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/freescale/fman/mac.c | 351 ++++++++++++++++++++++++++++++ 1 file changed, 351 insertions(+) create mode 100644 drivers/net/ethernet/freescale/fman/mac.c (limited to 'drivers/net/ethernet/freescale/fman/mac.c') diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c new file mode 100644 index 000000000..43665806c --- /dev/null +++ b/drivers/net/ethernet/freescale/fman/mac.c @@ -0,0 +1,351 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later +/* + * Copyright 2008 - 2015 Freescale Semiconductor Inc. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mac.h" +#include "fman_mac.h" +#include "fman_dtsec.h" +#include "fman_tgec.h" +#include "fman_memac.h" + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_DESCRIPTION("FSL FMan MAC API based driver"); + +struct mac_priv_s { + u8 cell_index; + struct fman *fman; + /* List of multicast addresses */ + struct list_head mc_addr_list; + struct platform_device *eth_dev; + u16 speed; +}; + +struct mac_address { + u8 addr[ETH_ALEN]; + struct list_head list; +}; + +static void mac_exception(struct mac_device *mac_dev, + enum fman_mac_exceptions ex) +{ + if (ex == FM_MAC_EX_10G_RX_FIFO_OVFL) { + /* don't flag RX FIFO after the first */ + mac_dev->set_exception(mac_dev->fman_mac, + FM_MAC_EX_10G_RX_FIFO_OVFL, false); + dev_err(mac_dev->dev, "10G MAC got RX FIFO Error = %x\n", ex); + } + + dev_dbg(mac_dev->dev, "%s:%s() -> %d\n", KBUILD_BASENAME ".c", + __func__, ex); +} + +int fman_set_multi(struct net_device *net_dev, struct mac_device *mac_dev) +{ + struct mac_priv_s *priv; + struct mac_address *old_addr, *tmp; + struct netdev_hw_addr *ha; + int err; + enet_addr_t *addr; + + priv = mac_dev->priv; + + /* Clear previous address list */ + list_for_each_entry_safe(old_addr, tmp, &priv->mc_addr_list, list) { + addr = (enet_addr_t *)old_addr->addr; + err = mac_dev->remove_hash_mac_addr(mac_dev->fman_mac, addr); + if (err < 0) + return err; + + list_del(&old_addr->list); + kfree(old_addr); + } + + /* Add all the addresses from the new list */ + netdev_for_each_mc_addr(ha, net_dev) { + addr = (enet_addr_t *)ha->addr; + err = mac_dev->add_hash_mac_addr(mac_dev->fman_mac, addr); + if (err < 0) + return err; + + tmp = kmalloc(sizeof(*tmp), GFP_ATOMIC); + if (!tmp) + return -ENOMEM; + + ether_addr_copy(tmp->addr, ha->addr); + list_add(&tmp->list, &priv->mc_addr_list); + } + return 0; +} + +static DEFINE_MUTEX(eth_lock); + +static struct platform_device *dpaa_eth_add_device(int fman_id, + struct mac_device *mac_dev) +{ + struct platform_device *pdev; + struct dpaa_eth_data data; + struct mac_priv_s *priv; + static int dpaa_eth_dev_cnt; + int ret; + + priv = mac_dev->priv; + + data.mac_dev = mac_dev; + data.mac_hw_id = priv->cell_index; + data.fman_hw_id = fman_id; + + mutex_lock(ð_lock); + pdev = platform_device_alloc("dpaa-ethernet", dpaa_eth_dev_cnt); + if (!pdev) { + ret = -ENOMEM; + goto no_mem; + } + + pdev->dev.parent = mac_dev->dev; + + ret = platform_device_add_data(pdev, &data, sizeof(data)); + if (ret) + goto err; + + ret = platform_device_add(pdev); + if (ret) + goto err; + + dpaa_eth_dev_cnt++; + mutex_unlock(ð_lock); + + return pdev; + +err: + platform_device_put(pdev); +no_mem: + mutex_unlock(ð_lock); + + return ERR_PTR(ret); +} + +static const struct of_device_id mac_match[] = { + { .compatible = "fsl,fman-dtsec", .data = dtsec_initialization }, + { .compatible = "fsl,fman-xgec", .data = tgec_initialization }, + { .compatible = "fsl,fman-memac", .data = memac_initialization }, + {} +}; +MODULE_DEVICE_TABLE(of, mac_match); + +static int mac_probe(struct platform_device *_of_dev) +{ + int err, i, nph; + int (*init)(struct mac_device *mac_dev, struct device_node *mac_node, + struct fman_mac_params *params); + struct device *dev; + struct device_node *mac_node, *dev_node; + struct mac_device *mac_dev; + struct platform_device *of_dev; + struct mac_priv_s *priv; + struct fman_mac_params params; + u32 val; + u8 fman_id; + phy_interface_t phy_if; + + dev = &_of_dev->dev; + mac_node = dev->of_node; + init = of_device_get_match_data(dev); + + mac_dev = devm_kzalloc(dev, sizeof(*mac_dev), GFP_KERNEL); + if (!mac_dev) + return -ENOMEM; + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + platform_set_drvdata(_of_dev, mac_dev); + + /* Save