Based on PKT_TX_IP_CKSUM definition the user needs
to fill l2_len and l3_len mbuf fields before issuing
HW Tx checksum request.
Fixes: dad1ec72a377 ("doc: document NIC features")
Cc: sta...@dpdk.org
Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
---
See PKT_TX_IP_CKSUM at
https://git.dpdk.org/dpdk/tree/lib/librte_mbuf/rte_mbuf.h#n283
---
doc/guides/nics/features.rst | 1 +
1 file changed, 1 insertion(+)
diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst
index b085bda86..e726a6bb8 100644
--- a/doc/guides/nics/features.rst
+++ b/doc/guides/nics/features.rst
@@ -562,6 +562,7 @@ Supports L3 checksum offload.
* **[uses] rte_eth_txconf,rte_eth_txmode**:
``offloads:DEV_TX_OFFLOAD_IPV4_CKSUM``.
* **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_IP_CKSUM``,
``mbuf.ol_flags:PKT_TX_IPV4`` | ``PKT_TX_IPV6``.
+* **[uses] mbuf**: ``mbuf.l2_len``, ``mbuf.l3_len``.
* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_IP_CKSUM_UNKNOWN`` |
``PKT_RX_IP_CKSUM_BAD`` | ``PKT_RX_IP_CKSUM_GOOD`` |
``PKT_RX_IP_CKSUM_NONE``.
--
2.19.0
