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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/wireless/mediatek/mt76/mt7915/dma.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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 '')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7915/dma.c649
1 files changed, 649 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/dma.c b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
new file mode 100644
index 000000000..abe17dac9
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/dma.c
@@ -0,0 +1,649 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2020 MediaTek Inc. */
+
+#include "mt7915.h"
+#include "../dma.h"
+#include "mac.h"
+
+static int
+mt7915_init_tx_queues(struct mt7915_phy *phy, int idx, int n_desc, int ring_base)
+{
+ struct mt7915_dev *dev = phy->dev;
+
+ if (mtk_wed_device_active(&phy->dev->mt76.mmio.wed)) {
+ if (is_mt7986(&dev->mt76))
+ ring_base += MT_TXQ_ID(0) * MT_RING_SIZE;
+ else
+ ring_base = MT_WED_TX_RING_BASE;
+
+ idx -= MT_TXQ_ID(0);
+ }
+
+ return mt76_connac_init_tx_queues(phy->mt76, idx, n_desc, ring_base,
+ MT_WED_Q_TX(idx));
+}
+
+static int mt7915_poll_tx(struct napi_struct *napi, int budget)
+{
+ struct mt7915_dev *dev;
+
+ dev = container_of(napi, struct mt7915_dev, mt76.tx_napi);
+
+ mt76_connac_tx_cleanup(&dev->mt76);
+ if (napi_complete_done(napi, 0))
+ mt7915_irq_enable(dev, MT_INT_TX_DONE_MCU);
+
+ return 0;
+}
+
+static void mt7915_dma_config(struct mt7915_dev *dev)
+{
+#define Q_CONFIG(q, wfdma, int, id) do { \
+ if (wfdma) \
+ dev->wfdma_mask |= (1 << (q)); \
+ dev->q_int_mask[(q)] = int; \
+ dev->q_id[(q)] = id; \
+ } while (0)
+
+#define MCUQ_CONFIG(q, wfdma, int, id) Q_CONFIG(q, (wfdma), (int), (id))
+#define RXQ_CONFIG(q, wfdma, int, id) Q_CONFIG(__RXQ(q), (wfdma), (int), (id))
+#define TXQ_CONFIG(q, wfdma, int, id) Q_CONFIG(__TXQ(q), (wfdma), (int), (id))
+
+ if (is_mt7915(&dev->mt76)) {
+ RXQ_CONFIG(MT_RXQ_MAIN, WFDMA0, MT_INT_RX_DONE_BAND0,
+ MT7915_RXQ_BAND0);
+ RXQ_CONFIG(MT_RXQ_MCU, WFDMA1, MT_INT_RX_DONE_WM,
+ MT7915_RXQ_MCU_WM);
+ RXQ_CONFIG(MT_RXQ_MCU_WA, WFDMA1, MT_INT_RX_DONE_WA,
+ MT7915_RXQ_MCU_WA);
+ RXQ_CONFIG(MT_RXQ_BAND1, WFDMA0, MT_INT_RX_DONE_BAND1,
+ MT7915_RXQ_BAND1);
+ RXQ_CONFIG(MT_RXQ_BAND1_WA, WFDMA1, MT_INT_RX_DONE_WA_EXT,
+ MT7915_RXQ_MCU_WA_EXT);
+ RXQ_CONFIG(MT_RXQ_MAIN_WA, WFDMA1, MT_INT_RX_DONE_WA_MAIN,
+ MT7915_RXQ_MCU_WA);
+ TXQ_CONFIG(0, WFDMA1, MT_INT_TX_DONE_BAND0, MT7915_TXQ_BAND0);
+ TXQ_CONFIG(1, WFDMA1, MT_INT_TX_DONE_BAND1, MT7915_TXQ_BAND1);
+ MCUQ_CONFIG(MT_MCUQ_WM, WFDMA1, MT_INT_TX_DONE_MCU_WM,
+ MT7915_TXQ_MCU_WM);
+ MCUQ_CONFIG(MT_MCUQ_WA, WFDMA1, MT_INT_TX_DONE_MCU_WA,
+ MT7915_TXQ_MCU_WA);
+ MCUQ_CONFIG(MT_MCUQ_FWDL, WFDMA1, MT_INT_TX_DONE_FWDL,
+ MT7915_TXQ_FWDL);
+ } else {
