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/ethernet/hisilicon/hns/hns_dsaf_misc.c | 771 +++++++++++++++++++++ 1 file changed, 771 insertions(+) create mode 100644 drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c (limited to 'drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c') diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c new file mode 100644 index 000000000..5df19c604 --- /dev/null +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c @@ -0,0 +1,771 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2014-2015 Hisilicon Limited. + */ + +#include "hns_dsaf_mac.h" +#include "hns_dsaf_misc.h" +#include "hns_dsaf_ppe.h" +#include "hns_dsaf_reg.h" + +enum _dsm_op_index { + HNS_OP_RESET_FUNC = 0x1, + HNS_OP_SERDES_LP_FUNC = 0x2, + HNS_OP_LED_SET_FUNC = 0x3, + HNS_OP_GET_PORT_TYPE_FUNC = 0x4, + HNS_OP_GET_SFP_STAT_FUNC = 0x5, + HNS_OP_LOCATE_LED_SET_FUNC = 0x6, +}; + +enum _dsm_rst_type { + HNS_DSAF_RESET_FUNC = 0x1, + HNS_PPE_RESET_FUNC = 0x2, + HNS_XGE_RESET_FUNC = 0x4, + HNS_GE_RESET_FUNC = 0x5, + HNS_DSAF_CHN_RESET_FUNC = 0x6, + HNS_ROCE_RESET_FUNC = 0x7, +}; + +static const guid_t hns_dsaf_acpi_dsm_guid = + GUID_INIT(0x1A85AA1A, 0xE293, 0x415E, + 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A); + +static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val) +{ + if (dsaf_dev->sub_ctrl) + dsaf_write_syscon(dsaf_dev->sub_ctrl, reg, val); + else + dsaf_write_reg(dsaf_dev->sc_base, reg, val); +} + +static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg) +{ + u32 ret = 0; + int err; + + if (dsaf_dev->sub_ctrl) { + err = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg, &ret); + if (err) + dev_err(dsaf_dev->dev, "dsaf_read_syscon error %d!\n", + err); + } else { + ret = dsaf_read_reg(dsaf_dev->sc_base, reg); + } + + return ret; +} + +static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type, + u32 link, u32 port, u32 act) +{ + union acpi_object *obj; + union acpi_object obj_args[3], argv4; + + obj_args[0].integer.type = ACPI_TYPE_INTEGER; + obj_args[0].integer.value = link; + obj_args[1].integer.type = ACPI_TYPE_INTEGER; + obj_args[1].integer.value = port; + obj_args[2].integer.type = ACPI_TYPE_INTEGER; + obj_args[2].integer.value = act; + + argv4.type = ACPI_TYPE_PACKAGE; + argv4.package.count = 3; + argv4.package.elements = obj_args; + + obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), + &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4); + if (!obj) { + dev_warn(mac_cb->dev, "ledctrl fail, link:%d port:%d act:%d!\n", + link, port, act); + return; + } + + ACPI_FREE(obj); +} + +static void hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb *mac_cb, + u8 op_type, u32 locate, + u32 port) +{ + union acpi_object obj_args[2], argv4; + union acpi_object *obj; + + obj_args[0].integer.type = ACPI_TYPE_INTEGER; + obj_args[0].integer.value = locate; + obj_args[1].integer.type = ACPI_TYPE_INTEGER; + obj_args[1].integer.value = port; + + argv4.type = ACPI_TYPE_PACKAGE; + argv4.package.count = 2; + argv4.package.elements = obj_args; + + obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), + &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4); + if (!obj) { + dev_err(mac_cb->dev, "ledctrl fail, locate:%d port:%d!\n", + locate, port); + return; + } + + ACPI_FREE(obj); +} + +static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status, + u16 speed, int data) +{ + int speed_reg = 0; + u8 value; + + if (!mac_cb) { + pr_err("sfp_led_opt mac_dev is null!\n"); + return; + } + if (!mac_cb->cpld_ctrl) { + dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n", + mac_cb->mac_id); + return; + } + + if (speed == MAC_SPEED_10000) + speed_reg = 1; + + value = mac_cb->cpld_led_value; + + if (link_status) { + dsaf_set_bit(value, DSAF_LED_LINK_B, link_status); + dsaf_set_field(value, DSAF_LED_SPEED_M, + DSAF_LED_SPEED_S, speed_reg); + dsaf_set_bit(value, DSAF_LED_DATA_B, data); + + if (value != mac_cb->cpld_led_value) { + dsaf_write_syscon(mac_cb->cpld_ctrl, + mac_cb->cpld_ctrl_reg, value); + mac_cb->cpld_led_value = value; + } + } else { + value = (mac_cb->cpld_led_value) & (0x1 << DSAF_LED_ANCHOR_B); + dsaf_write_syscon(mac_cb->cpld_ctrl, + mac_cb->cpld_ctrl_reg, value); + mac_cb->cpld_led_value = value; + } +} + +static void hns_cpld_set_led_acpi(struct hns_mac_cb *mac_cb, int link_status, + u16 speed, int data) +{ + if (!mac_cb) { + pr_err("cpld_led_set mac_cb is null!