Commit Graph

712 Commits

Author SHA1 Message Date
Linus Torvalds 06caa75154 SCSI misc on 20230303
Updates that missed the first pull, mostly because of needing more
 soak time.  Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug
 fixes), an enclosure services (ses) update (mostly bug fixes) and
 other minor bug fixes and changes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "Updates that missed the first pull, mostly because of needing more
  soak time.

  Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug fixes), an
  enclosure services (ses) update (mostly bug fixes) and other minor bug
  fixes and changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits)
  scsi: zfcp: Trace when request remove fails after qdio send fails
  scsi: zfcp: Change the type of all fsf request id fields and variables to u64
  scsi: zfcp: Make the type for accessing request hashtable buckets size_t
  scsi: ufs: core: Simplify ufshcd_execute_start_stop()
  scsi: ufs: core: Rely on the block layer for setting RQF_PM
  scsi: core: Extend struct scsi_exec_args
  scsi: lpfc: Fix double word in comments
  scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
  scsi: core: Fix a source code comment
  scsi: cxgbi: Remove unneeded version.h include
  scsi: qedi: Remove unneeded version.h include
  scsi: mpi3mr: Remove unneeded version.h include
  scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization
  scsi: mpi3mr: Use number of bits to manage bitmap sizes
  scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi
  scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()
  scsi: mpi3mr: Fix an issue found by KASAN
  scsi: mpi3mr: Replace 1-element array with flex-array
  scsi: ipr: Work around fortify-string warning
  scsi: ipr: Make ipr_probe_ioa_part2() return void
  ...
2023-03-03 14:41:50 -08:00
Linus Torvalds 8762069330 SCSI misc on 20230222
Updates to the usual drivers (ufs, lpfc, qla2xxx, libsas).  The major
 core change is a rework to remove the two helpers around
 scsi_execute_cmd and use it as the only submission interface along
 with other minor fixes and updates.
 
 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:
 "Updates to the usual drivers (ufs, lpfc, qla2xxx, libsas).

  The major core change is a rework to remove the two helpers around
  scsi_execute_cmd and use it as the only submission interface along
  with other minor fixes and updates"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (142 commits)
  scsi: ufs: core: Fix an error handling path in ufshcd_read_desc_param()
  scsi: ufs: core: Fix device management cmd timeout flow
  scsi: aic94xx: Add missing check for dma_map_single()
  scsi: smartpqi: Replace one-element array with flexible-array member
  scsi: mpt3sas: Fix a memory leak
  scsi: qla2xxx: Remove the unused variable wwn
  scsi: ufs: core: Fix kernel-doc syntax
  scsi: ufs: core: Add hibernation callbacks
  scsi: snic: Fix memory leak with using debugfs_lookup()
  scsi: ufs: core: Limit DMA alignment check
  scsi: Documentation: Correct spelling
  scsi: Documentation: Correct spelling
  scsi: target: Documentation: Correct spelling
  scsi: aacraid: Allocate cmd_priv with scsicmd
  scsi: ufs: qcom: dt-bindings: Add SM8550 compatible string
  scsi: ufs: ufs-qcom: Clear qunipro_g4_sel for HW version major 5
  scsi: ufs: qcom: fix platform_msi_domain_free_irqs() reference
  scsi: ufs: core: Enable DMA clustering
  scsi: ufs: exynos: Fix the maximum segment size
  scsi: ufs: exynos: Fix DMA alignment for PAGE_SIZE != 4096
  ...
2023-02-22 13:41:41 -08:00
Bo Liu 442336a5a9 scsi: lpfc: Fix double word in comments
Remove the repeated word "the" in comments.

[mkp: fixed additional typos in the changed lines]

Link: https://lore.kernel.org/r/20230217083046.4090-1-liubo03@inspur.com
Signed-off-by: Bo Liu <liubo03@inspur.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-02-21 22:00:51 -05:00
Jakub Kicinski 2870c4d6a5 net: add missing includes of linux/sched/clock.h
Number of files depend on linux/sched/clock.h getting included
by linux/skbuff.h which soon will no longer be the case.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-27 11:19:46 +00:00
Justin Tee 191b5a3877 scsi: lpfc: Copyright updates for 14.2.0.10 patches
Update copyrights to 2023 for files modified in the 14.2.0.10 patch set.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-01-12 00:03:15 -05:00
Justin Tee 96fb8c34e5 scsi: lpfc: Introduce new attention types for lpfc_sli4_async_fc_evt() handler
Define new FC Link ACQE with new attention types 0x8 (Link Activation
Failure) and 0x9 (Link Reset Protocol Event).

Both attention types are meant to be informational-only type ACQEs with no
action required.

0x8 is reported for diagnostic purposes, while 0x9 is posted during a
normal link up transition when activating BB Credit Recovery feature.

