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2f90b865 AD |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
a52055e0 | 4 | Copyright(c) 1999 - 2011 Intel Corporation. |
2f90b865 AD |
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> | |
62551d3e PWJ |
31 | #include "ixgbe_dcb_82598.h" |
32 | #include "ixgbe_dcb_82599.h" | |
2f90b865 AD |
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 | |
8de8b2e6 | 39 | #define BIT_APP_UPCHG 0x10 |
235ea828 | 40 | #define BIT_LINKSPEED 0x80 |
2f90b865 | 41 | |
62551d3e PWJ |
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 | ||
2f90b865 AD |
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 | ||
ea4af4f4 PW |
100 | dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable; |
101 | ||
2f90b865 AD |
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 | ||
2f90b865 AD |
109 | return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED); |
110 | } | |
111 | ||
1486a61e | 112 | static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state) |
2f90b865 | 113 | { |
1486a61e | 114 | u8 err = 0; |
2f90b865 AD |
115 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
116 | ||
2f90b865 AD |
117 | if (state > 0) { |
118 | /* Turn on DCB */ | |
1486a61e DS |
119 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) |
120 | goto out; | |
2f90b865 | 121 | |
1486a61e | 122 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
396e799c | 123 | e_err(drv, "Enable failed, needs MSI-X\n"); |
1486a61e DS |
124 | err = 1; |
125 | goto out; | |
2f90b865 | 126 | } |
1486a61e DS |
127 | |
128 | if (netif_running(netdev)) | |
129 | netdev->netdev_ops->ndo_stop(netdev); | |
7a921c93 | 130 | ixgbe_clear_interrupt_scheme(adapter); |
1486a61e | 131 | |
b93a2226 DS |
132 | switch (adapter->hw.mac.type) { |
133 | case ixgbe_mac_82598EB: | |
264857b8 PWJ |
134 | adapter->last_lfc_mode = adapter->hw.fc.current_mode; |
135 | adapter->hw.fc.requested_mode = ixgbe_fc_none; | |
b93a2226 DS |
136 | break; |
137 | case ixgbe_mac_82599EB: | |
138 | case ixgbe_mac_X540: | |
8faa2a78 YZ |
139 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
140 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
b93a2226 DS |
141 | break; |
142 | default: | |
143 | break; | |
8faa2a78 | 144 | } |
b93a2226 | 145 | |
1486a61e | 146 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
e5b64635 JF |
147 | if (!netdev_get_num_tc(netdev)) |
148 | ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS); | |
149 | ||
1486a61e | 150 | ixgbe_init_interrupt_scheme(adapter); |
1486a61e DS |
151 | if (netif_running(netdev)) |
152 | netdev->netdev_ops->ndo_open(netdev); | |
2f90b865 AD |
153 | } else { |
154 | /* Turn off DCB */ | |
155 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
156 | if (netif_running(netdev)) | |
1486a61e | 157 | netdev->netdev_ops->ndo_stop(netdev); |
7a921c93 | 158 | ixgbe_clear_interrupt_scheme(adapter); |
2f90b865 | 159 | |
264857b8 PWJ |
160 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; |
161 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
162 | adapter->dcb_cfg.pfc_mode_enable = false; | |
2f90b865 | 163 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; |
b93a2226 DS |
164 | switch (adapter->hw.mac.type) { |
165 | case ixgbe_mac_82599EB: | |
166 | case ixgbe_mac_X540: | |
8faa2a78 | 167 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; |
b93a2226 DS |
168 | break; |
169 | default: | |
170 | break; | |
171 | } | |
0d551589 | 172 | |
e5b64635 JF |
173 | ixgbe_setup_tc(netdev, 0); |
174 | ||
2f90b865 | 175 | ixgbe_init_interrupt_scheme(adapter); |
2f90b865 | 176 | if (netif_running(netdev)) |
