diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
---|---|---|
committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /drivers/net/ixgbe/ixgbe_dcb_nl.c | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb_nl.c')
-rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_nl.c | 816 |
1 files changed, 816 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c new file mode 100644 index 00000000000..0ace6ce1d0b --- /dev/null +++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c | |||
@@ -0,0 +1,816 @@ | |||
1 | /******************************************************************************* | ||
2 | |||
3 | Intel 10 Gigabit PCI Express Linux driver | ||
4 | Copyright(c) 1999 - 2011 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 | #include "ixgbe_dcb_82598.h" | ||
32 | #include "ixgbe_dcb_82599.h" | ||
33 | |||
34 | /* Callbacks for DCB netlink in the kernel */ | ||
35 | #define BIT_DCB_MODE 0x01 | ||
36 | #define BIT_PFC 0x02 | ||
37 | #define BIT_PG_RX 0x04 | ||
38 | #define BIT_PG_TX 0x08 | ||
39 | #define BIT_APP_UPCHG 0x10 | ||
40 | #define BIT_LINKSPEED 0x80 | ||
41 | |||
42 | /* Responses for the DCB_C_SET_ALL command */ | ||
43 | #define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */ | ||
44 | #define DCB_NO_HW_CHG 1 /* DCB configuration did not change */ | ||
45 | #define DCB_HW_CHG 2 /* DCB configuration changed, no reset */ | ||
46 | |||
47 | int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg, | ||
48 | struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max) | ||
49 | { | ||
50 | struct tc_configuration *src_tc_cfg = NULL; | ||
51 | struct tc_configuration *dst_tc_cfg = NULL; | ||
52 | int i; | ||
53 | |||
54 | if (!src_dcb_cfg || !dst_dcb_cfg) | ||
55 | return -EINVAL; | ||
56 | |||
57 | for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) { | ||
58 | src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; | ||
59 | dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0]; | ||
60 | |||
61 | dst_tc_cfg->path[DCB_TX_CONFIG].prio_type = | ||
62 | src_tc_cfg->path[DCB_TX_CONFIG].prio_type; | ||
63 | |||
64 | dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id = | ||
65 | src_tc_cfg->path[DCB_TX_CONFIG].bwg_id; | ||
66 | |||
67 | dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent = | ||
68 | src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent; | ||
69 | |||
70 | dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap = | ||
71 | src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap; | ||
72 | |||
73 | dst_tc_cfg->path[DCB_RX_CONFIG].prio_type = | ||
74 | src_tc_cfg->path[DCB_RX_CONFIG].prio_type; | ||
75 | |||
76 | dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id = | ||
77 | src_tc_cfg->path[DCB_RX_CONFIG].bwg_id; | ||
78 | |||
79 | dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent = | ||
80 | src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent; | ||
81 | |||
82 | dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap = | ||
83 | src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap; | ||
84 | } | ||
85 | |||
86 | for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) { | ||
87 | dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG] | ||
88 | [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage | ||
89 | [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; | ||
90 | dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG] | ||
91 | [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage | ||
92 | [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0]; | ||
93 | } | ||
94 | |||
95 | for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) { | ||
96 | dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc = | ||
97 | src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc; | ||
