net/hinic: refactor checksum functions
Encapsulate different types of packet checksum preprocessing into functions. Signed-off-by: Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
This commit is contained in:
Xiaoyun Wang
Ferruh Yigit
parent
1ccc479014
commit
8c8b61234f
@ -38,9 +38,6 @@
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#define HINIC_TSO_PKT_MAX_SGE 127 /* tso max sge 127 */
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#define HINIC_TSO_SEG_NUM_INVALID(num) ((num) > HINIC_TSO_PKT_MAX_SGE)
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#define HINIC_TX_OUTER_CHECKSUM_FLAG_SET 1
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#define HINIC_TX_OUTER_CHECKSUM_FLAG_NO_SET 0
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/* sizeof(struct hinic_sq_bufdesc) == 16, shift 4 */
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#define HINIC_BUF_DESC_SIZE(nr_descs) (SIZE_8BYTES(((u32)nr_descs) << 4))
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@ -671,7 +668,7 @@ static inline void hinic_xmit_mbuf_cleanup(struct hinic_txq *txq)
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static inline struct hinic_sq_wqe *
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hinic_get_sq_wqe(struct hinic_txq *txq, int wqebb_cnt,
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struct hinic_wqe_info *wqe_info)
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struct hinic_wqe_info *wqe_info)
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{
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u32 cur_pi, end_pi;
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u16 remain_wqebbs;
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@ -758,36 +755,33 @@ hinic_ipv6_phdr_cksum(const struct rte_ipv6_hdr *ipv6_hdr, uint64_t ol_flags)
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return __rte_raw_cksum_reduce(sum);
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}
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static inline void
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hinic_get_pld_offset(struct rte_mbuf *m, struct hinic_tx_offload_info *off_info,
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int outer_cs_flag)
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static inline void hinic_get_outer_cs_pld_offset(struct rte_mbuf *m,
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struct hinic_tx_offload_info *off_info)
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{
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uint64_t ol_flags = m->ol_flags;
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if (outer_cs_flag == 1) {
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if ((ol_flags & PKT_TX_UDP_CKSUM) == PKT_TX_UDP_CKSUM) {
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off_info->payload_offset = m->outer_l2_len +
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m->outer_l3_len + m->l2_len + m->l3_len;
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} else if ((ol_flags & PKT_TX_TCP_CKSUM) ||
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(ol_flags & PKT_TX_TCP_SEG)) {
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off_info->payload_offset = m->outer_l2_len +
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m->outer_l3_len + m->l2_len +
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m->l3_len + m->l4_len;
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}
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} else {
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if ((ol_flags & PKT_TX_UDP_CKSUM) == PKT_TX_UDP_CKSUM) {
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off_info->payload_offset = m->l2_len + m->l3_len;
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} else if ((ol_flags & PKT_TX_TCP_CKSUM) ||
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(ol_flags & PKT_TX_TCP_SEG)) {
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off_info->payload_offset = m->l2_len + m->l3_len +
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m->l4_len;
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}
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}
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if ((ol_flags & PKT_TX_L4_MASK) == PKT_TX_UDP_CKSUM)
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off_info->payload_offset = m->outer_l2_len + m->outer_l3_len +
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m->l2_len + m->l3_len;
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else if ((ol_flags & PKT_TX_TCP_CKSUM) || (ol_flags & PKT_TX_TCP_SEG))
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off_info->payload_offset = m->outer_l2_len + m->outer_l3_len +
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m->l2_len + m->l3_len + m->l4_len;
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}
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static inline void
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hinic_analyze_tx_info(struct rte_mbuf *mbuf,
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struct hinic_tx_offload_info *off_info)
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static inline void hinic_get_pld_offset(struct rte_mbuf *m,
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struct hinic_tx_offload_info *off_info)
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{
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uint64_t ol_flags = m->ol_flags;
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if ((ol_flags & PKT_TX_L4_MASK) == PKT_TX_UDP_CKSUM)
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off_info->payload_offset = m->l2_len + m->l3_len;
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else if ((ol_flags & PKT_TX_TCP_CKSUM) || (ol_flags & PKT_TX_TCP_SEG))
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off_info->payload_offset = m->l2_len + m->l3_len +
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m->l4_len;
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}
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static inline void hinic_analyze_tx_info(struct rte_mbuf *mbuf,
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struct hinic_tx_offload_info *off_info)
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{
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struct rte_ether_hdr *eth_hdr;
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struct rte_vlan_hdr *vlan_hdr;
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@ -817,17 +811,164 @@ hinic_analyze_tx_info(struct rte_mbuf *mbuf,
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}
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}
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static inline int
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hinic_tx_offload_pkt_prepare(struct rte_mbuf *m,
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struct hinic_tx_offload_info *off_info)
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static inline void hinic_analyze_outer_ip_vxlan(struct rte_mbuf *mbuf,
