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openwrt/package/kernel/mac80211/patches/ath12k/104-6-wifi-ath12k-add-support-for-setting-fixed-HE-rate-GI-LTF.patch
Mantas Pucka 903566c2d6 mac80211: refresh patches 
Previous commits missed some refreshing

Signed-off-by: Mantas Pucka <mantas@8devices.com>
Link: https://github.com/openwrt/openwrt/pull/18512
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-04-18 17:51:45 +02:00

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From: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
To: <ath12k@lists.infradead.org>
CC: <linux-wireless@vger.kernel.org>,
Pradeep Kumar Chitrapu
<quic_pradeepc@quicinc.com>,
Muna Sinada <quic_msinada@quicinc.com>,
"Jeff
Johnson" <quic_jjohnson@quicinc.com>
Subject: [PATCH V8 6/9] wifi: ath12k: add support for setting fixed HE
rate/GI/LTF
Date: Wed, 18 Sep 2024 14:20:53 -0700
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Add support to set fixed HE rate/GI/LTF values using nl80211.
Reuse parts of the existing code path already used for HT/VHT
to implement the new helpers symmetrically, similar to how
HT/VHT is handled.
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 | 604 ++++++++++++++++++++++++--
drivers/net/wireless/ath/ath12k/wmi.h | 18 +
2 files changed, 574 insertions(+), 48 deletions(-)
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -441,6 +441,18 @@ ath12k_mac_max_vht_nss(const u16 *vht_mc
return 1;
}
+static u32
+ath12k_mac_max_he_nss(const u16 he_mcs_mask[NL80211_HE_NSS_MAX])
+{
+ int nss;
+
+ for (nss = NL80211_HE_NSS_MAX - 1; nss >= 0; nss--)
+ if (he_mcs_mask[nss])
+ return nss + 1;
+
+ return 1;
+}
+
static u8 ath12k_parse_mpdudensity(u8 mpdudensity)
{
/* From IEEE Std 802.11-2020 defined values for "Minimum MPDU Start Spacing":
@@ -1916,6 +1928,14 @@ static void ath12k_peer_assoc_h_ht(struc
arg->peer_rate_caps |= WMI_HOST_RC_CW40_FLAG;
}
+ /* As firmware handles these two flags (IEEE80211_HT_CAP_SGI_20
+ * and IEEE80211_HT_CAP_SGI_40) for enabling SGI, reset both
+ * flags if guard interval is Default GI
+ */
+ if (arvif->bitrate_mask.control[band].gi == NL80211_TXRATE_DEFAULT_GI)
+ arg->peer_ht_caps &= ~(IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40);
+
if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) {
if (ht_cap->cap & (IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40))
@@ -2039,11 +2059,12 @@ static void ath12k_peer_assoc_h_vht(stru
struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
struct cfg80211_chan_def def;
enum nl80211_band band;
- const u16 *vht_mcs_mask;
+ u16 *vht_mcs_mask;
u16 tx_mcs_map;
u8 ampdu_factor;
u8 max_nss, vht_mcs;
- int i;
+ int i, vht_nss, nss_idx;
+ bool user_rate_valid = true;
if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
return;
@@ -2086,6 +2107,25 @@ static void ath12k_peer_assoc_h_vht(stru
if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_160)
arg->bw_160 = true;
+ vht_nss = ath12k_mac_max_vht_nss(vht_mcs_mask);
+
+ if (vht_nss > sta->deflink.rx_nss) {
+ user_rate_valid = false;
+ for (nss_idx = sta->deflink.rx_nss - 1; nss_idx >= 0; nss_idx--) {
+ if (vht_mcs_mask[nss_idx]) {
+ user_rate_valid = true;
+ break;
+ }
+ }
+ }
+
+ if (!user_rate_valid) {
+ ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
+ "Setting vht range MCS value to peer supported nss:%d for peer %pM\n",
+ sta->deflink.rx_nss, sta->deflink.addr);
+ vht_mcs_mask[sta->deflink.rx_nss - 1] = vht_mcs_mask[vht_nss - 1];
+ }
+
/* Calculate peer NSS capability from VHT capabilities if STA
* supports VHT.
