[dpdk-dev] [PATCH v2 07/15] net/mlx5: support tunnel RSS level
Nélio Laranjeiro
nelio.laranjeiro at 6wind.com
Wed Apr 11 10:55:29 CEST 2018
On Tue, Apr 10, 2018 at 09:34:07PM +0800, Xueming Li wrote:
> Tunnel RSS level of flow RSS action offers user a choice to do RSS hash
> calculation on inner or outer RSS fields. Testpmd flow command examples:
>
> GRE flow inner RSS:
> flow create 0 ingress pattern eth / ipv4 proto is 47 / gre / end
> actions rss queues 1 2 end level 1 / end
>
> GRE tunnel flow outer RSS:
> flow create 0 ingress pattern eth / ipv4 proto is 47 / gre / end
> actions rss queues 1 2 end level 0 / end
>
> Signed-off-by: Xueming Li <xuemingl at mellanox.com>
> ---
> drivers/net/mlx5/Makefile | 2 +-
> drivers/net/mlx5/mlx5_flow.c | 249 ++++++++++++++++++++++++++++++-------------
> drivers/net/mlx5/mlx5_glue.c | 16 +++
> drivers/net/mlx5/mlx5_glue.h | 8 ++
> drivers/net/mlx5/mlx5_rxq.c | 46 +++++++-
> drivers/net/mlx5/mlx5_rxtx.h | 5 +-
> 6 files changed, 246 insertions(+), 80 deletions(-)
>
> diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
> index ae118ad33..f9a6c460b 100644
> --- a/drivers/net/mlx5/Makefile
> +++ b/drivers/net/mlx5/Makefile
> @@ -35,7 +35,7 @@ include $(RTE_SDK)/mk/rte.vars.mk
> LIB = librte_pmd_mlx5.a
> LIB_GLUE = $(LIB_GLUE_BASE).$(LIB_GLUE_VERSION)
> LIB_GLUE_BASE = librte_pmd_mlx5_glue.so
> -LIB_GLUE_VERSION = 18.02.0
> +LIB_GLUE_VERSION = 18.05.0
>
> # Sources.
> SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5.c
> diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
> index 64658bc0e..66c7d7993 100644
> --- a/drivers/net/mlx5/mlx5_flow.c
> +++ b/drivers/net/mlx5/mlx5_flow.c
> @@ -113,6 +113,7 @@ enum hash_rxq_type {
> HASH_RXQ_UDPV6,
> HASH_RXQ_IPV6,
> HASH_RXQ_ETH,
> + HASH_RXQ_TUNNEL,
> };
>
> /* Initialization data for hash RX queue. */
> @@ -451,6 +452,7 @@ struct mlx5_flow_parse {
> uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */
> uint8_t rss_key[40]; /**< copy of the RSS key. */
> enum hash_rxq_type layer; /**< Last pattern layer detected. */
> + enum hash_rxq_type out_layer; /**< Last outer pattern layer detected. */
> uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */
> struct ibv_counter_set *cs; /**< Holds the counter set for the rule */
> struct {
> @@ -458,6 +460,7 @@ struct mlx5_flow_parse {
> /**< Pointer to Verbs attributes. */
> unsigned int offset;
> /**< Current position or total size of the attribute. */
> + uint64_t hash_fields; /**< Verbs hash fields. */
> } queue[RTE_DIM(hash_rxq_init)];
> };
>
> @@ -698,7 +701,8 @@ mlx5_flow_convert_actions(struct rte_eth_dev *dev,
> " function is Toeplitz");
> return -rte_errno;
> }
> - if (rss->level) {
> +#ifndef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
> + if (parser->rss_conf.level > 0) {
According to Adrien's API level 0 means do whatever you want and 1 means outer.
This is removing the outer RSS support.
> rte_flow_error_set(error, EINVAL,
> RTE_FLOW_ERROR_TYPE_ACTION,
> actions,
> @@ -706,6 +710,15 @@ mlx5_flow_convert_actions(struct rte_eth_dev *dev,
> " level is not supported");
> return -rte_errno;
> }
> +#endif
> + if (parser->rss_conf.level > 1) {
> + rte_flow_error_set(error, EINVAL,
> + RTE_FLOW_ERROR_TYPE_ACTION,
> + actions,
> + "RSS encapsulation level"
> + " > 1 is not supported");
> + return -rte_errno;
> + }
Seems the levels are wrongly used.
