Saurav Kashyap 5239ab63f1 scsi: qedf: Fix refcount issue when LOGO is received during TMF ... Hung task call trace was seen during LOGO processing. [ 974.309060] [0000:00:00.0]:[qedf_eh_device_reset:868]: 1:0:2:0: LUN RESET Issued... [ 974.309065] [0000:00:00.0]:[qedf_initiate_tmf:2422]: tm_flags 0x10 sc_cmd 00000000c16b930f op = 0x2a target_id = 0x2 lun=0 [ 974.309178] [0000:00:00.0]:[qedf_initiate_tmf:2431]: portid=016900 tm_flags =LUN RESET [ 974.309222] [0000:00:00.0]:[qedf_initiate_tmf:2438]: orig io_req = 00000000ec78df8f xid = 0x180 ref_cnt = 1. [ 974.309625] host1: rport 016900: Received LOGO request while in state Ready [ 974.309627] host1: rport 016900: Delete port [ 974.309642] host1: rport 016900: work event 3 [ 974.309644] host1: rport 016900: lld callback ev 3 [ 974.313243] [0000:61:00.2]:[qedf_execute_tmf:2383]:1: fcport is uploading, not executing flush. [ 974.313295] [0000:61:00.2]:[qedf_execute_tmf:2400]:1: task mgmt command success... [ 984.031088] INFO: task jbd2/dm-15-8:7645 blocked for more than 120 seconds. [ 984.031136] Not tainted 4.18.0-305.el8.x86_64 #1 [ 984.031166] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 984.031209] jbd2/dm-15-8 D 0 7645 2 0x80004080 [ 984.031212] Call Trace: [ 984.031222] __schedule+0x2c4/0x700 [ 984.031230] ? unfreeze_partials.isra.83+0x16e/0x1a0 [ 984.031233] ? bit_wait_timeout+0x90/0x90 [ 984.031235] schedule+0x38/0xa0 [ 984.031238] io_schedule+0x12/0x40 [ 984.031240] bit_wait_io+0xd/0x50 [ 984.031243] __wait_on_bit+0x6c/0x80 [ 984.031248] ? free_buffer_head+0x21/0x50 [ 984.031251] out_of_line_wait_on_bit+0x91/0xb0 [ 984.031257] ? init_wait_var_entry+0x50/0x50 [ 984.031268] jbd2_journal_commit_transaction+0x112e/0x19f0 [jbd2] [ 984.031280] kjournald2+0xbd/0x270 [jbd2] [ 984.031284] ? finish_wait+0x80/0x80 [ 984.031291] ? commit_timeout+0x10/0x10 [jbd2] [ 984.031294] kthread+0x116/0x130 [ 984.031300] ? kthread_flush_work_fn+0x10/0x10 [ 984.031305] ret_from_fork+0x1f/0x40 There was a ref count issue when LOGO is received during TMF. This leads to one of the I/Os hanging with the driver. Fix the ref count. Link: https://lore.kernel.org/r/20220117135311.6256-3-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>		2022-01-24 23:30:26 -05:00
..
drv_fcoe_fw_funcs.c	qed: Remove e4_ and _e4 from FW HSI	2021-10-04 12:55:48 +01:00
drv_fcoe_fw_funcs.h	qed: Remove e4_ and _e4 from FW HSI	2021-10-04 12:55:48 +01:00
drv_scsi_fw_funcs.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440	2019-06-05 17:37:17 +02:00
drv_scsi_fw_funcs.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440	2019-06-05 17:37:17 +02:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
qedf_attr.c	scsi: qedf: Switch to attribute groups	2021-10-16 21:45:58 -04:00
qedf_dbg.c	scsi: qedf: Use vzalloc() instead of vmalloc()/memset(0)	2021-05-21 16:31:17 -04:00
qedf_dbg.h	scsi: qedf: Remove unused include of linux/version.h	2021-04-05 23:45:23 -04:00
qedf_debugfs.c	scsi: qedf: Demote obvious misuse of kerneldoc to standard comment blocks	2020-07-15 16:01:58 -04:00
qedf_els.c	qed: Remove e4_ and _e4 from FW HSI	2021-10-04 12:55:48 +01:00
qedf_fip.c	scsi: qedf: Remove redundant initialization of variable rc	2020-06-02 21:44:14 -04:00
qedf_hsi.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440	2019-06-05 17:37:17 +02:00
qedf_io.c	scsi: qedf: Fix refcount issue when LOGO is received during TMF	2022-01-24 23:30:26 -05:00
qedf_main.c	scsi: qedf: Add stag_work to all the vports	2022-01-24 23:30:25 -05:00
qedf_version.h	scsi: qedf: Update the version to 8.42.3.0	2019-08-29 18:51:19 -04:00
qedf.h	SCSI misc on 20211105	2021-11-05 08:42:02 -07:00