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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/marvell/octeon_ep/octep_main.h
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/net/ethernet/marvell/octeon_ep/octep_main.h')
-rw-r--r--drivers/net/ethernet/marvell/octeon_ep/octep_main.h359
1 files changed, 359 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.h b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
new file mode 100644
index 000000000..123ffc137
--- /dev/null
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.h
@@ -0,0 +1,359 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell Octeon EP (EndPoint) Ethernet Driver
+ *
+ * Copyright (C) 2020 Marvell.
+ *
+ */
+
+#ifndef _OCTEP_MAIN_H_
+#define _OCTEP_MAIN_H_
+
+#include "octep_tx.h"
+#include "octep_rx.h"
+#include "octep_ctrl_mbox.h"
+
+#define OCTEP_DRV_NAME "octeon_ep"
+#define OCTEP_DRV_STRING "Marvell Octeon EndPoint NIC Driver"
+
+#define OCTEP_PCIID_CN93_PF 0xB200177d
+#define OCTEP_PCIID_CN93_VF 0xB203177d
+
+#define OCTEP_PCI_DEVICE_ID_CN93_PF 0xB200
+#define OCTEP_PCI_DEVICE_ID_CN93_VF 0xB203
+
+#define OCTEP_PCI_DEVICE_ID_CNF95N_PF 0xB400 //95N PF
+
+#define OCTEP_MAX_QUEUES 63
+#define OCTEP_MAX_IQ OCTEP_MAX_QUEUES
+#define OCTEP_MAX_OQ OCTEP_MAX_QUEUES
+#define OCTEP_MAX_VF 64
+
+#define OCTEP_MAX_MSIX_VECTORS OCTEP_MAX_OQ
+
+/* Flags to disable and enable Interrupts */
+#define OCTEP_INPUT_INTR (1)
+#define OCTEP_OUTPUT_INTR (2)
+#define OCTEP_MBOX_INTR (4)
+#define OCTEP_ALL_INTR 0xff
+
+#define OCTEP_IQ_INTR_RESEND_BIT 59
+#define OCTEP_OQ_INTR_RESEND_BIT 59
+
+#define OCTEP_MMIO_REGIONS 3
+/* PCI address space mapping information.
+ * Each of the 3 address spaces given by BAR0, BAR2 and BAR4 of
+ * Octeon gets mapped to different physical address spaces in
+ * the kernel.
+ */
+struct octep_mmio {
+ /* The physical address to which the PCI address space is mapped. */
+ u8 __iomem *hw_addr;
+
+ /* Flag indicating the mapping was successful. */
+ int mapped;
+};
+
+struct octep_pci_win_regs {
+ u8 __iomem *pci_win_wr_addr;
+ u8 __iomem *pci_win_rd_addr;
+ u8 __iomem *pci_win_wr_data;
+ u8 __iomem *pci_win_rd_data;
+};
+
+struct octep_hw_ops {
+ void (*setup_iq_regs)(struct octep_device *oct, int q);
+ void (*setup_oq_regs)(struct octep_device *oct, int q);
+ void (*setup_mbox_regs)(struct octep_device *oct, int mbox);
+
+ irqreturn_t (*non_ioq_intr_handler)(void *ioq_vector);
+ irqreturn_t (*ioq_intr_handler)(void *ioq_vector);
+ int (*soft_reset)(struct octep_device *oct);
+ void (*reinit_regs)(struct octep_device *oct);
+ u32 (*update_iq_read_idx)(struct octep_iq *iq);
+
+ void (*enable_interrupts)(struct octep_device *oct);
+ void (*disable_interrupts)(struct octep_device *oct);
+
+ void (*enable_io_queues)(struct octep_device *oct);
+ void (*disable_io_queues)(struct octep_device *oct);
+ void (*enable_iq)(struct octep_device *oct, int q);
+ void (*disable_iq)(struct octep_device *oct, int q);
+ void (*enable_oq)(struct octep_device *oct, int q);
+ void (*disable_oq)(struct octep_device *oct, int q);
+ void (*reset_io_queues)(struct octep_device *oct);
+ void (*dump_registers)(struct octep_device *oct);
+};
+
+/* Octeon mailbox data */
+struct octep_mbox_data {
+ u32 cmd;
+ u32 total_len;
+ u32 recv_len;
+ u32 rsvd;
+ u64 *data;
+};
+
+/* Octeon device mailbox */
+struct octep_mbox {
+ /* A spinlock to protect access to this q_mbox. */
+ spinlock_t lock;
+
+ u32 q_no;
+ u32 state;
+
+ /* SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */
+ u8 __iomem *mbox_int_reg;
+
+ /* SLI_PKT_PF_VF_MBOX_SIG(0) for PF,
+ * SLI_PKT_PF_VF_MBOX_SIG(1) for VF.
+ */
+ u8 __iomem *mbox_write_reg;
+
+ /* SLI_PKT_PF_VF_MBOX_SIG(1) for PF,
+ * SLI_PKT_PF_VF_MBOX_SIG(0) for VF.
