From: Baochen Qiang Date: Mon, 20 Jul 2026 06:43:25 +0000 (+0800) Subject: wifi: ath12k: add support for HTT_T2H_MSG_TYPE_MLO_RX_PEER_MAP X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a08455ee85a2b32a5503b84fdc6b88a144cb2388;p=thirdparty%2Fkernel%2Fstable.git wifi: ath12k: add support for HTT_T2H_MSG_TYPE_MLO_RX_PEER_MAP Firmware on chips that allocate the MLD peer ID itself (WCN7850 and QCC2072) reports the assignment back to the host through HTT_T2H_MSG_TYPE_MLO_RX_PEER_MAP. The message carries the chosen MLD peer id, the MLD MAC address etc. Add the message type, the on-the-wire struct, the field masks and a handler that parses them out. The host-side state update (publishing the dp peer into ath12k_dp_hw::dp_peers[], propagating the ID to ath12k_dp_link_peer::ml_id and ath12k_sta::ml_peer_id) is added in a follow-up patch; Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3 Signed-off-by: Baochen Qiang Reviewed-by: Rameshkumar Sundaram Link: https://patch.msgid.link/20260720-ath12k-fw-allocated-ml-peer-id-v2-4-630632758a80@oss.qualcomm.com Signed-off-by: Jeff Johnson --- diff --git a/drivers/net/wireless/ath/ath12k/dp_htt.c b/drivers/net/wireless/ath/ath12k/dp_htt.c index 52e10059c6d5..150b190f9c7f 100644 --- a/drivers/net/wireless/ath/ath12k/dp_htt.c +++ b/drivers/net/wireless/ath/ath12k/dp_htt.c @@ -575,6 +575,33 @@ exit: rcu_read_unlock(); } +static void ath12k_dp_htt_mlo_peer_map_handler(struct ath12k_base *ab, + struct sk_buff *skb) +{ + struct htt_resp_msg *resp = (struct htt_resp_msg *)skb->data; + struct htt_t2h_mlo_peer_map_event *ev = &resp->mlo_peer_map_ev; + u16 raw_peer_id, peer_id, addr_h16; + u8 peer_addr[ETH_ALEN]; + + if (skb->len < sizeof(*ev)) { + ath12k_warn(ab, "unexpected htt mlo peer map event len %u\n", + skb->len); + return; + } + + raw_peer_id = le32_get_bits(ev->info0, + HTT_T2H_MLO_PEER_MAP_INFO0_MLO_PEER_ID); + peer_id = raw_peer_id | ATH12K_PEER_ML_ID_VALID; + + addr_h16 = le32_get_bits(ev->info1, + HTT_T2H_MLO_PEER_MAP_INFO1_MAC_ADDR_H16); + ath12k_dp_get_mac_addr(le32_to_cpu(ev->mac_addr_l32), addr_h16, + peer_addr); + + ath12k_dbg(ab, ATH12K_DBG_DP_HTT, "htt mlo peer map peer %pM id %u\n", + peer_addr, peer_id); +} + void ath12k_dp_htt_htc_t2h_msg_handler(struct ath12k_base *ab, struct sk_buff *skb) { @@ -659,6 +686,9 @@ void ath12k_dp_htt_htc_t2h_msg_handler(struct ath12k_base *ab, case HTT_T2H_MSG_TYPE_MLO_TIMESTAMP_OFFSET_IND: ath12k_htt_mlo_offset_event_handler(ab, skb); break; + case HTT_T2H_MSG_TYPE_MLO_RX_PEER_MAP: + ath12k_dp_htt_mlo_peer_map_handler(ab, skb); + break; default: ath12k_dbg(ab, ATH12K_DBG_DP_HTT, "dp_htt event %d not handled\n", type); diff --git a/drivers/net/wireless/ath/ath12k/dp_htt.h b/drivers/net/wireless/ath/ath12k/dp_htt.h index 987689f11cda..2db7fb27c036 100644 --- a/drivers/net/wireless/ath/ath12k/dp_htt.h +++ b/drivers/net/wireless/ath/ath12k/dp_htt.h @@ -930,6 +930,7 @@ enum htt_t2h_msg_type { HTT_T2H_MSG_TYPE_EXT_STATS_CONF = 0x1c, HTT_T2H_MSG_TYPE_BKPRESSURE_EVENT_IND = 0x24, HTT_T2H_MSG_TYPE_MLO_TIMESTAMP_OFFSET_IND = 0x28, + HTT_T2H_MSG_TYPE_MLO_RX_PEER_MAP = 0x29, HTT_T2H_MSG_TYPE_PEER_MAP3 = 0x2b, HTT_T2H_MSG_TYPE_VDEV_TXRX_STATS_PERIODIC_IND = 0x2c, }; @@ -974,11 +975,22 @@ struct htt_t2h_peer_unmap_event { __le32 info1; } __packed; +#define HTT_T2H_MLO_PEER_MAP_INFO0_MLO_PEER_ID GENMASK(23, 8) +#define HTT_T2H_MLO_PEER_MAP_INFO1_MAC_ADDR_H16 GENMASK(15, 0) + +struct htt_t2h_mlo_peer_map_event { + __le32 info0; + __le32 mac_addr_l32; + __le32 info1; + __le32 reserved[5]; +} __packed; + struct htt_resp_msg { union { struct htt_t2h_version_conf_msg version_msg; struct htt_t2h_peer_map_event peer_map_ev; struct htt_t2h_peer_unmap_event peer_unmap_ev; + struct htt_t2h_mlo_peer_map_event mlo_peer_map_ev; }; } __packed;