android_kernel_oneplus_msm8998/drivers/scsi/qla2xxx
Himanshu Madhani 0e5e758530 scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails
commit 413c2f33489b134e3cc65d9c3ff7861e8fdfe899 upstream.

This patch prevents driver from setting lower default speed of 1 GB/sec,
if the switch does not support Get Port Speed Capabilities (GPSC)
command. Setting this default speed results into much lower write
performance for large sequential WRITE.  This patch modifies driver to
check for gpsc_supported flags and prevents driver from issuing
MBC_SET_PORT_PARAM (001Ah) to set default speed of 1 GB/sec. If driver
does not send this mailbox command, firmware assumes maximum supported
link speed and will operate at the max speed.

Cc: stable@vger.kernel.org
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reported-by: Eda Zhou <ezhou@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Tested-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-03 11:21:31 +02:00
..
Kconfig
Makefile
qla_attr.c scsi: qla2xxx: Fix an integer overflow in sysfs code 2017-09-27 11:00:16 +02:00
qla_bsg.c
qla_bsg.h
qla_dbg.c
qla_dbg.h
qla_def.h
qla_devtbl.h
qla_dfs.c
qla_fw.h
qla_gbl.h
qla_gs.c
qla_init.c scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails 2018-07-03 11:21:31 +02:00
qla_inline.h
qla_iocb.c
qla_isr.c scsi: qla2xxx: Avoid triggering undefined behavior in qla2x00_mbx_completion() 2018-05-30 07:48:58 +02:00
qla_mbx.c
qla_mid.c
qla_mr.c
qla_mr.h
qla_nx.c
qla_nx.h
qla_nx2.c
qla_nx2.h
qla_os.c scsi: qla2xxx: don't disable a not previously enabled PCI device 2017-06-14 13:16:25 +02:00
qla_settings.h
qla_sup.c
qla_target.c scsi: qla2xxx: Replace fcport alloc with qla2x00_alloc_fcport 2018-03-18 11:17:52 +01:00
qla_target.h
qla_tmpl.c
qla_tmpl.h
qla_version.h
tcm_qla2xxx.c
tcm_qla2xxx.h