From: Krishna Gudipati <kgudipat@xxxxxxxxxxx>
Change details:
- Implemented the FC function template set_vport_symbolic_name entry
point to modify the vport symbolic name from sysfs.
- Implemented support to send RSPN_ID to switch to register the
modified vport symbolic name.
Signed-off-by: Krishna Gudipati <kgudipat@xxxxxxxxxxx>
---
drivers/scsi/bfa/bfa_fcs.h | 2 +
drivers/scsi/bfa/bfa_fcs_lport.c | 63 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/bfa/bfad_attr.c | 32 +++++++++++++++++++
3 files changed, 97 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 51c9e13..050a7e9 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -338,6 +338,8 @@ void bfa_fcs_lport_ns_init(struct bfa_fcs_lport_s *vport);
void bfa_fcs_lport_ns_offline(struct bfa_fcs_lport_s *vport);
void bfa_fcs_lport_ns_online(struct bfa_fcs_lport_s *vport);
void bfa_fcs_lport_ns_query(struct bfa_fcs_lport_s *port);
+void bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg,
+ struct bfa_fcxp_s *fcxp_alloced);
void bfa_fcs_lport_scn_init(struct bfa_fcs_lport_s *vport);
void bfa_fcs_lport_scn_offline(struct bfa_fcs_lport_s *vport);
void bfa_fcs_lport_scn_online(struct bfa_fcs_lport_s *vport);
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index bcc4966..f8e8017 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -4355,6 +4355,69 @@ bfa_fcs_lport_ns_boot_target_disc(bfa_fcs_lport_t *port)
}
}
+void
+bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
+{
+ struct bfa_fcs_lport_ns_s *ns = cbarg;
+ struct bfa_fcs_lport_s *port = ns->port;
+ struct fchs_s fchs;
+ struct bfa_fcxp_s *fcxp;
+ u8 symbl[256];
+ u8 *psymbl = &symbl[0];
+ int len;
+
+ if (!bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online))
+ return;
+
+ /* Avoid sending RSPN in the following states. */
+ if (bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_offline) ||
+ bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_sending) ||
+ bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi) ||
+ bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_retry) ||
+ bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_rspn_id_retry))
+ return;
+
+ memset(symbl, 0, sizeof(symbl));
+ bfa_trc(port->fcs, port->port_cfg.pwwn);
+
+ fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
+ if (!fcxp) {
+ port->stats.ns_rspnid_alloc_wait++;
+ bfa_fcs_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
+ bfa_fcs_lport_ns_util_send_rspn_id, ns);
+ return;
+ }
+
+ ns->fcxp = fcxp;
+
+ if (port->vport) {
+ /*
+ * For Vports, we append the vport's port symbolic name
+ * to that of the base port.
+ */
+ strncpy((char *)psymbl, (char *)&(bfa_fcs_lport_get_psym_name
+ (bfa_fcs_get_base_port(port->fcs))),
+ strlen((char *)&bfa_fcs_lport_get_psym_name(
+ bfa_fcs_get_base_port(port->fcs))));
+
+ /* Ensure we have a null terminating string. */
+ ((char *)psymbl)[strlen((char *)&bfa_fcs_lport_get_psym_name(
+ bfa_fcs_get_base_port(port->fcs)))] = 0;
+
+ strncat((char *)psymbl,
+ (char *)&(bfa_fcs_lport_get_psym_name(port)),
+ strlen((char *)&bfa_fcs_lport_get_psym_name(port)));
+ }
+
+ len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
+ bfa_fcs_lport_get_fcid(port), 0, psymbl);
+
+ bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
+ FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0);
+
+ port->stats.ns_rspnid_sent++;
+}
+
/*
* FCS SCN
*/
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index b839274..1d18a80 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -587,6 +587,37 @@ bfad_im_vport_disable(struct fc_vport *fc_vport, bool disable)
return 0;
}
+void
+bfad_im_vport_set_symbolic_name(struct fc_vport *fc_vport)
+{
+ struct bfad_vport_s *vport = (struct bfad_vport_s *)fc_vport->dd_data;
+ struct bfad_im_port_s *im_port =
+ (struct bfad_im_port_s *)vport->drv_port.im_port;
+ struct bfad_s *bfad = im_port->bfad;
+ struct Scsi_Host *vshost = vport->drv_port.im_port->shost;
+ char *sym_name = fc_vport->symbolic_name;
+ struct bfa_fcs_vport_s *fcs_vport;
+ wwn_t pwwn;
+ unsigned long flags;
+
+ u64_to_wwn(fc_host_port_name(vshost), (u8 *)&pwwn);
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0, pwwn);
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+
+ if (fcs_vport == NULL)
+ return;
+
+ spin_lock_irqsave(&bfad->bfad_lock, flags);
+ if (strlen(sym_name) > 0) {
+ strcpy(fcs_vport->lport.port_cfg.sym_name.symname, sym_name);
+ bfa_fcs_lport_ns_util_send_rspn_id(
+ BFA_FCS_GET_NS_FROM_PORT((&fcs_vport->lport)), NULL);
+ }
+ spin_unlock_irqrestore(&bfad->bfad_lock, flags);
+}
+
struct fc_function_template bfad_im_fc_function_template = {
/* Target dynamic attributes */
@@ -640,6 +671,7 @@ struct fc_function_template bfad_im_fc_function_template = {
.vport_create = bfad_im_vport_create,
.vport_delete = bfad_im_vport_delete,
.vport_disable = bfad_im_vport_disable,
+ .set_vport_symbolic_name = bfad_im_vport_set_symbolic_name,
.bsg_request = bfad_im_bsg_request,
.bsg_timeout = bfad_im_bsg_timeout,
};
--
1.7.3.rc1
--
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