struct scsi_transport_template;
-
/*
* FC Port definitions - Following FC HBAAPI guidelines
*
/* Macro for use in defining Virtual Port attributes */
-#define FC_VPORT_ATTR(_name,_mode,_show,_store) \
-struct class_device_attribute class_device_attr_vport_##_name = \
+#define FC_VPORT_ATTR(_name,_mode,_show,_store) \
+struct device_attribute dev_attr_vport_##_name = \
__ATTR(_name,_mode,_show,_store)
+/*
+ * fc_vport_identifiers: This set of data contains all elements
+ * to uniquely identify and instantiate a FC virtual port.
+ *
+ * Notes:
+ * symbolic_name: The driver is to append the symbolic_name string data
+ * to the symbolic_node_name data that it generates by default.
+ * the resulting combination should then be registered with the switch.
+ * It is expected that things like Xen may stuff a VM title into
+ * this field.
+ */
+#define FC_VPORT_SYMBOLIC_NAMELEN 64
+struct fc_vport_identifiers {
+ u64 node_name;
+ u64 port_name;
+ u32 roles;
+ bool disable;
+ enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */
+ char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
+};
/*
* FC Virtual Port Attributes
* ports has a unique presense on the SAN, and may be instantiated via
* NPIV, Virtual Fabrics, or via additional ALPAs. As the vport is a
* unique presense, each vport has it's own view of the fabric,
- * authentication priviledge, and priorities.
+ * authentication privilege, and priorities.
*
* A virtual port may support 1 or more FC4 roles. Typically it is a
* FCP Initiator. It could be a FCP Target, or exist sole for an IP over FC
* managed by the transport w/o driver interaction.
*/
-#define FC_VPORT_SYMBOLIC_NAMELEN 64
struct fc_vport {
/* Fixed Attributes */
#define dev_to_vport(d) \
container_of(d, struct fc_vport, dev)
-#define transport_class_to_vport(classdev) \
- dev_to_vport(classdev->dev)
+#define transport_class_to_vport(dev) \
+ dev_to_vport(dev->parent)
#define vport_to_shost(v) \
(v->shost)
#define vport_to_shost_channel(v) \
/* Macro for use in defining Remote Port attributes */
#define FC_RPORT_ATTR(_name,_mode,_show,_store) \
-struct class_device_attribute class_device_attr_rport_##_name = \
+struct device_attribute dev_attr_rport_##_name = \
__ATTR(_name,_mode,_show,_store)
struct delayed_work fail_io_work;
struct work_struct stgt_delete_work;
struct work_struct rport_delete_work;
+ struct request_queue *rqst_q; /* bsg support */
} __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 FC_RPORT_FAST_FAIL_TIMEDOUT 0x04
+#define FC_RPORT_DEVLOSS_CALLBK_DONE 0x08
#define dev_to_rport(d) \
container_of(d, struct fc_rport, dev)
-#define transport_class_to_rport(classdev) \
- dev_to_rport(classdev->dev)
+#define transport_class_to_rport(dev) \
+ dev_to_rport(dev->parent)
#define rport_to_shost(r) \
dev_to_shost(r->dev.parent)
u16 npiv_vports_inuse;
/* work queues for rport state manipulation */
- char work_q_name[KOBJ_NAME_LEN];
+ char work_q_name[20];
struct workqueue_struct *work_q;
- char devloss_work_q_name[KOBJ_NAME_LEN];
+ char devloss_work_q_name[20];
struct workqueue_struct *devloss_work_q;
+
+ /* bsg support */
+ struct request_queue *rqst_q;
};
#define shost_to_fc_host(x) \
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
+struct fc_bsg_buffer {
+ unsigned int payload_len;
+ int sg_cnt;
+ struct scatterlist *sg_list;
+};
+
+/* Values for fc_bsg_job->state_flags (bitflags) */
+#define FC_RQST_STATE_INPROGRESS 0
+#define FC_RQST_STATE_DONE 1
+
+struct fc_bsg_job {
+ struct Scsi_Host *shost;
+ struct fc_rport *rport;
+ struct device *dev;
+ struct request *req;
+ spinlock_t job_lock;
+ unsigned int state_flags;
+ unsigned int ref_cnt;
+ void (*job_done)(struct fc_bsg_job *);
+
+ struct fc_bsg_request *request;
+ struct fc_bsg_reply *reply;
+ unsigned int request_len;
+ unsigned int reply_len;
+ /*
+ * On entry : reply_len indicates the buffer size allocated for
+ * the reply.
+ *
+ * Upon completion : the message handler must set reply_len
+ * to indicates the size of the reply to be returned to the
+ * caller.
+ */
+
+ /* DMA payloads for the request/response */
+ struct fc_bsg_buffer request_payload;
+ struct fc_bsg_buffer reply_payload;
+
+ void *dd_data; /* Used for driver-specific storage */
+};
+
+
/* The functions by which the transport class and the driver communicate */
struct fc_function_template {
void (*get_rport_dev_loss_tmo)(struct fc_rport *);
int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int);
int (* it_nexus_response)(struct Scsi_Host *, u64, int);
+ /* bsg support */
+ int (*bsg_request)(struct fc_bsg_job *);
+ int (*bsg_timeout)(struct fc_bsg_job *);
+
/* allocation lengths for host-specific data */
u32 dd_fcrport_size;
u32 dd_fcvport_size;
+ u32 dd_bsg_size;
/*
* The driver sets these to tell the transport class it
result = DID_NO_CONNECT << 16;
break;
case FC_PORTSTATE_BLOCKED:
- result = DID_IMM_RETRY << 16;
+ if (rport->flags & FC_RPORT_FAST_FAIL_TIMEDOUT)
+ result = DID_TRANSPORT_FAILFAST << 16;
+ else
+ result = DID_IMM_RETRY << 16;
break;
default:
result = DID_NO_CONNECT << 16;
vport->vport_state = new_state;
}
-
struct scsi_transport_template *fc_attach_transport(
struct fc_function_template *);
void fc_release_transport(struct scsi_transport_template *);
* be sure to read the Vendor Type and ID formatting requirements
* specified in scsi_netlink.h
*/
+struct fc_vport *fc_vport_create(struct Scsi_Host *shost, int channel,
+ struct fc_vport_identifiers *);
int fc_vport_terminate(struct fc_vport *vport);
+void fc_block_scsi_eh(struct scsi_cmnd *cmnd);
#endif /* SCSI_TRANSPORT_FC_H */
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