\n"); + return; + } + + hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC, + link_status, mac_cb->mac_id, data); +} + +static void cpld_led_reset(struct hns_mac_cb *mac_cb) +{ + if (!mac_cb || !mac_cb->cpld_ctrl) + return; + + dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, + CPLD_LED_DEFAULT_VALUE); + mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE; +} + +static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb) +{ + if (!mac_cb) { + pr_err("cpld_led_reset mac_cb is null!\n"); + return; + } + + if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER) + return; + + hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC, + 0, mac_cb->mac_id, 0); +} + +static int cpld_set_led_id(struct hns_mac_cb *mac_cb, + enum hnae_led_state status) +{ + u32 val = 0; + int ret; + + if (!mac_cb->cpld_ctrl) + return 0; + + switch (status) { + case HNAE_LED_ACTIVE: + ret = dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, + &val); + if (ret) + return ret; + + dsaf_set_bit(val, DSAF_LED_ANCHOR_B, CPLD_LED_ON_VALUE); + dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, + val); + mac_cb->cpld_led_value = val; + break; + case HNAE_LED_INACTIVE: + dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B, + CPLD_LED_DEFAULT_VALUE); + dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg, + mac_cb->cpld_led_value); + break; + default: + dev_err(mac_cb->dev, "invalid led state: %d!", status); + return -EINVAL; + } + + return 0; +} + +static int cpld_set_led_id_acpi(struct hns_mac_cb *mac_cb, + enum hnae_led_state status) +{ + switch (status) { + case HNAE_LED_ACTIVE: + hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb, + HNS_OP_LOCATE_LED_SET_FUNC, + CPLD_LED_ON_VALUE, + mac_cb->mac_id); + break; + case HNAE_LED_INACTIVE: + hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb, + HNS_OP_LOCATE_LED_SET_FUNC, + CPLD_LED_DEFAULT_VALUE, + mac_cb->mac_id); + break; + default: + dev_err(mac_cb->dev, "invalid led state: %d!", status); + return -EINVAL; + } + + return 0; +} + +#define RESET_REQ_OR_DREQ 1 + +static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type, + u32 port_type, u32 port, u32 val) +{ + union acpi_object *obj; + union acpi_object obj_args[3], argv4; + + obj_args[0].integer.type = ACPI_TYPE_INTEGER; + obj_args[0].integer.value = port_type; + obj_args[1].integer.type = ACPI_TYPE_INTEGER; + obj_args[1].integer.value = port; + obj_args[2].integer.type = ACPI_TYPE_INTEGER; + obj_args[2].integer.value = val; + + argv4.type = ACPI_TYPE_PACKAGE; + argv4.package.count = 3; + argv4.package.elements = obj_args; + + obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev), + &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4); + if (!obj) { + dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!", + port_type, port); + return; + } + + ACPI_FREE(obj); +} + +static void hns_dsaf_rst(struct dsaf_device *dsaf_dev, bool dereset) +{ + u32 xbar_reg_addr; + u32 nt_reg_addr; + + if (!dereset) { + xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG; + nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG; + } else { + xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG; + nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG; + } + + dsaf_write_sub(dsaf_dev, xbar_reg_addr, RESET_REQ_OR_DREQ); + dsaf_write_sub(dsaf_dev, nt_reg_addr, RESET_REQ_OR_DREQ); +} + +static void hns_dsaf_rst_acpi(struct dsaf_device *dsaf_dev, bool dereset) +{ + hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC, + HNS_DSAF_RESET_FUNC, + 0, dereset); +} + +static void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, + bool dereset) +{ + u32 reg_val = 0; + u32 reg_addr; + + if (port >= DSAF_XGE_NUM) + return; + + reg_val |= RESET_REQ_OR_DREQ; + reg_val |= 0x2082082 << dsaf_dev->mac_cb[port]->port_rst_off; + + if (!dereset) + reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG; + else + reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG; + + dsaf_write_sub(dsaf_dev, reg_addr, reg_val); +} + +static void hns_dsaf_xge_srst_by_port_acpi(struct dsaf_device *dsaf_dev, + u32 port, bool dereset) +{ + hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC, + HNS_XGE_RESET_FUNC, port, dereset); +} + +/** + * hns_dsaf_srst_chns - reset dsaf channels + * @dsaf_dev: dsaf device struct pointer + * @msk: xbar channels mask value: + * @dereset: false - request reset , true - drop reset + * + * bit0-5 for xge0-5 + * bit6-11 for ppe0-5 + * bit12-17 for roce0-5 + * bit18-19 for com/dfx + */ +static void +hns_dsaf_srst_chns(struct dsaf_device *dsaf_dev, u32 msk, bool dereset) +{ + u32 reg_addr; + + if (!dereset) + reg_addr = DSAF_SUB_SC_DSAF_RESET_REQ_REG; + else + reg_addr = DSAF_SUB_SC_DSAF_RESET_DREQ_REG; + + dsaf_write_sub(dsaf_dev, reg_addr, msk); +} + +/** + * hns_dsaf_srst_chns_acpi - reset dsaf channels + * @dsaf_dev: dsaf device struct pointer + * @msk: xbar channels mask value: + * @dereset: false - request reset , true - drop reset + * + * bit0-5 for xge0-5 + * bit6-11 for ppe0-5 + * bit12-17 for roce0-5 + * bit18-19 for com/dfx + */ +static void +hns_dsaf_srst_chns_acpi(struct dsaf_device *dsaf_dev, u32 msk, bool dereset) +{ + hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC, + HNS_DSAF_CHN_RESET_FUNC, + msk, dereset); +} + +static void hns_dsaf_roce_srst(struct dsaf_device *dsaf_dev, bool dereset) +{ + if (!dereset) { + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_RESET_REQ_REG, 1); + } else { + dsaf_write_sub(dsaf_dev, + DSAF_SUB_SC_ROCEE_CLK_DIS_REG, 1); + dsaf_write_sub(dsaf_dev, + DSAF_SUB_SC_ROCEE_RESET_DREQ_REG, 1); + msleep(20); + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_CLK_EN_REG, 1); + } +} + +static void hns_dsaf_roce_srst_acpi(struct dsaf_device *dsaf_dev, bool dereset) +{ + hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC, + HNS_ROCE_RESET_FUNC, 0, dereset); +} + +static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, + bool dereset) +{ + u32 reg_val_1; + u32 reg_val_2; + u32 port_rst_off; + + if (port >= DSAF_GE_NUM) + return; + + if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) { + /* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8. + We need check to prevent array overflow */ + if (port >= DSAF_MAX_PORT_NUM) + return; + reg_val_1 = 0x1 << port; + port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; + /* there is difference between V1 and V2 in register.*/ + reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? + 0x1041041 : 0x2082082; + reg_val_2 <<= port_rst_off; + + if (!dereset) { + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG, + reg_val_1); + + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG, + reg_val_2); + } else { + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG, + reg_val_2); + + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG, + reg_val_1); + } + } else { + reg_val_1 = 0x15540; + reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? 0x100 : 0x40; + + reg_val_1 <<= dsaf_dev->reset_offset; + reg_val_2 <<= dsaf_dev->reset_offset; + + if (!dereset) { + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG, + reg_val_1); + + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG, + reg_val_2); + } else { + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG, + reg_val_1); + + dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG, + reg_val_2); + } + } +} + +static void hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device *dsaf_dev, + u32 port, bool dereset) +{ + hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC, + HNS_GE_RESET_FUNC, port, dereset); +} + +static void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, + bool dereset) +{ + u32 reg_val = 0; + u32 reg_addr; + + reg_val |= RESET_REQ_OR_DREQ << dsaf_dev->mac_cb[port]->port_rst_off; + + if (!dereset) + reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG; + else + reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG; + + dsaf_write_sub(dsaf_dev, reg_addr, reg_val); +} + +static void +hns_ppe_srst_by_port_acpi(struct dsaf_device *dsaf_dev, u32 port, bool dereset) +{ + hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC, + HNS_PPE_RESET_FUNC, port, dereset); +} + +static void hns_ppe_com_srst(struct dsaf_device *dsaf_dev, bool dereset) +{ + u32 reg_val; + u32 reg_addr; + + if (!