From: Rafal Kozik Date: Wed, 17 Jan 2018 08:23:44 +0000 (+0100) Subject: net/ena: convert to new Tx offloads API X-Git-Tag: spdx-start~74 X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=56b8b9b7e5d2d682d672d7d2317b8c74dc5d371e net/ena: convert to new Tx offloads API Ethdev Tx offloads API has changed since: commit cba7f53b717d ("ethdev: introduce Tx queue offloads API") This commit support the new Tx offloads API. Queue configuration is stored in ena_ring.offloads. During preparing mbufs for tx, offloads are allowed only if appropriate flags in this field are set. Signed-off-by: Rafal Kozik Reviewed-by: Ferruh Yigit Acked-by: Michal Krawczyk --- diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c index 3f379a9b2c..2398c0960c 100644 --- a/drivers/net/ena/ena_ethdev.c +++ b/drivers/net/ena/ena_ethdev.c @@ -164,6 +164,14 @@ static const struct ena_stats ena_stats_ena_com_strings[] = { #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings) #define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings) +#define QUEUE_OFFLOADS (DEV_TX_OFFLOAD_TCP_CKSUM |\ + DEV_TX_OFFLOAD_UDP_CKSUM |\ + DEV_TX_OFFLOAD_IPV4_CKSUM |\ + DEV_TX_OFFLOAD_TCP_TSO) +#define MBUF_OFFLOADS (PKT_TX_L4_MASK |\ + PKT_TX_IP_CKSUM |\ + PKT_TX_TCP_SEG) + /** Vendor ID used by Amazon devices */ #define PCI_VENDOR_ID_AMAZON 0x1D0F /** Amazon devices */ @@ -230,6 +238,8 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev, struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size); static int ena_get_sset_count(struct rte_eth_dev *dev, int sset); +static bool ena_are_tx_queue_offloads_allowed(struct ena_adapter *adapter, + uint64_t offloads); static const struct eth_dev_ops ena_dev_ops = { .dev_configure = ena_dev_configure, @@ -283,21 +293,24 @@ static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf, } static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf, - struct ena_com_tx_ctx *ena_tx_ctx) + struct ena_com_tx_ctx *ena_tx_ctx, + uint64_t queue_offloads) { struct ena_com_tx_meta *ena_meta = &ena_tx_ctx->ena_meta; - if (mbuf->ol_flags & - (PKT_TX_L4_MASK | PKT_TX_IP_CKSUM | PKT_TX_TCP_SEG)) { + if ((mbuf->ol_flags & MBUF_OFFLOADS) && + (queue_offloads & QUEUE_OFFLOADS)) { /* check if TSO is required */ - if (mbuf->ol_flags & PKT_TX_TCP_SEG) { + if ((mbuf->ol_flags & PKT_TX_TCP_SEG) && + (queue_offloads & DEV_TX_OFFLOAD_TCP_TSO)) { ena_tx_ctx->tso_enable = true; ena_meta->l4_hdr_len = GET_L4_HDR_LEN(mbuf); } /* check if L3 checksum is needed */ - if (mbuf->ol_flags & PKT_TX_IP_CKSUM) + if ((mbuf->ol_flags & PKT_TX_IP_CKSUM) && + (queue_offloads & DEV_TX_OFFLOAD_IPV4_CKSUM)) ena_tx_ctx->l3_csum_enable = true; if (mbuf->ol_flags & PKT_TX_IPV6) { @@ -313,19 +326,17 @@ static inline void ena_tx_mbuf_prepare(struct rte_mbuf *mbuf, } /* check if L4 checksum is needed */ - switch (mbuf->ol_flags & PKT_TX_L4_MASK) { - case PKT_TX_TCP_CKSUM: + if ((mbuf->ol_flags & PKT_TX_TCP_CKSUM) && + (queue_offloads & DEV_TX_OFFLOAD_TCP_CKSUM)) { ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_TCP; ena_tx_ctx->l4_csum_enable = true; - break; - case PKT_TX_UDP_CKSUM: + } else if ((mbuf->ol_flags & PKT_TX_UDP_CKSUM) && + (queue_offloads & DEV_TX_OFFLOAD_UDP_CKSUM)) { ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UDP; ena_tx_ctx->l4_csum_enable = true; - break; - default: + } else { ena_tx_ctx->l4_proto = ENA_ETH_IO_L4_PROTO_UNKNOWN; ena_tx_ctx->l4_csum_enable = false; - break; } ena_meta->mss = mbuf->tso_segsz; @@ -948,7 +959,7 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, uint16_t nb_desc, __rte_unused unsigned int socket_id, - __rte_unused const struct rte_eth_txconf *tx_conf) + const struct rte_eth_txconf *tx_conf) { struct ena_com_create_io_ctx ctx = /* policy set to _HOST just to