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 enum qed_cxt_elem_type { 95 QED_ELEM_CXT, 96 QED_ELEM_SRQ, 97 QED_ELEM_TASK 98 }; 99 100 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn, 101 enum protocol_type type, u32 *vf_cid); 102 103 /** 104 * @brief qed_cxt_set_pf_params - Set the PF params for cxt init 105 * 106 * @param p_hwfn 107 * 108 * @return int 109 */ 110 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn); 111 112 /** 113 * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters 114 * 115 * @param p_hwfn 116 * 117 * @return int 118 */ 119 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn); 120 121 /** 122 * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct 123 * 124 * @param p_hwfn 125 * 126 * @return int 127 */ 128 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn); 129 130 /** 131 * @brief qed_cxt_mngr_free 132 * 133 * @param p_hwfn 134 */ 135 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn); 136 137 /** 138 * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map 139 * 140 * @param p_hwfn 141 * 142 * @return int 143 */ 144 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn); 145 146 /** 147 * @brief qed_cxt_mngr_setup - Reset the acquired CIDs 148 * 149 * @param p_hwfn 150 */ 151 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn); 152 153 /** 154 * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path. 155 * 156 * 157 * 158 * @param p_hwfn 159 */ 160 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn); 161 162 /** 163 * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path. 164 * 165 * 166 * 167 * @param p_hwfn 168 */ 169 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn); 170 171 /** 172 * @brief qed_qm_init_pf - Initailze the QM PF phase, per path 173 * 174 * @param p_hwfn 175 */ 176 177 void qed_qm_init_pf(struct qed_hwfn *p_hwfn); 178 179 /** 180 * @brief Reconfigures QM pf on the fly 181 * 182 * @param p_hwfn 183 * @param p_ptt 184 * 185 * @return int 186 */ 187 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 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, 196 u32 cid); 197 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn, 198 enum qed_cxt_elem_type elem_type, u32 iid); 199 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn, 200 enum protocol_type type); 201 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn, 202 enum protocol_type type); 203 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto); 204 205 #define QED_CTX_WORKING_MEM 0 206 #define QED_CTX_FL_MEM 1 207 #endif 208