1486a61e | 177 | netdev->netdev_ops->ndo_open(netdev); |
2f90b865 AD |
178 | } |
179 | } | |
1486a61e DS |
180 | out: |
181 | return err; | |
2f90b865 AD |
182 | } |
183 | ||
184 | static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev, | |
185 | u8 *perm_addr) | |
186 | { | |
187 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
aca6bee7 | 188 | int i, j; |
2f90b865 | 189 | |
86e713a0 LL |
190 | memset(perm_addr, 0xff, MAX_ADDR_LEN); |
191 | ||
2f90b865 AD |
192 | for (i = 0; i < netdev->addr_len; i++) |
193 | perm_addr[i] = adapter->hw.mac.perm_addr[i]; | |
aca6bee7 | 194 | |
b93a2226 DS |
195 | switch (adapter->hw.mac.type) { |
196 | case ixgbe_mac_82599EB: | |
197 | case ixgbe_mac_X540: | |
aca6bee7 WJP |
198 | for (j = 0; j < netdev->addr_len; j++, i++) |
199 | perm_addr[i] = adapter->hw.mac.san_addr[j]; | |
b93a2226 DS |
200 | break; |
201 | default: | |
202 | break; | |
aca6bee7 | 203 | } |
2f90b865 AD |
204 | } |
205 | ||
206 | static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc, | |
207 | u8 prio, u8 bwg_id, u8 bw_pct, | |
208 | u8 up_map) | |
209 | { | |
210 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
211 | ||
212 | if (prio != DCB_ATTR_VALUE_UNDEFINED) | |
213 | adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio; | |
214 | if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) | |
215 | adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id; | |
216 | if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) | |
217 | adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent = | |
218 | bw_pct; | |
219 | if (up_map != DCB_ATTR_VALUE_UNDEFINED) | |
220 | adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap = | |
221 | up_map; | |
222 | ||
223 | if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type != | |
224 | adapter->dcb_cfg.tc_config[tc].path[0].prio_type) || | |
225 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id != | |
226 | adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) || | |
227 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent != | |
228 | adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) || | |
229 | (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != | |
d43f5c21 | 230 | adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) |
2f90b865 AD |
231 | adapter->dcb_set_bitmap |= BIT_PG_TX; |
232 | } | |
233 | ||
234 | static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, | |
235 | u8 bw_pct) | |
236 | { | |
237 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
238 | ||
239 | adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct; | |
240 | ||
241 | if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] != | |
d43f5c21 | 242 | adapter->dcb_cfg.bw_percentage[0][bwg_id]) |
ebe1b30c | 243 | adapter->dcb_set_bitmap |= BIT_PG_TX; |
2f90b865 AD |
244 | } |
245 | ||
246 | static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, | |
247 | u8 prio, u8 bwg_id, u8 bw_pct, | |
248 | u8 up_map) | |
249 | { | |
250 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
251 | ||
252 | if (prio != DCB_ATTR_VALUE_UNDEFINED) | |
253 | adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio; | |
254 | if (bwg_id != DCB_ATTR_VALUE_UNDEFINED) | |
255 | adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id; | |
256 | if (bw_pct != DCB_ATTR_VALUE_UNDEFINED) | |
257 | adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent = | |
258 | bw_pct; | |
259 | if (up_map != DCB_ATTR_VALUE_UNDEFINED) | |
260 | adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap = | |
261 | up_map; | |
262 | ||
263 | if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type != | |
