From patchwork Fri Sep 2 14:12:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602379 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 094A2C54EE9 for ; Fri, 2 Sep 2022 14:51:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236400AbiIBOvW (ORCPT ); Fri, 2 Sep 2022 10:51:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236920AbiIBOvD (ORCPT ); Fri, 2 Sep 2022 10:51:03 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37CD56C766 for ; Fri, 2 Sep 2022 07:13:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=7zn+0WJ3FL4EeKKdRxke2/V3u6t76iZ9uzyOiiO3zTY=; t=1662127986; x=1663337586; b=Hx3kXjtCvWaGAgVvKCY2IgiLoKipmYgrUqhkYA1CTQNrRNl qrGG4k3c3887eL90YnFmO2q+ThQ/2duWrZNAOpAafgrmDugTED/YHe+7m2/49s2XEYrAG/BCCPamj U6PdWGNRPLFy8KJMO6oScaS2ufCsLuD92rXiGMCMeaureshYR5rRceXKKkx67phLs+2/ckJ2pXA7c HJLXOaoUJ/4ZOJJn5lvElzFB+v5r1Cldr4s7B4tHEY5QWTTvRxD4WujGN0V/z4TR0t0TBXtqKzQ/w WOjTyU6790XpfITYHQi3+zKwRDIos3ixZXBbN/tbQwhZ2bobd6cny7DQu/EKtarQ==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pq-006Ch3-35; Fri, 02 Sep 2022 16:13:03 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 01/27] wifi: mac80211_hwsim: remove multicast workaround Date: Fri, 2 Sep 2022 16:12:33 +0200 Message-Id: <20220902161143.acba32891806.I9169fd552ff0c7320413af5fbd42c045edfb8faa@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Now that we have proper multicast TX in mac80211, there's no longer a need to fake something here. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 4fb8f68e5c3b..87176b205fc1 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1714,12 +1714,7 @@ mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data, if (!vif->valid_links) return &vif->bss_conf; - /* FIXME: handle multicast TX properly */ - if (is_multicast_ether_addr(hdr->addr1) || WARN_ON_ONCE(!sta)) { - unsigned int first_link = ffs(vif->valid_links) - 1; - - return rcu_dereference(vif->link_conf[first_link]); - } + WARN_ON(is_multicast_ether_addr(hdr->addr1)); if (WARN_ON_ONCE(!sta->valid_links)) return &vif->bss_conf; From patchwork Fri Sep 2 14:12:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602640 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF490ECAAD5 for ; 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Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pr-006Ch3-0f; Fri, 02 Sep 2022 16:13:03 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 02/27] wifi: mac80211: remove unused arg to ieee80211_chandef_eht_oper Date: Fri, 2 Sep 2022 16:12:34 +0200 Message-Id: <20220902161143.fa3aaf0f22db.I696d3190ec9f55028f9728c5589f76608860a0cf@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg We don't need the sdata argument, and it doesn't make any sense for a direct conversion from one value to another, so just remove the argument Signed-off-by: Johannes Berg --- net/mac80211/ieee80211_i.h | 3 +-- net/mac80211/mlme.c | 2 +- net/mac80211/util.c | 5 ++--- 3 files changed, 4 insertions(+), 6 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 9f358977a6b9..e902feecfad4 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2412,8 +2412,7 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, const struct ieee80211_vht_operation *oper, const struct ieee80211_ht_operation *htop, struct cfg80211_chan_def *chandef); -void ieee80211_chandef_eht_oper(struct ieee80211_sub_if_data *sdata, - const struct ieee80211_eht_operation *eht_oper, +void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper, bool support_160, bool support_320, struct cfg80211_chan_def *chandef); bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 13d075e6a318..ef192974949c 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -314,7 +314,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, if (eht_oper && (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { struct cfg80211_chan_def eht_chandef = *chandef; - ieee80211_chandef_eht_oper(sdata, eht_oper, + ieee80211_chandef_eht_oper(eht_oper, eht_chandef.width == NL80211_CHAN_WIDTH_160, false, &eht_chandef); diff --git a/net/mac80211/util.c b/net/mac80211/util.c index a292e63377c3..8b4c6b7abafa 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -3512,8 +3512,7 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, return true; } -void ieee80211_chandef_eht_oper(struct ieee80211_sub_if_data *sdata, - const struct ieee80211_eht_operation *eht_oper, +void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper, bool support_160, bool support_320, struct cfg80211_chan_def *chandef) { @@ -3689,7 +3688,7 @@ bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, support_320 = eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; - ieee80211_chandef_eht_oper(sdata, eht_oper, support_160, + ieee80211_chandef_eht_oper(eht_oper, support_160, support_320, &he_chandef); } From patchwork Fri Sep 2 14:12:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602641 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8C89C6FA85 for ; 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Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pr-006Ch3-1X; Fri, 02 Sep 2022 16:13:03 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 03/27] wifi: mac80211_hwsim: check STA magic in change_sta_links Date: Fri, 2 Sep 2022 16:12:35 +0200 Message-Id: <20220902161143.05f3fcf0d10f.Ie97f4d0615e75fbf1f73a41dc915503a93864aaa@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Just as an additional check that mac80211 isn't doing anything strange, add a check of the STA magic (which gets assigned when the station is added, and cleared when the station is removed). Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 87176b205fc1..48b1c39c1c05 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3021,6 +3021,8 @@ static int mac80211_hwsim_change_sta_links(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u16 old_links, u16 new_links) { + hwsim_check_sta_magic(sta); + return 0; } From patchwork Fri Sep 2 14:12:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602378 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94A9EC38145 for ; Fri, 2 Sep 2022 14:51:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237185AbiIBOvZ (ORCPT ); Fri, 2 Sep 2022 10:51:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58242 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235804AbiIBOvE (ORCPT ); Fri, 2 Sep 2022 10:51:04 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D51BF60511 for ; Fri, 2 Sep 2022 07:13:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=pFlH9QJ0Tu9QUkv6XtEFOcTLQO9K51Og7QklmrQ2Q5A=; t=1662127986; x=1663337586; b=jTLBe4UK9rtmgpErTI/5LTrgEk8Q5/X2lNRQJViNHQK5SZ/ mailEFfGwz5D8DPfB24gYIJ7bjnCitd2fVgB7i4L8v0VgDYbLH2F7L0bHRbZDQM36tEf0nzKtkNkC kGdNFDFkAcEKl7h89fooJbLYg83jPa05lJ/gKez3bHgyA2YzYrZD5m2QpBfmr1Ve1olawo8wAxn38 RBPRbdWQsn+KrRjIlEP87fCS69/9PrBrfdzeHwFEfMEcnP+PuV8b9xClCc2QQrqdTaP1RrfjYQl8m /z03qjKOHOusTSNvThdBgDvjjtCXEH+ZbbTnUGV5+P9BxJkkOH84V3Oed/4lfYOg==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pr-006Ch3-2Q; Fri, 02 Sep 2022 16:13:03 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 04/27] wifi: mac80211_hwsim: refactor RX a bit Date: Fri, 2 Sep 2022 16:12:36 +0200 Message-Id: <20220902161143.e729665195b5.I20f6e373f1f172014fdf3dcb5ad6709db45d9eb8@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Refactor some common RX functionality between the netlink and non-netlink paths, adding the special hwsim TLV (if compiled) also in the netlink path. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 48b1c39c1c05..70a72a03398a 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1561,6 +1561,19 @@ static void mac80211_hwsim_add_vendor_rtap(struct sk_buff *skb) #endif } +static void mac80211_hwsim_rx(struct mac80211_hwsim_data *data, + struct ieee80211_rx_status *rx_status, + struct sk_buff *skb) +{ + memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status)); + + mac80211_hwsim_add_vendor_rtap(skb); + + data->rx_pkts++; + data->rx_bytes += skb->len; + ieee80211_rx_irqsafe(data->hw, skb); +} + static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw, struct sk_buff *skb, struct ieee80211_channel *chan) @@ -1688,13 +1701,7 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw, rx_status.mactime = now + data2->tsf_offset; - memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status)); - - mac80211_hwsim_add_vendor_rtap(nskb); - - data2->rx_pkts++; - data2->rx_bytes += nskb->len; - ieee80211_rx_irqsafe(data2->hw, nskb); + mac80211_hwsim_rx(data2, &rx_status, nskb); } spin_unlock(&hwsim_radio_lock); @@ -4907,10 +4914,7 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, ieee80211_is_probe_resp(hdr->frame_control)) rx_status.boottime_ns = ktime_get_boottime_ns(); - memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); - data2->rx_pkts++; - data2->rx_bytes += skb->len; - ieee80211_rx_irqsafe(data2->hw, skb); + mac80211_hwsim_rx(data2, &rx_status, skb); return 0; err: From patchwork Fri Sep 2 14:12:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602380 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 15135C38145 for ; Fri, 2 Sep 2022 14:51:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237160AbiIBOvT (ORCPT ); Fri, 2 Sep 2022 10:51:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236939AbiIBOvD (ORCPT ); Fri, 2 Sep 2022 10:51:03 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 351504D810 for ; Fri, 2 Sep 2022 07:13:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=EU9sg5aPJgpY7LA8+6sIDCi0mVL7owaquPUDRFm190g=; t=1662127986; x=1663337586; b=FwdOX3fXTHZt+dXRl6ur8Ccg8FlHBxIetOMNSLHd0/4Lqyq TmPif3omQRTFery5CF5iHLhdmPGEZKiBV4a9f02QsWEap5h/Ich3vPuqcncTDzRyTKyDNRLGOJ18J wvLHuY++p8Rsi3mnSeRAK9F/fYZXfbdKcM3Ew//+htUpPNwdYY9KAUUX7GjC7bDTbKeZIsA/3ekGq SzmZhu1TYc8GLckzTWUiCrodYw92NV7rDd+Y12flaWhm2R1jzxeYQYFtYrrJbTSN8SWDQ99ZFihnp 1FQ5BQlXE/aq9hzxQHn2TuNkcnXcFdpACnRCa6oEeH8K5o6bWkYoZXWpk/VVO0qQ==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Ps-006Ch3-02; Fri, 02 Sep 2022 16:13:04 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 05/27] wifi: mac80211: move link code to a new file Date: Fri, 2 Sep 2022 16:12:37 +0200 Message-Id: <20220902161143.9f95a21e1f83.I09793626bcf7b079efbcd6b1652af8012c875e04@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg We probably should've done that originally, we already have about 300 lines of code there, and will add more. Move all the link code we wrote to a new file. Signed-off-by: Johannes Berg --- net/mac80211/Makefile | 1 + net/mac80211/ieee80211_i.h | 14 +- net/mac80211/iface.c | 251 ----------------------------------- net/mac80211/link.c | 262 +++++++++++++++++++++++++++++++++++++ 4 files changed, 274 insertions(+), 254 deletions(-) create mode 100644 net/mac80211/link.c diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index af1df3a6bd55..b8de44da1fb8 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -16,6 +16,7 @@ mac80211-y := \ s1g.o \ ibss.o \ iface.o \ + link.o \ rate.o \ michael.o \ tkip.o \ diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index e902feecfad4..b41c49338cd3 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1930,9 +1930,6 @@ void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); int ieee80211_add_virtual_monitor(struct ieee80211_local *local); void ieee80211_del_virtual_monitor(struct ieee80211_local *local); -int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, - u16 new_links); - bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata, bool update_bss); @@ -1943,6 +1940,17 @@ static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) return test_bit(SDATA_STATE_RUNNING, &sdata->state); } +/* link handling */ +void ieee80211_link_setup(struct ieee80211_link_data *link); +void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, + int link_id, + struct ieee80211_link_data *link, + struct ieee80211_bss_conf *link_conf); +void ieee80211_link_stop(struct ieee80211_link_data *link); +int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, + u16 new_links); +void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata); + /* tx handling */ void ieee80211_clear_tx_pending(struct ieee80211_local *local); void ieee80211_tx_pending(struct tasklet_struct *t); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 14505278073a..bf1c44d53c30 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -368,257 +368,6 @@ static int ieee80211_open(struct net_device *dev) return err; } -static void ieee80211_link_setup(struct ieee80211_link_data *link) -{ - if (link->sdata->vif.type == NL80211_IFTYPE_STATION) - ieee80211_mgd_setup_link(link); -} - -static void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, - int link_id, - struct ieee80211_link_data *link, - struct ieee80211_bss_conf *link_conf) -{ - bool deflink = link_id < 0; - - if (link_id < 0) - link_id = 0; - - rcu_assign_pointer(sdata->vif.link_conf[link_id], link_conf); - rcu_assign_pointer(sdata->link[link_id], link); - - link->sdata = sdata; - link->link_id = link_id; - link->conf = link_conf; - link_conf->link_id = link_id; - - INIT_WORK(&link->csa_finalize_work, - ieee80211_csa_finalize_work); - INIT_WORK(&link->color_change_finalize_work, - ieee80211_color_change_finalize_work); - INIT_LIST_HEAD(&link->assigned_chanctx_list); - INIT_LIST_HEAD(&link->reserved_chanctx_list); - INIT_DELAYED_WORK(&link->dfs_cac_timer_work, - ieee80211_dfs_cac_timer_work); - - if (!deflink) { - switch (sdata->vif.type) { - case NL80211_IFTYPE_AP: - ether_addr_copy(link_conf->addr, - sdata->wdev.links[link_id].addr); - link_conf->bssid = link_conf->addr; - WARN_ON(!(sdata->wdev.valid_links & BIT(link_id))); - break; - case NL80211_IFTYPE_STATION: - /* station sets the bssid in ieee80211_mgd_setup_link */ - break; - default: - WARN_ON(1); - } - } -} - -static void ieee80211_link_stop(struct ieee80211_link_data *link) -{ - if (link->sdata->vif.type == NL80211_IFTYPE_STATION) - ieee80211_mgd_stop_link(link); - - ieee80211_link_release_channel(link); -} - -struct link_container { - struct ieee80211_link_data data; - struct ieee80211_bss_conf conf; -}; - -static void ieee80211_free_links(struct ieee80211_sub_if_data *sdata, - struct link_container **links) -{ - LIST_HEAD(keys); - unsigned int link_id; - - for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { - if (!links[link_id]) - continue; - ieee80211_remove_link_keys(&links[link_id]->data, &keys); - } - - synchronize_rcu(); - - ieee80211_free_key_list(sdata->local, &keys); - - for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { - if (!links[link_id]) - continue; - ieee80211_link_stop(&links[link_id]->data); - kfree(links[link_id]); - } -} - -static int ieee80211_check_dup_link_addrs(struct ieee80211_sub_if_data *sdata) -{ - unsigned int i, j; - - for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) { - struct ieee80211_link_data *link1; - - link1 = sdata_dereference(sdata->link[i], sdata); - if (!link1) - continue; - for (j = i + 1; j < IEEE80211_MLD_MAX_NUM_LINKS; j++) { - struct ieee80211_link_data *link2; - - link2 = sdata_dereference(sdata->link[j], sdata); - if (!link2) - continue; - - if (ether_addr_equal(link1->conf->addr, - link2->conf->addr)) - return -EALREADY; - } - } - - return 0; -} - -static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata, - struct link_container **to_free, - u16 new_links) -{ - u16 old_links = sdata->vif.valid_links; - unsigned long add = new_links & ~old_links; - unsigned long rem = old_links & ~new_links; - unsigned int link_id; - int ret; - struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS] = {}, *link; - struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS]; - struct ieee80211_link_data *old_data[IEEE80211_MLD_MAX_NUM_LINKS]; - bool use_deflink = old_links == 0; /* set for error case */ - - sdata_assert_lock(sdata); - - memset(to_free, 0, sizeof(links)); - - if (old_links == new_links) - return 0; - - /* if there were no old links, need to clear the pointers to deflink */ - if (!old_links) - rem |= BIT(0); - - /* allocate new link structures first */ - for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) { - link = kzalloc(sizeof(*link), GFP_KERNEL); - if (!link) { - ret = -ENOMEM; - goto free; - } - links[link_id] = link; - } - - /* keep track of the old pointers for the driver */ - BUILD_BUG_ON(sizeof(old) != sizeof(sdata->vif.link_conf)); - memcpy(old, sdata->vif.link_conf, sizeof(old)); - /* and for us in error cases */ - BUILD_BUG_ON(sizeof(old_data) != sizeof(sdata->link)); - memcpy(old_data, sdata->link, sizeof(old_data)); - - /* grab old links to free later */ - for_each_set_bit(link_id, &rem, IEEE80211_MLD_MAX_NUM_LINKS) { - if (rcu_access_pointer(sdata->link[link_id]) != &sdata->deflink) { - /* - * we must have allocated the data through this path so - * we know we can free both at the same time - */ - to_free[link_id] = container_of(rcu_access_pointer(sdata->link[link_id]), - typeof(*links[link_id]), - data); - } - - RCU_INIT_POINTER(sdata->link[link_id], NULL); - RCU_INIT_POINTER(sdata->vif.link_conf[link_id], NULL); - } - - /* link them into data structures */ - for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) { - WARN_ON(!use_deflink && - rcu_access_pointer(sdata->link[link_id]) == &sdata->deflink); - - link = links[link_id]; - ieee80211_link_init(sdata, link_id, &link->data, &link->conf); - ieee80211_link_setup(&link->data); - } - - if (new_links == 0) - ieee80211_link_init(sdata, -1, &sdata->deflink, - &sdata->vif.bss_conf); - - sdata->vif.valid_links = new_links; - - ret = ieee80211_check_dup_link_addrs(sdata); - if (!ret) { - /* tell the driver */ - ret = drv_change_vif_links(sdata->local, sdata, - old_links, new_links, - old); - } - - if (ret) { - /* restore config */ - memcpy(sdata->link, old_data, sizeof(old_data)); - memcpy(sdata->vif.link_conf, old, sizeof(old)); - sdata->vif.valid_links = old_links; - /* and free (only) the newly allocated links */ - memset(to_free, 0, sizeof(links)); - goto free; - } - - /* use deflink/bss_conf again if and only if there are no more links */ - use_deflink = new_links == 0; - - goto deinit; -free: - /* if we failed during allocation, only free all */ - for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { - kfree(links[link_id]); - links[link_id] = NULL; - } -deinit: - if (use_deflink) - ieee80211_link_init(sdata, -1, &sdata->deflink, - &sdata->vif.bss_conf); - return ret; -} - -int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, - u16 new_links) -{ - struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS]; - int ret; - - ret = ieee80211_vif_update_links(sdata, links, new_links); - ieee80211_free_links(sdata, links); - - return ret; -} - -static void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) -{ - struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS]; - - /* - * The locking here is different because when we free links - * in the station case we need to be able to cancel_work_sync() - * something that also takes the lock. - */ - - sdata_lock(sdata); - ieee80211_vif_update_links(sdata, links, 0); - sdata_unlock(sdata); - - ieee80211_free_links(sdata, links); -} - static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_down) { struct ieee80211_local *local = sdata->local; diff --git a/net/mac80211/link.c b/net/mac80211/link.c new file mode 100644 index 000000000000..096f313c2a6e --- /dev/null +++ b/net/mac80211/link.c @@ -0,0 +1,262 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * MLO link handling + * + * Copyright (C) 2022 Intel Corporation + */ +#include +#include +#include +#include "ieee80211_i.h" +#include "driver-ops.h" + +void ieee80211_link_setup(struct ieee80211_link_data *link) +{ + if (link->sdata->vif.type == NL80211_IFTYPE_STATION) + ieee80211_mgd_setup_link(link); +} + +void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, + int link_id, + struct ieee80211_link_data *link, + struct ieee80211_bss_conf *link_conf) +{ + bool deflink = link_id < 0; + + if (link_id < 0) + link_id = 0; + + rcu_assign_pointer(sdata->vif.link_conf[link_id], link_conf); + rcu_assign_pointer(sdata->link[link_id], link); + + link->sdata = sdata; + link->link_id = link_id; + link->conf = link_conf; + link_conf->link_id = link_id; + + INIT_WORK(&link->csa_finalize_work, + ieee80211_csa_finalize_work); + INIT_WORK(&link->color_change_finalize_work, + ieee80211_color_change_finalize_work); + INIT_LIST_HEAD(&link->assigned_chanctx_list); + INIT_LIST_HEAD(&link->reserved_chanctx_list); + INIT_DELAYED_WORK(&link->dfs_cac_timer_work, + ieee80211_dfs_cac_timer_work); + + if (!deflink) { + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP: + ether_addr_copy(link_conf->addr, + sdata->wdev.links[link_id].addr); + link_conf->bssid = link_conf->addr; + WARN_ON(!