[SCSI] bfa: Support for FC BB credit recovery
This patch includes changes to 1) Enable/disable fc credit recovery on
Brocade FC adapter port operating at max supported speed. 2) Get credit
recovery status and stats related to credit loss and recovered credits
Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c
index 555e7db..bda1500 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -402,25 +402,43 @@
}
int
-bfad_iocmd_port_cfg_bbsc(struct bfad_s *bfad, void *cmd, unsigned int v_cmd)
+bfad_iocmd_port_cfg_bbcr(struct bfad_s *bfad, unsigned int cmd, void *pcmd)
{
- struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd;
- struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa);
- unsigned long flags;
+ struct bfa_bsg_bbcr_enable_s *iocmd =
+ (struct bfa_bsg_bbcr_enable_s *)pcmd;
+ unsigned long flags;
+ int rc;
spin_lock_irqsave(&bfad->bfad_lock, flags);
- if (bfa_ioc_get_type(&bfad->bfa.ioc) == BFA_IOC_TYPE_FC) {
- if (v_cmd == IOCMD_PORT_BBSC_ENABLE)
- fcport->cfg.bb_scn_state = BFA_TRUE;
- else if (v_cmd == IOCMD_PORT_BBSC_DISABLE)
- fcport->cfg.bb_scn_state = BFA_FALSE;
+ if (cmd == IOCMD_PORT_BBCR_ENABLE)
+ rc = bfa_fcport_cfg_bbcr(&bfad->bfa, BFA_TRUE, iocmd->bb_scn);
+ else if (cmd == IOCMD_PORT_BBCR_DISABLE)
+ rc = bfa_fcport_cfg_bbcr(&bfad->bfa, BFA_FALSE, 0);
+ else {
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+ return -EINVAL;
}
spin_unlock_irqrestore(&bfad->bfad_lock, flags);
- iocmd->status = BFA_STATUS_OK;
+ iocmd->status = rc;
return 0;
}
+int
+bfad_iocmd_port_get_bbcr_attr(struct bfad_s *bfad, void *pcmd)
+{
+ struct bfa_bsg_bbcr_attr_s *iocmd = (struct bfa_bsg_bbcr_attr_s *) pcmd;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ iocmd->status =
+ bfa_fcport_get_bbcr_attr(&bfad->bfa, &iocmd->attr);
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+ return 0;
+}
+
+
static int
bfad_iocmd_lport_get_attr(struct bfad_s *bfad, void *cmd)
{
@@ -2750,9 +2768,12 @@
case IOCMD_PORT_CFG_MAXFRSZ:
rc = bfad_iocmd_port_cfg_maxfrsize(bfad, iocmd);
break;
- case IOCMD_PORT_BBSC_ENABLE:
- case IOCMD_PORT_BBSC_DISABLE:
- rc = bfad_iocmd_port_cfg_bbsc(bfad, iocmd, cmd);
+ case IOCMD_PORT_BBCR_ENABLE:
+ case IOCMD_PORT_BBCR_DISABLE:
+ rc = bfad_iocmd_port_cfg_bbcr(bfad, cmd, iocmd);
+ break;
+ case IOCMD_PORT_BBCR_GET_ATTR:
+ rc = bfad_iocmd_port_get_bbcr_attr(bfad, iocmd);
break;
case IOCMD_LPORT_GET_ATTR:
rc = bfad_iocmd_lport_get_attr(bfad, iocmd);