feb3cc57fb scsi: lpfc: Fix validation of bsg reply lengths
There are a couple of code areas which validate sufficient reply buffer
length, but the checks are using the request elements rather than the reply
elements.

Rework to validate using the reply structures.

Link: https://lore.kernel.org/r/20200803210229.23063-7-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy 678768da98 scsi: lpfc: Fix retry of PRLI when status indicates its unsupported
With port bounce/address swaps and timing between initiator GID queries vs
remote port FC4 support registrations, the driver may be in a situation
where it sends PRLIs for both FCP and NVME even though the target may not
support one of the protocols. In this case, the remote port will reject the
PRLI and usually indicate it does not support the request. However, the
driver currently ignores the status of the failure and immediately retries
the PRLI, which is pointless. In the case of this one remote port, the
reception of the PRLI retry caused it to decide to send a LOGO.  The LOGO
restarted the process and the same results happened. It made the remote
port undiscoverable to either protocol.

Add logic to detect the non-support status and not attempt the retry
of the PRLI.

Link: https://lore.kernel.org/r/20200803210229.23063-6-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy 24411fcd6f scsi: lpfc: Fix oops when unloading driver while running mds diags
While mds diagnostic tests are running, if the driver is requested to be
unloaded, oops or hangs are observed.  The driver doesn't terminate the
processing of diag frames when the unload is started. As such: oops may be
seen for __lpfc_sli_release_iocbq_s4 because ring memory is referenced that
was already freed; or hangs see in lpfc_nvme_wait_for_io_drain as ios no
longer complete.

If unloading, don't process diag frames. Just clean them up.

Link: https://lore.kernel.org/r/20200803210229.23063-5-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy 8ccd6926db scsi: lpfc: Fix RSCN timeout due to incorrect gidft counter
In configs with a large number of initiators in the same zone (>250), RSCN
timeouts are seen when creating or deleting vports:

   lpfc 0000:07:00.1: 5:(0):0231 RSCN timeout Data: x0 x3

During RSCN processing driver issues GID_FT command to nameserver. A
counter for number of simultaneous GID_FT commands is maintained (an
unsigned value). The counter is incremented when the GID_FT is issued.  If
the GID_FT command fails for some reason the driver retries the GID_FT from
the completion call back. But the counter was decremented before the retry
was issued.  When the second GID_FT completes, the callback again tries to
decrement the counter, possibly wrapping to a very large non-zero value,
which causes the RSCN cleanup code to not execute. Thus the RSCN timeout
failure.

Do not decrement the counter on a retry. Also add defensive checks to
ensure the counter is not decremented if already zero.

Link: https://lore.kernel.org/r/20200803210229.23063-4-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy 9e3e365a92 scsi: lpfc: Fix no message shown for lpfc_hdw_queue out of range value
If module parameters override the default configuration settings for
hardware queues or irqs, the driver was not notifying the change from
defaults.

Revise such that any changes will result in a kernel log message.

Link: https://lore.kernel.org/r/20200803210229.23063-3-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Dick Kennedy a1e4d3d8ae scsi: lpfc: Fix FCoE speed reporting
Current Link speed was shown as "unknown" in sysfs for FCoE ports. In this
scenario, the port was working in 20G speed, which happens to not be a
speed handled by the driver.

Add support for all possible link speeds that could get reported from
port_speed field in link state ACQE.

Additionally, as supported_speeds can't be manipulated via the FCoE driver
on a converged ethernet port (it must be managed by the nic function),
don't fill out the supported_speeds field for the fc host object in sysfs.

Revise debug logging to report Link speed mgmt valuess.

Link: https://lore.kernel.org/r/20200803210229.23063-2-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Jing Xiangfeng 1eaff53649 scsi: lpfc: Add missing misc_deregister() for lpfc_init()
lpfc_init() misses a call misc_deregister() in an error path. Add a label
'unregister' to fix it.

Link: https://lore.kernel.org/r/20200731065639.190646-1-jingxiangfeng@huawei.com
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:57 -04:00
Ewan D. Milne af6de8c60f scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport
We cannot wait on a completion object in the lpfc_nvme_targetport structure
in the _destroy_targetport() code path because the NVMe/fc transport will
free that structure immediately after the .targetport_delete() callback.
This results in a use-after-free, and a crash if slub_debug=FZPU is
enabled.

An earlier fix put put the completion on the stack, but commit 2a0fb340fc
("scsi: lpfc: Correct localport timeout duration error") subsequently
changed the code to reference the completion through a pointer in the
object rather than the local stack variable.  Fix this by using the stack
variable directly.

Link: https://lore.kernel.org/r/20200729231011.13240-1-emilne@redhat.com
Fixes: 2a0fb340fc ("scsi: lpfc: Correct localport timeout duration error")
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-04 20:56:56 -04:00
Ferruh Yigit 02e3e588f0 scsi: lpfc: Fix typo in comment for ULP
UPL -> ULP for "Upper Layer Protocol"

Link: https://lore.kernel.org/r/20200728145606.1601726-1-ferruh.yigit@intel.com
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-28 23:49:57 -04:00
Lee Jones 22f8c07741 scsi: lpfc: Add description for lpfc_release_rpi()'s 'ndlpl param
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_nportdisc.c:1079: warning: Function parameter or member 'ndlp' not described in 'lpfc_release_rpi'

Link: https://lore.kernel.org/r/20200723122446.1329773-20-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:04 -04:00
Lee Jones 012d019f5a scsi: lpfc: Fix a bunch of kerneldoc misdemeanors
Adding, removing and correcting function parameter descriptions.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Function parameter or member 'vport' not described in 'lpfc_reg_vpi'
 drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Excess function parameter 'phba' description in 'lpfc_reg_vpi'
 drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Excess function parameter 'vpi' description in 'lpfc_reg_vpi'
 drivers/scsi/lpfc/lpfc_mbox.c:886: warning: Excess function parameter 'sid' description in 'lpfc_reg_vpi'
 drivers/scsi/lpfc/lpfc_mbox.c:1218: warning: Function parameter or member 'ring' not described in 'lpfc_config_ring'
 drivers/scsi/lpfc/lpfc_mbox.c:1626: warning: Function parameter or member 'mboxq' not described in 'lpfc_mbox_tmo_val'
 drivers/scsi/lpfc/lpfc_mbox.c:1626: warning: Excess function parameter 'cmd' description in 'lpfc_mbox_tmo_val'
 drivers/scsi/lpfc/lpfc_mbox.c:1710: warning: Function parameter or member 'sge' not described in 'lpfc_sli4_mbx_sge_get'
 drivers/scsi/lpfc/lpfc_mbox.c:1780: warning: Function parameter or member 'emb' not described in 'lpfc_sli4_config'
 drivers/scsi/lpfc/lpfc_mbox.c:2027: warning: Function parameter or member 'mboxq' not described in 'lpfc_sli4_mbx_read_fcf_rec'
 drivers/scsi/lpfc/lpfc_mbox.c:2078: warning: Function parameter or member 'phba' not described in 'lpfc_request_features'

