[SCSI] qla2xxx: add support for NPIV
Following patch adds support for NPIV (N-Port ID Virtualization) to the
qla2xxx.
- supported within switched-fabric topologies only.
- supports up to 63 virtual ports on each physical port.
Signed-off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 8081b63..b79c4dfc 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -6,8 +6,11 @@
*/
#include "qla_def.h"
+#include <linux/kthread.h>
#include <linux/vmalloc.h>
+int qla24xx_vport_disable(struct fc_vport *, bool);
+
/* SYSFS attributes --------------------------------------------------------- */
static ssize_t
@@ -959,6 +962,122 @@
fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
}
+static int
+qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
+{
+ int ret = 0;
+ scsi_qla_host_t *ha = (scsi_qla_host_t *) fc_vport->shost->hostdata;
+ scsi_qla_host_t *vha;
+
+ ret = qla24xx_vport_create_req_sanity_check(fc_vport);
+ if (ret) {
+ DEBUG15(printk("qla24xx_vport_create_req_sanity_check failed, "
+ "status %x\n", ret));
+ return (ret);
+ }
+
+ vha = qla24xx_create_vhost(fc_vport);
+ if (vha == NULL) {
+ DEBUG15(printk ("qla24xx_create_vhost failed, vha = %p\n",
+ vha));
+ return FC_VPORT_FAILED;
+ }
+ if (disable) {
+ atomic_set(&vha->vp_state, VP_OFFLINE);
+ fc_vport_set_state(fc_vport, FC_VPORT_DISABLED);
+ } else
+ atomic_set(&vha->vp_state, VP_FAILED);
+
+ /* ready to create vport */
+ qla_printk(KERN_INFO, vha, "VP entry id %d assigned.\n", vha->vp_idx);
+
+ /* initialized vport states */
+ atomic_set(&vha->loop_state, LOOP_DOWN);
+ vha->vp_err_state= VP_ERR_PORTDWN;
+ vha->vp_prev_err_state= VP_ERR_UNKWN;
+ /* Check if physical ha port is Up */
+ if (atomic_read(&ha->loop_state) == LOOP_DOWN ||
+ atomic_read(&ha->loop_state) == LOOP_DEAD) {
+ /* Don't retry or attempt login of this virtual port */
+ DEBUG15(printk ("scsi(%ld): pport loop_state is not UP.\n",
+ vha->host_no));
+ atomic_set(&vha->loop_state, LOOP_DEAD);
+ if (!disable)
+ fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN);
+ }
+
+ if (scsi_add_host(vha->host, &fc_vport->dev)) {
+ DEBUG15(printk("scsi(%ld): scsi_add_host failure for VP[%d].\n",
+ vha->host_no, vha->vp_idx));
+ goto vport_create_failed_2;
+ }
+
+ /* initialize attributes */
+ fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
+ fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
+ fc_host_supported_classes(vha->host) =
+ fc_host_supported_classes(ha->host);
+ fc_host_supported_speeds(vha->host) =
+ fc_host_supported_speeds(ha->host);
+
+ qla24xx_vport_disable(fc_vport, disable);
+
+ return 0;
+vport_create_failed_2:
+ qla24xx_disable_vp(vha);
+ qla24xx_deallocate_vp_id(vha);
+ kfree(vha->port_name);
+ kfree(vha->node_name);
+ scsi_host_put(vha->host);
+ return FC_VPORT_FAILED;
+}
+
+int
+qla24xx_vport_delete(struct fc_vport *fc_vport)
+{
+ scsi_qla_host_t *ha = (scsi_qla_host_t *) fc_vport->shost->hostdata;
+ scsi_qla_host_t *vha = fc_vport->dd_data;
+
+ qla24xx_disable_vp(vha);
+ qla24xx_deallocate_vp_id(vha);
+
+ down(&ha->vport_sem);
+ ha->cur_vport_count--;
+ clear_bit(vha->vp_idx, (unsigned long *)ha->vp_idx_map);
+ up(&ha->vport_sem);
+
+ kfree(vha->node_name);
+ kfree(vha->port_name);
+
+ if (vha->timer_active) {
+ qla2x00_vp_stop_timer(vha);
+ DEBUG15(printk ("scsi(%ld): timer for the vport[%d] = %p "
+ "has stopped\n",
+ vha->host_no, vha->vp_idx, vha));
+ }
+
+ fc_remove_host(vha->host);
+
+ scsi_remove_host(vha->host);
+
+ scsi_host_put(vha->host);
+
+ return 0;
+}
+
+int
+qla24xx_vport_disable(struct fc_vport *fc_vport, bool disable)
+{
+ scsi_qla_host_t *vha = fc_vport->dd_data;
+
+ if (disable)
+ qla24xx_disable_vp(vha);
+ else
+ qla24xx_enable_vp(vha);
+
+ return 0;
+}
+
struct fc_function_template qla2xxx_transport_functions = {
.show_host_node_name = 1,
@@ -996,6 +1115,49 @@
.issue_fc_host_lip = qla2x00_issue_lip,
.get_fc_host_stats = qla2x00_get_fc_host_stats,
+
+ .vport_create = qla24xx_vport_create,
+ .vport_disable = qla24xx_vport_disable,
+ .vport_delete = qla24xx_vport_delete,
+};
+
+struct fc_function_template qla2xxx_transport_vport_functions = {
+
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+
+ .get_host_port_id = qla2x00_get_host_port_id,
+ .show_host_port_id = 1,
+ .get_host_speed = qla2x00_get_host_speed,
+ .show_host_speed = 1,
+ .get_host_port_type = qla2x00_get_host_port_type,
+ .show_host_port_type = 1,
+ .get_host_symbolic_name = qla2x00_get_host_symbolic_name,
+ .show_host_symbolic_name = 1,
+ .set_host_system_hostname = qla2x00_set_host_system_hostname,
+ .show_host_system_hostname = 1,
+ .get_host_fabric_name = qla2x00_get_host_fabric_name,
+ .show_host_fabric_name = 1,
+ .get_host_port_state = qla2x00_get_host_port_state,
+ .show_host_port_state = 1,
+
+ .dd_fcrport_size = sizeof(struct fc_port *),
+ .show_rport_supported_classes = 1,
+
+ .get_starget_node_name = qla2x00_get_starget_node_name,
+ .show_starget_node_name = 1,
+ .get_starget_port_name = qla2x00_get_starget_port_name,
+ .show_starget_port_name = 1,
+ .get_starget_port_id = qla2x00_get_starget_port_id,
+ .show_starget_port_id = 1,
+
+ .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
+ .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+
+ .issue_fc_host_lip = qla2x00_issue_lip,
+ .get_fc_host_stats = qla2x00_get_fc_host_stats,
};
void
@@ -1004,4 +1166,6 @@
fc_host_node_name(ha->host) = wwn_to_u64(ha->node_name);
fc_host_port_name(ha->host) = wwn_to_u64(ha->port_name);
fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
+ fc_host_max_npiv_vports(ha->host) = MAX_NUM_VPORT_FABRIC;
+ fc_host_npiv_vports_inuse(ha->host) = ha->cur_vport_count;
}