aboutsummaryrefslogtreecommitdiffstats
path: root/include/scsi/libiscsi.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-15 19:51:54 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-15 19:51:54 -0400
commitbc06cffdec85d487c77109dffcd2f285bdc502d3 (patch)
treeadc6e6398243da87e66c56102840597a329183a0 /include/scsi/libiscsi.h
parentd3502d7f25b22cfc9762bf1781faa9db1bb3be2e (diff)
parent9413d7b8aa777dd1fc7db9563ce5e80d769fe7b5 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (166 commits) [SCSI] ibmvscsi: convert to use the data buffer accessors [SCSI] dc395x: convert to use the data buffer accessors [SCSI] ncr53c8xx: convert to use the data buffer accessors [SCSI] sym53c8xx: convert to use the data buffer accessors [SCSI] ppa: coding police and printk levels [SCSI] aic7xxx_old: remove redundant GFP_ATOMIC from kmalloc [SCSI] i2o: remove redundant GFP_ATOMIC from kmalloc from device.c [SCSI] remove the dead CYBERSTORMIII_SCSI option [SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA [SCSI] Clean up scsi_add_lun a bit [SCSI] 53c700: Remove printk, which triggers because of low scsi clock on SNI RMs [SCSI] sni_53c710: Cleanup [SCSI] qla4xxx: Fix underrun/overrun conditions [SCSI] megaraid_mbox: use mutex instead of semaphore [SCSI] aacraid: add 51245, 51645 and 52245 adapters to documentation. [SCSI] qla2xxx: update version to 8.02.00-k1. [SCSI] qla2xxx: add support for NPIV [SCSI] stex: use resid for xfer len information [SCSI] Add Brownie 1200U3P to blacklist [SCSI] scsi.c: convert to use the data buffer accessors ...
Diffstat (limited to 'include/scsi/libiscsi.h')
-rw-r--r--include/scsi/libiscsi.h67
1 files changed, 41 insertions, 26 deletions
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index ea0816d4904d..3f631b08a1ab 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -48,9 +48,8 @@ struct iscsi_nopin;
48#define debug_scsi(fmt...) 48#define debug_scsi(fmt...)
49#endif 49#endif
50 50
51#define ISCSI_XMIT_CMDS_MAX 128 /* must be power of 2 */ 51#define ISCSI_DEF_XMIT_CMDS_MAX 128 /* must be power of 2 */
52#define ISCSI_MGMT_CMDS_MAX 32 /* must be power of 2 */ 52#define ISCSI_MGMT_CMDS_MAX 16 /* must be power of 2 */
53#define ISCSI_CONN_MAX 1
54 53
55#define ISCSI_MGMT_ITT_OFFSET 0xa00 54#define ISCSI_MGMT_ITT_OFFSET 0xa00
56 55
@@ -73,6 +72,8 @@ struct iscsi_nopin;
73#define ISCSI_AGE_SHIFT 28 72#define ISCSI_AGE_SHIFT 28
74#define ISCSI_AGE_MASK (0xf << ISCSI_AGE_SHIFT) 73#define ISCSI_AGE_MASK (0xf << ISCSI_AGE_SHIFT)
75 74
75#define ISCSI_ADDRESS_BUF_LEN 64
76
76struct iscsi_mgmt_task { 77struct iscsi_mgmt_task {
77 /* 78 /*
78 * Becuae LLDs allocate their hdr differently, this is a pointer to 79 * Becuae LLDs allocate their hdr differently, this is a pointer to
@@ -80,7 +81,7 @@ struct iscsi_mgmt_task {
80 */ 81 */
81 struct iscsi_hdr *hdr; 82 struct iscsi_hdr *hdr;
82 char *data; /* mgmt payload */ 83 char *data; /* mgmt payload */
83 int data_count; /* counts data to be sent */ 84 unsigned data_count; /* counts data to be sent */
84 uint32_t itt; /* this ITT */ 85 uint32_t itt; /* this ITT */
85 void *dd_data; /* driver/transport data */ 86 void *dd_data; /* driver/transport data */
86 struct list_head running; 87 struct list_head running;
@@ -90,6 +91,7 @@ enum {
90 ISCSI_TASK_COMPLETED, 91 ISCSI_TASK_COMPLETED,
