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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/actions/owl-emac.h
downloadlinux-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/actions/owl-emac.h')
-rw-r--r--drivers/net/ethernet/actions/owl-emac.h280
1 files changed, 280 insertions, 0 deletions
diff --git a/drivers/net/ethernet/actions/owl-emac.h b/drivers/net/ethernet/actions/owl-emac.h
new file mode 100644
index 000000000..9eb0d1a30
--- /dev/null
+++ b/drivers/net/ethernet/actions/owl-emac.h
@@ -0,0 +1,280 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Actions Semi Owl SoCs Ethernet MAC driver
+ *
+ * Copyright (c) 2012 Actions Semi Inc.
+ * Copyright (c) 2021 Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
+ */
+
+#ifndef __OWL_EMAC_H__
+#define __OWL_EMAC_H__
+
+#define OWL_EMAC_DRVNAME "owl-emac"
+
+#define OWL_EMAC_POLL_DELAY_USEC 5
+#define OWL_EMAC_MDIO_POLL_TIMEOUT_USEC 1000
+#define OWL_EMAC_RESET_POLL_TIMEOUT_USEC 2000
+#define OWL_EMAC_TX_TIMEOUT (2 * HZ)
+
+#define OWL_EMAC_MTU_MIN ETH_MIN_MTU
+#define OWL_EMAC_MTU_MAX ETH_DATA_LEN
+#define OWL_EMAC_RX_FRAME_MAX_LEN (ETH_FRAME_LEN + ETH_FCS_LEN)
+#define OWL_EMAC_SKB_ALIGN 4
+#define OWL_EMAC_SKB_RESERVE 18
+
+#define OWL_EMAC_MAX_MULTICAST_ADDRS 14
+#define OWL_EMAC_SETUP_FRAME_LEN 192
+
+#define OWL_EMAC_RX_RING_SIZE 64
+#define OWL_EMAC_TX_RING_SIZE 32
+
+/* Bus mode register */
+#define OWL_EMAC_REG_MAC_CSR0 0x0000
+#define OWL_EMAC_BIT_MAC_CSR0_SWR BIT(0) /* Software reset */
+
+/* Transmit/receive poll demand registers */
+#define OWL_EMAC_REG_MAC_CSR1 0x0008
+#define OWL_EMAC_VAL_MAC_CSR1_TPD 0x01
+#define OWL_EMAC_REG_MAC_CSR2 0x0010
+#define OWL_EMAC_VAL_MAC_CSR2_RPD 0x01
+
+/* Receive/transmit descriptor list base address registers */
+#define OWL_EMAC_REG_MAC_CSR3 0x0018
+#define OWL_EMAC_REG_MAC_CSR4 0x0020
+
+/* Status register */
+#define OWL_EMAC_REG_MAC_CSR5 0x0028
+#define OWL_EMAC_MSK_MAC_CSR5_TS GENMASK(22, 20) /* Transmit process state */
+#define OWL_EMAC_OFF_MAC_CSR5_TS 20
+#define OWL_EMAC_VAL_MAC_CSR5_TS_DATA 0x03 /* Transferring data HOST -> FIFO */
+#define OWL_EMAC_VAL_MAC_CSR5_TS_CDES 0x07 /* Closing transmit descriptor */
+#define OWL_EMAC_MSK_MAC_CSR5_RS GENMASK(19, 17) /* Receive process state */
+#define OWL_EMAC_OFF_MAC_CSR5_RS 17
+#define OWL_EMAC_VAL_MAC_CSR5_RS_FDES 0x01 /* Fetching receive descriptor */
+#define OWL_EMAC_VAL_MAC_CSR5_RS_CDES 0x05 /* Closing receive descriptor */
+#define OWL_EMAC_VAL_MAC_CSR5_RS_DATA 0x07 /* Transferring data FIFO -> HOST */
+#define OWL_EMAC_BIT_MAC_CSR5_NIS BIT(16) /* Normal interrupt summary */
