Commit Graph

2707 Commits

Author SHA1 Message Date
Saurav Kashyap 0a6f4d762c scsi: qla2xxx: Fix the call trace for flush workqueue
The call trace was because workqueue was allocated without any flags, added
WQ_MEM_RECLAIM as flag when allocating.

kernel: workqueue: WQ_MEM_RECLAIM
kblockd:blk_mq_run_work_fn is flushing !WQ_MEM_RECLAIM qla2xxx_wq:0x0
kernel: WARNING: CPU: 0 PID: 2475 at
kernel/workqueue.c:2593 check_flush_dependency+0x110/0x130
kernel: CPU: 0 PID: 2475 Comm: kworker/0:1H Kdump:
loaded Tainted: G           OE    --------- -  - 4.18.0-193.el8.x86_64 #1
kernel: Hardware name: HPE ProLiant XL170r Gen10/ProLiant XL170r Gen10, BIOS U38 05/21/2019
kernel: Workqueue: kblockd blk_mq_run_work_fn
kernel: RIP: 0010:check_flush_dependency+0x110/0x130
kernel: Code: ff ff 48 8b 50 18 48 8d 8b b0 00 00 00 49 89 e8 48 81 c6 b0 00 00 00 48 c7 c7 00 1e e9
	95 c6 05 dc 9a 2f 01 01 e8 1a 42 fe ff <0f> 0b e9 0a ff ff ff 80 3d ca 9a 2f 01 0 0 75 95 e9 41 ff ff ff 90
kernel: RSP: 0018:ffffa40f48b2baf8 EFLAGS: 00010282
kernel: RAX: 0000000000000000 RBX: ffff946795282600 RCX: 0000000000000000
kernel: RDX: 000000000000005f RSI: ffffffff96a1af7f RDI: 0000000000000246
kernel: RBP: 0000000000000000 R08: ffffffff96a1af20 R09: 0000000000029480
kernel: R10: 00080c89bb3e7462 R11: 00000000000009ab R12: ffff946773628000
kernel: R13: 0000000000000282 R14: 0000000000000246 R15: ffffa40f48b2bb40
kernel: FS: 	0000000000000000(0000) 	GS:ffff94679fa00000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 00005570c4b60110 CR3: 000000029140a005 CR4: 00000000007606f0
kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kernel: PKRU: 55555554
kernel: Call Trace:
kernel: flush_workqueue+0x13a/0x440
kernel: qla2x00_wait_for_sess_deletion+0x1d6/0x200 [qla2xxx]
kernel: ? finish_wait+0x80/0x80
kernel: qla2xxx_disable_port+0x2b/0x30 [qla2xxx]
kernel: qla2x00_process_vendor_specific+0x1dc9/0x2d20 [qla2xxx]
kernel: ? blk_rq_map_sg+0x195/0x570
kernel: qla24xx_bsg_request+0x1a3/0xf90 [qla2xxx]

Link: https://lore.kernel.org/r/20201202132312.19966-13-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:18 -05:00
Arun Easi 0bc17251df scsi: qla2xxx: Fix flash update in 28XX adapters on big endian machines
Flash update failed due to missing endian conversion in FLT region access
as well as in checksum computation.

Link: https://lore.kernel.org/r/20201202132312.19966-12-njavali@marvell.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>
2020-12-09 11:34:18 -05:00
Saurav Kashyap f795f96e72 scsi: qla2xxx: Handle aborts correctly for port undergoing deletion
Call trace observed while shutting down the adapter ports (LINK DOWN).
Handle aborts correctly.

localhost kernel: INFO: task nvme:44209 blocked for more than 120 seconds.
localhost kernel: "echo 0 >/proc/sys/kernel/hung_task_timeout_secs" disables this message.
localhost kernel: nvme            D ffff88b45fb5acc0     0 44209 1 0x00000080
localhost kernel: Call Trace:
localhost kernel: [<ffffffffbd187169>] schedule+0x29/0x70
localhost kernel: [<ffffffffbd184c51>] schedule_timeout+0x221/0x2d0
localhost kernel: [<ffffffffbcad7229>] ? ttwu_do_wakeup+0x19/0xe0
localhost kernel: [<ffffffffbcad735f>] ? ttwu_do_activate+0x6f/0x80
localhost kernel: [<ffffffffbcada830>] ? try_to_wake_up+0x190/0x390
localhost kernel: [<ffffffffbd18751d>] wait_for_completion+0xfd/0x140
localhost kernel: [<ffffffffbcadaaf0>] ? wake_up_state+0x20/0x20
localhost kernel: [<ffffffffbcabe3da>] flush_work+0x10a/0x1b0
localhost kernel: [<ffffffffbcabb0f0>] ? move_linked_works+0x90/0x90
localhost kernel: [<ffffffffbcabe6cf>] flush_delayed_work+0x3f/0x50
localhost kernel: [<ffffffffc0452767>] nvme_fc_init_ctrl+0x657/0x6a0 [nvme_fc]
localhost kernel: [<ffffffffc045293a>] nvme_fc_create_ctrl+0x18a/0x210 [nvme_fc]
localhost kernel: [<ffffffffc028962f>] nvmf_dev_write+0x98f/0xb35 [nvme_fabrics]
localhost kernel: [<ffffffffbcd08927>] ? security_file_permission+0x27/0xa0
localhost kernel: [<ffffffffbcc4db50>] vfs_write+0xc0/0x1f0
localhost kernel: [<ffffffffbcc4e92f>] SyS_write+0x7f/0xf0
localhost kernel: [<ffffffffbd193f92>] system_call_fastpath+0x25/0x2a

Link: https://lore.kernel.org/r/20201202132312.19966-11-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:18 -05:00
Quinn Tran 07a5f69248 scsi: qla2xxx: Fix N2N and NVMe connect retry failure
FC-NVMe target discovery failed when initiator wwpn < target wwpn in an N2N
(Direct Attach) config, where the driver was stuck on FCP PRLI mode and
failed to retry with NVMe PRLI.

Link: https://lore.kernel.org/r/20201202132312.19966-10-njavali@marvell.com
Fixes: 84ed362ac4 ("scsi: qla2xxx: Dual FCP-NVMe target port support”)
Fixes: 983f127603 ("scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure”)
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:18 -05:00
Arun Easi 8a78dd6ed1 scsi: qla2xxx: Fix FW initialization error on big endian machines
Some fields are not correctly byte swapped causing failure during
initialization. As probe() returns failure, HBAs will not be claimed when
this happens.

qla2xxx [0007:01:00.0]-ffff:3: Secure Flash Update in FW: Supported
qla2xxx [0007:01:00.0]-ffff:3: SCM in FW: Supported
qla2xxx [0007:01:00.0]-00d2:3: Init Firmware **** FAILED ****.
qla2xxx [0007:01:00.0]-00d6:3: Failed to initialize adapter - Adapter flags 2.
qla2xxx 0007:01:00.1: enabling device (0140 -> 0142)
qla2xxx [0007:01:00.1]-011c: : MSI-X vector count: 128.
qla2xxx [0007:01:00.1]-001d: : Found an ISP2289 irq 18 iobase 0xd000080080004000.
qla2xxx 0007:01:00.1: Using 64-bit direct DMA at offset 800000000000000
BUG: Bad page state in process insmod  pfn:67118 page:f00000000168bd40
count:-1 mapcount:0 mapping: (null) index:0x0
page flags: 0x3ffff800000000() page dumped because: nonzero _count
Modules linked in: qla2xxx(OE+) nvme_fc nvme_fabrics
	nvme_core scsi_transport_fc scsi_tgt nls_utf8 isofs ip6t_rpfilter
	ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set
	nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat
	nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle
	ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4
	nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle
	iptable_security iptable_raw ebtable_filter ebtables ip6table_filter
	ip6_tables iptable_filter nx_crypto ses enclosure scsi_transport_sas
	pseries_rng sg ip_tables xfs libcrc32c sr_mod cdrom sd_mod crc_t10dif
	crct10dif_generic crct10dif_common usb_storage ipr libata tg3 ptp
	pps_core dm_mirror dm_region_hash dm_log dm_mod
CPU: 32 PID: 8560 Comm: insmod Kdump: loaded Tainted: G
	OE  ------------   3.10.0-957.el7.ppc64 #1
Call Trace:
[c0000006dd7caa70] [c00000000001cca8] .show_stack+0x88/0x330 (unreliable)
[c0000006dd7cab30] [c000000000ac3d88] .dump_stack+0x28/0x3c
[c0000006dd7caba0] [c00000000029e48c] .bad_page+0x15c/0x1c0
[c0000006dd7cac40] [c00000000029f938] .get_page_from_freelist+0x11e8/0x1ea0
[c0000006dd7caf40] [c0000000002a1d30] .__alloc_pages_nodemask+0x1c0/0xc70
[c0000006dd7cb140] [c00000000002ba0c] .__dma_direct_alloc_coherent+0x8c/0x170
[c0000006dd7cb1e0] [d000000010a94688] .qla2x00_mem_alloc+0x10f8/0x1370 [qla2xxx]
[c0000006dd7cb2d0] [d000000010a9c790] .qla2x00_probe_one+0xb60/0x22e0 [qla2xxx]
[c0000006dd7cb540] [c0000000005de764] .pci_device_probe+0x204/0x300
[c0000006dd7cb600] [c0000000006ca61c] .driver_probe_device+0x2cc/0x6f0
[c0000006dd7cb6b0] [c0000000006cabec] .__driver_attach+0x10c/0x110
[c0000006dd7cb740] [c0000000006c5f04] .bus_for_each_dev+0x94/0x100
[c0000006dd7cb7e0] [c0000000006c94f4] .driver_attach+0x34/0x50
[c0000006dd7cb860] [c0000000006c8f58] .bus_add_driver+0x298/0x3b0
[c0000006dd7cb900] [c0000000006cb6e0] .driver_register+0xb0/0x1a0
[c0000006dd7cb980] [c0000000005dc474] .__pci_register_driver+0xc4/0xf0
[c0000006dd7cba10] [d000000010b94e20] .qla2x00_module_init+0x2a8/0x328 [qla2xxx]
[c0000006dd7cbaa0] [c00000000000c130] .do_one_initcall+0x130/0x2e0
[c0000006dd7cbb50] [c0000000001b2e8c] .load_module+0x1afc/0x2340
[c0000006dd7cbd40] [c0000000001b3920] .SyS_finit_module+0xd0/0x130
[c0000006dd7cbe30] [c00000000000a284] 	system_call+0x38/0xfc

Link: https://lore.kernel.org/r/20201202132312.19966-9-njavali@marvell.com
Fixes: 9f2475fe74 ("scsi: qla2xxx: SAN congestion management implementation")
Fixes: cf3c54fb49 ("scsi: qla2xxx: Add SLER and PI control support”)
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>
2020-12-09 11:34:18 -05:00
Arun Easi 8de309e729 scsi: qla2xxx: Fix crash during driver load on big endian machines
Crash stack:
	[576544.715489] Unable to handle kernel paging request for data at address 0xd00000000f970000
	[576544.715497] Faulting instruction address: 0xd00000000f880f64
	[576544.715503] Oops: Kernel access of bad area, sig: 11 [#1]
	[576544.715506] SMP NR_CPUS=2048 NUMA pSeries
	:
	[576544.715703] NIP [d00000000f880f64] .qla27xx_fwdt_template_valid+0x94/0x100 [qla2xxx]
	[576544.715722] LR [d00000000f7952dc] .qla24xx_load_risc_flash+0x2fc/0x590 [qla2xxx]
	[576544.715726] Call Trace:
	[576544.715731] [c0000004d0ffb000] [c0000006fe02c350] 0xc0000006fe02c350 (unreliable)
	[576544.715750] [c0000004d0ffb080] [d00000000f7952dc] .qla24xx_load_risc_flash+0x2fc/0x590 [qla2xxx]
	[576544.715770] [c0000004d0ffb170] [d00000000f7aa034] .qla81xx_load_risc+0x84/0x1a0 [qla2xxx]
	[576544.715789] [c0000004d0ffb210] [d00000000f79f7c8] .qla2x00_setup_chip+0xc8/0x910 [qla2xxx]
	[576544.715808] [c0000004d0ffb300] [d00000000f7a631c] .qla2x00_initialize_adapter+0x4dc/0xb00 [qla2xxx]
	[576544.715826] [c0000004d0ffb3e0] [d00000000f78ce28] .qla2x00_probe_one+0xf08/0x2200 [qla2xxx]

Link: https://lore.kernel.org/r/20201202132312.19966-8-njavali@marvell.com
Fixes: f73cb695d3 ("[SCSI] qla2xxx: Add support for ISP2071.")
Cc: stable@vger.kernel.org
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>
2020-12-09 11:34:17 -05:00
Arun Easi aceba54ba0 scsi: qla2xxx: Fix compilation issue in PPC systems
Fix compile time errors reported on PPC systems,

qla_gbl.h:991:20: error: inlining failed in call to always_inline
     ‘qla_nvme_abort_set_option’: function body not available

Link: https://lore.kernel.org/r/20201202132312.19966-7-njavali@marvell.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>
2020-12-09 11:34:17 -05:00
Saurav Kashyap 0ce8ab50a6 scsi: qla2xxx: Don't check for fw_started while posting NVMe command
NVMe commands can come only after successful addition of rport and NVMe
connect, and rport is only registered after FW started bit is set. Remove
the redundant check.

Link: https://lore.kernel.org/r/20201202132312.19966-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:17 -05:00
Quinn Tran e4fc78f48d scsi: qla2xxx: Tear down session if FW say it is down
The completion status 0x28 (ppc = be = 0x2800) below indicates session is
not there, trigger session deletion.

qla2xxx [000b:04:00.1]-8009:8: DEVICE RESET ISSUED nexus=8:1:51 cmd=c000001432d0f600.
qla2xxx [000b:04:00.1]-5039:8: Async-tmf error - hdl=67b completion status(2800).
qla2xxx [000b:04:00.1]-8030:8: TM IOCB failed (102).
qla2xxx [000b:04:00.1]-800c:8: do_reset failed for cmd=c000001432d0f600.
qla2xxx [000b:04:00.1]-800f:8: DEVICE RESET FAILED: Task management failed nexus=8:1:51 cmd=c000001432d0f600.
qla2xxx [000b:04:00.1]-8009:8: DEVICE RESET ISSUED nexus=8:1:52 cmd=c000001432d0c200.
qla2xxx [000b:04:00.1]-5039:8: Async-tmf error - hdl=67c completion status(2800).
qla2xxx [000b:04:00.1]-8030:8: TM IOCB failed (102).

Link: https://lore.kernel.org/r/20201202132312.19966-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:17 -05:00
Quinn Tran a6dcfe0848 scsi: qla2xxx: Limit interrupt vectors to number of CPUs
Driver created too many QPairs(126) with 28xx adapter.  Limit to the number
of CPUs to minimize wasted resources.

