Commit Graph

228 Commits

Author SHA1 Message Date
Saurav Kashyap b09ea43fec scsi: qedf: Do not kill timeout work for original I/O on RRQ completion
The timer is already cancelled when abort is completed, hence no need to
cancel it again.

Link: https://lore.kernel.org/r/20200807110656.19965-4-jhasan@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-20 21:41:51 -04:00
Saurav Kashyap 7fb8ff0806 scsi: qedf: Check the validity of rjt frame before processing
This is reported by Klockwork.

Link: https://lore.kernel.org/r/20200807110656.19965-3-jhasan@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-20 21:41:51 -04:00
Saurav Kashyap a521bbc38d scsi: qedf: Check for port type and role before processing an event
The rport lock gets initialized during offload. If a non-FCP or non-target
rport got logout then this rport will be uninitialized. KASAN was
complaining because of it.

=========
[   14.384434] the code is fine but needs lockdep annotation.
[   14.384482] turning off the locking correctness validator.
========

Link: https://lore.kernel.org/r/20200807110656.19965-2-jhasan@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-20 21:41:51 -04:00
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
Alexander Lobakin bdb5d8ec47 qed, qede, qedf: convert link mode from u32 to ETHTOOL_LINK_MODE
Currently qed driver already ran out of 32 bits to store link modes,
and this doesn't allow to add and support more speeds.
Convert custom link mode to generic Ethtool bitmap and definitions
(convenient Phylink shorthands are used for elegance and readability).
This allowed us to drop all conversions/mappings between the driver
and Ethtool.

This involves changes in qede and qedf as well, as they used definitions
from shared "qed_if.h".

Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20 17:59:43 -07:00
Lee Jones ce7e0a84e5 scsi: qedf: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the demoted functions here.

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

 drivers/scsi/qedf/qedf_debugfs.c:25: warning: Function parameter or member 'qedf' not described in 'qedf_dbg_host_init'
 drivers/scsi/qedf/qedf_debugfs.c:25: warning: Function parameter or member 'dops' not described in 'qedf_dbg_host_init'
 drivers/scsi/qedf/qedf_debugfs.c:25: warning: Function parameter or member 'fops' not described in 'qedf_dbg_host_init'
 drivers/scsi/qedf/qedf_debugfs.c:25: warning: Excess function parameter 'pf' description in 'qedf_dbg_host_init'
 drivers/scsi/qedf/qedf_debugfs.c:51: warning: Function parameter or member 'qedf_dbg' not described in 'qedf_dbg_host_exit'
 drivers/scsi/qedf/qedf_debugfs.c:51: warning: Excess function parameter 'pf' description in 'qedf_dbg_host_exit'
 drivers/scsi/qedf/qedf_debugfs.c:64: warning: Function parameter or member 'drv_name' not described in 'qedf_dbg_init'

Link: https://lore.kernel.org/r/20200713074645.126138-23-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@cavium.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:01:58 -04:00
Lee Jones 50efc51cb9 scsi: qedf: Remove a whole host of unused variables
Fixes the following W=1 kernel build warning(s):

 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_cmd_timeout’:
 drivers/scsi/qedf/qedf_io.c:25:5: warning: variable ‘op’ set but not used [-Wunused-but-set-variable]
 25 | u8 op = 0;
 | ^~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_map_sg’:
 drivers/scsi/qedf/qedf_io.c:490:12: warning: variable ‘end_addr’ set but not used [-Wunused-but-set-variable]
 490 | u64 addr, end_addr;
 | ^~~~~~~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_post_io_req’:
 drivers/scsi/qedf/qedf_io.c:863:22: warning: variable ‘req_type’ set but not used [-Wunused-but-set-variable]
 863 | enum fcoe_task_type req_type = 0;
 | ^~~~~~~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_scsi_completion’:
 drivers/scsi/qedf/qedf_io.c:1134:31: warning: variable ‘task_ctx’ set but not used [-Wunused-but-set-variable]
 1134 | struct e4_fcoe_task_context *task_ctx;
 | ^~~~~~~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_scsi_done’:
 drivers/scsi/qedf/qedf_io.c:1345:6: warning: variable ‘xid’ set but not used [-Wunused-but-set-variable]
 1345 | u16 xid;
 | ^~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_initiate_abts’:
 drivers/scsi/qedf/qedf_io.c:1866:6: warning: variable ‘r_a_tov’ set but not used [-Wunused-but-set-variable]
 1866 | u32 r_a_tov = 0;
 | ^~~~~~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_process_abts_compl’:
 drivers/scsi/qedf/qedf_io.c:1967:11: warning: variable ‘xid’ set but not used [-Wunused-but-set-variable]
 1967 | uint16_t xid;
 | ^~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_initiate_cleanup’:
 drivers/scsi/qedf/qedf_io.c:2163:31: warning: variable ‘task’ set but not used [-Wunused-but-set-variable]
 2163 | struct e4_fcoe_task_context *task;
 | ^~~~
 drivers/scsi/qedf/qedf_io.c: In function ‘qedf_process_unsol_compl’:
 drivers/scsi/qedf/qedf_io.c:2534:11: warning: variable ‘tmp’ set but not used [-Wunused-but-set-variable]
 2534 | uint16_t tmp;
 | ^~~

Link: https://lore.kernel.org/r/20200713074645.126138-17-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@cavium.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:01:58 -04:00
Lee Jones c6e2f4bd79 scsi: qedf: Remove set but not checked variable 'tmp'
Looks like the return value of readw() has never been checked.

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

 drivers/scsi/qedf/qedf_main.c: In function ‘__qedf_probe’:
 drivers/scsi/qedf/qedf_main.c:3203:6: warning: variable ‘tmp’ set but not used [-Wunused-but-set-variable]

Link: https://lore.kernel.org/r/20200713074645.126138-10-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@cavium.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:01:57 -04:00
Lee Jones a9d4aece22 scsi: qedf: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document either of the demoted functions here.

