1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 // Copyright (c) 2016-2017 Hisilicon Limited. 3 4 #ifndef __HNS3_ENET_H 5 #define __HNS3_ENET_H 6 7 #include <linux/dim.h> 8 #include <linux/if_vlan.h> 9 #include <net/page_pool.h> 10 11 #include "hnae3.h" 12 13 enum hns3_nic_state { 14 HNS3_NIC_STATE_TESTING, 15 HNS3_NIC_STATE_RESETTING, 16 HNS3_NIC_STATE_INITED, 17 HNS3_NIC_STATE_DOWN, 18 HNS3_NIC_STATE_DISABLED, 19 HNS3_NIC_STATE_REMOVING, 20 HNS3_NIC_STATE_SERVICE_INITED, 21 HNS3_NIC_STATE_SERVICE_SCHED, 22 HNS3_NIC_STATE2_RESET_REQUESTED, 23 HNS3_NIC_STATE_HW_TX_CSUM_ENABLE, 24 HNS3_NIC_STATE_RXD_ADV_LAYOUT_ENABLE, 25 HNS3_NIC_STATE_MAX 26 }; 27 28 #define HNS3_RING_RX_RING_BASEADDR_L_REG 0x00000 29 #define HNS3_RING_RX_RING_BASEADDR_H_REG 0x00004 30 #define HNS3_RING_RX_RING_BD_NUM_REG 0x00008 31 #define HNS3_RING_RX_RING_BD_LEN_REG 0x0000C 32 #define HNS3_RING_RX_RING_TAIL_REG 0x00018 33 #define HNS3_RING_RX_RING_HEAD_REG 0x0001C 34 #define HNS3_RING_RX_RING_FBDNUM_REG 0x00020 35 #define HNS3_RING_RX_RING_PKTNUM_RECORD_REG 0x0002C 36 37 #define HNS3_RING_TX_RING_BASEADDR_L_REG 0x00040 38 #define HNS3_RING_TX_RING_BASEADDR_H_REG 0x00044 39 #define HNS3_RING_TX_RING_BD_NUM_REG 0x00048 40 #define HNS3_RING_TX_RING_TC_REG 0x00050 41 #define HNS3_RING_TX_RING_TAIL_REG 0x00058 42 #define HNS3_RING_TX_RING_HEAD_REG 0x0005C 43 #define HNS3_RING_TX_RING_FBDNUM_REG 0x00060 44 #define HNS3_RING_TX_RING_OFFSET_REG 0x00064 45 #define HNS3_RING_TX_RING_EBDNUM_REG 0x00068 46 #define HNS3_RING_TX_RING_PKTNUM_RECORD_REG 0x0006C 47 #define HNS3_RING_TX_RING_EBD_OFFSET_REG 0x00070 48 #define HNS3_RING_TX_RING_BD_ERR_REG 0x00074 49 #define HNS3_RING_EN_REG 0x00090 50 #define HNS3_RING_RX_EN_REG 0x00098 51 #define HNS3_RING_TX_EN_REG 0x000D4 52 53 #define HNS3_RX_HEAD_SIZE 256 54 55 #define HNS3_TX_TIMEOUT (5 * HZ) 56 #define HNS3_RING_NAME_LEN 16 57 #define HNS3_BUFFER_SIZE_2048 2048 58 #define HNS3_RING_MAX_PENDING 32760 59 #define HNS3_RING_MIN_PENDING 72 60 #define HNS3_RING_BD_MULTIPLE 8 61 /* max frame size of mac */ 62 #define HNS3_MAX_MTU(max_frm_size) \ 63 ((max_frm_size) - (ETH_HLEN + ETH_FCS_LEN + 2 * VLAN_HLEN)) 64 65 #define HNS3_BD_SIZE_512_TYPE 0 66 #define HNS3_BD_SIZE_1024_TYPE 1 67 #define HNS3_BD_SIZE_2048_TYPE 2 68 #define HNS3_BD_SIZE_4096_TYPE 3 69 70 #define HNS3_RX_FLAG_VLAN_PRESENT 0x1 71 #define HNS3_RX_FLAG_L3ID_IPV4 0x0 72 #define HNS3_RX_FLAG_L3ID_IPV6 