From: Xiaoyun Wang <cloud.wangxiao...@huawei.com>
This patch supports inner L3 checksum offload.
Signed-off-by: Ziyang Xuan <xuanziya...@huawei.com>
---
drivers/net/hinic/hinic_pmd_tx.c | 192 ++++++++++++++++++++++++---------------
1 file changed, 121 insertions(+), 71 deletions(-)
diff --git a/drivers/net/hinic/hinic_pmd_tx.c b/drivers/net/hinic/hinic_pmd_tx.c
index 0ef7add..155ea61 100644
--- a/drivers/net/hinic/hinic_pmd_tx.c
+++ b/drivers/net/hinic/hinic_pmd_tx.c
@@ -20,6 +20,9 @@
#include "hinic_pmd_tx.h"
/* packet header and tx offload info */
+#define ETHER_LEN_NO_VLAN 14
+#define ETHER_LEN_WITH_VLAN 18
+#define HEADER_LEN_OFFSET 2
#define VXLANLEN 8
#define MAX_PLD_OFFSET 221
#define MAX_SINGLE_SGE_SIZE 65536
@@ -34,6 +37,9 @@
#define HINIC_TSO_PKT_MAX_SGE 127 /* tso max sge 127 */
#define HINIC_TSO_SEG_NUM_INVALID(num) ((num) > HINIC_TSO_PKT_MAX_SGE)
+#define HINIC_TX_OUTER_CHECKSUM_FLAG_SET 1
+#define HINIC_TX_OUTER_CHECKSUM_FLAG_NO_SET 0
+
/* sizeof(struct hinic_sq_bufdesc) == 16, shift 4 */
#define HINIC_BUF_DESC_SIZE(nr_descs) (SIZE_8BYTES(((u32)nr_descs) << 4))
@@ -476,16 +482,16 @@ static inline bool hinic_is_tso_sge_valid(struct rte_mbuf
*mbuf,
hinic_set_l4_csum_info(struct hinic_sq_task *task,
u32 *queue_info, struct hinic_tx_offload_info *poff_info)
{
- u32 tcp_udp_cs, sctp;
+ u32 tcp_udp_cs, sctp = 0;
u16 l2hdr_len;
- sctp = 0;
if (unlikely(poff_info->inner_l4_type == SCTP_OFFLOAD_ENABLE))
sctp = 1;
tcp_udp_cs = poff_info->inner_l4_tcp_udp;
- if (poff_info->tunnel_type == TUNNEL_UDP_NO_CSUM) {
+ if (poff_info->tunnel_type == TUNNEL_UDP_CSUM ||
+ poff_info->tunnel_type == TUNNEL_UDP_NO_CSUM) {
l2hdr_len = poff_info->outer_l2_len;
task->pkt_info2 |=
@@ -665,50 +671,6 @@ static inline void hinic_xmit_mbuf_cleanup(struct
hinic_txq *txq)
return (struct hinic_sq_wqe *)WQ_WQE_ADDR(wq, cur_pi);
}
-static inline int
-hinic_validate_tx_offload(const struct rte_mbuf *m)
-{
- uint64_t ol_flags = m->ol_flags;
- uint64_t inner_l3_offset = m->l2_len;
-
- /* just support vxlan offload */
- if ((ol_flags & PKT_TX_TUNNEL_MASK) &&
- !(ol_flags & PKT_TX_TUNNEL_VXLAN))
- return -ENOTSUP;
-
- if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
- inner_l3_offset += m->outer_l2_len + m->outer_l3_len;
-
- /* Headers are fragmented */
- if (rte_pktmbuf_data_len(m) < inner_l3_offset + m->l3_len + m->l4_len)
- return -ENOTSUP;
-
- /* IP checksum can be counted only for IPv4 packet */
- if ((ol_flags & PKT_TX_IP_CKSUM) && (ol_flags & PKT_TX_IPV6))
- return -EINVAL;
-
- /* IP type not set when required */
- if (ol_flags & (PKT_TX_L4_MASK | PKT_TX_TCP_SEG)) {
- if (!(ol_flags & (PKT_TX_IPV4 | PKT_TX_IPV6)))
- return -EINVAL;
- }
-
- /* Check requirements for TSO packet */
- if (ol_flags & PKT_TX_TCP_SEG) {
- if (m->tso_segsz == 0 ||
- ((ol_flags & PKT_TX_IPV4) &&
- !(ol_flags & PKT_TX_IP_CKSUM)))
- return -EINVAL;
- }
-
- /* PKT_TX_OUTER_IP_CKSUM set for non outer IPv4 packet. */
- if ((ol_flags & PKT_TX_OUTER_IP_CKSUM) &&
- !(ol_flags & PKT_TX_OUTER_IPV4))
