[dpdk-dev] [PATCH 19/36] net/sfc: support TCP and UDP checksum offloads for EF100
Andrew Rybchenko
arybchenko at solarflare.com
Tue Oct 13 15:45:36 CEST 2020
Use outer layer 4 full checksum offload which does not require any
assistance from driver.
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
---
doc/guides/nics/sfc_efx.rst | 4 ++--
drivers/net/sfc/sfc_ef100_tx.c | 11 +++++++++--
2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 17e9461bea..98521f9975 100644
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -328,8 +328,8 @@ boolean parameters value.
**ef10_simple** chooses EF10 (SFN7xxx, SFN8xxx, X2xxx) native datapath which
is even more faster then **ef10** but does not support multi-segment
mbufs, disallows multiple mempools and neglects mbuf reference counters.
- **ef100** chooses EF100 native datapath which does not support
- any offloads except multi-segment mbufs.
+ **ef100** chooses EF100 native datapath which supports multi-segment
+ mbufs and TCP/UDP checksum offloads.
- ``perf_profile`` [auto|throughput|low-latency] (default **throughput**)
diff --git a/drivers/net/sfc/sfc_ef100_tx.c b/drivers/net/sfc/sfc_ef100_tx.c
index 0a7bd74651..343730b5c9 100644
--- a/drivers/net/sfc/sfc_ef100_tx.c
+++ b/drivers/net/sfc/sfc_ef100_tx.c
@@ -216,10 +216,15 @@ sfc_ef100_tx_reap(struct sfc_ef100_txq *txq)
static void
sfc_ef100_tx_qdesc_send_create(const struct rte_mbuf *m, efx_oword_t *tx_desc)
{
- EFX_POPULATE_OWORD_4(*tx_desc,
+ bool outer_l4;
+
+ outer_l4 = (m->ol_flags & PKT_TX_L4_MASK);
+
+ EFX_POPULATE_OWORD_5(*tx_desc,
ESF_GZ_TX_SEND_ADDR, rte_mbuf_data_iova(m),
ESF_GZ_TX_SEND_LEN, rte_pktmbuf_data_len(m),
ESF_GZ_TX_SEND_NUM_SEGS, m->nb_segs,
+ ESF_GZ_TX_SEND_CSO_OUTER_L4, outer_l4,
ESF_GZ_TX_DESC_TYPE, ESE_GZ_TX_DESC_TYPE_SEND);
}
@@ -592,7 +597,9 @@ struct sfc_dp_tx sfc_ef100_tx = {
},
.features = SFC_DP_TX_FEAT_MULTI_PROCESS,
.dev_offload_capa = 0,
- .queue_offload_capa = DEV_TX_OFFLOAD_MULTI_SEGS,
+ .queue_offload_capa = DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM |
+ DEV_TX_OFFLOAD_MULTI_SEGS,
.get_dev_info = sfc_ef100_get_dev_info,
.qsize_up_rings = sfc_ef100_tx_qsize_up_rings,
.qcreate = sfc_ef100_tx_qcreate,
--
2.17.1
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