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2019-03-28scsi: qedf: Add additional checks for io_req->sc_cmd validityChad Dupuis1-2/+37
- Check the validity of various pointers before processing. Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: fixup bit operationsHannes Reinecke2-1/+8
test_bit() is atomic, test_bit() || test_bit() is not. So protect consecutive bit tests with a lock to avoid races. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: fixup locking in qedf_restart_rport()Hannes Reinecke1-1/+7
fc_rport_create() needs to be called with disc_mutex held. And we should re-assign the 'rdata' pointer in case it got changed. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: missing kref_put in qedf_xmit()Hannes Reinecke1-1/+3
qedf_xmit() calls fc_rport_lookup(), but discards the returned rdata structure almost immediately without decreasing the refcount. This leads to a refcount leak and the rdata never to be freed. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Check for link state before processing LL2 packets and send ↵Saurav Kashyap2-6/+28
fipvlan retries - Check if link is UP before sending and processing any packets on wire. Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Add missing fc_disc_init call after allocating lportChad Dupuis1-0/+2
When receiving an unsolicited frame we could crash on a list traversal in fc_rport_lookup while searching the rport which is associated with our lport. Initialize the lport's discovery node after allocating the lport in __qedf_probe(). Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Correct the memory barriers in qedf_ring_doorbellAndrew Vasquez1-2/+10
- Correct memory barriers to make sure all cmnds are flushed. Signed-off-by: Andrew Vasquez <andrewv@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Use a separate completion for cleanup commandsChad Dupuis2-4/+8
- If a TMF and cleanup are issued at the same time they could cause a call trace if issued against the same xid as the io_req->tm_done completion is used for both. - Set and clear cleanup bit in cleanup routine. Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Modify abort and tmf handler to handle edge condition and flushSaurav Kashyap4-67/+276
An I/O can be in any state when flush is called, it can be in abort, waiting for abort, RRQ send and waiting or TMF send. - HZ can be different on different architecture, correctly set abort timeout value. - Flush can complete the I/Os prematurely, handle refcount for aborted I/Os and for which RRQ is pending. - Differentiate LUN/TARGET reset, as cleanup needs to be send to firmware accordingly. - Add flush mutex to sync cleanup call from abort and flush routine. - Clear abort/outstanding bit on timeout. Signed-off-by: Shyam Sundar <shyam.sundar@marvell.com> Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Modify flush routine to handle all I/Os and TMFShyam Sundar4-26/+277
The purpose of flush routine is to cleanup I/Os to the firmware and complete them to scsi middle layer. This routine is invoked before connection is uploaded because of rport going away. - Don't process any I/Os, aborts, TMFs coming when flush in progress. - Add flags to handle cleanup and release of I/Os because flush can prematurely complete I/Os. - Original command can get completed to driver when cleanup for same is posted to firmware, handle this condition. - Modify flush to handle I/Os in all the states like abort, TMF, RRQ and timeouts. Signed-off-by: Shyam Sundar <ssundar@marvell.com> Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Simplify s/g list mappingChad Dupuis3-94/+40
When mapping the pages from a scatter/gather list from the SCSI layer we only need to follow these rules: - Max SGEs for each I/O request is 256 - No size limit on each SGE - No need to split OS provided SGEs to 4K before sending to firmware. - Slow SGE is applicable only when: - There are > 8 SGEs and any middle SGE is less than a page size (4K) Make necessary changes so that driver follows these rules. Applicable only for Write requests (not for Read requests). No need to check SGE address alignment requirements (first, middle or last) before declaring slow SGE. Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload checkChad Dupuis1-0/+1
