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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright 2007-2008 Pierre Ossman
4 */
5
6#include <linux/mmc/core.h>
7#include <linux/mmc/card.h>
8#include <linux/mmc/host.h>
9#include <linux/mmc/mmc.h>
10#include <linux/slab.h>
11
12#include <linux/scatterlist.h>
13#include <linux/list.h>
14
15#include <linux/debugfs.h>
16#include <linux/uaccess.h>
17#include <linux/seq_file.h>
18#include <linux/module.h>
19
20#include "core.h"
21#include "card.h"
22#include "host.h"
23#include "bus.h"
24#include "mmc_ops.h"
25
26#define RESULT_OK 0
27#define RESULT_FAIL 1
28#define RESULT_UNSUP_HOST 2
29#define RESULT_UNSUP_CARD 3
30
31#define BUFFER_ORDER 2
32#define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER)
33
34#define TEST_ALIGN_END 8
35
36/*
37 * Limit the test area size to the maximum MMC HC erase group size. Note that
38 * the maximum SD allocation unit size is just 4MiB.
39 */
40#define TEST_AREA_MAX_SIZE (128 * 1024 * 1024)
41
42/**
43 * struct mmc_test_pages - pages allocated by 'alloc_pages()'.
44 * @page: first page in the allocation
45 * @order: order of the number of pages allocated
46 */
47struct mmc_test_pages {
48 struct page *page;
49 unsigned int order;
50};
51
52/**
53 * struct mmc_test_mem - allocated memory.
54 * @arr: array of allocations
55 * @cnt: number of allocations
56 */
57struct mmc_test_mem {
58 struct mmc_test_pages *arr;
59 unsigned int cnt;
60};
61
62/**
63 * struct mmc_test_area - information for performance tests.
64 * @max_sz: test area size (in bytes)
65 * @dev_addr: address on card at which to do performance tests
66 * @max_tfr: maximum transfer size allowed by driver (in bytes)
67 * @max_segs: maximum segments allowed by driver in scatterlist @sg
68 * @max_seg_sz: maximum segment size allowed by driver
69 * @blocks: number of (512 byte) blocks currently mapped by @sg
70 * @sg_len: length of currently mapped scatterlist @sg
71 * @mem: allocated memory
72 * @sg: scatterlist
73 * @sg_areq: scatterlist for non-blocking request
74 */
75struct mmc_test_area {
76 unsigned long max_sz;
77 unsigned int dev_addr;
78 unsigned int max_tfr;
79 unsigned int max_segs;
80 unsigned int max_seg_sz;
81 unsigned int blocks;
82 unsigned int sg_len;
83 struct mmc_test_mem *mem;
84 struct scatterlist *sg;
85 struct scatterlist *sg_areq;
86};
87
88/**
89 * struct mmc_test_transfer_result - transfer results for performance tests.
90 * @link: double-linked list
91 * @count: amount of group of sectors to check
92 * @sectors: amount of sectors to check in one group
93 * @ts: time values of transfer
94 * @rate: calculated transfer rate
95 * @iops: I/O operations per second (times 100)
96 */
97struct mmc_test_transfer_result {
98 struct list_head link;
99 unsigned int count;
100 unsigned int sectors;
101 struct timespec64 ts;
102 unsigned int rate;
103 unsigned int iops;
104};
105
106/**
107 * struct mmc_test_general_result - results for tests.
108 * @link: double-linked list
109 * @card: card under test
110 * @testcase: number of test case
111 * @result: result of test run
112 * @tr_lst: transfer measurements if any as mmc_test_transfer_result
113 */
114struct mmc_test_general_result {
115 struct list_head link;
116 struct mmc_card *card;
117 int testcase;
118 int result;
119 struct list_head tr_lst;
120};
121
122/**
123 * struct mmc_test_dbgfs_file - debugfs related file.
124 * @link: double-linked list
125 * @card: card under test
126 * @file: file created under debugfs
127 */
128struct mmc_test_dbgfs_file {
129 struct list_head link;
130 struct mmc_card *card;
131 struct dentry *file;
132};
133
134/**
135 * struct mmc_test_card - test information.
136 * @card: card under test
137 * @scratch: transfer buffer
138 * @buffer: transfer buffer
139 * @highmem: buffer for highmem tests
140 * @area: information for performance tests
141 * @gr: pointer to results of current testcase
142 */
143struct mmc_test_card {
144 struct mmc_card *card;
145
146 u8 scratch[BUFFER_SIZE];
147 u8 *buffer;
148#ifdef CONFIG_HIGHMEM
149 struct page *highmem;
150#endif
151 struct mmc_test_area area;
152 struct mmc_test_general_result *gr;
153};
154
155enum mmc_test_prep_media {
156 MMC_TEST_PREP_NONE = 0,
157 MMC_TEST_PREP_WRITE_FULL = 1 << 0,
158 MMC_TEST_PREP_ERASE = 1 << 1,
159};
160
161struct mmc_test_multiple_rw {
162 unsigned int *sg_len;
163 unsigned int *bs;
164 unsigned int len;
165 unsigned int size;
166 bool do_write;
167 bool do_nonblock_req;
168 enum mmc_test_prep_media prepare;
169};
170
171/*******************************************************************/
172/* General helper functions */
173/*******************************************************************/
174
175/*
176 * Configure correct block size in card
177 */
178static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size)
179{
180 return mmc_set_blocklen(test->card, size);
181}
182
183static bool mmc_test_card_cmd23(struct mmc_card *card)
184{
185 return mmc_card_mmc(card) ||
186 (mmc_card_sd(card) && card->scr.cmds & SD_SCR_CMD23_SUPPORT);
187}
188
189static void mmc_test_prepare_sbc(struct mmc_test_card *test,
190 struct mmc_request *mrq, unsigned int blocks)
191{
192 struct mmc_card *card = test->card;
193
194 if (!mrq->sbc || !mmc_host_cmd23(card->host) ||
195 !mmc_test_card_cmd23(card) || !mmc_op_multi(mrq->cmd->opcode) ||
196 (card->quirks & MMC_QUIRK_BLK_NO_CMD23)) {
197 mrq->sbc = NULL;
198 return;
199 }
200
201 mrq->sbc->opcode = MMC_SET_BLOCK_COUNT;
202 mrq->sbc->arg = blocks;
203 mrq->sbc->flags = MMC_RSP_R1 | MMC_CMD_AC;
204}
205
206/*
207 * Fill in the mmc_request structure given a set of transfer parameters.
208 */
209static void mmc_test_prepare_mrq(struct mmc_test_card *test,
210 struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
211 unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
212{
213 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop))
214 return;
215
216 if (blocks > 1) {
217 mrq->cmd->opcode = write ?
218 MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK;
219 } else {
220 mrq->cmd->opcode = write ?
221 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
222 }
223
224 mrq->cmd->arg = dev_addr;
225 if (!mmc_card_blockaddr(test->card))
226 mrq->cmd->arg <<= 9;
227
228 mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC;
229
230 if (blocks == 1)
231 mrq->stop = NULL;
232 else {
233 mrq->stop->opcode = MMC_STOP_TRANSMISSION;
234 mrq->stop->arg = 0;
235 mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
236 }
237
238 mrq->data->blksz = blksz;
239 mrq->data->blocks = blocks;
240 mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
241 mrq->data->sg = sg;
242 mrq->data->sg_len = sg_len;
243
244 mmc_test_prepare_sbc(test, mrq, blocks);
245
246 mmc_set_data_timeout(mrq->data, test->card);
247}
248
249static int mmc_test_busy(struct mmc_command *cmd)
250{
251 return !(cmd->resp[0] & R1_READY_FOR_DATA) ||
252 (R1_CURRENT_STATE(cmd->resp[0]) == R1_STATE_PRG);
253}
254
255/*
256 * Wait for the card to finish the busy state
257 */
258static int mmc_test_wait_busy(struct mmc_test_card *test)
259{
260 int ret, busy;
261 struct mmc_command cmd = {};
262
263 busy = 0;
264 do {
265 memset(&cmd, 0, sizeof(struct mmc_command));
266
267 cmd.opcode = MMC_SEND_STATUS;
268 cmd.arg = test->card->rca << 16;
269 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
270
271 ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
272 if (ret)
273 break;
274
275 if (!busy && mmc_test_busy(&cmd)) {
276 busy = 1;
277 if (test->card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
278 pr_info("%s: Warning: Host did not wait for busy state to end.\n",
279 mmc_hostname(test->card->host));
280 }
281 } while (mmc_test_busy(&cmd));
282
283 return ret;
284}
285
286/*
287 * Transfer a single sector of kernel addressable data
288 */
289static int mmc_test_buffer_transfer(struct mmc_test_card *test,
290 u8 *buffer, unsigned addr, unsigned blksz, int write)
291{
292 struct mmc_request mrq = {};
293 struct mmc_command cmd = {};
294 struct mmc_command stop = {};
295 struct mmc_data data = {};
296
297 struct scatterlist sg;
298
299 mrq.cmd = &cmd;
300 mrq.data = &data;
301 mrq.stop = &stop;
302
303 sg_init_one(&sg, buffer, blksz);
304
305 mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write);
306
307 mmc_wait_for_req(test->card->host, &mrq);
308
309 if (cmd.error)
310 return cmd.error;
311 if (data.error)
312 return data.error;
313
314 return mmc_test_wait_busy(test);
315}
316
317static void mmc_test_free_mem(struct mmc_test_mem *mem)
318{
319 if (!mem)
320 return;
321 while (mem->cnt--)
322 __free_pages(mem->arr[mem->cnt].page,
323 mem->arr[mem->cnt].order);
324 kfree(mem->arr);
325 kfree(mem);
326}
327
328/*
329 * Allocate a lot of memory, preferably max_sz but at least min_sz. In case
330 * there isn't much memory do not exceed 1/16th total lowmem pages. Also do
331 * not exceed a maximum number of segments and try not to make segments much
332 * bigger than maximum segment size.
333 */
334static struct mmc_test_mem *mmc_test_alloc_mem(unsigned long min_sz,
335 unsigned long max_sz,
336 unsigned int max_segs,
337 unsigned int max_seg_sz)
338{
339 unsigned long max_page_cnt = DIV_ROUND_UP(max_sz, PAGE_SIZE);
340 unsigned long min_page_cnt = DIV_ROUND_UP(min_sz, PAGE_SIZE);
341 unsigned long max_seg_page_cnt = DIV_ROUND_UP(max_seg_sz, PAGE_SIZE);
342 unsigned long page_cnt = 0;
343 unsigned long limit = nr_free_buffer_pages() >> 4;
344 struct mmc_test_mem *mem;
345
346 if (max_page_cnt > limit)
347 max_page_cnt = limit;
348 if (min_page_cnt > max_page_cnt)
349 min_page_cnt = max_page_cnt;
350
351 if (max_seg_page_cnt > max_page_cnt)
352 max_seg_page_cnt = max_page_cnt;
353
354 if (max_segs > max_page_cnt)
355 max_segs = max_page_cnt;
356
357 mem = kzalloc(sizeof(*mem), GFP_KERNEL);
358 if (!mem)
359 return NULL;
360
361 mem->arr = kcalloc(max_segs, sizeof(*mem->arr), GFP_KERNEL);
362 if (!mem->arr)
363 goto out_free;
364
365 while (max_page_cnt) {
366 struct page *page;
367 unsigned int order;
368 gfp_t flags = GFP_KERNEL | GFP_DMA | __GFP_NOWARN |
369 __GFP_NORETRY;
370
371 order = get_order(max_seg_page_cnt << PAGE_SHIFT);
372 while (1) {
373 page = alloc_pages(flags, order);
374 if (page || !order)
375 break;
376 order -= 1;
377 }
378 if (!page) {
379 if (page_cnt < min_page_cnt)
380 goto out_free;
381 break;
382 }
383 mem->arr[mem->cnt].page = page;
384 mem->arr[mem->cnt].order = order;
385 mem->cnt += 1;
386 if (max_page_cnt <= (1UL << order))
387 break;
388 max_page_cnt -= 1UL << order;
389 page_cnt += 1UL << order;
390 if (mem->cnt >= max_segs) {
391 if (page_cnt < min_page_cnt)
392 goto out_free;
393 break;
394 }
395 }
396
397 return mem;
398
399out_free:
400 mmc_test_free_mem(mem);
401 return NULL;
402}
403
404/*
405 * Map memory into a scatterlist. Optionally allow the same memory to be
406 * mapped more than once.