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

 drivers/scsi/qedf/qedf_main.c:1027: warning: Function parameter or member 'lport' not described in 'qedf_xmit'
 drivers/scsi/qedf/qedf_main.c:1027: warning: Function parameter or member 'fp' not described in 'qedf_xmit'
 drivers/scsi/qedf/qedf_main.c:1426: warning: Function parameter or member 'lport' not described in 'qedf_rport_event_handler'
 drivers/scsi/qedf/qedf_main.c:1426: warning: Function parameter or member 'rdata' not described in 'qedf_rport_event_handler'
 drivers/scsi/qedf/qedf_main.c:1426: warning: Function parameter or member 'event' not described in 'qedf_rport_event_handler'

Link: https://lore.kernel.org/r/20200713074645.126138-9-lee.jones@linaro.org
Cc: QLogic-Storage-Upstream@cavium.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:01:57 -04:00
Linus Torvalds 6adc19fd13 Kbuild updates for v5.8 (2nd)
- fix build rules in binderfs sample
 
  - fix build errors when Kbuild recurses to the top Makefile
 
  - covert '---help---' in Kconfig to 'help'
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Merge tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - fix build rules in binderfs sample

 - fix build errors when Kbuild recurses to the top Makefile

 - covert '---help---' in Kconfig to 'help'

* tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  treewide: replace '---help---' in Kconfig files with 'help'
  kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
  samples: binderfs: really compile this sample and fix build issues
2020-06-13 13:29:16 -07:00
Masahiro Yamada a7f7f6248d treewide: replace '---help---' in Kconfig files with 'help'
Since commit 84af7a6194 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-14 01:57:21 +09:00
Colin Ian King 89523cb8a6 scsi: qedf: Remove redundant initialization of variable rc
The variable rc is being initialized with a value that is never read and it
is being updated later with a new value.  The initialization is redundant
and can be removed.

Link: https://lore.kernel.org/r/20200527115242.172344-1-colin.king@canonical.com
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-02 21:44:14 -04:00
Saurav Kashyap 7109cb5151 scsi: qedf: Get dev info after updating the params
An update to pf params can change the devinfo. Get updated device
information.

[mkp: updated error message spotted by Sergei Shtylyov]

Link: https://lore.kernel.org/r/20200416084314.18851-10-skashyap@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:29 -04:00
Chad Dupuis ad40f52560 scsi: qedf: Fix crash when MFW calls for protocol stats while function is still probing
The MFW may make a call to qed and then to qedf for protocol statistics
while the function is still probing.  If this happens it's possible that
some members of the struct qedf_ctx may not be fully initialized which can
result in a NULL pointer dereference or general protection fault.

To prevent this, add a new flag call QEDF_PROBING and set it when the
__qedf_probe() function is active. Then in the qedf_get_protocol_tlv_data()
function we can check if the function is still probing and return
immediantely before any uninitialized structures can be touched.

Link: https://lore.kernel.org/r/20200416084314.18851-9-skashyap@marvell.com
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:29 -04:00
Chad Dupuis f6b172f219 scsi: qedf: Add schedule recovery handler
Implement recovery handler to be used by QED to signal the need for
recovery to come out of an error condition like ramrod struck and firmware
context reset.

Link: https://lore.kernel.org/r/20200416084314.18851-8-skashyap@marvell.com
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:28 -04:00
Saurav Kashyap 6e7c8eea92 scsi: qedf: Implement callback for bw_update
Add support for the common qed bw_update callback to qedf.  This function
is called whenever there is a reported change in the bandwidth and updates
corresponding values in sysfs.

Link: https://lore.kernel.org/r/20200416084314.18851-7-skashyap@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:27 -04:00
Javed Hasan fedc173e46 scsi: qedf: Honor status qualifier in FCP_RSP per spec
Handle scope and qualifier on SAM_STAT_TASK_SET_FULL or SAM_STAT_BUSY

[mkp: added braces to fix sparse complaint]

Link: https://lore.kernel.org/r/20200416084314.18851-5-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:25 -04:00
Javed Hasan 334b4f988f scsi: qedf: Acquire rport_lock for resetting the delay_timestamp
Retry delay timestamp is updated in queuecommand as well as in
qedf_scsi_completion routine. Protect it using lock.

Link: https://lore.kernel.org/r/20200416084314.18851-4-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:25 -04:00
Javed Hasan b0c4187e26 scsi: qedf: Increase the upper limit of retry delay
Max time to hold the IO in case of SAM_STAT_TASK_SET_FULL or SAM_STAT_BUSY.

Link: https://lore.kernel.org/r/20200416084314.18851-3-skashyap@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:24 -04:00
Saurav Kashyap ab0a82991f scsi: qedf: Keep track of num of pending flogi
If a port is brought down for an extended period of time, the fipvlan
counter gets exhausted and the driver will fall back to default VLAN 1002
and call fcoe_ctlr_link_up to log in. However, the switch will discard the
FLOGI attempt because the VLAN is now different.

Keep track of the number of FLOGI attempts and if a threshold of
QEDF_FLOGI_RETRY_CNT is exceeded, perform a context soft reset.

Link: https://lore.kernel.org/r/20200416084314.18851-2-skashyap@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-17 17:55:23 -04:00
Daniel Wagner fbbef0dad7 scsi: qedf: Simplify mutex_unlock() usage
The commit 6d1368e8f9 ("scsi: qedf: fixup locking in
qedf_restart_rport()") introduced the lock. Though the lock protects
only the fc_rport_create() call. Thus, we can move the mutex unlock up
before the if statement and drop the else body.

Link: https://lore.kernel.org/r/20200403092717.19779-1-dwagner@suse.de
Cc: Hannes Reinecke <hare@suse.com>
Cc: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-13 20:38:24 -04:00
Jacob Keller dbce64cbee scsi: qedf: Use pci_get_dsn()
Replace the open-coded implementation for reading the PCIe DSN with
pci_get_dsn().

The original code used a for-loop that looped over each of the 8 bytes
and copied them into a temporary buffer. pci_get_dsn() uses two calls to
pci_read_config_dword, and correctly bitwise ORs them into a u64. Thus,
we can simplify the snprintf significantly using %016llX on a u64 value.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-05 17:36:24 -08:00
Geert Uytterhoeven 1125c70a92 scsi: Fix various misspellings of "connect"
Fix misspellings of "disonnect", "reconnect", "connection", "connected",
and "disconnection".

