[PATCH ath-next V14 3/9] wifi: ath12k: move HE MCS mapper to a separate function

Pradeep Kumar Chitrapu
2025-05-21T22:45:56Z

Refactor the HE MCS mapper functionality in
ath12k_mac_copy_he_cap() into a new function.

This helps improve readability, extensibility and will be used
when adding support for 160 MHz bandwidth in subsequent patches.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Co-developed-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
---
drivers/net/wireless/ath/ath12k/mac.c | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 18bf6ad13b5f..5b431444f7f5 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -6994,12 +6994,24 @@ static __le16 ath12k_mac_setup_he_6ghz_cap(struct ath12k_pdev_cap *pcap,
return cpu_to_le16(bcap->he_6ghz_capa);
}

+static void ath12k_mac_set_hemcsmap(struct ath12k_band_cap *band_cap,
+ struct ieee80211_sta_he_cap *he_cap)
+{
+ struct ieee80211_he_mcs_nss_supp *mcs_nss = &he_cap->he_mcs_nss_supp;
+
+ mcs_nss->rx_mcs_80 = cpu_to_le16(band_cap->he_mcs & 0xffff);
+ mcs_nss->tx_mcs_80 = cpu_to_le16(band_cap->he_mcs & 0xffff);
+ mcs_nss->rx_mcs_160 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
+ mcs_nss->tx_mcs_160 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
+ mcs_nss->rx_mcs_80p80 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
+ mcs_nss->tx_mcs_80p80 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
+}
+
static void ath12k_mac_copy_he_cap(struct ath12k_band_cap *band_cap,
int iftype, u8 num_tx_chains,
struct ieee80211_sta_he_cap *he_cap)
{
struct ieee80211_he_cap_elem *he_cap_elem = &he_cap->he_cap_elem;
- struct ieee80211_he_mcs_nss_supp *mcs_nss = &he_cap->he_mcs_nss_supp;

he_cap->has_he = true;
memcpy(he_cap_elem->mac_cap_info, band_cap->he_cap_info,
@@ -7039,13 +7051,7 @@ static void ath12k_mac_copy_he_cap(struct ath12k_band_cap *band_cap,
break;
}

- mcs_nss->rx_mcs_80 = cpu_to_le16(band_cap->he_mcs & 0xffff);
- mcs_nss->tx_mcs_80 = cpu_to_le16(band_cap->he_mcs & 0xffff);
- mcs_nss->rx_mcs_160 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
- mcs_nss->tx_mcs_160 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
- mcs_nss->rx_mcs_80p80 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
- mcs_nss->tx_mcs_80p80 = cpu_to_le16((band_cap->he_mcs >> 16) & 0xffff);
-
+ ath12k_mac_set_hemcsmap(band_cap, he_cap);
memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
if (he_cap_elem->phy_cap_info[6] &
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)
--
2.43.0