[SCSI] qla2xxx: Add NPIV-Config Table support.

To instatiate pre-configured vport entities defined within an
HBA's flash memory.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 880e711..83c8192 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2239,6 +2239,7 @@ typedef struct scsi_qla_host {
 #define FCPORT_UPDATE_NEEDED   27
 #define VP_DPC_NEEDED          28      /* wake up for VP dpc handling */
 #define UNLOADING              29
+#define NPIV_CONFIG_NEEDED     30
 
        uint32_t        device_flags;
 #define DFLG_LOCAL_DEVICES             BIT_0
@@ -2559,6 +2560,7 @@ typedef struct scsi_qla_host {
        uint32_t        flt_region_fw;
        uint32_t        flt_region_vpd_nvram;
        uint32_t        flt_region_hw_event;
+       uint32_t        flt_region_npiv_conf;
 
        /* Needed for BEACON */
        uint16_t        beacon_blink_led;

diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h
index 2ec986b..d1d1420 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_fw.h
+++ b/drivers/scsi/qla2xxx/qla_fw.h
@@ -791,6 +791,8 @@ struct device_reg_24xx {
 
 #define FA_FLASH_DESCR_ADDR_24 0x11000
 #define FA_FLASH_LAYOUT_ADDR_24        0x11400
+#define FA_NPIV_CONF0_ADDR_24  0x16000
+#define FA_NPIV_CONF1_ADDR_24  0x17000
 
 #define FA_FW_AREA_ADDR                0x40000
 #define FA_VPD_NVRAM_ADDR      0x48000
@@ -801,6 +803,9 @@ struct device_reg_24xx {
 #define FA_HW_EVENT1_ADDR      0x54400
 #define FA_HW_EVENT_SIZE       0x200
 #define FA_HW_EVENT_ENTRY_SIZE 4
+#define FA_NPIV_CONF0_ADDR     0x5C000
+#define FA_NPIV_CONF1_ADDR     0x5D000
+
 /*
  * Flash Error Log Event Codes.
  */
@@ -1230,6 +1235,8 @@ struct qla_flt_header {
 #define FLT_REG_FLT            0x1c
 #define FLT_REG_HW_EVENT_0     0x1d
 #define FLT_REG_HW_EVENT_1     0x1f
+#define FLT_REG_NPIV_CONF_0    0x29
+#define FLT_REG_NPIV_CONF_1    0x2a
 
 struct qla_flt_region {
        uint32_t code;
@@ -1238,6 +1245,25 @@ struct qla_flt_region {
        uint32_t end;
 };
 
+/* Flash NPIV Configuration Table ********************************************/
+
+struct qla_npiv_header {
+       uint8_t sig[2];
+       uint16_t version;
+       uint16_t entries;
+       uint16_t unused[4];
+       uint16_t checksum;
+};
+
+struct qla_npiv_entry {
+       uint16_t flags;
+       uint16_t vf_id;
+       uint16_t qos;
+       uint16_t unused1;
+       uint8_t port_name[WWN_SIZE];
+       uint8_t node_name[WWN_SIZE];
+};
+
 /* 84XX Support **************************************************************/
 
 #define MBA_ISP84XX_ALERT      0x800f  /* Alert Notification. */

diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index dbd9f93..753dbe6 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -316,6 +316,8 @@ extern int qla2xxx_hw_event_log(scsi_qla_host_t *, uint16_t , uint16_t,
 extern int qla2xxx_get_flash_info(scsi_qla_host_t *);
 extern int qla2xxx_get_vpd_field(scsi_qla_host_t *, char *, char *, size_t);
 
+extern void qla2xxx_flash_npiv_conf(scsi_qla_host_t *);
+
 /*
  * Global Function Prototypes in qla_dbg.c source file.
  */

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index c1ffc30..3433441 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1517,6 +1517,7 @@ qla2xxx_scan_start(struct Scsi_Host *shost)
        set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
        set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
        set_bit(RSCN_UPDATE, &ha->dpc_flags);
+       set_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
 }
 
 static int
@@ -2431,6 +2432,12 @@ qla2x00_do_dpc(void *data)
                            ha->host_no));
                }
 
+               if (test_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags) &&
+                   atomic_read(&ha->loop_state) == LOOP_READY) {
+                       clear_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
+                       qla2xxx_flash_npiv_conf(ha);
+               }
+
                if (!ha->interrupts_on)
                        ha->isp_ops->enable_intrs(ha);
 

diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c
index 6de1e3b..e2432ef 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_sup.c
+++ b/drivers/scsi/qla2xxx/qla_sup.c
@@ -686,6 +686,14 @@ qla2xxx_get_flt_info(scsi_qla_host_t *ha, uint32_t flt_addr)
                        if (PCI_FUNC(ha->pdev->devfn))
                                ha->flt_region_hw_event = start;
                        break;
+               case FLT_REG_NPIV_CONF_0:
+                       if (!PCI_FUNC(ha->pdev->devfn))
+                               ha->flt_region_npiv_conf = start;
+                       break;
+               case FLT_REG_NPIV_CONF_1:
+                       if (PCI_FUNC(ha->pdev->devfn))
+                               ha->flt_region_npiv_conf = start;
+                       break;
                }
        }
        goto done;
@@ -700,11 +708,15 @@ no_flash_data:
            FA_FLASH_DESCR_ADDR;
        ha->flt_region_hw_event = !PCI_FUNC(ha->pdev->devfn) ?
            FA_HW_EVENT0_ADDR: FA_HW_EVENT1_ADDR;
+       ha->flt_region_npiv_conf = !PCI_FUNC(ha->pdev->devfn) ?
+           (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF0_ADDR_24: FA_NPIV_CONF0_ADDR):
+           (IS_QLA24XX_TYPE(ha) ? FA_NPIV_CONF1_ADDR_24: FA_NPIV_CONF1_ADDR);
 done:
        DEBUG2(qla_printk(KERN_DEBUG, ha, "FLT[%s]: boot=0x%x fw=0x%x "
-           "vpd_nvram=0x%x fdt=0x%x flt=0x%x hwe=0x%x.\n", loc,
+           "vpd_nvram=0x%x fdt=0x%x flt=0x%x hwe=0x%x npiv=0x%x.\n", loc,
            ha->flt_region_boot, ha->flt_region_fw, ha->flt_region_vpd_nvram,
-           ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_hw_event));
+           ha->flt_region_fdt, ha->flt_region_flt, ha->flt_region_hw_event,
+           ha->flt_region_npiv_conf));
 }
 
 static void
@@ -814,6 +826,88 @@ qla2xxx_get_flash_info(scsi_qla_host_t *ha)
        return QLA_SUCCESS;
 }
 
+void
+qla2xxx_flash_npiv_conf(scsi_qla_host_t *ha)
+{
+#define NPIV_CONFIG_SIZE       (16*1024)
+       void *data;
+       uint16_t *wptr;
+       uint16_t cnt, chksum;
+       struct qla_npiv_header hdr;
+       struct qla_npiv_entry *entry;
+
+       if (!IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha))
+               return;
+
+       ha->isp_ops->read_optrom(ha, (uint8_t *)&hdr,
+           ha->flt_region_npiv_conf << 2, sizeof(struct qla_npiv_header));
+       if (hdr.version == __constant_cpu_to_le16(0xffff))
+               return;
+       if (hdr.version != __constant_cpu_to_le16(1)) {
+               DEBUG2(qla_printk(KERN_INFO, ha, "Unsupported NPIV-Config "
+                   "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
+                   le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
+                   le16_to_cpu(hdr.checksum)));
+               return;
+       }
+
+       data = kmalloc(NPIV_CONFIG_SIZE, GFP_KERNEL);
+       if (!data) {
+               DEBUG2(qla_printk(KERN_INFO, ha, "NPIV-Config: Unable to "
+                   "allocate memory.\n"));
+               return;
+       }
+
+       ha->isp_ops->read_optrom(ha, (uint8_t *)data,
+           ha->flt_region_npiv_conf << 2, NPIV_CONFIG_SIZE);
+
+       cnt = (sizeof(struct qla_npiv_header) + le16_to_cpu(hdr.entries) *
+           sizeof(struct qla_npiv_entry)) >> 1;
+       for (wptr = data, chksum = 0; cnt; cnt--)
+               chksum += le16_to_cpu(*wptr++);
+       if (chksum) {
+               DEBUG2(qla_printk(KERN_INFO, ha, "Inconsistent NPIV-Config "
+                   "detected: version=0x%x entries=0x%x checksum=0x%x.\n",
+                   le16_to_cpu(hdr.version), le16_to_cpu(hdr.entries),
+                   chksum));
+               goto done;
+       }
+
+       entry = data + sizeof(struct qla_npiv_header);
+       cnt = le16_to_cpu(hdr.entries);
+       for ( ; cnt; cnt--, entry++) {
+               uint16_t flags;
+               struct fc_vport_identifiers vid;
+               struct fc_vport *vport;
+
+               flags = le16_to_cpu(entry->flags);
+               if (flags == 0xffff)
+                       continue;
+               if ((flags & BIT_0) == 0)
+                       continue;
+
+               memset(&vid, 0, sizeof(vid));
+               vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
+               vid.vport_type = FC_PORTTYPE_NPIV;
+               vid.disable = false;
+               vid.port_name = wwn_to_u64(entry->port_name);
+               vid.node_name = wwn_to_u64(entry->node_name);
+
+               DEBUG2(qla_printk(KERN_DEBUG, ha, "NPIV[%02x]: wwpn=%llx "
+                   "wwnn=%llx vf_id=0x%x qos=0x%x.\n", cnt, vid.port_name,
+                   vid.node_name, le16_to_cpu(entry->vf_id),
+                   le16_to_cpu(entry->qos)));
+
+               vport = fc_vport_create(ha->host, 0, &vid);
+               if (!vport)
+                       qla_printk(KERN_INFO, ha, "NPIV-Config: Failed to "
+                           "create vport [%02x]: wwpn=%llx wwnn=%llx.\n", cnt,
+                           vid.port_name, vid.node_name);
+       }
+done:
+       kfree(data);
+}
+
 static void
 qla24xx_unprotect_flash(scsi_qla_host_t *ha)
 {