*/
@@ -2125,23 +2165,105 @@ static void ath12k_peer_assoc_h_vht(stru
/* TODO: rxnss_override */
}
+static int ath12k_mac_get_max_he_mcs_map(u16 mcs_map, int nss)
+{
+ switch ((mcs_map >> (2 * nss)) & 0x3) {
+ case IEEE80211_HE_MCS_SUPPORT_0_7: return BIT(8) - 1;
+ case IEEE80211_HE_MCS_SUPPORT_0_9: return BIT(10) - 1;
+ case IEEE80211_HE_MCS_SUPPORT_0_11: return BIT(12) - 1;
+ }
+ return 0;
+}
+
+static u16 ath12k_peer_assoc_h_he_limit(u16 tx_mcs_set,
+ const u16 *he_mcs_limit)
+{
+ int idx_limit;
+ int nss;
+ u16 mcs_map;
+ u16 mcs;
+
+ for (nss = 0; nss < NL80211_HE_NSS_MAX; nss++) {
+ mcs_map = ath12k_mac_get_max_he_mcs_map(tx_mcs_set, nss) &
+ he_mcs_limit[nss];
+
+ if (mcs_map)
+ idx_limit = fls(mcs_map) - 1;
+ else
+ idx_limit = -1;
+
+ switch (idx_limit) {
+ case 0 ... 7:
+ mcs = IEEE80211_HE_MCS_SUPPORT_0_7;
+ break;
+ case 8:
+ case 9:
+ mcs = IEEE80211_HE_MCS_SUPPORT_0_9;
+ break;
+ case 10:
+ case 11:
+ mcs = IEEE80211_HE_MCS_SUPPORT_0_11;
+ break;
+ default:
+ WARN_ON(1);
+ fallthrough;
+ case -1:
+ mcs = IEEE80211_HE_MCS_NOT_SUPPORTED;
+ break;
+ }
+
+ tx_mcs_set &= ~(0x3 << (nss * 2));
+ tx_mcs_set |= mcs << (nss * 2);
+ }
+
+ return tx_mcs_set;
+}
+
+static bool
+ath12k_peer_assoc_h_he_masked(const u16 he_mcs_mask[NL80211_HE_NSS_MAX])
+{
+ int nss;
+
+ for (nss = 0; nss < NL80211_HE_NSS_MAX; nss++)
+ if (he_mcs_mask[nss])
+ return false;
+
+ return true;
+}
+
static void ath12k_peer_assoc_h_he(struct ath12k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ath12k_wmi_peer_assoc_arg *arg)
{
const struct ieee80211_sta_he_cap *he_cap = &sta->deflink.he_cap;
+ struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+ struct cfg80211_chan_def def;
int i;
u8 ampdu_factor, max_nss;
u8 rx_mcs_80 = IEEE80211_HE_MCS_NOT_SUPPORTED;
u8 rx_mcs_160 = IEEE80211_HE_MCS_NOT_SUPPORTED;
u16 mcs_160_map, mcs_80_map;
bool support_160;
- u16 v;
+ enum nl80211_band band;
+ u16 *he_mcs_mask;
+ u8 he_mcs;
+ u16 he_tx_mcs = 0, v = 0;
+ int he_nss, nss_idx;
+ bool user_rate_valid = true;
+
+ if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
+ return;
if (!he_cap->has_he)
return;
+ band = def.chan->band;
+ he_mcs_mask = arvif->bitrate_mask.control[band].he_mcs;
+
+ if (ath12k_peer_assoc_h_he_masked(he_mcs_mask))
+ return;
+
arg->he_flag = true;
support_160 = !!(he_cap->he_cap_elem.phy_cap_info[0] &
@@ -2247,25 +2369,47 @@ static void ath12k_peer_assoc_h_he(struc
if (he_cap->he_cap_elem.mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_TWT_REQ)
arg->twt_requester = true;
+ he_nss = ath12k_mac_max_he_nss(he_mcs_mask);
+
+ if (he_nss > sta->deflink.rx_nss) {
+ user_rate_valid = false;
+ for (nss_idx = sta->deflink.rx_nss - 1; nss_idx >= 0; nss_idx--) {
+ if (he_mcs_mask[nss_idx]) {
+ user_rate_valid = true;
+ break;
+ }
+ }
+ }
+
+ if (!user_rate_valid) {
+ ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
+ "Setting he range MCS value to peer supported nss:%d for peer %pM\n",
+ sta->deflink.rx_nss, sta->deflink.addr);
+ he_mcs_mask[sta->deflink.rx_nss - 1] = he_mcs_mask[he_nss - 1];
+ }
+
switch (sta->deflink.bandwidth) {
case IEEE80211_STA_RX_BW_160:
if (he_cap->he_cap_elem.phy_cap_info[0] &
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G) {
- v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80p80);
+ v = ath12k_peer_assoc_h_he_limit(v, he_mcs_mask);
arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80_80] = v;
v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80p80);
arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80_80] = v;
arg->peer_he_mcs_count++;
+ he_tx_mcs = v;
}
v = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160);
arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_160] = v;
- v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_160);
+ v = ath12k_peer_assoc_h_he_limit(v, he_mcs_mask);
arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_160] = v;
arg->peer_he_mcs_count++;
+ if (!he_tx_mcs)
+ he_tx_mcs = v;
fallthrough;
default:
@@ -2273,11 +2417,34 @@ static void ath12k_peer_assoc_h_he(struc
arg->peer_he_rx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80] = v;
v = le16_to_cpu(he_cap->he_mcs_nss_supp.tx_mcs_80);
+ v = ath12k_peer_assoc_h_he_limit(v, he_mcs_mask);
arg->peer_he_tx_mcs_set[WMI_HECAP_TXRX_MCS_NSS_IDX_80] = v;
arg->peer_he_mcs_count++;
+ if (!he_tx_mcs)
+ he_tx_mcs = v;
break;
}
+
+ /* Calculate peer NSS capability from HE capabilities if STA
+ * supports HE.
