diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2023-07-04 01:05:45 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2023-07-04 19:42:27 +0100 |
| commit | a372d66af48506d9f7aaae2a474cd18f14d98cb8 (patch) | |
| tree | aeccb79f2d01079501b28b59ed1c5ac7eff4b6e5 /drivers/net/dsa/sja1105/sja1105_main.c | |
| parent | net: dsa: tag_sja1105: fix MAC DA patching from meta frames (diff) | |
| download | linux-a372d66af48506d9f7aaae2a474cd18f14d98cb8.tar.xz linux-a372d66af48506d9f7aaae2a474cd18f14d98cb8.zip | |
net: dsa: sja1105: always enable the send_meta options
incl_srcpt has the limitation, mentioned in commit b4638af8885a ("net:
dsa: sja1105: always enable the INCL_SRCPT option"), that frames with a
MAC DA of 01:80:c2:xx:yy:zz will be received as 01:80:c2:00:00:zz unless
PTP RX timestamping is enabled.
The incl_srcpt option was initially unconditionally enabled, then that
changed with commit 42824463d38d ("net: dsa: sja1105: Limit use of
incl_srcpt to bridge+vlan mode"), then again with b4638af8885a ("net:
dsa: sja1105: always enable the INCL_SRCPT option"). Bottom line is that
it now needs to be always enabled, otherwise the driver does not have a
reliable source of information regarding source_port and switch_id for
link-local traffic (tag_8021q VLANs may be imprecise since now they
identify an entire bridging domain when ports are not standalone).
If we accept that PTP RX timestamping (and therefore, meta frame
generation) is always enabled in hardware, then that limitation could be
avoided and packets with any MAC DA can be properly received, because
meta frames do contain the original bytes from the MAC DA of their
associated link-local packet.
This change enables meta frame generation unconditionally, which also
has the nice side effects of simplifying the switch control path
(a switch reset is no longer required on hwtstamping settings change)
and the tagger data path (it no longer needs to be informed whether to
expect meta frames or not - it always does).
Fixes: 227d07a07ef1 ("net: dsa: sja1105: Add support for traffic through standalone ports")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/sja1105/sja1105_main.c')
| -rw-r--r-- | drivers/net/dsa/sja1105/sja1105_main.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c index dd154b2b9680..3529a565b4aa 100644 --- a/drivers/net/dsa/sja1105/sja1105_main.c +++ b/drivers/net/dsa/sja1105/sja1105_main.c @@ -867,11 +867,11 @@ static int sja1105_init_general_params(struct sja1105_private *priv) .mac_fltres1 = SJA1105_LINKLOCAL_FILTER_A, .mac_flt1 = SJA1105_LINKLOCAL_FILTER_A_MASK, .incl_srcpt1 = true, - .send_meta1 = false, + .send_meta1 = true, .mac_fltres0 = SJA1105_LINKLOCAL_FILTER_B, .mac_flt0 = SJA1105_LINKLOCAL_FILTER_B_MASK, .incl_srcpt0 = true, - .send_meta0 = false, + .send_meta0 = true, /* Default to an invalid value */ .mirr_port = priv->ds->num_ports, /* No TTEthernet */ @@ -2215,7 +2215,6 @@ static int sja1105_reload_cbs(struct sja1105_private *priv) static const char * const sja1105_reset_reasons[] = { [SJA1105_VLAN_FILTERING] = "VLAN filtering", - [SJA1105_RX_HWTSTAMPING] = "RX timestamping", [SJA1105_AGEING_TIME] = "Ageing time", [SJA1105_SCHEDULING] = "Time-aware scheduling", [SJA1105_BEST_EFFORT_POLICING] = "Best-effort policing", |