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path: root/drivers/scsi/qla2xxx/qla_os.c
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2020-05-20scsi: qla2xxx: Fix endianness annotations in source filesBart Van Assche1-13/+14
Fix all endianness complaints reported by sparse (C=2) without affecting the behavior of the code on little endian CPUs. Link: https://lore.kernel.org/r/20200518211712.11395-16-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Cast explicitly to uint16_t / uint32_tBart Van Assche1-5/+5
Casting a pointer to void * and relying on an implicit cast from void * to uint16_t or uint32_t suppresses sparse warnings about endianness. Hence cast explicitly to uint16_t and uint32_t. Additionally, remove superfluous void * casts. Link: https://lore.kernel.org/r/20200518211712.11395-13-bvanassche@acm.org Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Change {RD,WRT}_REG_*() function names from upper case into ↵Bart Van Assche1-13/+13
lower case This was suggested by Daniel Wagner. Link: https://lore.kernel.org/r/20200518211712.11395-12-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Fix the code that reads from mailbox registersBart Van Assche1-1/+1
Make the MMIO accessors strongly typed such that the compiler checks whether the accessor function is used that matches the register width. Fix those MMIO accesses where another number of bits was read or written than the size of the register. Link: https://lore.kernel.org/r/20200518211712.11395-11-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Increase the size of struct qla_fcp_prio_cfg to FCP_PRIO_CFG_SIZEBart Van Assche1-0/+1
This patch fixes the following Coverity complaint without changing any functionality: CID 337793 (#1 of 1): Wrong size argument (SIZEOF_MISMATCH) suspicious_sizeof: Passing argument ha->fcp_prio_cfg of type struct qla_fcp_prio_cfg * and argument 32768UL to function memset is suspicious because a multiple of sizeof (struct qla_fcp_prio_cfg) /*48*/ is expected. memset(ha->fcp_prio_cfg, 0, FCP_PRIO_CFG_SIZE); Link: https://lore.kernel.org/r/20200518211712.11395-8-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Add more BUILD_BUG_ON() statementsBart Van Assche1-0/+58
Before fixing the endianness annotations in data structures, make the compiler verify the size of FC protocol and firmware data structures. Link: https://lore.kernel.org/r/20200518211712.11395-6-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Sort BUILD_BUG_ON() statements alphabeticallyBart Van Assche1-2/+2
Before adding more BUILD_BUG_ON() statements, sort the existing statements alphabetically. Link: https://lore.kernel.org/r/20200518211712.11395-5-bvanassche@acm.org Cc: Nilesh Javali <njavali@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-20scsi: qla2xxx: Simplify the functions for dumping firmwareBart Van Assche1-1/+1
Instead of passing an argument to the firmware dumping functions that tells these functions whether or not to obtain the hardware lock, obtain that lock before calling these functions. This patch fixes the following recently introduced C=2 build error: CHECK drivers/scsi/qla2xxx/qla_tmpl.c drivers/scsi/qla2xxx/qla_tmpl.c:1133:1: error: Expected ; at end of statement drivers/scsi/qla2xxx/qla_tmpl.c:1133:1: error: got } drivers/scsi/qla2xxx/qla_tmpl.h:247:0: error: Expected } at end of function drivers/scsi/qla2xxx/qla_tmpl.h:247:0: error: got end-of-input Link: https://lore.kernel.org/r/20200518211712.11395-4-bvanassche@acm.org Fixes: cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling") Cc: Arun Easi <aeasi@marvell.com> Cc: Nilesh Javali <njavali@marvell.com> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-08scsi: qla2xxx: Use true, false for ha->fw_dumpedJason Yan1-1/+1
Fix the following coccicheck warning: drivers/scsi/qla2xxx/qla_tmpl.c:1120:2-20: WARNING: Assignment of 0/1 to bool variable Link: https://lore.kernel.org/r/20200430121800.15323-1-yanaijie@huawei.com Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-08scsi: qla2xxx: Fix warning after FC target resetViacheslav Dubeyko1-0/+1
