In short, same comments as the TX patch, more below.
On Wed, Jan 03, 2018 at 09:16:17AM +0200, Shahaf Shuler wrote:
> Ethdev Rx offloads API has changed since:
>
> commit ce17eddefc20 ("ethdev: introduce Rx queue offloads API")
>
> This commit support the new Rx offloads API.
>
> Signed-off-by: Shahaf Shuler <shah...@mellanox.com>
> ---
> drivers/net/mlx4/mlx4_ethdev.c | 10 ++---
> drivers/net/mlx4/mlx4_flow.c | 5 ++-
> drivers/net/mlx4/mlx4_rxq.c | 78 ++++++++++++++++++++++++++++++++++---
> drivers/net/mlx4/mlx4_rxtx.h | 2 +
> 4 files changed, 82 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/net/mlx4/mlx4_ethdev.c b/drivers/net/mlx4/mlx4_ethdev.c
> index 63e00b1da..39a23ee7b 100644
> --- a/drivers/net/mlx4/mlx4_ethdev.c
> +++ b/drivers/net/mlx4/mlx4_ethdev.c
> @@ -766,13 +766,11 @@ mlx4_dev_infos_get(struct rte_eth_dev *dev, struct
> rte_eth_dev_info *info)
> info->max_rx_queues = max;
> info->max_tx_queues = max;
> info->max_mac_addrs = RTE_DIM(priv->mac);
> - info->rx_offload_capa = 0;
> info->tx_offload_capa = mlx4_priv_get_tx_port_offloads(priv);
> - if (priv->hw_csum) {
> - info->rx_offload_capa |= (DEV_RX_OFFLOAD_IPV4_CKSUM |
> - DEV_RX_OFFLOAD_UDP_CKSUM |
> - DEV_RX_OFFLOAD_TCP_CKSUM);
> - }
> + info->rx_queue_offload_capa =
> + mlx4_priv_get_rx_queue_offloads(priv);
> + info->rx_offload_capa = (mlx4_priv_get_rx_port_offloads(priv) |
> + info->rx_queue_offload_capa);
> if (mlx4_get_ifname(priv, &ifname) == 0)
> info->if_index = if_nametoindex(ifname);
> info->hash_key_size = MLX4_RSS_HASH_KEY_SIZE;
> diff --git a/drivers/net/mlx4/mlx4_flow.c b/drivers/net/mlx4/mlx4_flow.c
> index 69025da42..96a6a6fa7 100644
> --- a/drivers/net/mlx4/mlx4_flow.c
> +++ b/drivers/net/mlx4/mlx4_flow.c
> @@ -1232,7 +1232,7 @@ mlx4_flow_internal_next_vlan(struct priv *priv,
> uint16_t vlan)
> * - MAC flow rules are generated from @p dev->data->mac_addrs
> * (@p priv->mac array).
> * - An additional flow rule for Ethernet broadcasts is also generated.
> - * - All these are per-VLAN if @p dev->data->dev_conf.rxmode.hw_vlan_filter
> + * - All these are per-VLAN if @p DEV_RX_OFFLOAD_VLAN_FILTER
> * is enabled and VLAN filters are configured.
> *
> * @param priv
> @@ -1300,7 +1300,8 @@ mlx4_flow_internal(struct priv *priv, struct
> rte_flow_error *error)
> };
> struct ether_addr *rule_mac = ð_spec.dst;
> rte_be16_t *rule_vlan =
> - priv->dev->data->dev_conf.rxmode.hw_vlan_filter &&
> + (priv->dev->data->dev_conf.rxmode.offloads &
> + DEV_RX_OFFLOAD_VLAN_FILTER) &&
> !priv->dev->data->promiscuous ?
> &vlan_spec.tci :
> NULL;
> diff --git a/drivers/net/mlx4/mlx4_rxq.c b/drivers/net/mlx4/mlx4_rxq.c
> index 53313c56f..0cad28269 100644
> --- a/drivers/net/mlx4/mlx4_rxq.c
> +++ b/drivers/net/mlx4/mlx4_rxq.c
> @@ -663,6 +663,64 @@ mlx4_rxq_detach(struct rxq *rxq)
> }
>
> /**
> + * Returns the per-queue supported offloads.
> + *
> + * @param priv
> + * Pointer to private structure.
> + *
> + * @return
> + * Supported Tx offloads.
> + */
> +uint64_t
> +mlx4_priv_get_rx_queue_offloads(struct priv *priv)
You should drop "priv", e.g.:
mlx4_get_rx_queue_offloads()
> +{
> + uint64_t offloads = DEV_RX_OFFLOAD_SCATTER;
> +
> + if (priv->hw_csum)
> + offloads |= DEV_RX_OFFLOAD_CHECKSUM;
> + return offloads;
> +}
> +
> +/**
> + * Returns the per-port supported offloads.
> + *
> + * @param priv
> + * Pointer to private strucute.
strucute -> structure
> + *
> + * @return
> + * Supported Rx offloads.
