Add support for these device ops:
- rss_reta_update
- rss_reta_query
- rss_hash_update
- rss_hash_conf_get

Signed-off-by: Mingxia Liu <mingxia....@intel.com>
---
 drivers/common/idpf/idpf_common_device.h   |   1 +
 drivers/common/idpf/idpf_common_virtchnl.c | 119 +++++++++
 drivers/common/idpf/idpf_common_virtchnl.h |   6 +
 drivers/common/idpf/version.map            |   3 +
 drivers/net/idpf/idpf_ethdev.c             | 268 +++++++++++++++++++++
 drivers/net/idpf/idpf_ethdev.h             |   3 +-
 6 files changed, 399 insertions(+), 1 deletion(-)

diff --git a/drivers/common/idpf/idpf_common_device.h 
b/drivers/common/idpf/idpf_common_device.h
index 1d8e7d405a..7abc4d2a3a 100644
--- a/drivers/common/idpf/idpf_common_device.h
+++ b/drivers/common/idpf/idpf_common_device.h
@@ -98,6 +98,7 @@ struct idpf_vport {
        uint32_t *rss_lut;
        uint8_t *rss_key;
        uint64_t rss_hf;
+       uint64_t last_general_rss_hf;
 
        /* MSIX info*/
        struct virtchnl2_queue_vector *qv_map; /* queue vector mapping */
diff --git a/drivers/common/idpf/idpf_common_virtchnl.c 
b/drivers/common/idpf/idpf_common_virtchnl.c
index 40cff34c09..10cfa33704 100644
--- a/drivers/common/idpf/idpf_common_virtchnl.c
+++ b/drivers/common/idpf/idpf_common_virtchnl.c
@@ -218,6 +218,9 @@ idpf_vc_cmd_execute(struct idpf_adapter *adapter, struct 
idpf_cmd_info *args)
        case VIRTCHNL2_OP_ALLOC_VECTORS:
        case VIRTCHNL2_OP_DEALLOC_VECTORS:
        case VIRTCHNL2_OP_GET_STATS:
+       case VIRTCHNL2_OP_GET_RSS_KEY:
+       case VIRTCHNL2_OP_GET_RSS_HASH:
+       case VIRTCHNL2_OP_GET_RSS_LUT:
                /* for init virtchnl ops, need to poll the response */
                err = idpf_vc_one_msg_read(adapter, args->ops, args->out_size, 
args->out_buffer);
                clear_cmd(adapter);
@@ -448,6 +451,48 @@ idpf_vc_rss_key_set(struct idpf_vport *vport)
        return err;
 }
 
+int idpf_vc_rss_key_get(struct idpf_vport *vport)
+{
+       struct idpf_adapter *adapter = vport->adapter;
+       struct virtchnl2_rss_key *rss_key_ret;
+       struct virtchnl2_rss_key rss_key;
+       struct idpf_cmd_info args;
+       int err;
+
+       memset(&rss_key, 0, sizeof(rss_key));
+       rss_key.vport_id = vport->vport_id;
+
+       memset(&args, 0, sizeof(args));
+       args.ops = VIRTCHNL2_OP_GET_RSS_KEY;
+       args.in_args = (uint8_t *)&rss_key;
+       args.in_args_size = sizeof(rss_key);
+       args.out_buffer = adapter->mbx_resp;
+       args.out_size = IDPF_DFLT_MBX_BUF_SIZE;
+
+       err = idpf_vc_cmd_execute(adapter, &args);
+
+       if (!err) {
+               rss_key_ret = (struct virtchnl2_rss_key *)args.out_buffer;
+               if (rss_key_ret->key_len != vport->rss_key_size) {
+                       rte_free(vport->rss_key);
+                       vport->rss_key = NULL;
+                       vport->rss_key_size = RTE_MIN(IDPF_RSS_KEY_LEN,
+                                                     rss_key_ret->key_len);
+                       vport->rss_key = rte_zmalloc("rss_key", 
vport->rss_key_size, 0);
+                       if (!vport->rss_key) {
+                               vport->rss_key_size = 0;
+                               DRV_LOG(ERR, "Failed to allocate RSS key");
+                               return -ENOMEM;
+                       }
+               }
+               rte_memcpy(vport->rss_key, rss_key_ret->key, 
vport->rss_key_size);
+       } else {
+               DRV_LOG(ERR, "Failed to execute command of 
VIRTCHNL2_OP_GET_RSS_KEY");
+       }
+
+       return err;
+}
+
 int
 idpf_vc_rss_lut_set(struct idpf_vport *vport)
 {
@@ -482,6 +527,80 @@ idpf_vc_rss_lut_set(struct idpf_vport *vport)
        return err;
 }
 
