1
2
3
4#include <linux/rtnetlink.h>
5#include <net/devlink.h>
6
7#include "nfpcore/nfp.h"
8#include "nfpcore/nfp_nsp.h"
9#include "nfp_app.h"
10#include "nfp_main.h"
11#include "nfp_port.h"
12
13static int
14nfp_devlink_fill_eth_port(struct nfp_port *port,
15 struct nfp_eth_table_port *copy)
16{
17 struct nfp_eth_table_port *eth_port;
18
19 eth_port = __nfp_port_get_eth_port(port);
20 if (!eth_port)
21 return -EINVAL;
22
23 memcpy(copy, eth_port, sizeof(*eth_port));
24
25 return 0;
26}
27
28static int
29nfp_devlink_fill_eth_port_from_id(struct nfp_pf *pf, unsigned int port_index,
30 struct nfp_eth_table_port *copy)
31{
32 struct nfp_port *port;
33
34 port = nfp_port_from_id(pf, NFP_PORT_PHYS_PORT, port_index);
35
36 return nfp_devlink_fill_eth_port(port, copy);
37}
38
39static int
40nfp_devlink_set_lanes(struct nfp_pf *pf, unsigned int idx, unsigned int lanes)
41{
42 struct nfp_nsp *nsp;
43 int ret;
44
45 nsp = nfp_eth_config_start(pf->cpp, idx);
46 if (IS_ERR(nsp))
47 return PTR_ERR(nsp);
48
49 ret = __nfp_eth_set_split(nsp, lanes);
50 if (ret) {
51 nfp_eth_config_cleanup_end(nsp);
52 return ret;
53 }
54
55 ret = nfp_eth_config_commit_end(nsp);
56 if (ret < 0)
57 return ret;
58 if (ret)
59 return 0;
60
61 return nfp_net_refresh_port_table_sync(pf);
62}
63
64static int
65nfp_devlink_port_split(struct devlink *devlink, unsigned int port_index,
66 unsigned int count, struct netlink_ext_ack *extack)
67{
68 struct nfp_pf *pf = devlink_priv(devlink);
69 struct nfp_eth_table_port eth_port;
70 unsigned int lanes;
71 int ret;
72
73 mutex_lock(&pf->lock);
74
75 rtnl_lock();
76 ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, ð_port);
77 rtnl_unlock();
78 if (ret)
79 goto out;
80
81 if (eth_port.port_lanes % count) {
82 ret = -EINVAL;
83 goto out;
84 }
85
86
87 lanes = eth_port.port_lanes / count;
88 if (eth_port.lanes == 10 && count == 2)
89 lanes = 8 / count;
90
91 ret = nfp_devlink_set_lanes(pf, eth_port.index, lanes);
92out:
93 mutex_unlock(&pf->lock);
94
95 return ret;
96}
97
98static int
99nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index,
100 struct netlink_ext_ack *extack)
101{
102 struct nfp_pf *pf = devlink_priv(devlink);
103 struct nfp_eth_table_port eth_port;
104 unsigned int lanes;
105 int ret;
106
107 mutex_lock(&pf->lock);
108
109 rtnl_lock();
110 ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, ð_port);
111 rtnl_unlock();
112 if (ret)
113 goto out;
114
115 if (!eth_port.is_split) {
116 ret = -EINVAL;
117 goto out;
118 }
119
120
121 lanes = eth_port.port_lanes;
122 if (eth_port.port_lanes == 8)
123 lanes = 10;
124
125 ret = nfp_devlink_set_lanes(pf, eth_port.index, lanes);
126out:
127 mutex_unlock(&pf->lock);
128
129 return ret;
130}
131
132static int
133nfp_devlink_sb_pool_get(struct devlink *devlink, unsigned int sb_index,
134 u16 pool_index, struct devlink_sb_pool_info *pool_info)
135{
136 struct nfp_pf *pf = devlink_priv(devlink);
137
138 return nfp_shared_buf_pool_get(pf, sb_index, pool_index, pool_info);
139}
140
141static int
142nfp_devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index,
143 u16 pool_index,
144 u32 size, enum devlink_sb_threshold_type threshold_type,
145 struct netlink_ext_ack *extack)
146{
147 struct nfp_pf *pf = devlink_priv(devlink);
148
149 return nfp_shared_buf_pool_set(pf, sb_index, pool_index,
150 size, threshold_type);
151}
152
153static int nfp_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