98 | } | ||
99 | |||
100 | dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable; | ||
101 | |||
102 | return 0; | ||
103 | } | ||
104 | |||
105 | static u8 ixgbe_dcbnl_get_state(struct net_device *netdev) | ||
106 | { | ||
107 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
108 | |||
109 | return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED); | ||
110 | } | ||
111 | |||
112 | static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) | ||
113 | { | ||
114 | u8 err = 0; | ||
115 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
116 | |||
117 | /* verify there is something to do, if not then exit */ | ||
118 | if (!!state != !(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) | ||
119 | return err; | ||
120 | |||
121 | if (state > 0) { | ||
122 | /* Turn on DCB */ | ||
123 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { | ||
124 | e_err(drv, "Enable failed, needs MSI-X\n"); | ||
125 | err = 1; | ||
126 | goto out; | ||
127 | } | ||
128 | |||
129 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; | ||
130 | |||
131 | switch (adapter->hw.mac.type) { | ||
132 | case ixgbe_mac_82598EB: | ||
133 | adapter->last_lfc_mode = adapter->hw.fc.current_mode; | ||
134 | adapter->hw.fc.requested_mode = ixgbe_fc_none; | ||
135 | break; | ||
136 | case ixgbe_mac_82599EB: | ||
137 | case ixgbe_mac_X540: | ||
138 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; | ||
139 | break; | ||
140 | default: | ||
141 | break; | ||
142 | } | ||
143 | |||
144 | ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS); | ||
145 | } else { | ||
146 | /* Turn off DCB */ | ||
147 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | ||
148 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | ||
149 | adapter->dcb_cfg.pfc_mode_enable = false; | ||
150 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | ||
151 | switch (adapter->hw.mac.type) { | ||
152 | case ixgbe_mac_82599EB: | ||
153 | case ixgbe_mac_X540: | ||
154 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) | ||
155 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | ||
156 | break; | ||
157 | default: | ||
158 | break; | ||
159 | } | ||
160 | ixgbe_setup_tc(netdev, 0); | ||
161 | } | ||
162 | |||
163 | out: | ||
164 | return err; | ||
165 | } | ||
166 | |||
167 | static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev, | ||
168 | u8 *perm_addr) | ||
169 | { | ||
170 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
171 | int i, j; | ||
172 | |||
173 | memset(perm_addr, 0xff, MAX_ADDR_LEN); | ||
174 | |||
175 | for (i = 0; i < netdev->addr_len; i++) | ||
176 | perm_addr[i] = adapter->hw.mac.perm_addr[i]; | ||
177 | |||
178 | switch (adapter->hw.mac.type) { | ||
179 | case ixgbe_mac_82599EB: | ||
180 | case ixgbe_mac_X540: | ||
181 | for (j = 0; j < netdev->addr_len; j++, i++) | ||
182 | perm_addr[i] = adapter->hw.mac.san_addr[j]; | ||
183 | break; | ||
184 | default: | ||
185 | break; | ||
186 | } | ||
187 | } | ||
188 | |||
189 | static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc, | ||
190 | u8 prio, u8 bwg_id, u8 bw_pct, | ||
191 | u8 up_map) | ||
192 | { | ||
193 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
194 | |||
195 | if (prio != DCB_ATTR_VALUE_UNDEFINED) | ||
196 | adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio; | ||
197 | if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) | ||
198 | adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id; | ||
199 | if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) | ||
200 | adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent = | ||
201 | bw_pct; | ||
202 | if (up_map != DCB_ATTR_VALUE_UNDEFINED) | ||
203 | adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap = | ||