Link: https://lore.kernel.org/r/20191024152633.30404-1-geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-24 21:22:32 -04:00
Martin K. Petersen a3a8d13f62 Merge branch '5.4/scsi-fixes' into 5.5/scsi-queue
The qla2xxx driver updates for 5.5 depend on the fixes queued for
5.4.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-09 21:54:04 -04:00
Daniel Wagner c3dde2f3fe scsi: qedf: Add port_id getter
Add qedf_get_host_port_id() to the transport template.

The fc_transport_template initializes the port_id member to the default
value of -1. The new getter ensures that the sysfs entry shows the current
value and not the default one, e.g by using 'lsscsi -H -t'

Link: https://lore.kernel.org/r/20190924072906.23737-1-dwagner@suse.de
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-30 23:04:34 -04:00
Austin Kim 4b062e7cf9 scsi: qedf: Remove always false 'tmp_prio < 0' statement
Since tmp_prio is declared as u8, the following statement is always false.
   tmp_prio < 0

So remove 'always false' statement.

Link: https://lore.kernel.org/r/20190919075548.GA112801@LGEARND20B15
Signed-off-by: Austin Kim <austindh.kim@gmail.com>
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-23 23:09:42 -04:00
Linus Torvalds 10fd71780f SCSI misc on 20190919
This is mostly update of the usual drivers: qla2xxx, ufs, smartpqi,
 lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates.
 The only core change this time around is the addition of request
 batching for virtio.  Since batching requires an additional flag to
 use, it should be invisible to the rest of the drivers.
 
 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 is mostly update of the usual drivers: qla2xxx, ufs, smartpqi,
  lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates. The
  only core change this time around is the addition of request batching
  for virtio. Since batching requires an additional flag to use, it
  should be invisible to the rest of the drivers"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (264 commits)
  scsi: hisi_sas: Fix the conflict between device gone and host reset
  scsi: hisi_sas: Add BIST support for phy loopback
  scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation
  scsi: hisi_sas: Remove some unused function arguments
  scsi: hisi_sas: Remove redundant work declaration
  scsi: hisi_sas: Remove hisi_sas_hw.slot_complete
  scsi: hisi_sas: Assign NCQ tag for all NCQ commands
  scsi: hisi_sas: Update all the registers after suspend and resume
  scsi: hisi_sas: Retry 3 times TMF IO for SAS disks when init device
  scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails
  scsi: hisi_sas: Directly return when running I_T_nexus reset if phy disabled
  scsi: hisi_sas: Use true/false as input parameter of sas_phy_reset()
  scsi: hisi_sas: add debugfs auto-trigger for internal abort time out
  scsi: virtio_scsi: unplug LUNs when events missed
  scsi: scsi_dh_rdac: zero cdb in send_mode_select()
  scsi: fcoe: fix null-ptr-deref Read in fc_release_transport
  scsi: ufs-hisi: use devm_platform_ioremap_resource() to simplify code
  scsi: ufshcd: use devm_platform_ioremap_resource() to simplify code
  scsi: hisi_sas: use devm_platform_ioremap_resource() to simplify code
  scsi: ufs: Use kmemdup in ufshcd_read_string_desc()
  ...
2019-09-21 10:50:15 -07:00
Saurav Kashyap 32dce48c05 scsi: qedf: Update the version to 8.42.3.0
Update the driver version to 8.42.3.0.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:19 -04:00
Saurav Kashyap 3480e7a8c8 scsi: qedf: Fix race betwen fipvlan request and response path
There is a race b/w fipvlan request and response path:

=====
qedf_fcoe_process_vlan_resp:113]:2: VLAN response, vid=0xffd.
qedf_initiate_fipvlan_req:165]:2: vlan = 0x6ffd already set.
qedf_set_vlan_id:139]:2: Setting vlan_id=0ffd prio=3.
======

The request thread sees that vlan is already set and fails to call
ctrl_link_up.

Fix:

 - While setting vlan_id use local variable and before setting vlan_id.

 - Call fcoe_ctlr_link_up in next iteration of fipvlan request.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:19 -04:00
Hannes Reinecke 5797bcc897 scsi: qedf: Use discovery list to traverse rports
The list of rports might become stale so we should rather traverse the
discovery list when trying relogin.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:19 -04:00
Saurav Kashyap f6d63678b0 scsi: qedf: Decrease the LL2 MTU size to 2500
Decrease the LL2 MTU size to 2500.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:19 -04:00
Saurav Kashyap 0482262646 scsi: qedf: Check for module unloading bit before processing link update AEN
Prevent race where we're removing the module and we get link update

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:19 -04:00
Saurav Kashyap b29a907f10 scsi: qedf: Initiator fails to re-login to switch after link down
Problem Statement:

 - Driver has fc_id of 0xcc0200

 - Driver gets link down (due to test) and calls fcoe_ctlr_link_down().

 - At this point, the fc_id of the initiator port is zeroed out.

 - Driver gets a link up 14 seconds later.

 - Driver performs FIP VLAN request, gets a response from the switch.

 - No change in VLAN is detected.

 - Driver then notifies libfcoe via fcoe_ctlr_link_up().

 - Libfcoe then issues a multicast discovery solicitation as expected.

 - Cisco FCF responds to that correctly.

 - Libfcoe at this point starts a 3 sec count-down to allow any other FCFs
   to be discovered. However, at this point, it has been 20 seconds since
   the last FKA from the driver (which would have been sent prior to
   backlink toggle), which causes the CVL to be issued from Cisco CVL from
   the switch is dropped by the driver as the vx_port identification
   descriptor is present and has value of 0xcc0200, which does not match
   the driver's value of 0.  Libfcoe completes the 3 sec count down and
   proceeds to issue FLOGI as per protocol.  Switch rejects FLogi request.
   All subsequent FLOGI requests from libfc are rejected by the switch
   (possibly because it is now expecting a new solicitation).  This
   situation will continue until the next link toggle.

Solution:

The Vx_port descriptor in the CVL has three fields:

MAC address
Fabric ID
Port Name

Today, the code checks for both #1 and #2 above. In the case where we went
through a link down, both these will be zero until FLOGI succeeds.