Currently, FC target reset finishes with the warning message: [84010.596893] ------------[ cut here ]------------ [84010.596917] WARNING: CPU: 238 PID: 279973 at ../drivers/scsi/qla2xxx/qla_target.c:6644 qlt_enable_vha+0x1d0/0x260 [qla2xxx] [84010.596918] Modules linked in: vrf af_packet 8021q garp mrp stp llc netlink_diag target_tatlin_tblock(OEX) dm_ec(OEX) ttln_rdma(OEX) dm_frontend(OEX) nvme_rdma nvmet tcm_qla2xxx iscsi_target_mod target_core_mod at24 nvmem_core pnv_php ipmi_watchdog ipmi_ssif vmx_crypto gf128mul crct10dif_vpmsum qla2xxx rpcrdma nvme_fc powernv_flash(X) nvme_fabrics uio_pdrv_genirq mtd rtc_opal(X) ibmpowernv(X) opal_prd(X) uio scsi_transport_fc i2c_opal(X) ses enclosure ipmi_poweroff ast i2c_algo_bit ttm bmc_mcu(OEX) drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm drm_panel_orientation_quirks agpgart nfsd auth_rpcgss nfs_acl ipmi_powernv(X) lockd ipmi_devintf ipmi_msghandler grace dummy ext4 crc16 jbd2 mbcache sd_mod rdma_ucm ib_iser rdma_cm ib_umad iw_cm ib_ipoib libiscsi scsi_transport_iscsi ib_cm [84010.596975] configfs mlx5_ib ib_uverbs ib_core mlx5_core crc32c_vpmsum xhci_pci xhci_hcd mpt3sas(OEX) tg3 usbcore mlxfw tls raid_class libphy scsi_transport_sas devlink ptp pps_core nvme nvme_core sunrpc dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4 [84010.597001] Supported: Yes, External [84010.597004] CPU: 238 PID: 279973 Comm: bash Tainted: G OE 4.12.14-197.29-default #1 SLE15-SP1 [84010.597006] task: c000000a104c0000 task.stack: c000000b52188000 [84010.597007] NIP: d00000001ffd7f78 LR: d00000001ffd7f6c CTR: c0000000001676c0 [84010.597008] REGS: c000000b5218b910 TRAP: 0700 Tainted: G OE (4.12.14-197.29-default) [84010.597008] MSR: 900000010282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> [84010.597015] CR: 48242424 XER: 00000000 [84010.597016] CFAR: d00000001ff45d08 SOFTE: 1 GPR00: d00000001ffd7f6c c000000b5218bb90 d00000002001b228 0000000000000102 GPR04: 0000000000000001 0000000000000001 00013d91ed0a5e2d 0000000000000000 GPR08: c000000007793300 0000000000000000 0000000000000000 c000000a086e7818 GPR12: 0000000000002200 c000000007793300 0000000000000000 000000012bc937c0 GPR16: 000000012bbf7ed0 0000000000000000 000000012bc3dd10 0000000000000000 GPR20: 000000012bc4db28 0000010036442810 000000012bc97828 000000012bc96c70 GPR24: 00000100365b1550 0000000000000000 00000100363f3d80 c000000be20d3080 GPR28: c000000bda7eae00 c000000be20db7e8 c000000be20d3778 c000000be20db7e8 [84010.597042] NIP [d00000001ffd7f78] qlt_enable_vha+0x1d0/0x260 [qla2xxx] [84010.597051] LR [d00000001ffd7f6c] qlt_enable_vha+0x1c4/0x260 [qla2xxx] [84010.597051] Call Trace: [84010.597061] [c000000b5218bb90] [d00000001ffd7f6c] qlt_enable_vha+0x1c4/0x260 [qla2xxx] (unreliable) [84010.597064] [c000000b5218bc20] [d000000009820b6c] tcm_qla2xxx_tpg_enable_store+0xc4/0x130 [tcm_qla2xxx] [84010.597067] [c000000b5218bcb0] [d0000000185d0e68] configfs_write_file+0xd0/0x190 [configfs] [84010.597072] [c000000b5218bd00] [c0000000003d0edc] __vfs_write+0x3c/0x1e0 [84010.597074] [c000000b5218bd90] [c0000000003d2ea8] vfs_write+0xd8/0x220 [84010.597076] [c000000b5218bde0] [c0000000003d4ddc] SyS_write+0x6c/0x110 [84010.597079] [c000000b5218be30] [c00000000000b188] system_call+0x3c/0x130 [84010.597080] Instruction dump: [84010.597082] 7d0050a8 7d084b78 7d0051ad 40c2fff4 7fa3eb78 4bf73965 60000000 7fa3eb78 [84010.597086] 4bf6dcd9 60000000 2fa30000 419eff40 <0fe00000> 4bffff38 e95f0058 a12a0180 [84010.597090] ---[ end trace e32abaf6e6fee826 ]--- To reproduce: echo 0x7fffffff > /sys/module/qla2xxx/parameters/logging modprobe target_core_mod modprobe tcm_qla2xxx mkdir /sys/kernel/config/target/qla2xxx mkdir /sys/kernel/config/target/qla2xxx/<port-name> mkdir /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1 echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable echo 0 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable SYSTEM START kernel: pid 327:drivers/scsi/qla2xxx/qla_init.c:2174 qla2x00_initialize_adapter(): vha->flags.online 0x0 <...