As such, modify lpfc_sli4_async_fc_evt() logic to log the attention types
according to its severity and early return when informational-only
attention types are encountered.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-01-12 00:03:15 -05:00
Justin Tee b5c894cf43 scsi: lpfc: Set max DMA segment size to HBA supported SGE length
During I/O, the following warning message occasionally appears:

DMA-API: lpfc 0000:04:00.0: mapping sg segment longer than device claims to
support [len=131072] [max=65536]

The HBA is capable of supporting 131,072 bytes, so notify DMA layer via the
dma_set_max_seg_size() API during hba initialization.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-01-12 00:03:14 -05:00
Linus Torvalds aa5ad10f6c SCSI misc on 20221213
Updates to the usual drivers (target, ufs, smartpqi, lpfc).  There are
 some core changes, mostly around reworking some of our user context
 assumptions in device put and moving some code around.  The remaining
 updates are bug fixes and minor changes.
 
 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:
 "Updates to the usual drivers (target, ufs, smartpqi, lpfc).

  There are some core changes, mostly around reworking some of our user
  context assumptions in device put and moving some code around.

  The remaining updates are bug fixes and minor changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits)
  scsi: sg: Fix get_user() in call sg_scsi_ioctl()
  scsi: megaraid_sas: Fix some spelling mistakes in comment
  scsi: core: Use SCSI_SCAN_INITIAL in do_scsi_scan_host()
  scsi: core: Use SCSI_SCAN_RESCAN in __scsi_add_device()
  scsi: ufs: ufs-mediatek: Remove unnecessary return code
  scsi: ufs: core: Fix the polling implementation
  scsi: libsas: Do not export sas_ata_wait_after_reset()
  scsi: hisi_sas: Fix SATA devices missing issue during I_T nexus reset
  scsi: libsas: Add smp_ata_check_ready_type()
  scsi: Revert "scsi: hisi_sas: Don't send bcast events from HW during nexus HA reset"
  scsi: Revert "scsi: hisi_sas: Drain bcast events in hisi_sas_rescan_topology()"
  scsi: ufs: ufs-mediatek: Modify the return value
  scsi: ufs: ufs-mediatek: Remove unneeded code
  scsi: device_handler: alua: Call scsi_device_put() from non-atomic context
  scsi: device_handler: alua: Revert "Move a scsi_device_put() call out of alua_check_vpd()"
  scsi: snic: Fix possible UAF in snic_tgt_create()
  scsi: qla2xxx: Initialize vha->unknown_atio_[list, work] for NPIV hosts
  scsi: qla2xxx: Remove duplicate of vha->iocb_work initialization
  scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails
  scsi: sd: Use 16-byte SYNCHRONIZE CACHE on ZBC devices
  ...
2022-12-14 08:58:51 -08:00
Thomas Gleixner cdd9344e00 scsi: lpfc: Remove linux/msi.h include
Nothing in this file needs anything from linux/msi.h

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20221113202428.436270297@linutronix.de
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-24 02:16:19 +00:00
Justin Tee d99af587d5 scsi: lpfc: Fix MI capability display in cmf_info sysfs attribute
The dynamic mi_ver value holds the currently configured MI setting.  mi_ver
was being displayed as part of the cmf_info sysfs attribute, when the
output string meant to display MI capabilities instead.

Add a mi_cap member in the lpfc_pc_sli4_params structure that will store MI
capabilities during initialization so that cmf_info prints out capabilities
instead of current configuration.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20221116011921.105995-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-17 18:18:42 +00:00
Justin Tee 2c1a0a7584 scsi: lpfc: Fix WQ|CQ|EQ resource check
Adapter configurations with limited EQ resources may fail to initialize.

Firmware resources are queried in lpfc_sli4_read_config().  The driver
parameters cfg_irq_chann and cfg_hdw_queue are adjusted from defaults if
constrained by firmware resources.

The minimum resource check includes a special allocation for queues such as
ELS, MBOX, NVME LS. However the additional reservation was also incorrectly
applied to EQ resources.

Reordered WQ|CQ|EQ resource checks to apply the special allocation
adjustment to WQ and CQ resources only.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20221116011921.105995-2-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-17 18:18:42 +00:00
Rafael Mendonca dc8e483f68 scsi: lpfc: Fix memory leak in lpfc_create_port()
Commit 5e633302ac ("scsi: lpfc: vmid: Add support for VMID in mailbox
command") introduced allocations for the VMID resources in
lpfc_create_port() after the call to scsi_host_alloc(). Upon failure on the
VMID allocations, the new code would branch to the 'out' label, which
returns NULL without unwinding anything, thus skipping the call to
scsi_host_put().

Fix the problem by creating a separate label 'out_free_vmid' to unwind the
VMID resources and make the 'out_put_shost' label call only
scsi_host_put(), as was done before the introduction of allocations for
VMID.

Fixes: 5e633302ac ("scsi: lpfc: vmid: Add support for VMID in mailbox command")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Link: https://lore.kernel.org/r/20220916035908.712799-1-rafaelmendsr@gmail.com
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-18 02:42:08 +00:00
Linus Torvalds 62e6e5940c SCSI misc on 20221007
Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr,
 mpt3sas, target); the biggest change (from my biased viewpoint) being
 that the mpi3mr now attached to the SAS transport class, making it the
 first fusion type device to do so.  Beyond the usual bug fixing and
 security class reworks, there aren't a huge number of core changes.
 
 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:
 "Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr,
  mpt3sas, target). The biggest change (from my biased viewpoint) being
  that the mpi3mr now attached to the SAS transport class, making it the
  first fusion type device to do so.

