From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xueming Li Subject: [PATCH v2 09/15] net/mlx5: introduce VXLAN-GPE tunnel type Date: Tue, 10 Apr 2018 21:34:09 +0800 Message-ID: <20180410133415.189905-10-xuemingl@mellanox.com> References: <20180410133415.189905-1-xuemingl@mellanox.com> Cc: Xueming Li , dev@dpdk.org To: Nelio Laranjeiro , Shahaf Shuler Return-path: Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id ADEF71BA9F for ; Tue, 10 Apr 2018 15:34:41 +0200 (CEST) In-Reply-To: <20180410133415.189905-1-xuemingl@mellanox.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add VXLAN-GPE support to rte flow. Signed-off-by: Xueming Li --- drivers/net/mlx5/mlx5_flow.c | 95 +++++++++++++++++++++++++++++++++++++++++++- drivers/net/mlx5/mlx5_rxtx.c | 3 +- 2 files changed, 95 insertions(+), 3 deletions(-) diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 70718c9fe..857b8b716 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -88,6 +88,11 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item, struct mlx5_flow_data *data); static int +mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item, + const void *default_mask, + struct mlx5_flow_data *data); + +static int mlx5_flow_create_gre(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); @@ -238,10 +243,12 @@ struct rte_flow { #define IS_TUNNEL(type) ( \ (type) == RTE_FLOW_ITEM_TYPE_VXLAN || \ + (type) == RTE_FLOW_ITEM_TYPE_VXLAN_GPE || \ (type) == RTE_FLOW_ITEM_TYPE_GRE) const uint32_t flow_ptype[] = { [RTE_FLOW_ITEM_TYPE_VXLAN] = RTE_PTYPE_TUNNEL_VXLAN, + [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = RTE_PTYPE_TUNNEL_VXLAN_GPE, [RTE_FLOW_ITEM_TYPE_GRE] = RTE_PTYPE_TUNNEL_GRE, }; @@ -250,6 +257,8 @@ const uint32_t flow_ptype[] = { const uint32_t ptype_ext[] = { [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP, + [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)] = RTE_PTYPE_TUNNEL_VXLAN_GPE | + RTE_PTYPE_L4_UDP, [PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)] = RTE_PTYPE_TUNNEL_GRE, }; @@ -307,6 +316,7 @@ static const struct mlx5_flow_items mlx5_flow_items[] = { [RTE_FLOW_ITEM_TYPE_END] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_VXLAN, + RTE_FLOW_ITEM_TYPE_VXLAN_GPE, RTE_FLOW_ITEM_TYPE_GRE), }, [RTE_FLOW_ITEM_TYPE_ETH] = { @@ -385,7 +395,8 @@ static const struct mlx5_flow_items mlx5_flow_items[] = { .dst_sz = sizeof(struct ibv_flow_spec_ipv6), }, [RTE_FLOW_ITEM_TYPE_UDP] = { - .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN), + .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN, + RTE_FLOW_ITEM_TYPE_VXLAN_GPE), .actions = valid_actions, .mask = &(const struct rte_flow_item_udp){ .hdr = { @@ -437,6 +448,19 @@ static const struct mlx5_flow_items mlx5_flow_items[] = { .convert = mlx5_flow_create_vxlan, .dst_sz = sizeof(struct ibv_flow_spec_tunnel), }, + [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = { + .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_IPV6), + .actions = valid_actions, + .mask = &(const struct rte_flow_item_vxlan_gpe){ + .vni = "\xff\xff\xff", + }, + .default_mask = &rte_flow_item_vxlan_gpe_mask, + .mask_sz = sizeof(struct rte_flow_item_vxlan_gpe), + .convert = mlx5_flow_create_vxlan_gpe, + .dst_sz = sizeof(struct ibv_flow_spec_tunnel), + }, }; /** Structure to pass to the conversion function. */ @@ -1789,6 +1813,75 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item, } /** + * Convert VXLAN-GPE item to Verbs specification. + * + * @param item[in] + * Item specification. + * @param default_mask[in] + * Default bit-masks to use when item->mask is not provided. + * @param data[in, out] + * User structure. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +static int +mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item, + const void *default_mask, + struct mlx5_flow_data *data) +{ + const struct rte_flow_item_vxlan_gpe *spec = item->spec; + const struct rte_flow_item_vxlan_gpe *mask = item->mask; + struct mlx5_flow_parse *parser = data->parser; + unsigned int size = sizeof(struct ibv_flow_spec_tunnel); + struct ibv_flow_spec_tunnel vxlan = { + .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, + .size = size, + }; + union vni { + uint32_t vlan_id; + uint8_t vni[4]; + } id; + int r; + + id.vni[0] = 0; + parser->inner = IBV_FLOW_SPEC_INNER; + parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)]; + parser->out_layer = parser->layer; + parser->layer = HASH_RXQ_TUNNEL; + if (spec) { + if (!mask) + mask = default_mask; + memcpy(&id.vni[1], spec->vni, 3); + vxlan.val.tunnel_id = id.vlan_id; + memcpy(&id.vni[1], mask->vni, 3); + vxlan.mask.tunnel_id = id.vlan_id; + if (spec->protocol) { + r = EINVAL; + return r; + } + /* Remove unwanted bits from values. */ + vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; + } + /* + * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this + * layer is defined in the Verbs specification it is interpreted as + * wildcard and all packets will match this rule, if it follows a full + * stack layer (ex: eth / ipv4 / udp), all packets matching the layers + * before will also match this rule. + * To avoid such situation, VNI 0 is currently refused. + */ + /* Only allow tunnel w/o tunnel id pattern after proper outer spec. */ + if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id) + return rte_flow_error_set(data->error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "VxLAN-GPE vni cannot be 0"); + mlx5_flow_create_copy(parser, &vxlan, size); + return 0; +} + +/** * Convert GRE item to Verbs specification. * * @param item[in] diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c index 285b2dbf0..c9342d659 100644 --- a/drivers/net/mlx5/mlx5_rxtx.c +++ b/drivers/net/mlx5/mlx5_rxtx.c @@ -466,8 +466,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) uint8_t vlan_sz = (buf->ol_flags & PKT_TX_VLAN_PKT) ? 4 : 0; const uint64_t is_tunneled = - buf->ol_flags & (PKT_TX_TUNNEL_GRE | - PKT_TX_TUNNEL_VXLAN); + buf->ol_flags & (PKT_TX_TUNNEL_MASK); tso_header_sz = buf->l2_len + vlan_sz + buf->l3_len + buf->l4_len; -- 2.13.3