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