From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerin Jacob Subject: [PATCH 2/2] doc: clarify L4 Tx checksum prerequisite Date: Fri, 5 Oct 2018 10:16:05 +0530 Message-ID: <20181005044606.27026-2-jerin.jacob@caviumnetworks.com> References: <20181005044606.27026-1-jerin.jacob@caviumnetworks.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Cc: dev@dpdk.org, thomas@monjalon.net, ferruh.yigit@intel.com, arybchenko@solarflare.com, olivier.matz@6wind.com, Jerin Jacob , stable@dpdk.org To: John McNamara , Marko Kovacevic Return-path: In-Reply-To: <20181005044606.27026-1-jerin.jacob@caviumnetworks.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 --- 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