summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/ibmvscsi/srp.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/ibmvscsi/srp.h')
-rw-r--r--drivers/scsi/ibmvscsi/srp.h225
1 files changed, 225 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/srp.h b/drivers/scsi/ibmvscsi/srp.h
new file mode 100644
index 0000000..e952c1c
--- /dev/null
+++ b/drivers/scsi/ibmvscsi/srp.h
@@ -0,0 +1,225 @@
+/*****************************************************************************/
+/* srp.h -- SCSI RDMA Protocol definitions */
+/* */
+/* Written By: Colin Devilbis, IBM Corporation */
+/* */
+/* Copyright (C) 2003 IBM Corporation */
+/* */
+/* This program is free software; you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation; either version 2 of the License, or */
+/* (at your option) any later version. */
+/* */
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
+/* GNU General Public License for more details. */
+/* */
+/* You should have received a copy of the GNU General Public License */
+/* along with this program; if not, write to the Free Software */
+/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+/* */
+/* */
+/* This file contains structures and definitions for the SCSI RDMA Protocol */
+/* (SRP) as defined in the T10 standard available at www.t10.org. This */
+/* file was based on the 16a version of the standard */
+/* */
+/*****************************************************************************/
+#ifndef SRP_H
+#define SRP_H
+
+#define PACKED __attribute__((packed))
+
+enum srp_types {
+ SRP_LOGIN_REQ_TYPE = 0x00,
+ SRP_LOGIN_RSP_TYPE = 0xC0,
+ SRP_LOGIN_REJ_TYPE = 0x80,
+ SRP_I_LOGOUT_TYPE = 0x03,
+ SRP_T_LOGOUT_TYPE = 0x80,
+ SRP_TSK_MGMT_TYPE = 0x01,
+ SRP_CMD_TYPE = 0x02,
+ SRP_RSP_TYPE = 0xC1,
+ SRP_CRED_REQ_TYPE = 0x81,
+ SRP_CRED_RSP_TYPE = 0x41,
+ SRP_AER_REQ_TYPE = 0x82,
+ SRP_AER_RSP_TYPE = 0x42
+};
+
+enum srp_descriptor_formats {
+ SRP_NO_BUFFER = 0x00,
+ SRP_DIRECT_BUFFER = 0x01,
+ SRP_INDIRECT_BUFFER = 0x02
+};
+
+struct memory_descriptor {
+ u64 virtual_address;
+ u32 memory_handle;
+ u32 length;
+};
+
+struct indirect_descriptor {
+ struct memory_descriptor head;
+ u32 total_length;
+ struct memory_descriptor list[1] PACKED;
+};
+
+struct srp_generic {
+ u8 type;
+ u8 reserved1[7];
+ u64 tag;
+};
+
+struct srp_login_req {
+ u8 type;
+ u8 reserved1[7];
+ u64 tag;
+ u32 max_requested_initiator_to_target_iulen;
+ u32 reserved2;
+ u16 required_buffer_formats;
+ u8 reserved3:6;
+ u8 multi_channel_action:2;
+ u8 reserved4;
+ u32 reserved5;
+ u8 initiator_port_identifier[16];
+ u8 target_port_identifier[16];
+};
+
+struct srp_login_rsp {
+ u8 type;
+ u8 reserved1[3];
+ u32 request_limit_delta;
+ u64 tag;
+ u32 max_initiator_to_target_iulen;
+ u32 max_target_to_initiator_iulen;
+ u16 supported_buffer_formats;
+ u8 reserved2:6;
+ u8 multi_channel_result:2;
+ u8 reserved3;
+ u8 reserved4[24];
+};
+
+struct srp_login_rej {
+ u8 type;
+ u8 reserved1[3];
+ u32 reason;
+ u64 tag;
+ u64 reserved2;
+ u16 supported_buffer_formats;
+ u8 reserved3[6];
+};
+
+struct srp_i_logout {
+ u8 type;
+ u8 reserved1[7];
+ u64 tag;
+};
+
+struct srp_t_logout {
+ u8 type;
+ u8 reserved1[3];
+ u32 reason;
+ u64 tag;
+};
+
+struct srp_tsk_mgmt {
+ u8 type;
+ u8 reserved1[7];
+ u64 tag;
+ u32 reserved2;
+ u64 lun PACKED;
+ u8 reserved3;
+ u8 reserved4;
+ u8 task_mgmt_flags;
+ u8 reserved5;
+ u64 managed_task_tag;
+ u64 reserved6;
+};
+
+struct srp_cmd {
+ u8 type;
+ u32 reserved1 PACKED;
+ u8 data_out_format:4;
+ u8 data_in_format:4;
+ u8 data_out_count;
+ u8 data_in_count;
+ u64 tag;
+ u32 reserved2;
+ u64 lun PACKED;
+ u8 reserved3;
+ u8 reserved4:5;
+ u8 task_attribute:3;
+ u8 reserved5;
+ u8 additional_cdb_len;
+ u8 cdb[16];
+ u8 additional_data[0x100 - 0x30];
+};
+
+struct srp_rsp {
+ u8 type;
+ u8 reserved1[3];
+ u32 request_limit_delta;
+ u64 tag;
+ u16 reserved2;
+ u8 reserved3:2;
+ u8 diunder:1;
+ u8 diover:1;
+ u8 dounder:1;
+ u8 doover:1;
+ u8 snsvalid:1;
+ u8 rspvalid:1;
+ u8 status;
+ u32 data_in_residual_count;
+ u32 data_out_residual_count;
+ u32 sense_data_list_length;
+ u32 response_data_list_length;
+ u8 sense_and_response_data[18];
+};
+
+struct srp_cred_req {
+ u8 type;
+ u8 reserved1[3];
+ u32 request_limit_delta;
+ u64 tag;
+};
+
+struct srp_cred_rsp {
+ u8 type;
+ u8 reserved1[7];
+ u64 tag;
+};
+
+struct srp_aer_req {
+ u8 type;
+ u8 reserved1[3];
+ u32 request_limit_delta;
+ u64 tag;
+ u32 reserved2;
+ u64 lun;
+ u32 sense_data_list_length;
+ u32 reserved3;
+ u8 sense_data[20];
+};
+
+struct srp_aer_rsp {
+ u8 type;
+ u8 reserved1[7];
+ u64 tag;
+};
+
+union srp_iu {
+ struct srp_generic generic;
+ struct srp_login_req login_req;
+ struct srp_login_rsp login_rsp;
+ struct srp_login_rej login_rej;
+ struct srp_i_logout i_logout;
+ struct srp_t_logout t_logout;
+ struct srp_tsk_mgmt tsk_mgmt;
+ struct srp_cmd cmd;
+ struct srp_rsp rsp;
+ struct srp_cred_req cred_req;
+ struct srp_cred_rsp cred_rsp;
+ struct srp_aer_req aer_req;
+ struct srp_aer_rsp aer_rsp;
+};
+
+#endif
OpenPOWER on IntegriCloud