204 | up_map; | ||
205 | |||
206 | if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type != | ||
207 | adapter->dcb_cfg.tc_config[tc].path[0].prio_type) || | ||
208 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id != | ||
209 | adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) || | ||
210 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent != | ||
211 | adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) || | ||
212 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != | ||
213 | adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) | ||
214 | adapter->dcb_set_bitmap |= BIT_PG_TX; | ||
215 | } | ||
216 | |||
217 | static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, | ||
218 | u8 bw_pct) | ||
219 | { | ||
220 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
221 | |||
222 | adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct; | ||
223 | |||
224 | if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] != | ||
225 | adapter->dcb_cfg.bw_percentage[0][bwg_id]) | ||
226 | adapter->dcb_set_bitmap |= BIT_PG_TX; | ||
227 | } | ||
228 | |||
229 | static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, | ||
230 | u8 prio, u8 bwg_id, u8 bw_pct, | ||
231 | u8 up_map) | ||
232 | { | ||
233 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
234 | |||
235 | if (prio != DCB_ATTR_VALUE_UNDEFINED) | ||
236 | adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio; | ||
237 | if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) | ||
238 | adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id; | ||
239 | if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) | ||
240 | adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent = | ||
241 | bw_pct; | ||
242 | if (up_map != DCB_ATTR_VALUE_UNDEFINED) | ||
243 | adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap = | ||
244 | up_map; | ||
245 | |||
246 | if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type != | ||
247 | adapter->dcb_cfg.tc_config[tc].path[1].prio_type) || | ||
248 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id != | ||
249 | adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) || | ||
250 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent != | ||
251 | adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) || | ||
252 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != | ||
253 | adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) | ||
254 | adapter->dcb_set_bitmap |= BIT_PG_RX; | ||
255 | } | ||
256 | |||
257 | static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, | ||
258 | u8 bw_pct) | ||
259 | { | ||
260 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
261 | |||
262 | adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct; | ||
263 | |||
264 | if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] != | ||
265 | adapter->dcb_cfg.bw_percentage[1][bwg_id]) | ||
266 | adapter->dcb_set_bitmap |= BIT_PG_RX; | ||
267 | } | ||
268 | |||
269 | static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, | ||
270 | u8 *prio, u8 *bwg_id, u8 *bw_pct, | ||
271 | u8 *up_map) | ||
272 | { | ||
273 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
274 | |||
275 | *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type; | ||
276 | *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id; | ||
277 | *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent; | ||
278 | *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap; | ||
279 | } | ||
280 | |||
281 | static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, | ||
282 | u8 *bw_pct) | ||
283 | { | ||
284 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
285 | |||
286 | *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id]; | ||
287 | } | ||
288 | |||
