diff options
Diffstat (limited to 'drivers/staging/hv/storvsc_api.h')
| -rw-r--r-- | drivers/staging/hv/storvsc_api.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/drivers/staging/hv/storvsc_api.h b/drivers/staging/hv/storvsc_api.h deleted file mode 100644 index fbf57556d890..000000000000 --- a/drivers/staging/hv/storvsc_api.h +++ /dev/null @@ -1,110 +0,0 @@ -/* - * - * Copyright (c) 2009, Microsoft Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * - * Authors: - * Haiyang Zhang <haiyangz@microsoft.com> - * Hank Janssen <hjanssen@microsoft.com> - * - */ - - -#ifndef _STORVSC_API_H_ -#define _STORVSC_API_H_ - -#include "vmbus_api.h" - -/* Defines */ -#define STORVSC_RING_BUFFER_SIZE (20*PAGE_SIZE) -#define BLKVSC_RING_BUFFER_SIZE (20*PAGE_SIZE) - -#define STORVSC_MAX_IO_REQUESTS 128 - -/* - * In Hyper-V, each port/path/target maps to 1 scsi host adapter. In - * reality, the path/target is not used (ie always set to 0) so our - * scsi host adapter essentially has 1 bus with 1 target that contains - * up to 256 luns. - */ -#define STORVSC_MAX_LUNS_PER_TARGET 64 -#define STORVSC_MAX_TARGETS 1 -#define STORVSC_MAX_CHANNELS 1 - -struct hv_storvsc_request; - -/* Matches Windows-end */ -enum storvsc_request_type{ - WRITE_TYPE, - READ_TYPE, - UNKNOWN_TYPE, -}; - -struct hv_storvsc_request { - enum storvsc_request_type type; - u32 host; - u32 bus; - u32 target_id; - u32 lun_id; - u8 *cdb; - u32 cdb_len; - u32 status; - u32 bytes_xfer; - - unsigned char *sense_buffer; - u32 sense_buffer_size; - - void *context; - - void (*on_io_completion)(struct hv_storvsc_request *request); - - /* This points to the memory after DataBuffer */ - void *extension; - - struct hv_multipage_buffer data_buffer; -}; - -/* Represents the block vsc driver */ -struct storvsc_driver_object { - /* Must be the first field */ - /* Which is a bug FIXME! */ - struct hv_driver base; - - /* Set by caller (in bytes) */ - u32 ring_buffer_size; - - /* Allocate this much private extension for each I/O request */ - u32 request_ext_size; - - /* Maximum # of requests in flight per channel/device */ - u32 max_outstanding_req_per_channel; - - /* Specific to this driver */ - int (*on_io_request)(struct hv_device *device, - struct hv_storvsc_request *request); -}; - -struct storvsc_device_info { - unsigned int port_number; - unsigned char path_id; - unsigned char target_id; -}; - -/* Interface */ -int stor_vsc_initialize(struct hv_driver *driver); -int stor_vsc_on_host_reset(struct hv_device *device); -int blk_vsc_initialize(struct hv_driver *driver); - -#endif /* _STORVSC_API_H_ */ |