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1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2013-2016 Qlogic Corporation
5  * All rights reserved.
6  *
7  *  Redistribution and use in source and binary forms, with or without
8  *  modification, are permitted provided that the following conditions
9  *  are met:
10  *
11  *  1. Redistributions of source code must retain the above copyright
12  *     notice, this list of conditions and the following disclaimer.
13  *  2. Redistributions in binary form must reproduce the above copyright
14  *     notice, this list of conditions and the following disclaimer in the
15  *     documentation and/or other materials provided with the distribution.
16  *
17  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27  *  POSSIBILITY OF SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 /*
32  * File: ql_inline.h
33  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
34  */
35 #ifndef _QL_INLINE_H_
36 #define _QL_INLINE_H_
37
38
39 #define QL8_SEMLOCK_TIMEOUT     1000/* QLA8020 Semaphore Lock Timeout 10ms */
40
41
42 /*
43  * Inline functions for hardware semaphores
44  */
45
46 /*
47  * Name:        qla_sem_lock
48  * Function:    Locks one of the semaphore registers (semaphore 2,3,5 & 7)
49  *              If the id_reg is valid, then id_val is written into it.
50  *              This is for debugging purpose
51  * Returns:     0 on success; otherwise its failed.
52  */
53 static __inline int
54 qla_sem_lock(qla_host_t *ha, uint32_t sem_reg, uint32_t id_reg, uint32_t id_val)
55 {
56         int count = QL8_SEMLOCK_TIMEOUT;
57
58         while (count) {
59                 if ((READ_REG32(ha, sem_reg) & BIT_0))
60                         break;
61                 count--;
62
63                 if (!count)
64                         return(-1);
65                 qla_mdelay(__func__, 10);
66         }
67         if (id_reg)
68                 WRITE_REG32(ha, id_reg, id_val);
69
70         return(0);
71 }
72
73 /*
74  * Name:        qla_sem_unlock
75  * Function:    Unlocks the semaphore registers (semaphore 2,3,5 & 7)
76  *              previously locked by qla_sem_lock()
77  */
78 static __inline void
79 qla_sem_unlock(qla_host_t *ha, uint32_t sem_reg)
80 {
81         READ_REG32(ha, sem_reg);
82 }
83
84 static __inline int
85 qla_get_ifq_snd_maxlen(qla_host_t *ha)
86 {
87         return(((NUM_TX_DESCRIPTORS * 4) - 1));
88 }
89
90 static __inline uint32_t
91 qla_get_optics(qla_host_t *ha)
92 {
93         uint32_t link_speed;
94
95         link_speed = READ_REG32(ha, Q8_LINK_SPEED_0);
96         if (ha->pci_func == 0)
97                 link_speed = link_speed & 0xFF;
98         else
99                 link_speed = (link_speed >> 8) & 0xFF;
100
101         switch (link_speed) {
102         case 0x1:
103                 link_speed = IFM_100_FX;
104                 break;
105
106         case 0x10:
107                 link_speed = IFM_1000_SX;
108                 break;
109
110         default:
111                 if ((ha->hw.module_type == 0x4) ||
112                         (ha->hw.module_type == 0x5) ||
113                         (ha->hw.module_type == 0x6))
114                         link_speed = (IFM_10G_TWINAX);
115                 else
116                         link_speed = (IFM_10G_LR | IFM_10G_SR);
117                 break;
118         }
119
120         return(link_speed);
121 }
122
123 static __inline uint8_t *
124 qla_get_mac_addr(qla_host_t *ha)
125 {
126         return (ha->hw.mac_addr);
127 }
128
129 static __inline void
130 qla_set_hw_rcv_desc(qla_host_t *ha, uint32_t r_idx, uint32_t index,
131         uint32_t handle, bus_addr_t paddr, uint32_t buf_size)
132 {
133         volatile q80_recv_desc_t *rcv_desc;
134
135         rcv_desc = (q80_recv_desc_t *)ha->hw.dma_buf.rds_ring[r_idx].dma_b;
136
137         rcv_desc += index;
138
139         rcv_desc->handle = (uint16_t)handle;
140         rcv_desc->buf_size = buf_size;
141         rcv_desc->buf_addr = paddr;
142
143         return;
144 }
145
146 static __inline void
147 qla_init_hw_rcv_descriptors(qla_host_t *ha)
148 {
149         int i;
150
151         for (i = 0; i < ha->hw.num_rds_rings; i++) 
152                 bzero((void *)ha->hw.dma_buf.rds_ring[i].dma_b,
153                         (sizeof(q80_recv_desc_t) * NUM_RX_DESCRIPTORS));
154 }
155
156 #define QLA_LOCK_DEFAULT_MS_TIMEOUT     3000
157
158 #ifndef QLA_LOCK_NO_SLEEP
159 #define QLA_LOCK_NO_SLEEP               0
160 #endif 
161
162 static __inline int
163 qla_lock(qla_host_t *ha, const char *str, uint32_t timeout_ms,
164         uint32_t no_sleep)
165 {
166         int ret = -1;
167
168         while (1) {
169                 mtx_lock(&ha->hw_lock);
170
171                 if (ha->qla_detach_active || ha->offline) {
172                         mtx_unlock(&ha->hw_lock);
173                         break;
174                 }
175
176                 if (!ha->hw_lock_held) {
177                         ha->hw_lock_held = 1;
178                         ha->qla_lock = str;
179                         ret = 0;
180                         mtx_unlock(&ha->hw_lock);
181                         break;
182                 }
183                 mtx_unlock(&ha->hw_lock);
184
185                 if (--timeout_ms == 0) {
186                         ha->hw_lock_failed++;
187                         break;
188                 } else {
189                         if (no_sleep)
190                                 DELAY(1000);
191                         else
192                                 qla_mdelay(__func__, 1);
193                 }
194         }
195
196 //      if (!ha->enable_error_recovery)
197 //              device_printf(ha->pci_dev, "%s: %s ret = %d\n", __func__,
198 //                      str,ret);
199
200         return (ret);
201 }
202
203 static __inline void
204 qla_unlock(qla_host_t *ha, const char *str)
205 {
206         mtx_lock(&ha->hw_lock);
207         ha->hw_lock_held = 0;
208         ha->qla_unlock = str;
209         mtx_unlock(&ha->hw_lock);
210
211 //      if (!ha->enable_error_recovery)
212 //              device_printf(ha->pci_dev, "%s: %s\n", __func__, str);
213
214         return;
215 }
216
217 #endif /* #ifndef _QL_INLINE_H_ */