rte_pktmbuf_pkt_len(txm) <= txq->txdata_desc_size) {
struct Vmxnet3_TxDataDesc *tdd;
+ /* Skip empty packets */
+ if (unlikely(rte_pktmbuf_pkt_len(txm) == 0)) {
+ txq->stats.drop_total++;
+ rte_pktmbuf_free(txm);
+ nb_tx++;
+ continue;
+ }
+
tdd = (struct Vmxnet3_TxDataDesc *)
((uint8 *)txq->data_ring.base +
txq->cmd_ring.next2fill *
* maximum size of mbuf segment size.
*/
gdesc = txq->cmd_ring.base + txq->cmd_ring.next2fill;
+
+ /* Skip empty segments */
+ if (unlikely(m_seg->data_len == 0))
+ continue;
+
if (copy_size) {
uint64 offset =
(uint64)txq->cmd_ring.next2fill *
return i;
}
-
-/* Receive side checksum and other offloads */
-static void
-vmxnet3_rx_offload(const Vmxnet3_RxCompDesc *rcd, struct rte_mbuf *rxm)
+/* MSS not provided by vmxnet3, guess one with available information */
+static uint16_t
+vmxnet3_guess_mss(struct vmxnet3_hw *hw, const Vmxnet3_RxCompDesc *rcd,
+ struct rte_mbuf *rxm)
{
- /* Check for RSS */
- if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) {
- rxm->ol_flags |= PKT_RX_RSS_HASH;
- rxm->hash.rss = rcd->rssHash;
- }
+ uint32_t hlen, slen;
+ struct ipv4_hdr *ipv4_hdr;
+ struct ipv6_hdr *ipv6_hdr;
+ struct tcp_hdr *tcp_hdr;
+ char *ptr;
+
+ RTE_ASSERT(rcd->tcp);
+
+ ptr = rte_pktmbuf_mtod(rxm, char *);
+ slen = rte_pktmbuf_data_len(rxm);
+ hlen = sizeof(struct ether_hdr);
- /* Check packet type, checksum errors, etc. Only support IPv4 for now. */
if (rcd->v4) {
- struct ether_hdr *eth = rte_pktmbuf_mtod(rxm, struct ether_hdr *);
- struct ipv4_hdr *ip = (struct ipv4_hdr *)(eth + 1);
+ if (unlikely(slen < hlen + sizeof(struct ipv4_hdr)))
+ return hw->mtu - sizeof(struct ipv4_hdr)
+ - sizeof(struct tcp_hdr);
+
+ ipv4_hdr = (struct ipv4_hdr *)(ptr + hlen);
+ hlen += (ipv4_hdr->version_ihl & IPV4_HDR_IHL_MASK) *
+ IPV4_IHL_MULTIPLIER;
+ } else if (rcd->v6) {
+ if (unlikely(slen < hlen + sizeof(struct ipv6_hdr)))
+ return hw->mtu - sizeof(struct ipv6_hdr) -
+ sizeof(struct tcp_hdr);
+
+ ipv6_hdr = (struct ipv6_hdr *)(ptr + hlen);
+ hlen += sizeof(struct ipv6_hdr);
+ if (unlikely(ipv6_hdr->proto != IPPROTO_TCP)) {
+ int frag;
+
+ rte_net_skip_ip6_ext(ipv6_hdr->proto, rxm,
+ &hlen, &frag);
+ }
+ }
+
+ if (unlikely(slen < hlen + sizeof(struct tcp_hdr)))
+ return hw->mtu - hlen - sizeof(struct tcp_hdr) +
+ sizeof(struct ether_hdr);
- if (((ip->version_ihl & 0xf) << 2) > (int)sizeof(struct ipv4_hdr))
- rxm->packet_type = RTE_PTYPE_L3_IPV4_EXT;
- else
- rxm->packet_type = RTE_PTYPE_L3_IPV4;
+ tcp_hdr = (struct tcp_hdr *)(ptr + hlen);
+ hlen += (tcp_hdr->data_off & 0xf0) >> 2;
- if (!rcd->cnc) {
- if (!rcd->ipc)
- rxm->ol_flags |= PKT_RX_IP_CKSUM_BAD;
+ if (rxm->udata64 > 1)
+ return (rte_pktmbuf_pkt_len(rxm) - hlen +
+ rxm->udata64 - 1) / rxm->udata64;
+ else
+ return hw->mtu - hlen + sizeof(struct ether_hdr);
+}
- if ((rcd->tcp || rcd->udp) && !rcd->tuc)
- rxm->ol_flags |= PKT_RX_L4_CKSUM_BAD;
+/* Receive side checksum and other offloads */
+static inline void
+vmxnet3_rx_offload(struct vmxnet3_hw *hw, const Vmxnet3_RxCompDesc *rcd,
+ struct rte_mbuf *rxm, const uint8_t sop)
+{
+ uint64_t ol_flags = rxm->ol_flags;
+ uint32_t packet_type = rxm->packet_type;
+
+ /* Offloads set in sop */
+ if (sop) {
+ /* Set packet type */
+ packet_type |= RTE_PTYPE_L2_ETHER;
+
+ /* Check large packet receive */
+ if (VMXNET3_VERSION_GE_2(hw) &&
+ rcd->type == VMXNET3_CDTYPE_RXCOMP_LRO) {
+ const Vmxnet3_RxCompDescExt *rcde =
+ (const Vmxnet3_RxCompDescExt *)rcd;
+
+ rxm->tso_segsz = rcde->mss;
+ rxm->udata64 = rcde->segCnt;
+ ol_flags |= PKT_RX_LRO;
+ }
+ } else { /* Offloads set in eop */
+ /* Check for RSS */
+ if (rcd->rssType != VMXNET3_RCD_RSS_TYPE_NONE) {
+ ol_flags |= PKT_RX_RSS_HASH;
+ rxm->hash.rss = rcd->rssHash;
+ }
+
