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11#ifndef _IFCVF_H_
12#define _IFCVF_H_
13
14#include <linux/pci.h>
15#include <linux/pci_regs.h>
16#include <linux/vdpa.h>
17#include <uapi/linux/virtio_net.h>
18#include <uapi/linux/virtio_blk.h>
19#include <uapi/linux/virtio_config.h>
20#include <uapi/linux/virtio_pci.h>
21
22#define N3000_VENDOR_ID 0x1AF4
23#define N3000_DEVICE_ID 0x1041
24#define N3000_SUBSYS_VENDOR_ID 0x8086
25#define N3000_SUBSYS_DEVICE_ID 0x001A
26
27#define C5000X_PL_VENDOR_ID 0x1AF4
28#define C5000X_PL_DEVICE_ID 0x1000
29#define C5000X_PL_SUBSYS_VENDOR_ID 0x8086
30#define C5000X_PL_SUBSYS_DEVICE_ID 0x0001
31
32#define C5000X_PL_BLK_VENDOR_ID 0x1AF4
33#define C5000X_PL_BLK_DEVICE_ID 0x1001
34#define C5000X_PL_BLK_SUBSYS_VENDOR_ID 0x8086
35#define C5000X_PL_BLK_SUBSYS_DEVICE_ID 0x0002
36
37#define IFCVF_NET_SUPPORTED_FEATURES \
38 ((1ULL << VIRTIO_NET_F_MAC) | \
39 (1ULL << VIRTIO_F_ANY_LAYOUT) | \
40 (1ULL << VIRTIO_F_VERSION_1) | \
41 (1ULL << VIRTIO_NET_F_STATUS) | \
42 (1ULL << VIRTIO_F_ORDER_PLATFORM) | \
43 (1ULL << VIRTIO_F_ACCESS_PLATFORM) | \
44 (1ULL << VIRTIO_NET_F_MRG_RXBUF))
45
46
47#define IFCVF_MAX_QUEUE_PAIRS 1
48
49#define IFCVF_QUEUE_ALIGNMENT PAGE_SIZE
50#define IFCVF_QUEUE_MAX 32768
51#define IFCVF_MSI_CONFIG_OFF 0
52#define IFCVF_MSI_QUEUE_OFF 1
53#define IFCVF_PCI_MAX_RESOURCE 6
54
55#define IFCVF_LM_CFG_SIZE 0x40
56#define IFCVF_LM_RING_STATE_OFFSET 0x20
57#define IFCVF_LM_BAR 4
58
59#define IFCVF_ERR(pdev, fmt, ...) dev_err(&pdev->dev, fmt, ##__VA_ARGS__)
60#define IFCVF_DBG(pdev, fmt, ...) dev_dbg(&pdev->dev, fmt, ##__VA_ARGS__)
61#define IFCVF_INFO(pdev, fmt, ...) dev_info(&pdev->dev, fmt, ##__VA_ARGS__)
62
63#define ifcvf_private_to_vf(adapter) \
64 (&((struct ifcvf_adapter *)adapter)->vf)
65
66#define IFCVF_MAX_INTR (IFCVF_MAX_QUEUE_PAIRS * 2 + 1)
67
68struct vring_info {
69 u64 desc;
70 u64 avail;
71 u64 used;
72 u16 size;
73 u16 last_avail_idx;
74 bool ready;
75 void __iomem *notify_addr;
76 u32 irq;
77 struct vdpa_callback cb;
78 char msix_name[256];
79};
80
81struct ifcvf_hw {
82 u8 __iomem *isr;
83
84 u8 __iomem *lm_cfg;
85 u16 nr_vring;
86
87 u8 notify_bar;
88
89 void __iomem *notify_base;
90 u32 notify_off_multiplier;
91 u64 req_features;
92 u64 hw_features;
93 u32 dev_type;
94 struct virtio_pci_common_cfg __iomem *common_cfg;
95 void __iomem *net_cfg;
96 struct vring_info vring[IFCVF_MAX_QUEUE_PAIRS * 2];
97 void __iomem * const *base;
98 char config_msix_name[256];
99 struct vdpa_callback config_cb;
100 unsigned int config_irq;
101};
102
103struct ifcvf_adapter {
104 struct vdpa_device vdpa;
105 struct pci_dev *pdev;
106 struct ifcvf_hw vf;
107};
108
109struct ifcvf_vring_lm_cfg {
110 u32 idx_addr[2];
111 u8 reserved[IFCVF_LM_CFG_SIZE - 8];
112};
113
114struct ifcvf_lm_cfg {
115 u8 reserved[IFCVF_LM_RING_STATE_OFFSET];
116 struct ifcvf_vring_lm_cfg vring_lm_cfg[IFCVF_MAX_QUEUE_PAIRS];
117};
118
119int ifcvf_init_hw(struct ifcvf_hw *hw, struct pci_dev *dev);
120int ifcvf_start_hw(struct ifcvf_hw *hw);
121void ifcvf_stop_hw(struct ifcvf_hw *hw);
122void ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid);
123void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset,
124 void *dst, int length);
125void ifcvf_write_net_config(struct ifcvf_hw *hw, u64 offset,
126 const void *src, int length);
127u8 ifcvf_get_status(struct ifcvf_hw *hw);
128void ifcvf_set_status(struct ifcvf_hw *hw, u8 status);
129void io_write64_twopart(u64 val, u32 *lo, u32 *hi);
130void ifcvf_reset(struct ifcvf_hw *hw);
131u64 ifcvf_get_features(struct ifcvf_hw *hw);
132u64 ifcvf_get_hw_features(struct ifcvf_hw *hw);
133int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features);
134u16 ifcvf_get_vq_state(struct ifcvf_hw *hw, u16 qid);
135int ifcvf_set_vq_state(struct ifcvf_hw *hw, u16 qid, u16 num);
136struct ifcvf_adapter *vf_to_adapter(struct ifcvf_hw *hw);
137int ifcvf_probed_virtio_net(struct ifcvf_hw *hw);
138#endif
139