Link: https://lore.kernel.org/r/20200723122446.1329773-19-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:03 -04:00
Lee Jones fe614acd58 scsi: lpfc: Add and rename a whole bunch of function parameter descriptions
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_init.c:1136: warning: Function parameter or member 't' not described in 'lpfc_hb_timeout'
 drivers/scsi/lpfc/lpfc_init.c:1136: warning: Excess function parameter 'ptr' description in 'lpfc_hb_timeout'
 drivers/scsi/lpfc/lpfc_init.c:1170: warning: Function parameter or member 't' not described in 'lpfc_rrq_timeout'
 drivers/scsi/lpfc/lpfc_init.c:1170: warning: Excess function parameter 'ptr' description in 'lpfc_rrq_timeout'
 drivers/scsi/lpfc/lpfc_init.c:1232: warning: Function parameter or member 'work' not described in 'lpfc_idle_stat_delay_work'
 drivers/scsi/lpfc/lpfc_init.c:1817: warning: Function parameter or member 'en_rn_msg' not described in 'lpfc_sli4_port_sta_fn_reset'
 drivers/scsi/lpfc/lpfc_init.c:3033: warning: Function parameter or member 'mbx_action' not described in 'lpfc_block_mgmt_io'
 drivers/scsi/lpfc/lpfc_init.c:3481: warning: Function parameter or member 'mbx_action' not described in 'lpfc_offline_prep'
 drivers/scsi/lpfc/lpfc_init.c:4150: warning: Function parameter or member 'phba' not described in 'lpfc_new_io_buf'
 drivers/scsi/lpfc/lpfc_init.c:4150: warning: Function parameter or member 'num_to_alloc' not described in 'lpfc_new_io_buf'
 drivers/scsi/lpfc/lpfc_init.c:4150: warning: Excess function parameter 'vport' description in 'lpfc_new_io_buf'
 drivers/scsi/lpfc/lpfc_init.c:4150: warning: Excess function parameter 'num_to_allocate' description in 'lpfc_new_io_buf'
 drivers/scsi/lpfc/lpfc_init.c:4736: warning: Function parameter or member 't' not described in 'lpfc_sli4_fcf_redisc_wait_tmo'
 drivers/scsi/lpfc/lpfc_init.c:4736: warning: Excess function parameter 'ptr' description in 'lpfc_sli4_fcf_redisc_wait_tmo'
 drivers/scsi/lpfc/lpfc_init.c:5103: warning: Excess function parameter 'evt_code' description in 'lpfc_async_link_speed_to_read_top'
 drivers/scsi/lpfc/lpfc_init.c:5377: warning: Function parameter or member 'acqe_sli' not described in 'lpfc_sli4_async_sli_evt'
 drivers/scsi/lpfc/lpfc_init.c:5377: warning: Excess function parameter 'acqe_fc' description in 'lpfc_sli4_async_sli_evt'
 drivers/scsi/lpfc/lpfc_init.c:5634: warning: Function parameter or member 'phba' not described in 'lpfc_sli4_perform_all_vport_cvl'
 drivers/scsi/lpfc/lpfc_init.c:5634: warning: Excess function parameter 'vport' description in 'lpfc_sli4_perform_all_vport_cvl'
 drivers/scsi/lpfc/lpfc_init.c:5655: warning: Function parameter or member 'acqe_fip' not described in 'lpfc_sli4_async_fip_evt'
 drivers/scsi/lpfc/lpfc_init.c:5655: warning: Excess function parameter 'acqe_link' description in 'lpfc_sli4_async_fip_evt'
 drivers/scsi/lpfc/lpfc_init.c:5908: warning: Function parameter or member 'acqe_dcbx' not described in 'lpfc_sli4_async_dcbx_evt'
 drivers/scsi/lpfc/lpfc_init.c:5908: warning: Excess function parameter 'acqe_link' description in 'lpfc_sli4_async_dcbx_evt'
 drivers/scsi/lpfc/lpfc_init.c:5927: warning: Function parameter or member 'acqe_grp5' not described in 'lpfc_sli4_async_grp5_evt'
 drivers/scsi/lpfc/lpfc_init.c:5927: warning: Excess function parameter 'acqe_link' description in 'lpfc_sli4_async_grp5_evt'
 drivers/scsi/lpfc/lpfc_init.c:7279: warning: Function parameter or member 'iocb_count' not described in 'lpfc_init_iocb_list'
 drivers/scsi/lpfc/lpfc_init.c:8227: warning: Function parameter or member 'if_type' not described in 'lpfc_sli4_bar1_register_memmap'
 drivers/scsi/lpfc/lpfc_init.c:8414: warning: Excess function parameter 'phba' description in 'LINK_FLAGS_DEF'
 drivers/scsi/lpfc/lpfc_init.c:8414: warning: Excess function parameter 'rdconf' description in 'LINK_FLAGS_DEF'
 drivers/scsi/lpfc/lpfc_init.c:10734: warning: Function parameter or member 'cfg_mode' not described in 'lpfc_sli_enable_intr'
 drivers/scsi/lpfc/lpfc_init.c:11241: warning: Function parameter or member 'eqlist' not described in 'lpfc_cpuhp_get_eq'
 drivers/scsi/lpfc/lpfc_init.c:11726: warning: Function parameter or member 'cfg_mode' not described in 'lpfc_sli4_enable_intr'
 drivers/scsi/lpfc/lpfc_init.c:12997: warning: Excess function parameter 'ret' description in 'lpfc_write_firmware'
 drivers/scsi/lpfc/lpfc_init.c:13103: warning: Function parameter or member 'fw_upgrade' not described in 'lpfc_sli4_request_firmware_update'

Link: https://lore.kernel.org/r/20200723122446.1329773-17-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:02 -04:00
Lee Jones 7fa03c77cd scsi: lpfc: Use __printf() format notation
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_init.c: In function ‘lpfc_dbg_print’:
 drivers/scsi/lpfc/lpfc_init.c:14212:6: warning: function ‘lpfc_dbg_print’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
 14212 | sizeof(phba->dbg_log[idx].log), fmt, args);
 | ^~~~~~

Link: https://lore.kernel.org/r/20200723122446.1329773-16-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:32:01 -04:00
Lee Jones e415f2a2ac scsi: lpfc: Fix kerneldoc parameter formatting/misnaming/missing issues
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_hbadisc.c:1209: warning: Function parameter or member 'phba' not described in 'lpfc_sli4_clear_fcf_rr_bmask'
 drivers/scsi/lpfc/lpfc_hbadisc.c:1309: warning: Function parameter or member 'sw_name' not described in 'lpfc_sw_name_match'
 drivers/scsi/lpfc/lpfc_hbadisc.c:1309: warning: Excess function parameter 'fab_name' description in 'lpfc_sw_name_match'
 drivers/scsi/lpfc/lpfc_hbadisc.c:1397: warning: Function parameter or member 'fcf_rec' not described in 'lpfc_copy_fcf_record'
 drivers/scsi/lpfc/lpfc_hbadisc.c:1397: warning: Excess function parameter 'fcf' description in 'lpfc_copy_fcf_record'
 drivers/scsi/lpfc/lpfc_hbadisc.c:1956: warning: Cannot understand  lpfc_sli4_fcf_record_match - testing new FCF record for matching existing FCF
 on line 1956 - I thought it was a doc line
 drivers/scsi/lpfc/lpfc_hbadisc.c:2078: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_pri_list_del'
 drivers/scsi/lpfc/lpfc_hbadisc.c:2109: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_set_fcf_flogi_fail'
 drivers/scsi/lpfc/lpfc_hbadisc.c:2135: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_pri_list_add'
 drivers/scsi/lpfc/lpfc_hbadisc.c:2135: warning: Function parameter or member 'new_fcf_record' not described in 'lpfc_sli4_fcf_pri_list_add'