> if (rss->types & MLX5_RSS_HF_MASK) {
> rte_flow_error_set(error, EINVAL,
> RTE_FLOW_ERROR_TYPE_ACTION,
> @@ -756,7 +769,7 @@ mlx5_flow_convert_actions(struct rte_eth_dev *dev,
> }
> parser->rss_conf = (struct rte_flow_action_rss){
> .func = RTE_ETH_HASH_FUNCTION_DEFAULT,
> - .level = 0,
> + .level = rss->level,
> .types = rss->types,
> .key_len = rss_key_len,
> .queue_num = rss->queue_num,
> @@ -842,11 +855,12 @@ mlx5_flow_convert_actions(struct rte_eth_dev *dev,
> * 0 on success, a negative errno value otherwise and rte_errno is set.
> */
> static int
> -mlx5_flow_convert_items_validate(struct rte_eth_dev *dev __rte_unused,
> +mlx5_flow_convert_items_validate(struct rte_eth_dev *dev,
> const struct rte_flow_item items[],
> struct rte_flow_error *error,
> struct mlx5_flow_parse *parser)
> {
> + struct priv *priv = dev->data->dev_private;
> const struct mlx5_flow_items *cur_item = mlx5_flow_items;
> unsigned int i;
> int ret = 0;
> @@ -886,6 +900,14 @@ mlx5_flow_convert_items_validate(struct rte_eth_dev *dev __rte_unused,
> " tunnel encapsulations.");
> return -rte_errno;
> }
> + if (!priv->config.tunnel_en &&
> + parser->rss_conf.level) {
> + rte_flow_error_set(error, ENOTSUP,
> + RTE_FLOW_ERROR_TYPE_ITEM,
> + items,
> + "Tunnel offloading not enabled");
I would suggest "RSS on tunnel is not supported".
> + return -rte_errno;
> + }
> parser->inner = IBV_FLOW_SPEC_INNER;
> parser->tunnel = flow_ptype[items->type];
> }
> @@ -993,7 +1015,11 @@ static void
> mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
> {
> unsigned int i;
> + uint32_t inner = parser->inner;
>
> + /* Don't create extra flows for outer RSS. */
> + if (parser->tunnel && !parser->rss_conf.level)
> + return;
> /* Remove any other flow not matching the pattern. */
> if (parser->rss_conf.queue_num == 1 && !parser->rss_conf.types) {
> for (i = 0; i != hash_rxq_init_n; ++i) {
> @@ -1014,23 +1040,25 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
> struct ibv_flow_spec_ipv4_ext ipv4;
> struct ibv_flow_spec_ipv6 ipv6;
> struct ibv_flow_spec_tcp_udp udp_tcp;
> + struct ibv_flow_spec_eth eth;
> } specs;
> void *dst;
> uint16_t size;
>
> if (i == parser->layer)
> continue;
> - if (parser->layer == HASH_RXQ_ETH) {
> + if (parser->layer == HASH_RXQ_ETH ||
> + parser->layer == HASH_RXQ_TUNNEL) {
> if (hash_rxq_init[i].ip_version == MLX5_IPV4) {
> size = sizeof(struct ibv_flow_spec_ipv4_ext);
> specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){
> - .type = IBV_FLOW_SPEC_IPV4_EXT,
> + .type = inner | IBV_FLOW_SPEC_IPV4_EXT,
> .size = size,
> };
> } else {
> size = sizeof(struct ibv_flow_spec_ipv6);
> specs.ipv6 = (struct ibv_flow_spec_ipv6){
> - .type = IBV_FLOW_SPEC_IPV6,
> + .type = inner | IBV_FLOW_SPEC_IPV6,
> .size = size,
> };
> }
> @@ -1047,7 +1075,7 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
> (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) {
> size = sizeof(struct ibv_flow_spec_tcp_udp);
> specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) {
> - .type = ((i == HASH_RXQ_UDPV4 ||
> + .type = inner | ((i == HASH_RXQ_UDPV4 ||
> i == HASH_RXQ_UDPV6) ?
> IBV_FLOW_SPEC_UDP :
> IBV_FLOW_SPEC_TCP),
> @@ -1068,6 +1096,8 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
> /**
> * Update flows according to pattern and RSS hash fields.
