drivers/net/ethernet/cisco/enic/vnic_dev.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 */

#ifndef _VNIC_DEV_H_
#define _VNIC_DEV_H_

#include "vnic_resource.h"
#include "vnic_devcmd.h"

#ifndef VNIC_PADDR_TARGET
#define VNIC_PADDR_TARGET	0x0000000000000000ULL
#endif

#ifndef readq
static inline u64 readq(void __iomem *reg)
{
	return (((u64)readl(reg + 0x4UL) << 32) |
		(u64)readl(reg));
}

static inline void writeq(u64 val, void __iomem *reg)
{
	writel(val & 0xffffffff, reg);
	writel(val >> 32, reg + 0x4UL);
}
#endif

#undef pr_fmt
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define VNIC_DESC_SIZE_ALIGN	16
#define VNIC_DESC_COUNT_ALIGN	32
#define VNIC_DESC_BASE_ALIGN	512
#define VNIC_DESC_MAX_COUNT	4096

enum vnic_dev_intr_mode {
	VNIC_DEV_INTR_MODE_UNKNOWN,
	VNIC_DEV_INTR_MODE_INTX,
	VNIC_DEV_INTR_MODE_MSI,
	VNIC_DEV_INTR_MODE_MSIX,
};

struct vnic_dev_bar {
	void __iomem *vaddr;
	dma_addr_t bus_addr;
	unsigned long len;
};

struct vnic_dev_ring {
	void *descs;
	size_t size;
	dma_addr_t base_addr;
	size_t base_align;
	void *descs_unaligned;
	size_t size_unaligned;
	dma_addr_t base_addr_unaligned;
	unsigned int desc_size;
	unsigned int desc_count;
	unsigned int desc_avail;
};

enum vnic_proxy_type {
	PROXY_NONE,
	PROXY_BY_BDF,
	PROXY_BY_INDEX,
};

struct vnic_res {
	void __iomem *vaddr;
	dma_addr_t bus_addr;
	unsigned int count;
};

struct vnic_intr_coal_timer_info {
	u32 mul;
	u32 div;
	u32 max_usec;
};

struct vnic_dev {
	void *priv;
	struct pci_dev *pdev;
	struct vnic_res res[RES_TYPE_MAX];
	enum vnic_dev_intr_mode intr_mode;
	struct vnic_devcmd __iomem *devcmd;
	struct vnic_devcmd_notify *notify;
	struct vnic_devcmd_notify notify_copy;
	dma_addr_t notify_pa;
	u32 notify_sz;
	dma_addr_t linkstatus_pa;
	struct vnic_stats *stats;
	dma_addr_t stats_pa;
	struct vnic_devcmd_fw_info *fw_info;
	dma_addr_t fw_info_pa;
	enum vnic_proxy_type proxy;
	u32 proxy_index;
	u64 args[VNIC_DEVCMD_NARGS];
	struct vnic_intr_coal_timer_info intr_coal_timer_info;
	struct devcmd2_controller *devcmd2;
	int (*devcmd_rtn)(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
			  int wait);
};

struct vnic_stats;

