drivers/net/dpaa2/dpaa2_mux.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2018-2019 NXP
   3  */
   4
   5 #include <sys/queue.h>
   6 #include <stdio.h>
   7 #include <errno.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <stdarg.h>
  12
  13 #include <rte_ethdev.h>
  14 #include <rte_log.h>
  15 #include <rte_malloc.h>
  16 #include <rte_flow_driver.h>
  17 #include <rte_tailq.h>
  18
  19 #include <rte_fslmc.h>
  20 #include <fsl_dpdmux.h>
  21 #include <fsl_dpkg.h>
  22
  23 #include <dpaa2_ethdev.h>
  24 #include <dpaa2_pmd_logs.h>
  25
  26 struct dpaa2_dpdmux_dev {
  27         TAILQ_ENTRY(dpaa2_dpdmux_dev) next;
  28                 /**< Pointer to Next device instance */
  29         struct fsl_mc_io dpdmux;  /** handle to DPDMUX portal object */
  30         uint16_t token;
  31         uint32_t dpdmux_id; /*HW ID for DPDMUX object */
  32         uint8_t num_ifs;   /* Number of interfaces in DPDMUX */
  33 };
  34
  35 struct rte_flow {
  36         struct dpdmux_rule_cfg rule;
  37 };
  38
  39 TAILQ_HEAD(dpdmux_dev_list, dpaa2_dpdmux_dev);
  40 static struct dpdmux_dev_list dpdmux_dev_list =
  41         TAILQ_HEAD_INITIALIZER(dpdmux_dev_list); /*!< DPDMUX device list */
  42
  43 static struct dpaa2_dpdmux_dev *get_dpdmux_from_id(uint32_t dpdmux_id)
  44 {
  45         struct dpaa2_dpdmux_dev *dpdmux_dev = NULL;
  46
  47         /* Get DPBP dev handle from list using index */
  48         TAILQ_FOREACH(dpdmux_dev, &dpdmux_dev_list, next) {
  49                 if (dpdmux_dev->dpdmux_id == dpdmux_id)
  50                         break;
  51         }
  52
  53         return dpdmux_dev;
  54 }
  55
  56 struct rte_flow *
  57 rte_pmd_dpaa2_mux_flow_create(uint32_t dpdmux_id,
  58                               struct rte_flow_item *pattern[],
  59                               struct rte_flow_action *actions[])
  60 {
  61         struct dpaa2_dpdmux_dev *dpdmux_dev;
  62         struct dpkg_profile_cfg kg_cfg;
  63         const struct rte_flow_action_vf *vf_conf;
  64         struct dpdmux_cls_action dpdmux_action;
  65         struct rte_flow *flow = NULL;
  66         void *key_iova, *mask_iova, *key_cfg_iova = NULL;
  67         uint8_t key_size = 0;
  68         int ret;
  69
  70         /* Find the DPDMUX from dpdmux_id in our list */
  71         dpdmux_dev = get_dpdmux_from_id(dpdmux_id);
  72         if (!dpdmux_dev) {
  73                 DPAA2_PMD_ERR("Invalid dpdmux_id: %d", dpdmux_id);
  74                 return NULL;
  75         }
  76
  77         key_cfg_iova = rte_zmalloc(NULL, DIST_PARAM_IOVA_SIZE,
  78                                    RTE_CACHE_LINE_SIZE);
  79         if (!key_cfg_iova) {
  80                 DPAA2_PMD_ERR("Unable to allocate flow-dist parameters");
  81                 return NULL;
  82         }
  83         flow = rte_zmalloc(NULL, sizeof(struct rte_flow) +
  84                            (2 * DIST_PARAM_IOVA_SIZE), RTE_CACHE_LINE_SIZE);
  85         if (!flow) {
  86                 DPAA2_PMD_ERR(
  87                         "Memory allocation failure for rule configration\n");
  88                 goto creation_error;
  89         }
  90         key_iova = (void *)((size_t)flow + sizeof(struct rte_flow));
  91         mask_iova = (void *)((size_t)key_iova + DIST_PARAM_IOVA_SIZE);
  92
  93         /* Currently taking only IP protocol as an extract type.
  94          * This can be exended to other fields using pattern->type.
