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56a62fc8 JB |
1 | /******************************************************************************* |
2 | * | |
3 | * Intel Ethernet Controller XL710 Family Linux Driver | |
dc641b73 | 4 | * Copyright(c) 2013 - 2014 Intel Corporation. |
56a62fc8 JB |
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 | * | |
dc641b73 GR |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program. If not, see <http://www.gnu.org/licenses/>. | |
56a62fc8 JB |
17 | * |
18 | * The full GNU General Public License is included in this distribution in | |
19 | * the file called "COPYING". | |
20 | * | |
21 | * Contact Information: | |
22 | * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | ******************************************************************************/ | |
26 | ||
27 | #include "i40e_prototype.h" | |
28 | ||
29 | /** | |
3e26186d SN |
30 | * i40e_init_nvm_ops - Initialize NVM function pointers |
31 | * @hw: pointer to the HW structure | |
56a62fc8 | 32 | * |
3e26186d SN |
33 | * Setup the function pointers and the NVM info structure. Should be called |
34 | * once per NVM initialization, e.g. inside the i40e_init_shared_code(). | |
35 | * Please notice that the NVM term is used here (& in all methods covered | |
36 | * in this file) as an equivalent of the FLASH part mapped into the SR. | |
37 | * We are accessing FLASH always thru the Shadow RAM. | |
56a62fc8 JB |
38 | **/ |
39 | i40e_status i40e_init_nvm(struct i40e_hw *hw) | |
40 | { | |
41 | struct i40e_nvm_info *nvm = &hw->nvm; | |
42 | i40e_status ret_code = 0; | |
43 | u32 fla, gens; | |
44 | u8 sr_size; | |
45 | ||
46 | /* The SR size is stored regardless of the nvm programming mode | |
47 | * as the blank mode may be used in the factory line. | |
48 | */ | |
49 | gens = rd32(hw, I40E_GLNVM_GENS); | |
50 | sr_size = ((gens & I40E_GLNVM_GENS_SR_SIZE_MASK) >> | |
51 | I40E_GLNVM_GENS_SR_SIZE_SHIFT); | |
3e26186d | 52 | /* Switching to words (sr_size contains power of 2KB) */ |
56a62fc8 JB |
53 | nvm->sr_size = (1 << sr_size) * I40E_SR_WORDS_IN_1KB; |
54 | ||
3e26186d | 55 | /* Check if we are in the normal or blank NVM programming mode */ |
56a62fc8 | 56 | fla = rd32(hw, I40E_GLNVM_FLA); |
3e26186d SN |
57 | if (fla & I40E_GLNVM_FLA_LOCKED_MASK) { /* Normal programming mode */ |
58 | /* Max NVM timeout */ | |
56a62fc8 JB |
59 | nvm->timeout = I40E_MAX_NVM_TIMEOUT; |
60 | nvm->blank_nvm_mode = false; | |
3e26186d | 61 | } else { /* Blank programming mode */ |
56a62fc8 JB |
62 | nvm->blank_nvm_mode = true; |
63 | ret_code = I40E_ERR_NVM_BLANK_MODE; | |
74d0d0ed | 64 | i40e_debug(hw, I40E_DEBUG_NVM, "NVM init error: unsupported blank mode.\n"); |
56a62fc8 JB |
65 | } |
66 | ||
67 | return ret_code; | |
68 | } | |
69 | ||
70 | /** | |
3e26186d SN |
71 | * i40e_acquire_nvm - Generic request for acquiring the NVM ownership |
72 | * @hw: pointer to the HW structure | |
73 | * @access: NVM access type (read or write) | |
56a62fc8 | 74 | * |
3e26186d SN |
75 | * This function will request NVM ownership for reading |
76 | * via the proper Admin Command. | |
56a62fc8 JB |
77 | **/ |
78 | i40e_status i40e_acquire_nvm(struct i40e_hw *hw, | |
79 | enum i40e_aq_resource_access_type access) | |
80 | { | |
81 | i40e_status ret_code = 0; | |
82 | u64 gtime, timeout; | |
c509c1de | 83 | u64 time_left = 0; |
56a62fc8 JB |
84 | |
85 | if (hw->nvm.blank_nvm_mode) | |
86 | goto i40e_i40e_acquire_nvm_exit; | |
87 | ||
88 | ret_code = i40e_aq_request_resource(hw, I40E_NVM_RESOURCE_ID, access, | |
c509c1de | 89 | 0, &time_left, NULL); |
3e26186d | 90 | /* Reading the Global Device Timer */ |
56a62fc8 JB |
91 | gtime = rd32(hw, I40E_GLVFGEN_TIMER); |
92 | ||
3e26186d | 93 | /* Store the timeout */ |
c509c1de | 94 | hw->nvm.hw_semaphore_timeout = I40E_MS_TO_GTIME(time_left) + gtime; |
56a62fc8 | 95 | |
a3f0b381 SN |
96 | if (ret_code) |
97 | i40e_debug(hw, I40E_DEBUG_NVM, | |
98 | "NVM acquire type %d failed time_left=%llu ret=%d aq_err=%d\n", | |
99 | access, time_left, ret_code, hw->aq.asq_last_status); | |
100 | ||
101 | if (ret_code && time_left) { | |
3e26186d | 102 | /* Poll until the current NVM owner timeouts */ |
c509c1de | 103 | timeout = I40E_MS_TO_GTIME(I40E_MAX_NVM_TIMEOUT) + gtime; |
a3f0b381 | 104 | while ((gtime < timeout) && time_left) { |
56a62fc8 | 105 | usleep_range(10000, 20000); |
c509c1de | 106 | gtime = rd32(hw, I40E_GLVFGEN_TIMER); |
56a62fc8 JB |
107 | ret_code = i40e_aq_request_resource(hw, |
108 | I40E_NVM_RESOURCE_ID, | |
c509c1de | 109 | access, 0, &time_left, |
56a62fc8 JB |
110 | NULL); |
111 | if (!ret_code) { | |
112 | hw->nvm.hw_semaphore_timeout = | |
c509c1de | 113 | I40E_MS_TO_GTIME(time_left) + gtime; |
56a62fc8 JB |
114 | break; |
115 | } | |
56a62fc8 JB |
116 | } |
117 | if (ret_code) { | |
118 | hw->nvm.hw_semaphore_timeout = 0; | |
74d0d0ed | 119 | i40e_debug(hw, I40E_DEBUG_NVM, |