Link: https://lore.kernel.org/r/20201202132312.19966-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:17 -05:00
Saurav Kashyap c1599657d4 scsi: qla2xxx: Change post del message from debug level to log level
Change the message debug level.

Link: https://lore.kernel.org/r/20201202132312.19966-3-njavali@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:17 -05:00
Daniel Wagner 305c16ce26 scsi: qla2xxx: Return EBUSY on fcport deletion
When the fcport is about to be deleted we should return EBUSY instead of
ENODEV. Only for EBUSY will the request be requeued in a multipath setup.

Also return EBUSY when the firmware has not yet started to avoid dropping
the request.

Link: https://lore.kernel.org/r/20201014073048.36219-1-dwagner@suse.de
Link: https://lore.kernel.org/r/20201202132312.19966-2-njavali@marvell.com
Reviewed-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-09 11:34:17 -05:00
Tom Rix 8f525bc2a7 scsi: qla2xxx: Remove trailing semicolon in macro definition
The macro use will already have a semicolon. Remove unneeded escaped
newline.

Link: https://lore.kernel.org/r/20201130205509.3447316-1-trix@redhat.com
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-07 20:35:14 -05:00
Ahmed S. Darwish 4f6a57c23b scsi: qla2xxx: Remove in_interrupt() from qla83xx-specific code
qla83xx_wait_logic() is used to control the frequency of device IDC lock
retries. If in_interrupt() is true, it does 20 loops of cpu_relax().
Otherwise, it sleeps for 100ms and yields the CPU.

While in_interrupt() is ill-defined and does not provide what the name
suggests, it is not needed here: that qla83xx_wait_logic() is exclusively
called by qla83xx_idc_lock() / unlock(), and they always run from process
context. Below is an analysis of all the idc lock/unlock callers, in order
of appearance:

  - qla_os.c:
      qla83xx_nic_core_unrecoverable_work(),
      qla83xx_idc_state_handler_work(),
      qla83xx_nic_core_reset_work(),
      qla83xx_service_idc_aen(), all workqueue context

  - qla_os.c: qla83xx_check_nic_core_fw_alive(), has msleep()

  - qla_os.c: qla83xx_set_drv_presence(), called once from
    qla2x00_abort_isp(), which is bound to process-context ->abort_isp()
    hook. It also invokes wait_for_completion_timeout() through the chain
    qla2x00_configure_hba() => qla24xx_link_initialize() =>
    qla2x00_mailbox_command().

  - qla_os.c: qla83xx_clear_drv_presence(), which is called from
    qla2x00_abort_isp() discussed above, and from qla2x00_remove_one()
    which is PCI process-context ->remove() hook.

  - qla_os.c: qla83xx_need_reset_handler(), has a one second msleep() in
    a loop.

  - qla_os.c: qla83xx_device_bootstrap(), called only by
    qla83xx_idc_state_handler(), which has multiple msleep()
    invocations.

  - qla_os.c: qla83xx_idc_state_handler(), multiple msleep()
    invocations.

  - qla_attr.c: qla2x00_sysfs_write_reset(), sysfs bin_attribute
    ->write() hook, process context

  - qla_init.c: qla83xx_nic_core_fw_load()
      => qla_init.c: qla2x00_initialize_adapter()
        => bound to isp_operations ->initialize_adapter() hook
        ** => qla_os.c: qla2x00_probe_one(), PCI ->probe() process ctx

  - qla_init.c: qla83xx_initiating_reset(), msleep() in a loop.

  - qla_init.c: qla83xx_nic_core_reset(), called by
    qla83xx_nic_core_reset_work(), workqueue context.

Remove the in_interrupt() check, and thus replace the entirety of
qla83xx_wait_logic() with an msleep(QLA83XX_WAIT_LOGIC_MS).

Mark qla83xx_idc_lock() / unlock() with "Context: task, can sleep".

Link: https://lore.kernel.org/r/20201126132952.2287996-7-bigeasy@linutronix.de
Cc: Nilesh Javali <njavali@marvell.com>
Cc: GR-QLogic-Storage-Upstream@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-01 00:03:53 -05:00
Ahmed S. Darwish 9fef41f25d scsi: target: tcm_qla2xxx: Remove BUG_ON(in_interrupt())
tcm_qla2xxx_free_session() has a BUG_ON(in_interrupt()).

While in_interrupt() is ill-defined and does not provide what the name
suggests, it is not needed here: the function is always invoked from
workqueue context through "struct qla_tgt_func_tmpl" ->free_session() hook
it is bound to.

The function also calls wait_event_timeout() down the chain, which already
has a might_sleep().

Remove the in_interrupt() check.

Link: https://lore.kernel.org/r/20201126132952.2287996-6-bigeasy@linutronix.de
Cc: Nilesh Javali <njavali@marvell.com>
Cc: <GR-QLogic-Storage-Upstream@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-01 00:03:52 -05:00
Ahmed S. Darwish 8ac246bdd0 scsi: qla2xxx: Remove in_interrupt() from qla82xx-specific code
qla82xx_idc_lock() spins on a certain hardware state until it's updated. At
the end of each spin, if in_interrupt() is true, it does 20 loops of
cpu_relax(). Otherwise, it yields the CPU.

While in_interrupt() is ill-defined and does not provide what the name
suggests, it is not needed here: qla82xx_idc_lock() is always called from
process context. Below is an analysis of its callers, in order of
appearance:

  - qla_nx.c: qla82xx_device_bootstrap(), only called by
    qla82xx_device_state_handler(), has multiple msleep()s.

  - qla_nx.c: qla82xx_need_qsnt_handler(), has one second msleep()

  - qla_nx.c: qla82xx_wait_for_state_change(), one second msleep()

  - qla_nx.c: qla82xx_need_reset_handler(), can sleep up to 10 seconds

  - qla_nx.c: qla82xx_device_state_handler(), has multiple msleep()s

  - qla_nx.c: qla82xx_abort_isp(), if it's a qla82xx controller, calls
    qla82xx_device_state_handler(), which sleeps. It's also bound to
    isp_operations ->abort_isp() hook, where all the callers are in process
    context.

  - qla_nx.c: qla82xx_beacon_on(), bound to isp_operations ->beacon_on()
    hook.  That hook is only called once, in a mutex locked context, from
    qla2x00_beacon_store().

  - qla_nx.c: qla82xx_beacon_off(), bound to isp_operations ->beacon_off()
    hook.  Like ->beacon_on(), it's only called once, in a mutex locked
    context, from qla2x00_beacon_store().

  - qla_nx.c: qla82xx_fw_dump(), calls qla2x00_wait_for_chip_reset(), which
    has msleep() in a loop. It is bound to isp_operations ->fw_dump()
    hook. That hook *is* called from atomic context at qla_isr.c by
    multiple interrupt handlers. Nonetheless, it's other controllers
    interrupt handlers, and not the qla82xx.

  - qla82xx_msix_default() and qla82xx_msix_rsp_q() call
    qla24xx_process_response_queue() which doesn't implement the firmware
    dumping.

  - qla_attr.c: qla2x00_sysfs_write_fw_dump(), and
    qla2x00_sysfs_write_reset(), process-context sysfs ->write() hooks.

  - qla_os.c: qla2x00_probe_one(). PCI ->probe(), process context.

  - qla_os.c: qla2x00_clear_drv_active(), called solely from
    qla2x00_remove_one(), which is PCI ->remove() hook, process context.

  - qla_os.c: qla2x00_do_dpc(), kthread function, process context.

Remove the in_interrupt() check. Change qla82xx_idc_lock() specification to
a purely process-context function. Mark it with "Context: task, might
sleep".

Change qla82xx_idc_lock() implementation to sleep 100ms, instead of a
schedule(), for each spin. This is more deterministic, and it matches the
other qla models idc_lock() functions.

Link: https://lore.kernel.org/r/20201126132952.2287996-5-bigeasy@linutronix.de
Cc: Nilesh Javali <njavali@marvell.com>
Cc: <GR-QLogic-Storage-Upstream@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-01 00:03:52 -05:00
Mike Christie 6f55b06f9b scsi: target: Drop sess_cmd_lock from I/O path
Drop the sess_cmd_lock by:

 - Removing the sess_cmd_list use from LIO core, because it's been
   moved to qla2xxx.

 - Removing sess_tearing_down check in the I/O path. Instead of using that
   bit and the sess_cmd_lock, we rely on the cmd_count percpu ref. To do
   this we switch to percpu_ref_kill_and_confirm/percpu_ref_tryget_live.

Link: https://lore.kernel.org/r/1604257174-4524-7-git-send-email-michael.christie@oracle.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-04 22:39:37 -05:00
Mike Christie 605e74025f scsi: qla2xxx: Move sess cmd list/lock to driver
Except for debug output in the shutdown path, tcm_qla2xxx is the only
driver using the se_session sess_cmd_list. Move the list to that driver to
facilitate removing the sess_cmd_lock from the main I/O path for the rest
of the drivers.

Link: https://lore.kernel.org/r/1604257174-4524-6-git-send-email-michael.christie@oracle.com
Cc: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-04 22:39:37 -05:00
Mike Christie 8f394da36a scsi: qla2xxx: Drop TARGET_SCF_LOOKUP_LUN_FROM_TAG
Only the __qlt_24xx_handle_abts() code path does not know the LUN for an
abort and it uses the TARGET_SCF_LOOKUP_LUN_FROM_TAG flag to have LIO core
look it up. LIO uses target_lookup_lun_from_tag to go from cmd tag to LUN
for the driver. However, qla2xxx has a tcm_qla2xxx_find_cmd_by_tag() which
does almost the same thing as the LIO helper (it finds the cmd but does not
return the LUN). This patch has qla2xxx use its internal helper.

Link: https://lore.kernel.org/r/1604257174-4524-4-git-send-email-michael.christie@oracle.com
Cc: Nilesh Javali <njavali@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-11-04 22:39:37 -05:00
Linus Torvalds 67ff377bc3 SCSI fixes on 20201030
Four driver fixes and one core fix.  The core fix closes a race window
 where we could kick off a second asynchronous scan because the test
 and set of the variable preventing it isn't atomic.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four driver fixes and one core fix.

  The core fix closes a race window where we could kick off a second
  asynchronous scan because the test and set of the variable preventing
  it isn't atomic"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: hisi_sas: Stop using queue #0 always for v2 hw
  scsi: ibmvscsi: Fix potential race after loss of transport
  scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()
  scsi: qla2xxx: Return EBUSY on fcport deletion
  scsi: core: Don't start concurrent async scan on same host
2020-10-31 12:21:04 -07:00
Linus Torvalds 4525c8781e scsi: qla2xxx: remove incorrect sparse #ifdef
The code to try to shut up sparse warnings about questionable locking
didn't shut up sparse: it made the result not parse as valid C at all,
since the end result now has a label with no statement.

The proper fix is to just always lock the hardware, the same way Bart
did in commit 8ae178760b ("scsi: qla2xxx: Simplify the functions for
dumping firmware").  That avoids the whole problem with having locking
that is not statically obvious.

But in the meantime, just remove the incorrect attempt at trying to
avoid a sparse warning that just made things worse.

This was exposed by commit 3e6efab865 ("scsi: qla2xxx: Fix reset of
MPI firmware"), very similarly to how commit cbb01c2f2f ("scsi:
qla2xxx: Fix MPI failure AEN (8200) handling") exposed the same problem
in another place, and caused that commit 8ae178760b.

Please don't add code to just shut up sparse without actually fixing
what sparse complains about.

Reported-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Arun Easi <aeasi@marvell.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-26 15:45:22 -07:00
Tom Rix 170b7d2de2 scsi: Remove unneeded break statements
A break is not needed if it is preceded by a return or goto.

Link: https://lore.kernel.org/r/20201019142333.16584-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-26 18:23:24 -04:00
Daniel Wagner 98f9d33c5d scsi: qla2xxx: Return EBUSY on fcport deletion
When the fcport is about to be deleted we should return EBUSY instead of
ENODEV. Only for EBUSY will the request be requeued in a multipath setup.

Also return EBUSY when the firmware has not yet started to avoid dropping
the request.

Link: https://lore.kernel.org/r/20201014073048.36219-1-dwagner@suse.de
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-26 16:12:04 -04:00
Linus Torvalds af995383eb SCSI misc on 20201023
The set of core changes here is Christoph's submission path cleanups.
 These introduced a couple of regressions when first proposed so they
 got held over from the initial merge window pull request to give more
 testing time, which they've now had and Syzbot has confirmed the
 regression it detected is fixed.  The other main changes are two
 driver updates (arcmsr, pm80xx) and assorted minor clean ups.
 
 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:
 "The set of core changes here is Christoph's submission path cleanups.

  These introduced a couple of regressions when first proposed so they
  got held over from the initial merge window pull request to give more
  testing time, which they've now had and Syzbot has confirmed the
  regression it detected is fixed.

  The other main changes are two driver updates (arcmsr, pm80xx) and
  assorted minor clean ups"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: qla2xxx: Fix return of uninitialized value in rval
  scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands
  scsi: sr: Initialize ->cmd_len
  scsi: arcmsr: Update driver version to v1.50.00.02-20200819
  scsi: arcmsr: Add support for ARC-1886 series RAID controllers
  scsi: arcmsr: Fix device hot-plug monitoring timer stop
  scsi: arcmsr: Remove unnecessary syntax
  scsi: pm80xx: Driver version update
  scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
  scsi: pm80xx: Remove DMA memory allocation for ccb and device structures
  scsi: pm80xx: Increase number of supported queues
  scsi: sym53c8xx_2: Fix sizeof() mismatch
  scsi: isci: Fix a typo in a comment
  scsi: qla4xxx: Fix inconsistent format argument type
  scsi: myrb: Fix inconsistent format argument types
  scsi: myrb: Remove redundant assignment to variable timeout
  scsi: bfa: Fix error return in bfad_pci_init()
  scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup()
  scsi: snic: Simplify the return expression of svnic_cq_alloc()
  scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc()
  ...
2020-10-23 16:19:02 -07:00
Linus Torvalds 3e4fb4346c SPDX patches for 5.10-rc1
Here are some SPDX-specific changes for 5.10-rc1.
 
 They include:
 	- driver fixes to make spdxcheck.pl work properly
 	- add GFDL licenses as "deprecated" but required due to some of
 	  our documentation using them
 	- add Zlib license as "deprecated" but required because we have
 	  code with this license in the tree.
 	- convert some drivers to have SPDX identifiers that previously
 	  didn't have them.
 
 All have been in linux-next for a very long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Pull SPDX updates from Greg KH:
 "Here are some SPDX-specific changes for 5.10-rc1.

  They include:

   - driver fixes to make spdxcheck.pl work properly

   - add GFDL licenses as "deprecated" but required due to some of our
     documentation using them

   - add Zlib license as "deprecated" but required because we have code
     with this license in the tree.

   - convert some drivers to have SPDX identifiers that previously
     didn't have them.

