From: Chenxu Di <chenxux.di@intel.com> To: dev@dpdk.org Cc: beilei.xing@intel.com, jia.guo@intel.com, junyux.jiang@intel.com, Chenxu Di <chenxux.di@intel.com> Subject: [dpdk-dev] [RFC 2/2] net/i40e: add IP-in-GRE flow parsing Date: Tue, 20 Oct 2020 08:24:27 +0000 Message-ID: <20201020082427.33105-3-chenxux.di@intel.com> (raw) In-Reply-To: <20201020082427.33105-1-chenxux.di@intel.com> This patch adds IP in GRE flow parsing function to support IP in GRE classification. Signed-off-by: Chenxu Di <chenxux.di@intel.com> --- drivers/net/i40e/i40e_flow.c | 237 +++++++++++++++++++++++++++++++++++ 1 file changed, 237 insertions(+) diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c index e29ea6da2..364003528 100644 --- a/drivers/net/i40e/i40e_flow.c +++ b/drivers/net/i40e/i40e_flow.c @@ -141,6 +141,12 @@ static int i40e_flow_parse_l4_cloud_filter(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow_error *error, union i40e_filter_t *filter); +static int i40e_flow_parse_ip_in_gre_filter(struct rte_eth_dev *dev, + const struct rte_flow_attr *attr, + const struct rte_flow_item pattern[], + const struct rte_flow_action actions[], + struct rte_flow_error *error, + union i40e_filter_t *filter); const struct rte_flow_ops i40e_flow_ops = { .validate = i40e_flow_validate, .create = i40e_flow_create, @@ -1737,6 +1743,38 @@ static enum rte_flow_item_type pattern_vxlan_gpe_6[] = { RTE_FLOW_ITEM_TYPE_END, }; +static enum rte_flow_item_type pattern_ip_in_gre_1[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_GRE, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_ip_in_gre_2[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_GRE, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_ip_in_gre_3[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_GRE, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_ip_in_gre_4[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_GRE, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_END, +}; + static struct i40e_valid_pattern i40e_supported_patterns[] = { /* Ethertype */ { pattern_ethertype, i40e_flow_parse_ethertype_filter }, @@ -1938,6 +1976,11 @@ static struct i40e_valid_pattern i40e_supported_patterns[] = { { pattern_vxlan_gpe_4, i40e_flow_parse_vxlan_gpe_filter }, { pattern_vxlan_gpe_5, i40e_flow_parse_vxlan_gpe_filter }, { pattern_vxlan_gpe_6, i40e_flow_parse_vxlan_gpe_filter }, + /* IP in GRE */ + { pattern_ip_in_gre_1, i40e_flow_parse_ip_in_gre_filter }, + { pattern_ip_in_gre_2, i40e_flow_parse_ip_in_gre_filter }, + { pattern_ip_in_gre_3, i40e_flow_parse_ip_in_gre_filter }, + { pattern_ip_in_gre_4, i40e_flow_parse_ip_in_gre_filter }, }; #define NEXT_ITEM_OF_ACTION(act, actions, index) \ @@ -4348,6 +4391,200 @@ i40e_flow_parse_nvgre_filter(struct rte_eth_dev *dev, if (ret) return ret; + cons_filter_type = RTE_ETH_FILTER_TUNNEL; + return ret; +} + +/* 1. Last in item should be NULL as range is not supported. + * 2. Supported filter types: OIP and IIP. + * 3. Mask of fields which need to be matched should be + * filled with 1. + * 4. Mask of fields which needn't to be matched should be + * filled with 0. + */ +static int +i40e_flow_parse_ip_in_gre_pattern(__rte_unused struct rte_eth_dev *dev, + const struct rte_flow_item *pattern, + struct rte_flow_error *error, + struct i40e_tunnel_filter_conf *filter) +{ + const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask; + const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask; + const struct rte_flow_item *item = pattern; + uint8_t ipv6_src_addr_mask[16] = {0x00}; + uint8_t ipv6_dst_addr_mask[16] = { + 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF + }; + enum rte_flow_item_type item_type; + uint8_t filter_type = 0; + bool gre_flag = 0; + int ret; + + for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) { + if (item->last) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Not