c6745bc2b8
Moved controller-related variables from spdk_vhost_scsi_controller to spdk_vhost_dev. Generalized vhost to operate on non scsi-specific controller struct. Now spdk_vhost_scsi_dev contains direct spdk_vhost_dev field instead of a pointer. This means there is no more allocation/deallocation on poller start/stop. Change-Id: I99739d58833ee023a75cb530cc80294e02f28090 Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/361880 Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_VHOST_TASK_H
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#define SPDK_VHOST_TASK_H
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#include "spdk/scsi.h"
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/* Allocated iovec buffer len */
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#define VHOST_SCSI_IOVS_LEN 128
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struct spdk_vhost_dev;
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struct spdk_vhost_task {
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struct spdk_scsi_task scsi;
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union {
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struct virtio_scsi_cmd_resp *resp;
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struct virtio_scsi_ctrl_tmf_resp *tmf_resp;
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};
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struct spdk_vhost_scsi_dev *svdev;
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struct spdk_scsi_dev *scsi_dev;
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int req_idx;
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struct rte_vhost_vring *vq;
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TAILQ_ENTRY(spdk_vhost_task) iovecs_link;
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};
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void spdk_vhost_enqueue_task(struct spdk_vhost_task *task);
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struct spdk_vhost_task *spdk_vhost_dequeue_task(void);
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void spdk_vhost_task_put(struct spdk_vhost_task *task);
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struct spdk_vhost_task *spdk_vhost_task_get(struct spdk_vhost_scsi_dev *vdev);
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void spdk_vhost_dev_task_ref(struct spdk_vhost_dev *vdev);
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void spdk_vhost_dev_task_unref(struct spdk_vhost_dev *vdev);
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void spdk_vhost_iovec_free(struct iovec *iov);
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struct iovec *spdk_vhost_iovec_alloc(void);
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#endif /* SPDK_VHOST_TASK_H */
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