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().
  ...

1 files changed, 1262 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
new file mode 100644
index 000000000..587ad81a2
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -0,0 +1,1262 @@
+// 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 "fman_memac.h"
+#include "fman.h"
+#include "mac.h"
+
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/pcs-lynx.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <linux/phy/phy.h>
+#include <linux/of_mdio.h>
+
+/* Num of additional exact match MAC adr regs */
+#define MEMAC_NUM_OF_PADDRS 7
+
+/* Control and Configuration Register (COMMAND_CONFIG) */
+#define CMD_CFG_REG_LOWP_RXETY	0x01000000 /* 07 Rx low power indication */
+#define CMD_CFG_TX_LOWP_ENA	0x00800000 /* 08 Tx Low Power Idle Enable */
+#define CMD_CFG_PFC_MODE	0x00080000 /* 12 Enable PFC */
+#define CMD_CFG_NO_LEN_CHK	0x00020000 /* 14 Payload length check disable */
+#define CMD_CFG_SW_RESET	0x00001000 /* 19 S/W Reset, self clearing bit */
+#define CMD_CFG_TX_PAD_EN	0x00000800 /* 20 Enable Tx padding of frames */
+#define CMD_CFG_PAUSE_IGNORE	0x00000100 /* 23 Ignore Pause frame quanta */
+#define CMD_CFG_CRC_FWD		0x00000040 /* 25 Terminate/frwd CRC of frames */
+#define CMD_CFG_PAD_EN		0x00000020 /* 26 Frame padding removal */
+#define CMD_CFG_PROMIS_EN	0x00000010 /* 27 Promiscuous operation enable */
+#define CMD_CFG_RX_EN		0x00000002 /* 30 MAC receive path enable */
+#define CMD_CFG_TX_EN		0x00000001 /* 31 MAC transmit path enable */
+
+/* Transmit FIFO Sections Register (TX_FIFO_SECTIONS) */
+#define TX_FIFO_SECTIONS_TX_EMPTY_MASK			0xFFFF0000
+#define TX_FIFO_SECTIONS_TX_AVAIL_MASK			0x0000FFFF
+#define TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_10G		0x00400000
+#define TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_1G		0x00100000
+#define TX_FIFO_SECTIONS_TX_AVAIL_10G			0x00000019
+#define TX_FIFO_SECTIONS_TX_AVAIL_1G			0x00000020
+#define TX_FIFO_SECTIONS_TX_AVAIL_SLOW_10G		0x00000060
+
+#define GET_TX_EMPTY_DEFAULT_VALUE(_val)				\
+do {									\
+	_val &= ~TX_FIFO_SECTIONS_TX_EMPTY_MASK;			\
+	((_val == TX_FIFO_SECTIONS_TX_AVAIL_10G) ?			\
+			(_val |= TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_10G) :\
+			(_val |= TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_1G));\
+} while (0)
+
+/* Interface Mode Register (IF_MODE) */
+
+#define IF_MODE_MASK		0x00000003 /* 30-31 Mask on i/f mode bits */
+#define IF_MODE_10G		0x00000000 /* 30-31 10G interface */
+#define IF_MODE_MII		0x00000001 /* 30-31 MII interface */
+#define IF_MODE_GMII		0x00000002 /* 30-31 GMII (1G) interface */
+#define IF_MODE_RGMII		0x00000004
+#define IF_MODE_RGMII_AUTO	0x00008000
+#define IF_MODE_RGMII_1000	0x00004000 /* 10 - 1000Mbps RGMII */
+#define IF_MODE_RGMII_100	0x00000000 /* 00 - 100Mbps RGMII */
+#define IF_MODE_RGMII_10	0x00002000 /* 01 - 10Mbps RGMII */
+#define IF_MODE_RGMII_SP_MASK	0x00006000 /* Setsp mask bits */
+#define IF_MODE_RGMII_FD	0x00001000 /* Full duplex RGMII */
+#define IF_MODE_HD		0x00000040 /* Half duplex operation */
+
+/* Hash table Control Register (HASHTABLE_CTRL) */
+#define HASH_CTRL_MCAST_EN	0x00000100
+/* 26-31 Hash table address code */
+#define HASH_CTRL_ADDR_MASK	0x0000003F
+/* MAC mcast indication */
+#define GROUP_ADDRESS		0x0000010000000000LL
+#define HASH_TABLE_SIZE		64	/* Hash tbl size */
+
+/* Interrupt Mask Register (IMASK) */
+#define MEMAC_IMASK_MGI		0x40000000 /* 1 Magic pkt detect indication */
+#define MEMAC_IMASK_TSECC_ER	0x20000000 /* 2 Timestamp FIFO ECC error evnt */
+#define MEMAC_IMASK_TECC_ER	0x02000000 /* 6 Transmit frame ECC error evnt */
+#define MEMAC_IMASK_RECC_ER	0x01000000 /* 7 Receive frame ECC error evnt */
+
+#define MEMAC_ALL_ERRS_IMASK					\
+		((u32)(MEMAC_IMASK_TSECC_ER	|	\
+		       MEMAC_IMASK_TECC_ER		|	\
+		       MEMAC_IMASK_RECC_ER		|	\
+		       MEMAC_IMASK_MGI))
+
+#define MEMAC_IEVNT_PCS			0x80000000 /* PCS (XG). Link sync (G) */
+#define MEMAC_IEVNT_AN			0x40000000 /* Auto-negotiation */
+#define MEMAC_IEVNT_LT			0x20000000 /* Link Training/New page */
+#define MEMAC_IEVNT_MGI			0x00004000 /* Magic pkt detection */
+#define MEMAC_IEVNT_TS_ECC_ER		0x00002000 /* Timestamp FIFO ECC error*/
+#define MEMAC_IEVNT_RX_FIFO_OVFL	0x00001000 /* Rx FIFO overflow */
+#define MEMAC_IEVNT_TX_FIFO_UNFL	0x00000800 /* Tx FIFO underflow */
+#define MEMAC_IEVNT_TX_FIFO_OVFL	0x00000400 /* Tx FIFO overflow */