a3f0b381 SN |
120 | "NVM acquire timed out, wait %llu ms before trying again. status=%d aq_err=%d\n", |
121 | time_left, ret_code, hw->aq.asq_last_status); | |
56a62fc8 JB |
122 | } |
123 | } | |
124 | ||
125 | i40e_i40e_acquire_nvm_exit: | |
126 | return ret_code; | |
127 | } | |
128 | ||
129 | /** | |
3e26186d SN |
130 | * i40e_release_nvm - Generic request for releasing the NVM ownership |
131 | * @hw: pointer to the HW structure | |
56a62fc8 | 132 | * |
3e26186d | 133 | * This function will release NVM resource via the proper Admin Command. |
56a62fc8 JB |
134 | **/ |
135 | void i40e_release_nvm(struct i40e_hw *hw) | |
136 | { | |
137 | if (!hw->nvm.blank_nvm_mode) | |
138 | i40e_aq_release_resource(hw, I40E_NVM_RESOURCE_ID, 0, NULL); | |
139 | } | |
140 | ||
141 | /** | |
3e26186d SN |
142 | * i40e_poll_sr_srctl_done_bit - Polls the GLNVM_SRCTL done bit |
143 | * @hw: pointer to the HW structure | |
56a62fc8 | 144 | * |
3e26186d | 145 | * Polls the SRCTL Shadow RAM register done bit. |
56a62fc8 JB |
146 | **/ |
147 | static i40e_status i40e_poll_sr_srctl_done_bit(struct i40e_hw *hw) | |
148 | { | |
149 | i40e_status ret_code = I40E_ERR_TIMEOUT; | |
150 | u32 srctl, wait_cnt; | |
151 | ||
3e26186d | 152 | /* Poll the I40E_GLNVM_SRCTL until the done bit is set */ |
56a62fc8 JB |
153 | for (wait_cnt = 0; wait_cnt < I40E_SRRD_SRCTL_ATTEMPTS; wait_cnt++) { |
154 | srctl = rd32(hw, I40E_GLNVM_SRCTL); | |
155 | if (srctl & I40E_GLNVM_SRCTL_DONE_MASK) { | |
156 | ret_code = 0; | |
157 | break; | |
158 | } | |
159 | udelay(5); | |
160 | } | |
161 | if (ret_code == I40E_ERR_TIMEOUT) | |
74d0d0ed | 162 | i40e_debug(hw, I40E_DEBUG_NVM, "Done bit in GLNVM_SRCTL not set"); |
56a62fc8 JB |
163 | return ret_code; |
164 | } | |
165 | ||
166 | /** | |
d1bbe0ea | 167 | * i40e_read_nvm_word_srctl - Reads Shadow RAM via SRCTL register |
3e26186d SN |
168 | * @hw: pointer to the HW structure |
169 | * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF) | |
170 | * @data: word read from the Shadow RAM | |
56a62fc8 | 171 | * |
3e26186d | 172 | * Reads one 16 bit word from the Shadow RAM using the GLNVM_SRCTL register. |
56a62fc8 | 173 | **/ |
37a2973a SN |
174 | static i40e_status i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset, |
175 | u16 *data) | |
56a62fc8 JB |
176 | { |
177 | i40e_status ret_code = I40E_ERR_TIMEOUT; | |
178 | u32 sr_reg; | |
179 | ||
180 | if (offset >= hw->nvm.sr_size) { | |
74d0d0ed SN |
181 | i40e_debug(hw, I40E_DEBUG_NVM, |
182 | "NVM read error: offset %d beyond Shadow RAM limit %d\n", | |
183 | offset, hw->nvm.sr_size); | |
56a62fc8 JB |
184 | ret_code = I40E_ERR_PARAM; |
185 | goto read_nvm_exit; | |
186 | } | |
187 | ||
3e26186d | 188 | /* Poll the done bit first */ |
56a62fc8 JB |
189 | ret_code = i40e_poll_sr_srctl_done_bit(hw); |
190 | if (!ret_code) { | |
3e26186d | 191 | /* Write the address and start reading */ |
56a62fc8 JB |
192 | sr_reg = (u32)(offset << I40E_GLNVM_SRCTL_ADDR_SHIFT) | |
193 | (1 << I40E_GLNVM_SRCTL_START_SHIFT); | |
194 | wr32(hw, I40E_GLNVM_SRCTL, sr_reg); | |
195 | ||
3e26186d | 196 | /* Poll I40E_GLNVM_SRCTL until the done bit is set */ |
56a62fc8 JB |
197 | ret_code = i40e_poll_sr_srctl_done_bit(hw); |
198 | if (!ret_code) { | |
199 | sr_reg = rd32(hw, I40E_GLNVM_SRDATA); | |
200 | *data = (u16)((sr_reg & | |
201 | I40E_GLNVM_SRDATA_RDDATA_MASK) | |
202 | >> I40E_GLNVM_SRDATA_RDDATA_SHIFT); | |
d1bbe0ea | 203 | *data = le16_to_cpu(*data); |
56a62fc8 JB |
204 | } |
205 | } | |
206 | if (ret_code) | |
74d0d0ed SN |
207 | i40e_debug(hw, I40E_DEBUG_NVM, |
208 | "NVM read error: Couldn't access Shadow RAM address: 0x%x\n", | |
209 | offset); | |
56a62fc8 JB |
210 | |
211 | read_nvm_exit: | |
212 | return ret_code; | |
213 | } | |
214 | ||
56a62fc8 | 215 | /** |
d1bbe0ea KK |
216 | * i40e_read_nvm_word - Reads Shadow RAM |
217 | * @hw: pointer to the HW structure | |
218 | * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF) | |
219 | * @data: word read from the Shadow RAM | |
220 | * | |
221 | * Reads one 16 bit word from the Shadow RAM using the GLNVM_SRCTL register. | |
222 | **/ | |
223 | i40e_status i40e_read_nvm_word(struct i40e_hw *hw, u16 offset, | |
224 | u16 *data) | |
225 | { | |
226 | return i40e_read_nvm_word_srctl(hw, offset, data); | |
227 | } | |
228 | ||
229 | /** | |
230 | * i40e_read_nvm_buffer_srctl - Reads Shadow RAM buffer via SRCTL register | |
3e26186d SN |
231 | * @hw: pointer to the HW structure |
232 | * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF). | |
233 | * @words: (in) number of words to read; (out) number of words actually read | |
234 | * @data: words read from the Shadow RAM | |
56a62fc8 | 235 | * |
3e26186d SN |
236 | * Reads 16 bit words (data buffer) from the SR using the i40e_read_nvm_srrd() |
237 | * method. The buffer read is preceded by the NVM ownership take | |
238 | * and followed by the release. | |
