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Miller" , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 198/281] net/mlx4: Fix the check in attaching steering rules Thread-Topic: [PATCH AUTOSEL for 4.9 198/281] net/mlx4: Fix the check in attaching steering rules Thread-Index: AQHTv5uVkx8aBSA8bUmt9qGyp0B2DA== Date: Mon, 19 Mar 2018 16:01:47 +0000 Message-ID: <20180319155742.13731-198-alexander.levin@microsoft.com> References: <20180319155742.13731-1-alexander.levin@microsoft.com> In-Reply-To: <20180319155742.13731-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB1077;7:nHhNZco+tqQ65aquD9KJD/ptALkmS2TXVSQ+2yZsIyFL1tAXtVf1nf3HmjoKLEewAAA7eBDmh9oAJrcl/3uBeGXI6bchIp7uiq8HhujCghS2M92i6dhQQW8ceQ+YTQbuFTGf6tvZEWUsOaG2ADczvW2FdZyPFf+wX6ZPiVP8Fx5y1pCbuKcBcfsKEwdnL7Zd4k91JAfJlRIPZFN6XrkKGkGs0MA7e88o8vp1BaY3q3olq2PdMeRRCCI1eZKy7ko4;20:BuyaHpTaiieTpogIopDXsmABFxGkkGgY3TN4gMLETE3jVT7uMkYXTDng+ibFPMqpwGKAq80psUBxcAxYnrP4YGxrF/Ug3HjJufFNesLKrzWgmuWyCosfk677IqEe84gdO5/iyJKNbe6kELpqy5M8XquixPJOg5EjhCar0uLT6Qw= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 474294e1-ee3b-4f55-bfcd-08d58db3050c x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB1077; x-ms-traffictypediagnostic: DM5PR2101MB1077: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171)(85827821059158); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040522)(2401047)(8121501046)(5005006)(93006095)(93001095)(10201501046)(3231221)(944501300)(52105095)(3002001)(6055026)(61426038)(61427038)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123562045)(20161123558120)(20161123560045)(6072148)(201708071742011);SRVR:DM5PR2101MB1077;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB1077; x-forefront-prvs: 06167FAD59 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(376002)(39860400002)(396003)(39380400002)(366004)(199004)(189003)(110136005)(36756003)(3280700002)(66066001)(3660700001)(4326008)(6666003)(2950100002)(25786009)(86612001)(105586002)(10090500001)(68736007)(22452003)(99286004)(106356001)(5660300001)(7736002)(305945005)(76176011)(54906003)(5250100002)(97736004)(316002)(2501003)(3846002)(6116002)(1076002)(2906002)(14454004)(2900100001)(5890100001)(6512007)(8936002)(186003)(478600001)(10290500003)(53936002)(575784001)(8676002)(107886003)(6436002)(81166006)(86362001)(6506007)(59450400001)(102836004)(26005)(72206003)(6486002)(81156014)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB1077;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-microsoft-antispam-message-info: diBMBJmSmIdNDLaKP/kThIipnOvgpYn7qGV/sziVHrjyFDjVIijjhoNWImMAFiSNHIJkjjRpHkzD56yhDd1tJYfk9/mCPX4yINfsbx3Xs8FMq+fhRA9wyucBF1rQ19iqqioO+abRlTHLT2pOYCGRBA8CUD+uC8vwYbQovM0QIgvXAUJJU23V4atnk+aG9/gHrDHnDRryRRBPVnfr6DpCu6RM/AVfCLm/eRpgUWiXEz1/HIT+bGhCQJn/qyisWgGoYcJebMqdA+1Nfqgb1P4hOReBjGVIz58GrYxMt0k1uypeZ8bEbdfFTwuzZ30vRLvIA7ER31i5ZjQcWcPl5a3Xug== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 474294e1-ee3b-4f55-bfcd-08d58db3050c X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:01:47.8621 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1077 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Talat Batheesh [ Upstream commit 6dc06c08bef1c746ff8da33dab677cfbacdcad32 ] Our previous patch (cited below) introduced a regression for RAW Eth QPs. Fix it by checking if the QP number provided by user-space exists, hence