From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 1155A42362; Wed, 11 Oct 2023 18:08:45 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id EF29C400EF; Wed, 11 Oct 2023 18:08:44 +0200 (CEST) Received: from NAM10-MW2-obe.outbound.protection.outlook.com (mail-mw2nam10on2041.outbound.protection.outlook.com [40.107.94.41]) by mails.dpdk.org (Postfix) with ESMTP id 66A5E400D7 for ; Wed, 11 Oct 2023 18:08:43 +0200 (CEST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=C04xsiD8bNWSHISOsrX/C/xtsogNjF94KbsK3ojb7MYju44yt+uUKHBzrIj2t8y6544PyBTxezuKhcKvmPj7+xBJnT0aNnfdRSFIiniW3zZprBQ60ic08npfK7PC9lcNceRMpGvRacIk2eCilQNqn00yJRSRUCj9uImfQ6yxaMjb/nvteMPznRoD3QQp2TZfaETb7HMVPwJHnrGQJuEeZnXHYQPpxiFn/fFniG9GbE+sc1vTFUyOf5tXrXuoZiMJLnqMp6ypOWGp+ET1KoYXKjxhMHiUKJfFT2vecltqEVwmtHHsuKCIsHHaaFLoyBf3aqRkt4MAHo+glPYwW/ugqA== ARC-Message-Signature: i=1; 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Create insert by index table with 2 rules, that hashes based on dmac > 2. Insert to index 0 a rule that sends the traffic to port A. > 3. Insert to index 1 a rule that sends the traffic to port B. > > Let's also assume that before this table, there is a 5 tuple > match table that jumps to the above table. > > So each packet that matches one of the 5 tuple rules is RSSed > to port A or B, based on dmac hash. > > The issue arises when there is a miss on the 5 tuple table, > which resulted due to the packet being the first packet of this flow, or > fragmented packet or any other reason. > In this case, the application must calculate what would be the > hash calculated by the HW so it can send the packet to the correct > port. > > This new API allows applications to calculate the hash value of a given > packet for a given table. > > [1] - http://patches.dpdk.org/project/dpdk/patch/20230208030624.78465-2-akozyrev@nvidia.com/ > > Signed-off-by: Ori Kam > Applied to dpdk-next-net/main, thanks.