We should change our code to check if any one of these 3 is valid and if
so, handle the CVL (basically switching from AND to OR). The port name
field is definitely expected to be valid always.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:19 -04:00
Saurav Kashyap aa5175a88c scsi: qedf: Add debug information for unsolicited processing
Log s_id, d_id, type and command to the log message.

[mkp: fixed warning]

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:51:08 -04:00
Saurav Kashyap 931285e012 scsi: qedf: Add support for 20 Gbps speed
The current code doeesn't support 20Gbps speed for current and supported
speed. Add support for it.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:22 -04:00
Saurav Kashyap fa74f5e380 scsi: qedf: Interpret supported caps value correctly
Driver was wrongly interpreting the supported cap value returned by qed.

Solution: Use QED define macros instead of OS defined for interpreting
supporting speeds.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:22 -04:00
Saurav Kashyap 31696204c4 scsi: qedf: Add shutdown callback handler
Add shutdown callback handler.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:22 -04:00
Nilesh Javali ec6350b800 scsi: qedf: Update module description string
Update module description.

Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:22 -04:00
Arun Easi 47aeee5549 scsi: qedf: Fix crash during sg_reset
Driver was attempting to print cdb[0], which is not set for resets coming
from SCSI ioctls. Check for cmd_len before accessing cmnd.

Crash info:
[84790.864747] BUG: unable to handle kernel NULL pointer dereference at (null)
[84790.864783] IP: qedf_initiate_tmf+0x7a/0x6e0 [qedf]
[84790.865204] Call Trace:
[84790.865246]  scsi_try_target_reset+0x2b/0x90 [scsi_mod]
[84790.865266]  scsi_ioctl_reset+0x20f/0x2a0 [scsi_mod]
[84790.865284]  scsi_ioctl+0x131/0x3a0 [scsi_mod]

Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:22 -04:00
Saurav Kashyap 4909e153e6 scsi: qedf: Stop sending fipvlan request on unload
- On some setups fipvlan can be retried for long duration and the
   connection to switch was not there so it was not getting any reply.

 - During unload this thread was hanging.

Problem Resolution:

Check if unload is in progress, then quit from fipvlan thread.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:21 -04:00
Saurav Kashyap e82e6ff777 scsi: qedf: Print message during bailout conditions
Print messages during exiting condition to help debugging.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-29 18:44:21 -04:00
Jonathan Lemon b54c9d5bd6 net: Use skb_frag_off accessors
Use accessor functions for skb fragment's page_offset instead
of direct references, in preparation for bvec conversion.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-30 14:21:32 -07:00
David S. Miller 13091aa305 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes,
nothing really interesting to report.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-17 20:20:36 -07:00
Thomas Gleixner 3287e96af0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440
Based on 1 normalized pattern(s):

  this software is available under the terms of the gnu general public
  license gpl version 2 available from the file copying in the main
  directory of this source tree

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 35 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.411886531@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:17 +02:00
Chad Dupuis a9b02c615b qedf: Use hwfns and affin_hwfn_idx to get MSI-X vector index to use
MSI-X vector index is determined using qed device information and
affinity to use.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-26 13:04:12 -07:00
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
YueHaibing cc23c66179 scsi: qedf: remove set but not used variables
Fixes gcc '-Wunused-but-set-variable' warnings:

drivers/scsi/qedf/qedf_els.c: In function 'qedf_process_els_compl':
drivers/scsi/qedf/qedf_els.c:149:20: warning: variable 'sc_cmd' set but not used [-Wunused-but-set-variable]
drivers/scsi/qedf/qedf_els.c:148:28: warning: variable 'task_ctx' set but not used [-Wunused-but-set-variable]
drivers/scsi/qedf/qedf_els.c: In function 'qedf_send_srr':
drivers/scsi/qedf/qedf_els.c:612:6: warning: variable 'sid' set but not used [-Wunused-but-set-variable]

They are never used since introduction.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:10 -04:00
Saurav Kashyap b226a893d2 scsi: qedf: Update the driver version to 8.37.25.20
Update the driver version to 8.37.25.20.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:10 -04:00
Saurav Kashyap 1e1ff604a3 scsi: qedf: Add return value to log message if scsi_add_host fails
Print return value of scsi_add_host on failure.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Saurav Kashyap 7fa4142d8b scsi: qedf: Print fcport information on wait for upload timeout
Log fcport for which upload failed.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Saurav Kashyap 19c2b6d84b scsi: qedf: Check the return value of start_xmit
Log the reason for start xmit failure.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Saurav Kashyap 249b148f36 scsi: qedf: Log message if scsi_add_host fails
Print message on scsi_add_host failure.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Saurav Kashyap f4eecabe74 scsi: qedf: Check for fcoe_libfc_config failure
Print the fcoe_libfc_config failure and return proper failure.

Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Saurav Kashyap 8b95b99c1a scsi: qedf: Add comment to display logging levels
Comment will help in decoding the logging level.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Chad Dupuis 50ed27cb93 scsi: qedf: Add port_id for fcport into initiate_cleanup debug message
Port ID will help in debugging.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Chad Dupuis 1c8162479b scsi: qedf: Add LBA to underrun debug messages
Print LBA information for underrun cases.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Chad Dupuis 276eb3e5d0 scsi: qedf: Print scsi_cmd backpointer in good completion path if the command is still being used
Printing scsi command pointer will help in crash dump analysis.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Chad Dupuis 892f63d427 scsi: qedf: Add driver state to 'driver_stats' debugfs node
Add debugfs node for driver stats.

[mkp: typo]

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Chad Dupuis 078d719957 scsi: qedf: Change MSI-X load error message
Change the message to display load failure.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-29 08:34:09 -04:00
Colin Ian King 65b1dc9900 scsi: qedf: remove memset/memcpy to nfunc and use func instead
Currently the qedf_dbg_* family of functions can overrun the end of the
source string if it is less than the destination buffer length because of
the use of a fixed sized memcpy. Remove the memset/memcpy calls to nfunc
and just use func instead as it is always a null terminated string.