  Beyond the usual bug fixing and security class reworks, there aren't a
  huge number of core changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits)
  scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()
  scsi: mpi3mr: Remove unnecessary cast
  scsi: stex: Properly zero out the passthrough command structure
  scsi: mpi3mr: Update driver version to 8.2.0.3.0
  scsi: mpi3mr: Fix scheduling while atomic type bug
  scsi: mpi3mr: Scan the devices during resume time
  scsi: mpi3mr: Free enclosure objects during driver unload
  scsi: mpi3mr: Handle 0xF003 Fault Code
  scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA
  scsi: mpi3mr: Schedule IRQ kthreads only on non-RT kernels
  scsi: mpi3mr: Support new power management framework
  scsi: mpi3mr: Update mpi3 header files
  scsi: mpt3sas: Revert "scsi: mpt3sas: Fix ioc->base_readl() use"
  scsi: mpt3sas: Revert "scsi: mpt3sas: Fix writel() use"
  scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO
  scsi: core: Add I/O timeout count for SCSI device
  scsi: qedf: Populate sysfs attributes for vport
  scsi: pm8001: Replace one-element array with flexible-array member
  scsi: 3w-xxxx: Replace one-element array with flexible-array member
  scsi: hptiop: Replace one-element array with flexible-array member in struct hpt_iop_request_ioctl_command()
  ...
2022-10-07 12:33:18 -07:00
James Smart a4de8356b6 scsi: lpfc: Fix various issues reported by tools
This patch fixes below Smatch reported issues:

 1. lpfc_hbadisc.c:3020 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec()
    error: uninitialized symbol 'vlan_id'.

 2. lpfc_hbadisc.c:3121 lpfc_mbx_cmpl_read_fcf_rec()
    error: uninitialized symbol 'vlan_id'.

 3. lpfc_init.c:335 lpfc_dump_wakeup_param_cmpl()
    warn: always true condition '(prg->dist < 4) => (0-3 < 4)'

 4. lpfc_init.c:2419 lpfc_parse_vpd()
    warn: inconsistent indenting.

 5. lpfc_init.c:13248 lpfc_sli4_enable_msi()
    warn: 'phba->pcidev->irq' 2147483648 can't fit into 65535
    'eqhdl->irq'

 6. lpfc_debugfs.c:5300 lpfc_idiag_extacc_avail_get()
    error: uninitialized symbol 'ext_cnt'

 7. lpfc_debugfs.c:5300 lpfc_idiag_extacc_avail_get()
    error: uninitialized symbol 'ext_size'

 8. lpfc_vmid.c:248 lpfc_vmid_get_appid()
    warn: sleeping in atomic context.

 9. lpfc_init.c:8342 lpfc_sli4_driver_resource_setup()
    warn: missing error code 'rc'.

10. lpfc_init.c:13573 lpfc_sli4_hba_unset()
    warn: variable dereferenced before check 'phba->pport' (see
    line 13546)

11. lpfc_auth.c:1923 lpfc_auth_handle_dhchap_reply()
    error: double free of 'hash_value'

Fixes:

 1. Initialize vlan_id to LPFC_FCOE_NULL_VID.

 2. Initialize vlan_id to LPFC_FCOE_NULL_VID.

 3. prg->dist is a 2 bit field. Its value can only be between 0-3.
    Remove redundent check 'if (prg->dist < 4)'.

 4. Fix inconsistent indenting.  Moved logic into helper function
    lpfc_fill_vpd().

 5. Define 'eqhdl->irq' as int value as pci_irq_vector() returns int.
    Also, check for return value of pci_irq_vector() and log message in
    case of failure.

 6. Initialize 'ext_cnt' to 0.

 7. Initialize 'ext_size' to 0.

 8. Use alloc_percpu_gfp() with GFP_ATOMIC flag.

 9. 'rc' was not updated when dma_pool_create() fails.  Update 'rc =
     -ENOMEM' when dma_pool_create() fails before calling goto statement.

10. Add check for 'phba->pport' in lpfc_cpuhp_remove().

11. Initialize 'hash_value' to NULL, same like 'aug_chal' variable.

Link: https://lore.kernel.org/r/20220911221505.117655-13-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15 22:18:28 -04:00
James Smart dbb1e2ff87 scsi: lpfc: Add reporting capability for Link Degrade Signaling
Firmware reports link degrade signaling via ACQES.

Handlers and new additions to the SET_FEATURES mbox command are implemented
so that link degrade parameters for 64GB capable links are reported through
EDC ELS frames.

Link: https://lore.kernel.org/r/20220911221505.117655-12-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15 22:18:27 -04:00
James Smart 21828e3c91 scsi: lpfc: Update congestion mode logging for Emulex SAN Manager application
If there is a congestion or automated congestion response mode change, then
log the reported change to kmsg.

Link: https://lore.kernel.org/r/20220911221505.117655-8-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15 22:18:27 -04:00
James Smart 6e5c5d246e scsi: lpfc: Move scsi_host_template outside dynamically allocated/freed phba
On a PCI hotplug capable system, it is possible for scsi_device_put() to
happen after lpfc_pci_remove_one() is called.  As a result, the
sdev->host->hostt->module dereference is for a previously freed memory
location because the phba structure containing the hostt template was
already freed when lpfc_pci_remove_one() returned.

