- Oct 25, 2019
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Luo Jiaxing authored
Create a file structure which was used to save the memory address and CQ pointer for CQ at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it need. Link: https://lore.kernel.org/r/1571926105-74636-7-git-send-email-john.garry@huawei.com Signed-off-by:
Luo Jiaxing <luojiaxing@huawei.com> Signed-off-by:
John Garry <john.garry@huawei.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Luo Jiaxing authored
It's useful to know when the dump occurred, so add a timestamp file for this. Link: https://lore.kernel.org/r/1571926105-74636-6-git-send-email-john.garry@huawei.com Signed-off-by:
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Xiang Chen authored
For IOs from upper layer, preemption may be disabled as it may be called by function __blk_mq_delay_run_hw_queue which will call get_cpu() (it disables preemption). So if flags HISI_SAS_REJECT_CMD_BIT is set in function hisi_sas_task_exec(), it may disable preempt twice after down() and up() which will cause following call trace: BUG: scheduling while atomic: fio/60373/0x00000002 Call trace: dump_backtrace+0x0/0x150 show_stack+0x24/0x30 dump_stack+0xa0/0xc4 __schedule_bug+0x68/0x88 __schedule+0x4b8/0x548 schedule+0x40/0xd0 schedule_timeout+0x200/0x378 __down+0x78/0xc8 down+0x54/0x70 hisi_sas_task_exec.isra.10+0x598/0x8d8 [hisi_sas_main] hisi_sas_queue_command+0x28/0x38 [hisi_sas_main] sas_queuecommand+0x168/0x1b0 [libsas] scsi_queue_rq+0x2ac/0x980 blk_mq_dispatch_rq_list+0xb0/0x550 blk_mq_do_dispatch_sched+0x6c/0x110 blk_mq_sched_dispatch_requests+0x114/0x1d8 __blk_mq_run_hw_queue+0xb8/0x130 __blk_mq_delay_run_hw_queue+0x1c0/0x220 blk_mq_run_hw_queue+0xb0/0x128 blk_mq_sched_insert_requests+0xdc/0x208 blk_mq_flush_plug_list+0x1b4/0x3a0 blk_flush_plug_list+0xdc/0x110 blk_finish_plug+0x3c/0x50 blkdev_direct_IO+0x404/0x550 generic_file_read_iter+0x9c/0x848 blkdev_read_iter+0x50/0x78 aio_read+0xc8/0x170 io_submit_one+0x1fc/0x8d8 __arm64_sys_io_submit+0xdc/0x280 el0_svc_common.constprop.0+0xe0/0x1e0 el0_svc_handler+0x34/0x90 el0_svc+0x10/0x14 ... To solve the issue, check preemptible() to avoid disabling preempt multiple when flag HISI_SAS_REJECT_CMD_BIT is set. Link: https://lore.kernel.org/r/1571926105-74636-5-git-send-email-john.garry@huawei.com Signed-off-by:
Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by:
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Xiang Chen authored
When injecting 2bit ecc errors, it will cause confusion inside SAS controller which needs host reset to recover it. If a device is gone at the same times inject 2bit ecc errors, we may not receive the ITCT interrupt so it will wait for completion in clear_itct_v3_hw() all the time. And host reset will also not occur because it can't require hisi_hba->sem, so the system will be suspended. To solve the issue, use wait_for_completion_timeout() instead of wait_for_completion(), and also don't mark the gone device as SAS_PHY_UNUSED when device gone. Link: https://lore.kernel.org/r/1571926105-74636-4-git-send-email-john.garry@huawei.com Signed-off-by:
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Xiang Chen authored
If set the BIST init value after enabling BIST, there may be still some few error bits. According to the process, need to set the BIST init value before enabling BIST. Fixes: 97b151e7 ("scsi: hisi_sas: Add BIST support for phy loopback") Link: https://lore.kernel.org/r/1571926105-74636-3-git-send-email-john.garry@huawei.com Signed-off-by:
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Xiang Chen authored
Due to a merge error, we attempt to create 2x debugfs dump folders, which fails: [ 861.101914] debugfs: Directory 'dump' with parent '0000:74:02.0' already present! This breaks the dump function. To fix, remove the superfluous attempt to create the folder. Fixes: 7ec7082c ("scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation") Link: https://lore.kernel.org/r/1571926105-74636-2-git-send-email-john.garry@huawei.com Signed-off-by:
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Geert Uytterhoeven authored
Fix misspellings of "disonnect", "reconnect", "connection", "connected", and "disconnection". Link: https://lore.kernel.org/r/20191024152633.30404-1-geert+renesas@glider.be Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Geert Uytterhoeven authored
Fix misspelling of "configuration". Link: https://lore.kernel.org/r/20191024152543.30310-1-geert+renesas@glider.be Signed-off-by:
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Tomas Henzl authored
From an interrupt handler path memory may be allocated using GFP_KERNEL, replace it with GFP_ATOMIC. _base_interrupt->_scsih_io_done->_scsih_smart_predicted_fault Link: https://lore.kernel.org/r/20191024152835.6177-1-thenzl@redhat.com Signed-off-by:
Tomas Henzl <thenzl@redhat.com> Signed-off-by:
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Dan Carpenter authored
