drivers/net/dpaa/dpaa_rxtx.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  *   Copyright 2016 Freescale Semiconductor, Inc. All rights reserved.
   4  *   Copyright 2017 NXP
   5  *
   6  */
   7
   8 #ifndef __DPDK_RXTX_H__
   9 #define __DPDK_RXTX_H__
  10
  11 /* internal offset from where IC is copied to packet buffer*/
  12 #define DEFAULT_ICIOF          32
  13 /* IC transfer size */
  14 #define DEFAULT_ICSZ    48
  15
  16 /* IC offsets from buffer header address */
  17 #define DEFAULT_RX_ICEOF        16
  18 #define DEFAULT_TX_ICEOF        16
  19
  20 /*
  21  * Values for the L3R field of the FM Parse Results
  22  */
  23 /* L3 Type field: First IP Present IPv4 */
  24 #define DPAA_L3_PARSE_RESULT_IPV4 0x80
  25 /* L3 Type field: First IP Present IPv6 */
  26 #define DPAA_L3_PARSE_RESULT_IPV6       0x40
  27 /* Values for the L4R field of the FM Parse Results
  28  * See $8.8.4.7.20 - L4 HXS - L4 Results from DPAA-Rev2 Reference Manual.
  29  */
  30 /* L4 Type field: UDP */
  31 #define DPAA_L4_PARSE_RESULT_UDP        0x40
  32 /* L4 Type field: TCP */
  33 #define DPAA_L4_PARSE_RESULT_TCP        0x20
  34
  35 #define DPAA_SGT_MAX_ENTRIES 16 /* maximum number of entries in SG Table */
  36
  37 #define DPAA_MAX_DEQUEUE_NUM_FRAMES    63
  38         /** <Maximum number of frames to be dequeued in a single rx call*/
  39
  40 /* FD structure masks and offset */
  41 #define DPAA_FD_FORMAT_MASK 0xE0000000
  42 #define DPAA_FD_OFFSET_MASK 0x1FF00000
  43 #define DPAA_FD_LENGTH_MASK 0xFFFFF
  44 #define DPAA_FD_FORMAT_SHIFT 29
  45 #define DPAA_FD_OFFSET_SHIFT 20
  46
  47 /* Parsing mask (Little Endian) - 0x00E044ED00800000
  48  *      Classification Plan ID 0x00
  49  *      L4R 0xE0 -
  50  *              0x20 - TCP
  51  *              0x40 - UDP
  52  *              0x80 - SCTP
  53  *      L3R 0xEDC4 (in Big Endian) -
  54  *              0x8000 - IPv4
  55  *              0x4000 - IPv6
  56  *              0x8140 - IPv4 Ext + Frag
  57  *              0x8040 - IPv4 Frag
  58  *              0x8100 - IPv4 Ext
  59  *              0x4140 - IPv6 Ext + Frag
  60  *              0x4040 - IPv6 Frag
  61  *              0x4100 - IPv6 Ext
  62  *      L2R 0x8000 (in Big Endian) -
  63  *              0x8000 - Ethernet type
  64  *      ShimR & Logical Port ID 0x0000
  65  */
  66 #define DPAA_PARSE_MASK                 0x00E044ED00800000
  67 #define DPAA_PARSE_VLAN_MASK            0x0000000000700000
  68
  69 /* Parsed values (Little Endian) */
  70 #define DPAA_PKT_TYPE_NONE              0x0000000000000000
  71 #define DPAA_PKT_TYPE_ETHER             0x0000000000800000
  72 #define DPAA_PKT_TYPE_IPV4 \
  73                         (0x0000008000000000 | DPAA_PKT_TYPE_ETHER)
  74 #define DPAA_PKT_TYPE_IPV6 \
  75                         (0x0000004000000000 | DPAA_PKT_TYPE_ETHER)
  76 #define DPAA_PKT_TYPE_GRE \
  77                         (0x0000002000000000 | DPAA_PKT_TYPE_ETHER)
  78 #define DPAA_PKT_TYPE_IPV4_FRAG \
  79                         (0x0000400000000000 | DPAA_PKT_TYPE_IPV4)
  80 #define DPAA_PKT_TYPE_IPV6_FRAG \
  81                         (0x0000400000000000 | DPAA_PKT_TYPE_IPV6)
  82 #define DPAA_PKT_TYPE_IPV4_EXT \
  83                         (0x0000000100000000 | DPAA_PKT_TYPE_IPV4)
  84 #define DPAA_PKT_TYPE_IPV6_EXT \
