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/realtek/rtw88/efuse.c | 187 +++++++++++++++++++++++++++++ 1 file changed, 187 insertions(+) create mode 100644 drivers/net/wireless/realtek/rtw88/efuse.c (limited to 'drivers/net/wireless/realtek/rtw88/efuse.c') diff --git a/drivers/net/wireless/realtek/rtw88/efuse.c b/drivers/net/wireless/realtek/rtw88/efuse.c new file mode 100644 index 000000000..b85075cd6 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw88/efuse.c @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2018-2019 Realtek Corporation + */ + +#include + +#include "main.h" +#include "efuse.h" +#include "reg.h" +#include "debug.h" + +#define RTW_EFUSE_BANK_WIFI 0x0 + +static void switch_efuse_bank(struct rtw_dev *rtwdev) +{ + rtw_write32_mask(rtwdev, REG_LDO_EFUSE_CTRL, BIT_MASK_EFUSE_BANK_SEL, + RTW_EFUSE_BANK_WIFI); +} + +#define invalid_efuse_header(hdr1, hdr2) \ + ((hdr1) == 0xff || (((hdr1) & 0x1f) == 0xf && (hdr2) == 0xff)) +#define invalid_efuse_content(word_en, i) \ + (((word_en) & BIT(i)) != 0x0) +#define get_efuse_blk_idx_2_byte(hdr1, hdr2) \ + ((((hdr2) & 0xf0) >> 1) | (((hdr1) >> 5) & 0x07)) +#define get_efuse_blk_idx_1_byte(hdr1) \ + (((hdr1) & 0xf0) >> 4) +#define block_idx_to_logical_idx(blk_idx, i) \ + (((blk_idx) << 3) + ((i) << 1)) + +/* efuse header format + * + * | 7 5 4 0 | 7 4 3 0 | 15 8 7 0 | + * block[2:0] 0 1111 block[6:3] word_en[3:0] byte0 byte1 + * | header 1 (optional) | header 2 | word N | + * + * word_en: 4 bits each word. 0 -> write; 1 -> not write + * N: 1~4, depends on word_en + */ +static int rtw_dump_logical_efuse_map(struct rtw_dev *rtwdev, u8 *phy_map, + u8 *log_map) +{ + u32 physical_size = rtwdev->efuse.physical_size; + u32 protect_size = rtwdev->efuse.protect_size; + u32 logical_size = rtwdev->efuse.logical_size; + u32 phy_idx, log_idx; + u8 hdr1, hdr2; + u8 blk_idx; + u8 word_en; + int i; + + for (phy_idx = 0; phy_idx < physical_size - protect_size;) { + hdr1 = phy_map[phy_idx]; + hdr2 = phy_map[phy_idx + 1]; + if (invalid_efuse_header(hdr1, hdr2)) + break; + + if ((hdr1 & 0x1f) == 0xf) { + /* 2-byte header format */ + blk_idx = get_efuse_blk_idx_2_byte(hdr1, hdr2); + word_en = hdr2 & 0xf; + phy_idx += 2; + } else { + /* 1-byte header format */ + blk_idx = get_efuse_blk_idx_1_byte(hdr1); + word_en = hdr1 & 0xf; + phy_idx += 1; + } + + for (i = 0; i < 4; i++) { + if (invalid_efuse_content(word_en, i)) + continue; + + log_idx = block_idx_to_logical_idx(blk_idx, i); + if (phy_idx + 1 > physical_size - protect_size || + log_idx + 1 > logical_size) + return -EINVAL; + + log_map[log_idx] = phy_map[phy_idx]; + log_map[log_idx + 1] = phy_map[phy_idx + 1]; + phy_idx += 2; + } + } + return 0; +} + +static int rtw_dump_physical_efuse_map(struct rtw_dev *rtwdev, u8 *map) +{ + const struct rtw_chip_info *chip = rtwdev->chip; + u32 size = rtwdev->efuse.physical_size; + u32 efuse_ctl; + u32 addr; + u32 cnt; + + rtw_chip_efuse_grant_on(rtwdev); + + switch_efuse_bank(rtwdev); + + /* disable 2.5V LDO */ + chip->ops->cfg_ldo25(rtwdev, false); + + efuse_ctl = rtw_read32(rtwdev, REG_EFUSE_CTRL); + + for (addr = 0; addr < size; addr++) { + efuse_ctl &= ~(BIT_MASK_EF_DATA | BITS_EF_ADDR); + efuse_ctl |= (addr & BIT_MASK_EF_ADDR) << BIT_SHIFT_EF_ADDR; + rtw_write32(rtwdev, REG_EFUSE_CTRL, efuse_ctl & (~BIT_EF_FLAG)); + + cnt = 1000000; + do { + udelay(1); + efuse_ctl = rtw_read32(rtwdev, REG_EFUSE_CTRL); + if (--cnt == 0) + return -EBUSY; + } while (!(efuse_ctl & BIT_EF_FLAG)); + + *(map + addr) = (u8)(efuse_ctl & BIT_MASK_EF_DATA); + } + + rtw_chip_efuse_grant_off(rtwdev); + + return 0; +} + +int rtw_read8_physical_efuse(struct rtw_dev *rtwdev, u16 addr, u8 *data) +{ + u32 efuse_ctl; + int ret; + + rtw_write32_mask(rtwdev, REG_EFUSE_CTRL, 0x3ff00, addr); + rtw_write32_clr(rtwdev, REG_EFUSE_CTRL, BIT_EF_FLAG); + + ret = read_poll_timeout(rtw_read32, efuse_ctl, efuse_ctl & BIT_EF_FLAG, + 1000, 100000, false, rtwdev, REG_EFUSE_CTRL); + if (ret) { + *data = EFUSE_READ_FAIL; + return ret; + } + + *data = rtw_read8(rtwdev, REG_EFUSE_CTRL); + + return 0; +} +EXPORT_SYMBOL(rtw_read8_physical_efuse); + +int rtw_parse_efuse_map(struct rtw_dev *rtwdev) +{ + const struct rtw_chip_info *chip = rtwdev->chip; + struct rtw_efuse *efuse = &rtwdev->efuse; + u32 phy_size = efuse->physical_size; + u32 log_size = efuse->logical_size; + u8 *phy_map = NULL; + u8 *log_map = NULL; + int ret = 0; + + phy_map = kmalloc(phy_size, GFP_KERNEL); + log_map = kmalloc(log_size, GFP_KERNEL); + if (!phy_map || !log_map) { + ret = -ENOMEM; + goto out_free; + } + + ret = rtw_dump_physical_efuse_map(rtwdev, phy_map); + if (ret) { + rtw_err(rtwdev, "failed to dump efuse physical map\n"); + goto out_free; + } + + memset(log_map, 0xff, log_size); + ret = rtw_dump_logical_efuse_map(rtwdev, phy_map, log_map); + if (ret) { + rtw_err(rtwdev, "failed to dump efuse logical map\n"); + goto out_free; + } + + ret = chip->ops->read_efuse(rtwdev, log_map); + if (ret) { + rtw_err(rtwdev, "failed to read efuse map\n"); + goto out_free; + } + +out_free: + kfree(log_map); + kfree(phy_map); + + return ret; +} -- cgit v1.2.3