ib_srpt.h revision a42d985bd5b234da8b61347a78dc3057bf7bb94d
1a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/* 2a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * Copyright (c) 2006 - 2009 Mellanox Technology Inc. All rights reserved. 3a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * Copyright (C) 2009 - 2010 Bart Van Assche <bvanassche@acm.org>. 4a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 5a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * This software is available to you under a choice of one of two 6a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * licenses. You may choose to be licensed under the terms of the GNU 7a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * General Public License (GPL) Version 2, available from the file 8a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * COPYING in the main directory of this source tree, or the 9a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * OpenIB.org BSD license below: 10a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 11a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * Redistribution and use in source and binary forms, with or 12a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * without modification, are permitted provided that the following 13a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * conditions are met: 14a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 15a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * - Redistributions of source code must retain the above 16a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * copyright notice, this list of conditions and the following 17a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * disclaimer. 18a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 19a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * - Redistributions in binary form must reproduce the above 20a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * copyright notice, this list of conditions and the following 21a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * disclaimer in the documentation and/or other materials 22a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * provided with the distribution. 23a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 24a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * SOFTWARE. 32a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 33a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 34a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 35a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#ifndef IB_SRPT_H 36a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#define IB_SRPT_H 37a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 38a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <linux/version.h> 39a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <linux/types.h> 40a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <linux/list.h> 41a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <linux/wait.h> 42a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 43a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <rdma/ib_verbs.h> 44a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <rdma/ib_sa.h> 45a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <rdma/ib_cm.h> 46a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 47a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include <scsi/srp.h> 48a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 49a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#include "ib_dm_mad.h" 50a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 51a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/* 52a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * The prefix the ServiceName field must start with in the device management 53a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * ServiceEntries attribute pair. See also the SRP specification. 54a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 55a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#define SRP_SERVICE_NAME_PREFIX "SRP.T10:" 56a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 57a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asscheenum { 58a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche /* 59a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * SRP IOControllerProfile attributes for SRP target ports that have 60a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * not been defined in <scsi/srp.h>. Source: section B.7, table B.7 61a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * in the SRP specification. 62a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 63a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_PROTOCOL = 0x0108, 64a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_PROTOCOL_VERSION = 0x0001, 65a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_IO_SUBCLASS = 0x609e, 66a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_SEND_TO_IOC = 0x01, 67a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_SEND_FROM_IOC = 0x02, 68a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_RDMA_READ_FROM_IOC = 0x08, 69a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_RDMA_WRITE_FROM_IOC = 0x20, 70a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 71a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche /* 72a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * srp_login_cmd.req_flags bitmasks. See also table 9 in the SRP 73a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * specification. 74a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 75a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_MTCH_ACTION = 0x03, /* MULTI-CHANNEL ACTION */ 76a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_LOSOLNT = 0x10, /* logout solicited notification */ 77a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_CRSOLNT = 0x20, /* credit request solicited notification */ 78a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_AESOLNT = 0x40, /* asynchronous event solicited notification */ 79a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 80a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche /* 81a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * srp_cmd.sol_nt / srp_tsk_mgmt.sol_not bitmasks. See also tables 82a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 18 and 20 in the SRP specification. 83a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 84a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_SCSOLNT = 0x02, /* SCSOLNT = successful solicited notification */ 85a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_UCSOLNT = 0x04, /* UCSOLNT = unsuccessful solicited notification */ 86a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 87a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche /* 88a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * srp_rsp.sol_not / srp_t_logout.sol_not bitmasks. See also tables 89a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 16 and 22 in the SRP specification. 90a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 91a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_SOLNT = 0x01, /* SOLNT = solicited notification */ 92a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 93a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche /* See also table 24 in the SRP specification. */ 94a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_TSK_MGMT_SUCCESS = 0x00, 95a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_TSK_MGMT_FUNC_NOT_SUPP = 0x04, 96a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_TSK_MGMT_FAILED = 0x05, 97a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 98a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche /* See also table 21 in the SRP specification. */ 99a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_CMD_SIMPLE_Q = 0x0, 100a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_CMD_HEAD_OF_Q = 0x1, 101a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_CMD_ORDERED_Q = 0x2, 102a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_CMD_ACA = 0x4, 103a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 104a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_LOGIN_RSP_MULTICHAN_NO_CHAN = 0x0, 105a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_LOGIN_RSP_MULTICHAN_TERMINATED = 0x1, 106a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRP_LOGIN_RSP_MULTICHAN_MAINTAINED = 0x2, 107a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 108a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_DEF_SG_TABLESIZE = 128, 109a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_DEF_SG_PER_WQE = 16, 110a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 111a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MIN_SRPT_SQ_SIZE = 16, 112a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche DEF_SRPT_SQ_SIZE = 4096, 113a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_RQ_SIZE = 128, 114a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MIN_SRPT_SRQ_SIZE = 4, 115a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche DEFAULT_SRPT_SRQ_SIZE = 4095, 116a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MAX_SRPT_SRQ_SIZE = 65535, 