+int
+idpf_vc_rss_lut_get(struct idpf_vport *vport)
+{
+       struct idpf_adapter *adapter = vport->adapter;
+       struct virtchnl2_rss_lut *rss_lut_ret;
+       struct virtchnl2_rss_lut rss_lut;
+       struct idpf_cmd_info args;
+       int err;
+
+       memset(&rss_lut, 0, sizeof(rss_lut));
+       rss_lut.vport_id = vport->vport_id;
+
+       memset(&args, 0, sizeof(args));
+       args.ops = VIRTCHNL2_OP_GET_RSS_LUT;
+       args.in_args = (uint8_t *)&rss_lut;
+       args.in_args_size = sizeof(rss_lut);
+       args.out_buffer = adapter->mbx_resp;
+       args.out_size = IDPF_DFLT_MBX_BUF_SIZE;
+
+       err = idpf_vc_cmd_execute(adapter, &args);
+
+       if (!err) {
+               rss_lut_ret = (struct virtchnl2_rss_lut *)args.out_buffer;
+               if (rss_lut_ret->lut_entries != vport->rss_lut_size) {
+                       rte_free(vport->rss_lut);
+                       vport->rss_lut = NULL;
+                       vport->rss_lut = rte_zmalloc("rss_lut",
+                                    sizeof(uint32_t) * 
rss_lut_ret->lut_entries, 0);
+                       if (vport->rss_lut == NULL) {
+                               DRV_LOG(ERR, "Failed to allocate RSS lut");
+                               return -ENOMEM;
+                       }
+               }
+               rte_memcpy(vport->rss_lut, rss_lut_ret->lut, 
rss_lut_ret->lut_entries);
+               vport->rss_lut_size = rss_lut_ret->lut_entries;
+       } else {
+               DRV_LOG(ERR, "Failed to execute command of 
VIRTCHNL2_OP_GET_RSS_LUT");
+       }
+
+       return err;
+}
+
+int
+idpf_vc_rss_hash_get(struct idpf_vport *vport)
+{
+       struct idpf_adapter *adapter = vport->adapter;
+       struct virtchnl2_rss_hash *rss_hash_ret;
+       struct virtchnl2_rss_hash rss_hash;
+       struct idpf_cmd_info args;
+       int err;
+
+       memset(&rss_hash, 0, sizeof(rss_hash));
+       rss_hash.ptype_groups = vport->rss_hf;
+       rss_hash.vport_id = vport->vport_id;
+
+       memset(&args, 0, sizeof(args));
+       args.ops = VIRTCHNL2_OP_GET_RSS_HASH;
+       args.in_args = (uint8_t *)&rss_hash;
+       args.in_args_size = sizeof(rss_hash);
+       args.out_buffer = adapter->mbx_resp;
+       args.out_size = IDPF_DFLT_MBX_BUF_SIZE;
+
+       err = idpf_vc_cmd_execute(adapter, &args);
+
+       if (!err) {
+               rss_hash_ret = (struct virtchnl2_rss_hash *)args.out_buffer;
+               vport->rss_hf = rss_hash_ret->ptype_groups;
+       } else {
+               DRV_LOG(ERR, "Failed to execute command of OP_GET_RSS_HASH");
+       }
+
+       return err;
+}
+
 int
 idpf_vc_rss_hash_set(struct idpf_vport *vport)
 {
diff --git a/drivers/common/idpf/idpf_common_virtchnl.h 
b/drivers/common/idpf/idpf_common_virtchnl.h
index 6b94fd5b8f..205d1a932d 100644
--- a/drivers/common/idpf/idpf_common_virtchnl.h
+++ b/drivers/common/idpf/idpf_common_virtchnl.h
@@ -52,4 +52,10 @@ int idpf_vc_txq_config(struct idpf_vport *vport, struct 
idpf_tx_queue *txq);
 __rte_internal
 int idpf_vc_stats_query(struct idpf_vport *vport,
                        struct virtchnl2_vport_stats **pstats);
+__rte_internal
+int idpf_vc_rss_key_get(struct idpf_vport *vport);
+__rte_internal
+int idpf_vc_rss_lut_get(struct idpf_vport *vport);
+__rte_internal
+int idpf_vc_rss_hash_get(struct idpf_vport *vport);
 #endif /* _IDPF_COMMON_VIRTCHNL_H_ */
diff --git a/drivers/common/idpf/version.map b/drivers/common/idpf/version.map
index e6a02828ba..f6c92e7e57 100644
--- a/drivers/common/idpf/version.map
+++ b/drivers/common/idpf/version.map
@@ -42,8 +42,11 @@ INTERNAL {
        idpf_vc_ptype_info_query;
        idpf_vc_queue_switch;
        idpf_vc_queues_ena_dis;
+       idpf_vc_rss_hash_get;
        idpf_vc_rss_hash_set;
+       idpf_vc_rss_key_get;
        idpf_vc_rss_key_set;
+       idpf_vc_rss_lut_get;
        idpf_vc_rss_lut_set;
        idpf_vc_rxq_config;
        idpf_vc_stats_query;
diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c
index 02ddb0330a..7262109d0a 100644
--- a/drivers/net/idpf/idpf_ethdev.c
+++ b/drivers/net/idpf/idpf_ethdev.c
@@ -29,6 +29,56 @@ static const char * const idpf_valid_args[] = {
        NULL
 };
 
