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* [dpdk-dev]  [PATCH 1/2] doc: clarify L3 Tx checksum prerequisite
@ 2018-10-05  4:46 Jerin Jacob
  2018-10-05  4:46 ` [dpdk-dev] [PATCH 2/2] doc: clarify L4 " Jerin Jacob
                   ` (2 more replies)
  0 siblings, 3 replies; 8+ messages in thread
From: Jerin Jacob @ 2018-10-05  4:46 UTC (permalink / raw)
  To: John McNamara, Marko Kovacevic
  Cc: dev, thomas, ferruh.yigit, arybchenko, olivier.matz, Jerin Jacob, stable

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: stable@dpdk.org

Signed-off-by: Jerin Jacob <jerin.jacob@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

^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2018-10-09 10:19 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-10-05  4:46 [dpdk-dev] [PATCH 1/2] doc: clarify L3 Tx checksum prerequisite Jerin Jacob
2018-10-05  4:46 ` [dpdk-dev] [PATCH 2/2] doc: clarify L4 " Jerin Jacob
2018-10-05  6:45   ` Andrew Rybchenko
2018-10-05  6:44 ` [dpdk-dev] [PATCH 1/2] doc: clarify L3 " Andrew Rybchenko
2018-10-05  7:06   ` Jerin Jacob
2018-10-09 10:19   ` Ferruh Yigit
2018-10-05 19:56 ` Ferruh Yigit
2018-10-06  8:05   ` Jerin Jacob

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