This error path is missing an unlock. Fixes: 26780d9e ("[SCSI] esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver") Link: https://lore.kernel.org/r/20191022102324.GA27540@mwanda Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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YueHaibing authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/cxgbi/cxgb4i/cxgb4i.c:2076:15: warning: variable ppmax set but not used [-Wunused-but-set-variable] drivers/target/iscsi/cxgbit/cxgbit_ddp.c:300:15: warning: variable ppmax set but not used [-Wunused-but-set-variable] It is not used since commit a248384e ("cxgb4/libcxgb/cxgb4i/cxgbit: enable eDRAM page pods for iSCSI") Link: https://lore.kernel.org/r/20191021142042.30964-1-yuehaibing@huawei.com Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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Dan Carpenter authored
These are called with IRQs disabled from csio_mgmt_tmo_handler() so we can't call spin_unlock_irq() or it will enable IRQs prematurely. Fixes: a3667aae ("[SCSI] csiostor: Chelsio FCoE offload driver") Link: https://lore.kernel.org/r/20191019085913.GA14245@mwanda Signed-off-by:
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Saurav Girepunje authored
Replace assignment of 0 to pointer with NULL assignment. Link: https://lore.kernel.org/r/20191024030857.GA12097@saurav Signed-off-by:
Saurav Girepunje <saurav.girepunje@gmail.com> Acked-by:
Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by:
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Saurav Girepunje authored
Replace assignment of 0 to pointer with NULL assignment. Link: https://lore.kernel.org/r/20191024025726.GA31421@saurav Signed-off-by:
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James Smart authored
Update lpfc version to 12.6.0.0 Link: https://lore.kernel.org/r/20191018211832.7917-17-jsmart2021@gmail.com Signed-off-by:
James Smart <jsmart2021@gmail.com> Signed-off-by:
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James Smart authored
When debugging a recent discovery customer problem it was very hard to tell what was happening with the existing discovery log messages. To fully debug the issue additional log messages were necessary. Add or extend log messages so that sufficient information is present for debugging. Link: https://lore.kernel.org/r/20191018211832.7917-16-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
In the past, the lpe32000 models, based their main support being for 32G, and as FC-AL is not supported in the FC standards past 8G, did not support FC-AL operation. This patch adds private-loop FC-AL support for the LPE32000 adapters when a link is 8G or below. To avoid conditions where link rate may change, which would cause non-connectivity to the AL device, FC-AL mode must become a persistent setting and the link kept at a speed supporting FC-AL. The patch: - Adds a pls attribute indicating whether the adapter properly supports FC-AL. - Adds support for the adapter to indicate that topology should be fixed and the topology types to be configured. - Adds a pt attribute to report the persistent topology if present. Link: https://lore.kernel.org/r/20191018211832.7917-15-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Add decode support for adapter Async Events which report FA-WWN configuration errors. Link: https://lore.kernel.org/r/20191018211832.7917-14-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Add two new macros to aid in message logging: Both macros print a message if the corresponding lpfc verbosity setting is set or the kernel log level is WARNING or more critical. One macro is for use with a phba structure, the other with a vport structure. [mkp: typo] Link: https://lore.kernel.org/r/20191018211832.7917-13-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Currently, the FW logging facility is a load/boot time parameter which requires the driver to be unloaded/reloaded or the system rebooted in order to change its configuration. Convert the logging facility to allow dynamic enablement and configuration. Specifically: - Convert the feature so that it can be enabled dynamically via an attribute. Additionally, the size of the buffer can be configured dynamically. - Add locks around states that now may be changing. - Tie the feature into debugfs so that the logs can be read at any time. Link: https://lore.kernel.org/r/20191018211832.7917-12-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