satisfy icc compiler */ @@ -985,6 +996,12 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, return -EINVAL; } + if (tx_conf->txq_flags == ETH_TXQ_FLAGS_IGNORE && + !ena_are_tx_queue_offloads_allowed(adapter, tx_conf->offloads)) { + RTE_LOG(ERR, PMD, "Unsupported queue offloads\n"); + return -EINVAL; + } + ena_qid = ENA_IO_TXQ_IDX(queue_idx); ctx.direction = ENA_COM_IO_QUEUE_DIRECTION_TX; @@ -1039,6 +1056,8 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, for (i = 0; i < txq->ring_size; i++) txq->empty_tx_reqs[i] = i; + txq->offloads = tx_conf->offloads; + /* Store pointer to this queue in upper layer */ txq->configured = 1; dev->data->tx_queues[queue_idx] = txq; @@ -1389,6 +1408,14 @@ static int ena_dev_configure(struct rte_eth_dev *dev) { struct ena_adapter *adapter = (struct ena_adapter *)(dev->data->dev_private); + uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads; + + if ((tx_offloads & adapter->tx_supported_offloads) != tx_offloads) { + RTE_LOG(ERR, PMD, "Some Tx offloads are not supported " + "requested 0x%" PRIx64 " supported 0x%" PRIx64 "\n", + tx_offloads, adapter->tx_supported_offloads); + return -ENOTSUP; + } if (!(adapter->state == ENA_ADAPTER_STATE_INIT || adapter->state == ENA_ADAPTER_STATE_STOPPED)) { @@ -1410,6 +1437,7 @@ static int ena_dev_configure(struct rte_eth_dev *dev) break; } + adapter->tx_selected_offloads = tx_offloads; return 0; } @@ -1438,13 +1466,26 @@ static void ena_init_rings(struct ena_adapter *adapter) } } +static bool ena_are_tx_queue_offloads_allowed(struct ena_adapter *adapter, + uint64_t offloads) +{ + uint64_t port_offloads = adapter->tx_selected_offloads; + + /* Check if port supports all requested offloads. + * True if all offloads selected for queue are set for port. + */ + if ((offloads & port_offloads) != offloads) + return false; + return true; +} + static void ena_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) { struct ena_adapter *adapter; struct ena_com_dev *ena_dev; struct ena_com_dev_get_features_ctx feat; - uint32_t rx_feat = 0, tx_feat = 0; + uint64_t rx_feat = 0, tx_feat = 0; int rc = 0; ena_assert_msg(dev->data != NULL, "Uninitialized device"); @@ -1493,6 +1534,7 @@ static void ena_infos_get(struct rte_eth_dev *dev, /* Inform framework about available features */ dev_info->rx_offload_capa = rx_feat; dev_info->tx_offload_capa = tx_feat; + dev_info->tx_queue_offload_capa = tx_feat; dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN; dev_info->max_rx_pktlen = adapter->max_mtu; @@ -1501,6 +1543,8 @@ static void ena_infos_get(struct rte_eth_dev *dev, dev_info->max_rx_queues = adapter->num_queues; dev_info->max_tx_queues = adapter->num_queues; dev_info->reta_size = ENA_RX_RSS_TABLE_SIZE; + + adapter->tx_supported_offloads = tx_feat; } static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, @@ -1717,7 +1761,7 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, } /* there's no else as we take advantage of memset zeroing */ /* Set TX offloads flags, if applicable */ - ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx); + ena_tx_mbuf_prepare(mbuf, &ena_tx_ctx, tx_ring->offloads); if (unlikely(mbuf->ol_flags & (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD))) diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h index be8bc9fa6f..3e72777217 100644 --- a/drivers/net/ena/ena_ethdev.h +++ b/drivers/net/ena/ena_ethdev.h @@ -91,6 +91,7 @@ struct ena_ring { uint8_t tx_max_header_size; int configured; struct ena_adapter *adapter; + uint64_t offloads; } __rte_cache_aligned; enum ena_adapter_state { @@ -175,6 +176,8 @@ struct ena_adapter { struct ena_driver_stats *drv_stats; enum ena_adapter_state state; + uint64_t tx_supported_offloads; + uint64_t tx_selected_offloads; }; #endif /* _ENA_ETHDEV_H_ */