  All have been in linux-next for a very long time with no reported
  issues"

* tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  scripts/spdxcheck.py: handle license identifiers in XML comments
  net/mlx5: IPsec: make spdxcheck.py happy
  LICENSES/deprecated: add Zlib license text
  LICENSE: add GFDL deprecated licenses
  net/qla3xxx: Convert to SPDX license identifiers
  net/qlge: Convert to SPDX license identifiers
  net/qlcnic: Convert to SPDX license identifiers
  scsi/qla2xxx: Convert to SPDX license identifiers
  scsi/qla4xxx: Convert to SPDX license identifiers
2020-10-14 16:19:42 -07:00
Linus Torvalds 55e0500eb5 SCSI misc on 20201013
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
 ibmvfc, lpfc, smartpqi, hisi_sas, qedi, qedf, mpt3sas) and minor bug
 fixes.  There are only three core changes: adding sense codes,
 cleaning up noretry and adding an option for limitless retries.
 
 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:
 "The usual driver updates (ufs, qla2xxx, tcmu, ibmvfc, lpfc, smartpqi,
  hisi_sas, qedi, qedf, mpt3sas) and minor bug fixes.

  There are only three core changes: adding sense codes, cleaning up
  noretry and adding an option for limitless retries"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (226 commits)
  scsi: hisi_sas: Recover PHY state according to the status before reset
  scsi: hisi_sas: Filter out new PHY up events during suspend
  scsi: hisi_sas: Add device link between SCSI devices and hisi_hba
  scsi: hisi_sas: Add check for methods _PS0 and _PR0
  scsi: hisi_sas: Add controller runtime PM support for v3 hw
  scsi: hisi_sas: Switch to new framework to support suspend and resume
  scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq()
  scsi: qedf: Remove redundant assignment to variable 'rc'
  scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store()
  scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro
  scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed
  scsi: sun_esp: Use module_platform_driver to simplify the code
  scsi: sun3x_esp: Use module_platform_driver to simplify the code
  scsi: sni_53c710: Use module_platform_driver to simplify the code
  scsi: qlogicpti: Use module_platform_driver to simplify the code
  scsi: mac_esp: Use module_platform_driver to simplify the code
  scsi: jazz_esp: Use module_platform_driver to simplify the code
  scsi: mvumi: Fix error return in mvumi_io_attach()
  scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req()
  scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs()
  ...
2020-10-14 15:15:35 -07:00
Colin Ian King 1ef16a407f scsi: qla2xxx: Fix return of uninitialized value in rval
A previous change removed the initialization of rval and there is now an
error where an uninitialized rval is being returned on an error return
path. Fix this by returning -ENODEV.

Link: https://lore.kernel.org/r/20201008183239.200358-1-colin.king@canonical.com
Fixes: b994718760 ("scsi: qla2xxx: Use constant when it is known")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Uninitialized scalar variable")
2020-10-08 16:50:40 -04:00
Qinglang Miao 5e7e6472ed scsi: qla2xxx: Convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Link: https://lore.kernel.org/r/20200919025202.17531-1-miaoqinglang@huawei.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07 23:50:03 -04:00
Tom Rix 21a6cd48bb scsi: qla2xxx: Initialize variable in qla8044_poll_reg()
clang static analysis reports this problem:

qla_nx2.c:694:3: warning: 6th function call argument is
  an uninitialized value
        ql_log(ql_log_fatal, vha, 0xb090,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In qla8044_poll_reg(), when reading the reg fails, the error is reported by
reusing the timeout error reporter.  Because the value is unset, a garbage
value will be reported.  Initialize the value.

Link: https://lore.kernel.org/r/20201005144544.25335-1-trix@redhat.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07 23:50:03 -04:00
Daniel Wagner 657ed8a8a6 scsi: qla2xxx: Do not consume srb greedily
qla2xx_process_get_sp_from_handle() will clear the slot in which the
current srb is stored. As a result it can't be used in
qla24xx_process_mbx_iocb_response() to check for consistency and later
again in qla24xx_mbx_iocb_entry().

Move the consistency check directly into qla24xx_mbx_iocb_entry() and avoid
the double call or any open coding of the
qla2xx_process_get_sp_from_handle() functionality.

Link: https://lore.kernel.org/r/20200929073802.18770-1-dwagner@suse.de
Fixes: 31a3271ff1 ("scsi: qla2xxx: Handle incorrect entry_type entries")
Reviewed-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07 23:50:03 -04:00
Pavel Machek (CIP) b994718760 scsi: qla2xxx: Use constant when it is known
Directly return constant when it is known to make code easier to
understand.

Link: https://lore.kernel.org/r/20200921112340.GA19336@duo.ucw.cz
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-07 23:50:03 -04:00
Ye Bin 72e813d9a1 scsi: qla2xxx: Fix inconsistent format argument type in qla_dbg.c
Fix the following warning:

[drivers/scsi/qla2xxx/qla_dbg.c:2451]: (warning) %ld in format string (no. 4)
	requires 'long' but the argument type is 'unsigned long'.

Link: https://lore.kernel.org/r/20200930022515.2862532-4-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-02 19:01:18 -04:00
Ye Bin 250bd00923 scsi: qla2xxx: Fix inconsistent format argument type in qla_os.c
Fix the following warnings:

[drivers/scsi/qla2xxx/qla_os.c:4882]: (warning) %ld in format string (no. 2)
	requires 'long' but the argument type is 'unsigned long'.
[drivers/scsi/qla2xxx/qla_os.c:5011]: (warning) %ld in format string (no. 1)
	requires 'long' but the argument type is 'unsigned long'.

Link: https://lore.kernel.org/r/20200930022515.2862532-3-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-02 19:01:18 -04:00
Ye Bin 7f5523f697 scsi: qla2xxx: Fix inconsistent format argument type in tcm_qla2xxx.c
Fix the following warnings:

[drivers/scsi/qla2xxx/tcm_qla2xxx.c:884]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[drivers/scsi/qla2xxx/tcm_qla2xxx.c:885]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[drivers/scsi/qla2xxx/tcm_qla2xxx.c:886]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[drivers/scsi/qla2xxx/tcm_qla2xxx.c:887]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[drivers/scsi/qla2xxx/tcm_qla2xxx.c:888]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.

Link: https://lore.kernel.org/r/20200930022515.2862532-2-yebin10@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-10-02 19:01:17 -04:00
Nilesh Javali 718c2fe92b scsi: qla2xxx: Update version to 10.02.00.103-k
Link: https://lore.kernel.org/r/20200929102152.32278-8-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-29 23:22:20 -04:00
Arun Easi 94eda27178 scsi: qla2xxx: Fix point-to-point (N2N) device discovery issue
Driver was using a shorter timeout waiting for PLOGI from the peer in
point-to-point configurations. Some devices takes some time (~4 seconds) to
initiate the PLOGI. This peer initiating PLOGI is when the peer has a
higher P-WWN.

Increase the wait time based on N2N R_A_TOV.

Link: https://lore.kernel.org/r/20200929102152.32278-7-njavali@marvell.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>
2020-09-29 23:22:19 -04:00
Quinn Tran 50457dab67 scsi: qla2xxx: Fix crash on session cleanup with unload
On unload, session cleanup prematurely gave the signal for driver unload
path to advance.

Link: https://lore.kernel.org/r/20200929102152.32278-6-njavali@marvell.com
Fixes: 726b854870 ("qla2xxx: Add framework for async fabric discovery")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-29 23:22:18 -04:00
Arun Easi 3e6efab865 scsi: qla2xxx: Fix reset of MPI firmware
Normally, the MPI firmware is reset when an MPI dump is collected.  If an
unsaved MPI dump exists in the driver, though, an alternate mechanism is
used. This mechanism, which was not fully correct, is not recommended and
instead an MPI dump template walk is suggested to perform the MPI reset.

To allow for the MPI dump template walk, extra space is reserved in the MPI
dump buffer which gets used only when there is already an MPI dump in
place.

Link: https://lore.kernel.org/r/20200929102152.32278-5-njavali@marvell.com
Fixes: cbb01c2f2f ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling")
Cc: stable@vger.kernel.org
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>
2020-09-29 23:22:17 -04:00
Arun Easi 7a6cdbd5e8 scsi: qla2xxx: Fix MPI reset needed message
When printing the message:

  "MPI Heartbeat stop. MPI reset is not needed.."

..the wrong register was checked leading to always printing that MPI reset
is not needed, even when it is needed. Fix the MPI reset message.

Link: https://lore.kernel.org/r/20200929102152.32278-4-njavali@marvell.com
Fixes: cbb01c2f2f ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling")
Cc: stable@vger.kernel.org
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>
2020-09-29 23:22:16 -04:00
Quinn Tran 44f5a37d1e scsi: qla2xxx: Fix buffer-buffer credit extraction error
Current code uses wrong mailbox option to extract bbc from firmware. This
field is nested inside of PLOGI payload.  Extract bbc from PLOGI template
payload.

Link: https://lore.kernel.org/r/20200929102152.32278-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-29 23:22:15 -04:00
Saurav Kashyap 7dc0f671d8 scsi: qla2xxx: Correct the check for sscanf() return value
Since the version string has been modified, sscanf() returns 4 instead of
6.

Link: https://lore.kernel.org/r/20200929102152.32278-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-29 23:22:14 -04:00
Nilesh Javali 767c8457b7 scsi: qla2xxx: Update version to 10.02.00.102-k
Update internal driver version and remove module version macro.

Link: https://lore.kernel.org/r/20200904045128.23631-14-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:52 -04:00
Saurav Kashyap cf3c54fb49 scsi: qla2xxx: Add SLER and PI control support
BIT_13 of extended FW attribute informs about NVMe-2 support.  Set BIT_15
of special feature control block for enabling SLER in FW.  Set bit 8 (SLER
supported) to 1 for the service parameter information when sending NVMe
PRLI request.  Set BIT_14 of special feature control block for enabling PI
Control in FW.  Driver should set bit 9 (PI Control supported) to 1 for the
service parameter information when sending NVMe PRLI request.  Set BIT_13
for NVMe Async events.

Link: https://lore.kernel.org/r/20200904045128.23631-13-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:51 -04:00
Quinn Tran 89c72f4245 scsi: qla2xxx: Add IOCB resource tracking
This patch tracks number of IOCB resources used in the I/O fast path. If
the number of used IOCBs reach a high water limit, driver would return the
I/O as busy and let upper layer retry. This prevents over subscription of
IOCB resources where any future error recovery command is unable to cut
through.  Enable IOCB throttling by default.

Link: https://lore.kernel.org/r/20200904045128.23631-12-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.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>
2020-09-22 18:42:49 -04:00
Arun Easi 6152d20fa6 scsi: qla2xxx: Add rport fields in debugfs
This patch adds rport fields in debugfs.

Link: https://lore.kernel.org/r/20200904045128.23631-11-njavali@marvell.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>
2020-09-22 18:42:47 -04:00
Arun Easi 4e5a05d1ec scsi: qla2xxx: Make tgt_port_database available in initiator mode
tgt_port_database data is today exported only in target mode, allow it to
be shown in initiator mode as well.

Link: https://lore.kernel.org/r/20200904045128.23631-10-njavali@marvell.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>
2020-09-22 18:42:46 -04:00
Arun Easi a35f87bdcc scsi: qla2xxx: Fix I/O errors during LIP reset tests
In .fcp_io(), returning ENODEV as soon as remote port delete has started
can cause I/O errors. Fix this by returning EBUSY until the remote port
delete finishes.

Link: https://lore.kernel.org/r/20200904045128.23631-9-njavali@marvell.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>
2020-09-22 18:42:45 -04:00
Quinn Tran 49db4d4e02 scsi: qla2xxx: Performance tweak
Move statistics fields from vha struct to qpair to reduce memory thrashing.

Link: https://lore.kernel.org/r/20200904045128.23631-8-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:45 -04:00
Quinn Tran d38cb849e1 scsi: qla2xxx: Fix memory size truncation
Memory size calculations for Extended Login used in hardware offload got
truncated. Fix this by changing definition of exlogin_size to use uint32_t.

Link: https://lore.kernel.org/r/20200904045128.23631-7-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:42 -04:00
Quinn Tran d68930bae4 scsi: qla2xxx: Reduce duplicate code in reporting speed
Indicate correct speed for 16G Mezz card.

Link: https://lore.kernel.org/r/20200904045128.23631-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:41 -04:00
Arun Easi 3aac0c0fde scsi: qla2xxx: Honor status qualifier in FCP_RSP per spec
FCP-4 (referred FCP-4 rev-2b) identifies the earlier known "retry delay
timer" field as "status qualifier", which is described in SAM-5 and later
specs. This fix makes appropriate driver side modifications to honor the
new definition. The SAM document referred was SAM-6 rev-5.

Link: https://lore.kernel.org/r/20200904045128.23631-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:40 -04:00
Arun Easi 27c8aa5e1b scsi: qla2xxx: Allow dev_loss_tmo setting for FC-NVMe devices
Add a remote port debugfs entry to get/set dev_loss_tmo for NVMe devices.

Link: https://lore.kernel.org/r/20200904045128.23631-4-njavali@marvell.com
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:39 -04:00
Arun Easi 1e98fb0f92 scsi: qla2xxx: Setup debugfs entries for remote ports
Create a base for adding remote port related entries in debugfs.

Link: https://lore.kernel.org/r/20200904045128.23631-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:36 -04:00
Arun Easi dd8d0bf6fb scsi: qla2xxx: Fix I/O failures during remote port toggle testing
Driver was using a lower value for dev_loss_tmo making it more prone to I/O
failures during remote port toggle testing. Set dev_loss_tmo to zero during
remote port registration to allow nvme-fc default dev_loss_tmo to be used,
which is higher than what driver was using.

Link: https://lore.kernel.org/r/20200904045128.23631-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-22 18:42:24 -04:00
Thomas Gleixner 77adf3f01b scsi/qla2xxx: Convert to SPDX license identifiers
All files in this driver directory contain the following notice:

  See LICENSE.qla2xxx for copyright and licensing details.

LICENSE.qla2xxx can be found in Documentation/scsi/. The file contains:

  - A copyright notice

    This copyright notice is redundant as all files contain the same
    copyright notice already

  - A license notice

    You may modify and redistribute the device driver code under the
    GNU General Public License (a copy of which is attached hereto as
    Exhibit A) published by the Free Software Foundation (version 2).

    This can be replaced with the corresponding SPDX license identifier
    (GPL-2.0-only) in the source files which reference this license
    file.

  - The full GPLv2 license text

    A redundant copy of LICENSES/preferred/GPL-2.0

Remove the notices and add the SPDX license identifier GPL-2.0-only to the
source files.

Finally remove the now redundant LICENSE.qla2xxx file.

Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Acked-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-16 14:31:50 +02:00
Jason Yan 34eb5ccf35 scsi: qla2xxx: Remove unneeded variable 'rval'
This addresses the following coccinelle warning:

drivers/scsi/qla2xxx/qla_init.c:7112:5-9: Unneeded variable: "rval".
Return "QLA_SUCCESS" on line 7115

Link: https://lore.kernel.org/r/20200911091021.2937708-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-15 17:32:01 -04:00
Martin K. Petersen 02f7415054 Merge branch '5.9/scsi-fixes' into 5.10/scsi-ufs
Resolve UFS discrepancies between fixes and queue.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-15 11:36:40 -04:00
Daniel Wagner 31a3271ff1 scsi: qla2xxx: Handle incorrect entry_type entries
It was observed on an ISP8324 16Gb HBA with fw=8.08.203 (d0d5) in a
PowerPC64 machine that pkt->entry_type was MBX_IOCB_TYPE/0x39 with an
sp->type SRB_SCSI_CMD which is invalid and should not be possible.

Reading the entry_type from the crash dump shows the expected value of
STATUS_TYPE/0x03 but the call trace shows that qla24xx_mbx_iocb_entry() is
used.

Add a check to verify for consistency and reset the HBA if an invalid state
is reached. Obviously, this is only a workaround until the real problem is
solved.

Link: https://lore.kernel.org/r/20200908081516.8561-5-dwagner@suse.de
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-09 22:01:44 -04:00
Daniel Wagner 7d88d5dff9 scsi: qla2xxx: Log calling function name in qla2x00_get_sp_from_handle()
Commit 7c3df1320e ("[SCSI] qla2xxx: Code changes to support new dynamic
logging infrastructure.") removed the use of the func argument. Let's add
it back.

Link: https://lore.kernel.org/r/20200908081516.8561-4-dwagner@suse.de
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-09 22:01:44 -04:00
Daniel Wagner 622299f16f scsi: qla2xxx: Simplify return value logic in qla2x00_get_sp_from_handle()
Refactor qla2x00_get_sp_from_handle() to avoid the unnecessary goto if
early returns are used. With this we can also avoid preinitialzing the sp
pointer.

Link: https://lore.kernel.org/r/20200908081516.8561-3-dwagner@suse.de
Reviewed-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-09 22:01:43 -04:00
Daniel Wagner c0014f9421 scsi: qla2xxx: Warn if done() or free() are called on an already freed srb
Emit a warning when ->done or ->free are called on an already freed
srb. There is a hidden use-after-free bug in the driver which corrupts
the srb memory pool which originates from the cleanup callbacks.

An extensive search didn't bring any lights on the real problem. The
initial fix was to set both pointers to NULL and try to catch invalid
accesses. But instead the memory corruption was gone and the driver
didn't crash. Since not all calling places check for NULL pointer, add
explicitly default handlers. With this we workaround the memory
corruption and add a debug help.

Link: https://lore.kernel.org/r/20200908081516.8561-2-dwagner@suse.de
Reviewed-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-09 22:01:42 -04:00
Linus Torvalds d6dc7e0682 SCSI fixes on 20200908
Eleven fixes, mostly in drivers or minor fixes in driver related
 infrastructure libraries (target, libfc and libsas).  Most of the bugs
 fixed only show up under rare circumstances, the exception being the
 endianness problem in qla2xxx which is used as a device on some sparc
 systems.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Eleven fixes, mostly in drivers or minor fixes in driver related
  infrastructure libraries (target, libfc and libsas).

  Most of the bugs fixed only show up under rare circumstances, the
  exception being the endianness problem in qla2xxx which is used as a
  device on some sparc systems"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpt3sas: Don't call disable_irq from IRQ poll handler
  scsi: megaraid_sas: Don't call disable_irq from process IRQ poll
  scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem
  scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA
  scsi: target: iscsi: Fix data digest calculation
  scsi: lpfc: Update lpfc version to 12.8.0.4
  scsi: lpfc: Extend the RDF FPIN Registration descriptor for additional events
  scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery
  scsi: lpfc: Fix setting IRQ affinity with an empty CPU mask
  scsi: qla2xxx: Fix regression on sparc64
  scsi: libfc: Fix for double free()
  scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort
2020-09-08 11:42:58 -07:00
Xianting Tian e5f48ac42c scsi: qla2xxx: Fix the return value
A negative error code should be returned.

Link: https://lore.kernel.org/r/20200829075746.19166-1-tian.xianting@h3c.com
Acked-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Xianting Tian <tian.xianting@h3c.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-02 22:49:07 -04:00
René Rebe 2a87d485c4 scsi: qla2xxx: Fix regression on sparc64
Commit 98aee70d19 ("qla2xxx: Add endianizer to max_payload_size
modifier.") in 2014 broke qla2xxx on sparc64, e.g. as in the Sun Blade 1000
/ 2000. Unbreak by partial revert to fix endianness in nvram firmware
default initialization. Also mark the second frame_payload_size in nvram_t
__le16 to avoid new sparse warnings.

Link: https://lore.kernel.org/r/20200827.222729.1875148247374704975.rene@exactcode.com
Fixes: 98aee70d19 ("qla2xxx: Add endianizer to max_payload_size modifier.")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: René Rebe <rene@exactcode.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-31 21:43:12 -04:00
Tianjia Zhang ca4fb89a3d scsi: qla2xxx: Fix wrong return value in qla_nvme_register_hba()
On an error exit path, a negative error code should be returned instead of
a positive return value.

Link: https://lore.kernel.org/r/20200802111530.5020-1-tianjia.zhang@linux.alibaba.com
Fixes: 8777e4314d ("scsi: qla2xxx: Migrate NVME N2N handling into state machine")
Cc: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 23:25:07 -04:00
Tianjia Zhang bbf2d06a9d scsi: qla2xxx: Fix wrong return value in qlt_chk_unresolv_exchg()
In the case of a failed retry, a positive value EIO is returned here.  I
think this is a typo error. It is necessary to return an error value.

[mkp: caller checks != 0 but the rest of the file uses -Exxx so fix this up
to be consistent]

Link: https://lore.kernel.org/r/20200802111528.4974-1-tianjia.zhang@linux.alibaba.com
Fixes: 0691094ff3 ("scsi: qla2xxx: Add logic to detect ABTS hang and response completion")
Cc: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 23:23:00 -04:00
Tianjia Zhang 8905cbdae9 scsi: qla2xxx: Remove redundant variable initialization
The initialization value of `rc` is wrong. It is unnecessary to initialize
`rc` variables, so remove its initialization operation.

Link: https://lore.kernel.org/r/20200802111527.4928-1-tianjia.zhang@linux.alibaba.com
Fixes: 84905dfe78 ("scsi: qla2xxx: Fix TMF and Multi-Queue config")
Cc: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 23:17:28 -04:00
Christophe JAILLET 650b323c8e scsi: qla2xxx: Fix the size used in a 'dma_free_coherent()' call
Update the size used in 'dma_free_coherent()' in order to match the one
used in the corresponding 'dma_alloc_coherent()'.

[mkp: removed memset() hunk that has already been addressed]

Link: https://lore.kernel.org/r/20200802110721.677707-1-christophe.jaillet@wanadoo.fr
Fixes: 4161cee52d ("[SCSI] qla4xxx: Add host statistics support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 22:51:17 -04:00
Suraj Upadhyay 8d1f1ffaeb scsi: qla2xxx: Remove pci-dma-compat wrapper API
The legacy API wrappers in include/linux/pci-dma-compat.h should go away as
they create unnecessary midlayering for include/linux/dma-mapping.h API.
Instead use dma-mapping.h API directly.

The patch has been generated with the coccinelle script below.  Compile
tested.

@@@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL

@@@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE

@@@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE

@@@@
- PCI_DMA_NONE
+ DMA_NONE

@@ expression E1, E2, E3; @@
- pci_alloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3; @@
- pci_zalloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3, E4; @@
- pci_free_consistent(E1, E2, E3, E4)
+ dma_free_coherent(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_single(E1, E2, E3, E4)
+ dma_map_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_single(E1, E2, E3, E4)
+ dma_unmap_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4, E5; @@
- pci_map_page(E1, E2, E3, E4, E5)
+ dma_map_page(&E1->dev, E2, E3, E4, E5)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_page(E1, E2, E3, E4)
+ dma_unmap_page(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_sg(E1, E2, E3, E4)
+ dma_map_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_sg(E1, E2, E3, E4)
+ dma_unmap_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_cpu(E1, E2, E3, E4)
+ dma_sync_single_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_device(E1, E2, E3, E4)
+ dma_sync_single_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_cpu(E1, E2, E3, E4)
+ dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_device(E1, E2, E3, E4)
+ dma_sync_sg_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2; @@
- pci_dma_mapping_error(E1, E2)
+ dma_mapping_error(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_consistent_dma_mask(E1, E2)
+ dma_set_coherent_mask(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_dma_mask(E1, E2)
+ dma_set_mask(&E1->dev, E2)

Link: https://lore.kernel.org/r/24627a86cf1e67fd229bc323316523d1ba0811f9.1596045683.git.usuraj35@gmail.com
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-24 22:30:19 -04:00
Gustavo A. R. Silva df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Li Heng bef93fbfcf scsi: qla2xxx: Remove superfluous memset()
Fixes coccicheck warning:

./drivers/scsi/qla2xxx/qla_mbx.c:4928:15-33: WARNING: dma_alloc_coherent use in els_cmd_map already zeroes out memory,  so memset is not needed

dma_alloc_coherent() already zeroes out memory so memset() is not needed.

Link: https://lore.kernel.org/r/1596079918-41115-3-git-send-email-liheng40@huawei.com
Signed-off-by: Li Heng <liheng40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-20 23:25:49 -04:00
Quinn Tran dca93232b3 Revert "scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe"
FCP T10-PI and NVMe features are independent of each other. This patch
allows both features to co-exist.

This reverts commit 5da05a26b8.

Link: https://lore.kernel.org/r/20200806111014.28434-12-njavali@marvell.com
Fixes: 5da05a26b8 ("scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:43:55 -04:00
Saurav Kashyap de7e619430 Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command"
FCoE adapter initialization failed for ISP8021 with the following patch
applied. In addition, reproduction of the issue the patch originally tried
to address has been unsuccessful.

This reverts commit 3cb182b3fa.

Link: https://lore.kernel.org/r/20200806111014.28434-11-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:43:55 -04:00
Quinn Tran 83949613fa scsi: qla2xxx: Fix null pointer access during disconnect from subsystem
NVMEAsync command is being submitted to QLA while the same NVMe controller
is in the middle of reset. The reset path has deleted the association and
freed aen_op->fcp_req.private. Add a check for this private pointer before
issuing the command.

...
 6 [ffffb656ca11fce0] page_fault at ffffffff8c00114e
    [exception RIP: qla_nvme_post_cmd+394]
    RIP: ffffffffc0d012ba  RSP: ffffb656ca11fd98  RFLAGS: 00010206
    RAX: ffff8fb039eda228  RBX: ffff8fb039eda200  RCX: 00000000000da161
    RDX: ffffffffc0d4d0f0  RSI: ffffffffc0d26c9b  RDI: ffff8fb039eda220
    RBP: 0000000000000013   R8: ffff8fb47ff6aa80   R9: 0000000000000002
    R10: 0000000000000000  R11: ffffb656ca11fdc8  R12: ffff8fb27d04a3b0
    R13: ffff8fc46dd98a58  R14: 0000000000000000  R15: ffff8fc4540f0000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 7 [ffffb656ca11fe08] nvme_fc_start_fcp_op at ffffffffc0241568 [nvme_fc]
 8 [ffffb656ca11fe50] nvme_fc_submit_async_event at ffffffffc0241901 [nvme_fc]
 9 [ffffb656ca11fe68] nvme_async_event_work at ffffffffc014543d [nvme_core]
10 [ffffb656ca11fe98] process_one_work at ffffffff8b6cd437
11 [ffffb656ca11fed8] worker_thread at ffffffff8b6cdcef
12 [ffffb656ca11ff10] kthread at ffffffff8b6d3402
13 [ffffb656ca11ff50] ret_from_fork at ffffffff8c000255

--
PID: 37824  TASK: ffff8fb033063d80  CPU: 20  COMMAND: "kworker/u97:451"
 0 [ffffb656ce1abc28] __schedule at ffffffff8be629e3
 1 [ffffb656ce1abcc8] schedule at ffffffff8be62fe8
 2 [ffffb656ce1abcd0] schedule_timeout at ffffffff8be671ed
 3 [ffffb656ce1abd70] wait_for_completion at ffffffff8be639cf
 4 [ffffb656ce1abdd0] flush_work at ffffffff8b6ce2d5
 5 [ffffb656ce1abe70] nvme_stop_ctrl at ffffffffc0144900 [nvme_core]
 6 [ffffb656ce1abe80] nvme_fc_reset_ctrl_work at ffffffffc0243445 [nvme_fc]
 7 [ffffb656ce1abe98] process_one_work at ffffffff8b6cd437
 8 [ffffb656ce1abed8] worker_thread at ffffffff8b6cdb50
 9 [ffffb656ce1abf10] kthread at ffffffff8b6d3402
10 [ffffb656ce1abf50] ret_from_fork at ffffffff8c000255

Link: https://lore.kernel.org/r/20200806111014.28434-10-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:15 -04:00
Saurav Kashyap dffa114533 scsi: qla2xxx: Check if FW supports MQ before enabling
OS boot during Boot from SAN was stuck at dracut emergency shell after
enabling NVMe driver parameter. For non-MQ support the driver was enabling
MQ. Add a check to confirm if FW supports MQ.

Link: https://lore.kernel.org/r/20200806111014.28434-9-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:15 -04:00
Arun Easi 897d68eb81 scsi: qla2xxx: Fix WARN_ON in qla_nvme_register_hba
qla_nvme_register_hba() puts out a warning when there are not enough queue
pairs available for FC-NVME.  Just fail the NVME registration rather than a
WARNING + call Trace.

Link: https://lore.kernel.org/r/20200806111014.28434-8-njavali@marvell.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>
2020-08-17 22:40:14 -04:00
Arun Easi 49030003a3 scsi: qla2xxx: Allow ql2xextended_error_logging special value 1 to be set anytime
ql2xextended_error_logging can now be set to 1 to get the default mask
value, as opposed to at module load time only.

Link: https://lore.kernel.org/r/20200806111014.28434-7-njavali@marvell.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>
2020-08-17 22:40:13 -04:00
Quinn Tran 81b9d1e19d scsi: qla2xxx: Reduce noisy debug message
Update debug level and message for ELS IOCB done.

Link: https://lore.kernel.org/r/20200806111014.28434-6-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:13 -04:00
Quinn Tran abb31aeaa9 scsi: qla2xxx: Fix login timeout
Multipath errors were seen during failback due to login timeout.  The
remote device sent LOGO, the local host tore down the session and did
relogin. The RSCN arrived indicates remote device is going through failover
after which the relogin is in a 20s timeout phase.  At this point the
driver is stuck in the relogin process.  Add a fix to delete the session as
part of abort/flush the login.

