[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3
[deliverable/linux.git] / drivers / scsi / lpfc / lpfc_attr.c
index b8adff8cea6adee5c7ec1d431cbd644290cf37a7..5cb7924fe3d7d82a0eca71f11b43dbf180cf8473 100644 (file)
@@ -39,6 +39,7 @@
 #include "lpfc_version.h"
 #include "lpfc_compat.h"
 #include "lpfc_crtn.h"
+#include "lpfc_vport.h"
 
 #define LPFC_DEF_DEVLOSS_TMO 30
 #define LPFC_MIN_DEVLOSS_TMO 1
@@ -139,7 +140,7 @@ lpfc_fwrev_show(struct class_device *cdev, char *buf)
        char fwrev[32];
 
        lpfc_decode_firmware_rev(phba, fwrev, 1);
-       return snprintf(buf, PAGE_SIZE, "%s\n",fwrev);
+       return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
 }
 
 static ssize_t
@@ -178,10 +179,11 @@ lpfc_state_show(struct class_device *cdev, char *buf)
        case LPFC_INIT_MBX_CMDS:
        case LPFC_LINK_DOWN:
        case LPFC_HBA_ERROR:
-               len += snprintf(buf + len, PAGE_SIZE-len, "Link Down");
+               len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n");
                break;
        case LPFC_LINK_UP:
        case LPFC_CLEAR_LA:
+       case LPFC_HBA_READY:
                len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
 
                switch (vport->port_state) {
@@ -190,8 +192,9 @@ lpfc_state_show(struct class_device *cdev, char *buf)
                        break;
                case LPFC_LOCAL_CFG_LINK:
                        len += snprintf(buf + len, PAGE_SIZE-len,
-                                       "configuring\n");
+                                       "Configuring Link\n");
                        break;
+               case LPFC_FDISC:
                case LPFC_FLOGI:
                case LPFC_FABRIC_CFG_LINK:
                case LPFC_NS_REG:
@@ -205,7 +208,11 @@ lpfc_state_show(struct class_device *cdev, char *buf)
                        len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
                        break;
 
-               case LPFC_STATE_UNKNOWN:
+               case LPFC_VPORT_FAILED:
+                       len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
+                       break;
+
+               case LPFC_VPORT_UNKNOWN:
                        len += snprintf(buf + len, PAGE_SIZE - len,
                                        "Unknown\n");
                        break;
@@ -432,6 +439,151 @@ lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
                return -EIO;
 }
 
