diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-05-03 15:01:50 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-04 20:42:15 -0700 |
| commit | 91d350d661bf9c7d4afeb585a81ad694280cc0fb (patch) | |
| tree | 32eac9e804685fee26efda0de3b19c9dc99630aa /drivers/net/ethernet/mscc/ocelot_vcap.c | |
| parent | 8e90c499bd6816f6dc4127f071179e7bd190e5aa (diff) | |
net: mscc: ocelot: don't use magic numbers for OCELOT_POLICER_DISCARD
OCELOT_POLICER_DISCARD helps "kill dropped packets dead" since a
PERMIT/DENY mask mode with a port mask of 0 isn't enough to stop the CPU
port from receiving packets removed from the forwarding path.
The hardcoded initialization done for it in ocelot_vcap_init() is
confusing. All we need from it is to have a rate and a burst size of 0.
Reuse qos_policer_conf_set() for that purpose.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mscc/ocelot_vcap.c')
| -rw-r--r-- | drivers/net/ethernet/mscc/ocelot_vcap.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_vcap.c b/drivers/net/ethernet/mscc/ocelot_vcap.c index d8a5e0d3e99c..cdbe29f2ddc7 100644 --- a/drivers/net/ethernet/mscc/ocelot_vcap.c +++ b/drivers/net/ethernet/mscc/ocelot_vcap.c @@ -1394,22 +1394,18 @@ static void ocelot_vcap_detect_constants(struct ocelot *ocelot, int ocelot_vcap_init(struct ocelot *ocelot) { - int i; + struct qos_policer_conf cpu_drop = { + .mode = MSCC_QOS_RATE_MODE_DATA, + }; + int ret, i; /* Create a policer that will drop the frames for the cpu. * This policer will be used as action in the acl rules to drop * frames. */ - ocelot_write_gix(ocelot, 0x299, ANA_POL_MODE_CFG, - OCELOT_POLICER_DISCARD); - ocelot_write_gix(ocelot, 0x1, ANA_POL_PIR_CFG, - OCELOT_POLICER_DISCARD); - ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_PIR_STATE, - OCELOT_POLICER_DISCARD); - ocelot_write_gix(ocelot, 0x0, ANA_POL_CIR_CFG, - OCELOT_POLICER_DISCARD); - ocelot_write_gix(ocelot, 0x3fffff, ANA_POL_CIR_STATE, - OCELOT_POLICER_DISCARD); + ret = qos_policer_conf_set(ocelot, OCELOT_POLICER_DISCARD, &cpu_drop); + if (ret) + return ret; for (i = 0; i < OCELOT_NUM_VCAP_BLOCKS; i++) { struct ocelot_vcap_block *block = &ocelot->block[i]; |