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Wed, 29 Jan 2025 15:53:08 GMT Received: from hu-rdevanat-blr.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 29 Jan 2025 07:53:06 -0800 From: Roopni Devanathan To: CC: , Roopni Devanathan Subject: [PATCH v4 2/5] wifi: cfg80211: Report per-radio RTS threshold to userspace Date: Wed, 29 Jan 2025 21:22:43 +0530 Message-ID: <20250129155246.155587-3-quic_rdevanat@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250129155246.155587-1-quic_rdevanat@quicinc.com> References: <20250129155246.155587-1-quic_rdevanat@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: NnasDb3u7zUFW0M0K4BOD001er46_wlS X-Proofpoint-ORIG-GUID: NnasDb3u7zUFW0M0K4BOD001er46_wlS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-29_03,2025-01-29_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxscore=0 mlxlogscore=999 clxscore=1015 suspectscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 impostorscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501290128 In case of multi-radio wiphys, with per-radio RTS threshold brought into use, RTS threshold for each radio in a wiphy can be recorded in wiphy parameter - wiphy_radio_cfg, as an array. Add a new attribute - NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD in nested parameter - NL80211_ATTR_WIPHY_RADIOS. When a request for getting RTS threshold for a particular radio is received, parse the radio id and get the required data. Add this data to the newly added nested attribute NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD. Add support to report this data to userspace. Signed-off-by: Roopni Devanathan --- include/uapi/linux/nl80211.h | 2 ++ net/wireless/nl80211.c | 7 ++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 5e7dca7c6083..17ed4e8bca33 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -8076,6 +8076,7 @@ enum nl80211_ap_settings_flags { * and contains attributes defined in &enum nl80211_if_combination_attrs. * @NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK: bitmask (u32) of antennas * connected to this radio. + * @NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD: RTS threshold (u32) of this radio. * * @__NL80211_WIPHY_RADIO_ATTR_LAST: Internal * @NL80211_WIPHY_RADIO_ATTR_MAX: Highest attribute @@ -8087,6 +8088,7 @@ enum nl80211_wiphy_radio_attrs { NL80211_WIPHY_RADIO_ATTR_FREQ_RANGE, NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION, NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK, + NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD, /* keep last */ __NL80211_WIPHY_RADIO_ATTR_LAST, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index be443a9bf6cd..b5ca793eb853 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -2439,6 +2439,7 @@ static int nl80211_put_mbssid_support(struct wiphy *wiphy, struct sk_buff *msg) static int nl80211_put_radio(struct wiphy *wiphy, struct sk_buff *msg, int idx) { const struct wiphy_radio *r = &wiphy->radio[idx]; + const struct wiphy_radio_cfg *rcfg = &wiphy->radio_cfg[idx]; struct nlattr *radio, *freq; int i; @@ -2449,6 +2450,9 @@ static int nl80211_put_radio(struct wiphy *wiphy, struct sk_buff *msg, int idx) if (nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_INDEX, idx)) goto nla_put_failure; + if (nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_RTS_THRESHOLD, rcfg->rts_threshold)) + goto nla_put_failure; + if (r->antenna_mask && nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_ANTENNA_MASK, r->antenna_mask)) @@ -3231,7 +3235,8 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, - NLM_F_MULTI, state); + NLM_F_MULTI, + state); if (ret < 0) { /* * If sending the wiphy data didn't fit (ENOBUFS