Since the lpfc module is still loaded during power slot disable, all
scsi_host_templates should be declared as part of the global data segment
instead of inside the heap allocated phba structure.  This way the
sdev->host->hostt memory area is always valid as long as the module is
loaded regardless if PCI hotplug dynamically allocates or frees phba
structures.

Move all scsi_host_templates in the phba structure to global variables.
Create a small helper routine to determine appropriate sg_tablesize during
shost allocation.

Link: https://lore.kernel.org/r/20220911221505.117655-7-jsmart2021@gmail.com
Co-developed-by: Dwip N. Banerjee <dnbanerg@us.ibm.com>
Signed-off-by: Dwip N. Banerjee <dnbanerg@us.ibm.com>
Co-developed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-15 22:18:27 -04:00
Yang Yingliang da6d507f5f scsi: lpfc: Add missing destroy_workqueue() in error path
Add the missing destroy_workqueue() before return from
lpfc_sli4_driver_resource_setup() in the error path.

Link: https://lore.kernel.org/r/20220823044237.285643-1-yangyingliang@huawei.com
Fixes: 3cee98db26 ("scsi: lpfc: Fix crash on driver unload in wq free")
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-09-01 01:02:10 -04:00
James Smart bd269188ea scsi: lpfc: Rework MIB Rx Monitor debug info logic
The kernel test robot reported the following sparse warning:

arch/arm64/include/asm/cmpxchg.h:88:1: sparse: sparse: cast truncates
   bits from constant value (369 becomes 69)

On arm64, atomic_xchg only works on 8-bit byte fields.  Thus, the macro
usage of LPFC_RXMONITOR_TABLE_IN_USE can be unintentionally truncated
leading to all logic involving the LPFC_RXMONITOR_TABLE_IN_USE macro to not
work properly.

Replace the Rx Table atomic_t indexing logic with a new
lpfc_rx_info_monitor structure that holds a circular ring buffer.  For
locking semantics, a spinlock_t is used.

Link: https://lore.kernel.org/r/20220819011736.14141-4-jsmart2021@gmail.com
Fixes: 17b27ac592 ("scsi: lpfc: Add rx monitoring statistics")
Cc: <stable@vger.kernel.org> # v5.15+
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-31 23:39:58 -04:00
William Dean f00e0d7714 scsi: lpfc: Check the return value of alloc_workqueue()
The function alloc_workqueue() in lpfc_sli4_driver_resource_setup() can
fail, but there is no check of its return value. The return value should be
checked.

Link: https://lore.kernel.org/r/20220723064027.2956623-1-williamsukatube@163.com
Fixes: 3cee98db26 ("scsi: lpfc: Fix crash on driver unload in wq free")
Reported-by: Hacash Robot <hacashRobot@santino.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: William Dean <williamsukatube@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-01 19:25:06 -04:00
James Smart 7f86d2b847 scsi: lpfc: Remove Menlo/Hornet related code
The Menlo/Hornet adapter was never released to the field. As such, driver
code specific to the adapter is unnecessary and should be removed.

Link: https://lore.kernel.org/r/20220701211425.2708-11-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07 17:21:44 -04:00
James Smart 43e19a96a7 scsi: lpfc: Fix attempted FA-PWWN usage after feature disable
Disabling FA-PWWN should be effective after port reset, but in some cases
it was found to be impossible to clear FA-PWWN usage without a driver
reload.

Clean up FA-PWWN flag management to make enable and disable of the feature
more robust.

Link: https://lore.kernel.org/r/20220701211425.2708-7-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07 17:21:43 -04:00
James Smart e27f05147b scsi: lpfc: Resolve some cleanup issues following SLI path refactoring
Following refactoring and consolidation in SLI processing, fix up some
minor issues related to SLI path:

 - Correct the setting of LPFC_EXCHANGE_BUSY flag in response IOCB.

 - Fix some typographical errors.

 - Fix duplicate log messages.

Link: https://lore.kernel.org/r/20220603174329.63777-4-jsmart2021@gmail.com
Fixes: 1b64aa9eae ("scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4")
Cc: <stable@vger.kernel.org> # v5.18
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-07 21:38:17 -04:00
Bradley Grove a5b168efba scsi: lpfc: Add support for ATTO Fibre Channel devices
Update pci_device_id table and generate reporting strings for ATTO Celerity
and ThunderLink Fibre Channel devices.

Link: https://lore.kernel.org/r/20220524125621.47102-1-bgrove@attotech.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Co-developed-by: Jason Seba <jseba@attotech.com>
Signed-off-by: Jason Seba <jseba@attotech.com>
Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-01 22:40:59 -04:00
James Smart e6f5104145 scsi: lpfc: Alter FPIN stat accounting logic
When configuring CMF management based on signals instead of FPINs, FPIN
alarm and warning statistics are not tracked.

Change the behavior so that FPIN alarms and warnings are always tracked
regardless of the configured mode.

Similar changes are made in the CMF signal stat accounting logic.  Upon
receipt of a signal, only track signaled alarms and warnings. FPIN stats
should not be incremented upon receipt of a signal.