(sdata->wdev.valid_links & BIT(link_id))); + break; + case NL80211_IFTYPE_STATION: + /* station sets the bssid in ieee80211_mgd_setup_link */ + break; + default: + WARN_ON(1); + } + } +} + +void ieee80211_link_stop(struct ieee80211_link_data *link) +{ + if (link->sdata->vif.type == NL80211_IFTYPE_STATION) + ieee80211_mgd_stop_link(link); + + ieee80211_link_release_channel(link); +} + +struct link_container { + struct ieee80211_link_data data; + struct ieee80211_bss_conf conf; +}; + +static void ieee80211_free_links(struct ieee80211_sub_if_data *sdata, + struct link_container **links) +{ + LIST_HEAD(keys); + unsigned int link_id; + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + if (!links[link_id]) + continue; + ieee80211_remove_link_keys(&links[link_id]->data, &keys); + } + + synchronize_rcu(); + + ieee80211_free_key_list(sdata->local, &keys); + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + if (!links[link_id]) + continue; + ieee80211_link_stop(&links[link_id]->data); + kfree(links[link_id]); + } +} + +static int ieee80211_check_dup_link_addrs(struct ieee80211_sub_if_data *sdata) +{ + unsigned int i, j; + + for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) { + struct ieee80211_link_data *link1; + + link1 = sdata_dereference(sdata->link[i], sdata); + if (!link1) + continue; + for (j = i + 1; j < IEEE80211_MLD_MAX_NUM_LINKS; j++) { + struct ieee80211_link_data *link2; + + link2 = sdata_dereference(sdata->link[j], sdata); + if (!link2) + continue; + + if (ether_addr_equal(link1->conf->addr, + link2->conf->addr)) + return -EALREADY; + } + } + + return 0; +} + +static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata, + struct link_container **to_free, + u16 new_links) +{ + u16 old_links = sdata->vif.valid_links; + unsigned long add = new_links & ~old_links; + unsigned long rem = old_links & ~new_links; + unsigned int link_id; + int ret; + struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS] = {}, *link; + struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS]; + struct ieee80211_link_data *old_data[IEEE80211_MLD_MAX_NUM_LINKS]; + bool use_deflink = old_links == 0; /* set for error case */ + + sdata_assert_lock(sdata); + + memset(to_free, 0, sizeof(links)); + + if (old_links == new_links) + return 0; + + /* if there were no old links, need to clear the pointers to deflink */ + if (!old_links) + rem |= BIT(0); + + /* allocate new link structures first */ + for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) { + link = kzalloc(sizeof(*link), GFP_KERNEL); + if (!link) { + ret = -ENOMEM; + goto free; + } + links[link_id] = link; + } + + /* keep track of the old pointers for the driver */ + BUILD_BUG_ON(sizeof(old) != sizeof(sdata->vif.link_conf)); + memcpy(old, sdata->vif.link_conf, sizeof(old)); + /* and for us in error cases */ + BUILD_BUG_ON(sizeof(old_data) != sizeof(sdata->link)); + memcpy(old_data, sdata->link, sizeof(old_data)); + + /* grab old links to free later */ + for_each_set_bit(link_id, &rem, IEEE80211_MLD_MAX_NUM_LINKS) { + if (rcu_access_pointer(sdata->link[link_id]) != &sdata->deflink) { + /* + * we must have allocated the data through this path so + * we know we can free both at the same time + */ + to_free[link_id] = container_of(rcu_access_pointer(sdata->link[link_id]), + typeof(*links[link_id]), + data); + } + + RCU_INIT_POINTER(sdata->link[link_id], NULL); + RCU_INIT_POINTER(sdata->vif.link_conf[link_id], NULL); + } + + /* link them into data structures */ + for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) { + WARN_ON(!use_deflink && + rcu_access_pointer(sdata->link[link_id]) == &sdata->deflink); + + link = links[link_id]; + ieee80211_link_init(sdata, link_id, &link->data, &link->conf); + ieee80211_link_setup(&link->data); + } + + if (new_links == 0) + ieee80211_link_init(sdata, -1, &sdata->deflink, + &sdata->vif.bss_conf); + + sdata->vif.valid_links = new_links; + + ret = ieee80211_check_dup_link_addrs(sdata); + if (!ret) { + /* tell the driver */ + ret = drv_change_vif_links(sdata->local, sdata, + old_links, new_links, + old); + } + + if (ret) { + /* restore config */ + memcpy(sdata->link, old_data, sizeof(old_data)); + memcpy(sdata->vif.link_conf, old, sizeof(old)); + sdata->vif.valid_links = old_links; + /* and free (only) the newly allocated links */ + memset(to_free, 0, sizeof(links)); + goto free; + } + + /* use deflink/bss_conf again if and only if there are no more links */ + use_deflink = new_links == 0; + + goto deinit; +free: + /* if we failed during allocation, only free all */ + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { + kfree(links[link_id]); + links[link_id] = NULL; + } +deinit: + if (use_deflink) + ieee80211_link_init(sdata, -1, &sdata->deflink, + &sdata->vif.bss_conf); + return ret; +} + +int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, + u16 new_links) +{ + struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS]; + int ret; + + ret = ieee80211_vif_update_links(sdata, links, new_links); + ieee80211_free_links(sdata, links); + + return ret; +} + +void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) +{ + struct link_container *links[IEEE80211_MLD_MAX_NUM_LINKS]; + + /* + * The locking here is different because when we free links + * in the station case we need to be able to cancel_work_sync() + * something that also takes the lock. + */ + + sdata_lock(sdata); + ieee80211_vif_update_links(sdata, links, 0); + sdata_unlock(sdata); + + ieee80211_free_links(sdata, links); +} From patchwork Fri Sep 2 14:12:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602639 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 60684C6FA82 for ; Fri, 2 Sep 2022 14:51:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236372AbiIBOv0 (ORCPT ); Fri, 2 Sep 2022 10:51:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235921AbiIBOvE (ORCPT ); Fri, 2 Sep 2022 10:51:04 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7276625EAF for ; Fri, 2 Sep 2022 07:13:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=4Gipd64EzMlnznd/CUNYXHCRtR+85bb+BXUY15tTYus=; t=1662127988; x=1663337588; b=MxOTq1z4EhLQ8+tf2ytlLsXAnUX7PFpT1eu0h1OU1ax6ApW B2j+UexMZkt/WTPnluSisxfahRsVQS4Ln5AcL8IWn+pLiojqvN7o0wo5krH/5NaGZNHM5dV8Qazab 7t1Hig9FHeoleO0l1tERL2ttSRcxE6AgN2Gi+NmQibiUUXFW+OZxTWmnc3NEMlPLMK9E2XljXngzy 6XiMcuP0tDPz8ya4NBKIkQ/cM3p+7o15wwPSH4HgMLrtLFSlcGRiQhLhZRLPt16TDHsCpwxfceTRT FFtvpvxkCX/+hM0h0osckX7xTsQtBfb+cz90+tg2Eddd1xA2ZT5FsJ3XhVe9byAQ==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Ps-006Ch3-0t; Fri, 02 Sep 2022 16:13:04 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 06/27] wifi: mac80211: mlme: assign link address correctly Date: Fri, 2 Sep 2022 16:12:38 +0200 Message-Id: <20220902161143.dde5fca43e3a.Ie8541b90865553a827c70c903c2f2a5238e77b4c@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Right now, we assign the link address only after we add the link to the driver, which is quite obviously wrong. It happens to work in many cases because it gets updated immediately, and then link_conf updates may update it, but it's clearly not really right. Set the link address during ieee80211_mgd_setup_link() so it's set before telling the driver about the link. Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link") Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index ef192974949c..4c8bbf0bd25b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -6322,6 +6322,8 @@ void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) if (sdata->u.mgd.assoc_data) ether_addr_copy(link->conf->addr, sdata->u.mgd.assoc_data->link[link_id].addr); + else if (!is_valid_ether_addr(link->conf->addr)) + eth_random_addr(link->conf->addr); } /* scan finished notification */ @@ -6409,9 +6411,6 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, goto out_err; } - if (mlo && !is_valid_ether_addr(link->conf->addr)) - eth_random_addr(link->conf->addr); - if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) { err = -EINVAL; goto out_err; From patchwork Fri Sep 2 14:12:39 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602377 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7BB03ECAAD5 for ; Fri, 2 Sep 2022 14:51:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236612AbiIBOv1 (ORCPT ); Fri, 2 Sep 2022 10:51:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232681AbiIBOvE (ORCPT ); Fri, 2 Sep 2022 10:51:04 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19A6B40E2A for ; Fri, 2 Sep 2022 07:13:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=l0opTpHt6Rx1DUw/Kr7GdVubMvkd2iqrbkwIVu7k4/I=; t=1662127989; x=1663337589; b=UrCqk6MrLUcg8i8kLrwWrKD4Y5vA6F+/c4IjXKZ+CSbqqVG aNen9u768kVpSLcQXGtTedc7IzKhHnjXF51TyK1JbnW0O+Q8Oe9iNDM82vNBgyHoiQVITyJ1DhOkA dypry/z+iJiTrgD+Q3/NCcDd35UpviYTpGLakosB1xPeLH0g/+fLbqkR9LXimoZ8N8i0rBf0M0sAX qWPW9lYIoKVihZV/7+a3sfC2DL0zYvMJmw0AlfNjkH6Q7NT5c+HBJ33jlcCurGxIDo4J5L5IuUBd4 EWNwKunOQ6ej05GD2cfw4KqlaPVPfbO5Lm7YPNJrlH7LTOZoyVBEA/WO1mlWaG9w==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pu-006Ch3-1l; Fri, 02 Sep 2022 16:13:06 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 07/27] wifi: mac80211_hwsim: warn on invalid link address Date: Fri, 2 Sep 2022 16:12:39 +0200 Message-Id: <20220902161143.e0f195a3d28e.Ie35415a32f735d579bb26b35d43ab9206da85927@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Catch the bug fixed in mac80211 by the previous patch and warn if an invalid address is added (or removed). Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 70a72a03398a..a75420d92816 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1299,6 +1299,8 @@ static void mac80211_hwsim_config_mac_nl(struct ieee80211_hw *hw, struct sk_buff *skb; void *msg_head; + WARN_ON(!is_valid_ether_addr(addr)); + if (!_portid && !hwsim_virtio_enabled) return; From patchwork Fri Sep 2 14:12:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602637 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF5E9C54EE9 for ; Fri, 2 Sep 2022 14:51:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237139AbiIBOve (ORCPT ); Fri, 2 Sep 2022 10:51:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58380 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236580AbiIBOvE (ORCPT ); Fri, 2 Sep 2022 10:51:04 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1AC1A82FB7 for ; Fri, 2 Sep 2022 07:13:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=DJ01+NeHqJ+XouUvPRpEV5QJqsp1sG1Hy/t+PQvBcHM=; t=1662127989; x=1663337589; b=WRa86XUYTCey+KGOAfFNPAiuFFbC/3mknaJ6UIpaOthWmny 6oKY6dHUEkBQvxL6MLV9SMbutwDL21s8VmJFJDg+bCXOFMs+qtCG+hzoDV5xOjiVJ+rsruGZjxo// ozB//W9SK0exvwRKk8FbUBUto+T2nK4jLIdgjllYtP+T3jJyfi9YDr2d8sjCnLktZZsQTZDFeNl6m F45ZxeJ8P2xXPXgSqFQbD9Kyo/w0tLXvP2TlOrTMS3nBPbpOut6F71IA9DRm+FRnyddOTgm/52ZyT 96SmEOjemYm7nAyb+9ig7b2IJ9wrhXBcp+2kDcAFkAGu98KHCIaHKKcMEUW5SRHQ==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pv-006Ch3-0K; Fri, 02 Sep 2022 16:13:07 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Benjamin Berg Subject: [PATCH 08/27] wifi: mac80211: use correct rx link_sta instead of default Date: Fri, 2 Sep 2022 16:12:40 +0200 Message-Id: <20220902161143.028e767b20a4.I4133fd56517e260f147fce5a65f5a0b8bfa70d69@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Benjamin Berg Use rx->link_sta everywhere instead of accessing the default link. Signed-off-by: Benjamin Berg Signed-off-by: Johannes Berg --- net/mac80211/rx.c | 69 ++++++++++++++++++++++++----------------------- 1 file changed, 35 insertions(+), 34 deletions(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 511c809e2c6b..38622446ea8a 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1452,7 +1452,7 @@ ieee80211_rx_h_check_dup(struct ieee80211_rx_data *rx) if (unlikely(ieee80211_has_retry(hdr->frame_control) && rx->sta->last_seq_ctrl[rx->seqno_idx] == hdr->seq_ctrl)) { I802_DEBUG_INC(rx->local->dot11FrameDuplicateCount); - rx->sta->deflink.rx_stats.num_duplicates++; + rx->link_sta->rx_stats.num_duplicates++; return RX_DROP_UNUSABLE; } else if (!(status->flag & RX_FLAG_AMSDU_MORE)) { rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl; @@ -1731,12 +1731,13 @@ static ieee80211_rx_result debug_noinline ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) { struct sta_info *sta = rx->sta; + struct link_sta_info *link_sta = rx->link_sta; struct sk_buff *skb = rx->skb; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; int i; - if (!sta) + if (!sta || !link_sta) return RX_CONTINUE; /* @@ -1752,47 +1753,47 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) NL80211_IFTYPE_ADHOC); if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid) && test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { - sta->deflink.rx_stats.last_rx = jiffies; + link_sta->rx_stats.last_rx = jiffies; if (ieee80211_is_data(hdr->frame_control) && !is_multicast_ether_addr(hdr->addr1)) - sta->deflink.rx_stats.last_rate = + link_sta->rx_stats.last_rate = sta_stats_encode_rate(status); } } else if (rx->sdata->vif.type == NL80211_IFTYPE_OCB) { - sta->deflink.rx_stats.last_rx = jiffies; + link_sta->rx_stats.last_rx = jiffies; } else if (!ieee80211_is_s1g_beacon(hdr->frame_control) && !is_multicast_ether_addr(hdr->addr1)) { /* * Mesh beacons will update last_rx when if they are found to * match the current local configuration when processed. */ - sta->deflink.rx_stats.last_rx = jiffies; + link_sta->rx_stats.last_rx = jiffies; if (ieee80211_is_data(hdr->frame_control)) - sta->deflink.rx_stats.last_rate = sta_stats_encode_rate(status); + link_sta->rx_stats.last_rate = sta_stats_encode_rate(status); } - sta->deflink.rx_stats.fragments++; + link_sta->rx_stats.fragments++; - u64_stats_update_begin(&rx->sta->deflink.rx_stats.syncp); - sta->deflink.rx_stats.bytes += rx->skb->len; - u64_stats_update_end(&rx->sta->deflink.rx_stats.syncp); + u64_stats_update_begin(&link_sta->rx_stats.syncp); + link_sta->rx_stats.bytes += rx->skb->len; + u64_stats_update_end(&link_sta->rx_stats.syncp); if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) { - sta->deflink.rx_stats.last_signal = status->signal; - ewma_signal_add(&sta->deflink.rx_stats_avg.signal, + link_sta->rx_stats.last_signal = status->signal; + ewma_signal_add(&link_sta->rx_stats_avg.signal, -status->signal); } if (status->chains) { - sta->deflink.rx_stats.chains = status->chains; + link_sta->rx_stats.chains = status->chains; for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) { int signal = status->chain_signal[i]; if (!(status->chains & BIT(i))) continue; - sta->deflink.rx_stats.chain_signal_last[i] = signal; - ewma_signal_add(&sta->deflink.rx_stats_avg.chain_signal[i], + link_sta->rx_stats.chain_signal_last[i] = signal; + ewma_signal_add(&link_sta->rx_stats_avg.chain_signal[i], -signal); } } @@ -1853,7 +1854,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) * Update counter and free packet here to avoid * counting this as a dropped packed. */ - sta->deflink.rx_stats.packets++; + link_sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; } @@ -2389,7 +2390,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) out: ieee80211_led_rx(rx->local); if (rx->sta) - rx->sta->deflink.rx_stats.packets++; + rx->link_sta->rx_stats.packets++; return RX_CONTINUE; } @@ -2665,9 +2666,9 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) * for non-QoS-data frames. Here we know it's a data * frame, so count MSDUs. */ - u64_stats_update_begin(&rx->sta->deflink.rx_stats.syncp); - rx->sta->deflink.rx_stats.msdu[rx->seqno_idx]++; - u64_stats_update_end(&rx->sta->deflink.rx_stats.syncp); + u64_stats_update_begin(&rx->link_sta->rx_stats.syncp); + rx->link_sta->rx_stats.msdu[rx->seqno_idx]++; + u64_stats_update_end(&rx->link_sta->rx_stats.syncp); } if ((sdata->vif.type == NL80211_IFTYPE_AP || @@ -3364,7 +3365,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) switch (mgmt->u.action.category) { case WLAN_CATEGORY_HT: /* reject HT action frames from stations not supporting HT */ - if (!rx->sta->sta.deflink.ht_cap.ht_supported) + if (!rx->link_sta->pub->ht_cap.ht_supported) goto invalid; if (sdata->vif.type != NL80211_IFTYPE_STATION && @@ -3428,26 +3429,26 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) struct sta_opmode_info sta_opmode = {}; /* If it doesn't support 40 MHz it can't change ... */ - if (!(rx->sta->sta.deflink.ht_cap.cap & + if (!(rx->link_sta->pub->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) goto handled; if (chanwidth == IEEE80211_HT_CHANWIDTH_20MHZ) max_bw = IEEE80211_STA_RX_BW_20; else - max_bw = ieee80211_sta_cap_rx_bw(&rx->sta->deflink); + max_bw = ieee80211_sta_cap_rx_bw(rx->link_sta); /* set cur_max_bandwidth and recalc sta bw */ - rx->sta->deflink.cur_max_bandwidth = max_bw; - new_bw = ieee80211_sta_cur_vht_bw(&rx->sta->deflink); + rx->link_sta->cur_max_bandwidth = max_bw; + new_bw = ieee80211_sta_cur_vht_bw(rx->link_sta); - if (rx->sta->sta.deflink.bandwidth == new_bw) + if (rx->link_sta->pub->bandwidth == new_bw) goto handled; - rx->sta->sta.deflink.bandwidth = new_bw; + rx->link_sta->pub->bandwidth = new_bw; sband = rx->local->hw.wiphy->bands[status->band]; sta_opmode.bw = - ieee80211_sta_rx_bw_to_chan_width(&rx->sta->deflink); + ieee80211_sta_rx_bw_to_chan_width(rx->link_sta); sta_opmode.changed = STA_OPMODE_MAX_BW_CHANGED; rate_control_rate_update(local, sband, rx->sta, 0, @@ -3641,7 +3642,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) handled: if (rx->sta) - rx->sta->deflink.rx_stats.packets++; + rx->link_sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; @@ -3685,7 +3686,7 @@ ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx) if (cfg80211_rx_mgmt_ext(&rx->sdata->wdev, &info)) { if (rx->sta) - rx->sta->deflink.rx_stats.packets++; + rx->link_sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; } @@ -3723,7 +3724,7 @@ ieee80211_rx_h_action_post_userspace(struct ieee80211_rx_data *rx) handled: if (rx->sta) - rx->sta->deflink.rx_stats.packets++; + rx->link_sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; } @@ -3943,7 +3944,7 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, case RX_DROP_MONITOR: I802_DEBUG_INC(rx->sdata->local->rx_handlers_drop); if (rx->sta) - rx->sta->deflink.rx_stats.dropped++; + rx->link_sta->rx_stats.dropped++; fallthrough; case RX_CONTINUE: { struct ieee80211_rate *rate = NULL; @@ -3962,7 +3963,7 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, case RX_DROP_UNUSABLE: I802_DEBUG_INC(rx->sdata->local->rx_handlers_drop); if (rx->sta) - rx->sta->deflink.rx_stats.dropped++; + rx->link_sta->rx_stats.dropped++; dev_kfree_skb(rx->skb); break; case RX_QUEUED: From patchwork Fri Sep 2 14:12:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602374 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0340C54EE9 for ; Fri, 2 Sep 2022 14:51:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235495AbiIBOvj (ORCPT ); Fri, 2 Sep 2022 10:51:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236965AbiIBOvG (ORCPT ); Fri, 2 Sep 2022 10:51:06 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9443F8B9A2 for ; Fri, 2 Sep 2022 07:13:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=qucHCufpAW8CUBkqsg1eeBnd6Rluv32pCX273kTnC1A=; t=1662127989; x=1663337589; b=BoLklS2pHavACsuZX2SbCgT0/sAAVmW2UvDwHApwhvbWmiZ IS3qNjXpmOIft366NU9QFRM/ht3Qco7owRQinqxgTXwTfQQNe+dVI8yHKkg0+DGDekktTtI3ngeoT r4LR7nW0vm0SwU2uRfPChtLmKdxPyxz3bOZRgpW7OWCb4+CVQPLMEzaLwG9w8Bir9nMVc8q4OTLA/ aRNwWhYlYqMbuLjHirFH92Gsx81pwnPrgnxJdwVA9JB7uyEmOPS1+U8jnAVfXDPbCTlk/WutsI+/b pvRIG4qLR0VcJt/5ojsSQpGJSsxPkc+H2Hd6mEbWnhQ1qRKZErRwB/mVrQZLds0Q==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pv-006Ch3-1d; Fri, 02 Sep 2022 16:13:07 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Benjamin Berg Subject: [PATCH 09/27] wifi: mac80211: make smps_mode per-link Date: Fri, 2 Sep 2022 16:12:41 +0200 Message-Id: <20220902161143.f0635cc662ee.I95aa5896e81c80a6bb017f72c6c126c7b3af56e0@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Benjamin Berg The SMPS power save mode needs to be per-link rather than being shared for all links. As such, move it into struct ieee80211_link_sta. Signed-off-by: Benjamin Berg Signed-off-by: Johannes Berg --- drivers/net/wireless/ath/ath10k/mac.c | 6 +++--- drivers/net/wireless/ath/ath11k/mac.c | 6 +++--- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- drivers/net/wireless/intel/iwlegacy/4965-rs.c | 2 +- drivers/net/wireless/intel/iwlegacy/common.c | 8 ++++---- drivers/net/wireless/intel/iwlwifi/dvm/rs.c | 6 +++--- drivers/net/wireless/intel/iwlwifi/dvm/sta.c | 10 +++++----- drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 6 +++--- drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 2 +- drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 2 +- drivers/net/wireless/mediatek/mt76/mt7603/main.c | 2 +- drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 2 +- drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | 2 +- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 4 ++-- drivers/net/wireless/ralink/rt2x00/rt2x00queue.c | 2 +- include/net/mac80211.h | 4 ++-- net/mac80211/he.c | 4 ++-- net/mac80211/ht.c | 7 ++++--- net/mac80211/rc80211_minstrel_ht.c | 6 +++--- net/mac80211/rx.c | 4 ++-- net/mac80211/sta_info.c | 3 ++- 21 files changed, 46 insertions(+), 44 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 23381a9db6ae..e086db920a82 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -8520,7 +8520,7 @@ static void ath10k_sta_rc_update(struct ieee80211_hw *hw, "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n", sta->addr, changed, sta->deflink.bandwidth, sta->deflink.rx_nss, - sta->smps_mode); + sta->deflink.smps_mode); if (changed & IEEE80211_RC_BW_CHANGED) { bw = WMI_PEER_CHWIDTH_20MHZ; @@ -8554,7 +8554,7 @@ static void ath10k_sta_rc_update(struct ieee80211_hw *hw, if (changed & IEEE80211_RC_SMPS_CHANGED) { smps = WMI_PEER_SMPS_PS_NONE; - switch (sta->smps_mode) { + switch (sta->deflink.smps_mode) { case IEEE80211_SMPS_AUTOMATIC: case IEEE80211_SMPS_OFF: smps = WMI_PEER_SMPS_PS_NONE; @@ -8567,7 +8567,7 @@ static void ath10k_sta_rc_update(struct ieee80211_hw *hw, break; case IEEE80211_SMPS_NUM_MODES: ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n", - sta->smps_mode, sta->addr); + sta->deflink.smps_mode, sta->addr); smps = WMI_PEER_SMPS_PS_NONE; break; } diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 7e91e347c9ff..f5bf53d6af7e 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -4701,7 +4701,7 @@ static void ath11k_mac_op_sta_rc_update(struct ieee80211_hw *hw, "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n", sta->addr, changed, sta->deflink.bandwidth, sta->deflink.rx_nss, - sta->smps_mode); + sta->deflink.smps_mode); spin_lock_bh(&ar->data_lock); @@ -4737,7 +4737,7 @@ static void ath11k_mac_op_sta_rc_update(struct ieee80211_hw *hw, if (changed & IEEE80211_RC_SMPS_CHANGED) { smps = WMI_PEER_SMPS_PS_NONE; - switch (sta->smps_mode) { + switch (sta->deflink.smps_mode) { case IEEE80211_SMPS_AUTOMATIC: case IEEE80211_SMPS_OFF: smps = WMI_PEER_SMPS_PS_NONE; @@ -4750,7 +4750,7 @@ static void ath11k_mac_op_sta_rc_update(struct ieee80211_hw *hw, break; default: ath11k_warn(ar->ab, "Invalid smps %d in sta rc update for %pM\n", - sta->smps_mode, sta->addr); + sta->deflink.smps_mode, sta->addr); smps = WMI_PEER_SMPS_PS_NONE; break; } diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index ba16a7f3e23d..ba271a10d4ab 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -2160,7 +2160,7 @@ static void setup_frame_info(struct ieee80211_hw *hw, fi->keyix = an->ps_key; else fi->keyix = ATH9K_TXKEYIX_INVALID; - fi->dyn_smps = sta && sta->smps_mode == IEEE80211_SMPS_DYNAMIC; + fi->dyn_smps = sta && sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC; fi->keytype = keytype; fi->framelen = framelen; fi->tx_power = txpower; diff --git a/drivers/net/wireless/intel/iwlegacy/4965-rs.c b/drivers/net/wireless/intel/iwlegacy/4965-rs.c index c62f299b9e0a..290e2c966ecb 100644 --- a/drivers/net/wireless/intel/iwlegacy/4965-rs.c +++ b/drivers/net/wireless/intel/iwlegacy/4965-rs.c @@ -1167,7 +1167,7 @@ il4965_rs_switch_to_mimo2(struct il_priv *il, struct il_lq_sta *lq_sta, if (!conf_is_ht(conf) || !sta->deflink.ht_cap.ht_supported) return -1; - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) return -1; /* Need both Tx chains/antennas to support MIMO */ diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c index 04d27a26260b..341c17fe2af4 100644 --- a/drivers/net/wireless/intel/iwlegacy/common.c +++ b/drivers/net/wireless/intel/iwlegacy/common.c @@ -1870,15 +1870,15 @@ il_set_ht_add_station(struct il_priv *il, u8 idx, struct ieee80211_sta *sta) goto done; D_ASSOC("spatial multiplexing power save mode: %s\n", - (sta->smps_mode == IEEE80211_SMPS_STATIC) ? "static" : - (sta->smps_mode == IEEE80211_SMPS_DYNAMIC) ? "dynamic" : + (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) ? "static" : + (sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC) ? "dynamic" : "disabled"); sta_flags = il->stations[idx].sta.station_flags; sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); - switch (sta->smps_mode) { + switch (sta->deflink.smps_mode) { case IEEE80211_SMPS_STATIC: sta_flags |= STA_FLG_MIMO_DIS_MSK; break; @@ -1888,7 +1888,7 @@ il_set_ht_add_station(struct il_priv *il, u8 idx, struct ieee80211_sta *sta) case IEEE80211_SMPS_OFF: break; default: - IL_WARN("Invalid MIMO PS mode %d\n", sta->smps_mode); + IL_WARN("Invalid MIMO PS mode %d\n", sta->deflink.smps_mode); break; } diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c index baffa1cbe8fc..687c906a9d72 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c @@ -2,7 +2,7 @@ /****************************************************************************** * * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. - * Copyright (C) 2019 - 2020 Intel Corporation + * Copyright (C) 2019 - 2020, 2022 Intel Corporation *****************************************************************************/ #include #include @@ -1242,7 +1242,7 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv, if (!conf_is_ht(conf) || !sta->deflink.ht_cap.ht_supported) return -1; - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) return -1; /* Need both Tx chains/antennas to support MIMO */ @@ -1297,7 +1297,7 @@ static int rs_switch_to_mimo3(struct iwl_priv *priv, if (!conf_is_ht(conf) || !sta->deflink.ht_cap.ht_supported) return -1; - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) return -1; /* Need both Tx chains/antennas to support MIMO */ diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/sta.c b/drivers/net/wireless/intel/iwlwifi/dvm/sta.c index 476068c0abb7..cef43cf80620 100644 --- a/drivers/net/wireless/intel/iwlwifi/dvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/dvm/sta.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /****************************************************************************** * - * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014, 2022 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -161,12 +161,12 @@ static void iwl_sta_calc_ht_flags(struct iwl_priv *priv, IWL_DEBUG_INFO(priv, "STA %pM SM PS mode: %s\n", sta->addr, - (sta->smps_mode == IEEE80211_SMPS_STATIC) ? + (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) ? "static" : - (sta->smps_mode == IEEE80211_SMPS_DYNAMIC) ? + (sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC) ? "dynamic" : "disabled"); - switch (sta->smps_mode) { + switch (sta->deflink.smps_mode) { case IEEE80211_SMPS_STATIC: *flags |= STA_FLG_MIMO_DIS_MSK; break; @@ -176,7 +176,7 @@ static void iwl_sta_calc_ht_flags(struct iwl_priv *priv, case IEEE80211_SMPS_OFF: break; default: - IWL_WARN(priv, "Invalid MIMO PS mode %d\n", sta->smps_mode); + IWL_WARN(priv, "Invalid MIMO PS mode %d\n", sta->deflink.smps_mode); break; } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c index d8c3d7ff4f44..752d44d96163 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c @@ -143,7 +143,7 @@ rs_fw_vht_set_enabled_rates(const struct ieee80211_sta *sta, }; /* the station support only a single receive chain */ - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) max_nss = 1; for (i = 0; i < max_nss && i < IWL_TLC_NSS_MAX; i++) { @@ -205,7 +205,7 @@ rs_fw_he_set_enabled_rates(const struct ieee80211_sta *sta, u8 nss = sta->deflink.rx_nss; /* the station support only a single receive chain */ - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) nss = 1; for (i = 0; i < nss && i < IWL_TLC_NSS_MAX; i++) { @@ -270,7 +270,7 @@ static void rs_fw_set_supp_rates(struct ieee80211_sta *sta, cpu_to_le16(ht_cap->mcs.rx_mask[0]); /* the station support only a single receive chain */ - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) cmd->ht_rates[IWL_TLC_NSS_2][IWL_TLC_MCS_PER_BW_80] = 0; else diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c index a79043f30775..814a5e8f3666 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -138,7 +138,7 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, if (!sta->deflink.ht_cap.ht_supported) return false; - if (sta->smps_mode == IEEE80211_SMPS_STATIC) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC) return false; if (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) < 2) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c index ff0d3b3df140..cc92706b3d16 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c @@ -116,7 +116,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, break; } - switch (sta->smps_mode) { + switch (sta->deflink.smps_mode) { case IEEE80211_SMPS_AUTOMATIC: case IEEE80211_SMPS_NUM_MODES: WARN_ON(1); diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c b/drivers/net/wireless/mediatek/mt76/mt7603/main.c index 051715ed90dd..ca50feb0b3a9 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c @@ -658,7 +658,7 @@ mt7603_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, mt7603_wtbl_set_rates(dev, msta, NULL, msta->rates); msta->rate_probe = false; mt7603_wtbl_set_smps(dev, msta, - sta->smps_mode == IEEE80211_SMPS_DYNAMIC); + sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC); spin_unlock_bh(&dev->mt76.lock); } diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 9b17bd97ec09..5c4ca93bcf91 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -896,7 +896,7 @@ void mt76_connac_mcu_wtbl_smps_tlv(struct sk_buff *skb, tlv = mt76_connac_mcu_add_nested_tlv(skb, WTBL_SMPS, sizeof(*smps), wtbl_tlv, sta_wtbl); smps = (struct wtbl_smps *)tlv; - smps->smps = (sta->smps_mode == IEEE80211_SMPS_DYNAMIC); + smps->smps = (sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC); } EXPORT_SYMBOL_GPL(mt76_connac_mcu_wtbl_smps_tlv); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index de30cf5e2d2f..93d96739f802 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -404,7 +404,7 @@ void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi, txwi->rate |= cpu_to_le16(MT_RXWI_RATE_LDPC); if ((info->flags & IEEE80211_TX_CTL_STBC) && nss == 1) txwi->rate |= cpu_to_le16(MT_RXWI_RATE_STBC); - if (nss > 1 && sta && sta->smps_mode == IEEE80211_SMPS_DYNAMIC) + if (nss > 1 && sta && sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC) txwi_flags |= MT_TXWI_FLAGS_MMPS; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) txwi->ack_ctl |= MT_TXWI_ACK_CTL_REQ; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index f83067961945..1081b893f319 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -1304,7 +1304,7 @@ int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev, ra->phy = *phy; break; case RATE_PARAM_MMPS_UPDATE: - ra->mmps_mode = mt7915_mcu_get_mmps_mode(sta->smps_mode); + ra->mmps_mode = mt7915_mcu_get_mmps_mode(sta->deflink.smps_mode); break; default: break; @@ -1459,7 +1459,7 @@ mt7915_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7915_dev *dev, ra->channel = chandef->chan->hw_value; ra->bw = sta->deflink.bandwidth; ra->phy.bw = sta->deflink.bandwidth; - ra->mmps_mode = mt7915_mcu_get_mmps_mode(sta->smps_mode); + ra->mmps_mode = mt7915_mcu_get_mmps_mode(sta->deflink.smps_mode); if (supp_rate) { supp_rate &= mask->control[band].legacy; diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c index 4d06038afd83..98df0aef8168 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c @@ -318,7 +318,7 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev, * when using more then one tx stream (>MCS7). */ if (sta && txdesc->u.ht.mcs > 7 && - sta->smps_mode == IEEE80211_SMPS_DYNAMIC) + sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC) __set_bit(ENTRY_TXD_HT_MIMO_PS, &txdesc->flags); } else { txdesc->u.ht.mcs = rt2x00_get_rate_mcs(hwrate->mcs); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index ffd0ebbff294..d4e1d73d88cc 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2136,6 +2136,7 @@ struct ieee80211_sta_txpwr { * in ieee80211_sta. For MLO Link STA this addr can be same or different * from addr in ieee80211_sta (representing MLD STA addr) * @link_id: the link ID for this link STA (0 for deflink) + * @smps_mode: current SMPS mode (off, static or dynamic) * @supp_rates: Bitmap of supported rates * @ht_cap: HT capabilities of this STA; restricted to our own capabilities * @vht_cap: VHT capabilities of this STA; restricted to our own capabilities @@ -2153,6 +2154,7 @@ struct ieee80211_sta_txpwr { struct ieee80211_link_sta { u8 addr[ETH_ALEN]; u8 link_id; + enum ieee80211_smps_mode smps_mode; u32 supp_rates[NUM_NL80211_BANDS]; struct ieee80211_sta_ht_cap ht_cap; @@ -2191,7 +2193,6 @@ struct ieee80211_link_sta { * if wme is supported. The bits order is like in * IEEE80211_WMM_IE_STA_QOSINFO_AC_*. * @max_sp: max Service Period. Only valid if wme is supported. - * @smps_mode: current SMPS mode (off, static or dynamic) * @rates: rate control selection table * @tdls: indicates whether the STA is a TDLS peer * @tdls_initiator: indicates the STA is an initiator of the TDLS link. Only @@ -2226,7 +2227,6 @@ struct ieee80211_sta { bool wme; u8 uapsd_queues; u8 max_sp; - enum ieee80211_smps_mode smps_mode; struct ieee80211_sta_rates __rcu *rates; bool tdls; bool tdls_initiator; diff --git a/net/mac80211/he.c b/net/mac80211/he.c index d9228fd3f77a..e73899fd4bbb 100644 --- a/net/mac80211/he.c +++ b/net/mac80211/he.c @@ -31,9 +31,9 @@ ieee80211_update_from_he_6ghz_capa(const struct ieee80211_he_6ghz_capa *he_6ghz_ break; } - sta->sta.smps_mode = smps_mode; + link_sta->pub->smps_mode = smps_mode; } else { - sta->sta.smps_mode = IEEE80211_SMPS_OFF; + link_sta->pub->smps_mode = IEEE80211_SMPS_OFF; } switch (le16_get_bits(he_6ghz_capa->capa, diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 8c24817cd497..12a233ba5031 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -299,12 +299,13 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, break; } - if (smps_mode != sta->sta.smps_mode) + if (smps_mode != link_sta->pub->smps_mode) changed = true; - sta->sta.smps_mode = smps_mode; + link_sta->pub->smps_mode = smps_mode; } else { - sta->sta.smps_mode = IEEE80211_SMPS_OFF; + link_sta->pub->smps_mode = IEEE80211_SMPS_OFF; } + return changed; } diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index 5f27e6746762..8c41a545a8b7 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2010-2013 Felix Fietkau - * Copyright (C) 2019-2021 Intel Corporation + * Copyright (C) 2019-2022 Intel Corporation */ #include #include @@ -1478,7 +1478,7 @@ minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, * - for fallback rates, to increase chances of getting through */ if (offset > 0 || - (mi->sta->smps_mode == IEEE80211_SMPS_DYNAMIC && + (mi->sta->deflink.smps_mode == IEEE80211_SMPS_DYNAMIC && group->streams > 1)) { ratetbl->rate[offset].count = ratetbl->rate[offset].count_rts; flags |= IEEE80211_TX_RC_USE_RTS_CTS; @@ -1779,7 +1779,7 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband, nss = minstrel_mcs_groups[i].streams; /* Mark MCS > 7 as unsupported if STA is in static SMPS mode */ - if (sta->smps_mode == IEEE80211_SMPS_STATIC && nss > 1) + if (sta->deflink.smps_mode == IEEE80211_SMPS_STATIC && nss > 1) continue; /* HT rate */ diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 38622446ea8a..af5b8f62164a 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3405,9 +3405,9 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) } /* if no change do nothing */ - if (rx->sta->sta.smps_mode == smps_mode) + if (rx->link_sta->pub->smps_mode == smps_mode) goto handled; - rx->sta->sta.smps_mode = smps_mode; + rx->link_sta->pub->smps_mode = smps_mode; sta_opmode.smps_mode = ieee80211_smps_mode_to_smps_mode(smps_mode); sta_opmode.changed = STA_OPMODE_SMPS_MODE_CHANGED; diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 4944d929def6..815ab0cee503 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -475,6 +475,8 @@ static void sta_info_add_link(struct sta_info *sta, link_sta->link_id = link_id; rcu_assign_pointer(sta->link[link_id], link_info); rcu_assign_pointer(sta->sta.link[link_id], link_sta); + + link_sta->smps_mode = IEEE80211_SMPS_OFF; } static struct sta_info * @@ -628,7 +630,6 @@ __sta_info_alloc(struct ieee80211_sub_if_data *sdata, } } - sta->sta.smps_mode = IEEE80211_SMPS_OFF; sta->sta.max_rc_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_BA; sta->cparams.ce_threshold = CODEL_DISABLED_THRESHOLD; From patchwork Fri Sep 2 14:12:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602636 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD5A9C6FA82 for ; Fri, 2 Sep 2022 14:51:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236493AbiIBOvh (ORCPT ); Fri, 2 Sep 2022 10:51:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236883AbiIBOvG (ORCPT ); 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Fri, 02 Sep 2022 16:13:08 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 10/27] wifi: mac80211: isolate driver from inactive links Date: Fri, 2 Sep 2022 16:12:42 +0200 Message-Id: <20220902161143.5ce3dad3be7c.I92e9f7a6c120cd4a3631baf486ad8b6aafcd796f@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg In order to let the driver select active links and properly make multi-link connections, as a first step isolate the driver from inactive links, and set the active links to be only the association link for client-side interfaces. For AP side nothing changes since APs always have to have all their links active. To simplify things, update the for_each_sta_active_link() API to include the appropriate vif pointer. This also implies not allocating a chanctx for an inactive link, which requires a few more changes. Since we now no longer try to program multiple links to the driver, remove the check in the MLME code. Signed-off-by: Johannes Berg --- include/net/mac80211.h | 30 +++---- net/mac80211/chan.c | 6 ++ net/mac80211/driver-ops.c | 172 ++++++++++++++++++++++++++++++++++++++ net/mac80211/driver-ops.h | 165 ++++++------------------------------ net/mac80211/key.c | 8 ++ net/mac80211/link.c | 66 ++++++++++++--- net/mac80211/mlme.c | 25 ++---- net/mac80211/util.c | 2 +- 8 files changed, 286 insertions(+), 188 deletions(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d4e1d73d88cc..20a2f25a38fa 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1799,6 +1799,9 @@ struct ieee80211_vif_cfg { * @link_conf: in case of MLD, the per-link BSS configuration, * indexed by link ID * @valid_links: bitmap of valid links, or 0 for non-MLO. + * @active_links: The bitmap of active links, or 0 for non-MLO. + * The driver shouldn't change this directly, but use the + * API calls meant for that purpose. * @addr: address of this interface * @p2p: indicates whether this AP or STA interface is a p2p * interface, i.e. a GO or p2p-sta respectively @@ -1834,7 +1837,7 @@ struct ieee80211_vif { struct ieee80211_vif_cfg cfg; struct ieee80211_bss_conf bss_conf; struct ieee80211_bss_conf __rcu *link_conf[IEEE80211_MLD_MAX_NUM_LINKS]; - u16 valid_links; + u16 valid_links, active_links; u8 addr[ETH_ALEN] __aligned(2); bool p2p; @@ -1861,12 +1864,11 @@ struct ieee80211_vif { u8 drv_priv[] __aligned(sizeof(void *)); }; -/* FIXME: for now loop over all the available links; later will be changed - * to loop only over the active links. - */ -#define for_each_vif_active_link(vif, link, link_id) \ - for (link_id = 0; link_id < ARRAY_SIZE((vif)->link_conf); link_id++) \ - if ((link = rcu_dereference((vif)->link_conf[link_id]))) +#define for_each_vif_active_link(vif, link, link_id) \ + for (link_id = 0; link_id < ARRAY_SIZE((vif)->link_conf); link_id++) \ + if ((!(vif)->active_links || \ + (vif)->active_links & BIT(link_id)) && \ + (link = rcu_dereference((vif)->link_conf[link_id]))) static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif) { @@ -2264,13 +2266,13 @@ struct ieee80211_sta { u8 drv_priv[] __aligned(sizeof(void *)); }; -/* FIXME: need to loop only over links which are active and check the actual - * lock - */ -#define for_each_sta_active_link(sta, link_sta, link_id) \ - for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) \ - if (((link_sta) = rcu_dereference_protected((sta)->link[link_id],\ - 1))) \ +/* FIXME: check the locking correctly */ +#define for_each_sta_active_link(vif, sta, link_sta, link_id) \ + for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) \ + if ((!