Loading...
1/*
2 * Copyright 2014 Cisco Systems, Inc. All rights reserved.
3 *
4 * This program is free software; you may redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
15 * SOFTWARE.
16 */
17
18#ifndef _VNIC_DEV_H_
19#define _VNIC_DEV_H_
20
21#include "vnic_resource.h"
22#include "vnic_devcmd.h"
23
24#ifndef VNIC_PADDR_TARGET
25#define VNIC_PADDR_TARGET 0x0000000000000000ULL
26#endif
27
28#ifndef readq
29static inline u64 readq(void __iomem *reg)
30{
31 return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg);
32}
33
34static inline void writeq(u64 val, void __iomem *reg)
35{
36 writel(lower_32_bits(val), reg);
37 writel(upper_32_bits(val), reg + 0x4UL);
38}
39#endif
40
41enum vnic_dev_intr_mode {
42 VNIC_DEV_INTR_MODE_UNKNOWN,
43 VNIC_DEV_INTR_MODE_INTX,
44 VNIC_DEV_INTR_MODE_MSI,
45 VNIC_DEV_INTR_MODE_MSIX,
46};
47
48struct vnic_dev_bar {
49 void __iomem *vaddr;
50 dma_addr_t bus_addr;
51 unsigned long len;
52};
53
54struct vnic_dev_ring {
55 void *descs;
56 size_t size;
57 dma_addr_t base_addr;
58 size_t base_align;
59 void *descs_unaligned;
60 size_t size_unaligned;
61 dma_addr_t base_addr_unaligned;
62 unsigned int desc_size;
63 unsigned int desc_count;
64 unsigned int desc_avail;
65};
66
67struct vnic_dev;
68struct vnic_stats;
69
70void *svnic_dev_priv(struct vnic_dev *vdev);
71unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev,
72 enum vnic_res_type type);
73void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
74 unsigned int index);
75unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
76 unsigned int desc_count,
77 unsigned int desc_size);
78void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring);
79int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
80 unsigned int desc_count, unsigned int desc_size);
81void svnic_dev_free_desc_ring(struct vnic_dev *vdev,
82 struct vnic_dev_ring *ring);
83int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
84 u64 *a0, u64 *a1, int wait);
85int svnic_dev_fw_info(struct vnic_dev *vdev,
86 struct vnic_devcmd_fw_info **fw_info);
87int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset,
88 unsigned int size, void *value);
89int svnic_dev_stats_clear(struct vnic_dev *vdev);
90int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
91int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
92void svnic_dev_notify_unset(struct vnic_dev *vdev);
93int svnic_dev_link_status(struct vnic_dev *vdev);
94u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev);
95int svnic_dev_close(struct vnic_dev *vdev);
96int svnic_dev_enable_wait(struct vnic_dev *vdev);
97int svnic_dev_disable(struct vnic_dev *vdev);
98int svnic_dev_open(struct vnic_dev *vdev, int arg);
99int svnic_dev_open_done(struct vnic_dev *vdev, int *done);
100int svnic_dev_init(struct vnic_dev *vdev, int arg);
101struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev,
102 void *priv, struct pci_dev *pdev,
103 struct vnic_dev_bar *bar,
104 unsigned int num_bars);
105void svnic_dev_set_intr_mode(struct vnic_dev *vdev,
106 enum vnic_dev_intr_mode intr_mode);
107enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev);
108void svnic_dev_unregister(struct vnic_dev *vdev);
109int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback);
110#endif /* _VNIC_DEV_H_ */
1/*
2 * Copyright 2014 Cisco Systems, Inc. All rights reserved.
3 *
4 * This program is free software; you may redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
15 * SOFTWARE.
16 */
17
18#ifndef _VNIC_DEV_H_
19#define _VNIC_DEV_H_
20
21#include "vnic_resource.h"
22#include "vnic_devcmd.h"
23
24#ifndef VNIC_PADDR_TARGET
25#define VNIC_PADDR_TARGET 0x0000000000000000ULL
26#endif
27
28#ifndef readq
29static inline u64 readq(void __iomem *reg)
30{
31 return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg);
32}
33
34static inline void writeq(u64 val, void __iomem *reg)
35{
36 writel(lower_32_bits(val), reg);
37 writel(upper_32_bits(val), reg + 0x4UL);
38}
39#endif
40
41enum vnic_dev_intr_mode {
42 VNIC_DEV_INTR_MODE_UNKNOWN,
43 VNIC_DEV_INTR_MODE_INTX,
44 VNIC_DEV_INTR_MODE_MSI,
45 VNIC_DEV_INTR_MODE_MSIX,
46};
47
48struct vnic_dev_bar {
49 void __iomem *vaddr;
50 dma_addr_t bus_addr;
51 unsigned long len;
52};
53
54struct vnic_dev_ring {
55 void *descs;
56 size_t size;
57 dma_addr_t base_addr;
58 size_t base_align;
59 void *descs_unaligned;
60 size_t size_unaligned;
61 dma_addr_t base_addr_unaligned;
62 unsigned int desc_size;
63 unsigned int desc_count;
64 unsigned int desc_avail;
65};
66
67struct vnic_dev;
68struct vnic_stats;
69
70void *svnic_dev_priv(struct vnic_dev *vdev);
71unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev,
72 enum vnic_res_type type);
73void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
74 unsigned int index);
75unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
76 unsigned int desc_count,
77 unsigned int desc_size);
78void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring);
79int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
80 unsigned int desc_count, unsigned int desc_size);
81void svnic_dev_free_desc_ring(struct vnic_dev *vdev,
82 struct vnic_dev_ring *ring);
83int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
84 u64 *a0, u64 *a1, int wait);
85int svnic_dev_fw_info(struct vnic_dev *vdev,
86 struct vnic_devcmd_fw_info **fw_info);
87int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset,
88 unsigned int size, void *value);
89int svnic_dev_stats_clear(struct vnic_dev *vdev);
90int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
91int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
92void svnic_dev_notify_unset(struct vnic_dev *vdev);
93int svnic_dev_link_status(struct vnic_dev *vdev);
94u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev);
95int svnic_dev_close(struct vnic_dev *vdev);
96int svnic_dev_enable_wait(struct vnic_dev *vdev);
97int svnic_dev_disable(struct vnic_dev *vdev);
98int svnic_dev_open(struct vnic_dev *vdev, int arg);
99int svnic_dev_open_done(struct vnic_dev *vdev, int *done);
100int svnic_dev_init(struct vnic_dev *vdev, int arg);
101struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev,
102 void *priv, struct pci_dev *pdev,
103 struct vnic_dev_bar *bar,
104 unsigned int num_bars);
105void svnic_dev_set_intr_mode(struct vnic_dev *vdev,
106 enum vnic_dev_intr_mode intr_mode);
107enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev);
108void svnic_dev_unregister(struct vnic_dev *vdev);
109int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback);
110#endif /* _VNIC_DEV_H_ */