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Subject: [dpdk-dev] [PATCH v14 7/8] ena: add Tx preparation
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From: Konstantin Ananyev <konstantin.ananyev@intel.com>
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
---
drivers/net/ena/ena_ethdev.c | 51 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 555fb31..51af723 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -39,6 +39,7 @@
#include <rte_errno.h>
#include <rte_version.h>
#include <rte_eal_memconfig.h>
+#include <rte_net.h>
#include "ena_ethdev.h"
#include "ena_logs.h"
@@ -168,6 +169,14 @@ struct ena_stats {
#define PCI_DEVICE_ID_ENA_VF 0xEC20
#define PCI_DEVICE_ID_ENA_LLQ_VF 0xEC21
+#define ENA_TX_OFFLOAD_MASK (\
+ PKT_TX_L4_MASK | \
+ PKT_TX_IP_CKSUM | \
+ PKT_TX_TCP_SEG)
+
+#define ENA_TX_OFFLOAD_NOTSUP_MASK \
+ (PKT_TX_OFFLOAD_MASK ^ ENA_TX_OFFLOAD_MASK)
+
static struct rte_pci_id pci_id_ena_map[] = {
{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_VF) },
{ RTE_PCI_DEVICE(PCI_VENDOR_ID_AMAZON, PCI_DEVICE_ID_ENA_LLQ_VF) },
@@ -179,6 +188,8 @@ static int ena_device_init(struct ena_com_dev *ena_dev,
static int ena_dev_configure(struct rte_eth_dev *dev);
static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
+static uint16_t eth_ena_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
static int ena_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
uint16_t nb_desc, unsigned int socket_id,
const struct rte_eth_txconf *tx_conf);
@@ -1272,6 +1283,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
eth_dev->dev_ops = &ena_dev_ops;
eth_dev->rx_pkt_burst = ð_ena_recv_pkts;
eth_dev->tx_pkt_burst = ð_ena_xmit_pkts;
+ eth_dev->tx_pkt_prepare = ð_ena_prep_pkts;
adapter->rte_eth_dev_data = eth_dev->data;
adapter->rte_dev = eth_dev;
@@ -1570,6 +1582,45 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
return recv_idx;
}
+static uint16_t
+eth_ena_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
+{
+ int32_t ret;
+ uint32_t i;
+ struct rte_mbuf *m;
+ uint64_t ol_flags;
+
+ for (i = 0; i != nb_pkts; i++) {
+ m = tx_pkts[i];
+ ol_flags = m->ol_flags;
+
+ if ((ol_flags & ENA_TX_OFFLOAD_NOTSUP_MASK) != 0 ||
+ (ol_flags & PKT_TX_L4_MASK) ==
+ PKT_TX_SCTP_CKSUM) {
+ rte_errno = -ENOTSUP;
+ return i;
+ }
+
+#ifdef RTE_LIBRTE_ETHDEV_DEBUG
+ ret = rte_validate_tx_offload(m);
+ if (ret != 0) {
+ rte_errno = ret;
+ return i;
+ }
+#endif
+ /* ENA doesn't need different phdr cskum for TSO */
+ ret = rte_net_intel_cksum_flags_prepare(m,
+ ol_flags & ~PKT_TX_TCP_SEG);
+ if (ret != 0) {
+ rte_errno = ret;
+ return i;
+ }
+ }
+
+ return i;
+}
+
static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts)
{
--
1.7.9.5