(vif)->active_links || \ + (vif)->active_links & BIT(link_id)) && \ + ((link_sta) = rcu_dereference_protected((sta)->link[link_id],\ + 1))) /** * enum sta_notify_cmd - sta notify command diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index f247daa41563..e72cf0749d49 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -1799,6 +1799,12 @@ int ieee80211_link_use_channel(struct ieee80211_link_data *link, lockdep_assert_held(&local->mtx); + if (sdata->vif.active_links && + !(sdata->vif.active_links & BIT(link->link_id))) { + ieee80211_link_update_chandef(link, chandef); + return 0; + } + mutex_lock(&local->chanctx_mtx); ret = cfg80211_chandef_dfs_required(local->hw.wiphy, diff --git a/net/mac80211/driver-ops.c b/net/mac80211/driver-ops.c index 9b61dc7889c2..5392ffa18270 100644 --- a/net/mac80211/driver-ops.c +++ b/net/mac80211/driver-ops.c @@ -192,6 +192,10 @@ int drv_conf_tx(struct ieee80211_local *local, if (!check_sdata_in_driver(sdata)) return -EIO; + if (sdata->vif.active_links && + !(sdata->vif.active_links & BIT(link->link_id))) + return 0; + if (params->cw_min == 0 || params->cw_min > params->cw_max) { /* * If we can't configure hardware anyway, don't warn. We may @@ -272,6 +276,60 @@ void drv_reset_tsf(struct ieee80211_local *local, trace_drv_return_void(local); } +int drv_assign_vif_chanctx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *link_conf, + struct ieee80211_chanctx *ctx) +{ + int ret = 0; + + drv_verify_link_exists(sdata, link_conf); + if (!check_sdata_in_driver(sdata)) + return -EIO; + + if (sdata->vif.active_links && + !(sdata->vif.active_links & BIT(link_conf->link_id))) + return 0; + + trace_drv_assign_vif_chanctx(local, sdata, link_conf, ctx); + if (local->ops->assign_vif_chanctx) { + WARN_ON_ONCE(!ctx->driver_present); + ret = local->ops->assign_vif_chanctx(&local->hw, + &sdata->vif, + link_conf, + &ctx->conf); + } + trace_drv_return_int(local, ret); + + return ret; +} + +void drv_unassign_vif_chanctx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *link_conf, + struct ieee80211_chanctx *ctx) +{ + might_sleep(); + + drv_verify_link_exists(sdata, link_conf); + if (!check_sdata_in_driver(sdata)) + return; + + if (sdata->vif.active_links && + !(sdata->vif.active_links & BIT(link_conf->link_id))) + return; + + trace_drv_unassign_vif_chanctx(local, sdata, link_conf, ctx); + if (local->ops->unassign_vif_chanctx) { + WARN_ON_ONCE(!ctx->driver_present); + local->ops->unassign_vif_chanctx(&local->hw, + &sdata->vif, + link_conf, + &ctx->conf); + } + trace_drv_return_void(local); +} + int drv_switch_vif_chanctx(struct ieee80211_local *local, struct ieee80211_vif_chanctx_switch *vifs, int n_vifs, enum ieee80211_chanctx_switch_mode mode) @@ -346,3 +404,117 @@ int drv_ampdu_action(struct ieee80211_local *local, return ret; } + +void drv_link_info_changed(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *info, + int link_id, u64 changed) +{ + might_sleep(); + + if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON | + BSS_CHANGED_BEACON_ENABLED) && + sdata->vif.type != NL80211_IFTYPE_AP && + sdata->vif.type != NL80211_IFTYPE_ADHOC && + sdata->vif.type != NL80211_IFTYPE_MESH_POINT && + sdata->vif.type != NL80211_IFTYPE_OCB)) + return; + + if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE || + sdata->vif.type == NL80211_IFTYPE_NAN || + (sdata->vif.type == NL80211_IFTYPE_MONITOR && + !sdata->vif.bss_conf.mu_mimo_owner && + !(changed & BSS_CHANGED_TXPOWER)))) + return; + + if (!check_sdata_in_driver(sdata)) + return; + + if (sdata->vif.active_links && + !(sdata->vif.active_links & BIT(link_id))) + return; + + trace_drv_link_info_changed(local, sdata, info, changed); + if (local->ops->link_info_changed) + local->ops->link_info_changed(&local->hw, &sdata->vif, + info, changed); + else if (local->ops->bss_info_changed) + local->ops->bss_info_changed(&local->hw, &sdata->vif, + info, changed); + trace_drv_return_void(local); +} + +int drv_set_key(struct ieee80211_local *local, + enum set_key_cmd cmd, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + int ret; + + might_sleep(); + + sdata = get_bss_sdata(sdata); + if (!check_sdata_in_driver(sdata)) + return -EIO; + + if (WARN_ON(key->link_id >= 0 && sdata->vif.active_links && + !(sdata->vif.active_links & BIT(key->link_id)))) + return -ENOLINK; + + trace_drv_set_key(local, cmd, sdata, sta, key); + ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key); + trace_drv_return_int(local, ret); + return ret; +} + +int drv_change_vif_links(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + u16 old_links, u16 new_links, + struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS]) +{ + int ret = -EOPNOTSUPP; + + might_sleep(); + + if (!check_sdata_in_driver(sdata)) + return -EIO; + + if (old_links == new_links) + return 0; + + trace_drv_change_vif_links(local, sdata, old_links, new_links); + if (local->ops->change_vif_links) + ret = local->ops->change_vif_links(&local->hw, &sdata->vif, + old_links, new_links, old); + trace_drv_return_int(local, ret); + + return ret; +} + +int drv_change_sta_links(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + u16 old_links, u16 new_links) +{ + int ret = -EOPNOTSUPP; + + might_sleep(); + + if (!check_sdata_in_driver(sdata)) + return -EIO; + + old_links &= sdata->vif.active_links; + new_links &= sdata->vif.active_links; + + if (old_links == new_links) + return 0; + + trace_drv_change_sta_links(local, sdata, sta, old_links, new_links); + if (local->ops->change_sta_links) + ret = local->ops->change_sta_links(&local->hw, &sdata->vif, sta, + old_links, new_links); + trace_drv_return_int(local, ret); + + return ret; +} diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 482f5c97a72b..81e40b0a3b16 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -165,40 +165,10 @@ static inline void drv_vif_cfg_changed(struct ieee80211_local *local, trace_drv_return_void(local); } -static inline void drv_link_info_changed(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - struct ieee80211_bss_conf *info, - int link_id, u64 changed) -{ - might_sleep(); - - if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON | - BSS_CHANGED_BEACON_ENABLED) && - sdata->vif.type != NL80211_IFTYPE_AP && - sdata->vif.type != NL80211_IFTYPE_ADHOC && - sdata->vif.type != NL80211_IFTYPE_MESH_POINT && - sdata->vif.type != NL80211_IFTYPE_OCB)) - return; - - if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE || - sdata->vif.type == NL80211_IFTYPE_NAN || - (sdata->vif.type == NL80211_IFTYPE_MONITOR && - !sdata->vif.bss_conf.mu_mimo_owner && - !(changed & BSS_CHANGED_TXPOWER)))) - return; - - if (!check_sdata_in_driver(sdata)) - return; - - trace_drv_link_info_changed(local, sdata, info, changed); - if (local->ops->link_info_changed) - local->ops->link_info_changed(&local->hw, &sdata->vif, - info, changed); - else if (local->ops->bss_info_changed) - local->ops->bss_info_changed(&local->hw, &sdata->vif, - info, changed); - trace_drv_return_void(local); -} +void drv_link_info_changed(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *info, + int link_id, u64 changed); static inline u64 drv_prepare_multicast(struct ieee80211_local *local, struct netdev_hw_addr_list *mc_list) @@ -256,25 +226,11 @@ static inline int drv_set_tim(struct ieee80211_local *local, return ret; } -static inline int drv_set_key(struct ieee80211_local *local, - enum set_key_cmd cmd, - struct ieee80211_sub_if_data *sdata, - struct ieee80211_sta *sta, - struct ieee80211_key_conf *key) -{ - int ret; - - might_sleep(); - - sdata = get_bss_sdata(sdata); - if (!check_sdata_in_driver(sdata)) - return -EIO; - - trace_drv_set_key(local, cmd, sdata, sta, key); - ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key); - trace_drv_return_int(local, ret); - return ret; -} +int drv_set_key(struct ieee80211_local *local, + enum set_key_cmd cmd, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key); static inline void drv_update_tkip_key(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, @@ -945,52 +901,14 @@ static inline void drv_verify_link_exists(struct ieee80211_sub_if_data *sdata, sdata_assert_lock(sdata); } -static inline int drv_assign_vif_chanctx(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - struct ieee80211_bss_conf *link_conf, - struct ieee80211_chanctx *ctx) -{ - int ret = 0; - - drv_verify_link_exists(sdata, link_conf); - if (!check_sdata_in_driver(sdata)) - return -EIO; - - trace_drv_assign_vif_chanctx(local, sdata, link_conf, ctx); - if (local->ops->assign_vif_chanctx) { - WARN_ON_ONCE(!ctx->driver_present); - ret = local->ops->assign_vif_chanctx(&local->hw, - &sdata->vif, - link_conf, - &ctx->conf); - } - trace_drv_return_int(local, ret); - - return ret; -} - -static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - struct ieee80211_bss_conf *link_conf, - struct ieee80211_chanctx *ctx) -{ - might_sleep(); - - drv_verify_link_exists(sdata, link_conf); - if (!check_sdata_in_driver(sdata)) - return; - - trace_drv_unassign_vif_chanctx(local, sdata, link_conf, ctx); - if (local->ops->unassign_vif_chanctx) { - WARN_ON_ONCE(!ctx->driver_present); - local->ops->unassign_vif_chanctx(&local->hw, - &sdata->vif, - link_conf, - &ctx->conf); - } - trace_drv_return_void(local); -} - +int drv_assign_vif_chanctx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *link_conf, + struct ieee80211_chanctx *ctx); +void drv_unassign_vif_chanctx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *link_conf, + struct ieee80211_chanctx *ctx); int drv_switch_vif_chanctx(struct ieee80211_local *local, struct ieee80211_vif_chanctx_switch *vifs, int n_vifs, enum ieee80211_chanctx_switch_mode mode); @@ -1552,46 +1470,13 @@ static inline int drv_net_fill_forward_path(struct ieee80211_local *local, return ret; } -static inline int drv_change_vif_links(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - u16 old_links, u16 new_links, - struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS]) -{ - int ret = -EOPNOTSUPP; - - might_sleep(); - - if (!check_sdata_in_driver(sdata)) - return -EIO; - - trace_drv_change_vif_links(local, sdata, old_links, new_links); - if (local->ops->change_vif_links) - ret = local->ops->change_vif_links(&local->hw, &sdata->vif, - old_links, new_links, old); - trace_drv_return_int(local, ret); - - return ret; -} - -static inline int drv_change_sta_links(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - struct ieee80211_sta *sta, - u16 old_links, u16 new_links) -{ - int ret = -EOPNOTSUPP; - - might_sleep(); - - if (!check_sdata_in_driver(sdata)) - return -EIO; - - trace_drv_change_sta_links(local, sdata, sta, old_links, new_links); - if (local->ops->change_sta_links) - ret = local->ops->change_sta_links(&local->hw, &sdata->vif, sta, - old_links, new_links); - trace_drv_return_int(local, ret); - - return ret; -} +int drv_change_vif_links(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + u16 old_links, u16 new_links, + struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS]); +int drv_change_sta_links(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta, + u16 old_links, u16 new_links); #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/key.c b/net/mac80211/key.c index d89ec93b243b..f6f0f65fb255 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -177,6 +177,10 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) } } + if (key->conf.link_id >= 0 && sdata->vif.active_links && + !(sdata->vif.active_links & BIT(key->conf.link_id))) + return 0; + ret = drv_set_key(key->local, SET_KEY, sdata, sta ? &sta->sta : NULL, &key->conf); @@ -246,6 +250,10 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) sta = key->sta; sdata = key->sdata; + if (key->conf.link_id >= 0 && sdata->vif.active_links && + !(sdata->vif.active_links & BIT(key->conf.link_id))) + return; + if (!(key->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC | IEEE80211_KEY_FLAG_PUT_MIC_SPACE | IEEE80211_KEY_FLAG_RESERVE_TAILROOM))) diff --git a/net/mac80211/link.c b/net/mac80211/link.c index 096f313c2a6e..8df348a5edce 100644 --- a/net/mac80211/link.c +++ b/net/mac80211/link.c @@ -73,28 +73,37 @@ struct link_container { struct ieee80211_bss_conf conf; }; -static void ieee80211_free_links(struct ieee80211_sub_if_data *sdata, - struct link_container **links) +static void ieee80211_tear_down_links(struct ieee80211_sub_if_data *sdata, + struct link_container **links, u16 mask) { + struct ieee80211_link_data *link; LIST_HEAD(keys); unsigned int link_id; for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { - if (!links[link_id]) + if (!(mask & BIT(link_id))) continue; - ieee80211_remove_link_keys(&links[link_id]->data, &keys); + link = &links[link_id]->data; + if (link_id == 0 && !link) + link = &sdata->deflink; + if (WARN_ON(!link)) + continue; + ieee80211_remove_link_keys(link, &keys); + ieee80211_link_stop(link); } synchronize_rcu(); ieee80211_free_key_list(sdata->local, &keys); +} - for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { - if (!links[link_id]) - continue; - ieee80211_link_stop(&links[link_id]->data); +static void ieee80211_free_links(struct ieee80211_sub_if_data *sdata, + struct link_container **links) +{ + unsigned int link_id; + + for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) kfree(links[link_id]); - } } static int ieee80211_check_dup_link_addrs(struct ieee80211_sub_if_data *sdata) @@ -123,11 +132,38 @@ static int ieee80211_check_dup_link_addrs(struct ieee80211_sub_if_data *sdata) return 0; } +static void ieee80211_set_vif_links_bitmaps(struct ieee80211_sub_if_data *sdata, + u16 links) +{ + sdata->vif.valid_links = links; + + if (!links) { + sdata->vif.active_links = 0; + return; + } + + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP: + /* in an AP all links are always active */ + sdata->vif.active_links = links; + break; + case NL80211_IFTYPE_STATION: + if (sdata->vif.active_links) + break; + WARN_ON(hweight16(links) > 1); + sdata->vif.active_links = links; + break; + default: + WARN_ON(1); + } +} + static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata, struct link_container **to_free, u16 new_links) { u16 old_links = sdata->vif.valid_links; + u16 old_active = sdata->vif.active_links; unsigned long add = new_links & ~old_links; unsigned long rem = old_links & ~new_links; unsigned int link_id; @@ -195,13 +231,17 @@ static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata, ieee80211_link_init(sdata, -1, &sdata->deflink, &sdata->vif.bss_conf); - sdata->vif.valid_links = new_links; - ret = ieee80211_check_dup_link_addrs(sdata); if (!ret) { + /* for keys we will not be able to undo this */ + ieee80211_tear_down_links(sdata, to_free, rem); + + ieee80211_set_vif_links_bitmaps(sdata, new_links); + /* tell the driver */ ret = drv_change_vif_links(sdata->local, sdata, - old_links, new_links, + old_links & old_active, + new_links & sdata->vif.active_links, old); } @@ -209,7 +249,7 @@ static int ieee80211_vif_update_links(struct ieee80211_sub_if_data *sdata, /* restore config */ memcpy(sdata->link, old_data, sizeof(old_data)); memcpy(sdata->vif.link_conf, old, sizeof(old)); - sdata->vif.valid_links = old_links; + ieee80211_set_vif_links_bitmaps(sdata, old_links); /* and free (only) the newly allocated links */ memset(to_free, 0, sizeof(links)); goto free; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 4c8bbf0bd25b..30edac8724d5 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -4043,11 +4043,11 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, goto out; } - sband = ieee80211_get_link_sband(link); - if (!sband) { + if (WARN_ON(!link->conf->chandef.chan)) { ret = false; goto out; } + sband = local->hw.wiphy->bands[link->conf->chandef.chan->band]; if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && (!elems->he_cap || !elems->he_operation)) { @@ -4871,8 +4871,10 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, err = ieee80211_prep_channel(sdata, link, assoc_data->link[link_id].bss, &link->u.mgd.conn_flags); - if (err) + if (err) { + link_info(link, "prep_channel failed\n"); goto out_err; + } } err = ieee80211_mgd_setup_link_sta(link, sta, link_sta, @@ -6876,23 +6878,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) size += req->links[i].elems_len; - if (req->ap_mld_addr) { - for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) { - if (!req->links[i].bss) - continue; - if (i == assoc_link_id) - continue; - /* - * For now, support only a single link in MLO, we - * don't have the necessary parsing of the multi- - * link element in the association response, etc. - */ - sdata_info(sdata, - "refusing MLO association with >1 links\n"); - return -EINVAL; - } - } - assoc_data = kzalloc(size, GFP_KERNEL); if (!assoc_data) return -ENOMEM; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 8b4c6b7abafa..0eed18189491 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2902,7 +2902,7 @@ void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, */ rcu_read_unlock(); - if (WARN_ON_ONCE(!chanctx_conf)) + if (!chanctx_conf) goto unlock; chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, From patchwork Fri Sep 2 14:12:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602375 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 564E2C38145 for ; Fri, 2 Sep 2022 14:51:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236790AbiIBOvf (ORCPT ); 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Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pw-006Ch3-0l; Fri, 02 Sep 2022 16:13:08 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 11/27] wifi: mac80211: add ieee80211_find_sta_by_link_addrs API Date: Fri, 2 Sep 2022 16:12:43 +0200 Message-Id: <20220902161143.c4defb74e10a.Id3b2c4f1ecad9e5b808c19b36658b7bdd46ced29@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Add a new API function ieee80211_find_sta_by_link_addrs() that looks up the STA and link ID based on interface and station link addresses. We're going to use it for mac80211-hwsim to track on the AP side which links are active. Signed-off-by: Johannes Berg --- include/net/mac80211.h | 16 ++++++++++++++++ net/mac80211/sta_info.c | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 53 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 20a2f25a38fa..954cc029a9f9 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -5986,6 +5986,22 @@ struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, const u8 *addr, const u8 *localaddr); +/** + * ieee80211_find_sta_by_link_addrs - find STA by link addresses + * @hw: pointer as obtained from ieee80211_alloc_hw() + * @addr: remote station's link address + * @localaddr: local link address, use %NULL for any (but avoid that) + * @link_id: pointer to obtain the link ID if the STA is found, + * may be %NULL if the link ID is not needed + * + * Obtain the STA by link address, must use RCU protection. + */ +struct ieee80211_sta * +ieee80211_find_sta_by_link_addrs(struct ieee80211_hw *hw, + const u8 *addr, + const u8 *localaddr, + unsigned int *link_id); + /** * ieee80211_sta_block_awake - block station from waking up * @hw: the hardware diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 815ab0cee503..1749c21e735c 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -274,6 +274,43 @@ link_sta_info_get_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr) return NULL; } +struct ieee80211_sta * +ieee80211_find_sta_by_link_addrs(struct ieee80211_hw *hw, + const u8 *addr, + const u8 *localaddr, + unsigned int *link_id) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct link_sta_info *link_sta; + struct rhlist_head *tmp; + + for_each_link_sta_info(local, addr, link_sta, tmp) { + struct sta_info *sta = link_sta->sta; + struct ieee80211_link_data *link; + u8 _link_id = link_sta->link_id; + + if (!localaddr) { + if (link_id) + *link_id = _link_id; + return &sta->sta; + } + + link = rcu_dereference(sta->sdata->link[_link_id]); + if (!link) + continue; + + if (memcmp(link->conf->addr, localaddr, ETH_ALEN)) + continue; + + if (link_id) + *link_id = _link_id; + return &sta->sta; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(ieee80211_find_sta_by_link_addrs); + struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local, const u8 *sta_addr, const u8 *vif_addr) { From patchwork Fri Sep 2 14:12:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602638 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11662ECAAD5 for ; Fri, 2 Sep 2022 14:51:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237196AbiIBOv2 (ORCPT ); Fri, 2 Sep 2022 10:51:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236609AbiIBOvF (ORCPT ); Fri, 2 Sep 2022 10:51:05 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4E84397D55 for ; Fri, 2 Sep 2022 07:13:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=095hDYsDlcTV8evU1aEFxpjTrvn2h/uZJCNm8+1IhlU=; t=1662127990; x=1663337590; b=fxbzBWk1TYYX8IpZnXB/4sFblBLtE7TxcWl+UagvePqXjfa 4Hn8MWoXPcbTWXNMnkUkswYX7N/B8u0WiPKDlcBpRNvC6yRYLQzdjvephwFKeKCuJY0qDpHUDZ1EN v4O0G6B3mv08v4/ps03TmXyNi1ott1rSMNO3xVVbFSzKOxTUXajebBrtB7owpFW/MAIgAmKPtUFX5 ZhZrcDUxZVeH4HwgzPwT9tmygwMA66y3c4Vv5tDLact/YdnW26H8D0dKn3OiczOoMPrm3G1JIUZCm bBuMUcV9LXaZq9dixgnO4wdkgN2SHM32PDx99T5aBKFokyuYdFlhZIIO+5voSx/g==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pw-006Ch3-1Y; Fri, 02 Sep 2022 16:13:08 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 12/27] wifi: mac80211_hwsim: skip inactive links on TX Date: Fri, 2 Sep 2022 16:12:44 +0200 Message-Id: <20220902161143.3489c3850898.I8f77618ccb1a9eaedf3495464a6f8594ccf5112c@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg With the link activation handling in mac80211, skip any inactive links on TX. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index a75420d92816..f17de806a35d 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1735,6 +1735,9 @@ mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data, /* round-robin the available link IDs */ link_id = (sp->last_link + i + 1) % ARRAY_SIZE(vif->link_conf); + if (!(vif->active_links & BIT(link_id))) + continue; + *link_sta = rcu_dereference(sta->link[link_id]); if (!*link_sta) continue; @@ -1743,6 +1746,10 @@ mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data, if (WARN_ON_ONCE(!bss_conf)) continue; + /* can happen while switching links */ + if (!rcu_access_pointer(bss_conf->chanctx_conf)) + continue; + sp->last_link = link_id; return bss_conf; } From patchwork Fri Sep 2 14:12:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602376 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C52EECAAD5 for ; Fri, 2 Sep 2022 14:51:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236609AbiIBOvc (ORCPT ); Fri, 2 Sep 2022 10:51:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33718 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236431AbiIBOvF (ORCPT ); Fri, 2 Sep 2022 10:51:05 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 796249F0F2 for ; Fri, 2 Sep 2022 07:13:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=Qwz7IDFzJHzLEXI55DmhwjOLK18C8Boe99ke3pY++Is=; t=1662127990; x=1663337590; b=tvDnisghHyN8RD9eU9MNrIHqdXMM0ZO3aoPHsn7uW1Oplmb G5KVcCkdh79LlefvhXZAFzUFcEq4BioXh8qGHrv8Bd6hmBnf6oxtPfIS45wlD5duKcNWr2CvZg5fy o32aFwIokcSOYT1dTneNWv5SwD1jvJPR1Zg5RqfAi6sAKc62d77UZBEa0w8G8IA7SeTZKazWL7VRb nH93uFIY/CaFpRbRdCB1ZorxYZ0OyeakYGN2/fxwyqUmiEV/USHxaEIzerOhaBqfgrPp5CJRGzwXI QkMBB9gh47DYeoqbeUADa+5tyrE28PeK8uCavAa+4Zcro3cDHqyXvMfBPzyR7Atg==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pw-006Ch3-2I; Fri, 02 Sep 2022 16:13:08 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 13/27] wifi: mac80211_hwsim: track active STA links Date: Fri, 2 Sep 2022 16:12:45 +0200 Message-Id: <20220902161143.91006e4d67ea.Iefbba1427a3aea30d84f60cacd7cbedaf74d2cdd@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Track the powersave bit on frames where we can look up the STA by link addresses and set the links active or inactive accordingly, and use this information to TX only on links that are actually active in the peer. Note that this doesn't implement powersave fully so if no link is active things will not work right. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 41 +++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index f17de806a35d..b5bc707d8e4e 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -229,6 +229,7 @@ static inline void hwsim_clear_magic(struct ieee80211_vif *vif) struct hwsim_sta_priv { u32 magic; unsigned int last_link; + u16 active_links_rx; }; #define HWSIM_STA_MAGIC 0x6d537749 @@ -1567,6 +1568,29 @@ static void mac80211_hwsim_rx(struct mac80211_hwsim_data *data, struct ieee80211_rx_status *rx_status, struct sk_buff *skb) { + struct ieee80211_hdr *hdr = (void *)skb->data; + + if (!ieee80211_has_morefrags(hdr->frame_control) && + !is_multicast_ether_addr(hdr->addr1) && + (ieee80211_is_mgmt(hdr->frame_control) || + ieee80211_is_data(hdr->frame_control))) { + struct ieee80211_sta *sta; + unsigned int link_id; + + rcu_read_lock(); + sta = ieee80211_find_sta_by_link_addrs(data->hw, hdr->addr2, + hdr->addr1, &link_id); + if (sta) { + struct hwsim_sta_priv *sp = (void *)sta->drv_priv; + + if (ieee80211_has_pm(hdr->frame_control)) + sp->active_links_rx &= ~BIT(link_id); + else + sp->active_links_rx |= BIT(link_id); + } + rcu_read_unlock(); + } + memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status)); mac80211_hwsim_add_vendor_rtap(skb); @@ -1738,6 +1762,9 @@ mac80211_hwsim_select_tx_link(struct mac80211_hwsim_data *data, if (!(vif->active_links & BIT(link_id))) continue; + if (!(sp->active_links_rx & BIT(link_id))) + continue; + *link_sta = rcu_dereference(sta->link[link_id]); if (!*link_sta) continue; @@ -2412,10 +2439,19 @@ static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { + struct hwsim_sta_priv *sp = (void *)sta->drv_priv; + hwsim_check_magic(vif); hwsim_set_sta_magic(sta); mac80211_hwsim_sta_rc_update(hw, vif, sta, 0); + if (sta->valid_links) { + WARN(hweight16(sta->valid_links) > 1, + "expect to add STA with single link, have 0x%x\n", + sta->valid_links); + sp->active_links_rx = sta->valid_links; + } + return 0; } @@ -3037,8 +3073,13 @@ static int mac80211_hwsim_change_sta_links(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u16 old_links, u16 new_links) { + struct hwsim_sta_priv *sp = (void *)sta->drv_priv; + hwsim_check_sta_magic(sta); + if (vif->type == NL80211_IFTYPE_STATION) + sp->active_links_rx = new_links; + return 0; } From patchwork Fri Sep 2 14:12:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602634 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 979BDC54EE9 for ; Fri, 2 Sep 2022 14:51:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236389AbiIBOvn (ORCPT ); Fri, 2 Sep 2022 10:51:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39172 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236065AbiIBOvG (ORCPT ); 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Fri, 02 Sep 2022 16:13:09 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 14/27] wifi: mac80211: mlme: refactor QoS settings code Date: Fri, 2 Sep 2022 16:12:46 +0200 Message-Id: <20220902161143.645481f0d71f.Idd077e09ab35a8eee01d885c4cbdebbd91a5368e@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Refactor the code to apply QoS settings to the driver so we can call it on link switch. Signed-off-by: Johannes Berg --- net/mac80211/ieee80211_i.h | 1 + net/mac80211/mlme.c | 39 +++++++++++++++++++++++++------------- 2 files changed, 27 insertions(+), 13 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index b41c49338cd3..977aea4467e0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1811,6 +1811,7 @@ void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, u8 reason, bool tx); void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); +void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); /* IBSS code */ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 30edac8724d5..bbc62815b067 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2445,6 +2445,29 @@ static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work) ieee80211_sta_handle_tspec_ac_params(sdata); } +void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link) +{ + struct ieee80211_sub_if_data *sdata = link->sdata; + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_tx_queue_params *params = link->tx_conf; + u8 ac; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + mlme_dbg(sdata, + "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n", + ac, params[ac].acm, + params[ac].aifs, params[ac].cw_min, params[ac].cw_max, + params[ac].txop, params[ac].uapsd, + ifmgd->tx_tspec[ac].downgraded); + if (!ifmgd->tx_tspec[ac].downgraded && + drv_conf_tx(local, link, ac, ¶ms[ac])) + link_err(link, + "failed to set TX queue parameters for AC %d\n", + ac); + } +} + /* MLME */ static bool ieee80211_sta_wmm_params(struct ieee80211_local *local, @@ -2576,20 +2599,10 @@ ieee80211_sta_wmm_params(struct ieee80211_local *local, } } - for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { - mlme_dbg(sdata, - "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n", - ac, params[ac].acm, - params[ac].aifs, params[ac].cw_min, params[ac].cw_max, - params[ac].txop, params[ac].uapsd, - ifmgd->tx_tspec[ac].downgraded); + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) link->tx_conf[ac] = params[ac]; - if (!ifmgd->tx_tspec[ac].downgraded && - drv_conf_tx(local, link, ac, ¶ms[ac])) - link_err(link, - "failed to set TX queue parameters for AC %d\n", - ac); - } + + ieee80211_mgd_set_link_qos_params(link); /* enable WMM or activate new settings */ link->conf->qos = true; From patchwork Fri Sep 2 14:12:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602372 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EACFFC38145 for ; Fri, 2 Sep 2022 14:51:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237068AbiIBOvp (ORCPT ); Fri, 2 Sep 2022 10:51:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236186AbiIBOvH (ORCPT ); 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Fri, 02 Sep 2022 16:13:09 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 15/27] wifi: mac80211: extend ieee80211_nullfunc_get() for MLO Date: Fri, 2 Sep 2022 16:12:47 +0200 Message-Id: <20220902161143.5c355f56ae0e.I0dfa6e8c5e2e4f8715aed9e47c4e4ca739c28430@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Add a link_id parameter to ieee80211_nullfunc_get() to be able to obtain a correctly addressed frame. Signed-off-by: Johannes Berg --- drivers/net/wireless/ath/ath9k/channel.c | 2 +- drivers/net/wireless/realtek/rtw88/fw.c | 4 +-- drivers/net/wireless/st/cw1200/sta.c | 4 +-- drivers/net/wireless/ti/wl1251/main.c | 2 +- drivers/net/wireless/ti/wlcore/cmd.c | 4 +-- include/net/mac80211.h | 5 ++- net/mac80211/mlme.c | 5 +-- net/mac80211/tx.c | 43 +++++++++++++++--------- 8 files changed, 43 insertions(+), 26 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c index 6cf087522157..571062f2e82a 100644 --- a/drivers/net/wireless/ath/ath9k/channel.c +++ b/drivers/net/wireless/ath/ath9k/channel.c @@ -1113,7 +1113,7 @@ ath_chanctx_send_vif_ps_frame(struct ath_softc *sc, struct ath_vif *avp, if (!avp->assoc) return false; - skb = ieee80211_nullfunc_get(sc->hw, vif, false); + skb = ieee80211_nullfunc_get(sc->hw, vif, -1, false); if (!skb) return false; diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c index babba68a7132..7f6fdebae203 100644 --- a/drivers/net/wireless/realtek/rtw88/fw.c +++ b/drivers/net/wireless/realtek/rtw88/fw.c @@ -1082,10 +1082,10 @@ static struct sk_buff *rtw_get_rsvd_page_skb(struct ieee80211_hw *hw, skb_new = ieee80211_proberesp_get(hw, vif); break; case RSVD_NULL: - skb_new = ieee80211_nullfunc_get(hw, vif, false); + skb_new = ieee80211_nullfunc_get(hw, vif, -1, false); break; case RSVD_QOS_NULL: - skb_new = ieee80211_nullfunc_get(hw, vif, true); + skb_new = ieee80211_nullfunc_get(hw, vif, -1, true); break; case RSVD_LPS_PG_DPK: skb_new = rtw_lps_pg_dpk_get(hw); diff --git a/drivers/net/wireless/st/cw1200/sta.c b/drivers/net/wireless/st/cw1200/sta.c index 26d3614519b1..8ef1d06b9bbd 100644 --- a/drivers/net/wireless/st/cw1200/sta.c +++ b/drivers/net/wireless/st/cw1200/sta.c @@ -195,7 +195,7 @@ void __cw1200_cqm_bssloss_sm(struct cw1200_common *priv, priv->bss_loss_state++; - skb = ieee80211_nullfunc_get(priv->hw, priv->vif, false); + skb = ieee80211_nullfunc_get(priv->hw, priv->vif, -1, false); WARN_ON(!skb); if (skb) cw1200_tx(priv->hw, NULL, skb); @@ -2263,7 +2263,7 @@ static int cw1200_upload_null(struct cw1200_common *priv) .rate = 0xFF, }; - frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif, false); + frame.skb = ieee80211_nullfunc_get(priv->hw, priv->vif,-1, false); if (!frame.skb) return -ENOMEM; diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c index 9144ef5538a8..289371689a8d 100644 --- a/drivers/net/wireless/ti/wl1251/main.c +++ b/drivers/net/wireless/ti/wl1251/main.c @@ -546,7 +546,7 @@ static int wl1251_build_null_data(struct wl1251 *wl) size = sizeof(struct wl12xx_null_data_template); ptr = NULL; } else { - skb = ieee80211_nullfunc_get(wl->hw, wl->vif, false); + skb = ieee80211_nullfunc_get(wl->hw, wl->vif, -1, false); if (!skb) goto out; size = skb->len; diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c index 138edd28b0de..a939fd89a7f5 100644 --- a/drivers/net/wireless/ti/wlcore/cmd.c +++ b/drivers/net/wireless/ti/wlcore/cmd.c @@ -1065,7 +1065,7 @@ int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif) } else { skb = ieee80211_nullfunc_get(wl->hw, wl12xx_wlvif_to_vif(wlvif), - false); + -1, false); if (!skb) goto out; size = skb->len; @@ -1092,7 +1092,7 @@ int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl, struct sk_buff *skb = NULL; int ret = -ENOMEM; - skb = ieee80211_nullfunc_get(wl->hw, vif, false); + skb = ieee80211_nullfunc_get(wl->hw, vif,-1, false); if (!skb) goto out; diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 954cc029a9f9..bfa6a1625c5c 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -5298,6 +5298,9 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw, * ieee80211_nullfunc_get - retrieve a nullfunc template * @hw: pointer obtained from ieee80211_alloc_hw(). * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * @link_id: If the vif is an MLD, get a frame with the link addresses + * for the given link ID. For a link_id < 0 you get a frame with + * MLD addresses, however useful that might be. * @qos_ok: QoS NDP is acceptable to the caller, this should be set * if at all possible * @@ -5315,7 +5318,7 @@ struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw, */ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - bool qos_ok); + int link_id, bool qos_ok); /** * ieee80211_probereq_get - retrieve a Probe Request template diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index bbc62815b067..bf883f2e6de3 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1546,8 +1546,9 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, struct ieee80211_hdr_3addr *nullfunc; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, - !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP)); + skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, -1, + !ieee80211_hw_check(&local->hw, + DOESNT_SUPPORT_QOS_NDP)); if (!skb) return; diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 51d564c8742b..30293e49e444 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -5469,33 +5469,39 @@ EXPORT_SYMBOL(ieee80211_pspoll_get); struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - bool qos_ok) + int link_id, bool qos_ok) { + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_link_data *link = NULL; struct ieee80211_hdr_3addr *nullfunc; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_local *local; struct sk_buff *skb; bool qos = false; if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) return NULL; - sdata = vif_to_sdata(vif); - local = sdata->local; + skb = dev_alloc_skb(local->hw.extra_tx_headroom + + sizeof(*nullfunc) + 2); + if (!skb) + return NULL; + rcu_read_lock(); if (qos_ok) { struct sta_info *sta; - rcu_read_lock(); - sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid); + sta = sta_info_get(sdata, vif->cfg.ap_addr); qos = sta && sta->sta.wme; - rcu_read_unlock(); } - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*nullfunc) + 2); - if (!skb) - return NULL; + if (link_id >= 0) { + link = rcu_dereference(sdata->link[link_id]); + if (WARN_ON_ONCE(!link)) { + rcu_read_unlock(); + kfree_skb(skb); + return NULL; + } + } skb_reserve(skb, local->hw.extra_tx_headroom); @@ -5516,9 +5522,16 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw, skb_put_data(skb, &qoshdr, sizeof(qoshdr)); } - memcpy(nullfunc->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN); - memcpy(nullfunc->addr2, vif->addr, ETH_ALEN); - memcpy(nullfunc->addr3, sdata->deflink.u.mgd.bssid, ETH_ALEN); + if (link) { + memcpy(nullfunc->addr1, link->conf->bssid, ETH_ALEN); + memcpy(nullfunc->addr2, link->conf->addr, ETH_ALEN); + memcpy(nullfunc->addr3, link->conf->bssid, ETH_ALEN); + } else { + memcpy(nullfunc->addr1, vif->cfg.ap_addr, ETH_ALEN); + memcpy(nullfunc->addr2, vif->addr, ETH_ALEN); + memcpy(nullfunc->addr3, vif->cfg.ap_addr, ETH_ALEN); + } + rcu_read_unlock(); return skb; } From patchwork Fri Sep 2 14:12:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602373 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0DA10ECAAD5 for ; Fri, 2 Sep 2022 14:51:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236508AbiIBOvl (ORCPT ); Fri, 2 Sep 2022 10:51:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33800 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236995AbiIBOvG (ORCPT ); Fri, 2 Sep 2022 10:51:06 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88FDF54CB4 for ; Fri, 2 Sep 2022 07:13:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=LQITI4s8B3FApvbu+3r828hGRyAymW8FVqoTB6EJHm4=; t=1662127991; x=1663337591; b=tPFESsygphgJ4gJGIp+CZydjdeg0Kvu/QFmeAq4/ntEda84 AmrTV6XYiUk6FPsfDMJNi42vGj4Y4SD4utyvEGlFpU+z+Vv9VgvAUOTRf6feKpvm9kcdlHi0/KY9V dceAnAYSsovLT7oTxrG28UZysHYbj0+rm4BKUcoerDMGg4qBARLmbXzBjuRtqgCVfdSN5Kg0zki8d nEw3WhNCAVUOpocgF4iRacBUpHO4cLhSDLG78HdKygMTe/ESEdRU9wGMToUglLusqJKt2+TPR2DLs gPwylSAMGh7sAdJnBOPNt1xd6UOW+p3vrlb6Nu4IYGvpef1ahJcxde81TS27VvnA==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Px-006Ch3-1a; Fri, 02 Sep 2022 16:13:09 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 16/27] wifi: mac80211_hwsim: send NDP for link (de)activation Date: Fri, 2 Sep 2022 16:12:48 +0200 Message-Id: <20220902161143.426a1e56732c.I1755040c1c9adcc60358cb21e03ffee246117547@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg In hwsim we now track when we receive NDP (or other frames carrying a PM bit) to see if a link should be active, but then of course we also need to transmit NDPs to at least set a link to inactive when we deacivate it. Implement that as well as sending an NDP when we activate a link, which allows receiving frames before transmitting any. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 28 +++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index b5bc707d8e4e..18339a56316d 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2966,6 +2966,18 @@ static int mac80211_hwsim_assign_vif_chanctx(struct ieee80211_hw *hw, hwsim_check_magic(vif); hwsim_check_chanctx_magic(ctx); + /* if we activate a link while already associated wake it up */ + if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) { + struct sk_buff *skb; + + skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true); + if (skb) { + local_bh_disable(); + mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan); + local_bh_enable(); + } + } + return 0; } @@ -2976,6 +2988,22 @@ static void mac80211_hwsim_unassign_vif_chanctx(struct ieee80211_hw *hw, { hwsim_check_magic(vif); hwsim_check_chanctx_magic(ctx); + + /* if we deactivate a link while associated suspend it first */ + if (vif->type == NL80211_IFTYPE_STATION && vif->cfg.assoc) { + struct sk_buff *skb; + + skb = ieee80211_nullfunc_get(hw, vif, link_conf->link_id, true); + if (skb) { + struct ieee80211_hdr *hdr = (void *)skb->data; + + hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); + + local_bh_disable(); + mac80211_hwsim_tx_frame(hw, skb, ctx->def.chan); + local_bh_enable(); + } + } } static const char mac80211_hwsim_gstrings_stats[][ETH_GSTRING_LEN] = { From patchwork Fri Sep 2 14:12:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602635 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C4FFC6FA85 for ; Fri, 2 Sep 2022 14:51:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237218AbiIBOvk (ORCPT ); Fri, 2 Sep 2022 10:51:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36112 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236993AbiIBOvG (ORCPT ); Fri, 2 Sep 2022 10:51:06 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 890AB60530 for ; Fri, 2 Sep 2022 07:13:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=TAWFtVhWDoDPRB6e3NDtIsgHfTgRF1yu5K9h2Y6oZ3s=; t=1662127991; x=1663337591; b=i2e8vZnAb+yuSVDW/9mgb4OtuiGzK599tFmA/Xbja0JL+Yt hOVqwoU8W1UWDx+569FAAkRBrPy2PExblC1DcVPgaQvDi6S1ajc+stG2EXdI/h/rk77DWd5LmXLAI NwQaKlG9sLXOI9KCwYG91lnMd3DosAFDHQL0dAWSgyUuMFei8cnCWUkmXov9oyeDRE0CFT6DYiqvb 0YCu9AxpdKk1dMIDw31kckLyJuJmtORvf8QJNTxX3Lo8PCPZg2az0F15wY0CxSTZxGVDrHsgvvsfH BBDSpb0OHBUd4tZsK1vE/aOayz6lSpL9S6gehY0Kh3WtU2Bsb/tBoBWcMDmbcppw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Px-006Ch3-2W; Fri, 02 Sep 2022 16:13:09 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 17/27] wifi: mac80211_hwsim: fix multi-channel handling in netlink RX Date: Fri, 2 Sep 2022 16:12:49 +0200 Message-Id: <20220902161143.1b89d6566aa0.I01840ac7f950f5c06d5dac6c999d907dd9f7902a@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg In netlink RX, now that we can actually have multiple channel contexts for MLO, things don't work well as we only keep a single pointer, and then on link switching we might NULL it, and hit the return if the channel is NULL. However, we already use mac80211_hwsim_tx_iter() which deals with all this, so remove the test and adjust the remaining code a bit. This then means we no longer use the chanctx pointer, so remove it as well. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 26 ++++---------------------- 1 file changed, 4 insertions(+), 22 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 18339a56316d..f464d3507fe9 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -653,7 +653,6 @@ struct mac80211_hwsim_data { u32 ciphers[ARRAY_SIZE(hwsim_ciphers)]; struct mac_address addresses[2]; - struct ieee80211_chanctx_conf *chanctx; int channels, idx; bool use_chanctx; bool destroy_on_close; @@ -2913,11 +2912,6 @@ static int mac80211_hwsim_croc(struct ieee80211_hw *hw, static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *ctx) { - struct mac80211_hwsim_data *hwsim = hw->priv; - - mutex_lock(&hwsim->mutex); - hwsim->chanctx = ctx; - mutex_unlock(&hwsim->mutex); hwsim_set_chanctx_magic(ctx); wiphy_dbg(hw->wiphy, "add channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n", @@ -2929,11 +2923,6 @@ static int mac80211_hwsim_add_chanctx(struct ieee80211_hw *hw, static void mac80211_hwsim_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *ctx) { - struct mac80211_hwsim_data *hwsim = hw->priv; - - mutex_lock(&hwsim->mutex); - hwsim->chanctx = NULL; - mutex_unlock(&hwsim->mutex); wiphy_dbg(hw->wiphy, "remove channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n", ctx->def.chan->center_freq, ctx->def.width, @@ -2946,11 +2935,6 @@ static void mac80211_hwsim_change_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *ctx, u32 changed) { - struct mac80211_hwsim_data *hwsim = hw->priv; - - mutex_lock(&hwsim->mutex); - hwsim->chanctx = ctx; - mutex_unlock(&hwsim->mutex); hwsim_check_chanctx_magic(ctx); wiphy_dbg(hw->wiphy, "change channel context control: %d MHz/width: %d/cfreqs:%d/%d MHz\n", @@ -4354,7 +4338,6 @@ static int mac80211_hwsim_new_radio(struct genl_info *info, hw->wiphy->max_remain_on_channel_duration = 1000; data->if_combination.radar_detect_widths = 0; data->if_combination.num_different_channels = data->channels; - data->chanctx = NULL; } else { data->if_combination.num_different_channels = 1; data->if_combination.radar_detect_widths = @@ -4929,13 +4912,9 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, if (data2->use_chanctx) { if (data2->tmp_chan) channel = data2->tmp_chan; - else if (data2->chanctx) - channel = data2->chanctx->def.chan; } else { channel = data2->channel; } - if (!channel) - goto out; if (!hwsim_virtio_enabled) { if (hwsim_net_get_netgroup(genl_info_net(info)) != @@ -4966,6 +4945,7 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, rx_status.freq); if (!iter_data.channel) goto out; + rx_status.band = iter_data.channel->band; mutex_lock(&data2->mutex); if (!hwsim_chans_compat(iter_data.channel, channel)) { @@ -4978,11 +4958,13 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, } } mutex_unlock(&data2->mutex); + } else if (!channel) { + goto out; } else { rx_status.freq = channel->center_freq; + rx_status.band = channel->band; } - rx_status.band = channel->band; rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]); rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); From patchwork Fri Sep 2 14:12:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602633 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 15F65C54EE9 for ; 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Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Py-006Ch3-05; Fri, 02 Sep 2022 16:13:10 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 18/27] wifi: nl80211: add MLD address to assoc BSS entries Date: Fri, 2 Sep 2022 16:12:50 +0200 Message-Id: <20220902161143.b3b872cec2e1.Ib53e526afe083c823df54903ce334002a9c27b64@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Add an MLD address attribute to BSS entries that the interface is currently associated with to help userspace figure out what's going on. Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 2 ++ net/wireless/nl80211.c | 6 ++++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 573db20403dc..ac31fbd84402 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -4959,6 +4959,7 @@ enum nl80211_bss_scan_width { * using the nesting index as the antenna number. * @NL80211_BSS_FREQUENCY_OFFSET: frequency offset in KHz * @NL80211_BSS_MLO_LINK_ID: MLO link ID of the BSS (u8). + * @NL80211_BSS_MLD_ADDR: MLD address of this BSS if connected to it. * @__NL80211_BSS_AFTER_LAST: internal * @NL80211_BSS_MAX: highest BSS attribute */ @@ -4985,6 +4986,7 @@ enum nl80211_bss { NL80211_BSS_CHAIN_SIGNAL, NL80211_BSS_FREQUENCY_OFFSET, NL80211_BSS_MLO_LINK_ID, + NL80211_BSS_MLD_ADDR, /* keep last */ __NL80211_BSS_AFTER_LAST, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index dad88d231d56..8ab4c907e284 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -10182,8 +10182,10 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, (nla_put_u32(msg, NL80211_BSS_STATUS, NL80211_BSS_STATUS_ASSOCIATED) || (wdev->valid_links && - nla_put_u8(msg, NL80211_BSS_MLO_LINK_ID, - link_id)))) + (nla_put_u8(msg, NL80211_BSS_MLO_LINK_ID, + link_id) || + nla_put(msg, NL80211_BSS_MLD_ADDR, ETH_ALEN, + wdev->u.client.connected_addr))))) goto nla_put_failure; } break; From patchwork Fri Sep 2 14:12:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602371 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70F23C38145 for ; Fri, 2 Sep 2022 14:51:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236037AbiIBOvr (ORCPT ); Fri, 2 Sep 2022 10:51:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33448 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236277AbiIBOvH (ORCPT ); Fri, 2 Sep 2022 10:51:07 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F9507269B for ; Fri, 2 Sep 2022 07:13:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=XUUgvV9lcE4V8T0asYtoaM4o40lQDnW9AZ3b9btMzn4=; t=1662127992; x=1663337592; b=sNGwT/HmzYcWbUgYAnxiecif9UUd38sBNBmX4+TLvovTYCL kpRcsgjpuE2/L++06PfpuaOxXdVFuERS5sG+wqI2diD/pHVoVw45nMyv0WNm7hrmbDcAEJtcXyQMu uI1K+OhzsQo4mo5cxWHNZ/C5F0aWjuZjqNXiZHbB5nohOT5QdmLaWkC2VAX6K6EcUahG98w5PDOkl cWuSpfbNPq1Xr2a+8/GZeA8okqzwOmVK6kTa2d7GGrNbmrfM4Smfue/AMUgsrA72T8wcaTH7AjeY7 DHKNvh9oADWIoWLSp77mWSISUJ+a9W0PAWEo8SuBqipDod8qWJwN/mOzuUXy6y0A==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Py-006Ch3-0v; Fri, 02 Sep 2022 16:13:10 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 19/27] wifi: mac80211: call drv_sta_state() under sdata_lock() in reconfig Date: Fri, 2 Sep 2022 16:12:51 +0200 Message-Id: <20220902161143.6f0d7eaf8ef2.I1fb12610d109f47a09f859b8faf653b643e8b9b4@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Currently, other paths calling drv_sta_state() hold the mutex and therefore drivers can assume that, and look at links with that protection. Fix that for the reconfig path as well; to do it more easily use ieee80211_reconfig_stations() for the AP/AP_VLAN station reconfig as well. Signed-off-by: Johannes Berg --- net/mac80211/util.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 0eed18189491..0ea5d50091dc 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -2530,7 +2530,6 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (link) ieee80211_assign_chanctx(local, sdata, link); } - sdata_unlock(sdata); switch (sdata->vif.type) { case NL80211_IFTYPE_AP_VLAN: @@ -2549,6 +2548,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) &sdata->deflink.tx_conf[i]); break; } + sdata_unlock(sdata); /* common change flags for all interface types */ changed = BSS_CHANGED_ERP_CTS_PROT | @@ -2657,23 +2657,21 @@ int ieee80211_reconfig(struct ieee80211_local *local) } /* APs are now beaconing, add back stations */ - mutex_lock(&local->sta_mtx); - list_for_each_entry(sta, &local->sta_list, list) { - enum ieee80211_sta_state state; - - if (!sta->uploaded) - continue; - - if (sta->sdata->vif.type != NL80211_IFTYPE_AP && - sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) + list_for_each_entry(sdata, &local->interfaces, list) { + if (!ieee80211_sdata_running(sdata)) continue; - for (state = IEEE80211_STA_NOTEXIST; - state < sta->sta_state; state++) - WARN_ON(drv_sta_state(local, sta->sdata, sta, state, - state + 1)); + sdata_lock(sdata); + switch (sdata->vif.type) { + case NL80211_IFTYPE_AP_VLAN: + case NL80211_IFTYPE_AP: + ieee80211_reconfig_stations(sdata); + break; + default: + break; + } + sdata_unlock(sdata); } - mutex_unlock(&local->sta_mtx); /* add back keys */ list_for_each_entry(sdata, &local->interfaces, list) From patchwork Fri Sep 2 14:12:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602370 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41AA3C54EE9 for ; Fri, 2 Sep 2022 14:51:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236060AbiIBOvu (ORCPT ); Fri, 2 Sep 2022 10:51:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236601AbiIBOvH (ORCPT ); Fri, 2 Sep 2022 10:51:07 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31461844C5 for ; Fri, 2 Sep 2022 07:13:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=JoRpIaSn/yg/bA5m9ebBTAxMk8IJhCEFeuk66bpZOtA=; t=1662127992; x=1663337592; b=StW75uXcB/Naef5kAkbSdzAtM4yCDruHbFmPVQvVYq2nMnX q90X0v49j9pHpfEAoOnzRzJYjHfnRTri/OG49twr8WLmFwmu+yLy9Hz965SZGXGfnTOTQk3lHzQRX ZpO0CvjMoZIpb2z+dzeab6hPJCun/VH0eSABF4Uoi8pOo1hBaa0fGmnLGZkaClcIMJ+RIYfG1bxva dWg10eBF5e6gZeQLXAzlYVUFHcgHV7ZOeiT6burW994+s0HHx51wZKcxTrfD2w2yHD9Mw/fkpJqF2 TCNcT5mhCDzudHA99REXErjG5Kn0DbB6UQZAnORGNfsv+BApGR9rtWp38id+0Qcw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Py-006Ch3-1l; Fri, 02 Sep 2022 16:13:10 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 20/27] wifi: mac80211: add vif/sta link RCU dereference macros Date: Fri, 2 Sep 2022 16:12:52 +0200 Message-Id: <20220902161143.310be75ff36d.Iefc3fac151a2f5df338b68ed73d03559a8373b55@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Add macros (and an exported function) to allow checking some link RCU protected accesses that are happening in callbacks from mac80211 and are thus under the correct lock. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 3 +-- include/net/mac80211.h | 31 ++++++++++++++++++++++++--- net/mac80211/sta_info.c | 10 +++++++++ 3 files changed, 39 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index f464d3507fe9..f044db1621dd 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3069,8 +3069,7 @@ static int mac80211_hwsim_change_vif_links(struct ieee80211_hw *hw, for_each_set_bit(i, &add, IEEE80211_MLD_MAX_NUM_LINKS) { struct ieee80211_bss_conf *link_conf; - /* FIXME: figure out how to get the locking here */ - link_conf = rcu_dereference_protected(vif->link_conf[i], 1); + link_conf = link_conf_dereference_protected(vif, i); if (WARN_ON(!link_conf)) continue; diff --git a/include/net/mac80211.h b/include/net/mac80211.h index bfa6a1625c5c..d9e7f62cc972 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -1901,6 +1902,19 @@ struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev); */ struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif); +/** + * lockdep_vif_mutex_held - for lockdep checks on link poiners + * @vif: the interface to check + */ +static inline bool lockdep_vif_mutex_held(struct ieee80211_vif *vif) +{ + return lockdep_is_held(&ieee80211_vif_to_wdev(vif)->mtx); +} + +#define link_conf_dereference_protected(vif, link_id) \ + rcu_dereference_protected((vif)->link_conf[link_id], \ + lockdep_vif_mutex_held(vif)) + /** * enum ieee80211_key_flags - key flags * @@ -2266,13 +2280,24 @@ struct ieee80211_sta { u8 drv_priv[] __aligned(sizeof(void *)); }; -/* FIXME: check the locking correctly */ +#ifdef CONFIG_LOCKDEP +bool lockdep_sta_mutex_held(struct ieee80211_sta *pubsta); +#else +static inline bool lockdep_sta_mutex_held(struct ieee80211_sta *pubsta) +{ + return true; +} +#endif + +#define link_sta_dereference_protected(sta, link_id) \ + rcu_dereference_protected((sta)->link[link_id], \ + lockdep_sta_mutex_held(sta)) + #define for_each_sta_active_link(vif, sta, link_sta, link_id) \ for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) \ if ((!(vif)->active_links || \ (vif)->active_links & BIT(link_id)) && \ - ((link_sta) = rcu_dereference_protected((sta)->link[link_id],\ - 1))) + ((link_sta) = link_sta_dereference_protected(sta, link_id))) /** * enum sta_notify_cmd - sta notify command diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 1749c21e735c..baa55fbab0a2 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -2871,3 +2871,13 @@ void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta, if (val) sta->sta.max_amsdu_subframes = 4 << val; } + +#ifdef CONFIG_LOCKDEP +bool lockdep_sta_mutex_held(struct ieee80211_sta *pubsta) +{ + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + + return lockdep_is_held(&sta->local->sta_mtx); +} +EXPORT_SYMBOL(lockdep_sta_mutex_held); +#endif From patchwork Fri Sep 2 14:12:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602632 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CE108ECAAD5 for ; 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Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Py-006Ch3-2o; Fri, 02 Sep 2022 16:13:10 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 21/27] wifi: mac80211: set up beacon timing config on links Date: Fri, 2 Sep 2022 16:12:53 +0200 Message-Id: <20220902161143.b3ab2553538c.I47c496386723d852da80f17e8b504a97176aa696@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg On secondary MLO links, I forgot to set the beacon interval and DTIM period, fix that. Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 83 +++++++++++++++++++++++++-------------------- 1 file changed, 47 insertions(+), 36 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index bf883f2e6de3..8a2237106002 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -4819,6 +4819,40 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, return ret; } +static bool ieee80211_get_dtim(const struct cfg80211_bss_ies *ies, + u8 *dtim_count, u8 *dtim_period) +{ + const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); + const u8 *idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, ies->data, + ies->len); + const struct ieee80211_tim_ie *tim = NULL; + const struct ieee80211_bssid_index *idx; + bool valid = tim_ie && tim_ie[1] >= 2; + + if (valid) + tim = (void *)(tim_ie + 2); + + if (dtim_count) + *dtim_count = valid ? tim->dtim_count : 0; + + if (dtim_period) + *dtim_period = valid ? tim->dtim_period : 0; + + /* Check if value is overridden by non-transmitted profile */ + if (!idx_ie || idx_ie[1] < 3) + return valid; + + idx = (void *)(idx_ie + 2); + + if (dtim_count) + *dtim_count = idx->dtim_count; + + if (dtim_period) + *dtim_period = idx->dtim_period; + + return true; +} + static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, struct ieee802_11_elems *elems, @@ -4882,8 +4916,19 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, goto out_err; if (link_id != assoc_data->assoc_link_id) { - err = ieee80211_prep_channel(sdata, link, - assoc_data->link[link_id].bss, + struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; + const struct cfg80211_bss_ies *ies; + + rcu_read_lock(); + ies = rcu_dereference(cbss->ies); + ieee80211_get_dtim(ies, + &link->conf->sync_dtim_count, + &link->u.mgd.dtim_period); + link->conf->dtim_period = link->u.mgd.dtim_period ?: 1; + link->conf->beacon_int = cbss->beacon_interval; + rcu_read_unlock(); + + err = ieee80211_prep_channel(sdata, link, cbss, &link->u.mgd.conn_flags); if (err) { link_info(link, "prep_channel failed\n"); @@ -6356,40 +6401,6 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) rcu_read_unlock(); } -static bool ieee80211_get_dtim(const struct cfg80211_bss_ies *ies, - u8 *dtim_count, u8 *dtim_period) -{ - const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); - const u8 *idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, ies->data, - ies->len); - const struct ieee80211_tim_ie *tim = NULL; - const struct ieee80211_bssid_index *idx; - bool valid = tim_ie && tim_ie[1] >= 2; - - if (valid) - tim = (void *)(tim_ie + 2); - - if (dtim_count) - *dtim_count = valid ? tim->dtim_count : 0; - - if (dtim_period) - *dtim_period = valid ? tim->dtim_period : 0; - - /* Check if value is overridden by non-transmitted profile */ - if (!idx_ie || idx_ie[1] < 3) - return valid; - - idx = (void *)(idx_ie + 2); - - if (dtim_count) - *dtim_count = idx->dtim_count; - - if (dtim_period) - *dtim_period = idx->dtim_period; - - return true; -} - static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, struct cfg80211_bss *cbss, s8 link_id, const u8 *ap_mld_addr, bool assoc, From patchwork Fri Sep 2 14:12:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602631 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D694C38145 for ; Fri, 2 Sep 2022 14:51:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236262AbiIBOvw (ORCPT ); Fri, 2 Sep 2022 10:51:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236616AbiIBOvI (ORCPT ); Fri, 2 Sep 2022 10:51:08 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB1E6C6FD7 for ; Fri, 2 Sep 2022 07:13:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=5sk+Itf1fnEMKszgG7vP2dkjPuQYah+bA9RumNHZLzI=; t=1662127993; x=1663337593; b=h1JvJD49ejdAyzlNVZe4Fch2wORnL/rZ1DoLETmCd9nrCle rKvihSb+yPiVJ0W+U3sj+kM/1nLtV8sPXgJg1UeR1X59POFpcfD299aHJgXzFlp2ktny3CNPNsRGd 59Y+GNgq0m6weyvnJ06BUfiROaNcTHEelTKrCaopEtRhLbHwocBsR52bIdV2K0fDbq7CqLmRL42lv vBPfSw9wVS4Qh8fqs22romPOHmP1CDtkqtRFNbGNm5Jx/3rZAO5WaAK+nAbJgo8yWvbNOhOcCD/bM 2mT6GnzDHP7Zs6z357aoVwq6pIofbMmIqZwo4/2f33wt/IOIQnnMLODrz060lFbw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pz-006Ch3-0R; Fri, 02 Sep 2022 16:13:11 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Benjamin Berg Subject: [PATCH 22/27] wifi: mac80211: keep A-MSDU data in sta and per-link Date: Fri, 2 Sep 2022 16:12:54 +0200 Message-Id: <20220902161143.37f209bdbe55.I997eff261b7279f54c9e39b848160aa59c0fccd2@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Benjamin Berg The A-MSDU data needs to be stored per-link and aggregated into a single value for the station. Add a new struct ieee_80211_sta_aggregates in order to store this data and a new function ieee80211_sta_recalc_aggregates to update the current data for the STA. Note that in the non MLO case the pointer in ieee80211_sta will directly reference the data in deflink.agg, which means that recalculation may be skipped in that case. Signed-off-by: Benjamin Berg Signed-off-by: Johannes Berg --- .../net/wireless/intel/iwlwifi/mvm/debugfs.c | 14 ++-- .../net/wireless/intel/iwlwifi/mvm/mac80211.c | 2 +- .../net/wireless/intel/iwlwifi/mvm/rs-fw.c | 12 ++-- drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 15 ++-- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 2 +- .../wireless/mediatek/mt76/mt76_connac_mcu.c | 4 +- .../net/wireless/mediatek/mt76/mt7915/mcu.c | 4 +- drivers/net/wireless/realtek/rtw88/fw.c | 2 +- drivers/net/wireless/realtek/rtw89/debug.c | 2 +- drivers/net/wireless/realtek/rtw89/phy.c | 4 +- include/net/mac80211.h | 68 +++++++++++++------ net/mac80211/he.c | 8 ++- net/mac80211/ht.c | 6 +- net/mac80211/rc80211_minstrel_ht.c | 3 +- net/mac80211/sta_info.c | 50 +++++++++++++- net/mac80211/sta_info.h | 3 + net/mac80211/tx.c | 10 +-- net/mac80211/vht.c | 8 ++- 18 files changed, 152 insertions(+), 65 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index c0bd697b080a..1e8123140973 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -430,14 +430,16 @@ static ssize_t iwl_dbgfs_amsdu_len_write(struct ieee80211_sta *sta, return -EBUSY; if (amsdu_len) { - mvmsta->orig_amsdu_len = sta->max_amsdu_len; - sta->max_amsdu_len = amsdu_len; - for (i = 0; i < ARRAY_SIZE(sta->max_tid_amsdu_len); i++) - sta->max_tid_amsdu_len[i] = amsdu_len; + mvmsta->orig_amsdu_len = sta->cur->max_amsdu_len; + sta->deflink.agg.max_amsdu_len = amsdu_len; + sta->deflink.agg.max_amsdu_len = amsdu_len; + for (i = 0; i < ARRAY_SIZE(sta->deflink.agg.max_tid_amsdu_len); i++) + sta->deflink.agg.max_tid_amsdu_len[i] = amsdu_len; } else { - sta->max_amsdu_len = mvmsta->orig_amsdu_len; + sta->deflink.agg.max_amsdu_len = mvmsta->orig_amsdu_len; mvmsta->orig_amsdu_len = 0; } + return count; } @@ -451,7 +453,7 @@ static ssize_t iwl_dbgfs_amsdu_len_read(struct file *file, char