407 */
408static int mmc_test_map_sg(struct mmc_test_mem *mem, unsigned long size,
409 struct scatterlist *sglist, int repeat,
410 unsigned int max_segs, unsigned int max_seg_sz,
411 unsigned int *sg_len, int min_sg_len)
412{
413 struct scatterlist *sg = NULL;
414 unsigned int i;
415 unsigned long sz = size;
416
417 sg_init_table(sglist, max_segs);
418 if (min_sg_len > max_segs)
419 min_sg_len = max_segs;
420
421 *sg_len = 0;
422 do {
423 for (i = 0; i < mem->cnt; i++) {
424 unsigned long len = PAGE_SIZE << mem->arr[i].order;
425
426 if (min_sg_len && (size / min_sg_len < len))
427 len = ALIGN(size / min_sg_len, 512);
428 if (len > sz)
429 len = sz;
430 if (len > max_seg_sz)
431 len = max_seg_sz;
432 if (sg)
433 sg = sg_next(sg);
434 else
435 sg = sglist;
436 if (!sg)
437 return -EINVAL;
438 sg_set_page(sg, mem->arr[i].page, len, 0);
439 sz -= len;
440 *sg_len += 1;
441 if (!sz)
442 break;
443 }
444 } while (sz && repeat);
445
446 if (sz)
447 return -EINVAL;
448
449 if (sg)
450 sg_mark_end(sg);
451
452 return 0;
453}
454
455/*
456 * Map memory into a scatterlist so that no pages are contiguous. Allow the
457 * same memory to be mapped more than once.
458 */
459static int mmc_test_map_sg_max_scatter(struct mmc_test_mem *mem,
460 unsigned long sz,
461 struct scatterlist *sglist,
462 unsigned int max_segs,
463 unsigned int max_seg_sz,
464 unsigned int *sg_len)
465{
466 struct scatterlist *sg = NULL;
467 unsigned int i = mem->cnt, cnt;
468 unsigned long len;
469 void *base, *addr, *last_addr = NULL;
470
471 sg_init_table(sglist, max_segs);
472
473 *sg_len = 0;
474 while (sz) {
475 base = page_address(mem->arr[--i].page);
476 cnt = 1 << mem->arr[i].order;
477 while (sz && cnt) {
478 addr = base + PAGE_SIZE * --cnt;
479 if (last_addr && last_addr + PAGE_SIZE == addr)
480 continue;
481 last_addr = addr;
482 len = PAGE_SIZE;
483 if (len > max_seg_sz)
484 len = max_seg_sz;
485 if (len > sz)
486 len = sz;
487 if (sg)
488 sg = sg_next(sg);
489 else
490 sg = sglist;
491 if (!sg)
492 return -EINVAL;
493 sg_set_page(sg, virt_to_page(addr), len, 0);
494 sz -= len;
495 *sg_len += 1;
496 }
497 if (i == 0)
498 i = mem->cnt;
499 }
500
501 if (sg)
502 sg_mark_end(sg);
503
504 return 0;
505}
506
507/*
508 * Calculate transfer rate in bytes per second.
509 */
510static unsigned int mmc_test_rate(uint64_t bytes, struct timespec64 *ts)
511{
512 uint64_t ns;
513
514 ns = timespec64_to_ns(ts);
515 bytes *= 1000000000;
516
517 while (ns > UINT_MAX) {
518 bytes >>= 1;
519 ns >>= 1;
520 }
521
522 if (!ns)
523 return 0;
524
525 do_div(bytes, (uint32_t)ns);
526
527 return bytes;
528}
529
530/*
531 * Save transfer results for future usage
532 */
533static void mmc_test_save_transfer_result(struct mmc_test_card *test,
534 unsigned int count, unsigned int sectors, struct timespec64 ts,
535 unsigned int rate, unsigned int iops)
536{
537 struct mmc_test_transfer_result *tr;
538
539 if (!test->gr)
540 return;
541
542 tr = kmalloc(sizeof(*tr), GFP_KERNEL);
543 if (!tr)
544 return;
545
546 tr->count = count;
547 tr->sectors = sectors;
548 tr->ts = ts;
549 tr->rate = rate;
550 tr->iops = iops;
551
552 list_add_tail(&tr->link, &test->gr->tr_lst);
553}
554
555/*
556 * Print the transfer rate.
557 */
558static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes,
559 struct timespec64 *ts1, struct timespec64 *ts2)
560{
561 unsigned int rate, iops, sectors = bytes >> 9;
562 struct timespec64 ts;
563
564 ts = timespec64_sub(*ts2, *ts1);
565
566 rate = mmc_test_rate(bytes, &ts);
567 iops = mmc_test_rate(100, &ts); /* I/O ops per sec x 100 */
568
569 pr_info("%s: Transfer of %u sectors (%u%s KiB) took %llu.%09u "
570 "seconds (%u kB/s, %u KiB/s, %u.%02u IOPS)\n",
571 mmc_hostname(test->card->host), sectors, sectors >> 1,
572 (sectors & 1 ? ".5" : ""), (u64)ts.tv_sec,
573 (u32)ts.tv_nsec, rate / 1000, rate / 1024,
574 iops / 100, iops % 100);
575
576 mmc_test_save_transfer_result(test, 1, sectors, ts, rate, iops);
577}
578
579/*
580 * Print the average transfer rate.
581 */
582static void mmc_test_print_avg_rate(struct mmc_test_card *test, uint64_t bytes,
583 unsigned int count, struct timespec64 *ts1,
584 struct timespec64 *ts2)
585{
586 unsigned int rate, iops, sectors = bytes >> 9;
587 uint64_t tot = bytes * count;
588 struct timespec64 ts;
589
590 ts = timespec64_sub(*ts2, *ts1);
591
592 rate = mmc_test_rate(tot, &ts);
593 iops = mmc_test_rate(count * 100, &ts); /* I/O ops per sec x 100 */
594
595 pr_info("%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
596 "%llu.%09u seconds (%u kB/s, %u KiB/s, "
597 "%u.%02u IOPS, sg_len %d)\n",
598 mmc_hostname(test->card->host), count, sectors, count,
599 sectors >> 1, (sectors & 1 ? ".5" : ""),
600 (u64)ts.tv_sec, (u32)ts.tv_nsec,
601 rate / 1000, rate / 1024, iops / 100, iops % 100,
602 test->area.sg_len);
603
604 mmc_test_save_transfer_result(test, count, sectors, ts, rate, iops);
605}
606
607/*
608 * Return the card size in sectors.
609 */
610static unsigned int mmc_test_capacity(struct mmc_card *card)
611{
612 if (!mmc_card_sd(card) && mmc_card_blockaddr(card))
613 return card->ext_csd.sectors;
614 else
615 return card->csd.capacity << (card->csd.read_blkbits - 9);
616}
617
618/*******************************************************************/
619/* Test preparation and cleanup */
620/*******************************************************************/
621
622/*
623 * Fill the first couple of sectors of the card with known data
624 * so that bad reads/writes can be detected
625 */
626static int __mmc_test_prepare(struct mmc_test_card *test, int write, int val)
627{
628 int ret, i;
629
630 ret = mmc_test_set_blksize(test, 512);
631 if (ret)
632 return ret;
633
634 if (write)
635 memset(test->buffer, val, 512);
636 else {
637 for (i = 0; i < 512; i++)
638 test->buffer[i] = i;
639 }
640
641 for (i = 0; i < BUFFER_SIZE / 512; i++) {
642 ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
643 if (ret)
644 return ret;
645 }
646
647 return 0;
648}
649
650static int mmc_test_prepare_write(struct mmc_test_card *test)
651{
652 return __mmc_test_prepare(test, 1, 0xDF);
653}
654
655static int mmc_test_prepare_read(struct mmc_test_card *test)
656{
657 return __mmc_test_prepare(test, 0, 0);
658}
659
660static int mmc_test_cleanup(struct mmc_test_card *test)
661{
662 return __mmc_test_prepare(test, 1, 0);
663}
664
665/*******************************************************************/
666/* Test execution helpers */
667/*******************************************************************/
668
669/*
670 * Modifies the mmc_request to perform the "short transfer" tests
671 */
672static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
673 struct mmc_request *mrq, int write)
674{
675 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
676 return;
677
678 if (mrq->data->blocks > 1) {
679 mrq->cmd->opcode = write ?
680 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
681 mrq->stop = NULL;
682 } else {
683 mrq->cmd->opcode = MMC_SEND_STATUS;
684 mrq->cmd->arg = test->card->rca << 16;
685 }
686}
687
688/*
689 * Checks that a normal transfer didn't have any errors
690 */
691static int mmc_test_check_result(struct mmc_test_card *test,
692 struct mmc_request *mrq)
693{
694 int ret;
695
696 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
697 return -EINVAL;
698
699 ret = 0;
700
701 if (mrq->sbc && mrq->sbc->error)
702 ret = mrq->sbc->error;
703 if (!ret && mrq->cmd->error)
704 ret = mrq->cmd->error;
705 if (!ret && mrq->data->error)
706 ret = mrq->data->error;
707 if (!ret && mrq->stop && mrq->stop->error)
708 ret = mrq->stop->error;
709 if (!ret && mrq->data->bytes_xfered !=
710 mrq->data->blocks * mrq->data->blksz)
711 ret = RESULT_FAIL;
712
713 if (ret == -EINVAL)
714 ret = RESULT_UNSUP_HOST;
715
716 return ret;
717}
718
719/*
720 * Checks that a "short transfer" behaved as expected
721 */
722static int mmc_test_check_broken_result(struct mmc_test_card *test,
723 struct mmc_request *mrq)
724{
725 int ret;
726
727 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
728 return -EINVAL;
729
730 ret = 0;
731
732 if (!ret && mrq->cmd->error)
733 ret = mrq->cmd->error;
734 if (!ret && mrq->data->error == 0)
735 ret = RESULT_FAIL;
736 if (!ret && mrq->data->error != -ETIMEDOUT)
737 ret = mrq->data->error;
738 if (!ret && mrq->stop && mrq->stop->error)
739 ret = mrq->stop->error;
740 if (mrq->data->blocks > 1) {
741 if (!ret && mrq->data->bytes_xfered > mrq->data->blksz)
742 ret = RESULT_FAIL;
743 } else {
744 if (!ret && mrq->data->bytes_xfered > 0)
745 ret = RESULT_FAIL;
746 }
747
748 if (ret == -EINVAL)
749 ret = RESULT_UNSUP_HOST;
750
751 return ret;
752}
753
754struct mmc_test_req {
755 struct mmc_request mrq;
756 struct mmc_command sbc;
757 struct mmc_command cmd;
758 struct mmc_command stop;
759 struct mmc_command status;
760 struct mmc_data data;
761};
762
763/*
764 * Tests nonblock transfer with certain parameters
765 */
766static void mmc_test_req_reset(struct mmc_test_req *rq)
767{
768 memset(rq, 0, sizeof(struct mmc_test_req));
769
770 rq->mrq.cmd = &rq->cmd;
771 rq->mrq.data = &rq->data;
772 rq->mrq.stop = &rq->stop;
773}
774
775static struct mmc_test_req *mmc_test_req_alloc(void)
776{
777 struct mmc_test_req *rq = kmalloc(sizeof(*rq), GFP_KERNEL);
778
779 if (rq)
780 mmc_test_req_reset(rq);
781
782 return rq;
783}
784
785static void mmc_test_wait_done(struct mmc_request *mrq)
786{
787 complete(&mrq->completion);
788}
789
790static int mmc_test_start_areq(struct mmc_test_card *test,
791 struct mmc_request *mrq,
792 struct mmc_request *prev_mrq)
793{
794 struct mmc_host *host = test->card->host;
795 int err = 0;
796
797 if (mrq) {
798 init_completion(&mrq->completion);
799 mrq->done = mmc_test_wait_done;
800 mmc_pre_req(host, mrq);
801 }
802
803 if (prev_mrq) {
804 wait_for_completion(&prev_mrq->completion);
805 err = mmc_test_wait_busy(test);
806 if (!err)
807 err = mmc_test_check_result(test, prev_mrq);
808 }
809
810 if (!err && mrq) {
811 err = mmc_start_request(host, mrq);
812 if (err)
813 mmc_retune_release(host);
814 }
815
816 if (prev_mrq)
817 mmc_post_req(host, prev_mrq, 0);
818
819 if (err && mrq)
820 mmc_post_req(host, mrq, err);
821
822 return err;
823}
824
825static int mmc_test_nonblock_transfer(struct mmc_test_card *test,
826 unsigned int dev_addr, int write,
827 int count)
828{
829 struct mmc_test_req *rq1, *rq2;
830 struct mmc_request *mrq, *prev_mrq;
831 int i;
832 int ret = RESULT_OK;
833 struct mmc_test_area *t = &test->area;
834 struct scatterlist *sg = t->sg;
835 struct scatterlist *sg_areq = t->sg_areq;
836
837 rq1 = mmc_test_req_alloc();
838 rq2 = mmc_test_req_alloc();
839 if (!rq1 || !rq2) {
840 ret = RESULT_FAIL;
841 goto err;
842 }
843
844 mrq = &rq1->mrq;
845 prev_mrq = NULL;
846
847 for (i = 0; i < count; i++) {
848 mmc_test_req_reset(container_of(mrq, struct mmc_test_req, mrq));
849 mmc_test_prepare_mrq(test, mrq, sg, t->sg_len, dev_addr,
850 t->blocks, 512, write);
851 ret = mmc_test_start_areq(test, mrq, prev_mrq);
852 if (ret)
853 goto err;
854
855 if (!prev_mrq)
856 prev_mrq = &rq2->mrq;
857
858 swap(mrq, prev_mrq);
859 swap(sg, sg_areq);
860 dev_addr += t->blocks;
861 }
862
863 ret = mmc_test_start_areq(test, NULL, prev_mrq);
864err:
865 kfree(rq1);
866 kfree(rq2);
867 return ret;
868}
869
870/*
871 * Tests a basic transfer with certain parameters
872 */
873static int mmc_test_simple_transfer(struct mmc_test_card *test,
874 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
875 unsigned blocks, unsigned blksz, int write)
876{
877 struct mmc_request mrq = {};
878 struct mmc_command cmd = {};
879 struct mmc_command stop = {};
880 struct mmc_data data = {};
881
882 mrq.cmd = &cmd;
883 mrq.data = &data;
884 mrq.stop = &stop;
885
886 mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr,
887 blocks, blksz, write);
888
889 mmc_wait_for_req(test->card->host, &mrq);
890
891 mmc_test_wait_busy(test);
892
893 return mmc_test_check_result(test, &mrq);
894}
895
896/*
