From: Beilei Xing Date: Wed, 7 Jun 2017 06:53:59 +0000 (+0800) Subject: net/i40e: add NVGRE flow parsing X-Git-Tag: spdx-start~3042 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=30965ca341278c52a54682f4866a6e025c178e11;p=dpdk.git net/i40e: add NVGRE flow parsing This patch adds NVGRE flow parsing function to support NVGRE classification. Signed-off-by: Beilei Xing Acked-by: Wenzhuo Lu --- diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c index b4ba55560a..fab4a0d430 100644 --- a/drivers/net/i40e/i40e_flow.c +++ b/drivers/net/i40e/i40e_flow.c @@ -114,6 +114,12 @@ static int i40e_flow_parse_vxlan_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_nvgre_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); static int i40e_flow_parse_mpls_filter(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item pattern[], @@ -296,7 +302,40 @@ static enum rte_flow_item_type pattern_vxlan_4[] = { RTE_FLOW_ITEM_TYPE_END, }; -/* Pattern matched MPLS */ +static enum rte_flow_item_type pattern_nvgre_1[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_NVGRE, + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_nvgre_2[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_NVGRE, + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_nvgre_3[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_NVGRE, + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_VLAN, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_nvgre_4[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_NVGRE, + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_VLAN, + RTE_FLOW_ITEM_TYPE_END, +}; + static enum rte_flow_item_type pattern_mpls_1[] = { RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_IPV4, @@ -329,7 +368,6 @@ static enum rte_flow_item_type pattern_mpls_4[] = { RTE_FLOW_ITEM_TYPE_END, }; -/* Pattern matched QINQ */ static enum rte_flow_item_type pattern_qinq_1[] = { RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_VLAN, @@ -362,6 +400,11 @@ static struct i40e_valid_pattern i40e_supported_patterns[] = { { pattern_vxlan_2, i40e_flow_parse_vxlan_filter }, { pattern_vxlan_3, i40e_flow_parse_vxlan_filter }, { pattern_vxlan_4, i40e_flow_parse_vxlan_filter }, + /* NVGRE */ + { pattern_nvgre_1, i40e_flow_parse_nvgre_filter }, + { pattern_nvgre_2, i40e_flow_parse_nvgre_filter }, + { pattern_nvgre_3, i40e_flow_parse_nvgre_filter }, + { pattern_nvgre_4, i40e_flow_parse_nvgre_filter }, /* MPLSoUDP & MPLSoGRE */ { pattern_mpls_1, i40e_flow_parse_mpls_filter }, { pattern_mpls_2, i40e_flow_parse_mpls_filter }, @@ -1524,6 +1567,226 @@ i40e_flow_parse_vxlan_filter(struct rte_eth_dev *dev, return ret; } +/* 1. Last in item should be NULL as range is not supported. + * 2. Supported filter types: IMAC_IVLAN_TENID, IMAC_IVLAN, + * IMAC_TENID, OMAC_TENID_IMAC and IMAC. + * 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_nvgre_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 *item = pattern; + const struct rte_flow_item_eth *eth_spec; + const struct rte_flow_item_eth *eth_mask; + const struct rte_flow_item_nvgre *nvgre_spec; + const struct rte_flow_item_nvgre *nvgre_mask; + const struct rte_flow_item_vlan *vlan_spec; + const struct rte_flow_item_vlan *vlan_mask; + enum rte_flow_item_type item_type; + uint8_t filter_type = 0; + bool is_tni_masked = 0; + uint8_t tni_mask[] = {0xFF, 0xFF, 0xFF}; + bool nvgre_flag = 0; + uint32_t tenant_id_be = 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: + eth_spec = (const struct rte_flow_item_eth *)item->spec; + eth_mask = (const struct rte_flow_item_eth *)item->mask; + + /* Check if ETH item is used for place holder. + * If yes, both spec and mask should be NULL. + * If no, both spec and mask shouldn't be NULL. + */ + if ((!eth_spec && eth_mask) || + (eth_spec && !eth_mask)) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid ether spec/mask"); + return -rte_errno; + } + + if (eth_spec && eth_mask) { + /* DST address of inner MAC shouldn't be masked. + * SRC address of Inner MAC should be masked. + */ + if (!is_broadcast_ether_addr(ð_mask->dst) || + !is_zero_ether_addr(ð_mask->src) || + eth_mask->type) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid ether spec/mask"); + return -rte_errno; + } + + if (!nvgre_flag) { + rte_memcpy(&filter->outer_mac, + ð_spec->dst, + ETHER_ADDR_LEN); + filter_type |= ETH_TUNNEL_FILTER_OMAC; + } else { + rte_memcpy(&filter->inner_mac, + ð_spec->dst, + ETHER_ADDR_LEN); + filter_type |= ETH_TUNNEL_FILTER_IMAC; + } + } + + break; + case RTE_FLOW_ITEM_TYPE_VLAN: + vlan_spec = + (const struct rte_flow_item_vlan *)item->spec; + vlan_mask = + (const struct rte_flow_item_vlan *)item->mask; + if (!(vlan_spec && vlan_mask)) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid vlan item"); + return -rte_errno; + } + + if (vlan_spec && vlan_mask) { + if (vlan_mask->tci == + rte_cpu_to_be_16(I40E_TCI_MASK)) + filter->inner_vlan = + rte_be_to_cpu_16(vlan_spec->tci) & + I40E_TCI_MASK; + filter_type |= ETH_TUNNEL_FILTER_IVLAN; + } + break; + case RTE_FLOW_ITEM_TYPE_IPV4: + filter->ip_type = I40E_TUNNEL_IPTYPE_IPV4; + /* IPv4 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 IPv4 item"); + return -rte_errno; + } + break; + case RTE_FLOW_ITEM_TYPE_IPV6: + filter->ip_type = I40E_TUNNEL_IPTYPE_IPV6; + /* IPv6 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 IPv6 item"); + return -rte_errno; + } + break; + case RTE_FLOW_ITEM_TYPE_NVGRE: + nvgre_spec = + (const struct rte_flow_item_nvgre *)item->spec; + nvgre_mask = + (const struct rte_flow_item_nvgre *)item->mask; + /* Check if NVGRE item is used to describe protocol. + * If yes, both spec and mask should be NULL. + * If no, both spec and mask shouldn't be NULL. + */ + if ((!nvgre_spec && nvgre_mask) || + (nvgre_spec && !nvgre_mask)) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid NVGRE item"); + return -rte_errno; + } + + if (nvgre_spec && nvgre_mask) { + is_tni_masked = + !!memcmp(nvgre_mask->tni, tni_mask, + RTE_DIM(tni_mask)); + if (is_tni_masked) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid TNI mask"); + return -rte_errno; + } + rte_memcpy(((uint8_t *)&tenant_id_be + 1), + nvgre_spec->tni, 3); + filter->tenant_id = + rte_be_to_cpu_32(tenant_id_be); + filter_type |= ETH_TUNNEL_FILTER_TENID; + } + + nvgre_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_NVGRE; + + return 0; +} + +static int +i40e_flow_parse_nvgre_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_nvgre_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; +} + /* 1. Last in item should be NULL as range is not supported. * 2. Supported filter types: MPLS label. * 3. Mask of fields which need to be matched should be