((desc_flags & EFX_PKT_UDP) ? RTE_PTYPE_L4_UDP : 0);
}
+static void
+sfc_rx_set_rss_hash(struct sfc_rxq *rxq, unsigned int flags, struct rte_mbuf *m)
+{
+#if EFSYS_OPT_RX_SCALE
+ uint8_t *mbuf_data;
+
+
+ if ((rxq->flags & SFC_RXQ_RSS_HASH) == 0)
+ return;
+
+ mbuf_data = rte_pktmbuf_mtod(m, uint8_t *);
+
+ if (flags & (EFX_PKT_IPV4 | EFX_PKT_IPV6)) {
+ m->hash.rss = efx_pseudo_hdr_hash_get(rxq->common,
+ EFX_RX_HASHALG_TOEPLITZ,
+ mbuf_data);
+
+ m->ol_flags |= PKT_RX_RSS_HASH;
+ }
+#endif
+}
+
uint16_t
sfc_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
{
unsigned int prefix_size = rxq->prefix_size;
unsigned int done_pkts = 0;
boolean_t discard_next = B_FALSE;
+ struct rte_mbuf *scatter_pkt = NULL;
if (unlikely((rxq->state & SFC_RXQ_RUNNING) == 0))
return 0;
if (desc_flags & (EFX_ADDR_MISMATCH | EFX_DISCARD))
goto discard;
- if (desc_flags & EFX_PKT_CONT)
- goto discard;
-
if (desc_flags & EFX_PKT_PREFIX_LEN) {
uint16_t tmp_size;
int rc __rte_unused;
seg_len = rxd->size - prefix_size;
}
- m->data_off += prefix_size;
rte_pktmbuf_data_len(m) = seg_len;
rte_pktmbuf_pkt_len(m) = seg_len;
+ if (scatter_pkt != NULL) {
+ if (rte_pktmbuf_chain(scatter_pkt, m) != 0) {
+ rte_mempool_put(rxq->refill_mb_pool,
+ scatter_pkt);
+ goto discard;
+ }
+ /* The packet to deliver */
+ m = scatter_pkt;
+ }
+
+ if (desc_flags & EFX_PKT_CONT) {
+ /* The packet is scattered, more fragments to come */
+ scatter_pkt = m;
+ /* Futher fragments have no prefix */
+ prefix_size = 0;
+ continue;
+ }
+
+ /* Scattered packet is done */
+ scatter_pkt = NULL;
+ /* The first fragment of the packet has prefix */
+ prefix_size = rxq->prefix_size;
+
m->ol_flags = sfc_rx_desc_flags_to_offload_flags(desc_flags);
m->packet_type = sfc_rx_desc_flags_to_packet_type(desc_flags);
+ /*
+ * Extract RSS hash from the packet prefix and
+ * set the corresponding field (if needed and possible)
+ */
+ sfc_rx_set_rss_hash(rxq, desc_flags, m);
+
+ m->data_off += prefix_size;
+
*rx_pkts++ = m;
done_pkts++;
continue;
rxd->mbuf = NULL;
}
+ /* pending is only moved when entire packet is received */
+ SFC_ASSERT(scatter_pkt == NULL);
+
rxq->completed = completed;
sfc_rx_qrefill(rxq);
sfc_rx_qpurge(rxq);
}
+static int
+sfc_rx_default_rxq_set_filter(struct sfc_adapter *sa, struct sfc_rxq *rxq)
+{
+ boolean_t rss = (sa->rss_channels > 1) ? B_TRUE : B_FALSE;
+ struct sfc_port *port = &sa->port;
+ int rc;
+
+ /*
+ * If promiscuous or all-multicast mode has been requested, setting
+ * filter for the default Rx queue might fail, in particular, while
+ * running over PCI function which is not a member of corresponding
+ * privilege groups; if this occurs, few iterations will be made to