289 | static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc, | ||
290 | u8 *prio, u8 *bwg_id, u8 *bw_pct, | ||
291 | u8 *up_map) | ||
292 | { | ||
293 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
294 | |||
295 | *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type; | ||
296 | *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id; | ||
297 | *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent; | ||
298 | *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap; | ||
299 | } | ||
300 | |||
301 | static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, | ||
302 | u8 *bw_pct) | ||
303 | { | ||
304 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
305 | |||
306 | *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id]; | ||
307 | } | ||
308 | |||
309 | static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority, | ||
310 | u8 setting) | ||
311 | { | ||
312 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
313 | |||
314 | adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting; | ||
315 | if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc != | ||
316 | adapter->dcb_cfg.tc_config[priority].dcb_pfc) { | ||
317 | adapter->dcb_set_bitmap |= BIT_PFC; | ||
318 | adapter->temp_dcb_cfg.pfc_mode_enable = true; | ||
319 | } | ||
320 | } | ||
321 | |||
322 | static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority, | ||
323 | u8 *setting) | ||
324 | { | ||
325 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
326 | |||
327 | *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc; | ||
328 | } | ||
329 | |||
330 | static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) | ||
331 | { | ||
332 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
333 | int ret; | ||
334 | #ifdef IXGBE_FCOE | ||
335 | struct dcb_app app = { | ||
336 | .selector = DCB_APP_IDTYPE_ETHTYPE, | ||
337 | .protocol = ETH_P_FCOE, | ||
338 | }; | ||
339 | u8 up = dcb_getapp(netdev, &app); | ||
340 | #endif | ||
341 | |||
342 | ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, | ||
343 | MAX_TRAFFIC_CLASS); | ||
344 | if (ret) | ||
345 | return DCB_NO_HW_CHG; | ||
346 | |||
347 | #ifdef IXGBE_FCOE | ||
348 | if (up && (up != (1 << adapter->fcoe.up))) | ||
349 | adapter->dcb_set_bitmap |= BIT_APP_UPCHG; | ||
350 | |||
351 | /* | ||
352 | * Only take down the adapter if an app change occurred. FCoE | ||
353 | * may shuffle tx rings in this case and this can not be done | ||
354 | * without a reset currently. | ||
355 | */ | ||
356 | if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { | ||
357 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) | ||
358 | usleep_range(1000, 2000); | ||
359 | |||
360 | adapter->fcoe.up = ffs(up) - 1; | ||
361 | |||
362 | if (netif_running(netdev)) | ||
363 | netdev->netdev_ops->ndo_stop(netdev); | ||
364 | ixgbe_clear_interrupt_scheme(adapter); | ||
365 | } | ||
366 | #endif | ||
367 | |||
368 | if (adapter->dcb_cfg.pfc_mode_enable) { | ||
369 | switch (adapter->hw.mac.type) { | ||
370 | case ixgbe_mac_82599EB: | ||
371 | case ixgbe_mac_X540: | ||
372 | if (adapter->hw.fc.current_mode != ixgbe_fc_pfc) | ||
373 | adapter->last_lfc_mode = | ||
374 | adapter->hw.fc.current_mode; | ||
375 | break; | ||
376 | default: | ||
377 | break; | ||
378 | } | ||
379 | adapter->hw.fc.requested_mode = ixgbe_fc_pfc; | ||
380 | } else { | ||
381 | switch (adapter->hw.mac.type) { | ||
382 | case ixgbe_mac_82598EB: | ||
383 | adapter->hw.fc.requested_mode = ixgbe_fc_none; | ||
384 | break; | ||
385 | case ixgbe_mac_82599EB: | ||
386 | case ixgbe_mac_X540: | ||
387 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | ||
388 | break; | ||
389 | default: | ||
390 | break; | ||
391 | } | ||
392 | } | ||
393 | |||
394 | #ifdef IXGBE_FCOE | ||