+#define OWL_EMAC_BIT_MAC_CSR5_AIS BIT(15) /* Abnormal interrupt summary */
+#define OWL_EMAC_BIT_MAC_CSR5_ERI BIT(14) /* Early receive interrupt */
+#define OWL_EMAC_BIT_MAC_CSR5_GTE BIT(11) /* General-purpose timer expiration */
+#define OWL_EMAC_BIT_MAC_CSR5_ETI BIT(10) /* Early transmit interrupt */
+#define OWL_EMAC_BIT_MAC_CSR5_RPS BIT(8) /* Receive process stopped */
+#define OWL_EMAC_BIT_MAC_CSR5_RU BIT(7) /* Receive buffer unavailable */
+#define OWL_EMAC_BIT_MAC_CSR5_RI BIT(6) /* Receive interrupt */
+#define OWL_EMAC_BIT_MAC_CSR5_UNF BIT(5) /* Transmit underflow */
+#define OWL_EMAC_BIT_MAC_CSR5_LCIS BIT(4) /* Link change status */
+#define OWL_EMAC_BIT_MAC_CSR5_LCIQ BIT(3) /* Link change interrupt */
+#define OWL_EMAC_BIT_MAC_CSR5_TU BIT(2) /* Transmit buffer unavailable */
+#define OWL_EMAC_BIT_MAC_CSR5_TPS BIT(1) /* Transmit process stopped */
+#define OWL_EMAC_BIT_MAC_CSR5_TI BIT(0) /* Transmit interrupt */
+
+/* Operation mode register */
+#define OWL_EMAC_REG_MAC_CSR6 0x0030
+#define OWL_EMAC_BIT_MAC_CSR6_RA BIT(30) /* Receive all */
+#define OWL_EMAC_BIT_MAC_CSR6_TTM BIT(22) /* Transmit threshold mode */
+#define OWL_EMAC_BIT_MAC_CSR6_SF BIT(21) /* Store and forward */
+#define OWL_EMAC_MSK_MAC_CSR6_SPEED GENMASK(17, 16) /* Eth speed selection */
+#define OWL_EMAC_OFF_MAC_CSR6_SPEED 16
+#define OWL_EMAC_VAL_MAC_CSR6_SPEED_100M 0x00
+#define OWL_EMAC_VAL_MAC_CSR6_SPEED_10M 0x02
+#define OWL_EMAC_BIT_MAC_CSR6_ST BIT(13) /* Start/stop transmit command */
+#define OWL_EMAC_BIT_MAC_CSR6_LP BIT(10) /* Loopback mode */
+#define OWL_EMAC_BIT_MAC_CSR6_FD BIT(9) /* Full duplex mode */
+#define OWL_EMAC_BIT_MAC_CSR6_PM BIT(7) /* Pass all multicast */
+#define OWL_EMAC_BIT_MAC_CSR6_PR BIT(6) /* Promiscuous mode */
+#define OWL_EMAC_BIT_MAC_CSR6_IF BIT(4) /* Inverse filtering */
+#define OWL_EMAC_BIT_MAC_CSR6_PB BIT(3) /* Pass bad frames */
+#define OWL_EMAC_BIT_MAC_CSR6_HO BIT(2) /* Hash only filtering mode */
+#define OWL_EMAC_BIT_MAC_CSR6_SR BIT(1) /* Start/stop receive command */
+#define OWL_EMAC_BIT_MAC_CSR6_HP BIT(0) /* Hash/perfect receive filtering mode */
+#define OWL_EMAC_MSK_MAC_CSR6_STSR (OWL_EMAC_BIT_MAC_CSR6_ST | \
+ OWL_EMAC_BIT_MAC_CSR6_SR)
+
+/* Interrupt enable register */
+#define OWL_EMAC_REG_MAC_CSR7 0x0038
+#define OWL_EMAC_BIT_MAC_CSR7_NIE BIT(16) /* Normal interrupt summary enable */
+#define OWL_EMAC_BIT_MAC_CSR7_AIE BIT(15) /* Abnormal interrupt summary enable */
+#define OWL_EMAC_BIT_MAC_CSR7_ERE BIT(14) /* Early receive interrupt enable */
+#define OWL_EMAC_BIT_MAC_CSR7_GTE BIT(11) /* General-purpose timer overflow */
