[SCSI] bfa: Add fc host issue lip support

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 38 insertions, 1 deletions

diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index 1938fe0473e9..06310b8e562d 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -442,6 +442,43 @@ bfad_im_vport_create(struct fc_vport *fc_vport, bool disable)
         return status;
 }
 
+int
+bfad_im_issue_fc_host_lip(struct Scsi_Host *shost)
+{
+        struct bfad_im_port_s *im_port =
+                        (struct bfad_im_port_s *) shost->hostdata[0];
+        struct bfad_s *bfad = im_port->bfad;
+        struct bfad_hal_comp fcomp;
+        unsigned long flags;
+        uint32_t status;
+
+        init_completion(&fcomp.comp);
+        spin_lock_irqsave(&bfad->bfad_lock, flags);
+        status = bfa_port_disable(&bfad->bfa.modules.port,
+                                        bfad_hcb_comp, &fcomp);
+        spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+        if (status != BFA_STATUS_OK)
+                return -EIO;
+
+        wait_for_completion(&fcomp.comp);
+        if (fcomp.status != BFA_STATUS_OK)
+                return -EIO;
+
+        spin_lock_irqsave(&bfad->bfad_lock, flags);
+        status = bfa_port_enable(&bfad->bfa.modules.port,
+                                        bfad_hcb_comp, &fcomp);
+        spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+        if (status != BFA_STATUS_OK)
+                return -EIO;
+
+        wait_for_completion(&fcomp.comp);
+        if (fcomp.status != BFA_STATUS_OK)
+                return -EIO;
+
+        return 0;
+}
+
 static int
 bfad_im_vport_delete(struct fc_vport *fc_vport)
 {
@@ -579,7 +616,7 @@ struct fc_function_template bfad_im_fc_function_template = {
         .show_rport_dev_loss_tmo = 1,
         .get_rport_dev_loss_tmo = bfad_im_get_rport_loss_tmo,
         .set_rport_dev_loss_tmo = bfad_im_set_rport_loss_tmo,
-
+        .issue_fc_host_lip = bfad_im_issue_fc_host_lip,
         .vport_create = bfad_im_vport_create,
         .vport_delete = bfad_im_vport_delete,
         .vport_disable = bfad_im_vport_disable,