Link: https://lore.kernel.org/r/20220506035519.50908-11-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-10 22:12:04 -04:00
James Smart de3ec318fe scsi: lpfc: Rework FDMI initialization after link up
After a link up, it's possible for the switch to change FDMI support (e.g.
FDMI1 vs FDMI2 vs SmartSAN).  If the switch reverts to FDMI1, then the
revert is currently not detected.

Additionally, when NPIV is configured, it's possible the physical port's
RHBA is unprocessed by the switch before reciept of an NPIV port issued
RPRT.  This causes some switches vendors to reject the NPIV's RPRT.

Fix by reinitializing base FDMI mode on link up, and defer FDMI vport RPRT
submission until after confirming physical port's RHBA is completed.

Link: https://lore.kernel.org/r/20220506035519.50908-10-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-10 22:12:04 -04:00
James Smart 1b6f71f7fc scsi: lpfc: Change FA-PWWN detection methodology
Do not rely on vendor version field of the CSPs to determine if we are in a
FA-PWWN environment. Instead, use the following procedure:

First, during HBA initialization, driver does a READ_CONFIG to determine if
FA-PWWN is configured on the HBA. A LPFC_FAWWPN_CONFIG hba_flag is set
accordingly.

Next, when the link comes up before the driver gets a link up event, the
firmware logs into the fabric with FA-PWWN. If the fabric port does not
support FA-PWWN, the driver will get a Misconfigured FA-WWN async event
before the link up. A LPFC_FAWWPN_FABRIC hba_flag will be set accordingly.

Finally, if the fabric supports FA-PWWN, the firmware will replace its CSPs
WWN with the Fabric Assigned ones. Then after link up, the driver will
retrieve the Fabric Assigned WWN when it does a READ_SPARAM mbox command.

Link: https://lore.kernel.org/r/20220412222008.126521-23-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:47 -04:00
James Smart ef47575fd9 scsi: lpfc: Refactor cleanup of mailbox commands
The intention of this patch is to refactor mailbox memory allocation and
cleanup steps in one routine respectively to prevent memory leaks or memory
errors related to mailbox commands.  There are trivial localized fixes as
well.

Provide lpfc_mbox_rsrc_prep() - this routine allocates the dmabuf and the
mbuf associated with it.  It also catches allocation errors and returns
status.

Provide lpfc_mbox_rsrc_cleanup() - this routine verifies a dmabuf exists
and if so releases the associated mbuf and the dmabuf memory.  It then sets
the ctx_buf to NULL and releases the mailbox memory to the mailbox pool.

Link: https://lore.kernel.org/r/20220412222008.126521-22-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:47 -04:00
James Smart d51cf5bd92 scsi: lpfc: Fix field overload in lpfc_iocbq data structure
The lpfc_iocbq data structure has void * pointers that are overloaded to be
as many as 8 different data types and the driver translates the void * by
casting.  This patch removes the void * pointers by declaring the specific
types needed by the driver.  It also expands the context_un to include more
seldom used pointer types to save structure bytes.  It also groups the u8
types together to pack the 8 bytes needed.  This work allows the lpfc_iocbq
data structure to be more strongly typed and keeps it from being allocated
from the 512 byte slab.

[mkp: rolled in zeroday fix]

Link: https://lore.kernel.org/r/20220412222008.126521-21-jsmart2021@gmail.com
Reported-by: kernel test robot <lkp@intel.com>
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:46 -04:00
James Smart 5295d19d4f scsi: lpfc: Correct CRC32 calculation for congestion stats
lpfc_cgn_calc_crc32() is returning 32 bits, and lpfc_cgn_update_stat() was
using u16 to store the crc32 value.  Correct by redeclaring the local
variable to u32.

Link: https://lore.kernel.org/r/20220412222008.126521-15-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:45 -04:00
James Smart 39a1a86b9d scsi: lpfc: Move MI module parameter check to handle dynamic disable
lpfc_refresh_params() can be called for an async event handler. This could
potentially override the value initialized by lpfc_cmf_setup().

Move module parameter check to lpfc_refresh_params().

Link: https://lore.kernel.org/r/20220412222008.126521-14-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:45 -04:00
James Smart a6de9a2fa0 scsi: lpfc: Fix diagnostic fw logging after a function reset
The lpfc_sli4_ras_setup() routine is only called from the
lpfc_pci_probe_one_s4() routine, which means diagnostic fw logging
initialization only occurs during probing.

Thus, any path involving a reset of the HBA that restarts the state of the
SLI port does not reinitialize diagnostic fw logging.

Move lpfc_sli4_ras_setup() into lpfc_sli4_hba_setup() so that the
LOWLEVEL_SET_DIAG_LOG_OPTIONS mailbox command can be sent after a function
reset.

Link: https://lore.kernel.org/r/20220412222008.126521-4-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:44 -04:00
James Smart e294647b1a scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg()
In an attempt to log message 0126 with LOG_TRACE_EVENT, the following hard
lockup call trace hangs the system.