+#define OWL_EMAC_BIT_MAC_CSR7_ETE BIT(10) /* Early transmit interrupt enable */
+#define OWL_EMAC_BIT_MAC_CSR7_RSE BIT(8) /* Receive stopped enable */
+#define OWL_EMAC_BIT_MAC_CSR7_RUE BIT(7) /* Receive buffer unavailable enable */
+#define OWL_EMAC_BIT_MAC_CSR7_RIE BIT(6) /* Receive interrupt enable */
+#define OWL_EMAC_BIT_MAC_CSR7_UNE BIT(5) /* Underflow interrupt enable */
+#define OWL_EMAC_BIT_MAC_CSR7_TUE BIT(2) /* Transmit buffer unavailable enable */
+#define OWL_EMAC_BIT_MAC_CSR7_TSE BIT(1) /* Transmit stopped enable */
+#define OWL_EMAC_BIT_MAC_CSR7_TIE BIT(0) /* Transmit interrupt enable */
+#define OWL_EMAC_BIT_MAC_CSR7_ALL_NOT_TUE (OWL_EMAC_BIT_MAC_CSR7_ERE | \
+ OWL_EMAC_BIT_MAC_CSR7_GTE | \
+ OWL_EMAC_BIT_MAC_CSR7_ETE | \
+ OWL_EMAC_BIT_MAC_CSR7_RSE | \
+ OWL_EMAC_BIT_MAC_CSR7_RUE | \
+ OWL_EMAC_BIT_MAC_CSR7_RIE | \
+ OWL_EMAC_BIT_MAC_CSR7_UNE | \
+ OWL_EMAC_BIT_MAC_CSR7_TSE | \
+ OWL_EMAC_BIT_MAC_CSR7_TIE)
+
+/* Missed frames and overflow counter register */
+#define OWL_EMAC_REG_MAC_CSR8 0x0040
+/* MII management and serial ROM register */
+#define OWL_EMAC_REG_MAC_CSR9 0x0048
+
+/* MII serial management register */
+#define OWL_EMAC_REG_MAC_CSR10 0x0050
+#define OWL_EMAC_BIT_MAC_CSR10_SB BIT(31) /* Start transfer or busy */
+#define OWL_EMAC_MSK_MAC_CSR10_CLKDIV GENMASK(30, 28) /* Clock divider */
+#define OWL_EMAC_OFF_MAC_CSR10_CLKDIV 28
+#define OWL_EMAC_VAL_MAC_CSR10_CLKDIV_128 0x04
+#define OWL_EMAC_VAL_MAC_CSR10_OPCODE_WR 0x01 /* Register write command */
+#define OWL_EMAC_OFF_MAC_CSR10_OPCODE 26 /* Operation mode */
+#define OWL_EMAC_VAL_MAC_CSR10_OPCODE_DCG 0x00 /* Disable clock generation */
+#define OWL_EMAC_VAL_MAC_CSR10_OPCODE_WR 0x01 /* Register write command */
+#define OWL_EMAC_VAL_MAC_CSR10_OPCODE_RD 0x02 /* Register read command */
+#define OWL_EMAC_VAL_MAC_CSR10_OPCODE_CDS 0x03 /* Clock divider set */
+#define OWL_EMAC_MSK_MAC_CSR10_PHYADD GENMASK(25, 21) /* Physical layer address */
+#define OWL_EMAC_OFF_MAC_CSR10_PHYADD 21
+#define OWL_EMAC_MSK_MAC_CSR10_REGADD GENMASK(20, 16) /* Register address */
+#define OWL_EMAC_OFF_MAC_CSR10_REGADD 16
+#define OWL_EMAC_MSK_MAC_CSR10_DATA GENMASK(15, 0) /* Register data */
+
+/* General-purpose timer and interrupt mitigation control register */
+#define OWL_EMAC_REG_MAC_CSR11 0x0058
+#define OWL_EMAC_OFF_MAC_CSR11_TT 27 /* Transmit timer */
+#define OWL_EMAC_OFF_MAC_CSR11_NTP 24 /* No. of transmit packets */
+#define OWL_EMAC_OFF_MAC_CSR11_RT 20 /* Receive timer */
+#define OWL_EMAC_OFF_MAC_CSR11_NRP 17 /* No. of receive packets */
+
+/* MAC address low/high registers */
