From 3e5c28ad0391389959ccae81c938c7533efb3490 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 21 May 2008 15:54:06 -0500 Subject: [SCSI] libiscsi: merge iscsi_mgmt_task and iscsi_cmd_task There is no need to have the mgmt and cmd tasks separate structs. It used to save a lot of memory when we overprealocated memory for tasks, but the next patches will set up the driver so in the future they can use a mempool or some other common scsi command allocator and common tagging. Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- include/scsi/libiscsi.h | 29 +++++++---------------------- 1 file changed, 7 insertions(+), 22 deletions(-) (limited to 'include/scsi/libiscsi.h') diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 9be6a70faff..d1c36759b35 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -85,18 +85,6 @@ enum { ISCSI_DIGEST_SIZE = sizeof(__u32), }; -struct iscsi_mgmt_task { - /* - * Becuae LLDs allocate their hdr differently, this is a pointer to - * that storage. It must be setup at session creation time. - */ - struct iscsi_hdr *hdr; - char *data; /* mgmt payload */ - unsigned data_count; /* counts data to be sent */ - uint32_t itt; /* this ITT */ - void *dd_data; /* driver/transport data */ - struct list_head running; -}; enum { ISCSI_TASK_COMPLETED, @@ -121,6 +109,7 @@ struct iscsi_cmd_task { /* offset in unsolicited stream (bytes); */ unsigned unsol_offset; unsigned data_count; /* remaining Data-Out */ + char *data; /* mgmt payload */ struct scsi_cmnd *sc; /* associated SCSI cmd*/ struct iscsi_conn *conn; /* used connection */ @@ -162,7 +151,7 @@ struct iscsi_conn { unsigned long last_ping; int ping_timeout; int recv_timeout; - struct iscsi_mgmt_task *ping_mtask; + struct iscsi_cmd_task *ping_ctask; /* iSCSI connection-wide sequencing */ uint32_t exp_statsn; @@ -178,9 +167,8 @@ struct iscsi_conn { * should always fit in this buffer */ char *data; - struct iscsi_mgmt_task *login_mtask; /* mtask used for login/text */ - struct iscsi_mgmt_task *mtask; /* xmit mtask in progress */ - struct iscsi_cmd_task *ctask; /* xmit ctask in progress */ + struct iscsi_cmd_task *login_ctask; /* mtask used for login/text */ + struct iscsi_cmd_task *ctask; /* xmit task in progress */ /* xmit */ struct list_head mgmtqueue; /* mgmt (control) xmit queue */ @@ -295,12 +283,10 @@ struct iscsi_session { int state; /* session state */ int age; /* counts session re-opens */ + int scsi_cmds_max; /* max scsi commands */ int cmds_max; /* size of cmds array */ struct iscsi_cmd_task **cmds; /* Original Cmds arr */ struct iscsi_pool cmdpool; /* PDU's pool */ - int mgmtpool_max; /* size of mgmt array */ - struct iscsi_mgmt_task **mgmt_cmds; /* Original mgmt arr */ - struct iscsi_pool mgmtpool; /* Mgmt PDU's pool */ }; struct iscsi_host { @@ -345,7 +331,7 @@ extern void iscsi_host_free(struct Scsi_Host *shost); */ extern struct iscsi_cls_session * iscsi_session_setup(struct iscsi_transport *, struct Scsi_Host *shost, - uint16_t, int, int, uint32_t); + uint16_t, int, uint32_t); extern void iscsi_session_teardown(struct iscsi_cls_session *); extern void iscsi_session_recovery_timedout(struct iscsi_cls_session *); extern int iscsi_set_param(struct iscsi_cls_conn *cls_conn, @@ -388,8 +374,7 @@ extern int iscsi_complete_pdu(struct iscsi_conn *, struct iscsi_hdr *, extern int iscsi_verify_itt(struct iscsi_conn *, itt_t); extern struct iscsi_cmd_task *iscsi_itt_to_ctask(struct iscsi_conn *, itt_t); extern void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask); -extern void iscsi_free_mgmt_task(struct iscsi_conn *conn, - struct iscsi_mgmt_task *mtask); +extern void iscsi_put_ctask(struct iscsi_cmd_task *ctask); /* * generic helpers -- cgit v1.2.3