+ */
+ for (i = 0, max_nss = 0, he_mcs = 0; i < NL80211_HE_NSS_MAX; i++) {
+ he_mcs = he_tx_mcs >> (2 * i) & 3;
+
+ /* In case of fixed rates, MCS Range in he_tx_mcs might have
+ * unsupported range, with he_mcs_mask set, so check either of them
+ * to find nss.
+ */
+ if (he_mcs != IEEE80211_HE_MCS_NOT_SUPPORTED ||
+ he_mcs_mask[i])
+ max_nss = i + 1;
+ }
+ arg->peer_nss = min(sta->deflink.rx_nss, max_nss);
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
+ "mac he peer %pM nss %d mcs cnt %d\n",
+ sta->deflink.addr, arg->peer_nss, arg->peer_he_mcs_count);
}
static void ath12k_peer_assoc_h_he_6ghz(struct ath12k *ar,
@@ -2586,6 +2753,7 @@ static void ath12k_peer_assoc_h_phymode(
enum nl80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
+ const u16 *he_mcs_mask;
enum wmi_phy_mode phymode = MODE_UNKNOWN;
if (WARN_ON(ath12k_mac_vif_chan(vif, &def)))
@@ -2594,6 +2762,7 @@ static void ath12k_peer_assoc_h_phymode(
band = def.chan->band;
ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
+ he_mcs_mask = arvif->bitrate_mask.control[band].he_mcs;
switch (band) {
case NL80211_BAND_2GHZ:
@@ -2602,7 +2771,8 @@ static void ath12k_peer_assoc_h_phymode(
phymode = MODE_11BE_EHT40_2G;
else
phymode = MODE_11BE_EHT20_2G;
- } else if (sta->deflink.he_cap.has_he) {
+ } else if (sta->deflink.he_cap.has_he &&
+ !ath12k_peer_assoc_h_he_masked(he_mcs_mask)) {
if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_80)
phymode = MODE_11AX_HE80_2G;
else if (sta->deflink.bandwidth == IEEE80211_STA_RX_BW_40)
@@ -2632,7 +2802,8 @@ static void ath12k_peer_assoc_h_phymode(
/* Check EHT first */
if (sta->deflink.eht_cap.has_eht) {
phymode = ath12k_mac_get_phymode_eht(ar, sta);
- } else if (sta->deflink.he_cap.has_he) {
+ } else if (sta->deflink.he_cap.has_he &&
+ !ath12k_peer_assoc_h_he_masked(he_mcs_mask)) {
phymode = ath12k_mac_get_phymode_he(ar, sta);
} else if (sta->deflink.vht_cap.vht_supported &&
!ath12k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
@@ -4311,6 +4482,20 @@ ath12k_mac_bitrate_mask_num_vht_rates(st
}
static int
+ath12k_mac_bitrate_mask_num_he_rates(struct ath12k *ar,
+ enum nl80211_band band,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ int num_rates = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].he_mcs); i++)
+ num_rates += hweight16(mask->control[band].he_mcs[i]);
+
+ return num_rates;
+}
+
+static int
ath12k_mac_set_peer_vht_fixed_rate(struct ath12k_vif *arvif,
struct ieee80211_sta *sta,
const struct cfg80211_bitrate_mask *mask,
@@ -4356,6 +4541,57 @@ ath12k_mac_set_peer_vht_fixed_rate(struc
return ret;
}
+static int
+ath12k_mac_set_peer_he_fixed_rate(struct ath12k_vif *arvif,
+ struct ieee80211_sta *sta,
+ const struct cfg80211_bitrate_mask *mask,
+ enum nl80211_band band)
+{
+ struct ath12k *ar = arvif->ar;
+ u8 he_rate, nss;
+ u32 rate_code;
+ int ret, i;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ nss = 0;
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].he_mcs); i++) {
+ if (hweight16(mask->control[band].he_mcs[i]) == 1) {
+ nss = i + 1;
+ he_rate = ffs(mask->control[band].he_mcs[i]) - 1;
+ }
+ }
+
+ if (!nss) {
+ ath12k_warn(ar->ab, "No single HE Fixed rate found to set for %pM",
+ sta->deflink.addr);
+ return -EINVAL;
+ }
+
+ /* Avoid updating invalid nss as fixed rate*/
+ if (nss > sta->deflink.rx_nss)
+ return -EINVAL;
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
+ "Setting Fixed HE Rate for peer %pM. Device will not switch to any other selected rates",
+ sta->deflink.addr);
+
+ rate_code = ATH12K_HW_RATE_CODE(he_rate, nss - 1,
