diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-21 18:24:12 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-02-21 18:24:12 -0800 |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/wireless/ath/ath12k/ce.h | |
parent | 36289a03bcd3aabdf66de75cb6d1b4ee15726438 (diff) | |
parent | d1fabc68f8e0541d41657096dc713cb01775652d (diff) |
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().
...
Diffstat (limited to 'drivers/net/wireless/ath/ath12k/ce.h')
-rw-r--r-- | drivers/net/wireless/ath/ath12k/ce.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath12k/ce.h b/drivers/net/wireless/ath/ath12k/ce.h new file mode 100644 index 000000000000..17cf16235e0b --- /dev/null +++ b/drivers/net/wireless/ath/ath12k/ce.h @@ -0,0 +1,184 @@ +/* SPDX-License-Identifier: BSD-3-Clause-Clear */ +/* + * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. + * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef ATH12K_CE_H +#define ATH12K_CE_H + +#define CE_COUNT_MAX 16 + +/* Byte swap data words */ +#define CE_ATTR_BYTE_SWAP_DATA 2 + +/* no interrupt on copy completion */ +#define CE_ATTR_DIS_INTR 8 + +/* Host software's Copy Engine configuration. */ +#define CE_ATTR_FLAGS 0 + +/* Threshold to poll for tx completion in case of Interrupt disabled CE's */ +#define ATH12K_CE_USAGE_THRESHOLD 32 + +/* Directions for interconnect pipe configuration. + * These definitions may be used during configuration and are shared + * between Host and Target. + * + * Pipe Directions are relative to the Host, so PIPEDIR_IN means + * "coming IN over air through Target to Host" as with a WiFi Rx operation. + * Conversely, PIPEDIR_OUT means "going OUT from Host through Target over air" + * as with a WiFi Tx operation. This is somewhat awkward for the "middle-man" + * Target since things that are "PIPEDIR_OUT" are coming IN to the Target + * over the interconnect. + */ +#define PIPEDIR_NONE 0 +#define PIPEDIR_IN 1 /* Target-->Host, WiFi Rx direction */ +#define PIPEDIR_OUT 2 /* Host->Target, WiFi Tx direction */ +#define PIPEDIR_INOUT 3 /* bidirectional */ +#define PIPEDIR_INOUT_H2H 4 /* bidirectional, host to host */ + +/* CE address/mask */ +#define CE_HOST_IE_ADDRESS 0x00A1803C +#define CE_HOST_IE_2_ADDRESS 0x00A18040 +#define CE_HOST_IE_3_ADDRESS CE_HOST_IE_ADDRESS + +#define CE_HOST_IE_3_SHIFT 0xC + +#define CE_RING_IDX_INCR(nentries_mask, idx) (((idx) + 1) & (nentries_mask)) + +#define ATH12K_CE_RX_POST_RETRY_JIFFIES 50 + +struct ath12k_base; + +/* Establish a mapping between a service/direction and a pipe. + * Configuration information for a Copy Engine pipe and services. + * Passed from Host to Target through QMI message and must be in + * little endian format. + */ +struct service_to_pipe { + __le32 service_id; + __le32 pipedir; + __le32 pipenum; +}; + +/* Configuration information for a Copy Engine pipe. + * Passed from Host to Target through QMI message during startup (one per CE). + * + * NOTE: Structure is shared between Host software and Target firmware! + */ +struct ce_pipe_config { + __le32 pipenum; + __le32 pipedir; + __le32 nentries; + __le32 nbytes_max; + __le32 flags; + __le32 reserved; +}; + +struct ce_attr { + /* CE_ATTR_* values */ + unsigned int flags; + + /* #entries in source ring - Must be a power of 2 */ + unsigned int src_nentries; + + /* Max source send size for this CE. + * This is also the minimum size of a destination buffer. + */ + unsigned int src_sz_max; + + /* #entries in destination ring - Must be a power of 2 */ + unsigned int dest_nentries; + + void (*recv_cb)(struct ath12k_base *ab, struct sk_buff *skb); +}; + +#define CE_DESC_RING_ALIGN 8 + +struct ath12k_ce_ring { + /* Number of entries in this ring; must be power of 2 */ + unsigned int nentries; + unsigned int nentries_mask; + + /* For dest ring, this is the next index to be processed + * by software after it was/is received into. + * + * For src ring, this is the last descriptor that was sent + * and completion processed by software. + * + * Regardless of src or dest ring, this is an invariant + * (modulo ring size): + * write index >= read index >= sw_index + */ + unsigned int sw_index; + /* cached copy */ + unsigned int write_index; + + /* Start of DMA-coherent area reserved for descriptors */ + /* Host address space */ + void *base_addr_owner_space_unaligned; + /* CE address space */ + u32 base_addr_ce_space_unaligned; + + /* Actual start of descriptors. + * Aligned to descriptor-size boundary. + * Points into reserved DMA-coherent area, above. + */ + /* Host address space */ + void *base_addr_owner_space; + + /* CE address space */ + u32 base_addr_ce_space; + + /* HAL ring id */ + u32 hal_ring_id; + + /* keep last */ + struct sk_buff *skb[]; +}; + +struct ath12k_ce_pipe { + struct ath12k_base *ab; + u16 pipe_num; + unsigned int attr_flags; + unsigned int buf_sz; + unsigned int rx_buf_needed; + + void (*send_cb)(struct ath12k_ce_pipe *pipe); + void (*recv_cb)(struct ath12k_base *ab, struct sk_buff *skb); + + struct tasklet_struct intr_tq; + struct ath12k_ce_ring *src_ring; + struct ath12k_ce_ring *dest_ring; + struct ath12k_ce_ring *status_ring; + u64 timestamp; +}; + +struct ath12k_ce { + struct ath12k_ce_pipe ce_pipe[CE_COUNT_MAX]; + /* Protects rings of all ce pipes */ + spinlock_t ce_lock; + struct ath12k_hp_update_timer hp_timer[CE_COUNT_MAX]; +}; + +extern const struct ce_attr ath12k_host_ce_config_qcn9274[]; +extern const struct ce_attr ath12k_host_ce_config_wcn7850[]; + +void ath12k_ce_cleanup_pipes(struct ath12k_base *ab); +void ath12k_ce_rx_replenish_retry(struct timer_list *t); +void ath12k_ce_per_engine_service(struct ath12k_base *ab, u16 ce_id); +int ath12k_ce_send(struct ath12k_base *ab, struct sk_buff *skb, u8 pipe_id, + u16 transfer_id); +void ath12k_ce_rx_post_buf(struct ath12k_base *ab); +int ath12k_ce_init_pipes(struct ath12k_base *ab); +int ath12k_ce_alloc_pipes(struct ath12k_base *ab); +void ath12k_ce_free_pipes(struct ath12k_base *ab); +int ath12k_ce_get_attr_flags(struct ath12k_base *ab, int ce_id); +void ath12k_ce_poll_send_completed(struct ath12k_base *ab, u8 pipe_id); +int ath12k_ce_map_service_to_pipe(struct ath12k_base *ab, u16 service_id, + u8 *ul_pipe, u8 *dl_pipe); +int ath12k_ce_attr_attach(struct ath12k_base *ab); +void ath12k_ce_get_shadow_config(struct ath12k_base *ab, + u32 **shadow_cfg, u32 *shadow_cfg_len); +#endif |