From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/wireless/ath/wil6210/netdev.c | 558 ++++++++++++++++++++++++++++++ 1 file changed, 558 insertions(+) create mode 100644 drivers/net/wireless/ath/wil6210/netdev.c (limited to 'drivers/net/wireless/ath/wil6210/netdev.c') diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c new file mode 100644 index 000000000..ee7d7e9c2 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -0,0 +1,558 @@ +// SPDX-License-Identifier: ISC +/* + * Copyright (c) 2012-2017 Qualcomm Atheros, Inc. + * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include "wil6210.h" +#include "txrx.h" + +bool wil_has_other_active_ifaces(struct wil6210_priv *wil, + struct net_device *ndev, bool up, bool ok) +{ + int i; + struct wil6210_vif *vif; + struct net_device *ndev_i; + + for (i = 0; i < GET_MAX_VIFS(wil); i++) { + vif = wil->vifs[i]; + if (vif) { + ndev_i = vif_to_ndev(vif); + if (ndev_i != ndev) + if ((up && (ndev_i->flags & IFF_UP)) || + (ok && netif_carrier_ok(ndev_i))) + return true; + } + } + + return false; +} + +bool wil_has_active_ifaces(struct wil6210_priv *wil, bool up, bool ok) +{ + /* use NULL ndev argument to check all interfaces */ + return wil_has_other_active_ifaces(wil, NULL, up, ok); +} + +static int wil_open(struct net_device *ndev) +{ + struct wil6210_priv *wil = ndev_to_wil(ndev); + int rc = 0; + + wil_dbg_misc(wil, "open\n"); + + if (debug_fw || + test_bit(WMI_FW_CAPABILITY_WMI_ONLY, wil->fw_capabilities)) { + wil_err(wil, "while in debug_fw or wmi_only mode\n"); + return -EINVAL; + } + + if (!wil_has_other_active_ifaces(wil, ndev, true, false)) { + wil_dbg_misc(wil, "open, first iface\n"); + rc = wil_pm_runtime_get(wil); + if (rc < 0) + return rc; + + rc = wil_up(wil); + if (rc) + wil_pm_runtime_put(wil); + } + + return rc; +} + +static int wil_stop(struct net_device *ndev) +{ + struct wil6210_priv *wil = ndev_to_wil(ndev); + int rc = 0; + + wil_dbg_misc(wil, "stop\n"); + + if (!wil_has_other_active_ifaces(wil, ndev, true, false)) { + wil_dbg_misc(wil, "stop, last iface\n"); + rc = wil_down(wil); + if (!rc) + wil_pm_runtime_put(wil); + } + + return rc; +} + +static const struct net_device_ops wil_netdev_ops = { + .ndo_open = wil_open, + .ndo_stop = wil_stop, + .ndo_start_xmit = wil_start_xmit, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget) +{ + struct wil6210_priv *wil = container_of(napi, struct wil6210_priv, + napi_rx); + int quota = budget; + int done; + + wil_rx_handle(wil, "a); + done = budget - quota; + + if (done < budget) { + napi_complete_done(napi, done); + wil6210_unmask_irq_rx(wil); + wil_dbg_txrx(wil, "NAPI RX complete\n"); + } + + wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done); + + return done; +} + +static int wil6210_netdev_poll_rx_edma(struct napi_struct *napi, int budget) +{ + struct wil6210_priv *wil = container_of(napi, struct wil6210_priv, + napi_rx); + int quota = budget; + int done; + + wil_rx_handle_edma(wil, "a); + done = budget - quota; + + if (done < budget) { + napi_complete_done(napi, done); + wil6210_unmask_irq_rx_edma(wil); + wil_dbg_txrx(wil, "NAPI RX complete\n"); + } + + wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done); + + return done; +} + +static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget) +{ + struct wil6210_priv *wil = container_of(napi, struct wil6210_priv, + napi_tx); + int tx_done = 0; + uint i; + + /* always process ALL Tx complete, regardless