(dev_of_node(dsaf_dev->dev))) + return; + + if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) { + reg_val = RESET_REQ_OR_DREQ; + if (!dereset) + reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG; + else + reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG; + + } else { + reg_val = 0x100 << dsaf_dev->reset_offset; + + if (!dereset) + reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG; + else + reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG; + } + + dsaf_write_sub(dsaf_dev, reg_addr, reg_val); +} + +/** + * hns_mac_get_phy_if - get phy ifterface form serdes mode + * @mac_cb: mac control block + * retuen phy interface + */ +static phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb) +{ + u32 mode; + u32 reg; + bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver); + int mac_id = mac_cb->mac_id; + phy_interface_t phy_if; + + if (is_ver1) { + if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) + return PHY_INTERFACE_MODE_SGMII; + + if (mac_id >= 0 && mac_id <= 3) + reg = HNS_MAC_HILINK4_REG; + else + reg = HNS_MAC_HILINK3_REG; + } else { + if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3) + reg = HNS_MAC_HILINK4V2_REG; + else + reg = HNS_MAC_HILINK3V2_REG; + } + + mode = dsaf_read_sub(mac_cb->dsaf_dev, reg); + if (dsaf_get_bit(mode, mac_cb->port_mode_off)) + phy_if = PHY_INTERFACE_MODE_XGMII; + else + phy_if = PHY_INTERFACE_MODE_SGMII; + + return phy_if; +} + +static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb) +{ + phy_interface_t phy_if = PHY_INTERFACE_MODE_NA; + union acpi_object *obj; + union acpi_object obj_args, argv4; + + obj_args.integer.type = ACPI_TYPE_INTEGER; + obj_args.integer.value = mac_cb->mac_id; + + argv4.type = ACPI_TYPE_PACKAGE; + argv4.package.count = 1; + argv4.package.elements = &obj_args; + + obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev), + &hns_dsaf_acpi_dsm_guid, 0, + HNS_OP_GET_PORT_TYPE_FUNC, &argv4, + ACPI_TYPE_INTEGER); + if (!obj) + return phy_if; + + phy_if = obj->integer.value ? + PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII; + + dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb->mac_id, phy_if); + + ACPI_FREE(obj); + + return phy_if; +} + +static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt) +{ + u32 val = 0; + int ret; + + if (!mac_cb->cpld_ctrl) + return -ENODEV; + + ret = dsaf_read_syscon(mac_cb->cpld_ctrl, + mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET, + &val); + if (ret) + return ret; + + *sfp_prsnt = !val; + return 0; +} + +static int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt) +{ + union acpi_object *obj; + union acpi_object obj_args, argv4; + + obj_args.integer.type = ACPI_TYPE_INTEGER; + obj_args.integer.value = mac_cb->mac_id; + + argv4.type = ACPI_TYPE_PACKAGE; + argv4.package.count = 1; + argv4.package.elements = &obj_args; + + obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev), + &hns_dsaf_acpi_dsm_guid, 0, + HNS_OP_GET_SFP_STAT_FUNC, &argv4, + ACPI_TYPE_INTEGER); + if (!obj) + return -ENODEV; + + *sfp_prsnt = obj->integer.value; + + ACPI_FREE(obj); + + return 0; +} + +/** + * hns_mac_config_sds_loopback - set loop back for serdes + * @mac_cb: mac control block + * @en: enable or disable + * return 0 == success + */ +static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en) +{ + const u8 lane_id[] = { + 0, /* mac 0 -> lane 0 */ + 1, /* mac 1 -> lane 1 */ + 2, /* mac 2 -> lane 2 */ + 3, /* mac 3 -> lane 3 */ + 2, /* mac 4 -> lane 2 */ + 3, /* mac 5 -> lane 3 */ + 0, /* mac 6 -> lane 0 */ + 1 /* mac 