[PATCH ath-next] wifi: ath12k: Advertise multicast Ethernet encapsulation offload support

[Rameshkumar Sundaram]

On 6/23/2026 3:35 PM, Tamizh Chelvam Raja wrote:
> Advertise IEEE80211_OFFLOAD_ENCAP_MCAST to inform mac80211 that
> multicast frame encapsulation is handled in hardware. This allows
> mac80211 to pass Ethernet-formatted multicast frames directly to
> the driver.
> 
> In ath12k_wifi7_mac_op_tx(), refine the logic that selects the MLO
> multicast replication path. Add a sta pointer check so that only unicast
> Hardware-encap frames use the direct transmit path, while multicast
> Hardware-encap frames fall through to the MLO replication loop and are
> transmitted on each active link.
> 
> In the MLO replication loop, use skb_clone() for Hardware-encap frames.
> These frames are already in Ethernet format and do not require
> 802.11 link address rewriting by ath12k_mlo_mcast_update_tx_link_address().
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Tamizh Chelvam Raja <tamizh.raja at oss.qualcomm.com>

Reviewed-by: Rameshkumar Sundaram <rameshkumar.sundaram at oss.qualcomm.com>