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Tue, 26 Mar 2024 17:37:39 GMT Received: from [10.110.10.42] (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 26 Mar 2024 10:37:39 -0700 Message-ID: Date: Tue, 26 Mar 2024 10:37:38 -0700 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6/6] wifi: ath12k: support SMPS configuration for 6 GHz Content-Language: en-US To: Baochen Qiang , CC: References: <20240325212304.28241-1-quic_pradeepc@quicinc.com> <20240325212304.28241-7-quic_pradeepc@quicinc.com> <2c7739bd-09d4-4e0d-ab8c-32e8d2d030b8@quicinc.com> From: Pradeep Kumar Chitrapu In-Reply-To: <2c7739bd-09d4-4e0d-ab8c-32e8d2d030b8@quicinc.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Xplc4_J9yMlU6BoknbjADriau_BoHrdP X-Proofpoint-ORIG-GUID: Xplc4_J9yMlU6BoknbjADriau_BoHrdP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-26_07,2024-03-21_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 adultscore=0 suspectscore=0 mlxscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 phishscore=0 mlxlogscore=999 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2403210001 definitions=main-2403260125 On 3/25/2024 8:38 PM, Baochen Qiang wrote: > > > On 3/26/2024 5:23 AM, Pradeep Kumar Chitrapu wrote: >> Parse SMPS configuration from IEs and configure. Without this, >> SMPS is not enabled for 6 GHz band. >> >> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 >> >> Signed-off-by: Pradeep Kumar Chitrapu >> --- >>   drivers/net/wireless/ath/ath12k/mac.c | 25 +++++++++++++++++-------- >>   1 file changed, 17 insertions(+), 8 deletions(-) >> >> diff --git a/drivers/net/wireless/ath/ath12k/mac.c >> b/drivers/net/wireless/ath/ath12k/mac.c >> index b4114dd22bf0..433b8be74997 100644 >> --- a/drivers/net/wireless/ath/ath12k/mac.c >> +++ b/drivers/net/wireless/ath/ath12k/mac.c >> @@ -1964,12 +1964,17 @@ static void ath12k_peer_assoc_h_he_6ghz(struct >> ath12k *ar, >>   } >>   static inline int ath12k_get_smps_from_capa(const struct >> ieee80211_sta_ht_cap *ht_cap, >> +                        const struct ieee80211_he_6ghz_capa >> *he_6ghz_capa, >>                           int *smps) >>   { >> -    if (!ht_cap->ht_supported) >> +    if (!ht_cap->ht_supported && !he_6ghz_capa->capa) >>           return -EOPNOTSUPP; >> -    *smps = u16_get_bits(ht_cap->cap, IEEE80211_HT_CAP_SM_PS); >> +    if (ht_cap->ht_supported) >> +        *smps = u16_get_bits(ht_cap->cap, IEEE80211_HT_CAP_SM_PS); >> +    else >> +        *smps = le16_get_bits(he_6ghz_capa->capa, >> +                      IEEE80211_HE_6GHZ_CAP_SM_PS); >>       if (*smps >= ARRAY_SIZE(ath12k_smps_map)) >>           return -EINVAL; >> @@ -1980,10 +1985,11 @@ static inline int >> ath12k_get_smps_from_capa(const struct ieee80211_sta_ht_cap *h >>   static void ath12k_peer_assoc_h_smps(struct ieee80211_sta *sta, >>                        struct ath12k_wmi_peer_assoc_arg *arg) >>   { >> +    const struct ieee80211_he_6ghz_capa *he_6ghz_capa = >> &sta->deflink.he_6ghz_capa; >>       const struct ieee80211_sta_ht_cap *ht_cap = &sta->deflink.ht_cap; >>       int smps; >> -    if (ath12k_get_smps_from_capa(ht_cap, &smps)) >> +    if (ath12k_get_smps_from_capa(ht_cap, he_6ghz_capa, &smps)) >>           return; >>       switch (smps) { >> @@ -2457,11 +2463,12 @@ static void ath12k_peer_assoc_prepare(struct >> ath12k *ar, >>   static int ath12k_setup_peer_smps(struct ath12k *ar, struct >> ath12k_vif *arvif, >>                     const u8 *addr, >> -                  const struct ieee80211_sta_ht_cap *ht_cap) >> +                  const struct ieee80211_sta_ht_cap *ht_cap, >> +                  const struct ieee80211_he_6ghz_capa *he_6ghz_capa) >>   { >>       int smps, ret = 0; >> -    ret = ath12k_get_smps_from_capa(ht_cap, &smps); >> +    ret = ath12k_get_smps_from_capa(ht_cap, he_6ghz_capa, &smps); >>       if (ret < 0) >>           return ret; >> @@ -2514,7 +2521,8 @@ static void ath12k_bss_assoc(struct ath12k *ar, >>       } >>       ret = ath12k_setup_peer_smps(ar, arvif, bss_conf->bssid, >> -                     &ap_sta->deflink.ht_cap); >> +                     &ap_sta->deflink.ht_cap, >> +                     &ap_sta->deflink.he_6ghz_capa); >>       if (ret) { >>           ath12k_warn(ar->ab, "failed to setup peer SMPS for vdev %d: >> %d\n", >>                   arvif->vdev_id, ret); >> @@ -3677,7 +3685,8 @@ static int ath12k_station_assoc(struct ath12k *ar, >>           return 0; >>       ret = ath12k_setup_peer_smps(ar, arvif, sta->addr, >> -                     &sta->deflink.ht_cap); >> +                     &sta->deflink.ht_cap, >> +                     &sta->deflink.he_6ghz_capa); >>       if (ret) { >>           ath12k_warn(ar->ab, "failed to setup peer SMPS for vdev %d: >> %d\n", >>                   arvif->vdev_id, ret); >> @@ -8104,7 +8113,7 @@ static int ath12k_mac_hw_register(struct >> ath12k_hw *ah) >>        * for each band for a dual band capable radio. It will be >> tricky to >>        * handle it when the ht capability different for each band. >>        */ >> -    if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS) >> +    if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS || ar->supports_6ghz) > WCN7850 supports 6 GHz but it does not support feature > NL80211_FEATURE_DYNAMIC_SMPS. Enabling this for WCN7850 can lead to > MU-MIMO test failures. > >>           wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS; >>       wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID; Thanks Baochen will address this in next revision.. can you please let me know if WCN7850 firmware advertises any capability flag for this? If not, I am planning to use hw_params for differentiating feature support. I will further look and update in next revision. Thanks Pradeep