diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-31 18:10:11 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-10-31 18:10:11 +0300 |
commit | 89ed67ef126c4160349c1b96fdb775ea6170ac90 (patch) | |
tree | 98caaf8bba44b21f9345a0af1dd2bd9987764e27 /net/mac80211/main.c | |
parent | 5a6a09e97199d6600d31383055f9d43fbbcbe86f (diff) | |
parent | f1c73396133cb3d913e2075298005644ee8dfade (diff) | |
download | linux-89ed67ef126c4160349c1b96fdb775ea6170ac90.tar.xz |
Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Support usec resolution of TCP timestamps, enabled selectively by a
route attribute.
- Defer regular TCP ACK while processing socket backlog, try to send
a cumulative ACK at the end. Increase single TCP flow performance
on a 200Gbit NIC by 20% (100Gbit -> 120Gbit).
- The Fair Queuing (FQ) packet scheduler:
- add built-in 3 band prio / WRR scheduling
- support bypass if the qdisc is mostly idle (5% speed up for TCP RR)
- improve inactive flow reporting
- optimize the layout of structures for better cache locality
- Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern
replacement for the old MD5 option.
- Add more retransmission timeout (RTO) related statistics to
TCP_INFO.
- Support sending fragmented skbs over vsock sockets.
- Make sure we send SIGPIPE for vsock sockets if socket was
shutdown().
- Add sysctl for ignoring lower limit on lifetime in Router
Advertisement PIO, based on an in-progress IETF draft.
- Add sysctl to control activation of TCP ping-pong mode.
- Add sysctl to make connection timeout in MPTCP configurable.
- Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps
limit the number of wakeups.
- Support netlink GET for MDB (multicast forwarding), allowing user
space to request a single MDB entry instead of dumping the entire
table.
- Support selective FDB flushing in the VXLAN tunnel driver.
- Allow limiting learned FDB entries in bridges, prevent OOM attacks.
- Allow controlling via configfs netconsole targets which were
created via the kernel cmdline at boot, rather than via configfs at
runtime.
- Support multiple PTP timestamp event queue readers with different
filters.
- MCTP over I3C.
BPF:
- Add new veth-like netdevice where BPF program defines the logic of
the xmit routine. It can operate in L3 and L2 mode.
- Support exceptions - allow asserting conditions which should never
be true but are hard for the verifier to infer. With some extra
flexibility around handling of the exit / failure:
https://lwn.net/Articles/938435/
- Add support for local per-cpu kptr, allow allocating and storing
per-cpu objects in maps. Access to those objects operates on the
value for the current CPU.
This allows to deprecate local one-off implementations of per-CPU
storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps.
- Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is
for systemd to re-implement the LogNamespace feature which allows
running multiple instances of systemd-journald to process the logs
of different services.
- Enable open-coded task_vma iteration, after maple tree conversion
made it hard to directly walk VMAs in tracing programs.
- Add open-coded task, css_task and css iterator support. One of the
use cases is customizable OOM victim selection via BPF.
- Allow source address selection with bpf_*_fib_lookup().
- Add ability to pin BPF timer to the current CPU.
- Prevent creation of infinite loops by combining tail calls and
fentry/fexit programs.
- Add missed stats for kprobes to retrieve the number of missed
kprobe executions and subsequent executions of BPF programs.
- Inherit system settings for CPU security mitigations.
- Add BPF v4 CPU instruction support for arm32 and s390x.
Changes to common code:
- overflow: add DEFINE_FLEX() for on-stack definition of structs with
flexible array members.
- Process doc update with more guidance for reviewers.
Driver API:
- Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy
mutex in most places and remove a lot of smaller locks.
- Create a common DPLL configuration API. Allow configuring and
querying state of PLL circuits used for clock syntonization, in
network time distribution.
- Unify fragmented and full page allocation APIs in page pool code.
Let drivers be ignorant of PAGE_SIZE.
- Rework PHY state machine to avoid races with calls to phy_stop().
- Notify DSA drivers of MAC address changes on user ports, improve
correctness of offloads which depend on matching port MAC
addresses.
- Allow antenna control on injected WiFi frames.
- Reduce the number of variants of napi_schedule().
- Simplify error handling when composing devlink health messages.
