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Mon, 23 Oct 2023 04:22:26 -0700 From: Patrisious Haddad To: , , , CC: Patrisious Haddad , , , , , , Subject: [PATCH v2 iproute2-next 1/3] rdma: update uapi headers Date: Mon, 23 Oct 2023 14:22:15 +0300 Message-ID: <20231023112217.3439-2-phaddad@nvidia.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20231023112217.3439-1-phaddad@nvidia.com> References: <20231023112217.3439-1-phaddad@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN1PEPF0000ECDA:EE_|MN6PR12MB8543:EE_ X-MS-Office365-Filtering-Correlation-Id: 85e122a1-3db8-40db-e804-08dbd3ba6185 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(396003)(376002)(39860400002)(136003)(346002)(230922051799003)(82310400011)(1800799009)(64100799003)(186009)(451199024)(36840700001)(46966006)(40470700004)(40480700001)(8936002)(41300700001)(356005)(40460700003)(82740400003)(7636003)(426003)(1076003)(2616005)(336012)(107886003)(478600001)(8676002)(70206006)(86362001)(4326008)(2906002)(15650500001)(4744005)(316002)(36756003)(70586007)(54906003)(110136005)(5660300002)(6666004)(7696005)(26005)(36860700001)(47076005)(83380400001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Oct 2023 11:22:45.4725 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 85e122a1-3db8-40db-e804-08dbd3ba6185 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000ECDA.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN6PR12MB8543 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Update rdma_netlink.h file upto kernel commit 36ce80759f8c ("RDMA/core: Add support to set privileged qkey parameter") Signed-off-by: Patrisious Haddad Reviewed-by: Michael Guralnik --- rdma/include/uapi/rdma/rdma_netlink.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/rdma/include/uapi/rdma/rdma_netlink.h b/rdma/include/uapi/rdma= /rdma_netlink.h index 92c528a0..3a506efa 100644 --- a/rdma/include/uapi/rdma/rdma_netlink.h +++ b/rdma/include/uapi/rdma/rdma_netlink.h @@ -554,6 +554,12 @@ enum rdma_nldev_attr { RDMA_NLDEV_ATTR_STAT_HWCOUNTER_INDEX, /* u32 */ RDMA_NLDEV_ATTR_STAT_HWCOUNTER_DYNAMIC, /* u8 */ =20 + /* + * To enable or disable using privileged_qkey without being + * a privileged user. + */ + RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE, /* u8 */ + /* * Always the end */ --=20 2.18.1 From nobody Thu Jan 1 10:40:25 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE768C001E0 for ; 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Mon, 23 Oct 2023 04:22:29 -0700 From: Patrisious Haddad To: , , , CC: Patrisious Haddad , , , , , , Subject: [PATCH v2 iproute2-next 2/3] rdma: Add an option to set privileged QKEY parameter Date: Mon, 23 Oct 2023 14:22:16 +0300 Message-ID: <20231023112217.3439-3-phaddad@nvidia.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20231023112217.3439-1-phaddad@nvidia.com> References: <20231023112217.3439-1-phaddad@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044F6:EE_|MW3PR12MB4442:EE_ X-MS-Office365-Filtering-Correlation-Id: aab064c2-2b63-4693-932c-08dbd3ba6422 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(346002)(396003)(39860400002)(376002)(136003)(230922051799003)(1800799009)(186009)(451199024)(82310400011)(64100799003)(46966006)(40470700004)(36840700001)(2906002)(41300700001)(110136005)(356005)(316002)(70586007)(54906003)(2616005)(82740400003)(70206006)(7696005)(7636003)(107886003)(1076003)(6666004)(478600001)(40480700001)(47076005)(426003)(336012)(83380400001)(40460700003)(36756003)(86362001)(5660300002)(4326008)(8936002)(8676002)(36860700001)(26005);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Oct 2023 11:22:49.8859 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: aab064c2-2b63-4693-932c-08dbd3ba6422 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044F6.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW3PR12MB4442 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Enrich rdmatool with an option to enable or disable privileged QKEY. When enabled, non-privileged users will be allowed to specify a controlled QKEY. By default this parameter is disabled in order to comply with IB spec. According to the IB specification rel-1.6, section 3.5.3: "QKEYs with the most significant bit set are considered controlled QKEYs, and a HCA does not allow a consumer to arbitrarily specify a controlled QKEY." This allows old applications which existed before the kernel commit: 0cadb4db79e1 ("RDMA/uverbs: Restrict usage of privileged QKEYs") they can use privileged QKEYs without being a privileged user to now be able to work again without being privileged granted they turn on this parameter. rdma tool command examples and output. $ rdma system show netns shared privileged-qkey off copy-on-fork on $ rdma system set privileged-qkey on $ rdma system show netns shared privileged-qkey on copy-on-fork on Signed-off-by: Patrisious Haddad Reviewed-by: Michael Guralnik Reviewed-by: Petr Machata --- rdma/sys.c | 46 ++++++++++++++++++++++++++++++++++++++++++++-- rdma/utils.c | 1 + 2 files changed, 45 insertions(+), 2 deletions(-) diff --git a/rdma/sys.c b/rdma/sys.c index fd785b25..db34cb41 100644 --- a/rdma/sys.c +++ b/rdma/sys.c @@ -40,6 +40,17 @@ static int