0x1 73 #define HNS3_RX_FLAG_L4ID_UDP 0x0 74 #define HNS3_RX_FLAG_L4ID_TCP 0x1 75 76 #define HNS3_RXD_DMAC_S 0 77 #define HNS3_RXD_DMAC_M (0x3 << HNS3_RXD_DMAC_S) 78 #define HNS3_RXD_VLAN_S 2 79 #define HNS3_RXD_VLAN_M (0x3 << HNS3_RXD_VLAN_S) 80 #define HNS3_RXD_L3ID_S 4 81 #define HNS3_RXD_L3ID_M (0xf << HNS3_RXD_L3ID_S) 82 #define HNS3_RXD_L4ID_S 8 83 #define HNS3_RXD_L4ID_M (0xf << HNS3_RXD_L4ID_S) 84 #define HNS3_RXD_FRAG_B 12 85 #define HNS3_RXD_STRP_TAGP_S 13 86 #define HNS3_RXD_STRP_TAGP_M (0x3 << HNS3_RXD_STRP_TAGP_S) 87 88 #define HNS3_RXD_L2E_B 16 89 #define HNS3_RXD_L3E_B 17 90 #define HNS3_RXD_L4E_B 18 91 #define HNS3_RXD_TRUNCAT_B 19 92 #define HNS3_RXD_HOI_B 20 93 #define HNS3_RXD_DOI_B 21 94 #define HNS3_RXD_OL3E_B 22 95 #define HNS3_RXD_OL4E_B 23 96 #define HNS3_RXD_GRO_COUNT_S 24 97 #define HNS3_RXD_GRO_COUNT_M (0x3f << HNS3_RXD_GRO_COUNT_S) 98 #define HNS3_RXD_GRO_FIXID_B 30 99 #define HNS3_RXD_GRO_ECN_B 31 100 101 #define HNS3_RXD_ODMAC_S 0 102 #define HNS3_RXD_ODMAC_M (0x3 << HNS3_RXD_ODMAC_S) 103 #define HNS3_RXD_OVLAN_S 2 104 #define HNS3_RXD_OVLAN_M (0x3 << HNS3_RXD_OVLAN_S) 105 #define HNS3_RXD_OL3ID_S 4 106 #define HNS3_RXD_OL3ID_M (0xf << HNS3_RXD_OL3ID_S) 107 #define HNS3_RXD_OL4ID_S 8 108 #define HNS3_RXD_OL4ID_M (0xf << HNS3_RXD_OL4ID_S) 109 #define HNS3_RXD_FBHI_S 12 110 #define HNS3_RXD_FBHI_M (0x3 << HNS3_RXD_FBHI_S) 111 #define HNS3_RXD_FBLI_S 14 112 #define HNS3_RXD_FBLI_M (0x3 << HNS3_RXD_FBLI_S) 113 114 #define HNS3_RXD_PTYPE_S 4 115 #define HNS3_RXD_PTYPE_M GENMASK(11, 4) 116 117 #define HNS3_RXD_BDTYPE_S 0 118 #define HNS3_RXD_BDTYPE_M (0xf << HNS3_RXD_BDTYPE_S) 119 #define HNS3_RXD_VLD_B 4 120 #define HNS3_RXD_UDP0_B 5 121 #define HNS3_RXD_EXTEND_B 7 122 #define HNS3_RXD_FE_B 8 123 #define HNS3_RXD_LUM_B 9 124 #define HNS3_RXD_CRCP_B 10 125 #define HNS3_RXD_L3L4P_B 11 126 #define HNS3_RXD_TSIDX_S 12 127 #define HNS3_RXD_TSIDX_M (0x3 << HNS3_RXD_TSIDX_S) 128 #define HNS3_RXD_TS_VLD_B 14 129 #define HNS3_RXD_LKBK_B 15 130 #define HNS3_RXD_GRO_SIZE_S 16 131 #define HNS3_RXD_GRO_SIZE_M (0x3fff << HNS3_RXD_GRO_SIZE_S) 132 133 #define HNS3_TXD_L3T_S 0 134 #define HNS3_TXD_L3T_M (0x3 << HNS3_TXD_L3T_S) 135 #define HNS3_TXD_L4T_S 2 136 #define HNS3_TXD_L4T_M (0x3 << HNS3_TXD_L4T_S) 137 #define HNS3_TXD_L3CS_B 4 138 #define HNS3_TXD_L4CS_B 5 139 #define HNS3_TXD_VLAN_B 6 140 #define HNS3_TXD_TSO_B 7 141 142 #define HNS3_TXD_L2LEN_S 