897 * Tests a transfer where the card will fail completely or partly
898 */
899static int mmc_test_broken_transfer(struct mmc_test_card *test,
900 unsigned blocks, unsigned blksz, int write)
901{
902 struct mmc_request mrq = {};
903 struct mmc_command cmd = {};
904 struct mmc_command stop = {};
905 struct mmc_data data = {};
906
907 struct scatterlist sg;
908
909 mrq.cmd = &cmd;
910 mrq.data = &data;
911 mrq.stop = &stop;
912
913 sg_init_one(&sg, test->buffer, blocks * blksz);
914
915 mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write);
916 mmc_test_prepare_broken_mrq(test, &mrq, write);
917
918 mmc_wait_for_req(test->card->host, &mrq);
919
920 mmc_test_wait_busy(test);
921
922 return mmc_test_check_broken_result(test, &mrq);
923}
924
925/*
926 * Does a complete transfer test where data is also validated
927 *
928 * Note: mmc_test_prepare() must have been done before this call
929 */
930static int mmc_test_transfer(struct mmc_test_card *test,
931 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
932 unsigned blocks, unsigned blksz, int write)
933{
934 int ret, i;
935
936 if (write) {
937 for (i = 0; i < blocks * blksz; i++)
938 test->scratch[i] = i;
939 } else {
940 memset(test->scratch, 0, BUFFER_SIZE);
941 }
942 sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
943
944 ret = mmc_test_set_blksize(test, blksz);
945 if (ret)
946 return ret;
947
948 ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr,
949 blocks, blksz, write);
950 if (ret)
951 return ret;
952
953 if (write) {
954 int sectors;
955
956 ret = mmc_test_set_blksize(test, 512);
957 if (ret)
958 return ret;
959
960 sectors = (blocks * blksz + 511) / 512;
961 if ((sectors * 512) == (blocks * blksz))
962 sectors++;
963
964 if ((sectors * 512) > BUFFER_SIZE)
965 return -EINVAL;
966
967 memset(test->buffer, 0, sectors * 512);
968
969 for (i = 0; i < sectors; i++) {
970 ret = mmc_test_buffer_transfer(test,
971 test->buffer + i * 512,
972 dev_addr + i, 512, 0);
973 if (ret)
974 return ret;
975 }
976
977 for (i = 0; i < blocks * blksz; i++) {
978 if (test->buffer[i] != (u8)i)
979 return RESULT_FAIL;
980 }
981
982 for (; i < sectors * 512; i++) {
983 if (test->buffer[i] != 0xDF)
984 return RESULT_FAIL;
985 }
986 } else {
987 sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
988 for (i = 0; i < blocks * blksz; i++) {
989 if (test->scratch[i] != (u8)i)
990 return RESULT_FAIL;
991 }
992 }
993
994 return 0;
995}
996
997/*******************************************************************/
998/* Tests */
999/*******************************************************************/
1000
1001struct mmc_test_case {
1002 const char *name;
1003
1004 int (*prepare)(struct mmc_test_card *);
1005 int (*run)(struct mmc_test_card *);
1006 int (*cleanup)(struct mmc_test_card *);
1007};
1008
1009static int mmc_test_basic_write(struct mmc_test_card *test)
1010{
1011 int ret;
1012 struct scatterlist sg;
1013
1014 ret = mmc_test_set_blksize(test, 512);
1015 if (ret)
1016 return ret;
1017
1018 sg_init_one(&sg, test->buffer, 512);
1019
1020 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
1021}
1022
1023static int mmc_test_basic_read(struct mmc_test_card *test)
1024{
1025 int ret;
1026 struct scatterlist sg;
1027
1028 ret = mmc_test_set_blksize(test, 512);
1029 if (ret)
1030 return ret;
1031
1032 sg_init_one(&sg, test->buffer, 512);
1033
1034 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
1035}
1036
1037static int mmc_test_verify_write(struct mmc_test_card *test)
1038{
1039 struct scatterlist sg;
1040
1041 sg_init_one(&sg, test->buffer, 512);
1042
1043 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1044}
1045
1046static int mmc_test_verify_read(struct mmc_test_card *test)
1047{
1048 struct scatterlist sg;
1049
1050 sg_init_one(&sg, test->buffer, 512);
1051
1052 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1053}
1054
1055static int mmc_test_multi_write(struct mmc_test_card *test)
1056{
1057 unsigned int size;
1058 struct scatterlist sg;
1059
1060 if (test->card->host->max_blk_count == 1)
1061 return RESULT_UNSUP_HOST;
1062
1063 size = PAGE_SIZE * 2;
1064 size = min(size, test->card->host->max_req_size);
1065 size = min(size, test->card->host->max_seg_size);
1066 size = min(size, test->card->host->max_blk_count * 512);
1067
1068 if (size < 1024)
1069 return RESULT_UNSUP_HOST;
1070
1071 sg_init_one(&sg, test->buffer, size);
1072
1073 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1074}
1075
1076static int mmc_test_multi_read(struct mmc_test_card *test)
1077{
1078 unsigned int size;
1079 struct scatterlist sg;
1080
1081 if (test->card->host->max_blk_count == 1)
1082 return RESULT_UNSUP_HOST;
1083
1084 size = PAGE_SIZE * 2;
1085 size = min(size, test->card->host->max_req_size);
1086 size = min(size, test->card->host->max_seg_size);
1087 size = min(size, test->card->host->max_blk_count * 512);
1088
1089 if (size < 1024)
1090 return RESULT_UNSUP_HOST;
1091
1092 sg_init_one(&sg, test->buffer, size);
1093
1094 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1095}
1096
1097static int mmc_test_pow2_write(struct mmc_test_card *test)
1098{
1099 int ret, i;
1100 struct scatterlist sg;
1101
1102 if (!test->card->csd.write_partial)
1103 return RESULT_UNSUP_CARD;
1104
1105 for (i = 1; i < 512; i <<= 1) {
1106 sg_init_one(&sg, test->buffer, i);
1107 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1108 if (ret)
1109 return ret;
1110 }
1111
1112 return 0;
1113}
1114
1115static int mmc_test_pow2_read(struct mmc_test_card *test)
1116{
1117 int ret, i;
1118 struct scatterlist sg;
1119
1120 if (!test->card->csd.read_partial)
1121 return RESULT_UNSUP_CARD;
1122
1123 for (i = 1; i < 512; i <<= 1) {
1124 sg_init_one(&sg, test->buffer, i);
1125 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1126 if (ret)
1127 return ret;
1128 }
1129
1130 return 0;
1131}
1132
1133static int mmc_test_weird_write(struct mmc_test_card *test)
1134{
1135 int ret, i;
1136 struct scatterlist sg;
1137
1138 if (!test->card->csd.write_partial)
1139 return RESULT_UNSUP_CARD;
1140
1141 for (i = 3; i < 512; i += 7) {
1142 sg_init_one(&sg, test->buffer, i);
1143 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1144 if (ret)
1145 return ret;
1146 }
1147
1148 return 0;
1149}
1150
1151static int mmc_test_weird_read(struct mmc_test_card *test)
1152{
1153 int ret, i;
1154 struct scatterlist sg;
1155
1156 if (!test->card->csd.read_partial)
1157 return RESULT_UNSUP_CARD;
1158
1159 for (i = 3; i < 512; i += 7) {
1160 sg_init_one(&sg, test->buffer, i);
1161 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1162 if (ret)
1163 return ret;
1164 }
1165
1166 return 0;
1167}
1168
1169static int mmc_test_align_write(struct mmc_test_card *test)
1170{
1171 int ret, i;
1172 struct scatterlist sg;
1173
1174 for (i = 1; i < TEST_ALIGN_END; i++) {
1175 sg_init_one(&sg, test->buffer + i, 512);
1176 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1177 if (ret)
1178 return ret;
1179 }
1180
1181 return 0;
1182}
1183
1184static int mmc_test_align_read(struct mmc_test_card *test)
1185{
1186 int ret, i;
1187 struct scatterlist sg;
1188
1189 for (i = 1; i < TEST_ALIGN_END; i++) {
1190 sg_init_one(&sg, test->buffer + i, 512);
1191 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1192 if (ret)
1193 return ret;
1194 }
1195
1196 return 0;
1197}
1198
1199static int mmc_test_align_multi_write(struct mmc_test_card *test)
1200{
1201 int ret, i;
1202 unsigned int size;
1203 struct scatterlist sg;
1204
1205 if (test->card->host->max_blk_count == 1)
1206 return RESULT_UNSUP_HOST;
1207
1208 size = PAGE_SIZE * 2;
1209 size = min(size, test->card->host->max_req_size);
1210 size = min(size, test->card->host->max_seg_size);
1211 size = min(size, test->card->host->max_blk_count * 512);
1212
1213 if (size < 1024)
1214 return RESULT_UNSUP_HOST;
1215
1216 for (i = 1; i < TEST_ALIGN_END; i++) {
1217 sg_init_one(&sg, test->buffer + i, size);
1218 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1219 if (ret)
1220 return ret;
1221 }
1222
1223 return 0;
1224}
1225
1226static int mmc_test_align_multi_read(struct mmc_test_card *test)
1227{
1228 int ret, i;
1229 unsigned int size;
1230 struct scatterlist sg;
1231
1232 if (test->card->host->max_blk_count == 1)
1233 return RESULT_UNSUP_HOST;
1234
1235 size = PAGE_SIZE * 2;
1236 size = min(size, test->card->host->max_req_size);
1237 size = min(size, test->card->host->max_seg_size);
1238 size = min(size, test->card->host->max_blk_count * 512);
1239
1240 if (size < 1024)
1241 return RESULT_UNSUP_HOST;
1242
1243 for (i = 1; i < TEST_ALIGN_END; i++) {
1244 sg_init_one(&sg, test->buffer + i, size);
1245 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1246 if (ret)
1247 return ret;
1248 }
1249
1250 return 0;
1251}
1252
1253static int mmc_test_xfersize_write(struct mmc_test_card *test)
1254{
1255 int ret;
1256
1257 ret = mmc_test_set_blksize(test, 512);
1258 if (ret)
1259 return ret;
1260
1261 return mmc_test_broken_transfer(test, 1, 512, 1);
1262}
1263
1264static int mmc_test_xfersize_read(struct mmc_test_card *test)
1265{
1266 int ret;
1267
1268 ret = mmc_test_set_blksize(test, 512);
1269 if (ret)
1270 return ret;
1271
1272 return mmc_test_broken_transfer(test, 1, 512, 0);
1273}
1274
1275static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
1276{
1277 int ret;
1278
1279 if (test->card->host->max_blk_count == 1)
1280 return RESULT_UNSUP_HOST;
1281
1282 ret = mmc_test_set_blksize(test, 512);
1283 if (ret)
1284 return ret;
1285
1286 return mmc_test_broken_transfer(test, 2, 512, 1);
1287}
1288
1289static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
1290{
1291 int ret;
1292
1293 if (test->card->host->max_blk_count == 1)
1294 return RESULT_UNSUP_HOST;
1295
1296 ret = mmc_test_set_blksize(test, 512);
1297 if (ret)
1298 return ret;
1299
1300 return mmc_test_broken_transfer(test, 2, 512, 0);
1301}
1302
1303#ifdef CONFIG_HIGHMEM
1304
1305static int mmc_test_write_high(struct mmc_test_card *test)
1306{
1307 struct scatterlist sg;
1308
1309 sg_init_table(&sg, 1);
1310 sg_set_page(&sg, test->highmem, 512, 0);
1311
1312 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1313}
1314
1315static int mmc_test_read_high(struct mmc_test_card *test)
1316{
1317 struct scatterlist sg;
1318
1319 sg_init_table(&sg, 1);
1320 sg_set_page(&sg, test->highmem, 512, 0);
1321
1322 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1323}
1324
1325static int mmc_test_multi_write_high(struct mmc_test_card *test)
1326{
1327 unsigned int size;
1328 struct scatterlist sg;
1329
1330 if (test->card->host->max_blk_count == 1)
1331 return RESULT_UNSUP_HOST;
1332
1333 size = PAGE_SIZE * 2;
1334 size = min(size, test->card->host->max_req_size);
1335 size = min(size, test->card->host->max_seg_size);
1336 size = min(size, test->card->host->max_blk_count * 512);
1337
1338 if (size < 1024)
1339 return RESULT_UNSUP_HOST;
1340
1341 sg_init_table(&sg, 1);
1342 sg_set_page(&sg, test->highmem, size, 0);
1343
1344 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1345}
1346
1347static int mmc_test_multi_read_high(struct mmc_test_card *test)
1348{
1349 unsigned int size;
1350 struct scatterlist sg;
1351
1352 if (test->card->host->max_blk_count == 1)
1353 return RESULT_UNSUP_HOST;
1354
1355 size = PAGE_SIZE * 2;
1356 size = min(size, test->card->host->max_req_size);
1357 size = min(size, test->card->host->max_seg_size);
1358 size = min(size, test->card->host->max_blk_count * 512);
1359
1360 if (size < 1024)
1361 return RESULT_UNSUP_HOST;
1362
1363 sg_init_table(&sg, 1);
1364 sg_set_page(&sg, test->highmem, size, 0);
1365
1366 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1367}
1368
1369#else
1370
1371static int mmc_test_no_highmem(struct mmc_test_card *test)
1372{
1373 pr_info("%s: Highmem not configured - test skipped\n",
1374 mmc_hostname(test->card->host));
1375 return 0;
1376}
1377
1378#endif /* CONFIG_HIGHMEM */
1379
1380/*
1381 * Map sz bytes so that it can be transferred.