+static ssize_t
+lpfc_max_vpi_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+
+       return snprintf(buf, PAGE_SIZE, "%d\n", phba->max_vpi);
+}
+
+static ssize_t
+lpfc_used_vpi_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+
+       /* Don't count the physical port */
+       return snprintf(buf, PAGE_SIZE, "%d\n", phba->vpi_cnt-1);
+}
+
+int
+lpfc_get_hba_info(struct lpfc_hba *phba, uint32_t *mxri,
+       uint32_t *axri, uint32_t *mrpi, uint32_t *arpi)
+{
+       struct lpfc_sli   *psli = &phba->sli;
+       LPFC_MBOXQ_t *pmboxq;
+       MAILBOX_t *pmb;
+       int rc = 0;
+
+       /*
+        * prevent udev from issuing mailbox commands until the port is
+        * configured.
+        */
+       if (phba->link_state < LPFC_LINK_DOWN ||
+           !phba->mbox_mem_pool ||
+           (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
+               return 0;
+
+       if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
+               return 0;
+
+       pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+       if (!pmboxq)
+               return 0;
+       memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
+
+       pmb = &pmboxq->mb;
+       pmb->mbxCommand = MBX_READ_CONFIG;
+       pmb->mbxOwner = OWN_HOST;
+       pmboxq->context1 = NULL;
+
+       if ((phba->pport->fc_flag & FC_OFFLINE_MODE) ||
+               (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
+               rc = MBX_NOT_FINISHED;
+       else
+               rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
+
+       if (rc != MBX_SUCCESS) {
+               if (rc == MBX_TIMEOUT)
+                       pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+               else
+                       mempool_free(pmboxq, phba->mbox_mem_pool);
+               return 0;
+       }
+
+       if (mrpi)
+               *mrpi = pmb->un.varRdConfig.max_rpi;
+       if (arpi)
+               *arpi = pmb->un.varRdConfig.avail_rpi;
+       if (mxri)
+               *mxri = pmb->un.varRdConfig.max_xri;
+       if (axri)
+               *axri = pmb->un.varRdConfig.avail_xri;
+
+       mempool_free(pmboxq, phba->mbox_mem_pool);
+       return 1;
+}
+
+static ssize_t
+lpfc_max_rpi_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+       uint32_t cnt;
+
+       if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL))
+               return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
+       return snprintf(buf, PAGE_SIZE, "Unknown\n");
+}
+
+static ssize_t
+lpfc_used_rpi_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+       uint32_t cnt, acnt;
+
+       if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt))
+               return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
+       return snprintf(buf, PAGE_SIZE, "Unknown\n");
+}
+
+static ssize_t
+lpfc_max_xri_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+       uint32_t cnt;
+
+       if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL))
+               return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
+       return snprintf(buf, PAGE_SIZE, "Unknown\n");
+}
+
+static ssize_t
+lpfc_used_xri_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+       uint32_t cnt, acnt;
+
+       if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL))
+               return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
+       return snprintf(buf, PAGE_SIZE, "Unknown\n");
+}
+
+static ssize_t
+lpfc_npiv_info_show(struct class_device *cdev, char *buf)
+{
+       struct Scsi_Host  *shost = class_to_shost(cdev);
+       struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+       struct lpfc_hba   *phba = vport->phba;
+
+       if (!(phba->max_vpi))
+               return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
+       if (vport->port_type == LPFC_PHYSICAL_PORT)
+               return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
+       return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
+}
+
 static ssize_t
 lpfc_poll_show(struct class_device *cdev, char *buf)
 {
@@ -640,6 +792,13 @@ static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show,
 static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
                         lpfc_board_mode_show, lpfc_board_mode_store);
 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
+static CLASS_DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
+static CLASS_DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
+static CLASS_DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
+static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
+static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
+static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
+static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
 
 
 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
@@ -829,6 +988,17 @@ MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
                         lpfc_poll_show, lpfc_poll_store);
 
+int  lpfc_sli_mode = 0;
+module_param(lpfc_sli_mode, int, 0);
+MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
+                " 0 - auto (SLI-3 if supported),"
+                " 2 - select SLI-2 even on SLI-3 capable HBAs,"
+                " 3 - select SLI-3");
+
+int  lpfc_npiv_enable = 0;
+module_param(lpfc_npiv_enable, int, 0);
+MODULE_PARM_DESC(lpfc_npiv_enable, "Enable NPIV functionality");
+
 /*
 # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
 # until the timer expires. Value range is [0,255]. Default value is 30.
@@ -984,6 +1154,33 @@ LPFC_ATTR_R(lun_queue_depth, 30, 1, 128,
 LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
            "Max number of FCP commands we can queue to a lpfc HBA");
 
+/*
+# peer_port_login:  This parameter allows/prevents logins
+# between peer ports hosted on the same physical port.
+# When this parameter is set 0 peer ports of same physical port
+# are not allowed to login to each other.
+# When this parameter is set 1 peer ports of same physical port
+# are allowed to login to each other.
+# Default value of this parameter is 0.
+*/
+LPFC_ATTR_R(peer_port_login, 0, 0, 1,
+           "Allow peer ports on the same physical port to login to each "
+           "other.");
+
+/*
+# vport_restrict_login:  This parameter allows/prevents logins
+# between Virtual Ports and remote initiators.
+# When this parameter is not set (0) Virtual Ports will accept PLOGIs from
+# other initiators and will attempt to PLOGI all remote ports.
+# When this parameter is set (1) Virtual Ports will reject PLOGIs from
+# remote ports and will not attempt to PLOGI to other initiators.
+# This parameter does not restrict to the physical port.
+# This parameter does not restrict logins to Fabric resident remote ports.
+# Default value of this parameter is 1.
+*/
+LPFC_ATTR_RW(vport_restrict_login, 1, 0, 1,
+           "Restrict virtual ports login to remote initiators.");
+
 /*
 # Some disk devices have a "select ID" or "select Target" capability.
 # From a protocol standpoint "select ID" usually means select the
@@ -1127,6 +1324,7 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible");
 
