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bc7f75fa AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel PRO/1000 Linux driver | |
c7e54b1b | 4 | Copyright(c) 1999 - 2009 Intel Corporation. |
bc7f75fa AK |
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 <linux/netdevice.h> | |
44defeb3 | 30 | #include <linux/pci.h> |
bc7f75fa AK |
31 | |
32 | #include "e1000.h" | |
33 | ||
ad68076e BA |
34 | /* |
35 | * This is the only thing that needs to be changed to adjust the | |
bc7f75fa AK |
36 | * maximum number of ports that the driver can manage. |
37 | */ | |
38 | ||
39 | #define E1000_MAX_NIC 32 | |
40 | ||
41 | #define OPTION_UNSET -1 | |
42 | #define OPTION_DISABLED 0 | |
43 | #define OPTION_ENABLED 1 | |
44 | ||
45 | #define COPYBREAK_DEFAULT 256 | |
46 | unsigned int copybreak = COPYBREAK_DEFAULT; | |
47 | module_param(copybreak, uint, 0644); | |
48 | MODULE_PARM_DESC(copybreak, | |
49 | "Maximum size of packet that is copied to a new buffer on receive"); | |
50 | ||
ad68076e BA |
51 | /* |
52 | * All parameters are treated the same, as an integer array of values. | |
bc7f75fa AK |
53 | * This macro just reduces the need to repeat the same declaration code |
54 | * over and over (plus this helps to avoid typo bugs). | |
55 | */ | |
56 | ||
57 | #define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET } | |
5a9147bb SH |
58 | #define E1000_PARAM(X, desc) \ |
59 | static int __devinitdata X[E1000_MAX_NIC+1] \ | |
60 | = E1000_PARAM_INIT; \ | |
61 | static unsigned int num_##X; \ | |
62 | module_param_array_named(X, X, int, &num_##X, 0); \ | |
bc7f75fa AK |
63 | MODULE_PARM_DESC(X, desc); |
64 | ||
65 | ||
ad68076e BA |
66 | /* |
67 | * Transmit Interrupt Delay in units of 1.024 microseconds | |
68 | * Tx interrupt delay needs to typically be set to something non zero | |
bc7f75fa AK |
69 | * |
70 | * Valid Range: 0-65535 | |
71 | */ | |
72 | E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay"); | |
73 | #define DEFAULT_TIDV 8 | |
74 | #define MAX_TXDELAY 0xFFFF | |
75 | #define MIN_TXDELAY 0 | |
76 | ||
ad68076e BA |
77 | /* |
78 | * Transmit Absolute Interrupt Delay in units of 1.024 microseconds | |
bc7f75fa AK |
79 | * |
80 | * Valid Range: 0-65535 | |
81 | */ | |
82 | E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay"); | |
83 | #define DEFAULT_TADV 32 | |
84 | #define MAX_TXABSDELAY 0xFFFF | |
85 | #define MIN_TXABSDELAY 0 | |
86 | ||
ad68076e BA |
87 | /* |
88 | * Receive Interrupt Delay in units of 1.024 microseconds | |
89 | * hardware will likely hang if you set this to anything but zero. | |
bc7f75fa AK |
90 | * |
91 | * Valid Range: 0-65535 | |
92 | */ | |
93 | E1000_PARAM(RxIntDelay, "Receive Interrupt Delay"); | |
94 | #define DEFAULT_RDTR 0 | |
95 | #define MAX_RXDELAY 0xFFFF | |
96 | #define MIN_RXDELAY 0 | |
97 | ||
ad68076e BA |
98 | /* |
99 | * Receive Absolute Interrupt Delay in units of 1.024 microseconds | |
bc7f75fa AK |
100 | * |
101 | * Valid Range: 0-65535 | |
102 | */ | |
103 | E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay"); | |
104 | #define DEFAULT_RADV 8 | |
105 | #define MAX_RXABSDELAY 0xFFFF | |
106 | #define MIN_RXABSDELAY 0 | |