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struct hinic_tx_offload_info *off_info)
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{
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struct rte_ether_hdr *eth_hdr;
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struct rte_vlan_hdr *vlan_hdr;
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struct rte_ipv4_hdr *ipv4_hdr;
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struct rte_udp_hdr *udp_hdr;
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u16 eth_type = 0;
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eth_hdr = rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *);
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eth_type = rte_be_to_cpu_16(eth_hdr->ether_type);
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if (eth_type == RTE_ETHER_TYPE_VLAN) {
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vlan_hdr = (struct rte_vlan_hdr *)(eth_hdr + 1);
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eth_type = rte_be_to_cpu_16(vlan_hdr->eth_proto);
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}
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if (eth_type == RTE_ETHER_TYPE_IPV4) {
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ipv4_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv4_hdr *,
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mbuf->outer_l2_len);
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off_info->outer_l3_type = IPV4_PKT_WITH_CHKSUM_OFFLOAD;
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ipv4_hdr->hdr_checksum = 0;
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udp_hdr = (struct rte_udp_hdr *)((char *)ipv4_hdr +
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mbuf->outer_l3_len);
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udp_hdr->dgram_cksum = 0;
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} else if (eth_type == RTE_ETHER_TYPE_IPV6) {
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off_info->outer_l3_type = IPV6_PKT;
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udp_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_udp_hdr *,
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(mbuf->outer_l2_len +
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mbuf->outer_l3_len));
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udp_hdr->dgram_cksum = 0;
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}
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}
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static inline uint8_t hinic_analyze_l3_type(struct rte_mbuf *mbuf)
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{
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uint8_t l3_type;
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uint64_t ol_flags = mbuf->ol_flags;
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if (ol_flags & PKT_TX_IPV4)
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l3_type = (ol_flags & PKT_TX_IP_CKSUM) ?
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IPV4_PKT_WITH_CHKSUM_OFFLOAD :
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IPV4_PKT_NO_CHKSUM_OFFLOAD;
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else if (ol_flags & PKT_TX_IPV6)
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l3_type = IPV6_PKT;
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else
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l3_type = UNKNOWN_L3TYPE;
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return l3_type;
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}
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static inline void hinic_calculate_tcp_checksum(struct rte_mbuf *mbuf,
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struct hinic_tx_offload_info *off_info,
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uint64_t inner_l3_offset)
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{
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struct rte_ipv4_hdr *ipv4_hdr;
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struct rte_ipv6_hdr *ipv6_hdr;
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struct rte_tcp_hdr *tcp_hdr;
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uint64_t ol_flags = mbuf->ol_flags;
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if (ol_flags & PKT_TX_IPV4) {
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ipv4_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv4_hdr *,
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inner_l3_offset);
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if (ol_flags & PKT_TX_IP_CKSUM)
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ipv4_hdr->hdr_checksum = 0;
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tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv4_hdr +
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mbuf->l3_len);
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tcp_hdr->cksum = hinic_ipv4_phdr_cksum(ipv4_hdr, ol_flags);
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} else {
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ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv6_hdr *,
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inner_l3_offset);
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tcp_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_tcp_hdr *,
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(inner_l3_offset +
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mbuf->l3_len));
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tcp_hdr->cksum = hinic_ipv6_phdr_cksum(ipv6_hdr, ol_flags);
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}
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off_info->inner_l4_type = TCP_OFFLOAD_ENABLE;
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off_info->inner_l4_tcp_udp = 1;
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}
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static inline void hinic_calculate_udp_checksum(struct rte_mbuf *mbuf,
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struct hinic_tx_offload_info *off_info,
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uint64_t inner_l3_offset)
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{
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struct rte_ipv4_hdr *ipv4_hdr;
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struct rte_ipv6_hdr *ipv6_hdr;
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struct rte_udp_hdr *udp_hdr;
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struct rte_ether_hdr *eth_hdr;
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struct rte_vlan_hdr *vlan_hdr;
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u16 eth_type = 0;
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uint64_t ol_flags = mbuf->ol_flags;
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if (ol_flags & PKT_TX_IPV4) {
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ipv4_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv4_hdr *,
