scsi: qla2xxx: Fix FC-NVMe LUN discovery

commit a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify
fabric discovery") introduced regression when it did not consider
FC-NVMe code path which broke NVMe LUN discovery.

Fixes: a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify fabric discovery")
Signed-off-by: Darren Trapp <darren.trapp@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 3ca4b6a..c9689f9 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2217,6 +2217,7 @@ typedef struct {
 
 /* FCP-4 types */
 #define FC4_TYPE_FCP_SCSI      0x08
+#define FC4_TYPE_NVME          0x28
 #define FC4_TYPE_OTHER         0x0
 #define FC4_TYPE_UNKNOWN       0xff
 

diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 21eff2d..403fa09 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -3973,6 +3973,9 @@ out:
        spin_lock_irqsave(&vha->work_lock, flags);
        vha->scan.scan_flags &= ~SF_SCANNING;
        spin_unlock_irqrestore(&vha->work_lock, flags);
+
+       if ((fc4type == FC4_TYPE_FCP_SCSI) && vha->flags.nvme_enabled)
+               qla24xx_async_gpnft(vha, FC4_TYPE_NVME);
 }
 
 static void qla2x00_async_gpnft_gnnft_sp_done(void *s, int res)

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index d5a45c4..00329dd 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1061,6 +1061,7 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
        fc_port_t *fcport = ea->fcport;
        struct port_database_24xx *pd;
        struct srb *sp = ea->sp;
+       uint8_t ls;
 
        pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in;
 
@@ -1073,7 +1074,12 @@ void qla24xx_handle_gpdb_event(scsi_qla_host_t *vha, struct event_arg *ea)
        if (fcport->disc_state == DSC_DELETE_PEND)
                return;
 
-       switch (pd->current_login_state) {
+       if (fcport->fc4f_nvme)
+               ls = pd->current_login_state >> 4;
+       else
+               ls = pd->current_login_state & 0xf;
+
+       switch (ls) {
        case PDS_PRLI_COMPLETE:
                __qla24xx_parse_gpdb(vha, fcport, pd);
                break;

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 585f371..285911e 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -4807,9 +4807,12 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
                        fcport->d_id = e->u.new_sess.id;
                        fcport->flags |= FCF_FABRIC_DEVICE;
                        fcport->fw_login_state = DSC_LS_PLOGI_PEND;
-                       if (e->u.new_sess.fc4_type == FC4_TYPE_FCP_SCSI)
+                       if (e->u.new_sess.fc4_type == FC4_TYPE_FCP_SCSI) {
                                fcport->fc4_type = FC4_TYPE_FCP_SCSI;
-
+                       } else if (e->u.new_sess.fc4_type == FC4_TYPE_NVME) {
+                               fcport->fc4_type = FC4_TYPE_OTHER;
+                               fcport->fc4f_nvme = FC4_TYPE_NVME;
+                       }
                        memcpy(fcport->port_name, e->u.new_sess.port_name,
                            WWN_SIZE);
                } else {