> kernel: pid 327:drivers/scsi/qla2xxx/qla_os.c:3444 qla2x00_probe_one(): vha->flags.online 0x1 echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6641 qla2x00_abort_isp_cleanup(): vha->flags.online 0x0, ISP_ABORT_NEEDED 0x0 <...> kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6998 qla2x00_restart_isp(): vha->flags.online 0x0 echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6641 qla2x00_abort_isp_cleanup(): vha->flags.online 0x0, ISP_ABORT_NEEDED 0x0 <...> kernel: pid 1404:drivers/scsi/qla2xxx/qla_os.c:1107 qla2x00_wait_for_hba_online(): base_vha->flags.online 0x0 echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable kernel: pid 1404:drivers/scsi/qla2xxx/qla_os.c:1107 qla2x00_wait_for_hba_online(): base_vha->flags.online 0x0 kernel: -----------[ cut here ]----------- kernel: WARNING: CPU: 1 PID: 1404 at drivers/scsi/qla2xxx/qla_target.c:6654 qlt_enable_vha+0x1e0/0x280 [qla2xxx] The issue happens because no real ISP reset is executed. The qla2x00_abort_isp(scsi_qla_host_t *vha) function expects that vha->flags.online will be not zero for ISP reset procedure. This patch sets vha->flags.online to 1 before calling ->abort_isp() for starting the ISP reset. Link: https://lore.kernel.org/r/1d7b21bf9f7676643239eb3d60eaca7cfa505cf0.camel@yadro.com Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Viacheslav Dubeyko <v.dubeiko@yadro.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-24scsi: qla2xxx: Fix MPI failure AEN (8200) handlingArun Easi1-0/+6
Today, upon an MPI failure AEN, on top of collecting an MPI dump, a regular firmware dump is also taken and then chip reset. This is disruptive to IOs and not required. Make the firmware dump collection, followed by chip reset, optional (not done by default). Firmware dump buffer and MPI dump buffer are independent of each other with this change and each can have dump that was taken at two different times for two different issues. The MPI dump is saved in a separate buffer and is retrieved differently from firmware dump. To collect full dump on MPI failure AEN, a module parameter is introduced: ql2xfulldump_on_mpifail (default: 0) Link: https://lore.kernel.org/r/20200331104015.24868-2-njavali@marvell.com Reported-by: kbuild test robot <lkp@intel.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-03Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-63/+659
Pull SCSI updates from James Bottomley: "This series has a huge amount of churn because it pulls in Mauro's doc update changing all our txt files to rst ones. Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc, zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and some other minor updates. The major core change is Hannes moving functions out of the aacraid driver and into the core" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits) scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code scsi: ufs: Do not rely on prefetched data scsi: dc395x: remove dc395x_bios_param scsi: libiscsi: Fix error count for active session scsi: hpsa: correct race condition in offload enabled scsi: message: fusion: Replace zero-length array with flexible-array member scsi: qedi: Add PCI shutdown handler support scsi: qedi: Add MFW error recovery process scsi: ufs: Enable block layer runtime PM for well-known logical units scsi: ufs-qcom: Override devfreq parameters scsi: ufshcd: Let vendor override devfreq parameters scsi: ufshcd: Update the set frequency to devfreq scsi: ufs: Resume ufs host before accessing ufs device scsi: ufs-mediatek: customize the delay for enabling host scsi: ufs: make HCE polling more compact to improve initialization latency scsi: ufs: allow custom delay prior to host enabling scsi: ufs-mediatek: use common delay function scsi: ufs: introduce common and flexible delay function scsi: ufs: use an enum for host capabilities scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc() ...
