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net: lan966x: Add support for TC flower filter statistics

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Add flower filter packet statistics. This will just read the TCAM
counter of the rule, which mention how many packages were hit by this
rule.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Horatiu Vultur 2023-02-07 11:35:49 +01:00 committed by David S. Miller
parent 1fe8a3b61f
commit 9ed138ff37
1 changed files with 20 additions and 0 deletions
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20
drivers/net/ethernet/microchip/lan966x/lan966x_tc_flower.c
View file

@ -234,6 +234,24 @@ static int lan966x_tc_flower_del(struct lan966x_port *port,
return err;
}
static int lan966x_tc_flower_stats(struct lan966x_port *port,
struct flow_cls_offload *f,
struct vcap_admin *admin)
{
struct vcap_counter count = {};
int err;
err = vcap_get_rule_count_by_cookie(port->lan966x->vcap_ctrl,
&count, f->cookie);
if (err)
return err;
flow_stats_update(&f->stats, 0x0, count.value, 0, 0,
FLOW_ACTION_HW_STATS_IMMEDIATE);
return err;
}
int lan966x_tc_flower(struct lan966x_port *port,
struct flow_cls_offload *f,
bool ingress)
@ -252,6 +270,8 @@ int lan966x_tc_flower(struct lan966x_port *port,
return lan966x_tc_flower_add(port, f, admin, ingress);
case FLOW_CLS_DESTROY:
return lan966x_tc_flower_del(port, f, admin);
case FLOW_CLS_STATS:
return lan966x_tc_flower_stats(port, f, admin);
default:
return -EOPNOTSUPP;
}