+ WMI_RATE_PREAMBLE_HE);
+
+ ret = ath12k_wmi_set_peer_param(ar, sta->deflink.addr,
+ arvif->vdev_id,
+ WMI_PEER_PARAM_FIXED_RATE,
+ rate_code);
+ if (ret)
+ ath12k_warn(ar->ab,
+ "failed to update STA %pM Fixed Rate %d: %d\n",
+ sta->deflink.addr, rate_code, ret);
+
+ return ret;
+}
+
static int ath12k_station_assoc(struct ath12k *ar,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
@@ -4367,7 +4603,7 @@ static int ath12k_station_assoc(struct a
struct cfg80211_chan_def def;
enum nl80211_band band;
struct cfg80211_bitrate_mask *mask;
- u8 num_vht_rates;
+ u8 num_vht_rates, num_he_rates;
lockdep_assert_held(&ar->conf_mutex);
@@ -4398,15 +4634,19 @@ static int ath12k_station_assoc(struct a
}
num_vht_rates = ath12k_mac_bitrate_mask_num_vht_rates(ar, band, mask);
+ num_he_rates = ath12k_mac_bitrate_mask_num_he_rates(ar, band, mask);
- /* If single VHT rate is configured (by set_bitrate_mask()),
- * peer_assoc will disable VHT. This is now enabled by a peer specific
+ /* If single VHT/HE rate is configured (by set_bitrate_mask()),
+ * peer_assoc will disable VHT/HE. This is now enabled by a peer specific
* fixed param.
* Note that all other rates and NSS will be disabled for this peer.
*/
if (sta->deflink.vht_cap.vht_supported && num_vht_rates == 1) {
- ret = ath12k_mac_set_peer_vht_fixed_rate(arvif, sta, mask,
- band);
+ ret = ath12k_mac_set_peer_vht_fixed_rate(arvif, sta, mask, band);
+ if (ret)
+ return ret;
+ } else if (sta->deflink.he_cap.has_he && num_he_rates == 1) {
+ ret = ath12k_mac_set_peer_he_fixed_rate(arvif, sta, mask, band);
if (ret)
return ret;
}
@@ -4480,8 +4720,9 @@ static void ath12k_sta_rc_update_wk(stru
enum nl80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
- u32 changed, bw, nss, smps, bw_prev;
- int err, num_vht_rates;
+ const u16 *he_mcs_mask;
+ u32 changed, bw, nss, mac_nss, smps, bw_prev;
+ int err, num_vht_rates, num_he_rates;
const struct cfg80211_bitrate_mask *mask;
struct ath12k_wmi_peer_assoc_arg peer_arg;
enum wmi_phy_mode peer_phymode;
@@ -4497,6 +4738,7 @@ static void ath12k_sta_rc_update_wk(stru
band = def.chan->band;
ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;
+ he_mcs_mask = arvif->bitrate_mask.control[band].he_mcs;
spin_lock_bh(&ar->data_lock);
@@ -4513,8 +4755,10 @@ static void ath12k_sta_rc_update_wk(stru
mutex_lock(&ar->conf_mutex);
nss = max_t(u32, 1, nss);
- nss = min(nss, max(ath12k_mac_max_ht_nss(ht_mcs_mask),
- ath12k_mac_max_vht_nss(vht_mcs_mask)));
+ mac_nss = max3(ath12k_mac_max_ht_nss(ht_mcs_mask),
+ ath12k_mac_max_vht_nss(vht_mcs_mask),
+ ath12k_mac_max_he_nss(he_mcs_mask));
+ nss = min(nss, mac_nss);
if (changed & IEEE80211_RC_BW_CHANGED) {
ath12k_peer_assoc_h_phymode(ar, arvif->vif, sta, &peer_arg);
@@ -4592,6 +4836,8 @@ static void ath12k_sta_rc_update_wk(stru
mask = &arvif->bitrate_mask;
num_vht_rates = ath12k_mac_bitrate_mask_num_vht_rates(ar, band,
mask);
+ num_he_rates = ath12k_mac_bitrate_mask_num_he_rates(ar, band,
+ mask);
/* Peer_assoc_prepare will reject vht rates in
* bitrate_mask if its not available in range format and
@@ -4607,11 +4853,24 @@ static void ath12k_sta_rc_update_wk(stru
if (sta->deflink.vht_cap.vht_supported && num_vht_rates == 1) {
ath12k_mac_set_peer_vht_fixed_rate(arvif, sta, mask,
band);
+ } else if (sta->deflink.he_cap.has_he && num_he_rates == 1) {
+ ath12k_mac_set_peer_he_fixed_rate(arvif, sta, mask, band);
} else {
- /* If the peer is non-VHT or no fixed VHT rate
+ /* If the peer is non-VHT/HE or no fixed VHT/HE rate
* is provided in the new bitrate mask we set the
- * other rates using peer_assoc command.