Link: https://lore.kernel.org/r/20200806111014.28434-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:12 -04:00
Quinn Tran 4709272f63 scsi: qla2xxx: Indicate correct supported speeds for Mezz card
Correct the supported speeds for 16G Mezz card.

Link: https://lore.kernel.org/r/20200806111014.28434-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:11 -04:00
Quinn Tran a117579d02 scsi: qla2xxx: Flush I/O on zone disable
Perform implicit logout to flush I/O on zone disable.

Link: https://lore.kernel.org/r/20200806111014.28434-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:11 -04:00
Quinn Tran 10ae30ba66 scsi: qla2xxx: Flush all sessions on zone disable
On Zone Disable, certain switches would ignore all commands. This causes
timeout for both switch scan command and abort of that command. On
detection of this condition, all sessions will be shutdown.

Link: https://lore.kernel.org/r/20200806111014.28434-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:40:10 -04:00
Enzo Matsumiya c314a014b1 scsi: qla2xxx: Use MBX_TOV_SECONDS for mailbox command timeout values
Improves readability of qla_mbx.c.

Link: https://lore.kernel.org/r/20200805200546.22497-1-ematsumiya@suse.de
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-17 22:19:06 -04:00
Linus Torvalds dfdf16ecfd SCSI misc on 20200806
This series consists of the usual driver updates (ufs, qla2xxx, tcmu,
 lpfc, hpsa, zfcp, scsi_debug) and minor bug fixes.  We also have a
 huge docbook fix update like most other subsystems and no major update
 to the core (the few non trivial updates are either minor fixes or
 removing an unused feature [scsi_sdb_cache]).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This consists of the usual driver updates (ufs, qla2xxx, tcmu, lpfc,
  hpsa, zfcp, scsi_debug) and minor bug fixes.

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

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits)
  scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences
  scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices
  scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM"
  scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged
  scsi: scsi_debug: Implement tur_ms_to_ready parameter
  scsi: scsi_debug: Fix request sense
  scsi: lpfc: Fix typo in comment for ULP
  scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC
  scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
  scsi: hpsa: Correct ctrl queue depth
  scsi: target: tcmu: Make TMR notification optional
  scsi: target: tcmu: Implement tmr_notify callback
  scsi: target: tcmu: Fix and simplify timeout handling
  scsi: target: tcmu: Factor out new helper ring_insert_padding
  scsi: target: tcmu: Do not queue aborted commands
  scsi: target: tcmu: Use priv pointer in se_cmd
  scsi: target: Add tmr_notify backend function
  scsi: target: Modify core_tmr_abort_task()
  scsi: target: iscsi: Fix inconsistent debug message
  scsi: target: iscsi: Fix login error when receiving
  ...
2020-08-06 16:50:07 -07:00
Shyam Sundar 58101f1504 scsi: qla2xxx: Address a set of sparse warnings
Fix the following sparse warnings:

drivers/scsi/qla2xxx/qla_isr.c:881:23: warning: restricted __le16 degrades to integer
drivers/scsi/qla2xxx/qla_isr.c:881:23: warning: cast to restricted __le16

Link: https://lore.kernel.org/r/20200715043358.21668-1-njavali@marvell.com
Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-15 16:12:24 -04:00
Shyam Sundar 9f2475fe74 scsi: qla2xxx: SAN congestion management implementation
* Firmware Initialization with SCM enabled based on NVRAM setting and
  firmware support (About Firmware).

* Enable PUREX and add support for fabric performance impact
  notification (FPIN) handling.

* Allocate a default PUREX item for each vha to handle memory allocation
  failures in ISR.

Link: https://lore.kernel.org/r/20200630102229.29660-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Shyam Sundar <ssundar@marvell.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>
2020-07-01 22:25:09 -04:00
Shyam Sundar 62e9dd1777 scsi: qla2xxx: Change in PUREX to handle FPIN ELS requests
SAN Congestion Management generates ELS pkts whose size can vary and be >
64 bytes. Change the PUREX handling code to support non-standard ELS pkt
size.

Link: https://lore.kernel.org/r/20200630102229.29660-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Shyam Sundar <ssundar@marvell.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>
2020-07-01 22:24:16 -04:00
Bart Van Assche e7019c95c4 scsi: qla2xxx: Introduce a function for computing the debug message prefix
Instead of repeating the code for generating a debug message prefix six
times, introduce a function for computing the debug message prefix.

Link: https://lore.kernel.org/r/20200629225454.22863-10-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:24 -04:00
Bart Van Assche f85a299f5e scsi: qla2xxx: Make qla2x00_restart_isp() easier to read
Instead of using complicated control flow to only have one return statement
at the end of qla2x00_restart_isp(), return an error status as soon as it
is known that this function will fail.

Link: https://lore.kernel.org/r/20200629225454.22863-9-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:23 -04:00
Bart Van Assche 57fec9f24e scsi: qla2xxx: Fix a Coverity complaint in qla2100_fw_dump()
'cnt' can exceed the size of the risc_ram[] array. Prevent that Coverity
complains by rewriting an address calculation expression. This patch fixes
the following Coverity complaint:

CID 337803 (#1 of 1): Out-of-bounds read (OVERRUN)
109. overrun-local: Overrunning array of 122880 bytes at byte offset 122880
by dereferencing pointer &fw->risc_ram[cnt].

Link: https://lore.kernel.org/r/20200629225454.22863-8-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:23 -04:00
Bart Van Assche f8f12bda53 scsi: qla2xxx: Make __qla2x00_alloc_iocbs() initialize 32 bits of request_t.handle
The request_t 'handle' member is 32-bits wide, hence use wrt_reg_dword().
Change the cast in the wrt_reg_byte() call to make it clear that a regular
pointer is casted to an __iomem pointer.

Note: 'pkt' points to I/O memory for the qlafx00 adapter family and to
coherent memory for all other adapter families.

This patch fixes the following Coverity complaint:

CID 358864 (#1 of 1): Reliance on integer endianness (INCOMPATIBLE_CAST)
incompatible_cast: Pointer &pkt->handle points to an object whose effective
type is unsigned int (32 bits, unsigned) but is dereferenced as a narrower
unsigned short (16 bits, unsigned). This may lead to unexpected results
depending on machine endianness.

Link: https://lore.kernel.org/r/20200629225454.22863-7-bvanassche@acm.org
Fixes: 8ae6d9c7eb ("[SCSI] qla2xxx: Enhancements to support ISPFx00.")
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:22 -04:00
Bart Van Assche 9bb013584a scsi: qla2xxx: Remove a superfluous cast
Remove an unnecessary cast because it prevents the compiler to perform type
checking.

Link: https://lore.kernel.org/r/20200629225454.22863-6-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:20 -04:00
Bart Van Assche 67668b5b13 scsi: qla2xxx: Initialize 'n' before using it
The following code:

	qla82xx_rom_fast_read(ha, 0, &n)

only initializes 'n' if it succeeds. Since 'n' may be reported in a debug
message even if no ROM reads succeeded, initialize 'n' to zero.

This patch fixes the following sparse warning:

qla_nx.c:1218: qla82xx_pinit_from_rom() error: uninitialized symbol 'n'.

Link: https://lore.kernel.org/r/20200629225454.22863-5-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:20 -04:00
Bart Van Assche 2f91a0a03c scsi: qla2xxx: Make qla82xx_flash_wait_write_finish() easier to read
Return early instead of having a single return statement at the end of this
function. This patch fixes the following sparse warning:

qla_nx.c:1018: qla82xx_flash_wait_write_finish() error: uninitialized symbol 'val'.

Link: https://lore.kernel.org/r/20200629225454.22863-4-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:19 -04:00
Bart Van Assche f1e12bee55 scsi: qla2xxx: Remove the __packed annotation from struct fcp_hdr and fcp_hdr_le
Remove the __packed annotation from struct fcp_hdr* because that annotation
is not necessary for these data structures.

Link: https://lore.kernel.org/r/20200629225454.22863-3-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:19 -04:00
Bart Van Assche a7f474542e scsi: qla2xxx: Check the size of struct fcp_hdr at compile time
Since struct fcp_hdr is used to exchange data with the firmware, check its
size at compile time.

Link: https://lore.kernel.org/r/20200629225454.22863-2-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-30 23:12:18 -04:00
Dan Carpenter 1fc98aaf7f scsi: qla2xxx: Fix a condition in qla2x00_find_all_fabric_devs()
This code doesn't make sense unless the correct "fcport" was found.

Link: https://lore.kernel.org/r/20200619143041.GD267142@mwanda
Fixes: 9dd9686b14 ("scsi: qla2xxx: Add changes for devloss timeout in driver")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-26 22:08:30 -04:00
Roman Bolshakov 632f24f09d scsi: qla2xxx: Keep initiator ports after RSCN
The driver performs SCR (state change registration) in all modes including
pure target mode.

For each RSCN, scan_needed flag is set in qla2x00_handle_rscn() for the
port mentioned in the RSCN and fabric rescan is scheduled. During the
rescan, GNN_FT handler, qla24xx_async_gnnft_done() deletes session of the
port that caused the RSCN.

In target mode, the session deletion has an impact on ATIO handler,
qlt_24xx_atio_pkt(). Target responds with SAM STATUS BUSY to I/O incoming
from the deleted session. qlt_handle_cmd_for_atio() and
qlt_handle_task_mgmt() return -EFAULT if they are not able to find session
of the command/TMF, and that results in invocation of qlt_send_busy():

  qlt_24xx_atio_pkt_all_vps: qla_target(0): type 6 ox_id 0014
  qla_target(0): Unable to send command to target, sending BUSY status

Such response causes command timeout on the initiator. Error handler thread
on the initiator will be spawned to abort the commands:

  scsi 23:0:0:0: tag#0 abort scheduled
  scsi 23:0:0:0: tag#0 aborting command
  qla2xxx [0000:af:00.0]-188c:23: Entered qla24xx_abort_command.
  qla2xxx [0000:af:00.0]-801c:23: Abort command issued nexus=23:0:0 -- 0 2003.

Command abort is rejected by target and fails (2003), error handler then
tries to perform DEVICE RESET and TARGET RESET but they're also doomed to
fail because TMFs are ignored for the deleted sessions.

Then initiator makes BUS RESET that resets the link via
qla2x00_full_login_lip(). BUS RESET succeeds and brings initiator port up,
SAN switch detects that and sends RSCN to the target port and it fails
again the same way as described above. It never goes out of the loop.

The change breaks the RSCN loop by keeping initiator sessions mentioned in
RSCN payload in all modes, including dual and pure target mode.

Link: https://lore.kernel.org/r/20200605144435.27023-1-r.bolshakov@yadro.com
Fixes: 2037ce49d3 ("scsi: qla2xxx: Fix stale session")
Cc: Quinn Tran <qutran@marvell.com>
Cc: Arun Easi <aeasi@marvell.com>
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: stable@vger.kernel.org # v5.4+
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Shyam Sundar <ssundar@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-23 23:49:55 -04:00
Daniel Wagner ef2e3ec520 scsi: qla2xxx: Set NVMe status code for failed NVMe FCP request
The qla2xxx driver knows when request was processed successfully or
not. But it always sets the NVMe status code to 0/NVME_SC_SUCCESS. The
upper layer needs to figure out from the rcv_rsplen and transferred_length
variables if the request was transferred successfully. This is not always
possible, e.g. when the request data length is 0, the transferred_length is
also set 0 which is interpreted as success in nvme_fc_fcpio_done(). Let's
inform the upper layer (nvme_fc_fcpio_done()) when something went wrong.

nvme_fc_fcpio_done() maps all non-NVME_SC_SUCCESS status codes to
NVME_SC_HOST_PATH_ERROR. There isn't any benefit to map the QLA status code
to the NVMe status code. Therefore, use NVME_SC_INTERNAL to indicate an
error which aligns it with the lpfc driver.

Link: https://lore.kernel.org/r/20200604100745.89250-1-dwagner@suse.de
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-23 23:48:26 -04:00
Kieran Bingham 0a19a725c0 scsi: Fix trivial spelling
The word 'descriptor' is misspelled throughout the tree.

Fix it up accordingly:
    decriptors -> descriptors

Link: https://lore.kernel.org/r/20200609124610.3445662-7-kieran.bingham+renesas@ideasonboard.com
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-06-15 23:28:04 -04:00
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
Linus Torvalds 818dbde78e SCSI misc on 20200605
This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
 target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
 of other minor updates.  There are no major core changes in this
 series apart from a refactoring in scsi_lib.c.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 :This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
  target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
  of other minor updates.

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

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits)
  scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes
  scsi: cxgb3i: Fix some leaks in init_act_open()
  scsi: ibmvscsi: Make some functions static
  scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim
  scsi: ufs: Fix WriteBooster flush during runtime suspend
  scsi: ufs: Fix index of attributes query for WriteBooster feature
  scsi: ufs: Allow WriteBooster on UFS 2.2 devices
  scsi: ufs: Remove unnecessary memset for dev_info
  scsi: ufs-qcom: Fix scheduling while atomic issue
  scsi: mpt3sas: Fix reply queue count in non RDPQ mode
  scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event
  scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()
  scsi: vhost: Notify TCM about the maximum sg entries supported per command
  scsi: qla2xxx: Remove return value from qla_nvme_ls()
  scsi: qla2xxx: Remove an unused function
  scsi: iscsi: Register sysfs for iscsi workqueue
  scsi: scsi_debug: Parser tables and code interaction
  scsi: core: Refactor scsi_mq_setup_tags function
  scsi: core: Fix incorrect usage of shost_for_each_device
  scsi: qla2xxx: Fix endianness annotations in source files
  ...
2020-06-05 15:11:50 -07:00
Daniel Wagner ac988c4936 scsi: qla2xxx: Remove return value from qla_nvme_ls()
The function always returns QLA_SUCCESS and the caller qla2x00_start_sp()
doesn't even evalute the return value. So there is no point in returning a
status.

Link: https://lore.kernel.org/r/20200520130819.90625-1-dwagner@suse.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-26 15:48:33 -04:00
Bart Van Assche ce9a9321c1 scsi: qla2xxx: Remove an unused function
This was detected by building the qla2xxx driver with clang. See also
commit a9083016a5 ("[SCSI] qla2xxx: Add ISP82XX support").

Link: https://lore.kernel.org/r/20200520040738.1017-1-bvanassche@acm.org
Cc: Arun Easi <aeasi@marvell.com>
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
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>
2020-05-26 15:47:18 -04:00
Bart Van Assche 7ffa5b9397 scsi: qla2xxx: Fix endianness annotations in source files
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>
2020-05-19 21:43:28 -04:00
Bart Van Assche 21038b0900 scsi: qla2xxx: Fix endianness annotations in header files
Annotate members of FC protocol and firmware dump data structures as big
endian. Annotate members of RISC control structures as little endian.
Annotate mailbox registers as little endian. Annotate the mb[] arrays as
CPU-endian because communication of the mb[] values with the hardware
happens through the readw() and writew() functions. readw() converts from
__le16 to u16 and writew() converts from u16 to __le16. Annotate 'handles'
as CPU-endian because for the firmware these are opaque values.

