diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-04 13:38:03 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-04 13:38:03 -0700 |
commit | 0326074ff4652329f2a1a9c8685104576bd8d131 (patch) | |
tree | 9a7574c7ccb05bf4c7cb34fc5a65457bb8f495cb /drivers/net/wireless/mediatek/mt76/mt7921/mac.c | |
parent | 522667b24f08009591c90e75bfe2ffb67f555498 (diff) | |
parent | 681bf011b9b5989c6e9db6beb64494918aab9a43 (diff) |
Merge tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- Introduce and use a single page frag cache for allocating small skb
heads, clawing back the 10-20% performance regression in UDP flood
test from previous fixes.
- Run packets which already went thru HW coalescing thru SW GRO. This
significantly improves TCP segment coalescing and simplifies
deployments as different workloads benefit from HW or SW GRO.
- Shrink the size of the base zero-copy send structure.
- Move TCP init under a new slow / sleepable version of DO_ONCE().
BPF:
- Add BPF-specific, any-context-safe memory allocator.
- Add helpers/kfuncs for PKCS#7 signature verification from BPF
programs.
- Define a new map type and related helpers for user space -> kernel
communication over a ring buffer (BPF_MAP_TYPE_USER_RINGBUF).
- Allow targeting BPF iterators to loop through resources of one
task/thread.
- Add ability to call selected destructive functions. Expose
crash_kexec() to allow BPF to trigger a kernel dump. Use
CAP_SYS_BOOT check on the loading process to judge permissions.
- Enable BPF to collect custom hierarchical cgroup stats efficiently
by integrating with the rstat framework.
- Support struct arguments for trampoline based programs. Only
structs with size <= 16B and x86 are supported.
- Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping
sockets (instead of just TCP and UDP sockets).
- Add a helper for accessing CLOCK_TAI for time sensitive network
related programs.
- Support accessing network tunnel metadata's flags.
- Make TCP SYN ACK RTO tunable by BPF programs with TCP Fast Open.
- Add support for writing to Netfilter's nf_conn:mark.
Protocols:
- WiFi: more Extremely High Throughput (EHT) and Multi-Link Operation
(MLO) work (802.11be, WiFi 7).
- vsock: improve support for SO_RCVLOWAT.
- SMC: support SO_REUSEPORT.
- Netlink: define and document how to use netlink in a "modern" way.
Support reporting missing attributes via extended ACK.
- IPSec: support collect metadata mode for xfrm interfaces.
- TCPv6: send consistent autoflowlabel in SYN_RECV state and RST
packets.
- TCP: introduce optional per-netns connection hash table to allow
better isolation between namespaces (opt-in, at the cost of memory
and cache pressure).
- MPTCP: support TCP_FASTOPEN_CONNECT.
- Add NEXT-C-SID support in Segment Routing (SRv6) End behavior.
- Adjust IP_UNICAST_IF sockopt behavior for connected UDP sockets.
- Open vSwitch:
- Allow specifying ifindex of new interfaces.
- Allow conntrack and metering in non-initial user namespace.
- TLS: support the Korean ARIA-GCM crypto algorithm.
- Remove DECnet support.
Driver API:
- Allow selecting the conduit interface used by each port in DSA
switches, at runtime.
- Ethernet Power Sourcing Equipment and Power Device support.
- Add tc-taprio support for queueMaxSDU parameter, i.e. setting per
traffic class max frame size for time-based packet schedules.
- Support PHY rate matching - adapting between differing host-side
and link-side speeds.
- Introduce QUSGMII PHY mode and 1000BASE-KX interface mode.
- Validate OF (device tree) nodes for DSA shared ports; make
phylink-related properties mandatory on DSA and CPU ports.
Enforcing more uniformity should allow transitioning to phylink.
- Require that flash component name used during update matches one of
the components for which version is reported by info_get().
- Remove "weight" argument from driver-facing NAPI API as much as
possible. It's one of those magic knobs which seemed like a good
idea at the time but is too indirect to use in practice.
- Support offload of TLS connections with 256 bit keys.
New hardware / drivers:
- Ethernet:
- Microchip KSZ9896 6-port Gigabit Ethernet Switch
- Renesas Ethernet AVB (EtherAVB-IF) Gen4 SoCs
- Analog Devices ADIN1110 and ADIN2111 industrial single pair
Ethernet (10BASE-T1L) MAC+PHY.
- Rockchip RV1126 Gigabit Ethernet (a version of stmmac IP).
