diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_rx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 69 |
1 files changed, 39 insertions, 30 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 85e28efcda33..b4d144e67514 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -262,7 +262,7 @@ void mlx4_en_set_num_rx_rings(struct mlx4_en_dev *mdev) int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, struct mlx4_en_rx_ring **pring, - u32 size, u16 stride, int node) + u32 size, u16 stride, int node, int queue_index) { struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_rx_ring *ring; @@ -286,6 +286,9 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, ring->log_stride = ffs(ring->stride) - 1; ring->buf_size = ring->size * ring->stride + TXBB_SIZE; + if (xdp_rxq_info_reg(&ring->xdp_rxq, priv->dev, queue_index) < 0) + goto err_ring; + tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS * sizeof(struct mlx4_en_rx_alloc)); ring->rx_info = vzalloc_node(tmp, node); @@ -293,7 +296,7 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, ring->rx_info = vzalloc(tmp); if (!ring->rx_info) { err = -ENOMEM; - goto err_ring; + goto err_xdp_info; } } @@ -317,6 +320,8 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv, err_info: vfree(ring->rx_info); ring->rx_info = NULL; +err_xdp_info: + xdp_rxq_info_unreg(&ring->xdp_rxq); err_ring: kfree(ring); *pring = NULL; @@ -440,6 +445,7 @@ void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv, lockdep_is_held(&mdev->state_lock)); if (old_prog) bpf_prog_put(old_prog); + xdp_rxq_info_unreg(&ring->xdp_rxq); mlx4_free_hwq_res(mdev->dev, &ring->wqres, size * stride + TXBB_SIZE); vfree(ring->rx_info); ring->rx_info = NULL; @@ -617,6 +623,10 @@ static int get_fixed_ipv6_csum(__wsum hw_checksum, struct sk_buff *skb, return 0; } #endif + +/* We reach this function only after checking that any of + * the (IPv4 | IPv6) bits are set in cqe->status. + */ static int check_csum(struct mlx4_cqe *cqe, struct sk_buff *skb, void *va, netdev_features_t dev_features) { @@ -632,13 +642,11 @@ static int check_csum(struct mlx4_cqe *cqe, struct sk_buff *skb, void *va, hdr += sizeof(struct vlan_hdr); } - if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV4)) - return get_fixed_ipv4_csum(hw_checksum, skb, hdr); #if IS_ENABLED(CONFIG_IPV6) if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV6)) return get_fixed_ipv6_csum(hw_checksum, skb, hdr); #endif - return 0; + return get_fixed_ipv4_csum(hw_checksum, skb, hdr); } int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int budget) @@ -650,6 +658,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud int cq_ring = cq->ring; bool doorbell_pending; struct mlx4_cqe *cqe; + struct xdp_buff xdp; int polled = 0; int index; @@ -664,6 +673,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud /* Protect accesses to: ring->xdp_prog, priv->mac_hash list */ rcu_read_lock(); xdp_prog = rcu_dereference(ring->xdp_prog); + xdp.rxq = &ring->xdp_rxq; doorbell_pending = 0; /* We assume a 1:1 mapping between CQEs and Rx descriptors, so Rx @@ -748,7 +758,6 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud * read bytes but not past the end of the frag. */ if (xdp_prog) { - struct xdp_buff xdp; dma_addr_t dma; void *orig_data; u32 act; @@ -814,33 +823,33 @@ xdp_drop_no_cnt: if (likely(dev->features & NETIF_F_RXCSUM)) { if (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_TCP | MLX4_CQE_STATUS_UDP)) { - if ((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) && - cqe->checksum == cpu_to_be16(0xffff)) { - bool l2_tunnel = (dev->hw_enc_features & NETIF_F_RXCSUM) && - (cqe->vlan_my_qpn & cpu_to_be32(MLX4_CQE_L2_TUNNEL)); - - ip_summed = CHECKSUM_UNNECESSARY; - hash_type = PKT_HASH_TYPE_L4; - if (l2_tunnel) - skb->csum_level = 1; - ring->csum_ok++; - } else { + bool l2_tunnel; + + if (!((cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPOK)) && + cqe->checksum == cpu_to_be16(0xffff))) goto csum_none; - } + + l2_tunnel = (dev->hw_enc_features & NETIF_F_RXCSUM) && + (cqe->vlan_my_qpn & cpu_to_be32(MLX4_CQE_L2_TUNNEL)); + ip_summed = CHECKSUM_UNNECESSARY; + hash_type = PKT_HASH_TYPE_L4; + if (l2_tunnel) + skb->csum_level = 1; + ring->csum_ok++; } else { - if (priv->flags & MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP && - (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 | - MLX4_CQE_STATUS_IPV6))) { - if (check_csum(cqe, skb, va, dev->features)) { - goto csum_none; - } else { - ip_summed = CHECKSUM_COMPLETE; - hash_type = PKT_HASH_TYPE_L3; - ring->csum_complete++; - } - } else { + if (!(priv->flags & MLX4_EN_FLAG_RX_CSUM_NON_TCP_UDP && + (cqe->status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 | +#if IS_ENABLED(CONFIG_IPV6) + MLX4_CQE_STATUS_IPV6)))) +#else + 0)))) +#endif goto csum_none; - } + if (check_csum(cqe, skb, va, dev->features)) + goto csum_none; + ip_summed = CHECKSUM_COMPLETE; + hash_type = PKT_HASH_TYPE_L3; + ring->csum_complete++; } } else { csum_none: |