8 143 #define HNS3_TXD_L2LEN_M (0xff << HNS3_TXD_L2LEN_S) 144 #define HNS3_TXD_L3LEN_S 16 145 #define HNS3_TXD_L3LEN_M (0xff << HNS3_TXD_L3LEN_S) 146 #define HNS3_TXD_L4LEN_S 24 147 #define HNS3_TXD_L4LEN_M (0xff << HNS3_TXD_L4LEN_S) 148 149 #define HNS3_TXD_CSUM_START_S 8 150 #define HNS3_TXD_CSUM_START_M (0xffff << HNS3_TXD_CSUM_START_S) 151 152 #define HNS3_TXD_OL3T_S 0 153 #define HNS3_TXD_OL3T_M (0x3 << HNS3_TXD_OL3T_S) 154 #define HNS3_TXD_OVLAN_B 2 155 #define HNS3_TXD_MACSEC_B 3 156 #define HNS3_TXD_TUNTYPE_S 4 157 #define HNS3_TXD_TUNTYPE_M (0xf << HNS3_TXD_TUNTYPE_S) 158 159 #define HNS3_TXD_CSUM_OFFSET_S 8 160 #define HNS3_TXD_CSUM_OFFSET_M (0xffff << HNS3_TXD_CSUM_OFFSET_S) 161 162 #define HNS3_TXD_BDTYPE_S 0 163 #define HNS3_TXD_BDTYPE_M (0xf << HNS3_TXD_BDTYPE_S) 164 #define HNS3_TXD_FE_B 4 165 #define HNS3_TXD_SC_S 5 166 #define HNS3_TXD_SC_M (0x3 << HNS3_TXD_SC_S) 167 #define HNS3_TXD_EXTEND_B 7 168 #define HNS3_TXD_VLD_B 8 169 #define HNS3_TXD_RI_B 9 170 #define HNS3_TXD_RA_B 10 171 #define HNS3_TXD_TSYN_B 11 172 #define HNS3_TXD_DECTTL_S 12 173 #define HNS3_TXD_DECTTL_M (0xf << HNS3_TXD_DECTTL_S) 174 175 #define HNS3_TXD_OL4CS_B 22 176 177 #define HNS3_TXD_MSS_S 0 178 #define HNS3_TXD_MSS_M (0x3fff << HNS3_TXD_MSS_S) 179 #define HNS3_TXD_HW_CS_B 14 180 181 #define HNS3_VECTOR_TX_IRQ BIT_ULL(0) 182 #define HNS3_VECTOR_RX_IRQ BIT_ULL(1) 183 184 #define HNS3_VECTOR_NOT_INITED 0 185 #define HNS3_VECTOR_INITED 1 186 187 #define HNS3_MAX_BD_SIZE 65535 188 #define HNS3_MAX_TSO_BD_NUM 63U 189 #define HNS3_MAX_TSO_SIZE \ 190 (HNS3_MAX_BD_SIZE * HNS3_MAX_TSO_BD_NUM) 191 192 #define HNS3_MAX_NON_TSO_SIZE(max_non_tso_bd_num) \ 193 (HNS3_MAX_BD_SIZE * (max_non_tso_bd_num)) 194 195 #define HNS3_VECTOR_GL0_OFFSET 0x100 196 #define HNS3_VECTOR_GL1_OFFSET 0x200 197 #define HNS3_VECTOR_GL2_OFFSET 0x300 198 #define HNS3_VECTOR_RL_OFFSET 0x900 199 #define HNS3_VECTOR_RL_EN_B 6 200 #define HNS3_VECTOR_TX_QL_OFFSET 0xe00 201 #define HNS3_VECTOR_RX_QL_OFFSET 0xf00 202 203 #define HNS3_RING_EN_B 0 204 205 enum hns3_pkt_l2t_type { 206 HNS3_L2_TYPE_UNICAST, 207 HNS3_L2_TYPE_MULTICAST, 208 HNS3_L2_TYPE_BROADCAST, 209 HNS3_L2_TYPE_INVALID, 210 }; 211 212 enum hns3_pkt_l3t_type { 213 HNS3_L3T_NONE, 214 HNS3_L3T_IPV6, 215 HNS3_L3T_IPV4, 216 HNS3_L3T_RESERVED 217 }; 218 219 enum hns3_pkt_l4t_type { 220 HNS3_L4T_UNKNOWN, 221 HNS3_L4T_TCP, 222 HNS3_L4T_UDP, 223 HNS3_L4T_SCTP 224 }; 