[dpdk-dev] [PATCH 13/14] net/sfc: support inner checksum offload on transmit
Andrew Rybchenko
arybchenko at solarflare.com
Sun Dec 24 11:46:43 CET 2017
There is no dedicated controls for inner checksum offload on
device/queue level. So, enable together with outer offloads.
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
Reviewed-by: Ivan Malov <ivan.malov at oktetlabs.ru>
---
doc/guides/nics/sfc_efx.rst | 2 ++
drivers/net/sfc/sfc_ethdev.c | 3 +++
drivers/net/sfc/sfc_tx.c | 8 ++++++++
3 files changed, 13 insertions(+)
diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 813cb6f..8e0782c 100644
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -48,6 +48,8 @@ SFC EFX PMD has support for:
- IPv4/IPv6 TCP/UDP transmit checksum offload
+- Inner IPv4/IPv6 TCP/UDP transmit checksum offload
+
- Port hardware statistics
- Extended statistics (see Solarflare Server Adapter User's Guide for
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 0fea997..1b700b1 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -140,6 +140,9 @@ sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
DEV_TX_OFFLOAD_UDP_CKSUM |
DEV_TX_OFFLOAD_TCP_CKSUM;
+ if (encp->enc_tunnel_encapsulations_supported != 0)
+ dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
+
dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
!encp->enc_hw_tx_insert_vlan_enabled)
diff --git a/drivers/net/sfc/sfc_tx.c b/drivers/net/sfc/sfc_tx.c
index d1320f4..f580fb5 100644
--- a/drivers/net/sfc/sfc_tx.c
+++ b/drivers/net/sfc/sfc_tx.c
@@ -410,6 +410,7 @@ sfc_tx_close(struct sfc_adapter *sa)
int
sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index)
{
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
struct rte_eth_dev_data *dev_data;
struct sfc_txq_info *txq_info;
struct sfc_txq *txq;
@@ -440,9 +441,16 @@ sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index)
if ((txq->flags & ETH_TXQ_FLAGS_NOXSUMTCP) ||
(txq->flags & ETH_TXQ_FLAGS_NOXSUMUDP)) {
flags = EFX_TXQ_CKSUM_IPV4;
+
+ if (encp->enc_tunnel_encapsulations_supported != 0)
+ flags |= EFX_TXQ_CKSUM_INNER_IPV4;
} else {
flags = EFX_TXQ_CKSUM_IPV4 | EFX_TXQ_CKSUM_TCPUDP;
+ if (encp->enc_tunnel_encapsulations_supported != 0)
+ flags |= EFX_TXQ_CKSUM_INNER_IPV4 |
+ EFX_TXQ_CKSUM_INNER_TCPUDP;
+
if (sa->tso)
flags |= EFX_TXQ_FATSOV2;
}
--
2.7.4
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