+#define MEMAC_IEVNT_TX_ECC_ER		0x00000200 /* Tx frame ECC error */
+#define MEMAC_IEVNT_RX_ECC_ER		0x00000100 /* Rx frame ECC error */
+#define MEMAC_IEVNT_LI_FAULT		0x00000080 /* Link Interruption flt */
+#define MEMAC_IEVNT_RX_EMPTY		0x00000040 /* Rx FIFO empty */
+#define MEMAC_IEVNT_TX_EMPTY		0x00000020 /* Tx FIFO empty */
+#define MEMAC_IEVNT_RX_LOWP		0x00000010 /* Low Power Idle */
+#define MEMAC_IEVNT_PHY_LOS		0x00000004 /* Phy loss of signal */
+#define MEMAC_IEVNT_REM_FAULT		0x00000002 /* Remote fault (XGMII) */
+#define MEMAC_IEVNT_LOC_FAULT		0x00000001 /* Local fault (XGMII) */
+
+#define DEFAULT_PAUSE_QUANTA	0xf000
+#define DEFAULT_FRAME_LENGTH	0x600
+#define DEFAULT_TX_IPG_LENGTH	12
+
+#define CLXY_PAUSE_QUANTA_CLX_PQNT	0x0000FFFF
+#define CLXY_PAUSE_QUANTA_CLY_PQNT	0xFFFF0000
+#define CLXY_PAUSE_THRESH_CLX_QTH	0x0000FFFF
+#define CLXY_PAUSE_THRESH_CLY_QTH	0xFFFF0000
+
+struct mac_addr {
+	/* Lower 32 bits of 48-bit MAC address */
+	u32 mac_addr_l;
+	/* Upper 16 bits of 48-bit MAC address */
+	u32 mac_addr_u;
+};
+
+/* memory map */
+struct memac_regs {
+	u32 res0000[2];			/* General Control and Status */
+	u32 command_config;		/* 0x008 Ctrl and cfg */
+	struct mac_addr mac_addr0;	/* 0x00C-0x010 MAC_ADDR_0...1 */
+	u32 maxfrm;			/* 0x014 Max frame length */
+	u32 res0018[1];
+	u32 rx_fifo_sections;		/* Receive FIFO configuration reg */
+	u32 tx_fifo_sections;		/* Transmit FIFO configuration reg */
+	u32 res0024[2];
+	u32 hashtable_ctrl;		/* 0x02C Hash table control */
+	u32 res0030[4];
+	u32 ievent;			/* 0x040 Interrupt event */
+	u32 tx_ipg_length;		/* 0x044 Transmitter inter-packet-gap */
+	u32 res0048;
+	u32 imask;			/* 0x04C Interrupt mask */
+	u32 res0050;
+	u32 pause_quanta[4];		/* 0x054 Pause quanta */
+	u32 pause_thresh[4];		/* 0x064 Pause quanta threshold */
+	u32 rx_pause_status;		/* 0x074 Receive pause status */
+	u32 res0078[2];
+	struct mac_addr mac_addr[MEMAC_NUM_OF_PADDRS];/* 0x80-0x0B4 mac padr */
+	u32 lpwake_timer;		/* 0x0B8 Low Power Wakeup Timer */
+	u32 sleep_timer;		/* 0x0BC Transmit EEE Low Power Timer */
+	u32 res00c0[8];
+	u32 statn_config;		/* 0x0E0 Statistics configuration */
+	u32 res00e4[7];
+	/* Rx Statistics Counter */
+	u32 reoct_l;
+	u32 reoct_u;
+	u32 roct_l;
+	u32 roct_u;
+	u32 raln_l;
+	u32 raln_u;
+	u32 rxpf_l;
+	u32 rxpf_u;
+	u32 rfrm_l;
+	u32 rfrm_u;
+	u32 rfcs_l;
+	u32 rfcs_u;
+	u32 rvlan_l;
+	u32 rvlan_u;
+	u32 rerr_l;
+	u32 rerr_u;
+	u32 ruca_l;
+	u32 ruca_u;
+	u32 rmca_l;
+	u32 rmca_u;
+	u32 rbca_l;
+	u32 rbca_u;
+	u32 rdrp_l;
+	u32 rdrp_u;
+	u32 rpkt_l;
+	u32 rpkt_u;
+	u32 rund_l;
+	u32 rund_u;
+	u32 r64_l;
+	u32 r64_u;
+	u32 r127_l;
+	u32 r127_u;
+	u32 r255_l;
+	u32 r255_u;
+	u32 r511_l;
+	u32 r511_u;
+	u32 r1023_l;
+	u32 r1023_u;
+	u32 r1518_l;
+	u32 r1518_u;
+	u32 r1519x_l;
+	u32 r1519x_u;
+	u32 rovr_l;
+	u32 rovr_u;
+	u32 rjbr_l;
+	u32 rjbr_u;
+	u32 rfrg_l;
+	u32 rfrg_u;
+	u32 rcnp_l;
+	u32 rcnp_u;
+	u32 rdrntp_l;
+	u32 rdrntp_u;
+	u32 res01d0[12];
+	/* Tx Statistics Counter */
+	u32 teoct_l;
+	u32 teoct_u;
+	u32 toct_l;
+	u32 toct_u;
+	u32 res0210[2];
+	u32 txpf_l;
+	u32 txpf_u;
+	u32 tfrm_l;
+	u32 tfrm_u;
+	u32 tfcs_l;
+	u32 tfcs_u;
+	u32 tvlan_l;
+	u32 tvlan_u;
+	u32 terr_l;
+	u32 terr_u;
+	u32 tuca_l;
+	u32 tuca_u;
+	u32 tmca_l;
+	u32 tmca_u;
+	u32 tbca_l;
+	u32 tbca_u;
+	u32 res0258[2];
+	u32 tpkt_l;
+	u32 tpkt_u;
+	u32 tund_l;
+	u32 tund_u;
+	u32 t64_l;
+	u32 t64_u;
+	u32 t127_l;
+	u32 t127_u;
+	u32 t255_l;
+	u32 t255_u;
+	u32 t511_l;
+	u32 t511_u;
+	u32 t1023_l;
+	u32 t1023_u;
+	u32 t1518_l;
+	u32 t1518_u;
+	u32 t1519x_l;
+	u32 t1519x_u;
+	u32 res02a8[6];
+	u32 tcnp_l;
+	u32 tcnp_u;
+	u32 res02c8[14];
+	/* Line Interface Control */
+	u32 if_mode;		/* 0x300 Interface Mode Control */
+	u32 if_status;		/* 0x304 Interface Status */
+	u32 res0308[14];
+	/* HiGig/2 */
+	u32 hg_config;		/* 0x340 Control and cfg */
+	u32 res0344[3];
+	u32 hg_pause_quanta;	/* 0x350 Pause quanta */
+	u32 res0354[3];
+	u32 hg_pause_thresh;	/* 0x360 Pause quanta threshold */
+	u32 res0364[3];
+	u32 hgrx_pause_status;	/* 0x370 Receive pause status */
+	u32 hg_fifos_status;	/* 0x374 fifos status */
+	u32 rhm;		/* 0x378 rx messages counter */
+	u32 thm;		/* 0x37C tx messages counter */
+};
+
+struct memac_cfg {
+	bool reset_on_init;
+	bool pause_ignore;
+	bool promiscuous_mode_enable;
+	struct fixed_phy_status *fixed_link;
+	u16 max_frame_length;
+	u16 pause_quanta;
+	u32 tx_ipg_length;
+};
+
+struct fman_mac {