225 226 enum hns3_pkt_ol3t_type { 227 HNS3_OL3T_NONE, 228 HNS3_OL3T_IPV6, 229 HNS3_OL3T_IPV4_NO_CSUM, 230 HNS3_OL3T_IPV4_CSUM 231 }; 232 233 enum hns3_pkt_tun_type { 234 HNS3_TUN_NONE, 235 HNS3_TUN_MAC_IN_UDP, 236 HNS3_TUN_NVGRE, 237 HNS3_TUN_OTHER 238 }; 239 240 /* hardware spec ring buffer format */ 241 struct __packed hns3_desc { 242 union { 243 __le64 addr; 244 __le16 csum; 245 struct { 246 __le32 ts_nsec; 247 __le32 ts_sec; 248 }; 249 }; 250 union { 251 struct { 252 __le16 vlan_tag; 253 __le16 send_size; 254 union { 255 __le32 type_cs_vlan_tso_len; 256 struct { 257 __u8 type_cs_vlan_tso; 258 __u8 l2_len; 259 __u8 l3_len; 260 __u8 l4_len; 261 }; 262 }; 263 __le16 outer_vlan_tag; 264 __le16 tv; 265 266 union { 267 __le32 ol_type_vlan_len_msec; 268 struct { 269 __u8 ol_type_vlan_msec; 270 __u8 ol2_len; 271 __u8 ol3_len; 272 __u8 ol4_len; 273 }; 274 }; 275 276 __le32 paylen_ol4cs; 277 __le16 bdtp_fe_sc_vld_ra_ri; 278 __le16 mss_hw_csum; 279 } tx; 280 281 struct { 282 __le32 l234_info; 283 __le16 pkt_len; 284 __le16 size; 285 286 __le32 rss_hash; 287 __le16 fd_id; 288 __le16 vlan_tag; 289 290 union { 291 __le32 ol_info; 292 struct { 293 __le16 o_dm_vlan_id_fb; 294 __le16 ot_vlan_tag; 295 }; 296 }; 297 298 __le32 bd_base_info; 299 } rx; 300 }; 301 }; 302 303 enum hns3_desc_type { 304 DESC_TYPE_UNKNOWN = 0, 305 DESC_TYPE_SKB = 1 << 0, 306 DESC_TYPE_FRAGLIST_SKB = 1 << 1, 307 DESC_TYPE_PAGE = 1 << 2, 308 DESC_TYPE_BOUNCE_ALL = 1 << 3, 309 DESC_TYPE_BOUNCE_HEAD = 1 << 4, 310 DESC_TYPE_SGL_SKB = 1 << 5, 311 DESC_TYPE_PP_FRAG = 1 << 6, 312 }; 313 314 struct hns3_desc_cb { 315 dma_addr_t dma; /* dma address of this desc */ 316 void *buf; /* cpu addr for a desc */ 317 318 /* priv data for the desc, e.g. skb when use with ip stack */ 319 void *priv; 320 321 union { 322 u32 page_offset; /* for rx */ 323 u32 send_bytes; /* for tx */ 324 }; 325 326 u32 length; /* length of the buffer */ 327 328 u16 reuse_flag; 329 330 /* desc type, used by the ring user to mark the type of the priv data */ 331 u16 type; 332 u16 pagecnt_bias; 333 }; 334 335 enum hns3_pkt_l3type { 336 HNS3_L3_TYPE_IPV4, 337 HNS3_L3_TYPE_IPV6, 338 HNS3_L3_TYPE_ARP, 339 HNS3_L3_TYPE_RARP, 340 HNS3_L3_TYPE_IPV4_OPT, 341 HNS3_L3_TYPE_IPV6_EXT, 342 HNS3_L3_TYPE_LLDP, 343 HNS3_L3_TYPE_BPDU, 344 HNS3_L3_TYPE_MAC_PAUSE, 345 HNS3_L3_TYPE_PFC_PAUSE,/* 0x9*/ 346 347 /* reserved for 0xA~0xB */ 348 349 HNS3_L3_TYPE_CNM = 0xc, 