Link: https://lore.kernel.org/r/20200723122446.1329773-3-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:31:54 -04:00
Lee Jones a0e4a64f86 scsi: lpfc: Fix some function parameter descriptions
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_els.c:3619: warning: Function parameter or member 't' not described in 'lpfc_els_retry_delay'
 drivers/scsi/lpfc/lpfc_els.c:3619: warning: Excess function parameter 'ptr' description in 'lpfc_els_retry_delay'
 drivers/scsi/lpfc/lpfc_els.c:4877: warning: Function parameter or member 'rejectError' not described in 'lpfc_els_rsp_reject'
 drivers/scsi/lpfc/lpfc_els.c:7900: warning: Function parameter or member 't' not described in 'lpfc_els_timeout'
 drivers/scsi/lpfc/lpfc_els.c:7900: warning: Excess function parameter 'ptr' description in 'lpfc_els_timeout'
 drivers/scsi/lpfc/lpfc_els.c:8272: warning: Function parameter or member 'payload' not described in 'lpfc_send_els_event'
 drivers/scsi/lpfc/lpfc_els.c:8272: warning: Excess function parameter 'cmd' description in 'lpfc_send_els_event'
 drivers/scsi/lpfc/lpfc_els.c:8355: warning: Function parameter or member 'tlv' not described in 'lpfc_els_rcv_fpin_li'
 drivers/scsi/lpfc/lpfc_els.c:8355: warning: Excess function parameter 'lnk_not' description in 'lpfc_els_rcv_fpin_li'
 drivers/scsi/lpfc/lpfc_els.c:9688: warning: Function parameter or member 't' not described in 'lpfc_fabric_block_timeout'
 drivers/scsi/lpfc/lpfc_els.c:9688: warning: Excess function parameter 'ptr' description in 'lpfc_fabric_block_timeout'

Link: https://lore.kernel.org/r/20200723122446.1329773-2-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:31:53 -04:00
Lee Jones 11d8e56bfd scsi: lpfc: Ensure variable has the same stipulations as code using it
'pg_addr' is only used when CONFIG_X86 is defined.  So only declare it if
CONFIG_X86 is defined.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_sli.c: In function ‘lpfc_wq_create’:
 drivers/scsi/lpfc/lpfc_sli.c:15813:16: warning: unused variable ‘pg_addr’ [-Wunused-variable]
 15813 | unsigned long pg_addr;
 | ^~~~~~~

Link: https://lore.kernel.org/r/20200721164148.2617584-37-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:02 -04:00
Lee Jones 6265bc4a41 scsi: lpfc: Fix-up formatting/docrot where appropriate
Other headers have been demoted as they are too far out of sync and ideally
require effort from the authors.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'usr_flg' not described in 'lpfc_gen_req'
 drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'num_entry' not described in 'lpfc_gen_req'
 drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'tmo' not described in 'lpfc_gen_req'
 drivers/scsi/lpfc/lpfc_ct.c:321: warning: Function parameter or member 'retry' not described in 'lpfc_gen_req'
 drivers/scsi/lpfc/lpfc_ct.c:413: warning: Function parameter or member 'rsp_size' not described in 'lpfc_ct_cmd'
 drivers/scsi/lpfc/lpfc_ct.c:413: warning: Function parameter or member 'retry' not described in 'lpfc_ct_cmd'
 drivers/scsi/lpfc/lpfc_ct.c:3030: warning: Function parameter or member 'cmdcode' not described in 'lpfc_fdmi_cmd'
 drivers/scsi/lpfc/lpfc_ct.c:3030: warning: Function parameter or member 'new_mask' not described in 'lpfc_fdmi_cmd'
 drivers/scsi/lpfc/lpfc_ct.c:3272: warning: Function parameter or member 't' not described in 'lpfc_delayed_disc_tmo'

Link: https://lore.kernel.org/r/20200721164148.2617584-31-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:01 -04:00
Lee Jones c734de98a7 scsi: lpfc: Provide description for lpfc_mem_alloc()'s 'align' param
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_mem.c:85: warning: Function parameter or member 'align' not described in 'lpfc_mem_alloc'

