1
2
3
4
5#include <rte_common.h>
6#include <ethdev_pci.h>
7
8#include "otx2_ethdev.h"
9
10void
11otx2_nix_toggle_flag_link_cfg(struct otx2_eth_dev *dev, bool set)
12{
13 if (set)
14 dev->flags |= OTX2_LINK_CFG_IN_PROGRESS_F;
15 else
16 dev->flags &= ~OTX2_LINK_CFG_IN_PROGRESS_F;
17
18 rte_wmb();
19}
20
21static inline int
22nix_wait_for_link_cfg(struct otx2_eth_dev *dev)
23{
24 uint16_t wait = 1000;
25
26 do {
27 rte_rmb();
28 if (!(dev->flags & OTX2_LINK_CFG_IN_PROGRESS_F))
29 break;
30 wait--;
31 rte_delay_ms(1);
32 } while (wait);
33
34 return wait ? 0 : -1;
35}
36
37static void
38nix_link_status_print(struct rte_eth_dev *eth_dev, struct rte_eth_link *link)
39{
40 if (link && link->link_status)
41 otx2_info("Port %d: Link Up - speed %u Mbps - %s",
42 (int)(eth_dev->data->port_id),
43 (uint32_t)link->link_speed,
44 link->link_duplex == ETH_LINK_FULL_DUPLEX ?
45 "full-duplex" : "half-duplex");
46 else
47 otx2_info("Port %d: Link Down", (int)(eth_dev->data->port_id));
48}
49
50void
51otx2_eth_dev_link_status_update(struct otx2_dev *dev,
52 struct cgx_link_user_info *link)
53{
54 struct otx2_eth_dev *otx2_dev = (struct otx2_eth_dev *)dev;
55 struct rte_eth_link eth_link;
56 struct rte_eth_dev *eth_dev;
57
58 if (!link || !dev)
59 return;
60
61 eth_dev = otx2_dev->eth_dev;
62 if (!eth_dev || !eth_dev->data->dev_conf.intr_conf.lsc)
63 return;
64
65 if (nix_wait_for_link_cfg(otx2_dev)) {
66 otx2_err("Timeout waiting for link_cfg to complete");
67 return;
68 }
69
70 eth_link.link_status = link->link_up;
71 eth_link.link_speed = link->speed;
72 eth_link.link_autoneg = ETH_LINK_AUTONEG;
73 eth_link.link_duplex = link->full_duplex;
74
75 otx2_dev->speed = link->speed;
76 otx2_dev->duplex = link->full_duplex;
77
78
79 nix_link_status_print(eth_dev, ð_link);
80
81
82 rte_eth_linkstatus_set(eth_dev, ð_link);
83
84
85 rte_eth_dev_callback_process(eth_dev, RTE_ETH_EVENT_INTR_LSC, NULL);
86}
87
88static int
89lbk_link_update(struct rte_eth_link *link)
90{
91 link->link_status = ETH_LINK_UP;
92 link->link_speed = ETH_SPEED_NUM_100G;
93 link->link_autoneg = ETH_LINK_FIXED;
94 link->link_duplex = ETH_LINK_FULL_DUPLEX;
95 return 0;
96}
97
98static int
99cgx_link_update(struct otx2_eth_dev *dev, struct rte_eth_link *link)
100{
101 struct otx2_mbox *mbox = dev->mbox;
102 struct cgx_link_info_msg *rsp;
103 int rc;
104 otx2_mbox_alloc_msg_cgx_get_linkinfo(mbox);
105 rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
106 if (rc)
107 return rc;
108
109 link->link_status = rsp->link_info.link_up;
110 link->link_speed = rsp->link_info.speed;
111 link->link_autoneg = ETH_LINK_AUTONEG;
112
113 if (rsp->link_info.full_duplex)
114 link->link_duplex = rsp->link_info.full_duplex;
115 return 0;
116}
117
118int
119otx2_nix_link_update(struct rte_eth_dev *eth_dev, int wait_to_complete)
120{
121 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
122 struct rte_eth_link link;
123 int rc;
124
125 RTE_SET_USED(wait_to_complete);
126 memset(&link, 0, sizeof(struct rte_eth_link));
127
128 if (otx2_dev_is_sdp(dev))
129 return 0;
130
131 if (otx2_dev_is_lbk(dev))
132 rc = lbk_link_update(&link);
133 else
134 rc = cgx_link_update(dev, &link);
135
136 if (rc)
137 return rc;
138
139 return rte_eth_linkstatus_set(eth_dev, &link);