private information */ + mac_dev->priv = priv; + mac_dev->dev = dev; + + INIT_LIST_HEAD(&priv->mc_addr_list); + + /* Get the FM node */ + dev_node = of_get_parent(mac_node); + if (!dev_node) { + dev_err(dev, "of_get_parent(%pOF) failed\n", + mac_node); + return -EINVAL; + } + + of_dev = of_find_device_by_node(dev_node); + if (!of_dev) { + dev_err(dev, "of_find_device_by_node(%pOF) failed\n", dev_node); + err = -EINVAL; + goto _return_of_node_put; + } + + /* Get the FMan cell-index */ + err = of_property_read_u32(dev_node, "cell-index", &val); + if (err) { + dev_err(dev, "failed to read cell-index for %pOF\n", dev_node); + err = -EINVAL; + goto _return_of_node_put; + } + /* cell-index 0 => FMan id 1 */ + fman_id = (u8)(val + 1); + + priv->fman = fman_bind(&of_dev->dev); + if (!priv->fman) { + dev_err(dev, "fman_bind(%pOF) failed\n", dev_node); + err = -ENODEV; + goto _return_of_node_put; + } + + of_node_put(dev_node); + + /* Get the address of the memory mapped registers */ + mac_dev->res = platform_get_mem_or_io(_of_dev, 0); + if (!mac_dev->res) { + dev_err(dev, "could not get registers\n"); + return -EINVAL; + } + + err = devm_request_resource(dev, fman_get_mem_region(priv->fman), + mac_dev->res); + if (err) { + dev_err_probe(dev, err, "could not request resource\n"); + return err; + } + + mac_dev->vaddr = devm_ioremap(dev, mac_dev->res->start, + resource_size(mac_dev->res)); + if (!mac_dev->vaddr) { + dev_err(dev, "devm_ioremap() failed\n"); + return -EIO; + } + + if (!of_device_is_available(mac_node)) + return -ENODEV; + + /* Get the cell-index */ + err = of_property_read_u32(mac_node, "cell-index", &val); + if (err) { + dev_err(dev, "failed to read cell-index for %pOF\n", mac_node); + return -EINVAL; + } + priv->cell_index = (u8)val; + + /* Get the MAC address */ + err = of_get_mac_address(mac_node, mac_dev->addr); + if (err) + dev_warn(dev, "of_get_mac_address(%pOF) failed\n", mac_node); + + /* Get the port handles */ + nph = of_count_phandle_with_args(mac_node, "fsl,fman-ports", NULL); + if (unlikely(nph < 0)) { + dev_err(dev, "of_count_phandle_with_args(%pOF, fsl,fman-ports) failed\n", + mac_node); + return nph; + } + + if (nph != ARRAY_SIZE(mac_dev->port)) { + dev_err(dev, "Not supported number of fman-ports handles of mac node %pOF from device tree\n", + mac_node); + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) { + /* Find the port node */ + dev_node = of_parse_phandle(mac_node, "fsl,fman-ports", i); + if (!dev_node) { + dev_err(dev, "of_parse_phandle(%pOF, fsl,fman-ports) failed\n", + mac_node); + return -EINVAL; + } + + of_dev = of_find_device_by_node(dev_node); + if (!of_dev) { + dev_err(dev, "of_find_device_by_node(%pOF) failed\n", + dev_node); + err = -EINVAL; + goto _return_of_node_put; + } + + mac_dev->port[i] = fman_port_bind(&of_dev->dev); + if (!mac_dev->port[i]) { + dev_err(dev, "dev_get_drvdata(%pOF) failed\n", + dev_node); + err = -EINVAL; + goto _return_of_node_put; + } + of_node_put(dev_node); + } + + /* Get the PHY connection type */ + err = of_get_phy_mode(mac_node, &phy_if); + if (err) { + dev_warn(dev, + "of_get_phy_mode() for %pOF failed. Defaulting to SGMII\n", + mac_node); + phy_if = PHY_INTERFACE_MODE_SGMII; + } + mac_dev->phy_if = phy_if; + + params.mac_id = priv->cell_index; + params.fm = (void *)priv->fman; + params.exception_cb = mac_exception; + params.event_cb = mac_exception; + + err = init(mac_dev, mac_node, ¶ms); + if (err < 0) + return err; + + if (!is_zero_ether_addr(mac_dev->addr)) + dev_info(dev, "FMan MAC address: %pM\n", mac_dev->addr); + + priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev); + if (IS_ERR(priv->eth_dev)) { + err = PTR_ERR(priv->eth_dev); + dev_err(dev, "failed to add Ethernet platform device for MAC %d\n", + priv->cell_index); + priv->eth_dev = NULL; + } + + return err; + +_return_of_node_put: + of_node_put(dev_node); + return err; +} + +static int mac_remove(struct platform_device *pdev) +{ + struct mac_device *mac_dev = platform_get_drvdata(pdev); + + platform_device_unregister(mac_dev->priv->eth_dev); + return 0; +} + +static struct platform_driver mac_driver = { + .driver = { + .name = KBUILD_MODNAME, + .of_match_table = mac_match, + }, + .probe = mac_probe, + .remove = mac_remove, +}; + +builtin_platform_driver(mac_driver); -- cgit v1.2.3