Call Trace:
 _raw_spin_lock_irqsave+0x32/0x40
 lpfc_dmp_dbg.part.32+0x28/0x220 [lpfc]
 lpfc_cmpl_els_fdisc+0x145/0x460 [lpfc]
 lpfc_sli_cancel_jobs+0x92/0xd0 [lpfc]
 lpfc_els_flush_cmd+0x43c/0x670 [lpfc]
 lpfc_els_flush_all_cmd+0x37/0x60 [lpfc]
 lpfc_sli4_async_event_proc+0x956/0x1720 [lpfc]
 lpfc_do_work+0x1485/0x1d70 [lpfc]
 kthread+0x112/0x130
 ret_from_fork+0x1f/0x40
Kernel panic - not syncing: Hard LOCKUP

The same CPU tries to claim the phba->port_list_lock twice.

Move the cfg_log_verbose checks as part of the lpfc_printf_vlog() and
lpfc_printf_log() macros before calling lpfc_dmp_dbg().  There is no need
to take the phba->port_list_lock within lpfc_dmp_dbg().

Link: https://lore.kernel.org/r/20220412222008.126521-3-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-18 22:48:43 -04:00
James Smart df0101197c scsi: lpfc: Fix queue failures when recovering from PCI parity error
When recovering from a pci-parity error the driver is failing to re-create
queues, causing recovery to fail. Looking deeper, it was found that the
interrupt vector count allocated on the recovery was fewer than the vectors
originally allocated. This disparity resulted in CPU map entries with stale
information. When the driver tries to re-create the queues, it attempts to
use the stale information which indicates an eq/interrupt vector that was
no longer created.

Fix by clearng the cpup map array before enabling and requesting the IRQs
in the lpfc_sli_reset_slot_s4 routine().

Link: https://lore.kernel.org/r/20220317032737.45308-4-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-29 23:19:38 -04:00
James Smart a4691038b4 scsi: lpfc: Fix unload hang after back to back PCI EEH faults
When injecting EEH errors the port is getting hung up waiting on the node
list to empty, message number 0233. The driver is stuck at this point and
also can't unload. The driver makes transport remoteport delete calls which
try to abort I/O's, but the EEH daemon has already called the driver to
detach and the detachment has set the global FC_UNLOADING flag.  There are
several code paths that will avoid I/O cleanup if the FC_UNLOADING flag is
set, resulting in transports waiting for I/O while the driver is waiting on
transports to clean up.

Additionally, during study of the list, a locking issue was found in
lpfc_sli_abort_iocb_ring that could corrupt the list.

A special case was added to the lpfc_cleanup() routine to call
lpfc_sli_flush_rings() if the driver is FC_UNLOADING and if the pci-slot
is offline (e.g. EEH).

The SLI4 part of lpfc_sli_abort_iocb_ring() is changed to use the
ring_lock.  Also added code to cancel the I/Os if the pci-slot is offline
and added checks and returns for the FC_UNLOADING and HBA_IOQ_FLUSH flags
to prevent trying to send an I/O that we cannot handle.

Link: https://lore.kernel.org/r/20220317032737.45308-3-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-29 23:19:38 -04:00
James Smart 35ed9613d8 scsi: lpfc: Improve PCI EEH Error and Recovery Handling
Following EEH errors, the driver can crash or hang when deleting the
localport or when attempting to unload.

The EEH handlers in the driver did not notify the NVMe-FC transport before
tearing the driver down. This was delayed until the resume steps. This
worked for SCSI because lpfc_block_scsi() would notify the
scsi_fc_transport that the target was not available but it would not clean
up all the references to the ndlp.

The SLI3 prep for dev reset handler did the lpfc_offline_prep() and
lpfc_offline() calls to get the port stopped before restarting. The SLI4
version of the prep for dev reset just destroyed the queues and did not
stop NVMe from continuing.  Also because the port was not really stopped
the localport destroy would hang because the transport was still waiting
for I/O. Additionally, a devloss tmo can fire and post events to a stopped
worker thread creating another hang condition.

lpfc_sli4_prep_dev_for_reset() is modified to call lpfc_offline_prep() and
lpfc_offline() rather than just lpfc_scsi_dev_block() to ensure both SCSI
and NVMe transports are notified to block I/O to the driver.

Logic is added to devloss handler and worker thread to clean up ndlp
references and quiesce appropriately.

Link: https://lore.kernel.org/r/20220317032737.45308-2-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-29 23:19:37 -04:00
James Smart f45775bf56 scsi: lpfc: Copyright updates for 14.2.0.0 patches
Update copyrights to 2022 for files modified in the 14.2.0.0 patch set.

Link: https://lore.kernel.org/r/20220225022308.16486-18-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15 13:51:50 -04:00
James Smart a680a9298e scsi: lpfc: SLI path split: Refactor lpfc_iocbq
Currently, SLI3 and SLI4 data paths use the same lpfc_iocbq structure.
This is a "common" structure but many of the components refer to sli-rev
specific entities which can lead the developer astray as to what they
actually mean, should be set to, or when they should be used.

This first patch prepares the lpfc_iocbq structure so that elements common
to both SLI3 and SLI4 data paths are more appropriately named, making it
clear they apply generically.