+ RXQ_CONFIG(MT_RXQ_MCU, WFDMA0, MT_INT_RX_DONE_WM,
+ MT7916_RXQ_MCU_WM);
+ RXQ_CONFIG(MT_RXQ_BAND1_WA, WFDMA0, MT_INT_RX_DONE_WA_EXT_MT7916,
+ MT7916_RXQ_MCU_WA_EXT);
+ MCUQ_CONFIG(MT_MCUQ_WM, WFDMA0, MT_INT_TX_DONE_MCU_WM,
+ MT7915_TXQ_MCU_WM);
+ MCUQ_CONFIG(MT_MCUQ_WA, WFDMA0, MT_INT_TX_DONE_MCU_WA_MT7916,
+ MT7915_TXQ_MCU_WA);
+ MCUQ_CONFIG(MT_MCUQ_FWDL, WFDMA0, MT_INT_TX_DONE_FWDL,
+ MT7915_TXQ_FWDL);
+
+ if (is_mt7916(&dev->mt76) && mtk_wed_device_active(&dev->mt76.mmio.wed)) {
+ RXQ_CONFIG(MT_RXQ_MAIN, WFDMA0, MT_INT_WED_RX_DONE_BAND0_MT7916,
+ MT7916_RXQ_BAND0);
+ RXQ_CONFIG(MT_RXQ_MCU_WA, WFDMA0, MT_INT_WED_RX_DONE_WA_MT7916,
+ MT7916_RXQ_MCU_WA);
+ RXQ_CONFIG(MT_RXQ_BAND1, WFDMA0, MT_INT_WED_RX_DONE_BAND1_MT7916,
+ MT7916_RXQ_BAND1);
+ RXQ_CONFIG(MT_RXQ_MAIN_WA, WFDMA0, MT_INT_WED_RX_DONE_WA_MAIN_MT7916,
+ MT7916_RXQ_MCU_WA_MAIN);
+ TXQ_CONFIG(0, WFDMA0, MT_INT_WED_TX_DONE_BAND0,
+ MT7915_TXQ_BAND0);
+ TXQ_CONFIG(1, WFDMA0, MT_INT_WED_TX_DONE_BAND1,
+ MT7915_TXQ_BAND1);
+ } else {
+ RXQ_CONFIG(MT_RXQ_MAIN, WFDMA0, MT_INT_RX_DONE_BAND0_MT7916,
+ MT7916_RXQ_BAND0);
+ RXQ_CONFIG(MT_RXQ_MCU_WA, WFDMA0, MT_INT_RX_DONE_WA,
+ MT7916_RXQ_MCU_WA);
+ RXQ_CONFIG(MT_RXQ_BAND1, WFDMA0, MT_INT_RX_DONE_BAND1_MT7916,
+ MT7916_RXQ_BAND1);
+ RXQ_CONFIG(MT_RXQ_MAIN_WA, WFDMA0, MT_INT_RX_DONE_WA_MAIN_MT7916,
+ MT7916_RXQ_MCU_WA_MAIN);
+ TXQ_CONFIG(0, WFDMA0, MT_INT_TX_DONE_BAND0,
+ MT7915_TXQ_BAND0);
+ TXQ_CONFIG(1, WFDMA0, MT_INT_TX_DONE_BAND1,
+ MT7915_TXQ_BAND1);
+ }
+ }
+}
+
+static void __mt7915_dma_prefetch(struct mt7915_dev *dev, u32 ofs)
+{
+#define PREFETCH(_base, _depth) ((_base) << 16 | (_depth))
+ u32 base = 0;
+
+ /* prefetch SRAM wrapping boundary for tx/rx ring. */
+ mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_FWDL) + ofs, PREFETCH(0x0, 0x4));
+ mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WM) + ofs, PREFETCH(0x40, 0x4));
+ mt76_wr(dev, MT_TXQ_EXT_CTRL(0) + ofs, PREFETCH(0x80, 0x4));
+ mt76_wr(dev, MT_TXQ_EXT_CTRL(1) + ofs, PREFETCH(0xc0, 0x4));
+ mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WA) + ofs, PREFETCH(0x100, 0x4));
+
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MCU) + ofs,
+ PREFETCH(0x140, 0x4));
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MCU_WA) + ofs,
+ PREFETCH(0x180, 0x4));
+ if (!is_mt7915(&dev->mt76)) {
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MAIN_WA) + ofs,
+ PREFETCH(0x1c0, 0x4));
+ base = 0x40;
+ }
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_BAND1_WA) + ofs,
+ PREFETCH(0x1c0 + base, 0x4));
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_MAIN) + ofs,
+ PREFETCH(0x200 + base, 0x4));
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_BAND1) + ofs,
+ PREFETCH(0x240 + base, 0x4));
+
+ /* for mt7915, the ring which is next the last
+ * used ring must be initialized.