Addresses-Coverity: ("Out-of-bounds access")
Fixes: 61d8658b4a ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-18 20:32:26 -04:00
YueHaibing 6087550338 scsi: qedf: Remove set but not used variable 'fr_len'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/qedf/qedf_fip.c: In function 'qedf_fcoe_send_vlan_req':
drivers/scsi/qedf/qedf_fip.c:22:6: warning:
 variable 'fr_len' set but not used [-Wunused-but-set-variable]

It's never used since introduction and can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-04-03 23:45:59 -04:00
Saurav Kashyap fb17358ce8 scsi: qedf: Update the driver version to 8.37.25.19
- Update the driver version.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Saurav Kashyap efc8fe9b6c scsi: qedf: Fix lport may be used uninitialized warning
- lport was getting used without initialization, initialize it to fix a
   warning.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Saurav Kashyap fe2043d19e scsi: qedf: Correctly handle refcounting of rdata
- Handle refcount of rdata during error conditions.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Shyam Sundar faea5719d3 scsi: qedf: Cleanup rrq_work after QEDF_CMD_OUTSTANDING is cleared
Here is the relevant logs for the problem we are solving:

qedf_flush_active_ios:1707]:3: Flush active i/o's num=0x17 fcport=0xffff948168fbcc80 port_id=0x550200 scsi_id=0.
qedf_flush_active_ios:1708]:3: Locking flush mutex.
qedf_flush_active_ios:1758]:3: Not outstanding, xid=0xaaf, cmd_type=3 refcount=1.
qedf_flush_active_ios:1896]:3: Flushed 0x16 I/Os, active=0x1.
qedf_flush_active_ios:1901]:3: Flushed 0x16 I/Os, active=0x1 cnt=60.
qedf_send_rrq:295]:3: Sending RRQ orig io = ffffb48b8f7d7158, orig_xid = 0xaaf
qedf_initiate_els:37]:3: Sending ELS
qedf_initiate_els:68]:3: initiate_els els_req = 0xffffb48b8f6d3098 cb_arg = ffff948fd5e4de80 xid = 4c6
qedf_init_mp_req:2172]:3: Entered.
qedf_init_mp_task:727]:3: Initializing MP task for cmd_type=4
qedf_initiate_els:134]:3: Ringing doorbell for ELS req
qedf_flush_active_ios:1901]:3: Flushed 0x16 I/Os, active=0x2 cnt=20.
qedf_cmd_timeout:96]:3: ELS timeout, xid=0x4c6.
qedf_rrq_compl:186]:3: Entered.
qedf_rrq_compl:204]:3: rrq_compl: orig io = ffffb48b8f7d7158, orig xid = 0xaaf, rrq_xid = 0x4c6, refcount=1
qedf_flush_active_ios:1935]:3: Unlocking flush mutex.
qedf_upload_connection:1579]:3: Uploading connection port_id=550200.

We found an ABTS command for which CMD_OUTSTANDING was cleared (line 3).
For this command, delayed send_rrq was queued, but would take 10 secs to
execute.  Adding capability to detect that (based on io_req->state that is
being introduced), and attempt to cancel rrq_work. If we succeed, we drop
the reference and free the io_req. If we cannot, then the els will get sent
out and we will wait for 10 secs for it to complete.

Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Saurav Kashyap f2c98af4a2 scsi: qedf: Check for tm_flags instead of cmd_type during cleanup
cmd_type is over written to QEDF_CLEANUP during cleanup, so check for
tm_flags.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Shyam Sundar feac47f507 scsi: qedf: Add a flag to help debugging io_req which could not be cleaned
- The flag will help in to figure out if io_req is cleaned or not.

Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Saurav Kashyap 582a47274a scsi: qedf: Don't send ABTS for under run scenario
- Command is already completed with underrun so no need to send ABTS.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Shyam Sundar ff543e2886 scsi: qedf: Don't queue anything if upload is in progress
- I/Os, aborts and tmf should not be queued if flush is in progress.

Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Chad Dupuis fc37ddce93 scsi: qedf: Check both the FCF and fabric ID before servicing clear virtual link
- Check proper values before servicing CVL.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Hannes Reinecke 56efc304b1 scsi: qedf: fc_rport_priv reference counting fixes
The fc_rport_priv structure is reference counted, so we need to ensure that
the reference is increased before accessing the structure.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Chad Dupuis 6f15d0c029 scsi: qedf: Add missing return in qedf_scsi_done()
On completions where we do not have a bad scsi_cmnd pointer we should
return before the the label lest we do a double kref_put.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:53 -04:00
Chad Dupuis a66c6cd2a8 scsi: qedf: Wait for upload and link down processing during soft ctx reset
- Wait for all the connections to get uploaded.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Chad Dupuis 627cc7dd73 scsi: qedf: Add additional checks for io_req->sc_cmd validity
- Check the validity of various pointers before processing.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Hannes Reinecke 78a8ab3cc0 scsi: qedf: fixup bit operations
test_bit() is atomic, test_bit() || test_bit() is not. So protect
consecutive bit tests with a lock to avoid races.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Hannes Reinecke 6d1368e8f9 scsi: qedf: fixup locking in qedf_restart_rport()
fc_rport_create() needs to be called with disc_mutex held.  And we should
re-assign the 'rdata' pointer in case it got changed.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Hannes Reinecke 4262d35c32 scsi: qedf: missing kref_put in qedf_xmit()
qedf_xmit() calls fc_rport_lookup(), but discards the returned rdata
structure almost immediately without decreasing the refcount.  This leads
to a refcount leak and the rdata never to be freed.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Saurav Kashyap 76dbf4ff06 scsi: qedf: Check for link state before processing LL2 packets and send fipvlan retries
- Check if link is UP before sending and processing any packets on wire.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Chad Dupuis 0cbd007539 scsi: qedf: Add missing fc_disc_init call after allocating lport
When receiving an unsolicited frame we could crash on a list traversal in
fc_rport_lookup while searching the rport which is associated with our
lport.

Initialize the lport's discovery node after allocating the lport in
__qedf_probe().

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Andrew Vasquez 90ccf75798 scsi: qedf: Correct the memory barriers in qedf_ring_doorbell
- Correct memory barriers to make sure all cmnds are flushed.