Fixes the following crash as the return was missing from the check if an fcport is offloaded. If we hit this code we continue to try to post an invalid task which can lead to the crash: [30259.616411] [0000:61:00.3]:[qedf_post_io_req:989]:3: Session not offloaded yet. [30259.616413] [0000:61:00.3]:[qedf_upload_connection:1340]:3: Uploading connection port_id=490020. [30259.623769] BUG: unable to handle kernel NULL pointer dereference at 0000000000000198 [30259.631645] IP: [<ffffffffc035b1ed>] qedf_init_task.isra.16+0x3d/0x450 [qedf] [30259.638816] PGD 0 [30259.640841] Oops: 0000 [#1] SMP [30259.644098] Modules linked in: fuse xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables devlink ip6table_filter ip6_tables iptable_filter vfat fat ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib ib_ucm ib_umad dm_service_time skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel rpcrdma sunrpc rdma_ucm ib_uverbs lrw gf128mul ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi qedr(OE) glue_helper ablk_helper cryptd ib_core dm_round_robin joydev pcspkr ipmi_ssif ses enclosure ipmi_si ipmi_devintf ipmi_msghandler mei_me [30259.715529] mei sg hpilo hpwdt shpchp wmi lpc_ich acpi_power_meter dm_multipath ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic uas usb_storage mgag200 qedf(OE) i2c_algo_bit libfcoe drm_kms_helper libfc syscopyarea sysfillrect scsi_transport_fc qede(OE) sysimgblt fb_sys_fops ptp ttm pps_core drm qed(OE) smartpqi crct10dif_pclmul crct10dif_common crc32c_intel i2c_core scsi_transport_sas scsi_tgt dm_mirror dm_region_hash dm_log dm_mod [30259.754237] CPU: 9 PID: 977 Comm: kdmwork-253:7 Kdump: loaded Tainted: G W OE ------------ 3.10.0-862.el7.x86_64 #1 [30259.765664] Hardware name: HPE Synergy 480 Gen10/Synergy 480 Gen10 Compute Module, BIOS I42 04/04/2018 [30259.775000] task: ffff8c801efd0000 ti: ffff8c801efd8000 task.ti: ffff8c801efd8000 [30259.782505] RIP: 0010:[<ffffffffc035b1ed>] [<ffffffffc035b1ed>] qedf_init_task.isra.16+0x3d/0x450 [qedf] [30259.792116] RSP: 0018:ffff8c801efdbbb0 EFLAGS: 00010046 [30259.797444] RAX: 0000000000000000 RBX: ffffa7f1450948d8 RCX: ffff8c7fe5bc40c8 [30259.804600] RDX: ffff8c800715b300 RSI: ffffa7f1450948d8 RDI: ffff8c80169c2480 [30259.811755] RBP: ffff8c801efdbc30 R08: 00000000000000ae R09: ffff8c800a314540 [30259.818911] R10: ffff8c7fe5bc40c8 R11: ffff8c801efdb8ae R12: 0000000000000000 [30259.826068] R13: ffff8c800715b300 R14: ffff8c80169c2480 R15: ffff8c8005da28e0 [30259.833223] FS: 0000000000000000(0000) GS:ffff8c803f840000(0000) knlGS:0000000000000000 [30259.841338] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [30259.847100] CR2: 0000000000000198 CR3: 000000081242e000 CR4: 00000000007607e0 [30259.854256] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [30259.861412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [30259.868568] PKRU: 00000000 [30259.871278] Call Trace: [30259.873737] [<ffffffffc035c948>] qedf_post_io_req+0x148/0x680 [qedf] [30259.880201] [<ffffffffc035d070>] qedf_queuecommand+0x1f0/0x240 [qedf] [30259.886749] [<ffffffffa329b050>] scsi_dispatch_cmd+0xb0/0x240 [30259.892600] [<ffffffffa32a45bc>] scsi_request_fn+0x4cc/0x680 [30259.898364] [<ffffffffa3118ad9>] __blk_run_queue+0x39/0x50 [30259.903954] [<ffffffffa3114393>] __elv_add_request+0xd3/0x260 [30259.909805] [<ffffffffa311baf0>] blk_insert_cloned_request+0xf0/0x1b0 [30259.916358] [<ffffffffc010b622>] map_request+0x142/0x220 [dm_mod] [30259.922560] [<ffffffffc010b716>] map_tio_request+0x16/0x40 [dm_mod] [30259.928932] [<ffffffffa2ebb1f5>] kthread_worker_fn+0x85/0x180 [30259.934782] [<ffffffffa2ebb170>] ? kthread_stop+0xf0/0xf0 [30259.940284] [<ffffffffa2ebae31>] kthread+0xd1/0xe0 [30259.945176] [<ffffffffa2ebad60>] ? insert_kthread_work+0x40/0x40 [30259.951290] [<ffffffffa351f61d>] ret_from_fork_nospec_begin+0x7/0x21 [30259.957750] [<ffffffffa2ebad60>] ? insert_kthread_work+0x40/0x40 [30259.963860] Code: fe 41 55 49 89 d5 41 54 53 48 89 f3 48 83 ec 58 4c 8b 67 28 4c 8b 4e 18 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 4c 8b 7e 58 <49> 8b 84 24 98 01 00 00 48 8b 00 f6 80 31 01 00 00 10 0f 85 0b [30259.983372] RIP [<ffffffffc035b1ed>] qedf_init_task.isra.16+0x3d/0x450 [qedf] [30259.990630] RSP <ffff8c801efdbbb0> [30259.994127] CR2: 0000000000000198 Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Correct xid range overlap between offloaded requests and libfc ↵Chad Dupuis3-17/+7
requests There is currently an overlap where exchange IDs between what is used for offloaded commands and by libfc for ELS commands. Correct this so that exchange ID range is: Offloaded requests: 0 to 0xfff libfc requests: 0x1000 to 0xfffe Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-28scsi: qedf: Do not retry ELS request if qedf_alloc_cmd failsChad Dupuis1-12/+4