154{
155 struct nfp_pf *pf = devlink_priv(devlink);
156
157 return nfp_app_eswitch_mode_get(pf->app, mode);
158}
159
160static int nfp_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
161 struct netlink_ext_ack *extack)
162{
163 struct nfp_pf *pf = devlink_priv(devlink);
164 int ret;
165
166 mutex_lock(&pf->lock);
167 ret = nfp_app_eswitch_mode_set(pf->app, mode);
168 mutex_unlock(&pf->lock);
169
170 return ret;
171}
172
173static const struct nfp_devlink_versions_simple {
174 const char *key;
175 const char *hwinfo;
176} nfp_devlink_versions_hwinfo[] = {
177 { DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, "assembly.partno", },
178 { DEVLINK_INFO_VERSION_GENERIC_BOARD_REV, "assembly.revision", },
179 { DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE, "assembly.vendor", },
180 { "board.model", "assembly.model", },
181};
182
183static int
184nfp_devlink_versions_get_hwinfo(struct nfp_pf *pf, struct devlink_info_req *req)
185{
186 unsigned int i;
187 int err;
188
189 for (i = 0; i < ARRAY_SIZE(nfp_devlink_versions_hwinfo); i++) {
190 const struct nfp_devlink_versions_simple *info;
191 const char *val;
192
193 info = &nfp_devlink_versions_hwinfo[i];
194
195 val = nfp_hwinfo_lookup(pf->hwinfo, info->hwinfo);
196 if (!val)
197 continue;
198
199 err = devlink_info_version_fixed_put(req, info->key, val);
200 if (err)
201 return err;
202 }
203
204 return 0;
205}
206
207static const struct nfp_devlink_versions {
208 enum nfp_nsp_versions id;
209 const char *key;
210} nfp_devlink_versions_nsp[] = {
211 { NFP_VERSIONS_BUNDLE, DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID, },
212 { NFP_VERSIONS_BSP, DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, },
213 { NFP_VERSIONS_CPLD, "fw.cpld", },
214 { NFP_VERSIONS_APP, DEVLINK_INFO_VERSION_GENERIC_FW_APP, },
215 { NFP_VERSIONS_UNDI, DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, },
216 { NFP_VERSIONS_NCSI, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, },
217 { NFP_VERSIONS_CFGR, "chip.init", },
218};
219
220static int
221nfp_devlink_versions_get_nsp(struct devlink_info_req *req, bool flash,
222 const u8 *buf, unsigned int size)
223{
224 unsigned int i;
225 int err;
226
227 for (i = 0; i < ARRAY_SIZE(nfp_devlink_versions_nsp); i++) {
228 const struct nfp_devlink_versions *info;
229 const char *version;
230
231 info = &nfp_devlink_versions_nsp[i];
232
233 version = nfp_nsp_versions_get(info->id, flash, buf, size);
234 if (IS_ERR(version)) {
235 if (PTR_ERR(version) == -ENOENT)
236 continue;
237 else
238 return PTR_ERR(version);
239 }
240
241 if (flash)
242 err = devlink_info_version_stored_put(req, info->key,
243 version);
244 else
245 err = devlink_info_version_running_put(req, info->key,
246 version);
247 if (err)
248 return err;
249 }
250
251 return 0;
252}
253
254static int
255nfp_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
256 struct netlink_ext_ack *extack)
257{
258 struct nfp_pf *pf = devlink_priv(devlink);
259 const char *sn, *vendor, *part;
260 struct nfp_nsp *nsp;
261 char *buf = NULL;
262 int err;
263
264 err = devlink_info_driver_name_put(req, "nfp");
265 if (err)
266 return err;
267
268 vendor = nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor");
269 part = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno");
270 sn = nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial");
271 if (vendor && part && sn) {
272 char *buf;
273
