> -----Original Message-----
> From: Nélio Laranjeiro <nelio.laranje...@6wind.com>
> Sent: Wednesday, April 11, 2018 4:55 PM
> To: Xueming(Steven) Li <xuemi...@mellanox.com>
> Cc: Shahaf Shuler <shah...@mellanox.com>; dev@dpdk.org
> Subject: Re: [PATCH v2 07/15] net/mlx5: support tunnel RSS level
>
> 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 <xuemi...@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.
Thanks, updated.
>
> > 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".
Thanks, updated.
>
> > + 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?
To avoid counter resource missing if anything wrong in function
mlx5_flow_convert_rss().
>
> > 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.
There is a case of tunnel and outer rss(1).
>
> > {
> > 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.
Removed, there was a log in caller side.
>
> > 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