If we cannot allocate an ELS middlepath request, simply fail instead of trying to delay and then reallocate. This delay logic is causing soft lockup messages: NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [kworker/2:1:7639] Modules linked in: xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun devlink 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 dm_service_time vfat fat rpcrdma sunrpc ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm sb_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support qedr(OE) ib_core joydev ipmi_ssif pcspkr hpilo hpwdt sg ipmi_si ipmi_devintf ipmi_msghandler ioatdma shpchp lpc_ich wmi dca acpi_power_meter dm_multipath ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic qedf(OE) libfcoe mgag200 libfc i2c_algo_bit drm_kms_helper scsi_transport_fc qede(OE) syscopyarea sysfillrect sysimgblt fb_sys_fops ttm qed(OE) drm crct10dif_pclmul e1000e crct10dif_common crc32c_intel scsi_tgt hpsa i2c_core ptp scsi_transport_sas pps_core dm_mirror dm_region_hash dm_log dm_mod CPU: 2 PID: 7639 Comm: kworker/2:1 Kdump: loaded Tainted: G OEL ------------ 3.10.0-861.el7.x86_64 #1 Hardware name: HP ProLiant DL580 Gen9/ProLiant DL580 Gen9, BIOS U17 07/21/2016 Workqueue: qedf_2_dpc qedf_handle_rrq [qedf] task: ffff959edd628fd0 ti: ffff959ed6f08000 task.ti: ffff959ed6f08000 RIP: 0010:[<ffffffff8355913a>] [<ffffffff8355913a>] delay_tsc+0x3a/0x60 RSP: 0018:ffff959ed6f0bd30 EFLAGS: 00000246 RAX: 000000008ef5f791 RBX: 5f646d635f666465 RCX: 0000025b8ededa2f RDX: 000000000000025b RSI: 0000000000000002 RDI: 0000000000217d1e RBP: ffff959ed6f0bd30 R08: ffffffffc079aae8 R09: 0000000000000200 R10: ffffffffc07952c6 R11: 0000000000000000 R12: 6c6c615f66646571 R13: ffff959ed6f0bcc8 R14: ffff959ed6f0bd08 R15: ffff959e00000028 FS: 0000000000000000(0000) GS:ffff959eff480000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4117fa1eb0 CR3: 0000002039e66000 CR4: 00000000003607e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: [<ffffffff8355907d>] __const_udelay+0x2d/0x30 [<ffffffffc079444a>] qedf_initiate_els+0x13a/0x450 [qedf] [<ffffffffc0794210>] ? qedf_srr_compl+0x2a0/0x2a0 [qedf] [<ffffffffc0795337>] qedf_send_rrq+0x127/0x230 [qedf] [<ffffffffc078ed55>] qedf_handle_rrq+0x15/0x20 [qedf] [<ffffffff832b2dff>] process_one_work+0x17f/0x440 [<ffffffff832b3ac6>] worker_thread+0x126/0x3c0 [<ffffffff832b39a0>] ? manage_workers.isra.24+0x2a0/0x2a0 [<ffffffff832bae31>] kthread+0xd1/0xe0 [<ffffffff832bad60>] ? insert_kthread_work+0x40/0x40 [<ffffffff8391f637>] ret_from_fork_nospec_begin+0x21/0x21 [<ffffffff832bad60>] ? insert_kthread_work+0x40/0x40 Signed-off-by: Chad Dupuis <cdupuis@marvell.com> Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-10Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds3-23/+3
Pull SCSI updates from James Bottomley: "This is mostly update of the usual drivers: arcmsr, qla2xxx, lpfc, hisi_sas, target/iscsi and target/core. Additionally Christoph refactored gdth as part of the dma changes. The major mid-layer change this time is the removal of bidi commands and with them the whole of the osd/exofs driver and filesystem. This is a major simplification for block and mq in particular" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (240 commits) scsi: cxgb4i: validate tcp sequence number only if chip version <= T5 scsi: cxgb4i: get pf number from lldi->pf scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c scsi: mpt3sas: Add missing breaks in switch statements scsi: aacraid: Fix missing break in switch statement scsi: kill command serial number scsi: csiostor: drop serial_number usage scsi: mvumi: use request tag instead of serial_number scsi: dpt_i2o: remove serial number usage scsi: st: osst: Remove negative constant left-shifts scsi: ufs-bsg: Allow reading descriptors scsi: ufs: Allow reading descriptor via raw upiu scsi: ufs-bsg: Change the calling convention for write descriptor scsi: ufs: Remove unused device quirks Revert "scsi: ufs: disable vccq if it's not needed by UFS device" scsi: megaraid_sas: Remove a bunch of set but not used variables scsi: clean obsolete return values of eh_timed_out scsi: sd: Optimal I/O size should be a multiple of physical block size scsi: MAINTAINERS: SCSI initiator and target tweaks scsi: fcoe: make use of fip_mode enum complete ...