350 351 /* reserved for 0xD~0xE */ 352 353 HNS3_L3_TYPE_PARSE_FAIL = 0xf /* must be last */ 354 }; 355 356 enum hns3_pkt_l4type { 357 HNS3_L4_TYPE_UDP, 358 HNS3_L4_TYPE_TCP, 359 HNS3_L4_TYPE_GRE, 360 HNS3_L4_TYPE_SCTP, 361 HNS3_L4_TYPE_IGMP, 362 HNS3_L4_TYPE_ICMP, 363 364 /* reserved for 0x6~0xE */ 365 366 HNS3_L4_TYPE_PARSE_FAIL = 0xf /* must be last */ 367 }; 368 369 enum hns3_pkt_ol3type { 370 HNS3_OL3_TYPE_IPV4 = 0, 371 HNS3_OL3_TYPE_IPV6, 372 /* reserved for 0x2~0x3 */ 373 HNS3_OL3_TYPE_IPV4_OPT = 4, 374 HNS3_OL3_TYPE_IPV6_EXT, 375 376 /* reserved for 0x6~0xE */ 377 378 HNS3_OL3_TYPE_PARSE_FAIL = 0xf /* must be last */ 379 }; 380 381 enum hns3_pkt_ol4type { 382 HNS3_OL4_TYPE_NO_TUN, 383 HNS3_OL4_TYPE_MAC_IN_UDP, 384 HNS3_OL4_TYPE_NVGRE, 385 HNS3_OL4_TYPE_UNKNOWN 386 }; 387 388 struct hns3_rx_ptype { 389 u32 ptype:8; 390 u32 csum_level:2; 391 u32 ip_summed:2; 392 u32 l3_type:4; 393 u32 valid:1; 394 }; 395 396 struct ring_stats { 397 u64 sw_err_cnt; 398 u64 seg_pkt_cnt; 399 union { 400 struct { 401 u64 tx_pkts; 402 u64 tx_bytes; 403 u64 tx_more; 404 u64 restart_queue; 405 u64 tx_busy; 406 u64 tx_copy; 407 u64 tx_vlan_err; 408 u64 tx_l4_proto_err; 409 u64 tx_l2l3l4_err; 410 u64 tx_tso_err; 411 u64 over_max_recursion; 412 u64 hw_limitation; 413 u64 tx_bounce; 414 u64 tx_spare_full; 415 u64 copy_bits_err; 416 u64 tx_sgl; 417 u64 skb2sgl_err; 418 u64 map_sg_err; 419 }; 420 struct { 421 u64 rx_pkts; 422 u64 rx_bytes; 423 u64 rx_err_cnt; 424 u64 reuse_pg_cnt; 425 u64 err_pkt_len; 426 u64 err_bd_num; 427 u64 l2_err; 428 u64 l3l4_csum_err; 429 u64 csum_complete; 430 u64 rx_multicast; 431 u64 non_reuse_pg; 432 u64 frag_alloc_err; 433 u64 frag_alloc; 434 }; 435 __le16 csum; 436 }; 437 }; 438 439 struct hns3_tx_spare { 440 dma_addr_t dma; 441 void *buf; 442 u32 next_to_use; 443 u32 next_to_clean; 444 u32 last_to_clean; 445 u32 len; 446 }; 447 448 struct hns3_enet_ring { 449 struct hns3_desc *desc; /* dma map address space */ 450 struct hns3_desc_cb *desc_cb; 451 struct hns3_enet_ring *next; 452 struct hns3_enet_tqp_vector *tqp_vector; 453 struct hnae3_queue *tqp; 454 int queue_index; 455 struct device *dev; /* will be used for DMA mapping of descriptors */ 456 struct page_pool *page_pool; 457 458 /* statistic */ 459 struct ring_stats stats; 460 struct u64_stats_sync syncp; 461 462 dma_addr_t desc_dma_addr; 463 u32 buf_size; /* size for hnae_desc->addr, preset by AE */ 464 