117a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MAX_SRPT_RDMA_SIZE = 1U << 24, 118a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MAX_SRPT_RSP_SIZE = 1024, 119a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 120a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MIN_MAX_REQ_SIZE = 996, 121a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche DEFAULT_MAX_REQ_SIZE 122a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche = sizeof(struct srp_cmd)/*48*/ 123a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche + sizeof(struct srp_indirect_buf)/*20*/ 124a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche + 128 * sizeof(struct srp_direct_buf)/*16*/, 125a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 126a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche MIN_MAX_RSP_SIZE = sizeof(struct srp_rsp)/*36*/ + 4, 127a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche DEFAULT_MAX_RSP_SIZE = 256, /* leaves 220 bytes for sense data */ 128a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 129a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche DEFAULT_MAX_RDMA_SIZE = 65536, 130a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 131a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 132a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asscheenum srpt_opcode { 133a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_RECV, 134a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_SEND, 135a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_RDMA_MID, 136a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_RDMA_ABORT, 137a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_RDMA_READ_LAST, 138a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_RDMA_WRITE_LAST, 139a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 140a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 141a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestatic inline u64 encode_wr_id(u8 opcode, u32 idx) 142a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche{ 143a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche return ((u64)opcode << 32) | idx; 144a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche} 145a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestatic inline enum srpt_opcode opcode_from_wr_id(u64 wr_id) 146a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche{ 147a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche return wr_id >> 32; 148a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche} 149a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestatic inline u32 idx_from_wr_id(u64 wr_id) 150a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche{ 151a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche return (u32)wr_id; 152a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche} 153a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 154a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct rdma_iu { 155a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u64 raddr; 156a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u32 rkey; 157a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_sge *sge; 158a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u32 sge_cnt; 159a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche int mem_id; 160a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 161a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 162a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 163a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * enum srpt_command_state - SCSI command state managed by SRPT. 164a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_NEW: New command arrived and is being processed. 165a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_NEED_DATA: Processing a write or bidir command and waiting 166a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * for data arrival. 167a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_DATA_IN: Data for the write or bidir command arrived and is 168a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * being processed. 169a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_CMD_RSP_SENT: SRP_RSP for SRP_CMD has been sent. 170a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_MGMT: Processing a SCSI task management command. 171a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_MGMT_RSP_SENT: SRP_RSP for SRP_TSK_MGMT has been sent. 172a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @SRPT_STATE_DONE: Command processing finished successfully, command 173a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * processing has been aborted or command processing 174a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * failed. 175a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 176a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asscheenum srpt_command_state { 177a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_NEW = 0, 178a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_NEED_DATA = 1, 179a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_DATA_IN = 2, 180a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_CMD_RSP_SENT = 3, 181a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_MGMT = 4, 182a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_MGMT_RSP_SENT = 5, 183a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SRPT_STATE_DONE = 6, 184a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 185a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 186a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 187a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_ioctx - Shared SRPT I/O context information. 188a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @buf: Pointer to the buffer. 189a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @dma: DMA address of the buffer. 190a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @index: Index of the I/O context in its ioctx_ring array. 191a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 192a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_ioctx { 193a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche void *buf; 194a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche dma_addr_t dma; 195a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche uint32_t index; 196a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 197a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 198a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 199a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_recv_ioctx - SRPT receive I/O context. 200a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @ioctx: See above. 201a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @wait_list: Node for insertion in srpt_rdma_ch.cmd_wait_list. 202a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 203a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_recv_ioctx { 204a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_ioctx ioctx; 205a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head wait_list; 206a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 207a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 208a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 209a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_send_ioctx - SRPT send I/O context. 210a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @ioctx: See above. 211a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @ch: Channel pointer. 212a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @free_list: Node in srpt_rdma_ch.free_list. 213a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @n_rbuf: Number of data buffers in the received SRP command. 214a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @rbufs: Pointer to SRP data buffer array. 215a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @single_rbuf: SRP data buffer if the command has only a single buffer. 216a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sg: Pointer to sg-list associated with this I/O context. 217a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sg_cnt: SG-list size. 218a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @mapped_sg_count: ib_dma_map_sg() return value. 219a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @n_rdma_ius: Number of elements in the rdma_ius array. 220a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @rdma_ius: Array with information about the RDMA mapping. 221a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @tag: Tag of the received SRP information unit. 222a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @spinlock: Protects 'state'. 223a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @state: I/O context state. 224a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @rdma_aborted: If initiating a multipart RDMA transfer failed, whether 225a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * the already initiated transfers have finished. 226a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @cmd: Target core command data structure. 