From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: John McNamara <john.mcnamara@intel.com>,
Marko Kovacevic <marko.kovacevic@intel.com>
Cc: dev@dpdk.org, thomas@monjalon.net, ferruh.yigit@intel.com,
arybchenko@solarflare.com, olivier.matz@6wind.com,
Jerin Jacob <jerin.jacob@caviumnetworks.com>,
stable@dpdk.org
Subject: [dpdk-dev] [PATCH 2/2] doc: clarify L4 Tx checksum prerequisite
Date: Fri, 5 Oct 2018 10:16:05 +0530 [thread overview]
Message-ID: <20181005044606.27026-2-jerin.jacob@caviumnetworks.com> (raw)
In-Reply-To: <20181005044606.27026-1-jerin.jacob@caviumnetworks.com>
Based on PKT_TX_[TCP|UDP|SCTP]_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_TCP_CKSUM defintion at
https://git.dpdk.org/dpdk/tree/lib/librte_mbuf/rte_mbuf.h#n269
---
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 e726a6bb8..c39fb0074 100644
--- a/doc/guides/nics/features.rst
+++ b/doc/guides/nics/features.rst
@@ -582,6 +582,7 @@ Supports L4 checksum offload.
* **[uses] mbuf**: ``mbuf.ol_flags:PKT_TX_IPV4`` | ``PKT_TX_IPV6``,
``mbuf.ol_flags:PKT_TX_L4_NO_CKSUM`` | ``PKT_TX_TCP_CKSUM`` |
``PKT_TX_SCTP_CKSUM`` | ``PKT_TX_UDP_CKSUM``.
+* **[uses] mbuf**: ``mbuf.l2_len``, ``mbuf.l3_len``.
* **[provides] mbuf**: ``mbuf.ol_flags:PKT_RX_L4_CKSUM_UNKNOWN`` |
``PKT_RX_L4_CKSUM_BAD`` | ``PKT_RX_L4_CKSUM_GOOD`` |
``PKT_RX_L4_CKSUM_NONE``.
--
2.19.0
next prev parent reply other threads:[~2018-10-05 4:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-05 4:46 [dpdk-dev] [PATCH 1/2] doc: clarify L3 " Jerin Jacob
2018-10-05 4:46 ` Jerin Jacob [this message]
2018-10-05 6:45 ` [dpdk-dev] [PATCH 2/2] doc: clarify L4 " 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181005044606.27026-2-jerin.jacob@caviumnetworks.com \
--to=jerin.jacob@caviumnetworks.com \
--cc=arybchenko@solarflare.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=john.mcnamara@intel.com \
--cc=marko.kovacevic@intel.com \
--cc=olivier.matz@6wind.com \
--cc=stable@dpdk.org \
--cc=thomas@monjalon.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).