2020-03-27scsi: qla2xxx: Remove non functional codeDaniel Wagner1-23/+0
Remove code which has no functional use anymore since commit 3c75ad1d87c7 ("scsi: qla2xxx: Remove defer flag to indicate immeadiate port loss"). While at it remove also the stale function documentation. Link: https://lore.kernel.org/r/20200206135443.110701-1-dwagner@suse.de Reviewed-by: Arun Easi <aeasi@marvell.com> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-17scsi: qla2xxx: Fix I/Os being passed down when FC device is being deletedArun Easi1-2/+2
I/Os could be passed down while the device FC SCSI device is being deleted. This would result in unnecessary delay of I/O and driver messages (when extended logging is set). [mkp: fixed commit hash and added SoB for Nilesh] Link: https://lore.kernel.org/r/20200313085001.3781-1-njavali@marvell.com Fixes: 3c75ad1d87c7 ("scsi: qla2xxx: Remove defer flag to indicate immeadiate port loss") # v5.6-rc1+ Tested-by: Laurence Oberman <loberman@redhat.com> Reviewed-by: Laurence Oberman <loberman@redhat.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Remove restriction of FC T10-PI and FC-NVMeQuinn Tran1-4/+0
T10-PI and FC-NVMe are not mutually exclusive. This patch removes restrictions where if FC-NVMe is enabled T10-PI defaults to disabled. Link: https://lore.kernel.org/r/20200226224022.24518-16-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Serialize fc_port alloc in N2NQuinn Tran1-3/+2
For N2N, fc_port struct is created during report id acquisition. At later time, the loop resync (fabric, n2n, loop) would trigger the rest of the login using the created fc_port struct. The loop resync logic can trigger another fc_port allocation if the 1st allocation was not able to execute. This patch prevents the 2nd allocation trigger. Link: https://lore.kernel.org/r/20200226224022.24518-15-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Fix RDP respond data formatQuinn Tran1-55/+47
RPD information failed to display by switch cli command. This is caused by driver failure to properly format RDP response data with data descriptor to allow switch to parse it correctly. Link: https://lore.kernel.org/r/20200226224022.24518-13-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Update BPM enablement semantics.Andrew Vasquez1-14/+8
commit e4e3a2ce9556 ("scsi: qla2xxx: Add ability to autodetect SFP type") takes a heavy handed approach to BPM (Buffer Plus Management) enablement: 1) During hardware initialization, if an LR-capable transceiver is recognized, the driver schedules a disruptive post-initialization chip-reset (ISP-ABORT) to allow the BPM settings to be sent to the firmware. This chip-reset will result in (short-term) path-loss to all fc-rports and their attached SCSI devices. 2) LR-detection is triggered during any link-up event, resulting in a refresh and potential chip-reset Based on firmware-team guidance, upon LR-capable transceiver recognition, the driver's hardware initialization code will now re-execute firmware with the new BPM settings, then continue on with driver initialization. To address the second issue, the driver performs LR-capable detection upon the driver receiving a transceiver-insertion asynchronous event from firmware. No short-term path loss is needed with this new semantic. Link: https://lore.kernel.org/r/20200226224022.24518-10-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Andrew Vasquez <andrewv@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Use FC generic update firmware options routine for ISP27xxGiridhar Malavali1-2/+2
This patch uses generic firmware update options for FCoE based adapters as well to reduce code duplication. Link: https://lore.kernel.org/r/20200226224022.24518-4-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Giridhar Malavali <gmalavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Add 16.0GT for PCI StringHimanshu Madhani1-0/+3
This patch adds 16.0GT for readable display string. Link: https://lore.kernel.org/r/20200226224022.24518-2-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-29scsi: qla2xxx: Simplify the code for aborting SCSI commandsBart Van Assche1-13/+14