140}
141
142static int
143nix_dev_set_link_state(struct rte_eth_dev *eth_dev, uint8_t enable)
144{
145 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
146 struct otx2_mbox *mbox = dev->mbox;
147 struct cgx_set_link_state_msg *req;
148
149 req = otx2_mbox_alloc_msg_cgx_set_link_state(mbox);
150 req->enable = enable;
151 return otx2_mbox_process(mbox);
152}
153
154int
155otx2_nix_dev_set_link_up(struct rte_eth_dev *eth_dev)
156{
157 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
158 int rc, i;
159
160 if (otx2_dev_is_vf_or_sdp(dev))
161 return -ENOTSUP;
162
163 rc = nix_dev_set_link_state(eth_dev, 1);
164 if (rc)
165 goto done;
166
167
168 for (i = 0; i < eth_dev->data->nb_tx_queues; i++)
169 otx2_nix_tx_queue_start(eth_dev, i);
170
171done:
172 return rc;
173}
174
175int
176otx2_nix_dev_set_link_down(struct rte_eth_dev *eth_dev)
177{
178 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
179 int i;
180
181 if (otx2_dev_is_vf_or_sdp(dev))
182 return -ENOTSUP;
183
184
185 for (i = 0; i < eth_dev->data->nb_tx_queues; i++)
186 otx2_nix_tx_queue_stop(eth_dev, i);
187
188 return nix_dev_set_link_state(eth_dev, 0);
189}
190
191static int
192cgx_change_mode(struct otx2_eth_dev *dev, struct cgx_set_link_mode_args *cfg)
193{
194 struct otx2_mbox *mbox = dev->mbox;
195 struct cgx_set_link_mode_req *req;
196
197 req = otx2_mbox_alloc_msg_cgx_set_link_mode(mbox);
198 req->args.speed = cfg->speed;
199 req->args.duplex = cfg->duplex;
200 req->args.an = cfg->an;
201
202 return otx2_mbox_process(mbox);
203}
204
205#define SPEED_NONE 0
206static inline uint32_t
207nix_parse_link_speeds(struct otx2_eth_dev *dev, uint32_t link_speeds)
208{
209 uint32_t link_speed = SPEED_NONE;
210
211
212 if (!otx2_dev_is_Ax(dev)) {
213 if (link_speeds & ETH_LINK_SPEED_100G)
214 link_speed = 100000;
215 if (link_speeds & ETH_LINK_SPEED_50G)
216 link_speed = 50000;
217 }
218 if (link_speeds & ETH_LINK_SPEED_40G)
219 link_speed = 40000;
220 if (link_speeds & ETH_LINK_SPEED_25G)
221 link_speed = 25000;
222 if (link_speeds & ETH_LINK_SPEED_20G)
223 link_speed = 20000;
224 if (link_speeds & ETH_LINK_SPEED_10G)
225 link_speed = 10000;
226 if (link_speeds & ETH_LINK_SPEED_5G)
227 link_speed = 5000;
228 if (link_speeds & ETH_LINK_SPEED_1G)
229 link_speed = 1000;
230
231 return link_speed;
232}
233
234static inline uint8_t
235nix_parse_eth_link_duplex(uint32_t link_speeds)
236{
237 if ((link_speeds & ETH_LINK_SPEED_10M_HD) ||
238 (link_speeds & ETH_LINK_SPEED_100M_HD))
239 return ETH_LINK_HALF_DUPLEX;
240 else
241 return ETH_LINK_FULL_DUPLEX;
242}
243
244int
245otx2_apply_link_speed(struct rte_eth_dev *eth_dev)
246{
247 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
248 struct rte_eth_conf *conf = ð_dev->data->dev_conf;
249 struct cgx_set_link_mode_args cfg;
250
251
252 if (otx2_dev_is_vf_or_sdp(dev) || otx2_dev_is_lbk(dev))
253 return 0;
254
255 memset(&cfg, 0, sizeof(struct cgx_set_link_mode_args));
256 cfg.speed = nix_parse_link_speeds(dev, conf->link_speeds);
257 if (cfg.speed != SPEED_NONE && cfg.speed != dev->speed) {
258 cfg.duplex = nix_parse_eth_link_duplex(conf->link_speeds);
259 cfg.an = (conf->link_speeds & ETH_LINK_SPEED_FIXED) == 0;
260
261 return cgx_change_mode(dev, &cfg);
262 }
263 return 0;
264}
265
