ioat_test.h

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    1 /*-
    2  * Copyright (C) 2012 Intel Corporation
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 __FBSDID("$FreeBSD$");
   28 
   29 #ifndef __IOAT_TEST_H__
   30 #define __IOAT_TEST_H__
   31 
   32 enum ioat_res {
   33         IOAT_TEST_OK = 0,
   34         IOAT_TEST_NO_DMA_ENGINE,
   35         IOAT_TEST_NO_MEMORY,
   36         IOAT_TEST_MISCOMPARE,
   37         IOAT_TEST_INVALID_INPUT,
   38         IOAT_NUM_RES
   39 };
   40 
   41 enum ioat_test_kind {
   42         IOAT_TEST_FILL = 0,
   43         IOAT_TEST_DMA,
   44         IOAT_TEST_RAW_DMA,
   45         IOAT_TEST_DMA_8K,
   46         IOAT_TEST_MEMCPY,
   47         IOAT_TEST_DMA_8K_PB,
   48         IOAT_TEST_DMA_CRC,
   49         IOAT_TEST_DMA_CRC_COPY,
   50         IOAT_NUM_TESTKINDS
   51 };
   52 
   53 struct test_transaction;
   54 
   55 struct ioat_test {
   56         volatile uint32_t status[IOAT_NUM_RES];
   57         uint32_t channel_index;
   58 
   59         enum ioat_test_kind testkind;
   60 
   61         /* HW max of 1MB */
   62         uint32_t buffer_size;
   63         uint32_t chain_depth;
   64         uint32_t transactions;
   65 
   66         /*
   67          * If non-zero, duration is time in ms;
   68          * If zero, bounded by 'transactions' above.
   69          */
   70         uint32_t duration;
   71 
   72         /* If true, check for miscompares after a copy. */
   73         bool verify;
   74 
   75         /* DMA directly to/from some memory address */
   76         uint64_t raw_target;
   77         void *raw_vtarget;
   78         bool raw_write;
   79         bool raw_is_virtual;
   80 
   81         bool zero_stats;
   82         /* Configure coalesce period */
   83         uint16_t coalesce_period;
   84 
   85         /* Internal usage -- not test inputs */
   86         TAILQ_HEAD(, test_transaction) free_q;
   87         TAILQ_HEAD(, test_transaction) pend_q;
   88         volatile bool too_late;
   89 };
   90 
   91 #define IOAT_DMATEST    _IOWR('i', 0, struct ioat_test)
   92 
   93 #endif /* __IOAT_TEST_H__ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/ioat/ioat_test.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/ioat/ioat_test.h