107 | ||
ad68076e BA |
108 | /* |
109 | * Interrupt Throttle Rate (interrupts/sec) | |
bc7f75fa AK |
110 | * |
111 | * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative) | |
112 | */ | |
113 | E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate"); | |
114 | #define DEFAULT_ITR 3 | |
115 | #define MAX_ITR 100000 | |
116 | #define MIN_ITR 100 | |
4662e82b BA |
117 | /* IntMode (Interrupt Mode) |
118 | * | |
119 | * Valid Range: 0 - 2 | |
120 | * | |
121 | * Default Value: 2 (MSI-X) | |
122 | */ | |
123 | E1000_PARAM(IntMode, "Interrupt Mode"); | |
124 | #define MAX_INTMODE 2 | |
125 | #define MIN_INTMODE 0 | |
bc7f75fa | 126 | |
ad68076e BA |
127 | /* |
128 | * Enable Smart Power Down of the PHY | |
bc7f75fa AK |
129 | * |
130 | * Valid Range: 0, 1 | |
131 | * | |
132 | * Default Value: 0 (disabled) | |
133 | */ | |
134 | E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down"); | |
135 | ||
ad68076e BA |
136 | /* |
137 | * Enable Kumeran Lock Loss workaround | |
bc7f75fa AK |
138 | * |
139 | * Valid Range: 0, 1 | |
140 | * | |
141 | * Default Value: 1 (enabled) | |
142 | */ | |
143 | E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround"); | |
144 | ||
4a770358 BA |
145 | /* |
146 | * Write Protect NVM | |
147 | * | |
148 | * Valid Range: 0, 1 | |
149 | * | |
150 | * Default Value: 1 (enabled) | |
151 | */ | |
152 | E1000_PARAM(WriteProtectNVM, "Write-protect NVM [WARNING: disabling this can lead to corrupted NVM]"); | |
153 | ||
eb7c3adb JK |
154 | /* |
155 | * Enable CRC Stripping | |
156 | * | |
157 | * Valid Range: 0, 1 | |
158 | * | |
159 | * Default Value: 1 (enabled) | |
160 | */ | |
161 | E1000_PARAM(CrcStripping, "Enable CRC Stripping, disable if your BMC needs " \ | |
162 | "the CRC"); | |
163 | ||
bc7f75fa AK |
164 | struct e1000_option { |
165 | enum { enable_option, range_option, list_option } type; | |
5a9147bb SH |
166 | const char *name; |
167 | const char *err; | |
168 | int def; | |
bc7f75fa AK |
169 | union { |
170 | struct { /* range_option info */ | |
171 | int min; | |
172 | int max; | |
173 | } r; | |
174 | struct { /* list_option info */ | |
175 | int nr; | |
176 | struct e1000_opt_list { int i; char *str; } *p; | |
177 | } l; | |
178 | } arg; | |
179 | }; | |
180 | ||
5a9147bb SH |
181 | static int __devinit e1000_validate_option(unsigned int *value, |
182 | const struct e1000_option *opt, | |
bc7f75fa AK |
183 | struct e1000_adapter *adapter) |
184 | { | |
185 | if (*value == OPTION_UNSET) { | |
186 | *value = opt->def; | |
187 | return 0; | |
188 | } | |
189 | ||
190 | switch (opt->type) { | |
191 | case enable_option: | |
192 | switch (*value) { | |
193 | case OPTION_ENABLED: | |
44defeb3 | 194 | e_info("%s Enabled\n", opt->name); |
bc7f75fa AK |
195 | return 0; |
196 | case OPTION_DISABLED: | |
44defeb3 | 197 | e_info("%s Disabled\n", opt->name); |
bc7f75fa AK |
198 | return 0; |
199 | } | |
200 | break; | |
201 | case range_option: | |
202 | if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) { | |
44defeb3 | 203 | e_info("%s set to %i\n", opt->name, *value); |
bc7f75fa AK |
204 | return 0; |
205 | } | |
206 | break; | |