+	/* Pointer to MAC memory mapped registers */
+	struct memac_regs __iomem *regs;
+	/* MAC address of device */
+	u64 addr;
+	struct mac_device *dev_id; /* device cookie used by the exception cbs */
+	fman_mac_exception_cb *exception_cb;
+	fman_mac_exception_cb *event_cb;
+	/* Pointer to driver's global address hash table  */
+	struct eth_hash_t *multicast_addr_hash;
+	/* Pointer to driver's individual address hash table  */
+	struct eth_hash_t *unicast_addr_hash;
+	u8 mac_id;
+	u32 exceptions;
+	struct memac_cfg *memac_drv_param;
+	void *fm;
+	struct fman_rev_info fm_rev_info;
+	struct phy *serdes;
+	struct phylink_pcs *sgmii_pcs;
+	struct phylink_pcs *qsgmii_pcs;
+	struct phylink_pcs *xfi_pcs;
+	bool allmulti_enabled;
+	bool rgmii_no_half_duplex;
+};
+
+static void add_addr_in_paddr(struct memac_regs __iomem *regs, const u8 *adr,
+			      u8 paddr_num)
+{
+	u32 tmp0, tmp1;
+
+	tmp0 = (u32)(adr[0] | adr[1] << 8 | adr[2] << 16 | adr[3] << 24);
+	tmp1 = (u32)(adr[4] | adr[5] << 8);
+
+	if (paddr_num == 0) {
+		iowrite32be(tmp0, &regs->mac_addr0.mac_addr_l);
+		iowrite32be(tmp1, &regs->mac_addr0.mac_addr_u);
+	} else {
+		iowrite32be(tmp0, &regs->mac_addr[paddr_num - 1].mac_addr_l);
+		iowrite32be(tmp1, &regs->mac_addr[paddr_num - 1].mac_addr_u);
+	}
+}
+
+static int reset(struct memac_regs __iomem *regs)
+{
+	u32 tmp;
+	int count;
+
+	tmp = ioread32be(&regs->command_config);
+
+	tmp |= CMD_CFG_SW_RESET;
+
+	iowrite32be(tmp, &regs->command_config);
+
+	count = 100;
+	do {
+		udelay(1);
+	} while ((ioread32be(&regs->command_config) & CMD_CFG_SW_RESET) &&
+		 --count);
+
+	if (count == 0)
+		return -EBUSY;
+
+	return 0;
+}
+
+static void set_exception(struct memac_regs __iomem *regs, u32 val,
+			  bool enable)
+{
+	u32 tmp;
+
+	tmp = ioread32be(&regs->imask);
+	if (enable)
+		tmp |= val;
+	else
+		tmp &= ~val;
+
+	iowrite32be(tmp, &regs->imask);
+}
+
+static int init(struct memac_regs __iomem *regs, struct memac_cfg *cfg,
+		u32 exceptions)
+{
+	u32 tmp;
+
+	/* Config */
+	tmp = 0;
+	if (cfg->promiscuous_mode_enable)
+		tmp |= CMD_CFG_PROMIS_EN;
+	if (cfg->pause_ignore)
+		tmp |= CMD_CFG_PAUSE_IGNORE;
+
+	/* Payload length check disable */
+	tmp |= CMD_CFG_NO_LEN_CHK;
+	/* Enable padding of frames in transmit direction */
+	tmp |= CMD_CFG_TX_PAD_EN;
+
+	tmp |= CMD_CFG_CRC_FWD;
+
+	iowrite32be(tmp, &regs->command_config);
+
+	/* Max Frame Length */
+	iowrite32be((u32)cfg->max_frame_length, &regs->maxfrm);
+
+	/* Pause Time */
+	iowrite32be((u32)cfg->pause_quanta, &regs->pause_quanta[0]);
+	iowrite32be((u32)0, &regs->pause_thresh[0]);
+
+	/* clear all pending events and set-up interrupts */
+	iowrite32be(0xffffffff, &regs->ievent);
+	set_exception(regs, exceptions, true);
+
+	return 0;
+}
+
+static void set_dflts(struct memac_cfg *cfg)
+{
+	cfg->reset_on_init = false;
+	cfg->promiscuous_mode_enable = false;
+	cfg->pause_ignore = false;
+	cfg->tx_ipg_length = DEFAULT_TX_IPG_LENGTH;
+	cfg->max_frame_length = DEFAULT_FRAME_LENGTH;
+	cfg->pause_quanta = DEFAULT_PAUSE_QUANTA;
+}
+
+static u32 get_mac_addr_hash_code(u64 eth_addr)
+{
+	u64 mask1, mask2;
+	u32 xor_val = 0;
+	u8 i, j;
+
+	for (i = 0; i < 6; i++) {
+		mask1 = eth_addr & (u64)0x01;
+		eth_addr >>= 1;
+
+		for (j = 0; j < 7; j++) {
+			mask2 = eth_addr & (u64)0x01;
+			mask1 ^= mask2;
+			eth_addr >>= 1;
+		}
+
+		xor_val |= (mask1 << (5 - i));
+	}
+
+	return xor_val;
+}
+
+static int check_init_parameters(struct fman_mac *memac)
+{
+	if (!memac->exception_cb) {
+		pr_err("Uninitialized exception handler\n");
+		return -EINVAL;
+	}
+	if (!memac->event_cb) {
+		pr_warn("Uninitialize event handler\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int get_exception_flag(enum fman_mac_exceptions exception)
+{
+	u32 bit_mask;
+
+	switch (exception) {
+	case FM_MAC_EX_10G_TX_ECC_ER:
+		bit_mask = MEMAC_IMASK_TECC_ER;
+		break;
+	case FM_MAC_EX_10G_RX_ECC_ER:
+		bit_mask = MEMAC_IMASK_RECC_ER;
+		break;
+	case FM_MAC_EX_TS_FIFO_ECC_ERR:
+		bit_mask = MEMAC_IMASK_TSECC_ER;
+		break;
+	case FM_MAC_EX_MAGIC_PACKET_INDICATION:
+		bit_mask = MEMAC_IMASK_MGI;
+		break;
+	default:
+		bit_mask = 0;
+		break;
+	}
+
+	return bit_mask;
+}
+
+static void memac_err_exception(void *handle)
+{
+	struct fman_mac *memac = (struct fman_mac *)handle;
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 event, imask;
+
+	event = ioread32be(&regs->ievent);
+	imask = ioread32be(&regs->imask);
+
+	/* Imask include both error and notification/event bits.