u16 desc_num; /* total number of desc */ 465 int next_to_use; /* idx of next spare desc */ 466 467 /* idx of lastest sent desc, the ring is empty when equal to 468 * next_to_use 469 */ 470 int next_to_clean; 471 u32 flag; /* ring attribute */ 472 473 int pending_buf; 474 union { 475 /* for Tx ring */ 476 struct { 477 u32 fd_qb_tx_sample; 478 int last_to_use; /* last idx used by xmit */ 479 u32 tx_copybreak; 480 struct hns3_tx_spare *tx_spare; 481 }; 482 483 /* for Rx ring */ 484 struct { 485 u32 pull_len; /* memcpy len for current rx packet */ 486 u32 rx_copybreak; 487 u32 frag_num; 488 /* first buffer address for current packet */ 489 unsigned char *va; 490 struct sk_buff *skb; 491 struct sk_buff *tail_skb; 492 }; 493 }; 494 } ____cacheline_internodealigned_in_smp; 495 496 enum hns3_flow_level_range { 497 HNS3_FLOW_LOW = 0, 498 HNS3_FLOW_MID = 1, 499 HNS3_FLOW_HIGH = 2, 500 HNS3_FLOW_ULTRA = 3, 501 }; 502 503 #define HNS3_INT_GL_50K 0x0014 504 #define HNS3_INT_GL_20K 0x0032 505 #define HNS3_INT_GL_18K 0x0036 506 #define HNS3_INT_GL_8K 0x007C 507 508 #define HNS3_INT_GL_1US BIT(31) 509 510 #define HNS3_INT_RL_MAX 0x00EC 511 #define HNS3_INT_RL_ENABLE_MASK 0x40 512 513 #define HNS3_INT_QL_DEFAULT_CFG 0x20 514 515 struct hns3_enet_coalesce { 516 u16 int_gl; 517 u16 int_ql; 518 u16 int_ql_max; 519 u8 adapt_enable:1; 520 u8 ql_enable:1; 521 u8 unit_1us:1; 522 enum hns3_flow_level_range flow_level; 523 }; 524 525 struct hns3_enet_ring_group { 526 /* array of pointers to rings */ 527 struct hns3_enet_ring *ring; 528 u64 total_bytes; /* total bytes processed this group */ 529 u64 total_packets; /* total packets processed this group */ 530 u16 count; 531 struct hns3_enet_coalesce coal; 532 struct dim dim; 533 }; 534 535 struct hns3_enet_tqp_vector { 536 struct hnae3_handle *handle; 537 u8 __iomem *mask_addr; 538 int vector_irq; 539 int irq_init_flag; 540 541 u16 idx; /* index in the TQP vector array per handle. */ 542 543 struct napi_struct napi; 544 545 struct hns3_enet_ring_group rx_group; 546 struct hns3_enet_ring_group tx_group; 547 548 cpumask_t affinity_mask; 549 u16 num_tqps; /* total number of tqps in TQP vector */ 550 struct irq_affinity_notify affinity_notify; 551 552 char name[HNAE3_INT_NAME_LEN]; 553 554 u64 event_cnt; 555 } ____cacheline_internodealigned_in_smp; 556 557 struct hns3_nic_priv { 558 struct hnae3_handle *ae_handle; 559 struct net_device *netdev; 560 