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/dpaa2/dpaa2-mac.c | 586 +++++++++++++++++++++++ 1 file changed, 586 insertions(+) create mode 100644 drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c') diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c new file mode 100644 index 000000000..c886f33f8 --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c @@ -0,0 +1,586 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2019 NXP */ + +#include +#include +#include +#include + +#include "dpaa2-eth.h" +#include "dpaa2-mac.h" + +#define phylink_to_dpaa2_mac(config) \ + container_of((config), struct dpaa2_mac, phylink_config) + +#define DPMAC_PROTOCOL_CHANGE_VER_MAJOR 4 +#define DPMAC_PROTOCOL_CHANGE_VER_MINOR 8 + +#define DPAA2_MAC_FEATURE_PROTOCOL_CHANGE BIT(0) + +static int dpaa2_mac_cmp_ver(struct dpaa2_mac *mac, + u16 ver_major, u16 ver_minor) +{ + if (mac->ver_major == ver_major) + return mac->ver_minor - ver_minor; + return mac->ver_major - ver_major; +} + +static void dpaa2_mac_detect_features(struct dpaa2_mac *mac) +{ + mac->features = 0; + + if (dpaa2_mac_cmp_ver(mac, DPMAC_PROTOCOL_CHANGE_VER_MAJOR, + DPMAC_PROTOCOL_CHANGE_VER_MINOR) >= 0) + mac->features |= DPAA2_MAC_FEATURE_PROTOCOL_CHANGE; +} + +static int phy_mode(enum dpmac_eth_if eth_if, phy_interface_t *if_mode) +{ + *if_mode = PHY_INTERFACE_MODE_NA; + + switch (eth_if) { + case DPMAC_ETH_IF_RGMII: + *if_mode = PHY_INTERFACE_MODE_RGMII; + break; + case DPMAC_ETH_IF_USXGMII: + *if_mode = PHY_INTERFACE_MODE_USXGMII; + break; + case DPMAC_ETH_IF_QSGMII: + *if_mode = PHY_INTERFACE_MODE_QSGMII; + break; + case DPMAC_ETH_IF_SGMII: + *if_mode = PHY_INTERFACE_MODE_SGMII; + break; + case DPMAC_ETH_IF_XFI: + *if_mode = PHY_INTERFACE_MODE_10GBASER; + break; + default: + return -EINVAL; + } + + return 0; +} + +static enum dpmac_eth_if dpmac_eth_if_mode(phy_interface_t if_mode) +{ + switch (if_mode) { + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + return DPMAC_ETH_IF_RGMII; + case PHY_INTERFACE_MODE_USXGMII: + return DPMAC_ETH_IF_USXGMII; + case PHY_INTERFACE_MODE_QSGMII: + return DPMAC_ETH_IF_QSGMII; + case PHY_INTERFACE_MODE_SGMII: + return DPMAC_ETH_IF_SGMII; + case PHY_INTERFACE_MODE_10GBASER: + return DPMAC_ETH_IF_XFI; + case PHY_INTERFACE_MODE_1000BASEX: + return DPMAC_ETH_IF_1000BASEX; + default: + return DPMAC_ETH_IF_MII; + } +} + +static struct fwnode_handle *dpaa2_mac_get_node(struct device *dev, + u16 dpmac_id) +{ + struct fwnode_handle *fwnode, *parent = NULL, *child = NULL; + struct device_node *dpmacs = NULL; + int err; + u32 id; + + fwnode = dev_fwnode(dev->parent); + if (is_of_node(fwnode)) { + dpmacs = of_find_node_by_name(NULL, "dpmacs"); + if (!dpmacs) + return NULL; + parent = of_fwnode_handle(dpmacs); + } else if (is_acpi_node(fwnode)) { + parent = fwnode; + } else { + /* The root dprc device didn't yet get to finalize it's probe, + * thus the fwnode field is not yet set. Defer probe if we are + * facing this situation. + */ + dev_dbg(dev, "dprc not finished probing\n"); + return ERR_PTR(-EPROBE_DEFER); + } + + fwnode_for_each_child_node(parent, child) { + err = -EINVAL; + if (is_acpi_device_node(child)) + err = acpi_get_local_address(ACPI_HANDLE_FWNODE(child), &id); + else if (is_of_node(child)) + err = of_property_read_u32(to_of_node(child), "reg", &id); + if (err) + continue; + + if (id == dpmac_id) { + of_node_put(dpmacs); + return child; + } + } + of_node_put(dpmacs); + return NULL; +} + +static int dpaa2_mac_get_if_mode(struct fwnode_handle *dpmac_node, + struct dpmac_attr attr) +{ + phy_interface_t if_mode; + int err; + + err = fwnode_get_phy_mode(dpmac_node); + if (err > 0) + return err; + + err = phy_mode(attr.eth_if, &if_mode); + if (!err) + return if_mode; + + return err; +} + +static struct phylink_pcs *dpaa2_mac_select_pcs(struct phylink_config *config, + phy_interface_t interface) +{ + struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config); + + return mac->pcs; +} + +static void dpaa2_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) +{ + struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config); + struct dpmac_link_state *dpmac_state = &mac->state; + int err; + + if (state->an_enabled) + dpmac_state->options |= DPMAC_LINK_OPT_AUTONEG; + else + dpmac_state->options &= ~DPMAC_LINK_OPT_AUTONEG; + + err = dpmac_set_link_state(mac->mc_io, 0, + mac->mc_dev->mc_handle, dpmac_state); + if (err) + netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n", + __func__, err); + + if (!mac->serdes_phy) + return; + + /* This happens only if we support changing of protocol at runtime */ + err = dpmac_set_protocol(mac->mc_io, 0, mac->mc_dev->mc_handle, + dpmac_eth_if_mode(state->interface)); + if (err) + netdev_err(mac->net_dev, "dpmac_set_protocol() = %d\n", err); + + err = phy_set_mode_ext(mac->serdes_phy, PHY_MODE_ETHERNET, state->interface); + if (err) + netdev_err(mac->net_dev, "phy_set_mode_ext() = %d\n", err); +} + +static void dpaa2_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ + struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config); + struct dpmac_link_state *dpmac_state = &mac->state; + int err; + + dpmac_state->up = 1; + + dpmac_state->rate = speed; + + if (duplex == DUPLEX_HALF) + dpmac_state->options |= DPMAC_LINK_OPT_HALF_DUPLEX; + else if (duplex == DUPLEX_FULL) + dpmac_state->options &= ~DPMAC_LINK_OPT_HALF_DUPLEX; + + if (rx_pause) + dpmac_state->options |= DPMAC_LINK_OPT_PAUSE; + else + dpmac_state->options &= ~DPMAC_LINK_OPT_PAUSE; + + if (rx_pause ^ tx_pause) + dpmac_state->options |= DPMAC_LINK_OPT_ASYM_PAUSE; + else + dpmac_state->options &= ~DPMAC_LINK_OPT_ASYM_PAUSE; + + err = dpmac_set_link_state(mac->mc_io, 0, + mac->mc_dev->mc_handle, dpmac_state); + if (err) + netdev_err(mac->net_dev, "%s: dpmac_set_link_state() = %d\n", + __func__, err); +} + +static void dpaa2_mac_link_down(struct phylink_config *config, + unsigned int mode, + phy_interface_t interface) +{ + struct dpaa2_mac *mac = phylink_to_dpaa2_mac(config); + struct dpmac_link_state *dpmac_state = &mac->state; + int err; + + dpmac_state->up = 0; + err = dpmac_set_link_state(mac->mc_io, 0, + mac->mc_dev->mc_handle, dpmac_state); + if (err) + netdev_err(mac->net_dev, "dpmac_set_link_state() = %d\n", err); +} + +static