diff options
Diffstat (limited to 'drivers/net/enic/vnic_intr.h')
-rw-r--r-- | drivers/net/enic/vnic_intr.h | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/drivers/net/enic/vnic_intr.h b/drivers/net/enic/vnic_intr.h deleted file mode 100644 index 2b1636392294..000000000000 --- a/drivers/net/enic/vnic_intr.h +++ /dev/null | |||
@@ -1,111 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. | ||
3 | * Copyright 2007 Nuova Systems, Inc. All rights reserved. | ||
4 | * | ||
5 | * This program is free software; you may redistribute it and/or modify | ||
6 | * it under the terms of the GNU General Public License as published by | ||
7 | * the Free Software Foundation; version 2 of the License. | ||
8 | * | ||
9 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
10 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
11 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
12 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | ||
13 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | ||
14 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
15 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
16 | * SOFTWARE. | ||
17 | * | ||
18 | */ | ||
19 | |||
20 | #ifndef _VNIC_INTR_H_ | ||
21 | #define _VNIC_INTR_H_ | ||
22 | |||
23 | #include <linux/pci.h> | ||
24 | |||
25 | #include "vnic_dev.h" | ||
26 | |||
27 | #define VNIC_INTR_TIMER_TYPE_ABS 0 | ||
28 | #define VNIC_INTR_TIMER_TYPE_QUIET 1 | ||
29 | |||
30 | /* Interrupt control */ | ||
31 | struct vnic_intr_ctrl { | ||
32 | u32 coalescing_timer; /* 0x00 */ | ||
33 | u32 pad0; | ||
34 | u32 coalescing_value; /* 0x08 */ | ||
35 | u32 pad1; | ||
36 | u32 coalescing_type; /* 0x10 */ | ||
37 | u32 pad2; | ||
38 | u32 mask_on_assertion; /* 0x18 */ | ||
39 | u32 pad3; | ||
40 | u32 mask; /* 0x20 */ | ||
41 | u32 pad4; | ||
42 | u32 int_credits; /* 0x28 */ | ||
43 | u32 pad5; | ||
44 | u32 int_credit_return; /* 0x30 */ | ||
45 | u32 pad6; | ||
46 | }; | ||
47 | |||
48 | struct vnic_intr { | ||
49 | unsigned int index; | ||
50 | struct vnic_dev *vdev; | ||
51 | struct vnic_intr_ctrl __iomem *ctrl; /* memory-mapped */ | ||
52 | }; | ||
53 | |||
54 | static inline void vnic_intr_unmask(struct vnic_intr *intr) | ||
55 | { | ||
56 | iowrite32(0, &intr->ctrl->mask); | ||
57 | } | ||
58 | |||
59 | static inline void vnic_intr_mask(struct vnic_intr *intr) | ||
60 | { | ||
61 | iowrite32(1, &intr->ctrl->mask); | ||
62 | } | ||
63 | |||
64 | static inline int vnic_intr_masked(struct vnic_intr *intr) | ||
65 | { | ||
66 | return ioread32(&intr->ctrl->mask); | ||
67 | } | ||
68 | |||
69 | static inline void vnic_intr_return_credits(struct vnic_intr *intr, | ||
70 | unsigned int credits, int unmask, int reset_timer) | ||
71 | { | ||
72 | #define VNIC_INTR_UNMASK_SHIFT 16 | ||
73 | #define VNIC_INTR_RESET_TIMER_SHIFT 17 | ||
74 | |||
75 | u32 int_credit_return = (credits & 0xffff) | | ||
76 | (unmask ? (1 << VNIC_INTR_UNMASK_SHIFT) : 0) | | ||
77 | (reset_timer ? (1 << VNIC_INTR_RESET_TIMER_SHIFT) : 0); | ||
78 | |||
79 | iowrite32(int_credit_return, &intr->ctrl->int_credit_return); | ||
80 | } | ||
81 | |||
82 | static inline unsigned int vnic_intr_credits(struct vnic_intr *intr) | ||
83 | { | ||
84 | return ioread32(&intr->ctrl->int_credits); | ||
85 | } | ||
86 | |||
87 | static inline void vnic_intr_return_all_credits(struct vnic_intr *intr) | ||
88 | { | ||
89 | unsigned int credits = vnic_intr_credits(intr); | ||
90 | int unmask = 1; | ||
91 | int reset_timer = 1; | ||
92 | |||
93 | vnic_intr_return_credits(intr, credits, unmask, reset_timer); | ||
94 | } | ||
95 | |||
96 | static inline u32 vnic_intr_legacy_pba(u32 __iomem *legacy_pba) | ||
97 | { | ||
98 | /* read PBA without clearing */ | ||
99 | return ioread32(legacy_pba); | ||
100 | } | ||
101 | |||
102 | void vnic_intr_free(struct vnic_intr *intr); | ||
103 | int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr, | ||
104 | unsigned int index); | ||
105 | void vnic_intr_init(struct vnic_intr *intr, u32 coalescing_timer, | ||
106 | unsigned int coalescing_type, unsigned int mask_on_assertion); | ||
107 | void vnic_intr_coalescing_timer_set(struct vnic_intr *intr, | ||
108 | u32 coalescing_timer); | ||
109 | void vnic_intr_clean(struct vnic_intr *intr); | ||
110 | |||
111 | #endif /* _VNIC_INTR_H_ */ | ||