1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2014 Cisco Systems, Inc. All rights reserved.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * This program is free software; you may redistribute it and/or modify
5*4882a593Smuzhiyun * it under the terms of the GNU General Public License as published by
6*4882a593Smuzhiyun * the Free Software Foundation; version 2 of the License.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
9*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
10*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
11*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
12*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
13*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
14*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
15*4882a593Smuzhiyun * SOFTWARE.
16*4882a593Smuzhiyun */
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #ifndef _VNIC_DEV_H_
19*4882a593Smuzhiyun #define _VNIC_DEV_H_
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun #include "vnic_resource.h"
22*4882a593Smuzhiyun #include "vnic_devcmd.h"
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun #ifndef VNIC_PADDR_TARGET
25*4882a593Smuzhiyun #define VNIC_PADDR_TARGET 0x0000000000000000ULL
26*4882a593Smuzhiyun #endif
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun #ifndef readq
readq(void __iomem * reg)29*4882a593Smuzhiyun static inline u64 readq(void __iomem *reg)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun return ((u64)readl(reg + 0x4UL) << 32) | (u64)readl(reg);
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
writeq(u64 val,void __iomem * reg)34*4882a593Smuzhiyun static inline void writeq(u64 val, void __iomem *reg)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun writel(lower_32_bits(val), reg);
37*4882a593Smuzhiyun writel(upper_32_bits(val), reg + 0x4UL);
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun #endif
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun enum vnic_dev_intr_mode {
42*4882a593Smuzhiyun VNIC_DEV_INTR_MODE_UNKNOWN,
43*4882a593Smuzhiyun VNIC_DEV_INTR_MODE_INTX,
44*4882a593Smuzhiyun VNIC_DEV_INTR_MODE_MSI,
45*4882a593Smuzhiyun VNIC_DEV_INTR_MODE_MSIX,
46*4882a593Smuzhiyun };
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun struct vnic_dev_bar {
49*4882a593Smuzhiyun void __iomem *vaddr;
50*4882a593Smuzhiyun dma_addr_t bus_addr;
51*4882a593Smuzhiyun unsigned long len;
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun struct vnic_dev_ring {
55*4882a593Smuzhiyun void *descs;
56*4882a593Smuzhiyun size_t size;
57*4882a593Smuzhiyun dma_addr_t base_addr;
58*4882a593Smuzhiyun size_t base_align;
59*4882a593Smuzhiyun void *descs_unaligned;
60*4882a593Smuzhiyun size_t size_unaligned;
61*4882a593Smuzhiyun dma_addr_t base_addr_unaligned;
62*4882a593Smuzhiyun unsigned int desc_size;
63*4882a593Smuzhiyun unsigned int desc_count;
64*4882a593Smuzhiyun unsigned int desc_avail;
65*4882a593Smuzhiyun };
66*4882a593Smuzhiyun
67*4882a593Smuzhiyun struct vnic_dev;
68*4882a593Smuzhiyun struct vnic_stats;
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun void *svnic_dev_priv(struct vnic_dev *vdev);
71*4882a593Smuzhiyun unsigned int svnic_dev_get_res_count(struct vnic_dev *vdev,
72*4882a593Smuzhiyun enum vnic_res_type type);
73*4882a593Smuzhiyun void __iomem *svnic_dev_get_res(struct vnic_dev *vdev, enum vnic_res_type type,
74*4882a593Smuzhiyun unsigned int index);
75*4882a593Smuzhiyun unsigned int svnic_dev_desc_ring_size(struct vnic_dev_ring *ring,
76*4882a593Smuzhiyun unsigned int desc_count,
77*4882a593Smuzhiyun unsigned int desc_size);
78*4882a593Smuzhiyun void svnic_dev_clear_desc_ring(struct vnic_dev_ring *ring);
79*4882a593Smuzhiyun int svnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,
80*4882a593Smuzhiyun unsigned int desc_count, unsigned int desc_size);
81*4882a593Smuzhiyun void svnic_dev_free_desc_ring(struct vnic_dev *vdev,
82*4882a593Smuzhiyun struct vnic_dev_ring *ring);
83*4882a593Smuzhiyun int svnic_dev_cmd(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd,
84*4882a593Smuzhiyun u64 *a0, u64 *a1, int wait);
85*4882a593Smuzhiyun int svnic_dev_fw_info(struct vnic_dev *vdev,
86*4882a593Smuzhiyun struct vnic_devcmd_fw_info **fw_info);
87*4882a593Smuzhiyun int svnic_dev_spec(struct vnic_dev *vdev, unsigned int offset,
88*4882a593Smuzhiyun unsigned int size, void *value);
89*4882a593Smuzhiyun int svnic_dev_stats_clear(struct vnic_dev *vdev);
90*4882a593Smuzhiyun int svnic_dev_stats_dump(struct vnic_dev *vdev, struct vnic_stats **stats);
91*4882a593Smuzhiyun int svnic_dev_notify_set(struct vnic_dev *vdev, u16 intr);
92*4882a593Smuzhiyun void svnic_dev_notify_unset(struct vnic_dev *vdev);
93*4882a593Smuzhiyun int svnic_dev_link_status(struct vnic_dev *vdev);
94*4882a593Smuzhiyun u32 svnic_dev_link_down_cnt(struct vnic_dev *vdev);
95*4882a593Smuzhiyun int svnic_dev_close(struct vnic_dev *vdev);
96*4882a593Smuzhiyun int svnic_dev_enable_wait(struct vnic_dev *vdev);
97*4882a593Smuzhiyun int svnic_dev_disable(struct vnic_dev *vdev);
98*4882a593Smuzhiyun int svnic_dev_open(struct vnic_dev *vdev, int arg);
99*4882a593Smuzhiyun int svnic_dev_open_done(struct vnic_dev *vdev, int *done);
100*4882a593Smuzhiyun int svnic_dev_init(struct vnic_dev *vdev, int arg);
101*4882a593Smuzhiyun struct vnic_dev *svnic_dev_alloc_discover(struct vnic_dev *vdev,
102*4882a593Smuzhiyun void *priv, struct pci_dev *pdev,
103*4882a593Smuzhiyun struct vnic_dev_bar *bar,
104*4882a593Smuzhiyun unsigned int num_bars);
105*4882a593Smuzhiyun void svnic_dev_set_intr_mode(struct vnic_dev *vdev,
106*4882a593Smuzhiyun enum vnic_dev_intr_mode intr_mode);
107*4882a593Smuzhiyun enum vnic_dev_intr_mode svnic_dev_get_intr_mode(struct vnic_dev *vdev);
108*4882a593Smuzhiyun void svnic_dev_unregister(struct vnic_dev *vdev);
109*4882a593Smuzhiyun int svnic_dev_cmd_init(struct vnic_dev *vdev, int fallback);
110*4882a593Smuzhiyun #endif /* _VNIC_DEV_H_ */
111