b3ecb4c45c
Instead of getting tasks from mempool 1 by 1, prefetch a whole chunk. Change-Id: I17f61e3de9b081b61af7a2a8568681aafe26ab0a Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/366719 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com> Reviewed-by: Jim Harris <james.r.harris@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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#undef container_of
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#define container_of(ptr, type, member) ({ \
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typeof(((type *)0)->member) *__mptr = (ptr); \
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(type *)((char *)__mptr - offsetof(type, member)); })
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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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struct iovec iovs[VHOST_SCSI_IOVS_LEN];
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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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};
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void spdk_vhost_task_put(struct spdk_vhost_task *task);
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void spdk_vhost_task_get(struct spdk_vhost_scsi_dev *svdev, void **tasks, int count,
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spdk_scsi_task_cpl cpl_fn);
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void spdk_vhost_task_cpl(struct spdk_scsi_task *scsi_task);
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void spdk_vhost_task_mgmt_cpl(struct spdk_scsi_task *scsi_task);
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#endif /* SPDK_VHOST_TASK_H */
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