net/sfc: support TCP and UDP checksum offloads for EF100

Use outer layer 4 full checksum offload which does not require any
assistance from driver.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>

diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 17e9461..98521f9 100644 (file)
--- 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 00e050e..df42d48 100644 (file)
--- 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,