264 | adapter->dcb_cfg.tc_config[tc].path[1].prio_type) || | |
265 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id != | |
266 | adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) || | |
267 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent != | |
268 | adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) || | |
269 | (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != | |
d43f5c21 | 270 | adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) |
2f90b865 AD |
271 | adapter->dcb_set_bitmap |= BIT_PG_RX; |
272 | } | |
273 | ||
274 | static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, | |
275 | u8 bw_pct) | |
276 | { | |
277 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
278 | ||
279 | adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct; | |
280 | ||
281 | if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] != | |
d43f5c21 | 282 | adapter->dcb_cfg.bw_percentage[1][bwg_id]) |
2f90b865 AD |
283 | adapter->dcb_set_bitmap |= BIT_PG_RX; |
284 | } | |
285 | ||
286 | static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, | |
287 | u8 *prio, u8 *bwg_id, u8 *bw_pct, | |
288 | u8 *up_map) | |
289 | { | |
290 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
291 | ||
292 | *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type; | |
293 | *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id; | |
294 | *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent; | |
295 | *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap; | |
296 | } | |
297 | ||
298 | static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, | |
299 | u8 *bw_pct) | |
300 | { | |
301 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
302 | ||
303 | *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id]; | |
304 | } | |
305 | ||
306 | static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc, | |
307 | u8 *prio, u8 *bwg_id, u8 *bw_pct, | |
308 | u8 *up_map) | |
309 | { | |
310 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
311 | ||
312 | *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type; | |
313 | *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id; | |
314 | *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent; | |
315 | *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap; | |
316 | } | |
317 | ||
318 | static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, | |
319 | u8 *bw_pct) | |
320 | { | |
321 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
322 | ||
323 | *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id]; | |
324 | } | |
325 | ||
326 | static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority, | |
327 | u8 setting) | |
328 | { | |
329 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
330 | ||
331 | adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting; | |
332 | if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc != | |
ea4af4f4 | 333 | adapter->dcb_cfg.tc_config[priority].dcb_pfc) { |
2f90b865 | 334 | adapter->dcb_set_bitmap |= BIT_PFC; |
ea4af4f4 PW |
335 | adapter->temp_dcb_cfg.pfc_mode_enable = true; |
336 | } | |
2f90b865 AD |
337 | } |
338 | ||
339 | static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority, | |
340 | u8 *setting) | |
341 | { | |
342 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
343 | ||
344 | *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc; | |
345 | } | |
346 | ||
347 | static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) | |
348 | { | |
349 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
350 | int ret; | |
351 | ||
3032309b JF |
352 | if (!adapter->dcb_set_bitmap || |