sys_show_parse_cb(const struct nlmsghdr *nlh,= void *data) mode_str); } =20 + if (tb[RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE]) { + uint8_t pqkey_mode; + + pqkey_mode =3D + mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE]); + + print_color_on_off(PRINT_ANY, COLOR_NONE, "privileged-qkey", + "privileged-qkey %s ", pqkey_mode); + + } + if (tb[RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK]) cof =3D mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK]); =20 @@ -67,8 +78,9 @@ static int sys_show_no_args(struct rd *rd) static int sys_show(struct rd *rd) { const struct rd_cmd cmds[] =3D { - { NULL, sys_show_no_args}, - { "netns", sys_show_no_args}, + { NULL, sys_show_no_args}, + { "netns", sys_show_no_args}, + { "privileged-qkey", sys_show_no_args}, { 0 } }; =20 @@ -86,6 +98,17 @@ static int sys_set_netns_cmd(struct rd *rd, bool enable) return rd_sendrecv_msg(rd, seq); } =20 +static int sys_set_privileged_qkey_cmd(struct rd *rd, bool enable) +{ + uint32_t seq; + + rd_prepare_msg(rd, RDMA_NLDEV_CMD_SYS_SET, + &seq, (NLM_F_REQUEST | NLM_F_ACK)); + mnl_attr_put_u8(rd->nlh, RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE, enable= ); + + return rd_sendrecv_msg(rd, seq); +} + static bool sys_valid_netns_cmd(const char *cmd) { int i; @@ -111,10 +134,28 @@ static int sys_set_netns_args(struct rd *rd) return sys_set_netns_cmd(rd, cmd); } =20 +static int sys_set_privileged_qkey_args(struct rd *rd) +{ + bool cmd; + int ret; + + if (rd_no_arg(rd)) { + pr_err("valid options are: { on | off }\n"); + return -EINVAL; + } + + cmd =3D parse_on_off("privileged-qkey", rd_argv(rd), &ret); + if (ret) + return -EINVAL; + + return sys_set_privileged_qkey_cmd(rd, cmd); +} + static int sys_set_help(struct rd *rd) { pr_out("Usage: %s system set [PARAM] value\n", rd->filename); pr_out(" system set netns { shared | exclusive }\n"); + pr_out(" system set privileged-qkey { on | off }\n"); return 0; } =20 @@ -124,6 +165,7 @@ static int sys_set(struct rd *rd) { NULL, sys_set_help }, { "help", sys_set_help }, { "netns", sys_set_netns_args}, + { "privileged-qkey", sys_set_privileged_qkey_args}, { 0 } }; =20 diff --git a/rdma/utils.c b/rdma/utils.c index 8a091c05..09985069 100644 --- a/rdma/utils.c +++ b/rdma/utils.c @@ -473,6 +473,7 @@ static const enum mnl_attr_data_type nldev_policy[RDMA_= NLDEV_ATTR_MAX] =3D { [RDMA_NLDEV_ATTR_STAT_AUTO_MODE_MASK] =3D MNL_TYPE_U32, [RDMA_NLDEV_ATTR_DEV_DIM] =3D MNL_TYPE_U8, [RDMA_NLDEV_ATTR_RES_RAW] =3D MNL_TYPE_BINARY, + [RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE] =3D MNL_TYPE_U8, }; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Oct 2023 11:22:55.3407 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4e0ba71c-1c44-41cf-abe7-08dbd3ba6767 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000ECDB.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4956 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Signed-off-by: Patrisious Haddad Reviewed-by: Michael Guralnik --- man/man8/rdma-system.8 | 32 +++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/man/man8/rdma-system.8 b/man/man8/rdma-system.8 index ab1d89fd..a2914eb8 100644 --- a/man/man8/rdma-system.8 +++ b/man/man8/rdma-system.8 @@ -23,16 +23,16 @@ rdma-system \- RDMA subsystem configuration =20 .ti -8 .B rdma system set -.BR netns -.BR NEWMODE +.BR netns/privileged_qkey +.BR NEWMODE/NEWSTATE =20 .ti -8 .B rdma system help =20 .SH "DESCRIPTION" -.SS rdma system set - set RDMA subsystem network namespace mode +.SS rdma system set - set RDMA subsystem network namespace mode or privile= ged qkey mode =20 -.SS rdma system show - display RDMA subsystem network namespace mode +.SS rdma system show - display RDMA subsystem network namespace mode and p= rivileged qkey state =20 .PP .I "NEWMODE" @@ -49,12 +49,21 @@ network namespaces is not needed, shared mode can be us= ed. =20 It is preferred to not change the subsystem mode when there is active RDMA traffic running, even though it is supported. +.PP +.I "NEWSTATE" +- specifies the new state of the privileged_qkey parameter. Either enabled= or disabled. +Whereas this decides whether a non-privileged user is allowed to specify a= controlled +QKEY or not, since such QKEYS are considered privileged. + +When this parameter is enabled, non-privileged users will be allowed to +specify a controlled QKEY. =20 .SH "EXAMPLES" .PP rdma system show .RS 4 -Shows the state of RDMA subsystem network namespace mode on the system. +Shows the state of RDMA subsystem network namespace mode on the system and +the state of privileged qkey parameter. .RE .PP rdma system set netns exclusive @@ -69,6 +78,19 @@ Sets the RDMA subsystem in network namespace shared mode= . In this mode RDMA devi are shared among network namespaces. .RE .PP +.PP +rdma system set privileged_qkey enabled +.RS 4 +Sets the privileged_qkey parameter to enabled. In this state non-privilege= d user +is allowed to specify a controlled QKEY. +.RE +.PP +rdma system set privileged_qkey disabled +.RS 4 +Sets the privileged_qkey parameter to disabled. In this state non-privileg= ed user +is *not* allowed to specify a controlled QKEY. +.RE +.PP =20 .SH SEE ALSO .BR rdma (8), --=20 2.18.1