Link: https://lore.kernel.org/r/20200721164148.2617584-29-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:01 -04:00
Lee Jones 7af29d4553 scsi: lpfc: Fix-up around 120 documentation issues
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_sli.c:257: warning: Function parameter or member 'mqe' not described in 'lpfc_sli4_mq_put'
 drivers/scsi/lpfc/lpfc_sli.c:257: warning: Excess function parameter 'wqe' description in 'lpfc_sli4_mq_put'
 drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'hq' not described in 'lpfc_sli4_rq_put'
 drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'dq' not described in 'lpfc_sli4_rq_put'
 drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'hrqe' not described in 'lpfc_sli4_rq_put'
 drivers/scsi/lpfc/lpfc_sli.c:675: warning: Function parameter or member 'drqe' not described in 'lpfc_sli4_rq_put'
 drivers/scsi/lpfc/lpfc_sli.c:675: warning: Excess function parameter 'q' description in 'lpfc_sli4_rq_put'
 drivers/scsi/lpfc/lpfc_sli.c:675: warning: Excess function parameter 'wqe' description in 'lpfc_sli4_rq_put'
 drivers/scsi/lpfc/lpfc_sli.c:738: warning: Function parameter or member 'hq' not described in 'lpfc_sli4_rq_release'
 drivers/scsi/lpfc/lpfc_sli.c:738: warning: Function parameter or member 'dq' not described in 'lpfc_sli4_rq_release'
 drivers/scsi/lpfc/lpfc_sli.c:738: warning: Excess function parameter 'q' description in 'lpfc_sli4_rq_release'
 drivers/scsi/lpfc/lpfc_sli.c:1021: warning: Function parameter or member 'xritag' not described in 'lpfc_test_rrq_active'
 drivers/scsi/lpfc/lpfc_sli.c:1132: warning: Function parameter or member 'piocbq' not described in '__lpfc_sli_get_els_sglq'
 drivers/scsi/lpfc/lpfc_sli.c:1132: warning: Excess function parameter 'piocb' description in '__lpfc_sli_get_els_sglq'
 drivers/scsi/lpfc/lpfc_sli.c:1207: warning: Function parameter or member 'piocbq' not described in '__lpfc_sli_get_nvmet_sglq'
 drivers/scsi/lpfc/lpfc_sli.c:1207: warning: Excess function parameter 'piocb' description in '__lpfc_sli_get_nvmet_sglq'
 drivers/scsi/lpfc/lpfc_sli.c:2243: warning: Function parameter or member 'rb_list' not described in 'lpfc_sli_hbqbuf_get'
 drivers/scsi/lpfc/lpfc_sli.c:2243: warning: Excess function parameter 'phba' description in 'lpfc_sli_hbqbuf_get'
 drivers/scsi/lpfc/lpfc_sli.c:2243: warning: Excess function parameter 'hbqno' description in 'lpfc_sli_hbqbuf_get'
 drivers/scsi/lpfc/lpfc_sli.c:2262: warning: Function parameter or member 'hrq' not described in 'lpfc_sli_rqbuf_get'
 drivers/scsi/lpfc/lpfc_sli.c:2262: warning: Excess function parameter 'hbqno' description in 'lpfc_sli_rqbuf_get'
 drivers/scsi/lpfc/lpfc_sli.c:3429: warning: Function parameter or member 't' not described in 'lpfc_poll_eratt'
 drivers/scsi/lpfc/lpfc_sli.c:3429: warning: Excess function parameter 'ptr' description in 'lpfc_poll_eratt'
 drivers/scsi/lpfc/lpfc_sli.c:4115: warning: Excess function parameter 'pring' description in 'lpfc_sli_abort_fcp_rings'
 drivers/scsi/lpfc/lpfc_sli.c:5331: warning: Excess function parameter 'mboxq' description in 'lpfc_sli4_read_fcoe_params'
 drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'extnt_cnt' not described in 'lpfc_sli4_cfg_post_extnts'
 drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'type' not described in 'lpfc_sli4_cfg_post_extnts'
 drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'emb' not described in 'lpfc_sli4_cfg_post_extnts'
 drivers/scsi/lpfc/lpfc_sli.c:5879: warning: Function parameter or member 'mbox' not described in 'lpfc_sli4_cfg_post_extnts'
 drivers/scsi/lpfc/lpfc_sli.c:6459: warning: Function parameter or member 'pmb' not described in 'lpfc_sli4_ras_mbox_cmpl'
 drivers/scsi/lpfc/lpfc_sli.c:6459: warning: Excess function parameter 'pmboxq' description in 'lpfc_sli4_ras_mbox_cmpl'
 drivers/scsi/lpfc/lpfc_sli.c:6912: warning: Function parameter or member 'extnt_cnt' not described in 'lpfc_sli4_get_allocated_extnts'
 drivers/scsi/lpfc/lpfc_sli.c:6912: warning: Excess function parameter 'extnt_count' description in 'lpfc_sli4_get_allocated_extnts'
 drivers/scsi/lpfc/lpfc_sli.c:7064: warning: Excess function parameter 'pring' description in 'lpfc_sli4_repost_sgl_list'
 drivers/scsi/lpfc/lpfc_sli.c:7312: warning: Function parameter or member 'phba' not described in 'lpfc_init_idle_stat_hb'
 drivers/scsi/lpfc/lpfc_sli.c:8022: warning: Function parameter or member 't' not described in 'lpfc_mbox_timeout'
 drivers/scsi/lpfc/lpfc_sli.c:8022: warning: Excess function parameter 'ptr' description in 'lpfc_mbox_timeout'
 drivers/scsi/lpfc/lpfc_sli.c:8902: warning: Function parameter or member 'mboxq' not described in 'lpfc_sli_issue_mbox_s4'
 drivers/scsi/lpfc/lpfc_sli.c:8902: warning: Excess function parameter 'pmbox' description in 'lpfc_sli_issue_mbox_s4'
 drivers/scsi/lpfc/lpfc_sli.c:9413: warning: Function parameter or member 'piocbq' not described in 'lpfc_sli4_bpl2sgl'
 drivers/scsi/lpfc/lpfc_sli.c:9413: warning: Excess function parameter 'piocb' description in 'lpfc_sli4_bpl2sgl'
 drivers/scsi/lpfc/lpfc_sli.c:9518: warning: Function parameter or member 'iocbq' not described in 'lpfc_sli4_iocb2wqe'
 drivers/scsi/lpfc/lpfc_sli.c:9518: warning: Excess function parameter 'piocb' description in 'lpfc_sli4_iocb2wqe'
 drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'phba' not described in '__lpfc_sli_issue_iocb'
 drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'ring_number' not described in '__lpfc_sli_issue_iocb'
 drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'piocb' not described in '__lpfc_sli_issue_iocb'
 drivers/scsi/lpfc/lpfc_sli.c:10212: warning: Function parameter or member 'flag' not described in '__lpfc_sli_issue_iocb'
 drivers/scsi/lpfc/lpfc_sli.c:10300: warning: Function parameter or member 'ring_number' not described in 'lpfc_sli_issue_iocb'
 drivers/scsi/lpfc/lpfc_sli.c:10300: warning: Excess function parameter 'pring' description in 'lpfc_sli_issue_iocb'
 drivers/scsi/lpfc/lpfc_sli.c:11807: warning: Function parameter or member 'cmd' not described in 'lpfc_sli_abort_taskmgmt'
 drivers/scsi/lpfc/lpfc_sli.c:11807: warning: Excess function parameter 'taskmgmt_cmd' description in 'lpfc_sli_abort_taskmgmt'
 drivers/scsi/lpfc/lpfc_sli.c:12067: warning: Function parameter or member 'ring_number' not described in 'lpfc_sli_issue_iocb_wait'
 drivers/scsi/lpfc/lpfc_sli.c:12067: warning: Excess function parameter 'pring' description in 'lpfc_sli_issue_iocb_wait'
 drivers/scsi/lpfc/lpfc_sli.c:12262: warning: Function parameter or member 'mbx_action' not described in 'lpfc_sli_mbox_sys_shutdown'
 drivers/scsi/lpfc/lpfc_sli.c:13219: warning: Function parameter or member 'irspiocbq' not described in 'lpfc_sli4_els_wcqe_to_rspiocbq'
 drivers/scsi/lpfc/lpfc_sli.c:13219: warning: Excess function parameter 'wcqe' description in 'lpfc_sli4_els_wcqe_to_rspiocbq'
 drivers/scsi/lpfc/lpfc_sli.c:13285: warning: Function parameter or member 'mcqe' not described in 'lpfc_sli4_sp_handle_async_event'