+ /* Check for hardware stripped VLAN tag */
+ if (rcd->ts) {
+ ol_flags |= (PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
+ rxm->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
+ }
+
+ /* Check packet type, checksum errors, etc. */
+ if (rcd->cnc) {
+ ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
+ } else {
+ if (rcd->v4) {
+ packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+
+ if (rcd->ipc)
+ ol_flags |= PKT_RX_IP_CKSUM_GOOD;
+ else
+ ol_flags |= PKT_RX_IP_CKSUM_BAD;
+
+ if (rcd->tuc) {
+ ol_flags |= PKT_RX_L4_CKSUM_GOOD;
+ if (rcd->tcp)
+ packet_type |= RTE_PTYPE_L4_TCP;
+ else
+ packet_type |= RTE_PTYPE_L4_UDP;
+ } else {
+ if (rcd->tcp) {
+ packet_type |= RTE_PTYPE_L4_TCP;
+ ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ } else if (rcd->udp) {
+ packet_type |= RTE_PTYPE_L4_UDP;
+ ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ }
+ }
+ } else if (rcd->v6) {
+ packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+
+ if (rcd->tuc) {
+ ol_flags |= PKT_RX_L4_CKSUM_GOOD;
+ if (rcd->tcp)
+ packet_type |= RTE_PTYPE_L4_TCP;
+ else
+ packet_type |= RTE_PTYPE_L4_UDP;
+ } else {
+ if (rcd->tcp) {
+ packet_type |= RTE_PTYPE_L4_TCP;
+ ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ } else if (rcd->udp) {
+ packet_type |= RTE_PTYPE_L4_UDP;
+ ol_flags |= PKT_RX_L4_CKSUM_BAD;
+ }
+ }
+ } else {
+ packet_type |= RTE_PTYPE_UNKNOWN;
+ }
+
+ /* Old variants of vmxnet3 do not provide MSS */
+ if ((ol_flags & PKT_RX_LRO) && rxm->tso_segsz == 0)
+ rxm->tso_segsz = vmxnet3_guess_mss(hw,
+ rcd, rxm);
}
- } else {
- rxm->packet_type = RTE_PTYPE_UNKNOWN;
}
+
+ rxm->ol_flags = ol_flags;
+ rxm->packet_type = packet_type;
}
/*
rxm->data_off = RTE_PKTMBUF_HEADROOM;
rxm->ol_flags = 0;
rxm->vlan_tci = 0;
+ rxm->packet_type = 0;
/*
* If this is the first buffer of the received packet,
}
rxq->start_seg = rxm;
- vmxnet3_rx_offload(rcd, rxm);
+ rxq->last_seg = rxm;
+ vmxnet3_rx_offload(hw, rcd, rxm, 1);
} else {
struct rte_mbuf *start = rxq->start_seg;
RTE_ASSERT(rxd->btype == VMXNET3_RXD_BTYPE_BODY);
- start->pkt_len += rxm->data_len;
- start->nb_segs++;
+ if (rxm->data_len) {
+ start->pkt_len += rxm->data_len;
+ start->nb_segs++;
- rxq->last_seg->next = rxm;
+ rxq->last_seg->next = rxm;
+ rxq->last_seg = rxm;
+ } else {
+ rte_pktmbuf_free_seg(rxm);
+ }
}
- rxq->last_seg = rxm;
if (rcd->eop) {
struct rte_mbuf *start = rxq->start_seg;
- /* Check for hardware stripped VLAN tag */
- if (rcd->ts) {
- start->ol_flags |= (PKT_RX_VLAN |
- PKT_RX_VLAN_STRIPPED);
- start->vlan_tci = rte_le_to_cpu_16((uint16_t)rcd->tci);
- }
-
+ vmxnet3_rx_offload(hw, rcd, start, 0);
rx_pkts[nb_rx++] = start;
rxq->start_seg = NULL;
}
uint16_t queue_idx,
uint16_t nb_desc,
unsigned int socket_id,
- const struct rte_eth_txconf *tx_conf)
+ const struct rte_eth_txconf *tx_conf __rte_unused)
{
struct vmxnet3_hw *hw = dev->data->dev_private;
const struct rte_memzone *mz;
PMD_INIT_FUNC_TRACE();
- if ((tx_conf->txq_flags & ETH_TXQ_FLAGS_NOXSUMSCTP) !=
- ETH_TXQ_FLAGS_NOXSUMSCTP) {
- PMD_INIT_LOG(ERR, "SCTP checksum offload not supported");
- return -EINVAL;
- }
-
txq = rte_zmalloc("ethdev_tx_queue", sizeof(struct vmxnet3_tx_queue),
RTE_CACHE_LINE_SIZE);
if (txq == NULL) {
txq->queue_id = queue_idx;
txq->port_id = dev->data->port_id;
- txq->shared = &hw->tqd_start[queue_idx];
+ txq->shared = NULL; /* set in vmxnet3_setup_driver_shared() */
txq->hw = hw;
txq->qid = queue_idx;
txq->stopped = TRUE;
rxq->mp = mp;
rxq->queue_id = queue_idx;
rxq->port_id = dev->data->port_id;
- rxq->shared = &hw->rqd_start[queue_idx];
+ rxq->shared = NULL; /* set in vmxnet3_setup_driver_shared() */
rxq->hw = hw;
rxq->qid1 = queue_idx;
rxq->qid2 = queue_idx + hw->num_rx_queues;
Code Review / deb_dpdk.git / blobdiff