2019-02-20scsi: fcoe: make use of fip_mode enum completeSedat Dilek1-1/+1
commit 1917d42d14b7 ("fcoe: use enum for fip_mode") introduces a separate enum for the fip_mode that shall be used during initialisation handling until it is passed to fcoe_ctrl_link_up to set the initial fip_state. That change was incomplete and gcc quietly converted in various places between the fip_mode and the fip_state enum values with implicit enum conversions, which fortunately cannot cause any issues in the actual code's execution. clang however warns about these implicit enum conversions in the scsi drivers. This commit consolidates the use of the two enums, guided by clang's enum-conversion warnings. This commit now completes the use of the fip_mode: It expects and uses fip_mode in {bnx2fc,fcoe}_interface_create and fcoe_ctlr_init, and it calls fcoe_ctrl_set_set() with the correct values in fcoe_ctlr_link_up(). It also breaks the association between FIP_MODE_AUTO and FIP_ST_AUTO to indicate these two enums are distinct. Link: https://github.com/ClangBuiltLinux/linux/issues/151 Fixes: 1917d42d14b7 ("fcoe: use enum for fip_mode") Reported-by: Dmitry Golovin <dima@golovin.in> Original-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> CC: Lukas Bulwahn <lukas.bulwahn@gmail.com> CC: Nick Desaulniers <ndesaulniers@google.com> CC: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Tested-by: Nathan Chancellor <natechancellor@gmail.com> Suggested-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-02-06scsi: stop setting up request->specialChristoph Hellwig1-6/+0
No more need in a blk-mq world where the scsi command and request are allocated together. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29scsi: qedf: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-16/+2
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: QLogic-Storage-Upstream@cavium.com Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Manish Rangankar <mrangankar@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08cross-tree: phase out dma_zalloc_coherent()Luis Chamberlain1-12/+17
We already need to zero out memory for dma_alloc_coherent(), as such using dma_zalloc_coherent() is superflous. Phase it out. This change was generated with the following Coccinelle SmPL patch: @ replace_dma_zalloc_coherent @ expression dev, size, data, handle, flags; @@ -dma_zalloc_coherent(dev, size, handle, flags) +dma_alloc_coherent(dev, size, handle, flags) Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> [hch: re-ran the script on the latest tree] Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-12-19scsi: flip the default on use_clusteringChristoph Hellwig1-1/+0
Most SCSI drivers want to enable "clustering", that is merging of segments so that they might span more than a single page. Remove the ENABLE_CLUSTERING define, and require drivers to explicitly set DISABLE_CLUSTERING to disable this feature. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-08scsi: qedf: NULL check before some freeing functions is not neededThomas Meyer1-2/+1
NULL check before some freeing functions is not needed. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-18scsi: qedf: fully convert to the generic DMA APIChristoph Hellwig1-4/+4
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-11scsi: qedf: Send the driver state to MFWSaurav Kashyap1-0/+12
Need to notify firmware when driver is loaded and unloaded. Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com> Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-06-10Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds15-51/+238
Pull SCSI updates from James Bottomley: "This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc, xfcp, hisi_sas, cxlflash, qla2xxx. In the absence of Nic, we're also taking target updates which are mostly minor except for the tcmu refactor. The only real core change to worry about is the removal of high page bouncing (in sas, storvsc and iscsi). This has been well tested and no problems have shown up so far" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits) scsi: lpfc: update driver version to 12.0.0.4 scsi: lpfc: Fix port initialization failure. scsi: lpfc: Fix 16gb hbas failing cq create. scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc scsi: lpfc: correct oversubscription of nvme io requests for an adapter scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx) scsi: hisi_sas: Mark PHY as in reset for nexus reset scsi: hisi_sas: Fix return value when get_free_slot() failed scsi: hisi_sas: Terminate STP reject quickly for v2 hw scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot scsi: hisi_sas: Try wait commands before before controller reset scsi: hisi_sas: Init disks after controller reset scsi: hisi_sas: Create a scsi_host_template per HW module scsi: hisi_sas: Reset disks when discovered scsi: hisi_sas: Add LED feature for v3 hw scsi: hisi_sas: Change common allocation mode of device id scsi: hisi_sas: change slot index allocation mode scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate() scsi: hisi_sas: fix a typo in hisi_sas_task_prep() ...