+ */
+ if (is_mt7915(&dev->mt76)) {
+ ofs += 0x4;
+ mt76_wr(dev, MT_MCUQ_EXT_CTRL(MT_MCUQ_WA) + ofs,
+ PREFETCH(0x140, 0x0));
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_BAND1_WA) + ofs,
+ PREFETCH(0x200 + base, 0x0));
+ mt76_wr(dev, MT_RXQ_BAND1_CTRL(MT_RXQ_BAND1) + ofs,
+ PREFETCH(0x280 + base, 0x0));
+ }
+}
+
+void mt7915_dma_prefetch(struct mt7915_dev *dev)
+{
+ __mt7915_dma_prefetch(dev, 0);
+ if (dev->hif2)
+ __mt7915_dma_prefetch(dev, MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0));
+}
+
+static void mt7915_dma_disable(struct mt7915_dev *dev, bool rst)
+{
+ struct mt76_dev *mdev = &dev->mt76;
+ u32 hif1_ofs = 0;
+
+ if (dev->hif2)
+ hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0);
+
+ /* reset */
+ if (rst) {
+ mt76_clear(dev, MT_WFDMA0_RST,
+ MT_WFDMA0_RST_DMASHDL_ALL_RST |
+ MT_WFDMA0_RST_LOGIC_RST);
+
+ mt76_set(dev, MT_WFDMA0_RST,
+ MT_WFDMA0_RST_DMASHDL_ALL_RST |
+ MT_WFDMA0_RST_LOGIC_RST);
+
+ if (is_mt7915(mdev)) {
+ mt76_clear(dev, MT_WFDMA1_RST,
+ MT_WFDMA1_RST_DMASHDL_ALL_RST |
+ MT_WFDMA1_RST_LOGIC_RST);
+
+ mt76_set(dev, MT_WFDMA1_RST,
+ MT_WFDMA1_RST_DMASHDL_ALL_RST |
+ MT_WFDMA1_RST_LOGIC_RST);
+ }
+
+ if (dev->hif2) {
+ mt76_clear(dev, MT_WFDMA0_RST + hif1_ofs,
+ MT_WFDMA0_RST_DMASHDL_ALL_RST |
+ MT_WFDMA0_RST_LOGIC_RST);
+
+ mt76_set(dev, MT_WFDMA0_RST + hif1_ofs,
+ MT_WFDMA0_RST_DMASHDL_ALL_RST |
+ MT_WFDMA0_RST_LOGIC_RST);
+
+ if (is_mt7915(mdev)) {
+ mt76_clear(dev, MT_WFDMA1_RST + hif1_ofs,
+ MT_WFDMA1_RST_DMASHDL_ALL_RST |
+ MT_WFDMA1_RST_LOGIC_RST);
+
+ mt76_set(dev, MT_WFDMA1_RST + hif1_ofs,
+ MT_WFDMA1_RST_DMASHDL_ALL_RST |
+ MT_WFDMA1_RST_LOGIC_RST);
+ }
+ }
+ }
+
+ /* disable */
+ mt76_clear(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA0_GLO_CFG_OMIT_RX_INFO |
+ MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
+
+ if (is_mt7915(mdev))
+ mt76_clear(dev, MT_WFDMA1_GLO_CFG,
+ MT_WFDMA1_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA1_GLO_CFG_OMIT_RX_INFO |
+ MT_WFDMA1_GLO_CFG_OMIT_RX_INFO_PFET2);
+
+ if (dev->hif2) {
+ mt76_clear(dev, MT_WFDMA0_GLO_CFG + hif1_ofs,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA0_GLO_CFG_OMIT_RX_INFO |
+ MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
+
+ if (is_mt7915(mdev))
+ mt76_clear(dev, MT_WFDMA1_GLO_CFG + hif1_ofs,
+ MT_WFDMA1_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA1_GLO_CFG_OMIT_RX_INFO |
+ MT_WFDMA1_GLO_CFG_OMIT_RX_INFO_PFET2);
+ }
+}
+
+static int mt7915_dma_enable(struct mt7915_dev *dev)
+{
+ struct mt76_dev *mdev = &dev->mt76;
+ u32 hif1_ofs = 0;
+ u32 irq_mask;
+