+static const uint64_t idpf_map_hena_rss[] = {
+       [IDPF_HASH_NONF_UNICAST_IPV4_UDP] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_UDP,
+       [IDPF_HASH_NONF_MULTICAST_IPV4_UDP] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_UDP,
+       [IDPF_HASH_NONF_IPV4_UDP] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_UDP,
+       [IDPF_HASH_NONF_IPV4_TCP_SYN_NO_ACK] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_TCP,
+       [IDPF_HASH_NONF_IPV4_TCP] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_TCP,
+       [IDPF_HASH_NONF_IPV4_SCTP] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_SCTP,
+       [IDPF_HASH_NONF_IPV4_OTHER] =
+                       RTE_ETH_RSS_NONFRAG_IPV4_OTHER,
+       [IDPF_HASH_FRAG_IPV4] = RTE_ETH_RSS_FRAG_IPV4,
+
+       /* IPv6 */
+       [IDPF_HASH_NONF_UNICAST_IPV6_UDP] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_UDP,
+       [IDPF_HASH_NONF_MULTICAST_IPV6_UDP] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_UDP,
+       [IDPF_HASH_NONF_IPV6_UDP] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_UDP,
+       [IDPF_HASH_NONF_IPV6_TCP_SYN_NO_ACK] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_TCP,
+       [IDPF_HASH_NONF_IPV6_TCP] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_TCP,
+       [IDPF_HASH_NONF_IPV6_SCTP] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_SCTP,
+       [IDPF_HASH_NONF_IPV6_OTHER] =
+                       RTE_ETH_RSS_NONFRAG_IPV6_OTHER,
+       [IDPF_HASH_FRAG_IPV6] = RTE_ETH_RSS_FRAG_IPV6,
+
+       /* L2 Payload */
+       [IDPF_HASH_L2_PAYLOAD] = RTE_ETH_RSS_L2_PAYLOAD
+};
+
+static const uint64_t idpf_ipv4_rss = RTE_ETH_RSS_NONFRAG_IPV4_UDP |
+                         RTE_ETH_RSS_NONFRAG_IPV4_TCP |
+                         RTE_ETH_RSS_NONFRAG_IPV4_SCTP |
+                         RTE_ETH_RSS_NONFRAG_IPV4_OTHER |
+                         RTE_ETH_RSS_FRAG_IPV4;
+
+static const uint64_t idpf_ipv6_rss = RTE_ETH_RSS_NONFRAG_IPV6_UDP |
+                         RTE_ETH_RSS_NONFRAG_IPV6_TCP |
+                         RTE_ETH_RSS_NONFRAG_IPV6_SCTP |
+                         RTE_ETH_RSS_NONFRAG_IPV6_OTHER |
+                         RTE_ETH_RSS_FRAG_IPV6;
+
 static int
 idpf_dev_link_update(struct rte_eth_dev *dev,
                     __rte_unused int wait_to_complete)
@@ -59,6 +109,9 @@ idpf_dev_info_get(struct rte_eth_dev *dev, struct 
rte_eth_dev_info *dev_info)
        dev_info->max_mtu = vport->max_mtu;
        dev_info->min_mtu = RTE_ETHER_MIN_MTU;
 
