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[2620:137:e000::1:20]) by mx.google.com with ESMTP id ka15-20020a170907990f00b007acbaeed9besi4083748ejc.398.2022.10.28.06.49.04; Fri, 28 Oct 2022 06:49:30 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@microchip.com header.s=mchp header.b=x+p1b6bX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=microchip.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230310AbiJ1NFB (ORCPT + 99 others); Fri, 28 Oct 2022 09:05:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230272AbiJ1NEx (ORCPT ); Fri, 28 Oct 2022 09:04:53 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3902E0F5; Fri, 28 Oct 2022 06:04:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1666962288; x=1698498288; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=JW8/U4h7fYaNc7zi7oS0xFNAW/ub+LYPamgBbsQLIJ0=; b=x+p1b6bXsjkpDIBu4c26fli0NmRr76hHMwSC4oCAJppBvbsdlFlldUAw 8b8u98M4FsXx1uSUjdxf+YugrrYdgJZzsCIm9tZAxEK/c/Z7GdPVZUSgj Yp75XQu+qnWj1/ytCSr77uFbOh++RaTONc6gnPTQpYUt3B2Nb86bilhiL tO0EhUgLhNR/g0aOgOP6MuacrQONF2Dsc1U7AZYrDFYjleL2o+iuzm5wy fAmuWrTO8RcuZP2U+iZC2E+xGvFBkX8u9UaSRJwSFgoNYgFXn30CZtJkN kMZVhQ61iYP3okZs7EpSgHZva7QVTrjPa7xYgeTAQU8V0zo3+lHTevfWR Q==; X-IronPort-AV: E=Sophos;i="5.95,221,1661842800"; d="scan'208";a="186779167" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 28 Oct 2022 06:04:48 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Fri, 28 Oct 2022 06:04:46 -0700 Received: from DEN-LT-70577.microchip.com (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Fri, 28 Oct 2022 06:04:43 -0700 From: Daniel Machon To: CC: , , , , , , , , , , , , , , , , , Subject: [PATCH net-next v5 4/6] net: microchip: sparx5: add support for apptrust Date: Fri, 28 Oct 2022 15:14:01 +0200 Message-ID: <20221028131403.1055694-5-daniel.machon@microchip.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221028131403.1055694-1-daniel.machon@microchip.com> References: <20221028131403.1055694-1-daniel.machon@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Make use of set/getapptrust() to implement per-selector trust and trust order. Signed-off-by: Daniel Machon --- .../ethernet/microchip/sparx5/sparx5_dcb.c | 105 ++++++++++++++++++ .../ethernet/microchip/sparx5/sparx5_port.c | 4 +- .../ethernet/microchip/sparx5/sparx5_port.h | 2 + 3 files changed, 109 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c index 2a6e875a5860..1fa150d46977 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_dcb.c @@ -8,6 +8,22 @@ #include "sparx5_port.h" +static const struct sparx5_dcb_apptrust { + u8 selectors[256]; + int nselectors; + const char *names; +} *apptrust[SPX5_PORTS]; + +/* Sparx5 supported apptrust configurations */ +static const struct sparx5_dcb_apptrust apptrust_conf[4] = { + /* Empty *must* be first */ + { { 0 }, 0, "empty" }, + { { IEEE_8021QAZ_APP_SEL_DSCP }, 1, "dscp" }, + { { DCB_APP_SEL_PCP }, 1, "pcp" }, + { { IEEE_8021QAZ_APP_SEL_DSCP, + DCB_APP_SEL_PCP }, 2, "dscp pcp" }, +}; + /* Validate app entry. * * Check for valid selectors and valid protocol and priority ranges. @@ -37,12 +53,62 @@ static int sparx5_dcb_app_validate(struct net_device *dev, return err; } +/* Validate apptrust configuration. + * + * Return index of supported apptrust configuration if valid, otherwise return + * error. + */ +static int sparx5_dcb_apptrust_validate(struct net_device *dev, u8 *selectors, + int nselectors, int *err) +{ + bool match; + int i, ii; + + for (i = 0; i < ARRAY_SIZE(apptrust_conf); i++) { + if (apptrust_conf[i].nselectors != nselectors) + continue; + match = true; + for (ii = 0; ii < nselectors; ii++) { + if (apptrust_conf[i].selectors[ii] != + *(selectors + ii)) { + match = false; + break; + } + } + if (match) + break; + } + + /* Requested trust configuration is not supported */ + if (!match) { + netdev_err(dev, "Valid apptrust configurations are:\n"); + for (i = 0; i < ARRAY_SIZE(apptrust_conf); i++) + pr_info("order: %s\n", apptrust_conf[i].names); + *err = -EOPNOTSUPP; + } + + return i; +} + +static bool sparx5_dcb_apptrust_contains(int portno, u8 selector) +{ + const struct sparx5_dcb_apptrust *conf = apptrust[portno]; + int i; + + for (i = 0; i < conf->nselectors; i++) + if (conf->selectors[i] == selector) + return true; + + return false; +} + static int sparx5_dcb_app_update(struct net_device *dev) { struct dcb_app app_itr = { .selector = DCB_APP_SEL_PCP }; struct sparx5_port *port = netdev_priv(dev); struct sparx5_port_qos_pcp_map *pcp_map; struct sparx5_port_qos qos = {0}; + int portno = port->portno; int i; pcp_map = &qos.pcp.map; @@ -53,6 +119,12 @@ static int sparx5_dcb_app_update(struct net_device *dev) pcp_map->map[i] = dcb_getapp(dev, &app_itr); } + /* Enable use of pcp for queue classification ? */ + if (sparx5_dcb_apptrust_contains(portno, DCB_APP_SEL_PCP)) { + qos.pcp.qos_enable = true; + qos.pcp.dp_enable = qos.pcp.qos_enable; + } + return sparx5_port_qos_set(port, &qos); } @@ -95,9 +167,40 @@ static int sparx5_dcb_ieee_delapp(struct net_device *dev, struct dcb_app *app) return sparx5_dcb_app_update(dev); } +static int sparx5_dcb_setapptrust(struct net_device *dev, u8 *selectors, + int nselectors) +{ + struct sparx5_port *port = netdev_priv(dev); + int err = 0, idx; + + idx = sparx5_dcb_apptrust_validate(dev, selectors, nselectors, &err); + if (err < 0) + return err; + + apptrust[port->portno] = &apptrust_conf[idx]; + + return sparx5_dcb_app_update(dev); +} + +static int sparx5_dcb_getapptrust(struct net_device *dev, u8 *selectors, + int *nselectors) +{ + struct sparx5_port *port = netdev_priv(dev); + const struct sparx5_dcb_apptrust *trust; + + trust = apptrust[port->portno]; + + memcpy(selectors, trust->selectors, trust->nselectors); + *nselectors = trust->nselectors; + + return 0; +} + const struct dcbnl_rtnl_ops sparx5_dcbnl_ops = { .ieee_setapp = sparx5_dcb_ieee_setapp, .ieee_delapp = sparx5_dcb_ieee_delapp, + .dcbnl_setapptrust = sparx5_dcb_setapptrust, + .dcbnl_getapptrust = sparx5_dcb_getapptrust, }; int sparx5_dcb_init(struct sparx5 *sparx5) @@ -110,6 +213,8 @@ int sparx5_dcb_init(struct sparx5 *sparx5) if (!port) continue; port->ndev->dcbnl_ops = &sparx5_dcbnl_ops; + /* Initialize [dscp, pcp] default trust */ + apptrust[port->portno] = &apptrust_conf[3]; } return 0; diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c index 9ffaaf34d196..99e86e87aa16 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.c @@ -1163,8 +1163,8 @@ int sparx5_port_qos_pcp_set(const struct sparx5_port *port, int i; /* Enable/disable pcp and dp for qos classification. */ - spx5_rmw(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_SET(1) | - ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_SET(1), + spx5_rmw(ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA_SET(qos->qos_enable) | + ANA_CL_QOS_CFG_PCP_DEI_DP_ENA_SET(qos->dp_enable), ANA_CL_QOS_CFG_PCP_DEI_QOS_ENA | ANA_CL_QOS_CFG_PCP_DEI_DP_ENA, sparx5, ANA_CL_QOS_CFG(port->portno)); diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h index 9c5fb6b651db..fae9f5464548 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_port.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_port.h @@ -97,6 +97,8 @@ struct sparx5_port_qos_pcp_map { struct sparx5_port_qos_pcp { struct sparx5_port_qos_pcp_map map; + bool qos_enable; + bool dp_enable; }; struct sparx5_port_qos { -- 2.34.1