scsi: lpfc: Add 256 Gb link speed support

Update routines to support 256 Gb link speed for LPe37000/LPe38000
adapters. 256 Gb speeds can be seen on trunk links.

Link: https://lore.kernel.org/r/20210722221721.74388-5-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

6 files changed, 26 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index a5154856bc0f..869c2b6f1515 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -6745,6 +6745,9 @@ lpfc_get_host_speed(struct Scsi_Host *shost)
 		case LPFC_LINK_SPEED_128GHZ:
 			fc_host_speed(shost) = FC_PORTSPEED_128GBIT;
 			break;
+		case LPFC_LINK_SPEED_256GHZ:
+			fc_host_speed(shost) = FC_PORTSPEED_256GBIT;
+			break;
 		default:
 			fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
 			break;
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 1acb8820a08e..a1c85fa135a9 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -2846,6 +2846,8 @@ lpfc_fdmi_port_attr_support_speed(struct lpfc_vport *vport,
 
 	ae->un.AttrInt = 0;
 	if (!(phba->hba_flag & HBA_FCOE_MODE)) {
+		if (phba->lmt & LMT_256Gb)
+			ae->un.AttrInt |= HBA_PORTSPEED_256GFC;
 		if (phba->lmt & LMT_128Gb)
 			ae->un.AttrInt |= HBA_PORTSPEED_128GFC;
 		if (phba->lmt & LMT_64Gb)
@@ -2927,6 +2929,9 @@ lpfc_fdmi_port_attr_speed(struct lpfc_vport *vport,
 		case LPFC_LINK_SPEED_128GHZ:
 			ae->un.AttrInt = HBA_PORTSPEED_128GFC;
 			break;
+		case LPFC_LINK_SPEED_256GHZ:
+			ae->un.AttrInt = HBA_PORTSPEED_256GFC;
+			break;
 		default:
 			ae->un.AttrInt = HBA_PORTSPEED_UNKNOWN;
 			break;
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 342c7e28ee95..08ae2b12b92c 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -6105,6 +6105,12 @@ lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
 	case LPFC_LINK_SPEED_64GHZ:
 		rdp_speed = RDP_PS_64GB;
 		break;
+	case LPFC_LINK_SPEED_128GHZ:
+		rdp_speed = RDP_PS_128GB;
+		break;
+	case LPFC_LINK_SPEED_256GHZ:
+		rdp_speed = RDP_PS_256GB;
+		break;
 	default:
 		rdp_speed = RDP_PS_UNKNOWN;
 		break;
@@ -6112,6 +6118,8 @@ lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba)
 
 	desc->info.port_speed.speed = cpu_to_be16(rdp_speed);
 
+	if (phba->lmt & LMT_256Gb)
+		rdp_cap |= RDP_PS_256GB;
 	if (phba->lmt & LMT_128Gb)
 		rdp_cap |= RDP_PS_128GB;
 	if (phba->lmt & LMT_64Gb)
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 32fb3be42b26..6da2daf7d9e3 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -3331,6 +3331,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 		case LPFC_LINK_SPEED_32GHZ:
 		case LPFC_LINK_SPEED_64GHZ:
 		case LPFC_LINK_SPEED_128GHZ:
+		case LPFC_LINK_SPEED_256GHZ:
 			break;
 		default:
 			phba->fc_linkspeed = LPFC_LINK_SPEED_UNKNOWN;
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index ead8e91e8625..2c0aaa0a301d 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -4679,6 +4679,8 @@ static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
 	if (phba->hba_flag & HBA_FCOE_MODE)
 		return;
 
+	if (phba->lmt & LMT_256Gb)
+		fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
 	if (phba->lmt & LMT_128Gb)
 		fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
 	if (phba->lmt & LMT_64Gb)
@@ -5087,6 +5089,9 @@ lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
 		case LPFC_FC_LA_SPEED_128G:
 			port_speed = 128000;
 			break;
+		case LPFC_FC_LA_SPEED_256G:
+			port_speed = 256000;
+			break;
 		default:
 			port_speed = 0;
 		}
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index f76667b7da7b..46989532c23d 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -142,6 +142,10 @@ struct lpfc_scsicmd_bkt {
 #define FC_PORTSPEED_128GBIT	0x2000
 #endif
 
+#ifndef FC_PORTSPEED_256GBIT
+#define FC_PORTSPEED_256GBIT	0x4000
+#endif
+
 #define TXRDY_PAYLOAD_LEN	12
 
 /* For sysfs/debugfs tmp string max len */