2018-05-23qedf: Add get_generic_tlv_data handler.Chad Dupuis2-0/+18
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23qedf: Add support for populating ethernet TLVs.Chad Dupuis4-1/+104
This patch adds callbacks for providing the ethernet protocol driver TLVs. Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-08scsi: qedf: Update version number to 8.33.16.20Chad Dupuis1-2/+2
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Update copyright for 2018Chad Dupuis15-15/+15
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Add more defensive checks for concurrent error conditionsChad Dupuis3-14/+58
During an uplink toggle test all error handling is done via timeout and firmware error conditions which can occur concurrently: - SCSI layer timeouts - Error detect CQEs - Firmware detected underruns - ABTS timeouts All these concurrent events require more defensive checks in the driver including: - Check both internally and externally generated aborts to make sure the xid is not already been aborted in another context or in cleanup. - Check back pointers in qedf_cmd_timeout to verify the context of the io_req, fcport and qedf_ctx - Check rport state in host reset handler to not reset the whole host if the rport is already uploaded or in the process of relogin - Check to state for an fcport before initiating a middle path ELS request Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Set the UNLOADING flag when removing a vportChad Dupuis1-0/+10
Similar to what we do when we remove a PCI function, set the QEDF_UNLOADING flag to prevent any requests from being queued while a vport is being deleted. This prevents any requests from getting stuck in limbo when the vport is unloaded or deleted. Fixes the crash: PID: 106676 TASK: ffff9a436aa90000 CPU: 12 COMMAND: "multipathd" #0 [ffff9a43567d3550] machine_kexec+522 at ffffffffaca60b2a #1 [ffff9a43567d35b0] __crash_kexec+114 at ffffffffacb13512 #2 [ffff9a43567d3680] crash_kexec+48 at ffffffffacb13600 #3 [ffff9a43567d3698] oops_end+168 at ffffffffad117768 #4 [ffff9a43567d36c0] no_context+645 at ffffffffad106f52 #5 [ffff9a43567d3710] __bad_area_nosemaphore+116 at ffffffffad106fe9 #6 [ffff9a43567d3760] bad_area+70 at ffffffffad107379 #7 [ffff9a43567d3788] __do_page_fault+1247 at ffffffffad11a8cf #8 [ffff9a43567d37f0] do_page_fault+53 at ffffffffad11a915 #9 [ffff9a43567d3820] page_fault+40 at ffffffffad116768 [exception RIP: qedf_init_task+61] RIP: ffffffffc0e13c2d RSP: ffff9a43567d38d0 RFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffbe920472c738 RCX: ffff9a434fa0e3e8 RDX: ffff9a434f695280 RSI: ffffbe920472c738 RDI: ffff9a43aa359c80 RBP: ffff9a43567d3950 R8: 0000000000000c15 R9: ffff9a3fb09b9880 R10: ffff9a434fa0e3e8 R11: ffff9a43567d35ce R12: 0000000000000000 R13: ffff9a434f695280 R14: ffff9a43aa359c80 R15: ffff9a3fb9e005c0 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Add additional checks when restarting an rport due to ABTS timeoutChad Dupuis1-0/+31
There are a couple of kernel cases when we restart a remote port due to ABTS timeout that we need to handle: 1. Flush any outstanding ABTS requests when flushing I/Os so that we do not hold up the eh_abort handler indefinitely causing process hangs. 2. Check if we are currently uploading a connection before issuing an ABTS. Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: If qed fails to enable MSI-X fail PCI probeChad Dupuis1-1/+2
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Honor default_prio module parameter even if DCBX does not convergeChad Dupuis1-1/+8
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Improve firmware debug dump handlingChad Dupuis3-2/+15
Get all firmware debug data instead of just a grc dump. Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Remove setting DCBX pending during soft context resetSaurav Kashyap1-1/+0
PROBLEM DESCRIPTION: According to the logs, STAG was changing and it was triggering soft reset. In soft reset we used to virtual link down and up and also we were disabling DCBx flag. Since this was virtual link flap, DCBx never used to converge again. SOLUTION: Code change is to remove disabling DCBx flag from soft reset. Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com> Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Add task id to kref_get_unless_zero() debug messages when ↵Chad Dupuis1-3/+3
