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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/ethernet/stmicro/stmmac/dwmac1000_core.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 'drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c556
1 files changed, 556 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
new file mode 100644
index 000000000..0e00dd83d
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -0,0 +1,556 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*******************************************************************************
+ This is the driver for the GMAC on-chip Ethernet controller for ST SoCs.
+ DWC Ether MAC 10/100/1000 Universal version 3.41a has been used for
+ developing this code.
+
+ This only implements the mac core functions for this chip.
+
+ Copyright (C) 2007-2009 STMicroelectronics Ltd
+
+
+ Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+*******************************************************************************/
+
+#include <linux/crc32.h>
+#include <linux/slab.h>
+#include <linux/ethtool.h>
+#include <asm/io.h>
+#include "stmmac.h"
+#include "stmmac_pcs.h"
+#include "dwmac1000.h"
+
+static void dwmac1000_core_init(struct mac_device_info *hw,
+ struct net_device *dev)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ u32 value = readl(ioaddr + GMAC_CONTROL);
+ int mtu = dev->mtu;
+
+ /* Configure GMAC core */
+ value |= GMAC_CORE_INIT;
+
+ if (mtu > 1500)
+ value |= GMAC_CONTROL_2K;
+ if (mtu > 2000)
+ value |= GMAC_CONTROL_JE;
+
+ if (hw->ps) {
+ value |= GMAC_CONTROL_TE;
+
+ value &= ~hw->link.speed_mask;
+ switch (hw->ps) {
+ case SPEED_1000:
+ value |= hw->link.speed1000;
+ break;
+ case SPEED_100:
+ value |= hw->link.speed100;
+ break;
+ case SPEED_10:
+ value |= hw->link.speed10;
+ break;
+ }
+ }
+
+ writel(value, ioaddr + GMAC_CONTROL);
+
+ /* Mask GMAC interrupts */
+ value = GMAC_INT_DEFAULT_MASK;
+
+ if (hw->pcs)
+ value &= ~GMAC_INT_DISABLE_PCS;
+
+ writel(value, ioaddr + GMAC_INT_MASK);
+
+#ifdef STMMAC_VLAN_TAG_USED
+ /* Tag detection without filtering */
+ writel(0x0, ioaddr + GMAC_VLAN_TAG);
+#endif
+}
+
+static int dwmac1000_rx_ipc_enable(struct mac_device_info *hw)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ u32 value = readl(ioaddr + GMAC_CONTROL);
+
+ if (hw->rx_csum)
+ value |= GMAC_CONTROL_IPC;
+ else
+ value &= ~GMAC_CONTROL_IPC;
+
+ writel(value, ioaddr + GMAC_CONTROL);
+
+ value = readl(ioaddr + GMAC_CONTROL);
+
+ return !!(value & GMAC_CONTROL_IPC);
+}
+
+static void dwmac1000_dump_regs(struct mac_device_info *hw, u32 *reg_space)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ int i;
+
+ for (i = 0; i < 55; i++)
+ reg_space[i] = readl(ioaddr + i * 4);
+}
+
+static void dwmac1000_set_umac_addr(struct mac_device_info *hw,
+ const unsigned char *addr,
+ unsigned int reg_n)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ stmmac_set_mac_addr(ioaddr, addr, GMAC_ADDR_HIGH(reg_n),
+ GMAC_ADDR_LOW(reg_n));
+}
+
+static void dwmac1000_get_umac_addr(struct mac_device_info *hw,
+ unsigned char *addr,
+ unsigned int reg_n)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ stmmac_get_mac_addr(ioaddr, addr, GMAC_ADDR_HIGH(reg_n),