+#define OWL_EMAC_REG_MAC_CSR16 0x0080
+#define OWL_EMAC_REG_MAC_CSR17 0x0088
+
+/* Pause time & cache thresholds register */
+#define OWL_EMAC_REG_MAC_CSR18 0x0090
+#define OWL_EMAC_OFF_MAC_CSR18_CPTL 24 /* Cache pause threshold level */
+#define OWL_EMAC_OFF_MAC_CSR18_CRTL 16 /* Cache restart threshold level */
+#define OWL_EMAC_OFF_MAC_CSR18_PQT 0 /* Flow control pause quanta time */
+
+/* FIFO pause & restart threshold register */
+#define OWL_EMAC_REG_MAC_CSR19 0x0098
+#define OWL_EMAC_OFF_MAC_CSR19_FPTL 16 /* FIFO pause threshold level */
+#define OWL_EMAC_OFF_MAC_CSR19_FRTL 0 /* FIFO restart threshold level */
+
+/* Flow control setup & status register */
+#define OWL_EMAC_REG_MAC_CSR20 0x00A0
+#define OWL_EMAC_BIT_MAC_CSR20_FCE BIT(31) /* Flow Control Enable */
+#define OWL_EMAC_BIT_MAC_CSR20_TUE BIT(30) /* Transmit Un-pause frames Enable */
+#define OWL_EMAC_BIT_MAC_CSR20_TPE BIT(29) /* Transmit Pause frames Enable */
+#define OWL_EMAC_BIT_MAC_CSR20_RPE BIT(28) /* Receive Pause frames Enable */
+#define OWL_EMAC_BIT_MAC_CSR20_BPE BIT(27) /* Back pressure (half-duplex) Enable */
+
+/* MII control register */
+#define OWL_EMAC_REG_MAC_CTRL 0x00B0
+#define OWL_EMAC_BIT_MAC_CTRL_RRSB BIT(8) /* RMII_REFCLK select bit */
+#define OWL_EMAC_OFF_MAC_CTRL_SSDC 4 /* SMII SYNC delay cycle */
+#define OWL_EMAC_BIT_MAC_CTRL_RCPS BIT(1) /* REF_CLK phase select */
+#define OWL_EMAC_BIT_MAC_CTRL_RSIS BIT(0) /* RMII/SMII interface select */
+
+/* Receive descriptor status field */
+#define OWL_EMAC_BIT_RDES0_OWN BIT(31) /* Ownership bit */
+#define OWL_EMAC_BIT_RDES0_FF BIT(30) /* Filtering fail */
+#define OWL_EMAC_MSK_RDES0_FL GENMASK(29, 16) /* Frame length */
+#define OWL_EMAC_OFF_RDES0_FL 16
+#define OWL_EMAC_BIT_RDES0_ES BIT(15) /* Error summary */
+#define OWL_EMAC_BIT_RDES0_DE BIT(14) /* Descriptor error */
+#define OWL_EMAC_BIT_RDES0_RF BIT(11) /* Runt frame */
+#define OWL_EMAC_BIT_RDES0_MF BIT(10) /* Multicast frame */
+#define OWL_EMAC_BIT_RDES0_FS BIT(9) /* First descriptor */
+#define OWL_EMAC_BIT_RDES0_LS BIT(8) /* Last descriptor */
+#define OWL_EMAC_BIT_RDES0_TL BIT(7) /* Frame too long */
+#define OWL_EMAC_BIT_RDES0_CS BIT(6) /* Collision seen */
+#define OWL_EMAC_BIT_RDES0_FT BIT(5) /* Frame type */
+#define OWL_EMAC_BIT_RDES0_RE BIT(3) /* Report on MII error */
+#define OWL_EMAC_BIT_RDES0_DB BIT(2) /* Dribbling bit */
+#define OWL_EMAC_BIT_RDES0_CE BIT(1) /* CRC error */
+#define OWL_EMAC_BIT_RDES0_ZERO BIT(0) /* Legal frame length indicator */
+
+/* Receive descriptor control and count field */
+#define OWL_EMAC_BIT_RDES1_RER BIT(25) /* Receive end of ring */