1382 */
1383static int mmc_test_area_map(struct mmc_test_card *test, unsigned long sz,
1384 int max_scatter, int min_sg_len, bool nonblock)
1385{
1386 struct mmc_test_area *t = &test->area;
1387 int err;
1388 unsigned int sg_len = 0;
1389
1390 t->blocks = sz >> 9;
1391
1392 if (max_scatter) {
1393 err = mmc_test_map_sg_max_scatter(t->mem, sz, t->sg,
1394 t->max_segs, t->max_seg_sz,
1395 &t->sg_len);
1396 } else {
1397 err = mmc_test_map_sg(t->mem, sz, t->sg, 1, t->max_segs,
1398 t->max_seg_sz, &t->sg_len, min_sg_len);
1399 }
1400
1401 if (err || !nonblock)
1402 goto err;
1403
1404 if (max_scatter) {
1405 err = mmc_test_map_sg_max_scatter(t->mem, sz, t->sg_areq,
1406 t->max_segs, t->max_seg_sz,
1407 &sg_len);
1408 } else {
1409 err = mmc_test_map_sg(t->mem, sz, t->sg_areq, 1, t->max_segs,
1410 t->max_seg_sz, &sg_len, min_sg_len);
1411 }
1412 if (!err && sg_len != t->sg_len)
1413 err = -EINVAL;
1414
1415err:
1416 if (err)
1417 pr_info("%s: Failed to map sg list\n",
1418 mmc_hostname(test->card->host));
1419 return err;
1420}
1421
1422/*
1423 * Transfer bytes mapped by mmc_test_area_map().
1424 */
1425static int mmc_test_area_transfer(struct mmc_test_card *test,
1426 unsigned int dev_addr, int write)
1427{
1428 struct mmc_test_area *t = &test->area;
1429
1430 return mmc_test_simple_transfer(test, t->sg, t->sg_len, dev_addr,
1431 t->blocks, 512, write);
1432}
1433
1434/*
1435 * Map and transfer bytes for multiple transfers.
1436 */
1437static int mmc_test_area_io_seq(struct mmc_test_card *test, unsigned long sz,
1438 unsigned int dev_addr, int write,
1439 int max_scatter, int timed, int count,
1440 bool nonblock, int min_sg_len)
1441{
1442 struct timespec64 ts1, ts2;
1443 int ret = 0;
1444 int i;
1445
1446 /*
1447 * In the case of a maximally scattered transfer, the maximum transfer
1448 * size is further limited by using PAGE_SIZE segments.
1449 */
1450 if (max_scatter) {
1451 struct mmc_test_area *t = &test->area;
1452 unsigned long max_tfr;
1453
1454 if (t->max_seg_sz >= PAGE_SIZE)
1455 max_tfr = t->max_segs * PAGE_SIZE;
1456 else
1457 max_tfr = t->max_segs * t->max_seg_sz;
1458 if (sz > max_tfr)
1459 sz = max_tfr;
1460 }
1461
1462 ret = mmc_test_area_map(test, sz, max_scatter, min_sg_len, nonblock);
1463 if (ret)
1464 return ret;
1465
1466 if (timed)
1467 ktime_get_ts64(&ts1);
1468 if (nonblock)
1469 ret = mmc_test_nonblock_transfer(test, dev_addr, write, count);
1470 else
1471 for (i = 0; i < count && ret == 0; i++) {
1472 ret = mmc_test_area_transfer(test, dev_addr, write);
1473 dev_addr += sz >> 9;
1474 }
1475
1476 if (ret)
1477 return ret;
1478
1479 if (timed)
1480 ktime_get_ts64(&ts2);
1481
1482 if (timed)
1483 mmc_test_print_avg_rate(test, sz, count, &ts1, &ts2);
1484
1485 return 0;
1486}
1487
1488static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
1489 unsigned int dev_addr, int write, int max_scatter,
1490 int timed)
1491{
1492 return mmc_test_area_io_seq(test, sz, dev_addr, write, max_scatter,
1493 timed, 1, false, 0);
1494}
1495
1496/*
1497 * Write the test area entirely.
1498 */
1499static int mmc_test_area_fill(struct mmc_test_card *test)
1500{
1501 struct mmc_test_area *t = &test->area;
1502
1503 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, 1, 0, 0);
1504}
1505
1506/*
1507 * Erase the test area entirely.
1508 */
1509static int mmc_test_area_erase(struct mmc_test_card *test)
1510{
1511 struct mmc_test_area *t = &test->area;
1512
1513 if (!mmc_can_erase(test->card))
1514 return 0;
1515
1516 return mmc_erase(test->card, t->dev_addr, t->max_sz >> 9,
1517 MMC_ERASE_ARG);
1518}
1519
1520/*
1521 * Cleanup struct mmc_test_area.
1522 */
1523static int mmc_test_area_cleanup(struct mmc_test_card *test)
1524{
1525 struct mmc_test_area *t = &test->area;
1526
1527 kfree(t->sg);
1528 kfree(t->sg_areq);
1529 mmc_test_free_mem(t->mem);
1530
1531 return 0;
1532}
1533
1534/*
1535 * Initialize an area for testing large transfers. The test area is set to the
1536 * middle of the card because cards may have different characteristics at the
1537 * front (for FAT file system optimization). Optionally, the area is erased
1538 * (if the card supports it) which may improve write performance. Optionally,
1539 * the area is filled with data for subsequent read tests.
1540 */
1541static int mmc_test_area_init(struct mmc_test_card *test, int erase, int fill)
1542{
1543 struct mmc_test_area *t = &test->area;
1544 unsigned long min_sz = 64 * 1024, sz;
1545 int ret;
1546
1547 ret = mmc_test_set_blksize(test, 512);
1548 if (ret)
1549 return ret;
1550
1551 /* Make the test area size about 4MiB */
1552 sz = (unsigned long)test->card->pref_erase << 9;
1553 t->max_sz = sz;
1554 while (t->max_sz < 4 * 1024 * 1024)
1555 t->max_sz += sz;
1556 while (t->max_sz > TEST_AREA_MAX_SIZE && t->max_sz > sz)
1557 t->max_sz -= sz;
1558
1559 t->max_segs = test->card->host->max_segs;
1560 t->max_seg_sz = test->card->host->max_seg_size;
1561 t->max_seg_sz -= t->max_seg_sz % 512;
1562
1563 t->max_tfr = t->max_sz;
1564 if (t->max_tfr >> 9 > test->card->host->max_blk_count)
1565 t->max_tfr = test->card->host->max_blk_count << 9;
1566 if (t->max_tfr > test->card->host->max_req_size)
1567 t->max_tfr = test->card->host->max_req_size;
1568 if (t->max_tfr / t->max_seg_sz > t->max_segs)
1569 t->max_tfr = t->max_segs * t->max_seg_sz;
1570
1571 /*
1572 * Try to allocate enough memory for a max. sized transfer. Less is OK
1573 * because the same memory can be mapped into the scatterlist more than
1574 * once. Also, take into account the limits imposed on scatterlist
1575 * segments by the host driver.
1576 */
1577 t->mem = mmc_test_alloc_mem(min_sz, t->max_tfr, t->max_segs,
1578 t->max_seg_sz);
1579 if (!t->mem)
1580 return -ENOMEM;
1581
1582 t->sg = kmalloc_array(t->max_segs, sizeof(*t->sg), GFP_KERNEL);
1583 if (!t->sg) {
1584 ret = -ENOMEM;
1585 goto out_free;
1586 }
1587
1588 t->sg_areq = kmalloc_array(t->max_segs, sizeof(*t->sg_areq),
1589 GFP_KERNEL);
1590 if (!t->sg_areq) {
1591 ret = -ENOMEM;
1592 goto out_free;
1593 }
1594
1595 t->dev_addr = mmc_test_capacity(test->card) / 2;
1596 t->dev_addr -= t->dev_addr % (t->max_sz >> 9);
1597
1598 if (erase) {
1599 ret = mmc_test_area_erase(test);
1600 if (ret)
1601 goto out_free;
1602 }
1603
1604 if (fill) {
1605 ret = mmc_test_area_fill(test);
1606 if (ret)
1607 goto out_free;
1608 }
1609
1610 return 0;
1611
1612out_free:
1613 mmc_test_area_cleanup(test);
1614 return ret;
1615}
1616
1617/*
1618 * Prepare for large transfers. Do not erase the test area.
1619 */
1620static int mmc_test_area_prepare(struct mmc_test_card *test)
1621{
1622 return mmc_test_area_init(test, 0, 0);
1623}
1624
1625/*
1626 * Prepare for large transfers. Do erase the test area.
1627 */
1628static int mmc_test_area_prepare_erase(struct mmc_test_card *test)
1629{
1630 return mmc_test_area_init(test, 1, 0);
1631}
1632
1633/*
1634 * Prepare for large transfers. Erase and fill the test area.
1635 */
1636static int mmc_test_area_prepare_fill(struct mmc_test_card *test)
1637{
1638 return mmc_test_area_init(test, 1, 1);
1639}
1640
1641/*
1642 * Test best-case performance. Best-case performance is expected from
1643 * a single large transfer.
