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[SCSI] iscsi: add transport end point callbacks

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add transport end point callbacks so iscsi drivers that cannot connect
from userspace, like iscsi tcp, using sockets do not have to
implement their own socket infrastructure.

Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Or Gerlitz
2006-05-02 19:46:36 -05:00
committed by James Bottomley
parent 169e1a2a8a
commit 264faaaa12
4 changed files with 65 additions and 5 deletions
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include/scsi/iscsi_if.h
+18 -1
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@@ -43,6 +43,10 @@ enum iscsi_uevent_e {
ISCSI_UEVENT_GET_STATS = UEVENT_BASE + 10,
ISCSI_UEVENT_GET_PARAM = UEVENT_BASE + 11,
ISCSI_UEVENT_TRANSPORT_EP_CONNECT = UEVENT_BASE + 12,
ISCSI_UEVENT_TRANSPORT_EP_POLL = UEVENT_BASE + 13,
ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT = UEVENT_BASE + 14,
/* up events */
ISCSI_KEVENT_RECV_PDU = KEVENT_BASE + 1,
ISCSI_KEVENT_CONN_ERROR = KEVENT_BASE + 2,
@@ -69,7 +73,7 @@ struct iscsi_uevent {
struct msg_bind_conn {
uint32_t sid;
uint32_t cid;
uint32_t transport_fd;
uint64_t transport_eph;
uint32_t is_leading;
} b_conn;
struct msg_destroy_conn {
@@ -102,6 +106,16 @@ struct iscsi_uevent {
uint32_t sid;
uint32_t cid;
} get_stats;
struct msg_transport_connect {
uint32_t non_blocking;
} ep_connect;
struct msg_transport_poll {
uint64_t ep_handle;
uint32_t timeout_ms;
} ep_poll;
struct msg_transport_disconnect {
uint64_t ep_handle;
} ep_disconnect;
} u;
union {
/* messages k -> u */
@@ -124,6 +138,9 @@ struct iscsi_uevent {
uint32_t cid;
uint32_t error; /* enum iscsi_err */
} connerror;
struct msg_transport_connect_ret {
uint64_t handle;
} ep_connect_ret;
} r;
} __attribute__ ((aligned (sizeof(uint64_t))));