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2f90b865 AD |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
4 | Copyright(c) 1999 - 2008 Intel Corporation. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
23 | Linux NICS <linux.nics@intel.com> | |
24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | #include "ixgbe.h" | |
30 | #include <linux/dcbnl.h> | |
31 | ||
32 | /* Callbacks for DCB netlink in the kernel */ | |
33 | #define BIT_DCB_MODE 0x01 | |
34 | #define BIT_PFC 0x02 | |
35 | #define BIT_PG_RX 0x04 | |
36 | #define BIT_PG_TX 0x08 | |
37 | ||
38 | int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, | |
39 | struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max) | |
40 | { | |
41 | struct tc_configuration *src_tc_cfg = NULL; | |
42 | struct tc_configuration *dst_tc_cfg = NULL; | |
43 | int i; | |
44 | ||
45 | if (!src_dcb_cfg || !dst_dcb_cfg) | |
46 | return -EINVAL; | |
47 | ||
48 | for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) { | |
49 | src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; | |
50 | dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; | |
51 | ||
52 | dst_tc_cfg->path[DCB_TX_CONFIG].prio_type = | |
53 | src_tc_cfg->path[DCB_TX_CONFIG].prio_type; | |
54 | ||
55 | dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id = | |
56 | src_tc_cfg->path[DCB_TX_CONFIG].bwg_id; | |
57 | ||
58 | dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent = | |
59 | src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent; | |
60 | ||
61 | dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap = | |
62 | src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap; | |
63 | ||
64 | dst_tc_cfg->path[DCB_RX_CONFIG].prio_type = | |
65 | src_tc_cfg->path[DCB_RX_CONFIG].prio_type; | |
66 | ||
67 | dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id = | |
68 | src_tc_cfg->path[DCB_RX_CONFIG].bwg_id; | |
69 | ||
70 | dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent = | |
71 | src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent; | |
72 | ||
73 | dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap = | |
74 | src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap; | |
75 | } | |
76 | ||
77 | for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) { | |
78 | dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG] | |
79 | [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage | |
80 | [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; | |
81 | dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG] | |
82 | [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage | |
83 | [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; | |
84 | } | |
85 | ||
86 | for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) { | |
87 | dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc = | |
88 | src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc; | |
89 | } | |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
94 | static u8 ixgbe_dcbnl_get_state(struct net_device *netdev) | |
95 | { | |
96 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
97 | ||
98 | DPRINTK(DRV, INFO, "Get DCB Admin Mode.\n"); | |
99 | ||
100 | return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED); | |
101 | } | |
102 | ||
103 | static u16 ixgbe_dcb_select_queue(struct net_device *dev, struct sk_buff *skb) | |
104 | { | |
105 | /* All traffic should default to class 0 */ | |
106 | return 0; | |
107 | } | |
108 | ||
109 | static void ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) | |
110 | { | |
111 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
112 | ||
113 | DPRINTK(DRV, INFO, "Set DCB Admin Mode.\n"); | |
114 | ||
115 | if (state > 0) { | |
116 | /* Turn on DCB */ | |
117 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
118 | return; | |
119 | } else { | |
120 | if (netif_running(netdev)) | |
121 | netdev->stop(netdev); | |
122 | ixgbe_reset_interrupt_capability(adapter); | |
123 | ixgbe_napi_del_all(adapter); | |
124 | kfree(adapter->tx_ring); | |
125 | kfree(adapter->rx_ring); | |
126 | adapter->tx_ring = NULL; | |
127 | adapter->rx_ring = NULL; | |
128 | netdev->select_queue = &ixgbe_dcb_select_queue; | |
129 | ||
130 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; | |
131 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; | |
132 | ixgbe_init_interrupt_scheme(adapter); | |
133 | ixgbe_napi_add_all(adapter); | |
134 | if (netif_running(netdev)) | |
135 | netdev->open(netdev); | |
136 | } | |
137 | } else { | |
138 | /* Turn off DCB */ | |
139 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
140 | if (netif_running(netdev)) | |
141 | netdev->stop(netdev); | |
142 | ixgbe_reset_interrupt_capability(adapter); | |
143 | ixgbe_napi_del_all(adapter); | |
144 | kfree(adapter->tx_ring); | |
145 | kfree(adapter->rx_ring); | |
146 | adapter->tx_ring = NULL; | |
147 | adapter->rx_ring = NULL; | |
148 | netdev->select_queue = NULL; | |
149 | ||
150 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
151 | adapter->flags |= IXGBE_FLAG_RSS_ENABLED; | |
152 | ixgbe_init_interrupt_scheme(adapter); | |
153 | ixgbe_napi_add_all(adapter); | |
154 | if (netif_running(netdev)) | |
155 | netdev->open(netdev); | |
156 | } else { | |
