[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3
NPIV support is added to the driver. It utilizes the interfaces of
the fc transport for the creation and deletion of vports. Within the
driver, a new Scsi_Host is created for each NPIV instance, and is
paired with a new instance of a FC port. This allows N FC Port
elements to share a single Adapter.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index b8adff8..5cb7924f 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -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 @@
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 @@
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 @@
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 @@
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;
@@ -433,6 +440,151 @@
}
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)
{
struct Scsi_Host *shost = class_to_shost(cdev);
@@ -640,6 +792,13 @@
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 @@
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.
@@ -985,6 +1155,33 @@
"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
# Fibre channel "ALPA". In the FC-AL Profile there is an "informative
@@ -1127,6 +1324,7 @@
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 @@
&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 @@
&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 @@
} 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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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 @@
.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_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);