+ GMAC_ADDR_LOW(reg_n));
+}
+
+static void dwmac1000_set_mchash(void __iomem *ioaddr, u32 *mcfilterbits,
+ int mcbitslog2)
+{
+ int numhashregs, regs;
+
+ switch (mcbitslog2) {
+ case 6:
+ writel(mcfilterbits[0], ioaddr + GMAC_HASH_LOW);
+ writel(mcfilterbits[1], ioaddr + GMAC_HASH_HIGH);
+ return;
+ case 7:
+ numhashregs = 4;
+ break;
+ case 8:
+ numhashregs = 8;
+ break;
+ default:
+ pr_debug("STMMAC: err in setting multicast filter\n");
+ return;
+ }
+ for (regs = 0; regs < numhashregs; regs++)
+ writel(mcfilterbits[regs],
+ ioaddr + GMAC_EXTHASH_BASE + regs * 4);
+}
+
+static void dwmac1000_set_filter(struct mac_device_info *hw,
+ struct net_device *dev)
+{
+ void __iomem *ioaddr = (void __iomem *)dev->base_addr;
+ unsigned int value = 0;
+ unsigned int perfect_addr_number = hw->unicast_filter_entries;
+ u32 mc_filter[8];
+ int mcbitslog2 = hw->mcast_bits_log2;
+
+ pr_debug("%s: # mcasts %d, # unicast %d\n", __func__,
+ netdev_mc_count(dev), netdev_uc_count(dev));
+
+ memset(mc_filter, 0, sizeof(mc_filter));
+
+ if (dev->flags & IFF_PROMISC) {
+ value = GMAC_FRAME_FILTER_PR | GMAC_FRAME_FILTER_PCF;
+ } else if (dev->flags & IFF_ALLMULTI) {
+ value = GMAC_FRAME_FILTER_PM; /* pass all multi */
+ } else if (!netdev_mc_empty(dev) && (mcbitslog2 == 0)) {
+ /* Fall back to all multicast if we've no filter */
+ value = GMAC_FRAME_FILTER_PM;
+ } else if (!netdev_mc_empty(dev)) {
+ struct netdev_hw_addr *ha;
+
+ /* Hash filter for multicast */
+ value = GMAC_FRAME_FILTER_HMC;
+
+ netdev_for_each_mc_addr(ha, dev) {
+ /* The upper n bits of the calculated CRC are used to
+ * index the contents of the hash table. The number of
+ * bits used depends on the hardware configuration
+ * selected at core configuration time.
+ */
+ int bit_nr = bitrev32(~crc32_le(~0, ha->addr,
+ ETH_ALEN)) >>
+ (32 - mcbitslog2);
+ /* The most significant bit determines the register to
+ * use (H/L) while the other 5 bits determine the bit
+ * within the register.
+ */
+ mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+ }
+ }
+
+ value |= GMAC_FRAME_FILTER_HPF;
+ dwmac1000_set_mchash(ioaddr, mc_filter, mcbitslog2);
+
+ /* Handle multiple unicast addresses (perfect filtering) */
+ if (netdev_uc_count(dev) > perfect_addr_number)
+ /* Switch to promiscuous mode if more than unicast
+ * addresses are requested than supported by hardware.
+ */
+ value |= GMAC_FRAME_FILTER_PR;
+ else {
+ int reg = 1;
+ struct netdev_hw_addr *ha;
+
+ netdev_for_each_uc_addr(ha, dev) {
+ stmmac_set_mac_addr(ioaddr, ha->addr,
+ GMAC_ADDR_HIGH(reg),
+ GMAC_ADDR_LOW(reg));
+ reg++;
+ }
+
+ while (reg < perfect_addr_number) {
+ writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
+ writel(0, ioaddr + GMAC_ADDR_LOW(reg));
+ reg++;
+ }
+ }
+
+#ifdef FRAME_FILTER_DEBUG
+ /* Enable Receive all mode (to debug filtering_fail errors) */
+ value |= GMAC_FRAME_FILTER_RA;
+#endif
+ writel(value, ioaddr + GMAC_FRAME_FILTER);
+}
+
+
+static void dwmac1000_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
+ unsigned int fc, unsigned int pause_time,
+ u32 tx_cnt)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ /* Set flow such that DZPQ in Mac Register 6 is 0,
+ * and unicast pause detect is enabled.