157 | return; | |
158 | } | |
159 | } | |
160 | } | |
161 | ||
162 | static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev, | |
163 | u8 *perm_addr) | |
164 | { | |
165 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
166 | int i; | |
167 | ||
168 | for (i = 0; i < netdev->addr_len; i++) | |
169 | perm_addr[i] = adapter->hw.mac.perm_addr[i]; | |
170 | } | |
171 | ||
172 | static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc, | |
173 | u8 prio, u8 bwg_id, u8 bw_pct, | |
174 | u8 up_map) | |
175 | { | |
176 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
177 | ||
178 | if (prio != DCB_ATTR_VALUE_UNDEFINED) | |
179 | adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio; | |
180 | if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) | |
181 | adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id; | |
182 | if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) | |
183 | adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent = | |
184 | bw_pct; | |
185 | if (up_map != DCB_ATTR_VALUE_UNDEFINED) | |
186 | adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap = | |
187 | up_map; | |
188 | ||
189 | if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type != | |
190 | adapter->dcb_cfg.tc_config[tc].path[0].prio_type) || | |
191 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id != | |
192 | adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) || | |
193 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent != | |
194 | adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) || | |
195 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != | |
196 | adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) | |
197 | adapter->dcb_set_bitmap |= BIT_PG_TX; | |
198 | } | |
199 | ||
200 | static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, | |
201 | u8 bw_pct) | |
202 | { | |
203 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
204 | ||
205 | adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct; | |
206 | ||
207 | if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] != | |
208 | adapter->dcb_cfg.bw_percentage[0][bwg_id]) | |
209 | adapter->dcb_set_bitmap |= BIT_PG_RX; | |
210 | } | |
211 | ||
212 | static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, | |
213 | u8 prio, u8 bwg_id, u8 bw_pct, | |
214 | u8 up_map) | |
215 | { | |
216 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
217 | ||
218 | if (prio != DCB_ATTR_VALUE_UNDEFINED) | |
219 | adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio; | |
220 | if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) | |
221 | adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id; | |
222 | if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) | |
223 | adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent = | |
224 | bw_pct; | |
225 | if (up_map != DCB_ATTR_VALUE_UNDEFINED) | |
226 | adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap = | |
227 | up_map; | |
228 | ||
229 | if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type != | |
230 | adapter->dcb_cfg.tc_config[tc].path[1].prio_type) || | |
231 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id != | |
232 | adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) || | |
233 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent != | |
234 | adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) || | |
235 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != | |
236 | adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) | |
237 | adapter->dcb_set_bitmap |= BIT_PG_RX; | |
238 | } | |
239 | ||
240 | static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, | |
241 | u8 bw_pct) | |
242 | { | |
243 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
244 | ||
245 | adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct; | |
246 | ||
247 | if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] != | |
248 | adapter->dcb_cfg.bw_percentage[1][bwg_id]) | |
249 | adapter->dcb_set_bitmap |= BIT_PG_RX; | |
250 | } | |
251 | ||
252 | static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, | |
253 | u8 *prio, u8 *bwg_id, u8 *bw_pct, | |
254 | u8 *up_map) | |
255 | { | |
256 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
257 | ||
258 | *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type; | |
259 | *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id; | |
260 | *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent; | |
261 | *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap; | |
262 | } | |
263 | ||
264 | static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, | |
265 | u8 *bw_pct) | |
266 | { | |
267 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
268 | ||
269 | *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id]; | |
270 | } | |
271 | ||
272 | static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc, | |
273 | u8 *prio, u8 *bwg_id, u8 *bw_pct, | |
274 | u8 *up_map) | |
275 | { | |
276 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
277 | ||
278 | *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type; | |
279 | *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id; | |
280 | *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent; | |
