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linux/drivers/scsi/qla2xxx
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Himanshu Madhani 413c2f3348 scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails 
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>
2018-06-05 21:21:18 -04:00
..
Kconfig scsi: qla2xxx: avoid unused-function warning 2017-07-01 17:14:58 -04:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qla_attr.c scsi: qla2xxx: Use zeroing allocator rather than allocator/memset 2018-01-04 01:09:26 -05:00
qla_bsg.c scsi: qla2xxx: Use dma_pool_zalloc() 2018-02-22 20:28:43 -05:00
qla_bsg.h qla2xxx: Add bsg interface to support statistics counter reset. 2016-07-15 15:35:37 -04:00
qla_dbg.c Merge branch 'fixes' into misc 2018-04-03 17:38:39 -07:00
qla_dbg.h scsi: qla2xxx: Include Exchange offload/Extended Login into FW dump 2017-06-27 21:21:41 -04:00
qla_def.h Merge branch 'fixes' into misc 2018-04-03 17:38:39 -07:00
qla_devtbl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qla_dfs.c scsi: qla2xxx: Add XCB counters to debugfs 2018-01-22 20:03:54 -05:00
qla_fw.h scsi: qla2xxx: Fix session cleanup for N2N 2018-01-03 23:41:06 -05:00
qla_gbl.h scsi: qla2xxx: Fix Async GPN_FT for FCP and FC-NVMe scan 2018-03-21 18:38:55 -04:00
qla_gs.c scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_init.c scsi: qla2xxx: Fix setting lower transfer speed if GPSC fails 2018-06-05 21:21:18 -04:00
qla_inline.h scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_iocb.c scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_isr.c scsi: qla2xxx: Correct setting of SAM_STAT_CHECK_CONDITION 2018-04-09 21:04:36 -04:00
qla_mbx.c scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_mid.c scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_mr.c scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_mr.h
qla_nvme.c scsi: qla2xxx: Cleanup code to improve FC-NVMe error handling 2018-03-21 18:38:54 -04:00
qla_nvme.h scsi: qla2xxx: Fix FC-NVMe IO abort during driver reset 2018-03-21 18:38:54 -04:00
qla_nx.c scsi: qla2xxx: Fix function argument descriptions 2018-02-12 11:43:25 -05:00
qla_nx.h scsi: qla2xxx: remove writeq/readq function definitions 2017-06-12 20:48:08 -04:00
qla_nx2.c scsi: qla2xxx: Fix function argument descriptions 2018-02-12 11:43:25 -05:00
qla_nx2.h scsi: qla2xxx: Remove unused symbols 2018-02-12 11:43:24 -05:00
qla_os.c scsi: qla2xxx: Fix small memory leak in qla2x00_probe_one on probe failure 2018-04-09 16:35:49 -04:00
qla_settings.h
qla_sup.c scsi: qla2xxx: Fix function argument descriptions 2018-02-12 11:43:25 -05:00
qla_target.c scsi: qla2xxx: Fix race condition between iocb timeout and initialisation 2018-04-09 21:04:36 -04:00
qla_target.h scsi: qla2xxx: Add changes for devloss timeout in driver 2018-03-21 18:38:54 -04:00
qla_tmpl.c scsi: qla2xxx: Fix Firmware dump size for Extended login and Exchange Offload 2018-01-03 23:41:05 -05:00
qla_tmpl.h
qla_version.h scsi: qla2xxx: Update driver version to 10.00.00.06-k 2018-03-21 18:38:55 -04:00
tcm_qla2xxx.c scsi: qla2xxx: Use zeroing allocator rather than allocator/memset 2018-01-04 01:09:26 -05:00
tcm_qla2xxx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00