Signed-off-by: Andrew Vasquez <andrewv@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Chad Dupuis 96b1765a09 scsi: qedf: Use a separate completion for cleanup commands
- If a TMF and cleanup are issued at the same time they could cause a call
   trace if issued against the same xid as the io_req->tm_done completion
   is used for both.

 - Set and clear cleanup bit in cleanup routine.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Saurav Kashyap 69ef2c6925 scsi: qedf: Modify abort and tmf handler to handle edge condition and flush
An I/O can be in any state when flush is called, it can be in abort,
waiting for abort, RRQ send and waiting or TMF send.

 - HZ can be different on different architecture, correctly set abort
   timeout value.

 - Flush can complete the I/Os prematurely, handle refcount for aborted
   I/Os and for which RRQ is pending.

 - Differentiate LUN/TARGET reset, as cleanup needs to be send to firmware
   accordingly.

 - Add flush mutex to sync cleanup call from abort and flush routine.

 - Clear abort/outstanding bit on timeout.

Signed-off-by: Shyam Sundar <shyam.sundar@marvell.com>
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Shyam Sundar 5d5e55659b scsi: qedf: Modify flush routine to handle all I/Os and TMF
The purpose of flush routine is to cleanup I/Os to the firmware and
complete them to scsi middle layer. This routine is invoked before
connection is uploaded because of rport going away.

 - Don't process any I/Os, aborts, TMFs coming when flush in progress.

 - Add flags to handle cleanup and release of I/Os because flush can
   prematurely complete I/Os.

 - Original command can get completed to driver when cleanup for same is
   posted to firmware, handle this condition.

 - Modify flush to handle I/Os in all the states like abort, TMF, RRQ and
   timeouts.

Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:52 -04:00
Chad Dupuis 3e2c11b3fb scsi: qedf: Simplify s/g list mapping
When mapping the pages from a scatter/gather list from the SCSI layer we
only need to follow these rules:

 - Max SGEs for each I/O request is 256
 - No size limit on each SGE
 - No need to split OS provided SGEs to 4K before sending to firmware.
 - Slow SGE is applicable only when:
   - There are > 8 SGEs and any middle SGE is less than a page size (4K)

Make necessary changes so that driver follows these rules. Applicable only
for Write requests (not for Read requests). No need to check SGE address
alignment requirements (first, middle or last) before declaring slow SGE.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:51 -04:00
Chad Dupuis c5e06ba2f7 scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload check
Fixes the following crash as the return was missing from the check if an
fcport is offloaded. If we hit this code we continue to try to post an
invalid task which can lead to the crash:

[30259.616411] [0000:61:00.3]:[qedf_post_io_req:989]:3: Session not offloaded yet.
[30259.616413] [0000:61:00.3]:[qedf_upload_connection:1340]:3: Uploading connection port_id=490020.
[30259.623769] BUG: unable to handle kernel NULL pointer dereference at 0000000000000198
[30259.631645] IP: [<ffffffffc035b1ed>] qedf_init_task.isra.16+0x3d/0x450 [qedf]
[30259.638816] PGD 0
[30259.640841] Oops: 0000 [#1] SMP
[30259.644098] Modules linked in: fuse xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter vfat fat ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib ib_ucm ib_umad dm_service_time skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel rpcrdma sunrpc rdma_ucm ib_uverbs lrw gf128mul ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi qedr(OE) glue_helper ablk_helper cryptd ib_core dm_round_robin joydev pcspkr ipmi_ssif ses enclosure ipmi_si ipmi_devintf ipmi_msghandler mei_me
[30259.715529]  mei sg hpilo hpwdt shpchp wmi lpc_ich acpi_power_meter dm_multipath ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic uas usb_storage mgag200 qedf(OE) i2c_algo_bit libfcoe drm_kms_helper libfc syscopyarea sysfillrect scsi_transport_fc qede(OE) sysimgblt fb_sys_fops ptp ttm pps_core drm qed(OE) smartpqi crct10dif_pclmul crct10dif_common crc32c_intel i2c_core scsi_transport_sas scsi_tgt dm_mirror dm_region_hash dm_log dm_mod
[30259.754237] CPU: 9 PID: 977 Comm: kdmwork-253:7 Kdump: loaded Tainted: G        W  OE  ------------   3.10.0-862.el7.x86_64 #1
[30259.765664] Hardware name: HPE Synergy 480 Gen10/Synergy 480 Gen10 Compute Module, BIOS I42 04/04/2018
[30259.775000] task: ffff8c801efd0000 ti: ffff8c801efd8000 task.ti: ffff8c801efd8000
[30259.782505] RIP: 0010:[<ffffffffc035b1ed>]  [<ffffffffc035b1ed>] qedf_init_task.isra.16+0x3d/0x450 [qedf]
[30259.792116] RSP: 0018:ffff8c801efdbbb0  EFLAGS: 00010046
[30259.797444] RAX: 0000000000000000 RBX: ffffa7f1450948d8 RCX: ffff8c7fe5bc40c8
[30259.804600] RDX: ffff8c800715b300 RSI: ffffa7f1450948d8 RDI: ffff8c80169c2480
[30259.811755] RBP: ffff8c801efdbc30 R08: 00000000000000ae R09: ffff8c800a314540
[30259.818911] R10: ffff8c7fe5bc40c8 R11: ffff8c801efdb8ae R12: 0000000000000000
[30259.826068] R13: ffff8c800715b300 R14: ffff8c80169c2480 R15: ffff8c8005da28e0
[30259.833223] FS:  0000000000000000(0000) GS:ffff8c803f840000(0000) knlGS:0000000000000000
[30259.841338] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[30259.847100] CR2: 0000000000000198 CR3: 000000081242e000 CR4: 00000000007607e0
[30259.854256] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[30259.861412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[30259.868568] PKRU: 00000000
[30259.871278] Call Trace:
[30259.873737]  [<ffffffffc035c948>] qedf_post_io_req+0x148/0x680 [qedf]
[30259.880201]  [<ffffffffc035d070>] qedf_queuecommand+0x1f0/0x240 [qedf]
[30259.886749]  [<ffffffffa329b050>] scsi_dispatch_cmd+0xb0/0x240
[30259.892600]  [<ffffffffa32a45bc>] scsi_request_fn+0x4cc/0x680
[30259.898364]  [<ffffffffa3118ad9>] __blk_run_queue+0x39/0x50
[30259.903954]  [<ffffffffa3114393>] __elv_add_request+0xd3/0x260
[30259.909805]  [<ffffffffa311baf0>] blk_insert_cloned_request+0xf0/0x1b0
[30259.916358]  [<ffffffffc010b622>] map_request+0x142/0x220 [dm_mod]
[30259.922560]  [<ffffffffc010b716>] map_tio_request+0x16/0x40 [dm_mod]
[30259.928932]  [<ffffffffa2ebb1f5>] kthread_worker_fn+0x85/0x180
[30259.934782]  [<ffffffffa2ebb170>] ? kthread_stop+0xf0/0xf0
[30259.940284]  [<ffffffffa2ebae31>] kthread+0xd1/0xe0
[30259.945176]  [<ffffffffa2ebad60>] ? insert_kthread_work+0x40/0x40
[30259.951290]  [<ffffffffa351f61d>] ret_from_fork_nospec_begin+0x7/0x21
[30259.957750]  [<ffffffffa2ebad60>] ? insert_kthread_work+0x40/0x40
[30259.963860] Code: fe 41 55 49 89 d5 41 54 53 48 89 f3 48 83 ec 58 4c 8b 67 28 4c 8b 4e 18 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 4c 8b 7e 58 <49> 8b 84 24 98 01 00 00 48 8b 00 f6 80 31 01 00 00 10 0f 85 0b
[30259.983372] RIP  [<ffffffffc035b1ed>] qedf_init_task.isra.16+0x3d/0x450 [qedf]
[30259.990630]  RSP <ffff8c801efdbbb0>
[30259.994127] CR2: 0000000000000198