281 | *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap; | |
282 | } | |
283 | ||
284 | static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, | |
285 | u8 *bw_pct) | |
286 | { | |
287 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
288 | ||
289 | *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id]; | |
290 | } | |
291 | ||
292 | static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority, | |
293 | u8 setting) | |
294 | { | |
295 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
296 | ||
297 | adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting; | |
298 | if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc != | |
299 | adapter->dcb_cfg.tc_config[priority].dcb_pfc) | |
300 | adapter->dcb_set_bitmap |= BIT_PFC; | |
301 | } | |
302 | ||
303 | static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority, | |
304 | u8 *setting) | |
305 | { | |
306 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
307 | ||
308 | *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc; | |
309 | } | |
310 | ||
311 | static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) | |
312 | { | |
313 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
314 | int ret; | |
315 | ||
316 | if (!adapter->dcb_set_bitmap) | |
317 | return 1; | |
318 | ||
319 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) | |
320 | msleep(1); | |
321 | ||
322 | if (netif_running(netdev)) | |
323 | ixgbe_down(adapter); | |
324 | ||
325 | ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, | |
326 | adapter->ring_feature[RING_F_DCB].indices); | |
327 | if (ret) { | |
328 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
329 | return ret; | |
330 | } | |
331 | ||
332 | if (netif_running(netdev)) | |
333 | ixgbe_up(adapter); | |
334 | ||
335 | adapter->dcb_set_bitmap = 0x00; | |
336 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
337 | return ret; | |
338 | } | |
339 | ||
46132188 AD |
340 | static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap) |
341 | { | |
342 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
343 | u8 rval = 0; | |
344 | ||
345 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
346 | switch (capid) { | |
347 | case DCB_CAP_ATTR_PG: | |
348 | *cap = true; | |
349 | break; | |
350 | case DCB_CAP_ATTR_PFC: | |
351 | *cap = true; | |
352 | break; | |
353 | case DCB_CAP_ATTR_UP2TC: | |
354 | *cap = false; | |
355 | break; | |
356 | case DCB_CAP_ATTR_PG_TCS: | |
357 | *cap = 0x80; | |
358 | break; | |
359 | case DCB_CAP_ATTR_PFC_TCS: | |
360 | *cap = 0x80; | |
361 | break; | |
362 | case DCB_CAP_ATTR_GSP: | |
363 | *cap = true; | |
364 | break; | |
365 | case DCB_CAP_ATTR_BCN: | |
366 | *cap = false; | |
367 | break; | |
368 | default: | |
369 | rval = -EINVAL; | |
370 | break; | |
371 | } | |
372 | } else { | |
373 | rval = -EINVAL; | |
374 | } | |
375 | ||
376 | return rval; | |
377 | } | |
378 | ||
33dbabc4 AD |
379 | static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num) |
380 | { | |
381 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
382 | u8 rval = 0; | |
383 | ||
384 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
385 | switch (tcid) { | |
386 | case DCB_NUMTCS_ATTR_PG: | |
387 | *num = MAX_TRAFFIC_CLASS; | |
388 | break; | |
389 | case DCB_NUMTCS_ATTR_PFC: | |
390 | *num = MAX_TRAFFIC_CLASS; | |
391 | break; | |
392 | default: | |
393 | rval = -EINVAL; | |
394 | break; | |
395 | } | |
396 | } else { | |
397 | rval = -EINVAL; | |
398 | } | |
399 | ||
400 | return rval; | |
401 | } | |
402 | ||
403 | static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num) | |
404 | { | |
405 | return -EINVAL; | |
406 | } | |
407 | ||
0eb3aa9b AD |
408 | static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev) |
409 | { | |
410 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
411 | ||
412 | return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED); | |
413 | } | |
414 | ||
415 | static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state) | |
416 | { | |
417 | return; | |
418 | } | |
419 | ||
2f90b865 AD |
420 | struct dcbnl_rtnl_ops dcbnl_ops = { |
421 | .getstate = ixgbe_dcbnl_get_state, | |
422 | .setstate = ixgbe_dcbnl_set_state, | |
423 | .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr, | |
424 | .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx, | |
425 | .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx, | |
426 | .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx, | |
427 | .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx, | |
428 | .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx, | |
429 | .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx, | |
430 | .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx, | |
431 | .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx, | |
432 | .setpfccfg = ixgbe_dcbnl_set_pfc_cfg, | |
433 | .getpfccfg = ixgbe_dcbnl_get_pfc_cfg, | |
46132188 | 434 | .setall = ixgbe_dcbnl_set_all, |
33dbabc4 AD |
435 | .getcap = ixgbe_dcbnl_getcap, |
436 | .getnumtcs = ixgbe_dcbnl_getnumtcs, | |
0eb3aa9b AD |
437 | .setnumtcs = ixgbe_dcbnl_setnumtcs, |
438 | .getpfcstate = ixgbe_dcbnl_getpfcstate, | |
439 | .setpfcstate = ixgbe_dcbnl_setpfcstate | |
2f90b865 AD |
440 | }; |
441 |