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inner_l3_offset);
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if (ol_flags & PKT_TX_IP_CKSUM)
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ipv4_hdr->hdr_checksum = 0;
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udp_hdr = (struct rte_udp_hdr *)((char *)ipv4_hdr +
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mbuf->l3_len);
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udp_hdr->dgram_cksum = hinic_ipv4_phdr_cksum(ipv4_hdr,
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ol_flags);
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} else {
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ipv6_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_ipv6_hdr *,
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inner_l3_offset);
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udp_hdr = rte_pktmbuf_mtod_offset(mbuf, struct rte_udp_hdr *,
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(inner_l3_offset +
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mbuf->l3_len));
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udp_hdr->dgram_cksum = hinic_ipv6_phdr_cksum(ipv6_hdr,
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ol_flags);
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}
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off_info->inner_l4_type = UDP_OFFLOAD_ENABLE;
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off_info->inner_l4_tcp_udp = 1;
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}
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static inline void
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hinic_calculate_sctp_checksum(struct hinic_tx_offload_info *off_info)
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{
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off_info->inner_l4_type = SCTP_OFFLOAD_ENABLE;
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off_info->inner_l4_tcp_udp = 0;
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off_info->inner_l4_len = sizeof(struct rte_sctp_hdr);
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}
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static inline void hinic_calculate_checksum(struct rte_mbuf *mbuf,
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struct hinic_tx_offload_info *off_info,
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uint64_t inner_l3_offset)
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{
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uint64_t ol_flags = mbuf->ol_flags;
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switch (ol_flags & PKT_TX_L4_MASK) {
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case PKT_TX_UDP_CKSUM:
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hinic_calculate_udp_checksum(mbuf, off_info, inner_l3_offset);
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break;
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case PKT_TX_TCP_CKSUM:
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hinic_calculate_tcp_checksum(mbuf, off_info, inner_l3_offset);
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break;
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case PKT_TX_SCTP_CKSUM:
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hinic_calculate_sctp_checksum(off_info);
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break;
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default:
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if (ol_flags & PKT_TX_TCP_SEG)
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hinic_calculate_tcp_checksum(mbuf, off_info,
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inner_l3_offset);
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break;
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}
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}
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static inline int hinic_tx_offload_pkt_prepare(struct rte_mbuf *m,
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struct hinic_tx_offload_info *off_info)
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{
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uint64_t inner_l3_offset;
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uint64_t ol_flags = m->ol_flags;
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@ -836,8 +977,8 @@ hinic_tx_offload_pkt_prepare(struct rte_mbuf *m,
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return 0;
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/* Support only vxlan offload */
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if ((ol_flags & PKT_TX_TUNNEL_MASK) &&
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!(ol_flags & PKT_TX_TUNNEL_VXLAN))
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if (unlikely((ol_flags & PKT_TX_TUNNEL_MASK) &&
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!(ol_flags & PKT_TX_TUNNEL_VXLAN)))
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return -ENOTSUP;
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#ifdef RTE_LIBRTE_ETHDEV_DEBUG
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@ -846,169 +987,61 @@ hinic_tx_offload_pkt_prepare(struct rte_mbuf *m,
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#endif
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if (ol_flags & PKT_TX_TUNNEL_VXLAN) {
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off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
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/* inner_l4_tcp_udp csum should be set to calculate outer
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* udp checksum when vxlan packets without inner l3 and l4
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*/
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off_info->inner_l4_tcp_udp = 1;
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if ((ol_flags & PKT_TX_OUTER_IP_CKSUM) ||
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(ol_flags & PKT_TX_OUTER_IPV6) ||
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(ol_flags & PKT_TX_TCP_SEG)) {
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inner_l3_offset = m->l2_len + m->outer_l2_len +
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m->outer_l3_len;
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m->outer_l3_len;
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off_info->outer_l2_len = m->outer_l2_len;
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off_info->outer_l3_len = m->outer_l3_len;
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/* just support vxlan tunneling pkt */
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off_info->inner_l2_len = m->l2_len - VXLANLEN -
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sizeof(*udp_hdr);
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off_info->inner_l3_len = m->l3_len;
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off_info->inner_l4_len = m->l4_len;
