| Ashutosh Dixit | 2141c7c | 2013-09-05 16:42:28 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Intel MIC Platform Software Stack (MPSS) |
| 3 | * |
| 4 | * Copyright(c) 2013 Intel Corporation. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License, version 2, as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License for more details. |
| 14 | * |
| 15 | * The full GNU General Public License is included in this distribution in |
| 16 | * the file called "COPYING". |
| 17 | * |
| 18 | * Disclaimer: The codes contained in these modules may be specific to |
| 19 | * the Intel Software Development Platform codenamed: Knights Ferry, and |
| 20 | * the Intel product codenamed: Knights Corner, and are not backward |
| 21 | * compatible with other Intel products. Additionally, Intel will NOT |
| 22 | * support the codes or instruction set in future products. |
| 23 | * |
| 24 | * Intel MIC Card driver. |
| 25 | * |
| 26 | */ |
| 27 | #ifndef __MIC_CARD_VIRTIO_H |
| 28 | #define __MIC_CARD_VIRTIO_H |
| 29 | |
| 30 | #include <linux/mic_common.h> |
| 31 | #include "mic_device.h" |
| 32 | |
| 33 | /* |
| 34 | * 64 bit I/O access |
| 35 | */ |
| 36 | #ifndef ioread64 |
| 37 | #define ioread64 readq |
| 38 | #endif |
| 39 | #ifndef iowrite64 |
| 40 | #define iowrite64 writeq |
| 41 | #endif |
| 42 | |
| 43 | static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc) |
| 44 | { |
| 45 | return mic_aligned_size(*desc) |
| 46 | + ioread8(&desc->num_vq) * mic_aligned_size(struct mic_vqconfig) |
| 47 | + ioread8(&desc->feature_len) * 2 |
| 48 | + ioread8(&desc->config_len); |
| 49 | } |
| 50 | |
| 51 | static inline struct mic_vqconfig __iomem * |
| 52 | mic_vq_config(struct mic_device_desc __iomem *desc) |
| 53 | { |
| 54 | return (struct mic_vqconfig __iomem *)(desc + 1); |
| 55 | } |
| 56 | |
| 57 | static inline __u8 __iomem * |
| 58 | mic_vq_features(struct mic_device_desc __iomem *desc) |
| 59 | { |
| 60 | return (__u8 __iomem *)(mic_vq_config(desc) + ioread8(&desc->num_vq)); |
| 61 | } |
| 62 | |
| 63 | static inline __u8 __iomem * |
| 64 | mic_vq_configspace(struct mic_device_desc __iomem *desc) |
| 65 | { |
| 66 | return mic_vq_features(desc) + ioread8(&desc->feature_len) * 2; |
| 67 | } |
| 68 | static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc) |
| 69 | { |
| 70 | return mic_aligned_desc_size(desc) + |
| 71 | mic_aligned_size(struct mic_device_ctrl); |
| 72 | } |
| 73 | |
| 74 | int mic_devices_init(struct mic_driver *mdrv); |
| 75 | void mic_devices_uninit(struct mic_driver *mdrv); |
| 76 | |
| 77 | #endif |