[SCSI] lpfc 8.3.35: Fixed not reporting logical link speed to SCSI midlayer when QoS not on

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

5 files changed, 151 insertions, 16 deletions

diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index e470c489de07..4380a44000bc 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -467,3 +467,4 @@ int lpfc_sli4_read_config(struct lpfc_hba *);
 void lpfc_sli4_node_prep(struct lpfc_hba *);
 int lpfc_sli4_xri_sgl_update(struct lpfc_hba *);
 void lpfc_free_sgl_list(struct lpfc_hba *, struct list_head *);
+uint32_t lpfc_sli_port_speed_get(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index e2838e90ddfc..2cdeb5434fb7 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -1305,6 +1305,11 @@ struct lpfc_mbx_mq_create_ext {
 #define lpfc_mbx_mq_create_ext_async_evt_link_SHIFT     LPFC_TRAILER_CODE_LINK
 #define lpfc_mbx_mq_create_ext_async_evt_link_MASK      0x00000001
 #define lpfc_mbx_mq_create_ext_async_evt_link_WORD      async_evt_bmap
+#define LPFC_EVT_CODE_LINK_NO_LINK      0x0
+#define LPFC_EVT_CODE_LINK_10_MBIT      0x1
+#define LPFC_EVT_CODE_LINK_100_MBIT     0x2
+#define LPFC_EVT_CODE_LINK_1_GBIT       0x3
+#define LPFC_EVT_CODE_LINK_10_GBIT      0x4
 #define lpfc_mbx_mq_create_ext_async_evt_fip_SHIFT      LPFC_TRAILER_CODE_FCOE
 #define lpfc_mbx_mq_create_ext_async_evt_fip_MASK       0x00000001
 #define lpfc_mbx_mq_create_ext_async_evt_fip_WORD       async_evt_bmap
@@ -1314,6 +1319,13 @@ struct lpfc_mbx_mq_create_ext {
 #define lpfc_mbx_mq_create_ext_async_evt_fc_SHIFT       LPFC_TRAILER_CODE_FC
 #define lpfc_mbx_mq_create_ext_async_evt_fc_MASK        0x00000001
 #define lpfc_mbx_mq_create_ext_async_evt_fc_WORD        async_evt_bmap
+#define LPFC_EVT_CODE_FC_NO_LINK        0x0
+#define LPFC_EVT_CODE_FC_1_GBAUD        0x1
+#define LPFC_EVT_CODE_FC_2_GBAUD        0x2
+#define LPFC_EVT_CODE_FC_4_GBAUD        0x4
+#define LPFC_EVT_CODE_FC_8_GBAUD        0x8
+#define LPFC_EVT_CODE_FC_10_GBAUD       0xA
+#define LPFC_EVT_CODE_FC_16_GBAUD       0x10
 #define lpfc_mbx_mq_create_ext_async_evt_sli_SHIFT      LPFC_TRAILER_CODE_SLI
 #define lpfc_mbx_mq_create_ext_async_evt_sli_MASK       0x00000001
 #define lpfc_mbx_mq_create_ext_async_evt_sli_WORD       async_evt_bmap
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 5a10acd4cdee..7dc4218d9c4c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -3508,6 +3508,119 @@ lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
 }
 
 /**
+ * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to get an SLI3 FC port's link speed in Mbps.
+ *
+ * Return: link speed in terms of Mbps.
+ **/
+uint32_t
+lpfc_sli_port_speed_get(struct lpfc_hba *phba)
+{
+        uint32_t link_speed;
+
+        if (!lpfc_is_link_up(phba))
+                return 0;
+
+        switch (phba->fc_linkspeed) {
+        case LPFC_LINK_SPEED_1GHZ:
+                link_speed = 1000;
+                break;
+        case LPFC_LINK_SPEED_2GHZ:
+                link_speed = 2000;
+                break;
+        case LPFC_LINK_SPEED_4GHZ:
+                link_speed = 4000;
+                break;
+        case LPFC_LINK_SPEED_8GHZ:
+                link_speed = 8000;
+                break;
+        case LPFC_LINK_SPEED_10GHZ:
+                link_speed = 10000;
+                break;
+        case LPFC_LINK_SPEED_16GHZ:
+                link_speed = 16000;
+                break;
+        default:
+                link_speed = 0;
+        }
+        return link_speed;
+}
+
+/**
+ * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
+ * @phba: pointer to lpfc hba data structure.
+ * @evt_code: asynchronous event code.
+ * @speed_code: asynchronous event link speed code.
+ *
+ * This routine is to parse the giving SLI4 async event link speed code into
+ * value of Mbps for the link speed.
+ *
+ * Return: link speed in terms of Mbps.
+ **/
+static uint32_t
+lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
+                           uint8_t speed_code)
+{
+        uint32_t port_speed;
+
+        switch (evt_code) {
+        case LPFC_TRAILER_CODE_LINK:
+                switch (speed_code) {
+                case LPFC_EVT_CODE_LINK_NO_LINK:
+                        port_speed = 0;
+                        break;
+                case LPFC_EVT_CODE_LINK_10_MBIT:
+                        port_speed = 10;
+                        break;
+                case LPFC_EVT_CODE_LINK_100_MBIT:
+                        port_speed = 100;
+                        break;
+                case LPFC_EVT_CODE_LINK_1_GBIT:
+                        port_speed = 1000;
+                        break;
+                case LPFC_EVT_CODE_LINK_10_GBIT:
+                        port_speed = 10000;
+                        break;
+                default:
+                        port_speed = 0;
+                }
+                break;
+        case LPFC_TRAILER_CODE_FC:
+                switch (speed_code) {
+                case LPFC_EVT_CODE_FC_NO_LINK:
+                        port_speed = 0;
+                        break;
+                case LPFC_EVT_CODE_FC_1_GBAUD:
+                        port_speed = 1000;
+                        break;
+                case LPFC_EVT_CODE_FC_2_GBAUD:
+                        port_speed = 2000;
+                        break;
+                case LPFC_EVT_CODE_FC_4_GBAUD:
+                        port_speed = 4000;
+                        break;
+                case LPFC_EVT_CODE_FC_8_GBAUD:
+                        port_speed = 8000;
+                        break;
+                case LPFC_EVT_CODE_FC_10_GBAUD:
+                        port_speed = 10000;
+                        break;
+                case LPFC_EVT_CODE_FC_16_GBAUD:
+                        port_speed = 16000;
+                        break;
+                default:
+                        port_speed = 0;
+                }
+                break;
+        default:
+                port_speed = 0;
+        }
+        return port_speed;
+}
+
+/**
  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
  * @phba: pointer to lpfc hba data structure.
  * @acqe_link: pointer to the async link completion queue entry.
@@ -3564,7 +3677,8 @@ lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
 
