[SCSI] lpfc 8.3.2 : Addition of SLI4 Interface - FCOE Discovery support
SLI4 supports both FC and FCOE, with some extended topology objects.
This patch adss support for the objects, and updates the disovery
engines for their use.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 2270d9a..9bd7a89 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -275,6 +275,8 @@
!(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
(ndlp->nlp_state != NLP_STE_UNMAPPED_NODE))
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
+
+ lpfc_unregister_unused_fcf(phba);
}
/**
@@ -297,10 +299,11 @@
ret = kzalloc(sizeof(struct lpfc_fast_path_event),
GFP_ATOMIC);
- if (ret)
+ if (ret) {
atomic_inc(&phba->fast_event_count);
- INIT_LIST_HEAD(&ret->work_evt.evt_listp);
- ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
+ INIT_LIST_HEAD(&ret->work_evt.evt_listp);
+ ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
+ }
return ret;
}
@@ -741,6 +744,7 @@
if (phba->link_state == LPFC_LINK_DOWN)
return 0;
spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_DISCOVERED);
if (phba->link_state > LPFC_LINK_DOWN) {
phba->link_state = LPFC_LINK_DOWN;
phba->pport->fc_flag &= ~FC_LBIT;
@@ -748,7 +752,7 @@
spin_unlock_irq(&phba->hbalock);
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
- for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
/* Issue a LINK DOWN event to all nodes */
lpfc_linkdown_port(vports[i]);
}
@@ -858,10 +862,11 @@
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
- for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++)
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
lpfc_linkup_port(vports[i]);
lpfc_destroy_vport_work_array(phba, vports);
- if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
+ if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
+ (phba->sli_rev < LPFC_SLI_REV4))
lpfc_issue_clear_la(phba, phba->pport);
return 0;
@@ -984,9 +989,592 @@
}
static void
+lpfc_mbx_cmpl_reg_fcfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+ unsigned long flags;
+
+ if (mboxq->u.mb.mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "2017 REG_FCFI mbxStatus error x%x "
+ "HBA state x%x\n",
+ mboxq->u.mb.mbxStatus, vport->port_state);
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+ }
+
+ /* Start FCoE discovery by sending a FLOGI. */
+ phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi, &mboxq->u.mqe.un.reg_fcfi);
+ /* Set the FCFI registered flag */
+ spin_lock_irqsave(&phba->hbalock, flags);
+ phba->fcf.fcf_flag |= FCF_REGISTERED;
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ if (vport->port_state != LPFC_FLOGI) {
+ spin_lock_irqsave(&phba->hbalock, flags);
+ phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ lpfc_initial_flogi(vport);
+ }
+
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_fab_name_match - Check if the fcf fabric name match.
+ * @fab_name: pointer to fabric name.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine compare the fcf record's fabric name with provided
+ * fabric name. If the fabric name are identical this function
+ * returns 1 else return 0.
+ **/
+static uint32_t
+lpfc_fab_name_match(uint8_t *fab_name, struct fcf_record *new_fcf_record)
+{
+ if ((fab_name[0] ==
+ bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record)) &&
+ (fab_name[1] ==
+ bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record)) &&
+ (fab_name[2] ==
+ bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record)) &&
+ (fab_name[3] ==
+ bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record)) &&
+ (fab_name[4] ==
+ bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record)) &&
+ (fab_name[5] ==
+ bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record)) &&
+ (fab_name[6] ==
+ bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record)) &&
+ (fab_name[7] ==
+ bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record)))
+ return 1;
+ else
+ return 0;
+}
+
+/**
+ * lpfc_mac_addr_match - Check if the fcf mac address match.
+ * @phba: pointer to lpfc hba data structure.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine compare the fcf record's mac address with HBA's
+ * FCF mac address. If the mac addresses are identical this function
+ * returns 1 else return 0.
+ **/
+static uint32_t
+lpfc_mac_addr_match(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
+{
+ if ((phba->fcf.mac_addr[0] ==
+ bf_get(lpfc_fcf_record_mac_0, new_fcf_record)) &&
+ (phba->fcf.mac_addr[1] ==
+ bf_get(lpfc_fcf_record_mac_1, new_fcf_record)) &&
+ (phba->fcf.mac_addr[2] ==
+ bf_get(lpfc_fcf_record_mac_2, new_fcf_record)) &&
+ (phba->fcf.mac_addr[3] ==
+ bf_get(lpfc_fcf_record_mac_3, new_fcf_record)) &&
+ (phba->fcf.mac_addr[4] ==
+ bf_get(lpfc_fcf_record_mac_4, new_fcf_record)) &&
+ (phba->fcf.mac_addr[5] ==
+ bf_get(lpfc_fcf_record_mac_5, new_fcf_record)))
+ return 1;
+ else
+ return 0;
+}
+
+/**
+ * lpfc_copy_fcf_record - Copy fcf information to lpfc_hba.