Misc:
- A lot of KCSAN data race "fixes", from Eric.
- A lot of __counted_by() annotations, from Kees.
- A lot of strncpy -> strscpy and printf format fixes.
- Replace master/slave terminology with conduit/user in DSA drivers.
- Handful of KUnit tests for netdev and WiFi core.
Removed:
- AppleTalk COPS.
- AppleTalk ipddp.
- TI AR7 CPMAC Ethernet driver.
Drivers:
- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- add a driver for the Intel E2000 IPUs
- make CRC/FCS stripping configurable
- cross-timestamping for E823 devices
- basic support for E830 devices
- use aux-bus for managing client drivers
- i40e: report firmware versions via devlink
- nVidia/Mellanox:
- support 4-port NICs
- increase max number of channels to 256
- optimize / parallelize SF creation flow
- Broadcom (bnxt):
- enhance NIC temperature reporting
- support PAM4 speeds and lane configuration
- Marvell OcteonTX2:
- PTP pulse-per-second output support
- enable hardware timestamping for VFs
- Solarflare/AMD:
- conntrack NAT offload and offload for tunnels
- Wangxun (ngbe/txgbe):
- expose HW statistics
- Pensando/AMD:
- support PCI level reset
- narrow down the condition under which skbs are linearized
- Netronome/Corigine (nfp):
- support CHACHA20-POLY1305 crypto in IPsec offload
- Ethernet NICs embedded, slower, virtual:
- Synopsys (stmmac):
- add Loongson-1 SoC support
- enable use of HW queues with no offload capabilities
- enable PPS input support on all 5 channels
- increase TX coalesce timer to 5ms
- RealTek USB (r8152): improve efficiency of Rx by using GRO frags
- xen: support SW packet timestamping
- add drivers for implementations based on TI's PRUSS (AM64x EVM)
- nVidia/Mellanox Ethernet datacenter switches:
- avoid poor HW resource use on Spectrum-4 by better block
selection for IPv6 multicast forwarding and ordering of blocks
in ACL region
- Ethernet embedded switches:
- Microchip:
- support configuring the drive strength for EMI compliance
- ksz9477: partial ACL support
- ksz9477: HSR offload
- ksz9477: Wake on LAN
- Realtek:
- rtl8366rb: respect device tree config of the CPU port
- Ethernet PHYs:
- support Broadcom BCM5221 PHYs
- TI dp83867: support hardware LED blinking
- CAN:
- add support for Linux-PHY based CAN transceivers
- at91_can: clean up and use rx-offload helpers
- WiFi:
- MediaTek (mt76):
- new sub-driver for mt7925 USB/PCIe devices
- HW wireless <> Ethernet bridging in MT7988 chips
- mt7603/mt7628 stability improvements
- Qualcomm (ath12k):
- WCN7850:
- enable 320 MHz channels in 6 GHz band
- hardware rfkill support
- enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to
make scan faster
- read board data variant name from SMBIOS
- QCN9274: mesh support
- RealTek (rtw89):
- TDMA-based multi-channel concurrency (MCC)
- Silicon Labs (wfx):
- Remain-On-Channel (ROC) support
- Bluetooth:
- ISO: many improvements for broadcast support
- mark BCM4378/BCM4387 as BROKEN_LE_CODED
- add support for QCA2066
- btmtksdio: enable Bluetooth wakeup from suspend"
* tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits)
net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers
net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos()
net: mana: Use xdp_set_features_flag instead of direct assignment
vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size()
iavf: delete the iavf client interface
iavf: add a common function for undoing the interrupt scheme
iavf: use unregister_netdev
iavf: rely on netdev's own registered state
iavf: fix the waiting time for initial reset
iavf: in iavf_down, don't queue watchdog_task if comms failed
iavf: simplify mutex_trylock+sleep loops
iavf: fix comments about old bit locks
doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name
tools: ynl: introduce option to process unknown attributes or types
ipvlan: properly track tx_errors
netdevsim: Block until all devices are released
nfp: using napi_build_skb() to replace build_skb()
net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy"
net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN
net: dsa: microchip: Refactor switch shutdown routine for WoL preparation
...