void *vnic_dev_priv(struct vnic_dev *vdev);
unsigned int vnic_dev_get_res_count(struct vnic_dev *vdev,
	enum vnic_res_type type);
void __iomem *vnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
	unsigned int index);
void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring);
int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
	unsigned int desc_count, unsigned int desc_size);
void vnic_dev_free_desc_ring(struct vnic_dev *vdev,
	struct vnic_dev_ring *ring);
int vnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
	u64 *a0, u64 *a1, int wait);
void vnic_dev_cmd_proxy_by_index_start(struct vnic_dev *vdev, u16 index);
void vnic_dev_cmd_proxy_end(struct vnic_dev *vdev);
int vnic_dev_fw_info(struct vnic_dev *vdev,
	struct vnic_devcmd_fw_info **fw_info);
int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, unsigned int size,
	void *value);
int vnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
int vnic_dev_hang_notify(struct vnic_dev *vdev);
int vnic_dev_packet_filter(struct vnic_dev *vdev, int directed, int multicast,
	int broadcast, int promisc, int allmulti);
int vnic_dev_add_addr(struct vnic_dev *vdev, const u8 *addr);
int vnic_dev_del_addr(struct vnic_dev *vdev, const u8 *addr);
int vnic_dev_get_mac_addr(struct vnic_dev *vdev, u8 *mac_addr);
int vnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
int vnic_dev_notify_unset(struct vnic_dev *vdev);
int vnic_dev_link_status(struct vnic_dev *vdev);
u32 vnic_dev_port_speed(struct vnic_dev *vdev);
u32 vnic_dev_msg_lvl(struct vnic_dev *vdev);
u32 vnic_dev_mtu(struct vnic_dev *vdev);
int vnic_dev_close(struct vnic_dev *vdev);
int vnic_dev_enable_wait(struct vnic_dev *vdev);
int vnic_dev_disable(struct vnic_dev *vdev);
int vnic_dev_open(struct vnic_dev *vdev, int arg);
int vnic_dev_open_done(struct vnic_dev *vdev, int *done);
int vnic_dev_init(struct vnic_dev *vdev, int arg);
int vnic_dev_deinit(struct vnic_dev *vdev);
void vnic_dev_intr_coal_timer_info_default(struct vnic_dev *vdev);
int vnic_dev_intr_coal_timer_info(struct vnic_dev *vdev);
int vnic_dev_hang_reset(struct vnic_dev *vdev, int arg);
int vnic_dev_soft_reset(struct vnic_dev *vdev, int arg);
int vnic_dev_hang_reset_done(struct vnic_dev *vdev, int *done);
int vnic_dev_soft_reset_done(struct vnic_dev *vdev, int *done);
void vnic_dev_set_intr_mode(struct vnic_dev *vdev,
	enum vnic_dev_intr_mode intr_mode);
enum vnic_dev_intr_mode vnic_dev_get_intr_mode(struct vnic_dev *vdev);
u32 vnic_dev_intr_coal_timer_usec_to_hw(struct vnic_dev *vdev, u32 usec);
u32 vnic_dev_intr_coal_timer_hw_to_usec(struct vnic_dev *vdev, u32 hw_cycles);
u32 vnic_dev_get_intr_coal_timer_max(struct vnic_dev *vdev);
void vnic_dev_unregister(struct vnic_dev *vdev);
int vnic_dev_set_ig_vlan_rewrite_mode(struct vnic_dev *vdev,
	u8 ig_vlan_rewrite_mode);
struct vnic_dev *vnic_dev_register(struct vnic_dev *vdev,
	void *priv, struct pci_dev *pdev, struct vnic_dev_bar *bar,
	unsigned int num_bars);
struct pci_dev *vnic_dev_get_pdev(struct vnic_dev *vdev);
int vnic_dev_init_prov2(struct vnic_dev *vdev, u8 *buf, u32 len);
int vnic_dev_enable2(struct vnic_dev *vdev, int active);
int vnic_dev_enable2_done(struct vnic_dev *vdev, int *status);
int vnic_dev_deinit_done(struct vnic_dev *vdev, int *status);
int vnic_dev_set_mac_addr(struct vnic_dev *vdev, u8 *mac_addr);
int vnic_dev_classifier(struct vnic_dev *vdev, u8 cmd, u16 *entry,
			struct filter *data);
int vnic_devcmd_init(struct vnic_dev *vdev);
int vnic_dev_overlay_offload_ctrl(struct vnic_dev *vdev, u8 overlay, u8 config);
int vnic_dev_overlay_offload_cfg(struct vnic_dev *vdev, u8 overlay,
				 u16 vxlan_udp_port_number);
int vnic_dev_get_supported_feature_ver(struct vnic_dev *vdev, u8 feature,
				       u64 *supported_versions, u64 *a1);
int vnic_dev_capable_rss_hash_type(struct vnic_dev *vdev, u8 *rss_hash_type);

#endif /* _VNIC_DEV_H_ */