91 ISCSI_TASK_PENDING, 92 ISCSI_TASK_PENDING,
92 ISCSI_TASK_RUNNING, 93 ISCSI_TASK_RUNNING,
94 ISCSI_TASK_ABORTING,
93}; 95};
94 96
95struct iscsi_cmd_task { 97struct iscsi_cmd_task {
@@ -99,16 +101,14 @@ struct iscsi_cmd_task {
99 */ 101 */
100 struct iscsi_cmd *hdr; 102 struct iscsi_cmd *hdr;
101 int itt; /* this ITT */ 103 int itt; /* this ITT */
102 int datasn; /* DataSN */
103 104
104 uint32_t unsol_datasn; 105 uint32_t unsol_datasn;
105 int imm_count; /* imm-data (bytes) */ 106 unsigned imm_count; /* imm-data (bytes) */
106 int unsol_count; /* unsolicited (bytes)*/ 107 unsigned unsol_count; /* unsolicited (bytes)*/
107 /* offset in unsolicited stream (bytes); */ 108 /* offset in unsolicited stream (bytes); */
108 int unsol_offset; 109 unsigned unsol_offset;
109 int data_count; /* remaining Data-Out */ 110 unsigned data_count; /* remaining Data-Out */
110 struct scsi_cmnd *sc; /* associated SCSI cmd*/ 111 struct scsi_cmnd *sc; /* associated SCSI cmd*/
111 int total_length;
112 struct iscsi_conn *conn; /* used connection */ 112 struct iscsi_conn *conn; /* used connection */
113 struct iscsi_mgmt_task *mtask; /* tmf mtask in progr */ 113 struct iscsi_mgmt_task *mtask; /* tmf mtask in progr */
114 114
@@ -152,18 +152,11 @@ struct iscsi_conn {
152 struct iscsi_cmd_task *ctask; /* xmit ctask in progress */ 152 struct iscsi_cmd_task *ctask; /* xmit ctask in progress */
153 153
154 /* xmit */ 154 /* xmit */
155 struct kfifo *immqueue; /* immediate xmit queue */
156 struct kfifo *mgmtqueue; /* mgmt (control) xmit queue */ 155 struct kfifo *mgmtqueue; /* mgmt (control) xmit queue */
157 struct list_head mgmt_run_list; /* list of control tasks */ 156 struct list_head mgmt_run_list; /* list of control tasks */
158 struct list_head xmitqueue; /* data-path cmd queue */ 157 struct list_head xmitqueue; /* data-path cmd queue */
159 struct list_head run_list; /* list of cmds in progress */ 158 struct list_head run_list; /* list of cmds in progress */
160 struct work_struct xmitwork; /* per-conn. xmit workqueue */ 159 struct work_struct xmitwork; /* per-conn. xmit workqueue */
161 /*
162 * serializes connection xmit, access to kfifos:
163 * xmitqueue, immqueue, mgmtqueue
164 */
165 struct mutex xmitmutex;
166
167 unsigned long suspend_tx; /* suspend Tx */ 160 unsigned long suspend_tx; /* suspend Tx */
168 unsigned long suspend_rx; /* suspend Rx */ 161 unsigned long suspend_rx; /* suspend Rx */
169 162
@@ -174,8 +167,8 @@ struct iscsi_conn {
174 int tmabort_state; /* see TMABORT_INITIAL, etc.*/ 167 int tmabort_state; /* see TMABORT_INITIAL, etc.*/
175 168
176 /* negotiated params */ 169 /* negotiated params */
177 int max_recv_dlength; /* initiator_max_recv_dsl*/ 170 unsigned max_recv_dlength; /* initiator_max_recv_dsl*/
178 int max_xmit_dlength; /* target_max_recv_dsl */ 171 unsigned max_xmit_dlength; /* target_max_recv_dsl */
179 int hdrdgst_en; 172 int hdrdgst_en;
180 int datadgst_en; 173 int datadgst_en;
181 int ifmarker_en; 174 int ifmarker_en;
@@ -183,6 +176,12 @@ struct iscsi_conn {
183 /* values userspace uses to id a conn */ 176 /* values userspace uses to id a conn */
184 int persistent_port; 177 int persistent_port;
185 char *persistent_address; 178 char *persistent_address;
179 /* remote portal currently connected to */
180 int portal_port;
