Do not rely on vendor version field of the CSPs to determine if we are in a
FA-PWWN environment. Instead, use the following procedure:
First, during HBA initialization, driver does a READ_CONFIG to determine
if FA-PWWN is configured on the HBA. A LPFC_FAWWPN_CONFIG hba_flag is set
accordingly.
Next, when the link comes up before the driver gets a link up event,
the firmware logs into the fabric with FA-PWWN. If the fabric port does
not support FA-PWWN, the driver will get a Misconfigured FA-WWN async
event before the link up. A LPFC_FAWWPN_FABRIC hba_flag will be set
accordingly.
Finally, if the fabric supports FA-PWWN, the firmware will replace
its CSPs WWN with the Fabric Assigned ones. Then after link up, the
driver will retrieve the Fabric Assigned WWN when it does a
READ_SPARAM mbox command.
Co-developed-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: Justin Tee <justin.tee@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
---
drivers/scsi/lpfc/lpfc.h | 5 +--
drivers/scsi/lpfc/lpfc_attr.c | 18 ++++++--
drivers/scsi/lpfc/lpfc_hbadisc.c | 8 ++++
drivers/scsi/lpfc/lpfc_hw.h | 2 -
drivers/scsi/lpfc/lpfc_hw4.h | 3 ++
drivers/scsi/lpfc/lpfc_init.c | 72 ++++++++++++++++++++++++--------
drivers/scsi/lpfc/lpfc_sli.c | 1 +
drivers/scsi/lpfc/lpfc_sli4.h | 3 ++
8 files changed, 86 insertions(+), 26 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 96602a88b8ed..6a3dccfafec0 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -738,9 +738,8 @@ struct lpfc_vport {
struct list_head rcv_buffer_list;
unsigned long rcv_buffer_time_stamp;
uint32_t vport_flag;
-#define STATIC_VPORT 1
-#define FAWWPN_SET 2
-#define FAWWPN_PARAM_CHG 4
+#define STATIC_VPORT 0x1
+#define FAWWPN_PARAM_CHG 0x2
uint16_t fdmi_num_disc;
uint32_t fdmi_hba_mask;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index ff99f7cdbefa..0d19e469386b 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1120,12 +1120,22 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
len += scnprintf(buf + len, PAGE_SIZE-len,
" Private Loop\n");
} else {
- if (vport->fc_flag & FC_FABRIC)
- len += scnprintf(buf + len, PAGE_SIZE-len,
- " Fabric\n");
- else
+ if (vport->fc_flag & FC_FABRIC) {
+ if (phba->sli_rev == LPFC_SLI_REV4 &&
+ vport->port_type == LPFC_PHYSICAL_PORT &&
+ phba->sli4_hba.fawwpn_flag &
+ LPFC_FAWWPN_FABRIC)
+ len += scnprintf(buf + len,
+ PAGE_SIZE - len,
+ " Fabric FA-PWWN\n");
+ else
+ len += scnprintf(buf + len,
+ PAGE_SIZE - len,
+ " Fabric\n");
+ } else {
len += scnprintf(buf + len, PAGE_SIZE-len,
" Point-2-Point\n");
+ }
}
}
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index f2baf3bd8dd8..2d846256990c 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1183,6 +1183,7 @@ lpfc_port_link_failure(struct lpfc_vport *vport)
void
lpfc_linkdown_port(struct lpfc_vport *vport)
{
+ struct lpfc_hba *phba = vport->phba;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
if (vport->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
@@ -1200,6 +1201,13 @@ lpfc_linkdown_port(struct lpfc_vport *vport)
vport->fc_flag &= ~FC_DISC_DELAYED;
spin_unlock_irq(shost->host_lock);
del_timer_sync(&vport->delayed_disc_tmo);
+
+ if (phba->sli_rev == LPFC_SLI_REV4 &&
+ vport->port_type == LPFC_PHYSICAL_PORT &&
+ phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
+ /* Assume success on link up */
+ phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
+ }
}
int
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 2f5537f57846..70c3dd7b7105 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -511,8 +511,6 @@ struct class_parms {
uint8_t word3Reserved2; /* Fc Word 3, bit 0: 7 */
};
-#define FAPWWN_KEY_VENDOR 0x42524344 /*valid vendor version fawwpn key*/
-
struct serv_parm { /* Structure is in Big Endian format */
struct csp cmn;
struct lpfc_name portName;
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 02e230ed6280..6d20c97762e9 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -2893,6 +2893,9 @@ struct lpfc_mbx_read_config {
#define lpfc_mbx_rd_conf_extnts_inuse_SHIFT 31
#define lpfc_mbx_rd_conf_extnts_inuse_MASK 0x00000001
#define lpfc_mbx_rd_conf_extnts_inuse_WORD word1
+#define lpfc_mbx_rd_conf_fawwpn_SHIFT 30
+#define lpfc_mbx_rd_conf_fawwpn_MASK 0x00000001
+#define lpfc_mbx_rd_conf_fawwpn_WORD word1
#define lpfc_mbx_rd_conf_wcs_SHIFT 28 /* warning signaling */
#define lpfc_mbx_rd_conf_wcs_MASK 0x00000001
#define lpfc_mbx_rd_conf_wcs_WORD word1
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index ae4ea4eccac9..c20d22949e13 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -350,8 +350,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
void
lpfc_update_vport_wwn(struct lpfc_vport *vport)
{
- uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
- u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
+ struct lpfc_hba *phba = vport->phba;
/*