flushing requests Helps to corroborate which requests we can't get reference on and if it's real bug or not. Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Check if link is already up when receiving a link up event from qedChad Dupuis1-0/+5
[mkp: typo] Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Return request as DID_NO_CONNECT if MSI-X is not enabledChad Dupuis1-0/+9
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Release RRQ reference correctly when RRQ command times outChad Dupuis1-0/+8
When an RRQ request times out the reference is not getting decremented correctly as there are still ELS commands leftover when we flush any pending I/Os during offload: [ 281.788553] [0000:21:00.3]:[qedf_cmd_timeout:58]:4: ELS timeout, xid=0x96a. ... [ 281.788553] [0000:21:00.3]:[qedf_cmd_timeout:58]:4: ELS timeout, xid=0x96a. [ 281.788772] [0000:21:00.3]:[qedf_rrq_compl:182]:4: Entered. [ 281.788774] [0000:21:00.3]:[qedf_rrq_compl:200]:4: rrq_compl: orig io = ffffc90004c556f8, orig xid = 0x81b, rrq_xid = 0x96a, refcount=1 ... [ 331.448032] [0000:21:00.3]:[qedf_flush_els_req:1512]:4: Flushing ELS request xid=0x96a refcount=2. The fix is to call kref_put on the rrq_req in case of timeout as the timeout handler will call rrq_compl directly vs. a normal completion where it is call from els_compl. Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Honor priority from DCBX FCoE App tagChad Dupuis2-14/+39
We currently hard code the priority in the 8021q tag to 3 for FCoE traffic. The vast majority of the time this is fine but if the priority is something else besides 3, any VLAN ID comparison either in the non-offload path or offload path will fail and cause dropped frames where none are expected. Change the behavior so that the driver default is 3 if we do not get any DCBX convergence. If DCBX does converge, then set the FIP/FCoE priority in the following manner: 1. If the qedf_default_prio modparam is set use that 2. If the DCBX FCoE priority is not in range (0..7) use 3 3. Use the DCBX FCoE priority we get in the driver's DCBX handler Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Add dcbx_not_wait module parameter so we won't wait for DCBX ↵Chad Dupuis1-2/+9
convergence to start discovery This module parameter is to work around cases where we do not receive the DCBX handler notification from qed but discovery is still possible if we send out a FIP VLAN request irregardless of the DCBX state. [mkp: zeroday warning] Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Sanity check FCoE/FIP priority value to make sure it's between 0 ↵Chad Dupuis1-0/+7
and 7 Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Add check for offload before flushing I/Os for targetChad Dupuis1-0/+6
We need to check that a fcport is offloaded before we try to flush any requests. No doing so could lead to undefined results and most likely a crash. Fixes the oops: [ 343.971886] [0000:42:00.3]:[qedf_execute_tmf:2070]:8: wait for tm_cmpl timeout! [ 343.971933] BUG: unable to handle kernel paging request at 00000000000024a8 [ 343.971949] IP: [<ffffffffa06b8cc6>] qedf_flush_active_ios+0x46/0x260 [qedf] [ 343.971952] PGD 42c569067 PUD 4160fe067 PMD 0 [ 343.971954] Oops: 0000 [#1] SMP [ 343.972008] Modules linked in: qedf(OEX) qed(OEX) bnx2i cnic fuse af_packet iscsi_ibft msr xfs intel_rapl sb_edac edac_core x86_pkg_temp_thermal bnx2x geneve intel_powerclamp vxlan coretemp ipmi_ssif ipmi_devintf kvm_intel kvm libiscsi joydev irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel tg3 ip6_udp_tunnel udp_tunnel mdio libcrc32c iTCO_wdt scsi_transport_iscsi uio drbg iTCO_vendor_support iscsi_boot_sysfs dcdbas(X) ipmi_si ansi_cprng aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper ptp pps_core pcspkr libphy lpc_ich mfd_core cryptd fjes wmi ipmi_msghandler button crc8 libfcoe libfc scsi_transport_fc mei_me mei shpchp processor acpi_pad btrfs xor hid_generic usbhid raid6_pq sd_mod sr_mod cdrom mgag200 crc32c_intel i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt [ 343.972020] fb_sys_fops ttm ahci ehci_pci libahci ehci_hcd drm libata usbcore megaraid_sas usb_common sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4 [last unloaded: qedf] [ 343.972022] Supported: Yes, External [ 343.972026] CPU: 30 PID: 12777 Comm: sg_reset Tainted: G W OE X 4.4.73-5-default #1 [ 343.972027] Hardware name: Dell Inc. PowerEdge R720/0X3D66, BIOS 2.1.3 11/20/2013 [ 343.972029] task: ffff88018dfc0e80 ti: ffff88042bd7c000 task.ti: ffff88042bd7c000 [ 343.972036] RIP: 0010:[<ffffffffa06b8cc6>] [<ffffffffa06b8cc6>] qedf_flush_active_ios+0x46/0x260 [qedf] [ 343.972038] RSP: 0018:ffff88042bd7fbe0 EFLAGS: 00010286 [ 343.972039] RAX: 0000000000000000 RBX: ffff88042ce37800 RCX: 0000000000000400 [ 343.972040] RDX: 000000000000060e RSI: ffffffffa06be830 RDI: ffff8807e5072cc0 [ 343.972041] RBP: 0000000000001000 R08: ffffffffa06bff4d R09: ffff88018dd84580 [ 343.972042] R10: 000000000000018b R11: 0000000000000002 R12: 0000000000002003 [ 343.972043] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8807e5072cc0 [ 343.972046] FS: 00007fc1c8809700(0000) GS:ffff88042fbc0000(0000) knlGS:0000000000000000 [ 343.972048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 343.972049] CR2: 00000000000024a8 CR3: 00000004236ec000 CR4: 00000000001406e0 [ 343.972050] Stack: [ 343.972053] 504c78750607e154 ffffffff810a7d10 ffff88042ce37800 0000000000000010 [ 343.972055] 0000000000002003 ffff8807ff480c48 ffff8807e5072cc0 ffffc90004ec4ff8 [ 343.972057] ffffffffa06b9b86 ffff880800000010 0000000000000282 ffff88042ce37800 [ 343.972058] Call Trace: [ 343.972094] [<ffffffffa06b9b86>] qedf_initiate_tmf+0x346/0x3e0 [qedf] [ 343.972120] [<ffffffffa000fa06>] scsi_try_bus_device_reset+0x26/0x40 [scsi_mod] [ 343.972133] [<ffffffffa001038e>] scsi_ioctl_reset+0x13e/0x260 [scsi_mod] [ 343.972145] [<ffffffffa000f416>] scsi_ioctl+0x136/0x3d0 [scsi_mod] [ 343.972154] [<ffffffff812ff6eb>] blkdev_ioctl+0x6bb/0x950 [ 343.972164] [<ffffffff8123cfed>] block_ioctl+0x3d/0x40 [ 343.972170] [<ffffffff81217e2d>] do_vfs_ioctl+0x2cd/0x4a0 [ 343.972186] [<ffffffff81218074>] SyS_ioctl+0x74/0x80 [ 343.972193] [<ffffffff8160916e>] entry_SYSCALL_64_fastpath+0x12/0x6d [ 343.975285] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x12/0x6d Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Fix VLAN display when printing sent FIP framesChad Dupuis1-1/+1
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Add missing skb frees in error pathChad Dupuis2-0/+2
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Increase the number of default FIP VLAN request retries to 60Chad Dupuis1-2/+2
Some configurations need more than 30 seconds to respond to a FIP VLAN request so increase the default to 60 seconds. Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08scsi: qedf: Synchronize rport restarts when multiple ELS commands time outChad Dupuis2-0/+13
If multiple ELS commands time out, such as aborts, they could all try to restart the same rport and the same time. This could mean multiple multiple processes trying to clean up any outstanding commands or trying to upload the same port. Add a new flag (QEDF_RPORT_IN_RESET) and check other fcport state flags before trying to reset the port. Fixes the crash: [17501.824701] ------------[ cut here ]------------ [17501.824733] kernel BUG at include/asm-generic/dma-mapping-common.h:65! [17501.824760] invalid opcode: 0000 [#1] SMP [17501.824781] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ses enclosure dm_service_time vfat fat sb_edac edac_core intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass joydev btrfs hpilo raid6_pq iTCO_wdt iTCO_vendor_support xor hpwdt ipmi_ssif sg crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul ioatdma lpc_ich glue_helper ablk_helper i2c_i801 shpchp cryptd ipmi_si pcspkr acpi_power_meter ipmi_devintf pcc_cpufreq dca wmi ipmi_msghandler dm_multipath nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod cdrom sd_mod [17501.825119] crc_t10dif crct10dif_generic mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm qedf(OE) drm libfcoe ahci qedi(OE) crct10dif_pclmul libfc libahci uio crct10dif_common crc32c_intel libiscsi libata scsi_transport_iscsi scsi_transport_fc tg3 qede(OE) scsi_tgt hpsa qed(OE) i2c_core ptp scsi_transport_sas pps_core iscsi_boot_sysfs dm_mirror dm_region_hash dm_log dm_mod [17501.825292] CPU: 8 PID: 10531 Comm: kworker/u96:1 Tainted: G OE ------------ 3.10.0-693.el7.x86_64 #1 [17501.825330] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 06/02/2016 [17501.825372] Workqueue: fc_rport_eq fc_rport_work [libfc] [17501.825395] task: ffff88101bca8000 ti: ffff881025278000 task.ti: ffff881025278000 [17501.825424] RIP: 0010:[<ffffffffc042def9>] [<ffffffffc042def9>] qedf_unmap_sg_list.isra.15+0x89/0x90 [qedf] [17501.825471] RSP: 0018:ffff88102527bb98 EFLAGS: 00010212 [17501.825493] RAX: ffff8800224eac00 RBX: ffffc9000cd05210 RCX: 0000000000001000 [17501.825520] RDX: 000000007e655e40 RSI: 0000000000001000 RDI: ffff88107fe3b098 [17501.826683] RBP: ffff88102527bba0 R08: ffffffff81a13200 R09: 0000000000000286 [17501.827747] R10: 0000000000000004 R11: 0000000000000005 R12: ffffc9000cd051b8 [17501.828804] R13: ffff881037640c28 R14: 0000000000000007 R15: ffffc9000cd05200 [17501.829850] FS: 0000000000000000(0000) GS:ffff88103fa00000(0000) knlGS:0000000000000000 [17501.830910] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [17501.831966] CR2: 00007f9b94005f38 CR3: 00000000019f2000 CR4: 00000000003407e0 [17501.833027] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [17501.834087] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [17501.835142] Stack: [17501.836201] ffff881033ddbb80 ffff88102527bc30 ffffffffc042f834 0000000000002710 [17501.837264] ffff88102527bbd0 ffffffff8133d9dd ffffc9000cd052a0 ffff88102527bc30 [17501.838325] ffffffff816a9c65 0000000000000001 ffff88101bca8000 ffffffff810c4810 [17501.839388] Call Trace: [17501.840446] [<ffffffffc042f834>] qedf_scsi_done+0x54/0x1d0 [qedf] [17501.841504] [<ffffffff8133d9dd>] ? list_del+0xd/0x30 [17501.842537] [<ffffffff816a9c65>] ? wait_for_completion_timeout+0x125/0x140 [17501.843560] [<ffffffff810c4810>] ? wake_up_state+0x20/0x20 [17501.844577] [<ffffffffc0430311>] qedf_initiate_cleanup+0x2e1/0x310 [qedf] [17501.845587] [<ffffffffc04305fe>] qedf_flush_active_ios+0x10e/0x260 [qedf] [17501.846612] [<ffffffffc042892f>] qedf_cleanup_fcport+0x5f/0x370 [qedf] [17501.847613] [<ffffffffc04292d8>] qedf_rport_event_handler+0x398/0x950 [qedf] [17501.848602] [<ffffffff810cdc7c>] ? dequeue_entity+0x11c/0x5d0 [17501.849581] [<ffffffff81098a2b>] ? __internal_add_timer+0xab/0x130 [17501.850555] [<ffffffff810ce54e>] ? dequeue_task_fair+0x41e/0x660 [17501.851528] [<ffffffffc03241a4>] fc_rport_work+0xf4/0x6c0 [libfc] [17501.852490] [<ffffffff810a881a>] process_one_work+0x17a/0x440 [17501.853446] [<ffffffff810a94e6>] worker_thread+0x126/0x3c0 Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08qed: Add support for Unified Fabric Port.Sudarsana Reddy Kalluru2-3/+6
This patch adds driver changes for supporting the Unified Fabric Port (UFP). This is a new paritioning mode wherein MFW provides the set of parameters to be used by the device such as traffic class, outer-vlan tag value, priority type etc. Drivers receives this info via notifications from mfw and configures the hardware accordingly. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-14scsi: qedf: use correct strncpy() sizeArnd Bergmann1-1/+1
gcc-8 warns during link-time optimization that the strncpy() call passes the size of the source buffer rather than the destination: drivers/scsi/qedf/qedf_dbg.c: In function 'qedf_uevent_emit': include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=] This changes it to strscpy() with the correct length, guaranteeing a properly nul-terminated string of the right size. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-14scsi: qedf: fix LTO-enabled buildArnd Bergmann3-15/+16
The prototype for qedf_dbg_fops/qedf_debugfs_ops doesn't match the definition, which causes the final link to fail with link-time optimizations: drivers/scsi/qedf/qedf_main.c:34: error: type of 'qedf_dbg_fops' does not match original declaration [-Werror=lto-type-mismatch] extern struct file_operations qedf_dbg_fops; drivers/scsi/qedf/qedf_debugfs.c:443: note: 'qedf_dbg_fops' was previously declared here const struct file_operations qedf_dbg_fops[] = { drivers/scsi/qedf/qedf_main.c:33: error: type of 'qedf_debugfs_ops' does not match original declaration [-Werror=lto-type-mismatch] extern struct qedf_debugfs_ops qedf_debugfs_ops; drivers/scsi/qedf/qedf_debugfs.c:102: note: 'qedf_debugfs_ops' was previously declared here struct qedf_debugfs_ops qedf_debugfs_ops[] = { This corrects the prototype and moves it into a shared header file where it belongs. The file operations can also be marked 'const' like the qedf_debugfs_ops. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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