Link: https://lore.kernel.org/r/20200518211712.11395-15-bvanassche@acm.org
CC: Hannes Reinecke <hare@suse.de>
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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-19 21:43:24 -04:00
Bart Van Assche 2a4b684ab0 scsi: qla2xxx: Use make_handle() instead of open-coding it
Link: https://lore.kernel.org/r/20200518211712.11395-14-bvanassche@acm.org
Cc: Arun Easi <aeasi@marvell.com>
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Martin Wilck <mwilck@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.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>
2020-05-19 21:43:20 -04:00
Bart Van Assche ab053c09ee scsi: qla2xxx: Cast explicitly to uint16_t / uint32_t
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>
2020-05-19 21:43:19 -04:00
Bart Van Assche 04474d3a1c scsi: qla2xxx: Change {RD,WRT}_REG_*() function names from upper case into 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>
2020-05-19 21:43:17 -04:00
Bart Van Assche 37139da1b0 scsi: qla2xxx: Fix the code that reads from mailbox registers
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>
2020-05-19 21:43:10 -04:00
Bart Van Assche c388841622 scsi: qla2xxx: Use register names instead of register offsets
Make qla27xx_write_remote_reg() easier to read by using register names
instead of register offsets. The 'pahole' tool has been used to convert
register offsets into register names. See also commit cbb01c2f2f ("scsi:
qla2xxx: Fix MPI failure AEN (8200) handling").

Link: https://lore.kernel.org/r/20200518211712.11395-10-bvanassche@acm.org
Cc: Arun Easi <aeasi@marvell.com>
Cc: Nilesh Javali <njavali@marvell.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>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-19 21:43:08 -04:00
Bart Van Assche e544b720ef scsi: qla2xxx: Change two hardcoded constants into offsetof() / sizeof() expressions
This patch does not change any functionality.

Link: https://lore.kernel.org/r/20200518211712.11395-9-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>
2020-05-19 21:43:07 -04:00
Bart Van Assche d9ab5f1f05 scsi: qla2xxx: Increase the size of struct qla_fcp_prio_cfg to FCP_PRIO_CFG_SIZE
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>
2020-05-19 21:43:07 -04:00
Bart Van Assche 66f8636777 scsi: qla2xxx: Make a gap in struct qla2xxx_offld_chain explicit
This patch makes struct qla2xxx_offld_chain compatible with ARCH=i386.

Link: https://lore.kernel.org/r/20200518211712.11395-7-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: Hannes Reinecke <hare@suse.de>
Reviewed-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-19 21:43:06 -04:00
Bart Van Assche 8a73a0e002 scsi: qla2xxx: Add more BUILD_BUG_ON() statements
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>
2020-05-19 21:43:05 -04:00
Bart Van Assche 59d23cf3f2 scsi: qla2xxx: Sort BUILD_BUG_ON() statements alphabetically
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>
2020-05-19 21:43:04 -04:00
Bart Van Assche 8ae178760b scsi: qla2xxx: Simplify the functions for dumping firmware
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: cbb01c2f2f ("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>
2020-05-19 21:43:04 -04:00
Bart Van Assche 246ee22583 scsi: qla2xxx: Fix spelling of a variable name
Change "offet" into "offset" in a variable name.

Link: https://lore.kernel.org/r/20200518211712.11395-2-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Martin Wilck <mwilck@suse.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>
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>
2020-05-19 21:43:00 -04:00
Ewan D. Milne fb9024b064 scsi: qla2xxx: Do not log message when reading port speed via sysfs
Calling ql_log() inside qla2x00_port_speed_show() is causing messages to be
output to the console for no particularly good reason.  The sysfs read
routine should just return the information to userspace.  The only reason
to log a message is when the port speed actually changes, and this already
occurs elsewhere.

Link: https://lore.kernel.org/r/20200504175416.15417-1-emilne@redhat.com
Fixes: 4910b524ac ("scsi: qla2xxx: Add support for setting port speed")
Cc: <stable@vger.kernel.org> # v5.1+
Reviewed-by: Lee Duncan <lduncan@suse.com>
Reviewed-by: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11 19:42:36 -04:00
Jason Yan 88bfdf565c scsi: qla2xxx: Make qlafx00_process_aen() return void
No other functions use the return value of qlafx00_process_aen() and the
return value is always 0 now. Make it return void. This fixes the following
coccicheck warning:

drivers/scsi/qla2xxx/qla_mr.c:1716:5-9: Unneeded variable: "rval".
Return "0" on line 1768

Link: https://lore.kernel.org/r/20200506061757.19536-1-yanaijie@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-07 21:58:58 -04:00
Jason Yan dbe6f49259 scsi: qla2xxx: Use true, false for ha->fw_dumped
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>
2020-05-07 21:57:47 -04:00
Jason Yan bda552a774 scsi: qla2xxx: Use true, false for need_mpi_reset
Fix the following coccicheck warning:

drivers/scsi/qla2xxx/qla_tmpl.c:1031:6-20: WARNING: Assignment of 0/1 to
bool variable
drivers/scsi/qla2xxx/qla_tmpl.c:1062:3-17: WARNING: Assignment of 0/1 to
bool variable

Link: https://lore.kernel.org/r/20200430121751.15232-1-yanaijie@huawei.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-07 21:56:38 -04:00
Jason Yan 1b007f96f9 scsi: qla2xxx: Make qla_set_ini_mode() return void
The return value is not used by the caller and the local variable 'rc' is
not needed. Make qla_set_ini_mode() return void and remove 'rc'.  This also
fixes the following coccicheck warning:

drivers/scsi/qla2xxx/qla_attr.c:1906:5-7: Unneeded variable: "rc".
Return "0" on line 2180

Link: https://lore.kernel.org/r/20200429140952.8240-1-yanaijie@huawei.com
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-07 21:54:42 -04:00
Viacheslav Dubeyko 803e45550b scsi: qla2xxx: Fix issue with adapter's stopping state
The goal of the following command sequence is to restart the adapter.
However, the tgt_stop flag remains set, indicating that the adapter is
still in stopping state even after re-enabling it.

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

kernel: PID 1396:qla_target.c:1555 qlt_stop_phase1(): tgt_stop 0x0, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-e803:1: PID 1396:qla_target.c:1567: Stopping target for host 1(c0000000033557e8)
kernel: PID 1396:qla_target.c:1579 qlt_stop_phase1(): tgt_stop 0x1, tgt_stopped 0x0
kernel: PID 1396:qla_target.c:1266 qlt_schedule_sess_for_deletion(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-e801:1: PID 1396:qla_target.c:1316: Scheduling sess c00000002d5cd800 for deletion 21:00:00:24:ff:7f:35:c7
<skipped>
kernel: qla2xxx [0001:00:02.0]-290a:1: PID 340:qla_target.c:1187: qlt_unreg_sess sess c00000002d5cd800 for deletion 21:00:00:24:ff:7f:35:c7
<skipped>
kernel: qla2xxx [0001:00:02.0]-f801:1: PID 340:qla_target.c:1145: Unregistration of sess c00000002d5cd800 21:00:00:24:ff:7f:35:c7 finished fcp_cnt 0
kernel: PID 340:qla_target.c:1155 qlt_free_session_done(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-4807:1: PID 346:qla_os.c:6329: ISP abort scheduled.
<skipped>
kernel: qla2xxx [0001:00:02.0]-28f1:1: PID 346:qla_os.c:3956: Mark all dev lost
kernel: PID 346:qla_target.c:1266 qlt_schedule_sess_for_deletion(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-4808:1: PID 346:qla_os.c:6338: ISP abort end.
<skipped>
kernel: PID 1396:qla_target.c:6812 qlt_enable_vha(): tgt_stop 0x1, tgt_stopped 0x0
<skipped>
kernel: qla2xxx [0001:00:02.0]-4807:1: PID 346:qla_os.c:6329: ISP abort scheduled.
<skipped>
kernel: qla2xxx [0001:00:02.0]-4808:1: PID 346:qla_os.c:6338: ISP abort end.

qlt_handle_cmd_for_atio() rejects the request to send commands because the
adapter is in the stopping state:

kernel: PID 0:qla_target.c:4442 qlt_handle_cmd_for_atio(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-3861:1: PID 0:qla_target.c:4447: New command while device c000000005314600 is shutting down
kernel: qla2xxx [0001:00:02.0]-e85f:1: PID 0:qla_target.c:5728: qla_target: Unable to send command to target

This patch calls qla_stop_phase2() in addition to qlt_stop_phase1() in
tcm_qla2xxx_tpg_enable_store() and tcm_qla2xxx_npiv_tpg_enable_store(). The
qlt_stop_phase1() marks adapter as stopping (tgt_stop == 0x1, tgt_stopped
== 0x0) but qlt_stop_phase2() marks adapter as stopped (tgt_stop == 0x0,
tgt_stopped == 0x1).

Link: https://lore.kernel.org/r/52be1e8a3537f6c5407eae3edd4c8e08a9545ea5.camel@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Viacheslav Dubeyko <v.dubeiko@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-07 21:42:03 -04:00
Viacheslav Dubeyko 6b3d16f987 scsi: qla2xxx: Fix failure message in qlt_disable_vha()
The following sequence of commands result in an incorrect failure message
being printed:

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

qla2xxx [0001:00:02.0]-e881:1: qla2x00_wait_for_hba_online() failed

The reason of this message is the QLA_FUNCTION_FAILED code that
qla2x00_wait_for_hba_online() returns. However, qlt_disable_vha() expects
that adapter is offlined and QLA_FUNCTION_FAILED informs about the offline
state of the adapter.

The qla2x00_abort_isp() function finishes the execution at the point of
checking the adapter's mode (for example, qla_tgt_mode_enabled()) because
of the qlt_disable_vha() calls qlt_clear_mode() method. It means that
qla2x00_abort_isp() keeps vha->flags.online is equal to zero. Finally,
qla2x00_wait_for_hba_online() checks the state of this flag and returns
QLA_FUNCTION_FAILED error code.

This patch changes the failure message which informs about adapter's
offline state.

Link: https://lore.kernel.org/r/3cd0bbf3599c53b0c2a7184582d705d8b8052c8b.camel@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Viacheslav Dubeyko <v.dubeiko@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-07 21:31:42 -04:00
Viacheslav Dubeyko f839544ccf scsi: qla2xxx: Fix warning after FC target reset
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>
2020-05-07 21:26:23 -04:00
Colin Ian King 78b874b7cb scsi: qla2xxx: make 1-bit bit-fields unsigned int
The bitfields mpi_fw_dump_reading and mpi_fw_dumped are currently signed
which is not recommended as the representation is an implementation defined
behaviour.  Fix this by making the bit-fields unsigned ints.

Link: https://lore.kernel.org/r/20200428102013.1040598-1-colin.king@canonical.com
Fixes: cbb01c2f2f ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling")
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-29 22:10:40 -04:00
Quinn Tran c48f849d3f scsi: qla2xxx: Delete all sessions before unregister local nvme port
Delete all sessions before unregistering local nvme port.  This allows nvme
layer to decrement all active rport count down to zero.  Once the count is
down to zero, nvme would call qla to continue with the npiv port deletion.

PID: 27448  TASK: ffff9e34b777c1c0  CPU: 0   COMMAND: "qaucli"
 0 [ffff9e25e84abbd8] __schedule at ffffffff977858ca
 1 [ffff9e25e84abc68] schedule at ffffffff97785d79
 2 [ffff9e25e84abc78] schedule_timeout at ffffffff97783881
 3 [ffff9e25e84abd28] wait_for_completion at ffffffff9778612d
 4 [ffff9e25e84abd88] qla_nvme_delete at ffffffffc0e3024e [qla2xxx]
 5 [ffff9e25e84abda8] qla24xx_vport_delete at ffffffffc0e024b9 [qla2xxx]
 6 [ffff9e25e84abdf0] fc_vport_terminate at ffffffffc011c247 [scsi_transport_fc]
 7 [ffff9e25e84abe28] store_fc_host_vport_delete at ffffffffc011cd94 [scsi_transport_fc]
 8 [ffff9e25e84abe70] dev_attr_store at ffffffff974b376b
 9 [ffff9e25e84abe80] sysfs_kf_write at ffffffff972d9a92
10 [ffff9e25e84abe90] kernfs_fop_write at ffffffff972d907b
11 [ffff9e25e84abec8] vfs_write at ffffffff9724c790
12 [ffff9e25e84abf08] sys_write at ffffffff9724d55f
13 [ffff9e25e84abf50] system_call_fastpath at ffffffff97792ed2
    RIP: 00007fc0bd81a6fd  RSP: 00007ffff78d9648  RFLAGS: 00010202
    RAX: 0000000000000001  RBX: 0000000000000022  RCX: 00007ffff78d96e0
    RDX: 0000000000000022  RSI: 00007ffff78d94e0  RDI: 0000000000000008
    RBP: 00007ffff78d9440   R8: 0000000000000000   R9: 00007fc0bd48b2cd
    R10: 0000000000000017  R11: 0000000000000293  R12: 0000000000000000
    R13: 00005624e4dac840  R14: 00005624e4da9a10  R15: 0000000000000000
    ORIG_RAX: 0000000000000001  CS: 0033  SS: 002b

Link: https://lore.kernel.org/r/20200331104015.24868-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-24 12:17:06 -04:00
Arun Easi 45a76264c2 scsi: qla2xxx: Fix hang when issuing nvme disconnect-all in NPIV
In NPIV environment, a NPIV host may use a queue pair created by base host
or other NPIVs, so the check for a queue pair created by this NPIV is not
correct, and can cause an abort to fail, which in turn means the NVME
command not returned.  This leads to hang in nvme_fc layer in
nvme_fc_delete_association() which waits for all I/Os to be returned, which
is seen as hang in the application.

Link: https://lore.kernel.org/r/20200331104015.24868-3-njavali@marvell.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>
2020-04-24 12:16:57 -04:00
Arun Easi cbb01c2f2f scsi: qla2xxx: Fix MPI failure AEN (8200) handling
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>
2020-04-24 12:15:47 -04:00
Martin Wilck 5a263892d7 scsi: qla2xxx: check UNLOADING before posting async work
qlt_free_session_done() tries to post async PRLO / LOGO, and waits for the
completion of these async commands. If UNLOADING is set, this is doomed to
timeout, because the async logout command will never complete.

The only way to avoid waiting pointlessly is to fail posting these commands
in the first place if the driver is in UNLOADING state.  In general,
posting any command should be avoided when the driver is UNLOADING.

With this patch, "rmmod qla2xxx" completes without noticeable delay.

