- 08 May, 2018 26 commits
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Chad Dupuis authored
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>
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himanshu.madhani@cavium.com authored
Signed-off-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
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Quinn Tran authored
For target mode, task management command is queued to specific cpu base on where the SCSI command is residing. This prevent race condition of task management command getting ahead of regular scsi command. Signed-off-by:
Quinn Tran <quinn.tran@cavium.com> Signed-off-by:
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himanshu.madhani@cavium.com authored
Signed-off-by:
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Quinn Tran authored
Signed-off-by:
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Quinn Tran authored
- Uses predefine inline function to access add_cdb_len field in ATIO. - Return SS_RESIDUAL_UNDER status when sending BUSY Signed-off-by:
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Quinn Tran authored
When a connection is established, the target core session may not be created immediately. Current code will drop/terminate the command based on the session state. This patch will return BUSY status for any commands arriving on wire before the session is created. Signed-off-by:
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Quinn Tran authored
Move GPSC & GFPNID commands out of session management to reduce time lag in reporting the session state to remote port. These commands are not essential when it comes to maintaining the rport state. Delay sending these commands after rport state is set to Online. Signed-off-by:
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Quinn Tran authored
For each RSCN that triggers a rescan of the fabric, ADISC is used to revalidate an existing session. If the RSCN is not affecting all existing sessions, then driver should not send redundant ADISC for all existing sessions. Signed-off-by:
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Quinn Tran authored
This patch fixes regression introduced by commit a4239945 ("scsi: qla2xxx: Add switch command to simplify fabric discovery") by scheduling session deletion when Nport ID changes. [mkp: clarified commit] Fixes: a4239945 ("scsi: qla2xxx: Add switch command to simplify fabric discovery") Cc: <stable@vger.kernel.org> Signed-off-by:
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Quinn Tran authored
This patch fixes rport state and session state getting out of sync. Signed-off-by:
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Quinn Tran authored
This patch fixes login_retry login for ADISC command. when login_retry count reaches 0, further attempt to send ADISC command is ignored by the code. Remove this redundant login_retry count check from qla24xx_fcport_handle_login() [mkp: fix typo] Signed-off-by:
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Chaitra P B authored
Update driver version to match OOB/internal driver version. Signed-off-by:
Chaitra P B <chaitra.basappa@broadcom.com> Signed-off-by:
Suganath Prabu S <suganath-prabu.subramani@broadcom.com> Signed-off-by:
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Chaitra P B authored
In ioctl exit path driver refers ioc_list to free memory associated with diag buffers and event_log pointer used to save events by driver. If ctl_exit() func is called after unregistering driver, then ioc_list will be empty and hence driver will not be able to free the allocated memory which in turn causes memory leak. So call ctl_exit() function before unregistering mpt3sas driver. Signed-off-by:
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Chaitra P B authored
1) Manufacturing Page 11 contains parameters to control internal firmware behavior. Based on AddlFlags2 field FW/Driver behaviour can be changed, (flag tm_custom_handling is used for this) a) For PCIe device, protocol level reset should be used if flag tm_custom_handling is 0. Since Abort Task Set, LUN reset and Target reset will result in a protocol level reset. Drivers should issue only one type of this reset, if that fails then it should escalate to a controller reset (diag reset/OCR). b) If the driver has control over the TM reset timeout value, then driver should use the value exposed in PCIe Device Page 2 for pcie device (field ControllerResetTO). Signed-off-by:
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Chaitra P B authored
Update MPI Files to support protocol level reset for NVMe device. Signed-off-by:
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Chaitra P B authored
Added function _base_display_fwpkg_version, which sends FWUpload request to pull FW package version from FW Image Header. Now driver prints FW package version in addition to FW version if the PackageVersion is valid. Signed-off-by:
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Chaitra P B authored
In function _scsih_add_device, for each device connected to an enclosure, driver reads the enclosure page(To get details like enclosure handle, enclosure logical ID, enclosure level etc.) With this patch, instead of reading enclosure page everytime, driver maintains a list for enclosure device(During enclosure add event, enclosure device is added to the list and removed from the list on delete events) and uses the enclosure page from the list. Signed-off-by:
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Chaitra P B authored
Events were not processed during driver unload, hence unloading of driver doesn't complete when drives are disconnected while unloading of driver. So don't block events in ISR path, i,e., remove the flag ioc->remove_host so that events are getting processed during driver unload. Thus allowing driver unload to complete by processing drive removal events during driver unload. Signed-off-by:
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Chaitra P B authored
For 24 port HBA's events generated by IOC are more in certain cases and the current circular buffer may be overwritten.Hence increased the event log buffer to accommodate more events. Signed-off-by:
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Chaitra P B authored