- return -EINVAL;
-
- return 0;
-}
-
static inline uint16_t
hinic_ipv4_phdr_cksum(const struct rte_ipv4_hdr *ipv4_hdr, uint64_t ol_flags)
{
@@ -760,6 +722,67 @@ static inline void hinic_xmit_mbuf_cleanup(struct
hinic_txq *txq)
return __rte_raw_cksum_reduce(sum);
}
+static inline void
+hinic_get_pld_offset(struct rte_mbuf *m, struct hinic_tx_offload_info
*off_info,
+ int outer_cs_flag)
+{
+ uint64_t ol_flags = m->ol_flags;
+
+ if (outer_cs_flag == 1) {
+ if ((ol_flags & PKT_TX_UDP_CKSUM) == PKT_TX_UDP_CKSUM) {
+ off_info->payload_offset = m->outer_l2_len +
+ m->outer_l3_len + m->l2_len + m->l3_len;
+ } else if ((ol_flags & PKT_TX_TCP_CKSUM) ||
+ (ol_flags & PKT_TX_TCP_SEG)) {
+ off_info->payload_offset = m->outer_l2_len +
+ m->outer_l3_len + m->l2_len +
+ m->l3_len + m->l4_len;
+ }
+ } else {
+ if ((ol_flags & PKT_TX_UDP_CKSUM) == PKT_TX_UDP_CKSUM) {
+ off_info->payload_offset = m->l2_len + m->l3_len;
+ } else if ((ol_flags & PKT_TX_TCP_CKSUM) ||
+ (ol_flags & PKT_TX_TCP_SEG)) {
+ off_info->payload_offset = m->l2_len + m->l3_len +
+ m->l4_len;
+ }
+ }
+}
+
+static inline void
+hinic_analyze_tx_info(struct rte_mbuf *mbuf,
+ struct hinic_tx_offload_info *off_info)
+{
+ struct rte_ether_hdr *eth_hdr;
+ struct rte_vlan_hdr *vlan_hdr;
+ struct rte_ipv4_hdr *ip4h;
+ u16 ethertype, l3_proto;
+ u8 *hdr;
+
+ hdr = (u8 *)rte_pktmbuf_mtod(mbuf, u8*);
+ eth_hdr = (struct rte_ether_hdr *)hdr;
+ ethertype = rte_be_to_cpu_16(eth_hdr->ether_type);
+
+ if (ethertype == RTE_ETHER_TYPE_VLAN) {
+ off_info->outer_l2_len = ETHER_LEN_WITH_VLAN;
+ vlan_hdr = (struct rte_vlan_hdr *)(hdr + 1);
+ ethertype = rte_be_to_cpu_16(vlan_hdr->eth_proto);
+ } else {
+ off_info->outer_l2_len = ETHER_LEN_NO_VLAN;
+ }
+
+ l3_proto = ethertype;
+
+ if (l3_proto == RTE_ETHER_TYPE_IPV4) {
+ ip4h = (struct rte_ipv4_hdr *)(hdr + off_info->outer_l2_len);
+ off_info->outer_l3_len = (ip4h->version_ihl & 0xf) <<
+ HEADER_LEN_OFFSET;
+ } else if (l3_proto == RTE_ETHER_TYPE_IPV6) {
+ /* not support ipv6 extension header */
+ off_info->outer_l3_len = sizeof(struct rte_ipv6_hdr);
+ }
+}
+
static inline int
hinic_tx_offload_pkt_prepare(struct rte_mbuf *m,
struct hinic_tx_offload_info *off_info)
@@ -771,42 +794,66 @@ static inline void hinic_xmit_mbuf_cleanup(struct
hinic_txq *txq)
struct rte_ether_hdr *eth_hdr;
struct rte_vlan_hdr *vlan_hdr;
u16 eth_type = 0;
- uint64_t inner_l3_offset = m->l2_len;
+ uint64_t inner_l3_offset;
uint64_t ol_flags = m->ol_flags;
- /* Does packet set any of available offloads */
+ /* Check packet set any of available offloads */
if (!(ol_flags & HINIC_TX_CKSUM_OFFLOAD_MASK))
return 0;
- if (unlikely(hinic_validate_tx_offload(m)))
+ /* just support vxlan offload */
+ if ((ol_flags & PKT_TX_TUNNEL_MASK) &&
+ !(ol_flags & PKT_TX_TUNNEL_VXLAN))
+ return -ENOTSUP;
+
+#ifdef RTE_LIBRTE_ETHDEV_DEBUG
+ if (rte_validate_tx_offload(m) != 0)
return -EINVAL;
+#endif
- if ((ol_flags & PKT_TX_OUTER_IP_CKSUM) ||
- (ol_flags & PKT_TX_OUTER_IPV6) ||
- (ol_flags & PKT_TX_TUNNEL_VXLAN)) {
