Spdk/lib/vhost/task.h
Ben Walker 4185205540 scsi: Remove cb_event. It is no longer necessary.
This is an artifact from a past design. There is no longer
any reason to create an event here - the bdev layer will
correctly queue events and call completions on the correct
thread.

Change-Id: I145dab4046899834c0449ec7380dcbb28215b493
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/364831
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-06-22 10:47:31 -04:00

77 lines
2.7 KiB
C

/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SPDK_VHOST_TASK_H
#define SPDK_VHOST_TASK_H
#include "spdk/scsi.h"
#undef container_of
#define container_of(ptr, type, member) ({ \
typeof(((type *)0)->member) *__mptr = (ptr); \
(type *)((char *)__mptr - offsetof(type, member)); })
/* Allocated iovec buffer len */
#define VHOST_SCSI_IOVS_LEN 128
struct spdk_vhost_dev;
struct spdk_vhost_task {
struct spdk_scsi_task scsi;
struct iovec iovs[VHOST_SCSI_IOVS_LEN];
union {
struct virtio_scsi_cmd_resp *resp;
struct virtio_scsi_ctrl_tmf_resp *tmf_resp;
};
struct spdk_vhost_scsi_dev *svdev;
struct spdk_scsi_dev *scsi_dev;
int req_idx;
struct rte_vhost_vring *vq;
};
void spdk_vhost_task_put(struct spdk_vhost_task *task);
struct spdk_vhost_task *spdk_vhost_task_get(struct spdk_vhost_scsi_dev *vdev,
spdk_scsi_task_cpl cpl_fn);
void spdk_vhost_dev_task_ref(struct spdk_vhost_dev *vdev);
void spdk_vhost_dev_task_unref(struct spdk_vhost_dev *vdev);
void spdk_vhost_task_cpl(struct spdk_scsi_task *scsi_task);
void spdk_vhost_task_mgmt_cpl(struct spdk_scsi_task *scsi_task);
#endif /* SPDK_VHOST_TASK_H */