+ * other rates using peer_assoc command. Also clear
+ * the peer fixed rate settings as it has higher proprity
+ * than peer assoc
*/
+
+ err = ath12k_wmi_set_peer_param(ar, sta->deflink.addr,
+ arvif->vdev_id,
+ WMI_PEER_PARAM_FIXED_RATE,
+ WMI_FIXED_RATE_NONE);
+ if (err)
+ ath12k_warn(ar->ab,
+ "failed to disable peer fixed rate for STA %pM ret %d\n",
+ sta->deflink.addr, err);
ath12k_peer_assoc_prepare(ar, arvif->vif, sta,
&peer_arg, true);
@@ -7059,10 +7318,13 @@ static int ath12k_mac_op_add_interface(s
for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) {
arvif->bitrate_mask.control[i].legacy = 0xffffffff;
+ arvif->bitrate_mask.control[i].gi = NL80211_TXRATE_FORCE_SGI;
memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff,
sizeof(arvif->bitrate_mask.control[i].ht_mcs));
memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff,
sizeof(arvif->bitrate_mask.control[i].vht_mcs));
+ memset(arvif->bitrate_mask.control[i].he_mcs, 0xff,
+ sizeof(arvif->bitrate_mask.control[i].he_mcs));
}
/* Allocate Default Queue now and reassign during actual vdev create */
@@ -8223,19 +8485,40 @@ ath12k_mac_has_single_legacy_rate(struct
if (ath12k_mac_bitrate_mask_num_vht_rates(ar, band, mask))
return false;
+ if (ath12k_mac_bitrate_mask_num_he_rates(ar, band, mask))
+ return false;
+
return num_rates == 1;
}
+static __le16
+ath12k_mac_get_tx_mcs_map(const struct ieee80211_sta_he_cap *he_cap)
+{
+ if (he_cap->he_cap_elem.phy_cap_info[0] &
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
+ return he_cap->he_mcs_nss_supp.tx_mcs_80p80;
+
+ if (he_cap->he_cap_elem.phy_cap_info[0] &
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
+ return he_cap->he_mcs_nss_supp.tx_mcs_160;
+
+ return he_cap->he_mcs_nss_supp.tx_mcs_80;
+}
+
static bool
ath12k_mac_bitrate_mask_get_single_nss(struct ath12k *ar,
+ struct ieee80211_vif *vif,
enum nl80211_band band,
const struct cfg80211_bitrate_mask *mask,
int *nss)
{
struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
+ const struct ieee80211_sta_he_cap *he_cap;
+ u16 he_mcs_map = 0;
u8 ht_nss_mask = 0;
u8 vht_nss_mask = 0;
+ u8 he_nss_mask = 0;
int i;
/* No need to consider legacy here. Basic rates are always present
@@ -8262,7 +8545,24 @@ ath12k_mac_bitrate_mask_get_single_nss(s
return false;
}
- if (ht_nss_mask != vht_nss_mask)
+ he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
+ if (!he_cap)
+ return false;
+
+ he_mcs_map = le16_to_cpu(ath12k_mac_get_tx_mcs_map(he_cap));
+
+ for (i = 0; i < ARRAY_SIZE(mask->control[band].he_mcs); i++) {
+ if (mask->control[band].he_mcs[i] == 0)
+ continue;
+
+ if (mask->control[band].he_mcs[i] ==
+ ath12k_mac_get_max_he_mcs_map(he_mcs_map, i))
+ he_nss_mask |= BIT(i);
+ else
+ return false;
+ }
+
+ if (ht_nss_mask != vht_nss_mask || ht_nss_mask != he_nss_mask)
return false;
if (ht_nss_mask == 0)
@@ -8309,54 +8609,158 @@ ath12k_mac_get_single_legacy_rate(struct
return 0;
}
-static int ath12k_mac_set_fixed_rate_params(struct ath12k_vif *arvif,
- u32 rate, u8 nss, u8 sgi, u8 ldpc)
+static int
+ath12k_mac_set_fixed_rate_gi_ltf(struct ath12k_vif *arvif, u8 he_gi, u8 he_ltf)
{
struct ath12k *ar = arvif->ar;
- u32 vdev_param;
int ret;
- lockdep_assert_held(&ar->conf_mutex);
+ /* 0.8 = 0, 1.6 = 2 and 3.2 = 3. */
+ if (he_gi && he_gi != 0xFF)
+ he_gi += 1;
- ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02x nss %u sgi %u\n",
