Gleb Chesnokov b810bf3939 qla2x00t-32gbit: Fix premature hw access after PCI error
After a recoverable PCI error has been detected and recovered, qla driver
needs to check to see if the error condition still persist and/or wait
for the OS to give the resume signal.

Sep  8 22:26:03 localhost kernel: WARNING: CPU: 9 PID: 124606 at qla_tmpl.c:440
qla27xx_fwdt_entry_t266+0x55/0x60 [qla2xxx]
Sep  8 22:26:03 localhost kernel: RIP: 0010:qla27xx_fwdt_entry_t266+0x55/0x60
[qla2xxx]
Sep  8 22:26:03 localhost kernel: Call Trace:
Sep  8 22:26:03 localhost kernel: ? qla27xx_walk_template+0xb1/0x1b0 [qla2xxx]
Sep  8 22:26:03 localhost kernel: ? qla27xx_execute_fwdt_template+0x12a/0x160
[qla2xxx]
Sep  8 22:26:03 localhost kernel: ? qla27xx_fwdump+0xa0/0x1c0 [qla2xxx]
Sep  8 22:26:03 localhost kernel: ? qla2xxx_pci_mmio_enabled+0xfb/0x120
[qla2xxx]
Sep  8 22:26:03 localhost kernel: ? report_mmio_enabled+0x44/0x80
Sep  8 22:26:03 localhost kernel: ? report_slot_reset+0x80/0x80
Sep  8 22:26:03 localhost kernel: ? pci_walk_bus+0x70/0x90
Sep  8 22:26:03 localhost kernel: ? aer_dev_correctable_show+0xc0/0xc0
Sep  8 22:26:03 localhost kernel: ? pcie_do_recovery+0x1bb/0x240
Sep  8 22:26:03 localhost kernel: ? aer_recover_work_func+0xaa/0xd0
Sep  8 22:26:03 localhost kernel: ? process_one_work+0x1a7/0x360
..
Sep  8 22:26:03 localhost kernel: qla2xxx [0000:42:00.2]-8041:22: detected PCI
disconnect.
Sep  8 22:26:03 localhost kernel: qla2xxx [0000:42:00.2]-107ff:22:
qla27xx_fwdt_entry_t262: dump ram MB failed. Area 5h start 198013h end 198013h
Sep  8 22:26:03 localhost kernel: qla2xxx [0000:42:00.2]-107ff:22: Unable to
capture FW dump
Sep  8 22:26:03 localhost kernel: qla2xxx [0000:42:00.2]-1015:22: cmd=0x0,
waited 5221 msecs
Sep  8 22:26:03 localhost kernel: qla2xxx [0000:42:00.2]-680d:22: mmio
enabled returning.
Sep  8 22:26:03 localhost kernel: qla2xxx [0000:42:00.2]-d04c:22: MBX
Command timeout for cmd 0, iocontrol=ffffffff jiffies=10140f2e5
mb[0-3]=[0xffff 0xffff 0xffff 0xffff]

Link: https://lore.kernel.org/r/20220110050218.3958-6-njavali@marvell.com
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[ commit e35920ab7874 upstream ]
2022-04-04 19:56:13 +03:00
2021-08-17 09:40:21 -04:00
2022-01-11 16:37:34 +03:00
2022-04-03 14:44:17 +03:00
2022-01-11 16:37:34 +03:00
2021-03-15 04:06:56 +00:00
2021-12-07 00:18:44 +03:00

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:

  1. The SCST core in the scst/ subdirectory.
  2. A tool for loading, saving and modifying the SCST configuration in directory scstadmin/.
  3. Several SCSI target drivers in the directories iscsi-scst/, qla2x00t/, srpt/, scst_local/ and fcst/.
  4. User space programs in the usr/ subdirectory, e.g. fileio_tgt.
  5. 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 default driver is located in qla2x00t-32gbit directory and it supports up to 32 Gb/s FC. It is the newer one.

May anyone wish to switch back to the older driver that only supported up to 16 Gb/s adapters, it is located in qla2x00t directory. To make use of the older driver build scst with environment variable QLA_32GBIT=no set.

Vladislav Bolkhovitin vst@vlnb.net, http://scst.sourceforge.net

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