From mboxrd@z Thu Jan 1 00:00:00 1970 From: Beilei Xing Subject: [PATCH v3 3/4] net/i40e: add MPLS parsing function Date: Tue, 28 Mar 2017 14:40:07 +0800 Message-ID: <1490683208-38096-4-git-send-email-beilei.xing@intel.com> References: <1490266669-122137-1-git-send-email-beilei.xing@intel.com> <1490683208-38096-1-git-send-email-beilei.xing@intel.com> Cc: helin.zhang@intel.com, bernard.iremonger@intel.com, dev@dpdk.org To: jingjing.wu@intel.com Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 47B9C29C7 for ; Tue, 28 Mar 2017 08:41:18 +0200 (CEST) In-Reply-To: <1490683208-38096-1-git-send-email-beilei.xing@intel.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" This patch add MPLS parsing function to support MPLS filtering. Signed-off-by: Beilei Xing --- drivers/net/i40e/i40e_ethdev.h | 2 + drivers/net/i40e/i40e_flow.c | 234 ++++++++++++++++++++++++++++++++++++++++- 2 files changed, 235 insertions(+), 1 deletion(-) diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index f917b0c..7cd80ff 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -542,6 +542,8 @@ enum i40e_tunnel_type { I40E_TUNNEL_TYPE_NVGRE, I40E_TUNNEL_TYPE_IP_IN_GRE, I40E_L2_TUNNEL_TYPE_E_TAG, + I40E_TUNNEL_TYPE_MPLSoUDP, + I40E_TUNNEL_TYPE_MPLSoGRE, I40E_TUNNEL_TYPE_MAX, }; diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c index 148e519..c9b9b3b 100644 --- a/drivers/net/i40e/i40e_flow.c +++ b/drivers/net/i40e/i40e_flow.c @@ -57,6 +57,7 @@ #define I40E_IPV6_FRAG_HEADER 44 #define I40E_TENANT_ARRAY_NUM 3 #define I40E_TCI_MASK 0xFFFF +#define I40E_MPLS_LABEL_MASK 0xFFFFF static int i40e_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, @@ -114,6 +115,12 @@ 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_mpls_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_destroy_ethertype_filter(struct i40e_pf *pf, struct i40e_ethertype_filter *filter); static int i40e_flow_destroy_tunnel_filter(struct i40e_pf *pf, @@ -278,6 +285,39 @@ static enum rte_flow_item_type pattern_vxlan_4[] = { RTE_FLOW_ITEM_TYPE_END, }; +/* Pattern matched MPLS */ +static enum rte_flow_item_type pattern_mpls_1[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_UDP, + RTE_FLOW_ITEM_TYPE_MPLS, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_mpls_2[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_UDP, + RTE_FLOW_ITEM_TYPE_MPLS, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_mpls_3[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV4, + RTE_FLOW_ITEM_TYPE_GRE, + RTE_FLOW_ITEM_TYPE_MPLS, + RTE_FLOW_ITEM_TYPE_END, +}; + +static enum rte_flow_item_type pattern_mpls_4[] = { + RTE_FLOW_ITEM_TYPE_ETH, + RTE_FLOW_ITEM_TYPE_IPV6, + RTE_FLOW_ITEM_TYPE_GRE, + RTE_FLOW_ITEM_TYPE_MPLS, + RTE_FLOW_ITEM_TYPE_END, +}; + static struct i40e_valid_pattern i40e_supported_patterns[] = { /* Ethertype */ { pattern_ethertype, i40e_flow_parse_ethertype_filter }, @@ -303,6 +343,11 @@ 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 }, + /* MPLSoUDP & MPLSoGRE */ + { pattern_mpls_1, i40e_flow_parse_mpls_filter }, + { pattern_mpls_2, i40e_flow_parse_mpls_filter }, + { pattern_mpls_3, i40e_flow_parse_mpls_filter }, + { pattern_mpls_4, i40e_flow_parse_mpls_filter }, }; #define NEXT_ITEM_OF_ACTION(act, actions, index) \ @@ -1516,6 +1561,193 @@ i40e_flow_parse_vxlan_filter(struct rte_eth_dev *dev, } static int +i40e_check_label_mask(const uint8_t *mask) +{ + uint32_t j; + int is_masked = 0; + + for (j = 0; j < I40E_TENANT_ARRAY_NUM; j++) { + if (*(mask + j) == 0) { + if (j > 0 && (*(mask + j) != *(mask + j - 1))) + return -EINVAL; + is_masked = 1; + } else if (*(mask + j) == UINT8_MAX) { + if (j == 2) + return -EINVAL; + } else if (*(mask + j) == 0xF0) { + if (j != 2) + return -EINVAL; + is_masked = 0; + } else + return -EINVAL; + } + + return is_masked; +} + +/* 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 + * filled with 1. + * 4. Mask of fields which needn't to be matched should be + * filled with 0. + */ +static int +i40e_flow_parse_mpls_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_mpls *mpls_spec; + const struct rte_flow_item_mpls *mpls_mask; + enum rte_flow_item_type item_type; + bool is_mplsoudp = 0; /* 1 - MPLSoUDP, 0 - MPLSoGRE */ + int is_label_masked = 0; + uint32_t label_be = 0; + + 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: + if (item->spec || item->mask) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid ETH item"); + return -rte_errno; + } + break; + case RTE_FLOW_ITEM_TYPE_IPV4: + filter->ip_type = I40E_TUNNEL_IPTYPE_IPV4; + /* IPv4 is used to describe protocol, + * spec amd 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 amd 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_UDP: + /* UDP is used to describe protocol, + * spec amd mask should be NULL. + */ + if (item->spec || item->mask) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid UDP item"); + return -rte_errno; + } + is_mplsoudp = 1; + break; + case RTE_FLOW_ITEM_TYPE_GRE: + /* GRE is used to describe protocol, + * spec amd 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; + } + break; + case RTE_FLOW_ITEM_TYPE_MPLS: + mpls_spec = + (const struct rte_flow_item_mpls *)item->spec; + mpls_mask = + (const struct rte_flow_item_mpls *)item->mask; + + if (!mpls_spec || !mpls_mask) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid MPLS item"); + return -rte_errno; + } + + is_label_masked = + i40e_check_label_mask(mpls_mask->label_tc_s); + + if (is_label_masked != 0) { + rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ITEM, + item, + "Invalid MPLS label mask"); + return -rte_errno; + } + rte_memcpy(((uint8_t *)&label_be + 1), + mpls_spec->label_tc_s, 3); + filter->tenant_id = rte_be_to_cpu_32(label_be) >> 4; + break; + default: + break; + } + } + + if (is_mplsoudp) + filter->tunnel_type = I40E_TUNNEL_TYPE_MPLSoUDP; + else + filter->tunnel_type = I40E_TUNNEL_TYPE_MPLSoGRE; + + return 0; +} + +static int +i40e_flow_parse_mpls_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_mpls_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; +} + +static int i40e_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item pattern[], @@ -1750,7 +1982,7 @@ i40e_flow_destroy_tunnel_filter(struct i40e_pf *pf, ret = i40e_aq_remove_cloud_filters(hw, vsi->seid, &cld_filter.element, 1); if (ret < 0) - return ret; + return -ENOTSUP; node = i40e_sw_tunnel_filter_lookup(tunnel_rule, &filter->input); if (!node) -- 2.5.5