+ * @phba: pointer to lpfc hba data structure.
+ * @new_fcf_record: pointer to fcf record.
+ *
+ * This routine copies the FCF information from the FCF
+ * record to lpfc_hba data structure.
+ **/
+static void
+lpfc_copy_fcf_record(struct lpfc_hba *phba, struct fcf_record *new_fcf_record)
+{
+ phba->fcf.fabric_name[0] =
+ bf_get(lpfc_fcf_record_fab_name_0, new_fcf_record);
+ phba->fcf.fabric_name[1] =
+ bf_get(lpfc_fcf_record_fab_name_1, new_fcf_record);
+ phba->fcf.fabric_name[2] =
+ bf_get(lpfc_fcf_record_fab_name_2, new_fcf_record);
+ phba->fcf.fabric_name[3] =
+ bf_get(lpfc_fcf_record_fab_name_3, new_fcf_record);
+ phba->fcf.fabric_name[4] =
+ bf_get(lpfc_fcf_record_fab_name_4, new_fcf_record);
+ phba->fcf.fabric_name[5] =
+ bf_get(lpfc_fcf_record_fab_name_5, new_fcf_record);
+ phba->fcf.fabric_name[6] =
+ bf_get(lpfc_fcf_record_fab_name_6, new_fcf_record);
+ phba->fcf.fabric_name[7] =
+ bf_get(lpfc_fcf_record_fab_name_7, new_fcf_record);
+ phba->fcf.mac_addr[0] =
+ bf_get(lpfc_fcf_record_mac_0, new_fcf_record);
+ phba->fcf.mac_addr[1] =
+ bf_get(lpfc_fcf_record_mac_1, new_fcf_record);
+ phba->fcf.mac_addr[2] =
+ bf_get(lpfc_fcf_record_mac_2, new_fcf_record);
+ phba->fcf.mac_addr[3] =
+ bf_get(lpfc_fcf_record_mac_3, new_fcf_record);
+ phba->fcf.mac_addr[4] =
+ bf_get(lpfc_fcf_record_mac_4, new_fcf_record);
+ phba->fcf.mac_addr[5] =
+ bf_get(lpfc_fcf_record_mac_5, new_fcf_record);
+ phba->fcf.fcf_indx = bf_get(lpfc_fcf_record_fcf_index, new_fcf_record);
+ phba->fcf.priority = new_fcf_record->fip_priority;
+}
+
+/**
+ * lpfc_register_fcf - Register the FCF with hba.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine issues a register fcfi mailbox command to register
+ * the fcf with HBA.
+ **/
+static void
+lpfc_register_fcf(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *fcf_mbxq;
+ int rc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&phba->hbalock, flags);
+
+ /* If the FCF is not availabe do nothing. */
+ if (!(phba->fcf.fcf_flag & FCF_AVAILABLE)) {
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ return;
+ }
+
+ /* The FCF is already registered, start discovery */
+ if (phba->fcf.fcf_flag & FCF_REGISTERED) {
+ phba->fcf.fcf_flag |= (FCF_DISCOVERED | FCF_IN_USE);
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ if (phba->pport->port_state != LPFC_FLOGI)
+ lpfc_initial_flogi(phba->pport);
+ return;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+
+ fcf_mbxq = mempool_alloc(phba->mbox_mem_pool,
+ GFP_KERNEL);
+ if (!fcf_mbxq)
+ return;
+
+ lpfc_reg_fcfi(phba, fcf_mbxq);
+ fcf_mbxq->vport = phba->pport;
+ fcf_mbxq->mbox_cmpl = lpfc_mbx_cmpl_reg_fcfi;
+ rc = lpfc_sli_issue_mbox(phba, fcf_mbxq, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED)
+ mempool_free(fcf_mbxq, phba->mbox_mem_pool);
+
+ return;
+}
+
+/**
+ * lpfc_match_fcf_conn_list - Check if the FCF record can be used for discovery.
+ * @phba: pointer to lpfc hba data structure.
+ * @new_fcf_record: pointer to fcf record.
+ * @boot_flag: Indicates if this record used by boot bios.
+ * @addr_mode: The address mode to be used by this FCF
+ *
+ * This routine compare the fcf record with connect list obtained from the
+ * config region to decide if this FCF can be used for SAN discovery. It returns
+ * 1 if this record can be used for SAN discovery else return zero. If this FCF
+ * record can be used for SAN discovery, the boot_flag will indicate if this FCF
+ * is used by boot bios and addr_mode will indicate the addressing mode to be
+ * used for this FCF when the function returns.