support range"); + return -rte_errno; + } + item_type = item->type; + switch (item_type) { + case RTE_FLOW_ITEM_TYPE_ETH: + /* Ether is used to describe protocol, + * spec and mask should be NULL. + */ + if (item->spec || item->mask) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid ether item"); + return -rte_errno; + } + break; + case RTE_FLOW_ITEM_TYPE_IPV4: + ipv4_spec = item->spec; + ipv4_mask = item->mask; + + if ((!ipv4_spec && ipv4_mask) || + (ipv4_spec && !ipv4_mask)) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid IPv4 item"); + return -rte_errno; + } + + if (ipv4_spec && ipv4_mask) { + /* Check IPv4 mask */ + if (ipv4_mask->hdr.version_ihl || + ipv4_mask->hdr.total_length || + ipv4_mask->hdr.packet_id || + ipv4_mask->hdr.fragment_offset || + ipv4_mask->hdr.hdr_checksum || + ipv4_mask->hdr.type_of_service || + ipv4_mask->hdr.time_to_live || + ipv4_mask->hdr.next_proto_id || + ipv4_mask->hdr.src_addr || + ipv4_mask->hdr.dst_addr != UINT32_MAX) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid IPv4 mask."); + return -rte_errno; + } + + filter->ip_addr.ipv4_addr = ipv4_spec->hdr.dst_addr; + filter->ip_type = I40E_TUNNEL_IPTYPE_IPV4; + if (gre_flag) + filter_type |= ETH_TUNNEL_FILTER_IIP; + else + filter_type |= ETH_TUNNEL_FILTER_OIP; + } + break; + case RTE_FLOW_ITEM_TYPE_IPV6: + ipv6_spec = item->spec; + ipv6_mask = item->mask; + + if ((!ipv6_spec && ipv6_mask) || + (ipv6_spec && !ipv6_mask)) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid IPv6 item"); + return -rte_errno; + } + + if (ipv6_spec && ipv6_mask) { + /* Check IPv6 mask */ + if (ipv6_mask->hdr.vtc_flow || + ipv6_mask->hdr.payload_len || + ipv6_mask->hdr.proto || + ipv6_mask->hdr.hop_limits || + memcmp(ipv6_mask->hdr.src_addr, + ipv6_src_addr_mask, + RTE_DIM(ipv6_mask->hdr.src_addr)) || + memcmp(ipv6_mask->hdr.dst_addr, + ipv6_dst_addr_mask, + RTE_DIM(ipv6_mask->hdr.dst_addr))) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid IPv6 item"); + return -rte_errno; + } + + rte_memcpy(filter->ip_addr.ipv6_addr, + ipv6_spec->hdr.dst_addr, 16); + filter->ip_type = I40E_TUNNEL_IPTYPE_IPV6; + if (gre_flag) + filter_type |= ETH_TUNNEL_FILTER_IIP; + else + filter_type |= ETH_TUNNEL_FILTER_OIP; + } + break; + case RTE_FLOW_ITEM_TYPE_GRE: + /* GRE is used to describe protocol, + * spec and mask should be NULL. + */ + if (item->spec || item->mask) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid GRE item"); + return -rte_errno; + } + + gre_flag = 1; + break; + default: + break; + } + } + + ret = i40e_check_tunnel_filter_type(filter_type); + if (ret < 0) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + NULL, + "Invalid filter type"); + return -rte_errno; + } + filter->filter_type = filter_type; + + filter->tunnel_type = I40E_TUNNEL_TYPE_IP_IN_GRE; + + return 0; +} + +static int +i40e_flow_parse_ip_in_gre_filter(struct rte_eth_dev *dev, + const struct rte_flow_attr *attr, + const struct rte_flow_item pattern[], + const struct rte_flow_action actions[], + struct rte_flow_error *error, + union i40e_filter_t *filter) +{ + struct i40e_tunnel_filter_conf *tunnel_filter = + &filter->consistent_tunnel_filter; + int ret; + + ret = i40e_flow_parse_ip_in_gre_pattern(dev, pattern, + error, tunnel_filter); + if (ret) + return ret; + + ret = i40e_flow_parse_tunnel_action(dev, actions, error, tunnel_filter); + if (ret) + return ret; + + ret = i40e_flow_parse_attr(attr, error); + if (ret) + return ret; + cons_filter_type = RTE_ETH_FILTER_TUNNEL; return ret; -- 2.17.1
prev parent reply other threads:[~2020-10-20 8:39 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-20 8:24 [dpdk-dev] [RFC 0/2] net/i40e: add VXLAN-GPE and " Chenxu Di 2020-10-20 8:24 ` [dpdk-dev] [RFC 1/2] net/i40e: add VXLAN-GPE " Chenxu Di 2020-10-20 8:24 ` Chenxu Di [this message]
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