buf[32]; int pos; - pos = scnprintf(buf, sizeof(buf), "current %d ", sta->max_amsdu_len); + pos = scnprintf(buf, sizeof(buf), "current %d ", sta->cur->max_amsdu_len); pos += scnprintf(buf + pos, sizeof(buf) - pos, "stored %d\n", mvmsta->orig_amsdu_len); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 5eb28f8ee87e..df0793882f1d 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -3193,7 +3193,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, NL80211_TDLS_SETUP); } - sta->max_rc_amsdu_len = 1; + sta->deflink.agg.max_rc_amsdu_len = 1; } else if (old_state == IEEE80211_STA_NONE && new_state == IEEE80211_STA_AUTH) { /* diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c index 752d44d96163..2e9081cb6627 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c @@ -340,9 +340,9 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, u16 size = le32_to_cpu(notif->amsdu_size); int i; - if (sta->max_amsdu_len < size) { + if (sta->deflink.agg.max_amsdu_len < size) { /* - * In debug sta->max_amsdu_len < size + * In debug sta->deflink.agg.max_amsdu_len < size * so also check with orig_amsdu_len which holds the * original data before debugfs changed the value */ @@ -352,18 +352,18 @@ void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, mvmsta->amsdu_enabled = le32_to_cpu(notif->amsdu_enabled); mvmsta->max_amsdu_len = size; - sta->max_rc_amsdu_len = mvmsta->max_amsdu_len; + sta->deflink.agg.max_rc_amsdu_len = mvmsta->max_amsdu_len; for (i = 0; i < IWL_MAX_TID_COUNT; i++) { if (mvmsta->amsdu_enabled & BIT(i)) - sta->max_tid_amsdu_len[i] = + sta->deflink.agg.max_tid_amsdu_len[i] = iwl_mvm_max_amsdu_size(mvm, sta, i); else /* * Not so elegant, but this will effectively * prevent AMSDU on this TID */ - sta->max_tid_amsdu_len[i] = 1; + sta->deflink.agg.max_tid_amsdu_len[i] = 1; } IWL_DEBUG_RATE(mvm, @@ -450,7 +450,7 @@ void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, * since TLC offload works with one mode we can assume * that only vht/ht is used and also set it as station max amsdu */ - sta->max_amsdu_len = max_amsdu_len; + sta->deflink.agg.max_amsdu_len = max_amsdu_len; cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(DATA_PATH_GROUP, diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c index 814a5e8f3666..0b50b816684a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -1491,7 +1491,7 @@ static void rs_set_amsdu_len(struct iwl_mvm *mvm, struct ieee80211_sta *sta, struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); int i; - sta->max_amsdu_len = rs_fw_get_max_amsdu_len(sta); + sta->deflink.agg.max_amsdu_len = rs_fw_get_max_amsdu_len(sta); /* * In case TLC offload is not active amsdu_enabled is either 0xFFFF @@ -1506,22 +1506,23 @@ static void rs_set_amsdu_len(struct iwl_mvm *mvm, struct ieee80211_sta *sta, if (mvmsta->vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) - mvmsta->max_amsdu_len = sta->max_amsdu_len; + mvmsta->max_amsdu_len = sta->deflink.agg.max_amsdu_len; else - mvmsta->max_amsdu_len = min_t(int, sta->max_amsdu_len, 8500); + mvmsta->max_amsdu_len = + min_t(int, sta->deflink.agg.max_amsdu_len, 8500); - sta->max_rc_amsdu_len = mvmsta->max_amsdu_len; + sta->deflink.agg.max_rc_amsdu_len = mvmsta->max_amsdu_len; for (i = 0; i < IWL_MAX_TID_COUNT; i++) { if (mvmsta->amsdu_enabled) - sta->max_tid_amsdu_len[i] = + sta->deflink.agg.max_tid_amsdu_len[i] = iwl_mvm_max_amsdu_size(mvm, sta, i); else /* * Not so elegant, but this will effectively * prevent AMSDU on this TID */ - sta->max_tid_amsdu_len[i] = 1; + sta->deflink.agg.max_tid_amsdu_len[i] = 1; } } @@ -2933,7 +2934,7 @@ static void rs_drv_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lq_sta->lq.sta_id = mvmsta->sta_id; mvmsta->amsdu_enabled = 0; - mvmsta->max_amsdu_len = sta->max_amsdu_len; + mvmsta->max_amsdu_len = sta->cur->max_amsdu_len; for (j = 0; j < LQ_SIZE; j++) rs_rate_scale_clear_tbl_windows(mvm, &lq_sta->lq_info[j]); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index f9e08b339e0c..86d20e13bf47 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -926,7 +926,7 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb, * Take the min of ieee80211 station and mvm station */ max_amsdu_len = - min_t(unsigned int, sta->max_amsdu_len, + min_t(unsigned int, sta->cur->max_amsdu_len, iwl_mvm_max_amsdu_size(mvm, sta, tid)); /* diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 5c4ca93bcf91..a54af6bc3251 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -594,14 +594,14 @@ mt76_connac_mcu_sta_amsdu_tlv(struct sk_buff *skb, struct ieee80211_sta *sta, vif->type != NL80211_IFTYPE_STATION) return; - if (!sta->max_amsdu_len) + if (!sta->deflink.agg.max_amsdu_len) return; tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_HW_AMSDU, sizeof(*amsdu)); amsdu = (struct sta_rec_amsdu *)tlv; amsdu->max_amsdu_num = 8; amsdu->amsdu_en = true; - amsdu->max_mpdu_size = sta->max_amsdu_len >= + amsdu->max_mpdu_size = sta->deflink.agg.max_amsdu_len >= IEEE80211_MAX_MPDU_LEN_VHT_7991; wcid->amsdu = true; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index 1081b893f319..d1dc6efba457 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -925,7 +925,7 @@ mt7915_mcu_sta_amsdu_tlv(struct mt7915_dev *dev, struct sk_buff *skb, vif->type != NL80211_IFTYPE_AP) return; - if (!sta->max_amsdu_len) + if (!sta->deflink.agg.max_amsdu_len) return; tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_HW_AMSDU, sizeof(*amsdu)); @@ -934,7 +934,7 @@ mt7915_mcu_sta_amsdu_tlv(struct mt7915_dev *dev, struct sk_buff *skb, amsdu->amsdu_en = true; msta->wcid.amsdu = true; - switch (sta->max_amsdu_len) { + switch (sta->deflink.agg.max_amsdu_len) { case IEEE80211_MAX_MPDU_LEN_VHT_11454: if (!is_mt7915(&dev->mt76)) { amsdu->max_mpdu_size = diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c index 7f6fdebae203..0b5f903c0f36 100644 --- a/drivers/net/wireless/realtek/rtw88/fw.c +++ b/drivers/net/wireless/realtek/rtw88/fw.c @@ -118,7 +118,7 @@ static void rtw_fw_ra_report_iter(void *data, struct ieee80211_sta *sta) si->ra_report.desc_rate = rate; si->ra_report.bit_rate = bit_rate; - sta->max_rc_amsdu_len = get_max_amsdu_len(bit_rate); + sta->deflink.agg.max_rc_amsdu_len = get_max_amsdu_len(bit_rate); } static void rtw_fw_ra_report_handle(struct rtw_dev *rtwdev, u8 *payload, diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c index 738cfcd6fd32..9117b6168e32 100644 --- a/drivers/net/wireless/realtek/rtw89/debug.c +++ b/drivers/net/wireless/realtek/rtw89/debug.c @@ -2309,7 +2309,7 @@ static void rtw89_sta_info_get_iter(void *data, struct ieee80211_sta *sta) seq_printf(m, "%s", rtwsta->ra_report.might_fallback_legacy ? " FB_G" : ""); seq_printf(m, "\t(hw_rate=0x%x)", rtwsta->ra_report.hw_rate); seq_printf(m, "\t==> agg_wait=%d (%d)\n", rtwsta->max_agg_wait, - sta->max_rc_amsdu_len); + sta->deflink.agg.max_rc_amsdu_len); seq_printf(m, "RX rate [%d]: ", rtwsta->mac_id); diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c index 4dfeedeb0d90..a2ebef0051b8 100644 --- a/drivers/net/wireless/realtek/rtw89/phy.c +++ b/drivers/net/wireless/realtek/rtw89/phy.c @@ -2031,8 +2031,8 @@ static void rtw89_phy_c2h_ra_rpt_iter(void *data, struct ieee80211_sta *sta) ra_report->hw_rate = FIELD_PREP(RTW89_HW_RATE_MASK_MOD, mode) | FIELD_PREP(RTW89_HW_RATE_MASK_VAL, rate); ra_report->might_fallback_legacy = mcs <= 2; - sta->max_rc_amsdu_len = get_max_amsdu_len(rtwdev, ra_report); - rtwsta->max_agg_wait = sta->max_rc_amsdu_len / 1500 - 1; + sta->deflink.agg.max_rc_amsdu_len = get_max_amsdu_len(rtwdev, ra_report); + rtwsta->max_agg_wait = sta->deflink.agg.max_rc_amsdu_len / 1500 - 1; } static void diff --git a/include/net/mac80211.h b/include/net/mac80211.h index d9e7f62cc972..873e81a45a97 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2143,6 +2143,34 @@ struct ieee80211_sta_txpwr { enum nl80211_tx_power_setting type; }; +/** + * struct ieee80211_sta_aggregates - info that is aggregated from active links + * + * Used for any per-link data that needs to be aggregated and updated in the + * main &struct ieee80211_sta when updated or the active links change. + * + * @max_amsdu_len: indicates the maximal length of an A-MSDU in bytes. + * This field is always valid for packets with a VHT preamble. + * For packets with a HT preamble, additional limits apply: + * + * * If the skb is transmitted as part of a BA agreement, the + * A-MSDU maximal size is min(max_amsdu_len, 4065) bytes. + * * If the skb is not part of a BA agreement, the A-MSDU maximal + * size is min(max_amsdu_len, 7935) bytes. + * + * Both additional HT limits must be enforced by the low level + * driver. This is defined by the spec (IEEE 802.11-2012 section + * 8.3.2.2 NOTE 2). + * @max_rc_amsdu_len: Maximum A-MSDU size in bytes recommended by rate control. + * @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID + */ +struct ieee80211_sta_aggregates { + u16 max_amsdu_len; + + u16 max_rc_amsdu_len; + u16 max_tid_amsdu_len[IEEE80211_NUM_TIDS]; +}; + /** * struct ieee80211_link_sta - station Link specific info * All link specific info for a STA link for a non MLD STA(single) @@ -2179,6 +2207,8 @@ struct ieee80211_link_sta { struct ieee80211_he_6ghz_capa he_6ghz_capa; struct ieee80211_sta_eht_cap eht_cap; + struct ieee80211_sta_aggregates agg; + u8 rx_nss; enum ieee80211_sta_rx_bandwidth bandwidth; struct ieee80211_sta_txpwr txpwr; @@ -2218,9 +2248,10 @@ struct ieee80211_link_sta { * @max_amsdu_subframes: indicates the maximal number of MSDUs in a single * A-MSDU. Taken from the Extended Capabilities element. 0 means * unlimited. + * @cur: currently valid data as aggregated from the active links + * For non MLO STA it will point to the deflink data. For MLO STA + * ieee80211_sta_recalc_aggregates() must be called to update it. * @support_p2p_ps: indicates whether the STA supports P2P PS mechanism or not. - * @max_rc_amsdu_len: Maximum A-MSDU size in bytes recommended by rate control. - * @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID * @txq: per-TID data TX queues (if driver uses the TXQ abstraction); note that * the last entry (%IEEE80211_NUM_TIDS) is used for non-data frames * @deflink: This holds the default link STA information, for non MLO STA all link @@ -2250,25 +2281,9 @@ struct ieee80211_sta { bool mlo; u8 max_amsdu_subframes; - /** - * @max_amsdu_len: - * indicates the maximal length of an A-MSDU in bytes. - * This field is always valid for packets with a VHT preamble. - * For packets with a HT preamble, additional limits apply: - * - * * If the skb is transmitted as part of a BA agreement, the - * A-MSDU maximal size is min(max_amsdu_len, 4065) bytes. - * * If the skb is not part of a BA agreement, the A-MSDU maximal - * size is min(max_amsdu_len, 7935) bytes. - * - * Both additional HT limits must be enforced by the low level - * driver. This is defined by the spec (IEEE 802.11-2012 section - * 8.3.2.2 NOTE 2). - */ - u16 max_amsdu_len; + struct ieee80211_sta_aggregates *cur; + bool support_p2p_ps; - u16 max_rc_amsdu_len; - u16 max_tid_amsdu_len[IEEE80211_NUM_TIDS]; struct ieee80211_txq *txq[IEEE80211_NUM_TIDS + 1]; @@ -6105,6 +6120,19 @@ void ieee80211_sta_eosp(struct ieee80211_sta *pubsta); */ void ieee80211_send_eosp_nullfunc(struct ieee80211_sta *pubsta, int tid); +/** + * ieee80211_sta_recalc_aggregates - recalculate aggregate data after a change + * @pubsta: the station + * + * Call this function after changing a per-link aggregate data as referenced in + * &struct ieee80211_sta_aggregates by accessing the agg field of + * &struct ieee80211_link_sta. + * + * With non MLO the data in deflink will be referenced directly. In that case + * there is no need to call this function. + */ +void ieee80211_sta_recalc_aggregates(struct ieee80211_sta *pubsta); + /** * ieee80211_sta_register_airtime - register airtime usage for a sta/tid * diff --git a/net/mac80211/he.c b/net/mac80211/he.c index e73899fd4bbb..729f261520c7 100644 --- a/net/mac80211/he.c +++ b/net/mac80211/he.c @@ -39,17 +39,19 @@ ieee80211_update_from_he_6ghz_capa(const struct ieee80211_he_6ghz_capa *he_6ghz_ switch (le16_get_bits(he_6ghz_capa->capa, IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN)) { case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: - sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; break; case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: - sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; break; case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: default: - sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; break; } + ieee80211_sta_recalc_aggregates(&sta->sta); + link_sta->pub->he_6ghz_capa = *he_6ghz_capa; } diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 12a233ba5031..83bc41346ae7 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -241,9 +241,11 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, ht_cap.mcs.rx_highest = ht_cap_ie->mcs.rx_highest; if (ht_cap.cap & IEEE80211_HT_CAP_MAX_AMSDU) - sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_7935; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_7935; else - sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_3839; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_3839; + + ieee80211_sta_recalc_aggregates(&sta->sta); apply: changed = memcmp(&link_sta->pub->ht_cap, &ht_cap, sizeof(ht_cap)); diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index 8c41a545a8b7..24c3c055db6d 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -1568,7 +1568,8 @@ minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) if (i < IEEE80211_TX_RATE_TABLE_SIZE) rates->rate[i].idx = -1; - mi->sta->max_rc_amsdu_len = minstrel_ht_get_max_amsdu_len(mi); + mi->sta->deflink.agg.max_rc_amsdu_len = minstrel_ht_get_max_amsdu_len(mi); + ieee80211_sta_recalc_aggregates(mi->sta); rate_control_set_rates(mp->hw, mi->sta, rates); } diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index baa55fbab0a2..4b702235b18d 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -376,6 +376,8 @@ static void sta_remove_link(struct sta_info *sta, unsigned int link_id, sta_info_free_link(&alloc->info); kfree_rcu(alloc, rcu_head); } + + ieee80211_sta_recalc_aggregates(&sta->sta); } /** @@ -514,6 +516,7 @@ static void sta_info_add_link(struct sta_info *sta, rcu_assign_pointer(sta->sta.link[link_id], link_sta); link_sta->smps_mode = IEEE80211_SMPS_OFF; + link_sta->agg.max_rc_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_BA; } static struct sta_info * @@ -544,6 +547,8 @@ __sta_info_alloc(struct ieee80211_sub_if_data *sdata, sta_info_add_link(sta, 0, &sta->deflink, &sta->sta.deflink); } + sta->sta.cur = &sta->sta.deflink.agg; + spin_lock_init(&sta->lock); spin_lock_init(&sta->ps_lock); INIT_WORK(&sta->drv_deliver_wk, sta_deliver_ps_frames); @@ -667,8 +672,6 @@ __sta_info_alloc(struct ieee80211_sub_if_data *sdata, } } - sta->sta.max_rc_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_BA; - sta->cparams.ce_threshold = CODEL_DISABLED_THRESHOLD; sta->cparams.target = MS2TIME(20); sta->cparams.interval = MS2TIME(100); @@ -2124,6 +2127,44 @@ void ieee80211_sta_register_airtime(struct ieee80211_sta *pubsta, u8 tid, } EXPORT_SYMBOL(ieee80211_sta_register_airtime); +void ieee80211_sta_recalc_aggregates(struct ieee80211_sta *pubsta) +{ + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + struct ieee80211_link_sta *link_sta; + int link_id, i; + bool first = true; + + if (!pubsta->valid_links || !pubsta->mlo) { + pubsta->cur = &pubsta->deflink.agg; + return; + } + + rcu_read_lock(); + for_each_sta_active_link(&sta->sdata->vif, pubsta, link_sta, link_id) { + if (first) { + sta->cur = pubsta->deflink.agg; + first = false; + continue; + } + + sta->cur.max_amsdu_len = + min(sta->cur.max_amsdu_len, + link_sta->agg.max_amsdu_len); + sta->cur.max_rc_amsdu_len = + min(sta->cur.max_rc_amsdu_len, + link_sta->agg.max_rc_amsdu_len); + + for (i = 0; i < ARRAY_SIZE(sta->cur.max_tid_amsdu_len); i++) + sta->cur.max_tid_amsdu_len[i] = + min(sta->cur.max_tid_amsdu_len[i], + link_sta->agg.max_tid_amsdu_len[i]); + } + rcu_read_unlock(); + + pubsta->cur = &sta->cur; +} +EXPORT_SYMBOL(ieee80211_sta_recalc_aggregates); + void ieee80211_sta_update_pending_airtime(struct ieee80211_local *local, struct sta_info *sta, u8 ac, u16 tx_airtime, bool tx_completed) @@ -2819,6 +2860,11 @@ int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id) if (!test_sta_flag(sta, WLAN_STA_INSERTED)) goto hash; + /* Ensure the values are updated for the driver, + * redone by sta_remove_link on failure. + */ + ieee80211_sta_recalc_aggregates(&sta->sta); + ret = drv_change_sta_links(sdata->local, sdata, &sta->sta, old_links, new_links); if (ret) { diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 2eb3a9452e07..2517ea714dc4 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -622,6 +622,8 @@ struct link_sta_info { * @tdls_chandef: a TDLS peer can have a wider chandef that is compatible to * the BSS one. * @frags: fragment cache + * @cur: storage for aggregation data + * &struct ieee80211_sta points either here or to deflink.agg. * @deflink: This is the default link STA information, for non MLO STA all link * specific STA information is accessed through @deflink or through * link[0] which points to address of @deflink. For MLO Link STA @@ -705,6 +707,7 @@ struct sta_info { struct ieee80211_fragment_cache frags; + struct ieee80211_sta_aggregates cur; struct link_sta_info deflink; struct link_sta_info __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 30293e49e444..5d1c6853c008 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -3387,7 +3387,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, int subframe_len = skb->len - ETH_ALEN; u8 max_subframes = sta->sta.max_amsdu_subframes; int max_frags = local->hw.max_tx_fragments; - int max_amsdu_len = sta->sta.max_amsdu_len; + int max_amsdu_len = sta->sta.cur->max_amsdu_len; int orig_truesize; u32 flow_idx; __be16 len; @@ -3413,13 +3413,13 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata, if (test_bit(IEEE80211_TXQ_NO_AMSDU, &txqi->flags)) return false; - if (sta->sta.max_rc_amsdu_len) + if (sta->sta.cur->max_rc_amsdu_len) max_amsdu_len = min_t(int, max_amsdu_len, - sta->sta.max_rc_amsdu_len); + sta->sta.cur->max_rc_amsdu_len); - if (sta->sta.max_tid_amsdu_len[tid]) + if (sta->sta.cur->max_tid_amsdu_len[tid]) max_amsdu_len = min_t(int, max_amsdu_len, - sta->sta.max_tid_amsdu_len[tid]); + sta->sta.cur->max_tid_amsdu_len[tid]); flow_idx = fq_flow_idx(fq, skb); diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index b2b09d421e8b..803de5881485 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -323,16 +323,18 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, */ switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) { case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454: - link_sta->sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_11454; break; case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991: - link_sta->sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_7991; break; case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895: default: - link_sta->sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; + link_sta->pub->agg.