Himanshu,
> 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. Applied to 4.18/scsi-fixes. Thank you! -- Martin K. Petersen Oracle Linux Engineering