274 buf = kmalloc(strlen(vendor) + strlen(part) + strlen(sn) + 1,
275 GFP_KERNEL);
276 if (!buf)
277 return -ENOMEM;
278
279 buf[0] = '\0';
280 strcat(buf, vendor);
281 strcat(buf, part);
282 strcat(buf, sn);
283
284 err = devlink_info_serial_number_put(req, buf);
285 kfree(buf);
286 if (err)
287 return err;
288 }
289
290 nsp = nfp_nsp_open(pf->cpp);
291 if (IS_ERR(nsp)) {
292 NL_SET_ERR_MSG_MOD(extack, "can't access NSP");
293 return PTR_ERR(nsp);
294 }
295
296 if (nfp_nsp_has_versions(nsp)) {
297 buf = kzalloc(NFP_NSP_VERSION_BUFSZ, GFP_KERNEL);
298 if (!buf) {
299 err = -ENOMEM;
300 goto err_close_nsp;
301 }
302
303 err = nfp_nsp_versions(nsp, buf, NFP_NSP_VERSION_BUFSZ);
304 if (err)
305 goto err_free_buf;
306
307 err = nfp_devlink_versions_get_nsp(req, false,
308 buf, NFP_NSP_VERSION_BUFSZ);
309 if (err)
310 goto err_free_buf;
311
312 err = nfp_devlink_versions_get_nsp(req, true,
313 buf, NFP_NSP_VERSION_BUFSZ);
314 if (err)
315 goto err_free_buf;
316
317 kfree(buf);
318 }
319
320 nfp_nsp_close(nsp);
321
322 return nfp_devlink_versions_get_hwinfo(pf, req);
323
324err_free_buf:
325 kfree(buf);
326err_close_nsp:
327 nfp_nsp_close(nsp);
328 return err;
329}
330
331static int
332nfp_devlink_flash_update(struct devlink *devlink,
333 struct devlink_flash_update_params *params,
334 struct netlink_ext_ack *extack)
335{
336 return nfp_flash_update_common(devlink_priv(devlink), params->fw, extack);
337}
338
339const struct devlink_ops nfp_devlink_ops = {
340 .port_split = nfp_devlink_port_split,
341 .port_unsplit = nfp_devlink_port_unsplit,
342 .sb_pool_get = nfp_devlink_sb_pool_get,
343 .sb_pool_set = nfp_devlink_sb_pool_set,
344 .eswitch_mode_get = nfp_devlink_eswitch_mode_get,
345 .eswitch_mode_set = nfp_devlink_eswitch_mode_set,
346 .info_get = nfp_devlink_info_get,
347 .flash_update = nfp_devlink_flash_update,
348};
349
350int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
351{
352 struct devlink_port_attrs attrs = {};
353 struct nfp_eth_table_port eth_port;
354 struct devlink *devlink;
355 const u8 *serial;
356 int serial_len;
357 int ret;
358
359 rtnl_lock();
360 ret = nfp_devlink_fill_eth_port(port, ð_port);
361 rtnl_unlock();
362 if (ret)
363 return ret;
364
365 attrs.split = eth_port.is_split;
366 attrs.splittable = !attrs.split;
367 attrs.lanes = eth_port.port_lanes;
368 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
369 attrs.phys.port_number = eth_port.label_port;
370 attrs.phys.split_subport_number = eth_port.label_subport;
371 serial_len = nfp_cpp_serial(port->app->cpp, &serial);
372 memcpy(attrs.switch_id.id, serial, serial_len);
373 attrs.switch_id.id_len = serial_len;
374 devlink_port_attrs_set(&port->dl_port, &attrs);
375
376 devlink = priv_to_devlink(app->pf);
377
378 return devlink_port_register(devlink, &port->dl_port, port->eth_id);
379}
380
381void nfp_devlink_port_unregister(struct nfp_port *port)
382{
383 devlink_port_unregister(&port->dl_port);
384}
385
386void nfp_devlink_port_type_eth_set(struct nfp_port *port)
387{
388 devlink_port_type_eth_set(&port->dl_port, port->netdev);
389}
390
391void nfp_devlink_port_type_clear(struct nfp_port *port)
392{
393 devlink_port_type_clear(&port->dl_port);
394}
395
396struct devlink_port *nfp_devlink_get_devlink_port(struct net_device *netdev)
397{
398 struct nfp_port *port;
399
400 port = nfp_port_from_netdev(netdev);
401 if (!port)
402 return NULL;
403
404 return &port->dl_port;
405}
406