+ if (dev->hif2)
+ hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0);
+
+ /* reset dma idx */
+ mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR, ~0);
+ if (is_mt7915(mdev))
+ mt76_wr(dev, MT_WFDMA1_RST_DTX_PTR, ~0);
+ if (dev->hif2) {
+ mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR + hif1_ofs, ~0);
+ if (is_mt7915(mdev))
+ mt76_wr(dev, MT_WFDMA1_RST_DTX_PTR + hif1_ofs, ~0);
+ }
+
+ /* configure delay interrupt off */
+ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0, 0);
+ if (is_mt7915(mdev)) {
+ mt76_wr(dev, MT_WFDMA1_PRI_DLY_INT_CFG0, 0);
+ } else {
+ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG1, 0);
+ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG2, 0);
+ }
+
+ if (dev->hif2) {
+ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0 + hif1_ofs, 0);
+ if (is_mt7915(mdev)) {
+ mt76_wr(dev, MT_WFDMA1_PRI_DLY_INT_CFG0 +
+ hif1_ofs, 0);
+ } else {
+ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG1 +
+ hif1_ofs, 0);
+ mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG2 +
+ hif1_ofs, 0);
+ }
+ }
+
+ /* configure perfetch settings */
+ mt7915_dma_prefetch(dev);
+
+ /* hif wait WFDMA idle */
+ mt76_set(dev, MT_WFDMA0_BUSY_ENA,
+ MT_WFDMA0_BUSY_ENA_TX_FIFO0 |
+ MT_WFDMA0_BUSY_ENA_TX_FIFO1 |
+ MT_WFDMA0_BUSY_ENA_RX_FIFO);
+
+ if (is_mt7915(mdev))
+ mt76_set(dev, MT_WFDMA1_BUSY_ENA,
+ MT_WFDMA1_BUSY_ENA_TX_FIFO0 |
+ MT_WFDMA1_BUSY_ENA_TX_FIFO1 |
+ MT_WFDMA1_BUSY_ENA_RX_FIFO);
+
+ if (dev->hif2) {
+ mt76_set(dev, MT_WFDMA0_BUSY_ENA + hif1_ofs,
+ MT_WFDMA0_PCIE1_BUSY_ENA_TX_FIFO0 |
+ MT_WFDMA0_PCIE1_BUSY_ENA_TX_FIFO1 |
+ MT_WFDMA0_PCIE1_BUSY_ENA_RX_FIFO);
+
+ if (is_mt7915(mdev))
+ mt76_set(dev, MT_WFDMA1_BUSY_ENA + hif1_ofs,
+ MT_WFDMA1_PCIE1_BUSY_ENA_TX_FIFO0 |
+ MT_WFDMA1_PCIE1_BUSY_ENA_TX_FIFO1 |
+ MT_WFDMA1_PCIE1_BUSY_ENA_RX_FIFO);
+ }
+
+ mt76_poll(dev, MT_WFDMA_EXT_CSR_HIF_MISC,
+ MT_WFDMA_EXT_CSR_HIF_MISC_BUSY, 0, 1000);
+
+ /* set WFDMA Tx/Rx */
+ mt76_set(dev, MT_WFDMA0_GLO_CFG,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
+
+ if (is_mt7915(mdev))
+ mt76_set(dev, MT_WFDMA1_GLO_CFG,
+ MT_WFDMA1_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA1_GLO_CFG_OMIT_RX_INFO);
+
+ if (dev->hif2) {
+ mt76_set(dev, MT_WFDMA0_GLO_CFG + hif1_ofs,
+ MT_WFDMA0_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
+
+ if (is_mt7915(mdev))
+ mt76_set(dev, MT_WFDMA1_GLO_CFG + hif1_ofs,
+ MT_WFDMA1_GLO_CFG_TX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_RX_DMA_EN |
+ MT_WFDMA1_GLO_CFG_OMIT_TX_INFO |
+ MT_WFDMA1_GLO_CFG_OMIT_RX_INFO);
+
+ mt76_set(dev, MT_WFDMA_HOST_CONFIG,