* If the name is empty or there exists a soft name
@@ -370,21 +369,32 @@ lpfc_update_vport_wwn(struct lpfc_vport *vport)
*/
if (vport->fc_portname.u.wwn[0] != 0 &&
memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
- sizeof(struct lpfc_name)))
+ sizeof(struct lpfc_name))) {
vport->vport_flag |= FAWWPN_PARAM_CHG;
- if (vport->fc_portname.u.wwn[0] == 0 ||
- (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
- vport->vport_flag & FAWWPN_SET) {
- memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
- sizeof(struct lpfc_name));
- vport->vport_flag &= ~FAWWPN_SET;
- if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
- vport->vport_flag |= FAWWPN_SET;
+ if (phba->sli_rev == LPFC_SLI_REV4 &&
+ vport->port_type == LPFC_PHYSICAL_PORT &&
+ phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) {
+ lpfc_printf_log(phba, KERN_INFO,
+ LOG_SLI | LOG_DISCOVERY | LOG_ELS,
+ "2701 FA-PWWN change WWPN from %llx to "
+ "%llx: vflag x%x fawwpn_flag x%x\n",
+ wwn_to_u64(vport->fc_portname.u.wwn),
+ wwn_to_u64
+ (vport->fc_sparam.portName.u.wwn),
+ vport->vport_flag,
+ phba->sli4_hba.fawwpn_flag);
+ memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
+ sizeof(struct lpfc_name));
+ }
}
+
+ if (vport->fc_portname.u.wwn[0] == 0)
+ memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
+ sizeof(struct lpfc_name));
else
memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
- sizeof(struct lpfc_name));
+ sizeof(struct lpfc_name));
}
/**
@@ -6542,12 +6552,15 @@ lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
/* Misconfigured WWN. Reports that the SLI Port is configured
* to use FA-WWN, but the attached device doesn’t support it.
- * No driver action is required.
* Event Data1 - N.A, Event Data2 - N.A
+ * This event only happens on the physical port.
*/
- lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
- "2699 Misconfigured FA-WWN - Attached device does "
- "not support FA-WWN\n");
+ lpfc_log_msg(phba, KERN_WARNING, LOG_SLI | LOG_DISCOVERY,
+ "2699 Misconfigured FA-PWWN - Attached device "
+ "does not support FA-PWWN\n");
+ phba->sli4_hba.fawwpn_flag &= ~LPFC_FAWWPN_FABRIC;
+ memset(phba->pport->fc_portname.u.wwn, 0,
+ sizeof(struct lpfc_name));
break;
case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
/* EEPROM failure. No driver action is required */
@@ -8004,6 +8017,18 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
rc = lpfc_sli4_read_config(phba);
if (unlikely(rc))
goto out_free_bsmbx;
+
+ if (phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_CONFIG) {
+ /* Right now the link is down, if FA-PWWN is configured the
+ * firmware will try FLOGI before the driver gets a link up.
+ * If it fails, the driver should get a MISCONFIGURED async
+ * event which will clear this flag. The only notification
+ * the driver gets is if it fails, if it succeeds there is no
+ * notification given. Assume success.
+ */
+ phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_FABRIC;
+ }
+
rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
if (unlikely(rc))
goto out_free_bsmbx;
@@ -9807,7 +9832,7 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
struct lpfc_rsrc_desc_fcfcoe *desc;
char *pdesc_0;
uint16_t forced_link_speed;
- uint32_t if_type, qmin;
+ uint32_t if_type, qmin, fawwpn;
int length, i, rc = 0, rc2;
pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@@ -9849,10 +9874,23 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
}
+ fawwpn = bf_get(lpfc_mbx_rd_conf_fawwpn, rd_config);
+
+ if (fawwpn) {
+ lpfc_printf_log(phba, KERN_INFO,
+ LOG_INIT | LOG_DISCOVERY,
+ "2702 READ_CONFIG: FA-PWWN is "
+ "configured on\n");
+ phba->sli4_hba.fawwpn_flag |= LPFC_FAWWPN_CONFIG;
+ } else {
+ phba->sli4_hba.fawwpn_flag = 0;
+ }
+
phba->sli4_hba.conf_trunk =
bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
phba->sli4_hba.extents_in_use =
bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
+
phba->sli4_hba.max_cfg_param.max_xri =
bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
/* Reduce resource usage in kdump environment */
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index c4b00e188f0f..22fe7de63fb6 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -5265,6 +5265,7 @@ lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
phba->pport->stopped = 0;
phba->link_state = LPFC_INIT_START;
phba->hba_flag = 0;
+ phba->sli4_hba.fawwpn_flag = 0;
spin_unlock_irq(&phba->hbalock);
memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index e0c25699f4b8..1ddad5b170a6 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -981,6 +981,9 @@ struct lpfc_sli4_hba {
#define lpfc_conf_trunk_port3_nd_MASK 0x1
uint8_t flash_id;
uint8_t asic_rev;
+ uint16_t fawwpn_flag; /* FA-WWPN support state */
+#define LPFC_FAWWPN_CONFIG 0x1 /* FA-PWWN is configured */
+#define LPFC_FAWWPN_FABRIC 0x2 /* FA-PWWN success with Fabric */
};
enum lpfc_sge_type {
--
2.26.2