 drivers/scsi/lpfc/lpfc_sli.c:13285: warning: Excess function parameter 'cqe' description in 'lpfc_sli4_sp_handle_async_event'
 drivers/scsi/lpfc/lpfc_sli.c:13318: warning: Function parameter or member 'mcqe' not described in 'lpfc_sli4_sp_handle_mbox_event'
 drivers/scsi/lpfc/lpfc_sli.c:13318: warning: Excess function parameter 'cqe' description in 'lpfc_sli4_sp_handle_mbox_event'
 drivers/scsi/lpfc/lpfc_sli.c:13441: warning: Function parameter or member 'cq' not described in 'lpfc_sli4_sp_handle_mcqe'
 drivers/scsi/lpfc/lpfc_sli.c:13768: warning: Function parameter or member 'speq' not described in 'lpfc_sli4_sp_handle_eqe'
 drivers/scsi/lpfc/lpfc_sli.c:14126: warning: Function parameter or member 'cq' not described in 'lpfc_sli4_nvmet_handle_rcqe'
 drivers/scsi/lpfc/lpfc_sli.c:14235: warning: Function parameter or member 'cqe' not described in 'lpfc_sli4_fp_handle_cqe'
 drivers/scsi/lpfc/lpfc_sli.c:14235: warning: Excess function parameter 'eqe' description in 'lpfc_sli4_fp_handle_cqe'
 drivers/scsi/lpfc/lpfc_sli.c:14336: warning: Function parameter or member 'eq' not described in 'lpfc_sli4_hba_handle_eqe'
 drivers/scsi/lpfc/lpfc_sli.c:14808: warning: Function parameter or member 'entry_count' not described in 'lpfc_sli4_queue_alloc'
 drivers/scsi/lpfc/lpfc_sli.c:15185: warning: Function parameter or member 'type' not described in 'lpfc_cq_create'
 drivers/scsi/lpfc/lpfc_sli.c:15185: warning: Function parameter or member 'subtype' not described in 'lpfc_cq_create'
 drivers/scsi/lpfc/lpfc_sli.c:15333: warning: Function parameter or member 'type' not described in 'lpfc_cq_create_set'
 drivers/scsi/lpfc/lpfc_sli.c:15333: warning: Function parameter or member 'subtype' not described in 'lpfc_cq_create_set'
 drivers/scsi/lpfc/lpfc_sli.c:16063: warning: Function parameter or member 'subtype' not described in 'lpfc_rq_create'
 drivers/scsi/lpfc/lpfc_sli.c:16353: warning: Function parameter or member 'subtype' not described in 'lpfc_mrq_create'
 drivers/scsi/lpfc/lpfc_sli.c:16533: warning: Function parameter or member 'phba' not described in 'lpfc_eq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16590: warning: Function parameter or member 'phba' not described in 'lpfc_cq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16644: warning: Function parameter or member 'phba' not described in 'lpfc_mq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16644: warning: Function parameter or member 'mq' not described in 'lpfc_mq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16644: warning: Excess function parameter 'qm' description in 'lpfc_mq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16698: warning: Function parameter or member 'phba' not described in 'lpfc_wq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Function parameter or member 'phba' not described in 'lpfc_rq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Function parameter or member 'hrq' not described in 'lpfc_rq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Function parameter or member 'drq' not described in 'lpfc_rq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16754: warning: Excess function parameter 'rq' description in 'lpfc_rq_destroy'
 drivers/scsi/lpfc/lpfc_sli.c:16940: warning: Function parameter or member 'xri' not described in '__lpfc_sli4_free_xri'
 drivers/scsi/lpfc/lpfc_sli.c:16955: warning: Function parameter or member 'xri' not described in 'lpfc_sli4_free_xri'
 drivers/scsi/lpfc/lpfc_sli.c:17002: warning: Function parameter or member 'post_cnt' not described in 'lpfc_sli4_post_sgl_list'
 drivers/scsi/lpfc/lpfc_sli.c:17002: warning: Excess function parameter 'count' description in 'lpfc_sli4_post_sgl_list'
 drivers/scsi/lpfc/lpfc_sli.c:17221: warning: Function parameter or member 'sb_count' not described in 'lpfc_sli4_post_io_sgl_list'
 drivers/scsi/lpfc/lpfc_sli.c:17451: warning: Function parameter or member 'did' not described in 'lpfc_fc_frame_to_vport'
 drivers/scsi/lpfc/lpfc_sli.c:17590: warning: Function parameter or member 'vport' not described in 'lpfc_fc_frame_add'
 drivers/scsi/lpfc/lpfc_sli.c:17817: warning: Function parameter or member 'vport' not described in 'lpfc_sli4_seq_abort_rsp'
 drivers/scsi/lpfc/lpfc_sli.c:17817: warning: Function parameter or member 'aborted' not described in 'lpfc_sli4_seq_abort_rsp'
 drivers/scsi/lpfc/lpfc_sli.c:17817: warning: Excess function parameter 'phba' description in 'lpfc_sli4_seq_abort_rsp'
 drivers/scsi/lpfc/lpfc_sli.c:18060: warning: Function parameter or member 'seq_dmabuf' not described in 'lpfc_prep_seq'
 drivers/scsi/lpfc/lpfc_sli.c:18060: warning: Excess function parameter 'dmabuf' description in 'lpfc_prep_seq'
 drivers/scsi/lpfc/lpfc_sli.c:18332: warning: Function parameter or member 'dmabuf' not described in 'lpfc_sli4_handle_received_buffer'
 drivers/scsi/lpfc/lpfc_sli.c:18655: warning: Function parameter or member 'rpi' not described in '__lpfc_sli4_free_rpi'
 drivers/scsi/lpfc/lpfc_sli.c:18683: warning: Function parameter or member 'rpi' not described in 'lpfc_sli4_free_rpi'
 drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Function parameter or member 'ndlp' not described in 'lpfc_sli4_resume_rpi'
 drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Function parameter or member 'cmpl' not described in 'lpfc_sli4_resume_rpi'
 drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Function parameter or member 'arg' not described in 'lpfc_sli4_resume_rpi'
 drivers/scsi/lpfc/lpfc_sli.c:18714: warning: Excess function parameter 'phba' description in 'lpfc_sli4_resume_rpi'
 drivers/scsi/lpfc/lpfc_sli.c:19103: warning: Function parameter or member 'phba' not described in 'lpfc_check_next_fcf_pri_level'
 drivers/scsi/lpfc/lpfc_sli.c:19266: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_rr_index_set'
 drivers/scsi/lpfc/lpfc_sli.c:19295: warning: Function parameter or member 'fcf_index' not described in 'lpfc_sli4_fcf_rr_index_clear'
 drivers/scsi/lpfc/lpfc_sli.c:19331: warning: Function parameter or member 'mbox' not described in 'lpfc_mbx_cmpl_redisc_fcf_table'
 drivers/scsi/lpfc/lpfc_sli.c:20027: warning: Function parameter or member 'pwqeq' not described in 'lpfc_wqe_bpl2sgl'
 drivers/scsi/lpfc/lpfc_sli.c:20027: warning: Excess function parameter 'pwqe' description in 'lpfc_wqe_bpl2sgl'
 drivers/scsi/lpfc/lpfc_sli.c:20141: warning: Function parameter or member 'qp' not described in 'lpfc_sli4_issue_wqe'
 drivers/scsi/lpfc/lpfc_sli.c:20141: warning: Excess function parameter 'ring_number' description in 'lpfc_sli4_issue_wqe'
 drivers/scsi/lpfc/lpfc_sli.c:20434: warning: Function parameter or member 'qp' not described in '_lpfc_move_xri_pbl_to_pvt'
 drivers/scsi/lpfc/lpfc_sli.c:20552: warning: Function parameter or member 'hwqid' not described in 'lpfc_keep_pvt_pool_above_lowwm'
 drivers/scsi/lpfc/lpfc_sli.c:20552: warning: Excess function parameter 'qp' description in 'lpfc_keep_pvt_pool_above_lowwm'
 drivers/scsi/lpfc/lpfc_sli.c:20682: warning: Function parameter or member 'qp' not described in 'lpfc_get_io_buf_from_private_pool'

