From d29591d5b52eaa62bc8c07ec83fe63018b5546ea Mon Sep 17 00:00:00 2001 From: Nithyanantham Paramasivam Date: Fri, 18 Jul 2025 08:25:13 +0530 Subject: [PATCH] wifi: ath12k: Advertise encapsulation/decapsulation offload support to mac80211 Currently, the mac80211 layer handles construction and parsing of 802.11 headers during packet transmission and reception. Offloading encapsulation and decapsulation to hardware can significantly enhance performance. Check the service bit to determine if the firmware supports Ethernet offload. If supported, advertise the capability to mac80211 to bypass software-based 802.11 header processing. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00217-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Nithyanantham Paramasivam Reviewed-by: Vasanthakumar Thiagarajan Link: https://patch.msgid.link/20250718025513.32982-4-nithyanantham.paramasivam@oss.qualcomm.com Signed-off-by: Jeff Johnson --- drivers/net/wireless/ath/ath12k/mac.c | 5 +++++ drivers/net/wireless/ath/ath12k/wmi.h | 1 + 2 files changed, 6 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index c56201fbee7ad..05250fa0600d6 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -13755,6 +13755,11 @@ static int ath12k_mac_hw_register(struct ath12k_hw *ah) ieee80211_hw_set(hw, REPORTS_LOW_ACK); ieee80211_hw_set(hw, NO_VIRTUAL_MONITOR); + if (test_bit(WMI_TLV_SERVICE_ETH_OFFLOAD, ar->wmi->wmi_ab->svc_map)) { + ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); + ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); + } + if (cap->nss_ratio_enabled) ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h index 5b782258f8708..f3b0a6f57ec2b 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.h +++ b/drivers/net/wireless/ath/ath12k/wmi.h @@ -2255,6 +2255,7 @@ enum wmi_tlv_service { WMI_TLV_SERVICE_WMSK_COMPACTION_RX_TLVS = 361, WMI_TLV_SERVICE_PEER_METADATA_V1A_V1B_SUPPORT = 365, + WMI_TLV_SERVICE_ETH_OFFLOAD = 461, WMI_MAX_EXT2_SERVICE, }; -- 2.47.2