net: stmmac: restructure tc implementation for RX VLAN Priority steering

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The current tc_add_flow() and tc_del_flow() use hardware L3 & L4 filters
as offloading. The number of L3/L4 filters is read from L3L4FNUM field
from MAC_HW_Feature1 register and is used to alloc priv->tc_entries[].

For RX frame steering based on VLAN priority offloading, we use
MAC_RXQ_CTRL2 & MAC_RXQ_CTRL3 registers and all VLAN priority level
can be configured independent from L3 & L4 filters.

Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Ong Boon Leong 2021-03-19 01:22:03 +08:00 • committed by David S. Miller

parent 3122216255

commit bd0f670e79

1 changed files with 22 additions and 2 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c

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