395 | if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { | ||
396 | ixgbe_init_interrupt_scheme(adapter); | ||
397 | if (netif_running(netdev)) | ||
398 | netdev->netdev_ops->ndo_open(netdev); | ||
399 | ret = DCB_HW_CHG_RST; | ||
400 | } | ||
401 | #endif | ||
402 | |||
403 | if (adapter->dcb_set_bitmap & BIT_PFC) { | ||
404 | u8 pfc_en; | ||
405 | ixgbe_dcb_unpack_pfc(&adapter->dcb_cfg, &pfc_en); | ||
406 | ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc_en); | ||
407 | ret = DCB_HW_CHG; | ||
408 | } | ||
409 | |||
410 | if (adapter->dcb_set_bitmap & (BIT_PG_TX|BIT_PG_RX)) { | ||
411 | u16 refill[MAX_TRAFFIC_CLASS], max[MAX_TRAFFIC_CLASS]; | ||
412 | u8 bwg_id[MAX_TRAFFIC_CLASS], prio_type[MAX_TRAFFIC_CLASS]; | ||
413 | /* Priority to TC mapping in CEE case default to 1:1 */ | ||
414 | u8 prio_tc[MAX_TRAFFIC_CLASS] = {0, 1, 2, 3, 4, 5, 6, 7}; | ||
415 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | ||
416 | |||
417 | #ifdef CONFIG_FCOE | ||
418 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) | ||
419 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | ||
420 | #endif | ||
421 | |||
422 | ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg, | ||
423 | max_frame, DCB_TX_CONFIG); | ||
424 | ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg, | ||
425 | max_frame, DCB_RX_CONFIG); | ||
426 | |||
427 | ixgbe_dcb_unpack_refill(&adapter->dcb_cfg, | ||
428 | DCB_TX_CONFIG, refill); | ||
429 | ixgbe_dcb_unpack_max(&adapter->dcb_cfg, max); | ||
430 | ixgbe_dcb_unpack_bwgid(&adapter->dcb_cfg, | ||
431 | DCB_TX_CONFIG, bwg_id); | ||
432 | ixgbe_dcb_unpack_prio(&adapter->dcb_cfg, | ||
433 | DCB_TX_CONFIG, prio_type); | ||
434 | |||
435 | ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max, | ||
436 | bwg_id, prio_type, prio_tc); | ||
437 | } | ||
438 | |||
439 | if (adapter->dcb_cfg.pfc_mode_enable) | ||
440 | adapter->hw.fc.current_mode = ixgbe_fc_pfc; | ||
441 | |||
442 | if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) | ||
443 | clear_bit(__IXGBE_RESETTING, &adapter->state); | ||
444 | adapter->dcb_set_bitmap = 0x00; | ||
445 | return ret; | ||
446 | } | ||
447 | |||
448 | static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap) | ||
449 | { | ||
450 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
451 | |||
452 | switch (capid) { | ||
453 | case DCB_CAP_ATTR_PG: | ||
454 | *cap = true; | ||
455 | break; | ||
456 | case DCB_CAP_ATTR_PFC: | ||
457 | *cap = true; | ||
458 | break; | ||
459 | case DCB_CAP_ATTR_UP2TC: | ||
460 | *cap = false; | ||
461 | break; | ||
462 | case DCB_CAP_ATTR_PG_TCS: | ||
463 | *cap = 0x80; | ||
464 | break; | ||
465 | case DCB_CAP_ATTR_PFC_TCS: | ||
466 | *cap = 0x80; | ||
467 | break; | ||
468 | case DCB_CAP_ATTR_GSP: | ||
469 | *cap = true; | ||
470 | break; | ||
471 | case DCB_CAP_ATTR_BCN: | ||
472 | *cap = false; | ||
473 | break; | ||
474 | case DCB_CAP_ATTR_DCBX: | ||
475 | *cap = adapter->dcbx_cap; | ||
476 | break; | ||
477 | default: | ||
478 | *cap = false; | ||
479 | break; | ||
480 | } | ||
481 | |||
482 | return 0; | ||
483 | } | ||
484 | |||
485 | static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num) | ||
486 | { | ||
487 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
488 | u8 rval = 0; | ||
489 | |||
490 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | ||
491 | switch (tcid) { | ||
492 | case DCB_NUMTCS_ATTR_PG: | ||
493 | *num = MAX_TRAFFIC_CLASS; | ||
494 | break; | ||
495 | case DCB_NUMTCS_ATTR_PFC: | ||
496 | *num = MAX_TRAFFIC_CLASS; | ||
497 | break; | ||
498 | default: | ||
499 | rval = -EINVAL; | ||
500 | break; | ||
501 | } | ||
502 | } else { | ||
503 | rval = -EINVAL; | ||
504 | } | ||
505 | |||
506 | return rval; | ||
507 | } | ||
508 | |||