Link: https://lore.kernel.org/r/20200421204621.19228-3-mwilck@suse.com
Fixes: 45235022da ("scsi: qla2xxx: Fix driver unload by shutting down chip")
Acked-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-21 23:53:34 -04:00
Martin Wilck 856e152a3c scsi: qla2xxx: set UNLOADING before waiting for session deletion
The purpose of the UNLOADING flag is to avoid port login procedures to
continue when a controller is in the process of shutting down.  It makes
sense to set this flag before starting session teardown.

Furthermore, use atomic test_and_set_bit() to avoid the shutdown being run
multiple times in parallel. In qla2x00_disable_board_on_pci_error(), the
test for UNLOADING is postponed until after the check for an already
disabled PCI board.

Link: https://lore.kernel.org/r/20200421204621.19228-2-mwilck@suse.com
Fixes: 45235022da ("scsi: qla2xxx: Fix driver unload by shutting down chip")
Reviewed-by: Arun Easi <aeasi@marvell.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-21 23:53:33 -04:00
Bart Van Assche d221aed19c scsi: qla2xxx: Use ARRAY_SIZE() instead of open-coding it
This patch does not change any functionality.

Link: https://lore.kernel.org/r/20200413021359.21725-1-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Himanshu Madhani <himanshu.madhani@oracle.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Daniel Wagner <dwagner@suse.de>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14 21:31:00 -04:00
Bart Van Assche 21e855cdfe scsi: qla2xxx: Split qla2x00_configure_local_loop()
The size of the function qla2x00_configure_local_loop() hurts its
readability. Hence split that function. This patch does not change any
functionality.

Link: https://lore.kernel.org/r/20200405225905.17171-1-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
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>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
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>
2020-04-13 22:06:45 -04:00
Nilesh Javali bb46737ec0 scsi: qla2xxx: Fix regression warnings
drivers/scsi/qla2xxx/qla_dbg.c:2542:7: warning: The scope of the variable 'pbuf'
can be reduced. [variableScope]
drivers/scsi/qla2xxx/qla_init.c:3615:6: warning: Variable 'rc' is assigned a
value that is never used. [unreadVariable]
drivers/scsi/qla2xxx/qla_isr.c:81:11-29: WARNING: dma_alloc_coherent use in
rsp_els already zeroes out memory, so memset is not needed
drivers/scsi/qla2xxx/qla_mbx.c:4889:15-33: WARNING: dma_alloc_coherent use in
els_cmd_map already zeroes out memory, so memset is not needed

[mkp: added newline after variable declaration]

Link: https://lore.kernel.org/r/20200403084018.30766-2-njavali@marvell.com
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-13 13:58:18 -04:00
Linus Torvalds 8df2a0a6da block-5.7-2020-04-10
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Merge tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Here's a set of fixes that should go into this merge window. This
  contains:

   - NVMe pull request from Christoph with various fixes

   - Better discard support for loop (Evan)

   - Only call ->commit_rqs() if we have queued IO (Keith)

   - blkcg offlining fixes (Tejun)

   - fix (and fix the fix) for busy partitions"

* tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block:
  block: fix busy device checking in blk_drop_partitions again
  block: fix busy device checking in blk_drop_partitions
  nvmet-rdma: fix double free of rdma queue
  blk-mq: don't commit_rqs() if none were queued
  nvme-fc: Revert "add module to ops template to allow module references"
  nvme: fix deadlock caused by ANA update wrong locking
  nvmet-rdma: fix bonding failover possible NULL deref
  loop: Better discard support for block devices
  loop: Report EOPNOTSUPP properly
  nvmet: fix NULL dereference when removing a referral
  nvme: inherit stable pages constraint in the mpath stack device
  blkcg: don't offline parent blkcg first
  blkcg: rename blkcg->cgwb_refcnt to ->online_pin and always use it
  nvme-tcp: fix possible crash in recv error flow
  nvme-tcp: don't poll a non-live queue
  nvme-tcp: fix possible crash in write_zeroes processing
  nvmet-fc: fix typo in comment
  nvme-rdma: Replace comma with a semicolon
  nvme-fcloop: fix deallocation of working context
  nvme: fix compat address handling in several ioctls
2020-04-10 10:06:54 -07:00
James Smart 8c5c660529 nvme-fc: Revert "add module to ops template to allow module references"
The original patch was to resolve the lldd being able to be unloaded
while being used to talk to the boot device of the system. However, the
end result of the original patch is that any driver unload while a nvme
controller is live via the lldd is now being prohibited. Given the module
reference, the module teardown routine can't be called, thus there's no
way, other than manual actions to terminate the controllers.

Fixes: 863fbae929 ("nvme_fc: add module to ops template to allow module references")
Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-04-04 09:09:39 +02:00
Linus Torvalds 79f51b7b9c SCSI misc on 20200402
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 update is Hannes moving functions out of the
 aacraid driver and into the core.
 
 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 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()
  ...
2020-04-02 17:03:53 -07:00
Daniel Wagner 1b72e86ddb scsi: qla2xxx: Remove non functional code
Remove code which has no functional use anymore since commit 3c75ad1d87
("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>
2020-03-26 21:07:29 -04:00
Arun Easi 78c3e5e6cd scsi: qla2xxx: Fix I/Os being passed down when FC device is being deleted
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: 3c75ad1d87 ("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>
2020-03-17 12:29:13 -04:00
Rajan Shanmugavelu 598a90f200 scsi: qla2xxx: add ring buffer for tracing debug logs
Having this log in a ring buffer helps to diagnose qla2xxx driver and
firmware issues instead of having to reproduce the problem with
extended_logging enabled. This saves cycles and helps when it is hard
to reproduce problem.

Link: https://lore.kernel.org/r/1581557368-32080-1-git-send-email-rajan.shanmugavelu@oracle.com
Reviewed-by: Joe Jin <joe.jin@oracle.com>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Rajan Shanmugavelu <rajan.shanmugavelu@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-03-11 23:07:57 -04:00
Himanshu Madhani 4cbca7ea9e scsi: qla2xxx: Update driver version to 10.01.00.25-k
Link: https://lore.kernel.org/r/20200226224022.24518-19-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-28 20:32:37 -05:00
Quinn Tran ad8a260aa8 scsi: qla2xxx: Set Nport ID for N2N
When transitioning from loop to N2N, stale NPort ID is not
re-assigned. Stale ID can collide with remote device.  This patch will
re-assign NPort ID on N2N is detected.

Link: https://lore.kernel.org/r/20200226224022.24518-18-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>
2020-02-28 20:32:37 -05:00
Arun Easi 3d582b3499 scsi: qla2xxx: Handle NVME status iocb correctly
Certain state flags bit combinations are not checked and not handled
correctly. Plus, do not log a normal underrun situation where there is
no frame drop.

Link: https://lore.kernel.org/r/20200226224022.24518-17-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-28 20:32:36 -05:00
Quinn Tran 3e4615a292 scsi: qla2xxx: Remove restriction of FC T10-PI and FC-NVMe
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>
2020-02-28 20:32:36 -05:00
Quinn Tran 11efe8755d scsi: qla2xxx: Serialize fc_port alloc in N2N
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>
2020-02-28 20:32:35 -05:00
Quinn Tran ab391abdc1 scsi: qla2xxx: Fix NPIV instantiation after FW dump
NPIV re-enable code was blocked after FW had been initialized.  The
blocking check was too broad. Reduce the check to make sure if FW is
initialized or not.

Link: https://lore.kernel.org/r/20200226224022.24518-14-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>
2020-02-28 20:32:35 -05:00
Quinn Tran 770538c301 scsi: qla2xxx: Fix RDP respond data format
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>
2020-02-28 20:32:34 -05:00
Quinn Tran cad9c2d28e scsi: qla2xxx: Force semaphore on flash validation failure
For single port 28XX adapter, the second core can still run in the
background.  The flash semaphore can be held by the non-active core.
This patch tell MPI FW to check for this case and clear the semaphore
from the non-active core.

Link: https://lore.kernel.org/r/20200226224022.24518-12-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>
2020-02-28 20:32:34 -05:00
Quinn Tran a82c307e69 scsi: qla2xxx: add more FW debug information
Per FW request, MB 1-7 should be logged for 8002 error.

Link: https://lore.kernel.org/r/20200226224022.24518-11-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>
2020-02-28 20:32:33 -05:00
Andrew Vasquez b0f18eee6f scsi: qla2xxx: Update BPM enablement semantics.
commit e4e3a2ce95 ("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>
2020-02-28 20:32:33 -05:00
Quinn Tran ce1ee122e0 scsi: qla2xxx: fix FW resource count values
This patch fixes issue where current and original exchanges count
were swapped for intiator and targets.

Also fix IOCB count for current and original which were swapped.

Link: https://lore.kernel.org/r/20200226224022.24518-9-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>
2020-02-28 20:32:31 -05:00
Andrew Vasquez 7b2a73963c scsi: qla2xxx: Use a dedicated interrupt handler for 'handshake-required' ISPs
There's no point checking flags.disable_msix_handshake in the
interrupt handler hot-path.  Instead perform the check during
queue-pair instantiation and use the proper interrupt handler.

Link: https://lore.kernel.org/r/20200226224022.24518-8-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>
2020-02-28 20:32:30 -05:00
Michael Hernandez 1b81e7f301 scsi: qla2xxx: Return appropriate failure through BSG Interface
This patch ensures flash updates API calls return possible failure
status through BSG interface to the application.

Link: https://lore.kernel.org/r/20200226224022.24518-7-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-28 20:32:29 -05:00
Michael Hernandez 4ba836f686 scsi: qla2xxx: Improved secure flash support messages
This patch improved message for Secure Flash support.  No
functionality has been changed.

Link: https://lore.kernel.org/r/20200226224022.24518-6-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Michael Hernandez <mhernandez@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-28 20:32:29 -05:00
Quinn Tran 8e0e063af0 scsi: qla2xxx: Fix FCP-SCSI FC4 flag passing error
This patch fixes issue where incorrect flag was used for sending
switch commands.

Link: https://lore.kernel.org/r/20200226224022.24518-5-hmadhani@marvell.com
Fixes: e8c72ba51a ("[SCSI] qla2xxx: Use GFF_ID to check FCP-SCSI FC4 type before logging into Nx_Ports")
Fixes: a4239945b8 ("scsi: qla2xxx: Add switch command to simplify fabric discovery")
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>
2020-02-28 20:32:28 -05:00
Giridhar Malavali 37efd51f75 scsi: qla2xxx: Use FC generic update firmware options routine for ISP27xx
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>
2020-02-28 20:32:27 -05:00
Giridhar Malavali 9ef4847a80 scsi: qla2xxx: Avoid setting firmware options twice in 24xx_update_fw_options.
This patch moves ql2xrdpenable check earlier to avoids setting
fw_option once again before exiting qla24xx_update_fw_options.

Link: https://lore.kernel.org/r/20200226224022.24518-3-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>
2020-02-28 20:32:26 -05:00
Himanshu Madhani efd39a2ad6 scsi: qla2xxx: Add 16.0GT for PCI String
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>
2020-02-28 20:32:25 -05:00
Bart Van Assche c25eb70a10 scsi: qla2xxx: Convert MAKE_HANDLE() from a define into an inline function
This patch allows sparse to verify the endianness of the arguments passed
to make_handle().

Link: https://lore.kernel.org/r/20200220043441.20504-5-bvanassche@acm.org
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Cc: Daniel Wagner <dwagner@suse.de>
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>
2020-02-28 19:55:01 -05:00
Bart Van Assche 471298cab8 scsi: qla2xxx: Fix sparse warnings triggered by the PCI state checking code
This patch fixes the following sparse warnings:

drivers/scsi/qla2xxx/qla_mbx.c:120:21: warning: restricted pci_channel_state_t degrades to integer
drivers/scsi/qla2xxx/qla_mbx.c:120:37: warning: restricted pci_channel_state_t degrades to integer

>From include/linux/pci.h:

enum pci_channel_state {
	/* I/O channel is in normal state */
	pci_channel_io_normal = (__force pci_channel_state_t) 1,

	/* I/O to channel is blocked */
	pci_channel_io_frozen = (__force pci_channel_state_t) 2,

	/* PCI card is dead */
	pci_channel_io_perm_failure = (__force pci_channel_state_t) 3,
};

Link: https://lore.kernel.org/r/20200220043441.20504-4-bvanassche@acm.org
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
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>
2020-02-28 19:54:59 -05:00
Bart Van Assche 1ee5ac365c scsi: qla2xxx: Suppress endianness complaints in qla2x00_configure_local_loop()
Instead of changing endianness in-place, write the data in CPU endian
format in another buffer and copy that buffer back. This patch does not
change any functionality but silences some sparse endianness warnings.

Link: https://lore.kernel.org/r/20200220043441.20504-3-bvanassche@acm.org
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
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>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-28 19:54:59 -05:00
Bart Van Assche c81ef0ed44 scsi: qla2xxx: Simplify the code for aborting SCSI commands
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>
2020-02-28 19:54:58 -05:00
Himanshu Madhani 0a36fd6cef scsi: qla2xxx: Fix sparse warning reported by kbuild bot
this patch fixes following sparse warnings

 >> drivers/scsi/qla2xxx/qla_tmpl.c:873:32: sparse: sparse: incorrect type in assignment (different base types)
 >> drivers/scsi/qla2xxx/qla_tmpl.c:873:32: sparse:    expected unsigned int [usertype] capture_timestamp
 >> drivers/scsi/qla2xxx/qla_tmpl.c:873:32: sparse:    got restricted __le32 [usertype]
    drivers/scsi/qla2xxx/qla_tmpl.c:885:29: sparse: sparse: incorrect type in assignment (different base types)
 >> drivers/scsi/qla2xxx/qla_tmpl.c:885:29: sparse:    expected unsigned int

  vim +873 drivers/scsi/qla2xxx/qla_tmpl.c

  869
  870	static void
  871	qla27xx_time_stamp(struct qla27xx_fwdt_template *tmp)
  872	{
> 873		tmp->capture_timestamp = cpu_to_le32(jiffies);
  874	}
  875
  876	static void
  877	qla27xx_driver_info(struct qla27xx_fwdt_template *tmp)
  878	{
  879		uint8_t v[] = { 0, 0, 0, 0, 0, 0 };
  880
  881		WARN_ON_ONCE(sscanf(qla2x00_version_str,
  882				    "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu",
  883				    v+0, v+1, v+2, v+3, v+4, v+5) != 6);
  884
> 885		tmp->driver_info[0] = cpu_to_le32(
  886			v[3] << 24 | v[2] << 16 | v[1] << 8 | v[0]);
  887		tmp->driver_info[1] = cpu_to_le32(v[5] << 8 | v[4]);
  888		tmp->driver_info[2] = __constant_cpu_to_le32(0x12345678);
  889	}
  890

Link: https://lore.kernel.org/r/20200227201148.13973-1-hmadhani@marvell.com
Fixes: a31056ddc6 ("scsi: qla2xxx: Use endian macros to assign static fields in fwdump header")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-28 19:49:00 -05:00
Himanshu Madhani 1939295a8d scsi: qla2xxx: Update driver version to 10.01.00.24-k
Link: https://lore.kernel.org/r/20200212214436.25532-26-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24 12:34:30 -05:00
Himanshu Madhani 0fc5b7e623 scsi: qla2xxx: Use QLA_FW_STOPPED macro to propagate flag
This patch uses QLA_FW_STOPPED macro so that flag is propogated to all the
QPairs.

