4 #include <linux/firewire.h>
5 #include <linux/spinlock.h>
6 #include <linux/types.h>
7 #include <linux/workqueue.h>
8 #include <target/target_core_base.h>
10 #define SBP_VERSION "v0.1"
11 #define SBP_NAMELEN 32
13 #define SBP_ORB_FETCH_SIZE 8
15 #define MANAGEMENT_AGENT_STATE_IDLE 0
16 #define MANAGEMENT_AGENT_STATE_BUSY 1
18 #define ORB_NOTIFY(v) (((v) >> 31) & 0x01)
19 #define ORB_REQUEST_FORMAT(v) (((v) >> 29) & 0x03)
21 #define MANAGEMENT_ORB_FUNCTION(v) (((v) >> 16) & 0x0f)
23 #define MANAGEMENT_ORB_FUNCTION_LOGIN 0x0
24 #define MANAGEMENT_ORB_FUNCTION_QUERY_LOGINS 0x1
25 #define MANAGEMENT_ORB_FUNCTION_RECONNECT 0x3
26 #define MANAGEMENT_ORB_FUNCTION_SET_PASSWORD 0x4
27 #define MANAGEMENT_ORB_FUNCTION_LOGOUT 0x7
28 #define MANAGEMENT_ORB_FUNCTION_ABORT_TASK 0xb
29 #define MANAGEMENT_ORB_FUNCTION_ABORT_TASK_SET 0xc
30 #define MANAGEMENT_ORB_FUNCTION_LOGICAL_UNIT_RESET 0xe
31 #define MANAGEMENT_ORB_FUNCTION_TARGET_RESET 0xf
33 #define LOGIN_ORB_EXCLUSIVE(v) (((v) >> 28) & 0x01)
34 #define LOGIN_ORB_RESERVED(v) (((v) >> 24) & 0x0f)
35 #define LOGIN_ORB_RECONNECT(v) (((v) >> 20) & 0x0f)
36 #define LOGIN_ORB_LUN(v) (((v) >> 0) & 0xffff)
37 #define LOGIN_ORB_PASSWORD_LENGTH(v) (((v) >> 16) & 0xffff)
38 #define LOGIN_ORB_RESPONSE_LENGTH(v) (((v) >> 0) & 0xffff)
40 #define RECONNECT_ORB_LOGIN_ID(v) (((v) >> 0) & 0xffff)
41 #define LOGOUT_ORB_LOGIN_ID(v) (((v) >> 0) & 0xffff)
43 #define CMDBLK_ORB_DIRECTION(v) (((v) >> 27) & 0x01)
44 #define CMDBLK_ORB_SPEED(v) (((v) >> 24) & 0x07)
45 #define CMDBLK_ORB_MAX_PAYLOAD(v) (((v) >> 20) & 0x0f)
46 #define CMDBLK_ORB_PG_TBL_PRESENT(v) (((v) >> 19) & 0x01)
47 #define CMDBLK_ORB_PG_SIZE(v) (((v) >> 16) & 0x07)
48 #define CMDBLK_ORB_DATA_SIZE(v) (((v) >> 0) & 0xffff)
50 #define STATUS_BLOCK_SRC(v) (((v) & 0x03) << 30)
51 #define STATUS_BLOCK_RESP(v) (((v) & 0x03) << 28)
52 #define STATUS_BLOCK_DEAD(v) (((v) ? 1 : 0) << 27)
53 #define STATUS_BLOCK_LEN(v) (((v) & 0x07) << 24)
54 #define STATUS_BLOCK_SBP_STATUS(v) (((v) & 0xff) << 16)
55 #define STATUS_BLOCK_ORB_OFFSET_HIGH(v) (((v) & 0xffff) << 0)
57 #define STATUS_SRC_ORB_CONTINUING 0
58 #define STATUS_SRC_ORB_FINISHED 1
59 #define STATUS_SRC_UNSOLICITED 2
61 #define STATUS_RESP_REQUEST_COMPLETE 0
62 #define STATUS_RESP_TRANSPORT_FAILURE 1
63 #define STATUS_RESP_ILLEGAL_REQUEST 2
64 #define STATUS_RESP_VENDOR_DEPENDENT 3
66 #define SBP_STATUS_OK 0
67 #define SBP_STATUS_REQ_TYPE_NOTSUPP 1
68 #define SBP_STATUS_SPEED_NOTSUPP 2
69 #define SBP_STATUS_PAGE_SIZE_NOTSUPP 3
70 #define SBP_STATUS_ACCESS_DENIED 4
71 #define SBP_STATUS_LUN_NOTSUPP 5
72 #define SBP_STATUS_PAYLOAD_TOO_SMALL 6
74 #define SBP_STATUS_RESOURCES_UNAVAIL 8
75 #define SBP_STATUS_FUNCTION_REJECTED 9
76 #define SBP_STATUS_LOGIN_ID_UNKNOWN 10
