1/*
2 * Copyright 2008-2010 Cisco Systems, Inc.  All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
4 *
5 * Copyright (c) 2014, Cisco Systems, Inc.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 */
34
35#include "enic_compat.h"
36#include "rte_ethdev.h"
37#include "wq_enet_desc.h"
38#include "rq_enet_desc.h"
39#include "cq_enet_desc.h"
40#include "vnic_resource.h"
41#include "vnic_enet.h"
42#include "vnic_dev.h"
43#include "vnic_wq.h"
44#include "vnic_rq.h"
45#include "vnic_cq.h"
46#include "vnic_intr.h"
47#include "vnic_stats.h"
48#include "vnic_nic.h"
49#include "vnic_rss.h"
50#include "enic_res.h"
51#include "enic.h"
52
53int enic_get_vnic_config(struct enic *enic)
54{
55	struct vnic_enet_config *c = &enic->config;
56	int err;
57
58	err = vnic_dev_get_mac_addr(enic->vdev, enic->mac_addr);
59	if (err) {
60		dev_err(enic_get_dev(enic),
61			"Error getting MAC addr, %d\n", err);
62		return err;
63	}
64
65
66#define GET_CONFIG(m) \
67	do { \
68		err = vnic_dev_spec(enic->vdev, \
69			offsetof(struct vnic_enet_config, m), \
70			sizeof(c->m), &c->m); \
71		if (err) { \
72			dev_err(enic_get_dev(enic), \
73				"Error getting %s, %d\n", #m, err); \
74			return err; \
75		} \
76	} while (0)
77
78	GET_CONFIG(flags);
79	GET_CONFIG(wq_desc_count);
80	GET_CONFIG(rq_desc_count);
81	GET_CONFIG(mtu);
82	GET_CONFIG(intr_timer_type);
83	GET_CONFIG(intr_mode);
84	GET_CONFIG(intr_timer_usec);
85	GET_CONFIG(loop_tag);
86	GET_CONFIG(num_arfs);
87	GET_CONFIG(max_pkt_size);
88
89	/* max packet size is only defined in newer VIC firmware
90	 * and will be 0 for legacy firmware and VICs
91	 */
92	if (c->max_pkt_size > ENIC_DEFAULT_RX_MAX_PKT_SIZE)
93		enic->max_mtu = c->max_pkt_size - (ETHER_HDR_LEN + 4);
94	else
95		enic->max_mtu = ENIC_DEFAULT_RX_MAX_PKT_SIZE
96				- (ETHER_HDR_LEN + 4);
97	if (c->mtu == 0)
98		c->mtu = 1500;
99
100	enic->rte_dev->data->mtu = min_t(u16, enic->max_mtu,
101					 max_t(u16, ENIC_MIN_MTU, c->mtu));
102
103	enic->adv_filters = vnic_dev_capable_adv_filters(enic->vdev);
104	dev_info(enic, "Advanced Filters %savailable\n", ((enic->adv_filters)
105		 ? "" : "not "));
106
107	c->wq_desc_count =
108		min_t(u32, ENIC_MAX_WQ_DESCS,
109		max_t(u32, ENIC_MIN_WQ_DESCS,
110		c->wq_desc_count));
111	c->wq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
112
113	c->rq_desc_count =
114		min_t(u32, ENIC_MAX_RQ_DESCS,
115		max_t(u32, ENIC_MIN_RQ_DESCS,
116		c->rq_desc_count));
117	c->rq_desc_count &= 0xffffffe0; /* must be aligned to groups of 32 */
118
119	c->intr_timer_usec = min_t(u32, c->intr_timer_usec,
120		vnic_dev_get_intr_coal_timer_max(enic->vdev));
121
122	dev_info(enic_get_dev(enic),
123		"vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
124		"wq/rq %d/%d mtu %d, max mtu:%d\n",
125		enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
126		enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
127		c->wq_desc_count, c->rq_desc_count,
128		enic->rte_dev->data->mtu, enic->max_mtu);
129	dev_info(enic_get_dev(enic), "vNIC csum tx/rx %s/%s "
130		"rss %s intr mode %s type %s timer %d usec "
131		"loopback tag 0x%04x\n",
132		ENIC_SETTING(enic, TXCSUM) ? "yes" : "no",
133		ENIC_SETTING(enic, RXCSUM) ? "yes" : "no",
134		ENIC_SETTING(enic, RSS) ? "yes" : "no",
135		c->intr_mode == VENET_INTR_MODE_INTX ? "INTx" :
136		c->intr_mode == VENET_INTR_MODE_MSI ? "MSI" :
137		c->intr_mode == VENET_INTR_MODE_ANY ? "any" :
138		"unknown",
139		c->intr_timer_type == VENET_INTR_TYPE_MIN ? "min" :
140		c->intr_timer_type == VENET_INTR_TYPE_IDLE ? "idle" :
141		"unknown",
142		c->intr_timer_usec,
143		c->loop_tag);
144
145	return 0;
146}
147
148int enic_add_vlan(struct enic *enic, u16 vlanid)
149{
150	u64 a0 = vlanid, a1 = 0;
151	int wait = 1000;
152	int err;
153
154	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
155	if (err)
156		dev_err(enic_get_dev(enic), "Can't add vlan id, %d\n", err);
157
158	return err;
159}
160
161int enic_del_vlan(struct enic *enic, u16 vlanid)
162{
163	u64 a0 = vlanid, a1 = 0;
164	int wait = 1000;
165	int err;
166
167	err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
168	if (err)
169		dev_err(enic_get_dev(enic), "Can't delete vlan id, %d\n", err);
170
171	return err;
172}
173
174int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
175	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
176	u8 ig_vlan_strip_en)
177{
178	u64 a0, a1;
179	u32 nic_cfg;
180	int wait = 1000;
181
182	vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
183		rss_hash_type, rss_hash_bits, rss_base_cpu,
184		rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
185
186	a0 = nic_cfg;
187	a1 = 0;
188
189	return vnic_dev_cmd(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
190}
191
192int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len)
193{
194	u64 a0 = (u64)key_pa, a1 = len;
195	int wait = 1000;
196
197	return vnic_dev_cmd(enic->vdev, CMD_RSS_KEY, &a0, &a1, wait);
198}
199
200int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len)
201{
202	u64 a0 = (u64)cpu_pa, a1 = len;
203	int wait = 1000;
204
205	return vnic_dev_cmd(enic->vdev, CMD_RSS_CPU, &a0, &a1, wait);
206}
207
208void enic_free_vnic_resources(struct enic *enic)
209{
210	unsigned int i;
211
212	for (i = 0; i < enic->wq_count; i++)
213		vnic_wq_free(&enic->wq[i]);
214	for (i = 0; i < enic_vnic_rq_count(enic); i++)
215		if (enic->rq[i].in_use)
216			vnic_rq_free(&enic->rq[i]);
217	for (i = 0; i < enic->cq_count; i++)
218		vnic_cq_free(&enic->cq[i]);
219	vnic_intr_free(&enic->intr);
220}
221
222void enic_get_res_counts(struct enic *enic)
223{
224	enic->conf_wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
225	enic->conf_rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
226	enic->conf_cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
227	enic->conf_intr_count = vnic_dev_get_res_count(enic->vdev,
228		RES_TYPE_INTR_CTRL);
229
230	dev_info(enic_get_dev(enic),
231		"vNIC resources avail: wq %d rq %d cq %d intr %d\n",
232		enic->conf_wq_count, enic->conf_rq_count,
233		enic->conf_cq_count, enic->conf_intr_count);
234}
235