drivers/net/bnxt/bnxt_rxr.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _BNXT_RXR_H_
   7 #define _BNXT_RXR_H_
   8 #include "hsi_struct_def_dpdk.h"
   9
  10 #define BNXT_TPA_START_AGG_ID_PRE_TH(cmp) \
  11         ((rte_le_to_cpu_16((cmp)->agg_id) & RX_TPA_START_CMPL_AGG_ID_MASK) >> \
  12          RX_TPA_START_CMPL_AGG_ID_SFT)
  13
  14 #define BNXT_TPA_START_AGG_ID_TH(cmp) \
  15         rte_le_to_cpu_16((cmp)->agg_id)
  16
  17 static inline uint16_t bnxt_tpa_start_agg_id(struct bnxt *bp,
  18                                              struct rx_tpa_start_cmpl *cmp)
  19 {
  20         if (BNXT_CHIP_P5(bp))
  21                 return BNXT_TPA_START_AGG_ID_TH(cmp);
  22         else
  23                 return BNXT_TPA_START_AGG_ID_PRE_TH(cmp);
  24 }
  25
  26 #define BNXT_TPA_END_AGG_BUFS(cmp) \
  27         (((cmp)->agg_bufs_v1 & RX_TPA_END_CMPL_AGG_BUFS_MASK) \
  28          >> RX_TPA_END_CMPL_AGG_BUFS_SFT)
  29
  30 #define BNXT_TPA_END_AGG_BUFS_TH(cmp) \
  31         ((cmp)->tpa_agg_bufs)
  32
  33 #define BNXT_TPA_END_AGG_ID(cmp) \
  34         (((cmp)->agg_id & RX_TPA_END_CMPL_AGG_ID_MASK) >> \
  35          RX_TPA_END_CMPL_AGG_ID_SFT)
  36
  37 #define BNXT_TPA_END_AGG_ID_TH(cmp) \
  38         rte_le_to_cpu_16((cmp)->agg_id)
  39
  40 #define BNXT_RX_L2_AGG_BUFS(cmp) \
  41         (((cmp)->agg_bufs_v1 & RX_PKT_CMPL_AGG_BUFS_MASK) >> \
  42                 RX_PKT_CMPL_AGG_BUFS_SFT)
  43
  44 #define BNXT_RX_POST_THRESH     32
  45
  46 /* Number of descriptors to process per inner loop in vector mode. */
  47 #define RTE_BNXT_DESCS_PER_LOOP         4U
  48
  49 #define BNXT_OL_FLAGS_TBL_DIM   64
  50 #define BNXT_OL_FLAGS_ERR_TBL_DIM 32
  51
  52 struct bnxt_tpa_info {
  53         struct rte_mbuf                 *mbuf;
  54         uint16_t                        len;
  55         uint32_t                        agg_count;
  56         struct rx_tpa_v2_abuf_cmpl      agg_arr[TPA_MAX_NUM_SEGS];
  57
  58         uint32_t                        rss_hash;
  59         uint32_t                        vlan;
  60         uint16_t                        cfa_code;
  61         uint8_t                         hash_valid:1;
  62         uint8_t                         vlan_valid:1;
  63         uint8_t                         cfa_code_valid:1;
  64         uint8_t                         l4_csum_valid:1;
  65 };
  66
  67 struct bnxt_rx_ring_info {
  68         uint16_t                rx_raw_prod;
  69         uint16_t                ag_raw_prod;
  70         uint16_t                rx_cons; /* Needed for representor */
  71         struct bnxt_db_info     rx_db;
  72         struct bnxt_db_info     ag_db;
  73
  74         struct rx_prod_pkt_bd   *rx_desc_ring;
  75         struct rx_prod_pkt_bd   *ag_desc_ring;
  76         struct rte_mbuf         **rx_buf_ring; /* sw ring */
  77         struct rte_mbuf         **ag_buf_ring; /* sw ring */
  78
  79         rte_iova_t              rx_desc_mapping;
  80         rte_iova_t              ag_desc_mapping;
  81
  82         struct bnxt_ring        *rx_ring_struct;
  83         struct bnxt_ring        *ag_ring_struct;
  84
  85         /*
  86          * To deal with out of order return from TPA, use free buffer indicator
  87          */
  88         struct rte_bitmap       *ag_bitmap;
  89
  90         struct bnxt_tpa_info *tpa_info;
  91
  92         uint32_t ol_flags_table[BNXT_OL_FLAGS_TBL_DIM];
  93         uint32_t ol_flags_err_table[BNXT_OL_FLAGS_ERR_TBL_DIM];
  94 };
  95
  96 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
  97                                uint16_t nb_pkts);