+ MT_WFDMA_HOST_CONFIG_PDMA_BAND);
+ }
+
+ /* enable interrupts for TX/RX rings */
+ irq_mask = MT_INT_RX_DONE_MCU |
+ MT_INT_TX_DONE_MCU |
+ MT_INT_MCU_CMD;
+
+ if (!dev->phy.mt76->band_idx)
+ irq_mask |= MT_INT_BAND0_RX_DONE;
+
+ if (dev->dbdc_support || dev->phy.mt76->band_idx)
+ irq_mask |= MT_INT_BAND1_RX_DONE;
+
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
+ u32 wed_irq_mask = irq_mask;
+ int ret;
+
+ wed_irq_mask |= MT_INT_TX_DONE_BAND0 | MT_INT_TX_DONE_BAND1;
+ if (!is_mt7986(&dev->mt76))
+ mt76_wr(dev, MT_INT_WED_MASK_CSR, wed_irq_mask);
+ else
+ mt76_wr(dev, MT_INT_MASK_CSR, wed_irq_mask);
+
+ ret = mt7915_mcu_wed_enable_rx_stats(dev);
+ if (ret)
+ return ret;
+
+ mtk_wed_device_start(&dev->mt76.mmio.wed, wed_irq_mask);
+ }
+
+ mt7915_irq_enable(dev, irq_mask);
+
+ return 0;
+}
+
+int mt7915_dma_init(struct mt7915_dev *dev, struct mt7915_phy *phy2)
+{
+ struct mt76_dev *mdev = &dev->mt76;
+ u32 wa_rx_base, wa_rx_idx;
+ u32 hif1_ofs = 0;
+ int ret;
+
+ mt7915_dma_config(dev);
+
+ mt76_dma_attach(&dev->mt76);
+
+ if (dev->hif2)
+ hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0);
+
+ mt7915_dma_disable(dev, true);
+
+ if (mtk_wed_device_active(&mdev->mmio.wed)) {
+ if (!is_mt7986(mdev)) {
+ u8 wed_control_rx1 = is_mt7915(mdev) ? 1 : 2;
+
+ mt76_set(dev, MT_WFDMA_HOST_CONFIG,
+ MT_WFDMA_HOST_CONFIG_WED);
+ mt76_wr(dev, MT_WFDMA_WED_RING_CONTROL,
+ FIELD_PREP(MT_WFDMA_WED_RING_CONTROL_TX0, 18) |
+ FIELD_PREP(MT_WFDMA_WED_RING_CONTROL_TX1, 19) |
+ FIELD_PREP(MT_WFDMA_WED_RING_CONTROL_RX1,
+ wed_control_rx1));
+ if (is_mt7915(mdev))
+ mt76_rmw(dev, MT_WFDMA0_EXT0_CFG, MT_WFDMA0_EXT0_RXWB_KEEP,
+ MT_WFDMA0_EXT0_RXWB_KEEP);
+ }
+ } else {
+ mt76_clear(dev, MT_WFDMA_HOST_CONFIG, MT_WFDMA_HOST_CONFIG_WED);
+ }
+
+ /* init tx queue */
+ ret = mt7915_init_tx_queues(&dev->phy,
+ MT_TXQ_ID(dev->phy.mt76->band_idx),
+ MT7915_TX_RING_SIZE,
+ MT_TXQ_RING_BASE(0));
+ if (ret)
+ return ret;
+
+ if (phy2) {
+ ret = mt7915_init_tx_queues(phy2,
+ MT_TXQ_ID(phy2->mt76->band_idx),
+ MT7915_TX_RING_SIZE,
+ MT_TXQ_RING_BASE(1));
+ if (ret)
+ return ret;
+ }
+
+ /* command to WM */
+ ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM,
+ MT_MCUQ_ID(MT_MCUQ_WM),
+ MT7915_TX_MCU_RING_SIZE,
+ MT_MCUQ_RING_BASE(MT_MCUQ_WM));
+ if (ret)
+ return ret;
+
+ /* command to WA */
+ ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WA,
+ MT_MCUQ_ID(MT_MCUQ_WA),
+ MT7915_TX_MCU_RING_SIZE,
+ MT_MCUQ_RING_BASE(MT_MCUQ_WA));
+ if (ret)
+ return ret;
+
+ /* firmware download */
+ ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL,