353 | !(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)) | |
62551d3e | 354 | return DCB_NO_HW_CHG; |
2f90b865 | 355 | |
3ce1cc52 | 356 | ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
e5b64635 | 357 | MAX_TRAFFIC_CLASS); |
3ce1cc52 JF |
358 | |
359 | if (ret) | |
360 | return DCB_NO_HW_CHG; | |
361 | ||
62551d3e | 362 | /* |
25985edc | 363 | * Only take down the adapter if an app change occurred. FCoE |
d37e1d0e JF |
364 | * may shuffle tx rings in this case and this can not be done |
365 | * without a reset currently. | |
62551d3e | 366 | */ |
d37e1d0e | 367 | if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { |
62551d3e PWJ |
368 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
369 | msleep(1); | |
2f90b865 | 370 | |
d37e1d0e JF |
371 | if (netif_running(netdev)) |
372 | netdev->netdev_ops->ndo_stop(netdev); | |
373 | ixgbe_clear_interrupt_scheme(adapter); | |
62551d3e | 374 | } |
2f90b865 | 375 | |
264857b8 | 376 | if (adapter->dcb_cfg.pfc_mode_enable) { |
b93a2226 DS |
377 | switch (adapter->hw.mac.type) { |
378 | case ixgbe_mac_82599EB: | |
379 | case ixgbe_mac_X540: | |
380 | if (adapter->hw.fc.current_mode != ixgbe_fc_pfc) | |
381 | adapter->last_lfc_mode = | |
382 | adapter->hw.fc.current_mode; | |
383 | break; | |
384 | default: | |
385 | break; | |
386 | } | |
264857b8 PWJ |
387 | adapter->hw.fc.requested_mode = ixgbe_fc_pfc; |
388 | } else { | |
b93a2226 DS |
389 | switch (adapter->hw.mac.type) { |
390 | case ixgbe_mac_82598EB: | |
264857b8 | 391 | adapter->hw.fc.requested_mode = ixgbe_fc_none; |
b93a2226 DS |
392 | break; |
393 | case ixgbe_mac_82599EB: | |
394 | case ixgbe_mac_X540: | |
395 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | |
396 | break; | |
397 | default: | |
398 | break; | |
399 | } | |
264857b8 PWJ |
400 | } |
401 | ||
d37e1d0e JF |
402 | if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { |
403 | ixgbe_init_interrupt_scheme(adapter); | |
404 | if (netif_running(netdev)) | |
405 | netdev->netdev_ops->ndo_open(netdev); | |
62551d3e | 406 | ret = DCB_HW_CHG_RST; |
d43f5c21 JF |
407 | } |
408 | ||
409 | if (adapter->dcb_set_bitmap & BIT_PFC) { | |
55320cb5 JF |
410 | u8 pfc_en; |
411 | ixgbe_dcb_unpack_pfc(&adapter->dcb_cfg, &pfc_en); | |
5977deaa | 412 | ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc_en); |
62551d3e PWJ |
413 | ret = DCB_HW_CHG; |
414 | } | |
d43f5c21 JF |
415 | |
416 | if (adapter->dcb_set_bitmap & (BIT_PG_TX|BIT_PG_RX)) { | |
417 | u16 refill[MAX_TRAFFIC_CLASS], max[MAX_TRAFFIC_CLASS]; | |
418 | u8 bwg_id[MAX_TRAFFIC_CLASS], prio_type[MAX_TRAFFIC_CLASS]; | |
17049d30 JF |
419 | /* Priority to TC mapping in CEE case default to 1:1 */ |
420 | u8 prio_tc[MAX_TRAFFIC_CLASS] = {0, 1, 2, 3, 4, 5, 6, 7}; | |
d43f5c21 JF |
421 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
422 | ||
423 | #ifdef CONFIG_FCOE | |
424 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) | |
425 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
426 | #endif | |
427 | ||
428 | ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg, | |
429 | max_frame, DCB_TX_CONFIG); | |
430 | ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg, | |
431 | max_frame, DCB_RX_CONFIG); | |
432 | ||
433 | ixgbe_dcb_unpack_refill(&adapter->dcb_cfg, | |
434 | DCB_TX_CONFIG, refill); | |
435 | ixgbe_dcb_unpack_max(&adapter->dcb_cfg, max); | |
436 | ixgbe_dcb_unpack_bwgid(&adapter->dcb_cfg, | |
437 | DCB_TX_CONFIG, bwg_id); | |
438 | ixgbe_dcb_unpack_prio(&adapter->dcb_cfg, | |
439 | DCB_TX_CONFIG, prio_type); | |
440 | ||
441 | ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max, | |
17049d30 | 442 | bwg_id, prio_type, prio_tc); |