> *
> + * @param dev
> + * Pointer to Ethernet device.
> * @param[in, out] parser
> * Internal parser structure.
> *
> @@ -1075,20 +1105,63 @@ mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser)
> * 0 on success, a negative errno value otherwise and rte_errno is set.
> */
> static int
> -mlx5_flow_convert_rss(struct mlx5_flow_parse *parser)
> +mlx5_flow_convert_rss(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser)
> {
> - const unsigned int ipv4 =
> + unsigned int ipv4 =
> hash_rxq_init[parser->layer].ip_version == MLX5_IPV4;
> const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6;
> const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
> const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4;
> const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4;
> - const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
> + enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
> unsigned int i;
> + int found = 0;
>
> - if (parser->layer == HASH_RXQ_ETH)
> + /*
> + * Outer RSS.
> + * HASH_RXQ_ETH is the only rule since tunnel packet match this
> + * rule must match outer pattern.
> + */
> + if (parser->tunnel && !parser->rss_conf.level) {
> + /* Remove flows other than default. */
> + for (i = 0; i != hash_rxq_init_n - 1; ++i) {
> + rte_free(parser->queue[i].ibv_attr);
> + parser->queue[i].ibv_attr = NULL;
> + }
> + ipv4 = hash_rxq_init[parser->out_layer].ip_version == MLX5_IPV4;
> + ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6;
> + if (hash_rxq_init[parser->out_layer].dpdk_rss_hf &
> + parser->rss_conf.types) {
> + parser->queue[HASH_RXQ_ETH].hash_fields =
> + hash_rxq_init[parser->out_layer].hash_fields;
> + } else if (ip && (hash_rxq_init[ip].dpdk_rss_hf &
> + parser->rss_conf.types)) {
> + parser->queue[HASH_RXQ_ETH].hash_fields =
> + hash_rxq_init[ip].hash_fields;
> + } else if (parser->rss_conf.types) {
> + DRV_LOG(WARNING,
> + "port %u rss outer hash function doesn't match"
> + " pattern", dev->data->port_id);
Hash function, what do you mean ? It seems to be the layers on the ones
the RSS is configured which does not match the Pattern.
Sincerely, I see such warning happening I will fully doubt on the fact
the rule has been taken and applied.
"port 0 rss outer hash function doesn't match pattern" --> what will
happen to the packets matching such flow? Will they be dropped?
This is not helping at all, so please remove it.
> + }
> + return 0;
> + }
> + if (parser->layer == HASH_RXQ_ETH || parser->layer == HASH_RXQ_TUNNEL) {
> + /* Remove unused flows according to hash function. */
> + for (i = 0; i != hash_rxq_init_n - 1; ++i) {
> + if (!parser->queue[i].ibv_attr)
> + continue;
> + if (hash_rxq_init[i].dpdk_rss_hf &
> + parser->rss_conf.types) {
> + parser->queue[i].hash_fields =
> + hash_rxq_init[i].hash_fields;
> + continue;
> + }
> + rte_free(parser->queue[i].ibv_attr);
> + parser->queue[i].ibv_attr = NULL;
> + }
> return 0;
> - /* This layer becomes useless as the pattern define under layers. */
> + }
> + /* Remove ETH layer flow. */
> rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr);
> parser->queue[HASH_RXQ_ETH].ibv_attr = NULL;
> /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */
> @@ -1098,9 +1171,52 @@ mlx5_flow_convert_rss(struct mlx5_flow_parse *parser)
> rte_free(parser->queue[i].ibv_attr);
> parser->queue[i].ibv_attr = NULL;
> }
> - /* Remove impossible flow according to the RSS configuration. */
> - if (hash_rxq_init[parser->layer].dpdk_rss_hf &
> - parser->rss_conf.types) {
> + /*
> + * Keep L4 flows as IP pattern has to support L4 RSS.
> + * Otherwise, only keep the flow that match the pattern.
> + */
This comment is not clear, please re-word it.
