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 if (count < 2)
74 return -EINVAL;
75
76 mutex_lock(&pf->lock);
77
78 rtnl_lock();
79 ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, ð_port);
80 rtnl_unlock();
81 if (ret)
82 goto out;
83
84 if (eth_port.is_split || eth_port.port_lanes % count) {
85 ret = -EINVAL;
86 goto out;
87 }
88
89
90 lanes = eth_port.port_lanes / count;
91 if (eth_port.lanes == 10 && count == 2)
92 lanes = 8 / count;
93
94 ret = nfp_devlink_set_lanes(pf, eth_port.index, lanes);
95out:
96 mutex_unlock(&pf->lock);
97
98 return ret;
99}
100
101static int
102nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index,
103 struct netlink_ext_ack *extack)
104{
105 struct nfp_pf *pf = devlink_priv(devlink);
106 struct nfp_eth_table_port eth_port;
107 unsigned int lanes;
108 int ret;
109
110 mutex_lock(&pf->lock);
111
112 rtnl_lock();
113 ret = nfp_devlink_fill_eth_port_from_id(pf, port_index, ð_port);
114 rtnl_unlock();
115 if (ret)
116 goto out;
117
118 if (!eth_port.is_split) {
119 ret = -EINVAL;
120 goto out;
121 }
122
123
124 lanes = eth_port.port_lanes;
125 if (eth_port.port_lanes == 8)
126 lanes = 10;
127
128 ret = nfp_devlink_set_lanes(pf, eth_port.index, lanes);
129out:
130 mutex_unlock(&pf->lock);
131
132 return ret;
133}
134
135static int
136nfp_devlink_sb_pool_get(struct devlink *devlink, unsigned int sb_index,
137 u16 pool_index, struct devlink_sb_pool_info *pool_info)
138{
139 struct nfp_pf *pf = devlink_priv(devlink);
140
141 return nfp_shared_buf_pool_get(pf, sb_index, pool_index, pool_info);
142}
143
144static int
145nfp_devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index,
146 u16 pool_index,
147 u32 size, enum devlink_sb_threshold_type threshold_type)
148{
149 struct nfp_pf *pf = devlink_priv(devlink);
150
151 return nfp_shared_buf_pool_set(pf, sb_index, pool_index,
152 size, threshold_type);
153}
154
155static int nfp_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode)
156{
157 struct nfp_pf *pf = devlink_priv(devlink);
158
159 return nfp_app_eswitch_mode_get(pf->app, mode);
160}
161
162static int nfp_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
163 struct netlink_ext_ack *extack)
164{
165 struct nfp_pf *pf = devlink_priv(devlink);
166 int ret;
167
168 mutex_lock(&pf->lock);
169 ret = nfp_app_eswitch_mode_set(pf->app, mode);
170 mutex_unlock(&pf->lock);
171
172 return ret;
173}
174
175static const struct nfp_devlink_versions_simple {
176 const char *key;
177 const char *hwinfo;
178} nfp_devlink_versions_hwinfo[] = {
179 { DEVLINK_INFO_VERSION_GENERIC_BOARD_ID, "assembly.partno", },
180 { DEVLINK_INFO_VERSION_GENERIC_BOARD_REV, "assembly.revision", },
181 { DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE, "assembly.vendor", },
182 { "board.model", "assembly.model", },
183};
184
185static int
186nfp_devlink_versions_get_hwinfo(struct nfp_pf *pf, struct devlink_info_req *req)
187{
188 unsigned int i;
189 int err;
190
191 for (i = 0; i < ARRAY_SIZE(nfp_devlink_versions_hwinfo); i++) {
192 const struct nfp_devlink_versions_simple *info;
193 const char *val;
194
195 info = &nfp_devlink_versions_hwinfo[i];
196
197 val = nfp_hwinfo_lookup(pf->hwinfo, info->hwinfo);
198 if (!val)
199 continue;
200
201 err = devlink_info_version_fixed_put(req, info->key, val);
202 if (err)
203 return err;
204 }
205
206 return 0;
207}
208
209static const struct nfp_devlink_versions {
210 enum nfp_nsp_versions id;
211 const char *key;
212} nfp_devlink_versions_nsp[] = {
213 { NFP_VERSIONS_BUNDLE, "fw.bundle_id", },
214 { NFP_VERSIONS_BSP, DEVLINK_INFO_VERSION_GENERIC_FW_MGMT, },
215 { NFP_VERSIONS_CPLD, "fw.cpld", },
216 { NFP_VERSIONS_APP, DEVLINK_INFO_VERSION_GENERIC_FW_APP, },
217 { NFP_VERSIONS_UNDI, DEVLINK_INFO_VERSION_GENERIC_FW_UNDI, },
218 { NFP_VERSIONS_NCSI, DEVLINK_INFO_VERSION_GENERIC_FW_NCSI, },
219 { NFP_VERSIONS_CFGR, "chip.init", },
220};
221
222static int
223nfp_devlink_versions_get_nsp(struct devlink_info_req *req, bool flash,
224 const u8 *buf, unsigned int size)
