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net: dsa: felix: add port policers

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This patch is a trivial passthrough towards the ocelot library, which
support port policers since commit 2c1d029a01 ("net: mscc: ocelot:
Implement port policers via tc command").

Some data structure conversion between the DSA core and the Ocelot
library is necessary, for policer parameters.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean
2020-03-29 14:52:00 +03:00
committed by David S. Miller
parent 342971766c
commit fc411eaac8
5 changed files with 36 additions and 11 deletions
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24
drivers/net/dsa/ocelot/felix.c
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@@ -13,6 +13,7 @@
#include <linux/of_net.h>
#include <linux/pci.h>
#include <linux/of.h>
#include <net/pkt_sched.h>
#include <net/dsa.h>
#include "felix.h"
@@ -650,6 +651,27 @@ static int felix_cls_flower_stats(struct dsa_switch *ds, int port,
return ocelot_cls_flower_stats(ocelot, port, cls, ingress);
}
static int felix_port_policer_add(struct dsa_switch *ds, int port,
struct dsa_mall_policer_tc_entry *policer)
{
struct ocelot *ocelot = ds->priv;
struct ocelot_policer pol = {
.rate = div_u64(policer->rate_bytes_per_sec, 1000) * 8,
.burst = div_u64(policer->rate_bytes_per_sec *
PSCHED_NS2TICKS(policer->burst),
PSCHED_TICKS_PER_SEC),
};
return ocelot_port_policer_add(ocelot, port, &pol);
}
static void felix_port_policer_del(struct dsa_switch *ds, int port)
{
struct ocelot *ocelot = ds->priv;
ocelot_port_policer_del(ocelot, port);
}
static const struct dsa_switch_ops felix_switch_ops = {
.get_tag_protocol = felix_get_tag_protocol,
.setup = felix_setup,
@@ -683,6 +705,8 @@ static const struct dsa_switch_ops felix_switch_ops = {
.port_txtstamp = felix_txtstamp,
.port_change_mtu = felix_change_mtu,
.port_max_mtu = felix_get_max_mtu,
.port_policer_add = felix_port_policer_add,
.port_policer_del = felix_port_policer_del,
.cls_flower_add = felix_cls_flower_add,
.cls_flower_del = felix_cls_flower_del,
.cls_flower_stats = felix_cls_flower_stats,