         /* Keep the link status for extra SLI4 state machine reference */
         phba->sli4_hba.link_state.speed =
-                                bf_get(lpfc_acqe_link_speed, acqe_link);
+                        lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
+                                bf_get(lpfc_acqe_link_speed, acqe_link));
         phba->sli4_hba.link_state.duplex =
                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
         phba->sli4_hba.link_state.status =
@@ -3576,7 +3690,8 @@ lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
         phba->sli4_hba.link_state.fault =
                                 bf_get(lpfc_acqe_link_fault, acqe_link);
         phba->sli4_hba.link_state.logical_speed =
-                        bf_get(lpfc_acqe_logical_link_speed, acqe_link);
+                        bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
+
         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
@@ -3586,7 +3701,7 @@ lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
                         phba->sli4_hba.link_state.status,
                         phba->sli4_hba.link_state.type,
                         phba->sli4_hba.link_state.number,
-                        phba->sli4_hba.link_state.logical_speed * 10,
+                        phba->sli4_hba.link_state.logical_speed,
                         phba->sli4_hba.link_state.fault);
         /*
          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
@@ -3658,7 +3773,8 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
         }
         /* Keep the link status for extra SLI4 state machine reference */
         phba->sli4_hba.link_state.speed =
-                                bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
+                        lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
+                                bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
         phba->sli4_hba.link_state.topology =
                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
@@ -3671,7 +3787,7 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
         phba->sli4_hba.link_state.fault =
                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
         phba->sli4_hba.link_state.logical_speed =
-                                bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
+                                bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
@@ -3681,7 +3797,7 @@ lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
                         phba->sli4_hba.link_state.status,
                         phba->sli4_hba.link_state.type,
                         phba->sli4_hba.link_state.number,
-                        phba->sli4_hba.link_state.logical_speed * 10,
+                        phba->sli4_hba.link_state.logical_speed,
                         phba->sli4_hba.link_state.fault);
         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
         if (!pmb) {
@@ -4171,11 +4287,11 @@ lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
         phba->fcoe_eventtag = acqe_grp5->event_tag;
         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
         phba->sli4_hba.link_state.logical_speed =
-                (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
+                (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
                         "2789 GRP5 Async Event: Updating logical link speed "
-                        "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
-                        (phba->sli4_hba.link_state.logical_speed*10));
+                        "from %dMbps to %dMbps\n", prev_ll_spd,
+                        phba->sli4_hba.link_state.logical_speed);
 }
 
 /**
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 41ee7d5c415a..7f45ac9964a9 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4163,7 +4163,7 @@ lpfc_info(struct Scsi_Host *host)
 {
         struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata;
         struct lpfc_hba   *phba = vport->phba;
-        int len;
+        int len, link_speed = 0;
         static char  lpfcinfobuf[384];
 
         memset(lpfcinfobuf,0,384);
@@ -4184,12 +4184,18 @@ lpfc_info(struct Scsi_Host *host)
                                  phba->Port);
                 }
                 len = strlen(lpfcinfobuf);
-                if (phba->sli4_hba.link_state.logical_speed) {
-                        snprintf(lpfcinfobuf + len,
-                                 384-len,
-                                 " Logical Link Speed: %d Mbps",
-                                 phba->sli4_hba.link_state.logical_speed * 10);
+                if (phba->sli_rev <= LPFC_SLI_REV3) {
+                        link_speed = lpfc_sli_port_speed_get(phba);
+                } else {
+                        if (phba->sli4_hba.link_state.logical_speed)
+                                link_speed =
+                                      phba->sli4_hba.link_state.logical_speed;
+                        else
+                                link_speed = phba->sli4_hba.link_state.speed;
                 }
+                if (link_speed != 0)
+                        snprintf(lpfcinfobuf + len, 384-len,
+                                 " Logical Link Speed: %d Mbps", link_speed);
         }
         return lpfcinfobuf;
 }
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 613f581faf94..f44a06a4c6e7 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -168,7 +168,7 @@ struct lpfc_queue {
 };
 
 struct lpfc_sli4_link {
-        uint8_t speed;
+        uint16_t speed;
         uint8_t duplex;
         uint8_t status;
         uint8_t type;