Commit Graph

175 Commits

Author SHA1 Message Date
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