K 10
svn:author
V 7
asomers
K 8
svn:date
V 27
2016-01-11T21:12:49.968891Z
K 7
svn:log
V 488
MFC r292218

Don't retry SAS commands in response to protocol errors

  sys/dev/mpr/mpr_sas_lsi.c
  sys/dev/mps/mps_sas_lsi.c
        When mp[rs]sas_get_sata_identify returns
        MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR, don't bother retrying. Protocol
        errors aren't likely to be fixed by sleeping.

        Without this change, a system that generated may protocol errors due
        to signal integrity issues was taking more than an hour to boot, due
        to all the retries.

END