Fieldnames based on 'iocb' (sli3) or 'wqe' (sli4) which are actually
generic to the paths are renamed to 'cmd':

 - iocb_flag is renamed to cmd_flag

 - lpfc_vmid_iocb_tag is renamed to lpfc_vmid_tag

 - fabric_iocb_cmpl is renamed to fabric_cmd_cmpl

 - wait_iocb_cmpl is renamed to wait_cmd_cmpl

 - iocb_cmpl and wqe_cmpl are combined and renamed to cmd_cmpl

 - rsvd2 member is renamed to num_bdes due to pre-existing usage

The structure name itself will retain the iocb reference as changing to a
more relevant "job" or "cmd" title induces many hundreds of line changes
for only a name change.

lpfc_post_buffer is also renamed to lpfc_sli3_post_buffer to indicate use
in the SLI3 path only.

Link: https://lore.kernel.org/r/20220225022308.16486-2-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15 13:51:48 -04:00
James Smart 2ea3a393bf scsi: lpfc: Remove failing soft_wwn support
The soft_wwpn/soft_wwn functionality, which allows the driver to modify
service parameters in an attempt to override the adapter-assigned WWN, was
originally attempted to be removed roughly 6 yrs ago as new fabric features
were being introduced that clashed with the implementation.  In the end,
the feature was left in with the user being responsible if things went
south.

We've reached a point where soft_wwn is no longer functional and is failing
in almost all production use cases. Use of Fabric features such as Fabric
Assigned WWPN and Automatic DPORT is now prevalent and the features require
coordination between the adapter and driver that can't be solved by the
simplistic update of the service parameters. As it is no longer functional,
the feature is to be removed.

There are still ways to override the adapter-assigned WWN but they require
the admin to invoke bios/efi level menus.

Link: https://lore.kernel.org/r/20220310154845.11125-1-jsmart2021@gmail.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-14 23:29:49 -04:00
Martin K. Petersen ac2beb4e3b Merge branch '5.17/scsi-fixes' into 5.18/scsi-staging
Pull 5.17 fixes branch into 5.18 tree to resolve a few pm8001 driver
merge conflicts.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-14 21:51:29 -05:00
James Smart 5852ed2a6a scsi: lpfc: Reduce log messages seen after firmware download
Messages around firmware download were incorrectly tagged as being related
to discovery trace events. Thus, firmware download status ended up dumping
the trace log as well as the firmware update message. As there were a
couple of log messages in this state, the trace log was dumped multiple
times.

Resolve this by converting from trace events to SLI events.

Link: https://lore.kernel.org/r/20220207180442.72836-1-jsmart2021@gmail.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-07 23:45:02 -05:00
Minghao Chi (CGEL ZTE) d1d87c33f4 scsi: lpfc: Remove redundant flush_workqueue() call
destroy_workqueue() already drains the queue before destroying it, so there
is no need to flush it explicitly.

Remove the redundant flush_workqueue() call.

Link: https://lore.kernel.org/r/20220127014330.1185114-1-chi.minghao@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@zte.com.cn>
Signed-off-by: CGEL ZTE <cgel.zte@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-31 17:10:37 -05:00
Linus Torvalds e1a7aa25ff SCSI misc on 20220113
This series consists of the usual driver updates (ufs, pm80xx, lpfc,
 mpi3mr, mpt3sas, hisi_sas, libsas) and minor updates and bug fixes.
 The most impactful change is likely the switch from GFP_DMA to
 GFP_KERNEL in a bunch of drivers, but even that shouldn't affect too
 many people.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series consists of the usual driver updates (ufs, pm80xx, lpfc,
  mpi3mr, mpt3sas, hisi_sas, libsas) and minor updates and bug fixes.

  The most impactful change is likely the switch from GFP_DMA to
  GFP_KERNEL in a bunch of drivers, but even that shouldn't affect too
  many people"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (121 commits)
  scsi: mpi3mr: Bump driver version to 8.0.0.61.0
  scsi: mpi3mr: Fixes around reply request queues
  scsi: mpi3mr: Enhanced Task Management Support Reply handling
  scsi: mpi3mr: Use TM response codes from MPI3 headers
  scsi: mpi3mr: Add io_uring interface support in I/O-polled mode
  scsi: mpi3mr: Print cable mngnt and temp threshold events
  scsi: mpi3mr: Support Prepare for Reset event
  scsi: mpi3mr: Add Event acknowledgment logic
  scsi: mpi3mr: Gracefully handle online FW update operation
  scsi: mpi3mr: Detect async reset that occurred in firmware
  scsi: mpi3mr: Add IOC reinit function
  scsi: mpi3mr: Handle offline FW activation in graceful manner
  scsi: mpi3mr: Code refactor of IOC init - part2
  scsi: mpi3mr: Code refactor of IOC init - part1
  scsi: mpi3mr: Fault IOC when internal command gets timeout
  scsi: mpi3mr: Display IOC firmware package version
  scsi: mpi3mr: Handle unaligned PLL in unmap cmnds
  scsi: mpi3mr: Increase internal cmnds timeout to 60s
  scsi: mpi3mr: Do access status validation before adding devices
  scsi: mpi3mr: Add support for PCIe Managed Switch SES device
  ...
2022-01-14 14:37:34 +01:00
Kees Cook 532adda9f4 scsi: lpfc: Use struct_group() to initialize struct lpfc_cgn_info
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memset(), avoid intentionally writing across
neighboring fields.