+	 * Leaving only error bits enabled by imask.
+	 * The imask error bits are shifted by 16 bits offset from
+	 * their corresponding location in the ievent - hence the >> 16
+	 */
+	event &= ((imask & MEMAC_ALL_ERRS_IMASK) >> 16);
+
+	iowrite32be(event, &regs->ievent);
+
+	if (event & MEMAC_IEVNT_TS_ECC_ER)
+		memac->exception_cb(memac->dev_id, FM_MAC_EX_TS_FIFO_ECC_ERR);
+	if (event & MEMAC_IEVNT_TX_ECC_ER)
+		memac->exception_cb(memac->dev_id, FM_MAC_EX_10G_TX_ECC_ER);
+	if (event & MEMAC_IEVNT_RX_ECC_ER)
+		memac->exception_cb(memac->dev_id, FM_MAC_EX_10G_RX_ECC_ER);
+}
+
+static void memac_exception(void *handle)
+{
+	struct fman_mac *memac = (struct fman_mac *)handle;
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 event, imask;
+
+	event = ioread32be(&regs->ievent);
+	imask = ioread32be(&regs->imask);
+
+	/* Imask include both error and notification/event bits.
+	 * Leaving only error bits enabled by imask.
+	 * The imask error bits are shifted by 16 bits offset from
+	 * their corresponding location in the ievent - hence the >> 16
+	 */
+	event &= ((imask & MEMAC_ALL_ERRS_IMASK) >> 16);
+
+	iowrite32be(event, &regs->ievent);
+
+	if (event & MEMAC_IEVNT_MGI)
+		memac->exception_cb(memac->dev_id,
+				    FM_MAC_EX_MAGIC_PACKET_INDICATION);
+}
+
+static void free_init_resources(struct fman_mac *memac)
+{
+	fman_unregister_intr(memac->fm, FMAN_MOD_MAC, memac->mac_id,
+			     FMAN_INTR_TYPE_ERR);
+
+	fman_unregister_intr(memac->fm, FMAN_MOD_MAC, memac->mac_id,
+			     FMAN_INTR_TYPE_NORMAL);
+
+	/* release the driver's group hash table */
+	free_hash_table(memac->multicast_addr_hash);
+	memac->multicast_addr_hash = NULL;
+
+	/* release the driver's individual hash table */
+	free_hash_table(memac->unicast_addr_hash);
+	memac->unicast_addr_hash = NULL;
+}
+
+static int memac_enable(struct fman_mac *memac)
+{
+	int ret;
+
+	ret = phy_init(memac->serdes);
+	if (ret) {
+		dev_err(memac->dev_id->dev,
+			"could not initialize serdes: %pe\n", ERR_PTR(ret));
+		return ret;
+	}
+
+	ret = phy_power_on(memac->serdes);
+	if (ret) {
+		dev_err(memac->dev_id->dev,
+			"could not power on serdes: %pe\n", ERR_PTR(ret));
+		phy_exit(memac->serdes);
+	}
+
+	return ret;
+}
+
+static void memac_disable(struct fman_mac *memac)
+{
+	phy_power_off(memac->serdes);
+	phy_exit(memac->serdes);
+}
+
+static int memac_set_promiscuous(struct fman_mac *memac, bool new_val)
+{
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 tmp;
+
+	tmp = ioread32be(&regs->command_config);
+	if (new_val)
+		tmp |= CMD_CFG_PROMIS_EN;
+	else
+		tmp &= ~CMD_CFG_PROMIS_EN;
+
+	iowrite32be(tmp, &regs->command_config);
+
+	return 0;
+}
+
+static int memac_set_tx_pause_frames(struct fman_mac *memac, u8 priority,
+				     u16 pause_time, u16 thresh_time)
+{
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 tmp;
+
+	tmp = ioread32be(&regs->tx_fifo_sections);
+
+	GET_TX_EMPTY_DEFAULT_VALUE(tmp);
+	iowrite32be(tmp, &regs->tx_fifo_sections);
+
+	tmp = ioread32be(&regs->command_config);
+	tmp &= ~CMD_CFG_PFC_MODE;
+
+	iowrite32be(tmp, &regs->command_config);
+
+	tmp = ioread32be(&regs->pause_quanta[priority / 2]);
+	if (priority % 2)
+		tmp &= CLXY_PAUSE_QUANTA_CLX_PQNT;
+	else
+		tmp &= CLXY_PAUSE_QUANTA_CLY_PQNT;
+	tmp |= ((u32)pause_time << (16 * (priority % 2)));
+	iowrite32be(tmp, &regs->pause_quanta[priority / 2]);
+
+	tmp = ioread32be(&regs->pause_thresh[priority / 2]);
+	if (priority % 2)
+		tmp &= CLXY_PAUSE_THRESH_CLX_QTH;
+	else
+		tmp &= CLXY_PAUSE_THRESH_CLY_QTH;
+	tmp |= ((u32)thresh_time << (16 * (priority % 2)));
+	iowrite32be(tmp, &regs->pause_thresh[priority / 2]);
+
+	return 0;
+}
+
+static int memac_accept_rx_pause_frames(struct fman_mac *memac, bool en)
+{
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 tmp;
+
+	tmp = ioread32be(&regs->command_config);
+	if (en)
+		tmp &= ~CMD_CFG_PAUSE_IGNORE;
+	else
+		tmp |= CMD_CFG_PAUSE_IGNORE;
+
+	iowrite32be(tmp, &regs->command_config);
+
+	return 0;
+}
+
+static void memac_validate(struct phylink_config *config,
+			   unsigned long *supported,
+			   struct phylink_link_state *state)
+{
+	struct fman_mac *memac = fman_config_to_mac(config)->fman_mac;
+	unsigned long caps = config->mac_capabilities;
+
+	if (phy_interface_mode_is_rgmii(state->interface) &&
+	    memac->rgmii_no_half_duplex)
+		caps &= ~(MAC_10HD | MAC_100HD);
+
+	phylink_validate_mask_caps(supported, state, caps);
+}
+
+/**
+ * memac_if_mode() - Convert an interface mode into an IF_MODE config
+ * @interface: A phy interface mode
+ *
+ * Return: A configuration word, suitable for programming into the lower bits
+ *         of %IF_MODE.
