From patchwork Thu Apr 26 16:48:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Rybchenko X-Patchwork-Id: 39053 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id BD171A48F; Thu, 26 Apr 2018 18:49:20 +0200 (CEST) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [67.231.154.164]) by dpdk.org (Postfix) with ESMTP id 5602A9605 for ; Thu, 26 Apr 2018 18:49:19 +0200 (CEST) X-Virus-Scanned: Proofpoint Essentials engine Received: from webmail.solarflare.com (webmail.solarflare.com [12.187.104.26]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1-us1.ppe-hosted.com (Proofpoint Essentials ESMTP Server) with ESMTPS id 3F58914005C for ; Thu, 26 Apr 2018 16:49:18 +0000 (UTC) Received: from sfocexch01r.SolarFlarecom.com (10.20.40.34) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Thu, 26 Apr 2018 09:49:05 -0700 Received: from ocex03.SolarFlarecom.com (10.20.40.36) by sfocexch01r.SolarFlarecom.com (10.20.40.34) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Thu, 26 Apr 2018 09:49:03 -0700 Received: from opal.uk.solarflarecom.com (10.17.10.1) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25 via Frontend Transport; Thu, 26 Apr 2018 09:49:03 -0700 Received: from uklogin.uk.solarflarecom.com (uklogin.uk.solarflarecom.com [10.17.10.10]) by opal.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id w3QGn2dK004561 for ; Thu, 26 Apr 2018 17:49:02 +0100 Received: from uklogin.uk.solarflarecom.com (localhost.localdomain [127.0.0.1]) by uklogin.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id w3QGn2bd032371 for ; Thu, 26 Apr 2018 17:49:02 +0100 From: Andrew Rybchenko To: Date: Thu, 26 Apr 2018 17:48:57 +0100 Message-ID: <1524761337-32313-1-git-send-email-arybchenko@solarflare.com> X-Mailer: git-send-email 1.8.2.3 MIME-Version: 1.0 X-MDID: 1524761358-UiSH2jisLtre Subject: [dpdk-dev] [PATCH] net/sfc: do not use RSS context if it is not required 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" RSS action with only one destination queue and no specific settings for hash types and key does not require dedicated RSS context and may be simplified to QUEUE action. Signed-off-by: Andrew Rybchenko Reviewed-by: Roman Zhukov --- drivers/net/sfc/sfc_flow.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/sfc/sfc_flow.c b/drivers/net/sfc/sfc_flow.c index 41b5987b2..b7e54d77f 100644 --- a/drivers/net/sfc/sfc_flow.c +++ b/drivers/net/sfc/sfc_flow.c @@ -1295,6 +1295,17 @@ sfc_flow_parse_rss(struct sfc_adapter *sa, if (action_rss->level) return -EINVAL; + /* + * Dummy RSS action with only one queue and no specific settings + * for hash types and key does not require dedicated RSS context + * and may be simplified to single queue action. + */ + if (action_rss->queue_num == 1 && action_rss->types == 0 && + action_rss->key_len == 0) { + flow->spec.template.efs_dmaq_id = rxq_hw_index_min; + return 0; + } + if (action_rss->types) { int rc;