1644 *
1645 * An additional option (max_scatter) allows the measurement of the same
1646 * transfer but with no contiguous pages in the scatter list. This tests
1647 * the efficiency of DMA to handle scattered pages.
1648 */
1649static int mmc_test_best_performance(struct mmc_test_card *test, int write,
1650 int max_scatter)
1651{
1652 struct mmc_test_area *t = &test->area;
1653
1654 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, write,
1655 max_scatter, 1);
1656}
1657
1658/*
1659 * Best-case read performance.
1660 */
1661static int mmc_test_best_read_performance(struct mmc_test_card *test)
1662{
1663 return mmc_test_best_performance(test, 0, 0);
1664}
1665
1666/*
1667 * Best-case write performance.
1668 */
1669static int mmc_test_best_write_performance(struct mmc_test_card *test)
1670{
1671 return mmc_test_best_performance(test, 1, 0);
1672}
1673
1674/*
1675 * Best-case read performance into scattered pages.
1676 */
1677static int mmc_test_best_read_perf_max_scatter(struct mmc_test_card *test)
1678{
1679 return mmc_test_best_performance(test, 0, 1);
1680}
1681
1682/*
1683 * Best-case write performance from scattered pages.
1684 */
1685static int mmc_test_best_write_perf_max_scatter(struct mmc_test_card *test)
1686{
1687 return mmc_test_best_performance(test, 1, 1);
1688}
1689
1690/*
1691 * Single read performance by transfer size.
1692 */
1693static int mmc_test_profile_read_perf(struct mmc_test_card *test)
1694{
1695 struct mmc_test_area *t = &test->area;
1696 unsigned long sz;
1697 unsigned int dev_addr;
1698 int ret;
1699
1700 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1701 dev_addr = t->dev_addr + (sz >> 9);
1702 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1703 if (ret)
1704 return ret;
1705 }
1706 sz = t->max_tfr;
1707 dev_addr = t->dev_addr;
1708 return mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1709}
1710
1711/*
1712 * Single write performance by transfer size.
1713 */
1714static int mmc_test_profile_write_perf(struct mmc_test_card *test)
1715{
1716 struct mmc_test_area *t = &test->area;
1717 unsigned long sz;
1718 unsigned int dev_addr;
1719 int ret;
1720
1721 ret = mmc_test_area_erase(test);
1722 if (ret)
1723 return ret;
1724 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1725 dev_addr = t->dev_addr + (sz >> 9);
1726 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1727 if (ret)
1728 return ret;
1729 }
1730 ret = mmc_test_area_erase(test);
1731 if (ret)
1732 return ret;
1733 sz = t->max_tfr;
1734 dev_addr = t->dev_addr;
1735 return mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1736}
1737
1738/*
1739 * Single trim performance by transfer size.
1740 */
1741static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
1742{
1743 struct mmc_test_area *t = &test->area;
1744 unsigned long sz;
1745 unsigned int dev_addr;
1746 struct timespec64 ts1, ts2;
1747 int ret;
1748
1749 if (!mmc_can_trim(test->card))
1750 return RESULT_UNSUP_CARD;
1751
1752 if (!mmc_can_erase(test->card))
1753 return RESULT_UNSUP_HOST;
1754
1755 for (sz = 512; sz < t->max_sz; sz <<= 1) {
1756 dev_addr = t->dev_addr + (sz >> 9);
1757 ktime_get_ts64(&ts1);
1758 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1759 if (ret)
1760 return ret;
1761 ktime_get_ts64(&ts2);
1762 mmc_test_print_rate(test, sz, &ts1, &ts2);
1763 }
1764 dev_addr = t->dev_addr;
1765 ktime_get_ts64(&ts1);
1766 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1767 if (ret)
1768 return ret;
1769 ktime_get_ts64(&ts2);
1770 mmc_test_print_rate(test, sz, &ts1, &ts2);
1771 return 0;
1772}
1773
1774static int mmc_test_seq_read_perf(struct mmc_test_card *test, unsigned long sz)
1775{
1776 struct mmc_test_area *t = &test->area;
1777 unsigned int dev_addr, i, cnt;
1778 struct timespec64 ts1, ts2;
1779 int ret;
1780
1781 cnt = t->max_sz / sz;
1782 dev_addr = t->dev_addr;
1783 ktime_get_ts64(&ts1);
1784 for (i = 0; i < cnt; i++) {
1785 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 0);
1786 if (ret)
1787 return ret;
1788 dev_addr += (sz >> 9);
1789 }
1790 ktime_get_ts64(&ts2);
1791 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1792 return 0;
1793}
1794
1795/*
1796 * Consecutive read performance by transfer size.
1797 */
1798static int mmc_test_profile_seq_read_perf(struct mmc_test_card *test)
1799{
1800 struct mmc_test_area *t = &test->area;
1801 unsigned long sz;
1802 int ret;
1803
1804 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1805 ret = mmc_test_seq_read_perf(test, sz);
1806 if (ret)
1807 return ret;
1808 }
1809 sz = t->max_tfr;
1810 return mmc_test_seq_read_perf(test, sz);
1811}
1812
1813static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
1814{
1815 struct mmc_test_area *t = &test->area;
1816 unsigned int dev_addr, i, cnt;
1817 struct timespec64 ts1, ts2;
1818 int ret;
1819
1820 ret = mmc_test_area_erase(test);
1821 if (ret)
1822 return ret;
1823 cnt = t->max_sz / sz;
1824 dev_addr = t->dev_addr;
1825 ktime_get_ts64(&ts1);
1826 for (i = 0; i < cnt; i++) {
1827 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 0);
1828 if (ret)
1829 return ret;
1830 dev_addr += (sz >> 9);
1831 }
1832 ktime_get_ts64(&ts2);
1833 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1834 return 0;
1835}
1836
1837/*
1838 * Consecutive write performance by transfer size.
1839 */
1840static int mmc_test_profile_seq_write_perf(struct mmc_test_card *test)
1841{
1842 struct mmc_test_area *t = &test->area;
1843 unsigned long sz;
1844 int ret;
1845
1846 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1847 ret = mmc_test_seq_write_perf(test, sz);
1848 if (ret)
1849 return ret;
1850 }
1851 sz = t->max_tfr;
1852 return mmc_test_seq_write_perf(test, sz);
1853}
1854
1855/*
1856 * Consecutive trim performance by transfer size.
1857 */
1858static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
1859{
1860 struct mmc_test_area *t = &test->area;
1861 unsigned long sz;
1862 unsigned int dev_addr, i, cnt;
1863 struct timespec64 ts1, ts2;
1864 int ret;
1865
1866 if (!mmc_can_trim(test->card))
1867 return RESULT_UNSUP_CARD;
1868
1869 if (!mmc_can_erase(test->card))
1870 return RESULT_UNSUP_HOST;
1871
1872 for (sz = 512; sz <= t->max_sz; sz <<= 1) {
1873 ret = mmc_test_area_erase(test);
1874 if (ret)
1875 return ret;
1876 ret = mmc_test_area_fill(test);
1877 if (ret)
1878 return ret;
1879 cnt = t->max_sz / sz;
1880 dev_addr = t->dev_addr;
1881 ktime_get_ts64(&ts1);
1882 for (i = 0; i < cnt; i++) {
1883 ret = mmc_erase(test->card, dev_addr, sz >> 9,
1884 MMC_TRIM_ARG);
1885 if (ret)
1886 return ret;
1887 dev_addr += (sz >> 9);
1888 }
1889 ktime_get_ts64(&ts2);
1890 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1891 }
1892 return 0;
1893}
1894
1895static unsigned int rnd_next = 1;
1896
1897static unsigned int mmc_test_rnd_num(unsigned int rnd_cnt)
1898{
1899 uint64_t r;
1900
1901 rnd_next = rnd_next * 1103515245 + 12345;
1902 r = (rnd_next >> 16) & 0x7fff;
1903 return (r * rnd_cnt) >> 15;
1904}
1905
1906static int mmc_test_rnd_perf(struct mmc_test_card *test, int write, int print,
1907 unsigned long sz, int secs, int force_retuning)
1908{
1909 unsigned int dev_addr, cnt, rnd_addr, range1, range2, last_ea = 0, ea;
1910 unsigned int ssz;
1911 struct timespec64 ts1, ts2, ts;
1912 int ret;
1913
1914 ssz = sz >> 9;
1915
1916 rnd_addr = mmc_test_capacity(test->card) / 4;
1917 range1 = rnd_addr / test->card->pref_erase;
1918 range2 = range1 / ssz;
1919
1920 ktime_get_ts64(&ts1);
1921 for (cnt = 0; cnt < UINT_MAX; cnt++) {
1922 ktime_get_ts64(&ts2);
1923 ts = timespec64_sub(ts2, ts1);
1924 if (ts.tv_sec >= secs)
1925 break;
1926 ea = mmc_test_rnd_num(range1);
1927 if (ea == last_ea)
1928 ea -= 1;
1929 last_ea = ea;
1930 dev_addr = rnd_addr + test->card->pref_erase * ea +
1931 ssz * mmc_test_rnd_num(range2);
1932 if (force_retuning)
1933 mmc_retune_needed(test->card->host);
1934 ret = mmc_test_area_io(test, sz, dev_addr, write, 0, 0);
1935 if (ret)
1936 return ret;
1937 }
1938 if (print)
1939 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1940 return 0;
1941}
1942
1943static int mmc_test_random_perf(struct mmc_test_card *test, int write)
1944{
1945 struct mmc_test_area *t = &test->area;
1946 unsigned int next;
1947 unsigned long sz;
1948 int ret;
1949
1950 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1951 /*
1952 * When writing, try to get more consistent results by running
1953 * the test twice with exactly the same I/O but outputting the
1954 * results only for the 2nd run.
1955 */
1956 if (write) {
1957 next = rnd_next;
1958 ret = mmc_test_rnd_perf(test, write, 0, sz, 10, 0);
1959 if (ret)
1960 return ret;
1961 rnd_next = next;
1962 }
1963 ret = mmc_test_rnd_perf(test, write, 1, sz, 10, 0);
1964 if (ret)
1965 return ret;
1966 }
1967 sz = t->max_tfr;
1968 if (write) {
1969 next = rnd_next;
1970 ret = mmc_test_rnd_perf(test, write, 0, sz, 10, 0);
1971 if (ret)
1972 return ret;
1973 rnd_next = next;
1974 }
1975 return mmc_test_rnd_perf(test, write, 1, sz, 10, 0);
1976}
1977
1978static int mmc_test_retuning(struct mmc_test_card *test)
1979{
1980 if (!mmc_can_retune(test->card->host)) {
1981 pr_info("%s: No retuning - test skipped\n",
1982 mmc_hostname(test->card->host));
1983 return RESULT_UNSUP_HOST;
1984 }
1985
1986 return mmc_test_rnd_perf(test, 0, 0, 8192, 30, 1);
1987}
1988
1989/*
1990 * Random read performance by transfer size.
1991 */
1992static int mmc_test_random_read_perf(struct mmc_test_card *test)
1993{
1994 return mmc_test_random_perf(test, 0);
1995}
1996
1997/*
1998 * Random write performance by transfer size.
1999 */
2000static int mmc_test_random_write_perf(struct mmc_test_card *test)
2001{
2002 return mmc_test_random_perf(test, 1);
2003}
2004
2005static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
2006 unsigned int tot_sz, int max_scatter)
2007{
2008 struct mmc_test_area *t = &test->area;
2009 unsigned int dev_addr, i, cnt, sz, ssz;
2010 struct timespec64 ts1, ts2;
2011 int ret;
2012
2013 sz = t->max_tfr;
2014
2015 /*
2016 * In the case of a maximally scattered transfer, the maximum transfer
2017 * size is further limited by using PAGE_SIZE segments.