- Ethernet SFPs / modules:
- RollBall / Hilink / Turris 10G copper SFPs
- HALNy GPON module
- WiFi:
- CYW43439 SDIO chipset (brcmfmac)
- CYW89459 PCIe chipset (brcmfmac)
- BCM4378 on Apple platforms (brcmfmac)
Drivers:
- CAN:
- gs_usb: HW timestamp support
- Ethernet PHYs:
- lan8814: cable diagnostics
- Ethernet NICs:
- Intel (100G):
- implement control of FCS/CRC stripping
- port splitting via devlink
- L2TPv3 filtering offload
- nVidia/Mellanox:
- tunnel offload for sub-functions
- MACSec offload, w/ Extended packet number and replay window
offload
- significantly restructure, and optimize the AF_XDP support,
align the behavior with other vendors
- Huawei:
- configuring DSCP map for traffic class selection
- querying standard FEC statistics
- querying SerDes lane number via ethtool
- Marvell/Cavium:
- egress priority flow control
- MACSec offload
- AMD/SolarFlare:
- PTP over IPv6 and raw Ethernet
- small / embedded:
- ax88772: convert to phylink (to support SFP cages)
- altera: tse: convert to phylink
- ftgmac100: support fixed link
- enetc: standard Ethtool counters
- macb: ZynqMP SGMII dynamic configuration support
- tsnep: support multi-queue and use page pool
- lan743x: Rx IP & TCP checksum offload
- igc: add xdp frags support to ndo_xdp_xmit
- Ethernet high-speed switches:
- Marvell (prestera):
- support SPAN port features (traffic mirroring)
- nexthop object offloading
- Microchip (sparx5):
- multicast forwarding offload
- QoS queuing offload (tc-mqprio, tc-tbf, tc-ets)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- support RGMII cmode
- NXP (felix):
- standardized ethtool counters
- Microchip (lan966x):
- QoS queuing offload (tc-mqprio, tc-tbf, tc-cbs, tc-ets)
- traffic policing and mirroring
- link aggregation / bonding offload
- QUSGMII PHY mode support
- Qualcomm 802.11ax WiFi (ath11k):
- cold boot calibration support on WCN6750
- support to connect to a non-transmit MBSSID AP profile
- enable remain-on-channel support on WCN6750
- Wake-on-WLAN support for WCN6750
- support to provide transmit power from firmware via nl80211
- support to get power save duration for each client
- spectral scan support for 160 MHz
- MediaTek WiFi (mt76):
- WiFi-to-Ethernet bridging offload for MT7986 chips
- RealTek WiFi (rtw89):
- P2P support"
* tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1864 commits)
eth: pse: add missing static inlines
once: rename _SLOW to _SLEEPABLE
net: pse-pd: add regulator based PSE driver
dt-bindings: net: pse-dt: add bindings for regulator based PoDL PSE controller
ethtool: add interface to interact with Ethernet Power Equipment
net: mdiobus: search for PSE nodes by parsing PHY nodes.
net: mdiobus: fwnode_mdiobus_register_phy() rework error handling
net: add framework to support Ethernet PSE and PDs devices
dt-bindings: net: phy: add PoDL PSE property
net: marvell: prestera: Propagate nh state from hw to kernel
net: marvell: prestera: Add neighbour cache accounting
net: marvell: prestera: add stub handler neighbour events
net: marvell: prestera: Add heplers to interact with fib_notifier_info
net: marvell: prestera: Add length macros for prestera_ip_addr
net: marvell: prestera: add delayed wq and flush wq on deinit
net: marvell: prestera: Add strict cleanup of fib arbiter
net: marvell: prestera: Add cleanup of allocated fib_nodes
net: marvell: prestera: Add router nexthops ABI
eth: octeon: fix build after netif_napi_add() changes
net/mlx5: E-Switch, Return EBUSY if can't get mode lock
...