56a62fc8 | 239 | **/ |
37a2973a SN |
240 | static i40e_status i40e_read_nvm_buffer_srctl(struct i40e_hw *hw, u16 offset, |
241 | u16 *words, u16 *data) | |
56a62fc8 JB |
242 | { |
243 | i40e_status ret_code = 0; | |
244 | u16 index, word; | |
56a62fc8 | 245 | |
3e26186d | 246 | /* Loop thru the selected region */ |
a4bcfbb7 SN |
247 | for (word = 0; word < *words; word++) { |
248 | index = offset + word; | |
d1bbe0ea | 249 | ret_code = i40e_read_nvm_word_srctl(hw, index, &data[word]); |
a4bcfbb7 SN |
250 | if (ret_code) |
251 | break; | |
56a62fc8 JB |
252 | } |
253 | ||
3e26186d | 254 | /* Update the number of words read from the Shadow RAM */ |
a4bcfbb7 SN |
255 | *words = word; |
256 | ||
56a62fc8 JB |
257 | return ret_code; |
258 | } | |
259 | ||
d1bbe0ea KK |
260 | /** |
261 | * i40e_read_nvm_buffer - Reads Shadow RAM buffer | |
262 | * @hw: pointer to the HW structure | |
263 | * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF). | |
264 | * @words: (in) number of words to read; (out) number of words actually read | |
265 | * @data: words read from the Shadow RAM | |
266 | * | |
267 | * Reads 16 bit words (data buffer) from the SR using the i40e_read_nvm_srrd() | |
268 | * method. The buffer read is preceded by the NVM ownership take | |
269 | * and followed by the release. | |
270 | **/ | |
271 | i40e_status i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset, | |
272 | u16 *words, u16 *data) | |
273 | { | |
274 | return i40e_read_nvm_buffer_srctl(hw, offset, words, data); | |
275 | } | |
276 | ||
cd552cb4 SN |
277 | /** |
278 | * i40e_write_nvm_aq - Writes Shadow RAM. | |
279 | * @hw: pointer to the HW structure. | |
280 | * @module_pointer: module pointer location in words from the NVM beginning | |
281 | * @offset: offset in words from module start | |
282 | * @words: number of words to write | |
283 | * @data: buffer with words to write to the Shadow RAM | |
284 | * @last_command: tells the AdminQ that this is the last command | |
285 | * | |
286 | * Writes a 16 bit words buffer to the Shadow RAM using the admin command. | |
287 | **/ | |
952d9639 WY |
288 | static i40e_status i40e_write_nvm_aq(struct i40e_hw *hw, u8 module_pointer, |
289 | u32 offset, u16 words, void *data, | |
290 | bool last_command) | |
cd552cb4 SN |
291 | { |
292 | i40e_status ret_code = I40E_ERR_NVM; | |
293 | ||
294 | /* Here we are checking the SR limit only for the flat memory model. | |
295 | * We cannot do it for the module-based model, as we did not acquire | |
296 | * the NVM resource yet (we cannot get the module pointer value). | |
297 | * Firmware will check the module-based model. | |
298 | */ | |
299 | if ((offset + words) > hw->nvm.sr_size) | |
74d0d0ed SN |
300 | i40e_debug(hw, I40E_DEBUG_NVM, |
301 | "NVM write error: offset %d beyond Shadow RAM limit %d\n", | |
302 | (offset + words), hw->nvm.sr_size); | |
cd552cb4 SN |
303 | else if (words > I40E_SR_SECTOR_SIZE_IN_WORDS) |
304 | /* We can write only up to 4KB (one sector), in one AQ write */ | |
74d0d0ed SN |
305 | i40e_debug(hw, I40E_DEBUG_NVM, |
306 | "NVM write fail error: tried to write %d words, limit is %d.\n", | |
307 | words, I40E_SR_SECTOR_SIZE_IN_WORDS); | |
cd552cb4 SN |
308 | else if (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS) |
309 | != (offset / I40E_SR_SECTOR_SIZE_IN_WORDS)) | |
310 | /* A single write cannot spread over two sectors */ | |
74d0d0ed SN |
311 | i40e_debug(hw, I40E_DEBUG_NVM, |
312 | "NVM write error: cannot spread over two sectors in a single write offset=%d words=%d\n", | |
313 | offset, words); | |
cd552cb4 SN |
314 | else |
315 | ret_code = i40e_aq_update_nvm(hw, module_pointer, | |
316 | 2 * offset, /*bytes*/ | |
317 | 2 * words, /*bytes*/ | |
318 | data, last_command, NULL); | |
319 | ||
320 | return ret_code; | |
321 | } | |
322 | ||
56a62fc8 | 323 | /** |
3e26186d SN |
324 | * i40e_calc_nvm_checksum - Calculates and returns the checksum |
325 | * @hw: pointer to hardware structure | |
326 | * @checksum: pointer to the checksum | |
56a62fc8 | 327 | * |
3e26186d SN |
328 | * This function calculates SW Checksum that covers the whole 64kB shadow RAM |
329 | * except the VPD and PCIe ALT Auto-load modules. The structure and size of VPD | |
330 | * is customer specific and unknown. Therefore, this function skips all maximum | |
331 | * possible size of VPD (1kB). | |
56a62fc8 JB |
332 | **/ |
333 | static i40e_status i40e_calc_nvm_checksum(struct i40e_hw *hw, | |
334 | u16 *checksum) | |
335 | { | |
336 | i40e_status ret_code = 0; | |
d1bbe0ea | 337 | struct i40e_virt_mem vmem; |
56a62fc8 JB |
338 | u16 pcie_alt_module = 0; |
339 | u16 checksum_local = 0; | |
340 | u16 vpd_module = 0; | |
d1bbe0ea KK |
341 | u16 *data; |
342 | u16 i = 0; | |
343 | ||
344 | ret_code = i40e_allocate_virt_mem(hw, &vmem, | |
345 | I40E_SR_SECTOR_SIZE_IN_WORDS * sizeof(u16)); | |
346 | if (ret_code) | |
347 | goto i40e_calc_nvm_checksum_exit; | |