2018 */
2019 if (max_scatter) {
2020 unsigned long max_tfr;
2021
2022 if (t->max_seg_sz >= PAGE_SIZE)
2023 max_tfr = t->max_segs * PAGE_SIZE;
2024 else
2025 max_tfr = t->max_segs * t->max_seg_sz;
2026 if (sz > max_tfr)
2027 sz = max_tfr;
2028 }
2029
2030 ssz = sz >> 9;
2031 dev_addr = mmc_test_capacity(test->card) / 4;
2032 if (tot_sz > dev_addr << 9)
2033 tot_sz = dev_addr << 9;
2034 cnt = tot_sz / sz;
2035 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2036
2037 ktime_get_ts64(&ts1);
2038 for (i = 0; i < cnt; i++) {
2039 ret = mmc_test_area_io(test, sz, dev_addr, write,
2040 max_scatter, 0);
2041 if (ret)
2042 return ret;
2043 dev_addr += ssz;
2044 }
2045 ktime_get_ts64(&ts2);
2046
2047 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
2048
2049 return 0;
2050}
2051
2052static int mmc_test_large_seq_perf(struct mmc_test_card *test, int write)
2053{
2054 int ret, i;
2055
2056 for (i = 0; i < 10; i++) {
2057 ret = mmc_test_seq_perf(test, write, 10 * 1024 * 1024, 1);
2058 if (ret)
2059 return ret;
2060 }
2061 for (i = 0; i < 5; i++) {
2062 ret = mmc_test_seq_perf(test, write, 100 * 1024 * 1024, 1);
2063 if (ret)
2064 return ret;
2065 }
2066 for (i = 0; i < 3; i++) {
2067 ret = mmc_test_seq_perf(test, write, 1000 * 1024 * 1024, 1);
2068 if (ret)
2069 return ret;
2070 }
2071
2072 return ret;
2073}
2074
2075/*
2076 * Large sequential read performance.
2077 */
2078static int mmc_test_large_seq_read_perf(struct mmc_test_card *test)
2079{
2080 return mmc_test_large_seq_perf(test, 0);
2081}
2082
2083/*
2084 * Large sequential write performance.
2085 */
2086static int mmc_test_large_seq_write_perf(struct mmc_test_card *test)
2087{
2088 return mmc_test_large_seq_perf(test, 1);
2089}
2090
2091static int mmc_test_rw_multiple(struct mmc_test_card *test,
2092 struct mmc_test_multiple_rw *tdata,
2093 unsigned int reqsize, unsigned int size,
2094 int min_sg_len)
2095{
2096 unsigned int dev_addr;
2097 struct mmc_test_area *t = &test->area;
2098 int ret = 0;
2099
2100 /* Set up test area */
2101 if (size > mmc_test_capacity(test->card) / 2 * 512)
2102 size = mmc_test_capacity(test->card) / 2 * 512;
2103 if (reqsize > t->max_tfr)
2104 reqsize = t->max_tfr;
2105 dev_addr = mmc_test_capacity(test->card) / 4;
2106 if ((dev_addr & 0xffff0000))
2107 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2108 else
2109 dev_addr &= 0xfffff800; /* Round to 1MiB boundary */
2110 if (!dev_addr)
2111 goto err;
2112
2113 if (reqsize > size)
2114 return 0;
2115
2116 /* prepare test area */
2117 if (mmc_can_erase(test->card) &&
2118 tdata->prepare & MMC_TEST_PREP_ERASE) {
2119 ret = mmc_erase(test->card, dev_addr,
2120 size / 512, test->card->erase_arg);
2121 if (ret)
2122 ret = mmc_erase(test->card, dev_addr,
2123 size / 512, MMC_ERASE_ARG);
2124 if (ret)
2125 goto err;
2126 }
2127
2128 /* Run test */
2129 ret = mmc_test_area_io_seq(test, reqsize, dev_addr,
2130 tdata->do_write, 0, 1, size / reqsize,
2131 tdata->do_nonblock_req, min_sg_len);
2132 if (ret)
2133 goto err;
2134
2135 return ret;
2136 err:
2137 pr_info("[%s] error\n", __func__);
2138 return ret;
2139}
2140
2141static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
2142 struct mmc_test_multiple_rw *rw)
2143{
2144 int ret = 0;
2145 int i;
2146 void *pre_req = test->card->host->ops->pre_req;
2147 void *post_req = test->card->host->ops->post_req;
2148
2149 if (rw->do_nonblock_req &&
2150 ((!pre_req && post_req) || (pre_req && !post_req))) {
2151 pr_info("error: only one of pre/post is defined\n");
2152 return -EINVAL;
2153 }
2154
2155 for (i = 0 ; i < rw->len && ret == 0; i++) {
2156 ret = mmc_test_rw_multiple(test, rw, rw->bs[i], rw->size, 0);
2157 if (ret)
2158 break;
2159 }
2160 return ret;
2161}
2162
2163static int mmc_test_rw_multiple_sg_len(struct mmc_test_card *test,
2164 struct mmc_test_multiple_rw *rw)
2165{
2166 int ret = 0;
2167 int i;
2168
2169 for (i = 0 ; i < rw->len && ret == 0; i++) {
2170 ret = mmc_test_rw_multiple(test, rw, 512 * 1024, rw->size,
2171 rw->sg_len[i]);
2172 if (ret)
2173 break;
2174 }
2175 return ret;
2176}
2177
2178/*
2179 * Multiple blocking write 4k to 4 MB chunks
2180 */
2181static int mmc_test_profile_mult_write_blocking_perf(struct mmc_test_card *test)
2182{
2183 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2184 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2185 struct mmc_test_multiple_rw test_data = {
2186 .bs = bs,
2187 .size = TEST_AREA_MAX_SIZE,
2188 .len = ARRAY_SIZE(bs),
2189 .do_write = true,
2190 .do_nonblock_req = false,
2191 .prepare = MMC_TEST_PREP_ERASE,
2192 };
2193
2194 return mmc_test_rw_multiple_size(test, &test_data);
2195};
2196
2197/*
2198 * Multiple non-blocking write 4k to 4 MB chunks
2199 */
2200static int mmc_test_profile_mult_write_nonblock_perf(struct mmc_test_card *test)
2201{
2202 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2203 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2204 struct mmc_test_multiple_rw test_data = {
2205 .bs = bs,
2206 .size = TEST_AREA_MAX_SIZE,
2207 .len = ARRAY_SIZE(bs),
2208 .do_write = true,
2209 .do_nonblock_req = true,
2210 .prepare = MMC_TEST_PREP_ERASE,
2211 };
2212
2213 return mmc_test_rw_multiple_size(test, &test_data);
2214}
2215
2216/*
2217 * Multiple blocking read 4k to 4 MB chunks
2218 */
2219static int mmc_test_profile_mult_read_blocking_perf(struct mmc_test_card *test)
2220{
2221 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2222 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2223 struct mmc_test_multiple_rw test_data = {
2224 .bs = bs,
2225 .size = TEST_AREA_MAX_SIZE,
2226 .len = ARRAY_SIZE(bs),
2227 .do_write = false,
2228 .do_nonblock_req = false,
2229 .prepare = MMC_TEST_PREP_NONE,
2230 };
2231
2232 return mmc_test_rw_multiple_size(test, &test_data);
2233}
2234
2235/*
2236 * Multiple non-blocking read 4k to 4 MB chunks
2237 */
2238static int mmc_test_profile_mult_read_nonblock_perf(struct mmc_test_card *test)
2239{
2240 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2241 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2242 struct mmc_test_multiple_rw test_data = {
2243 .bs = bs,
2244 .size = TEST_AREA_MAX_SIZE,
2245 .len = ARRAY_SIZE(bs),
2246 .do_write = false,
2247 .do_nonblock_req = true,
2248 .prepare = MMC_TEST_PREP_NONE,
2249 };
2250
2251 return mmc_test_rw_multiple_size(test, &test_data);
2252}
2253
2254/*
2255 * Multiple blocking write 1 to 512 sg elements
2256 */
2257static int mmc_test_profile_sglen_wr_blocking_perf(struct mmc_test_card *test)
2258{
2259 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2260 1 << 7, 1 << 8, 1 << 9};
2261 struct mmc_test_multiple_rw test_data = {
2262 .sg_len = sg_len,
2263 .size = TEST_AREA_MAX_SIZE,
2264 .len = ARRAY_SIZE(sg_len),
2265 .do_write = true,
2266 .do_nonblock_req = false,
2267 .prepare = MMC_TEST_PREP_ERASE,
2268 };
2269
2270 return mmc_test_rw_multiple_sg_len(test, &test_data);
2271};
2272
2273/*
2274 * Multiple non-blocking write 1 to 512 sg elements
2275 */
2276static int mmc_test_profile_sglen_wr_nonblock_perf(struct mmc_test_card *test)
2277{
2278 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2279 1 << 7, 1 << 8, 1 << 9};
2280 struct mmc_test_multiple_rw test_data = {
2281 .sg_len = sg_len,
2282 .size = TEST_AREA_MAX_SIZE,
2283 .len = ARRAY_SIZE(sg_len),
2284 .do_write = true,
2285 .do_nonblock_req = true,
2286 .prepare = MMC_TEST_PREP_ERASE,
2287 };
2288
2289 return mmc_test_rw_multiple_sg_len(test, &test_data);
2290}
2291
2292/*
2293 * Multiple blocking read 1 to 512 sg elements
2294 */
2295static int mmc_test_profile_sglen_r_blocking_perf(struct mmc_test_card *test)
2296{
2297 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2298 1 << 7, 1 << 8, 1 << 9};
2299 struct mmc_test_multiple_rw test_data = {
2300 .sg_len = sg_len,
2301 .size = TEST_AREA_MAX_SIZE,
2302 .len = ARRAY_SIZE(sg_len),
2303 .do_write = false,
2304 .do_nonblock_req = false,
2305 .prepare = MMC_TEST_PREP_NONE,
2306 };
2307
2308 return mmc_test_rw_multiple_sg_len(test, &test_data);
2309}
2310
2311/*
2312 * Multiple non-blocking read 1 to 512 sg elements
2313 */
2314static int mmc_test_profile_sglen_r_nonblock_perf(struct mmc_test_card *test)
2315{
2316 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2317 1 << 7, 1 << 8, 1 << 9};
2318 struct mmc_test_multiple_rw test_data = {
2319 .sg_len = sg_len,
2320 .size = TEST_AREA_MAX_SIZE,
2321 .len = ARRAY_SIZE(sg_len),
2322 .do_write = false,
2323 .do_nonblock_req = true,
2324 .prepare = MMC_TEST_PREP_NONE,
2325 };
2326
2327 return mmc_test_rw_multiple_sg_len(test, &test_data);
2328}
2329
2330/*
2331 * eMMC hardware reset.
2332 */
2333static int mmc_test_reset(struct mmc_test_card *test)
2334{
2335 struct mmc_card *card = test->card;
2336 int err;
2337
2338 err = mmc_hw_reset(card);
2339 if (!err) {
2340 /*
2341 * Reset will re-enable the card's command queue, but tests
2342 * expect it to be disabled.
2343 */
2344 if (card->ext_csd.cmdq_en)
2345 mmc_cmdq_disable(card);
2346 return RESULT_OK;
2347 } else if (err == -EOPNOTSUPP) {
2348 return RESULT_UNSUP_HOST;
2349 }
2350
2351 return RESULT_FAIL;
2352}
2353
2354static int mmc_test_send_status(struct mmc_test_card *test,
2355 struct mmc_command *cmd)
2356{
2357 memset(cmd, 0, sizeof(*cmd));
2358
2359 cmd->opcode = MMC_SEND_STATUS;
2360 if (!mmc_host_is_spi(test->card->host))
2361 cmd->arg = test->card->rca << 16;
2362 cmd->flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
2363
2364 return mmc_wait_for_cmd(test->card->host, cmd, 0);
2365}
2366
2367static int mmc_test_ongoing_transfer(struct mmc_test_card *test,
2368 unsigned int dev_addr, int use_sbc,
2369 int repeat_cmd, int write, int use_areq)
2370{
2371 struct mmc_test_req *rq = mmc_test_req_alloc();
2372 struct mmc_host *host = test->card->host;
2373 struct mmc_test_area *t = &test->area;
2374 struct mmc_request *mrq;
2375 unsigned long timeout;
2376 bool expired = false;
2377 int ret = 0, cmd_ret;
2378 u32 status = 0;
2379 int count = 0;
2380
2381 if (!rq)
2382 return -ENOMEM;
2383
2384 mrq = &rq->mrq;
2385 if (use_sbc)
2386 mrq->sbc = &rq->sbc;
2387 mrq->cap_cmd_during_tfr = true;
2388
2389 mmc_test_prepare_mrq(test, mrq, t->sg, t->sg_len, dev_addr, t->blocks,
2390 512, write);
2391
2392 if (use_sbc && t->blocks > 1 && !mrq->sbc) {
2393 ret = mmc_host_cmd23(host) ?