+       dev_info->hash_key_size = vport->rss_key_size;
+       dev_info->reta_size = vport->rss_lut_size;
+
        dev_info->flow_type_rss_offloads = IDPF_RSS_OFFLOAD_ALL;
 
        dev_info->rx_offload_capa =
@@ -221,6 +274,36 @@ idpf_dev_stats_reset(struct rte_eth_dev *dev)
        return 0;
 }
 
+static int idpf_config_rss_hf(struct idpf_vport *vport, uint64_t rss_hf)
+{
+       uint64_t hena = 0;
+       uint16_t i;
+
+       /**
+        * RTE_ETH_RSS_IPV4 and RTE_ETH_RSS_IPV6 can be considered as 2
+        * generalizations of all other IPv4 and IPv6 RSS types.
+        */
+       if (rss_hf & RTE_ETH_RSS_IPV4)
+               rss_hf |= idpf_ipv4_rss;
+
+       if (rss_hf & RTE_ETH_RSS_IPV6)
+               rss_hf |= idpf_ipv6_rss;
+
+       for (i = 0; i < RTE_DIM(idpf_map_hena_rss); i++) {
+               if (idpf_map_hena_rss[i] & rss_hf)
+                       hena |= BIT_ULL(i);
+       }
+
+       /**
+        * At present, cp doesn't process the virtual channel msg of rss_hf 
configuration,
+        * tips are given below.
+        */
+       if (hena != vport->rss_hf)
+               PMD_DRV_LOG(WARNING, "Updating RSS Hash Function is not 
supported at present.");
+
+       return 0;
+}
+
 static int
 idpf_init_rss(struct idpf_vport *vport)
 {
@@ -257,6 +340,187 @@ idpf_init_rss(struct idpf_vport *vport)
        return ret;
 }
 