Link: https://lore.kernel.org/r/20200721164148.2617584-24-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:00 -04:00
Lee Jones 3c1311ad83 scsi: lpfc: Remove unused variable 'pg_addr'
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_sli.c: In function ‘lpfc_wq_create’:
 drivers/scsi/lpfc/lpfc_sli.c:15810:16: warning: variable ‘pg_addr’ set but not used [-Wunused-but-set-variable]
 15810 | unsigned long pg_addr;
 | ^~~~~~~

Link: https://lore.kernel.org/r/20200721164148.2617584-21-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: linux-media@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-24 22:10:00 -04:00
Lee Jones 09d99705b5 scsi: lpfc: Correct some pretty obvious misdocumentation
Either due to API slippage before the driver was mainlined or copy/paste
errors.

Fixes the following W=1 kernel build warning(s):

 drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_create_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Function parameter or member 'qsize' not described in 'lpfc_nvme_create_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:254: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_create_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:311: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_delete_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:311: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_delete_queue'
 drivers/scsi/lpfc/lpfc_nvme.c:689: warning: Function parameter or member 'gen_req_cmp' not described in '__lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Function parameter or member 'pnvme_lsreq' not described in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:801: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_ls_req'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Function parameter or member 'pnvme_lsreq' not described in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:937: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_ls_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'phba' not described in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'pwqeIn' not described in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Function parameter or member 'wcqe' not described in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1075: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_io_cmd_wqe_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'lpfc_ncmd' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'pnode' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Function parameter or member 'cstat' not described in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1313: warning: Excess function parameter 'hw_queue_handle' description in 'lpfc_nvme_prep_io_cmd'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Function parameter or member 'lpfc_ncmd' not described in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1420: warning: Excess function parameter 'hw_queue_handle' description in 'lpfc_nvme_prep_io_dma'
 drivers/scsi/lpfc/lpfc_nvme.c:1598: warning: bad line:  indicated in @lpfc_nvme_rport.
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Function parameter or member 'pnvme_fcreq' not described in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1609: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_fcp_io_submit'
 drivers/scsi/lpfc/lpfc_nvme.c:1856: warning: Function parameter or member 'abts_cmpl' not described in 'lpfc_nvme_abort_fcreq_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1856: warning: Excess function parameter 'rspiocb' description in 'lpfc_nvme_abort_fcreq_cmpl'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_lport' not described in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_rport' not described in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Function parameter or member 'pnvme_fcreq' not described in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_pnvme' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_lport' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_rport' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:1892: warning: Excess function parameter 'lpfc_nvme_fcreq' description in 'lpfc_nvme_fcp_abort'
 drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'ndlp' not described in 'lpfc_get_nvme_buf'
 drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'idx' not described in 'lpfc_get_nvme_buf'
 drivers/scsi/lpfc/lpfc_nvme.c:2093: warning: Function parameter or member 'expedite' not described in 'lpfc_get_nvme_buf'
 drivers/scsi/lpfc/lpfc_nvme.c:2197: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_create_localport'
 drivers/scsi/lpfc/lpfc_nvme.c:2330: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_destroy_localport'
 drivers/scsi/lpfc/lpfc_nvme.c:2330: warning: Excess function parameter 'pnvme' description in 'lpfc_nvme_destroy_localport'
 drivers/scsi/lpfc/lpfc_nvme.c:2543: warning: Function parameter or member 'vport' not described in 'lpfc_nvme_rescan_port'
 drivers/scsi/lpfc/lpfc_nvme.c:2543: warning: Function parameter or member 'ndlp' not described in 'lpfc_nvme_rescan_port'

Link: https://lore.kernel.org/r/20200713080001.128044-21-lee.jones@linaro.org
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 17:28:24 -04:00
James Smart 1f54682314 scsi: lpfc: NVMe remote port devloss_tmo from lldd
nvme-fc allows the driver to specify a default devloss_tmo value when
registering the remote port. The lpfc driver is currently not doing so,
although it is implementing a driver internal node loss value of 30s which
also is used on the SCSI FC remote port. As no devloss_tmo is set, the
nvme-fc transport defaults to 60s. So there are competing timers.

Additionally, due to the competing timers, it is possible the NVMe rport is
removed but the SCSI rport remains. It is possible that the SCSI FC rport,
which was registered for the NVMe port even if it doesn't utilize the SCSI
protocol, had been tuned to not match either the 60s (nvme-fc default) or
30s (lldd default), it gets out of whack. The lldd will defer to the SCSI
FC rport as long as the SCSI FC rport has not had its devloss_tmo expire.

Correct the situation by specifying a default devloss_tmo to the nvme-fc
transport when registering the rport.  Take the value from the SCSI FC
rport if it exists, otherwise use the driver default.

Link: https://lore.kernel.org/r/20200714211412.11773-1-jsmart2021@gmail.com
Tested-by: Martin George <Martin.George@netapp.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:10:00 -04:00
Anton Blanchard bc2736e98e scsi: lpfc: Quieten some printks
On a big box the lpfc driver emits a few thousand "Set Affinity" lines to
the console. Reduce the priority of these from KERN_ERR to KERN_INFO, and
also fix a few printks that had no log level.

Link: https://lore.kernel.org/r/20200713083908.1104927-1-anton@ozlabs.org
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Anton Blanchard <anton@ozlabs.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:05:20 -04:00
Dick Kennedy 77dd7d7b34 scsi: lpfc: Fix less-than-zero comparison of unsigned value
The expression start_idx - dbg_cnt is evaluated using unsigned int
arthithmetic (since these variables are unsigned ints) and hence can never
be less than zero, so the less than comparison is never true.  Rewrite the
expression to check for start_idx being less than dbg_cnt.

After the logic was corrected, temp_idx wasn't working correctly. So fix it
as well.

Link: https://lore.kernel.org/r/20200706204246.130416-1-jsmart2021@gmail.com
Fixes: 372c187b8a ("scsi: lpfc: Add an internal trace log buffer")
CC: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unsigned compared against 0")
2020-07-08 01:28:49 -04:00
Dick Kennedy 17105d959b scsi: lpfc: Fix interrupt assignments when multiple vectors are supported on same CPU
With certain platforms its possible pci_alloc_irq_vectors() may affinitize
irq vectors to multiple (all?) CPUs. The driver is currently assuming
exclusivity and vectors being doled out to different CPUs and is assigning
primary ownership of each vector to the first CPU in the mask.  The code
doesn't bother to check if the CPU already owns a vector and will
unconditionally overwrite the CPU to vector mapping. This causes the
relationships between eq's and cq's to get confused and gets worse when
CPUs start to offline. The net results are interrupts are skipped resulting
in mailbox timeouts and there are oopses in CPU offling flows.

Fix this changing up the primary vector assignment. Now assign the eq to a
CPU only if it is the CPU in the mask that does not have a prior
assignment. And once the primary ownership is assigned, break from the
loop. For CPUs that may have been set before but not the primary owner, the
lpfc_cpu_affinity_check() routine will balance the CPU to eq assignment.

Link: https://lore.kernel.org/r/20200706204230.130363-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08 01:27:25 -04:00
Colin Ian King 26e0b9aa35 scsi: lpfc: Fix inconsistent indenting
Fix smatch warning:

    drivers/scsi/lpfc/lpfc_sli.c:15156 lpfc_cq_poll_hdler() warn:
    inconsistent indenting

Link: https://lore.kernel.org/r/20200707150018.823350-1-colin.king@canonical.com
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08 01:14:34 -04:00
Dick Kennedy 3fed58b94e scsi: lpfc: Update lpfc version to 12.8.0.2
Update lpfc version to 12.8.0.2

Link: https://lore.kernel.org/r/20200630215001.70793-15-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:49 -04:00
Dick Kennedy 372c187b8a scsi: lpfc: Add an internal trace log buffer
The current logging methods typically end up requesting a reproduction with
a different logging level set to figure out what happened. This was mainly
by design to not clutter the kernel log messages with things that were
typically not interesting and the messages themselves could cause other
issues.

When looking to make a better system, it was seen that in many cases when
more data was wanted was when another message, usually at KERN_ERR level,
was logged.  And in most cases, what the additional logging that was then
enabled was typically. Most of these areas fell into the discovery machine.

Based on this summary, the following design has been put in place: The
driver will maintain an internal log (256 elements of 256 bytes).  The
"additional logging" messages that are usually enabled in a reproduction
will be changed to now log all the time to the internal log.  A new logging
level is defined - LOG_TRACE_EVENT.  When this level is set (it is not by
default) and a message marked as KERN_ERR is logged, all the messages in
the internal log will be dumped to the kernel log before the KERN_ERR
message is logged.

There is a timestamp on each message added to the internal log. However,
this timestamp is not converted to wall time when logged. The value of the
timestamp is solely to give a crude time reference for the messages.