2394 RESULT_UNSUP_CARD :
2395 RESULT_UNSUP_HOST;
2396 goto out_free;
2397 }
2398
2399 /* Start ongoing data request */
2400 if (use_areq) {
2401 ret = mmc_test_start_areq(test, mrq, NULL);
2402 if (ret)
2403 goto out_free;
2404 } else {
2405 mmc_wait_for_req(host, mrq);
2406 }
2407
2408 timeout = jiffies + msecs_to_jiffies(3000);
2409 do {
2410 count += 1;
2411
2412 /* Send status command while data transfer in progress */
2413 cmd_ret = mmc_test_send_status(test, &rq->status);
2414 if (cmd_ret)
2415 break;
2416
2417 status = rq->status.resp[0];
2418 if (status & R1_ERROR) {
2419 cmd_ret = -EIO;
2420 break;
2421 }
2422
2423 if (mmc_is_req_done(host, mrq))
2424 break;
2425
2426 expired = time_after(jiffies, timeout);
2427 if (expired) {
2428 pr_info("%s: timeout waiting for Tran state status %#x\n",
2429 mmc_hostname(host), status);
2430 cmd_ret = -ETIMEDOUT;
2431 break;
2432 }
2433 } while (repeat_cmd && R1_CURRENT_STATE(status) != R1_STATE_TRAN);
2434
2435 /* Wait for data request to complete */
2436 if (use_areq) {
2437 ret = mmc_test_start_areq(test, NULL, mrq);
2438 } else {
2439 mmc_wait_for_req_done(test->card->host, mrq);
2440 }
2441
2442 /*
2443 * For cap_cmd_during_tfr request, upper layer must send stop if
2444 * required.
2445 */
2446 if (mrq->data->stop && (mrq->data->error || !mrq->sbc)) {
2447 if (ret)
2448 mmc_wait_for_cmd(host, mrq->data->stop, 0);
2449 else
2450 ret = mmc_wait_for_cmd(host, mrq->data->stop, 0);
2451 }
2452
2453 if (ret)
2454 goto out_free;
2455
2456 if (cmd_ret) {
2457 pr_info("%s: Send Status failed: status %#x, error %d\n",
2458 mmc_hostname(test->card->host), status, cmd_ret);
2459 }
2460
2461 ret = mmc_test_check_result(test, mrq);
2462 if (ret)
2463 goto out_free;
2464
2465 ret = mmc_test_wait_busy(test);
2466 if (ret)
2467 goto out_free;
2468
2469 if (repeat_cmd && (t->blocks + 1) << 9 > t->max_tfr)
2470 pr_info("%s: %d commands completed during transfer of %u blocks\n",
2471 mmc_hostname(test->card->host), count, t->blocks);
2472
2473 if (cmd_ret)
2474 ret = cmd_ret;
2475out_free:
2476 kfree(rq);
2477
2478 return ret;
2479}
2480
2481static int __mmc_test_cmds_during_tfr(struct mmc_test_card *test,
2482 unsigned long sz, int use_sbc, int write,
2483 int use_areq)
2484{
2485 struct mmc_test_area *t = &test->area;
2486 int ret;
2487
2488 if (!(test->card->host->caps & MMC_CAP_CMD_DURING_TFR))
2489 return RESULT_UNSUP_HOST;
2490
2491 ret = mmc_test_area_map(test, sz, 0, 0, use_areq);
2492 if (ret)
2493 return ret;
2494
2495 ret = mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 0, write,
2496 use_areq);
2497 if (ret)
2498 return ret;
2499
2500 return mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 1, write,
2501 use_areq);
2502}
2503
2504static int mmc_test_cmds_during_tfr(struct mmc_test_card *test, int use_sbc,
2505 int write, int use_areq)
2506{
2507 struct mmc_test_area *t = &test->area;
2508 unsigned long sz;
2509 int ret;
2510
2511 for (sz = 512; sz <= t->max_tfr; sz += 512) {
2512 ret = __mmc_test_cmds_during_tfr(test, sz, use_sbc, write,
2513 use_areq);
2514 if (ret)
2515 return ret;
2516 }
2517 return 0;
2518}
2519
2520/*
2521 * Commands during read - no Set Block Count (CMD23).
2522 */
2523static int mmc_test_cmds_during_read(struct mmc_test_card *test)
2524{
2525 return mmc_test_cmds_during_tfr(test, 0, 0, 0);
2526}
2527
2528/*
2529 * Commands during write - no Set Block Count (CMD23).
2530 */
2531static int mmc_test_cmds_during_write(struct mmc_test_card *test)
2532{
2533 return mmc_test_cmds_during_tfr(test, 0, 1, 0);
2534}
2535
2536/*
2537 * Commands during read - use Set Block Count (CMD23).
2538 */
2539static int mmc_test_cmds_during_read_cmd23(struct mmc_test_card *test)
2540{
2541 return mmc_test_cmds_during_tfr(test, 1, 0, 0);
2542}
2543
2544/*
2545 * Commands during write - use Set Block Count (CMD23).
2546 */
2547static int mmc_test_cmds_during_write_cmd23(struct mmc_test_card *test)
2548{
2549 return mmc_test_cmds_during_tfr(test, 1, 1, 0);
2550}
2551
2552/*
2553 * Commands during non-blocking read - use Set Block Count (CMD23).
2554 */
2555static int mmc_test_cmds_during_read_cmd23_nonblock(struct mmc_test_card *test)
2556{
2557 return mmc_test_cmds_during_tfr(test, 1, 0, 1);
2558}
2559
2560/*
2561 * Commands during non-blocking write - use Set Block Count (CMD23).
2562 */
2563static int mmc_test_cmds_during_write_cmd23_nonblock(struct mmc_test_card *test)
2564{
2565 return mmc_test_cmds_during_tfr(test, 1, 1, 1);
2566}
2567
2568static const struct mmc_test_case mmc_test_cases[] = {
2569 {
2570 .name = "Basic write (no data verification)",
2571 .run = mmc_test_basic_write,
2572 },
2573
2574 {
2575 .name = "Basic read (no data verification)",
2576 .run = mmc_test_basic_read,
2577 },
2578
2579 {
2580 .name = "Basic write (with data verification)",
2581 .prepare = mmc_test_prepare_write,
2582 .run = mmc_test_verify_write,
2583 .cleanup = mmc_test_cleanup,
2584 },
2585
2586 {
2587 .name = "Basic read (with data verification)",
2588 .prepare = mmc_test_prepare_read,
2589 .run = mmc_test_verify_read,
2590 .cleanup = mmc_test_cleanup,
2591 },
2592
2593 {
2594 .name = "Multi-block write",
2595 .prepare = mmc_test_prepare_write,
2596 .run = mmc_test_multi_write,
2597 .cleanup = mmc_test_cleanup,
2598 },
2599
2600 {
2601 .name = "Multi-block read",
2602 .prepare = mmc_test_prepare_read,
2603 .run = mmc_test_multi_read,
2604 .cleanup = mmc_test_cleanup,
2605 },
2606
2607 {
2608 .name = "Power of two block writes",
2609 .prepare = mmc_test_prepare_write,
2610 .run = mmc_test_pow2_write,
2611 .cleanup = mmc_test_cleanup,
2612 },
2613
2614 {
2615 .name = "Power of two block reads",
2616 .prepare = mmc_test_prepare_read,
2617 .run = mmc_test_pow2_read,
2618 .cleanup = mmc_test_cleanup,
2619 },
2620
2621 {
2622 .name = "Weird sized block writes",
2623 .prepare = mmc_test_prepare_write,
2624 .run = mmc_test_weird_write,
2625 .cleanup = mmc_test_cleanup,
2626 },
2627
2628 {
2629 .name = "Weird sized block reads",
2630 .prepare = mmc_test_prepare_read,
2631 .run = mmc_test_weird_read,
2632 .cleanup = mmc_test_cleanup,
2633 },
2634
2635 {
2636 .name = "Badly aligned write",
2637 .prepare = mmc_test_prepare_write,
2638 .run = mmc_test_align_write,
2639 .cleanup = mmc_test_cleanup,
2640 },
2641
2642 {
2643 .name = "Badly aligned read",
2644 .prepare = mmc_test_prepare_read,
2645 .run = mmc_test_align_read,
2646 .cleanup = mmc_test_cleanup,
2647 },
2648
2649 {
2650 .name = "Badly aligned multi-block write",
2651 .prepare = mmc_test_prepare_write,
2652 .run = mmc_test_align_multi_write,
2653 .cleanup = mmc_test_cleanup,
2654 },
2655
2656 {
2657 .name = "Badly aligned multi-block read",
2658 .prepare = mmc_test_prepare_read,
2659 .run = mmc_test_align_multi_read,
2660 .cleanup = mmc_test_cleanup,
2661 },
2662
2663 {
2664 .name = "Proper xfer_size at write (start failure)",
2665 .run = mmc_test_xfersize_write,
2666 },
2667
2668 {
2669 .name = "Proper xfer_size at read (start failure)",
2670 .run = mmc_test_xfersize_read,
2671 },
2672
2673 {
2674 .name = "Proper xfer_size at write (midway failure)",
2675 .run = mmc_test_multi_xfersize_write,
2676 },
2677
2678 {
2679 .name = "Proper xfer_size at read (midway failure)",
2680 .run = mmc_test_multi_xfersize_read,
2681 },
2682
2683#ifdef CONFIG_HIGHMEM
2684
2685 {
2686 .name = "Highmem write",
2687 .prepare = mmc_test_prepare_write,
2688 .run = mmc_test_write_high,
2689 .cleanup = mmc_test_cleanup,
2690 },
2691
2692 {
2693 .name = "Highmem read",
2694 .prepare = mmc_test_prepare_read,
2695 .run = mmc_test_read_high,
2696 .cleanup = mmc_test_cleanup,
2697 },
2698
2699 {
2700 .name = "Multi-block highmem write",
2701 .prepare = mmc_test_prepare_write,
2702 .run = mmc_test_multi_write_high,
2703 .cleanup = mmc_test_cleanup,
2704 },
2705
2706 {
2707 .name = "Multi-block highmem read",
2708 .prepare = mmc_test_prepare_read,
2709 .run = mmc_test_multi_read_high,
2710 .cleanup = mmc_test_cleanup,
2711 },
2712
2713#else
2714
2715 {
2716 .name = "Highmem write",
2717 .run = mmc_test_no_highmem,
2718 },
2719
2720 {
2721 .name = "Highmem read",
2722 .run = mmc_test_no_highmem,
2723 },
2724
2725 {
2726 .name = "Multi-block highmem write",
2727 .run = mmc_test_no_highmem,
2728 },
2729
2730 {
2731 .name = "Multi-block highmem read",
2732 .run = mmc_test_no_highmem,
2733 },
2734
2735#endif /* CONFIG_HIGHMEM */
2736
2737 {
2738 .name = "Best-case read performance",
2739 .prepare = mmc_test_area_prepare_fill,
2740 .run = mmc_test_best_read_performance,
2741 .cleanup = mmc_test_area_cleanup,
2742 },
2743
2744 {
2745 .name = "Best-case write performance",
2746 .prepare = mmc_test_area_prepare_erase,
2747 .run = mmc_test_best_write_performance,
2748 .cleanup = mmc_test_area_cleanup,
2749 },
2750
2751 {
2752 .name = "Best-case read performance into scattered pages",
2753 .prepare = mmc_test_area_prepare_fill,
2754 .run = mmc_test_best_read_perf_max_scatter,
2755 .cleanup = mmc_test_area_cleanup,
2756 },
2757
2758 {
2759 .name = "Best-case write performance from scattered pages",
2760 .prepare = mmc_test_area_prepare_erase,
2761 .run = mmc_test_best_write_perf_max_scatter,
2762 .cleanup = mmc_test_area_cleanup,
2763 },
2764
2765 {
2766 .name = "Single read performance by transfer size",
2767 .prepare = mmc_test_area_prepare_fill,
2768 .run = mmc_test_profile_read_perf,
2769 .cleanup = mmc_test_area_cleanup,
2770 },
2771
2772 {
2773 .name = "Single write performance by transfer size",
2774 .prepare = mmc_test_area_prepare,
2775 .run = mmc_test_profile_write_perf,
2776 .cleanup = mmc_test_area_cleanup,
2777 },
2778
2779 {
2780 .name = "Single trim performance by transfer size",
2781 .prepare = mmc_test_area_prepare_fill,
2782 .run = mmc_test_profile_trim_perf,
