aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/enic/enic_res.c
blob: 84c5d33614ee943188443c5d12942e613147f40a (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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
/*
 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 *
 * Copyright (c) 2014, Cisco Systems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 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 HOLDER 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 "enic_compat.h"
#include "rte_ethdev.h"
#include "wq_enet_desc.h"
#include "rq_enet_desc.h"
#include "cq_enet_desc.h"
#include "vnic_resource.h"
#include "vnic_enet.h"
#include "vnic_dev.h"
#include "vnic_wq.h"
#include "vnic_rq.h"
#include "vnic_cq.h"
#include "vnic_intr.h"
#include "vnic_stats.h"
#include "vnic_nic.h"
#include "vnic_rss.h"
#include "enic_res.h"
#include "enic.h"

int enic_get_vnic_config(struct enic *enic)
{
	struct vnic_enet_config *c = &enic->config;
	int err;

	err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
	if (err) {
		dev_err(enic_get_dev(enic),
			"Error getting MAC addr, %d\n", err);
		return err;
	}

#define GET_CONFIG(m) \
	do { \
		err = vnic_dev_spec(enic->vdev, \
			offsetof(struct vnic_enet_config, m), \
			sizeof(c->m), &c->m); \
		if (err) { \
			dev_err(enic_get_dev(enic), \
				"Error getting %s, %d\n", #m, err); \
			return err; \
		} \
	} while (0)

	GET_CONFIG(flags);
	GET_CONFIG(wq_desc_count);
	GET_CONFIG(rq_desc_count);
	GET_CONFIG(mtu);
	GET_CONFIG(intr_timer_type);
	GET_CONFIG(intr_mode);
	GET_CONFIG(intr_timer_usec);
	GET_CONFIG(loop_tag);
	GET_CONFIG(num_arfs);
	GET_CONFIG(max_pkt_size);

	/* max packet size is only defined in newer VIC firmware
	 * and will be 0 for legacy firmware and VICs
	 */
	if (c->max_pkt_size > ENIC_DEFAULT_MAX_PKT_SIZE)
		enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4);
	else
		enic->max_mtu = ENIC_DEFAULT_MAX_PKT_SIZE - (ETHER_HDR_LEN + 4);
	if (c->mtu == 0)
		c->mtu = 1500;

	enic->rte_dev->data->mtu = min_t(u16, enic->max_mtu,
					 max_t(u16, ENIC_MIN_MTU, c->mtu));

	c->wq_desc_count =
		min_t(u32, ENIC_MAX_WQ_DESCS,
		max_t(u32, ENIC_MIN_WQ_DESCS,
		c->wq_desc_count));
	c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */

	c->rq_desc_count =
		min_t(u32, ENIC_MAX_RQ_DESCS,
		max_t(u32, ENIC_MIN_RQ_DESCS,
		c->rq_desc_count));
	c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */

	c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
		vnic_dev_get_intr_coal_timer_max(enic->vdev));

	dev_info(enic_get_dev(enic),
		"vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
		"wq/rq %d/%d mtu %d, max mtu:%d\n",
		enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
		enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
		c->wq_desc_count, c->rq_desc_count,
		enic->rte_dev->data->mtu, enic->max_mtu);
	dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
		"rss %s intr mode %s type %s timer %d usec "
		"loopback tag 0x%04x\n",
		ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
		ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
		ENIC_SETTING(enic, RSS) ? "yes" : "no",
		c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
		c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
		c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
		"unknown",
		c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
		c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
		"unknown",
		c->intr_timer_usec,
		c->loop_tag);

	return 0;
}

int enic_add_vlan(struct enic *enic, u16 vlanid)
{
	u64 a0 = vlanid, a1 = 0;
	int wait = 1000;
	int err;

	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
	if (err)
		dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);

	return err;
}

int enic_del_vlan(struct enic *enic, u16 vlanid)
{
	u64 a0 = vlanid, a1 = 0;
	int wait = 1000;
	int err;

	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
	if (err)
		dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);

	return err;
}

int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
	u8 ig_vlan_strip_en)
{
	u64 a0, a1;
	u32 nic_cfg;
	int wait = 1000;

	vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
		rss_hash_type, rss_hash_bits, rss_base_cpu,
		rss_enable, tso_ipid_split_en, ig_vlan_strip_en);

	a0 = nic_cfg;
	a1 = 0;

	return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
}

int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
{
	u64 a0 = (u64)key_pa, a1 = len;
	int wait = 1000;

	return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
}

int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
{
	u64 a0 = (u64)cpu_pa, a1 = len;
	int wait = 1000;

	return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
}

void enic_free_vnic_resources(struct enic *enic)
{
	unsigned int i;

	for (i = 0; i < enic->wq_count; i++)
		vnic_wq_free(&enic->wq[i]);
	for (i = 0; i < enic_vnic_rq_count(enic); i++)
		if (enic->rq[i].in_use)
			vnic_rq_free(&enic->rq[i]);
	for (i = 0; i < enic->cq_count; i++)
		vnic_cq_free(&enic->cq[i]);
	vnic_intr_free(&enic->intr);
}

void enic_get_res_counts(struct enic *enic)
{
	enic->conf_wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
	enic->conf_rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
	enic->conf_cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
	enic->conf_intr_count = vnic_dev_get_res_count(enic->vdev,
		RES_TYPE_INTR_CTRL);

	dev_info(enic_get_dev(enic),
		"vNIC resources avail: wq %d rq %d cq %d intr %d\n",
		enic->conf_wq_count, enic->conf_rq_count,
		enic->conf_cq_count, enic->conf_intr_count);
}