227a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sense_data: SCSI sense data. 228a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 229a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_send_ioctx { 230a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_ioctx ioctx; 231a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_rdma_ch *ch; 232a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct kref kref; 233a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct rdma_iu *rdma_ius; 234a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srp_direct_buf *rbufs; 235a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srp_direct_buf single_rbuf; 236a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct scatterlist *sg; 237a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head free_list; 238a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche spinlock_t spinlock; 239a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche enum srpt_command_state state; 240a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche bool rdma_aborted; 241a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct se_cmd cmd; 242a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct completion tx_done; 243a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u64 tag; 244a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche int sg_cnt; 245a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche int mapped_sg_count; 246a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u16 n_rdma_ius; 247a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 n_rdma; 248a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 n_rbuf; 249a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche bool queue_status_only; 250a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 sense_data[SCSI_SENSE_BUFFERSIZE]; 251a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 252a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 253a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 254a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * enum rdma_ch_state - SRP channel state. 255a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @CH_CONNECTING: QP is in RTR state; waiting for RTU. 256a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @CH_LIVE: QP is in RTS state. 257a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @CH_DISCONNECTING: DREQ has been received; waiting for DREP 258a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * or DREQ has been send and waiting for DREP 259a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * or . 260a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @CH_DRAINING: QP is in ERR state; waiting for last WQE event. 261a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @CH_RELEASING: Last WQE event has been received; releasing resources. 262a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 263a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asscheenum rdma_ch_state { 264a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche CH_CONNECTING, 265a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche CH_LIVE, 266a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche CH_DISCONNECTING, 267a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche CH_DRAINING, 268a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche CH_RELEASING 269a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 270a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 271a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 272a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_rdma_ch - RDMA channel. 273a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @wait_queue: Allows the kernel thread to wait for more work. 274a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @thread: Kernel thread that processes the IB queues associated with 275a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * the channel. 276a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @cm_id: IB CM ID associated with the channel. 277a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @qp: IB queue pair used for communicating over this channel. 278a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @cq: IB completion queue for this channel. 279a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @rq_size: IB receive queue size. 280a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @rsp_size IB response message size in bytes. 281a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sq_wr_avail: number of work requests available in the send queue. 282a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sport: pointer to the information of the HCA port used by this 283a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * channel. 284a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @i_port_id: 128-bit initiator port identifier copied from SRP_LOGIN_REQ. 285a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @t_port_id: 128-bit target port identifier copied from SRP_LOGIN_REQ. 286a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @max_ti_iu_len: maximum target-to-initiator information unit length. 287a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @req_lim: request limit: maximum number of requests that may be sent 288a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * by the initiator without having received a response. 289a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @req_lim_delta: Number of credits not yet sent back to the initiator. 290a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @spinlock: Protects free_list and state. 291a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @free_list: Head of list with free send I/O contexts. 292a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @state: channel state. See also enum rdma_ch_state. 293a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @ioctx_ring: Send ring. 294a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @wc: IB work completion array for srpt_process_completion(). 295a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @list: Node for insertion in the srpt_device.rch_list list. 296a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @cmd_wait_list: List of SCSI commands that arrived before the RTU event. This 297a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * list contains struct srpt_ioctx elements and is protected 298a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * against concurrent modification by the cm_id spinlock. 299a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sess: Session information associated with this SRP channel. 300a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sess_name: Session name. 301a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @release_work: Allows scheduling of srpt_release_channel(). 302a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @release_done: Enables waiting for srpt_release_channel() completion. 303a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 304a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_rdma_ch { 305a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche wait_queue_head_t wait_queue; 306a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct task_struct *thread; 307a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_cm_id *cm_id; 308a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_qp *qp; 309a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_cq *cq; 310a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche int rq_size; 311a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u32 rsp_size; 312a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche atomic_t sq_wr_avail; 313a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_port *sport; 314a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 i_port_id[16]; 315a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 t_port_id[16]; 316a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche int max_ti_iu_len; 317a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche atomic_t req_lim; 318a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche atomic_t req_lim_delta; 319a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche spinlock_t spinlock; 320a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head free_list; 321a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche enum rdma_ch_state state; 322a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_send_ioctx **ioctx_ring; 323a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_wc wc[16]; 324a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head list; 325a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head cmd_wait_list; 326a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct se_session *sess; 327a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 sess_name[36]; 328a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct work_struct release_work; 329a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct completion *release_done; 330a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 331a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 332a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 333a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_port_attib - Attributes for SRPT port 334a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @srp_max_rdma_size: Maximum size of SRP RDMA transfers for new connections. 