Since the SCSI core does not reuse the tag of the SCSI command that is being aborted by .eh_abort() before .eh_abort() has finished it is not necessary to check from inside that callback whether or not the SCSI command has already completed. Instead, rely on the firmware to return an error code when attempting to abort a command that has already completed. Additionally, rely on the firmware to return an error code when attempting to abort an already aborted command. In qla2x00_abort_srb(), use blk_mq_request_started() instead of sp->completed and sp->aborted. Link: https://lore.kernel.org/r/20200220043441.20504-2-bvanassche@acm.org Cc: Martin Wilck <mwilck@suse.com> Cc: Quinn Tran <qutran@marvell.com> Reviewed-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Fix RDP response sizeHimanshu Madhani1-34/+19
This patch fixes RDP length in case when driver needs to reduce length of RDP response Link: https://lore.kernel.org/r/20200212214436.25532-16-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Handle cases for limiting RDP response payload lengthJoe Carnuccio1-2/+40
This patch reduces RDP response payload length, if requesting port is a domain controller (sid 0xfffc01) and fw is earlier than 8.09.00 and fw is not 8.05.65 then limit the RDP response payload length to maximum of 256 bytes by terminating the response just before the optical element descriptor. Link: https://lore.kernel.org/r/20200212214436.25532-15-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Add deferred queue for processing ABTS and RDPJoe Carnuccio1-18/+44
This patch adds deferred queue for processing aborts and RDP in the driver. Link: https://lore.kernel.org/r/20200212214436.25532-14-hmadhani@marvell.com Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Cleanup ELS/PUREX iocb fieldsJoe Carnuccio1-11/+17
This patch does the following to improve RDP processing: - Rename field port_id to d_id in ELS and PUREX iocb structs to match FW spec. - Remove redundant comments from ELS and PUREX iocb structs. - Refactor fields in ELS iocb struct for error subcode common access. - Properly use error subcode fields in rdp processing routine. - Add print logs for alloc failure in purex rdp processing routine. Link: https://lore.kernel.org/r/20200212214436.25532-13-hmadhani@marvell.com Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Show correct port speed capabilities for RDP commandHimanshu Madhani1-6/+35
This patch correctly displays port speed capability and current speed for RDP command. Link: https://lore.kernel.org/r/20200212214436.25532-12-hmadhani@marvell.com Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Add ql2xrdpenable module parameter for RDPJoe Carnuccio1-1/+9
This patch provides separate module parameter ql2xrdpenable to turn on/off RDP capability in the driver. However, if ql2xsmartsan parameter is enabled, it will also turn on ql2xfdmienable parameter since it is required for RDP to work. Link: https://lore.kernel.org/r/20200212214436.25532-9-hmadhani@marvell.com Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Add vendor extended RDP additions and amendmentsJoe Carnuccio1-3/+543
This patch adds RDP command support in the driver. With the help of new ql2xsmartsan parameter, driver will use PUREX IOCB mode to send RDP command to switch and will be able to receive various diagnostic data. Link: https://lore.kernel.org/r/20200212214436.25532-8-hmadhani@marvell.com Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24scsi: qla2xxx: Add changes in preparation for vendor extended FDMI/RDPJoe Carnuccio1-2/+2
This patch prepares code for implementing Vendor specific extended FDMI/RDP commands. It also addes support for MBC_GET_PORT_DATABASE and MBC_GET_RNID_PARAMS commands. Link: https://lore.kernel.org/r/20200212214436.25532-7-hmadhani@marvell.com Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-11scsi: qla2xxx: Check locking assumptions at runtime in qla2x00_abort_srb()Bart Van Assche1-0/+2