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:51 -04:00
Chad Dupuis 650ce64c9e scsi: qedf: Correct xid range overlap between offloaded requests and libfc requests
There is currently an overlap where exchange IDs between what is used for
offloaded commands and by libfc for ELS commands.  Correct this so that
exchange ID range is:

Offloaded requests: 0 to 0xfff
libfc requests: 0x1000 to 0xfffe

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:51 -04:00
Chad Dupuis f1c4359036 scsi: qedf: Do not retry ELS request if qedf_alloc_cmd fails
If we cannot allocate an ELS middlepath request, simply fail instead of
trying to delay and then reallocate.  This delay logic is causing soft
lockup messages:

NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [kworker/2:1:7639]
Modules linked in: xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun devlink ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter dm_service_time vfat fat rpcrdma sunrpc ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm sb_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm
irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support qedr(OE) ib_core joydev ipmi_ssif pcspkr hpilo hpwdt sg ipmi_si ipmi_devintf ipmi_msghandler ioatdma shpchp lpc_ich wmi dca acpi_power_meter dm_multipath ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic qedf(OE) libfcoe mgag200 libfc i2c_algo_bit drm_kms_helper scsi_transport_fc qede(OE) syscopyarea sysfillrect sysimgblt fb_sys_fops ttm qed(OE) drm crct10dif_pclmul e1000e crct10dif_common crc32c_intel scsi_tgt hpsa i2c_core ptp scsi_transport_sas pps_core dm_mirror dm_region_hash dm_log dm_mod
CPU: 2 PID: 7639 Comm: kworker/2:1 Kdump: loaded Tainted: G           OEL ------------   3.10.0-861.el7.x86_64 #1
Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 07/21/2016
Workqueue: qedf_2_dpc qedf_handle_rrq [qedf]
task: ffff959edd628fd0 ti: ffff959ed6f08000 task.ti: ffff959ed6f08000
RIP: 0010:[<ffffffff8355913a>]  [<ffffffff8355913a>] delay_tsc+0x3a/0x60
RSP: 0018:ffff959ed6f0bd30  EFLAGS: 00000246
RAX: 000000008ef5f791 RBX: 5f646d635f666465 RCX: 0000025b8ededa2f
RDX: 000000000000025b RSI: 0000000000000002 RDI: 0000000000217d1e
RBP: ffff959ed6f0bd30 R08: ffffffffc079aae8 R09: 0000000000000200
R10: ffffffffc07952c6 R11: 0000000000000000 R12: 6c6c615f66646571
R13: ffff959ed6f0bcc8 R14: ffff959ed6f0bd08 R15: ffff959e00000028
FS:  0000000000000000(0000) GS:ffff959eff480000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4117fa1eb0 CR3: 0000002039e66000 CR4: 00000000003607e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
[<ffffffff8355907d>] __const_udelay+0x2d/0x30
[<ffffffffc079444a>] qedf_initiate_els+0x13a/0x450 [qedf]
[<ffffffffc0794210>] ? qedf_srr_compl+0x2a0/0x2a0 [qedf]
[<ffffffffc0795337>] qedf_send_rrq+0x127/0x230 [qedf]
[<ffffffffc078ed55>] qedf_handle_rrq+0x15/0x20 [qedf]
[<ffffffff832b2dff>] process_one_work+0x17f/0x440
[<ffffffff832b3ac6>] worker_thread+0x126/0x3c0
[<ffffffff832b39a0>] ? manage_workers.isra.24+0x2a0/0x2a0
[<ffffffff832bae31>] kthread+0xd1/0xe0
[<ffffffff832bad60>] ? insert_kthread_work+0x40/0x40
[<ffffffff8391f637>] ret_from_fork_nospec_begin+0x21/0x21
[<ffffffff832bad60>] ? insert_kthread_work+0x40/0x40

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-27 21:54:51 -04:00
Linus Torvalds 92fff53b71 SCSI misc on 20190306
This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
 hisi_sas, target/iscsi and target/core.  Additionally Christoph
 refactored gdth as part of the dma changes.  The major mid-layer
 change this time is the removal of bidi commands and with them the
 whole of the osd/exofs driver and filesystem.
 
 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 is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc,
  hisi_sas, target/iscsi and target/core.