Diffstat (limited to 'net/mac80211/main.c')
-rw-r--r-- | net/mac80211/main.c | 93 |
1 files changed, 53 insertions, 40 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 24315d7b3126..033a5261ac3a 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -84,7 +84,8 @@ void ieee80211_configure_filter(struct ieee80211_local *local) local->filter_flags = new_flags & ~(1<<31); } -static void ieee80211_reconfig_filter(struct work_struct *work) +static void ieee80211_reconfig_filter(struct wiphy *wiphy, + struct wiphy_work *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, reconfig_filter); @@ -206,7 +207,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) BSS_CHANGED_PS |\ BSS_CHANGED_IBSS |\ BSS_CHANGED_ARP_FILTER |\ - BSS_CHANGED_SSID) + BSS_CHANGED_SSID |\ + BSS_CHANGED_MLD_VALID_LINKS) void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u64 changed) @@ -317,7 +319,7 @@ static void ieee80211_tasklet_handler(struct tasklet_struct *t) break; case IEEE80211_TX_STATUS_MSG: skb->pkt_type = 0; - ieee80211_tx_status(&local->hw, skb); + ieee80211_tx_status_skb(&local->hw, skb); break; default: WARN(1, "mac80211: Packet is of unknown type %d\n", @@ -335,14 +337,12 @@ static void ieee80211_restart_work(struct work_struct *work) struct ieee80211_sub_if_data *sdata; int ret; - /* wait for scan work complete */ flush_workqueue(local->workqueue); - flush_work(&local->sched_scan_stopped_work); - flush_work(&local->radar_detected_work); rtnl_lock(); /* we might do interface manipulations, so need both */ wiphy_lock(local->hw.wiphy); + wiphy_work_flush(local->hw.wiphy, NULL); WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), "%s called with hardware scan in progress\n", __func__); @@ -366,21 +366,19 @@ static void ieee80211_restart_work(struct work_struct *work) */ wiphy_work_cancel(local->hw.wiphy, &sdata->u.mgd.csa_connection_drop_work); - if (sdata->vif.bss_conf.csa_active) { - sdata_lock(sdata); + if (sdata->vif.bss_conf.csa_active) ieee80211_sta_connection_lost(sdata, WLAN_REASON_UNSPECIFIED, false); - sdata_unlock(sdata); - } } - flush_delayed_work(&sdata->dec_tailroom_needed_wk); + wiphy_delayed_work_flush(local->hw.wiphy, + &sdata->dec_tailroom_needed_wk); } ieee80211_scan_cancel(local); /* make sure any new ROC will consider local->in_reconfig */ - flush_delayed_work(&local->roc_work); - flush_work(&local->hw_roc_done); + wiphy_delayed_work_flush(local->hw.wiphy, &local->roc_work); + wiphy_work_flush(local->hw.wiphy, &local->hw_roc_done); /* wait for all packet processing to be done */ synchronize_net(); @@ -439,7 +437,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, if (!wdev) return NOTIFY_DONE; - if (wdev->wiphy != local->hw.wiphy) + if (wdev->wiphy != local->hw.wiphy || !wdev->registered) return NOTIFY_DONE; sdata = IEEE80211_DEV_TO_SUB_IF(ndev); @@ -454,7 +452,25 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, return NOTIFY_DONE; ifmgd = &sdata->u.mgd; - sdata_lock(sdata); + + /* + * The nested here is needed to convince lockdep that this is + * all OK. Yes, we lock the wiphy mutex here while we already + * hold the notifier rwsem, that's the normal case. And yes, + * we also acquire the notifier rwsem again when unregistering + * a netdev while we already hold the wiphy mutex, so it does + * look like a typical ABBA deadlock. + * + * However, both of these things happen with the RTNL held + * already. Therefore, they can't actually happen, since the + * lock orders really are ABC and ACB, which is fine due to + * the RTNL (A). + * + * We still need to prevent recursion, which is accomplished + * by the !wdev->registered check above. + */ + mutex_lock_nested(&local->hw.wiphy->mtx, 1); + __acquire(&local->hw.wiphy->mtx); /* Copy the addresses to the vif config list */ ifa = rtnl_dereference(idev->ifa_list); @@ -471,7 +487,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb, if (ifmgd->associated) ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_ARP_FILTER); - sdata_unlock(sdata); + wiphy_unlock(local->hw.wiphy); return NOTIFY_OK; } @@ -784,9 +800,6 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, __hw_addr_init(&local->mc_list); mutex_init(&local->iflist_mtx); - mutex_init(&local->mtx); - - mutex_init(&local->key_mtx); spin_lock_init(&local->filter_lock); spin_lock_init(&local->rx_path_lock); spin_lock_init(&local->queue_stop_reason_lock); @@ -807,26 +820,25 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, spin_lock_init(&local->handle_wake_tx_queue_lock); INIT_LIST_HEAD(&local->chanctx_list); - mutex_init(&local->chanctx_mtx); - INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); + wiphy_delayed_work_init(&local->scan_work, ieee80211_scan_work); INIT_WORK(&local->restart_work, ieee80211_restart_work); - INIT_WORK(&local->radar_detected_work, - ieee80211_dfs_radar_detected_work); + wiphy_work_init(&local->radar_detected_work, + ieee80211_dfs_radar_detected_work); - INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); + wiphy_work_init(&local->reconfig_filter, ieee80211_reconfig_filter); local->smps_mode = IEEE80211_SMPS_OFF; - INIT_WORK(&local->dynamic_ps_enable_work, - ieee80211_dynamic_ps_enable_work); - INIT_WORK(&local->dynamic_ps_disable_work, - ieee80211_dynamic_ps_disable_work); + wiphy_work_init(&local->dynamic_ps_enable_work, + ieee80211_dynamic_ps_enable_work); + wiphy_work_init(&local->dynamic_ps_disable_work, + ieee80211_dynamic_ps_disable_work); timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); - INIT_WORK(&local->sched_scan_stopped_work, - ieee80211_sched_scan_stopped_work); + wiphy_work_init(&local->sched_scan_stopped_work, + ieee80211_sched_scan_stopped_work); spin_lock_init(&local->ack_status_lock); idr_init(&local->ack_status_frames); @@ -1055,6 +1067,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) supp_he = false; supp_eht = false; for (band = 0; band < NUM_NL80211_BANDS; band++) { + const struct ieee80211_sband_iftype_data *iftd; struct ieee80211_supported_band *sband; sband = local->hw.wiphy->bands[band]; @@ -1101,11 +1114,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) supp_ht = supp_ht || sband->ht_cap.ht_supported; supp_vht = supp_vht || sband->vht_cap.vht_supported; - for (i = 0; i < sband->n_iftype_data; i++) { - const struct ieee80211_sband_iftype_data *iftd; - - iftd = &sband->iftype_data[i]; - + for_each_sband_iftype_data(sband, i, iftd) { supp_he = supp_he || iftd->he_cap.has_he; supp_eht = supp_eht || iftd->eht_cap.has_eht; } @@ -1446,6 +1455,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ieee80211_remove_interfaces(local); rtnl_unlock(); fail_rate: + ieee80211_txq_teardown_flows(local); fail_flows: ieee80211_led_exit(local); destroy_workqueue(local->workqueue); @@ -1482,13 +1492,17 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) */ ieee80211_remove_interfaces(local); + ieee80211_txq_teardown_flows(local); + + wiphy_lock(local->hw.wiphy); + wiphy_delayed_work_cancel(local->hw.wiphy, &local->roc_work); + wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter); + wiphy_work_cancel(local->hw.wiphy, &local->sched_scan_stopped_work); + wiphy_work_cancel(local->hw.wiphy, &local->radar_detected_work); + wiphy_unlock(local->hw.wiphy); rtnl_unlock(); - cancel_delayed_work_sync(&local->roc_work); cancel_work_sync(&local->restart_work); - cancel_work_sync(&local->reconfig_filter); - flush_work(&local->sched_scan_stopped_work); - flush_work(&local->radar_detected_work); ieee80211_clear_tx_pending(local); rate_control_deinitialize(local); @@ -1519,7 +1533,6 @@ void ieee80211_free_hw(struct ieee80211_hw *hw) enum nl80211_band band; mutex_destroy(&local->iflist_mtx); - mutex_destroy(&local->mtx); if (local->wiphy_ciphers_allocated) { kfree(local->hw.wiphy->cipher_suites); |