225{
226 unsigned int i;
227 int err;
228
229 for (i = 0; i < ARRAY_SIZE(nfp_devlink_versions_nsp); i++) {
230 const struct nfp_devlink_versions *info;
231 const char *version;
232
233 info = &nfp_devlink_versions_nsp[i];
234
235 version = nfp_nsp_versions_get(info->id, flash, buf, size);
236 if (IS_ERR(version)) {
237 if (PTR_ERR(version) == -ENOENT)
238 continue;
239 else
240 return PTR_ERR(version);
241 }
242
243 if (flash)
244 err = devlink_info_version_stored_put(req, info->key,
245 version);
246 else
247 err = devlink_info_version_running_put(req, info->key,
248 version);
249 if (err)
250 return err;
251 }
252
253 return 0;
254}
255
256static int
257nfp_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
258 struct netlink_ext_ack *extack)
259{
260 struct nfp_pf *pf = devlink_priv(devlink);
261 const char *sn, *vendor, *part;
262 struct nfp_nsp *nsp;
263 char *buf = NULL;
264 int err;
265
266 err = devlink_info_driver_name_put(req, "nfp");
267 if (err)
268 return err;
269
270 vendor = nfp_hwinfo_lookup(pf->hwinfo, "assembly.vendor");
271 part = nfp_hwinfo_lookup(pf->hwinfo, "assembly.partno");
272 sn = nfp_hwinfo_lookup(pf->hwinfo, "assembly.serial");
273 if (vendor && part && sn) {
274 char *buf;
275
276 buf = kmalloc(strlen(vendor) + strlen(part) + strlen(sn) + 1,
277 GFP_KERNEL);
278 if (!buf)
279 return -ENOMEM;
280
281 buf[0] = '\0';
282 strcat(buf, vendor);
283 strcat(buf, part);
284 strcat(buf, sn);
285
286 err = devlink_info_serial_number_put(req, buf);
287 kfree(buf);
288 if (err)
289 return err;
290 }
291
292 nsp = nfp_nsp_open(pf->cpp);
293 if (IS_ERR(nsp)) {
294 NL_SET_ERR_MSG_MOD(extack, "can't access NSP");
295 return PTR_ERR(nsp);
296 }
297
298 if (nfp_nsp_has_versions(nsp)) {
299 buf = kzalloc(NFP_NSP_VERSION_BUFSZ, GFP_KERNEL);
300 if (!buf) {
301 err = -ENOMEM;
302 goto err_close_nsp;
303 }
304
305 err = nfp_nsp_versions(nsp, buf, NFP_NSP_VERSION_BUFSZ);
306 if (err)
307 goto err_free_buf;
308
309 err = nfp_devlink_versions_get_nsp(req, false,
310 buf, NFP_NSP_VERSION_BUFSZ);
311 if (err)
312 goto err_free_buf;
313
314 err = nfp_devlink_versions_get_nsp(req, true,
315 buf, NFP_NSP_VERSION_BUFSZ);
316 if (err)
317 goto err_free_buf;
318
319 kfree(buf);
320 }
321
322 nfp_nsp_close(nsp);
323
324 return nfp_devlink_versions_get_hwinfo(pf, req);
325
326err_free_buf:
327 kfree(buf);
328err_close_nsp:
329 nfp_nsp_close(nsp);
330 return err;
331}
332
333static int
334nfp_devlink_flash_update(struct devlink *devlink, const char *path,
335 const char *component, struct netlink_ext_ack *extack)
336{
337 if (component)
338 return -EOPNOTSUPP;
339 return nfp_flash_update_common(devlink_priv(devlink), path, extack);
340}
341
342const struct devlink_ops nfp_devlink_ops = {
343 .port_split = nfp_devlink_port_split,
344 .port_unsplit = nfp_devlink_port_unsplit,
345 .sb_pool_get = nfp_devlink_sb_pool_get,
346 .sb_pool_set = nfp_devlink_sb_pool_set,
347 .eswitch_mode_get = nfp_devlink_eswitch_mode_get,
348 .eswitch_mode_set = nfp_devlink_eswitch_mode_set,
349 .info_get = nfp_devlink_info_get,
350 .flash_update = nfp_devlink_flash_update,
351};
352
353int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port)
354{
355 struct nfp_eth_table_port eth_port;
356 struct devlink *devlink;
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 devlink_port_type_eth_set(&port->dl_port, port->netdev);
366 devlink_port_attrs_set(&port->dl_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
367 eth_port.label_port, eth_port.is_split,
368 eth_port.label_subport);
369
370 devlink = priv_to_devlink(app->pf);
371
372 return devlink_port_register(devlink, &port->dl_port, port->eth_id);
373}
374
375void nfp_devlink_port_unregister(struct nfp_port *port)
376{
377 devlink_port_unregister(&port->dl_port);
378}
379
380struct devlink *nfp_devlink_get_devlink(struct net_device *netdev)
381{
382 struct nfp_app *app;
383
384 app = nfp_app_from_netdev(netdev);
385 if (!app)
386 return NULL;
387
388 return priv_to_devlink(app->pf);
389}
390