181 char portal_address[ISCSI_ADDRESS_BUF_LEN];
182 /* local address */
183 int local_port;
184 char local_address[ISCSI_ADDRESS_BUF_LEN];
186 185
187 /* MIB-statistics */ 186 /* MIB-statistics */
188 uint64_t txdata_octets; 187 uint64_t txdata_octets;
@@ -213,18 +212,25 @@ struct iscsi_session {
213 212
214 /* configuration */ 213 /* configuration */
215 int initial_r2t_en; 214 int initial_r2t_en;
216 int max_r2t; 215 unsigned max_r2t;
217 int imm_data_en; 216 int imm_data_en;
218 int first_burst; 217 unsigned first_burst;
219 int max_burst; 218 unsigned max_burst;
220 int time2wait; 219 int time2wait;
221 int time2retain; 220 int time2retain;
222 int pdu_inorder_en; 221 int pdu_inorder_en;
223 int dataseq_inorder_en; 222 int dataseq_inorder_en;
224 int erl; 223 int erl;
225 int tpgt; 224 int tpgt;
225 char *username;
226 char *username_in;
227 char *password;
228 char *password_in;
226 char *targetname; 229 char *targetname;
227 230 char *initiatorname;
231 /* hw address or netdev iscsi connection is bound to */
232 char *hwaddress;
233 char *netdev;
228 /* control data */ 234 /* control data */
229 struct iscsi_transport *tt; 235 struct iscsi_transport *tt;
230 struct Scsi_Host *host; 236 struct Scsi_Host *host;
@@ -255,12 +261,22 @@ extern int iscsi_eh_host_reset(struct scsi_cmnd *sc);
255extern int iscsi_queuecommand(struct scsi_cmnd *sc, 261extern int iscsi_queuecommand(struct scsi_cmnd *sc,
256 void (*done)(struct scsi_cmnd *)); 262 void (*done)(struct scsi_cmnd *));
257 263
264
265/*
266 * iSCSI host helpers.
267 */
268extern int iscsi_host_set_param(struct Scsi_Host *shost,
269 enum iscsi_host_param param, char *buf,
270 int buflen);
271extern int iscsi_host_get_param(struct Scsi_Host *shost,
272 enum iscsi_host_param param, char *buf);
273
258/* 274/*
259 * session management 275 * session management
260 */ 276 */
261extern struct iscsi_cls_session * 277extern struct iscsi_cls_session *
262iscsi_session_setup(struct iscsi_transport *, struct scsi_transport_template *, 278iscsi_session_setup(struct iscsi_transport *, struct scsi_transport_template *,
263 int, int, uint32_t, uint32_t *); 279 uint16_t, uint16_t, int, int, uint32_t, uint32_t *);
264extern void iscsi_session_teardown(struct iscsi_cls_session *); 280extern void iscsi_session_teardown(struct iscsi_cls_session *);
265extern struct iscsi_session *class_to_transport_session(struct iscsi_cls_session *); 281extern struct iscsi_session *class_to_transport_session(struct iscsi_cls_session *);
266extern void iscsi_session_recovery_timedout(struct iscsi_cls_session *); 282extern void iscsi_session_recovery_timedout(struct iscsi_cls_session *);
@@ -289,8 +305,7 @@ extern int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
289/* 305/*
290 * pdu and task processing 306 * pdu and task processing
291 */ 307 */
292extern int iscsi_check_assign_cmdsn(struct iscsi_session *, 308extern void iscsi_update_cmdsn(struct iscsi_session *, struct iscsi_nopin *);
293 struct iscsi_nopin *);
294extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *, 309extern void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *,
295 struct iscsi_data *hdr); 310 struct iscsi_data *hdr);
296extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *, 311extern int iscsi_conn_send_pdu(struct iscsi_cls_conn *, struct iscsi_hdr *,