348 | data = (u16 *)vmem.va; | |
56a62fc8 JB |
349 | |
350 | /* read pointer to VPD area */ | |
a4bcfbb7 | 351 | ret_code = i40e_read_nvm_word(hw, I40E_SR_VPD_PTR, &vpd_module); |
56a62fc8 JB |
352 | if (ret_code) { |
353 | ret_code = I40E_ERR_NVM_CHECKSUM; | |
354 | goto i40e_calc_nvm_checksum_exit; | |
355 | } | |
356 | ||
357 | /* read pointer to PCIe Alt Auto-load module */ | |
a4bcfbb7 | 358 | ret_code = i40e_read_nvm_word(hw, I40E_SR_PCIE_ALT_AUTO_LOAD_PTR, |
d1bbe0ea | 359 | &pcie_alt_module); |
56a62fc8 JB |
360 | if (ret_code) { |
361 | ret_code = I40E_ERR_NVM_CHECKSUM; | |
362 | goto i40e_calc_nvm_checksum_exit; | |
363 | } | |
364 | ||
365 | /* Calculate SW checksum that covers the whole 64kB shadow RAM | |
366 | * except the VPD and PCIe ALT Auto-load modules | |
367 | */ | |
368 | for (i = 0; i < hw->nvm.sr_size; i++) { | |
d1bbe0ea KK |
369 | /* Read SR page */ |
370 | if ((i % I40E_SR_SECTOR_SIZE_IN_WORDS) == 0) { | |
371 | u16 words = I40E_SR_SECTOR_SIZE_IN_WORDS; | |
372 | ||
373 | ret_code = i40e_read_nvm_buffer(hw, i, &words, data); | |
374 | if (ret_code) { | |
375 | ret_code = I40E_ERR_NVM_CHECKSUM; | |
376 | goto i40e_calc_nvm_checksum_exit; | |
377 | } | |
378 | } | |
379 | ||
56a62fc8 JB |
380 | /* Skip Checksum word */ |
381 | if (i == I40E_SR_SW_CHECKSUM_WORD) | |
d1bbe0ea | 382 | continue; |
56a62fc8 | 383 | /* Skip VPD module (convert byte size to word count) */ |
d1bbe0ea KK |
384 | if ((i >= (u32)vpd_module) && |
385 | (i < ((u32)vpd_module + | |
386 | (I40E_SR_VPD_MODULE_MAX_SIZE / 2)))) { | |
387 | continue; | |
56a62fc8 JB |
388 | } |
389 | /* Skip PCIe ALT module (convert byte size to word count) */ | |
d1bbe0ea KK |
390 | if ((i >= (u32)pcie_alt_module) && |
391 | (i < ((u32)pcie_alt_module + | |
392 | (I40E_SR_PCIE_ALT_MODULE_MAX_SIZE / 2)))) { | |
393 | continue; | |
56a62fc8 JB |
394 | } |
395 | ||
d1bbe0ea | 396 | checksum_local += data[i % I40E_SR_SECTOR_SIZE_IN_WORDS]; |
56a62fc8 JB |
397 | } |
398 | ||
399 | *checksum = (u16)I40E_SR_SW_CHECKSUM_BASE - checksum_local; | |
400 | ||
401 | i40e_calc_nvm_checksum_exit: | |
d1bbe0ea | 402 | i40e_free_virt_mem(hw, &vmem); |
56a62fc8 JB |
403 | return ret_code; |
404 | } | |
405 | ||
cd552cb4 SN |
406 | /** |
407 | * i40e_update_nvm_checksum - Updates the NVM checksum | |
408 | * @hw: pointer to hardware structure | |
409 | * | |
410 | * NVM ownership must be acquired before calling this function and released | |
411 | * on ARQ completion event reception by caller. | |
412 | * This function will commit SR to NVM. | |
413 | **/ | |
414 | i40e_status i40e_update_nvm_checksum(struct i40e_hw *hw) | |
415 | { | |
416 | i40e_status ret_code = 0; | |
417 | u16 checksum; | |
418 | ||
419 | ret_code = i40e_calc_nvm_checksum(hw, &checksum); | |
420 | if (!ret_code) | |
421 | ret_code = i40e_write_nvm_aq(hw, 0x00, I40E_SR_SW_CHECKSUM_WORD, | |
422 | 1, &checksum, true); | |
423 | ||
424 | return ret_code; | |
425 | } | |
426 | ||
56a62fc8 | 427 | /** |
3e26186d SN |
428 | * i40e_validate_nvm_checksum - Validate EEPROM checksum |
429 | * @hw: pointer to hardware structure | |
430 | * @checksum: calculated checksum | |
56a62fc8 | 431 | * |
3e26186d SN |
432 | * Performs checksum calculation and validates the NVM SW checksum. If the |
433 | * caller does not need checksum, the value can be NULL. | |
56a62fc8 JB |
434 | **/ |
435 | i40e_status i40e_validate_nvm_checksum(struct i40e_hw *hw, | |
436 | u16 *checksum) | |
437 | { | |
438 | i40e_status ret_code = 0; | |
439 | u16 checksum_sr = 0; | |
e15c9fa0 | 440 | u16 checksum_local = 0; |
56a62fc8 | 441 | |
56a62fc8 JB |
442 | ret_code = i40e_calc_nvm_checksum(hw, &checksum_local); |
443 | if (ret_code) | |
7a208e83 | 444 | goto i40e_validate_nvm_checksum_exit; |
56a62fc8 JB |
445 | |
446 | /* Do not use i40e_read_nvm_word() because we do not want to take | |
447 | * the synchronization semaphores twice here. | |
448 | */ | |
a4bcfbb7 | 449 | i40e_read_nvm_word(hw, I40E_SR_SW_CHECKSUM_WORD, &checksum_sr); |
56a62fc8 JB |
450 | |
451 | /* Verify read checksum from EEPROM is the same as | |
452 | * calculated checksum | |
453 | */ | |
454 | if (checksum_local != checksum_sr) | |
455 | ret_code = I40E_ERR_NVM_CHECKSUM; | |
456 | ||
457 | /* If the user cares, return the calculated checksum */ | |
458 | if (checksum) | |
459 | *checksum = checksum_local; | |
460 | ||
56a62fc8 JB |
461 | i40e_validate_nvm_checksum_exit: |
462 | return ret_code; | |
463 | } | |
cd552cb4 SN |
464 | |
465 | static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw, | |
466 | struct i40e_nvm_access *cmd, | |
467 | u8 *bytes, int *errno); | |
468 | static i40e_status i40e_nvmupd_state_reading(struct i40e_hw *hw, | |
469 | struct i40e_nvm_access *cmd, | |
470 | u8 *bytes, int *errno); | |
471 | static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw, | |
472 | struct i40e_nvm_access *cmd, | |