The SAS Device Discovery Error Event is sent to the host when discovery for a particular device is failed during discovery, even after maximum retries by the IOC. Signed-off-by:
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Chaitra P B authored
Enhanced DMA allocation for Sense Buffer, if the allocation does not fit within same 4GB.Introduced is_MSB_are_same function to check if allocted buffer within 4GB range or not. Signed-off-by:
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Chaitra P B authored
For every IO, memory of PAGE size is allocated for handling NVMe native PRPS. And in addition to that for every IO (chains need per IO * chain buffer size, e.g. 38 * 128byte) amount of memory is allocated for chain buffers. However, at any point of time; the IO request can be for NVMe target device (where PRP's page is used for framing PRP's) or can be for SCSI target device (where chain buffers are used for framing chain SGE's). This patch modifies the driver to reuse same pre-allocated PRP page buffers as a chain buffer for IO's targeted for SCSI target devices. No need to allocate separate buffers for chain SGE's buffers. Suppose if the number of chain buffers need for IO doesn't fit in the PRP Page size then driver maintain's separate buffers for those extra chain buffers that exceeds the PRP page size. For example consider PRP page size as 4K and chain buffer size as 128 bytes, then number of chain buffers that can fit in PRP page is 4096/128 => 32. if the number of chain buffer need per IO exceeds 32; for example consider number of chains need per IO is 36 then for remaining 4 chain buffer's driver allocates them individual. Signed-off-by:
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Chaitra P B authored
Introduces Chain lookup table/tracker and implements accessing chain buffer using smid. Removed link list based access of chain buffer which requires lock and allocated as many chains needed. Signed-off-by:
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Chaitra P B authored
Instead of allocating RDPQ array (This stores the address's of each RDPQ pools) at run time, now it will be allocated once during driver load time and same will be reused during host reset operation also (instead of allocating & freeing this buffer on the fly during every host reset operation) and then freed during driver unload. Signed-off-by:
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Chaitra P B authored
This patch fixes sparse warnings and bugs on big endian systems. Signed-off-by:
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- 02 May, 2018 8 commits
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Colin Ian King authored
Trivial fix to spelling mistake in module parameter description text [mkp: applied by hand] Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in module parameter description text [mkp: applied by hand] Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in module description text Signed-off-by:
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Colin Ian King authored
The sanity check on u->in_connection_align_insertion_frequency is being performed twice and hence the first check can be removed since it is redundant. Cleans up cppcheck warning: drivers/scsi/ibmvscsi/ibmvscsi.c:1711: (warning) Identical inner 'if' condition is always true. Signed-off-by:
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YueHaibing authored
Remove boilerplate code by using macro module_pci_driver. Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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YueHaibing authored
Remove boilerplate code by using macro module_pci_driver. Signed-off-by:
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YueHaibing authored
Remove boilerplate code by using macro module_pci_driver. Signed-off-by:
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Christoph Hellwig authored
All three instance of ->smp_handler deal with highmem backed requests just fine. Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by:
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- 20 Apr, 2018 6 commits
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Arnd Bergmann authored
do_gettimeofday() is deprecated since it will stop working in 2038 on 32-bit platforms, leading to incorrect times passed to the firmware. On 64-bit platforms the current code appears to be fine, as the calculation passes an 8-bit century number into the firmware that can represent times long in the future (possibly until 25599). Using ktime_get_real_seconds() to get a 64-bit seconds value and time64_to_tm() to convert it into the firmware format greatly simplifies the ips timekeeping code, makes 32-bit and 64-bit behave the same way here, and gets us closer to removing the deprecated interfaces. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Arnd Bergmann authored
do_gettimeofday() is deprecated because of the y2038 overflow. Here, we use the result to pass into a 32-bit field in the firmware, which still risks an overflow, but if the firmware is written to expect unsigned values, it can at least last until y2106, and there is not much we can do about it. This changes do_gettimeofday() to ktime_get_real_seconds(), which at least simplifies the code a bit, and avoids the deprecated interface. I'm adding a comment about the overflow to document what happens. Signed-off-by:
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YueHaibing authored
Remove boilerplate code by using macro module_pci_driver. Signed-off-by:
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Randy Dunlap authored
Add a driver-api document for target/iSCSI interfaces. Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> To: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Cc: linux-scsi@vger.kernel.org Cc: target-devel@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by:
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Randy Dunlap authored
Make documentation on target-supported userspace-I/O design be usable by kernel-doc by using "DOC:". This is used in the driver-api Documentation chapter. Signed-off-by:
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Randy Dunlap authored
For exported functions that already have near-kernel-doc notation, fix them to begin with "/**" and make a few corrections so that they don't have any kernel-doc warnings. Signed-off-by:
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