The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ocs_fc/ocs_hw_queues.h

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    1 /*-
    2  * Copyright (c) 2017 Broadcom. All rights reserved.
    3  * The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions are met:
    7  *
    8  * 1. Redistributions of source code must retain the above copyright notice,
    9  *    this list of conditions and the following disclaimer.
   10  *
   11  * 2. Redistributions in binary form must reproduce the above copyright notice,
   12  *    this list of conditions and the following disclaimer in the documentation
   13  *    and/or other materials provided with the distribution.
   14  *
   15  * 3. Neither the name of the copyright holder nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
   23  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  *
   31  * $FreeBSD$
   32  */
   33 
   34 /**
   35  * @file
   36  *
   37  */
   38 
   39 #ifndef __OCS_HW_QUEUES_H__
   40 #define __OCS_HW_QUEUES_H__
   41 
   42 #define OCS_HW_MQ_DEPTH 128
   43 
   44 typedef enum {
   45         QTOP_EQ = 0,
   46         QTOP_CQ,
   47         QTOP_WQ,
   48         QTOP_RQ,
   49         QTOP_MQ,
   50         QTOP_LAST,
   51 } ocs_hw_qtop_entry_e;
   52 
   53 typedef struct {
   54         ocs_hw_qtop_entry_e entry;
   55         uint8_t set_default;
   56         uint32_t len;
   57         uint8_t class;
   58         uint8_t ulp;
   59         uint8_t filter_mask;
   60 } ocs_hw_qtop_entry_t;
   61 
   62 typedef struct {
   63         struct rq_config {
   64                 hw_eq_t *eq;
   65                 uint32_t len;
   66                 uint8_t class;
   67                 uint8_t ulp;
   68                 uint8_t filter_mask;
   69         } rq_cfg[16];
   70         uint32_t num_pairs;
   71 } ocs_hw_mrq_t;
   72 
   73 #define MAX_TOKENS                      256
   74 #define OCS_HW_MAX_QTOP_ENTRIES 200
   75 
   76 typedef struct {
   77         ocs_os_handle_t os;
   78         ocs_hw_qtop_entry_t *entries;
   79         uint32_t alloc_count;
   80         uint32_t inuse_count;
   81         uint32_t entry_counts[QTOP_LAST];
   82         uint32_t rptcount[10];
   83         uint32_t rptcount_idx;
   84 } ocs_hw_qtop_t;
   85 
   86 extern ocs_hw_qtop_t *ocs_hw_qtop_parse(ocs_hw_t *hw, const char *qtop_string);
   87 extern void ocs_hw_qtop_free(ocs_hw_qtop_t *qtop);
   88 extern const char *ocs_hw_qtop_entry_name(ocs_hw_qtop_entry_e entry);
   89 extern uint32_t ocs_hw_qtop_eq_count(ocs_hw_t *hw);
   90 
   91 extern ocs_hw_rtn_e ocs_hw_init_queues(ocs_hw_t *hw, ocs_hw_qtop_t *qtop);
   92 extern void hw_thread_eq_handler(ocs_hw_t *hw, hw_eq_t *eq, uint32_t max_isr_time_msec);
   93 extern void hw_thread_cq_handler(ocs_hw_t *hw, hw_cq_t *cq);
   94 extern  hw_wq_t *ocs_hw_queue_next_wq(ocs_hw_t *hw, ocs_hw_io_t *io);
   95 
   96 #endif /* __OCS_HW_QUEUES_H__ */

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