From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerin Jacob Subject: [PATCH 1/2] doc: clarify L3 Tx checksum prerequisite Date: Fri, 5 Oct 2018 10:16:04 +0530 Message-ID: <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: 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_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 --- 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