budget - it is fast */ + for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) { + struct wil_ring *ring = &wil->ring_tx[i]; + struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i]; + struct wil6210_vif *vif; + + if (!ring->va || !txdata->enabled || + txdata->mid >= GET_MAX_VIFS(wil)) + continue; + + vif = wil->vifs[txdata->mid]; + if (unlikely(!vif)) { + wil_dbg_txrx(wil, "Invalid MID %d\n", txdata->mid); + continue; + } + + tx_done += wil_tx_complete(vif, i); + } + + if (tx_done < budget) { + napi_complete(napi); + wil6210_unmask_irq_tx(wil); + wil_dbg_txrx(wil, "NAPI TX complete\n"); + } + + wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done); + + return min(tx_done, budget); +} + +static int wil6210_netdev_poll_tx_edma(struct napi_struct *napi, int budget) +{ + struct wil6210_priv *wil = container_of(napi, struct wil6210_priv, + napi_tx); + int tx_done; + /* There is only one status TX ring */ + struct wil_status_ring *sring = &wil->srings[wil->tx_sring_idx]; + + if (!sring->va) + return 0; + + tx_done = wil_tx_sring_handler(wil, sring); + + if (tx_done < budget) { + napi_complete(napi); + wil6210_unmask_irq_tx_edma(wil); + wil_dbg_txrx(wil, "NAPI TX complete\n"); + } + + wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done); + + return min(tx_done, budget); +} + +static void wil_dev_setup(struct net_device *dev) +{ + ether_setup(dev); + dev->max_mtu = mtu_max; + dev->tx_queue_len = WIL_TX_Q_LEN_DEFAULT; +} + +static void wil_vif_deinit(struct wil6210_vif *vif) +{ + del_timer_sync(&vif->scan_timer); + del_timer_sync(&vif->p2p.discovery_timer); + cancel_work_sync(&vif->disconnect_worker); + cancel_work_sync(&vif->p2p.discovery_expired_work); + cancel_work_sync(&vif->p2p.delayed_listen_work); + wil_probe_client_flush(vif); + cancel_work_sync(&vif->probe_client_worker); + cancel_work_sync(&vif->enable_tx_key_worker); +} + +void wil_vif_free(struct wil6210_vif *vif) +{ + struct net_device *ndev = vif_to_ndev(vif); + + wil_vif_deinit(vif); + free_netdev(ndev); +} + +static void wil_ndev_destructor(struct net_device *ndev) +{ + struct wil6210_vif *vif = ndev_to_vif(ndev); + + wil_vif_deinit(vif); +} + +static void wil_connect_timer_fn(struct timer_list *t) +{ + struct wil6210_vif *vif = from_timer(vif, t, connect_timer); + struct wil6210_priv *wil = vif_to_wil(vif); + bool q; + + wil_err(wil, "Connect timeout detected, disconnect station\n"); + + /* reschedule to thread context - disconnect won't + * run from atomic context. + * queue on wmi_wq to prevent race with connect event. + */ + q = queue_work(wil->wmi_wq, &vif->disconnect_worker); + wil_dbg_wmi(wil, "queue_work of disconnect_worker -> %d\n", q); +} + +static void wil_scan_timer_fn(struct timer_list *t) +{ + struct wil6210_vif *vif = from_timer(vif, t, scan_timer); + struct wil6210_priv *wil = vif_to_wil(vif); + + clear_bit(wil_status_fwready, wil->status); + wil_err(wil, "Scan timeout detected, start fw error recovery\n"); + wil_fw_error_recovery(wil); +} + +static void wil_p2p_discovery_timer_fn(struct timer_list *t) +{ + struct wil6210_vif *vif = from_timer(vif, t, p2p.discovery_timer); + struct wil6210_priv *wil = vif_to_wil(vif); + + wil_dbg_misc(wil, "p2p_discovery_timer_fn\n"); + + schedule_work(&vif->p2p.discovery_expired_work); +} + +static void wil_vif_init(struct wil6210_vif *vif) +{ + vif->bcast_ring = -1; + + mutex_init(&vif->probe_client_mutex); + + timer_setup(&vif->connect_timer, wil_connect_timer_fn, 