Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - support "prefer busy polling" NAPI operation mode, where we defer
     softirq for some time expecting applications to periodically busy
     poll

   - AF_XDP: improve efficiency by more batching and hindering the
     adjacency cache prefetcher

   - af_packet: make packet_fanout.arr size configurable up to 64K

   - tcp: optimize TCP zero copy receive in presence of partial or
     unaligned reads making zero copy a performance win for much smaller
     messages

   - XDP: add bulk APIs for returning / freeing frames

   - sched: support fragmenting IP packets as they come out of conntrack

   - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs

  BPF:

   - BPF switch from crude rlimit-based to memcg-based memory accounting

   - BPF type format information for kernel modules and related tracing
     enhancements

   - BPF implement task local storage for BPF LSM

   - allow the FENTRY/FEXIT/RAW_TP tracing programs to use
     bpf_sk_storage

  Protocols:

   - mptcp: improve multiple xmit streams support, memory accounting and
     many smaller improvements

   - TLS: support CHACHA20-POLY1305 cipher

   - seg6: add support for SRv6 End.DT4/DT6 behavior

   - sctp: Implement RFC 6951: UDP Encapsulation of SCTP

   - ppp_generic: add ability to bridge channels directly

   - bridge: Connectivity Fault Management (CFM) support as is defined
     in IEEE 802.1Q section 12.14.

  Drivers:

   - mlx5: make use of the new auxiliary bus to organize the driver
     internals

   - mlx5: more accurate port TX timestamping support

   - mlxsw:
      - improve the efficiency of offloaded next hop updates by using
        the new nexthop object API
      - support blackhole nexthops
      - support IEEE 802.1ad (Q-in-Q) bridging

   - rtw88: major bluetooth co-existance improvements

   - iwlwifi: support new 6 GHz frequency band

   - ath11k: Fast Initial Link Setup (FILS)

   - mt7915: dual band concurrent (DBDC) support

   - net: ipa: add basic support for IPA v4.5

  Refactor:

   - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
     Siewior

   - phy: add support for shared interrupts; get rid of multiple driver
     APIs and have the drivers write a full IRQ handler, slight growth
     of driver code should be compensated by the simpler API which also
     allows shared IRQs

   - add common code for handling netdev per-cpu counters

   - move TX packet re-allocation from Ethernet switch tag drivers to a
     central place

   - improve efficiency and rename nla_strlcpy

   - number of W=1 warning cleanups as we now catch those in a patchwork
     build bot

  Old code removal:

   - wan: delete the DLCI / SDLA drivers

   - wimax: move to staging

   - wifi: remove old WDS wifi bridging support"

* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
  net: hns3: fix expression that is currently always true
  net: fix proc_fs init handling in af_packet and tls
  nfc: pn533: convert comma to semicolon
  af_vsock: Assign the vsock transport considering the vsock address flags
  af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
  vsock_addr: Check for supported flag values
  vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
  vm_sockets: Add flags field in the vsock address data structure
  net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
  tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
  net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
  nfc: s3fwrn5: Release the nfc firmware
  net: vxget: clean up sparse warnings
  mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
  mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
  mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
  mlxsw: reg: Add Router LPM Cache Enable Register
  mlxsw: reg: Add Router LPM Cache ML Delete Register
  mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
  mlxsw: reg: Add XM Router M Table Register
  ...

1 files changed, 42 insertions, 89 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index b627e7da7ac9..da32937ba9a7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1,64 +1,9 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license.  When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
- * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution
- * in the file called COPYING.
- *
- * Contact Information:
- *  Intel Linux Wireless <linuxwifi@intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
- * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *  * Neither the name Intel Corporation nor the names of its
- *    contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2012-2014, 2018-2020 Intel Corporation
+ * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
+ * Copyright (C) 2016-2017 Intel Deutschland GmbH
+ */
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/skbuff.h>
@@ -566,6 +511,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 
 	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
 	hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
+	hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
 
 	hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
 	hw->wiphy->n_iface_combinations =
@@ -619,6 +565,11 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 			hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
 				IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
 	}
+	if (fw_has_capa(&mvm->fw->ucode_capa,
+			IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
+	    mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
+		hw->wiphy->bands[NL80211_BAND_6GHZ] =
+			&mvm->nvm_data->bands[NL80211_BAND_6GHZ];
 
 	hw->wiphy->hw_version = mvm->trans->hw_id;
 
@@ -748,13 +699,9 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	}
 
 	hw->netdev_features |= mvm->cfg->features;
-	if (!iwl_mvm_is_csum_supported(mvm)) {
+	if (!iwl_mvm_is_csum_supported(mvm))
 		hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
 					 NETIF_F_RXCSUM);
-		/* We may support SW TX CSUM */
-		if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
-			hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
-	}
 
 	if (mvm->cfg->vht_mu_mimo_supported)
 		wiphy_ext_feature_set(hw->wiphy,
@@ -1353,12 +1300,6 @@ static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
-	if (mvmvif->csa_failed) {
-		mvmvif->csa_failed = false;
-		ret = -EIO;
-		goto out_unlock;
-	}
-
 	if (vif->type == NL80211_IFTYPE_STATION) {
 		struct iwl_mvm_sta *mvmsta;
 