  Additionally Christoph refactored gdth as part of the dma changes. The
  major mid-layer change this time is the removal of bidi commands and
  with them the whole of the osd/exofs driver and filesystem. This is a
  major simplification for block and mq in particular"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits)
  scsi: cxgb4i: validate tcp sequence number only if chip version <= T5
  scsi: cxgb4i: get pf number from lldi->pf
  scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
  scsi: mpt3sas: Add missing breaks in switch statements
  scsi: aacraid: Fix missing break in switch statement
  scsi: kill command serial number
  scsi: csiostor: drop serial_number usage
  scsi: mvumi: use request tag instead of serial_number
  scsi: dpt_i2o: remove serial number usage
  scsi: st: osst: Remove negative constant left-shifts
  scsi: ufs-bsg: Allow reading descriptors
  scsi: ufs: Allow reading descriptor via raw upiu
  scsi: ufs-bsg: Change the calling convention for write descriptor
  scsi: ufs: Remove unused device quirks
  Revert "scsi: ufs: disable vccq if it's not needed by UFS device"
  scsi: megaraid_sas: Remove a bunch of set but not used variables
  scsi: clean obsolete return values of eh_timed_out
  scsi: sd: Optimal I/O size should be a multiple of physical block size
  scsi: MAINTAINERS: SCSI initiator and target tweaks
  scsi: fcoe: make use of fip_mode enum complete
  ...
2019-03-09 16:53:47 -08:00
Sedat Dilek 8beb90aaf3 scsi: fcoe: make use of fip_mode enum complete
commit 1917d42d14 ("fcoe: use enum for fip_mode") introduces a separate
enum for the fip_mode that shall be used during initialisation handling
until it is passed to fcoe_ctrl_link_up to set the initial fip_state.  That
change was incomplete and gcc quietly converted in various places between
the fip_mode and the fip_state enum values with implicit enum conversions,
which fortunately cannot cause any issues in the actual code's execution.

clang however warns about these implicit enum conversions in the scsi
drivers. This commit consolidates the use of the two enums, guided by
clang's enum-conversion warnings.

This commit now completes the use of the fip_mode: It expects and uses
fip_mode in {bnx2fc,fcoe}_interface_create and fcoe_ctlr_init, and it calls
fcoe_ctrl_set_set() with the correct values in fcoe_ctlr_link_up().  It
also breaks the association between FIP_MODE_AUTO and FIP_ST_AUTO to
indicate these two enums are distinct.

Link: https://github.com/ClangBuiltLinux/linux/issues/151
Fixes: 1917d42d14 ("fcoe: use enum for fip_mode")
Reported-by: Dmitry Golovin <dima@golovin.in>
Original-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
CC: Lukas Bulwahn <lukas.bulwahn@gmail.com>
CC: Nick Desaulniers <ndesaulniers@google.com>
CC: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Suggested-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-19 18:58:38 -05:00
Christoph Hellwig b9f9199299 scsi: stop setting up request->special
No more need in a blk-mq world where the scsi command and request are
allocated together.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-05 21:29:49 -05:00
Greg Kroah-Hartman 26febfb38c scsi: qedf: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the return
value.  The function can work or not, but the code logic should never do
something different based on this.

Cc: QLogic-Storage-Upstream@cavium.com
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 00:40:54 -05:00
Luis Chamberlain 750afb08ca cross-tree: phase out dma_zalloc_coherent()
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-08 07:58:37 -05:00
Christoph Hellwig 2a3d4eb8e2 scsi: flip the default on use_clustering
Most SCSI drivers want to enable "clustering", that is merging of
segments so that they might span more than a single page.  Remove the
ENABLE_CLUSTERING define, and require drivers to explicitly set
DISABLE_CLUSTERING to disable this feature.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-18 23:13:12 -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
Christoph Hellwig 332d84f7f6 scsi: qedf: fully convert to the generic DMA API
The driver is currently using an odd mix of legacy PCI DMA API and
generic DMA API calls, switch it over to the generic API entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17 21:58:53 -04:00
Saurav Kashyap 6ac174756d scsi: qedf: Send the driver state to MFW
Need to notify firmware when driver is loaded and unloaded.

Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10 22:25:23 -04:00
Linus Torvalds 5f85942c2e SCSI misc on 20180610
This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
 xfcp, hisi_sas, cxlflash, qla2xxx.  In the absence of Nic, we're also
 taking target updates which are mostly minor except for the tcmu
 refactor. The only real core change to worry about is the removal of
 high page bouncing (in sas, storvsc and iscsi).  This has been well
 tested and no problems have shown up so far.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
  xfcp, hisi_sas, cxlflash, qla2xxx.

  In the absence of Nic, we're also taking target updates which are
  mostly minor except for the tcmu refactor.

  The only real core change to worry about is the removal of high page
  bouncing (in sas, storvsc and iscsi). This has been well tested and no
  problems have shown up so far"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits)
  scsi: lpfc: update driver version to 12.0.0.4
  scsi: lpfc: Fix port initialization failure.
  scsi: lpfc: Fix 16gb hbas failing cq create.
  scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc
  scsi: lpfc: correct oversubscription of nvme io requests for an adapter
  scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx)
  scsi: hisi_sas: Mark PHY as in reset for nexus reset
  scsi: hisi_sas: Fix return value when get_free_slot() failed
  scsi: hisi_sas: Terminate STP reject quickly for v2 hw
  scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command
  scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot
  scsi: hisi_sas: Try wait commands before before controller reset
  scsi: hisi_sas: Init disks after controller reset
  scsi: hisi_sas: Create a scsi_host_template per HW module
  scsi: hisi_sas: Reset disks when discovered
  scsi: hisi_sas: Add LED feature for v3 hw
  scsi: hisi_sas: Change common allocation mode of device id
  scsi: hisi_sas: change slot index allocation mode
  scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate()
  scsi: hisi_sas: fix a typo in hisi_sas_task_prep()
  ...
2018-06-10 13:01:12 -07:00
Chad Dupuis 8673daf4f5 qedf: Add get_generic_tlv_data handler.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Chad Dupuis 642a0b37e6 qedf: Add support for populating ethernet TLVs.
This patch adds callbacks for providing the ethernet protocol driver TLVs.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Chad Dupuis ab7ad49d01 scsi: qedf: Update version number to 8.33.16.20
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00