+ * If the FCF record need to be used with a particular vlan id, the vlan is
+ * set in the vlan_id on return of the function. If not VLAN tagging need to
+ * be used with the FCF vlan_id will be set to 0xFFFF;
+ **/
+static int
+lpfc_match_fcf_conn_list(struct lpfc_hba *phba,
+ struct fcf_record *new_fcf_record,
+ uint32_t *boot_flag, uint32_t *addr_mode,
+ uint16_t *vlan_id)
+{
+ struct lpfc_fcf_conn_entry *conn_entry;
+
+ if (!phba->cfg_enable_fip) {
+ *boot_flag = 0;
+ *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record);
+ if (phba->valid_vlan)
+ *vlan_id = phba->vlan_id;
+ else
+ *vlan_id = 0xFFFF;
+ return 1;
+ }
+
+ /*
+ * If there are no FCF connection table entry, driver connect to all
+ * FCFs.
+ */
+ if (list_empty(&phba->fcf_conn_rec_list)) {
+ *boot_flag = 0;
+ *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record);
+ *vlan_id = 0xFFFF;
+ return 1;
+ }
+
+ list_for_each_entry(conn_entry, &phba->fcf_conn_rec_list, list) {
+ if (!(conn_entry->conn_rec.flags & FCFCNCT_VALID))
+ continue;
+
+ if ((conn_entry->conn_rec.flags & FCFCNCT_FBNM_VALID) &&
+ !lpfc_fab_name_match(conn_entry->conn_rec.fabric_name,
+ new_fcf_record))
+ continue;
+
+ if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID) {
+ /*
+ * If the vlan bit map does not have the bit set for the
+ * vlan id to be used, then it is not a match.
+ */
+ if (!(new_fcf_record->vlan_bitmap
+ [conn_entry->conn_rec.vlan_tag / 8] &
+ (1 << (conn_entry->conn_rec.vlan_tag % 8))))
+ continue;
+ }
+
+ /*
+ * Check if the connection record specifies a required
+ * addressing mode.
+ */
+ if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ !(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)) {
+
+ /*
+ * If SPMA required but FCF not support this continue.
+ */
+ if ((conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ !(bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record) & LPFC_FCF_SPMA))
+ continue;
+
+ /*
+ * If FPMA required but FCF not support this continue.
+ */
+ if (!(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ !(bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record) & LPFC_FCF_FPMA))
+ continue;
+ }
+
+ /*
+ * This fcf record matches filtering criteria.
+ */
+ if (conn_entry->conn_rec.flags & FCFCNCT_BOOT)
+ *boot_flag = 1;
+ else
+ *boot_flag = 0;
+
+ *addr_mode = bf_get(lpfc_fcf_record_mac_addr_prov,
+ new_fcf_record);
+ /*
+ * If the user specified a required address mode, assign that
+ * address mode
+ */
+ if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ (!(conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED)))
+ *addr_mode = (conn_entry->conn_rec.flags &
+ FCFCNCT_AM_SPMA) ?
+ LPFC_FCF_SPMA : LPFC_FCF_FPMA;
+ /*
+ * If the user specified a prefered address mode, use the
+ * addr mode only if FCF support the addr_mode.
+ */
+ else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
+ (conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ (*addr_mode & LPFC_FCF_SPMA))
+ *addr_mode = LPFC_FCF_SPMA;
+ else if ((conn_entry->conn_rec.flags & FCFCNCT_AM_VALID) &&
+ (conn_entry->conn_rec.flags & FCFCNCT_AM_PREFERRED) &&
+ !(conn_entry->conn_rec.flags & FCFCNCT_AM_SPMA) &&
+ (*addr_mode & LPFC_FCF_FPMA))
+ *addr_mode = LPFC_FCF_FPMA;
+ /*
+ * If user did not specify any addressing mode, use FPMA if
+ * possible else use SPMA.
+ */
+ else if (*addr_mode & LPFC_FCF_FPMA)
+ *addr_mode = LPFC_FCF_FPMA;
+
+ if (conn_entry->conn_rec.flags & FCFCNCT_VLAN_VALID)
+ *vlan_id = conn_entry->conn_rec.vlan_tag;
+ else
+ *vlan_id = 0xFFFF;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+/**
+ * lpfc_mbx_cmpl_read_fcf_record - Completion handler for read_fcf mbox.
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to mailbox object.
+ *
+ * This function iterate through all the fcf records available in
+ * HBA and choose the optimal FCF record for discovery. After finding
+ * the FCF for discovery it register the FCF record and kick start
+ * discovery.
+ * If FCF_IN_USE flag is set in currently used FCF, the routine try to
+ * use a FCF record which match fabric name and mac address of the
+ * currently used FCF record.
+ * If the driver support only one FCF, it will try to use the FCF record
+ * used by BOOT_BIOS.