+ */
+ u8 __iomem *mbox_read_reg;
+
+ struct octep_mbox_data mbox_data;
+};
+
+/* Tx/Rx queue vector per interrupt. */
+struct octep_ioq_vector {
+ char name[OCTEP_MSIX_NAME_SIZE];
+ struct napi_struct napi;
+ struct octep_device *octep_dev;
+ struct octep_iq *iq;
+ struct octep_oq *oq;
+ cpumask_t affinity_mask;
+};
+
+/* Octeon hardware/firmware offload capability flags. */
+#define OCTEP_CAP_TX_CHECKSUM BIT(0)
+#define OCTEP_CAP_RX_CHECKSUM BIT(1)
+#define OCTEP_CAP_TSO BIT(2)
+
+/* Link modes */
+enum octep_link_mode_bit_indices {
+ OCTEP_LINK_MODE_10GBASE_T = 0,
+ OCTEP_LINK_MODE_10GBASE_R,
+ OCTEP_LINK_MODE_10GBASE_CR,
+ OCTEP_LINK_MODE_10GBASE_KR,
+ OCTEP_LINK_MODE_10GBASE_LR,
+ OCTEP_LINK_MODE_10GBASE_SR,
+ OCTEP_LINK_MODE_25GBASE_CR,
+ OCTEP_LINK_MODE_25GBASE_KR,
+ OCTEP_LINK_MODE_25GBASE_SR,
+ OCTEP_LINK_MODE_40GBASE_CR4,
+ OCTEP_LINK_MODE_40GBASE_KR4,
+ OCTEP_LINK_MODE_40GBASE_LR4,
+ OCTEP_LINK_MODE_40GBASE_SR4,
+ OCTEP_LINK_MODE_50GBASE_CR2,
+ OCTEP_LINK_MODE_50GBASE_KR2,
+ OCTEP_LINK_MODE_50GBASE_SR2,
+ OCTEP_LINK_MODE_50GBASE_CR,
+ OCTEP_LINK_MODE_50GBASE_KR,
+ OCTEP_LINK_MODE_50GBASE_LR,
+ OCTEP_LINK_MODE_50GBASE_SR,
+ OCTEP_LINK_MODE_100GBASE_CR4,
+ OCTEP_LINK_MODE_100GBASE_KR4,
+ OCTEP_LINK_MODE_100GBASE_LR4,
+ OCTEP_LINK_MODE_100GBASE_SR4,
+ OCTEP_LINK_MODE_NBITS
+};
+
+/* Hardware interface link state information. */
+struct octep_iface_link_info {
+ /* Bitmap of Supported link speeds/modes. */
+ u64 supported_modes;
+
+ /* Bitmap of Advertised link speeds/modes. */
+ u64 advertised_modes;
+
+ /* Negotiated link speed in Mbps. */
+ u32 speed;
+
+ /* MTU */
+ u16 mtu;
+
+ /* Autonegotation state. */
+#define OCTEP_LINK_MODE_AUTONEG_SUPPORTED BIT(0)
+#define OCTEP_LINK_MODE_AUTONEG_ADVERTISED BIT(1)
+ u8 autoneg;
+
+ /* Pause frames setting. */
+#define OCTEP_LINK_MODE_PAUSE_SUPPORTED BIT(0)
+#define OCTEP_LINK_MODE_PAUSE_ADVERTISED BIT(1)
+ u8 pause;
+
+ /* Admin state of the link (ifconfig <iface> up/down */
+ u8 admin_up;
+
+ /* Operational state of the link: physical link is up down */
+ u8 oper_up;
+};
+
+/* The Octeon device specific private data structure.
+ * Each Octeon device has this structure to represent all its components.