  98 void bnxt_free_rx_rings(struct bnxt *bp);
  99 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
 100 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);
 101 int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 102 int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 103
 104 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
 105 uint16_t bnxt_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 106                             uint16_t nb_pkts);
 107 int bnxt_rxq_vec_setup(struct bnxt_rx_queue *rxq);
 108 #endif
 109
 110 void bnxt_set_mark_in_mbuf(struct bnxt *bp,
 111                            struct rx_pkt_cmpl_hi *rxcmp1,
 112                            struct rte_mbuf *mbuf);
 113
 114 typedef uint32_t bnxt_cfa_code_dynfield_t;
 115 extern int bnxt_cfa_code_dynfield_offset;
 116
 117 static inline bnxt_cfa_code_dynfield_t *
 118 bnxt_cfa_code_dynfield(struct rte_mbuf *mbuf)
 119 {
 120         return RTE_MBUF_DYNFIELD(mbuf,
 121                 bnxt_cfa_code_dynfield_offset, bnxt_cfa_code_dynfield_t *);
 122 }
 123
 124 #define BNXT_RX_META_CFA_CODE_SHIFT             19
 125 #define BNXT_CFA_CODE_META_SHIFT                16
 126 #define BNXT_RX_META_CFA_CODE_INT_ACT_REC_BIT   0x8000000
 127 #define BNXT_RX_META_CFA_CODE_EEM_BIT           0x4000000
 128 #define BNXT_CFA_META_FMT_MASK                  0x70
 129 #define BNXT_CFA_META_FMT_SHFT                  4
 130 #define BNXT_CFA_META_FMT_EM_EEM_SHFT           1
 131 #define BNXT_CFA_META_FMT_EEM                   3
 132 #define BNXT_CFA_META_EEM_TCAM_SHIFT            31
 133 #define BNXT_CFA_META_EM_TEST(x) ((x) >> BNXT_CFA_META_EEM_TCAM_SHIFT)
 134
 135 #define BNXT_PTYPE_TBL_DIM      128
 136 extern uint32_t bnxt_ptype_table[BNXT_PTYPE_TBL_DIM];
 137
 138 /* Stingray2 specific code for RX completion parsing */
 139 #define RX_CMP_VLAN_VALID(rxcmp)        \
 140         (((struct rx_pkt_v2_cmpl *)rxcmp)->metadata1_payload_offset &   \
 141          RX_PKT_V2_CMPL_METADATA1_VALID)
 142
 143 #define RX_CMP_METADATA0_VID(rxcmp1)                            \
 144         ((((struct rx_pkt_v2_cmpl_hi *)rxcmp1)->metadata0) &    \
 145          (RX_PKT_V2_CMPL_HI_METADATA0_VID_MASK |                \
 146           RX_PKT_V2_CMPL_HI_METADATA0_DE  |                     \
 147           RX_PKT_V2_CMPL_HI_METADATA0_PRI_MASK))
 148
 149 static inline void bnxt_rx_vlan_v2(struct rte_mbuf *mbuf,
 150                                    struct rx_pkt_cmpl *rxcmp,
 151                                    struct rx_pkt_cmpl_hi *rxcmp1)
 152 {
 153         if (RX_CMP_VLAN_VALID(rxcmp)) {
 154                 mbuf->vlan_tci = RX_CMP_METADATA0_VID(rxcmp1);
 155                 mbuf->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
 156         }
 157 }
 158
 159 #define RX_CMP_FLAGS2_CS_ALL_OK_MODE_MASK       (0x1 << 3)
 160 #define RX_CMP_FLAGS2_CS_OK_HDR_CNT_MASK        (0x7 << 10)
 161 #define RX_CMP_FLAGS2_IP_CSUM_ALL_OK_MASK       (0x1 << 13)
 162 #define RX_CMP_FLAGS2_L4_CSUM_ALL_OK_MASK       (0x1 << 14)
 163
 164 #define RX_CMP_V2_CS_OK_HDR_CNT(flags)                          \
 165         (((flags) & RX_CMP_FLAGS2_CS_OK_HDR_CNT_MASK) >>        \
 166          RX_PKT_V2_CMPL_HI_FLAGS2_CS_OK_SFT)
 167
 168 #define RX_CMP_V2_CS_ALL_OK_MODE(flags)                         \
 169         (((flags) & RX_CMP_FLAGS2_CS_ALL_OK_MODE_MASK))
 170
 171 #define RX_CMP_FLAGS2_L3_CS_OK_MASK             (0x7 << 10)
 172 #define RX_CMP_FLAGS2_L4_CS_OK_MASK             (0x38 << 10)
 173 #define RX_CMP_FLAGS2_L3_CS_OK_SFT              10
 174 #define RX_CMP_FLAGS2_L4_CS_OK_SFT              13
 175