d43f5c21 JF |
443 | } |
444 | ||
264857b8 PWJ |
445 | if (adapter->dcb_cfg.pfc_mode_enable) |
446 | adapter->hw.fc.current_mode = ixgbe_fc_pfc; | |
447 | ||
d37e1d0e | 448 | if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) |
62551d3e | 449 | clear_bit(__IXGBE_RESETTING, &adapter->state); |
2f90b865 | 450 | adapter->dcb_set_bitmap = 0x00; |
2f90b865 AD |
451 | return ret; |
452 | } | |
453 | ||
46132188 AD |
454 | static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap) |
455 | { | |
456 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
46132188 | 457 | |
3032309b JF |
458 | switch (capid) { |
459 | case DCB_CAP_ATTR_PG: | |
460 | *cap = true; | |
461 | break; | |
462 | case DCB_CAP_ATTR_PFC: | |
463 | *cap = true; | |
464 | break; | |
465 | case DCB_CAP_ATTR_UP2TC: | |
466 | *cap = false; | |
467 | break; | |
468 | case DCB_CAP_ATTR_PG_TCS: | |
469 | *cap = 0x80; | |
470 | break; | |
471 | case DCB_CAP_ATTR_PFC_TCS: | |
472 | *cap = 0x80; | |
473 | break; | |
474 | case DCB_CAP_ATTR_GSP: | |
475 | *cap = true; | |
476 | break; | |
477 | case DCB_CAP_ATTR_BCN: | |
478 | *cap = false; | |
479 | break; | |
480 | case DCB_CAP_ATTR_DCBX: | |
481 | *cap = adapter->dcbx_cap; | |
482 | break; | |
483 | default: | |
484 | *cap = false; | |
485 | break; | |
46132188 AD |
486 | } |
487 | ||
3032309b | 488 | return 0; |
46132188 AD |
489 | } |
490 | ||
33dbabc4 AD |
491 | static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num) |
492 | { | |
493 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
494 | u8 rval = 0; | |
495 | ||
496 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
497 | switch (tcid) { | |
498 | case DCB_NUMTCS_ATTR_PG: | |
499 | *num = MAX_TRAFFIC_CLASS; | |
500 | break; | |
501 | case DCB_NUMTCS_ATTR_PFC: | |
502 | *num = MAX_TRAFFIC_CLASS; | |
503 | break; | |
504 | default: | |
505 | rval = -EINVAL; | |
506 | break; | |
507 | } | |
508 | } else { | |
509 | rval = -EINVAL; | |
510 | } | |
511 | ||
512 | return rval; | |
513 | } | |
514 | ||
515 | static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num) | |
516 | { | |
517 | return -EINVAL; | |
518 | } | |
519 | ||
0eb3aa9b AD |
520 | static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev) |
521 | { | |
522 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
523 | ||
264857b8 | 524 | return adapter->dcb_cfg.pfc_mode_enable; |
0eb3aa9b AD |
525 | } |
526 | ||
527 | static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state) | |
528 | { | |
264857b8 PWJ |
529 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
530 | ||
531 | adapter->temp_dcb_cfg.pfc_mode_enable = state; | |
532 | if (adapter->temp_dcb_cfg.pfc_mode_enable != | |
533 | adapter->dcb_cfg.pfc_mode_enable) | |
534 | adapter->dcb_set_bitmap |= BIT_PFC; | |
0eb3aa9b AD |
535 | } |
536 | ||
6ee16520 YZ |
537 | /** |
538 | * ixgbe_dcbnl_getapp - retrieve the DCBX application user priority | |
539 | * @netdev : the corresponding netdev | |
540 | * @idtype : identifies the id as ether type or TCP/UDP port number | |
541 | * @id: id is either ether type or TCP/UDP port number | |
542 | * | |
543 | * Returns : on success, returns a non-zero 802.1p user priority bitmap | |
544 | * otherwise returns 0 as the invalid user priority bitmap to indicate an | |
545 | * error. | |
546 | */ | |
547 | static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id) | |
548 | { | |
3032309b | 549 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
dc166e22 JF |
550 | struct dcb_app app = { |
551 | .selector = idtype, | |
552 | .protocol = id, | |
553 | }; | |
6ee16520 | 554 | |