> + if (parser->layer != ip) {
> + /* Only keep the flow that match the pattern. */
> + for (i = hmin; i != (hmax + 1); ++i) {
> + if (i == parser->layer)
> + continue;
> + rte_free(parser->queue[i].ibv_attr);
> + parser->queue[i].ibv_attr = NULL;
> + }
> + }
> + if (parser->rss_conf.types) {
> + /* Remove impossible flow according to the RSS configuration. */
> + for (i = hmin; i != (hmax + 1); ++i) {
> + if (!parser->queue[i].ibv_attr)
> + continue;
> + if (parser->rss_conf.types &
> + hash_rxq_init[i].dpdk_rss_hf) {
> + parser->queue[i].hash_fields =
> + hash_rxq_init[i].hash_fields;
> + found = 1;
> + continue;
> + }
> + /* L4 flow could be used for L3 RSS. */
> + if (i == parser->layer && i < ip &&
> + (hash_rxq_init[ip].dpdk_rss_hf &
> + parser->rss_conf.types)) {
> + parser->queue[i].hash_fields =
> + hash_rxq_init[ip].hash_fields;
> + found = 1;
> + continue;
> + }
> + /* L3 flow and L4 hash: non-rss L3 flow. */
> + if (i == parser->layer && i == ip && found)
> + /* IP pattern and L4 HF. */
> + continue;
> + rte_free(parser->queue[i].ibv_attr);
> + parser->queue[i].ibv_attr = NULL;
> + }
> + if (!found)
> + DRV_LOG(WARNING,
> + "port %u rss hash function doesn't match "
> + "pattern", dev->data->port_id);
Dito.
> + } else {
> /* Remove any other flow. */
> for (i = hmin; i != (hmax + 1); ++i) {
> if (i == parser->layer || !parser->queue[i].ibv_attr)
> @@ -1108,8 +1224,6 @@ mlx5_flow_convert_rss(struct mlx5_flow_parse *parser)
> rte_free(parser->queue[i].ibv_attr);
> parser->queue[i].ibv_attr = NULL;
> }
> - } else if (!parser->queue[ip].ibv_attr) {
> - /* no RSS possible with the current configuration. */
> parser->rss_conf.queue_num = 1;
> }
> return 0;
> @@ -1179,10 +1293,6 @@ mlx5_flow_convert(struct rte_eth_dev *dev,
> for (i = 0; i != hash_rxq_init_n; ++i) {
> unsigned int offset;
>
> - if (!(parser->rss_conf.types &
> - hash_rxq_init[i].dpdk_rss_hf) &&
> - (i != HASH_RXQ_ETH))
> - continue;
> offset = parser->queue[i].offset;
> parser->queue[i].ibv_attr =
> mlx5_flow_convert_allocate(offset, error);
> @@ -1194,6 +1304,7 @@ mlx5_flow_convert(struct rte_eth_dev *dev,
> /* Third step. Conversion parse, fill the specifications. */
> parser->inner = 0;
> parser->tunnel = 0;
> + parser->layer = HASH_RXQ_ETH;
> for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
> struct mlx5_flow_data data = {
> .parser = parser,
> @@ -1211,23 +1322,23 @@ mlx5_flow_convert(struct rte_eth_dev *dev,
> if (ret)
> goto exit_free;
> }
> - if (parser->mark)
> - mlx5_flow_create_flag_mark(parser, parser->mark_id);
> - if (parser->count && parser->create) {
> - mlx5_flow_create_count(dev, parser);
> - if (!parser->cs)
> - goto exit_count_error;
> - }
> /*
> * Last step. Complete missing specification to reach the RSS
> * configuration.
> */
> if (!parser->drop)
> - ret = mlx5_flow_convert_rss(parser);
> + ret = mlx5_flow_convert_rss(dev, parser);
> if (ret)
> goto exit_free;
> mlx5_flow_convert_finalise(parser);
> mlx5_flow_update_priority(dev, parser, attr);
> + if (parser->mark)
> + mlx5_flow_create_flag_mark(parser, parser->mark_id);
> + if (parser->count && parser->create) {
> + mlx5_flow_create_count(dev, parser);
> + if (!parser->cs)
> + goto exit_count_error;
> + }
Why do you need to move this code?