473 | u8 *bytes, int *errno); | |
474 | static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw, | |
475 | struct i40e_nvm_access *cmd, | |
476 | int *errno); | |
477 | static i40e_status i40e_nvmupd_nvm_erase(struct i40e_hw *hw, | |
478 | struct i40e_nvm_access *cmd, | |
479 | int *errno); | |
480 | static i40e_status i40e_nvmupd_nvm_write(struct i40e_hw *hw, | |
481 | struct i40e_nvm_access *cmd, | |
482 | u8 *bytes, int *errno); | |
483 | static i40e_status i40e_nvmupd_nvm_read(struct i40e_hw *hw, | |
484 | struct i40e_nvm_access *cmd, | |
485 | u8 *bytes, int *errno); | |
486 | static inline u8 i40e_nvmupd_get_module(u32 val) | |
487 | { | |
488 | return (u8)(val & I40E_NVM_MOD_PNT_MASK); | |
489 | } | |
490 | static inline u8 i40e_nvmupd_get_transaction(u32 val) | |
491 | { | |
492 | return (u8)((val & I40E_NVM_TRANS_MASK) >> I40E_NVM_TRANS_SHIFT); | |
493 | } | |
494 | ||
74d0d0ed SN |
495 | static char *i40e_nvm_update_state_str[] = { |
496 | "I40E_NVMUPD_INVALID", | |
497 | "I40E_NVMUPD_READ_CON", | |
498 | "I40E_NVMUPD_READ_SNT", | |
499 | "I40E_NVMUPD_READ_LCB", | |
500 | "I40E_NVMUPD_READ_SA", | |
501 | "I40E_NVMUPD_WRITE_ERA", | |
502 | "I40E_NVMUPD_WRITE_CON", | |
503 | "I40E_NVMUPD_WRITE_SNT", | |
504 | "I40E_NVMUPD_WRITE_LCB", | |
505 | "I40E_NVMUPD_WRITE_SA", | |
506 | "I40E_NVMUPD_CSUM_CON", | |
507 | "I40E_NVMUPD_CSUM_SA", | |
508 | "I40E_NVMUPD_CSUM_LCB", | |
509 | }; | |
510 | ||
cd552cb4 SN |
511 | /** |
512 | * i40e_nvmupd_command - Process an NVM update command | |
513 | * @hw: pointer to hardware structure | |
514 | * @cmd: pointer to nvm update command | |
515 | * @bytes: pointer to the data buffer | |
516 | * @errno: pointer to return error code | |
517 | * | |
518 | * Dispatches command depending on what update state is current | |
519 | **/ | |
520 | i40e_status i40e_nvmupd_command(struct i40e_hw *hw, | |
521 | struct i40e_nvm_access *cmd, | |
522 | u8 *bytes, int *errno) | |
523 | { | |
524 | i40e_status status; | |
525 | ||
526 | /* assume success */ | |
527 | *errno = 0; | |
528 | ||
529 | switch (hw->nvmupd_state) { | |
530 | case I40E_NVMUPD_STATE_INIT: | |
531 | status = i40e_nvmupd_state_init(hw, cmd, bytes, errno); | |
532 | break; | |
533 | ||
534 | case I40E_NVMUPD_STATE_READING: | |
535 | status = i40e_nvmupd_state_reading(hw, cmd, bytes, errno); | |
536 | break; | |
537 | ||
538 | case I40E_NVMUPD_STATE_WRITING: | |
539 | status = i40e_nvmupd_state_writing(hw, cmd, bytes, errno); | |
540 | break; | |
541 | ||
542 | default: | |
543 | /* invalid state, should never happen */ | |
74d0d0ed SN |
544 | i40e_debug(hw, I40E_DEBUG_NVM, |
545 | "NVMUPD: no such state %d\n", hw->nvmupd_state); | |
cd552cb4 SN |
546 | status = I40E_NOT_SUPPORTED; |
547 | *errno = -ESRCH; | |
548 | break; | |
549 | } | |
550 | return status; | |
551 | } | |
552 | ||
553 | /** | |
554 | * i40e_nvmupd_state_init - Handle NVM update state Init | |
555 | * @hw: pointer to hardware structure | |
556 | * @cmd: pointer to nvm update command buffer | |
557 | * @bytes: pointer to the data buffer | |
558 | * @errno: pointer to return error code | |
559 | * | |
560 | * Process legitimate commands of the Init state and conditionally set next | |
561 | * state. Reject all other commands. | |
562 | **/ | |
563 | static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw, | |
564 | struct i40e_nvm_access *cmd, | |
565 | u8 *bytes, int *errno) | |
566 | { | |
567 | i40e_status status = 0; | |
568 | enum i40e_nvmupd_cmd upd_cmd; | |
569 | ||
570 | upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno); | |
571 | ||
572 | switch (upd_cmd) { | |
573 | case I40E_NVMUPD_READ_SA: | |
574 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); | |
575 | if (status) { | |
bf848f32 SN |
576 | *errno = i40e_aq_rc_to_posix(status, |
577 | hw->aq.asq_last_status); | |
cd552cb4 SN |
578 | } else { |
579 | status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno); | |
580 | i40e_release_nvm(hw); | |
581 | } | |
582 | break; | |
583 | ||
584 | case I40E_NVMUPD_READ_SNT: | |
585 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); | |
586 | if (status) { | |
bf848f32 SN |
587 | *errno = i40e_aq_rc_to_posix(status, |
588 | hw->aq.asq_last_status); | |
cd552cb4 SN |
589 | } else { |
590 | status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno); | |
0fdd052c SN |
591 | if (status) |
592 | i40e_release_nvm(hw); | |
593 | else | |
594 | hw->nvmupd_state = I40E_NVMUPD_STATE_READING; | |
cd552cb4 SN |
595 | } |
596 | break; | |
597 | ||
598 | case I40E_NVMUPD_WRITE_ERA: | |
599 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); | |
600 | if (status) { | |
bf848f32 SN |
601 | *errno = i40e_aq_rc_to_posix(status, |
602 | hw->aq.asq_last_status); | |
cd552cb4 SN |
603 | } else { |
604 | status = i40e_nvmupd_nvm_erase(hw, cmd, errno); | |
605 | if (status) | |
606 | i40e_release_nvm(hw); | |
607 | else | |