- arvif->vdev_id, rate, nss, sgi);
+ ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
+ WMI_VDEV_PARAM_SGI, he_gi);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to set HE GI:%d, error:%d\n",
+ he_gi, ret);
+ return ret;
+ }
+ /* start from 1 */
+ if (he_ltf != 0xFF)
+ he_ltf += 1;
- vdev_param = WMI_VDEV_PARAM_FIXED_RATE;
ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
- vdev_param, rate);
+ WMI_VDEV_PARAM_HE_LTF, he_ltf);
if (ret) {
- ath12k_warn(ar->ab, "failed to set fixed rate param 0x%02x: %d\n",
- rate, ret);
+ ath12k_warn(ar->ab, "failed to set HE LTF:%d, error:%d\n",
+ he_ltf, ret);
return ret;
}
+ return 0;
+}
+
+static int
+ath12k_mac_set_auto_rate_gi_ltf(struct ath12k_vif *arvif, u16 he_gi, u8 he_ltf)
+{
+ struct ath12k *ar = arvif->ar;
+ int ret;
+ u32 he_ar_gi_ltf;
+
+ if (he_gi != 0xFF) {
+ switch (he_gi) {
+ case NL80211_RATE_INFO_HE_GI_0_8:
+ he_gi = WMI_AUTORATE_800NS_GI;
+ break;
+ case NL80211_RATE_INFO_HE_GI_1_6:
+ he_gi = WMI_AUTORATE_1600NS_GI;
+ break;
+ case NL80211_RATE_INFO_HE_GI_3_2:
+ he_gi = WMI_AUTORATE_3200NS_GI;
+ break;
+ default:
+ ath12k_warn(ar->ab, "Invalid GI\n");
+ return -EINVAL;
+ }
+ }
+
+ if (he_ltf != 0xFF) {
+ switch (he_ltf) {
+ case NL80211_RATE_INFO_HE_1XLTF:
+ he_ltf = WMI_HE_AUTORATE_LTF_1X;
+ break;
+ case NL80211_RATE_INFO_HE_2XLTF:
+ he_ltf = WMI_HE_AUTORATE_LTF_2X;
+ break;
+ case NL80211_RATE_INFO_HE_4XLTF:
+ he_ltf = WMI_HE_AUTORATE_LTF_4X;
+ break;
+ default:
+ ath12k_warn(ar->ab, "Invalid LTF\n");
+ return -EINVAL;
+ }
+ }
+
+ he_ar_gi_ltf = he_gi | he_ltf;
- vdev_param = WMI_VDEV_PARAM_NSS;
ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
- vdev_param, nss);
+ WMI_VDEV_PARAM_AUTORATE_MISC_CFG,
+ he_ar_gi_ltf);
if (ret) {
- ath12k_warn(ar->ab, "failed to set nss param %d: %d\n",
- nss, ret);
+ ath12k_warn(ar->ab,
+ "failed to set HE autorate GI:%u, LTF:%u params, error:%d\n",
+ he_gi, he_ltf, ret);
return ret;
}
- vdev_param = WMI_VDEV_PARAM_SGI;
+ return 0;
+}
+
+static int ath12k_mac_set_rate_params(struct ath12k_vif *arvif,
+ u32 rate, u8 nss, u8 sgi, u8 ldpc,
+ u8 he_gi, u8 he_ltf, bool he_fixed_rate)
+{
+ struct ath12k *ar = arvif->ar;
+ u32 vdev_param;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
+ "mac set rate params vdev %i rate 0x%02x nss 0x%02x sgi 0x%02x ldpc 0x%02x\n",
+ arvif->vdev_id, rate, nss, sgi, ldpc);
+
+ ath12k_dbg(ar->ab, ATH12K_DBG_MAC,
+ "he_gi 0x%02x he_ltf 0x%02x he_fixed_rate %d\n", he_gi,
+ he_ltf, he_fixed_rate);
+
+ if (!arvif->vif->bss_conf.he_support) {
+ vdev_param = WMI_VDEV_PARAM_FIXED_RATE;
+ ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
+ vdev_param, rate);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to set fixed rate param 0x%02x: %d\n",
+ rate, ret);
+ return ret;
+ }
+ }
+
+ vdev_param = WMI_VDEV_PARAM_NSS;
+
ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
- vdev_param, sgi);
+ vdev_param, nss);
if (ret) {
- ath12k_warn(ar->ab, "failed to set sgi param %d: %d\n",
- sgi, ret);
+ ath12k_warn(ar->ab, "failed to set nss param %d: %d\n",
+ nss, ret);
return ret;
}
- vdev_param = WMI_VDEV_PARAM_LDPC;
ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
- vdev_param, ldpc);
+ WMI_VDEV_PARAM_LDPC, ldpc);
if (ret) {
ath12k_warn(ar->ab, "failed to set ldpc param %d: %d\n",
ldpc, ret);
return ret;
}
+ if (arvif->vif->bss_conf.he_support) {
+ if (he_fixed_rate)