> exit_free:
> /* Only verification is expected, all resources should be released. */
> if (!parser->create) {
> @@ -1275,17 +1386,11 @@ mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
> for (i = 0; i != hash_rxq_init_n; ++i) {
> if (!parser->queue[i].ibv_attr)
> continue;
> - /* Specification must be the same l3 type or none. */
> - if (parser->layer == HASH_RXQ_ETH ||
> - (hash_rxq_init[parser->layer].ip_version ==
> - hash_rxq_init[i].ip_version) ||
> - (hash_rxq_init[i].ip_version == 0)) {
> - dst = (void *)((uintptr_t)parser->queue[i].ibv_attr +
> - parser->queue[i].offset);
> - memcpy(dst, src, size);
> - ++parser->queue[i].ibv_attr->num_of_specs;
> - parser->queue[i].offset += size;
> - }
> + dst = (void *)((uintptr_t)parser->queue[i].ibv_attr +
> + parser->queue[i].offset);
> + memcpy(dst, src, size);
> + ++parser->queue[i].ibv_attr->num_of_specs;
> + parser->queue[i].offset += size;
> }
> }
>
> @@ -1316,9 +1421,7 @@ mlx5_flow_create_eth(const struct rte_flow_item *item,
> .size = eth_size,
> };
>
> - /* Don't update layer for the inner pattern. */
> - if (!parser->inner)
> - parser->layer = HASH_RXQ_ETH;
> + parser->layer = HASH_RXQ_ETH;
> if (spec) {
> unsigned int i;
>
> @@ -1431,9 +1534,7 @@ mlx5_flow_create_ipv4(const struct rte_flow_item *item,
> .size = ipv4_size,
> };
>
> - /* Don't update layer for the inner pattern. */
> - if (!parser->inner)
> - parser->layer = HASH_RXQ_IPV4;
> + parser->layer = HASH_RXQ_IPV4;
> if (spec) {
> if (!mask)
> mask = default_mask;
> @@ -1486,9 +1587,7 @@ mlx5_flow_create_ipv6(const struct rte_flow_item *item,
> .size = ipv6_size,
> };
>
> - /* Don't update layer for the inner pattern. */
> - if (!parser->inner)
> - parser->layer = HASH_RXQ_IPV6;
> + parser->layer = HASH_RXQ_IPV6;
> if (spec) {
> unsigned int i;
> uint32_t vtc_flow_val;
> @@ -1561,13 +1660,10 @@ mlx5_flow_create_udp(const struct rte_flow_item *item,
> .size = udp_size,
> };
>
> - /* Don't update layer for the inner pattern. */
> - if (!parser->inner) {
> - if (parser->layer == HASH_RXQ_IPV4)
> - parser->layer = HASH_RXQ_UDPV4;
> - else
> - parser->layer = HASH_RXQ_UDPV6;
> - }
> + if (parser->layer == HASH_RXQ_IPV4)
> + parser->layer = HASH_RXQ_UDPV4;
> + else
> + parser->layer = HASH_RXQ_UDPV6;
> if (spec) {
> if (!mask)
> mask = default_mask;
> @@ -1610,13 +1706,10 @@ mlx5_flow_create_tcp(const struct rte_flow_item *item,
> .size = tcp_size,
> };
>
> - /* Don't update layer for the inner pattern. */
> - if (!parser->inner) {
> - if (parser->layer == HASH_RXQ_IPV4)
> - parser->layer = HASH_RXQ_TCPV4;
> - else
> - parser->layer = HASH_RXQ_TCPV6;
> - }
> + if (parser->layer == HASH_RXQ_IPV4)
> + parser->layer = HASH_RXQ_TCPV4;
> + else
> + parser->layer = HASH_RXQ_TCPV6;
> if (spec) {
> if (!mask)
> mask = default_mask;
> @@ -1666,6 +1759,8 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item,
> id.vni[0] = 0;
> parser->inner = IBV_FLOW_SPEC_INNER;
> parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)];
> + parser->out_layer = parser->layer;
> + parser->layer = HASH_RXQ_TUNNEL;
> if (spec) {
> if (!mask)
> mask = default_mask;
> @@ -1720,6 +1815,8 @@ mlx5_flow_create_gre(const struct rte_flow_item *item __rte_unused,
>
> parser->inner = IBV_FLOW_SPEC_INNER;
> parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)];
> + parser->out_layer = parser->layer;
> + parser->layer = HASH_RXQ_TUNNEL;
> mlx5_flow_create_copy(parser, &tunnel, size);
> return 0;
> }
> @@ -1883,33 +1980,33 @@ mlx5_flow_create_action_queue_rss(struct rte_eth_dev *dev,
> unsigned int i;
>
> for (i = 0; i != hash_rxq_init_n; ++i) {
> - uint64_t hash_fields;
> -
> if (!parser->queue[i].ibv_attr)
> continue;
> flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr;
> parser->queue[i].ibv_attr = NULL;
> - hash_fields = hash_rxq_init[i].hash_fields;
> + flow->frxq[i].hash_fields = parser->queue[i].hash_fields;
> if (!priv->dev->data->dev_started)
> continue;
> flow->frxq[i].hrxq =
> mlx5_hrxq_get(dev,
> parser->rss_conf.key,
> parser->rss_conf.key_len,
> - hash_fields,
> + flow->frxq[i].hash_fields,
> parser->rss_conf.queue,
> parser->rss_conf.queue_num,
> - parser->tunnel);
> + parser->tunnel,
> + parser->rss_conf.level);
> if (flow->frxq[i].hrxq)
> continue;
> flow->frxq[i].hrxq =
> mlx5_hrxq_new(dev,
> parser->rss_conf.key,
> parser->rss_conf.key_len,
> - hash_fields,
> + flow->frxq[i].hash_fields,
> parser->rss_conf.queue,
> parser->rss_conf.queue_num,
> - parser->tunnel);
> + parser->tunnel,
> + parser->rss_conf.level);
> if (!flow->frxq[i].hrxq) {
> return rte_flow_error_set(error, ENOMEM,
> RTE_FLOW_ERROR_TYPE_HANDLE,
> @@ -2006,7 +2103,7 @@ mlx5_flow_create_action_queue(struct rte_eth_dev *dev,
> DRV_LOG(DEBUG, "port %u %p type %d QP %p ibv_flow %p",
> dev->data->port_id,
> (void *)flow, i,
> - (void *)flow->frxq[i].hrxq,
> + (void *)flow->frxq[i].hrxq->qp,
> (void *)flow->frxq[i].ibv_flow);
> }
> if (!flows_n) {
> @@ -2532,19 +2629,21 @@ mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list)
> flow->frxq[i].hrxq =
> mlx5_hrxq_get(dev, flow->rss_conf.key,
> flow->rss_conf.key_len,
> - hash_rxq_init[i].hash_fields,
> + flow->frxq[i].hash_fields,
> flow->rss_conf.queue,
> flow->rss_conf.queue_num,
> - flow->tunnel);
> + flow->tunnel,
> + flow->rss_conf.level);
> if (flow->frxq[i].hrxq)
> goto flow_create;
> flow->frxq[i].hrxq =
> mlx5_hrxq_new(dev, flow->rss_conf.key,
> flow->rss_conf.key_len,
> - hash_rxq_init[i].hash_fields,
> + flow->frxq[i].hash_fields,
> flow->rss_conf.queue,
> flow->rss_conf.queue_num,
> - flow->tunnel);
> + flow->tunnel,
> + flow->rss_conf.level);
> if (!flow->frxq[i].hrxq) {
> DRV_LOG(DEBUG,
> "port %u flow %p cannot be applied",
> diff --git a/drivers/net/mlx5/mlx5_glue.c b/drivers/net/mlx5/mlx5_glue.c
> index be684d378..6874aa32a 100644
> --- a/drivers/net/mlx5/mlx5_glue.c
> +++ b/drivers/net/mlx5/mlx5_glue.c
> @@ -313,6 +313,21 @@ mlx5_glue_dv_init_obj(struct mlx5dv_obj *obj, uint64_t obj_type)
> return mlx5dv_init_obj(obj, obj_type);
> }
>
> +static struct ibv_qp *
> +mlx5_glue_dv_create_qp(struct ibv_context *context,
> + struct ibv_qp_init_attr_ex *qp_init_attr_ex,
> + struct mlx5dv_qp_init_attr *dv_qp_init_attr)
> +{
> +#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
> + return mlx5dv_create_qp(context, qp_init_attr_ex, dv_qp_init_attr);
> +#else
> + (void)context;
> + (void)qp_init_attr_ex;
> + (void)dv_qp_init_attr;
> + return NULL;
> +#endif
> +}
> +
> const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue){
> .version = MLX5_GLUE_VERSION,