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_VHT_3895; break; } + + ieee80211_sta_recalc_aggregates(&link_sta->sta->sta); } /* FIXME: move this to some better location - parses HE/EHT now */ From patchwork Fri Sep 2 14:12:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602369 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97C95ECAAD5 for ; Fri, 2 Sep 2022 14:51:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236998AbiIBOvx (ORCPT ); Fri, 2 Sep 2022 10:51:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236660AbiIBOvJ (ORCPT ); Fri, 2 Sep 2022 10:51:09 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88E1BC7B81 for ; Fri, 2 Sep 2022 07:13:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=Vkn9bX2get9xJfGaW7IT8bl2uJfcZVU6lSSkxkJlWGQ=; t=1662127995; x=1663337595; b=Amz6I0JlBrc2iHnh7BQM5CO3IVP4wZ8GZqc0NOj3xL//Djg FEa6AzprOZWt/EaulGisOHwuAt/J7+RJ6pOinIhSkmVzKNpTSEOebbiIG2WXSXQEPKXtysIbn2anF pcd1u2LOM0UuO0sIGMijqXxnZnH/19HV0ZUdI3mpOFk8Nkx1V3Z+XKVTlOxelXpZ0Wcvnz9CjIp3x Xw4XcGqxxAJFQBoKYwOkZSQIBJ1iNtuIFj+8yCCFq6dkKy7kpgCZ/5KH01x44m65OLxGthu6amVSf mQjJ2Q4fydGTjC32pgY5dc4c7rU+/lVYnciXMg3CZfNor+c8ednz9pY+kXXtrYXA==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Pz-006Ch3-1N; Fri, 02 Sep 2022 16:13:11 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 23/27] wifi: mac80211: fix double SW scan stop Date: Fri, 2 Sep 2022 16:12:55 +0200 Message-Id: <20220902161143.90c4cba91722.If9fe28ed40e21b8979e56cf498491f003432a461@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg When we stop a not-yet-started scan, we erroneously call into the driver, causing a sequence of sw_scan_start() followed by sw_scan_complete() twice. This now causes a warning in hwsim with the recent commit that validates the address passed to wmediumd/virtio. Fix this by doing the calls only if we were actually scanning. Signed-off-by: Johannes Berg --- net/mac80211/scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index fa8ddf576bc1..a30964589a94 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -482,7 +482,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) /* Set power back to normal operating levels. */ ieee80211_hw_config(local, 0); - if (!hw_scan) { + if (!hw_scan && was_scanning) { ieee80211_configure_filter(local); drv_sw_scan_complete(local, scan_sdata); ieee80211_offchannel_return(local); From patchwork Fri Sep 2 14:12:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602367 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53929C6FA82 for ; Fri, 2 Sep 2022 14:52:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236176AbiIBOwA (ORCPT ); Fri, 2 Sep 2022 10:52:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236737AbiIBOvL (ORCPT ); Fri, 2 Sep 2022 10:51:11 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19EB8CEB02 for ; Fri, 2 Sep 2022 07:13:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=ab6ydZX56sh4OhPLFsOZuomQ8ZF/RQ4XGWJ8U9u7lHY=; t=1662127996; x=1663337596; b=kRvZsJ2Arb1UEl1IWT2ZkgeMlww1lnfj7APjphgpQaITpAu uxEyKnP40U2kbtJ7xhz6CpHJh9AmeaIL89mRvoSfPjh3VVB/YwCLm/TDJ500wkwmwcGpBwSxX6mjI 9YObNtfXOgGo8l8Zfwrz27OB4xnh99Ktmw3ZP6Dvfj1ZTx7nf2ruFx6XhAq5yV08eSYY/9l1QL9kC ZUYlBk1uEJX9zhjKXBQrHNdlQaapCPtz6Sptr2V01m7P7hClgQt9mqfdW8g3mZ3r6OPYwLEYJg80O mZ0thQU2ewRgpUDuXtbdRYC9KjEImfatZeorYy1zexWBtU9jvmL3hsHCOKOBnG8A==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Q2-006Ch3-0e; Fri, 02 Sep 2022 16:13:14 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 24/27] wifi: mac80211: implement link switching Date: Fri, 2 Sep 2022 16:12:56 +0200 Message-Id: <20220902161143.d99dfbe65c90.I92385ba882ec984a9a2ad18293173436657e82aa@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Implement an API function and debugfs file to switch active links. Also provide an async version of the API so drivers can call it in arbitrary contexts, e.g. while in the authorized callback. Signed-off-by: Johannes Berg --- include/net/mac80211.h | 41 ++++++++ net/mac80211/debugfs_netdev.c | 26 ++++++ net/mac80211/ieee80211_i.h | 4 + net/mac80211/iface.c | 12 +++ net/mac80211/key.c | 34 +++++++ net/mac80211/key.h | 3 + net/mac80211/link.c | 171 ++++++++++++++++++++++++++++++++++ 7 files changed, 291 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 873e81a45a97..ac2bad57933f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -7184,4 +7184,45 @@ static inline bool ieee80211_is_tx_data(struct sk_buff *skb) ieee80211_is_data(hdr->frame_control); } +/** + * ieee80211_set_active_links - set active links in client mode + * @vif: interface to set active links on + * @active_links: the new active links bitmap + * + * This changes the active links on an interface. The interface + * must be in client mode (in AP mode, all links are always active), + * and @active_links must be a subset of the vif's valid_links. + * + * If a link is switched off and another is switched on at the same + * time (e.g. active_links going from 0x1 to 0x10) then you will get + * a sequence of calls like + * - change_vif_links(0x11) + * - unassign_vif_chanctx(link_id=0) + * - change_sta_links(0x11) for each affected STA (the AP) + * (TDLS connections on now inactive links should be torn down) + * - remove group keys on the old link (link_id 0) + * - add new group keys (GTK/IGTK/BIGTK) on the new link (link_id 4) + * - change_sta_links(0x10) for each affected STA (the AP) + * - assign_vif_chanctx(link_id=4) + * - change_vif_links(0x10) + * + * Note: This function acquires some mac80211 locks and must not + * be called with any driver locks held that could cause a + * lock dependency inversion. Best call it without locks. + */ +int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links); + +/** + * ieee80211_set_active_links_async - asynchronously set active links + * @vif: interface to set active links on + * @active_links: the new active links bitmap + * + * See ieee80211_set_active_links() for more information, the only + * difference here is that the link change is triggered async and + * can be called in any context, but the link switch will only be + * completed after it returns. + */ +void ieee80211_set_active_links_async(struct ieee80211_vif *vif, + u16 active_links); + #endif /* MAC80211_H */ diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 1e5b041a5cea..5b014786fd2d 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -570,6 +570,30 @@ static ssize_t ieee80211_if_parse_tsf( } IEEE80211_IF_FILE_RW(tsf); +static ssize_t ieee80211_if_fmt_valid_links(const struct ieee80211_sub_if_data *sdata, + char *buf, int buflen) +{ + return snprintf(buf, buflen, "0x%x\n", sdata->vif.valid_links); +} +IEEE80211_IF_FILE_R(valid_links); + +static ssize_t ieee80211_if_fmt_active_links(const struct ieee80211_sub_if_data *sdata, + char *buf, int buflen) +{ + return snprintf(buf, buflen, "0x%x\n", sdata->vif.active_links); +} + +static ssize_t ieee80211_if_parse_active_links(struct ieee80211_sub_if_data *sdata, + const char *buf, int buflen) +{ + u16 active_links; + + if (kstrtou16(buf, 0, &active_links)) + return -EINVAL; + + return ieee80211_set_active_links(&sdata->vif, active_links) ?: buflen; +} +IEEE80211_IF_FILE_RW(active_links); #ifdef CONFIG_MAC80211_MESH IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC); @@ -670,6 +694,8 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata) DEBUGFS_ADD_MODE(uapsd_queues, 0600); DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600); DEBUGFS_ADD_MODE(tdls_wider_bw, 0600); + DEBUGFS_ADD_MODE(valid_links, 0200); + DEBUGFS_ADD_MODE(active_links, 0600); } static void add_ap_files(struct ieee80211_sub_if_data *sdata) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 977aea4467e0..4e1d4c339f2d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1081,6 +1081,10 @@ struct ieee80211_sub_if_data { struct ieee80211_link_data deflink; struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; + /* for ieee80211_set_active_links_async() */ + struct work_struct activate_links_work; + u16 desired_active_links; + #ifdef CONFIG_MAC80211_DEBUGFS struct { struct dentry *subdir_stations; diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index bf1c44d53c30..30c62b63d179 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -683,6 +683,8 @@ static int ieee80211_stop(struct net_device *dev) ieee80211_stop_mbssid(sdata); } + cancel_work_sync(&sdata->activate_links_work); + wiphy_lock(sdata->local->hw.wiphy); ieee80211_do_stop(sdata, true); wiphy_unlock(sdata->local->hw.wiphy); @@ -1653,6 +1655,15 @@ static void ieee80211_recalc_smps_work(struct work_struct *work) ieee80211_recalc_smps(sdata, &sdata->deflink); } +static void ieee80211_activate_links_work(struct work_struct *work) +{ + struct ieee80211_sub_if_data *sdata = + container_of(work, struct ieee80211_sub_if_data, + activate_links_work); + + ieee80211_set_active_links(&sdata->vif, sdata->desired_active_links); +} + /* * Helper function to initialise an interface to a specific type. */ @@ -1690,6 +1701,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata, skb_queue_head_init(&sdata->status_queue); INIT_WORK(&sdata->work, ieee80211_iface_work); INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work); + INIT_WORK(&sdata->activate_links_work, ieee80211_activate_links_work); switch (type) { case NL80211_IFTYPE_P2P_GO: diff --git a/net/mac80211/key.c b/net/mac80211/key.c index f6f0f65fb255..e8f6c1e5eabf 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -1445,3 +1445,37 @@ void ieee80211_key_replay(struct ieee80211_key_conf *keyconf) } } EXPORT_SYMBOL_GPL(ieee80211_key_replay); + +int ieee80211_key_switch_links(struct ieee80211_sub_if_data *sdata, + unsigned long del_links_mask, + unsigned long add_links_mask) +{ + struct ieee80211_key *key; + int ret; + + list_for_each_entry(key, &sdata->key_list, list) { + if (key->conf.link_id < 0 || + !(del_links_mask & BIT(key->conf.link_id))) + continue; + + /* shouldn't happen for per-link keys */ + WARN_ON(key->sta); + + ieee80211_key_disable_hw_accel(key); + } + + list_for_each_entry(key, &sdata->key_list, list) { + if (key->conf.link_id < 0 || + !(add_links_mask & BIT(key->conf.link_id))) + continue; + + /* shouldn't happen for per-link keys */ + WARN_ON(key->sta); + + ret = ieee80211_key_enable_hw_accel(key); + if (ret) + return ret; + } + + return 0; +} diff --git a/net/mac80211/key.h b/net/mac80211/key.h index 518af24aab56..f3df97df4b72 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -165,6 +165,9 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata, void ieee80211_free_sta_keys(struct ieee80211_local *local, struct sta_info *sta); void ieee80211_reenable_keys(struct ieee80211_sub_if_data *sdata); +int ieee80211_key_switch_links(struct ieee80211_sub_if_data *sdata, + unsigned long del_links_mask, + unsigned long add_links_mask); #define key_mtx_dereference(local, ref) \ rcu_dereference_protected(ref, lockdep_is_held(&((local)->key_mtx))) diff --git a/net/mac80211/link.c b/net/mac80211/link.c index 8df348a5edce..e309708abae8 100644 --- a/net/mac80211/link.c +++ b/net/mac80211/link.c @@ -9,6 +9,7 @@ #include #include "ieee80211_i.h" #include "driver-ops.h" +#include "key.h" void ieee80211_link_setup(struct ieee80211_link_data *link) { @@ -300,3 +301,173 @@ void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) ieee80211_free_links(sdata, links); } + +static int _ieee80211_set_active_links(struct ieee80211_sub_if_data *sdata, + u16 active_links) +{ + struct ieee80211_bss_conf *link_confs[IEEE80211_MLD_MAX_NUM_LINKS]; + struct ieee80211_local *local = sdata->local; + u16 old_active = sdata->vif.active_links; + unsigned long rem = old_active & ~active_links; + unsigned long add = active_links & ~old_active; + struct sta_info *sta; + unsigned int link_id; + int ret, i; + + if (!ieee80211_sdata_running(sdata)) + return -ENETDOWN; + + if (sdata->vif.type != NL80211_IFTYPE_STATION) + return -EINVAL; + + /* cannot activate links that don't exist */ + if (active_links & ~sdata->vif.valid_links) + return -EINVAL; + + /* nothing to do */ + if (old_active == active_links) + return 0; + + for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) + link_confs[i] = sdata_dereference(sdata->vif.link_conf[i], + sdata); + + if (add) { + sdata->vif.active_links |= active_links; + ret = drv_change_vif_links(local, sdata, + old_active, + sdata->vif.active_links, + link_confs); + if (ret) { + sdata->vif.active_links = old_active; + return ret; + } + } + + for_each_set_bit(link_id, &rem, IEEE80211_MLD_MAX_NUM_LINKS) { + struct ieee80211_link_data *link; + + link = sdata_dereference(sdata->link[link_id], sdata); + + /* FIXME: kill TDLS connections on the link */ + + ieee80211_link_release_channel(link); + } + + list_for_each_entry(sta, &local->sta_list, list) { + if (sdata != sta->sdata) + continue; + ret = drv_change_sta_links(local, sdata, &sta->sta, + old_active, + old_active | active_links); + WARN_ON_ONCE(ret); + } + + ret = ieee80211_key_switch_links(sdata, rem, add); + WARN_ON_ONCE(ret); + + list_for_each_entry(sta, &local->sta_list, list) { + if (sdata != sta->sdata) + continue; + ret = drv_change_sta_links(local, sdata, &sta->sta, + old_active | active_links, + active_links); + WARN_ON_ONCE(ret); + } + + for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) { + struct ieee80211_link_data *link; + + link = sdata_dereference(sdata->link[link_id], sdata); + + ret = ieee80211_link_use_channel(link, &link->conf->chandef, + IEEE80211_CHANCTX_SHARED); + WARN_ON_ONCE(ret); + + ieee80211_link_info_change_notify(sdata, link, + BSS_CHANGED_ERP_CTS_PROT | + BSS_CHANGED_ERP_PREAMBLE | + BSS_CHANGED_ERP_SLOT | + BSS_CHANGED_HT | + BSS_CHANGED_BASIC_RATES | + BSS_CHANGED_BSSID | + BSS_CHANGED_CQM | + BSS_CHANGED_QOS | + BSS_CHANGED_TXPOWER | + BSS_CHANGED_BANDWIDTH | + BSS_CHANGED_TWT | + BSS_CHANGED_HE_OBSS_PD | + BSS_CHANGED_HE_BSS_COLOR); + ieee80211_mgd_set_link_qos_params(link); + } + + old_active = sdata->vif.active_links; + sdata->vif.active_links = active_links; + + if (rem) { + ret = drv_change_vif_links(local, sdata, old_active, + active_links, link_confs); + WARN_ON_ONCE(ret); + } + + return 0; +} + +int ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + u16 old_active; + int ret; + + sdata_lock(sdata); + mutex_lock(&local->sta_mtx); + mutex_lock(&local->mtx); + mutex_lock(&local->key_mtx); + old_active = sdata->vif.active_links; + if (old_active & active_links) { + /* + * if there's at least one link that stays active across + * the change then switch to it (to those) first, and + * then enable the additional links + */ + ret = _ieee80211_set_active_links(sdata, + old_active & active_links); + if (!ret) + ret = _ieee80211_set_active_links(sdata, active_links); + } else { + /* otherwise switch directly */ + ret = _ieee80211_set_active_links(sdata, active_links); + } + mutex_unlock(&local->key_mtx); + mutex_unlock(&local->mtx); + mutex_unlock(&local->sta_mtx); + sdata_unlock(sdata); + + return ret; +} +EXPORT_SYMBOL_GPL(ieee80211_set_active_links); + +void ieee80211_set_active_links_async(struct ieee80211_vif *vif, + u16 active_links) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + if (!ieee80211_sdata_running(sdata)) + return; + + if (sdata->vif.type != NL80211_IFTYPE_STATION) + return; + + /* cannot activate links that don't exist */ + if (active_links & ~sdata->vif.valid_links) + return; + + /* nothing to do */ + if (sdata->vif.active_links == active_links) + return; + + sdata->desired_active_links = active_links; + schedule_work(&sdata->activate_links_work); +} +EXPORT_SYMBOL_GPL(ieee80211_set_active_links_async); From patchwork Fri Sep 2 14:12:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602630 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CF77C6FA82 for ; Fri, 2 Sep 2022 14:51:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236618AbiIBOvy (ORCPT ); Fri, 2 Sep 2022 10:51:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236673AbiIBOvJ (ORCPT ); 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Fri, 02 Sep 2022 16:13:14 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 25/27] wifi: mac80211_hwsim: always activate all links Date: Fri, 2 Sep 2022 16:12:57 +0200 Message-Id: <20220902161143.f532f47ae5aa.I1e04b12b2784ea52f91f4bffb2c4af7686482435@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg By default, even in client mode, hwsim always had all links active, where it then uses them in a round-robin fashion. Re-enable that by activating all valid links work right after the connection is authorized. Signed-off-by: Johannes Berg --- drivers/net/wireless/mac80211_hwsim.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index f044db1621dd..96f7333f7ce1 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2476,6 +2476,14 @@ static int mac80211_hwsim_sta_state(struct ieee80211_hw *hw, if (old_state == IEEE80211_STA_NOTEXIST) return mac80211_hwsim_sta_add(hw, vif, sta); + /* + * when client is authorized (AP station marked as such), + * enable all links + */ + if (vif->type == NL80211_IFTYPE_STATION && + new_state == IEEE80211_STA_AUTHORIZED && !sta->tdls) + ieee80211_set_active_links_async(vif, vif->valid_links); + return 0; } From patchwork Fri Sep 2 14:12:58 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602368 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7BF05C38145 for ; Fri, 2 Sep 2022 14:51:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236662AbiIBOvz (ORCPT ); Fri, 2 Sep 2022 10:51:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60844 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236691AbiIBOvK (ORCPT ); Fri, 2 Sep 2022 10:51:10 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79F3BD11E9 for ; Fri, 2 Sep 2022 07:13:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=Iy+CTgre9YIFNysf5OVP84n8QeXNgWna12rnUwmorsM=; t=1662127996; x=1663337596; b=FKCBrmufRBtzin4Y7VIWV75CSQDQlhPKh1V2GZSTcsVys60 zhWDYR9X64l3TCwaU1PDjcbdxDcEybaJaaYqEyStFhmwwMvhHKQI5GSkroIqkIuekcVpb0218kFVd mad4n69vqvIYS+73XBCHgI/ucfUUVB4cQwJ4MT8s/qY5ge74L0Eur+yE1PfABvJl7EzcEXFVFUa14 cb8vTvn7nkPdOy2XnNxJeTYTX3QVTmPjzLiDLhV5YYiYcvLyf5OVwVjjsOI3mwR+gJ1U9r3hUOXUW AjmSPx45qvvawr74zwyL+1B/Gupi3XHZHXhCkxAEmcgys4OsebrPdcNSgS8ZmqGw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Q2-006Ch3-2C; Fri, 02 Sep 2022 16:13:14 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 26/27] wifi: mac80211: prevent 4-addr use on MLDs Date: Fri, 2 Sep 2022 16:12:58 +0200 Message-Id: <20220902161143.f2e4cc2efaa1.I5924e8fb44a2d098b676f5711b36bbc1b1bd68e2@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg We haven't tried this yet, and it's not very likely to work well right now, so for now disable 4-addr use on interfaces that are MLDs. Signed-off-by: Johannes Berg --- net/mac80211/cfg.c | 7 +++++++ net/mac80211/mlme.c | 4 ++++ 2 files changed, 11 insertions(+) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index b5522edbe05d..687b4c878d4a 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -226,6 +226,10 @@ static int ieee80211_change_iface(struct wiphy *wiphy, if (params->use_4addr == ifmgd->use_4addr) return 0; + /* FIXME: no support for 4-addr MLO yet */ + if (sdata->vif.valid_links) + return -EOPNOTSUPP; + sdata->u.mgd.use_4addr = params->use_4addr; if (!ifmgd->associated) return 0; @@ -4697,6 +4701,9 @@ static int ieee80211_add_intf_link(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); + if (wdev->use_4addr) + return -EOPNOTSUPP; + return ieee80211_vif_set_links(sdata, wdev->valid_links); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 8a2237106002..ff449e0c2e62 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -6903,6 +6903,10 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) size += req->links[i].elems_len; + /* FIXME: no support for 4-addr MLO yet */ + if (sdata->u.mgd.use_4addr && req->link_id >= 0) + return -EOPNOTSUPP; + assoc_data = kzalloc(size, GFP_KERNEL); if (!assoc_data) return -ENOMEM; From patchwork Fri Sep 2 14:12:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 602629 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FDE9ECAAD5 for ; Fri, 2 Sep 2022 14:52:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235631AbiIBOv5 (ORCPT ); Fri, 2 Sep 2022 10:51:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236714AbiIBOvK (ORCPT ); Fri, 2 Sep 2022 10:51:10 -0400 Received: from sipsolutions.net (s3.sipsolutions.net [IPv6:2a01:4f8:191:4433::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F989D4BC0 for ; Fri, 2 Sep 2022 07:13:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Content-Type:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=weWZ2oVGpywF1ZC9Tl2mHej90snubFfr4KO56uW+2q8=; t=1662127996; x=1663337596; b=CyB1VDzqD/zRWwhw500wT6T0UC8RV+WgGLWquVtt+EM9u0G mhqmEAO5FPMcxhBOjO+2eJnhwzW6syZe/GZAisuBQ5I9Xc+rS3Krczeb9IqygXEnHTZa4EOWJEeJf 6KHp1i2Fs2S24CtDtNEy+XYepOBsu6GkpMlbdf67aXiAUyn3VZqHqC7uugP80hwKyT5QTHPwHIa6/ WlmC3y5LFzmVQjQLs4NG8iLa+cfmFczBB7aei8g/DDcPsSUfxu+vLgx2HHCJ1A93mhKZ+VlSvi1kr VQK5O9n1B3iKUus8Ld/bKgbfEhkSSXaDT+tSQZEX3DR2X3ssa0kT6ghIPPy4zbGw==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1oU7Q2-006Ch3-30; Fri, 02 Sep 2022 16:13:15 +0200 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH 27/27] wifi: mac80211: prevent VLANs on MLDs Date: Fri, 2 Sep 2022 16:12:59 +0200 Message-Id: <20220902161144.8c88531146e9.If2ef9a3b138d4f16ed2fda91c852da156bdf5e4d@changeid> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220902141259.377789-1-johannes@sipsolutions.net> References: <20220902141259.377789-1-johannes@sipsolutions.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Johannes Berg Do not allow VLANs to be added to AP interfaces that are MLDs, this isn't going to work because the link structs aren't propagated to the VLAN interfaces yet. Signed-off-by: Johannes Berg --- net/mac80211/iface.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 30c62b63d179..3ea1f4fbca7b 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -296,6 +296,11 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata, nsdata->vif.type)) return -ENOTUNIQ; + /* No support for VLAN with MLO yet */ + if (iftype == NL80211_IFTYPE_AP_VLAN && + nsdata->wdev.use_4addr) + return -EOPNOTSUPP; + /* * can only add VLANs to enabled APs */