509 | static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num) | ||
510 | { | ||
511 | return -EINVAL; | ||
512 | } | ||
513 | |||
514 | static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev) | ||
515 | { | ||
516 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
517 | |||
518 | return adapter->dcb_cfg.pfc_mode_enable; | ||
519 | } | ||
520 | |||
521 | static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state) | ||
522 | { | ||
523 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
524 | |||
525 | adapter->temp_dcb_cfg.pfc_mode_enable = state; | ||
526 | if (adapter->temp_dcb_cfg.pfc_mode_enable != | ||
527 | adapter->dcb_cfg.pfc_mode_enable) | ||
528 | adapter->dcb_set_bitmap |= BIT_PFC; | ||
529 | } | ||
530 | |||
531 | /** | ||
532 | * ixgbe_dcbnl_getapp - retrieve the DCBX application user priority | ||
533 | * @netdev : the corresponding netdev | ||
534 | * @idtype : identifies the id as ether type or TCP/UDP port number | ||
535 | * @id: id is either ether type or TCP/UDP port number | ||
536 | * | ||
537 | * Returns : on success, returns a non-zero 802.1p user priority bitmap | ||
538 | * otherwise returns 0 as the invalid user priority bitmap to indicate an | ||
539 | * error. | ||
540 | */ | ||
541 | static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id) | ||
542 | { | ||
543 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | ||
544 | struct dcb_app app = { | ||
545 | .selector = idtype, | ||
546 | .protocol = id, | ||
547 | }; | ||
548 | |||
549 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)) | ||
550 | return 0; | ||
551 | |||
552 | return dcb_getapp(netdev, &app); | ||
553 | } | ||
554 | |||
555 | static int ixgbe_dcbnl_ieee_getets(struct net_device *dev, | ||
556 | struct ieee_ets *ets) | ||
557 | { | ||
558 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
559 | struct ieee_ets *my_ets = adapter->ixgbe_ieee_ets; | ||
560 | |||
561 | /* No IEEE PFC settings available */ | ||
562 | if (!my_ets) | ||
563 | return -EINVAL; | ||
564 | |||
565 | ets->ets_cap = MAX_TRAFFIC_CLASS; | ||
566 | ets->cbs = my_ets->cbs; | ||
567 | memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw)); | ||
568 | memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw)); | ||
569 | memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa)); | ||
570 | memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc)); | ||
571 | return 0; | ||
572 | } | ||
573 | |||
574 | static int ixgbe_dcbnl_ieee_setets(struct net_device *dev, | ||
575 | struct ieee_ets *ets) | ||
576 | { | ||
577 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
578 | __u16 refill[IEEE_8021QAZ_MAX_TCS], max[IEEE_8021QAZ_MAX_TCS]; | ||
579 | __u8 prio_type[IEEE_8021QAZ_MAX_TCS]; | ||
580 | int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | ||
581 | int i, err; | ||
582 | __u64 *p = (__u64 *) ets->prio_tc; | ||
583 | /* naively give each TC a bwg to map onto CEE hardware */ | ||
584 | __u8 bwg_id[IEEE_8021QAZ_MAX_TCS] = {0, 1, 2, 3, 4, 5, 6, 7}; | ||
585 | |||
586 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) | ||
587 | return -EINVAL; | ||
588 | |||
589 | if (!adapter->ixgbe_ieee_ets) { | ||
590 | adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets), | ||
591 | GFP_KERNEL); | ||
592 | if (!adapter->ixgbe_ieee_ets) | ||
593 | return -ENOMEM; | ||
594 | } | ||
595 | |||
596 | memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets)); | ||
597 | |||
598 | /* Map TSA onto CEE prio type */ | ||
599 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | ||
600 | switch (ets->tc_tsa[i]) { | ||
601 | case IEEE_8021QAZ_TSA_STRICT: | ||
602 | prio_type[i] = 2; | ||
603 | break; | ||
604 | case IEEE_8021QAZ_TSA_ETS: | ||
605 | prio_type[i] = 0; | ||
606 | break; | ||
607 | default: | ||
