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ab98afb456
Driver unload with I/Os in flight causes server to crash. Complete I/O with DID_IMM_RETRY if fcport undergoing deletion. CPU: 44 PID: 35008 Comm: qla2xxx_4_dpc Kdump: loaded Tainted: G OE X 5.3.18-22-default #1 SLE15-SP2 (unreleased) Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 07/16/2020 RIP: 0010:dma_direct_unmap_sg+0x24/0x60 Code: 4c 8b 04 24 eb b9 0f 1f 44 00 00 85 d2 7e 4e 41 57 4d 89 c7 41 56 41 89 ce 41 55 49 89 fd 41 54 41 89 d4 55 31 ed 53 48 89 f3 <8b> 53 18 48 8b 73 10 4d 89 f8 44 89 f1 4c 89 ef 83 c5 01 e8 44 ff RSP: 0018:ffffc0c661037d88 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 000000000000001d RSI: 0000000000000000 RDI: ffff9a51ee53b0b0 RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9a51ee53b0b0 R10: ffffc0c646463dc8 R11: ffff9a4a067087c8 R12: 000000000000001d R13: ffff9a51ee53b0b0 R14: 0000000000000002 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff9a523f800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 000000043740a004 CR4: 00000000007606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: qla2xxx_qpair_sp_free_dma+0x20d/0x3c0 [qla2xxx] qla2xxx_qpair_sp_compl+0x35/0x90 [qla2xxx] __qla2x00_abort_all_cmds+0x180/0x390 [qla2xxx] ? qla24xx_process_purex_list+0x100/0x100 [qla2xxx] qla2x00_abort_all_cmds+0x5e/0x80 [qla2xxx] qla2x00_do_dpc+0x317/0xa30 [qla2xxx] kthread+0x10d/0x130 ? kthread_park+0xa0/0xa0 ret_from_fork+0x35/0x40 Link: https://lore.kernel.org/r/20201202132312.19966-14-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> See also upstream commit 707531bc2626c1959a03b93566ebb4e629c99276. git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9300 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Overview
This is the source code repository of the SCST project. SCST is a collection of Linux kernel drivers that implement SCSI target functionality. The SCST project includes:
- The SCST core in the scst/ subdirectory.
- A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
- Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
- User space programs in the usr/ subdirectory, e.g. fileio_tgt.
- Various documentation in the doc/ subdirectory.
Instructions for building and installing SCST are available in the INSTALL.md file.
QLogic target driver
Two QLogic target drivers are included in the SCST project. The driver in the qla2x00t directory is a very stable driver that supports up to 16 Gb/s adapters. It is very stable, well tested and actively used in many production setups.
There is also a newer driver that supports 32 Gb/s FC in the qla2x00t-32gbit directory. That driver has not yet reached the same maturity level as the old qla2x00t driver.
Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net