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Miller" , Jakub Kicinski , Madalin Bucur , netdev@vger.kernel.org Cc: Russell King , Paolo Abeni , linux-arm-kernel@lists.infradead.org, Eric Dumazet , linux-kernel@vger.kernel.org, Sean Anderson , Li Yang , linuxppc-dev@lists.ozlabs.org Subject: [PATCH net-next v2 27/35] soc: fsl: qbman: Add CGR update function Date: Tue, 28 Jun 2022 18:13:56 -0400 Message-Id: <20220628221404.1444200-28-sean.anderson@seco.com> X-Mailer: git-send-email 2.35.1.1320.gc452695387.dirty In-Reply-To: <20220628221404.1444200-1-sean.anderson@seco.com> References: <20220628221404.1444200-1-sean.anderson@seco.com> X-ClientProxiedBy: BL1P222CA0011.NAMP222.PROD.OUTLOOK.COM (2603:10b6:208:2c7::16) To DB7PR03MB4972.eurprd03.prod.outlook.com (2603:10a6:10:7d::22) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 6ad23b44-cccf-4850-d1ce-08da5953a4ee X-MS-TrafficTypeDiagnostic: DB6PR03MB3013:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: seco.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6ad23b44-cccf-4850-d1ce-08da5953a4ee X-MS-Exchange-CrossTenant-AuthSource: DB7PR03MB4972.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Jun 2022 22:15:01.1712 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: bebe97c3-6438-442e-ade3-ff17aa50e733 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: aLj3zYBOO5wxfwTqWQE9+pMExXbdA060oYxIMcb3YKYMw+OhVekowaJZpzHPmZ01vRCVYak1LTYz+TSLekHxTA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB6PR03MB3013 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220628_151515_366726_C68ED556 X-CRM114-Status: GOOD ( 13.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds a function to update a CGR with new parameters. qman_cgr_create can almost be used for this (with flags=0), but it's not suitable because it also registers the callback function. The _safe variant was modeled off of qman_cgr_delete_safe. However, we handle multiple arguments and a return value. Signed-off-by: Sean Anderson --- Changes in v2: - New drivers/soc/fsl/qbman/qman.c | 47 ++++++++++++++++++++++++++++++++++++ include/soc/fsl/qman.h | 9 +++++++ 2 files changed, 56 insertions(+) diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c index eb6600aab09b..68b825ea10f1 100644 --- a/drivers/soc/fsl/qbman/qman.c +++ b/drivers/soc/fsl/qbman/qman.c @@ -2568,6 +2568,53 @@ void qman_delete_cgr_safe(struct qman_cgr *cgr) } EXPORT_SYMBOL(qman_delete_cgr_safe); +static int qman_update_cgr(struct qman_cgr *cgr, struct qm_mcc_initcgr *opts) +{ + int ret; + unsigned long irqflags; + struct qman_portal *p = qman_cgr_get_affine_portal(cgr); + + if (!p) + return -EINVAL; + + spin_lock_irqsave(&p->cgr_lock, irqflags); + ret = qm_modify_cgr(cgr, 0, opts); + spin_unlock_irqrestore(&p->cgr_lock, irqflags); + put_affine_portal(); + return ret; +} + +struct update_cgr_params { + struct qman_cgr *cgr; + struct qm_mcc_initcgr *opts; + int ret; +}; + +static void qman_update_cgr_smp_call(void *p) +{ + struct update_cgr_params *params = p; + + params->ret = qman_update_cgr(params->cgr, params->opts); +} + +int qman_update_cgr_safe(struct qman_cgr *cgr, struct qm_mcc_initcgr *opts) +{ + struct update_cgr_params params = { + .cgr = cgr, + .opts = opts, + }; + + preempt_disable(); + if (qman_cgr_cpus[cgr->cgrid] != smp_processor_id()) + smp_call_function_single(qman_cgr_cpus[cgr->cgrid], + qman_update_cgr_smp_call, ¶ms, true); + else + params.ret = qman_update_cgr(cgr, opts); + preempt_enable(); + return params.ret; +} +EXPORT_SYMBOL(qman_update_cgr_safe); + /* Cleanup FQs */ static int _qm_mr_consume_and_match_verb(struct qm_portal *p, int v) diff --git a/include/soc/fsl/qman.h b/include/soc/fsl/qman.h index 59eeba31c192..0d3d6beb7fdb 100644 --- a/include/soc/fsl/qman.h +++ b/include/soc/fsl/qman.h @@ -1171,6 +1171,15 @@ int qman_delete_cgr(struct qman_cgr *cgr); */ void qman_delete_cgr_safe(struct qman_cgr *cgr); +/** + * qman_update_cgr_safe - Modifies a congestion group object from any CPU + * @cgr: the 'cgr' object to modify + * @opts: state of the CGR settings + * + * This will select the proper CPU and modify the CGR settings. + */ +int qman_update_cgr_safe(struct qman_cgr *cgr, struct qm_mcc_initcgr *opts); + /** * qman_query_cgr_congested - Queries CGR's congestion status * @cgr: the 'cgr' object to query