608 | hw->aq.nvm_release_on_done = true; | |
609 | } | |
610 | break; | |
611 | ||
612 | case I40E_NVMUPD_WRITE_SA: | |
613 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); | |
614 | if (status) { | |
bf848f32 SN |
615 | *errno = i40e_aq_rc_to_posix(status, |
616 | hw->aq.asq_last_status); | |
cd552cb4 SN |
617 | } else { |
618 | status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno); | |
619 | if (status) | |
620 | i40e_release_nvm(hw); | |
621 | else | |
622 | hw->aq.nvm_release_on_done = true; | |
623 | } | |
624 | break; | |
625 | ||
626 | case I40E_NVMUPD_WRITE_SNT: | |
627 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); | |
628 | if (status) { | |
bf848f32 SN |
629 | *errno = i40e_aq_rc_to_posix(status, |
630 | hw->aq.asq_last_status); | |
cd552cb4 SN |
631 | } else { |
632 | status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno); | |
0fdd052c SN |
633 | if (status) |
634 | i40e_release_nvm(hw); | |
635 | else | |
636 | hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING; | |
cd552cb4 SN |
637 | } |
638 | break; | |
639 | ||
640 | case I40E_NVMUPD_CSUM_SA: | |
641 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); | |
642 | if (status) { | |
bf848f32 SN |
643 | *errno = i40e_aq_rc_to_posix(status, |
644 | hw->aq.asq_last_status); | |
cd552cb4 SN |
645 | } else { |
646 | status = i40e_update_nvm_checksum(hw); | |
647 | if (status) { | |
648 | *errno = hw->aq.asq_last_status ? | |
bf848f32 SN |
649 | i40e_aq_rc_to_posix(status, |
650 | hw->aq.asq_last_status) : | |
cd552cb4 SN |
651 | -EIO; |
652 | i40e_release_nvm(hw); | |
653 | } else { | |
654 | hw->aq.nvm_release_on_done = true; | |
655 | } | |
656 | } | |
657 | break; | |
658 | ||
659 | default: | |
74d0d0ed SN |
660 | i40e_debug(hw, I40E_DEBUG_NVM, |
661 | "NVMUPD: bad cmd %s in init state\n", | |
662 | i40e_nvm_update_state_str[upd_cmd]); | |
cd552cb4 SN |
663 | status = I40E_ERR_NVM; |
664 | *errno = -ESRCH; | |
665 | break; | |
666 | } | |
667 | return status; | |
668 | } | |
669 | ||
670 | /** | |
671 | * i40e_nvmupd_state_reading - Handle NVM update state Reading | |
672 | * @hw: pointer to hardware structure | |
673 | * @cmd: pointer to nvm update command buffer | |
674 | * @bytes: pointer to the data buffer | |
675 | * @errno: pointer to return error code | |
676 | * | |
677 | * NVM ownership is already held. Process legitimate commands and set any | |
678 | * change in state; reject all other commands. | |
679 | **/ | |
680 | static i40e_status i40e_nvmupd_state_reading(struct i40e_hw *hw, | |
681 | struct i40e_nvm_access *cmd, | |
682 | u8 *bytes, int *errno) | |
683 | { | |
684 | i40e_status status; | |
685 | enum i40e_nvmupd_cmd upd_cmd; | |
686 | ||
687 | upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno); | |
688 | ||
689 | switch (upd_cmd) { | |
690 | case I40E_NVMUPD_READ_SA: | |
691 | case I40E_NVMUPD_READ_CON: | |
692 | status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno); | |
693 | break; | |
694 | ||
695 | case I40E_NVMUPD_READ_LCB: | |
696 | status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno); | |
697 | i40e_release_nvm(hw); | |
698 | hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; | |
699 | break; | |
700 | ||
701 | default: | |
74d0d0ed SN |
702 | i40e_debug(hw, I40E_DEBUG_NVM, |
703 | "NVMUPD: bad cmd %s in reading state.\n", | |
704 | i40e_nvm_update_state_str[upd_cmd]); | |
cd552cb4 SN |
705 | status = I40E_NOT_SUPPORTED; |
706 | *errno = -ESRCH; | |
707 | break; | |
708 | } | |
709 | return status; | |
710 | } | |
711 | ||
712 | /** | |
713 | * i40e_nvmupd_state_writing - Handle NVM update state Writing | |
714 | * @hw: pointer to hardware structure | |
715 | * @cmd: pointer to nvm update command buffer | |
716 | * @bytes: pointer to the data buffer | |
717 | * @errno: pointer to return error code | |
718 | * | |
719 | * NVM ownership is already held. Process legitimate commands and set any | |
720 | * change in state; reject all other commands | |
721 | **/ | |
722 | static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw, | |
723 | struct i40e_nvm_access *cmd, | |
724 | u8 *bytes, int *errno) | |
725 | { | |
726 | i40e_status status; | |
727 | enum i40e_nvmupd_cmd upd_cmd; | |
2c47e351 | 728 | bool retry_attempt = false; |
cd552cb4 SN |
729 | |
730 | upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno); | |
731 | ||
2c47e351 | 732 | retry: |
cd552cb4 SN |
733 | switch (upd_cmd) { |
734 | case I40E_NVMUPD_WRITE_CON: | |
735 | status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno); | |
736 | break; | |
737 | ||
738 | case I40E_NVMUPD_WRITE_LCB: | |
739 | status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno); | |
0fdd052c | 740 | if (!status) |
cd552cb4 | 741 | hw->aq.nvm_release_on_done = true; |
0fdd052c | 742 | hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; |
cd552cb4 SN |
743 | break; |
744 | ||
