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 qed_cxt_acquire - Acquire a new cid of a specific protocol type 58 * 59 * @param p_hwfn 60 * @param type 61 * @param p_cid 62 * 63 * @return int 64 */ 65 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn, 66 enum protocol_type type, 67 u32 *p_cid); 68 69 /** 70 * @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid 71 * 72 * 73 * @param p_hwfn 74 * @param p_info in/out 75 * 76 * @return int 77 */ 78 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn, 79 struct qed_cxt_info *p_info); 80 81 /** 82 * @brief qed_cxt_get_tid_mem_info 83 * 84 * @param p_hwfn 85 * @param p_info 86 * 87 * @return int 88 */ 89 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn, 90 struct qed_tid_mem *p_info); 91 92 #define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI 93 #define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE 94 #define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE 95 enum qed_cxt_elem_type { 96 QED_ELEM_CXT, 97 QED_ELEM_SRQ, 98 QED_ELEM_TASK 99 }; 100 101 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn, 102 enum protocol_type type, u32 *vf_cid); 103 104 /** 105 * @brief qed_cxt_set_pf_params - Set the PF params for cxt init 106 * 107 * @param p_hwfn 108 * @param rdma_tasks - requested maximum 109 * @return int 110 */ 111 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks); 112 113 /** 114 * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters 115 * 116 * @param p_hwfn 117 * @param last_line 118 * 119 * @return int 120 */ 121 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line); 122 123 /** 124 * @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased 125 * 126 * @param p_hwfn 127 * @param used_lines 128 */ 129 u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines); 130 131 /** 132 * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct 133 * 134 * @param p_hwfn 135 * 136 * @return int 137 */ 138 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn); 139 140 /** 141 * @brief qed_cxt_mngr_free 142 * 143 * @param p_hwfn 144 */ 145 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn); 146 147 /** 148 * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map 149 * 150 * @param p_hwfn 151 * 152 * @return int 153 */ 154 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn); 155 156 /** 157 * @brief qed_cxt_mngr_setup - Reset the acquired CIDs 158 * 159 * @param p_hwfn 160 */ 161 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn); 162 163 /** 164 * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path. 165 * 166 * 167 * 168 * @param p_hwfn 169 */ 170 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn); 171 172 /** 173 * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path. 174 * 175 * @param p_hwfn 176 * @param p_ptt 177 */ 178 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 179 180 /** 181 * @brief qed_qm_init_pf - Initailze the QM PF phase, per path 182 * 183 * @param p_hwfn 184 * @param p_ptt 185 */ 186 void qed_qm_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 187 188 /** 189 * @brief Reconfigures QM pf on the fly 190 * 191 * @param p_hwfn 192 * @param p_ptt 193 * 194 * @return int 195 */ 196 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 197 198 /** 199 * @brief qed_cxt_release - Release a cid 200 * 201 * @param p_hwfn 202 * @param cid 203 */ 204 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, 205 u32 cid); 206 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn, 207 enum qed_cxt_elem_type elem_type, u32 iid); 208 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn, 209 enum protocol_type type); 210 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn, 211 enum protocol_type type); 212 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto); 213 214 #define QED_CTX_WORKING_MEM 0 215 #define QED_CTX_FL_MEM 1 216 int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn, 217 u32 tid, u8 ctx_type, void **task_ctx); 218 #endif 219