 
+
 struct class_device_attribute *lpfc_hba_attrs[] = {
        &class_device_attr_info,
        &class_device_attr_serialnum,
@@ -1143,6 +1341,8 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
        &class_device_attr_lpfc_log_verbose,
        &class_device_attr_lpfc_lun_queue_depth,
        &class_device_attr_lpfc_hba_queue_depth,
+       &class_device_attr_lpfc_peer_port_login,
+       &class_device_attr_lpfc_vport_restrict_login,
        &class_device_attr_lpfc_nodev_tmo,
        &class_device_attr_lpfc_devloss_tmo,
        &class_device_attr_lpfc_fcp_class,
@@ -1161,6 +1361,13 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
        &class_device_attr_nport_evt_cnt,
        &class_device_attr_management_version,
        &class_device_attr_board_mode,
+       &class_device_attr_max_vpi,
+       &class_device_attr_used_vpi,
+       &class_device_attr_max_rpi,
+       &class_device_attr_used_rpi,
+       &class_device_attr_max_xri,
+       &class_device_attr_used_xri,
+       &class_device_attr_npiv_info,
        &class_device_attr_issue_reset,
        &class_device_attr_lpfc_poll,
        &class_device_attr_lpfc_poll_tmo,
@@ -1299,7 +1506,7 @@ sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count)
        } else {
                if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
                    phba->sysfs_mbox.offset != off           ||
-                   phba->sysfs_mbox.mbox   == NULL ) {
+                   phba->sysfs_mbox.mbox   == NULL) {
                        sysfs_mbox_idle(phba);
                        spin_unlock_irq(&phba->hbalock);
                        return -EAGAIN;
@@ -1406,6 +1613,8 @@ sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count)
                        return -EPERM;
                }
 
+               phba->sysfs_mbox.mbox->vport = vport;
+
                if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
                        sysfs_mbox_idle(phba);
                        spin_unlock_irq(&phba->hbalock);
@@ -1480,12 +1689,12 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
        int error;
 
        error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
-                                                       &sysfs_ctlreg_attr);
+                                     &sysfs_ctlreg_attr);
        if (error)
                goto out;
 
        error = sysfs_create_bin_file(&shost->shost_classdev.kobj,
-                                                       &sysfs_mbox_attr);
+                                     &sysfs_mbox_attr);
        if (error)
                goto out_remove_ctlreg_attr;
 
@@ -1527,7 +1736,9 @@ lpfc_get_host_port_type(struct Scsi_Host *shost)
 
        spin_lock_irq(shost->host_lock);
 
-       if (lpfc_is_link_up(phba)) {
+       if (vport->port_type == LPFC_NPIV_PORT) {
+               fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
+       } else if (lpfc_is_link_up(phba)) {
                if (phba->fc_topology == TOPOLOGY_LOOP) {
                        if (vport->fc_flag & FC_PUBLIC_LOOP)
                                fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
@@ -1563,6 +1774,7 @@ lpfc_get_host_port_state(struct Scsi_Host *shost)
                        break;
                case LPFC_LINK_UP:
                case LPFC_CLEAR_LA:
+               case LPFC_HBA_READY:
                        /* Links up, beyond this port_type reports state */
                        fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
                        break;
@@ -1644,13 +1856,14 @@ lpfc_get_stats(struct Scsi_Host *shost)
        unsigned long seconds;
        int rc = 0;
 
-                               /* prevent udev from issuing mailbox commands
-                                * until the port is configured.
-                                */
+       /*
+        * prevent udev from issuing mailbox commands until the port is
+        * configured.
+        */
        if (phba->link_state < LPFC_LINK_DOWN ||
            !phba->mbox_mem_pool ||
            (phba->sli.sli_flag & LPFC_SLI2_ACTIVE) == 0)
-                       return NULL;
+               return NULL;
 
        if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
                return NULL;
@@ -1664,6 +1877,7 @@ lpfc_get_stats(struct Scsi_Host *shost)
        pmb->mbxCommand = MBX_READ_STATUS;
        pmb->mbxOwner = OWN_HOST;
        pmboxq->context1 = NULL;
+       pmboxq->vport = vport;
 
        if ((vport->fc_flag & FC_OFFLINE_MODE) ||
                (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
@@ -1690,6 +1904,7 @@ lpfc_get_stats(struct Scsi_Host *shost)
        pmb->mbxCommand = MBX_READ_LNK_STAT;
        pmb->mbxOwner = OWN_HOST;
        pmboxq->context1 = NULL;
+       pmboxq->vport = vport;
 
        if ((vport->fc_flag & FC_OFFLINE_MODE) ||
            (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
@@ -1701,7 +1916,7 @@ lpfc_get_stats(struct Scsi_Host *shost)
                if (rc == MBX_TIMEOUT)
                        pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
                else
-                       mempool_free( pmboxq, phba->mbox_mem_pool);
+                       mempool_free(pmboxq, phba->mbox_mem_pool);
                return NULL;
        }
 