struct device *dev; 561 562 /** 563 * the cb for nic to manage the ring buffer, the first half of the 564 * array is for tx_ring and vice versa for the second half 565 */ 566 struct hns3_enet_ring *ring; 567 struct hns3_enet_tqp_vector *tqp_vector; 568 u16 vector_num; 569 u8 max_non_tso_bd_num; 570 571 u64 tx_timeout_count; 572 573 unsigned long state; 574 575 struct hns3_enet_coalesce tx_coal; 576 struct hns3_enet_coalesce rx_coal; 577 u32 tx_copybreak; 578 u32 rx_copybreak; 579 }; 580 581 union l3_hdr_info { 582 struct iphdr *v4; 583 struct ipv6hdr *v6; 584 unsigned char *hdr; 585 }; 586 587 union l4_hdr_info { 588 struct tcphdr *tcp; 589 struct udphdr *udp; 590 struct gre_base_hdr *gre; 591 unsigned char *hdr; 592 }; 593 594 struct hns3_hw_error_info { 595 enum hnae3_hw_error_type type; 596 const char *msg; 597 }; 598 599 struct hns3_reset_type_map { 600 enum ethtool_reset_flags rst_flags; 601 enum hnae3_reset_type rst_type; 602 }; 603 604 static inline int ring_space(struct hns3_enet_ring *ring) 605 { 606 /* This smp_load_acquire() pairs with smp_store_release() in 607 * hns3_nic_reclaim_one_desc called by hns3_clean_tx_ring. 608 */ 609 int begin = smp_load_acquire(&ring->next_to_clean); 610 int end = READ_ONCE(ring->next_to_use); 611 612 return ((end >= begin) ? (ring->desc_num - end + begin) : 613 (begin - end)) - 1; 614 } 615 616 static inline u32 hns3_read_reg(void __iomem *base, u32 reg) 617 { 618 return readl(base + reg); 619 } 620 621 static inline void hns3_write_reg(void __iomem *base, u32 reg, u32 value) 622 { 623 u8 __iomem *reg_addr = READ_ONCE(base); 624 625 writel(value, reg_addr + reg); 626 } 627 628 #define hns3_read_dev(a, reg) \ 629 hns3_read_reg((a)->io_base, reg) 630 631 static inline bool hns3_nic_resetting(struct net_device *netdev) 632 { 633 struct hns3_nic_priv *priv = netdev_priv(netdev); 634 635 return test_bit(HNS3_NIC_STATE_RESETTING, &priv->state); 636 } 637 638 #define hns3_write_dev(a, reg, value) \ 639 hns3_write_reg((a)->io_base, reg, value) 640 641 #define ring_to_dev(ring) ((ring)->dev) 642 643 #define ring_to_netdev(ring) ((ring)->tqp_vector->napi.dev) 644 645 #define ring_to_dma_dir(ring) (HNAE3_IS_TX_RING(ring) ? \ 646 DMA_TO_DEVICE : DMA_FROM_DEVICE) 647 648 #define hns3_buf_size(_ring) ((_ring)->buf_size) 649 650 static inline unsigned int hns3_page_order(struct hns3_enet_ring *ring) 651 { 652 #if (PAGE_SIZE < 8192) 653 if (ring->buf_size > (PAGE_SIZE / 2)) 654 return 1; 655 #endif 656 return 0; 657 } 658 659 #define hns3_page_size(_ring) (PAGE_SIZE << hns3_page_order(_ring)) 660 661 /* iterator for handling rings in ring group */ 662 #define hns3_for_each_ring(pos, head) \ 663 for (pos = (head).ring; (pos); pos = (pos)->next) 664 665 #define hns3_get_handle(ndev) \ 666 (((struct hns3_nic_priv *)netdev_priv(ndev))->ae_handle) 667 668 #define hns3_gl_usec_to_reg(int_gl) ((int_gl) >> 1) 669 #define hns3_gl_round_down(int_gl) round_down(int_gl, 2) 670 671 #define hns3_rl_usec_to_reg(int_rl) ((int_rl) >> 2) 672 #define hns3_rl_round_down(int_rl) round_down(int_rl, 4) 673 674 void hns3_ethtool_set_ops(struct net_device *netdev); 675 int hns3_set_channels(struct net_device *netdev, 676 struct ethtool_channels *ch); 677 678 void hns3_clean_tx_ring(struct hns3_enet_ring *ring, int budget); 679 int hns3_init_all_ring(struct hns3_nic_priv *priv); 680 int hns3_nic_reset_all_ring(struct hnae3_handle *h); 681 void hns3_fini_ring(struct hns3_enet_ring *ring); 682 netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev); 683 bool hns3_is_phys_func(struct pci_dev *pdev); 684 int hns3_clean_rx_ring( 685 struct hns3_enet_ring *ring, int budget, 686 void (*rx_fn)(struct hns3_enet_ring *, struct sk_buff *)); 687 688 void hns3_set_vector_coalesce_rx_gl(struct hns3_enet_tqp_vector *tqp_vector, 689 u32 gl_value); 690 void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector, 691 u32 gl_value); 692 void hns3_set_vector_coalesce_rl(struct hns3_enet_tqp_vector *tqp_vector, 693 u32 rl_value); 694 void hns3_set_vector_coalesce_rx_ql(struct hns3_enet_tqp_vector *tqp_vector, 695 u32 ql_value); 696 void hns3_set_vector_coalesce_tx_ql(struct hns3_enet_tqp_vector *tqp_vector, 697 u32 ql_value); 698 699 void hns3_request_update_promisc_mode(struct hnae3_handle *handle); 700 701 #ifdef CONFIG_HNS3_DCB 702 void hns3_dcbnl_setup(struct hnae3_handle *handle); 703 #else 704 static inline void hns3_dcbnl_setup(struct hnae3_handle *handle) {} 705 #endif 706 707 int hns3_dbg_init(struct hnae3_handle *handle); 708 void hns3_dbg_uninit(struct hnae3_handle *handle); 709 void hns3_dbg_register_debugfs(const char *debugfs_dir_name); 710 void hns3_dbg_unregister_debugfs(void); 711 void hns3_shinfo_pack(struct skb_shared_info *shinfo, __u32 *size); 712 u16 hns3_get_max_available_channels(struct hnae3_handle *h); 713 #endif 714