207 | case list_option: { | |
208 | int i; | |
209 | struct e1000_opt_list *ent; | |
210 | ||
211 | for (i = 0; i < opt->arg.l.nr; i++) { | |
212 | ent = &opt->arg.l.p[i]; | |
213 | if (*value == ent->i) { | |
214 | if (ent->str[0] != '\0') | |
44defeb3 | 215 | e_info("%s\n", ent->str); |
bc7f75fa AK |
216 | return 0; |
217 | } | |
218 | } | |
219 | } | |
220 | break; | |
221 | default: | |
222 | BUG(); | |
223 | } | |
224 | ||
44defeb3 JK |
225 | e_info("Invalid %s value specified (%i) %s\n", opt->name, *value, |
226 | opt->err); | |
bc7f75fa AK |
227 | *value = opt->def; |
228 | return -1; | |
229 | } | |
230 | ||
231 | /** | |
232 | * e1000e_check_options - Range Checking for Command Line Parameters | |
233 | * @adapter: board private structure | |
234 | * | |
235 | * This routine checks all command line parameters for valid user | |
236 | * input. If an invalid value is given, or if no user specified | |
237 | * value exists, a default value is used. The final value is stored | |
238 | * in a variable in the adapter structure. | |
239 | **/ | |
240 | void __devinit e1000e_check_options(struct e1000_adapter *adapter) | |
241 | { | |
242 | struct e1000_hw *hw = &adapter->hw; | |
bc7f75fa AK |
243 | int bd = adapter->bd_number; |
244 | ||
245 | if (bd >= E1000_MAX_NIC) { | |
44defeb3 JK |
246 | e_notice("Warning: no configuration for board #%i\n", bd); |
247 | e_notice("Using defaults for all values\n"); | |
bc7f75fa AK |
248 | } |
249 | ||
250 | { /* Transmit Interrupt Delay */ | |
6f59d660 | 251 | static const struct e1000_option opt = { |
bc7f75fa AK |
252 | .type = range_option, |
253 | .name = "Transmit Interrupt Delay", | |
254 | .err = "using default of " | |
255 | __MODULE_STRING(DEFAULT_TIDV), | |
256 | .def = DEFAULT_TIDV, | |
257 | .arg = { .r = { .min = MIN_TXDELAY, | |
258 | .max = MAX_TXDELAY } } | |
259 | }; | |
260 | ||
261 | if (num_TxIntDelay > bd) { | |
262 | adapter->tx_int_delay = TxIntDelay[bd]; | |
263 | e1000_validate_option(&adapter->tx_int_delay, &opt, | |
264 | adapter); | |
265 | } else { | |
266 | adapter->tx_int_delay = opt.def; | |
267 | } | |
268 | } | |
269 | { /* Transmit Absolute Interrupt Delay */ | |
6f59d660 | 270 | static const struct e1000_option opt = { |
bc7f75fa AK |
271 | .type = range_option, |
272 | .name = "Transmit Absolute Interrupt Delay", | |
273 | .err = "using default of " | |
274 | __MODULE_STRING(DEFAULT_TADV), | |
275 | .def = DEFAULT_TADV, | |
276 | .arg = { .r = { .min = MIN_TXABSDELAY, | |
277 | .max = MAX_TXABSDELAY } } | |
278 | }; | |
279 | ||
280 | if (num_TxAbsIntDelay > bd) { | |
281 | adapter->tx_abs_int_delay = TxAbsIntDelay[bd]; | |
282 | e1000_validate_option(&adapter->tx_abs_int_delay, &opt, | |
283 | adapter); | |
284 | } else { | |
285 | adapter->tx_abs_int_delay = opt.def; | |
286 | } | |
287 | } | |
288 | { /* Receive Interrupt Delay */ | |
289 | struct e1000_option opt = { | |
290 | .type = range_option, | |
291 | .name = "Receive Interrupt Delay", | |
292 | .err = "using default of " | |
293 | __MODULE_STRING(DEFAULT_RDTR), | |
294 | .def = DEFAULT_RDTR, | |
295 | .arg = { .r = { .min = MIN_RXDELAY, | |
