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_HW_H 34 #define _QED_HW_H 35 36 #include <linux/types.h> 37 #include <linux/bitops.h> 38 #include <linux/slab.h> 39 #include <linux/string.h> 40 #include "qed.h" 41 #include "qed_dev_api.h" 42 43 /* Forward decleration */ 44 struct qed_ptt; 45 46 enum reserved_ptts { 47 RESERVED_PTT_EDIAG, 48 RESERVED_PTT_USER_SPACE, 49 RESERVED_PTT_MAIN, 50 RESERVED_PTT_DPC, 51 RESERVED_PTT_MAX 52 }; 53 54 enum _dmae_cmd_dst_mask { 55 DMAE_CMD_DST_MASK_NONE = 0, 56 DMAE_CMD_DST_MASK_PCIE = 1, 57 DMAE_CMD_DST_MASK_GRC = 2 58 }; 59 60 enum _dmae_cmd_src_mask { 61 DMAE_CMD_SRC_MASK_PCIE = 0, 62 DMAE_CMD_SRC_MASK_GRC = 1 63 }; 64 65 enum _dmae_cmd_crc_mask { 66 DMAE_CMD_COMP_CRC_EN_MASK_NONE = 0, 67 DMAE_CMD_COMP_CRC_EN_MASK_SET = 1 68 }; 69 70 /* definitions for DMA constants */ 71 #define DMAE_GO_VALUE 0x1 72 73 #define DMAE_COMPLETION_VAL 0xD1AE 74 #define DMAE_CMD_ENDIANITY 0x2 75 76 #define DMAE_CMD_SIZE 14 77 #define DMAE_CMD_SIZE_TO_FILL (DMAE_CMD_SIZE - 5) 78 #define DMAE_MIN_WAIT_TIME 0x2 79 #define DMAE_MAX_CLIENTS 32 80 81 /** 82 * @brief qed_gtt_init - Initialize GTT windows 83 * 84 * @param p_hwfn 85 */ 86 void qed_gtt_init(struct qed_hwfn *p_hwfn); 87 88 /** 89 * @brief qed_ptt_invalidate - Forces all ptt entries to be re-configured 90 * 91 * @param p_hwfn 92 */ 93 void qed_ptt_invalidate(struct qed_hwfn *p_hwfn); 94 95 /** 96 * @brief qed_ptt_pool_alloc - Allocate and initialize PTT pool 97 * 98 * @param p_hwfn 99 * 100 * @return struct _qed_status - success (0), negative - error. 101 */ 102 int qed_ptt_pool_alloc(struct qed_hwfn *p_hwfn); 103 104 /** 105 * @brief qed_ptt_pool_free - 106 * 107 * @param p_hwfn 108 */ 109 void qed_ptt_pool_free(struct qed_hwfn *p_hwfn); 110 111 /** 112 * @brief qed_ptt_get_hw_addr - Get PTT's GRC/HW address 113 * 114 * @param p_hwfn 115 * @param p_ptt 116 * 117 * @return u32 118 */ 119 u32 qed_ptt_get_hw_addr(struct qed_hwfn *p_hwfn, 120 struct qed_ptt *p_ptt); 121 122 /** 123 * @brief qed_ptt_get_bar_addr - Get PPT's external BAR address 124 * 125 * @param p_hwfn 126 * @param p_ptt 127 * 128 * @return u32 129 */ 130 u32 qed_ptt_get_bar_addr(struct qed_ptt *p_ptt); 131 132 /** 133 * @brief qed_ptt_set_win - Set PTT Window's GRC BAR address 134 * 135 * @param p_hwfn 136 * @param new_hw_addr 137 * @param p_ptt 138 */ 139 void qed_ptt_set_win(struct qed_hwfn *p_hwfn, 140 struct qed_ptt *p_ptt, 141 u32 new_hw_addr); 142 143 /** 144 * @brief qed_get_reserved_ptt - Get a specific reserved PTT 145 * 146 * @param p_hwfn 147 * @param ptt_idx 148 * 149 * @return struct qed_ptt * 150 */ 151 struct qed_ptt *qed_get_reserved_ptt(struct qed_hwfn *p_hwfn, 152 enum reserved_ptts ptt_idx); 153 154 /** 155 * @brief qed_wr - Write value to BAR using the given ptt 156 * 157 * @param p_hwfn 158 * @param p_ptt 159 * @param val 160 * @param hw_addr 161 */ 162 void qed_wr(struct qed_hwfn *p_hwfn, 163 struct qed_ptt *p_ptt, 164 u32 hw_addr, 165 u32 val); 166 167 /** 168 * @brief qed_rd - Read value from BAR using the given ptt 169 * 170 * @param p_hwfn 171 * @param p_ptt 172 * @param val 173 * @param hw_addr 174 */ 175 u32 qed_rd(struct qed_hwfn *p_hwfn, 176 struct qed_ptt *p_ptt, 177 u32 hw_addr); 178 179 /** 180 * @brief qed_memcpy_from - copy n bytes from