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| author | Manish Rangankar <manish.rangankar@qlogic.com> | 2011-07-25 13:48:52 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-08-27 08:36:23 -0600 |
| commit | 17fa575eec7254fb089f858cae135d64cd015440 (patch) | |
| tree | 42678af6a81a429bf38264d0879e6476abe7a71c /include/scsi/iscsi_if.h | |
| parent | a355943ca847ca3a264d468e408217562234d019 (diff) | |
| download | lwn-17fa575eec7254fb089f858cae135d64cd015440.tar.gz lwn-17fa575eec7254fb089f858cae135d64cd015440.zip | |
[SCSI] scsi_transport_iscsi: Add conn login, kernel to user, event to support offload session login.
Offload drivers like qla4xxx will offload the sending of the login/logout
pdus still, so this patch adds iscsi_conn_login_event which is
used by these types of drivers to notify userspace that the connection
has changed state.
It also adds a iscsi_is_session_online helper so the lld
can query the sessions state field.
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi/iscsi_if.h')
| -rw-r--r-- | include/scsi/iscsi_if.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index d3f256a232f8..629ca42dfe75 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -71,6 +71,7 @@ enum iscsi_uevent_e { ISCSI_KEVENT_PATH_REQ = KEVENT_BASE + 7, ISCSI_KEVENT_IF_DOWN = KEVENT_BASE + 8, + ISCSI_KEVENT_CONN_LOGIN_STATE = KEVENT_BASE + 9, }; enum iscsi_tgt_dscvr { @@ -198,6 +199,11 @@ struct iscsi_uevent { uint32_t cid; uint64_t recv_handle; } recv_req; + struct msg_conn_login { + uint32_t sid; + uint32_t cid; + uint32_t state; /* enum iscsi_conn_state */ + } conn_login; struct msg_conn_error { uint32_t sid; uint32_t cid; @@ -309,6 +315,16 @@ enum iscsi_net_param { ISCSI_NET_PARAM_IFACE_NAME = 17, }; +enum iscsi_conn_state { + ISCSI_CONN_STATE_FREE, + ISCSI_CONN_STATE_XPT_WAIT, + ISCSI_CONN_STATE_IN_LOGIN, + ISCSI_CONN_STATE_LOGGED_IN, + ISCSI_CONN_STATE_IN_LOGOUT, + ISCSI_CONN_STATE_LOGOUT_REQUESTED, + ISCSI_CONN_STATE_CLEANUP_WAIT, +}; + /* * Common error codes */ @@ -421,6 +437,7 @@ enum iscsi_host_param { #define CAP_DIGEST_OFFLOAD 0x1000 /* offload hdr and data digests */ #define CAP_PADDING_OFFLOAD 0x2000 /* offload padding insertion, removal, and verification */ +#define CAP_LOGIN_OFFLOAD 0x4000 /* offload session login */ /* * These flags describes reason of stop_conn() call |