1 /* QLogic qed NIC Driver 2 * Copyright (c) 2015-2017 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 33 #ifndef _QED_CXT_H 34 #define _QED_CXT_H 35 36 #include <linux/types.h> 37 #include <linux/slab.h> 38 #include <linux/qed/qed_if.h> 39 #include "qed_hsi.h" 40 #include "qed.h" 41 42 struct qed_cxt_info { 43 void *p_cxt; 44 u32 iid; 45 enum protocol_type type; 46 }; 47 48 #define MAX_TID_BLOCKS 512 49 struct qed_tid_mem { 50 u32 tid_size; 51 u32 num_tids_per_block; 52 u32 waste; 53 u8 *blocks[MAX_TID_BLOCKS]; /* 4K */ 54 }; 55 56 /** 57 * @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid 58 * 59 * 60 * @param p_hwfn 61 * @param p_info in/out 62 * 63 * @return int 64 */ 65 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn, 66 struct qed_cxt_info *p_info); 67 68 /** 69 * @brief qed_cxt_get_tid_mem_info 70 * 71 * @param p_hwfn 72 * @param p_info 73 * 74 * @return int 75 */ 76 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn, 77 struct qed_tid_mem *p_info); 78 79 #define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI 80 #define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE 81 #define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE 82 enum qed_cxt_elem_type { 83 QED_ELEM_CXT, 84 QED_ELEM_SRQ, 85 QED_ELEM_TASK 86 }; 87 88 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn, 89 enum protocol_type type, u32 *vf_cid); 90 91 /** 92 * @brief qed_cxt_set_pf_params - Set the PF params for cxt init 93 * 94 * @param p_hwfn 95 * @param rdma_tasks - requested maximum 96 * @return int 97 */ 98 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks); 99 100 /** 101 * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters 102 * 103 * @param p_hwfn 104 * @param last_line 105 * 106 * @return int 107 */ 108 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line); 109 110 /** 111 * @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased 112 * 113 * @param p_hwfn 114 * @param used_lines 115 */ 116 u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines); 117 118 /** 119 * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct 120 * 121 * @param p_hwfn 122 * 123 * @return int 124 */ 125 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn); 126 127 /** 128 * @brief qed_cxt_mngr_free 129 * 130 * @param p_hwfn 131 */ 132 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn); 133 134 /** 135 * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map 136 * 137 * @param p_hwfn 138 * 139 * @return int 140 */ 141 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn); 142 143 /** 144 * @brief qed_cxt_mngr_setup - Reset the acquired CIDs 145 * 146 * @param p_hwfn 147 */ 148 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn); 149 150 /** 151 * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path. 152 * 153 * 154 * 155 * @param p_hwfn 156 */ 157 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn); 158 159 /** 160 * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path. 161 * 162 * @param p_hwfn 163 * @param p_ptt 164 */ 165 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 166 167 /** 168 * @brief qed_qm_init_pf - Initailze the QM PF phase, per path 169 * 170 * @param p_hwfn 171 * @param p_ptt 172 * @param is_pf_loading 173 */ 174 void qed_qm_init_pf(struct qed_hwfn *p_hwfn, 175 struct qed_ptt *p_ptt, bool is_pf_loading); 176 177 /** 178 * @brief Reconfigures QM pf on the fly 179 * 180 * @param p_hwfn 181 * @param p_ptt 182 * 183 * @return int 184 */ 185 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 186 187 #define QED_CXT_PF_CID (0xff) 188 189 /** 190 * @brief qed_cxt_release - Release a cid 191 * 192 * @param p_hwfn 193 * @param cid 194 */ 195 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid); 196 197 /** 198 * @brief qed_cxt_release - Release a cid belonging to a vf-queue 199 * 200 * @param p_hwfn 201 * @param cid 202 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF 203 */ 204 void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid); 205 206 /** 207 * @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type 208 * 209 * @param p_hwfn 210 * @param type 211 * @param p_cid 212 * 213 * @return int 214 */ 215 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 216 enum protocol_type type, u32 *p_cid); 217 218 /** 219 * @brief _qed_cxt_acquire - Acquire a new cid of a specific protocol type 220 * for a vf-queue 221 * 222 * @param p_hwfn 223 * @param type 224 * @param p_cid 225 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF 226 * 227 * @return int 228 */ 229 int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 230 enum protocol_type type, u32 *p_cid, u8 vfid); 231 232 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn, 233 enum qed_cxt_elem_type elem_type, u32 iid); 234 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn, 235 enum protocol_type type); 236 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn, 237 enum protocol_type type); 238 u32 qed_cxt_get_srq_count(struct qed_hwfn *p_hwfn); 239 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto); 240 241 #define QED_CTX_WORKING_MEM 0 242 #define QED_CTX_FL_MEM 1 243 int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn, 244 u32 tid, u8 ctx_type, void **task_ctx); 245 #endif 246