Document the locking assumptions this function relies on and also verify these locking assumptions at runtime. Cc: Quinn Tran <qutran@marvell.com> Cc: Daniel Wagner <dwagner@suse.de> Link: https://lore.kernel.org/r/20200123042345.23886-2-bvanassche@acm.org Acked-by: Himanshu Madhani <hmadhani@marvell.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-03scsi: qla2xxx: Improve readability of the code that handles qla_flt_headerBart Van Assche1-0/+2
Declare qla_hw_data.flt as a qla_flt_header pointer instead of as a void pointer. Add a zero-length array at the end of struct qla_flt_header to make it clear that qla_flt_header and qla_flt_region are contiguous. This patch removes several casts but does not change any functionality. Cc: Himanshu Madhani <hmadhani@marvell.com> Cc: Quinn Tran <qutran@marvell.com> Cc: Martin Wilck <mwilck@suse.com> Cc: Daniel Wagner <dwagner@suse.de> Cc: Roman Bolshakov <r.bolshakov@yadro.com> Link: https://lore.kernel.org/r/20191219004706.39039-1-bvanassche@acm.org Reviewed-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-20scsi: qla2xxx: Cleanup unused async_logout_doneShyam Sundar1-5/+0
This patch removes unused qla2x00_async_logout_done from the code. Link: https://lore.kernel.org/r/20191217220617.28084-5-hmadhani@marvell.com Signed-off-by: Shyam Sundar <ssundar@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-20scsi: qla2xxx: Add a shadow variable to hold disc_state history of fcportShyam Sundar1-1/+1
This patch adds a shadow variable to hold disc_state history for the fcport and prints state transition when the logging is enabled. Link: https://lore.kernel.org/r/20191217220617.28084-4-hmadhani@marvell.com Signed-off-by: Shyam Sundar <ssundar@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-20scsi: qla2xxx: Remove defer flag to indicate immeadiate port lossHimanshu Madhani1-40/+17
During cable pull test case, if the port is disconnected for time larger than devloss timeout, driver does not mark path offline. In such case, instead of notifying SCSI-ML of loop down, driver goes into endless loop of device relogin because defer flag is set. With newer handling of device relogin in driver discovery, defer flag is now redundant. This patch removes defer flag and cleans up code handling port lost indication to SCSI-ML. Link: https://lore.kernel.org/r/20191217220617.28084-2-hmadhani@marvell.com Signed-off-by: Quinn Tran <qtran@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-03Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds1-72/+102
Pull SCSI updates from James Bottomley: "This is mostly update of the usual drivers: aacraid, ufs, zfcp, NCR5380, lpfc, qla2xxx, smartpqi, hisi_sas, target, mpt3sas, pm80xx plus a whole load of minor updates and fixes. The major core changes are Al Viro's reworking of sg's handling of copy to/from user, Ming Lei's removal of the host busy counter to avoid contention in the multiqueue case and Damien Le Moal's fixing of residual tracking across error handling" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (251 commits) scsi: bnx2fc: timeout calculation invalid for bnx2fc_eh_abort() scsi: target: core: Fix a pr_debug() argument scsi: iscsi: Don't send data to unbound connection scsi: target: iscsi: Wait for all commands to finish before freeing a session scsi: target: core: Release SPC-2 reservations when closing a session scsi: target: core: Document target_cmd_size_check() scsi: bnx2i: fix potential use after free Revert "scsi: qla2xxx: Fix memory leak when sending I/O fails" scsi: NCR5380: Add disconnect_mask module parameter scsi: NCR5380: Unconditionally clear ICR after do_abort() scsi: NCR5380: Call scsi_set_resid() on command completion scsi: scsi_debug: num_tgts must be >= 0 scsi: lpfc: use hdwq assigned cpu for allocation scsi: arcmsr: fix indentation issues scsi: qla4xxx: fix double free bug scsi: pm80xx: Modified the logic to collect fatal dump scsi: pm80xx: Tie the interrupt name to the module instance scsi: pm80xx: Controller fatal error through sysfs scsi: pm80xx: Do not request 12G sas speeds scsi: pm80xx: Cleanup command when a reset times out ...