+static int
+idpf_rss_reta_update(struct rte_eth_dev *dev,
+                    struct rte_eth_rss_reta_entry64 *reta_conf,
+                    uint16_t reta_size)
+{
+       struct idpf_vport *vport = dev->data->dev_private;
+       struct idpf_adapter *adapter = vport->adapter;
+       uint16_t idx, shift;
+       int ret = 0;
+       uint16_t i;
+
+       if (adapter->caps.rss_caps == 0 || dev->data->nb_rx_queues == 0) {
+               PMD_DRV_LOG(DEBUG, "RSS is not supported");
+               return -ENOTSUP;
+       }
+
+       if (reta_size != vport->rss_lut_size) {
+               PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
+                                "(%d) doesn't match the number of hardware can 
"
+                                "support (%d)",
+                           reta_size, vport->rss_lut_size);
+               return -EINVAL;
+       }
+
+       for (i = 0; i < reta_size; i++) {
+               idx = i / RTE_ETH_RETA_GROUP_SIZE;
+               shift = i % RTE_ETH_RETA_GROUP_SIZE;
+               if (reta_conf[idx].mask & (1ULL << shift))
+                       vport->rss_lut[i] = reta_conf[idx].reta[shift];
+       }
+
+       /* send virtchnl ops to configure RSS */
+       ret = idpf_vc_rss_lut_set(vport);
+       if (ret)
+               PMD_INIT_LOG(ERR, "Failed to configure RSS lut");
+
+       return ret;
+}
+
+static int
+idpf_rss_reta_query(struct rte_eth_dev *dev,
+                   struct rte_eth_rss_reta_entry64 *reta_conf,
+                   uint16_t reta_size)
+{
+       struct idpf_vport *vport = dev->data->dev_private;
+       struct idpf_adapter *adapter = vport->adapter;
+       uint16_t idx, shift;
+       int ret = 0;
+       uint16_t i;
+
+       if (adapter->caps.rss_caps == 0 || dev->data->nb_rx_queues == 0) {
+               PMD_DRV_LOG(DEBUG, "RSS is not supported");
+               return -ENOTSUP;
+       }
+
+       if (reta_size != vport->rss_lut_size) {
+               PMD_DRV_LOG(ERR, "The size of hash lookup table configured "
+                       "(%d) doesn't match the number of hardware can "
+                       "support (%d)", reta_size, vport->rss_lut_size);
+               return -EINVAL;
+       }
+
+       ret = idpf_vc_rss_lut_get(vport);
+       if (ret) {
+               PMD_DRV_LOG(ERR, "Failed to get RSS LUT");
+               return ret;
+       }
+
+       for (i = 0; i < reta_size; i++) {
+               idx = i / RTE_ETH_RETA_GROUP_SIZE;
+               shift = i % RTE_ETH_RETA_GROUP_SIZE;
+               if (reta_conf[idx].mask & (1ULL << shift))
+                       reta_conf[idx].reta[shift] = vport->rss_lut[i];
+       }
+
+       return 0;
+}
+
+static int
+idpf_rss_hash_update(struct rte_eth_dev *dev,
+                    struct rte_eth_rss_conf *rss_conf)
+{
+       struct idpf_vport *vport = dev->data->dev_private;
+       struct idpf_adapter *adapter = vport->adapter;
+       int ret = 0;
+
+       if (adapter->caps.rss_caps == 0 || dev->data->nb_rx_queues == 0) {
+               PMD_DRV_LOG(DEBUG, "RSS is not supported");
+               return -ENOTSUP;
+       }
+
+       if (!rss_conf->rss_key || rss_conf->rss_key_len == 0) {
+               PMD_DRV_LOG(DEBUG, "No key to be configured");
+               goto skip_rss_key;
+       } else if (rss_conf->rss_key_len != vport->rss_key_size) {
+               PMD_DRV_LOG(ERR, "The size of hash key configured "
+                                "(%d) doesn't match the size of hardware can "
+                                "support (%d)",
+                           rss_conf->rss_key_len,