296 | .max = MAX_RXDELAY } } | |
297 | }; | |
298 | ||
bc7f75fa AK |
299 | if (num_RxIntDelay > bd) { |
300 | adapter->rx_int_delay = RxIntDelay[bd]; | |
301 | e1000_validate_option(&adapter->rx_int_delay, &opt, | |
302 | adapter); | |
303 | } else { | |
304 | adapter->rx_int_delay = opt.def; | |
305 | } | |
306 | } | |
307 | { /* Receive Absolute Interrupt Delay */ | |
6f59d660 | 308 | static const struct e1000_option opt = { |
bc7f75fa AK |
309 | .type = range_option, |
310 | .name = "Receive Absolute Interrupt Delay", | |
311 | .err = "using default of " | |
312 | __MODULE_STRING(DEFAULT_RADV), | |
313 | .def = DEFAULT_RADV, | |
314 | .arg = { .r = { .min = MIN_RXABSDELAY, | |
315 | .max = MAX_RXABSDELAY } } | |
316 | }; | |
317 | ||
318 | if (num_RxAbsIntDelay > bd) { | |
319 | adapter->rx_abs_int_delay = RxAbsIntDelay[bd]; | |
320 | e1000_validate_option(&adapter->rx_abs_int_delay, &opt, | |
321 | adapter); | |
322 | } else { | |
323 | adapter->rx_abs_int_delay = opt.def; | |
324 | } | |
325 | } | |
326 | { /* Interrupt Throttling Rate */ | |
6f59d660 | 327 | static const struct e1000_option opt = { |
bc7f75fa AK |
328 | .type = range_option, |
329 | .name = "Interrupt Throttling Rate (ints/sec)", | |
330 | .err = "using default of " | |
331 | __MODULE_STRING(DEFAULT_ITR), | |
332 | .def = DEFAULT_ITR, | |
333 | .arg = { .r = { .min = MIN_ITR, | |
334 | .max = MAX_ITR } } | |
335 | }; | |
336 | ||
337 | if (num_InterruptThrottleRate > bd) { | |
338 | adapter->itr = InterruptThrottleRate[bd]; | |
339 | switch (adapter->itr) { | |
340 | case 0: | |
44defeb3 | 341 | e_info("%s turned off\n", opt.name); |
bc7f75fa AK |
342 | break; |
343 | case 1: | |
44defeb3 | 344 | e_info("%s set to dynamic mode\n", opt.name); |
bc7f75fa AK |
345 | adapter->itr_setting = adapter->itr; |
346 | adapter->itr = 20000; | |
347 | break; | |
348 | case 3: | |
44defeb3 | 349 | e_info("%s set to dynamic conservative mode\n", |
bc7f75fa AK |
350 | opt.name); |
351 | adapter->itr_setting = adapter->itr; | |
352 | adapter->itr = 20000; | |
353 | break; | |
354 | default: | |
bc7f75fa | 355 | /* |
2d06cad1 BA |
356 | * Save the setting, because the dynamic bits |
357 | * change itr. | |
bc7f75fa | 358 | */ |
2d06cad1 BA |
359 | if (e1000_validate_option(&adapter->itr, &opt, |
360 | adapter) && | |
361 | (adapter->itr == 3)) { | |
362 | /* | |
363 | * In case of invalid user value, | |
364 | * default to conservative mode. | |
365 | */ | |
366 | adapter->itr_setting = adapter->itr; | |
367 | adapter->itr = 20000; | |
368 | } else { | |
369 | /* | |
370 | * Clear the lower two bits because | |
371 | * they are used as control. | |
372 | */ | |
373 | adapter->itr_setting = | |
374 | adapter->itr & ~3; | |
375 | } | |
bc7f75fa AK |
376 | break; |
377 | } | |
378 | } else { | |
379 | adapter->itr_setting = opt.def; | |
380 | adapter->itr = 20000; | |
381 | } | |
382 | } | |
4662e82b BA |
383 | { /* Interrupt Mode */ |
384 | struct e1000_option opt = { | |
385 | .type = range_option, | |
386 | .name = "Interrupt Mode", | |
387 | .err = "defaulting to 2 (MSI-X)", | |
388 | .def = E1000E_INT_MODE_MSIX, | |
389 | .arg = { .r = { .min = MIN_INTMODE, | |
