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| author | James Smart <jsmart2021@gmail.com> | 2018-10-23 13:41:10 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-11-06 20:42:51 -0500 |
| commit | 7ea92eb4589dbf0cff7ee169e3c23eae00149762 (patch) | |
| tree | c6f15521ae986f0b95d866ac62b1617a9166734f /drivers/scsi/lpfc/lpfc_els.c | |
| parent | d83ca3ea833d7a66d49225e4191c4e37cab8f079 (diff) | |
| download | linux-7ea92eb4589dbf0cff7ee169e3c23eae00149762.tar.gz | |
scsi: lpfc: Implement GID_PT on Nameserver query to support faster failover
The switches seem to respond faster to GID_PT vs GID_FT NameServer queries. Add support for GID_PT to be used over GID_FT to enable faster storage failover detection. Includes addition of new module parameter to select between GID_PT and GID_FT (GID_FT is default). Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_els.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_els.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index ebd6c7251ad8..6db426fec493 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -6371,6 +6371,7 @@ int lpfc_els_handle_rscn(struct lpfc_vport *vport) { struct lpfc_nodelist *ndlp; + struct lpfc_hba *phba = vport->phba; /* Ignore RSCN if the port is being torn down. */ if (vport->load_flag & FC_UNLOADING) { @@ -6399,8 +6400,15 @@ lpfc_els_handle_rscn(struct lpfc_vport *vport) * flush the RSCN. Otherwise, the outstanding requests * need to complete. */ - if (lpfc_issue_gidft(vport) > 0) + if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_FT) { + if (lpfc_issue_gidft(vport) > 0) + return 1; + } else if (phba->cfg_ns_query == LPFC_NS_QUERY_GID_PT) { + if (lpfc_issue_gidpt(vport) > 0) + return 1; + } else { return 1; + } } else { /* Nameserver login in question. Revalidate. */ if (ndlp) { |