0); + timer_setup(&vif->scan_timer, wil_scan_timer_fn, 0); + timer_setup(&vif->p2p.discovery_timer, wil_p2p_discovery_timer_fn, 0); + + INIT_WORK(&vif->probe_client_worker, wil_probe_client_worker); + INIT_WORK(&vif->disconnect_worker, wil_disconnect_worker); + INIT_WORK(&vif->p2p.discovery_expired_work, wil_p2p_listen_expired); + INIT_WORK(&vif->p2p.delayed_listen_work, wil_p2p_delayed_listen_work); + INIT_WORK(&vif->enable_tx_key_worker, wil_enable_tx_key_worker); + + INIT_LIST_HEAD(&vif->probe_client_pending); + + vif->net_queue_stopped = 1; +} + +static u8 wil_vif_find_free_mid(struct wil6210_priv *wil) +{ + u8 i; + + for (i = 0; i < GET_MAX_VIFS(wil); i++) { + if (!wil->vifs[i]) + return i; + } + + return U8_MAX; +} + +struct wil6210_vif * +wil_vif_alloc(struct wil6210_priv *wil, const char *name, + unsigned char name_assign_type, enum nl80211_iftype iftype) +{ + struct net_device *ndev; + struct wireless_dev *wdev; + struct wil6210_vif *vif; + u8 mid; + + mid = wil_vif_find_free_mid(wil); + if (mid == U8_MAX) { + wil_err(wil, "no available virtual interface\n"); + return ERR_PTR(-EINVAL); + } + + ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, + wil_dev_setup); + if (!ndev) { + dev_err(wil_to_dev(wil), "alloc_netdev failed\n"); + return ERR_PTR(-ENOMEM); + } + if (mid == 0) { + wil->main_ndev = ndev; + } else { + ndev->priv_destructor = wil_ndev_destructor; + ndev->needs_free_netdev = true; + } + + vif = ndev_to_vif(ndev); + vif->ndev = ndev; + vif->wil = wil; + vif->mid = mid; + wil_vif_init(vif); + + wdev = &vif->wdev; + wdev->wiphy = wil->wiphy; + wdev->iftype = iftype; + + ndev->netdev_ops = &wil_netdev_ops; + wil_set_ethtoolops(ndev); + ndev->ieee80211_ptr = wdev; + ndev->hw_features = NETIF_F_HW_CSUM | NETIF_F_RXCSUM | + NETIF_F_SG | NETIF_F_GRO | + NETIF_F_TSO | NETIF_F_TSO6; + + ndev->features |= ndev->hw_features; + SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy)); + wdev->netdev = ndev; + return vif; +} + +void *wil_if_alloc(struct device *dev) +{ + struct wil6210_priv *wil; + struct wil6210_vif *vif; + int rc = 0; + + wil = wil_cfg80211_init(dev); + if (IS_ERR(wil)) { + dev_err(dev, "wil_cfg80211_init failed\n"); + return wil; + } + + rc = wil_priv_init(wil); + if (rc) { + dev_err(dev, "wil_priv_init failed\n"); + goto out_cfg; + } + + wil_dbg_misc(wil, "if_alloc\n"); + + vif = wil_vif_alloc(wil, "wlan%d", NET_NAME_UNKNOWN, + NL80211_IFTYPE_STATION); + if (IS_ERR(vif)) { + dev_err(dev, "wil_vif_alloc failed\n"); + rc = -ENOMEM; + goto out_priv; + } + + wil->radio_wdev = vif_to_wdev(vif); + + return wil; + +out_priv: + wil_priv_deinit(wil); + +out_cfg: + wil_cfg80211_deinit(wil); + + return ERR_PTR(rc); +} + +void wil_if_free(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil->main_ndev; + + wil_dbg_misc(wil, "if_free\n"); + + if (!ndev) + return; + + wil_priv_deinit(wil); + + wil->main_ndev = NULL; + wil_ndev_destructor(ndev); + free_netdev(ndev); + + wil_cfg80211_deinit(wil); +} + +int wil_vif_add(struct wil6210_priv *wil, struct wil6210_vif *vif) +{ + struct net_device *ndev = vif_to_ndev(vif); + struct wireless_dev *wdev = vif_to_wdev(vif); + bool any_active = wil_has_active_ifaces(wil, true, false); + int rc; + + ASSERT_RTNL(); + + if (wil->vifs[vif->mid]) { + dev_err(&ndev->dev, "VIF with mid %d already in use\n", + vif->mid); + return -EEXIST; + } + if (any_active && vif->mid != 0) { + rc = wmi_port_allocate(wil, vif->mid, ndev->dev_addr, + wdev->iftype); + if (rc) + return rc; + } + rc = cfg80211_register_netdevice(ndev); + if (rc < 0) { + dev_err(&ndev->dev, "Failed to register netdev: %d\n", rc); + if (any_active && vif->mid != 0) + wmi_port_delete(wil, vif->mid); + return rc; + } + + wil->vifs[vif->mid] = vif; + return 0; +} + +int wil_if_add(struct wil6210_priv *wil) +{ + struct wiphy *wiphy = wil->wiphy; + struct net_device *ndev = wil->main_ndev; + struct wil6210_vif *vif = ndev_to_vif(ndev); + int rc; + + wil_dbg_misc(wil, "entered"); + + strscpy(wiphy->fw_version, wil->fw_version, sizeof(wiphy->fw_version)); + + rc = wiphy_register(wiphy); + if (rc < 0) { + wil_err(wil, "failed to register wiphy, err %d\n", rc); + return rc; + } + + init_dummy_netdev(&wil->napi_ndev); + if (wil->use_enhanced_dma_hw) { + netif_napi_add(&wil->napi_ndev, &wil->napi_rx, + wil6210_netdev_poll_rx_edma); + netif_napi_add_tx(&wil->napi_ndev, + &wil->napi_tx, wil6210_netdev_poll_tx_edma); + } else { + netif_napi_add(&wil->napi_ndev, &wil->napi_rx, + wil6210_netdev_poll_rx); + netif_napi_add_tx(&wil->napi_ndev, + &wil->napi_tx, wil6210_netdev_poll_tx); + } + + wil_update_net_queues_bh(wil, vif, NULL, true); + + rtnl_lock(); + wiphy_lock(wiphy); + rc = wil_vif_add(wil, vif); + wiphy_unlock(wiphy); + rtnl_unlock(); + if (rc < 0) + goto out_wiphy; + + return 0; + +out_wiphy: + wiphy_unregister(wiphy); + return rc; +} + +void wil_vif_remove(struct wil6210_priv *wil, u8 mid) +{ + struct wil6210_vif *vif; + struct net_device *ndev; + bool any_active = wil_has_active_ifaces(wil, true, false); + + ASSERT_RTNL(); + if (mid >= GET_MAX_VIFS(wil)) { + wil_err(wil, "invalid MID: %d\n", mid); + return; + } + + vif = wil->vifs[mid]; + if (!vif) { + wil_err(wil, "MID %d not registered\n", mid); + return; + } + + mutex_lock(&wil->mutex); + wil6210_disconnect(vif, NULL, WLAN_REASON_DEAUTH_LEAVING); + mutex_unlock(&wil->mutex); + + ndev = vif_to_ndev(vif); + /* during unregister_netdevice cfg80211_leave may perform operations + * such as stop AP, disconnect, so we only clear the VIF afterwards + */ + cfg80211_unregister_netdevice(ndev); + + if (any_active && vif->mid != 0) + wmi_port_delete(wil, vif->mid); + + /* make sure no one is accessing the VIF before removing */ + mutex_lock(&wil->vif_mutex); + wil->vifs[mid] = NULL; + /* ensure NAPI code will see the NULL VIF */ + wmb(); + if (test_bit(wil_status_napi_en, wil->status)) { + napi_synchronize(&wil->napi_rx); + napi_synchronize(&wil->napi_tx); + } + mutex_unlock(&wil->vif_mutex); + + flush_work(&wil->wmi_event_worker); + del_timer_sync(&vif->connect_timer); + cancel_work_sync(&vif->disconnect_worker); + wil_probe_client_flush(vif); + cancel_work_sync(&vif->probe_client_worker); + cancel_work_sync(&vif->enable_tx_key_worker); + /* for VIFs, ndev will be freed by destructor after RTNL is unlocked. + * the main interface will be freed in wil_if_free, we need to keep it + * a bit longer so logging macros will work. + */ +} + +void wil_if_remove(struct wil6210_priv *wil) +{ + struct net_device *ndev = wil->main_ndev; + struct wireless_dev *wdev = ndev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; + + wil_dbg_misc(wil, "if_remove\n"); + + rtnl_lock(); + wiphy_lock(wiphy); + wil_vif_remove(wil, 0); + wiphy_unlock(wiphy); + rtnl_unlock(); + + netif_napi_del(&wil->napi_tx); + netif_napi_del(&wil->napi_rx); + + wiphy_unregister(wiphy); +} -- cgit v1.2.3