Link: https://lore.kernel.org/r/20200630215001.70793-14-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:49 -04:00
Dick Kennedy 317aeb83c9 scsi: lpfc: Add blk_io_poll support for latency improvment
Although the existing implementation is very good at high I/O load, on
tests involving light load, especially on only a few hardware queues,
latency was a little higher than it can be due to using workqueue
scheduling. Other tasks in the system can delay handling.

Change the lower level to use irq_poll by default which uses a softirq for
I/O completion. This gives better latency as variance in when the cq is
processed is reduced over the workqueue interface. However, as high load is
better served by not being in softirq when the CPU is loaded, work queues
are still used under high I/O load.

Link: https://lore.kernel.org/r/20200630215001.70793-13-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:42 -04:00
Dick Kennedy f0020e428a scsi: lpfc: Add support to display if adapter dumps are available
Currently, if there has been an issue whereby an adapter dump was taken,
there is nothing displayed to hint that it is present. Utilities must be
run and they must query for the status in order to then download the dump.

Add a message to the driver to query dump image presence when initializing
the SLI Port.

Link: https://lore.kernel.org/r/20200630215001.70793-12-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:41 -04:00
Dick Kennedy 45bc44270f scsi: lpfc: Allow applications to issue Common Set Features mailbox command
Currently the driver validates command codes received from the
application. COMMON_SET_FEATURES is not currently being approved.

Add definition of the missing command and allow it to be issued by
applications.

Link: https://lore.kernel.org/r/20200630215001.70793-11-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:40 -04:00
Dick Kennedy 28ed737440 scsi: lpfc: Fix language in 0373 message to reflect non-error message
Change vocabulary of 0373 log msg from "error" to "cmpl" The current
language of the 0373 message contains the word "error" which caused a
number of customers to inquire about the "error" and if it should be a
concern. It isn't an error, it's simply an io completion status.

Revise the message to replace the word "error" with "cmpl" for completion.

Link: https://lore.kernel.org/r/20200630215001.70793-10-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:39 -04:00
Dick Kennedy 86ee57a97a scsi: lpfc: Fix kdump hang on PPC
When the kdump kernel shuts down lpfc calls flush_work_queue on an
interrupt to schedule the cq handler. When there is only one CPU active on
the kdump kernel, it is possible for the work_on to get scheduled on a
non-active CPU causing it to never be scheduled.

When in the kdump environment, per-CPU affinity of cq's to cpus is not
necessary. In those cases, use a general queue_work rather than a
queue_work_on().

Link: https://lore.kernel.org/r/20200630215001.70793-9-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:38 -04:00
Dick Kennedy 03dbfe0668 scsi: lpfc: Fix shost refcount mismatch when deleting vport
When vports are deleted, it is observed that there is memory/kthread
leakage as the vport isn't fully being released.

There is a shost reference taken in scsi_add_host_dma that is not released
during scsi_remove_host. It was noticed that other drivers resolve this by
doing a scsi_host_put after calling scsi_remove_host.

The vport_delete routine is taking two references one that corresponds to
an access to the scsi_host in the vport_delete routine and another that is
released after the adapter mailbox command completes that destroys the VPI
that corresponds to the vport.

Remove one of the references taken such that the second reference that is
put will complete the missing scsi_add_host_dma reference and the shost
will be terminated.

Link: https://lore.kernel.org/r/20200630215001.70793-8-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:37 -04:00
Dick Kennedy 9dace1fa91 scsi: lpfc: Fix stack trace seen while setting rrq active
Call traces have been observed running different tests that involve aborts
and setting the rrq active flag.  The lpfc_set_rrq_active routine is doing
a mempool_alloc under the soft_irq processing level. When the mempool needs
to get a new buffer from the free pool and has to wait for memory to become
free it will check the flags passed in on the alloc and dump the stack if
the thread is running in interrupt context.

Replace the GFP_KERNEL flag with GFP_ATOMIC so that the memory allocation
will not attempt to sleep if there is no mem available.

Link: https://lore.kernel.org/r/20200630215001.70793-7-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:37 -04:00
Dick Kennedy d91e3abb68 scsi: lpfc: Fix oops due to overrun when reading SLI3 data
When using DUMP on SLI3 to read VPD and Port status data (config region
23), the adapter is overruning the kmalloc'd buffer causing havoc on other
consumers of the allocation pools.

Rework the loops processing the dump data and validate/size memory lengths
before performing bcopy.

Link: https://lore.kernel.org/r/20200630215001.70793-6-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:36 -04:00
Dick Kennedy 9806c984d4 scsi: lpfc: Fix NVMe rport deregister and registration during ADISC
During driver unload/reload testing, the NVMe initiator would not
re-establish connectivity to NVMe controllers on reload.

The failing NVMe array supports concurrent FCP and NVMe operation via
different nport_id's. The array was repeatedly sending an ADISC every 2
seconds after PLOGI completed and while NVMe subsystems were executing
discovery. The target would continue this state for roughly 45 seconds.

The driver's current behavior on ADISC receipt is to validate a the ADISC
vs the device and issue a RESUME_RPI to restore transmission. The receipt
of the ADISC effectively caused a driver to take actions similar to a
logout and login for the remote port, causing the deregistration of the
nvme rport and a subsequent re-registration.  This caused a constant reset
and re-connect of the NVMe controller while this 45s window occurred. There
was no need for the state changes as ADISC does not change login state.

This patch corrects this behavior by validating if the remoteport is
already logged in (MAPPED) and when true, avoids the call to set the ndlp
state to MAPPED, which triggers the unreg/re-reg. Thus ADISC does not
change the login state of the node.

Link: https://lore.kernel.org/r/20200630215001.70793-5-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:35 -04:00
Dick Kennedy c93764a65b scsi: lpfc: Fix missing MDS functionality
Visual code inspection of the MDS implementation revealed two errors in
the driver:

 - The set features Feature Code had an incorrect value

 - The routine that classifies command type for cmd completions was missing
   the Send Frame definition. Send Frame is used for MDS driver loopback.

Link: https://lore.kernel.org/r/20200630215001.70793-3-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:34 -04:00
Dick Kennedy e5fcb81d40 scsi: lpfc: Fix unused assignment in lpfc_sli4_bsg_link_diag_test
Coverity reported the following error:

  Assigned value that is never used may represent unnecessary computation.

The rc variable was initially assigned a value but in several cases, when
an error case is detected, it is reassigned a new value. The initial value
had little use.

In code-reviewing this routine, it could use some cleanup:

 - Setting the initialization value to -ENODEV is a much better choice and
   lessens code in the routine.

 - The wasn't tracking logic errors vs no error and mailbox failure.
   Better to resolve by adding a status to track the mailbox failure
   and merge it with the logic error when the routine returns.

Link: https://lore.kernel.org/r/20200630215001.70793-2-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-02 23:06:33 -04:00
SeongJae Park 46da547e21 scsi: lpfc: Avoid another null dereference in lpfc_sli4_hba_unset()
Commit cdb42becdd ("scsi: lpfc: Replace io_channels for nvme and fcp with
general hdw_queues per cpu") has introduced static checker warnings for
potential null dereferences in 'lpfc_sli4_hba_unset()' and commit 1ffdd2c044
("scsi: lpfc: resolve static checker warning in lpfc_sli4_hba_unset") has
tried to fix it.  However, yet another potential null dereference is
remaining.  This commit fixes it.

This bug was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.