3032309b | 555 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)) |
dc166e22 | 556 | return 0; |
3032309b | 557 | |
dc166e22 | 558 | return dcb_getapp(netdev, &app); |
6ee16520 YZ |
559 | } |
560 | ||
561 | /** | |
562 | * ixgbe_dcbnl_setapp - set the DCBX application user priority | |
563 | * @netdev : the corresponding netdev | |
564 | * @idtype : identifies the id as ether type or TCP/UDP port number | |
565 | * @id: id is either ether type or TCP/UDP port number | |
566 | * @up: the 802.1p user priority bitmap | |
567 | * | |
568 | * Returns : 0 on success or 1 on error | |
569 | */ | |
570 | static u8 ixgbe_dcbnl_setapp(struct net_device *netdev, | |
571 | u8 idtype, u16 id, u8 up) | |
572 | { | |
3032309b | 573 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
6ee16520 | 574 | u8 rval = 1; |
dc166e22 JF |
575 | struct dcb_app app = { |
576 | .selector = idtype, | |
577 | .protocol = id, | |
578 | .priority = up | |
579 | }; | |
6ee16520 | 580 | |
3032309b JF |
581 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE)) |
582 | return rval; | |
583 | ||
dc166e22 JF |
584 | rval = dcb_setapp(netdev, &app); |
585 | ||
6ee16520 YZ |
586 | switch (idtype) { |
587 | case DCB_APP_IDTYPE_ETHTYPE: | |
588 | #ifdef IXGBE_FCOE | |
8de8b2e6 | 589 | if (id == ETH_P_FCOE) { |
53bb9f80 | 590 | u8 old_tc; |
8de8b2e6 | 591 | |
53bb9f80 JF |
592 | /* Get current programmed tc */ |
593 | old_tc = adapter->fcoe.tc; | |
8de8b2e6 | 594 | rval = ixgbe_fcoe_setapp(adapter, up); |
53bb9f80 JF |
595 | |
596 | if (rval || | |
597 | !(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || | |
598 | !(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) | |
599 | break; | |
600 | ||
601 | /* The FCoE application priority may be changed multiple | |
25985edc | 602 | * times in quick succession with switches that build up |
53bb9f80 JF |
603 | * TLVs. To avoid creating uneeded device resets this |
604 | * checks the actual HW configuration and clears | |
605 | * BIT_APP_UPCHG if a HW configuration change is not | |
606 | * need | |
607 | */ | |
608 | if (old_tc == adapter->fcoe.tc) | |
609 | adapter->dcb_set_bitmap &= ~BIT_APP_UPCHG; | |
610 | else | |
8de8b2e6 | 611 | adapter->dcb_set_bitmap |= BIT_APP_UPCHG; |
8de8b2e6 | 612 | } |
6ee16520 YZ |
613 | #endif |
614 | break; | |
615 | case DCB_APP_IDTYPE_PORTNUM: | |
616 | break; | |
617 | default: | |
618 | break; | |
619 | } | |
620 | return rval; | |
621 | } | |
622 | ||
d033d526 JF |
623 | static int ixgbe_dcbnl_ieee_getets(struct net_device *dev, |
624 | struct ieee_ets *ets) | |
625 | { | |
626 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
627 | struct ieee_ets *my_ets = adapter->ixgbe_ieee_ets; | |
628 | ||
629 | /* No IEEE PFC settings available */ | |
630 | if (!my_ets) | |
631 | return -EINVAL; | |
632 | ||
633 | ets->ets_cap = MAX_TRAFFIC_CLASS; | |
634 | ets->cbs = my_ets->cbs; | |
635 | memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw)); | |
636 | memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw)); | |
637 | memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa)); | |
638 | memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc)); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | static int ixgbe_dcbnl_ieee_setets(struct net_device *dev, | |
643 | struct ieee_ets *ets) | |
644 | { | |
645 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
646 | __u16 refill[IEEE_8021QAZ_MAX_TCS], max[IEEE_8021QAZ_MAX_TCS]; | |
3b97fd69 | 647 | __u8 prio_type[IEEE_8021QAZ_MAX_TCS]; |
d033d526 | 648 | int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN; |
3b97fd69 | 649 | int i, err; |
17049d30 | 650 | __u64 *p = (__u64 *) ets->prio_tc; |
