diff options
author | 2023-02-21 18:24:12 -0800 | |
---|---|---|
committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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.c | 556 |
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; +} |