allowing steering rules to be added for valid QPs only. Fixes: 89c557687a32 ("net/mlx4_en: Avoid adding steering rules with invalid= ring") Reported-by: Or Gerlitz Signed-off-by: Talat Batheesh Signed-off-by: Tariq Toukan Acked-by: Or Gerlitz Reviewed-by: Leon Romanovsky Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 5 ----- drivers/net/ethernet/mellanox/mlx4/mcg.c | 15 +++++++++++---- drivers/net/ethernet/mellanox/mlx4/qp.c | 13 +++++++++++++ include/linux/mlx4/qp.h | 1 + 4 files changed, 25 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/= ethernet/mellanox/mlx4/en_ethtool.c index 674246b189c2..bdda17d2ea0f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c @@ -1520,11 +1520,6 @@ static int mlx4_en_flow_replace(struct net_device *d= ev, qpn =3D priv->drop_qp.qpn; else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) { qpn =3D cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1); - if (qpn < priv->rss_map.base_qpn || - qpn >=3D priv->rss_map.base_qpn + priv->rx_ring_num) { - en_warn(priv, "rxnfc: QP (0x%x) doesn't exist\n", qpn); - return -EINVAL; - } } else { if (cmd->fs.ring_cookie >=3D priv->rx_ring_num) { en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n", diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/etherne= t/mellanox/mlx4/mcg.c index 1a670b681555..0710b3677464 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -35,6 +35,7 @@ #include =20 #include +#include #include =20 #include "mlx4.h" @@ -985,16 +986,21 @@ int mlx4_flow_attach(struct mlx4_dev *dev, if (IS_ERR(mailbox)) return PTR_ERR(mailbox); =20 + if (!mlx4_qp_lookup(dev, rule->qpn)) { + mlx4_err_rule(dev, "QP doesn't exist\n", rule); + ret =3D -EINVAL; + goto out; + } + trans_rule_ctrl_to_hw(rule, mailbox->buf); =20 size +=3D sizeof(struct mlx4_net_trans_rule_hw_ctrl); =20 list_for_each_entry(cur, &rule->list, list) { ret =3D parse_trans_rule(dev, cur, mailbox->buf + size); - if (ret < 0) { - mlx4_free_cmd_mailbox(dev, mailbox); - return ret; - } + if (ret < 0) + goto out; + size +=3D ret; } =20 @@ -1021,6 +1027,7 @@ int mlx4_flow_attach(struct mlx4_dev *dev, } } =20 +out: mlx4_free_cmd_mailbox(dev, mailbox); =20 return ret; diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet= /mellanox/mlx4/qp.c index 6143113a7fef..99c8fc970f88 100644 --- a/drivers/net/ethernet/mellanox/mlx4/qp.c +++ b/drivers/net/ethernet/mellanox/mlx4/qp.c @@ -387,6 +387,19 @@ static void mlx4_qp_free_icm(struct mlx4_dev *dev, int= qpn) __mlx4_qp_free_icm(dev, qpn); } =20 +struct mlx4_qp *mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn) +{ + struct mlx4_qp_table *qp_table =3D &mlx4_priv(dev)->qp_table; + struct mlx4_qp *qp; + + spin_lock(&qp_table->lock); + + qp =3D __mlx4_qp_lookup(dev, qpn); + + spin_unlock(&qp_table->lock); + return qp; +} + int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp, gfp_t= gfp) { struct mlx4_priv *priv =3D mlx4_priv(dev); diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h index b4ee8f62ce8d..8e2828d48d7f 100644 --- a/include/linux/mlx4/qp.h +++ b/include/linux/mlx4/qp.h @@ -470,6 +470,7 @@ struct mlx4_update_qp_params { u16 rate_val; }; =20 +struct mlx4_qp *mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn); int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn, enum mlx4_update_qp_attr attr, struct mlx4_update_qp_params *params); --=20 2.14.1