@@ -1390,6 +1331,8 @@ static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
 	ret = iwl_mvm_power_update_ps(mvm);
 
 out_unlock:
+	if (mvmvif->csa_failed)
+		ret = -EIO;
 	mutex_unlock(&mvm->mutex);
 
 	return ret;
@@ -1417,9 +1360,10 @@ static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
 					     WIDE_ID(MAC_CONF_GROUP,
 						     CHANNEL_SWITCH_TIME_EVENT_CMD),
 					     0, sizeof(cmd), &cmd));
+	mvmvif->csa_failed = true;
 	mutex_unlock(&mvm->mutex);
 
-	WARN_ON(iwl_mvm_post_channel_switch(hw, vif));
+	iwl_mvm_post_channel_switch(hw, vif);
 }
 
 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
@@ -2279,9 +2223,9 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 	int ret;
 
 	/*
-	 * Re-calculate the tsf id, as the master-slave relations depend on the
-	 * beacon interval, which was not known when the station interface was
-	 * added.
+	 * Re-calculate the tsf id, as the leader-follower relations depend
+	 * on the beacon interval, which was not known when the station
+	 * interface was added.
 	 */
 	if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
 		if (vif->bss_conf.he_support &&
@@ -2499,8 +2443,9 @@ static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
 		goto out_unlock;
 
 	/*
-	 * Re-calculate the tsf id, as the master-slave relations depend on the
-	 * beacon interval, which was not known when the AP interface was added.
+	 * Re-calculate the tsf id, as the leader-follower relations depend on
+	 * the beacon interval, which was not known when the AP interface
+	 * was added.
 	 */
 	if (vif->type == NL80211_IFTYPE_AP)
 		iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
@@ -3116,7 +3061,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 		 * than 16. We can't avoid connecting at all, so refuse the
 		 * station state change, this will cause mac80211 to abandon
 		 * attempts to connect to this AP, and eventually wpa_s will
-		 * blacklist the AP...
+		 * blocklist the AP...
 		 */
 		if (vif->type == NL80211_IFTYPE_STATION &&
 		    vif->bss_conf.beacon_int < 16) {
@@ -4102,7 +4047,7 @@ static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
 			mvmvif->ap_ibss_active = true;
 			break;
 		}
-		/* fall through */
+		fallthrough;
 	case NL80211_IFTYPE_ADHOC:
 		/*
 		 * The AP binding flow is handled as part of the start_ap flow
@@ -4603,6 +4548,9 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
 
 		break;
 	case NL80211_IFTYPE_STATION:
+		if (chsw->delay > IWL_MAX_CSA_BLOCK_TX)
+			schedule_delayed_work(&mvmvif->csa_work, 0);
+
 		if (chsw->block_tx) {
 			/*
 			 * In case of undetermined / long time with immediate
@@ -4676,12 +4624,17 @@ static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
 	}
 	mvmvif->csa_count = chsw->count;
 
-	IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id);
+	mutex_lock(&mvm->mutex);
+	if (mvmvif->csa_failed)
+		goto out_unlock;
 
+	IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id);
 	WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
 				     WIDE_ID(MAC_CONF_GROUP,
 					     CHANNEL_SWITCH_TIME_EVENT_CMD),
-				     CMD_ASYNC, sizeof(cmd), &cmd));
+				     0, sizeof(cmd), &cmd));
+out_unlock:
+	mutex_unlock(&mvm->mutex);
 }
 
 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
@@ -5097,12 +5050,10 @@ void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
 
 	if (notif->sync) {
 		notif->cookie = mvm->queue_sync_cookie;
-		atomic_set(&mvm->queue_sync_counter,
-			   mvm->trans->num_rx_queues);
+		mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
 	}
 
-	ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif,
-				      size, !notif->sync);
+	ret = iwl_mvm_notify_rx_queue(mvm, qmask, notif, size, !notif->sync);
 	if (ret) {
 		IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
 		goto out;
@@ -5111,14 +5062,16 @@ void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
 	if (notif->sync) {
 		lockdep_assert_held(&mvm->mutex);
 		ret = wait_event_timeout(mvm->rx_sync_waitq,
-					 atomic_read(&mvm->queue_sync_counter) == 0 ||
+					 READ_ONCE(mvm->queue_sync_state) == 0 ||
 					 iwl_mvm_is_radio_killed(mvm),
 					 HZ);
-		WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
+		WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm),
+			  "queue sync: failed to sync, state is 0x%lx\n",
+			  mvm->queue_sync_state);
 	}
 
 out:
-	atomic_set(&mvm->queue_sync_counter, 0);
+	mvm->queue_sync_state = 0;
 	if (notif->sync)
 		mvm->queue_sync_cookie++;
 }