608 | /* Hardware only supports priority strict or | ||
609 | * ETS transmission selection algorithms if | ||
610 | * we receive some other value from dcbnl | ||
611 | * throw an error | ||
612 | */ | ||
613 | return -EINVAL; | ||
614 | } | ||
615 | } | ||
616 | |||
617 | if (*p) | ||
618 | ixgbe_dcbnl_set_state(dev, 1); | ||
619 | else | ||
620 | ixgbe_dcbnl_set_state(dev, 0); | ||
621 | |||
622 | ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame); | ||
623 | err = ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max, | ||
624 | bwg_id, prio_type, ets->prio_tc); | ||
625 | return err; | ||
626 | } | ||
627 | |||
628 | static int ixgbe_dcbnl_ieee_getpfc(struct net_device *dev, | ||
629 | struct ieee_pfc *pfc) | ||
630 | { | ||
631 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
632 | struct ieee_pfc *my_pfc = adapter->ixgbe_ieee_pfc; | ||
633 | int i; | ||
634 | |||
635 | /* No IEEE PFC settings available */ | ||
636 | if (!my_pfc) | ||
637 | return -EINVAL; | ||
638 | |||
639 | pfc->pfc_cap = MAX_TRAFFIC_CLASS; | ||
640 | pfc->pfc_en = my_pfc->pfc_en; | ||
641 | pfc->mbc = my_pfc->mbc; | ||
642 | pfc->delay = my_pfc->delay; | ||
643 | |||
644 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | ||
645 | pfc->requests[i] = adapter->stats.pxoffrxc[i]; | ||
646 | pfc->indications[i] = adapter->stats.pxofftxc[i]; | ||
647 | } | ||
648 | |||
649 | return 0; | ||
650 | } | ||
651 | |||
652 | static int ixgbe_dcbnl_ieee_setpfc(struct net_device *dev, | ||
653 | struct ieee_pfc *pfc) | ||
654 | { | ||
655 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
656 | int err; | ||
657 | |||
658 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) | ||
659 | return -EINVAL; | ||
660 | |||
661 | if (!adapter->ixgbe_ieee_pfc) { | ||
662 | adapter->ixgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc), | ||
663 | GFP_KERNEL); | ||
664 | if (!adapter->ixgbe_ieee_pfc) | ||
665 | return -ENOMEM; | ||
666 | } | ||
667 | |||
668 | memcpy(adapter->ixgbe_ieee_pfc, pfc, sizeof(*adapter->ixgbe_ieee_pfc)); | ||
669 | err = ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc->pfc_en); | ||
670 | return err; | ||
671 | } | ||
672 | |||
673 | #ifdef IXGBE_FCOE | ||
674 | static void ixgbe_dcbnl_devreset(struct net_device *dev) | ||
675 | { | ||
676 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
677 | |||
678 | if (netif_running(dev)) | ||
679 | dev->netdev_ops->ndo_stop(dev); | ||
680 | |||
681 | ixgbe_clear_interrupt_scheme(adapter); | ||
682 | ixgbe_init_interrupt_scheme(adapter); | ||
683 | |||
684 | if (netif_running(dev)) | ||
685 | dev->netdev_ops->ndo_open(dev); | ||
686 | } | ||
687 | #endif | ||
688 | |||
689 | static int ixgbe_dcbnl_ieee_setapp(struct net_device *dev, | ||
690 | struct dcb_app *app) | ||
691 | { | ||
692 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
693 | int err = -EINVAL; | ||
694 | |||
695 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) | ||
696 | return err; | ||
697 | |||
698 | err = dcb_ieee_setapp(dev, app); | ||
699 | |||
700 | #ifdef IXGBE_FCOE | ||
701 | if (!err && app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE && | ||
702 | app->protocol == ETH_P_FCOE) { | ||
703 | u8 app_mask = dcb_ieee_getapp_mask(dev, app); | ||
704 | |||
705 | if (app_mask & (1 << adapter->fcoe.up)) | ||
706 | return err; | ||
707 | |||
708 | adapter->fcoe.up = app->priority; | ||
709 | ixgbe_dcbnl_devreset(dev); | ||
710 | } | ||
711 | #endif | ||
712 | return 0; | ||
713 | } | ||
714 | |||
715 | static int ixgbe_dcbnl_ieee_delapp(struct net_device *dev, | ||
716 | struct dcb_app *app) | ||
717 | { | ||
718 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
719 | int err; | ||
720 | |||
721 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) | ||