+                           vport->rss_key_size);
+               return -EINVAL;
+       }
+
+       rte_memcpy(vport->rss_key, rss_conf->rss_key,
+                  vport->rss_key_size);
+       ret = idpf_vc_rss_key_set(vport);
+       if (ret != 0) {
+               PMD_INIT_LOG(ERR, "Failed to configure RSS key");
+               return ret;
+       }
+
+skip_rss_key:
+       ret = idpf_config_rss_hf(vport, rss_conf->rss_hf);
+       if (ret != 0) {
+               PMD_INIT_LOG(ERR, "Failed to configure RSS hash");
+               return ret;
+       }
+
+       return 0;
+}
+
+static uint64_t
+idpf_map_general_rss_hf(uint64_t config_rss_hf, uint64_t last_general_rss_hf)
+{
+       uint64_t valid_rss_hf = 0;
+       uint16_t i;
+
+       for (i = 0; i < RTE_DIM(idpf_map_hena_rss); i++) {
+               uint64_t bit = BIT_ULL(i);
+
+               if (bit & config_rss_hf)
+                       valid_rss_hf |= idpf_map_hena_rss[i];
+       }
+
+       if (valid_rss_hf & idpf_ipv4_rss)
+               valid_rss_hf |= last_general_rss_hf & RTE_ETH_RSS_IPV4;
+
+       if (valid_rss_hf & idpf_ipv6_rss)
+               valid_rss_hf |= last_general_rss_hf & RTE_ETH_RSS_IPV6;
+
+       return valid_rss_hf;
+}
+
+static int
+idpf_rss_hash_conf_get(struct rte_eth_dev *dev,
+                      struct rte_eth_rss_conf *rss_conf)
+{
+       struct idpf_vport *vport = dev->data->dev_private;
+       struct idpf_adapter *adapter = vport->adapter;
+       int ret = 0;
+
+       if (adapter->caps.rss_caps == 0 || dev->data->nb_rx_queues == 0) {
+               PMD_DRV_LOG(DEBUG, "RSS is not supported");
+               return -ENOTSUP;
+       }
+
+       ret = idpf_vc_rss_hash_get(vport);
+       if (ret) {
+               PMD_DRV_LOG(ERR, "Failed to get RSS hf");
+               return ret;
+       }
+
+       rss_conf->rss_hf = idpf_map_general_rss_hf(vport->rss_hf, 
vport->last_general_rss_hf);
+
+       if (!rss_conf->rss_key)
+               return 0;
+
+       ret = idpf_vc_rss_key_get(vport);
+       if (ret) {
+               PMD_DRV_LOG(ERR, "Failed to get RSS key");
+               return ret;
+       }
+
+       if (rss_conf->rss_key_len > vport->rss_key_size)
+               rss_conf->rss_key_len = vport->rss_key_size;
+
+       rte_memcpy(rss_conf->rss_key, vport->rss_key, rss_conf->rss_key_len);
+
+       return 0;
+}
+
 static int
 idpf_dev_configure(struct rte_eth_dev *dev)
 {
@@ -692,6 +956,10 @@ static const struct eth_dev_ops idpf_eth_dev_ops = {
        .dev_supported_ptypes_get       = idpf_dev_supported_ptypes_get,
        .stats_get                      = idpf_dev_stats_get,
        .stats_reset                    = idpf_dev_stats_reset,
+       .reta_update                    = idpf_rss_reta_update,
+       .reta_query                     = idpf_rss_reta_query,
+       .rss_hash_update                = idpf_rss_hash_update,
+       .rss_hash_conf_get              = idpf_rss_hash_conf_get,
 };
 
 static uint16_t
diff --git a/drivers/net/idpf/idpf_ethdev.h b/drivers/net/idpf/idpf_ethdev.h
index d791d402fb..839a2bd82c 100644
--- a/drivers/net/idpf/idpf_ethdev.h
+++ b/drivers/net/idpf/idpf_ethdev.h
@@ -48,7 +48,8 @@
                RTE_ETH_RSS_NONFRAG_IPV6_TCP    |       \
                RTE_ETH_RSS_NONFRAG_IPV6_UDP    |       \
                RTE_ETH_RSS_NONFRAG_IPV6_SCTP   |       \
-               RTE_ETH_RSS_NONFRAG_IPV6_OTHER)
+               RTE_ETH_RSS_NONFRAG_IPV6_OTHER  |       \
+               RTE_ETH_RSS_L2_PAYLOAD)
 
 #define IDPF_ADAPTER_NAME_LEN  (PCI_PRI_STR_SIZE + 1)
 
-- 
2.25.1

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