  85                         (0x0000000100000000 | DPAA_PKT_TYPE_IPV6)
  86 #define DPAA_PKT_TYPE_IPV4_TCP \
  87                         (0x0020000000000000 | DPAA_PKT_TYPE_IPV4)
  88 #define DPAA_PKT_TYPE_IPV6_TCP \
  89                         (0x0020000000000000 | DPAA_PKT_TYPE_IPV6)
  90 #define DPAA_PKT_TYPE_IPV4_UDP \
  91                         (0x0040000000000000 | DPAA_PKT_TYPE_IPV4)
  92 #define DPAA_PKT_TYPE_IPV6_UDP \
  93                         (0x0040000000000000 | DPAA_PKT_TYPE_IPV6)
  94 #define DPAA_PKT_TYPE_IPV4_SCTP \
  95                         (0x0080000000000000 | DPAA_PKT_TYPE_IPV4)
  96 #define DPAA_PKT_TYPE_IPV6_SCTP \
  97                         (0x0080000000000000 | DPAA_PKT_TYPE_IPV6)
  98 #define DPAA_PKT_TYPE_IPV4_FRAG_TCP \
  99                         (0x0020000000000000 | DPAA_PKT_TYPE_IPV4_FRAG)
 100 #define DPAA_PKT_TYPE_IPV6_FRAG_TCP \
 101                         (0x0020000000000000 | DPAA_PKT_TYPE_IPV6_FRAG)
 102 #define DPAA_PKT_TYPE_IPV4_FRAG_UDP \
 103                         (0x0040000000000000 | DPAA_PKT_TYPE_IPV4_FRAG)
 104 #define DPAA_PKT_TYPE_IPV6_FRAG_UDP \
 105                         (0x0040000000000000 | DPAA_PKT_TYPE_IPV6_FRAG)
 106 #define DPAA_PKT_TYPE_IPV4_FRAG_SCTP \
 107                         (0x0080000000000000 | DPAA_PKT_TYPE_IPV4_FRAG)
 108 #define DPAA_PKT_TYPE_IPV6_FRAG_SCTP \
 109                         (0x0080000000000000 | DPAA_PKT_TYPE_IPV6_FRAG)
 110 #define DPAA_PKT_TYPE_IPV4_EXT_UDP \
 111                         (0x0040000000000000 | DPAA_PKT_TYPE_IPV4_EXT)
 112 #define DPAA_PKT_TYPE_IPV6_EXT_UDP \
 113                         (0x0040000000000000 | DPAA_PKT_TYPE_IPV6_EXT)
 114 #define DPAA_PKT_TYPE_IPV4_EXT_TCP \
 115                         (0x0020000000000000 | DPAA_PKT_TYPE_IPV4_EXT)
 116 #define DPAA_PKT_TYPE_IPV6_EXT_TCP \
 117                         (0x0020000000000000 | DPAA_PKT_TYPE_IPV6_EXT)
 118 #define DPAA_PKT_TYPE_TUNNEL_4_4 \
 119                         (0x0000000800000000 | DPAA_PKT_TYPE_IPV4)
 120 #define DPAA_PKT_TYPE_TUNNEL_6_6 \
 121                         (0x0000000400000000 | DPAA_PKT_TYPE_IPV6)
 122 #define DPAA_PKT_TYPE_TUNNEL_4_6 \
 123                         (0x0000000400000000 | DPAA_PKT_TYPE_IPV4)
 124 #define DPAA_PKT_TYPE_TUNNEL_6_4 \
 125                         (0x0000000800000000 | DPAA_PKT_TYPE_IPV6)
 126 #define DPAA_PKT_TYPE_TUNNEL_4_4_UDP \
 127                         (0x0040000000000000 | DPAA_PKT_TYPE_TUNNEL_4_4)
 128 #define DPAA_PKT_TYPE_TUNNEL_6_6_UDP \
 129                         (0x0040000000000000 | DPAA_PKT_TYPE_TUNNEL_6_6)
 130 #define DPAA_PKT_TYPE_TUNNEL_4_6_UDP \
 131                         (0x0040000000000000 | DPAA_PKT_TYPE_TUNNEL_4_6)
 132 #define DPAA_PKT_TYPE_TUNNEL_6_4_UDP \
 133                         (0x0040000000000000 | DPAA_PKT_TYPE_TUNNEL_6_4)
 134 #define DPAA_PKT_TYPE_TUNNEL_4_4_TCP \
 135                         (0x0020000000000000 | DPAA_PKT_TYPE_TUNNEL_4_4)
 136 #define DPAA_PKT_TYPE_TUNNEL_6_6_TCP \
 137                         (0x0020000000000000 | DPAA_PKT_TYPE_TUNNEL_6_6)
 138 #define DPAA_PKT_TYPE_TUNNEL_4_6_TCP \
 139                         (0x0020000000000000 | DPAA_PKT_TYPE_TUNNEL_4_6)
 140 #define DPAA_PKT_TYPE_TUNNEL_6_4_TCP \
 141                         (0x0020000000000000 | DPAA_PKT_TYPE_TUNNEL_6_4)
