1 /* QLogic qed NIC Driver 2 * Copyright (c) 2015-2016 QLogic Corporation 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and /or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 #ifndef _QED_ROCE_H 33 #define _QED_ROCE_H 34 #include <linux/types.h> 35 #include <linux/bitops.h> 36 #include <linux/kernel.h> 37 #include <linux/list.h> 38 #include <linux/slab.h> 39 #include <linux/spinlock.h> 40 #include <linux/qed/qed_if.h> 41 #include <linux/qed/qed_roce_if.h> 42 #include "qed.h" 43 #include "qed_dev_api.h" 44 #include "qed_hsi.h" 45 #include "qed_ll2.h" 46 47 #define QED_RDMA_MAX_FMR (RDMA_MAX_TIDS) 48 #define QED_RDMA_MAX_P_KEY (1) 49 #define QED_RDMA_MAX_WQE (0x7FFF) 50 #define QED_RDMA_MAX_SRQ_WQE_ELEM (0x7FFF) 51 #define QED_RDMA_PAGE_SIZE_CAPS (0xFFFFF000) 52 #define QED_RDMA_ACK_DELAY (15) 53 #define QED_RDMA_MAX_MR_SIZE (0x10000000000ULL) 54 #define QED_RDMA_MAX_CQS (RDMA_MAX_CQS) 55 #define QED_RDMA_MAX_MRS (RDMA_MAX_TIDS) 56 /* Add 1 for header element */ 57 #define QED_RDMA_MAX_SRQ_ELEM_PER_WQE (RDMA_MAX_SGE_PER_RQ_WQE + 1) 58 #define QED_RDMA_MAX_SGE_PER_SRQ_WQE (RDMA_MAX_SGE_PER_RQ_WQE) 59 #define QED_RDMA_SRQ_WQE_ELEM_SIZE (16) 60 #define QED_RDMA_MAX_SRQS (32 * 1024) 61 62 #define QED_RDMA_MAX_CQE_32_BIT (0x7FFFFFFF - 1) 63 #define QED_RDMA_MAX_CQE_16_BIT (0x7FFF - 1) 64 65 enum qed_rdma_toggle_bit { 66 QED_RDMA_TOGGLE_BIT_CLEAR = 0, 67 QED_RDMA_TOGGLE_BIT_SET = 1 68 }; 69 70 struct qed_bmap { 71 unsigned long *bitmap; 72 u32 max_count; 73 }; 74 75 struct qed_rdma_info { 76 /* spin lock to protect bitmaps */ 77 spinlock_t lock; 78 79 struct qed_bmap cq_map; 80 struct qed_bmap pd_map; 81 struct qed_bmap tid_map; 82 struct qed_bmap qp_map; 83 struct qed_bmap srq_map; 84 struct qed_bmap cid_map; 85 struct qed_bmap dpi_map; 86 struct qed_bmap toggle_bits; 87 struct qed_rdma_events events; 88 struct qed_rdma_device *dev; 89 struct qed_rdma_port *port; 90 u32 last_tid; 91 u8 num_cnqs; 92 u32 num_qps; 93 u32 num_mrs; 94 u16 queue_zone_base; 95 enum protocol_type proto; 96 }; 97 98 struct qed_rdma_qp { 99 struct regpair qp_handle; 100 struct regpair qp_handle_async; 101 u32 qpid; 102 u16 icid; 103 enum qed_roce_qp_state cur_state; 104 bool use_srq; 105 bool signal_all; 106 bool fmr_and_reserved_lkey; 107 108 bool incoming_rdma_read_en; 109 bool incoming_rdma_write_en; 110 bool incoming_atomic_en; 111 bool e2e_flow_control_en; 112 113 u16 pd; 114 u16 pkey; 115 u32 dest_qp; 116 u16 mtu; 117 u16 srq_id; 118 u8 traffic_class_tos; 119 u8 hop_limit_ttl; 120 u16 dpi; 121 u32 flow_label; 122 bool lb_indication; 123 u16 vlan_id; 124 u32 ack_timeout; 125 u8 retry_cnt; 126 u8 rnr_retry_cnt; 127 u8 min_rnr_nak_timer; 128 bool sqd_async; 129 union qed_gid sgid; 130 union qed_gid dgid; 131 enum roce_mode roce_mode; 132 u16 udp_src_port; 133 u8 stats_queue; 134 135 /* requeseter */ 136 u8 max_rd_atomic_req; 137 u32 sq_psn; 138 u16 sq_cq_id; 139 u16 sq_num_pages; 140 dma_addr_t sq_pbl_ptr; 141 void *orq; 142 dma_addr_t orq_phys_addr; 143 u8 orq_num_pages; 144 bool req_offloaded; 145 146 /* responder */ 147 u8 max_rd_atomic_resp; 148 u32 rq_psn; 149 u16 rq_cq_id; 150 u16 rq_num_pages; 151 dma_addr_t rq_pbl_ptr; 152 void *irq; 153 dma_addr_t irq_phys_addr; 154 u8 irq_num_pages; 155 bool resp_offloaded; 156 157 u8 remote_mac_addr[6]; 158 u8 local_mac_addr[6]; 159 160 void *shared_queue; 161 dma_addr_t shared_queue_phys_addr; 162 }; 163 164 #if IS_ENABLED(CONFIG_QED_RDMA) 165 void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 166 void qed_async_roce_event(struct qed_hwfn *p_hwfn, 167 struct event_ring_entry *p_eqe); 168 void qed_ll2b_complete_tx_gsi_packet(struct qed_hwfn *p_hwfn, 169 u8 connection_handle, 170 void *cookie, 171 dma_addr_t first_frag_addr, 172 bool b_last_fragment, bool b_last_packet); 173 void qed_ll2b_release_tx_gsi_packet(struct qed_hwfn *p_hwfn, 174 u8 connection_handle, 175 void *cookie, 176 dma_addr_t first_frag_addr, 177 bool b_last_fragment, bool b_last_packet); 178 void qed_ll2b_complete_rx_gsi_packet(struct qed_hwfn *p_hwfn, 179 u8 connection_handle, 180 void *cookie, 181 dma_addr_t rx_buf_addr, 182 u16 data_length, 183 u8 data_length_error, 184 u16 parse_flags, 185 u16 vlan, 186 u32 src_mac_addr_hi, 187 u16 src_mac_addr_lo, bool b_last_packet); 188 #else 189 static inline void qed_rdma_dpm_bar(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) {} 190 static inline void qed_async_roce_event(struct qed_hwfn *p_hwfn, struct event_ring_entry *p_eqe) {} 191 static inline void qed_ll2b_complete_tx_gsi_packet(struct qed_hwfn *p_hwfn, 192 u8 connection_handle, 193 void *cookie, 194 dma_addr_t first_frag_addr, 195 bool b_last_fragment, 196 bool b_last_packet) {} 197 static inline void qed_ll2b_release_tx_gsi_packet(struct qed_hwfn *p_hwfn, 198 u8 connection_handle, 199 void *cookie, 200 dma_addr_t first_frag_addr, 201 bool b_last_fragment, 202 bool b_last_packet) {} 203 static inline void qed_ll2b_complete_rx_gsi_packet(struct qed_hwfn *p_hwfn, 204 u8 connection_handle, 205 void *cookie, 206 dma_addr_t rx_buf_addr, 207 u16 data_length, 208 u8 data_length_error, 209 u16 parse_flags, 210 u16 vlan, 211 u32 src_mac_addr_hi, 212 u16 src_mac_addr_lo, 213 bool b_last_packet) {} 214 #endif 215 #endif 216