+ */
+void
+lpfc_mbx_cmpl_read_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ void *virt_addr;
+ dma_addr_t phys_addr;
+ uint8_t *bytep;
+ struct lpfc_mbx_sge sge;
+ struct lpfc_mbx_read_fcf_tbl *read_fcf;
+ uint32_t shdr_status, shdr_add_status;
+ union lpfc_sli4_cfg_shdr *shdr;
+ struct fcf_record *new_fcf_record;
+ int rc;
+ uint32_t boot_flag, addr_mode;
+ uint32_t next_fcf_index;
+ unsigned long flags;
+ uint16_t vlan_id;
+
+ /* Get the first SGE entry from the non-embedded DMA memory. This
+ * routine only uses a single SGE.
+ */
+ lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
+ phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
+ if (unlikely(!mboxq->sge_array)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+ "2524 Failed to get the non-embedded SGE "
+ "virtual address\n");
+ goto out;
+ }
+ virt_addr = mboxq->sge_array->addr[0];
+
+ shdr = (union lpfc_sli4_cfg_shdr *)virt_addr;
+ shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+ shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
+ &shdr->response);
+ /*
+ * The FCF Record was read and there is no reason for the driver
+ * to maintain the FCF record data or memory. Instead, just need
+ * to book keeping the FCFIs can be used.
+ */
+ if (shdr_status || shdr_add_status) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2521 READ_FCF_RECORD mailbox failed "
+ "with status x%x add_status x%x, mbx\n",
+ shdr_status, shdr_add_status);
+ goto out;
+ }
+ /* Interpreting the returned information of FCF records */
+ read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
+ lpfc_sli_pcimem_bcopy(read_fcf, read_fcf,
+ sizeof(struct lpfc_mbx_read_fcf_tbl));
+ next_fcf_index = bf_get(lpfc_mbx_read_fcf_tbl_nxt_vindx, read_fcf);
+
+ new_fcf_record = (struct fcf_record *)(virt_addr +
+ sizeof(struct lpfc_mbx_read_fcf_tbl));
+ lpfc_sli_pcimem_bcopy(new_fcf_record, new_fcf_record,
+ sizeof(struct fcf_record));
+ bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
+
+ rc = lpfc_match_fcf_conn_list(phba, new_fcf_record,
+ &boot_flag, &addr_mode,
+ &vlan_id);
+ /*
+ * If the fcf record does not match with connect list entries
+ * read the next entry.
+ */
+ if (!rc)
+ goto read_next_fcf;
+ /*
+ * If this is not the first FCF discovery of the HBA, use last
+ * FCF record for the discovery.
+ */
+ spin_lock_irqsave(&phba->hbalock, flags);
+ if (phba->fcf.fcf_flag & FCF_IN_USE) {
+ if (lpfc_fab_name_match(phba->fcf.fabric_name,
+ new_fcf_record) &&
+ lpfc_mac_addr_match(phba, new_fcf_record)) {
+ phba->fcf.fcf_flag |= FCF_AVAILABLE;
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto out;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto read_next_fcf;
+ }
+ if (phba->fcf.fcf_flag & FCF_AVAILABLE) {
+ /*
+ * If the current FCF record does not have boot flag
+ * set and new fcf record has boot flag set, use the
+ * new fcf record.
+ */
+ if (boot_flag && !(phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
+ /* Use this FCF record */
+ lpfc_copy_fcf_record(phba, new_fcf_record);
+ phba->fcf.addr_mode = addr_mode;
+ phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
+ if (vlan_id != 0xFFFF) {
+ phba->fcf.fcf_flag |= FCF_VALID_VLAN;
+ phba->fcf.vlan_id = vlan_id;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto read_next_fcf;
+ }
+ /*
+ * If the current FCF record has boot flag set and the
+ * new FCF record does not have boot flag, read the next
+ * FCF record.
+ */
+ if (!boot_flag && (phba->fcf.fcf_flag & FCF_BOOT_ENABLE)) {
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto read_next_fcf;
+ }
+ /*
+ * If there is a record with lower priority value for
+ * the current FCF, use that record.
+ */
+ if (lpfc_fab_name_match(phba->fcf.fabric_name, new_fcf_record)
+ && (new_fcf_record->fip_priority <
+ phba->fcf.priority)) {
+ /* Use this FCF record */
+ lpfc_copy_fcf_record(phba, new_fcf_record);
+ phba->fcf.addr_mode = addr_mode;
+ if (vlan_id != 0xFFFF) {
+ phba->fcf.fcf_flag |= FCF_VALID_VLAN;
+ phba->fcf.vlan_id = vlan_id;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto read_next_fcf;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto read_next_fcf;
+ }
+ /*
+ * This is the first available FCF record, use this
+ * record.
