mic_virtio.h
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/*
* Intel MIC Platform Software Stack (MPSS)
*
* Copyright(c) 2013 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Disclaimer: The codes contained in these modules may be specific to
* the Intel Software Development Platform codenamed: Knights Ferry, and
* the Intel product codenamed: Knights Corner, and are not backward
* compatible with other Intel products. Additionally, Intel will NOT
* support the codes or instruction set in future products.
*
* Intel MIC Card driver.
*
*/
#ifndef __MIC_CARD_VIRTIO_H
#define __MIC_CARD_VIRTIO_H
#include <linux/mic_common.h>
#include "mic_device.h"
/*
* 64 bit I/O access
*/
#ifndef ioread64
#define ioread64 readq
#endif
#ifndef iowrite64
#define iowrite64 writeq
#endif
static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc)
{
return sizeof(*desc)
+ ioread8(&desc->num_vq) * sizeof(struct mic_vqconfig)
+ ioread8(&desc->feature_len) * 2
+ ioread8(&desc->config_len);
}
static inline struct mic_vqconfig __iomem *
mic_vq_config(struct mic_device_desc __iomem *desc)
{
return (struct mic_vqconfig __iomem *)(desc + 1);
}
static inline __u8 __iomem *
mic_vq_features(struct mic_device_desc __iomem *desc)
{
return (__u8 __iomem *)(mic_vq_config(desc) + ioread8(&desc->num_vq));
}
static inline __u8 __iomem *
mic_vq_configspace(struct mic_device_desc __iomem *desc)
{
return mic_vq_features(desc) + ioread8(&desc->feature_len) * 2;
}
static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc)
{
return mic_aligned_desc_size(desc) + sizeof(struct mic_device_ctrl);
}
int mic_devices_init(struct mic_driver *mdrv);
void mic_devices_uninit(struct mic_driver *mdrv);
#endif