Merge branch 'misc' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc...

[pandora-kernel.git] / include / scsi / scsi_transport_fc.h

diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index fac547d..5626225 100644 (file)
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -79,6 +79,7 @@ enum fc_port_state {
        FC_PORTSTATE_LINKDOWN,
        FC_PORTSTATE_ERROR,
        FC_PORTSTATE_LOOPBACK,
+       FC_PORTSTATE_DELETED,
 };
 
 
@@ -201,12 +202,19 @@ struct fc_rport { /* aka fc_starget_attrs */
        /* internal data */
        unsigned int channel;
        u32 number;
+       u8 flags;
        struct list_head peers;
        struct device dev;
        struct work_struct dev_loss_work;
        struct work_struct scan_work;
+       struct work_struct stgt_delete_work;
+       struct work_struct rport_delete_work;
 } __attribute__((aligned(sizeof(unsigned long))));
 
+/* bit field values for struct fc_rport "flags" field: */
+#define FC_RPORT_DEVLOSS_PENDING       0x01
+#define FC_RPORT_SCAN_PENDING          0x02
+
 #define        dev_to_rport(d)                         \
        container_of(d, struct fc_rport, dev)
 #define transport_class_to_rport(classdev)     \
@@ -302,6 +310,7 @@ struct fc_host_attrs {
        /* Fixed Attributes */
        u64 node_name;
        u64 port_name;
+       u64 permanent_port_name;
        u32 supported_classes;
        u8  supported_fc4s[FC_FC4_LIST_SIZE];
        char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
@@ -325,12 +334,23 @@ struct fc_host_attrs {
        struct list_head rport_bindings;
        u32 next_rport_number;
        u32 next_target_id;
+
+       /* work queues for rport state manipulation */
+       char work_q_name[KOBJ_NAME_LEN];
+       struct workqueue_struct *work_q;
+       char devloss_work_q_name[KOBJ_NAME_LEN];
+       struct workqueue_struct *devloss_work_q;
 };
 
+#define shost_to_fc_host(x) \
+       ((struct fc_host_attrs *)(x)->shost_data)
+
 #define fc_host_node_name(x) \
        (((struct fc_host_attrs *)(x)->shost_data)->node_name)
 #define fc_host_port_name(x)   \
        (((struct fc_host_attrs *)(x)->shost_data)->port_name)
+#define fc_host_permanent_port_name(x) \
+       (((struct fc_host_attrs *)(x)->shost_data)->permanent_port_name)
 #define fc_host_supported_classes(x)   \
        (((struct fc_host_attrs *)(x)->shost_data)->supported_classes)
 #define fc_host_supported_fc4s(x)      \
@@ -365,6 +385,14 @@ struct fc_host_attrs {
        (((struct fc_host_attrs *)(x)->shost_data)->next_rport_number)
 #define fc_host_next_target_id(x) \
        (((struct fc_host_attrs *)(x)->shost_data)->next_target_id)
+#define fc_host_work_q_name(x) \
+       (((struct fc_host_attrs *)(x)->shost_data)->work_q_name)
+#define fc_host_work_q(x) \
+       (((struct fc_host_attrs *)(x)->shost_data)->work_q)
+#define fc_host_devloss_work_q_name(x) \
+       (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
+#define fc_host_devloss_work_q(x) \
+       (((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
 
 
 /* The functions by which the transport class and the driver communicate */
@@ -415,6 +443,7 @@ struct fc_function_template {
        /* host fixed attributes */
        unsigned long   show_host_node_name:1;
        unsigned long   show_host_port_name:1;
+       unsigned long   show_host_permanent_port_name:1;
        unsigned long   show_host_supported_classes:1;
        unsigned long   show_host_supported_fc4s:1;
        unsigned long   show_host_symbolic_name:1;
@@ -446,10 +475,15 @@ fc_remote_port_chkready(struct fc_rport *rport)
 
        switch (rport->port_state) {
        case FC_PORTSTATE_ONLINE:
-               result = 0;
+               if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
+                       result = 0;
+               else if (rport->flags & FC_RPORT_DEVLOSS_PENDING)
+                       result = DID_IMM_RETRY << 16;
+               else
+                       result = DID_NO_CONNECT << 16;
                break;
        case FC_PORTSTATE_BLOCKED:
-               result = DID_BUS_BUSY << 16;
+               result = DID_IMM_RETRY << 16;
                break;
        default:
                result = DID_NO_CONNECT << 16;