+ */
+ unsigned int flow = GMAC_FLOW_CTRL_UP;
+
+ pr_debug("GMAC Flow-Control:\n");
+ if (fc & FLOW_RX) {
+ pr_debug("\tReceive Flow-Control ON\n");
+ flow |= GMAC_FLOW_CTRL_RFE;
+ }
+ if (fc & FLOW_TX) {
+ pr_debug("\tTransmit Flow-Control ON\n");
+ flow |= GMAC_FLOW_CTRL_TFE;
+ }
+
+ if (duplex) {
+ pr_debug("\tduplex mode: PAUSE %d\n", pause_time);
+ flow |= (pause_time << GMAC_FLOW_CTRL_PT_SHIFT);
+ }
+
+ writel(flow, ioaddr + GMAC_FLOW_CTRL);
+}
+
+static void dwmac1000_pmt(struct mac_device_info *hw, unsigned long mode)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ unsigned int pmt = 0;
+
+ if (mode & WAKE_MAGIC) {
+ pr_debug("GMAC: WOL Magic frame\n");
+ pmt |= power_down | magic_pkt_en;
+ }
+ if (mode & WAKE_UCAST) {
+ pr_debug("GMAC: WOL on global unicast\n");
+ pmt |= power_down | global_unicast | wake_up_frame_en;
+ }
+
+ writel(pmt, ioaddr + GMAC_PMT);
+}
+
+/* RGMII or SMII interface */
+static void dwmac1000_rgsmii(void __iomem *ioaddr, struct stmmac_extra_stats *x)
+{
+ u32 status;
+
+ status = readl(ioaddr + GMAC_RGSMIIIS);
+ x->irq_rgmii_n++;
+
+ /* Check the link status */
+ if (status & GMAC_RGSMIIIS_LNKSTS) {
+ int speed_value;
+
+ x->pcs_link = 1;
+
+ speed_value = ((status & GMAC_RGSMIIIS_SPEED) >>
+ GMAC_RGSMIIIS_SPEED_SHIFT);
+ if (speed_value == GMAC_RGSMIIIS_SPEED_125)
+ x->pcs_speed = SPEED_1000;
+ else if (speed_value == GMAC_RGSMIIIS_SPEED_25)
+ x->pcs_speed = SPEED_100;
+ else
+ x->pcs_speed = SPEED_10;
+
+ x->pcs_duplex = (status & GMAC_RGSMIIIS_LNKMOD_MASK);
+
+ pr_info("Link is Up - %d/%s\n", (int)x->pcs_speed,
+ x->pcs_duplex ? "Full" : "Half");
+ } else {
+ x->pcs_link = 0;
+ pr_info("Link is Down\n");
+ }
+}
+
+static int dwmac1000_irq_status(struct mac_device_info *hw,
+ struct stmmac_extra_stats *x)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ u32 intr_status = readl(ioaddr + GMAC_INT_STATUS);
+ u32 intr_mask = readl(ioaddr + GMAC_INT_MASK);
+ int ret = 0;
+
+ /* Discard masked bits */
+ intr_status &= ~intr_mask;
+
+ /* Not used events (e.g. MMC interrupts) are not handled. */
+ if ((intr_status & GMAC_INT_STATUS_MMCTIS))
+ x->mmc_tx_irq_n++;
+ if (unlikely(intr_status & GMAC_INT_STATUS_MMCRIS))
+ x->mmc_rx_irq_n++;
+ if (unlikely(intr_status & GMAC_INT_STATUS_MMCCSUM))
+ x->mmc_rx_csum_offload_irq_n++;
+ if (unlikely(intr_status & GMAC_INT_DISABLE_PMT)) {
