[SCSI] iscsi_transport: Added Ping support
Added ping support for iscsi adapter, application can use this
interface for diagnostic network connection.
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 3aac991..7ff9678 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -60,6 +60,7 @@
ISCSI_UEVENT_PATH_UPDATE = UEVENT_BASE + 20,
ISCSI_UEVENT_SET_IFACE_PARAMS = UEVENT_BASE + 21,
+ ISCSI_UEVENT_PING = UEVENT_BASE + 22,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
@@ -73,6 +74,7 @@
ISCSI_KEVENT_IF_DOWN = KEVENT_BASE + 8,
ISCSI_KEVENT_CONN_LOGIN_STATE = KEVENT_BASE + 9,
ISCSI_KEVENT_HOST_EVENT = KEVENT_BASE + 10,
+ ISCSI_KEVENT_PING_COMP = KEVENT_BASE + 11,
};
enum iscsi_tgt_dscvr {
@@ -186,6 +188,14 @@
uint32_t host_no;
uint32_t count;
} set_iface_params;
+ struct msg_iscsi_ping {
+ uint32_t host_no;
+ uint32_t iface_num;
+ uint32_t iface_type;
+ uint32_t payload_size;
+ uint32_t pid; /* unique ping id associated
+ with each ping request */
+ } iscsi_ping;
} u;
union {
/* messages k -> u */
@@ -235,6 +245,13 @@
uint32_t data_size;
enum iscsi_host_event_code code;
} host_event;
+ struct msg_ping_comp {
+ uint32_t host_no;
+ uint32_t status;
+ uint32_t pid; /* unique ping id associated
+ with each ping request */
+ uint32_t data_size;
+ } ping_comp;
} r;
} __attribute__ ((aligned (sizeof(uint64_t))));