+ */
+static u32 memac_if_mode(phy_interface_t interface)
+{
+	switch (interface) {
+	case PHY_INTERFACE_MODE_MII:
+		return IF_MODE_MII;
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		return IF_MODE_GMII | IF_MODE_RGMII;
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_QSGMII:
+		return IF_MODE_GMII;
+	case PHY_INTERFACE_MODE_10GBASER:
+		return IF_MODE_10G;
+	default:
+		WARN_ON_ONCE(1);
+		return 0;
+	}
+}
+
+static struct phylink_pcs *memac_select_pcs(struct phylink_config *config,
+					    phy_interface_t iface)
+{
+	struct fman_mac *memac = fman_config_to_mac(config)->fman_mac;
+
+	switch (iface) {
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+		return memac->sgmii_pcs;
+	case PHY_INTERFACE_MODE_QSGMII:
+		return memac->qsgmii_pcs;
+	case PHY_INTERFACE_MODE_10GBASER:
+		return memac->xfi_pcs;
+	default:
+		return NULL;
+	}
+}
+
+static int memac_prepare(struct phylink_config *config, unsigned int mode,
+			 phy_interface_t iface)
+{
+	struct fman_mac *memac = fman_config_to_mac(config)->fman_mac;
+
+	switch (iface) {
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_QSGMII:
+	case PHY_INTERFACE_MODE_10GBASER:
+		return phy_set_mode_ext(memac->serdes, PHY_MODE_ETHERNET,
+					iface);
+	default:
+		return 0;
+	}
+}
+
+static void memac_mac_config(struct phylink_config *config, unsigned int mode,
+			     const struct phylink_link_state *state)
+{
+	struct mac_device *mac_dev = fman_config_to_mac(config);
+	struct memac_regs __iomem *regs = mac_dev->fman_mac->regs;
+	u32 tmp = ioread32be(&regs->if_mode);
+
+	tmp &= ~(IF_MODE_MASK | IF_MODE_RGMII);
+	tmp |= memac_if_mode(state->interface);
+	if (phylink_autoneg_inband(mode))
+		tmp |= IF_MODE_RGMII_AUTO;
+	iowrite32be(tmp, &regs->if_mode);
+}
+
+static void memac_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 mac_device *mac_dev = fman_config_to_mac(config);
+	struct fman_mac *memac = mac_dev->fman_mac;
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 tmp = memac_if_mode(interface);
+	u16 pause_time = tx_pause ? FSL_FM_PAUSE_TIME_ENABLE :
+			 FSL_FM_PAUSE_TIME_DISABLE;
+
+	memac_set_tx_pause_frames(memac, 0, pause_time, 0);
+	memac_accept_rx_pause_frames(memac, rx_pause);
+
+	if (duplex == DUPLEX_HALF)
+		tmp |= IF_MODE_HD;
+
+	switch (speed) {
+	case SPEED_1000:
+		tmp |= IF_MODE_RGMII_1000;
+		break;
+	case SPEED_100:
+		tmp |= IF_MODE_RGMII_100;
+		break;
+	case SPEED_10:
+		tmp |= IF_MODE_RGMII_10;
+		break;
+	}
+	iowrite32be(tmp, &regs->if_mode);
+
+	/* TODO: EEE? */
+
+	if (speed == SPEED_10000) {
+		if (memac->fm_rev_info.major == 6 &&
+		    memac->fm_rev_info.minor == 4)
+			tmp = TX_FIFO_SECTIONS_TX_AVAIL_SLOW_10G;
+		else
+			tmp = TX_FIFO_SECTIONS_TX_AVAIL_10G;
+		tmp |= TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_10G;
+	} else {
+		tmp = TX_FIFO_SECTIONS_TX_AVAIL_1G |
+		      TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_1G;
+	}
+	iowrite32be(tmp, &regs->tx_fifo_sections);
+
+	mac_dev->update_speed(mac_dev, speed);
+
+	tmp = ioread32be(&regs->command_config);
+	tmp |= CMD_CFG_RX_EN | CMD_CFG_TX_EN;
+	iowrite32be(tmp, &regs->command_config);
+}
+
+static void memac_link_down(struct phylink_config *config, unsigned int mode,
+			    phy_interface_t interface)
+{
+	struct fman_mac *memac = fman_config_to_mac(config)->fman_mac;
+	struct memac_regs __iomem *regs = memac->regs;
+	u32 tmp;
+
+	/* TODO: graceful */
+	tmp = ioread32be(&regs->command_config);
+	tmp &= ~(CMD_CFG_RX_EN | CMD_CFG_TX_EN);
+	iowrite32be(tmp, &regs->command_config);
+}
+
+static const struct phylink_mac_ops memac_mac_ops = {
+	.validate = memac_validate,
+	.mac_select_pcs = memac_select_pcs,
+	.mac_prepare = memac_prepare,
+	.mac_config = memac_mac_config,
