1/* SPDX-License-Identifier: GPL-2.0-only */
2/* Copyright 2014 Cisco Systems, Inc. All rights reserved. */
3
4#ifndef _VNIC_DEV_H_
5#define _VNIC_DEV_H_
6
7#include "vnic_resource.h"
8#include "vnic_devcmd.h"
9
10#ifndef VNIC_PADDR_TARGET
11#define VNIC_PADDR_TARGET 0x0000000000000000ULL
12#endif
13
14#ifndef readq
15static inline u64 readq(void __iomem *reg)
16{
17 return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg);
18}
19
20static inline void writeq(u64 val, void __iomem *reg)
21{
22 writel(lower_32_bits(val), reg);
23 writel(upper_32_bits(val), reg + 0x4UL);
24}
25#endif
26
27enum vnic_dev_intr_mode {
28 VNIC_DEV_INTR_MODE_UNKNOWN,
29 VNIC_DEV_INTR_MODE_INTX,
30 VNIC_DEV_INTR_MODE_MSI,
31 VNIC_DEV_INTR_MODE_MSIX,
32};
33
34struct vnic_dev_bar {
35 void __iomem *vaddr;
36 dma_addr_t bus_addr;
37 unsigned long len;
38};
39
40struct vnic_dev_ring {
41 void *descs;
42 size_t size;
43 dma_addr_t base_addr;
44 size_t base_align;
45 void *descs_unaligned;
46 size_t size_unaligned;
47 dma_addr_t base_addr_unaligned;
48 unsigned int desc_size;
49 unsigned int desc_count;
50 unsigned int desc_avail;
51};
52
53struct vnic_dev;
54struct vnic_stats;
55
56void *svnic_dev_priv(struct vnic_dev *vdev);
57unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev,
58 enum vnic_res_type type);
59void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
60 unsigned int index);
61unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
62 unsigned int desc_count,
63 unsigned int desc_size);
64void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring);
65int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
66 unsigned int desc_count, unsigned int desc_size);
67void svnic_dev_free_desc_ring(struct vnic_dev *vdev,
68 struct vnic_dev_ring *ring);
69int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
70 u64 *a0, u64 *a1, int wait);
71int svnic_dev_fw_info(struct vnic_dev *vdev,
72 struct vnic_devcmd_fw_info **fw_info);
73int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset,
74 unsigned int size, void *value);
75int svnic_dev_stats_clear(struct vnic_dev *vdev);
76int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
77int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
78void svnic_dev_notify_unset(struct vnic_dev *vdev);
79int svnic_dev_link_status(struct vnic_dev *vdev);
80u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev);
81int svnic_dev_close(struct vnic_dev *vdev);
82int svnic_dev_enable_wait(struct vnic_dev *vdev);
83int svnic_dev_disable(struct vnic_dev *vdev);
84int svnic_dev_open(struct vnic_dev *vdev, int arg);
85int svnic_dev_open_done(struct vnic_dev *vdev, int *done);
86int svnic_dev_init(struct vnic_dev *vdev, int arg);
87struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev,
88 void *priv, struct pci_dev *pdev,
89 struct vnic_dev_bar *bar,
90 unsigned int num_bars);
91void svnic_dev_set_intr_mode(struct vnic_dev *vdev,
92 enum vnic_dev_intr_mode intr_mode);
93enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev);
94void svnic_dev_unregister(struct vnic_dev *vdev);
95int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback);
96#endif /* _VNIC_DEV_H_ */
97

source code of linux/drivers/scsi/snic/vnic_dev.h