+ MT_MCUQ_ID(MT_MCUQ_FWDL),
+ MT7915_TX_FWDL_RING_SIZE,
+ MT_MCUQ_RING_BASE(MT_MCUQ_FWDL));
+ if (ret)
+ return ret;
+
+ /* event from WM */
+ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU],
+ MT_RXQ_ID(MT_RXQ_MCU),
+ MT7915_RX_MCU_RING_SIZE,
+ MT_RX_BUF_SIZE,
+ MT_RXQ_RING_BASE(MT_RXQ_MCU));
+ if (ret)
+ return ret;
+
+ /* event from WA */
+ if (mtk_wed_device_active(&mdev->mmio.wed) && is_mt7915(mdev)) {
+ wa_rx_base = MT_WED_RX_RING_BASE;
+ wa_rx_idx = MT7915_RXQ_MCU_WA;
+ dev->mt76.q_rx[MT_RXQ_MCU_WA].flags = MT_WED_Q_TXFREE;
+ } else {
+ wa_rx_base = MT_RXQ_RING_BASE(MT_RXQ_MCU_WA);
+ wa_rx_idx = MT_RXQ_ID(MT_RXQ_MCU_WA);
+ }
+ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA],
+ wa_rx_idx, MT7915_RX_MCU_RING_SIZE,
+ MT_RX_BUF_SIZE, wa_rx_base);
+ if (ret)
+ return ret;
+
+ /* rx data queue for band0 */
+ if (!dev->phy.mt76->band_idx) {
+ if (mtk_wed_device_active(&mdev->mmio.wed) &&
+ mtk_wed_get_rx_capa(&mdev->mmio.wed)) {
+ dev->mt76.q_rx[MT_RXQ_MAIN].flags =
+ MT_WED_Q_RX(MT7915_RXQ_BAND0);
+ dev->mt76.rx_token_size += MT7915_RX_RING_SIZE;
+ }
+
+ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN],
+ MT_RXQ_ID(MT_RXQ_MAIN),
+ MT7915_RX_RING_SIZE,
+ MT_RX_BUF_SIZE,
+ MT_RXQ_RING_BASE(MT_RXQ_MAIN));
+ if (ret)
+ return ret;
+ }
+
+ /* tx free notify event from WA for band0 */
+ if (!is_mt7915(mdev)) {
+ wa_rx_base = MT_RXQ_RING_BASE(MT_RXQ_MAIN_WA);
+ wa_rx_idx = MT_RXQ_ID(MT_RXQ_MAIN_WA);
+
+ if (mtk_wed_device_active(&mdev->mmio.wed)) {
+ mdev->q_rx[MT_RXQ_MAIN_WA].flags = MT_WED_Q_TXFREE;
+ if (is_mt7916(mdev)) {
+ wa_rx_base = MT_WED_RX_RING_BASE;
+ wa_rx_idx = MT7915_RXQ_MCU_WA;
+ }
+ }
+
+ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN_WA],
+ wa_rx_idx, MT7915_RX_MCU_RING_SIZE,
+ MT_RX_BUF_SIZE, wa_rx_base);
+ if (ret)
+ return ret;
+ }
+
+ if (dev->dbdc_support || dev->phy.mt76->band_idx) {
+ if (mtk_wed_device_active(&mdev->mmio.wed) &&
+ mtk_wed_get_rx_capa(&mdev->mmio.wed)) {
+ dev->mt76.q_rx[MT_RXQ_BAND1].flags =
+ MT_WED_Q_RX(MT7915_RXQ_BAND1);
+ dev->mt76.rx_token_size += MT7915_RX_RING_SIZE;
+ }
+
+ /* rx data queue for band1 */
+ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_BAND1],
+ MT_RXQ_ID(MT_RXQ_BAND1),
+ MT7915_RX_RING_SIZE,
+ MT_RX_BUF_SIZE,
+ MT_RXQ_RING_BASE(MT_RXQ_BAND1) + hif1_ofs);
+ if (ret)
+ return ret;
+
+ /* tx free notify event from WA for band1 */
+ ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_BAND1_WA],
+ MT_RXQ_ID(MT_RXQ_BAND1_WA),
+ MT7915_RX_MCU_RING_SIZE,
+ MT_RX_BUF_SIZE,
+ MT_RXQ_RING_BASE(MT_RXQ_BAND1_WA) + hif1_ofs);
