[SCSI] lpfc 8.3.19: Added support for ELS RRQ command

Added support for ELS RRQ command

- Add new routine lpfc_set_rrq_active() to track XRI qualifier state.
- Add new module parameter lpfc_enable_rrq to control RRQ operation.
- Add logic to ELS RRQ completion handler and xri qualifier timeout
  to clear XRI qualifier state.
- Use OX_ID from XRI_ABORTED_CQE for RRQ payload.
- Tie abort and XRI_ABORTED_CQE andler to RRQ generation.

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 45bd72a9f60e..6be942ae8a07 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1977,6 +1977,13 @@ lpfc_param_show(enable_npiv);
 lpfc_param_init(enable_npiv, 1, 0, 1);
 static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
 
+int lpfc_enable_rrq;
+module_param(lpfc_enable_rrq, int, 0);
+MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
+lpfc_param_show(enable_rrq);
+lpfc_param_init(enable_rrq, 0, 0, 1);
+static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
+
 /*
 # lpfc_suppress_link_up:  Bring link up at initialization
 #            0x0  = bring link up (issue MBX_INIT_LINK)
@@ -3394,6 +3401,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
         &dev_attr_lpfc_fdmi_on,
         &dev_attr_lpfc_max_luns,
         &dev_attr_lpfc_enable_npiv,
+        &dev_attr_lpfc_enable_rrq,
         &dev_attr_nport_evt_cnt,
         &dev_attr_board_mode,
         &dev_attr_max_vpi,
@@ -4610,6 +4618,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
         lpfc_link_speed_init(phba, lpfc_link_speed);
         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
+        lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
         lpfc_use_msi_init(phba, lpfc_use_msi);
         lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
         lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);