Link: https://lore.kernel.org/r/20200623084122.30633-1-sjpark@amazon.com
Fixes: 1ffdd2c044 ("scsi: lpfc: resolve static checker warning inlpfc_sli4_hba_unset")
Fixes: cdb42becdd ("scsi: lpfc: Replace io_channels for nvme and fcp with general hdw_queues per cpu")
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-23 23:56:52 -04:00
Linus Torvalds 818dbde78e SCSI misc on 20200605
This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
 target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
 of other minor updates.  There are no major core changes in this
 series apart from a refactoring in scsi_lib.c.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.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 series consists of the usual driver updates (qla2xxx, ufs, zfcp,
  target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
  of other minor updates.

  There are no major core changes in this series apart from a
  refactoring in scsi_lib.c"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits)
  scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes
  scsi: cxgb3i: Fix some leaks in init_act_open()
  scsi: ibmvscsi: Make some functions static
  scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim
  scsi: ufs: Fix WriteBooster flush during runtime suspend
  scsi: ufs: Fix index of attributes query for WriteBooster feature
  scsi: ufs: Allow WriteBooster on UFS 2.2 devices
  scsi: ufs: Remove unnecessary memset for dev_info
  scsi: ufs-qcom: Fix scheduling while atomic issue
  scsi: mpt3sas: Fix reply queue count in non RDPQ mode
  scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event
  scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()
  scsi: vhost: Notify TCM about the maximum sg entries supported per command
  scsi: qla2xxx: Remove return value from qla_nvme_ls()
  scsi: qla2xxx: Remove an unused function
  scsi: iscsi: Register sysfs for iscsi workqueue
  scsi: scsi_debug: Parser tables and code interaction
  scsi: core: Refactor scsi_mq_setup_tags function
  scsi: core: Fix incorrect usage of shost_for_each_device
  scsi: qla2xxx: Fix endianness annotations in source files
  ...
2020-06-05 15:11:50 -07:00
Linus Torvalds bce159d734 for-5.8/drivers-2020-06-01
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Merge tag 'for-5.8/drivers-2020-06-01' of git://git.kernel.dk/linux-block

Pull block driver updates from Jens Axboe:
 "On top of the core changes, here are the block driver changes for this
  merge window:

   - NVMe changes:
        - NVMe over Fibre Channel protocol updates, which also reach
          over to drivers/scsi/lpfc (James Smart)
        - namespace revalidation support on the target (Anthony
          Iliopoulos)
        - gcc zero length array fix (Arnd Bergmann)
        - nvmet cleanups (Chaitanya Kulkarni)
        - misc cleanups and fixes (me, Keith Busch, Sagi Grimberg)
        - use a SRQ per completion vector (Max Gurtovoy)
        - fix handling of runtime changes to the queue count (Weiping
          Zhang)
        - t10 protection information support for nvme-rdma and
          nvmet-rdma (Israel Rukshin and Max Gurtovoy)
        - target side AEN improvements (Chaitanya Kulkarni)
        - various fixes and minor improvements all over, icluding the
          nvme part of the lpfc driver"

   - Floppy code cleanup series (Willy, Denis)

   - Floppy contention fix (Jiri)

   - Loop CONFIGURE support (Martijn)

   - bcache fixes/improvements (Coly, Joe, Colin)

   - q->queuedata cleanups (Christoph)

   - Get rid of ioctl_by_bdev (Christoph, Stefan)

   - md/raid5 allocation fixes (Coly)

   - zero length array fixes (Gustavo)

   - swim3 task state fix (Xu)"

* tag 'for-5.8/drivers-2020-06-01' of git://git.kernel.dk/linux-block: (166 commits)
  bcache: configure the asynchronous registertion to be experimental
  bcache: asynchronous devices registration
  bcache: fix refcount underflow in bcache_device_free()
  bcache: Convert pr_<level> uses to a more typical style
  bcache: remove redundant variables i and n
  lpfc: Fix return value in __lpfc_nvme_ls_abort
  lpfc: fix axchg pointer reference after free and double frees
  lpfc: Fix pointer checks and comments in LS receive refactoring
  nvme: set dma alignment to qword
  nvmet: cleanups the loop in nvmet_async_events_process
  nvmet: fix memory leak when removing namespaces and controllers concurrently
  nvmet-rdma: add metadata/T10-PI support
  nvmet: add metadata support for block devices
  nvmet: add metadata/T10-PI support
  nvme: add Metadata Capabilities enumerations
  nvmet: rename nvmet_check_data_len to nvmet_check_transfer_len
  nvmet: rename nvmet_rw_len to nvmet_rw_data_len
  nvmet: add metadata characteristics for a namespace
  nvme-rdma: add metadata/T10-PI support
  nvme-rdma: introduce nvme_rdma_sgl structure
  ...
2020-06-02 15:37:03 -07:00
Al Viro e6c0433e27 lpfc_debugfs: get rid of pointless access_ok()
No, you do NOT need to "protect copy from user" that way.
Incidentally, your userland ABI stinks.  I understand that you
wanted to accept "reset" and "reset\n" as equivalent, but I suspect
that accepting "reset this, you !@^!@!" had been an accident.
Nothing to do about that now - it is a userland ABI...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-05-29 11:05:54 -04:00
James Smart 6b6e89636f lpfc: Fix return value in __lpfc_nvme_ls_abort
A static checker reported the following issue:
  drivers/scsi/lpfc/lpfc_nvmet.c:1366 lpfc_nvmet_ls_abort()
  warn: 'ret' can be either negative or positive

The comment indicates a non-zero value indicates error in the
form of -Exxx, but the code is returning "1".

Fix the code to return -EINVAL to be compliant to comment.

Fixes: e96a22b0b7 ("lpfc: Refactor Send LS Abort support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-05-27 07:12:41 +02:00
James Smart 4e57e0b9f3 lpfc: fix axchg pointer reference after free and double frees
The axchg structure is a structure allocated early in the
lpfc_nvme_unsol_ls_handler() to represent the newly received exchange.
Upon error, the out_fail path in the routine unconditionally frees the
pointer, yet subsequently passes the pointer to the abort routine.
Additionally, the abort routine, lpfc_nvme_unsol_ls_issue_abort(), also
has a failure path that will attempt to delete the pointer on error.

Fix these errors by:
- Removing the unconditional free so that it stays valid if passed
  to the abort routine.
- Revise the abort routine to not free the pointer. Instead, return
  a success/failure status. Note: if success, the later completion of
  the abort frees the structure.
- Back in the unsol_ls_handler() error path, if the abort routine was
  skipped (thus no possible reference) or the abort routine returned
  error, free the pointer.

Fixes: 3a8070c567 ("lpfc: Refactor NVME LS receive handling")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-05-27 07:12:41 +02:00
James Smart fcdd14b86f lpfc: Fix pointer checks and comments in LS receive refactoring
Additional testing encountered null pointers that weren't fully qualified
in lpfc_nvmet_xmt_ls_abort_cmp() and lpfc_nvmet_unsol_issue_abort().

The same error was detected and reported by static checker reporting:
  drivers/scsi/lpfc/lpfc_sli.c:2905 lpfc_nvme_unsol_ls_handler()
  error: we previously assumed 'phba->targetport' could be null
    (see line 2837)

Fix by making phba->nvmet_support and phba->targetport validity checks
in lpfc_nvmet_xmt_ls_abort_cmp() and lpfc_nvmet_unsol_issue_abort().

Fixes: 3a8070c567 (“lpfc: Refactor NVME LS receive handling”)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Paul Ely <paul.ely@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-05-27 07:12:40 +02:00