745 | case I40E_NVMUPD_CSUM_CON: | |
746 | status = i40e_update_nvm_checksum(hw); | |
0fdd052c | 747 | if (status) { |
cd552cb4 | 748 | *errno = hw->aq.asq_last_status ? |
bf848f32 SN |
749 | i40e_aq_rc_to_posix(status, |
750 | hw->aq.asq_last_status) : | |
cd552cb4 | 751 | -EIO; |
0fdd052c SN |
752 | hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; |
753 | } | |
cd552cb4 SN |
754 | break; |
755 | ||
756 | case I40E_NVMUPD_CSUM_LCB: | |
757 | status = i40e_update_nvm_checksum(hw); | |
0fdd052c | 758 | if (status) |
cd552cb4 | 759 | *errno = hw->aq.asq_last_status ? |
bf848f32 SN |
760 | i40e_aq_rc_to_posix(status, |
761 | hw->aq.asq_last_status) : | |
cd552cb4 | 762 | -EIO; |
0fdd052c | 763 | else |
cd552cb4 | 764 | hw->aq.nvm_release_on_done = true; |
0fdd052c | 765 | hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; |
cd552cb4 SN |
766 | break; |
767 | ||
768 | default: | |
74d0d0ed SN |
769 | i40e_debug(hw, I40E_DEBUG_NVM, |
770 | "NVMUPD: bad cmd %s in writing state.\n", | |
771 | i40e_nvm_update_state_str[upd_cmd]); | |
cd552cb4 SN |
772 | status = I40E_NOT_SUPPORTED; |
773 | *errno = -ESRCH; | |
774 | break; | |
775 | } | |
2c47e351 SN |
776 | |
777 | /* In some circumstances, a multi-write transaction takes longer | |
778 | * than the default 3 minute timeout on the write semaphore. If | |
779 | * the write failed with an EBUSY status, this is likely the problem, | |
780 | * so here we try to reacquire the semaphore then retry the write. | |
781 | * We only do one retry, then give up. | |
782 | */ | |
783 | if (status && (hw->aq.asq_last_status == I40E_AQ_RC_EBUSY) && | |
784 | !retry_attempt) { | |
785 | i40e_status old_status = status; | |
786 | u32 old_asq_status = hw->aq.asq_last_status; | |
787 | u32 gtime; | |
788 | ||
789 | gtime = rd32(hw, I40E_GLVFGEN_TIMER); | |
790 | if (gtime >= hw->nvm.hw_semaphore_timeout) { | |
791 | i40e_debug(hw, I40E_DEBUG_ALL, | |
792 | "NVMUPD: write semaphore expired (%d >= %lld), retrying\n", | |
793 | gtime, hw->nvm.hw_semaphore_timeout); | |
794 | i40e_release_nvm(hw); | |
795 | status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE); | |
796 | if (status) { | |
797 | i40e_debug(hw, I40E_DEBUG_ALL, | |
798 | "NVMUPD: write semaphore reacquire failed aq_err = %d\n", | |
799 | hw->aq.asq_last_status); | |
800 | status = old_status; | |
801 | hw->aq.asq_last_status = old_asq_status; | |
802 | } else { | |
803 | retry_attempt = true; | |
804 | goto retry; | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
cd552cb4 SN |
809 | return status; |
810 | } | |
811 | ||
812 | /** | |
813 | * i40e_nvmupd_validate_command - Validate given command | |
814 | * @hw: pointer to hardware structure | |
815 | * @cmd: pointer to nvm update command buffer | |
816 | * @errno: pointer to return error code | |
817 | * | |
818 | * Return one of the valid command types or I40E_NVMUPD_INVALID | |
819 | **/ | |
820 | static enum i40e_nvmupd_cmd i40e_nvmupd_validate_command(struct i40e_hw *hw, | |
821 | struct i40e_nvm_access *cmd, | |
822 | int *errno) | |
823 | { | |
824 | enum i40e_nvmupd_cmd upd_cmd; | |
825 | u8 transaction, module; | |
826 | ||
827 | /* anything that doesn't match a recognized case is an error */ | |
828 | upd_cmd = I40E_NVMUPD_INVALID; | |
829 | ||
830 | transaction = i40e_nvmupd_get_transaction(cmd->config); | |
831 | module = i40e_nvmupd_get_module(cmd->config); | |
832 | ||
833 | /* limits on data size */ | |
834 | if ((cmd->data_size < 1) || | |
835 | (cmd->data_size > I40E_NVMUPD_MAX_DATA)) { | |
74d0d0ed SN |
836 | i40e_debug(hw, I40E_DEBUG_NVM, |
837 | "i40e_nvmupd_validate_command data_size %d\n", | |
838 | cmd->data_size); | |
cd552cb4 SN |
839 | *errno = -EFAULT; |
840 | return I40E_NVMUPD_INVALID; | |
841 | } | |
842 | ||
843 | switch (cmd->command) { | |
844 | case I40E_NVM_READ: | |
845 | switch (transaction) { | |
846 | case I40E_NVM_CON: | |
847 | upd_cmd = I40E_NVMUPD_READ_CON; | |
848 | break; | |
849 | case I40E_NVM_SNT: | |
850 | upd_cmd = I40E_NVMUPD_READ_SNT; | |
851 | break; | |
852 | case I40E_NVM_LCB: | |
853 | upd_cmd = I40E_NVMUPD_READ_LCB; | |
854 | break; | |
855 | case I40E_NVM_SA: | |
856 | upd_cmd = I40E_NVMUPD_READ_SA; | |
857 | break; | |
858 | } | |
859 | break; | |
860 | ||
861 | case I40E_NVM_WRITE: | |
862 | switch (transaction) { | |
863 | case I40E_NVM_CON: | |
864 | upd_cmd = I40E_NVMUPD_WRITE_CON; | |
865 | break; | |
866 | case I40E_NVM_SNT: | |
867 | upd_cmd = I40E_NVMUPD_WRITE_SNT; | |
868 | break; | |
869 | case I40E_NVM_LCB: | |
870 | upd_cmd = I40E_NVMUPD_WRITE_LCB; | |
871 | break; | |
872 | case I40E_NVM_SA: | |
873 | upd_cmd = I40E_NVMUPD_WRITE_SA; | |
874 | break; | |
875 | case I40E_NVM_ERA: | |
876 | upd_cmd = I40E_NVMUPD_WRITE_ERA; | |
877 | break; | |
878 | case I40E_NVM_CSUM: | |
879 | upd_cmd = I40E_NVMUPD_CSUM_CON; | |
880 | break; | |
881 | case (I40E_NVM_CSUM|I40E_NVM_SA): | |