const struct phylink_mac_ops dpaa2_mac_phylink_ops = { + .mac_select_pcs = dpaa2_mac_select_pcs, + .mac_config = dpaa2_mac_config, + .mac_link_up = dpaa2_mac_link_up, + .mac_link_down = dpaa2_mac_link_down, +}; + +static int dpaa2_pcs_create(struct dpaa2_mac *mac, + struct fwnode_handle *dpmac_node, + int id) +{ + struct mdio_device *mdiodev; + struct fwnode_handle *node; + + node = fwnode_find_reference(dpmac_node, "pcs-handle", 0); + if (IS_ERR(node)) { + /* do not error out on old DTS files */ + netdev_warn(mac->net_dev, "pcs-handle node not found\n"); + return 0; + } + + if (!fwnode_device_is_available(node)) { + netdev_err(mac->net_dev, "pcs-handle node not available\n"); + fwnode_handle_put(node); + return -ENODEV; + } + + mdiodev = fwnode_mdio_find_device(node); + fwnode_handle_put(node); + if (!mdiodev) { + netdev_dbg(mac->net_dev, "missing PCS device\n"); + return -EPROBE_DEFER; + } + + mac->pcs = lynx_pcs_create(mdiodev); + if (!mac->pcs) { + netdev_err(mac->net_dev, "lynx_pcs_create() failed\n"); + put_device(&mdiodev->dev); + return -ENOMEM; + } + + return 0; +} + +static void dpaa2_pcs_destroy(struct dpaa2_mac *mac) +{ + struct phylink_pcs *phylink_pcs = mac->pcs; + + if (phylink_pcs) { + struct mdio_device *mdio = lynx_get_mdio_device(phylink_pcs); + struct device *dev = &mdio->dev; + + lynx_pcs_destroy(phylink_pcs); + put_device(dev); + mac->pcs = NULL; + } +} + +static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac) +{ + int intf, err; + + /* We support the current interface mode, and if we have a PCS + * similar interface modes that do not require the SerDes lane to be + * reconfigured. + */ + __set_bit(mac->if_mode, mac->phylink_config.supported_interfaces); + if (mac->pcs) { + switch (mac->if_mode) { + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_SGMII: + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + mac->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_SGMII, + mac->phylink_config.supported_interfaces); + break; + + default: + break; + } + } + + if (!mac->serdes_phy) + return; + + /* In case we have access to the SerDes phy/lane, then ask the SerDes + * driver what interfaces are supported based on the current PLL + * configuration. + */ + for (intf = 0; intf < PHY_INTERFACE_MODE_MAX; intf++) { + if (intf == PHY_INTERFACE_MODE_NA) + continue; + + err = phy_validate(mac->serdes_phy, PHY_MODE_ETHERNET, intf, NULL); + if (err) + continue; + + __set_bit(intf, mac->phylink_config.supported_interfaces); + } +} + +void dpaa2_mac_start(struct dpaa2_mac *mac) +{ + ASSERT_RTNL(); + + if (mac->serdes_phy) + phy_power_on(mac->serdes_phy); + + phylink_start(mac->phylink); +} + +void dpaa2_mac_stop(struct dpaa2_mac *mac) +{ + ASSERT_RTNL(); + + phylink_stop(mac->phylink); + + if (mac->serdes_phy) + phy_power_off(mac->serdes_phy); +} + +int dpaa2_mac_connect(struct dpaa2_mac *mac) +{ + struct net_device *net_dev = mac->net_dev; + struct fwnode_handle *dpmac_node; + struct phy *serdes_phy = NULL; + struct phylink *phylink; + int err; + + mac->if_link_type = mac->attr.link_type; + + dpmac_node = mac->fw_node; + if (!dpmac_node) { + netdev_err(net_dev, "No dpmac@%d node found.