335a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @srp_max_rsp_size: Maximum size of SRP response messages in bytes. 336a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @srp_sq_size: Shared receive queue (SRQ) size. 337a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 338a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_port_attrib { 339a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u32 srp_max_rdma_size; 340a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u32 srp_max_rsp_size; 341a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u32 srp_sq_size; 342a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 343a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 344a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 345a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_port - Information associated by SRPT with a single IB port. 346a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sdev: backpointer to the HCA information. 347a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @mad_agent: per-port management datagram processing information. 348a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @enabled: Whether or not this target port is enabled. 349a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port_guid: ASCII representation of Port GUID 350a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port: one-based port number. 351a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sm_lid: cached value of the port's sm_lid. 352a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @lid: cached value of the port's lid. 353a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @gid: cached value of the port's gid. 354a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port_acl_lock spinlock for port_acl_list: 355a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @work: work structure for refreshing the aforementioned cached values. 356a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port_tpg_1 Target portal group = 1 data. 357a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port_wwn: Target core WWN data. 358a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port_acl_list: Head of the list with all node ACLs for this port. 359a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 360a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_port { 361a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_device *sdev; 362a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_mad_agent *mad_agent; 363a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche bool enabled; 364a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 port_guid[64]; 365a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 port; 366a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u16 sm_lid; 367a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u16 lid; 368a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche union ib_gid gid; 369a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche spinlock_t port_acl_lock; 370a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct work_struct work; 371a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct se_portal_group port_tpg_1; 372a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct se_wwn port_wwn; 373a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head port_acl_list; 374a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_port_attrib port_attrib; 375a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 376a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 377a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 378a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_device - Information associated by SRPT with a single HCA. 379a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @device: Backpointer to the struct ib_device managed by the IB core. 380a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @pd: IB protection domain. 381a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @mr: L_Key (local key) with write access to all local memory. 382a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @srq: Per-HCA SRQ (shared receive queue). 383a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @cm_id: Connection identifier. 384a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @dev_attr: Attributes of the InfiniBand device as obtained during the 385a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * ib_client.add() callback. 386a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @srq_size: SRQ size. 387a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @ioctx_ring: Per-HCA SRQ. 388a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @rch_list: Per-device channel list -- see also srpt_rdma_ch.list. 389a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @ch_releaseQ: Enables waiting for removal from rch_list. 390a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @spinlock: Protects rch_list and tpg. 391a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @port: Information about the ports owned by this HCA. 392a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @event_handler: Per-HCA asynchronous IB event handler. 393a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @list: Node in srpt_dev_list. 394a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 395a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_device { 396a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_device *device; 397a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_pd *pd; 398a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_mr *mr; 399a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_srq *srq; 400a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_cm_id *cm_id; 401a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_device_attr dev_attr; 402a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche int srq_size; 403a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_recv_ioctx **ioctx_ring; 404a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head rch_list; 405a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche wait_queue_head_t ch_releaseQ; 406a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche spinlock_t spinlock; 407a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_port port[2]; 408a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct ib_event_handler event_handler; 409a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head list; 410a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 411a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 412a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/** 413a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * struct srpt_node_acl - Per-initiator ACL data (managed via configfs). 414a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @i_port_id: 128-bit SRP initiator port ID. 415a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @sport: port information. 416a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @nacl: Target core node ACL information. 417a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * @list: Element of the per-HCA ACL list. 418a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 419a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct srpt_node_acl { 420a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche u8 i_port_id[16]; 421a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct srpt_port *sport; 422a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct se_node_acl nacl; 423a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche struct list_head list; 424a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 425a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 426a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche/* 427a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * SRP-releated SCSI persistent reservation definitions. 428a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * 429a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * See also SPC4r28, section 7.6.1 (Protocol specific parameters introduction). 430a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * See also SPC4r28, section 7.6.4.5 (TransportID for initiator ports using 431a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche * SCSI over an RDMA interface). 432a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche */ 433a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 434a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asscheenum { 435a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche SCSI_TRANSPORTID_PROTOCOLID_SRP = 4, 436a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 437a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 438a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Asschestruct spc_rdma_transport_id { 439a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche uint8_t protocol_identifier; 440a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche uint8_t reserved[7]; 441a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche uint8_t i_port_id[16]; 442a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche}; 443a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche 444a42d985bd5b234da8b61347a78dc3057bf7bb94dBart Van Assche#endif /* IB_SRPT_H */ 445