summaryrefslogtreecommitdiffstats
path: root/drivers/net/ark/ark_mpu.c
blob: d4ba6dc70db111512df51eae34d612b40cc0ee39 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
/*-
 * BSD LICENSE
 *
 * Copyright (c) 2015-2017 Atomic Rules LLC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 * * Neither the name of copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <unistd.h>

#include "ark_logs.h"
#include "ark_mpu.h"

uint16_t
ark_api_num_queues(struct ark_mpu_t *mpu)
{
	return mpu->hw.num_queues;
}

uint16_t
ark_api_num_queues_per_port(struct ark_mpu_t *mpu, uint16_t ark_ports)
{
	return mpu->hw.num_queues / ark_ports;
}

int
ark_mpu_verify(struct ark_mpu_t *mpu, uint32_t obj_size)
{
	uint32_t version;

	version = mpu->id.vernum & 0x0000fF00;
	if ((mpu->id.idnum != 0x2055504d) ||
	    (mpu->hw.obj_size != obj_size) ||
	    (version != 0x00003100)) {
		PMD_DRV_LOG(ERR,
			    "   MPU module not found as expected %08x"
			    " \"%c%c%c%c %c%c%c%c\"\n",
			    mpu->id.idnum,
			    mpu->id.id[0], mpu->id.id[1],
			    mpu->id.id[2], mpu->id.id[3],
			    mpu->id.ver[0], mpu->id.ver[1],
			    mpu->id.ver[2], mpu->id.ver[3]);
		PMD_DRV_LOG(ERR,
			    "   MPU HW num_queues: %u hw_depth %u,"
			    " obj_size: %u, obj_per_mrr: %u"
			    " Expected size %u\n",
			    mpu->hw.num_queues,
			    mpu->hw.hw_depth,
			    mpu->hw.obj_size,
			    mpu->hw.obj_per_mrr,
			    obj_size);
		return -1;
	}
	return 0;
}

void
ark_mpu_stop(struct ark_mpu_t *mpu)
{
	mpu->cfg.command = MPU_CMD_STOP;
}

void
ark_mpu_start(struct ark_mpu_t *mpu)
{
	mpu->cfg.command = MPU_CMD_RUN;
}

int
ark_mpu_reset(struct ark_mpu_t *mpu)
{
	int cnt = 0;

	mpu->cfg.command = MPU_CMD_RESET;

	while (mpu->cfg.command != MPU_CMD_IDLE) {
		if (cnt++ > 1000)
			break;
		usleep(10);
	}
	if (mpu->cfg.command != MPU_CMD_IDLE) {
		mpu->cfg.command = MPU_CMD_FORCE_RESET;
		usleep(10);
	}
	ark_mpu_reset_stats(mpu);
	return mpu->cfg.command != MPU_CMD_IDLE;
}

void
ark_mpu_reset_stats(struct ark_mpu_t *mpu)
{
	mpu->stats.pci_request = 1;	/* reset stats */
}

int
ark_mpu_configure(struct ark_mpu_t *mpu, rte_iova_t ring, uint32_t ring_size,
		  int is_tx)
{
	ark_mpu_reset(mpu);

	if (!rte_is_power_of_2(ring_size)) {
		PMD_DRV_LOG(ERR, "ARK: Invalid ring size for MPU %d\n",
			    ring_size);
		return -1;
	}

	mpu->cfg.ring_base = ring;
	mpu->cfg.ring_size = ring_size;
	mpu->cfg.ring_mask = ring_size - 1;
	mpu->cfg.min_host_move = is_tx ? 1 : mpu->hw.obj_per_mrr;
	mpu->cfg.min_hw_move = mpu->hw.obj_per_mrr;
	mpu->cfg.sw_prod_index = 0;
	mpu->cfg.hw_cons_index = 0;
	return 0;
}

void
ark_mpu_dump(struct ark_mpu_t *mpu, const char *code, uint16_t qid)
{
	/* DUMP to see that we have started */
	PMD_DEBUG_LOG(DEBUG, "MPU: %s Q: %3u sw_prod %u, hw_cons: %u\n",
		      code, qid,
		      mpu->cfg.sw_prod_index, mpu->cfg.hw_cons_index);
	PMD_DEBUG_LOG(DEBUG, "MPU: %s state: %d count %d, reserved %d"
		      " data 0x%08x_%08x 0x%08x_%08x\n",
		      code,
		      mpu->debug.state, mpu->debug.count,
		      mpu->debug.reserved,
		      mpu->debug.peek[1],
		      mpu->debug.peek[0],
		      mpu->debug.peek[3],
		      mpu->debug.peek[2]
		      );
	PMD_STATS_LOG(INFO, "MPU: %s Q: %3u"
		      ARK_SU64 ARK_SU64 ARK_SU64 ARK_SU64
		      ARK_SU64 ARK_SU64 ARK_SU64 "\n",
		      code, qid,
		      "PCI Request:", mpu->stats.pci_request,
		      "Queue_empty", mpu->stats.q_empty,
		      "Queue_q1", mpu->stats.q_q1,
		      "Queue_q2", mpu->stats.q_q2,
		      "Queue_q3", mpu->stats.q_q3,
		      "Queue_q4", mpu->stats.q_q4,
		      "Queue_full", mpu->stats.q_full
		      );
}

void
ark_mpu_dump_setup(struct ark_mpu_t *mpu, uint16_t q_id)
{
	PMD_DEBUG_LOG(DEBUG, "MPU Setup Q: %u"
		      ARK_SU64X "\n",
		      q_id,
		      "ring_base", mpu->cfg.ring_base
		      );
}