  95          */
  96         memset(&kg_cfg, 0, sizeof(struct dpkg_profile_cfg));
  97
  98         switch (pattern[0]->type) {
  99         case RTE_FLOW_ITEM_TYPE_IPV4:
 100         {
 101                 const struct rte_flow_item_ipv4 *spec;
 102                 kg_cfg.extracts[0].extract.from_hdr.prot = NET_PROT_IP;
 103                 kg_cfg.extracts[0].extract.from_hdr.field = NH_FLD_IP_PROTO;
 104                 kg_cfg.extracts[0].type = DPKG_EXTRACT_FROM_HDR;
 105                 kg_cfg.extracts[0].extract.from_hdr.type = DPKG_FULL_FIELD;
 106                 kg_cfg.num_extracts = 1;
 107
 108                 spec = (const struct rte_flow_item_ipv4 *)pattern[0]->spec;
 109                 memcpy(key_iova, (const void *)(&spec->hdr.next_proto_id),
 110                         sizeof(uint8_t));
 111                 memcpy(mask_iova, pattern[0]->mask, sizeof(uint8_t));
 112                 key_size = sizeof(uint8_t);
 113         }
 114         break;
 115
 116         case RTE_FLOW_ITEM_TYPE_ETH:
 117         {
 118                 const struct rte_flow_item_eth *spec;
 119                 uint16_t eth_type;
 120                 kg_cfg.extracts[0].extract.from_hdr.prot = NET_PROT_ETH;
 121                 kg_cfg.extracts[0].extract.from_hdr.field = NH_FLD_ETH_TYPE;
 122                 kg_cfg.extracts[0].type = DPKG_EXTRACT_FROM_HDR;
 123                 kg_cfg.extracts[0].extract.from_hdr.type = DPKG_FULL_FIELD;
 124                 kg_cfg.num_extracts = 1;
 125
 126                 spec = (const struct rte_flow_item_eth *)pattern[0]->spec;
 127                 eth_type = rte_constant_bswap16(spec->type);
 128                 memcpy((void *)key_iova, (const void *)&eth_type,
 129                                                         sizeof(rte_be16_t));
 130                 memcpy(mask_iova, pattern[0]->mask, sizeof(uint16_t));
 131                 key_size = sizeof(uint16_t);
 132         }
 133         break;
 134
 135         default:
 136                 DPAA2_PMD_ERR("Not supported pattern type: %d",
 137                                 pattern[0]->type);
 138                 goto creation_error;
 139         }
 140
 141         ret = dpkg_prepare_key_cfg(&kg_cfg, key_cfg_iova);
 142         if (ret) {
 143                 DPAA2_PMD_ERR("dpkg_prepare_key_cfg failed: err(%d)", ret);
 144                 goto creation_error;
 145         }
 146
 147         ret = dpdmux_set_custom_key(&dpdmux_dev->dpdmux, CMD_PRI_LOW,
 148                                     dpdmux_dev->token,
 149                         (uint64_t)(DPAA2_VADDR_TO_IOVA(key_cfg_iova)));
 150         if (ret) {
 151                 DPAA2_PMD_ERR("dpdmux_set_custom_key failed: err(%d)", ret);
 152                 goto creation_error;
 153         }
 154
 155         /* As now our key extract parameters are set, let us configure
 156          * the rule.
 157          */
 158         flow->rule.key_iova = (uint64_t)(DPAA2_VADDR_TO_IOVA(key_iova));
 159         flow->rule.mask_iova = (uint64_t)(DPAA2_VADDR_TO_IOVA(mask_iova));
 160         flow->rule.key_size = key_size;
 161
 162         vf_conf = (const struct rte_flow_action_vf *)(actions[0]->conf);
 163         if (vf_conf->id == 0 || vf_conf->id > dpdmux_dev->num_ifs) {
 164                 DPAA2_PMD_ERR("Invalid destination id\n");
 165                 goto creation_error;
 166         }
 167         dpdmux_action.dest_if = vf_conf->id;
 168
 169         ret = dpdmux_add_custom_cls_entry(&dpdmux_dev->dpdmux, CMD_PRI_LOW,
 170                                           dpdmux_dev->token, &flow->rule,
 171                                           &dpdmux_action);
 172         if (ret) {
 173                 DPAA2_PMD_ERR("dpdmux_add_custom_cls_entry failed: err(%d)",
 174                               ret);
 175                 goto creation_error;
 176         }
 177
 178         return flow;
 179
 180 creation_error:
 181         rte_free((void *)key_cfg_iova);
 182         rte_free((void *)flow);
 183         return NULL;
 184 }
 185
 186 static int
 187 dpaa2_create_dpdmux_device(int vdev_fd __rte_unused,
 188                            struct vfio_device_info *obj_info __rte_unused,
 189                            int dpdmux_id)
 190 {
 191         struct dpaa2_dpdmux_dev *dpdmux_dev;
 192         struct dpdmux_attr attr;
 193         int ret;
 194
 195         PMD_INIT_FUNC_TRACE();
 196
 197         /* Allocate DPAA2 dpdmux handle */
 198         dpdmux_dev = rte_malloc(NULL, sizeof(struct dpaa2_dpdmux_dev), 0);
 199         if (!dpdmux_dev) {
 200                 DPAA2_PMD_ERR("Memory allocation failed for DPDMUX Device");
 201                 return -1;
 202         }
 203
 204         /* Open the dpdmux object */
 205         dpdmux_dev->dpdmux.regs = rte_mcp_ptr_list[MC_PORTAL_INDEX];
 206         ret = dpdmux_open(&dpdmux_dev->dpdmux, CMD_PRI_LOW, dpdmux_id,
 207                           &dpdmux_dev->token);
 208         if (ret) {
 209                 DPAA2_PMD_ERR("Unable to open dpdmux object: err(%d)", ret);
 210                 goto init_err;
 211         }
 212
 213         ret = dpdmux_get_attributes(&dpdmux_dev->dpdmux, CMD_PRI_LOW,
 214                                     dpdmux_dev->token, &attr);
 215         if (ret) {
 216                 DPAA2_PMD_ERR("Unable to get dpdmux attr: err(%d)", ret);
 217                 goto init_err;
 218         }
 219
 220         ret = dpdmux_if_set_default(&dpdmux_dev->dpdmux, CMD_PRI_LOW,
 221                                     dpdmux_dev->token, 1);
 222         if (ret) {
 223                 DPAA2_PMD_ERR("setting default interface failed in %s",
 224                               __func__);
 225                 goto init_err;
 226         }
 227
 228         dpdmux_dev->dpdmux_id = dpdmux_id;
 229         dpdmux_dev->num_ifs = attr.num_ifs;
 230
 231         TAILQ_INSERT_TAIL(&dpdmux_dev_list, dpdmux_dev, next);
 232
 233         return 0;
 234
 235 init_err:
 236         if (dpdmux_dev)
 237                 rte_free(dpdmux_dev);
 238
 239         return -1;
 240 }
 241
 242 static struct rte_dpaa2_object rte_dpaa2_dpdmux_obj = {
 243         .dev_type = DPAA2_MUX,
 244         .create = dpaa2_create_dpdmux_device,
 245 };
 246
 247 RTE_PMD_REGISTER_DPAA2_OBJECT(dpdmux, rte_dpaa2_dpdmux_obj);