BAR using the given 181 * ptt 182 * 183 * @param p_hwfn 184 * @param p_ptt 185 * @param dest 186 * @param hw_addr 187 * @param n 188 */ 189 void qed_memcpy_from(struct qed_hwfn *p_hwfn, 190 struct qed_ptt *p_ptt, 191 void *dest, 192 u32 hw_addr, 193 size_t n); 194 195 /** 196 * @brief qed_memcpy_to - copy n bytes to BAR using the given 197 * ptt 198 * 199 * @param p_hwfn 200 * @param p_ptt 201 * @param hw_addr 202 * @param src 203 * @param n 204 */ 205 void qed_memcpy_to(struct qed_hwfn *p_hwfn, 206 struct qed_ptt *p_ptt, 207 u32 hw_addr, 208 void *src, 209 size_t n); 210 /** 211 * @brief qed_fid_pretend - pretend to another function when 212 * accessing the ptt window. There is no way to unpretend 213 * a function. The only way to cancel a pretend is to 214 * pretend back to the original function. 215 * 216 * @param p_hwfn 217 * @param p_ptt 218 * @param fid - fid field of pxp_pretend structure. Can contain 219 * either pf / vf, port/path fields are don't care. 220 */ 221 void qed_fid_pretend(struct qed_hwfn *p_hwfn, 222 struct qed_ptt *p_ptt, 223 u16 fid); 224 225 /** 226 * @brief qed_port_pretend - pretend to another port when 227 * accessing the ptt window 228 * 229 * @param p_hwfn 230 * @param p_ptt 231 * @param port_id - the port to pretend to 232 */ 233 void qed_port_pretend(struct qed_hwfn *p_hwfn, 234 struct qed_ptt *p_ptt, 235 u8 port_id); 236 237 /** 238 * @brief qed_port_unpretend - cancel any previously set port 239 * pretend 240 * 241 * @param p_hwfn 242 * @param p_ptt 243 */ 244 void qed_port_unpretend(struct qed_hwfn *p_hwfn, 245 struct qed_ptt *p_ptt); 246 247 /** 248 * @brief qed_port_fid_pretend - pretend to another port and another function 249 * when accessing the ptt window 250 * 251 * @param p_hwfn 252 * @param p_ptt 253 * @param port_id - the port to pretend to 254 * @param fid - fid field of pxp_pretend structure. Can contain either pf / vf. 255 */ 256 void qed_port_fid_pretend(struct qed_hwfn *p_hwfn, 257 struct qed_ptt *p_ptt, u8 port_id, u16 fid); 258 259 /** 260 * @brief qed_vfid_to_concrete - build a concrete FID for a 261 * given VF ID 262 * 263 * @param p_hwfn 264 * @param p_ptt 265 * @param vfid 266 */ 267 u32 qed_vfid_to_concrete(struct qed_hwfn *p_hwfn, u8 vfid); 268 269 /** 270 * @brief qed_dmae_idx_to_go_cmd - map the idx to dmae cmd 271 * this is declared here since other files will require it. 272 * @param idx 273 */ 274 u32 qed_dmae_idx_to_go_cmd(u8 idx); 275 276 /** 277 * @brief qed_dmae_info_alloc - Init the dmae_info structure 278 * which is part of p_hwfn. 279 * @param p_hwfn 280 */ 281 int qed_dmae_info_alloc(struct qed_hwfn *p_hwfn); 282 283 /** 284 * @brief qed_dmae_info_free - Free the dmae_info structure 285 * which is part of p_hwfn 286 * 287 * @param p_hwfn 288 */ 289 void qed_dmae_info_free(struct qed_hwfn *p_hwfn); 290 291 union qed_qm_pq_params { 292 struct { 293 u8 q_idx; 294 } iscsi; 295 296 struct { 297 u8 tc; 298 } core; 299 300 struct { 301 u8 is_vf; 302 u8 vf_id; 303 u8 tc; 304 } eth; 305 306 struct { 307 u8 dcqcn; 308 u8 qpid; /* roce relative */ 309 } roce; 310 }; 311 312 int qed_init_fw_data(struct qed_dev *cdev, 313 const u8 *fw_data); 314 315 int qed_dmae_sanity(struct qed_hwfn *p_hwfn, 316 struct qed_ptt *p_ptt, const char *phase); 317 318 #endif 319