+ /* clear the PMT bits 5 and 6 by reading the PMT status reg */
+ readl(ioaddr + GMAC_PMT);
+ x->irq_receive_pmt_irq_n++;
+ }
+
+ /* MAC tx/rx EEE LPI entry/exit interrupts */
+ if (intr_status & GMAC_INT_STATUS_LPIIS) {
+ /* Clean LPI interrupt by reading the Reg 12 */
+ ret = readl(ioaddr + LPI_CTRL_STATUS);
+
+ if (ret & LPI_CTRL_STATUS_TLPIEN)
+ x->irq_tx_path_in_lpi_mode_n++;
+ if (ret & LPI_CTRL_STATUS_TLPIEX)
+ x->irq_tx_path_exit_lpi_mode_n++;
+ if (ret & LPI_CTRL_STATUS_RLPIEN)
+ x->irq_rx_path_in_lpi_mode_n++;
+ if (ret & LPI_CTRL_STATUS_RLPIEX)
+ x->irq_rx_path_exit_lpi_mode_n++;
+ }
+
+ dwmac_pcs_isr(ioaddr, GMAC_PCS_BASE, intr_status, x);
+
+ if (intr_status & PCS_RGSMIIIS_IRQ)
+ dwmac1000_rgsmii(ioaddr, x);
+
+ return ret;
+}
+
+static void dwmac1000_set_eee_mode(struct mac_device_info *hw,
+ bool en_tx_lpi_clockgating)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ u32 value;
+
+ /*TODO - en_tx_lpi_clockgating treatment */
+
+ /* Enable the link status receive on RGMII, SGMII ore SMII
+ * receive path and instruct the transmit to enter in LPI
+ * state.
+ */
+ value = readl(ioaddr + LPI_CTRL_STATUS);
+ value |= LPI_CTRL_STATUS_LPIEN | LPI_CTRL_STATUS_LPITXA;
+ writel(value, ioaddr + LPI_CTRL_STATUS);
+}
+
+static void dwmac1000_reset_eee_mode(struct mac_device_info *hw)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ u32 value;
+
+ value = readl(ioaddr + LPI_CTRL_STATUS);
+ value &= ~(LPI_CTRL_STATUS_LPIEN | LPI_CTRL_STATUS_LPITXA);
+ writel(value, ioaddr + LPI_CTRL_STATUS);
+}
+
+static void dwmac1000_set_eee_pls(struct mac_device_info *hw, int link)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ u32 value;
+
+ value = readl(ioaddr + LPI_CTRL_STATUS);
+
+ if (link)
+ value |= LPI_CTRL_STATUS_PLS;
+ else
+ value &= ~LPI_CTRL_STATUS_PLS;
+
+ writel(value, ioaddr + LPI_CTRL_STATUS);
+}
+
+static void dwmac1000_set_eee_timer(struct mac_device_info *hw, int ls, int tw)
+{
+ void __iomem *ioaddr = hw->pcsr;
+ int value = ((tw & 0xffff)) | ((ls & 0x7ff) << 16);
+
+ /* Program the timers in the LPI timer control register:
+ * LS: minimum time (ms) for which the link
+ * status from PHY should be ok before transmitting
+ * the LPI pattern.
+ * TW: minimum time (us) for which the core waits
+ * after it has stopped transmitting the LPI pattern.