 176 #define RX_CMP_V2_L4_CS_OK(flags2)                      \
 177         (((flags2) & RX_CMP_FLAGS2_L4_CS_OK_MASK) >>    \
 178          RX_CMP_FLAGS2_L4_CS_OK_SFT)
 179
 180 #define RX_CMP_V2_L3_CS_OK(flags2)                      \
 181         (((flags2) & RX_CMP_FLAGS2_L3_CS_OK_MASK) >>    \
 182          RX_CMP_FLAGS2_L3_CS_OK_SFT)
 183
 184 #define RX_CMP_V2_L4_CS_ERR(err)                                \
 185         (((err) & RX_PKT_V2_CMPL_HI_ERRORS_PKT_ERROR_MASK)  ==  \
 186          RX_PKT_V2_CMPL_HI_ERRORS_PKT_ERROR_L4_CS_ERROR)
 187
 188 #define RX_CMP_V2_L3_CS_ERR(err)                                \
 189         (((err) & RX_PKT_V2_CMPL_HI_ERRORS_PKT_ERROR_MASK) ==   \
 190          RX_PKT_V2_CMPL_HI_ERRORS_PKT_ERROR_IP_CS_ERROR)
 191
 192 #define RX_CMP_V2_T_IP_CS_ERR(err)                              \
 193         (((err) & RX_PKT_V2_CMPL_HI_ERRORS_T_PKT_ERROR_MASK) == \
 194          RX_PKT_V2_CMPL_HI_ERRORS_T_PKT_ERROR_T_IP_CS_ERROR)
 195
 196 #define RX_CMP_V2_T_L4_CS_ERR(err)                              \
 197         (((err) & RX_PKT_V2_CMPL_HI_ERRORS_T_PKT_ERROR_MASK) == \
 198          RX_PKT_V2_CMPL_HI_ERRORS_T_PKT_ERROR_T_L4_CS_ERROR)
 199
 200 #define RX_CMP_V2_OT_L4_CS_ERR(err)                                     \
 201         (((err) & RX_PKT_V2_CMPL_HI_ERRORS_OT_PKT_ERROR_MASK) ==        \
 202          RX_PKT_V2_CMPL_HI_ERRORS_OT_PKT_ERROR_OT_L4_CS_ERROR)
 203
 204 static inline void bnxt_parse_csum_v2(struct rte_mbuf *mbuf,
 205                                       struct rx_pkt_cmpl_hi *rxcmp1)
 206 {
 207         struct rx_pkt_v2_cmpl_hi *v2_cmp =
 208                 (struct rx_pkt_v2_cmpl_hi *)(rxcmp1);
 209         uint16_t error_v2 = rte_le_to_cpu_16(v2_cmp->errors_v2);
 210         uint32_t flags2 = rte_le_to_cpu_32(v2_cmp->flags2);
 211         uint32_t hdr_cnt = 0, t_pkt = 0;
 212
 213         if (RX_CMP_V2_CS_ALL_OK_MODE(flags2)) {
 214                 hdr_cnt = RX_CMP_V2_CS_OK_HDR_CNT(flags2);
 215                 if (hdr_cnt > 1)
 216                         t_pkt = 1;
 217
 218                 if (unlikely(RX_CMP_V2_L4_CS_ERR(error_v2)))
 219                         mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
 220                 else if (flags2 & RX_CMP_FLAGS2_L4_CSUM_ALL_OK_MASK)
 221                         mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
 222                 else
 223                         mbuf->ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
 224
 225                 if (unlikely(RX_CMP_V2_L3_CS_ERR(error_v2)))
 226                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
 227                 else if (flags2 & RX_CMP_FLAGS2_IP_CSUM_ALL_OK_MASK)
 228                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
 229                 else
 230                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_UNKNOWN;
 231         } else {
 232                 hdr_cnt = RX_CMP_V2_L4_CS_OK(flags2);
 233                 if (hdr_cnt > 1)
 234                         t_pkt = 1;
 235
 236                 if (RX_CMP_V2_L4_CS_OK(flags2))
 237                         mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
 238                 else if (RX_CMP_V2_L4_CS_ERR(error_v2))
 239                         mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
 240                 else
 241                         mbuf->ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
 242
 243                 if (RX_CMP_V2_L3_CS_OK(flags2))
 244                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
 245                 else if (RX_CMP_V2_L3_CS_ERR(error_v2))
