From patchwork Wed Jan 27 20:52:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 12051023 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCCAFC433E0 for ; Wed, 27 Jan 2021 20:57:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5BEE464D9F for ; Wed, 27 Jan 2021 20:57:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233644AbhA0U4k (ORCPT ); Wed, 27 Jan 2021 15:56:40 -0500 Received: from esa.microchip.iphmx.com ([68.232.153.233]:17352 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233677AbhA0U4I (ORCPT ); Wed, 27 Jan 2021 15:56:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1611780967; x=1643316967; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=lqPm3w8R6W+6/EKBHQZN4ymXoXRvTekFol5Yx69SaXk=; b=izKweRADdm7ibk44TwW8Ve/MOpaHZ5JpR+A3iSU2N8nR/gkgPLLrxFbr 2giSZpop2acbQoFA/qX95lvNXkrxcTiRF+weyS1bbMJ9L9n1f3/NFzzpK HOnJpnJJYeoT5YIAW5VrKbkjkW51fQKJ+2sQlEKpbamK1icM1F5ovV1V4 VktWJMsoiJhsN9Rl3ZQuwED51MadXYyN7bkglCOTpZwSVq2GV2tgwxv46 o73py3ONr4kjnwahC9XJ++6VZlSxq1FpmlF54u/ehjxh7HFMZXaDsQ57j L6EAGMXPmxuPcASGPZI/vFeivn7TGryFMQrfOdfCl15DymDGi00QFkN+7 g==; IronPort-SDR: C8SDGbPGgqNkojSPzdsNfQMQm8AhjxlmUil+dXh4t/XISN3NlGvfo0fNpJiZjxUUHS9qJQyUFK 7dI7/s5BODfkD35MtRhvavOx9agc6p1YbVreDjMVQ+buXCZUgJyApsXwkn/q++FtuWa2zybz9m LIIGx3IkqZ01NOxEiKHNnzl8GMcrqEdn9Q5KgCg+cUOtZ4i9w7QZJ0HWyzlAnBH9bzaxEOAj2C p3HGNxFfMcW56HOjnl0lG9s5xPLNJQeR519LFXp6Dxpp2XK5vykhIyHD3PTb/cRywKapGByWfy 32E= X-IronPort-AV: E=Sophos;i="5.79,380,1602572400"; d="scan'208";a="107543338" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 27 Jan 2021 13:54:09 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Wed, 27 Jan 2021 13:54:09 -0700 Received: from soft-dev3.localdomain (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Wed, 27 Jan 2021 13:54:07 -0700 From: Horatiu Vultur To: , , , , , , , , , , CC: Horatiu Vultur Subject: [PATCH net-next v2 4/4] bridge: mrp: Update br_mrp to use new return values of br_mrp_switchdev Date: Wed, 27 Jan 2021 21:52:41 +0100 Message-ID: <20210127205241.2864728-5-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210127205241.2864728-1-horatiu.vultur@microchip.com> References: <20210127205241.2864728-1-horatiu.vultur@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Check the return values of the br_mrp_switchdev function. In case of: - BR_MRP_NONE, return the error to userspace, - BR_MRP_SW, continue with SW implementation, - BR_MRP_HW, continue without SW implementation, Signed-off-by: Horatiu Vultur --- net/bridge/br_mrp.c | 43 +++++++++++++++++++++++++++---------------- 1 file changed, 27 insertions(+), 16 deletions(-) diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c index fc0a98874bfc..faa4ccb20f0a 100644 --- a/net/bridge/br_mrp.c +++ b/net/bridge/br_mrp.c @@ -636,7 +636,7 @@ int br_mrp_set_ring_role(struct net_bridge *br, struct br_mrp_ring_role *role) { struct br_mrp *mrp = br_mrp_find_id(br, role->ring_id); - int err; + enum br_mrp_hw_support support; if (!mrp) return -EINVAL; @@ -644,9 +644,9 @@ int br_mrp_set_ring_role(struct net_bridge *br, mrp->ring_role = role->ring_role; /* If there is an error just bailed out */ - err = br_mrp_switchdev_set_ring_role(br, mrp, role->ring_role); - if (err && err != -EOPNOTSUPP) - return err; + support = br_mrp_switchdev_set_ring_role(br, mrp, role->ring_role); + if (support == BR_MRP_NONE) + return -EOPNOTSUPP; /* Now detect if the HW actually applied the role or not. If the HW * applied the role it means that the SW will not to do those operations @@ -654,7 +654,7 @@ int br_mrp_set_ring_role(struct net_bridge *br, * SW when ring is open, but if the is not pushed to the HW the SW will * need to detect when the ring is open */ - mrp->ring_role_offloaded = err == -EOPNOTSUPP ? 