+ */
+ writel(value, ioaddr + LPI_TIMER_CTRL);
+}
+
+static void dwmac1000_ctrl_ane(void __iomem *ioaddr, bool ane, bool srgmi_ral,
+ bool loopback)
+{
+ dwmac_ctrl_ane(ioaddr, GMAC_PCS_BASE, ane, srgmi_ral, loopback);
+}
+
+static void dwmac1000_rane(void __iomem *ioaddr, bool restart)
+{
+ dwmac_rane(ioaddr, GMAC_PCS_BASE, restart);
+}
+
+static void dwmac1000_get_adv_lp(void __iomem *ioaddr, struct rgmii_adv *adv)
+{
+ dwmac_get_adv_lp(ioaddr, GMAC_PCS_BASE, adv);
+}
+
+static void dwmac1000_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x,
+ u32 rx_queues, u32 tx_queues)
+{
+ u32 value = readl(ioaddr + GMAC_DEBUG);
+
+ if (value & GMAC_DEBUG_TXSTSFSTS)
+ x->mtl_tx_status_fifo_full++;
+ if (value & GMAC_DEBUG_TXFSTS)
+ x->mtl_tx_fifo_not_empty++;
+ if (value & GMAC_DEBUG_TWCSTS)
+ x->mmtl_fifo_ctrl++;
+ if (value & GMAC_DEBUG_TRCSTS_MASK) {
+ u32 trcsts = (value & GMAC_DEBUG_TRCSTS_MASK)
+ >> GMAC_DEBUG_TRCSTS_SHIFT;
+ if (trcsts == GMAC_DEBUG_TRCSTS_WRITE)
+ x->mtl_tx_fifo_read_ctrl_write++;
+ else if (trcsts == GMAC_DEBUG_TRCSTS_TXW)
+ x->mtl_tx_fifo_read_ctrl_wait++;
+ else if (trcsts == GMAC_DEBUG_TRCSTS_READ)
+ x->mtl_tx_fifo_read_ctrl_read++;
+ else
+ x->mtl_tx_fifo_read_ctrl_idle++;
+ }
+ if (value & GMAC_DEBUG_TXPAUSED)
+ x->mac_tx_in_pause++;
+ if (value & GMAC_DEBUG_TFCSTS_MASK) {
+ u32 tfcsts = (value & GMAC_DEBUG_TFCSTS_MASK)
+ >> GMAC_DEBUG_TFCSTS_SHIFT;
+
+ if (tfcsts == GMAC_DEBUG_TFCSTS_XFER)
+ x->mac_tx_frame_ctrl_xfer++;
+ else if (tfcsts == GMAC_DEBUG_TFCSTS_GEN_PAUSE)
+ x->mac_tx_frame_ctrl_pause++;
+ else if (tfcsts == GMAC_DEBUG_TFCSTS_WAIT)
+ x->mac_tx_frame_ctrl_wait++;
+ else
+ x->mac_tx_frame_ctrl_idle++;
+ }
+ if (value & GMAC_DEBUG_TPESTS)
+ x->mac_gmii_tx_proto_engine++;
+ if (value & GMAC_DEBUG_RXFSTS_MASK) {
+ u32 rxfsts = (value & GMAC_DEBUG_RXFSTS_MASK)
+ >> GMAC_DEBUG_RRCSTS_SHIFT;
+
+ if (rxfsts == GMAC_DEBUG_RXFSTS_FULL)
+ x->mtl_rx_fifo_fill_level_full++;
+ else if (rxfsts == GMAC_DEBUG_RXFSTS_AT)
+ x->mtl_rx_fifo_fill_above_thresh++;
+ else if (rxfsts == GMAC_DEBUG_RXFSTS_BT)
+ x->mtl_rx_fifo_fill_below_thresh++;
+ else
+ x->mtl_rx_fifo_fill_level_empty++;
+ }
+ if (value & GMAC_DEBUG_RRCSTS_MASK) {
+ u32 rrcsts = (value & GMAC_DEBUG_RRCSTS_MASK) >>
+ GMAC_DEBUG_RRCSTS_SHIFT;
+
+ if (rrcsts == GMAC_DEBUG_RRCSTS_FLUSH)
+ x->mtl_rx_fifo_read_ctrl_flush++;
+ else if (rrcsts == GMAC_DEBUG_RRCSTS_RSTAT)
+ x->mtl_rx_fifo_read_ctrl_read_data++;