 246                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
 247                 else
 248                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_UNKNOWN;
 249         }
 250
 251         if (t_pkt) {
 252                 if (unlikely(RX_CMP_V2_OT_L4_CS_ERR(error_v2) ||
 253                                         RX_CMP_V2_T_L4_CS_ERR(error_v2)))
 254                         mbuf->ol_flags |= PKT_RX_OUTER_L4_CKSUM_BAD;
 255                 else
 256                         mbuf->ol_flags |= PKT_RX_OUTER_L4_CKSUM_GOOD;
 257
 258                 if (unlikely(RX_CMP_V2_T_IP_CS_ERR(error_v2)))
 259                         mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
 260         }
 261 }
 262
 263 static inline void
 264 bnxt_parse_pkt_type_v2(struct rte_mbuf *mbuf,
 265                        struct rx_pkt_cmpl *rxcmp,
 266                        struct rx_pkt_cmpl_hi *rxcmp1)
 267 {
 268         struct rx_pkt_v2_cmpl *v2_cmp =
 269                 (struct rx_pkt_v2_cmpl *)(rxcmp);
 270         struct rx_pkt_v2_cmpl_hi *v2_cmp1 =
 271                 (struct rx_pkt_v2_cmpl_hi *)(rxcmp1);
 272         uint16_t flags_type = v2_cmp->flags_type &
 273                 rte_cpu_to_le_32(RX_PKT_V2_CMPL_FLAGS_ITYPE_MASK);
 274         uint32_t flags2 = rte_le_to_cpu_32(v2_cmp1->flags2);
 275         uint32_t l3, pkt_type = 0, vlan = 0;
 276         uint32_t ip6 = 0, t_pkt = 0;
 277         uint32_t hdr_cnt, csum_count;
 278
 279         if (RX_CMP_V2_CS_ALL_OK_MODE(flags2)) {
 280                 hdr_cnt = RX_CMP_V2_CS_OK_HDR_CNT(flags2);
 281                 if (hdr_cnt > 1)
 282                         t_pkt = 1;
 283         } else {
 284                 csum_count = RX_CMP_V2_L4_CS_OK(flags2);
 285                 if (csum_count > 1)
 286                         t_pkt = 1;
 287         }
 288
 289         vlan = !!RX_CMP_VLAN_VALID(rxcmp);
 290         pkt_type |= vlan ? RTE_PTYPE_L2_ETHER_VLAN : RTE_PTYPE_L2_ETHER;
 291
 292         ip6 = !!(flags2 & RX_PKT_V2_CMPL_HI_FLAGS2_IP_TYPE);
 293
 294         if (!t_pkt && !ip6)
 295                 l3 = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
 296         else if (!t_pkt && ip6)
 297                 l3 = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
 298         else if (t_pkt && !ip6)
 299                 l3 = RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
 300         else
 301                 l3 = RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
 302
 303         switch (flags_type) {
 304         case RTE_LE32(RX_PKT_V2_CMPL_FLAGS_ITYPE_ICMP):
 305                 if (!t_pkt)
 306                         pkt_type |= l3 | RTE_PTYPE_L4_ICMP;
 307                 else
 308                         pkt_type |= l3 | RTE_PTYPE_INNER_L4_ICMP;
 309                 break;
 310         case RTE_LE32(RX_PKT_V2_CMPL_FLAGS_ITYPE_TCP):
 311                 if (!t_pkt)
 312                         pkt_type |= l3 | RTE_PTYPE_L4_TCP;
 313                 else
 314                         pkt_type |= l3 | RTE_PTYPE_INNER_L4_TCP;
 315                 break;
 316         case RTE_LE32(RX_PKT_V2_CMPL_FLAGS_ITYPE_UDP):
 317                 if (!t_pkt)
 318                         pkt_type |= l3 | RTE_PTYPE_L4_UDP;
 319                 else
 320                         pkt_type |= l3 | RTE_PTYPE_INNER_L4_UDP;
 321                 break;
 322         case RTE_LE32(RX_PKT_V2_CMPL_FLAGS_ITYPE_IP):
 323                 pkt_type |= l3;
 324                 break;
 325         }
 326
 327         mbuf->packet_type = pkt_type;
 328 }
 329
 330 #endif /*  _BNXT_RXR_H_ */