+ */
+ lpfc_copy_fcf_record(phba, new_fcf_record);
+ phba->fcf.addr_mode = addr_mode;
+ if (boot_flag)
+ phba->fcf.fcf_flag |= FCF_BOOT_ENABLE;
+ phba->fcf.fcf_flag |= FCF_AVAILABLE;
+ if (vlan_id != 0xFFFF) {
+ phba->fcf.fcf_flag |= FCF_VALID_VLAN;
+ phba->fcf.vlan_id = vlan_id;
+ }
+ spin_unlock_irqrestore(&phba->hbalock, flags);
+ goto read_next_fcf;
+
+read_next_fcf:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ if (next_fcf_index == LPFC_FCOE_FCF_NEXT_NONE || next_fcf_index == 0)
+ lpfc_register_fcf(phba);
+ else
+ lpfc_sli4_read_fcf_record(phba, next_fcf_index);
+ return;
+
+out:
+ lpfc_sli4_mbox_cmd_free(phba, mboxq);
+ lpfc_register_fcf(phba);
+
+ return;
+}
+
+/**
+ * lpfc_start_fdiscs - send fdiscs for each vports on this port.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This function loops through the list of vports on the @phba and issues an
+ * FDISC if possible.
+ */
+void
+lpfc_start_fdiscs(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i;
+
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports != NULL) {
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
+ continue;
+ /* There are no vpi for this vport */
+ if (vports[i]->vpi > phba->max_vpi) {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_FAILED);
+ continue;
+ }
+ if (phba->fc_topology == TOPOLOGY_LOOP) {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_LINKDOWN);
+ continue;
+ }
+ if (phba->link_flag & LS_NPIV_FAB_SUPPORTED)
+ lpfc_initial_fdisc(vports[i]);
+ else {
+ lpfc_vport_set_state(vports[i],
+ FC_VPORT_NO_FABRIC_SUPP);
+ lpfc_printf_vlog(vports[i], KERN_ERR,
+ LOG_ELS,
+ "0259 No NPIV "
+ "Fabric support\n");
+ }
+ }
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+}
+
+void
+lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_dmabuf *dmabuf = mboxq->context1;
+ struct lpfc_vport *vport = mboxq->vport;
+
+ if (mboxq->u.mb.mbxStatus) {
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
+ "2018 REG_VFI mbxStatus error x%x "
+ "HBA state x%x\n",
+ mboxq->u.mb.mbxStatus, vport->port_state);
+ if (phba->fc_topology == TOPOLOGY_LOOP) {
+ /* FLOGI failed, use loop map to make discovery list */
+ lpfc_disc_list_loopmap(vport);
+ /* Start discovery */
+ lpfc_disc_start(vport);
+ goto fail_free_mem;
+ }
+ lpfc_vport_set_state(vport, FC_VPORT_FAILED);
+ goto fail_free_mem;
+ }
+ /* Mark the vport has registered with its VFI */
+ vport->vfi_state |= LPFC_VFI_REGISTERED;
+
+ if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
+ lpfc_start_fdiscs(phba);
+ lpfc_do_scr_ns_plogi(phba, vport);
+ }
+
+fail_free_mem:
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
+ kfree(dmabuf);
+ return;
+}
+
+static void
lpfc_mbx_cmpl_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) pmb->context1;
struct lpfc_vport *vport = pmb->vport;
@@ -1037,13 +1625,13 @@
lpfc_mbx_process_link_up(struct lpfc_hba *phba, READ_LA_VAR *la)
{
struct lpfc_vport *vport = phba->pport;
- LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox;
+ LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
int i;
struct lpfc_dmabuf *mp;
int rc;
+ struct fcf_record *fcf_record;
sparam_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
- cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
spin_lock_irq(&phba->hbalock);
switch (la->UlnkSpeed) {
@@ -1140,22 +1728,66 @@
lpfc_mbuf_free(phba, mp->virt, mp->phys);
kfree(mp);
mempool_free(sparam_mbox, phba->mbox_mem_pool);
- if (cfglink_mbox)
- mempool_free(cfglink_mbox, phba->mbox_mem_pool);
goto out;
}
}
- if (cfglink_mbox) {
+ if (!(phba->hba_flag & HBA_FCOE_SUPPORT)) {
+ cfglink_mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!cfglink_mbox)
+ goto out;
vport->port_state = LPFC_LOCAL_CFG_LINK;
lpfc_config_link(phba, cfglink_mbox);
cfglink_mbox->vport = vport;
cfglink_mbox->mbox_cmpl = lpfc_mbx_cmpl_local_config_link;
rc = lpfc_sli_issue_mbox(phba, cfglink_mbox, MBX_NOWAIT);
- if (rc != MBX_NOT_FINISHED)
- return;
- mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+ if (rc == MBX_NOT_FINISHED) {
+ mempool_free(cfglink_mbox, phba->mbox_mem_pool);
+ goto out;
+ }
+ } else {
+ /*
+ * Add the driver's default FCF record at FCF index 0 now. This
+ * is phase 1 implementation that support FCF index 0 and driver
+ * defaults.