+ else if (rrcsts == GMAC_DEBUG_RRCSTS_RDATA)
+ x->mtl_rx_fifo_read_ctrl_status++;
+ else
+ x->mtl_rx_fifo_read_ctrl_idle++;
+ }
+ if (value & GMAC_DEBUG_RWCSTS)
+ x->mtl_rx_fifo_ctrl_active++;
+ if (value & GMAC_DEBUG_RFCFCSTS_MASK)
+ x->mac_rx_frame_ctrl_fifo = (value & GMAC_DEBUG_RFCFCSTS_MASK)
+ >> GMAC_DEBUG_RFCFCSTS_SHIFT;
+ if (value & GMAC_DEBUG_RPESTS)
+ x->mac_gmii_rx_proto_engine++;
+}
+
+static void dwmac1000_set_mac_loopback(void __iomem *ioaddr, bool enable)
+{
+ u32 value = readl(ioaddr + GMAC_CONTROL);
+
+ if (enable)
+ value |= GMAC_CONTROL_LM;
+ else
+ value &= ~GMAC_CONTROL_LM;
+
+ writel(value, ioaddr + GMAC_CONTROL);
+}
+
+const struct stmmac_ops dwmac1000_ops = {
+ .core_init = dwmac1000_core_init,
+ .set_mac = stmmac_set_mac,
+ .rx_ipc = dwmac1000_rx_ipc_enable,
+ .dump_regs = dwmac1000_dump_regs,
+ .host_irq_status = dwmac1000_irq_status,
+ .set_filter = dwmac1000_set_filter,
+ .flow_ctrl = dwmac1000_flow_ctrl,
+ .pmt = dwmac1000_pmt,
+ .set_umac_addr = dwmac1000_set_umac_addr,
+ .get_umac_addr = dwmac1000_get_umac_addr,
+ .set_eee_mode = dwmac1000_set_eee_mode,
+ .reset_eee_mode = dwmac1000_reset_eee_mode,
+ .set_eee_timer = dwmac1000_set_eee_timer,
+ .set_eee_pls = dwmac1000_set_eee_pls,
+ .debug = dwmac1000_debug,
+ .pcs_ctrl_ane = dwmac1000_ctrl_ane,
+ .pcs_rane = dwmac1000_rane,
+ .pcs_get_adv_lp = dwmac1000_get_adv_lp,
+ .set_mac_loopback = dwmac1000_set_mac_loopback,
+};
+
+int dwmac1000_setup(struct stmmac_priv *priv)
+{
+ struct mac_device_info *mac = priv->hw;
+
+ dev_info(priv->device, "\tDWMAC1000\n");
+
+ priv->dev->priv_flags |= IFF_UNICAST_FLT;
+ mac->pcsr = priv->ioaddr;
+ mac->multicast_filter_bins = priv->plat->multicast_filter_bins;
+ mac->unicast_filter_entries = priv->plat->unicast_filter_entries;
+ mac->mcast_bits_log2 = 0;
+
+ if (mac->multicast_filter_bins)
+ mac->mcast_bits_log2 = ilog2(mac->multicast_filter_bins);
+
+ mac->link.duplex = GMAC_CONTROL_DM;
+ mac->link.speed10 = GMAC_CONTROL_PS;
+ mac->link.speed100 = GMAC_CONTROL_PS | GMAC_CONTROL_FES;
+ mac->link.speed1000 = 0;
+ mac->link.speed_mask = GMAC_CONTROL_PS | GMAC_CONTROL_FES;
+ mac->mii.addr = GMAC_MII_ADDR;
+ mac->mii.data = GMAC_MII_DATA;
+ mac->mii.addr_shift = 11;
+ mac->mii.addr_mask = 0x0000F800;
+ mac->mii.reg_shift = 6;
+ mac->mii.reg_mask = 0x000007C0;
+ mac->mii.clk_csr_shift = 2;
+ mac->mii.clk_csr_mask = GENMASK(5, 2);
+
+ return 0;
+}