7 -> lane 1 */ + }; +#define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2) + u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0); + + int sfp_prsnt = 0; + int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt); + + if (!mac_cb->phy_dev) { + if (ret) + pr_info("please confirm sfp is present or not\n"); + else + if (!sfp_prsnt) + pr_info("no sfp in this eth\n"); + } + + if (mac_cb->serdes_ctrl) { + u32 origin = 0; + + if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) { +#define HILINK_ACCESS_SEL_CFG 0x40008 + /* hilink4 & hilink3 use the same xge training and + * xge u adaptor. There is a hilink access sel cfg + * register to select which one to be configed + */ + if ((!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) && + (mac_cb->mac_id <= 3)) + dsaf_write_syscon(mac_cb->serdes_ctrl, + HILINK_ACCESS_SEL_CFG, 0); + else + dsaf_write_syscon(mac_cb->serdes_ctrl, + HILINK_ACCESS_SEL_CFG, 3); + } + + ret = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset, + &origin); + if (ret) + return ret; + + dsaf_set_field(origin, 1ull << 10, 10, en); + dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin); + } else { + u8 __iomem *base_addr = mac_cb->serdes_vaddr + + (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000); + dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, en); + } + + return 0; +} + +static int +hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en) +{ + union acpi_object *obj; + union acpi_object obj_args[3], argv4; + + obj_args[0].integer.type = ACPI_TYPE_INTEGER; + obj_args[0].integer.value = mac_cb->mac_id; + obj_args[1].integer.type = ACPI_TYPE_INTEGER; + obj_args[1].integer.value = en; + + argv4.type = ACPI_TYPE_PACKAGE; + argv4.package.count = 2; + argv4.package.elements = obj_args; + + obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev), + &hns_dsaf_acpi_dsm_guid, 0, + HNS_OP_SERDES_LP_FUNC, &argv4); + if (!obj) { + dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!", + mac_cb->mac_id); + + return -ENOTSUPP; + } + + ACPI_FREE(obj); + + return 0; +} + +struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev) +{ + struct dsaf_misc_op *misc_op; + + misc_op = devm_kzalloc(dsaf_dev->dev, sizeof(*misc_op), GFP_KERNEL); + if (!misc_op) + return NULL; + + if (dev_of_node(dsaf_dev->dev)) { + misc_op->cpld_set_led = hns_cpld_set_led; + misc_op->cpld_reset_led = cpld_led_reset; + misc_op->cpld_set_led_id = cpld_set_led_id; + + misc_op->dsaf_reset = hns_dsaf_rst; + misc_op->xge_srst = hns_dsaf_xge_srst_by_port; + misc_op->ge_srst = hns_dsaf_ge_srst_by_port; + misc_op->ppe_srst = hns_ppe_srst_by_port; + misc_op->ppe_comm_srst = hns_ppe_com_srst; + misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns; + misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst; + + misc_op->get_phy_if = hns_mac_get_phy_if; + misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt; + + misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback; + } else if (is_acpi_node(dsaf_dev->dev->fwnode)) { + misc_op->cpld_set_led = hns_cpld_set_led_acpi; + misc_op->cpld_reset_led = cpld_led_reset_acpi; + misc_op->cpld_set_led_id = cpld_set_led_id_acpi; + + misc_op->dsaf_reset = hns_dsaf_rst_acpi; + misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi; + misc_op->ge_srst = hns_dsaf_ge_srst_by_port_acpi; + misc_op->ppe_srst = hns_ppe_srst_by_port_acpi; + misc_op->ppe_comm_srst = hns_ppe_com_srst; + misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns_acpi; + misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst_acpi; + + misc_op->get_phy_if = hns_mac_get_phy_if_acpi; + misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi; + + misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi; + } else { + devm_kfree(dsaf_dev->dev, (void *)misc_op); + misc_op = NULL; + } + + return (void *)misc_op; +} + +struct +platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode) +{ + struct device *dev; + + dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode); + return dev ? to_platform_device(dev) : NULL; +} -- cgit v1.2.3