+ if (ret)
+ return ret;
+ }
+
+ ret = mt76_init_queues(dev, mt76_dma_rx_poll);
+ if (ret < 0)
+ return ret;
+
+ netif_napi_add_tx(&dev->mt76.tx_napi_dev, &dev->mt76.tx_napi,
+ mt7915_poll_tx);
+ napi_enable(&dev->mt76.tx_napi);
+
+ mt7915_dma_enable(dev);
+
+ return 0;
+}
+
+static void mt7915_dma_wed_reset(struct mt7915_dev *dev)
+{
+ struct mt76_dev *mdev = &dev->mt76;
+
+ if (!test_bit(MT76_STATE_WED_RESET, &dev->mphy.state))
+ return;
+
+ complete(&mdev->mmio.wed_reset);
+
+ if (!wait_for_completion_timeout(&dev->mt76.mmio.wed_reset_complete,
+ 3 * HZ))
+ dev_err(dev->mt76.dev, "wed reset complete timeout\n");
+}
+
+static void
+mt7915_dma_reset_tx_queue(struct mt7915_dev *dev, struct mt76_queue *q)
+{
+ mt76_queue_reset(dev, q);
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+ mt76_dma_wed_setup(&dev->mt76, q, true);
+}
+
+int mt7915_dma_reset(struct mt7915_dev *dev, bool force)
+{
+ struct mt76_phy *mphy_ext = dev->mt76.phys[MT_BAND1];
+ struct mtk_wed_device *wed = &dev->mt76.mmio.wed;
+ int i;
+
+ /* clean up hw queues */
+ for (i = 0; i < ARRAY_SIZE(dev->mt76.phy.q_tx); i++) {
+ mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true);
+ if (mphy_ext)
+ mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[i], true);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dev->mt76.q_mcu); i++)
+ mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[i], true);
+
+ mt76_for_each_q_rx(&dev->mt76, i)
+ mt76_queue_rx_cleanup(dev, &dev->mt76.q_rx[i]);
+
+ /* reset wfsys */
+ if (force)
+ mt7915_wfsys_reset(dev);
+
+ if (mtk_wed_device_active(wed))
+ mtk_wed_device_dma_reset(wed);
+
+ mt7915_dma_disable(dev, force);
+ mt7915_dma_wed_reset(dev);
+
+ /* reset hw queues */
+ for (i = 0; i < __MT_TXQ_MAX; i++) {
+ mt7915_dma_reset_tx_queue(dev, dev->mphy.q_tx[i]);
+ if (mphy_ext)
+ mt7915_dma_reset_tx_queue(dev, mphy_ext->q_tx[i]);
+ }
+
+ for (i = 0; i < __MT_MCUQ_MAX; i++)
+ mt76_queue_reset(dev, dev->mt76.q_mcu[i]);
+
+ mt76_for_each_q_rx(&dev->mt76, i) {
+ if (dev->mt76.q_rx[i].flags == MT_WED_Q_TXFREE)
+ continue;
+
+ mt76_queue_reset(dev, &dev->mt76.q_rx[i]);
+ }
+
+ mt76_tx_status_check(&dev->mt76, true);
+
+ mt76_for_each_q_rx(&dev->mt76, i)
+ mt76_queue_rx_reset(dev, i);
+
+ if (mtk_wed_device_active(wed) && is_mt7915(&dev->mt76))
+ mt76_rmw(dev, MT_WFDMA0_EXT0_CFG, MT_WFDMA0_EXT0_RXWB_KEEP,
+ MT_WFDMA0_EXT0_RXWB_KEEP);
+
+ mt7915_dma_enable(dev);
+
+ return 0;
+}
+
+void mt7915_dma_cleanup(struct mt7915_dev *dev)
+{
+ mt7915_dma_disable(dev, true);
+
+ mt76_dma_cleanup(&dev->mt76);
+}