@@ -1769,6 +1984,7 @@ lpfc_reset_stats(struct Scsi_Host *shost)
        pmb->mbxOwner = OWN_HOST;
        pmb->un.varWords[0] = 0x1; /* reset request */
        pmboxq->context1 = NULL;
+       pmboxq->vport = vport;
 
        if ((vport->fc_flag & FC_OFFLINE_MODE) ||
                (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
@@ -1788,6 +2004,7 @@ lpfc_reset_stats(struct Scsi_Host *shost)
        pmb->mbxCommand = MBX_READ_LNK_STAT;
        pmb->mbxOwner = OWN_HOST;
        pmboxq->context1 = NULL;
+       pmboxq->vport = vport;
 
        if ((vport->fc_flag & FC_OFFLINE_MODE) ||
            (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
@@ -1950,6 +2167,69 @@ struct fc_function_template lpfc_transport_functions = {
        .issue_fc_host_lip = lpfc_issue_lip,
        .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
        .terminate_rport_io = lpfc_terminate_rport_io,
+
+       .vport_create = lpfc_vport_create,
+       .vport_delete = lpfc_vport_delete,
+       .dd_fcvport_size = sizeof(struct lpfc_vport *),
+};
+
+struct fc_function_template lpfc_vport_transport_functions = {
+       /* fixed attributes the driver supports */
+       .show_host_node_name = 1,
+       .show_host_port_name = 1,
+       .show_host_supported_classes = 1,
+       .show_host_supported_fc4s = 1,
+       .show_host_supported_speeds = 1,
+       .show_host_maxframe_size = 1,
+
+       /* dynamic attributes the driver supports */
+       .get_host_port_id = lpfc_get_host_port_id,
+       .show_host_port_id = 1,
+
+       .get_host_port_type = lpfc_get_host_port_type,
+       .show_host_port_type = 1,
+
+       .get_host_port_state = lpfc_get_host_port_state,
+       .show_host_port_state = 1,
+
+       /* active_fc4s is shown but doesn't change (thus no get function) */
+       .show_host_active_fc4s = 1,
+
+       .get_host_speed = lpfc_get_host_speed,
+       .show_host_speed = 1,
+
+       .get_host_fabric_name = lpfc_get_host_fabric_name,
+       .show_host_fabric_name = 1,
+
+       /*
+        * The LPFC driver treats linkdown handling as target loss events
+        * so there are no sysfs handlers for link_down_tmo.
+        */
+
+       .get_fc_host_stats = lpfc_get_stats,
+       .reset_fc_host_stats = lpfc_reset_stats,
+
+       .dd_fcrport_size = sizeof(struct lpfc_rport_data),
+       .show_rport_maxframe_size = 1,
+       .show_rport_supported_classes = 1,
+
+       .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
+       .show_rport_dev_loss_tmo = 1,
+
+       .get_starget_port_id  = lpfc_get_starget_port_id,
+       .show_starget_port_id = 1,
+
+       .get_starget_node_name = lpfc_get_starget_node_name,
+       .show_starget_node_name = 1,
+
+       .get_starget_port_name = lpfc_get_starget_port_name,
+       .show_starget_port_name = 1,
+
+       .issue_fc_host_lip = lpfc_issue_lip,
+       .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
+       .terminate_rport_io = lpfc_terminate_rport_io,
+
+       .vport_disable = lpfc_vport_disable,
 };
 
 void
@@ -1972,6 +2252,8 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
        lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
        lpfc_max_luns_init(phba, lpfc_max_luns);
        lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
+       lpfc_peer_port_login_init(phba, lpfc_peer_port_login);
+       lpfc_vport_restrict_login_init(phba, lpfc_vport_restrict_login);
        lpfc_use_msi_init(phba, lpfc_use_msi);
        lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
        lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
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