> .fork_init = mlx5_glue_fork_init,
> @@ -356,4 +371,5 @@ const struct mlx5_glue *mlx5_glue = &(const struct mlx5_glue){
> .dv_query_device = mlx5_glue_dv_query_device,
> .dv_set_context_attr = mlx5_glue_dv_set_context_attr,
> .dv_init_obj = mlx5_glue_dv_init_obj,
> + .dv_create_qp = mlx5_glue_dv_create_qp,
> };
> diff --git a/drivers/net/mlx5/mlx5_glue.h b/drivers/net/mlx5/mlx5_glue.h
> index b5efee3b6..841363872 100644
> --- a/drivers/net/mlx5/mlx5_glue.h
> +++ b/drivers/net/mlx5/mlx5_glue.h
> @@ -31,6 +31,10 @@ struct ibv_counter_set_init_attr;
> struct ibv_query_counter_set_attr;
> #endif
>
> +#ifndef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
> +struct mlx5dv_qp_init_attr;
> +#endif
> +
> /* LIB_GLUE_VERSION must be updated every time this structure is modified. */
> struct mlx5_glue {
> const char *version;
> @@ -106,6 +110,10 @@ struct mlx5_glue {
> enum mlx5dv_set_ctx_attr_type type,
> void *attr);
> int (*dv_init_obj)(struct mlx5dv_obj *obj, uint64_t obj_type);
> + struct ibv_qp *(*dv_create_qp)
> + (struct ibv_context *context,
> + struct ibv_qp_init_attr_ex *qp_init_attr_ex,
> + struct mlx5dv_qp_init_attr *dv_qp_init_attr);
> };
>
> const struct mlx5_glue *mlx5_glue;
> diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
> index 073732e16..6e5565fb2 100644
> --- a/drivers/net/mlx5/mlx5_rxq.c
> +++ b/drivers/net/mlx5/mlx5_rxq.c
> @@ -1386,6 +1386,8 @@ mlx5_ind_table_ibv_verify(struct rte_eth_dev *dev)
> * Number of queues.
> * @param tunnel
> * Tunnel type.
> + * @param rss_level
> + * RSS hash on tunnel level.
> *
> * @return
> * The Verbs object initialised, NULL otherwise and rte_errno is set.
> @@ -1394,13 +1396,17 @@ struct mlx5_hrxq *
> mlx5_hrxq_new(struct rte_eth_dev *dev,
> const uint8_t *rss_key, uint32_t rss_key_len,
> uint64_t hash_fields,
> - const uint16_t *queues, uint32_t queues_n, uint32_t tunnel)
> + const uint16_t *queues, uint32_t queues_n,
> + uint32_t tunnel, uint32_t rss_level)
tunnel and rss_level seems to be redundant here.
rss_level > 1 is equivalent to tunnel, there is no need to have both.
> {
> struct priv *priv = dev->data->dev_private;
> struct mlx5_hrxq *hrxq;
> struct mlx5_ind_table_ibv *ind_tbl;
> struct ibv_qp *qp;
> int err;
> +#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
> + struct mlx5dv_qp_init_attr qp_init_attr = {0};
> +#endif
>
> queues_n = hash_fields ? queues_n : 1;
> ind_tbl = mlx5_ind_table_ibv_get(dev, queues, queues_n);
> @@ -1410,6 +1416,33 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
> rte_errno = ENOMEM;
> return NULL;
> }
> +#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
> + if (tunnel) {
> + qp_init_attr.comp_mask =
> + MLX5DV_QP_INIT_ATTR_MASK_QP_CREATE_FLAGS;
> + qp_init_attr.create_flags = MLX5DV_QP_CREATE_TUNNEL_OFFLOADS;
> + }
> + qp = mlx5_glue->dv_create_qp(
> + priv->ctx,
> + &(struct ibv_qp_init_attr_ex){
> + .qp_type = IBV_QPT_RAW_PACKET,
> + .comp_mask =
> + IBV_QP_INIT_ATTR_PD |
> + IBV_QP_INIT_ATTR_IND_TABLE |
> + IBV_QP_INIT_ATTR_RX_HASH,
> + .rx_hash_conf = (struct ibv_rx_hash_conf){
> + .rx_hash_function = IBV_RX_HASH_FUNC_TOEPLITZ,
> + .rx_hash_key_len = rss_key_len,
> + .rx_hash_key = (void *)(uintptr_t)rss_key,
> + .rx_hash_fields_mask = hash_fields |
> + (tunnel && rss_level ?