The existing "auto eq delay" mechanism was sometimes skipping over an EQ, not ramping the coalescing down under light load fast enough, and in other cases never kicked in as cpu sharing by multiple vectors didn't quite add up right. Tweak the interrupt mechanism such that: - Add a flag to the EQ to force checking for colaescing values when being serviced in the interrupt handler. The flag will be set by any CQ bound to the EQ whenever the number of CQ elements process in a single scan meets or exceeds the hardware queue notify level. E.g. there's a significant number of completions happening. - In the heartbeat work item that checks coalescing: - Replace the structure that was counting the number of EQs that interrupted on a single cpu with a new structure that looks at the EQ to see whether EQ currently has a coalescing value (thus it should be re-evaluate) or was marked by the new flag indicating heavy completions. - When a cpu, which may be servicing multiple vectors, had at least 1 EQ that should be checked, a new coalescing delay is calculated based on the number of interrupts that occurred on the cpu. - The new coalescing value is then applied to the EQs that had interrupted on the cpu. Link: https://lore.kernel.org/r/20191018211832.7917-11-jsmart2021@gmail.com Signed-off-by: -
James Smart authored
Lower IOps performance with write operations. Perf tool shows lock contention in dma_pool_alloc and dma_pool_free related to the txrdy_payload_pool. The allocations are for dma buffers for XFER_RDY's, which actually are not needed for the FCP_TRECEIVE command as the command contents are used by the adapter to generate the IU. Remove the allocations and the associated buffer pool. Rather than leaving NULLs in buffer pointer locations, set command and sgl to indicate skipped SGLE indexes. Link: https://lore.kernel.org/r/20191018211832.7917-10-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Slightly rework some error check code paths for better streamlining. Added compiler unlikely hints to allow slightly better optimization of the fast-path. Removed a few pointer checks that were obviously already valid. Link: https://lore.kernel.org/r/20191018211832.7917-9-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Log message conditional upon vport being NULL dereferences vport to determine log verbose setting. Changed to use lpfc_print_log which uses phba to determine the active log verbose setting. Fixes: 43bfea1b ("scsi: lpfc: Fix coverity errors on NULL pointer checks") Link: https://lore.kernel.org/r/20191018211832.7917-8-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
In lpfc_abort_handler, the lock acquire order is hbalock (irqsave), buf_lock (irq) and ring_lock (irq). The issue is that in two places the locks are released out of order - the buf_lock and the hbalock - resulting in the cpu preemption/lock flags getting restored out of order and deadlocking the cpu. Fix the unlock order by fully releasing the hbalocks as well. CC: Zhangguanghui <zhang.guanghui@h3c.com> Link: https://lore.kernel.org/r/20191018211832.7917-7-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
In cases where I/O may be aborted, such as driver unload or link bounces, the system will crash based on a bad ndlp pointer. Example: RIP: 0010:lpfc_sli4_abts_err_handler+0x15/0x140 [lpfc] ... lpfc_sli4_io_xri_aborted+0x20d/0x270 [lpfc] lpfc_sli4_sp_handle_abort_xri_wcqe.isra.54+0x84/0x170 [lpfc] lpfc_sli4_fp_handle_cqe+0xc2/0x480 [lpfc] __lpfc_sli4_process_cq+0xc6/0x230 [lpfc] __lpfc_sli4_hba_process_cq+0x29/0xc0 [lpfc] process_one_work+0x14c/0x390 Crash was caused by a bad ndlp address passed to I/O indicated by the XRI aborted CQE. The address was not NULL so the routine deferenced the ndlp ptr. The bad ndlp also caused the lpfc_sli4_io_xri_aborted to call an erroneous io handler. Root cause for the bad ndlp was an lpfc_ncmd that was aborted, put on the abort_io list, completed, taken off the abort_io list, sent to lpfc_release_nvme_buf where it was put back on the abort_io list because the lpfc_ncmd->flags setting LPFC_SBUF_XBUSY was not cleared on the final completion. Rework the exchange busy handling to ensure the flags are properly set for both scsi and nvme. Fixes: c490850a ("scsi: lpfc: Adapt partitioned XRI lists to efficient sharing") Cc: <stable@vger.kernel.org> # v5.1+ Link: https://lore.kernel.org/r/20191018211832.7917-6-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
When operating in private loop mode, PLOGI exchanges are racing and the driver tries to abort it's PLOGI. But the PLOGI abort ends up terminating the login with the other end causing the other end to abort its PLOGI as well. Discovery never fully completes. Fix by disabling the PLOGI abort when private loop and letting the state machine play out. Link: https://lore.kernel.org/r/20191018211832.7917-5-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Fix lockdep error in __lpfc_sli_ringtx_put(): The hbalock is valid for sli3, but not for sli4. Change lockdep to look at ring lock if sli4. Also update comment in __lpfc_sli_issue_iocb_s4() to reflect proper lock. Note: lockdep check is already correct. Link: https://lore.kernel.org/r/20191018211832.7917-4-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
