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39 * Structures and constants for the SCSI RDMA Protocol (SRP) as
40 * defined by the INCITS T10 committee. This file was written using
41 * draft Revision 16a of the SRP standard.
44 #include <linux/types.h>
62 SRP_BUF_FORMAT_DIRECT = 1 << 1,
63 SRP_BUF_FORMAT_INDIRECT = 1 << 2
68 SRP_DATA_DESC_DIRECT = 1,
69 SRP_DATA_DESC_INDIRECT = 2
73 SRP_TSK_ABORT_TASK = 0x01,
74 SRP_TSK_ABORT_TASK_SET = 0x02,
75 SRP_TSK_CLEAR_TASK_SET = 0x04,
76 SRP_TSK_LUN_RESET = 0x08,
77 SRP_TSK_CLEAR_ACA = 0x40
80 enum srp_login_rej_reason {
81 SRP_LOGIN_REJ_UNABLE_ESTABLISH_CHANNEL = 0x00010000,
82 SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES = 0x00010001,
83 SRP_LOGIN_REJ_REQ_IT_IU_LENGTH_TOO_LARGE = 0x00010002,
84 SRP_LOGIN_REJ_UNABLE_ASSOCIATE_CHANNEL = 0x00010003,
85 SRP_LOGIN_REJ_UNSUPPORTED_DESCRIPTOR_FMT = 0x00010004,
86 SRP_LOGIN_REJ_MULTI_CHANNEL_UNSUPPORTED = 0x00010005,
87 SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED = 0x00010006
90 struct srp_direct_buf {
97 * We need the packed attribute because the SRP spec puts the list of
98 * descriptors at an offset of 20, which is not aligned to the size
99 * of struct srp_direct_buf.
101 struct srp_indirect_buf {
102 struct srp_direct_buf table_desc;
104 struct srp_direct_buf desc_list[0] __attribute__((packed));
108 SRP_MULTICHAN_SINGLE = 0,
109 SRP_MULTICHAN_MULTI = 1
112 struct srp_login_req {
116 __be32 req_it_iu_len;
121 u8 initiator_port_id[16];
122 u8 target_port_id[16];
125 struct srp_login_rsp {
128 __be32 req_lim_delta;
130 __be32 max_it_iu_len;
131 __be32 max_ti_iu_len;
137 struct srp_login_rej {
147 struct srp_i_logout {
153 struct srp_t_logout {
162 * We need the packed attribute because the SRP spec only aligns the
163 * 8-byte LUN field to 4 bytes.
165 struct srp_tsk_mgmt {
171 __be64 lun __attribute__((packed));
180 * We need the packed attribute because the SRP spec only aligns the
181 * 8-byte LUN field to 4 bytes.
188 u8 data_out_desc_cnt;
192 __be64 lun __attribute__((packed));
202 SRP_RSP_FLAG_RSPVALID = 1 << 0,
203 SRP_RSP_FLAG_SNSVALID = 1 << 1,
204 SRP_RSP_FLAG_DOOVER = 1 << 2,
205 SRP_RSP_FLAG_DOUNDER = 1 << 3,
206 SRP_RSP_FLAG_DIOVER = 1 << 4,
207 SRP_RSP_FLAG_DIUNDER = 1 << 5
214 __be32 req_lim_delta;
219 __be32 data_out_res_cnt;
220 __be32 data_in_res_cnt;
221 __be32 sense_data_len;
222 __be32 resp_data_len;
226 #endif /* SCSI_SRP_H */