d033d526 JF |
651 | /* naively give each TC a bwg to map onto CEE hardware */ |
652 | __u8 bwg_id[IEEE_8021QAZ_MAX_TCS] = {0, 1, 2, 3, 4, 5, 6, 7}; | |
653 | ||
3032309b JF |
654 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) |
655 | return -EINVAL; | |
656 | ||
d033d526 JF |
657 | if (!adapter->ixgbe_ieee_ets) { |
658 | adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets), | |
659 | GFP_KERNEL); | |
660 | if (!adapter->ixgbe_ieee_ets) | |
661 | return -ENOMEM; | |
662 | } | |
663 | ||
d033d526 JF |
664 | memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets)); |
665 | ||
3b97fd69 JF |
666 | /* Map TSA onto CEE prio type */ |
667 | for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { | |
668 | switch (ets->tc_tsa[i]) { | |
669 | case IEEE_8021QAZ_TSA_STRICT: | |
670 | prio_type[i] = 2; | |
671 | break; | |
672 | case IEEE_8021QAZ_TSA_ETS: | |
673 | prio_type[i] = 0; | |
674 | break; | |
675 | default: | |
676 | /* Hardware only supports priority strict or | |
677 | * ETS transmission selection algorithms if | |
678 | * we receive some other value from dcbnl | |
679 | * throw an error | |
680 | */ | |
681 | return -EINVAL; | |
682 | } | |
683 | } | |
684 | ||
17049d30 JF |
685 | if (*p) |
686 | ixgbe_dcbnl_set_state(dev, 1); | |
687 | else | |
688 | ixgbe_dcbnl_set_state(dev, 0); | |
689 | ||
d033d526 JF |
690 | ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame); |
691 | err = ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max, | |
17049d30 | 692 | bwg_id, prio_type, ets->prio_tc); |
d033d526 JF |
693 | return err; |
694 | } | |
695 | ||
696 | static int ixgbe_dcbnl_ieee_getpfc(struct net_device *dev, | |
697 | struct ieee_pfc *pfc) | |
698 | { | |
699 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
700 | struct ieee_pfc *my_pfc = adapter->ixgbe_ieee_pfc; | |
701 | int i; | |
702 | ||
703 | /* No IEEE PFC settings available */ | |
704 | if (!my_pfc) | |
705 | return -EINVAL; | |
706 | ||
707 | pfc->pfc_cap = MAX_TRAFFIC_CLASS; | |
708 | pfc->pfc_en = my_pfc->pfc_en; | |
709 | pfc->mbc = my_pfc->mbc; | |
710 | pfc->delay = my_pfc->delay; | |
711 | ||
712 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
713 | pfc->requests[i] = adapter->stats.pxoffrxc[i]; | |
714 | pfc->indications[i] = adapter->stats.pxofftxc[i]; | |
715 | } | |
716 | ||
717 | return 0; | |
718 | } | |
719 | ||
720 | static int ixgbe_dcbnl_ieee_setpfc(struct net_device *dev, | |
721 | struct ieee_pfc *pfc) | |
722 | { | |
723 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
724 | int err; | |
725 | ||
3032309b JF |
726 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) |
727 | return -EINVAL; | |
728 | ||
d033d526 JF |
729 | if (!adapter->ixgbe_ieee_pfc) { |
730 | adapter->ixgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc), | |
731 | GFP_KERNEL); | |
732 | if (!adapter->ixgbe_ieee_pfc) | |
733 | return -ENOMEM; | |
734 | } | |
735 | ||
736 | memcpy(adapter->ixgbe_ieee_pfc, pfc, sizeof(*adapter->ixgbe_ieee_pfc)); | |
737 | err = ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc->pfc_en); | |
738 | return err; | |
739 | } | |
740 | ||
f8628d40 JF |
741 | static int ixgbe_dcbnl_ieee_setapp(struct net_device *dev, |
742 | struct dcb_app *app) | |
743 | { | |
744 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
745 | ||
746 | if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) | |
747 | return -EINVAL; | |
748 | #ifdef IXGBE_FCOE | |
749 | if (app->selector == 1 && app->protocol == ETH_P_FCOE) { | |
750 | if (adapter->fcoe.tc == app->priority) | |
751 | goto setapp; | |
752 | ||
753 | /* In IEEE mode map up to tc 1:1 */ | |