+ */
+ if (phba->cfg_enable_fip == 0) {
+ fcf_record = kzalloc(sizeof(struct fcf_record),
+ GFP_KERNEL);
+ if (unlikely(!fcf_record)) {
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "2554 Could not allocate memmory for "
+ "fcf record\n");
+ rc = -ENODEV;
+ goto out;
+ }
+
+ lpfc_sli4_build_dflt_fcf_record(phba, fcf_record,
+ LPFC_FCOE_FCF_DEF_INDEX);
+ rc = lpfc_sli4_add_fcf_record(phba, fcf_record);
+ if (unlikely(rc)) {
+ lpfc_printf_log(phba, KERN_ERR,
+ LOG_MBOX | LOG_SLI,
+ "2013 Could not manually add FCF "
+ "record 0, status %d\n", rc);
+ rc = -ENODEV;
+ kfree(fcf_record);
+ goto out;
+ }
+ kfree(fcf_record);
+ }
+ /*
+ * The driver is expected to do FIP/FCF. Call the port
+ * and get the FCF Table.
+ */
+ rc = lpfc_sli4_read_fcf_record(phba,
+ LPFC_FCOE_FCF_GET_FIRST);
+ if (rc)
+ goto out;
}
+
+ return;
out:
lpfc_vport_set_state(vport, FC_VPORT_FAILED);
lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
@@ -1186,6 +1818,7 @@
{
lpfc_linkdown(phba);
lpfc_enable_la(phba);
+ lpfc_unregister_unused_fcf(phba);
/* turn on Link Attention interrupts - no CLEAR_LA needed */
}
@@ -3330,3 +3963,395 @@
return 1;
return 0;
}
+
+/**
+ * lpfc_fcf_inuse - Check if FCF can be unregistered.
+ * @phba: Pointer to hba context object.
+ *
+ * This function iterate through all FC nodes associated
+ * will all vports to check if there is any node with
+ * fc_rports associated with it. If there is an fc_rport
+ * associated with the node, then the node is either in
+ * discovered state or its devloss_timer is pending.
+ */
+static int
+lpfc_fcf_inuse(struct lpfc_hba *phba)
+{
+ struct lpfc_vport **vports;
+ int i, ret = 0;
+ struct lpfc_nodelist *ndlp;
+ struct Scsi_Host *shost;
+
+ vports = lpfc_create_vport_work_array(phba);
+
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ list_for_each_entry(ndlp, &vports[i]->fc_nodes, nlp_listp) {
+ if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport &&
+ (ndlp->rport->roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ ret = 1;
+ spin_unlock_irq(shost->host_lock);
+ goto out;
+ }
+ }
+ spin_unlock_irq(shost->host_lock);
+ }
+out:
+ lpfc_destroy_vport_work_array(phba, vports);
+ return ret;
+}
+
+/**
+ * lpfc_unregister_vfi_cmpl - Completion handler for unreg vfi.
+ * @phba: Pointer to hba context object.
+ * @mboxq: Pointer to mailbox object.
+ *
+ * This function frees memory associated with the mailbox command.
+ */
+static void
+lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+
+ if (mboxq->u.mb.mbxStatus) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2555 UNREG_VFI mbxStatus error x%x "
+ "HBA state x%x\n",
+ mboxq->u.mb.mbxStatus, vport->port_state);
+ }
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_unregister_fcfi_cmpl - Completion handler for unreg fcfi.
+ * @phba: Pointer to hba context object.
+ * @mboxq: Pointer to mailbox object.
+ *
+ * This function frees memory associated with the mailbox command.
+ */
+static void
+lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ struct lpfc_vport *vport = mboxq->vport;
+
+ if (mboxq->u.mb.mbxStatus) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2550 UNREG_FCFI mbxStatus error x%x "
+ "HBA state x%x\n",
+ mboxq->u.mb.mbxStatus, vport->port_state);
+ }
+ mempool_free(mboxq, phba->mbox_mem_pool);
+ return;
+}
+
+/**
+ * lpfc_unregister_unused_fcf - Unregister FCF if all devices are disconnected.
+ * @phba: Pointer to hba context object.
+ *
+ * This function check if there are any connected remote port for the FCF and
+ * if all the devices are disconnected, this function unregister FCFI.
+ * This function also tries to use another FCF for discovery.
+ */
+void
+lpfc_unregister_unused_fcf(struct lpfc_hba *phba)
+{
+ LPFC_MBOXQ_t *mbox;
+ int rc;
+ struct lpfc_vport **vports;
+ int i;
+
+ spin_lock_irq(&phba->hbalock);
+ /*
+ * If HBA is not running in FIP mode or
+ * If HBA does not support FCoE or
+ * If FCF is not registered.
+ * do nothing.