390 | .max = MAX_INTMODE } } | |
391 | }; | |
392 | ||
393 | if (num_IntMode > bd) { | |
394 | unsigned int int_mode = IntMode[bd]; | |
395 | e1000_validate_option(&int_mode, &opt, adapter); | |
396 | adapter->int_mode = int_mode; | |
397 | } else { | |
398 | adapter->int_mode = opt.def; | |
399 | } | |
400 | } | |
bc7f75fa | 401 | { /* Smart Power Down */ |
6f59d660 | 402 | static const struct e1000_option opt = { |
bc7f75fa AK |
403 | .type = enable_option, |
404 | .name = "PHY Smart Power Down", | |
405 | .err = "defaulting to Disabled", | |
406 | .def = OPTION_DISABLED | |
407 | }; | |
408 | ||
409 | if (num_SmartPowerDownEnable > bd) { | |
5a9147bb | 410 | unsigned int spd = SmartPowerDownEnable[bd]; |
bc7f75fa AK |
411 | e1000_validate_option(&spd, &opt, adapter); |
412 | if ((adapter->flags & FLAG_HAS_SMART_POWER_DOWN) | |
413 | && spd) | |
414 | adapter->flags |= FLAG_SMART_POWER_DOWN; | |
415 | } | |
416 | } | |
eb7c3adb | 417 | { /* CRC Stripping */ |
6f59d660 | 418 | static const struct e1000_option opt = { |
eb7c3adb JK |
419 | .type = enable_option, |
420 | .name = "CRC Stripping", | |
421 | .err = "defaulting to enabled", | |
422 | .def = OPTION_ENABLED | |
423 | }; | |
424 | ||
425 | if (num_CrcStripping > bd) { | |
426 | unsigned int crc_stripping = CrcStripping[bd]; | |
427 | e1000_validate_option(&crc_stripping, &opt, adapter); | |
428 | if (crc_stripping == OPTION_ENABLED) | |
429 | adapter->flags2 |= FLAG2_CRC_STRIPPING; | |
6e50912a BA |
430 | } else { |
431 | adapter->flags2 |= FLAG2_CRC_STRIPPING; | |
eb7c3adb JK |
432 | } |
433 | } | |
bc7f75fa | 434 | { /* Kumeran Lock Loss Workaround */ |
6f59d660 | 435 | static const struct e1000_option opt = { |
bc7f75fa AK |
436 | .type = enable_option, |
437 | .name = "Kumeran Lock Loss Workaround", | |
438 | .err = "defaulting to Enabled", | |
439 | .def = OPTION_ENABLED | |
440 | }; | |
441 | ||
442 | if (num_KumeranLockLoss > bd) { | |
5a9147bb | 443 | unsigned int kmrn_lock_loss = KumeranLockLoss[bd]; |
bc7f75fa AK |
444 | e1000_validate_option(&kmrn_lock_loss, &opt, adapter); |
445 | if (hw->mac.type == e1000_ich8lan) | |
446 | e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, | |
447 | kmrn_lock_loss); | |
448 | } else { | |
449 | if (hw->mac.type == e1000_ich8lan) | |
450 | e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, | |
451 | opt.def); | |
452 | } | |
453 | } | |
4a770358 | 454 | { /* Write-protect NVM */ |
6f59d660 | 455 | static const struct e1000_option opt = { |
4a770358 BA |
456 | .type = enable_option, |
457 | .name = "Write-protect NVM", | |
458 | .err = "defaulting to Enabled", | |
459 | .def = OPTION_ENABLED | |
460 | }; | |
461 | ||
462 | if (adapter->flags & FLAG_IS_ICH) { | |
463 | if (num_WriteProtectNVM > bd) { | |
464 | unsigned int write_protect_nvm = WriteProtectNVM[bd]; | |
465 | e1000_validate_option(&write_protect_nvm, &opt, | |
466 | adapter); | |
467 | if (write_protect_nvm) | |
468 | adapter->flags |= FLAG_READ_ONLY_NVM; | |
469 | } else { | |
470 | if (opt.def) | |
471 | adapter->flags |= FLAG_READ_ONLY_NVM; | |
472 | } | |
473 | } | |
474 | } | |
bc7f75fa | 475 | } |