2019-11-20Revert "scsi: qla2xxx: Fix memory leak when sending I/O fails"Martin K. Petersen1-4/+0
This reverts commit 2f856d4e8c23f5ad5221f8da4a2f22d090627f19. This patch was found to introduce a double free regression. The issue it originally attempted to address was fixed in patch f45bca8c5052 ("scsi: qla2xxx: Fix double scsi_done for abort path"). Link: https://lore.kernel.org/r/4BDE2B95-835F-43BE-A32C-2629D7E03E0A@marvell.com Requested-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-11Merge tag 'scsi-fixes' of ↵Linus Torvalds1-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three small changes: two in the core and one in the qla2xxx driver. The sg_tablesize fix affects a thinko in the migration to blk-mq of certain legacy drivers which could cause an oops and the sd core change should only affect zoned block devices which were wrongly suppressing error messages for reset all zones" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: core: Handle drivers which set sg_tablesize to zero scsi: qla2xxx: fix NPIV tear down process scsi: sd_zbc: Fix sd_zbc_complete()
2019-11-09scsi: qla2xxx: Fix a dma_pool_free() callBart Van Assche1-1/+2
This patch fixes the following kernel warning: DMA-API: qla2xxx 0000:00:0a.0: device driver frees DMA memory with different size [device address=0x00000000c7b60000] [map size=4088 bytes] [unmap size=512 bytes] WARNING: CPU: 3 PID: 1122 at kernel/dma/debug.c:1021 check_unmap+0x4d0/0xbd0 CPU: 3 PID: 1122 Comm: rmmod Tainted: G O 5.4.0-rc1-dbg+ #1 RIP: 0010:check_unmap+0x4d0/0xbd0 Call Trace: debug_dma_free_coherent+0x123/0x173 dma_free_attrs+0x76/0xe0 qla2x00_mem_free+0x329/0xc40 [qla2xxx_scst] qla2x00_free_device+0x170/0x1c0 [qla2xxx_scst] qla2x00_remove_one+0x4f0/0x6d0 [qla2xxx_scst] pci_device_remove+0xd5/0x1f0 device_release_driver_internal+0x159/0x280 driver_detach+0x8b/0xf2 bus_remove_driver+0x9a/0x15a driver_unregister+0x51/0x70 pci_unregister_driver+0x2d/0x130 qla2x00_module_exit+0x1c/0xbc [qla2xxx_scst] __x64_sys_delete_module+0x22a/0x300 do_syscall_64+0x6f/0x2e0 entry_SYSCALL_64_after_hwframe+0x49/0xbe Fixes: 3f006ac342c0 ("scsi: qla2xxx: Secure flash update support for ISP28XX") # v5.2-rc1~130^2~270. Cc: Michael Hernandez <mhernandez@marvell.com> Cc: Himanshu Madhani <hmadhani@marvell.com> Link: https://lore.kernel.org/r/20191106044226.5207-3-bvanassche@acm.org Reviewed-by: Martin Wilck <mwilck@suse.com> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-09scsi: qla2xxx: Fix memory leak when sending I/O failsArun Easi1-0/+4
On heavy loads, a memory leak of the srb_t structure is observed. This would make the qla2xxx_srbs cache gobble up memory. Fixes: 219d27d7147e0 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands") Cc: stable@vger.kernel.org # 5.2 Link: https://lore.kernel.org/r/20191105150657.8092-7-hmadhani@marvell.com Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-09scsi: qla2xxx: Fix double scsi_done for abort pathQuinn Tran1-56/+61
Current code assumes abort will remove the original command from the active list where scsi_done will not be called. Instead, the eh_abort thread will do the scsi_done. That is not the case. Instead, we have a double scsi_done calls triggering use after free. Abort will tell FW to release the command from FW possesion. The original command will return to ULP with error in its normal fashion via scsi_done. eh_abort path would wait for the original command completion before returning. eh_abort path will not perform the scsi_done call. Fixes: 219d27d7147e0 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands") Cc: stable@vger.kernel.org # 5.2 Link: https://lore.kernel.org/r/20191105150657.8092-6-hmadhani@marvell.com Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-09scsi: qla2xxx: Fix SRB leak on switch command timeoutQuinn Tran1-1/+6
when GPSC/GPDB switch command fails, driver just returns without doing a proper cleanup. This patch fixes this memory leak by calling sp->free() in the error path. Link: https://lore.kernel.org/r/20191105150657.8092-4-hmadhani@marvell.com Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-06scsi: qla2xxx: fix NPIV tear down processMartin Wilck1-3/+5