+ * repeat this step without promiscuous and all-multicast flags set
+ */
+retry:
+ rc = efx_mac_filter_default_rxq_set(sa->nic, rxq->common, rss);
+ if (rc == 0)
+ return 0;
+ else if (rc != EOPNOTSUPP)
+ return rc;
+
+ if (port->promisc) {
+ sfc_warn(sa, "promiscuous mode has been requested, "
+ "but the HW rejects it");
+ sfc_warn(sa, "promiscuous mode will be disabled");
+
+ port->promisc = B_FALSE;
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ return rc;
+
+ goto retry;
+ }
+
+ if (port->allmulti) {
+ sfc_warn(sa, "all-multicast mode has been requested, "
+ "but the HW rejects it");
+ sfc_warn(sa, "all-multicast mode will be disabled");
+
+ port->allmulti = B_FALSE;
+ rc = sfc_set_rx_mode(sa);
+ if (rc != 0)
+ return rc;
+
+ goto retry;
+ }
+
+ return rc;
+}
+
int
sfc_rx_qstart(struct sfc_adapter *sa, unsigned int sw_index)
{
sfc_rx_qrefill(rxq);
if (sw_index == 0) {
- rc = efx_mac_filter_default_rxq_set(sa->nic, rxq->common,
- B_FALSE);
+ rc = sfc_rx_default_rxq_set_filter(sa, rxq);
if (rc != 0)
goto fail_mac_filter_default_rxq_set;
}
rxq_info = &sa->rxq_info[sw_index];
rxq = rxq_info->rxq;
+
+ if (rxq->state == SFC_RXQ_INITIALIZED)
+ return;
SFC_ASSERT(rxq->state & SFC_RXQ_STARTED);
/* It seems to be used by DPDK for debug purposes only ('rte_ether') */
rc = EINVAL;
}
- if (rx_conf->rx_deferred_start != 0) {
- sfc_err(sa, "RxQ deferred start is not supported");
- rc = EINVAL;
- }
-
return rc;
}
SFC_ASSERT(nb_rx_desc <= rxq_info->max_entries);
rxq_info->entries = nb_rx_desc;
- rxq_info->type = EFX_RXQ_TYPE_DEFAULT;
+ rxq_info->type =
+ sa->eth_dev->data->dev_conf.rxmode.enable_scatter ?
+ EFX_RXQ_TYPE_SCATTER : EFX_RXQ_TYPE_DEFAULT;
evq_index = sfc_evq_index_by_rxq_sw_index(sa, sw_index);
rxq->batch_max = encp->enc_rx_batch_max;
rxq->prefix_size = encp->enc_rx_prefix_size;
+#if EFSYS_OPT_RX_SCALE
+ if (sa->hash_support == EFX_RX_HASH_AVAILABLE)
+ rxq->flags |= SFC_RXQ_RSS_HASH;
+#endif
+
rxq->state = SFC_RXQ_INITIALIZED;
rxq_info->rxq = rxq;
+ rxq_info->deferred_start = (rx_conf->rx_deferred_start != 0);
return 0;
rte_free(rxq);
}
+#if EFSYS_OPT_RX_SCALE
+efx_rx_hash_type_t
+sfc_rte_to_efx_hash_type(uint64_t rss_hf)
+{
+ efx_rx_hash_type_t efx_hash_types = 0;
+
+ if ((rss_hf & (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
+ ETH_RSS_NONFRAG_IPV4_OTHER)) != 0)
+ efx_hash_types |= EFX_RX_HASH_IPV4;
+
+ if ((rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) != 0)
+ efx_hash_types |= EFX_RX_HASH_TCPIPV4;
+
+ if ((rss_hf & (ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
+ ETH_RSS_NONFRAG_IPV6_OTHER | ETH_RSS_IPV6_EX)) != 0)
+ efx_hash_types |= EFX_RX_HASH_IPV6;
+
+ if ((rss_hf & (ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_IPV6_TCP_EX)) != 0)