When the adapter FW is administratively set to RO mode, a FW update triggered by the driver's sysfs attribute will fail. Currently, the driver's logging mechanism does not properly parse the adapter return codes and print a meaningful message. This oversight prevents quick diagnosis in the field. Parse the adapter return codes for Write_Object and write an appropriate message to the system console. [mkp: typo] Link: https://lore.kernel.org/r/20191018211832.7917-3-jsmart2021@gmail.com Signed-off-by:
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James Smart authored
Currently, lpfc_nvmet_mrq is always scaled back to the min(lpfc_nvmet_mrq, lpfc_irq_chann). There's no reason to reduce it to the number of interrupt vectors. Rather, it should be scaled down based on the number of hardware queues for the system (if lower than max of 16). Change scaling to use hardware queue count rather than interrupt vector count. Link: https://lore.kernel.org/r/20191018211832.7917-2-jsmart2021@gmail.com Signed-off-by:
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- Oct 23, 2019
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YueHaibing authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/scsi/cxlflash/main.c:47:22: warning: variable ioarcb set but not used [-Wunused-but-set-variable] It is never used, so can be removed. Link: https://lore.kernel.org/r/20191021141957.18828-1-yuehaibing@huawei.com Signed-off-by:
Matthew R. Ochs <mrochs@linux.ibm.com> Signed-off-by:
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David Disseldorp authored
Reviewed-by:
Mike Christie <mchristi@redhat.com> Signed-off-by:
David Disseldorp <ddiss@suse.de> Link: https://lore.kernel.org/r/20190912095547.22427-4-ddiss@suse.de Signed-off-by:
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David Disseldorp authored
strncmp is currently used for "SendTargets" key and "All" value matching without checking for trailing garbage. This means that Text request PDUs with garbage such as "SendTargetsPlease=All" and "SendTargets=Alle" are processed successfully as if they were "SendTargets=All" requests. Reviewed-by:
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David Disseldorp authored
RFC 2307 states: For CHAP [RFC1994], in the first step, the initiator MUST send: CHAP_A=<A1,A2...> Where A1,A2... are proposed algorithms, in order of preference. ... For the Algorithm, as stated in [RFC1994], one value is required to be implemented: 5 (CHAP with MD5) LIO currently checks for this value by only comparing a single byte in the tokenized Algorithm string, which means that any value starting with a '5' (e.g. "55") is interpreted as "CHAP with MD5". Fix this by comparing the entire tokenized string. Reviewed-by:Lee Duncan <lduncan@suse.com> Reviewed-by:
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- Oct 19, 2019
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Balsundar P authored
Bump version to 50877. Link: https://lore.kernel.org/r/1571120524-6037-8-git-send-email-balsundar.p@microsemi.com Signed-off-by:
Balsundar P <balsundar.p@microsemi.com> Signed-off-by:
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Balsundar P authored
After IOP reset completion, AIF request command is not issued to the controller. Driver schedules a worker thread to issue a AIF request command after IOP reset completion. [mkp: fix zeroday warning] Link: https://lore.kernel.org/r/1571120524-6037-7-git-send-email-balsundar.p@microsemi.com Acked-by:
Balsundar P < <Balsundar.P@microchip.com> Signed-off-by:
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Balsundar P authored
Currently driver waits for the command IOCTL from the firmware and if the firmware enters nonresponsive state, the driver doesn't respond till the firmware is responsive again. Check that firmware is alive, otherwise return -EBUSY. [mkp: clarified commit desc] Link: https://lore.kernel.org/r/1571120524-6037-6-git-send-email-balsundar.p@microsemi.com Signed-off-by:
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Balsundar P authored
Set 180 second timeout for thor and 60 seconds for src controllers. Link: https://lore.kernel.org/r/1571120524-6037-5-git-send-email-balsundar.p@microsemi.com Signed-off-by:
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Balsundar P authored
Before issuing IOP reset, INTX mode is selected. This is triggering MSGU lockup and ended in basecode assert. Use DROP_IO command when IOP reset is sent in preparation for interrupt mode switch. Link: https://lore.kernel.org/r/1571120524-6037-4-git-send-email-balsundar.p@microsemi.com Signed-off-by:
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Balsundar P authored
The problem is the driver detects FastResponse bit set and saves it to Fib's flags to not check IO response status, but it never clears it for next IO. Hence the next IO will pick up FastResponse bit to not check the IO response status and fail to report any type IO error to kernel Link: https://lore.kernel.org/r/1571120524-6037-3-git-send-email-balsundar.p@microsemi.com Signed-off-by:
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