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/mac.c')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 147 |
1 files changed, 141 insertions, 6 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 47f0aa81ab02..e4868c492bc0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -235,7 +235,7 @@ mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) u32 rxd2 = le32_to_cpu(rxd[2]); u32 rxd3 = le32_to_cpu(rxd[3]); u32 rxd4 = le32_to_cpu(rxd[4]); - struct mt7921_sta *msta; + struct mt7921_sta *msta = NULL; u16 seq_ctrl = 0; __le16 fc = 0; u8 mode = 0; @@ -486,7 +486,7 @@ mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) return 0; } -void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) +static void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) { struct mt7921_sta *msta; u16 fc, tid; @@ -509,7 +509,6 @@ void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) if (!test_and_set_bit(tid, &msta->ampdu_state)) ieee80211_start_tx_ba_session(sta, tid, 0); } -EXPORT_SYMBOL_GPL(mt7921_tx_check_aggr); void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) { @@ -539,8 +538,7 @@ void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) msta = container_of(wcid, struct mt7921_sta, wcid); - mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data, - &msta->stats); + mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data); if (!wcid->sta) goto out; @@ -552,7 +550,134 @@ void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) out: rcu_read_unlock(); } -EXPORT_SYMBOL_GPL(mt7921_mac_add_txs); + +void mt7921_txwi_free(struct mt7921_dev *dev, struct mt76_txwi_cache *t, + struct ieee80211_sta *sta, bool clear_status, + struct list_head *free_list) +{ + struct mt76_dev *mdev = &dev->mt76; + __le32 *txwi; + u16 wcid_idx; + + mt76_connac_txp_skb_unmap(mdev, t); + if (!t->skb) + goto out; + + txwi = (__le32 *)mt76_get_txwi_ptr(mdev, t); + if (sta) { + struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; + + if (likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE))) + mt7921_tx_check_aggr(sta, txwi); + + wcid_idx = wcid->idx; + } else { + wcid_idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX); + } + + __mt76_tx_complete_skb(mdev, wcid_idx, t->skb, free_list); +out: + t->skb = NULL; + mt76_put_txwi(mdev, t); +} +EXPORT_SYMBOL_GPL(mt7921_txwi_free); + +static void mt7921_mac_tx_free(struct mt7921_dev *dev, void *data, int len) +{ + struct mt76_connac_tx_free *free = data; + __le32 *tx_info = (__le32 *)(data + sizeof(*free)); + struct mt76_dev *mdev = &dev->mt76; + struct mt76_txwi_cache *txwi; + struct ieee80211_sta *sta = NULL; + struct sk_buff *skb, *tmp; + void *end = data + len; + LIST_HEAD(free_list); + bool wake = false; + u8 i, count; + + /* clean DMA queues and unmap buffers first */ + mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false); + mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_BE], false); + + count = le16_get_bits(free->ctrl, MT_TX_FREE_MSDU_CNT); + if (WARN_ON_ONCE((void *)&tx_info[count] > end)) + return; + + for (i = 0; i < count; i++) { + u32 msdu, info = le32_to_cpu(tx_info[i]); + u8 stat; + + /* 1'b1: new wcid pair. + * 1'b0: msdu_id with the same 'wcid pair' as above. + */ + if (info & MT_TX_FREE_PAIR) { + struct mt7921_sta *msta; + struct mt76_wcid *wcid; + u16 idx; + + count++; + idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info); + wcid = rcu_dereference(dev->mt76.wcid[idx]); + sta = wcid_to_sta(wcid); + if (!sta) + continue; + + msta = container_of(wcid, struct mt7921_sta, wcid); + spin_lock_bh(&dev->sta_poll_lock); + if (list_empty(&msta->poll_list)) + list_add_tail(&msta->poll_list, &dev->sta_poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + continue; + } + + msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); + stat = FIELD_GET(MT_TX_FREE_STATUS, info); + + txwi = mt76_token_release(mdev, msdu, &wake); + if (!txwi) + continue; + + mt7921_txwi_free(dev, txwi, sta, stat, &free_list); + } + + if (wake) + mt76_set_tx_blocked(&dev->mt76, false); + + list_for_each_entry_safe(skb, tmp, &free_list, list) { + skb_list_del_init(skb); + napi_consume_skb(skb, 1); + } + + rcu_read_lock(); + mt7921_mac_sta_poll(dev); + rcu_read_unlock(); + + mt76_worker_schedule(&dev->mt76.tx_worker); +} + +bool mt7921_rx_check(struct mt76_dev *mdev, void *data, int len) +{ + struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); + __le32 *rxd = (__le32 *)data; + __le32 *end = (__le32 *)&rxd[len / 4]; + enum rx_pkt_type type; + + type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); + + switch (type) { + case PKT_TYPE_TXRX_NOTIFY: + /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ + mt7921_mac_tx_free(dev, data, len); /* mmio */ + return false; + case PKT_TYPE_TXS: + for (rxd += 2; rxd + 8 <= end; rxd += 8) + mt7921_mac_add_txs(dev, rxd); + return false; + default: + return true; + } +} +EXPORT_SYMBOL_GPL(mt7921_rx_check); void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, struct sk_buff *skb) @@ -570,6 +695,11 @@ void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, type = PKT_TYPE_NORMAL_MCU; switch (type) { + case PKT_TYPE_TXRX_NOTIFY: + /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ + mt7921_mac_tx_free(dev, skb->data, skb->len); + napi_consume_skb(skb, 1); + break; case PKT_TYPE_RX_EVENT: mt7921_mcu_rx_event(dev, skb); break; @@ -780,6 +910,7 @@ void mt7921_mac_reset_work(struct work_struct *work) void mt7921_reset(struct mt76_dev *mdev) { struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); + struct mt76_connac_pm *pm = &dev->pm; if (!dev->hw_init_done) return; @@ -787,8 +918,12 @@ void mt7921_reset(struct mt76_dev *mdev) if (dev->hw_full_reset) return; + if (pm->suspended) + return; + queue_work(dev->mt76.wq, &dev->reset_work); } +EXPORT_SYMBOL_GPL(mt7921_reset); void mt7921_mac_update_mib_stats(struct mt7921_phy *phy) { |