+ ret = ath12k_mac_set_fixed_rate_gi_ltf(arvif, he_gi, he_ltf);
+ else
+ ret = ath12k_mac_set_auto_rate_gi_ltf(arvif, he_gi, he_ltf);
+ if (ret)
+ return ret;
+ } else {
+ vdev_param = WMI_VDEV_PARAM_SGI;
+ ret = ath12k_wmi_vdev_set_param_cmd(ar, arvif->vdev_id,
+ vdev_param, sgi);
+ if (ret) {
+ ath12k_warn(ar->ab, "failed to set sgi param %d: %d\n",
+ sgi, ret);
+ return ret;
+ }
+ }
+
return 0;
}
@@ -8385,6 +8789,31 @@ ath12k_mac_vht_mcs_range_present(struct
return true;
}
+static bool
+ath12k_mac_he_mcs_range_present(struct ath12k *ar,
+ enum nl80211_band band,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ int i;
+ u16 he_mcs;
+
+ for (i = 0; i < NL80211_HE_NSS_MAX; i++) {
+ he_mcs = mask->control[band].he_mcs[i];
+
+ switch (he_mcs) {
+ case 0:
+ case BIT(8) - 1:
+ case BIT(10) - 1:
+ case BIT(12) - 1:
+ break;
+ default:
+ return false;
+ }
+ }
+
+ return true;
+}
+
static void ath12k_mac_set_bitrate_mask_iter(void *data,
struct ieee80211_sta *sta)
{
@@ -8424,6 +8853,54 @@ static void ath12k_mac_disable_peer_fixe
}
static int
+ath12k_mac_validate_vht_he_fixed_rate_settings(struct ath12k *ar, enum nl80211_band band,
+ const struct cfg80211_bitrate_mask *mask)
+{
+ bool he_fixed_rate = false, vht_fixed_rate = false;
+ struct ath12k_peer *peer;
+ const u16 *vht_mcs_mask, *he_mcs_mask;
+ u8 vht_nss, he_nss;
+ int ret = 0;
+
+ vht_mcs_mask = mask->control[band].vht_mcs;
+ he_mcs_mask = mask->control[band].he_mcs;
+
+ if (ath12k_mac_bitrate_mask_num_vht_rates(ar, band, mask) == 1)
+ vht_fixed_rate = true;
+
+ if (ath12k_mac_bitrate_mask_num_he_rates(ar, band, mask) == 1)
+ he_fixed_rate = true;
+
+ if (!vht_fixed_rate && !he_fixed_rate)
+ return 0;
+
+ vht_nss = ath12k_mac_max_vht_nss(vht_mcs_mask);
+ he_nss = ath12k_mac_max_he_nss(he_mcs_mask);
+
+ rcu_read_lock();
+ spin_lock_bh(&ar->ab->base_lock);
+ list_for_each_entry(peer, &ar->ab->peers, list) {
+ if (peer->sta) {
+ if (vht_fixed_rate &&
+ (!peer->sta->deflink.vht_cap.vht_supported ||
+ peer->sta->deflink.rx_nss < vht_nss)) {
+ ret = -EINVAL;
+ goto exit;
+ }
+ if (he_fixed_rate && (!peer->sta->deflink.he_cap.has_he ||
+ peer->sta->deflink.rx_nss < he_nss)) {
+ ret = -EINVAL;
+ goto exit;
+ }
+ }
+ }
+exit:
+ spin_unlock_bh(&ar->ab->base_lock);
+ rcu_read_unlock();
+ return ret;
+}
+
+static int
ath12k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
const struct cfg80211_bitrate_mask *mask)
@@ -8434,13 +8911,17 @@ ath12k_mac_op_set_bitrate_mask(struct ie
enum nl80211_band band;
const u8 *ht_mcs_mask;
const u16 *vht_mcs_mask;
+ const u16 *he_mcs_mask;
+ u8 he_ltf = 0;
+ u8 he_gi = 0;
u32 rate;
- u8 nss;
+ u8 nss, mac_nss;
u8 sgi;
u8 ldpc;
int single_nss;
int ret;
int num_rates;
+ bool he_fixed_rate = false;
if (ath12k_mac_vif_chan(vif, &def))
return -EPERM;
@@ -8448,6 +8929,7 @@ ath12k_mac_op_set_bitrate_mask(struct ie
band = def.chan->band;
ht_mcs_mask = mask->control[band].ht_mcs;
vht_mcs_mask = mask->control[band].vht_mcs;
+ he_mcs_mask = mask->control[band].he_mcs;
ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
sgi = mask->control[band].gi;
@@ -8456,6 +8938,9 @@ ath12k_mac_op_set_bitrate_mask(struct ie
goto out;
}
+ he_gi = mask->control[band].he_gi;
+ he_ltf = mask->control[band].he_ltf;
+
/* mac80211 doesn't support sending a fixed HT/VHT MCS alone, rather it
* requires passing at least one of used basic rates along with them.
