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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Claudiu Manoil , Alexandre Belloni , UNGLinuxDriver@microchip.com, Xiaoliang Yang , linux-kernel@vger.kernel.org, Ferenc Fejes , Simon Horman Subject: [PATCH net-next 5/7] net: mscc: ocelot: add support for mqprio offload Date: Sat, 15 Apr 2023 20:05:49 +0300 Message-Id: <20230415170551.3939607-6-vladimir.oltean@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230415170551.3939607-1-vladimir.oltean@nxp.com> References: <20230415170551.3939607-1-vladimir.oltean@nxp.com> X-ClientProxiedBy: FR0P281CA0100.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:a9::6) To AM0PR04MB6452.eurprd04.prod.outlook.com (2603:10a6:208:16d::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM0PR04MB6452:EE_|PAXPR04MB8158:EE_ X-MS-Office365-Filtering-Correlation-Id: 53eb5c32-c312-4484-574a-08db3dd3b496 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:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM0PR04MB6452.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(136003)(366004)(39860400002)(376002)(346002)(396003)(451199021)(316002)(4326008)(38100700002)(38350700002)(6916009)(66556008)(66946007)(66476007)(5660300002)(44832011)(2616005)(6666004)(52116002)(36756003)(86362001)(6486002)(966005)(41300700001)(54906003)(1076003)(186003)(6506007)(26005)(6512007)(2906002)(8676002)(7416002)(8936002)(83380400001)(478600001);DIR:OUT;SFP:1101; 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The reason we add this is to be able to parse one more field added to struct tc_mqprio_qopt_offload, namely preemptible_tcs. Signed-off-by: Vladimir Oltean Reviewed-by: Ferenc Fejes Reviewed-by: Simon Horman Reviewed-by: Florian Fainelli --- Diff vs https://lore.kernel.org/netdev/20230220122343.1156614-11-vladimir.oltean@nxp.com/: none. drivers/net/dsa/ocelot/felix_vsc9959.c | 9 +++++ drivers/net/ethernet/mscc/ocelot.c | 50 ++++++++++++++++++++++++++ include/soc/mscc/ocelot.h | 4 +++ 3 files changed, 63 insertions(+) diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c index 478893c06f56..66ec2740e3cb 100644 --- a/drivers/net/dsa/ocelot/felix_vsc9959.c +++ b/drivers/net/dsa/ocelot/felix_vsc9959.c @@ -1612,6 +1612,13 @@ static int vsc9959_qos_port_cbs_set(struct dsa_switch *ds, int port, static int vsc9959_qos_query_caps(struct tc_query_caps_base *base) { switch (base->type) { + case TC_SETUP_QDISC_MQPRIO: { + struct tc_mqprio_caps *caps = base->caps; + + caps->validate_queue_counts = true; + + return 0; + } case TC_SETUP_QDISC_TAPRIO: { struct tc_taprio_caps *caps = base->caps; @@ -1635,6 +1642,8 @@ static int vsc9959_port_setup_tc(struct dsa_switch *ds, int port, return vsc9959_qos_query_caps(type_data); case TC_SETUP_QDISC_TAPRIO: return vsc9959_qos_port_tas_set(ocelot, port, type_data); + case TC_SETUP_QDISC_MQPRIO: + return ocelot_port_mqprio(ocelot, port, type_data); case TC_SETUP_QDISC_CBS: return vsc9959_qos_port_cbs_set(ds, port, type_data); default: diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index 1502bb2c8ea7..8dc5fb1bc61b 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include "ocelot.h" @@ -2699,6 +2700,55 @@ void ocelot_port_mirror_del(struct ocelot *ocelot, int from, bool ingress) } EXPORT_SYMBOL_GPL(ocelot_port_mirror_del); +static void ocelot_port_reset_mqprio(struct ocelot *ocelot, int port) +{ + struct net_device *dev = ocelot->ops->port_to_netdev(ocelot, port); + + netdev_reset_tc(dev); +} + +int ocelot_port_mqprio(struct ocelot *ocelot, int port, + struct tc_mqprio_qopt_offload *mqprio) +{ + struct net_device *dev = ocelot->ops->port_to_netdev(ocelot, port); + struct netlink_ext_ack *extack = mqprio->extack; + struct tc_mqprio_qopt *qopt = &mqprio->qopt; + int num_tc = qopt->num_tc; + int tc, err; + + if (!num_tc) { + ocelot_port_reset_mqprio(ocelot, port); + return 0; + } + + err = netdev_set_num_tc(dev, num_tc); + if (err) + return err; + + for (tc = 0; tc < num_tc; tc++) { + if (qopt->count[tc] != 1) { + NL_SET_ERR_MSG_MOD(extack, + "Only one TXQ per TC supported"); + return -EINVAL; + } + + err = netdev_set_tc_queue(dev, tc, 1, qopt->offset[tc]); + if (err) + goto err_reset_tc; + } + + err = netif_set_real_num_tx_queues(dev, num_tc); + if (err) + goto err_reset_tc; + + return 0; + +err_reset_tc: + ocelot_port_reset_mqprio(ocelot, port); + return err; +} +EXPORT_SYMBOL_GPL(ocelot_port_mqprio); + void ocelot_init_port(struct ocelot *ocelot, int port) { struct ocelot_port *ocelot_port = ocelot->ports[port]; diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index ee8d43dc5c06..9596c79e9223 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -11,6 +11,8 @@ #include #include +struct tc_mqprio_qopt_offload; + /* Port Group IDs (PGID) are masks of destination ports. * * For L2 forwarding, the switch performs 3 lookups in the PGID table for each @@ -1154,6 +1156,8 @@ int ocelot_port_set_mm(struct ocelot *ocelot, int port, struct netlink_ext_ack *extack); int ocelot_port_get_mm(struct ocelot *ocelot, int port, struct ethtool_mm_state *state); +int ocelot_port_mqprio(struct ocelot *ocelot, int port, + struct tc_mqprio_qopt_offload *mqprio); #if IS_ENABLED(CONFIG_BRIDGE_MRP) int ocelot_mrp_add(struct ocelot *ocelot, int port,