+ */
+ if (!(phba->hba_flag & HBA_FCOE_SUPPORT) ||
+ !(phba->fcf.fcf_flag & FCF_REGISTERED) ||
+ (phba->cfg_enable_fip == 0)) {
+ spin_unlock_irq(&phba->hbalock);
+ return;
+ }
+ spin_unlock_irq(&phba->hbalock);
+
+ if (lpfc_fcf_inuse(phba))
+ return;
+
+
+ /* Unregister VPIs */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports &&
+ (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED))
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ lpfc_mbx_unreg_vpi(vports[i]);
+ vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
+ vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED;
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+
+ /* Unregister VFI */
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2556 UNREG_VFI mbox allocation failed"
+ "HBA state x%x\n",
+ phba->pport->port_state);
+ return;
+ }
+
+ lpfc_unreg_vfi(mbox, phba->pport->vfi);
+ mbox->vport = phba->pport;
+ mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
+
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2557 UNREG_VFI issue mbox failed rc x%x "
+ "HBA state x%x\n",
+ rc, phba->pport->port_state);
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return;
+ }
+
+ /* Unregister FCF */
+ mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+ if (!mbox) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2551 UNREG_FCFI mbox allocation failed"
+ "HBA state x%x\n",
+ phba->pport->port_state);
+ return;
+ }
+
+ lpfc_unreg_fcfi(mbox, phba->fcf.fcfi);
+ mbox->vport = phba->pport;
+ mbox->mbox_cmpl = lpfc_unregister_fcfi_cmpl;
+ rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+
+ if (rc == MBX_NOT_FINISHED) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2552 UNREG_FCFI issue mbox failed rc x%x "
+ "HBA state x%x\n",
+ rc, phba->pport->port_state);
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return;
+ }
+
+ spin_lock_irq(&phba->hbalock);
+ phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_REGISTERED |
+ FCF_DISCOVERED | FCF_BOOT_ENABLE | FCF_IN_USE |
+ FCF_VALID_VLAN);
+ spin_unlock_irq(&phba->hbalock);
+
+ /*
+ * If driver is not unloading, check if there is any other
+ * FCF record that can be used for discovery.
+ */
+ if ((phba->pport->load_flag & FC_UNLOADING) ||
+ (phba->link_state < LPFC_LINK_UP))
+ return;
+
+ rc = lpfc_sli4_read_fcf_record(phba, LPFC_FCOE_FCF_GET_FIRST);
+
+ if (rc)
+ lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+ "2553 lpfc_unregister_unused_fcf failed to read FCF"
+ " record HBA state x%x\n",
+ phba->pport->port_state);
+}
+
+/**
+ * lpfc_read_fcf_conn_tbl - Create driver FCF connection table.
+ * @phba: Pointer to hba context object.
+ * @buff: Buffer containing the FCF connection table as in the config
+ * region.
+ * This function create driver data structure for the FCF connection
+ * record table read from config region 23.
+ */
+static void
+lpfc_read_fcf_conn_tbl(struct lpfc_hba *phba,
+ uint8_t *buff)
+{
+ struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
+ struct lpfc_fcf_conn_hdr *conn_hdr;
+ struct lpfc_fcf_conn_rec *conn_rec;
+ uint32_t record_count;
+ int i;
+
+ /* Free the current connect table */
+ list_for_each_entry_safe(conn_entry, next_conn_entry,
+ &phba->fcf_conn_rec_list, list)
+ kfree(conn_entry);
+
+ conn_hdr = (struct lpfc_fcf_conn_hdr *) buff;
+ record_count = conn_hdr->length * sizeof(uint32_t)/
+ sizeof(struct lpfc_fcf_conn_rec);
+
+ conn_rec = (struct lpfc_fcf_conn_rec *)
+ (buff + sizeof(struct lpfc_fcf_conn_hdr));
+
+ for (i = 0; i < record_count; i++) {
+ if (!(conn_rec[i].flags & FCFCNCT_VALID))
+ continue;
+ conn_entry = kzalloc(sizeof(struct lpfc_fcf_conn_entry),
+ GFP_KERNEL);
+ if (!conn_entry) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2566 Failed to allocate connection"
+ " table entry\n");
+ return;
+ }
+
+ memcpy(&conn_entry->conn_rec, &conn_rec[i],
+ sizeof(struct lpfc_fcf_conn_rec));
+ conn_entry->conn_rec.vlan_tag =
+ le16_to_cpu(conn_entry->conn_rec.vlan_tag) & 0xFFF;
+ conn_entry->conn_rec.flags =
+ le16_to_cpu(conn_entry->conn_rec.flags);
+ list_add_tail(&conn_entry->list,
+ &phba->fcf_conn_rec_list);
+ }
+}
+
+/**
+ * lpfc_read_fcoe_param - Read FCoe parameters from conf region..
+ * @phba: Pointer to hba context object.
+ * @buff: Buffer containing the FCoE parameter data structure.
