mirror_ubuntu-kernels/include/linux/dsa
Vladimir Oltean 994d2cbb08 net: dsa: tag_sja1105: be dsa_loop-safe
Add support for tag_sja1105 running on non-sja1105 DSA ports, by making
sure that every time we dereference dp->priv, we check the switch's
dsa_switch_ops (otherwise we access a struct sja1105_port structure that
is in fact something else).

This adds an unconditional build-time dependency between sja1105 being
built as module => tag_sja1105 must also be built as module. This was
there only for PTP before.

Some sane defaults must also take place when not running on sja1105
hardware. These are:

- sja1105_xmit_tpid: the sja1105 driver uses different VLAN protocols
  depending on VLAN awareness and switch revision (when an encapsulated
  VLAN must be sent). Default to 0x8100.

- sja1105_rcv_meta_state_machine: this aggregates PTP frames with their
  metadata timestamp frames. When running on non-sja1105 hardware, don't
  do that and accept all frames unmodified.

- sja1105_defer_xmit: calls sja1105_port_deferred_xmit in sja1105_main.c
  which writes a management route over SPI. When not running on sja1105
  hardware, bypass the SPI write and send the frame as-is.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:33:15 +01:00
..
8021q.h net: dsa: sja1105: add bridge TX data plane offload based on tag_8021q 2021-07-26 22:35:22 +01:00
brcm.h net: dsa: move the Broadcom tag information in a separate header file 2021-01-07 15:42:07 -08:00
lan9303.h net: dsa: lan9303: phy_addr_sel_strap rename and retype 2018-01-04 13:35:07 -05:00
loop.h net: dsa: loop: Wire-up MTU callbacks 2020-08-03 18:19:23 -07:00
ocelot.h net: ocelot: Remove ocelot_xfh_get_cpuq 2021-03-16 15:49:52 -07:00
sja1105.h net: dsa: tag_sja1105: be dsa_loop-safe 2021-08-18 10:33:15 +01:00