+#define OWL_EMAC_MSK_RDES1_RBS1 GENMASK(10, 0) /* Buffer 1 size */
+
+/* Transmit descriptor status field */
+#define OWL_EMAC_BIT_TDES0_OWN BIT(31) /* Ownership bit */
+#define OWL_EMAC_BIT_TDES0_ES BIT(15) /* Error summary */
+#define OWL_EMAC_BIT_TDES0_LO BIT(11) /* Loss of carrier */
+#define OWL_EMAC_BIT_TDES0_NC BIT(10) /* No carrier */
+#define OWL_EMAC_BIT_TDES0_LC BIT(9) /* Late collision */
+#define OWL_EMAC_BIT_TDES0_EC BIT(8) /* Excessive collisions */
+#define OWL_EMAC_MSK_TDES0_CC GENMASK(6, 3) /* Collision count */
+#define OWL_EMAC_BIT_TDES0_UF BIT(1) /* Underflow error */
+#define OWL_EMAC_BIT_TDES0_DE BIT(0) /* Deferred */
+
+/* Transmit descriptor control and count field */
+#define OWL_EMAC_BIT_TDES1_IC BIT(31) /* Interrupt on completion */
+#define OWL_EMAC_BIT_TDES1_LS BIT(30) /* Last descriptor */
+#define OWL_EMAC_BIT_TDES1_FS BIT(29) /* First descriptor */
+#define OWL_EMAC_BIT_TDES1_FT1 BIT(28) /* Filtering type */
+#define OWL_EMAC_BIT_TDES1_SET BIT(27) /* Setup packet */
+#define OWL_EMAC_BIT_TDES1_AC BIT(26) /* Add CRC disable */
+#define OWL_EMAC_BIT_TDES1_TER BIT(25) /* Transmit end of ring */
+#define OWL_EMAC_BIT_TDES1_DPD BIT(23) /* Disabled padding */
+#define OWL_EMAC_BIT_TDES1_FT0 BIT(22) /* Filtering type */
+#define OWL_EMAC_MSK_TDES1_TBS1 GENMASK(10, 0) /* Buffer 1 size */
+
+static const char *const owl_emac_clk_names[] = { "eth", "rmii" };
+#define OWL_EMAC_NCLKS ARRAY_SIZE(owl_emac_clk_names)
+
+enum owl_emac_clk_map {
+ OWL_EMAC_CLK_ETH = 0,
+ OWL_EMAC_CLK_RMII
+};
+
+struct owl_emac_addr_list {
+ u8 addrs[OWL_EMAC_MAX_MULTICAST_ADDRS][ETH_ALEN];
+ int count;
+};
+
+/* TX/RX descriptors */
+struct owl_emac_ring_desc {
+ u32 status;
+ u32 control;
+ u32 buf_addr;
+ u32 reserved; /* 2nd buffer address is not used */
+};
+
+struct owl_emac_ring {
+ struct owl_emac_ring_desc *descs;
+ dma_addr_t descs_dma;
+ struct sk_buff **skbs;
+ dma_addr_t *skbs_dma;
+ unsigned int size;
+ unsigned int head;
+ unsigned int tail;
+};
+
+struct owl_emac_priv {
+ struct net_device *netdev;
+ void __iomem *base;
+
+ struct clk_bulk_data clks[OWL_EMAC_NCLKS];
+ struct reset_control *reset;
+
+ struct owl_emac_ring rx_ring;
+ struct owl_emac_ring tx_ring;
+
+ struct mii_bus *mii;
+ struct napi_struct napi;
+
+ phy_interface_t phy_mode;
+ unsigned int link;
+ int speed;
+ int duplex;
+ int pause;
+ struct owl_emac_addr_list mcaddr_list;
+
+ struct work_struct mac_reset_task;
+
+ u32 msg_enable; /* Debug message level */
+ spinlock_t lock; /* Sync concurrent ring access */
+};
+
+#endif /* __OWL_EMAC_H__ */