+ *
+ * This function update driver data structure with config
+ * parameters read from config region 23.
+ */
+static void
+lpfc_read_fcoe_param(struct lpfc_hba *phba,
+ uint8_t *buff)
+{
+ struct lpfc_fip_param_hdr *fcoe_param_hdr;
+ struct lpfc_fcoe_params *fcoe_param;
+
+ fcoe_param_hdr = (struct lpfc_fip_param_hdr *)
+ buff;
+ fcoe_param = (struct lpfc_fcoe_params *)
+ buff + sizeof(struct lpfc_fip_param_hdr);
+
+ if ((fcoe_param_hdr->parm_version != FIPP_VERSION) ||
+ (fcoe_param_hdr->length != FCOE_PARAM_LENGTH))
+ return;
+
+ if (bf_get(lpfc_fip_param_hdr_fipp_mode, fcoe_param_hdr) ==
+ FIPP_MODE_ON)
+ phba->cfg_enable_fip = 1;
+
+ if (bf_get(lpfc_fip_param_hdr_fipp_mode, fcoe_param_hdr) ==
+ FIPP_MODE_OFF)
+ phba->cfg_enable_fip = 0;
+
+ if (fcoe_param_hdr->parm_flags & FIPP_VLAN_VALID) {
+ phba->valid_vlan = 1;
+ phba->vlan_id = le16_to_cpu(fcoe_param->vlan_tag) &
+ 0xFFF;
+ }
+
+ phba->fc_map[0] = fcoe_param->fc_map[0];
+ phba->fc_map[1] = fcoe_param->fc_map[1];
+ phba->fc_map[2] = fcoe_param->fc_map[2];
+ return;
+}
+
+/**
+ * lpfc_get_rec_conf23 - Get a record type in config region data.
+ * @buff: Buffer containing config region 23 data.
+ * @size: Size of the data buffer.
+ * @rec_type: Record type to be searched.
+ *
+ * This function searches config region data to find the begining
+ * of the record specified by record_type. If record found, this
+ * function return pointer to the record else return NULL.
+ */
+static uint8_t *
+lpfc_get_rec_conf23(uint8_t *buff, uint32_t size, uint8_t rec_type)
+{
+ uint32_t offset = 0, rec_length;
+
+ if ((buff[0] == LPFC_REGION23_LAST_REC) ||
+ (size < sizeof(uint32_t)))
+ return NULL;
+
+ rec_length = buff[offset + 1];
+
+ /*
+ * One TLV record has one word header and number of data words
+ * specified in the rec_length field of the record header.
+ */
+ while ((offset + rec_length * sizeof(uint32_t) + sizeof(uint32_t))
+ <= size) {
+ if (buff[offset] == rec_type)
+ return &buff[offset];
+
+ if (buff[offset] == LPFC_REGION23_LAST_REC)
+ return NULL;
+
+ offset += rec_length * sizeof(uint32_t) + sizeof(uint32_t);
+ rec_length = buff[offset + 1];
+ }
+ return NULL;
+}
+
+/**
+ * lpfc_parse_fcoe_conf - Parse FCoE config data read from config region 23.
+ * @phba: Pointer to lpfc_hba data structure.
+ * @buff: Buffer containing config region 23 data.
+ * @size: Size of the data buffer.
+ *
+ * This fuction parse the FCoE config parameters in config region 23 and
+ * populate driver data structure with the parameters.
+ */
+void
+lpfc_parse_fcoe_conf(struct lpfc_hba *phba,
+ uint8_t *buff,
+ uint32_t size)
+{
+ uint32_t offset = 0, rec_length;
+ uint8_t *rec_ptr;
+
+ /*
+ * If data size is less than 2 words signature and version cannot be
+ * verified.
+ */
+ if (size < 2*sizeof(uint32_t))
+ return;
+
+ /* Check the region signature first */
+ if (memcmp(buff, LPFC_REGION23_SIGNATURE, 4)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2567 Config region 23 has bad signature\n");
+ return;
+ }
+
+ offset += 4;
+
+ /* Check the data structure version */
+ if (buff[offset] != LPFC_REGION23_VERSION) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "2568 Config region 23 has bad version\n");
+ return;
+ }
+ offset += 4;
+
+ rec_length = buff[offset + 1];
+
+ /* Read FCoE param record */
+ rec_ptr = lpfc_get_rec_conf23(&buff[offset],
+ size - offset, FCOE_PARAM_TYPE);
+ if (rec_ptr)
+ lpfc_read_fcoe_param(phba, rec_ptr);
+
+ /* Read FCF connection table */
+ rec_ptr = lpfc_get_rec_conf23(&buff[offset],
+ size - offset, FCOE_CONN_TBL_TYPE);
+ if (rec_ptr)
+ lpfc_read_fcf_conn_tbl(phba, rec_ptr);
+
+}