754 | adapter->fcoe.tc = app->priority; | |
755 | adapter->fcoe.up = app->priority; | |
756 | ||
757 | /* Force hardware reset required to push FCoE | |
758 | * setup on {tx|rx}_rings | |
759 | */ | |
760 | adapter->dcb_set_bitmap |= BIT_APP_UPCHG; | |
761 | ixgbe_dcbnl_set_all(dev); | |
762 | } | |
763 | ||
764 | setapp: | |
765 | #endif | |
766 | dcb_setapp(dev, app); | |
767 | return 0; | |
768 | } | |
769 | ||
3032309b JF |
770 | static u8 ixgbe_dcbnl_getdcbx(struct net_device *dev) |
771 | { | |
772 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
773 | return adapter->dcbx_cap; | |
774 | } | |
775 | ||
776 | static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode) | |
777 | { | |
778 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
779 | struct ieee_ets ets = {0}; | |
780 | struct ieee_pfc pfc = {0}; | |
781 | ||
782 | /* no support for LLD_MANAGED modes or CEE+IEEE */ | |
783 | if ((mode & DCB_CAP_DCBX_LLD_MANAGED) || | |
784 | ((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) || | |
785 | !(mode & DCB_CAP_DCBX_HOST)) | |
786 | return 1; | |
787 | ||
788 | if (mode == adapter->dcbx_cap) | |
789 | return 0; | |
790 | ||
791 | adapter->dcbx_cap = mode; | |
792 | ||
793 | /* ETS and PFC defaults */ | |
794 | ets.ets_cap = 8; | |
795 | pfc.pfc_cap = 8; | |
796 | ||
797 | if (mode & DCB_CAP_DCBX_VER_IEEE) { | |
798 | ixgbe_dcbnl_ieee_setets(dev, &ets); | |
799 | ixgbe_dcbnl_ieee_setpfc(dev, &pfc); | |
800 | } else if (mode & DCB_CAP_DCBX_VER_CEE) { | |
801 | adapter->dcb_set_bitmap |= (BIT_PFC & BIT_PG_TX & BIT_PG_RX); | |
802 | ixgbe_dcbnl_set_all(dev); | |
803 | } else { | |
804 | /* Drop into single TC mode strict priority as this | |
805 | * indicates CEE and IEEE versions are disabled | |
806 | */ | |
807 | ixgbe_dcbnl_ieee_setets(dev, &ets); | |
808 | ixgbe_dcbnl_ieee_setpfc(dev, &pfc); | |
809 | ixgbe_dcbnl_set_state(dev, 0); | |
810 | } | |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
32953543 | 815 | const struct dcbnl_rtnl_ops dcbnl_ops = { |
d033d526 JF |
816 | .ieee_getets = ixgbe_dcbnl_ieee_getets, |
817 | .ieee_setets = ixgbe_dcbnl_ieee_setets, | |
818 | .ieee_getpfc = ixgbe_dcbnl_ieee_getpfc, | |
819 | .ieee_setpfc = ixgbe_dcbnl_ieee_setpfc, | |
f8628d40 | 820 | .ieee_setapp = ixgbe_dcbnl_ieee_setapp, |
2f90b865 AD |
821 | .getstate = ixgbe_dcbnl_get_state, |
822 | .setstate = ixgbe_dcbnl_set_state, | |
823 | .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr, | |
824 | .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx, | |
825 | .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx, | |
826 | .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx, | |
827 | .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx, | |
828 | .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx, | |
829 | .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx, | |
830 | .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx, | |
831 | .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx, | |
832 | .setpfccfg = ixgbe_dcbnl_set_pfc_cfg, | |
833 | .getpfccfg = ixgbe_dcbnl_get_pfc_cfg, | |
46132188 | 834 | .setall = ixgbe_dcbnl_set_all, |
33dbabc4 AD |
835 | .getcap = ixgbe_dcbnl_getcap, |
836 | .getnumtcs = ixgbe_dcbnl_getnumtcs, | |
0eb3aa9b AD |
837 | .setnumtcs = ixgbe_dcbnl_setnumtcs, |
838 | .getpfcstate = ixgbe_dcbnl_getpfcstate, | |
859ee3c4 | 839 | .setpfcstate = ixgbe_dcbnl_setpfcstate, |
6ee16520 YZ |
840 | .getapp = ixgbe_dcbnl_getapp, |
841 | .setapp = ixgbe_dcbnl_setapp, | |
3032309b JF |
842 | .getdcbx = ixgbe_dcbnl_getdcbx, |
843 | .setdcbx = ixgbe_dcbnl_setdcbx, | |
2f90b865 | 844 | }; |