\n", mac->attr.id); + return -ENODEV; + } + + err = dpaa2_mac_get_if_mode(dpmac_node, mac->attr); + if (err < 0) + return -EINVAL; + mac->if_mode = err; + + if (mac->features & DPAA2_MAC_FEATURE_PROTOCOL_CHANGE && + !phy_interface_mode_is_rgmii(mac->if_mode) && + is_of_node(dpmac_node)) { + serdes_phy = of_phy_get(to_of_node(dpmac_node), NULL); + + if (serdes_phy == ERR_PTR(-ENODEV)) + serdes_phy = NULL; + else if (IS_ERR(serdes_phy)) + return PTR_ERR(serdes_phy); + else + phy_init(serdes_phy); + } + mac->serdes_phy = serdes_phy; + + /* The MAC does not have the capability to add RGMII delays so + * error out if the interface mode requests them and there is no PHY + * to act upon them + */ + if (of_phy_is_fixed_link(to_of_node(dpmac_node)) && + (mac->if_mode == PHY_INTERFACE_MODE_RGMII_ID || + mac->if_mode == PHY_INTERFACE_MODE_RGMII_RXID || + mac->if_mode == PHY_INTERFACE_MODE_RGMII_TXID)) { + netdev_err(net_dev, "RGMII delay not supported\n"); + return -EINVAL; + } + + if ((mac->attr.link_type == DPMAC_LINK_TYPE_PHY && + mac->attr.eth_if != DPMAC_ETH_IF_RGMII) || + mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE) { + err = dpaa2_pcs_create(mac, dpmac_node, mac->attr.id); + if (err) + return err; + } + + memset(&mac->phylink_config, 0, sizeof(mac->phylink_config)); + mac->phylink_config.dev = &net_dev->dev; + mac->phylink_config.type = PHYLINK_NETDEV; + + mac->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | + MAC_10FD | MAC_100FD | MAC_1000FD | MAC_2500FD | MAC_5000FD | + MAC_10000FD; + + dpaa2_mac_set_supported_interfaces(mac); + + phylink = phylink_create(&mac->phylink_config, + dpmac_node, mac->if_mode, + &dpaa2_mac_phylink_ops); + if (IS_ERR(phylink)) { + err = PTR_ERR(phylink); + goto err_pcs_destroy; + } + mac->phylink = phylink; + + rtnl_lock(); + err = phylink_fwnode_phy_connect(mac->phylink, dpmac_node, 0); + rtnl_unlock(); + if (err) { + netdev_err(net_dev, "phylink_fwnode_phy_connect() = %d\n", err); + goto err_phylink_destroy; + } + + return 0; + +err_phylink_destroy: + phylink_destroy(mac->phylink); +err_pcs_destroy: + dpaa2_pcs_destroy(mac); + + return err; +} + +void dpaa2_mac_disconnect(struct dpaa2_mac *mac) +{ + rtnl_lock(); + phylink_disconnect_phy(mac->phylink); + rtnl_unlock(); + + phylink_destroy(mac->phylink); + dpaa2_pcs_destroy(mac); + of_phy_put(mac->serdes_phy); + mac->serdes_phy = NULL; +} + +int dpaa2_mac_open(struct dpaa2_mac *mac) +{ + struct fsl_mc_device *dpmac_dev = mac->mc_dev; + struct net_device *net_dev = mac->net_dev; + struct fwnode_handle *fw_node; + int err; + + err = dpmac_open(mac->mc_io, 0, dpmac_dev->obj_desc.id, + &dpmac_dev->mc_handle); + if (err || !dpmac_dev->mc_handle) { + netdev_err(net_dev, "dpmac_open() = %d\n", err); + return -ENODEV; + } + + err = dpmac_get_attributes(mac->mc_io, 0, dpmac_dev->mc_handle, + &mac->attr); + if (err) { + netdev_err(net_dev, "dpmac_get_attributes() = %d\n", err); + goto err_close_dpmac; + } + + err = dpmac_get_api_version(mac->mc_io, 0, &mac->ver_major, &mac->ver_minor); + if (err) { + netdev_err(net_dev, "dpmac_get_api_version() = %d\n", err); + goto err_close_dpmac; + } + + dpaa2_mac_detect_features(mac); + + /* Find the device node representing the MAC device and link the device + * behind the associated netdev to it. + */ + fw_node = dpaa2_mac_get_node(&mac->mc_dev->dev, mac->attr.id); + if (IS_ERR(fw_node)) { + err = PTR_ERR(fw_node); + goto err_close_dpmac; + } + + mac->fw_node = fw_node; + net_dev->dev.of_node = to_of_node(mac->fw_node); + + return 0; + +err_close_dpmac: + dpmac_close(mac->mc_io, 0, dpmac_dev->mc_handle); + return err; +} + +void dpaa2_mac_close(struct dpaa2_mac *mac) +{ + struct fsl_mc_device *dpmac_dev = mac->mc_dev; + + dpmac_close(mac->mc_io, 0, dpmac_dev->mc_handle); + if (mac->fw_node) + fwnode_handle_put(mac->fw_node); +} + +static char dpaa2_mac_ethtool_stats[][ETH_GSTRING_LEN] = { + [DPMAC_CNT_ING_ALL_FRAME] = "[mac] rx all frames", + [DPMAC_CNT_ING_GOOD_FRAME] = "[mac] rx frames ok", + [DPMAC_CNT_ING_ERR_FRAME] = "[mac] rx frame errors", + [DPMAC_CNT_ING_FRAME_DISCARD] = "[mac] rx frame discards", + [DPMAC_CNT_ING_UCAST_FRAME] = "[mac] rx u-cast", + [DPMAC_CNT_ING_BCAST_FRAME] = "[mac] rx b-cast", + [DPMAC_CNT_ING_MCAST_FRAME] = "[mac] rx m-cast", + [DPMAC_CNT_ING_FRAME_64] = "[mac] rx 64 bytes", + [DPMAC_CNT_ING_FRAME_127] = "[mac] rx 65-127 bytes", + [DPMAC_CNT_ING_FRAME_255] = "[mac] rx 128-255 bytes", + [DPMAC_CNT_ING_FRAME_511] = "[mac] rx 256-511 bytes", + [DPMAC_CNT_ING_FRAME_1023] = "[mac] rx 512-1023 bytes", + [DPMAC_CNT_ING_FRAME_1518] = "[mac] rx 1024-1518 bytes", + [DPMAC_CNT_ING_FRAME_1519_MAX] = "[mac] rx 1519-max bytes", + [DPMAC_CNT_ING_FRAG] = "[mac] rx frags", + [DPMAC_CNT_ING_JABBER] = "[mac] rx jabber", + [DPMAC_CNT_ING_ALIGN_ERR] = "[mac] rx align errors", + [DPMAC_CNT_ING_OVERSIZED] = "[mac] rx oversized", + [DPMAC_CNT_ING_VALID_PAUSE_FRAME] = "[mac] rx pause", + [DPMAC_CNT_ING_BYTE] = "[mac] rx bytes", + [DPMAC_CNT_EGR_GOOD_FRAME] = "[mac] tx frames ok", + [DPMAC_CNT_EGR_UCAST_FRAME] = "[mac] tx u-cast", + [DPMAC_CNT_EGR_MCAST_FRAME] = "[mac] tx m-cast", + [DPMAC_CNT_EGR_BCAST_FRAME] = "[mac] tx b-cast", + [DPMAC_CNT_EGR_ERR_FRAME] = "[mac] tx frame errors", + [DPMAC_CNT_EGR_UNDERSIZED] = "[mac] tx undersized", + [DPMAC_CNT_EGR_VALID_PAUSE_FRAME] = "[mac] tx b-pause", + [DPMAC_CNT_EGR_BYTE] = "[mac] tx bytes", +}; + +#define DPAA2_MAC_NUM_STATS ARRAY_SIZE(dpaa2_mac_ethtool_stats) + +int dpaa2_mac_get_sset_count(void) +{ + return DPAA2_MAC_NUM_STATS; +} + +void dpaa2_mac_get_strings(u8 *data) +{ + u8 *p = data; + int i; + + for (i = 0; i < DPAA2_MAC_NUM_STATS; i++) { + strscpy(p, dpaa2_mac_ethtool_stats[i], ETH_GSTRING_LEN); + p += ETH_GSTRING_LEN; + } +} + +void dpaa2_mac_get_ethtool_stats(struct dpaa2_mac *mac, u64 *data) +{ + struct fsl_mc_device *dpmac_dev = mac->mc_dev; + int i, err; + u64 value; + + for (i = 0; i < DPAA2_MAC_NUM_STATS; i++) { + err = dpmac_get_counter(mac->mc_io, 0, dpmac_dev->mc_handle, + i, &value); + if (err) { + netdev_err_once(mac->net_dev, + "dpmac_get_counter error %d\n", err); + *(data + i) = U64_MAX; + continue; + } + *(data + i) = value; + } +} -- cgit v1.2.3