From: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
To: davem@davemloft.net, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: vinicius.gomes@intel.com, jhs@mojatatu.com,
xiyou.wangcong@gmail.com, jiri@resnulli.us, kuba@kernel.org,
Jose.Abreu@synopsys.com, allan.nielsen@microchip.com,
joergen.andreasen@microchip.com, UNGLinuxDriver@microchip.com,
xiaoliang.yang_1@nxp.com, po.liu@nxp.com, claudiu.manoil@nxp.com,
alexandru.marginean@nxp.com, vladimir.oltean@nxp.com,
leoyang.li@nxp.com, mingkai.hu@nxp.com
Subject: [RFC, net-next 3/3] net: dsa: felix: tc-taprio preempt set support
Date: Tue, 20 Oct 2020 12:04:58 +0800 [thread overview]
Message-ID: <20201020040458.39794-4-xiaoliang.yang_1@nxp.com> (raw)
In-Reply-To: <20201020040458.39794-1-xiaoliang.yang_1@nxp.com>
After using ethtool to enable and configure frame preemption on
vsc9959, use tc-taprio preempt set to mark the preempt queues and
express queueus.
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
---
drivers/net/dsa/ocelot/felix_vsc9959.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index c0e41d499639..f2b9a5ee1ff5 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -1310,6 +1310,20 @@ static int vsc9959_qos_port_cbs_set(struct dsa_switch *ds, int port,
return 0;
}
+static int vsc9959_port_preempt_queues(struct ocelot *ocelot, int port,
+ struct tc_preempt_qopt_offload *qopt)
+{
+ u8 p_queues = qopt->preemptible_queues;
+
+ ocelot_rmw_rix(ocelot,
+ QSYS_PREEMPTION_CFG_P_QUEUES(p_queues),
+ QSYS_PREEMPTION_CFG_P_QUEUES_M,
+ QSYS_PREEMPTION_CFG,
+ port);
+
+ return 0;
+}
+
static int vsc9959_port_setup_tc(struct dsa_switch *ds, int port,
enum tc_setup_type type,
void *type_data)
@@ -1321,6 +1335,8 @@ static int vsc9959_port_setup_tc(struct dsa_switch *ds, int port,
return vsc9959_qos_port_tas_set(ocelot, port, type_data);
case TC_SETUP_QDISC_CBS:
return vsc9959_qos_port_cbs_set(ds, port, type_data);
+ case TC_SETUP_PREEMPT:
+ return vsc9959_port_preempt_queues(ocelot, port, type_data);
default:
return -EOPNOTSUPP;
}
--
2.18.4
next prev parent reply other threads:[~2020-10-20 4:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-20 4:04 [RFC, net-next 0/3] net: dsa: felix: frame preemption support Xiaoliang Yang
2020-10-20 4:04 ` [RFC, net-next 1/3] net: dsa: ethtool preempt ops support on slave ports Xiaoliang Yang
2020-10-20 4:04 ` [RFC, net-next 2/3] net: dsa: felix: add preempt queues set support for vsc9959 Xiaoliang Yang
2020-11-06 15:40 ` Vladimir Oltean
2020-10-20 4:04 ` Xiaoliang Yang [this message]
2020-10-20 11:04 ` [RFC, net-next 0/3] net: dsa: felix: frame preemption support Vladimir Oltean
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