- inner_l3_offset += m->outer_l2_len + m->outer_l3_len;
- off_info->outer_l2_len = m->outer_l2_len;
- off_info->outer_l3_len = m->outer_l3_len;
- /* just support vxlan tunneling pkt */
- off_info->inner_l2_len = m->l2_len - VXLANLEN -
- sizeof(struct rte_udp_hdr);
- off_info->inner_l3_len = m->l3_len;
- off_info->inner_l4_len = m->l4_len;
- off_info->tunnel_length = m->l2_len;
- off_info->payload_offset = m->outer_l2_len +
- m->outer_l3_len + m->l2_len + m->l3_len;
- off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
+ if (ol_flags & PKT_TX_TUNNEL_VXLAN) {
+ if ((ol_flags & PKT_TX_OUTER_IP_CKSUM) ||
+ (ol_flags & PKT_TX_OUTER_IPV6)) {
+ inner_l3_offset = m->l2_len + m->outer_l2_len +
+ m->outer_l3_len;
+ off_info->outer_l2_len = m->outer_l2_len;
+ off_info->outer_l3_len = m->outer_l3_len;
+ /* just support vxlan tunneling pkt */
+ off_info->inner_l2_len = m->l2_len - VXLANLEN -
+ sizeof(*udp_hdr);
+ off_info->inner_l3_len = m->l3_len;
+ off_info->inner_l4_len = m->l4_len;
+ off_info->tunnel_length = m->l2_len;
+ off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
+
+ hinic_get_pld_offset(m, off_info,
+ HINIC_TX_OUTER_CHECKSUM_FLAG_SET);
+ } else {
+ inner_l3_offset = m->l2_len;
+ hinic_analyze_tx_info(m, off_info);
+ /* just support vxlan tunneling pkt */
+ off_info->inner_l2_len = m->l2_len - VXLANLEN -
+ sizeof(*udp_hdr) - off_info->outer_l2_len -
+ off_info->outer_l3_len;
+ off_info->inner_l3_len = m->l3_len;
+ off_info->inner_l4_len = m->l4_len;
+ off_info->tunnel_length = m->l2_len -
+ off_info->outer_l2_len - off_info->outer_l3_len;
+ off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
+
+ hinic_get_pld_offset(m, off_info,
+ HINIC_TX_OUTER_CHECKSUM_FLAG_NO_SET);
+ }
} else {
+ inner_l3_offset = m->l2_len;
off_info->inner_l2_len = m->l2_len;
off_info->inner_l3_len = m->l3_len;
off_info->inner_l4_len = m->l4_len;
off_info->tunnel_type = NOT_TUNNEL;
- off_info->payload_offset = m->l2_len + m->l3_len;
- }
- if (((ol_flags & PKT_TX_L4_MASK) != PKT_TX_SCTP_CKSUM) &&
- ((ol_flags & PKT_TX_L4_MASK) != PKT_TX_UDP_CKSUM))
- off_info->payload_offset += m->l4_len;
+ hinic_get_pld_offset(m, off_info,
+ HINIC_TX_OUTER_CHECKSUM_FLAG_NO_SET);
+ }
/* invalid udp or tcp header */
if (unlikely(off_info->payload_offset > MAX_PLD_OFFSET))
@@ -855,6 +902,10 @@ static inline void hinic_xmit_mbuf_cleanup(struct
hinic_txq *txq)
udp_hdr->dgram_cksum =
hinic_ipv6_phdr_cksum(ipv6_hdr, ol_flags);
}
+ } else if (ol_flags & PKT_TX_OUTER_IPV4) {
+ off_info->tunnel_type = TUNNEL_UDP_NO_CSUM;
+ off_info->inner_l4_tcp_udp = 1;
+ off_info->outer_l3_type = IPV4_PKT_NO_CHKSUM_OFFLOAD;
}
if (ol_flags & PKT_TX_IPV4)
@@ -892,7 +943,6 @@ static inline void hinic_xmit_mbuf_cleanup(struct hinic_txq
*txq)
off_info->inner_l4_type = UDP_OFFLOAD_ENABLE;
off_info->inner_l4_tcp_udp = 1;
- off_info->inner_l4_len = sizeof(struct rte_udp_hdr);
} else if (((ol_flags & PKT_TX_L4_MASK) == PKT_TX_TCP_CKSUM) ||
(ol_flags & PKT_TX_TCP_SEG)) {
if (ol_flags & PKT_TX_IPV4) {
--
1.8.3.1