77 #define SBP_STATUS_DUMMY_ORB_COMPLETE 11
78 #define SBP_STATUS_REQUEST_ABORTED 12
79 #define SBP_STATUS_UNSPECIFIED_ERROR 0xff
81 #define AGENT_STATE_RESET 0
82 #define AGENT_STATE_ACTIVE 1
83 #define AGENT_STATE_SUSPENDED 2
84 #define AGENT_STATE_DEAD 3
91 struct sbp_command_block_orb {
92 struct sbp2_pointer next_orb;
93 struct sbp2_pointer data_descriptor;
98 struct sbp_page_table_entry {
99 __be16 segment_length;
100 __be16 segment_base_hi;
101 __be32 segment_base_lo;
104 struct sbp_management_orb {
105 struct sbp2_pointer ptr1;
106 struct sbp2_pointer ptr2;
109 struct sbp2_pointer status_fifo;
112 struct sbp_status_block {
118 struct sbp_login_response_block {
120 struct sbp2_pointer command_block_agent;
121 __be32 reconnect_hold;
124 struct sbp_login_descriptor {
125 struct sbp_session *sess;
126 struct list_head link;
130 u64 status_fifo_addr;
134 struct sbp_target_agent *tgt_agt;
139 struct se_session *se_sess;
140 struct list_head login_list;
141 struct delayed_work maint_work;
143 u64 guid; /* login_owner_EUI_64 */
144 int node_id; /* login_owner_ID */
146 struct fw_card *card;
151 u64 reconnect_expires;
155 /* Target portal group tag for TCM */
157 /* Pointer back to sbp_tport */
158 struct sbp_tport *tport;
159 /* Returned by sbp_make_tpg() */
160 struct se_portal_group se_tpg;
164 /* Target Unit Identifier (EUI-64) */
166 /* Target port name */
167 char tport_name[SBP_NAMELEN];
168 /* Returned by sbp_make_tport() */
169 struct se_wwn tport_wwn;
173 /* FireWire unit directory */
174 struct fw_descriptor unit_directory;
176 /* SBP Management Agent */
177 struct sbp_management_agent *mgt_agt;
183 int max_reconnect_timeout;
184 int max_logins_per_lun;
187 static inline u64 sbp2_pointer_to_addr(const struct sbp2_pointer *ptr)
189 return (u64)(be32_to_cpu(ptr->high) & 0x0000ffff) << 32 |
190 (be32_to_cpu(ptr->low) & 0xfffffffc);
193 static inline void addr_to_sbp2_pointer(u64 addr, struct sbp2_pointer *ptr)
195 ptr->high = cpu_to_be32(addr >> 32);
196 ptr->low = cpu_to_be32(addr);
199 struct sbp_target_agent {
201 struct fw_address_handler handler;
202 struct sbp_login_descriptor *login;
204 struct work_struct work;
209 struct sbp_target_request {
210 struct sbp_login_descriptor *login;
212 struct sbp_command_block_orb orb;
213 struct sbp_status_block status;
214 struct work_struct work;
216 struct se_cmd se_cmd;
217 struct sbp_page_table_entry *pg_tbl;
220 unsigned char sense_buf[TRANSPORT_SENSE_BUFFER];
223 struct sbp_management_agent {
225 struct sbp_tport *tport;
226 struct fw_address_handler handler;
228 struct work_struct work;
230 struct sbp_management_request *request;
233 struct sbp_management_request {
234 struct sbp_management_orb orb;
235 struct sbp_status_block status;
236 struct fw_card *card;