+	.mac_link_up = memac_link_up,
+	.mac_link_down = memac_link_down,
+};
+
+static int memac_modify_mac_address(struct fman_mac *memac,
+				    const enet_addr_t *enet_addr)
+{
+	add_addr_in_paddr(memac->regs, (const u8 *)(*enet_addr), 0);
+
+	return 0;
+}
+
+static int memac_add_hash_mac_address(struct fman_mac *memac,
+				      enet_addr_t *eth_addr)
+{
+	struct memac_regs __iomem *regs = memac->regs;
+	struct eth_hash_entry *hash_entry;
+	u32 hash;
+	u64 addr;
+
+	addr = ENET_ADDR_TO_UINT64(*eth_addr);
+
+	if (!(addr & GROUP_ADDRESS)) {
+		/* Unicast addresses not supported in hash */
+		pr_err("Unicast Address\n");
+		return -EINVAL;
+	}
+	hash = get_mac_addr_hash_code(addr) & HASH_CTRL_ADDR_MASK;
+
+	/* Create element to be added to the driver hash table */
+	hash_entry = kmalloc(sizeof(*hash_entry), GFP_ATOMIC);
+	if (!hash_entry)
+		return -ENOMEM;
+	hash_entry->addr = addr;
+	INIT_LIST_HEAD(&hash_entry->node);
+
+	list_add_tail(&hash_entry->node,
+		      &memac->multicast_addr_hash->lsts[hash]);
+	iowrite32be(hash | HASH_CTRL_MCAST_EN, &regs->hashtable_ctrl);
+
+	return 0;
+}
+
+static int memac_set_allmulti(struct fman_mac *memac, bool enable)
+{
+	u32 entry;
+	struct memac_regs __iomem *regs = memac->regs;
+
+	if (enable) {
+		for (entry = 0; entry < HASH_TABLE_SIZE; entry++)
+			iowrite32be(entry | HASH_CTRL_MCAST_EN,
+				    &regs->hashtable_ctrl);
+	} else {
+		for (entry = 0; entry < HASH_TABLE_SIZE; entry++)
+			iowrite32be(entry & ~HASH_CTRL_MCAST_EN,
+				    &regs->hashtable_ctrl);
+	}
+
+	memac->allmulti_enabled = enable;
+
+	return 0;
+}
+
+static int memac_set_tstamp(struct fman_mac *memac, bool enable)
+{
+	return 0; /* Always enabled. */
+}
+
+static int memac_del_hash_mac_address(struct fman_mac *memac,
+				      enet_addr_t *eth_addr)
+{
+	struct memac_regs __iomem *regs = memac->regs;
+	struct eth_hash_entry *hash_entry = NULL;
+	struct list_head *pos;
+	u32 hash;
+	u64 addr;
+
+	addr = ENET_ADDR_TO_UINT64(*eth_addr);
+
+	hash = get_mac_addr_hash_code(addr) & HASH_CTRL_ADDR_MASK;
+
+	list_for_each(pos, &memac->multicast_addr_hash->lsts[hash]) {
+		hash_entry = ETH_HASH_ENTRY_OBJ(pos);
+		if (hash_entry && hash_entry->addr == addr) {
+			list_del_init(&hash_entry->node);
+			kfree(hash_entry);
+			break;
+		}
+	}
+
+	if (!memac->allmulti_enabled) {
+		if (list_empty(&memac->multicast_addr_hash->lsts[hash]))
+			iowrite32be(hash & ~HASH_CTRL_MCAST_EN,
+				    &regs->hashtable_ctrl);
+	}
+
+	return 0;
+}
+
+static int memac_set_exception(struct fman_mac *memac,
+			       enum fman_mac_exceptions exception, bool enable)
+{
+	u32 bit_mask = 0;
+
+	bit_mask = get_exception_flag(exception);
+	if (bit_mask) {
+		if (enable)
+			memac->exceptions |= bit_mask;
+		else
+			memac->exceptions &= ~bit_mask;
+	} else {
+		pr_err("Undefined exception\n");
+		return -EINVAL;
+	}
+	set_exception(memac->regs, bit_mask, enable);
+
+	return 0;
+}
+
+static int memac_init(struct fman_mac *memac)
+{
+	struct memac_cfg *memac_drv_param;
+	enet_addr_t eth_addr;
+	int err;
+	u32 reg32 = 0;
+
+	err = check_init_parameters(memac);
+	if (err)
+		return err;
+
+	memac_drv_param = memac->memac_drv_param;
+
+	/* First, reset the MAC if desired. */
+	if (memac_drv_param->reset_on_init) {
+		err = reset(memac->regs);
+		if (err) {
+			pr_err("mEMAC reset failed\n");
+			return err;
+		}
+	}
+
+	/* MAC Address */
+	if (memac->addr != 0) {
+		MAKE_ENET_ADDR_FROM_UINT64(memac->addr, eth_addr);
+		add_addr_in_paddr(memac->regs, (const u8 *)eth_addr, 0);
+	}
+
+	init(memac->regs, memac->memac_drv_param, memac->exceptions);
+
+	/* FM_RX_FIFO_CORRUPT_ERRATA_10GMAC_A006320 errata workaround
+	 * Exists only in FMan 6.0 and 6.3.