* Fixed rate setting across different preambles(legacy, HT, VHT) is
@@ -8475,15 +8960,27 @@ ath12k_mac_op_set_bitrate_mask(struct ie
ieee80211_iterate_stations_mtx(hw,
ath12k_mac_disable_peer_fixed_rate,
arvif);
- } else if (ath12k_mac_bitrate_mask_get_single_nss(ar, band, mask,
+ } else if (ath12k_mac_bitrate_mask_get_single_nss(ar, vif, band, mask,
&single_nss)) {
rate = WMI_FIXED_RATE_NONE;
nss = single_nss;
+ mutex_lock(&ar->conf_mutex);
+ arvif->bitrate_mask = *mask;
+ ieee80211_iterate_stations_mtx(hw,
+ ath12k_mac_set_bitrate_mask_iter,
+ arvif);
+ mutex_unlock(&ar->conf_mutex);
} else {
rate = WMI_FIXED_RATE_NONE;
- nss = min_t(u32, ar->num_tx_chains,
- max(ath12k_mac_max_ht_nss(ht_mcs_mask),
- ath12k_mac_max_vht_nss(vht_mcs_mask)));
+
+ if (!ath12k_mac_validate_vht_he_fixed_rate_settings(ar, band, mask))
+ ath12k_warn(ar->ab,
+ "could not update fixed rate settings to all peers due to mcs/nss incompatiblity\n");
+
+ mac_nss = max3(ath12k_mac_max_ht_nss(ht_mcs_mask),
+ ath12k_mac_max_vht_nss(vht_mcs_mask),
+ ath12k_mac_max_he_nss(he_mcs_mask));
+ nss = min_t(u32, ar->num_tx_chains, mac_nss);
/* If multiple rates across different preambles are given
* we can reconfigure this info with all peers using PEER_ASSOC
@@ -8519,12 +9016,22 @@ ath12k_mac_op_set_bitrate_mask(struct ie
goto out;
}
+ num_rates = ath12k_mac_bitrate_mask_num_he_rates(ar, band, mask);
+ if (num_rates == 1)
+ he_fixed_rate = true;
+
+ if (!ath12k_mac_he_mcs_range_present(ar, band, mask) &&
+ num_rates > 1) {
+ ath12k_warn(ar->ab,
+ "Setting more than one HE MCS Value in bitrate mask not supported\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&ar->conf_mutex);
ieee80211_iterate_stations_mtx(hw,
ath12k_mac_disable_peer_fixed_rate,
arvif);
- mutex_lock(&ar->conf_mutex);
-
arvif->bitrate_mask = *mask;
ieee80211_iterate_stations_mtx(hw,
ath12k_mac_set_bitrate_mask_iter,
@@ -8535,9 +9042,10 @@ ath12k_mac_op_set_bitrate_mask(struct ie
mutex_lock(&ar->conf_mutex);
- ret = ath12k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
+ ret = ath12k_mac_set_rate_params(arvif, rate, nss, sgi, ldpc, he_gi,
+ he_ltf, he_fixed_rate);
if (ret) {
- ath12k_warn(ar->ab, "failed to set fixed rate params on vdev %i: %d\n",
+ ath12k_warn(ar->ab, "failed to set rate params on vdev %i: %d\n",
arvif->vdev_id, ret);
}
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -220,6 +220,22 @@ enum WMI_HOST_WLAN_BAND {
WMI_HOST_WLAN_2G_5G_CAP = 3,
};
+/* Parameters used for WMI_VDEV_PARAM_AUTORATE_MISC_CFG command.
+ * Used only for HE auto rate mode.
+ */
+enum {
+ /* HE LTF related configuration */
+ WMI_HE_AUTORATE_LTF_1X = BIT(0),
+ WMI_HE_AUTORATE_LTF_2X = BIT(1),
+ WMI_HE_AUTORATE_LTF_4X = BIT(2),
+
+ /* HE GI related configuration */
+ WMI_AUTORATE_400NS_GI = BIT(8),
+ WMI_AUTORATE_800NS_GI = BIT(9),
+ WMI_AUTORATE_1600NS_GI = BIT(10),
+ WMI_AUTORATE_3200NS_GI = BIT(11),
+};
+
enum wmi_cmd_group {
/* 0 to 2 are reserved */
WMI_GRP_START = 0x3,
@@ -1132,7 +1148,9 @@ enum wmi_tlv_vdev_param {
WMI_VDEV_PARAM_HE_RANGE_EXT,
WMI_VDEV_PARAM_ENABLE_BCAST_PROBE_RESPONSE,
WMI_VDEV_PARAM_FILS_MAX_CHANNEL_GUARD_TIME,
+ WMI_VDEV_PARAM_HE_LTF = 0x74,
WMI_VDEV_PARAM_BA_MODE = 0x7e,
+ WMI_VDEV_PARAM_AUTORATE_MISC_CFG = 0x80,
WMI_VDEV_PARAM_SET_HE_SOUNDING_MODE = 0x87,
WMI_VDEV_PARAM_6GHZ_PARAMS = 0x99,
WMI_VDEV_PARAM_PROTOTYPE = 0x8000,
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