scsi: qedf: Add driver state to 'driver_stats' debugfs node

Add debugfs node for driver stats.

[mkp: typo]

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qedf/qedf_debugfs.c b/drivers/scsi/qedf/qedf_debugfs.c
index 6ae78dd..2353892 100644 (file)
--- a/drivers/scsi/qedf/qedf_debugfs.c
+++ b/drivers/scsi/qedf/qedf_debugfs.c
@@ -293,6 +293,33 @@ qedf_dbg_io_trace_open(struct inode *inode, struct file *file)
        return single_open(file, qedf_io_trace_show, qedf);
 }
 
+/* Based on fip_state enum from libfcoe.h */
+static char *fip_state_names[] = {
+       "FIP_ST_DISABLED",
+       "FIP_ST_LINK_WAIT",
+       "FIP_ST_AUTO",
+       "FIP_ST_NON_FIP",
+       "FIP_ST_ENABLED",
+       "FIP_ST_VNMP_START",
+       "FIP_ST_VNMP_PROBE1",
+       "FIP_ST_VNMP_PROBE2",
+       "FIP_ST_VNMP_CLAIM",
+       "FIP_ST_VNMP_UP",
+};
+
+/* Based on fc_rport_state enum from libfc.h */
+static char *fc_rport_state_names[] = {
+       "RPORT_ST_INIT",
+       "RPORT_ST_FLOGI",
+       "RPORT_ST_PLOGI_WAIT",
+       "RPORT_ST_PLOGI",
+       "RPORT_ST_PRLI",
+       "RPORT_ST_RTV",
+       "RPORT_ST_READY",
+       "RPORT_ST_ADISC",
+       "RPORT_ST_DELETE",
+};
+
 static int
 qedf_driver_stats_show(struct seq_file *s, void *unused)
 {
@@ -300,6 +327,25 @@ qedf_driver_stats_show(struct seq_file *s, void *unused)
        struct qedf_rport *fcport;
        struct fc_rport_priv *rdata;
 
+       seq_printf(s, "Host WWNN/WWPN: %016llx/%016llx\n",
+                  qedf->wwnn, qedf->wwpn);
+       seq_printf(s, "Host NPortID: %06x\n", qedf->lport->port_id);
+       seq_printf(s, "Link State: %s\n", atomic_read(&qedf->link_state) ?
+           "Up" : "Down");
+       seq_printf(s, "Logical Link State: %s\n", qedf->lport->link_up ?
+           "Up" : "Down");
+       seq_printf(s, "FIP state: %s\n", fip_state_names[qedf->ctlr.state]);
+       seq_printf(s, "FIP VLAN ID: %d\n", qedf->vlan_id & 0xfff);
+       seq_printf(s, "FIP 802.1Q Priority: %d\n", qedf->prio);
+       if (qedf->ctlr.sel_fcf) {
+               seq_printf(s, "FCF WWPN: %016llx\n",
+                          qedf->ctlr.sel_fcf->switch_name);
+               seq_printf(s, "FCF MAC: %pM\n", qedf->ctlr.sel_fcf->fcf_mac);
+       } else {
+               seq_puts(s, "FCF not selected\n");
+       }
+
+       seq_puts(s, "\nSGE stats:\n\n");
        seq_printf(s, "cmg_mgr free io_reqs: %d\n",
            atomic_read(&qedf->cmd_mgr->free_list_cnt));
        seq_printf(s, "slow SGEs: %d\n", qedf->slow_sge_ios);
@@ -312,9 +358,12 @@ qedf_driver_stats_show(struct seq_file *s, void *unused)
                rdata = fcport->rdata;
                if (rdata == NULL)
                        continue;
-               seq_printf(s, "%06x: free_sqes: %d, num_active_ios: %d\n",
-                   rdata->ids.port_id, atomic_read(&fcport->free_sqes),
-                   atomic_read(&fcport->num_active_ios));
+               seq_printf(s, "%016llx/%016llx/%06x: state=%s, free_sqes=%d, num_active_ios=%d\n",
+                          rdata->rport->node_name, rdata->rport->port_name,
+                          rdata->ids.port_id,
+                          fc_rport_state_names[rdata->rp_state],
+                          atomic_read(&fcport->free_sqes),
+                          atomic_read(&fcport->num_active_ios));
        }
        rcu_read_unlock();