From patchwork Wed Jun 3 02:40:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qi Zhang X-Patchwork-Id: 70800 X-Patchwork-Delegate: xiaolong.ye@intel.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id D6A1AA04EF; Wed, 3 Jun 2020 04:42:50 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 842E81D569; Wed, 3 Jun 2020 04:37:41 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id EAA821D560 for ; Wed, 3 Jun 2020 04:37:39 +0200 (CEST) IronPort-SDR: /pZM7N9YaCLi1kuSx7zeNqZeaCicyIaNPhfae/JtW8ZlT5gH7WK6xGnzBvzBsYvVOjPBcyurgx gvj36khuReTQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jun 2020 19:37:39 -0700 IronPort-SDR: X29Idz6fEHsnbmnHzKrdf08jWCQvb0Zkzp8gIO7IDuUOFhfidv5Z5Szo0V3iYw7/Jfq8pDLRGQ j0+FBO1KZnHA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,466,1583222400"; d="scan'208";a="347614220" Received: from dpdk51.sh.intel.com ([10.67.111.82]) by orsmga001.jf.intel.com with ESMTP; 02 Jun 2020 19:37:37 -0700 From: Qi Zhang To: qiming.yang@intel.com Cc: dev@dpdk.org, xiaolong.ye@intel.com, Qi Zhang , Dan Nowlin , "Paul M . Stillwell Jr" Date: Wed, 3 Jun 2020 10:40:02 +0800 Message-Id: <20200603024016.30636-39-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20200603024016.30636-1-qi.z.zhang@intel.com> References: <20200603024016.30636-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [PATCH 38/52] net/ice/base: add entries in Profile TCAM with priority X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The profile TCAM tables are implemented such that entries with a smaller index in the table have a higher priority. When records to be added to the table have flags to differentiate between standard PTG and VSIG records, then these entries need to have higher priority in order to be found and processed first. Signed-off-by: Dan Nowlin Signed-off-by: Paul M. Stillwell Jr Signed-off-by: Qi Zhang --- drivers/net/ice/base/ice_flex_pipe.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/net/ice/base/ice_flex_pipe.c b/drivers/net/ice/base/ice_flex_pipe.c index 340a855d3..4e69d2dc2 100644 --- a/drivers/net/ice/base/ice_flex_pipe.c +++ b/drivers/net/ice/base/ice_flex_pipe.c @@ -2893,20 +2893,22 @@ static bool ice_tcam_ent_rsrc_type(enum ice_block blk, u16 *rsrc_type) * ice_alloc_tcam_ent - allocate hardware TCAM entry * @hw: pointer to the HW struct * @blk: the block to allocate the TCAM for + * @btm: true to allocate from bottom of table, false to allocate from top * @tcam_idx: pointer to variable to receive the TCAM entry * * This function allocates a new entry in a Profile ID TCAM for a specific * block. */ static enum ice_status -ice_alloc_tcam_ent(struct ice_hw *hw, enum ice_block blk, u16 *tcam_idx) +ice_alloc_tcam_ent(struct ice_hw *hw, enum ice_block blk, bool btm, + u16 *tcam_idx) { u16 res_type; if (!ice_tcam_ent_rsrc_type(blk, &res_type)) return ICE_ERR_PARAM; - return ice_alloc_hw_res(hw, res_type, 1, true, tcam_idx); + return ice_alloc_hw_res(hw, res_type, 1, btm, tcam_idx); } /** @@ -5225,7 +5227,12 @@ ice_prof_tcam_ena_dis(struct ice_hw *hw, enum ice_block blk, bool enable, } /* for re-enabling, reallocate a TCAM */ - status = ice_alloc_tcam_ent(hw, blk, &tcam->tcam_idx); + /* for entries with empty attribute masks, allocate entry from + * the bottom of the tcam table; otherwise, allocate from the + * top of the table in order to give it higher priority + */ + status = ice_alloc_tcam_ent(hw, blk, tcam->attr.mask == 0, + &tcam->tcam_idx); if (status) return status; @@ -5426,7 +5433,12 @@ ice_add_prof_id_vsig(struct ice_hw *hw, enum ice_block blk, u16 vsig, u64 hdl, goto err_ice_add_prof_id_vsig; /* allocate the TCAM entry index */ - status = ice_alloc_tcam_ent(hw, blk, &tcam_idx); + /* for entries with empty attribute masks, allocate entry from + * the bottom of the tcam table; otherwise, allocate from the + * top of the table in order to give it higher priority + */ + status = ice_alloc_tcam_ent(hw, blk, map->attr[i].mask == 0, + &tcam_idx); if (status) { ice_free(hw, p); goto err_ice_add_prof_id_vsig;