+ efx_hash_types |= EFX_RX_HASH_TCPIPV6;
+
+ return efx_hash_types;
+}
+
+uint64_t
+sfc_efx_to_rte_hash_type(efx_rx_hash_type_t efx_hash_types)
+{
+ uint64_t rss_hf = 0;
+
+ if ((efx_hash_types & EFX_RX_HASH_IPV4) != 0)
+ rss_hf |= (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 |
+ ETH_RSS_NONFRAG_IPV4_OTHER);
+
+ if ((efx_hash_types & EFX_RX_HASH_TCPIPV4) != 0)
+ rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
+
+ if ((efx_hash_types & EFX_RX_HASH_IPV6) != 0)
+ rss_hf |= (ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 |
+ ETH_RSS_NONFRAG_IPV6_OTHER | ETH_RSS_IPV6_EX);
+
+ if ((efx_hash_types & EFX_RX_HASH_TCPIPV6) != 0)
+ rss_hf |= (ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_IPV6_TCP_EX);
+
+ return rss_hf;
+}
+#endif
+
+static int
+sfc_rx_rss_config(struct sfc_adapter *sa)
+{
+ int rc = 0;
+
+#if EFSYS_OPT_RX_SCALE
+ if (sa->rss_channels > 1) {
+ rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
+ sa->rss_hash_types, B_TRUE);
+ if (rc != 0)
+ goto finish;
+
+ rc = efx_rx_scale_key_set(sa->nic, sa->rss_key,
+ sizeof(sa->rss_key));
+ if (rc != 0)
+ goto finish;
+
+ rc = efx_rx_scale_tbl_set(sa->nic, sa->rss_tbl,
+ sizeof(sa->rss_tbl));
+ }
+
+finish:
+#endif
+ return rc;
+}
+
int
sfc_rx_start(struct sfc_adapter *sa)
{
if (rc != 0)
goto fail_rx_init;
+ rc = sfc_rx_rss_config(sa);
+ if (rc != 0)
+ goto fail_rss_config;
+
for (sw_index = 0; sw_index < sa->rxq_count; ++sw_index) {
- rc = sfc_rx_qstart(sa, sw_index);
- if (rc != 0)
- goto fail_rx_qstart;
+ if ((!sa->rxq_info[sw_index].deferred_start ||
+ sa->rxq_info[sw_index].deferred_started)) {
+ rc = sfc_rx_qstart(sa, sw_index);
+ if (rc != 0)
+ goto fail_rx_qstart;
+ }
}
return 0;
while (sw_index-- > 0)
sfc_rx_qstop(sa, sw_index);
+fail_rss_config:
efx_rx_fini(sa->nic);
fail_rx_init:
case ETH_MQ_RX_NONE:
/* No special checks are required */
break;
+#if EFSYS_OPT_RX_SCALE
+ case ETH_MQ_RX_RSS:
+ if (sa->rss_support == EFX_RX_SCALE_UNAVAILABLE) {
+ sfc_err(sa, "RSS is not available");
+ rc = EINVAL;
+ }
+ break;
+#endif
default:
sfc_err(sa, "Rx multi-queue mode %u not supported",
rxmode->mq_mode);
rxmode->hw_strip_crc = 1;
}
- if (rxmode->enable_scatter) {
- sfc_err(sa, "Scatter on Rx not supported");
- rc = EINVAL;
- }
-
if (rxmode->enable_lro) {
sfc_err(sa, "LRO not supported");
rc = EINVAL;
goto fail_rx_qinit_info;
}
+#if EFSYS_OPT_RX_SCALE
+ sa->rss_channels = (dev_conf->rxmode.mq_mode == ETH_MQ_RX_RSS) ?
+ MIN(sa->rxq_count, EFX_MAXRSS) : 1;
+
+ if (sa->rss_channels > 1) {
+ for (sw_index = 0; sw_index < EFX_RSS_TBL_SIZE; ++sw_index)
+ sa->rss_tbl[sw_index] = sw_index % sa->rss_channels;
+ }
+#endif
+
return 0;
fail_rx_qinit_info:
git.droids-corp.org / dpdk.git / blobdiff