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sizeof(struct rte_udp_hdr);
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off_info->tunnel_length = m->l2_len;
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off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
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hinic_get_pld_offset(m, off_info,
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HINIC_TX_OUTER_CHECKSUM_FLAG_SET);
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hinic_analyze_outer_ip_vxlan(m, off_info);
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hinic_get_outer_cs_pld_offset(m, off_info);
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} else {
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inner_l3_offset = m->l2_len;
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hinic_analyze_tx_info(m, off_info);
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/* just support vxlan tunneling pkt */
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off_info->inner_l2_len = m->l2_len - VXLANLEN -
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sizeof(*udp_hdr) - off_info->outer_l2_len -
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off_info->outer_l3_len;
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off_info->inner_l3_len = m->l3_len;
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off_info->inner_l4_len = m->l4_len;
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sizeof(struct rte_udp_hdr) -
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off_info->outer_l2_len -
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off_info->outer_l3_len;
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off_info->tunnel_length = m->l2_len -
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off_info->outer_l2_len - off_info->outer_l3_len;
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off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
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off_info->outer_l2_len -
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off_info->outer_l3_len;
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off_info->outer_l3_type = IPV4_PKT_NO_CHKSUM_OFFLOAD;
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hinic_get_pld_offset(m, off_info,
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HINIC_TX_OUTER_CHECKSUM_FLAG_NO_SET);
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hinic_get_pld_offset(m, off_info);
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}
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} else {
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inner_l3_offset = m->l2_len;
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off_info->inner_l2_len = m->l2_len;
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off_info->inner_l3_len = m->l3_len;
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off_info->inner_l4_len = m->l4_len;
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off_info->tunnel_type = NOT_TUNNEL;
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hinic_get_pld_offset(m, off_info,
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HINIC_TX_OUTER_CHECKSUM_FLAG_NO_SET);
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hinic_get_pld_offset(m, off_info);
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}
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/* invalid udp or tcp header */
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if (unlikely(off_info->payload_offset > MAX_PLD_OFFSET))
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return -EINVAL;
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/* Process outter udp pseudo-header checksum */
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if ((ol_flags & PKT_TX_TUNNEL_VXLAN) && ((ol_flags & PKT_TX_TCP_SEG) ||
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(ol_flags & PKT_TX_OUTER_IP_CKSUM) ||
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(ol_flags & PKT_TX_OUTER_IPV6))) {
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/* inner_l4_tcp_udp csum should be setted to calculate outter
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* udp checksum when vxlan packets without inner l3 and l4
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*/
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off_info->inner_l4_tcp_udp = 1;
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eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
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eth_type = rte_be_to_cpu_16(eth_hdr->ether_type);
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if (eth_type == RTE_ETHER_TYPE_VLAN) {
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vlan_hdr = (struct rte_vlan_hdr *)(eth_hdr + 1);
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eth_type = rte_be_to_cpu_16(vlan_hdr->eth_proto);
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}
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if (eth_type == RTE_ETHER_TYPE_IPV4) {
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ipv4_hdr =
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rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
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m->outer_l2_len);
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off_info->outer_l3_type = IPV4_PKT_WITH_CHKSUM_OFFLOAD;
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ipv4_hdr->hdr_checksum = 0;
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udp_hdr = (struct rte_udp_hdr *)((char *)ipv4_hdr +
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m->outer_l3_len);
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udp_hdr->dgram_cksum = 0;
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} else if (eth_type == RTE_ETHER_TYPE_IPV6) {
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off_info->outer_l3_type = IPV6_PKT;
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ipv6_hdr =
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rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
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m->outer_l2_len);
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udp_hdr =
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rte_pktmbuf_mtod_offset(m, struct rte_udp_hdr *,
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(m->outer_l2_len +
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m->outer_l3_len));
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udp_hdr->dgram_cksum = 0;
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}
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} else if (ol_flags & PKT_TX_OUTER_IPV4) {
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off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
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off_info->inner_l4_tcp_udp = 1;
|
||||
off_info->outer_l3_type = IPV4_PKT_NO_CHKSUM_OFFLOAD;
|
||||
}
|
||||
|
||||
if (ol_flags & PKT_TX_IPV4)
|
||||
off_info->inner_l3_type = (ol_flags & PKT_TX_IP_CKSUM) ?