> + (uint32_t)IBV_RX_HASH_INNER : 0),
> + },
> + .rwq_ind_tbl = ind_tbl->ind_table,
> + .pd = priv->pd,
> + },
> + &qp_init_attr);
> +#else
> qp = mlx5_glue->create_qp_ex
> (priv->ctx,
> &(struct ibv_qp_init_attr_ex){
> @@ -1427,6 +1460,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
> .rwq_ind_tbl = ind_tbl->ind_table,
> .pd = priv->pd,
> });
> +#endif
> if (!qp) {
> rte_errno = errno;
> goto error;
> @@ -1439,6 +1473,7 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
> hrxq->rss_key_len = rss_key_len;
> hrxq->hash_fields = hash_fields;
> hrxq->tunnel = tunnel;
> + hrxq->rss_level = rss_level;
> memcpy(hrxq->rss_key, rss_key, rss_key_len);
> rte_atomic32_inc(&hrxq->refcnt);
> LIST_INSERT_HEAD(&priv->hrxqs, hrxq, next);
> @@ -1448,6 +1483,8 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
> return hrxq;
> error:
> err = rte_errno; /* Save rte_errno before cleanup. */
> + DRV_LOG(ERR, "port %u: Error creating Hash Rx queue",
> + dev->data->port_id);
Developer log, please remove it, for the user the flow won't be created
with the correct error reported.
> mlx5_ind_table_ibv_release(dev, ind_tbl);
> if (qp)
> claim_zero(mlx5_glue->destroy_qp(qp));
> @@ -1469,6 +1506,8 @@ mlx5_hrxq_new(struct rte_eth_dev *dev,
> * Number of queues.
> * @param tunnel
> * Tunnel type.
> + * @param rss_level
> + * RSS hash on tunnel level
> *
> * @return
> * An hash Rx queue on success.
> @@ -1477,7 +1516,8 @@ struct mlx5_hrxq *
> mlx5_hrxq_get(struct rte_eth_dev *dev,
> const uint8_t *rss_key, uint32_t rss_key_len,
> uint64_t hash_fields,
> - const uint16_t *queues, uint32_t queues_n, uint32_t tunnel)
> + const uint16_t *queues, uint32_t queues_n,
> + uint32_t tunnel, uint32_t rss_level)
Dito.
> {
> struct priv *priv = dev->data->dev_private;
> struct mlx5_hrxq *hrxq;
> @@ -1494,6 +1534,8 @@ mlx5_hrxq_get(struct rte_eth_dev *dev,
> continue;
> if (hrxq->tunnel != tunnel)
> continue;
> + if (hrxq->rss_level != rss_level)
> + continue;
> ind_tbl = mlx5_ind_table_ibv_get(dev, queues, queues_n);
> if (!ind_tbl)
> continue;
> diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
> index d35605b55..62cf55109 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.h
> +++ b/drivers/net/mlx5/mlx5_rxtx.h
> @@ -147,6 +147,7 @@ struct mlx5_hrxq {
> struct ibv_qp *qp; /* Verbs queue pair. */
> uint64_t hash_fields; /* Verbs Hash fields. */
> uint32_t tunnel; /* Tunnel type. */
> + uint32_t rss_level; /* RSS on tunnel level. */
> uint32_t rss_key_len; /* Hash key length in bytes. */
> uint8_t rss_key[]; /* Hash key. */
> };
> @@ -251,12 +252,12 @@ struct mlx5_hrxq *mlx5_hrxq_new(struct rte_eth_dev *dev,
> const uint8_t *rss_key, uint32_t rss_key_len,
> uint64_t hash_fields,
> const uint16_t *queues, uint32_t queues_n,
> - uint32_t tunnel);
> + uint32_t tunnel, uint32_t rss_level);
> struct mlx5_hrxq *mlx5_hrxq_get(struct rte_eth_dev *dev,
> const uint8_t *rss_key, uint32_t rss_key_len,
> uint64_t hash_fields,
> const uint16_t *queues, uint32_t queues_n,
> - uint32_t tunnel);
> + uint32_t tunnel, uint32_t rss_level);
> int mlx5_hrxq_release(struct rte_eth_dev *dev, struct mlx5_hrxq *hxrq);
> int mlx5_hrxq_ibv_verify(struct rte_eth_dev *dev);
> uint64_t mlx5_get_rx_port_offloads(void);
> --
> 2.13.3
>
Thanks,
--
Nélio Laranjeiro
6WIND
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