882 | upd_cmd = I40E_NVMUPD_CSUM_SA; | |
883 | break; | |
884 | case (I40E_NVM_CSUM|I40E_NVM_LCB): | |
885 | upd_cmd = I40E_NVMUPD_CSUM_LCB; | |
886 | break; | |
887 | } | |
888 | break; | |
889 | } | |
e51d9b8f SN |
890 | i40e_debug(hw, I40E_DEBUG_NVM, "%s state %d nvm_release_on_hold %d\n", |
891 | i40e_nvm_update_state_str[upd_cmd], | |
892 | hw->nvmupd_state, | |
893 | hw->aq.nvm_release_on_done); | |
cd552cb4 SN |
894 | |
895 | if (upd_cmd == I40E_NVMUPD_INVALID) { | |
896 | *errno = -EFAULT; | |
74d0d0ed SN |
897 | i40e_debug(hw, I40E_DEBUG_NVM, |
898 | "i40e_nvmupd_validate_command returns %d errno %d\n", | |
899 | upd_cmd, *errno); | |
cd552cb4 SN |
900 | } |
901 | return upd_cmd; | |
902 | } | |
903 | ||
904 | /** | |
905 | * i40e_nvmupd_nvm_read - Read NVM | |
906 | * @hw: pointer to hardware structure | |
907 | * @cmd: pointer to nvm update command buffer | |
908 | * @bytes: pointer to the data buffer | |
909 | * @errno: pointer to return error code | |
910 | * | |
911 | * cmd structure contains identifiers and data buffer | |
912 | **/ | |
913 | static i40e_status i40e_nvmupd_nvm_read(struct i40e_hw *hw, | |
914 | struct i40e_nvm_access *cmd, | |
915 | u8 *bytes, int *errno) | |
916 | { | |
917 | i40e_status status; | |
918 | u8 module, transaction; | |
919 | bool last; | |
920 | ||
921 | transaction = i40e_nvmupd_get_transaction(cmd->config); | |
922 | module = i40e_nvmupd_get_module(cmd->config); | |
923 | last = (transaction == I40E_NVM_LCB) || (transaction == I40E_NVM_SA); | |
cd552cb4 SN |
924 | |
925 | status = i40e_aq_read_nvm(hw, module, cmd->offset, (u16)cmd->data_size, | |
926 | bytes, last, NULL); | |
74d0d0ed SN |
927 | if (status) { |
928 | i40e_debug(hw, I40E_DEBUG_NVM, | |
929 | "i40e_nvmupd_nvm_read mod 0x%x off 0x%x len 0x%x\n", | |
930 | module, cmd->offset, cmd->data_size); | |
931 | i40e_debug(hw, I40E_DEBUG_NVM, | |
932 | "i40e_nvmupd_nvm_read status %d aq %d\n", | |
933 | status, hw->aq.asq_last_status); | |
bf848f32 | 934 | *errno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status); |
74d0d0ed | 935 | } |
cd552cb4 SN |
936 | |
937 | return status; | |
938 | } | |
939 | ||
940 | /** | |
941 | * i40e_nvmupd_nvm_erase - Erase an NVM module | |
942 | * @hw: pointer to hardware structure | |
943 | * @cmd: pointer to nvm update command buffer | |
944 | * @errno: pointer to return error code | |
945 | * | |
946 | * module, offset, data_size and data are in cmd structure | |
947 | **/ | |
948 | static i40e_status i40e_nvmupd_nvm_erase(struct i40e_hw *hw, | |
949 | struct i40e_nvm_access *cmd, | |
950 | int *errno) | |
951 | { | |
952 | i40e_status status = 0; | |
953 | u8 module, transaction; | |
954 | bool last; | |
955 | ||
956 | transaction = i40e_nvmupd_get_transaction(cmd->config); | |
957 | module = i40e_nvmupd_get_module(cmd->config); | |
958 | last = (transaction & I40E_NVM_LCB); | |
cd552cb4 SN |
959 | status = i40e_aq_erase_nvm(hw, module, cmd->offset, (u16)cmd->data_size, |
960 | last, NULL); | |
74d0d0ed SN |
961 | if (status) { |
962 | i40e_debug(hw, I40E_DEBUG_NVM, | |
963 | "i40e_nvmupd_nvm_erase mod 0x%x off 0x%x len 0x%x\n", | |
964 | module, cmd->offset, cmd->data_size); | |
965 | i40e_debug(hw, I40E_DEBUG_NVM, | |
966 | "i40e_nvmupd_nvm_erase status %d aq %d\n", | |
967 | status, hw->aq.asq_last_status); | |
bf848f32 | 968 | *errno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status); |
74d0d0ed | 969 | } |
cd552cb4 SN |
970 | |
971 | return status; | |
972 | } | |
973 | ||
974 | /** | |
975 | * i40e_nvmupd_nvm_write - Write NVM | |
976 | * @hw: pointer to hardware structure | |
977 | * @cmd: pointer to nvm update command buffer | |
978 | * @bytes: pointer to the data buffer | |
979 | * @errno: pointer to return error code | |
980 | * | |
981 | * module, offset, data_size and data are in cmd structure | |
982 | **/ | |
983 | static i40e_status i40e_nvmupd_nvm_write(struct i40e_hw *hw, | |
984 | struct i40e_nvm_access *cmd, | |
985 | u8 *bytes, int *errno) | |
986 | { | |
987 | i40e_status status = 0; | |
988 | u8 module, transaction; | |
989 | bool last; | |
990 | ||
991 | transaction = i40e_nvmupd_get_transaction(cmd->config); | |
992 | module = i40e_nvmupd_get_module(cmd->config); | |
993 | last = (transaction & I40E_NVM_LCB); | |
74d0d0ed | 994 | |
cd552cb4 SN |
995 | status = i40e_aq_update_nvm(hw, module, cmd->offset, |
996 | (u16)cmd->data_size, bytes, last, NULL); | |
74d0d0ed SN |
997 | if (status) { |
998 | i40e_debug(hw, I40E_DEBUG_NVM, | |
999 | "i40e_nvmupd_nvm_write mod 0x%x off 0x%x len 0x%x\n", | |
1000 | module, cmd->offset, cmd->data_size); | |
1001 | i40e_debug(hw, I40E_DEBUG_NVM, | |
1002 | "i40e_nvmupd_nvm_write status %d aq %d\n", | |
1003 | status, hw->aq.asq_last_status); | |
bf848f32 | 1004 | *errno = i40e_aq_rc_to_posix(status, hw->aq.asq_last_status); |
74d0d0ed | 1005 | } |
cd552cb4 SN |
1006 | |
1007 | return status; | |
1008 | } |