[SCSI] lpfc 8.3.8: Add code to display logical link speed

Display Logical Link Speed when supported and is non-zero.

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

4 files changed, 13 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 8a2a1c5935c6..c2bec6e6222f 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -1959,6 +1959,9 @@ struct lpfc_acqe_link {
 #define LPFC_ASYNC_LINK_FAULT_NONE      0x0
 #define LPFC_ASYNC_LINK_FAULT_LOCAL     0x1
 #define LPFC_ASYNC_LINK_FAULT_REMOTE    0x2
+#define lpfc_acqe_qos_link_speed_SHIFT  16
+#define lpfc_acqe_qos_link_speed_MASK   0x0000FFFF
+#define lpfc_acqe_qos_link_speed_WORD   word1
         uint32_t event_tag;
         uint32_t trailer;
 };
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4d20c4148fae..e80e95d95cde 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -2981,6 +2981,8 @@ lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
                                 bf_get(lpfc_acqe_link_physical, acqe_link);
         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_qos_link_speed, acqe_link);
 
         /* Invoke the lpfc_handle_latt mailbox command callback function */
         lpfc_mbx_cmpl_read_la(phba, pmb);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index d5cc6b8d32f2..8f4b90a9d151 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -2701,6 +2701,13 @@ lpfc_info(struct Scsi_Host *host)
                                  " port %s",
                                  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);
+                }
         }
         return lpfcinfobuf;
 }
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 44e5f574236b..2e5e40576864 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -126,6 +126,7 @@ struct lpfc_sli4_link {
         uint8_t status;
         uint8_t physical;
         uint8_t fault;
+        uint16_t logical_speed;
 };
 
 struct lpfc_fcf {