Add struct_group() to mark "stat" region of struct lpfc_cgn_info that
should be initialized to zero, and refactor the "data" region memset()
to wipe everything up to the cgn_stats region.

Link: https://lore.kernel.org/r/20211208195957.1603092-1-keescook@chromium.org
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-13 23:30:30 -05:00
Nitesh Narayan Lal ce5a58a96c scsi: lpfc: Use irq_set_affinity()
The driver uses irq_set_affinity_hint to set the affinity for the lpfc
interrupts to a mask corresponding to the local NUMA node to avoid
performance overhead on AMD architectures.

However, irq_set_affinity_hint() setting the affinity is an undocumented
side effect that this function also sets the affinity under the hood.
To remove this side effect irq_set_affinity_hint() has been marked as
deprecated and new interfaces have been introduced.

Also, as per the commit dcaa213679 ("scsi: lpfc: Change default IRQ model
on AMD architectures"):
"On AMD architecture, revert the irq allocation to the normal style
(non-managed) and then use irq_set_affinity_hint() to set the cpu affinity
and disable user-space rebalancing."
we don't really need to set the affinity_hint as user-space rebalancing for
the lpfc interrupts is not desired.

Hence, replace the irq_set_affinity_hint() with irq_set_affinity() which
only applies the affinity for the interrupts.

Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Link: https://lore.kernel.org/r/20210903152430.244937-12-nitesh@redhat.com
2021-12-10 20:47:39 +01:00
James Smart 05116ef9c4 scsi: lpfc: Cap CMF read bytes to MBPI
Ensure read bytes data does not go over MBPI for CMF timer intervals that
are purposely shortened.

Link: https://lore.kernel.org/r/20211204002644.116455-8-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-06 22:35:37 -05:00
James Smart a6269f8370 scsi: lpfc: Adjust CMF total bytes and rxmonitor
Calculate any extra bytes needed to account for timer accuracy. If we are
less than LPFC_CMF_INTERVAL, then calculate the adjustment needed for total
to reflect a full LPFC_CMF_INTERVAL.

Add additional info to rxmonitor, and adjust some log formatting.

Link: https://lore.kernel.org/r/20211204002644.116455-7-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-06 22:35:37 -05:00
James Smart f0d3919697 scsi: lpfc: Fix leaked lpfc_dmabuf mbox allocations with NPIV
During rmmod testing, messages appeared indicating lpfc_mbuf_pool entries
were still busy. This situation was only seen doing rmmod after at least 1
vport (NPIV) instance was created and destroyed. The number of messages
scaled with the number of vports created.

When a vport is created, it can receive a PLOGI from another initiator
Nport.  When this happens, the driver prepares to ack the PLOGI and
prepares an RPI for registration (via mbx cmd) which includes an mbuf
allocation. During the unsolicited PLOGI processing and after the RPI
preparation, the driver recognizes it is one of the vport instances and
decides to reject the PLOGI. During the LS_RJT preparation for the PLOGI,
the mailbox struct allocated for RPI registration is freed, but the mbuf
that was also allocated is not released.

Fix by freeing the mbuf with the mailbox struct in the LS_RJT path.

As part of the code review to figure the issue out a couple of other areas
where found that also would not have released the mbuf. Those are cleaned
up as well.

Link: https://lore.kernel.org/r/20211204002644.116455-2-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-06 22:35:36 -05:00
James Smart af984c8729 scsi: lpfc: Allow fabric node recovery if recovery is in progress before devloss
A link bounce to a slow fabric may observe FDISC response delays lasting
longer than devloss tmo.  Current logic decrements the final fabric node
kref during a devloss tmo event.  This results in a NULL ptr dereference
crash if the FDISC completes for that fabric node after devloss tmo.

Fix by adding the NLP_IN_RECOV_POST_DEV_LOSS flag, which is set when
devloss tmo triggers and we've noticed that fabric node recovery has
already started or finished in between the time lpfc_dev_loss_tmo_callbk
queues lpfc_dev_loss_tmo_handler.  If fabric node recovery succeeds, then
the driver reverses the devloss tmo marked kref put with a kref get.  If
fabric node recovery fails, then the final kref put relies on the ELS
timing out or the REG_LOGIN cmpl routine.

Link: https://lore.kernel.org/r/20211020211417.88754-8-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-20 23:33:46 -04:00
James Smart 7a1dda9436 scsi: lpfc: Correct sysfs reporting of loop support after SFP status change
Applications determine loop support in part by querying the 'pls' sysfs
node. Reporting of 'pls' (Private Loop Support) is derived from the
descriptor returned by the COMMON_GET_SLI4_PARAMETERS mailbox command,
which is issued during initialization or after a reset.

The value of this field may change if there is a dynamic SFP change.  The
driver currently will not pick up the change as there was no reset
scenario.

Rework to commonize the sending of the COMMON_GET_SLI4_PARAMETERS
command. Add the calling of the routine after receipt of an async event
indicating an SFP change.

Link: https://lore.kernel.org/r/20211020211417.88754-4-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-20 23:33:45 -04:00