 142 #define DPAA_PKT_L3_LEN_SHIFT   7
 143
 144 /**
 145  * FMan parse result array
 146  */
 147 struct dpaa_eth_parse_results_t {
 148          uint8_t     lpid;               /**< Logical port id */
 149          uint8_t     shimr;              /**< Shim header result  */
 150          union {
 151                 uint16_t              l2r;      /**< Layer 2 result */
 152                 struct {
 153 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 154                         uint16_t      ethernet:1;
 155                         uint16_t      vlan:1;
 156                         uint16_t      llc_snap:1;
 157                         uint16_t      mpls:1;
 158                         uint16_t      ppoe_ppp:1;
 159                         uint16_t      unused_1:3;
 160                         uint16_t      unknown_eth_proto:1;
 161                         uint16_t      eth_frame_type:2;
 162                         uint16_t      l2r_err:5;
 163                         /*00-unicast, 01-multicast, 11-broadcast*/
 164 #else
 165                         uint16_t      l2r_err:5;
 166                         uint16_t      eth_frame_type:2;
 167                         uint16_t      unknown_eth_proto:1;
 168                         uint16_t      unused_1:3;
 169                         uint16_t      ppoe_ppp:1;
 170                         uint16_t      mpls:1;
 171                         uint16_t      llc_snap:1;
 172                         uint16_t      vlan:1;
 173                         uint16_t      ethernet:1;
 174 #endif
 175                 } __attribute__((__packed__));
 176          } __attribute__((__packed__));
 177          union {
 178                 uint16_t              l3r;      /**< Layer 3 result */
 179                 struct {
 180 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 181                         uint16_t      first_ipv4:1;
 182                         uint16_t      first_ipv6:1;
 183                         uint16_t      gre:1;
 184                         uint16_t      min_enc:1;
 185                         uint16_t      last_ipv4:1;
 186                         uint16_t      last_ipv6:1;
 187                         uint16_t      first_info_err:1;/*0 info, 1 error*/
 188                         uint16_t      first_ip_err_code:5;
 189                         uint16_t      last_info_err:1;  /*0 info, 1 error*/
 190                         uint16_t      last_ip_err_code:3;
 191 #else
 192                         uint16_t      last_ip_err_code:3;
 193                         uint16_t      last_info_err:1;  /*0 info, 1 error*/
 194                         uint16_t      first_ip_err_code:5;
 195                         uint16_t      first_info_err:1;/*0 info, 1 error*/
 196                         uint16_t      last_ipv6:1;
 197                         uint16_t      last_ipv4:1;
 198                         uint16_t      min_enc:1;
 199                         uint16_t      gre:1;
 200                         uint16_t      first_ipv6:1;
 201                         uint16_t      first_ipv4:1;
 202 #endif
 203                 } __attribute__((__packed__));
 204          } __attribute__((__packed__));
 205          union {
 206                 uint8_t               l4r;      /**< Layer 4 result */