+	 */
+	if ((memac->fm_rev_info.major == 6) &&
+	    ((memac->fm_rev_info.minor == 0) ||
+	    (memac->fm_rev_info.minor == 3))) {
+		/* MAC strips CRC from received frames - this workaround
+		 * should decrease the likelihood of bug appearance
+		 */
+		reg32 = ioread32be(&memac->regs->command_config);
+		reg32 &= ~CMD_CFG_CRC_FWD;
+		iowrite32be(reg32, &memac->regs->command_config);
+	}
+
+	/* Max Frame Length */
+	err = fman_set_mac_max_frame(memac->fm, memac->mac_id,
+				     memac_drv_param->max_frame_length);
+	if (err) {
+		pr_err("settings Mac max frame length is FAILED\n");
+		return err;
+	}
+
+	memac->multicast_addr_hash = alloc_hash_table(HASH_TABLE_SIZE);
+	if (!memac->multicast_addr_hash) {
+		free_init_resources(memac);
+		pr_err("allocation hash table is FAILED\n");
+		return -ENOMEM;
+	}
+
+	memac->unicast_addr_hash = alloc_hash_table(HASH_TABLE_SIZE);
+	if (!memac->unicast_addr_hash) {
+		free_init_resources(memac);
+		pr_err("allocation hash table is FAILED\n");
+		return -ENOMEM;
+	}
+
+	fman_register_intr(memac->fm, FMAN_MOD_MAC, memac->mac_id,
+			   FMAN_INTR_TYPE_ERR, memac_err_exception, memac);
+
+	fman_register_intr(memac->fm, FMAN_MOD_MAC, memac->mac_id,
+			   FMAN_INTR_TYPE_NORMAL, memac_exception, memac);
+
+	return 0;
+}
+
+static void pcs_put(struct phylink_pcs *pcs)
+{
+	struct mdio_device *mdiodev;
+
+	if (IS_ERR_OR_NULL(pcs))
+		return;
+
+	mdiodev = lynx_get_mdio_device(pcs);
+	lynx_pcs_destroy(pcs);
+	mdio_device_free(mdiodev);
+}
+
+static int memac_free(struct fman_mac *memac)
+{
+	free_init_resources(memac);
+
+	pcs_put(memac->sgmii_pcs);
+	pcs_put(memac->qsgmii_pcs);
+	pcs_put(memac->xfi_pcs);
+	kfree(memac->memac_drv_param);
+	kfree(memac);
+
+	return 0;
+}
+
+static struct fman_mac *memac_config(struct mac_device *mac_dev,
+				     struct fman_mac_params *params)
+{
+	struct fman_mac *memac;
+	struct memac_cfg *memac_drv_param;
+
+	/* allocate memory for the m_emac data structure */
+	memac = kzalloc(sizeof(*memac), GFP_KERNEL);
+	if (!memac)
+		return NULL;
+
+	/* allocate memory for the m_emac driver parameters data structure */
+	memac_drv_param = kzalloc(sizeof(*memac_drv_param), GFP_KERNEL);
+	if (!memac_drv_param) {
+		memac_free(memac);
+		return NULL;
+	}
+
+	/* Plant parameter structure pointer */
+	memac->memac_drv_param = memac_drv_param;
+
+	set_dflts(memac_drv_param);
+
+	memac->addr = ENET_ADDR_TO_UINT64(mac_dev->addr);
+
+	memac->regs = mac_dev->vaddr;
+	memac->mac_id = params->mac_id;
+	memac->exceptions = (MEMAC_IMASK_TSECC_ER | MEMAC_IMASK_TECC_ER |
+			     MEMAC_IMASK_RECC_ER | MEMAC_IMASK_MGI);
+	memac->exception_cb = params->exception_cb;
+	memac->event_cb = params->event_cb;
+	memac->dev_id = mac_dev;
+	memac->fm = params->fm;
+
+	/* Save FMan revision */
+	fman_get_revision(memac->fm, &memac->fm_rev_info);
+
+	return memac;
+}
+
+static struct phylink_pcs *memac_pcs_create(struct device_node *mac_node,
+					    int index)
+{
+	struct device_node *node;
+	struct mdio_device *mdiodev = NULL;
+	struct phylink_pcs *pcs;
+
+	node = of_parse_phandle(mac_node, "pcsphy-handle", index);
+	if (node && of_device_is_available(node))
+		mdiodev = of_mdio_find_device(node);
+	of_node_put(node);
+
+	if (!mdiodev)
+		return ERR_PTR(-EPROBE_DEFER);
+
+	pcs = lynx_pcs_create(mdiodev);
+	if (!pcs)
+		mdio_device_free(mdiodev);
+
+	return pcs;
+}
+
+static bool memac_supports(struct mac_device *mac_dev, phy_interface_t iface)
+{
+	/* If there's no serdes device, assume that it's been configured for
+	 * whatever the default interface mode is.
+	 */
+	if (!mac_dev->fman_mac->serdes)
+		return mac_dev->phy_if == iface;
+	/* Otherwise, ask the serdes */
+	return !phy_validate(mac_dev->fman_mac->serdes, PHY_MODE_ETHERNET,
+			     iface, NULL);
+}
+
+int memac_initialization(struct mac_device *mac_dev,
+			 struct device_node *mac_node,
+			 struct fman_mac_params *params)
+{
+	int			 err;
+	struct device_node      *fixed;
+	struct phylink_pcs	*pcs;
+	struct fman_mac		*memac;
+	unsigned long		 capabilities;
+	unsigned long		*supported;
+
+	mac_dev->phylink_ops		= &memac_mac_ops;
+	mac_dev->set_promisc		= memac_set_promiscuous;
+	mac_dev->change_addr		= memac_modify_mac_address;
+	mac_dev->add_hash_mac_addr	= memac_add_hash_mac_address;
+	mac_dev->remove_hash_mac_addr	= memac_del_hash_mac_address;
+	mac_dev->set_exception		= memac_set_exception;
+	mac_dev->set_allmulti		= memac_set_allmulti;
+	mac_dev->set_tstamp		= memac_set_tstamp;
+	mac_dev->set_multi		= fman_set_multi;
+	mac_dev->enable			= memac_enable;
+	mac_dev->disable		= memac_disable;
+
+	mac_dev->fman_mac = memac_config(mac_dev, params);
+	if (!mac_dev->fman_mac)
+		return -EINVAL;
+
+	memac = mac_dev->fman_mac;
+	memac->memac_drv_param->max_frame_length = fman_get_max_frm();
+	memac->memac_drv_param->reset_on_init = true;
+
+	err = of_property_match_string(mac_node, "pcs-handle-names", "xfi");
+	if (err >= 0) {
+		memac->xfi_pcs = memac_pcs_create(mac_node, err);
+		if (IS_ERR(memac->xfi_pcs)) {
+			err = PTR_ERR(memac->xfi_pcs);
+			dev_err_probe(mac_dev->dev, err, "missing xfi pcs\n");
+			goto _return_fm_mac_free;
+		}
+	} else if (err != -EINVAL && err != -ENODATA) {
+		goto _return_fm_mac_free;
+	}
+
+	err = of_property_match_string(mac_node, "pcs-handle-names", "qsgmii");
+	if (err >= 0) {
+		memac->qsgmii_pcs = memac_pcs_create(mac_node, err);
+		if (IS_ERR(memac->qsgmii_pcs)) {
+			err = PTR_ERR(memac->qsgmii_pcs);
+			dev_err_probe(mac_dev->dev, err,
+				      "missing qsgmii pcs\n");
+			goto _return_fm_mac_free;
+		}
+	} else if (err != -EINVAL && err != -ENODATA) {
+		goto _return_fm_mac_free;
+	}
+
+	/* For compatibility, if pcs-handle-names is missing, we assume this
+	 * phy is the first one in pcsphy-handle
+	 */
+	err = of_property_match_string(mac_node, "pcs-handle-names", "sgmii");
+	if (err == -EINVAL || err == -ENODATA)
+		pcs = memac_pcs_create(mac_node, 0);
+	else if (err < 0)
+		goto _return_fm_mac_free;
+	else
+		pcs = memac_pcs_create(mac_node, err);
+
+	if (IS_ERR(pcs)) {
+		err = PTR_ERR(pcs);
+		dev_err_probe(mac_dev->dev, err, "missing pcs\n");
+		goto _return_fm_mac_free;
+	}
+
+	/* If err is set here, it means that pcs-handle-names was missing above
+	 * (and therefore that xfi_pcs cannot be set). If we are defaulting to
+	 * XGMII, assume this is for XFI. Otherwise, assume it is for SGMII.