Link: https://lore.kernel.org/r/20200212214436.25532-25-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24 12:34:29 -05:00
Himanshu Madhani 345f574dac scsi: qla2xxx: Add fixes for mailbox command
This patch fixes:

- qla2x00_issue_iocb_timeout will now return if chip is down

- only check for sp->qpair in abort handling

Link: https://lore.kernel.org/r/20200212214436.25532-24-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24 12:34:29 -05:00
Himanshu Madhani 419ae5fe73 scsi: qla2xxx: Fix control flags for login/logout IOCB
This patch fixes control flag options for login/logout IOCB.

Link: https://lore.kernel.org/r/20200212214436.25532-23-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24 12:34:29 -05:00
Himanshu Madhani d26a8982c9 scsi: qla2xxx: Save rscn_gen for new fcport
Add missing rscn_gen when creating new fcport.

Link: https://lore.kernel.org/r/20200212214436.25532-22-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24 12:34:29 -05:00
Quinn Tran 8d4926d130 scsi: qla2xxx: Use correct ISP28xx active FW region
For ISP28xx, use 28xx call to retrieve active FW region.

Link: https://lore.kernel.org/r/20200212214436.25532-21-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>
2020-02-24 12:34:29 -05:00
Joe Carnuccio cbe729a63d scsi: qla2xxx: Print portname for logging in qla24xx_logio_entry()
Add port name in the messages file to help debugging of Login/Logout IOCBs

Link: https://lore.kernel.org/r/20200212214436.25532-20-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>
2020-02-24 12:34:29 -05:00
Joe Carnuccio 83cfd3dc00 scsi: qla2xxx: Fix qla2x00_echo_test() based on ISP type
Ths patch fixes MBX in-direction for setting right bits for
qla2x00_echo_test()

Link: https://lore.kernel.org/r/20200212214436.25532-19-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>
2020-02-24 12:34:29 -05:00
Joe Carnuccio 64d21b3141 scsi: qla2xxx: Correction to selection of loopback/echo test
This fixes loopback and echo test options.

Link: https://lore.kernel.org/r/20200212214436.25532-18-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>
2020-02-24 12:34:29 -05:00
Joe Carnuccio a31056ddc6 scsi: qla2xxx: Use endian macros to assign static fields in fwdump header
This takes care of big endian architectures.

Link: https://lore.kernel.org/r/20200212214436.25532-17-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>
2020-02-24 12:34:29 -05:00
Himanshu Madhani 84f7d2e7b1 scsi: qla2xxx: Fix RDP response size
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>
2020-02-24 12:34:29 -05:00
Joe Carnuccio 4879237cd2 scsi: qla2xxx: Handle cases for limiting RDP response payload length
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>
2020-02-24 12:34:28 -05:00
Joe Carnuccio 576bfde80b scsi: qla2xxx: Add deferred queue for processing ABTS and RDP
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>
2020-02-24 12:34:28 -05:00
Joe Carnuccio 09e382bc3d scsi: qla2xxx: Cleanup ELS/PUREX iocb fields
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>
2020-02-24 12:34:28 -05:00
Himanshu Madhani 8b01e4db83 scsi: qla2xxx: Show correct port speed capabilities for RDP command
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>
2020-02-24 12:34:28 -05:00
Himanshu Madhani 75666f4a8c scsi: qla2xxx: Display message for FCE enabled
During Link up phase and Data rate MBX command response, print message
indicating FCE is enabled.

Link: https://lore.kernel.org/r/20200212214436.25532-11-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-24 12:34:28 -05:00
Joe Carnuccio 52bfb089d9 scsi: qla2xxx: Add vendor extended FDMI commands
This patch adds support for extended FDMI commands and cleans up code to
reduce duplication.

Link: https://lore.kernel.org/r/20200212214436.25532-10-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>
2020-02-24 12:34:28 -05:00
Joe Carnuccio bd7de0b1c3 scsi: qla2xxx: Add ql2xrdpenable module parameter for RDP
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>
2020-02-24 12:34:28 -05:00
Joe Carnuccio d83a80ee57 scsi: qla2xxx: Add vendor extended RDP additions and amendments
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>
2020-02-24 12:34:27 -05:00
Joe Carnuccio 818c7f87a1 scsi: qla2xxx: Add changes in preparation for vendor extended FDMI/RDP
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>
2020-02-24 12:34:27 -05:00
Joe Carnuccio 974c086045 scsi: qla2xxx: Add endianizer macro calls to fc host stats
This patch fixes endian warning for fc_host_stats.

Link: https://lore.kernel.org/r/20200212214436.25532-6-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>
2020-02-24 12:34:27 -05:00
Joe Carnuccio e6ad2b79b8 scsi: qla2xxx: Add sysfs node for D-Port Diagnostics AEN data
This patch adds sysfs node to show D-Port diag data.

Link: https://lore.kernel.org/r/20200212214436.25532-4-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>
2020-02-21 18:31:00 -05:00
Joe Carnuccio 054f438241 scsi: qla2xxx: Move free of fcport out of interrupt context
This patch moves freeing of fcport out of interrupt context.

Link: https://lore.kernel.org/r/20200212214436.25532-3-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>
2020-02-21 18:30:59 -05:00
Joe Carnuccio 07553b1e83 scsi: qla2xxx: Add beacon LED config sysfs interface
This patch provides an interface to do the following (using MBC 0x3B):

 - Displays (in hex) the LED config words for all three LEDs.

 - Programs the config words for one LED or for all three LEDs.

The sysfs node defined is named beacon_config.

First, to allow driver to gain LED control, do this:
 # echo 1 > /sys/class/scsi_host/host#/beacon

Then, to display config words for all three LEDs do this:
 # cat /sys/class/scsi_host/host#/beacon_config

To set config words for all three LEDs do this:
 # echo 3 xxxx yyyy zzzz > /sys/class/scsi_host/host#/beacon_config

Or, to set config word for a specific single LED n do this:
 # echo n xxxx > /sys/class/scsi_host/host#/beacon_config
  where n is the LED number (0, 1, 2)

Finally, to restore LED control back to firmware, do this:
 # echo 0 > /sys/class/scsi_host/host#/beacon

Link: https://lore.kernel.org/r/20200212214436.25532-2-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>
2020-02-21 18:30:59 -05:00
Bart Van Assche 2494c2868d scsi: qla2xxx: Check locking assumptions at runtime in qla2x00_abort_srb()
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>
2020-02-10 22:46:55 -05:00
Bart Van Assche 80363e1b67 scsi: tcm_qla2xxx: Make qlt_alloc_qfull_cmd() set cmd->se_cmd.map_tag
Reduce code duplication by introducing the tcm_qla2xxx_{get,rel}_cmd()
functions. Introduce these functions in the tcm_qla2xxx.c source files such
that the qla_target.c source file becomes independent of the SCSI target
core header files. This patch fixes a bug, namely by ensuring that
qlt_alloc_qfull_cmd() sets cmd->se_cmd.map_tag.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Link: https://lore.kernel.org/r/20200103192719.205158-1-bvanassche@acm.org
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>
2020-02-10 22:46:54 -05:00
Linus Torvalds fdfa3a6778 SCSI misc on 20200208
Five small patches, all in drivers or doc, which missed the initial
 pull request. The qla2xxx and megaraid_sas are actual fixes and the
 rest are spelling and doc 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 misc SCSI fixes from James Bottomley:
 "Five small patches, all in drivers or doc, which missed the initial
  pull request.

  The qla2xxx and megaraid_sas are actual fixes and the rest are
  spelling and doc changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: fix spelling mistake "initilized" -> "initialized"
  scsi: pm80xx: fix spelling mistake "to" -> "too"
  scsi: MAINTAINERS: ufs: remove pedrom.sousa@synopsys.com
  scsi: megaraid_sas: fixup MSIx interrupt setup during resume
  scsi: qla2xxx: Fix unbound NVME response length
2020-02-08 17:24:41 -08:00
Arun Easi 00fe717ee1 scsi: qla2xxx: Fix unbound NVME response length
On certain cases when response length is less than 32, NVME response data
is supplied inline in IOCB. This is indicated by some combination of state
flags. There was an instance when a high, and incorrect, response length
was indicated causing driver to overrun buffers. Fix this by checking and
limiting the response payload length.

Fixes: 7401bc18d1 ("scsi: qla2xxx: Add FC-NVMe command handling")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200124045014.23554-1-hmadhani@marvell.com
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-30 10:31:47 -05:00
Linus Torvalds 33c84e89ab SCSI misc on 20200129
This series is slightly unusual because it includes Arnd's compat
 ioctl tree here:
 
 1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue
 
 Excluding Arnd's changes, this is mostly an update of the usual
 drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas.  There
 are a couple of core and base updates around error propagation and
 atomicity in the attribute container base we use for the SCSI
 transport classes.  The rest is minor changes 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:
 "This series is slightly unusual because it includes Arnd's compat
  ioctl tree here:

    1c46a2cf2d Merge tag 'block-ioctl-cleanup-5.6' into 5.6/scsi-queue

  Excluding Arnd's changes, this is mostly an update of the usual
  drivers: megaraid_sas, mpt3sas, qla2xxx, ufs, lpfc, hisi_sas.

  There are a couple of core and base updates around error propagation
  and atomicity in the attribute container base we use for the SCSI
  transport classes.

  The rest is minor changes and updates"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (149 commits)
  scsi: hisi_sas: Rename hisi_sas_cq.pci_irq_mask
  scsi: hisi_sas: Add prints for v3 hw interrupt converge and automatic affinity
  scsi: hisi_sas: Modify the file permissions of trigger_dump to write only
  scsi: hisi_sas: Replace magic number when handle channel interrupt
  scsi: hisi_sas: replace spin_lock_irqsave/spin_unlock_restore with spin_lock/spin_unlock
  scsi: hisi_sas: use threaded irq to process CQ interrupts
  scsi: ufs: Use UFS device indicated maximum LU number
  scsi: ufs: Add max_lu_supported in struct ufs_dev_info
  scsi: ufs: Delete is_init_prefetch from struct ufs_hba
  scsi: ufs: Inline two functions into their callers
  scsi: ufs: Move ufshcd_get_max_pwr_mode() to ufshcd_device_params_init()
  scsi: ufs: Split ufshcd_probe_hba() based on its called flow
  scsi: ufs: Delete struct ufs_dev_desc
  scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add_wlus() fails
  scsi: ufs-mediatek: enable low-power mode for hibern8 state
  scsi: ufs: export some functions for vendor usage
  scsi: ufs-mediatek: add dbg_register_dump implementation
  scsi: qla2xxx: Fix a NULL pointer dereference in an error path
  scsi: qla1280: Make checking for 64bit support consistent
  scsi: megaraid_sas: Update driver version to 07.713.01.00-rc1
  ...
2020-01-29 18:16:16 -08:00
Bart Van Assche 17c5f65db6 scsi: qla2xxx: Fix a NULL pointer dereference in an error path
This patch fixes the following Coverity complaint:

FORWARD_NULL

qla_init.c: 5275 in qla2x00_configure_local_loop()
5269
5270     		if (fcport->scan_state == QLA_FCPORT_FOUND)
5271     			qla24xx_fcport_handle_login(vha, fcport);
5272     	}
5273
5274     cleanup_allocation:
>>>     CID 353340:    (FORWARD_NULL)
>>>     Passing null pointer "new_fcport" to "qla2x00_free_fcport", which dereferences it.
5275     	qla2x00_free_fcport(new_fcport);
5276
5277     	if (rval != QLA_SUCCESS) {
5278     		ql_dbg(ql_dbg_disc, vha, 0x2098,
5279     		    "Configure local loop error exit: rval=%x.\n", rval);
5280     	}
qla_init.c: 5275 in qla2x00_configure_local_loop()
5269
5270     		if (fcport->scan_state == QLA_FCPORT_FOUND)
5271     			qla24xx_fcport_handle_login(vha, fcport);
5272     	}
5273
5274     cleanup_allocation:
>>>     CID 353340:    (FORWARD_NULL)
>>>     Passing null pointer "new_fcport" to "qla2x00_free_fcport", which dereferences it.
5275     	qla2x00_free_fcport(new_fcport);
5276
5277     	if (rval != QLA_SUCCESS) {
5278     		ql_dbg(ql_dbg_disc, vha, 0x2098,
5279     		    "Configure local loop error exit: rval=%x.\n", rval);
5280     	}

Fixes: 3dae220595 ("scsi: qla2xxx: Use common routine to free fcport struct")
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/20200118042056.32232-1-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-20 18:38:20 -05:00
Christoph Hellwig 4bdc0d676a remove ioremap_nocache and devm_ioremap_nocache
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2020-01-06 09:45:59 +01:00
Bart Van Assche a9c4ae1086 scsi: qla2xxx: Use get_unaligned_*() instead of open-coding these functions
This patch improves readability and 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/20191219005050.40193-1-bvanassche@acm.org
Reviewed-by: Daniel Wagner <dwagner@suse.de>
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>
2020-01-02 21:53:31 -05:00
Bart Van Assche 3f5f7335e5 scsi: qla2xxx: Fix the endianness of the qla82xx_get_fw_size() return type
Since qla82xx_get_fw_size() returns a number in CPU-endian format, change
its return type from __le32 into u32. This patch does not change any
functionality.

Fixes: 9c2b297572 ("[SCSI] qla2xxx: Support for loading Unified ROM Image (URI) format firmware file.")
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/20191219004905.39586-1-bvanassche@acm.org
Reviewed-by: Daniel Wagner <dwagner@suse.de>
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>
2020-01-02 21:53:30 -05:00
Bart Van Assche a27747a207 scsi: qla2xxx: Improve readability of the code that handles qla_flt_header
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>
2020-01-02 21:53:30 -05:00
Himanshu Madhani 5a2673267a scsi: qla2xxx: Update driver version to 10.01.00.22-k
Link: https://lore.kernel.org/r/20191217220617.28084-15-hmadhani@marvell.com
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-12-21 13:42:41 -05:00
Quinn Tran 641e0efddc scsi: qla2xxx: Fix mtcp dump collection failure
MTCP dump failed due to MB Reg 10 was picking garbage data from stack
memory.

Fixes: 81178772b6 ("[SCSI] qla2xxx: Implemetation of mctp.")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191217220617.28084-14-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>
2019-12-21 13:42:41 -05:00