 207                 struct{
 208 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
 209                         uint8_t        l4_type:3;
 210                         uint8_t        l4_info_err:1;
 211                         uint8_t        l4_result:4;
 212                                         /* if type IPSec: 1 ESP, 2 AH */
 213 #else
 214                         uint8_t        l4_result:4;
 215                                         /* if type IPSec: 1 ESP, 2 AH */
 216                         uint8_t        l4_info_err:1;
 217                         uint8_t        l4_type:3;
 218 #endif
 219                 } __attribute__((__packed__));
 220          } __attribute__((__packed__));
 221          uint8_t     cplan;              /**< Classification plan id */
 222          uint16_t    nxthdr;             /**< Next Header  */
 223          uint16_t    cksum;              /**< Checksum */
 224          uint32_t    lcv;                /**< LCV */
 225          uint8_t     shim_off[3];        /**< Shim offset */
 226          uint8_t     eth_off;            /**< ETH offset */
 227          uint8_t     llc_snap_off;       /**< LLC_SNAP offset */
 228          uint8_t     vlan_off[2];        /**< VLAN offset */
 229          uint8_t     etype_off;          /**< ETYPE offset */
 230          uint8_t     pppoe_off;          /**< PPP offset */
 231          uint8_t     mpls_off[2];        /**< MPLS offset */
 232          uint8_t     ip_off[2];          /**< IP offset */
 233          uint8_t     gre_off;            /**< GRE offset */
 234          uint8_t     l4_off;             /**< Layer 4 offset */
 235          uint8_t     nxthdr_off;         /**< Parser end point */
 236 } __attribute__ ((__packed__));
 237
 238 /* The structure is the Prepended Data to the Frame which is used by FMAN */
 239 struct annotations_t {
 240         uint8_t reserved[DEFAULT_RX_ICEOF];
 241         struct dpaa_eth_parse_results_t parse;  /**< Pointer to Parsed result*/
 242         uint64_t reserved1;
 243         uint64_t hash;                  /**< Hash Result */
 244 };
 245
 246 #define GET_ANNOTATIONS(_buf) \
 247         (struct annotations_t *)(_buf)
 248
 249 #define GET_RX_PRS(_buf) \
 250         (struct dpaa_eth_parse_results_t *)((uint8_t *)(_buf) + \
 251         DEFAULT_RX_ICEOF)
 252
 253 #define GET_TX_PRS(_buf) \
 254         (struct dpaa_eth_parse_results_t *)((uint8_t *)(_buf) + \
 255         DEFAULT_TX_ICEOF)
 256
 257 uint16_t dpaa_eth_queue_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs);
 258
 259 uint16_t dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs);
 260
 261 uint16_t dpaa_eth_tx_drop_all(void *q  __rte_unused,
 262                               struct rte_mbuf **bufs __rte_unused,
 263                               uint16_t nb_bufs __rte_unused);
 264
 265 struct rte_mbuf *dpaa_eth_sg_to_mbuf(const struct qm_fd *fd, uint32_t ifid);
 266
 267 int dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 268                            struct qm_fd *fd,
 269                            uint32_t bpid);
 270
 271 void dpaa_rx_cb(struct qman_fq **fq,
 272                 struct qm_dqrr_entry **dqrr, void **bufs, int num_bufs);
 273
 274 void dpaa_rx_cb_prepare(struct qm_dqrr_entry *dq, void **bufs);
 275 #endif