xref: /freebsd/sys/dev/ocs_fc/ocs_hw_queues.h (revision 4d846d26)
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__ */
97