0 : 1; + mrp->ring_role_offloaded = support == BR_MRP_SW ? 0 : 1; return 0; } @@ -667,6 +667,7 @@ int br_mrp_start_test(struct net_bridge *br, struct br_mrp_start_test *test) { struct br_mrp *mrp = br_mrp_find_id(br, test->ring_id); + enum br_mrp_hw_support support; if (!mrp) return -EINVAL; @@ -674,9 +675,13 @@ int br_mrp_start_test(struct net_bridge *br, /* Try to push it to the HW and if it fails then continue with SW * implementation and if that also fails then return error. */ - if (!br_mrp_switchdev_send_ring_test(br, mrp, test->interval, - test->max_miss, test->period, - test->monitor)) + support = br_mrp_switchdev_send_ring_test(br, mrp, test->interval, + test->max_miss, test->period, + test->monitor); + if (support == BR_MRP_NONE) + return -EOPNOTSUPP; + + if (support == BR_MRP_HW) return 0; mrp->test_interval = test->interval; @@ -718,8 +723,8 @@ int br_mrp_set_in_state(struct net_bridge *br, struct br_mrp_in_state *state) int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role) { struct br_mrp *mrp = br_mrp_find_id(br, role->ring_id); + enum br_mrp_hw_support support; struct net_bridge_port *p; - int err; if (!mrp) return -EINVAL; @@ -777,10 +782,10 @@ int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role) mrp->in_id = role->in_id; /* If there is an error just bailed out */ - err = br_mrp_switchdev_set_in_role(br, mrp, role->in_id, - role->ring_id, role->in_role); - if (err && err != -EOPNOTSUPP) - return err; + support = br_mrp_switchdev_set_in_role(br, mrp, role->in_id, + role->ring_id, role->in_role); + if (support == BR_MRP_NONE) + return -EOPNOTSUPP; /* Now detect if the HW actually applied the role or not. If the HW * applied the role it means that the SW will not to do those operations @@ -788,7 +793,7 @@ int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role) * SW when interconnect ring is open, but if the is not pushed to the HW * the SW will need to detect when the interconnect ring is open. */ - mrp->in_role_offloaded = err == -EOPNOTSUPP ? 0 : 1; + mrp->in_role_offloaded = support == BR_MRP_SW ? 0 : 1; return 0; } @@ -801,6 +806,7 @@ int br_mrp_start_in_test(struct net_bridge *br, struct br_mrp_start_in_test *in_test) { struct br_mrp *mrp = br_mrp_find_in_id(br, in_test->in_id); + enum br_mrp_hw_support support; if (!mrp) return -EINVAL; @@ -811,8 +817,13 @@ int br_mrp_start_in_test(struct net_bridge *br, /* Try to push it to the HW and if it fails then continue with SW * implementation and if that also fails then return error. */ - if (!br_mrp_switchdev_send_in_test(br, mrp, in_test->interval, - in_test->max_miss, in_test->period)) + support = br_mrp_switchdev_send_in_test(br, mrp, in_test->interval, + in_test->max_miss, + in_test->period); + if (support == BR_MRP_NONE) + return -EOPNOTSUPP; + + if (support == BR_MRP_HW) return 0; mrp->in_test_interval = in_test->interval;