+	 */
+	if (err && mac_dev->phy_if == PHY_INTERFACE_MODE_XGMII)
+		memac->xfi_pcs = pcs;
+	else
+		memac->sgmii_pcs = pcs;
+
+	memac->serdes = devm_of_phy_get(mac_dev->dev, mac_node, "serdes");
+	err = PTR_ERR(memac->serdes);
+	if (err == -ENODEV || err == -ENOSYS) {
+		dev_dbg(mac_dev->dev, "could not get (optional) serdes\n");
+		memac->serdes = NULL;
+	} else if (IS_ERR(memac->serdes)) {
+		dev_err_probe(mac_dev->dev, err, "could not get serdes\n");
+		goto _return_fm_mac_free;
+	}
+
+	/* The internal connection to the serdes is XGMII, but this isn't
+	 * really correct for the phy mode (which is the external connection).
+	 * However, this is how all older device trees say that they want
+	 * 10GBASE-R (aka XFI), so just convert it for them.
+	 */
+	if (mac_dev->phy_if == PHY_INTERFACE_MODE_XGMII)
+		mac_dev->phy_if = PHY_INTERFACE_MODE_10GBASER;
+
+	/* TODO: The following interface modes are supported by (some) hardware
+	 * but not by this driver:
+	 * - 1000BASE-KX
+	 * - 10GBASE-KR
+	 * - XAUI/HiGig
+	 */
+	supported = mac_dev->phylink_config.supported_interfaces;
+
+	/* Note that half duplex is only supported on 10/100M interfaces. */
+
+	if (memac->sgmii_pcs &&
+	    (memac_supports(mac_dev, PHY_INTERFACE_MODE_SGMII) ||
+	     memac_supports(mac_dev, PHY_INTERFACE_MODE_1000BASEX))) {
+		__set_bit(PHY_INTERFACE_MODE_SGMII, supported);
+		__set_bit(PHY_INTERFACE_MODE_1000BASEX, supported);
+	}
+
+	if (memac->sgmii_pcs &&
+	    memac_supports(mac_dev, PHY_INTERFACE_MODE_2500BASEX))
+		__set_bit(PHY_INTERFACE_MODE_2500BASEX, supported);
+
+	if (memac->qsgmii_pcs &&
+	    memac_supports(mac_dev, PHY_INTERFACE_MODE_QSGMII))
+		__set_bit(PHY_INTERFACE_MODE_QSGMII, supported);
+	else if (mac_dev->phy_if == PHY_INTERFACE_MODE_QSGMII)
+		dev_warn(mac_dev->dev, "no QSGMII pcs specified\n");
+
+	if (memac->xfi_pcs &&
+	    memac_supports(mac_dev, PHY_INTERFACE_MODE_10GBASER)) {
+		__set_bit(PHY_INTERFACE_MODE_10GBASER, supported);
+	} else {
+		/* From what I can tell, no 10g macs support RGMII. */
+		phy_interface_set_rgmii(supported);
+		__set_bit(PHY_INTERFACE_MODE_MII, supported);
+	}
+
+	capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE | MAC_10 | MAC_100;
+	capabilities |= MAC_1000FD | MAC_2500FD | MAC_10000FD;
+
+	/* These SoCs don't support half duplex at all; there's no different
+	 * FMan version or compatible, so we just have to check the machine
+	 * compatible instead
+	 */
+	if (of_machine_is_compatible("fsl,ls1043a") ||
+	    of_machine_is_compatible("fsl,ls1046a") ||
+	    of_machine_is_compatible("fsl,B4QDS"))
+		capabilities &= ~(MAC_10HD | MAC_100HD);
+
+	mac_dev->phylink_config.mac_capabilities = capabilities;
+
+	/* The T2080 and T4240 don't support half duplex RGMII. There is no
+	 * other way to identify these SoCs, so just use the machine
+	 * compatible.
+	 */
+	if (of_machine_is_compatible("fsl,T2080QDS") ||
+	    of_machine_is_compatible("fsl,T2080RDB") ||
+	    of_machine_is_compatible("fsl,T2081QDS") ||
+	    of_machine_is_compatible("fsl,T4240QDS") ||
+	    of_machine_is_compatible("fsl,T4240RDB"))
+		memac->rgmii_no_half_duplex = true;
+
+	/* Most boards should use MLO_AN_INBAND, but existing boards don't have
+	 * a managed property. Default to MLO_AN_INBAND if nothing else is
+	 * specified. We need to be careful and not enable this if we have a
+	 * fixed link or if we are using MII or RGMII, since those
+	 * configurations modes don't use in-band autonegotiation.
+	 */
+	fixed = of_get_child_by_name(mac_node, "fixed-link");
+	if (!fixed && !of_property_read_bool(mac_node, "fixed-link") &&
+	    !of_property_read_bool(mac_node, "managed") &&
+	    mac_dev->phy_if != PHY_INTERFACE_MODE_MII &&
+	    !phy_interface_mode_is_rgmii(mac_dev->phy_if))
+		mac_dev->phylink_config.ovr_an_inband = true;
+	of_node_put(fixed);
+
+	err = memac_init(mac_dev->fman_mac);
+	if (err < 0)
+		goto _return_fm_mac_free;
+
+	dev_info(mac_dev->dev, "FMan MEMAC\n");
+
+	return 0;
+
+_return_fm_mac_free:
+	memac_free(mac_dev->fman_mac);
+	return err;
+}