> + */
> +uint64_t
> +mlx4_priv_get_rx_port_offloads(struct priv *priv __rte_unused)
Same comment about "priv".
Using (void) instead of __rte_unused for consistency with the rest of the
PMD code is fine by the way. A subsequent patch can convert them all at once
to __rte_unused if needed.
> +{
> + uint64_t offloads = DEV_RX_OFFLOAD_VLAN_FILTER;
> +
> + return offloads;
> +}
> +
> +/**
> + * Checks if the per-queue offload configuration is valid.
> + *
> + * @param priv
> + * Pointer to private structure.
> + * @param offloads
> + * Per-queue offloads configuration.
> + *
> + * @return
> + * 1 if the configuration is valid, 0 otherwise.
Better described as "Nonzero when configuration is valid."
> + */
> +static int
> +priv_is_rx_queue_offloads_allowed(struct priv *priv, uint64_t offloads)
Ditto, with the same suggestion as for TX:
[mlx4_]check_rx_queue_offloads()
> +{
> + uint64_t port_offloads = priv->dev->data->dev_conf.rxmode.offloads;
> + uint64_t port_supp_offloads = mlx4_priv_get_rx_port_offloads(priv);
> +
> + if (((port_offloads ^ offloads) & port_supp_offloads))
> + return 0;
> + return 1;
> +}
Same comment and questions regarding this condition as for the TX patch
(mandatory/requested/supported).
> +
> +/**
> * DPDK callback to configure a Rx queue.
> *
> * @param dev
> @@ -707,6 +765,16 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t
> idx, uint16_t desc,
> (void)conf; /* Thresholds configuration (ignored). */
> DEBUG("%p: configuring queue %u for %u descriptors",
> (void *)dev, idx, desc);
> + if (!priv_is_rx_queue_offloads_allowed(priv, conf->offloads)) {
> + rte_errno = ENOTSUP;
> + ERROR("%p: Rx queue offloads 0x%lx don't match port "
> + "offloads 0x%lx or supported offloads 0x%lx",
> + (void *)dev, conf->offloads,
> + dev->data->dev_conf.rxmode.offloads,
> + (mlx4_priv_get_rx_port_offloads(priv) |
> + mlx4_priv_get_rx_queue_offloads(priv)));
Should use "%" PRIx64 instead of "%lx".
> + return -rte_errno;
> + }
> if (idx >= dev->data->nb_rx_queues) {
> rte_errno = EOVERFLOW;
> ERROR("%p: queue index out of range (%u >= %u)",
> @@ -746,10 +814,10 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t
> idx, uint16_t desc,
> .elts_n = rte_log2_u32(desc),
> .elts = elts,
> /* Toggle Rx checksum offload if hardware supports it. */
> - .csum = (priv->hw_csum &&
> - dev->data->dev_conf.rxmode.hw_ip_checksum),
> - .csum_l2tun = (priv->hw_csum_l2tun &&
> - dev->data->dev_conf.rxmode.hw_ip_checksum),
> + .csum = priv->hw_csum &&
> + (conf->offloads & DEV_RX_OFFLOAD_CHECKSUM),
> + .csum_l2tun = priv->hw_csum_l2tun &&
> + (conf->offloads & DEV_RX_OFFLOAD_CHECKSUM),
> .l2tun_offload = priv->hw_csum_l2tun,
> .stats = {
> .idx = idx,
> @@ -761,7 +829,7 @@ mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t
> idx, uint16_t desc,
> if (dev->data->dev_conf.rxmode.max_rx_pkt_len <=
> (mb_len - RTE_PKTMBUF_HEADROOM)) {
> ;
> - } else if (dev->data->dev_conf.rxmode.enable_scatter) {
> + } else if (conf->offloads & DEV_RX_OFFLOAD_SCATTER) {
> uint32_t size =
> RTE_PKTMBUF_HEADROOM +
> dev->data->dev_conf.rxmode.max_rx_pkt_len;
> diff --git a/drivers/net/mlx4/mlx4_rxtx.h b/drivers/net/mlx4/mlx4_rxtx.h
> index 91971c4fb..bcb76ee27 100644
> --- a/drivers/net/mlx4/mlx4_rxtx.h
> +++ b/drivers/net/mlx4/mlx4_rxtx.h
> @@ -166,6 +166,8 @@ int mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t
> idx,
> const struct rte_eth_rxconf *conf,
> struct rte_mempool *mp);
> void mlx4_rx_queue_release(void *dpdk_rxq);
> +uint64_t mlx4_priv_get_rx_port_offloads(struct priv *priv);
> +uint64_t mlx4_priv_get_rx_queue_offloads(struct priv *priv);
Declarations should come in the same order as in mlx4_rxq.c.
>
> /* mlx4_rxtx.c */
>
> --
> 2.12.0
>
--
Adrien Mazarguil
6WIND