Fix two issues with commit f5187b7d1ac6 ("scsi: qla2xxx: Optimize NPIV tear down process"): a missing negation in a wait_event_timeout() condition, and a missing loop end condition. Fixes: f5187b7d1ac6 ("scsi: qla2xxx: Optimize NPIV tear down process") Link: https://lore.kernel.org/r/20191105145550.10268-1-martin.wilck@suse.com Signed-off-by: Martin Wilck <mwilck@suse.com> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-11-02Merge tag 'scsi-fixes' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Nine changes, eight in drivers [ufs, target, lpfc x 2, qla2xxx x 4] and one core change in sd that fixes an I/O failure on DIF type 3 devices" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla2xxx: stop timer in shutdown path scsi: sd: define variable dif as unsigned int instead of bool scsi: target: cxgbit: Fix cxgbit_fw4_ack() scsi: qla2xxx: Fix partial flash write of MBI scsi: qla2xxx: Initialized mailbox to prevent driver load failure scsi: lpfc: Honor module parameter lpfc_use_adisc scsi: ufs-bsg: Wake the device before sending raw upiu commands scsi: lpfc: Check queue pointer before use scsi: qla2xxx: fixup incorrect usage of host_byte
2019-10-29scsi: qla2xxx: stop timer in shutdown pathNicholas Piggin1-0/+4
In shutdown/reboot paths, the timer is not stopped: qla2x00_shutdown pci_device_shutdown device_shutdown kernel_restart_prepare kernel_restart sys_reboot This causes lockups (on powerpc) when firmware config space access calls are interrupted by smp_send_stop later in reboot. Fixes: e30d1756480dc ("[SCSI] qla2xxx: Addition of shutdown callback handler.") Link: https://lore.kernel.org/r/20191024063804.14538-1-npiggin@gmail.com Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-26Merge tag 'scsi-fixes' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Nine changes, eight to drivers (qla2xxx, hpsa, lpfc, alua, ch, 53c710[x2], target) and one core change that tries to close a race between sysfs delete and module removal" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: lpfc: remove left-over BUILD_NVME defines scsi: core: try to get module before removing device scsi: hpsa: add missing hunks in reset-patch scsi: target: core: Do not overwrite CDB byte 1 scsi: ch: Make it possible to open a ch device multiple times again scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE scsi: sni_53c710: fix compilation error scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions scsi: qla2xxx: fix a potential NULL pointer dereference
2019-10-10scsi: qla2xxx: fix a potential NULL pointer dereferenceAllen Pais1-0/+4
alloc_workqueue is not checked for errors and as a result a potential NULL dereference could occur. Link: https://lore.kernel.org/r/1568824618-4366-1-git-send-email-allen.pais@oracle.com Signed-off-by: Allen Pais <allen.pais@oracle.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-10scsi: qla2xxx: Set remove flag for all VPQuinn Tran1-5/+25
During driver unload, the remove flag will be set for all scsi_qla_host/NPIV. This allows each NPIV to see the flag instead of reaching for base_vha to search for it. Link: https://lore.kernel.org/r/20190912180918.6436-11-hmadhani@marvell.com Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-10scsi: qla2xxx: Dual FCP-NVMe target port supportMichael Hernandez1-9/+8
Some storage arrays advertise FCP LUNs and NVMe namespaces behind the same WWN. The driver now offers a user option by way of NVRAM parameter to allow users to choose, on a per port basis, the kind of FC-4 type they would like to prioritize for login. Link: https://lore.kernel.org/r/20190912180918.6436-9-hmadhani@marvell.com Signed-off-by: Michael Hernandez <mhernandez@marvell.com> Signed-off-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-10-10Merge branch '5.4/scsi-fixes' into 5.5/scsi-queueMartin K. Petersen1-5/+13
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>
2019-10-05Merge tag 'scsi-fixes' of ↵Linus Torvalds1-5/+13
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Twelve patches mostly small but obvious fixes or cosmetic but small updates" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: qla2xxx: Fix Nport ID display value scsi: qla2xxx: Fix N2N link up fail scsi: qla2xxx: Fix N2N link reset scsi: qla2xxx: Optimize NPIV tear down process scsi: qla2xxx: Fix stale mem access on driver unload scsi: qla2xxx: Fix unbound sleep in fcport delete path. scsi: qla2xxx: Silence fwdump template message scsi: hisi_sas: Make three functions static scsi: megaraid: disable device when probe failed after enabled device scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue scsi: qedf: Remove always false 'tmp_prio < 0' statement scsi: ufs: skip shutdown if hba is not powered scsi: bnx2fc: Handle scope bits when array returns BUSY or TSF
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