+ */
+struct octep_device {
+ struct octep_config *conf;
+
+ /* Octeon Chip type. */
+ u16 chip_id;
+ u16 rev_id;
+
+ /* Device capabilities enabled */
+ u64 caps_enabled;
+ /* Device capabilities supported */
+ u64 caps_supported;
+
+ /* Pointer to basic Linux device */
+ struct device *dev;
+ /* Linux PCI device pointer */
+ struct pci_dev *pdev;
+ /* Netdev corresponding to the Octeon device */
+ struct net_device *netdev;
+
+ /* memory mapped io range */
+ struct octep_mmio mmio[OCTEP_MMIO_REGIONS];
+
+ /* MAC address */
+ u8 mac_addr[ETH_ALEN];
+
+ /* Tx queues (IQ: Instruction Queue) */
+ u16 num_iqs;
+ /* pkind value to be used in every Tx hardware descriptor */
+ u8 pkind;
+ /* Pointers to Octeon Tx queues */
+ struct octep_iq *iq[OCTEP_MAX_IQ];
+
+ /* Rx queues (OQ: Output Queue) */
+ u16 num_oqs;
+ /* Pointers to Octeon Rx queues */
+ struct octep_oq *oq[OCTEP_MAX_OQ];
+
+ /* Hardware port number of the PCIe interface */
+ u16 pcie_port;
+
+ /* PCI Window registers to access some hardware CSRs */
+ struct octep_pci_win_regs pci_win_regs;
+ /* Hardware operations */
+ struct octep_hw_ops hw_ops;
+
+ /* IRQ info */
+ u16 num_irqs;
+ u16 num_non_ioq_irqs;
+ char *non_ioq_irq_names;
+ struct msix_entry *msix_entries;
+ /* IOq information of it's corresponding MSI-X interrupt. */
+ struct octep_ioq_vector *ioq_vector[OCTEP_MAX_QUEUES];
+
+ /* Hardware Interface Tx statistics */
+ struct octep_iface_tx_stats iface_tx_stats;
+ /* Hardware Interface Rx statistics */
+ struct octep_iface_rx_stats iface_rx_stats;
+
+ /* Hardware Interface Link info like supported modes, aneg support */
+ struct octep_iface_link_info link_info;
+
+ /* Mailbox to talk to VFs */
+ struct octep_mbox *mbox[OCTEP_MAX_VF];
+
+ /* Work entry to handle Tx timeout */
+ struct work_struct tx_timeout_task;
+
+ /* control mbox over pf */
+ struct octep_ctrl_mbox ctrl_mbox;
+
+ /* offset for iface stats */
+ u32 ctrl_mbox_ifstats_offset;
+
+ /* Work entry to handle ctrl mbox interrupt */
+ struct work_struct ctrl_mbox_task;
+
+};
+
+static inline u16 OCTEP_MAJOR_REV(struct octep_device *oct)
+{
+ u16 rev = (oct->rev_id & 0xC) >> 2;
+
+ return (rev == 0) ? 1 : rev;
+}
+
+static inline u16 OCTEP_MINOR_REV(struct octep_device *oct)
+{
+ return (oct->rev_id & 0x3);
+}
+
+/* Octeon CSR read/write access APIs */
+#define octep_write_csr(octep_dev, reg_off, value) \
+ writel(value, (octep_dev)->mmio[0].hw_addr + (reg_off))
+
+#define octep_write_csr64(octep_dev, reg_off, val64) \
+ writeq(val64, (octep_dev)->mmio[0].hw_addr + (reg_off))
+
+#define octep_read_csr(octep_dev, reg_off) \
+ readl((octep_dev)->mmio[0].hw_addr + (reg_off))
+
+#define octep_read_csr64(octep_dev, reg_off) \
+ readq((octep_dev)->mmio[0].hw_addr + (reg_off))
+
+/* Read windowed register.
+ * @param oct - pointer to the Octeon device.
+ * @param addr - Address of the register to read.
+ *
+ * This routine is called to read from the indirectly accessed
+ * Octeon registers that are visible through a PCI BAR0 mapped window
+ * register.
+ * @return - 64 bit value read from the register.
+ */
+static inline u64
+OCTEP_PCI_WIN_READ(struct octep_device *oct, u64 addr)
+{
+ u64 val64;
+
+ addr |= 1ull << 53; /* read 8 bytes */
+ writeq(addr, oct->pci_win_regs.pci_win_rd_addr);
+ val64 = readq(oct->pci_win_regs.pci_win_rd_data);
+
+ dev_dbg(&oct->pdev->dev,
+ "%s: reg: 0x%016llx val: 0x%016llx\n", __func__, addr, val64);
+
+ return val64;
+}
+
+/* Write windowed register.
+ * @param oct - pointer to the Octeon device.
+ * @param addr - Address of the register to write
+ * @param val - Value to write
+ *
+ * This routine is called to write to the indirectly accessed
+ * Octeon registers that are visible through a PCI BAR0 mapped window
+ * register.
+ * @return Nothing.
+ */
+static inline void
+OCTEP_PCI_WIN_WRITE(struct octep_device *oct, u64 addr, u64 val)
+{
+ writeq(addr, oct->pci_win_regs.pci_win_wr_addr);
+ writeq(val, oct->pci_win_regs.pci_win_wr_data);
+
+ dev_dbg(&oct->pdev->dev,
+ "%s: reg: 0x%016llx val: 0x%016llx\n", __func__, addr, val);
+}
+
+extern struct workqueue_struct *octep_wq;
+
+int octep_device_setup(struct octep_device *oct);
+int octep_setup_iqs(struct octep_device *oct);
+void octep_free_iqs(struct octep_device *oct);
+void octep_clean_iqs(struct octep_device *oct);
+int octep_setup_oqs(struct octep_device *oct);
+void octep_free_oqs(struct octep_device *oct);
+void octep_oq_dbell_init(struct octep_device *oct);
+void octep_device_setup_cn93_pf(struct octep_device *oct);
+int octep_iq_process_completions(struct octep_iq *iq, u16 budget);
+int octep_oq_process_rx(struct octep_oq *oq, int budget);
+void octep_set_ethtool_ops(struct net_device *netdev);
+
+#endif /* _OCTEP_MAIN_H_ */