|
||||
IPV4_PKT_WITH_CHKSUM_OFFLOAD :
|
||||
IPV4_PKT_NO_CHKSUM_OFFLOAD;
|
||||
else if (ol_flags & PKT_TX_IPV6)
|
||||
off_info->inner_l3_type = IPV6_PKT;
|
||||
off_info->inner_l3_len = m->l3_len;
|
||||
off_info->inner_l4_len = m->l4_len;
|
||||
off_info->inner_l3_type = hinic_analyze_l3_type(m);
|
||||
|
||||
/* Process the pseudo-header checksum */
|
||||
if ((ol_flags & PKT_TX_L4_MASK) == PKT_TX_UDP_CKSUM) {
|
||||
if (ol_flags & PKT_TX_IPV4) {
|
||||
ipv4_hdr =
|
||||
rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
|
||||
inner_l3_offset);
|
||||
|
||||
if (ol_flags & PKT_TX_IP_CKSUM)
|
||||
ipv4_hdr->hdr_checksum = 0;
|
||||
|
||||
udp_hdr = (struct rte_udp_hdr *)((char *)ipv4_hdr +
|
||||
m->l3_len);
|
||||
udp_hdr->dgram_cksum =
|
||||
hinic_ipv4_phdr_cksum(ipv4_hdr, ol_flags);
|
||||
} else {
|
||||
ipv6_hdr =
|
||||
rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
|
||||
inner_l3_offset);
|
||||
|
||||
udp_hdr =
|
||||
rte_pktmbuf_mtod_offset(m, struct rte_udp_hdr *,
|
||||
(inner_l3_offset + m->l3_len));
|
||||
udp_hdr->dgram_cksum =
|
||||
hinic_ipv6_phdr_cksum(ipv6_hdr, ol_flags);
|
||||
}
|
||||
|
||||
off_info->inner_l4_type = UDP_OFFLOAD_ENABLE;
|
||||
off_info->inner_l4_tcp_udp = 1;
|
||||
} else if (((ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) ||
|
||||
(ol_flags & PKT_TX_TCP_SEG)) {
|
||||
if (ol_flags & PKT_TX_IPV4) {
|
||||
ipv4_hdr =
|
||||
rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
|
||||
inner_l3_offset);
|
||||
|
||||
if (ol_flags & PKT_TX_IP_CKSUM)
|
||||
ipv4_hdr->hdr_checksum = 0;
|
||||
|
||||
/* non-TSO tcp */
|
||||
tcp_hdr = (struct rte_tcp_hdr *)((char *)ipv4_hdr +
|
||||
m->l3_len);
|
||||
tcp_hdr->cksum =
|
||||
hinic_ipv4_phdr_cksum(ipv4_hdr, ol_flags);
|
||||
} else {
|
||||
ipv6_hdr =
|
||||
rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
|
||||
inner_l3_offset);
|
||||
/* non-TSO tcp */
|
||||
tcp_hdr =
|
||||
rte_pktmbuf_mtod_offset(m, struct rte_tcp_hdr *,
|
||||
(inner_l3_offset + m->l3_len));
|
||||
tcp_hdr->cksum =
|
||||
hinic_ipv6_phdr_cksum(ipv6_hdr, ol_flags);
|
||||
}
|
||||
|
||||
off_info->inner_l4_type = TCP_OFFLOAD_ENABLE;
|
||||
off_info->inner_l4_tcp_udp = 1;
|
||||
} else if ((ol_flags & PKT_TX_L4_MASK) == PKT_TX_SCTP_CKSUM) {
|
||||
off_info->inner_l4_type = SCTP_OFFLOAD_ENABLE;
|
||||
off_info->inner_l4_tcp_udp = 0;
|
||||
off_info->inner_l4_len = sizeof(struct rte_sctp_hdr);
|
||||
}
|
||||
hinic_calculate_checksum(m, off_info, inner_l3_offset);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user