722 | return -EINVAL; | ||
723 | |||
724 | err = dcb_ieee_delapp(dev, app); | ||
725 | |||
726 | #ifdef IXGBE_FCOE | ||
727 | if (!err && app->selector == IEEE_8021QAZ_APP_SEL_ETHERTYPE && | ||
728 | app->protocol == ETH_P_FCOE) { | ||
729 | u8 app_mask = dcb_ieee_getapp_mask(dev, app); | ||
730 | |||
731 | if (app_mask & (1 << adapter->fcoe.up)) | ||
732 | return err; | ||
733 | |||
734 | adapter->fcoe.up = app_mask ? | ||
735 | ffs(app_mask) - 1 : IXGBE_FCOE_DEFTC; | ||
736 | ixgbe_dcbnl_devreset(dev); | ||
737 | } | ||
738 | #endif | ||
739 | return err; | ||
740 | } | ||
741 | |||
742 | static u8 ixgbe_dcbnl_getdcbx(struct net_device *dev) | ||
743 | { | ||
744 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
745 | return adapter->dcbx_cap; | ||
746 | } | ||
747 | |||
748 | static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode) | ||
749 | { | ||
750 | struct ixgbe_adapter *adapter = netdev_priv(dev); | ||
751 | struct ieee_ets ets = {0}; | ||
752 | struct ieee_pfc pfc = {0}; | ||
753 | |||
754 | /* no support for LLD_MANAGED modes or CEE+IEEE */ | ||
755 | if ((mode & DCB_CAP_DCBX_LLD_MANAGED) || | ||
756 | ((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) || | ||
757 | !(mode & DCB_CAP_DCBX_HOST)) | ||
758 | return 1; | ||
759 | |||
760 | if (mode == adapter->dcbx_cap) | ||
761 | return 0; | ||
762 | |||
763 | adapter->dcbx_cap = mode; | ||
764 | |||
765 | /* ETS and PFC defaults */ | ||
766 | ets.ets_cap = 8; | ||
767 | pfc.pfc_cap = 8; | ||
768 | |||
769 | if (mode & DCB_CAP_DCBX_VER_IEEE) { | ||
770 | ixgbe_dcbnl_ieee_setets(dev, &ets); | ||
771 | ixgbe_dcbnl_ieee_setpfc(dev, &pfc); | ||
772 | } else if (mode & DCB_CAP_DCBX_VER_CEE) { | ||
773 | adapter->dcb_set_bitmap |= (BIT_PFC & BIT_PG_TX & BIT_PG_RX); | ||
774 | ixgbe_dcbnl_set_all(dev); | ||
775 | } else { | ||
776 | /* Drop into single TC mode strict priority as this | ||
777 | * indicates CEE and IEEE versions are disabled | ||
778 | */ | ||
779 | ixgbe_dcbnl_ieee_setets(dev, &ets); | ||
780 | ixgbe_dcbnl_ieee_setpfc(dev, &pfc); | ||
781 | ixgbe_dcbnl_set_state(dev, 0); | ||
782 | } | ||
783 | |||
784 | return 0; | ||
785 | } | ||
786 | |||
787 | const struct dcbnl_rtnl_ops dcbnl_ops = { | ||
788 | .ieee_getets = ixgbe_dcbnl_ieee_getets, | ||
789 | .ieee_setets = ixgbe_dcbnl_ieee_setets, | ||
790 | .ieee_getpfc = ixgbe_dcbnl_ieee_getpfc, | ||
791 | .ieee_setpfc = ixgbe_dcbnl_ieee_setpfc, | ||
792 | .ieee_setapp = ixgbe_dcbnl_ieee_setapp, | ||
793 | .ieee_delapp = ixgbe_dcbnl_ieee_delapp, | ||
794 | .getstate = ixgbe_dcbnl_get_state, | ||
795 | .setstate = ixgbe_dcbnl_set_state, | ||
796 | .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr, | ||
797 | .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx, | ||
798 | .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx, | ||
799 | .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx, | ||
800 | .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx, | ||
801 | .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx, | ||
802 | .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx, | ||
803 | .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx, | ||
804 | .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx, | ||
805 | .setpfccfg = ixgbe_dcbnl_set_pfc_cfg, | ||
806 | .getpfccfg = ixgbe_dcbnl_get_pfc_cfg, | ||
807 | .setall = ixgbe_dcbnl_set_all, | ||
808 | .getcap = ixgbe_dcbnl_getcap, | ||
809 | .getnumtcs = ixgbe_dcbnl_getnumtcs, | ||
810 | .setnumtcs = ixgbe_dcbnl_setnumtcs, | ||
811 | .getpfcstate = ixgbe_dcbnl_getpfcstate, | ||
812 | .setpfcstate = ixgbe_dcbnl_setpfcstate, | ||
813 | .getapp = ixgbe_dcbnl_getapp, | ||
814 | .getdcbx = ixgbe_dcbnl_getdcbx, | ||
815 | .setdcbx = ixgbe_dcbnl_setdcbx, | ||
816 | }; | ||