2783 .cleanup = mmc_test_area_cleanup,
2784 },
2785
2786 {
2787 .name = "Consecutive read performance by transfer size",
2788 .prepare = mmc_test_area_prepare_fill,
2789 .run = mmc_test_profile_seq_read_perf,
2790 .cleanup = mmc_test_area_cleanup,
2791 },
2792
2793 {
2794 .name = "Consecutive write performance by transfer size",
2795 .prepare = mmc_test_area_prepare,
2796 .run = mmc_test_profile_seq_write_perf,
2797 .cleanup = mmc_test_area_cleanup,
2798 },
2799
2800 {
2801 .name = "Consecutive trim performance by transfer size",
2802 .prepare = mmc_test_area_prepare,
2803 .run = mmc_test_profile_seq_trim_perf,
2804 .cleanup = mmc_test_area_cleanup,
2805 },
2806
2807 {
2808 .name = "Random read performance by transfer size",
2809 .prepare = mmc_test_area_prepare,
2810 .run = mmc_test_random_read_perf,
2811 .cleanup = mmc_test_area_cleanup,
2812 },
2813
2814 {
2815 .name = "Random write performance by transfer size",
2816 .prepare = mmc_test_area_prepare,
2817 .run = mmc_test_random_write_perf,
2818 .cleanup = mmc_test_area_cleanup,
2819 },
2820
2821 {
2822 .name = "Large sequential read into scattered pages",
2823 .prepare = mmc_test_area_prepare,
2824 .run = mmc_test_large_seq_read_perf,
2825 .cleanup = mmc_test_area_cleanup,
2826 },
2827
2828 {
2829 .name = "Large sequential write from scattered pages",
2830 .prepare = mmc_test_area_prepare,
2831 .run = mmc_test_large_seq_write_perf,
2832 .cleanup = mmc_test_area_cleanup,
2833 },
2834
2835 {
2836 .name = "Write performance with blocking req 4k to 4MB",
2837 .prepare = mmc_test_area_prepare,
2838 .run = mmc_test_profile_mult_write_blocking_perf,
2839 .cleanup = mmc_test_area_cleanup,
2840 },
2841
2842 {
2843 .name = "Write performance with non-blocking req 4k to 4MB",
2844 .prepare = mmc_test_area_prepare,
2845 .run = mmc_test_profile_mult_write_nonblock_perf,
2846 .cleanup = mmc_test_area_cleanup,
2847 },
2848
2849 {
2850 .name = "Read performance with blocking req 4k to 4MB",
2851 .prepare = mmc_test_area_prepare,
2852 .run = mmc_test_profile_mult_read_blocking_perf,
2853 .cleanup = mmc_test_area_cleanup,
2854 },
2855
2856 {
2857 .name = "Read performance with non-blocking req 4k to 4MB",
2858 .prepare = mmc_test_area_prepare,
2859 .run = mmc_test_profile_mult_read_nonblock_perf,
2860 .cleanup = mmc_test_area_cleanup,
2861 },
2862
2863 {
2864 .name = "Write performance blocking req 1 to 512 sg elems",
2865 .prepare = mmc_test_area_prepare,
2866 .run = mmc_test_profile_sglen_wr_blocking_perf,
2867 .cleanup = mmc_test_area_cleanup,
2868 },
2869
2870 {
2871 .name = "Write performance non-blocking req 1 to 512 sg elems",
2872 .prepare = mmc_test_area_prepare,
2873 .run = mmc_test_profile_sglen_wr_nonblock_perf,
2874 .cleanup = mmc_test_area_cleanup,
2875 },
2876
2877 {
2878 .name = "Read performance blocking req 1 to 512 sg elems",
2879 .prepare = mmc_test_area_prepare,
2880 .run = mmc_test_profile_sglen_r_blocking_perf,
2881 .cleanup = mmc_test_area_cleanup,
2882 },
2883
2884 {
2885 .name = "Read performance non-blocking req 1 to 512 sg elems",
2886 .prepare = mmc_test_area_prepare,
2887 .run = mmc_test_profile_sglen_r_nonblock_perf,
2888 .cleanup = mmc_test_area_cleanup,
2889 },
2890
2891 {
2892 .name = "Reset test",
2893 .run = mmc_test_reset,
2894 },
2895
2896 {
2897 .name = "Commands during read - no Set Block Count (CMD23)",
2898 .prepare = mmc_test_area_prepare,
2899 .run = mmc_test_cmds_during_read,
2900 .cleanup = mmc_test_area_cleanup,
2901 },
2902
2903 {
2904 .name = "Commands during write - no Set Block Count (CMD23)",
2905 .prepare = mmc_test_area_prepare,
2906 .run = mmc_test_cmds_during_write,
2907 .cleanup = mmc_test_area_cleanup,
2908 },
2909
2910 {
2911 .name = "Commands during read - use Set Block Count (CMD23)",
2912 .prepare = mmc_test_area_prepare,
2913 .run = mmc_test_cmds_during_read_cmd23,
2914 .cleanup = mmc_test_area_cleanup,
2915 },
2916
2917 {
2918 .name = "Commands during write - use Set Block Count (CMD23)",
2919 .prepare = mmc_test_area_prepare,
2920 .run = mmc_test_cmds_during_write_cmd23,
2921 .cleanup = mmc_test_area_cleanup,
2922 },
2923
2924 {
2925 .name = "Commands during non-blocking read - use Set Block Count (CMD23)",
2926 .prepare = mmc_test_area_prepare,
2927 .run = mmc_test_cmds_during_read_cmd23_nonblock,
2928 .cleanup = mmc_test_area_cleanup,
2929 },
2930
2931 {
2932 .name = "Commands during non-blocking write - use Set Block Count (CMD23)",
2933 .prepare = mmc_test_area_prepare,
2934 .run = mmc_test_cmds_during_write_cmd23_nonblock,
2935 .cleanup = mmc_test_area_cleanup,
2936 },
2937
2938 {
2939 .name = "Re-tuning reliability",
2940 .prepare = mmc_test_area_prepare,
2941 .run = mmc_test_retuning,
2942 .cleanup = mmc_test_area_cleanup,
2943 },
2944
2945};
2946
2947static DEFINE_MUTEX(mmc_test_lock);
2948
2949static LIST_HEAD(mmc_test_result);
2950
2951static void mmc_test_run(struct mmc_test_card *test, int testcase)
2952{
2953 int i, ret;
2954
2955 pr_info("%s: Starting tests of card %s...\n",
2956 mmc_hostname(test->card->host), mmc_card_id(test->card));
2957
2958 mmc_claim_host(test->card->host);
2959
2960 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++) {
2961 struct mmc_test_general_result *gr;
2962
2963 if (testcase && ((i + 1) != testcase))
2964 continue;
2965
2966 pr_info("%s: Test case %d. %s...\n",
2967 mmc_hostname(test->card->host), i + 1,
2968 mmc_test_cases[i].name);
2969
2970 if (mmc_test_cases[i].prepare) {
2971 ret = mmc_test_cases[i].prepare(test);
2972 if (ret) {
2973 pr_info("%s: Result: Prepare stage failed! (%d)\n",
2974 mmc_hostname(test->card->host),
2975 ret);
2976 continue;
2977 }
2978 }
2979
2980 gr = kzalloc(sizeof(*gr), GFP_KERNEL);
2981 if (gr) {
2982 INIT_LIST_HEAD(&gr->tr_lst);
2983
2984 /* Assign data what we know already */
2985 gr->card = test->card;
2986 gr->testcase = i;
2987
2988 /* Append container to global one */
2989 list_add_tail(&gr->link, &mmc_test_result);
2990
2991 /*
2992 * Save the pointer to created container in our private
2993 * structure.
2994 */
2995 test->gr = gr;
2996 }
2997
2998 ret = mmc_test_cases[i].run(test);
2999 switch (ret) {
3000 case RESULT_OK:
3001 pr_info("%s: Result: OK\n",
3002 mmc_hostname(test->card->host));
3003 break;
3004 case RESULT_FAIL:
3005 pr_info("%s: Result: FAILED\n",
3006 mmc_hostname(test->card->host));
3007 break;
3008 case RESULT_UNSUP_HOST:
3009 pr_info("%s: Result: UNSUPPORTED (by host)\n",
3010 mmc_hostname(test->card->host));
3011 break;
3012 case RESULT_UNSUP_CARD:
3013 pr_info("%s: Result: UNSUPPORTED (by card)\n",
3014 mmc_hostname(test->card->host));
3015 break;
3016 default:
3017 pr_info("%s: Result: ERROR (%d)\n",
3018 mmc_hostname(test->card->host), ret);
3019 }
3020
3021 /* Save the result */
3022 if (gr)
3023 gr->result = ret;
3024
3025 if (mmc_test_cases[i].cleanup) {
3026 ret = mmc_test_cases[i].cleanup(test);
3027 if (ret) {
3028 pr_info("%s: Warning: Cleanup stage failed! (%d)\n",
3029 mmc_hostname(test->card->host),
3030 ret);
3031 }
3032 }
3033 }
3034
3035 mmc_release_host(test->card->host);
3036
3037 pr_info("%s: Tests completed.\n",
3038 mmc_hostname(test->card->host));
3039}
3040
3041static void mmc_test_free_result(struct mmc_card *card)
3042{
3043 struct mmc_test_general_result *gr, *grs;
3044
3045 mutex_lock(&mmc_test_lock);
3046
3047 list_for_each_entry_safe(gr, grs, &mmc_test_result, link) {
3048 struct mmc_test_transfer_result *tr, *trs;
3049
3050 if (card && gr->card != card)
3051 continue;
3052
3053 list_for_each_entry_safe(tr, trs, &gr->tr_lst, link) {
3054 list_del(&tr->link);
3055 kfree(tr);
3056 }
3057
3058 list_del(&gr->link);
3059 kfree(gr);
3060 }
3061
3062 mutex_unlock(&mmc_test_lock);
3063}
3064
3065static LIST_HEAD(mmc_test_file_test);
3066
3067static int mtf_test_show(struct seq_file *sf, void *data)
3068{
3069 struct mmc_card *card = sf->private;
3070 struct mmc_test_general_result *gr;
3071
3072 mutex_lock(&mmc_test_lock);
3073
3074 list_for_each_entry(gr, &mmc_test_result, link) {
3075 struct mmc_test_transfer_result *tr;
3076
3077 if (gr->card != card)
3078 continue;
3079
3080 seq_printf(sf, "Test %d: %d\n", gr->testcase + 1, gr->result);
3081
3082 list_for_each_entry(tr, &gr->tr_lst, link) {
3083 seq_printf(sf, "%u %d %llu.%09u %u %u.%02u\n",
3084 tr->count, tr->sectors,
3085 (u64)tr->ts.tv_sec, (u32)tr->ts.tv_nsec,
3086 tr->rate, tr->iops / 100, tr->iops % 100);
3087 }
3088 }
3089
3090 mutex_unlock(&mmc_test_lock);
3091
3092 return 0;
3093}
3094
3095static int mtf_test_open(struct inode *inode, struct file *file)
3096{
3097 return single_open(file, mtf_test_show, inode->i_private);
3098}
3099
3100static ssize_t mtf_test_write(struct file *file, const char __user *buf,
3101 size_t count, loff_t *pos)
3102{
3103 struct seq_file *sf = file->private_data;
3104 struct mmc_card *card = sf->private;
3105 struct mmc_test_card *test;
3106 long testcase;
3107 int ret;
3108
3109 ret = kstrtol_from_user(buf, count, 10, &testcase);
3110 if (ret)
3111 return ret;
3112
3113 test = kzalloc(sizeof(*test), GFP_KERNEL);
3114 if (!test)
3115 return -ENOMEM;
3116
3117 /*
3118 * Remove all test cases associated with given card. Thus we have only
3119 * actual data of the last run.
3120 */
3121 mmc_test_free_result(card);
3122
3123 test->card = card;
3124
3125 test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
3126#ifdef CONFIG_HIGHMEM
3127 test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
3128 if (!test->highmem) {
3129 count = -ENOMEM;
3130 goto free_test_buffer;
3131 }
3132#endif
3133
3134 if (test->buffer) {
3135 mutex_lock(&mmc_test_lock);
3136 mmc_test_run(test, testcase);
3137 mutex_unlock(&mmc_test_lock);
3138 }
3139
3140#ifdef CONFIG_HIGHMEM
3141 __free_pages(test->highmem, BUFFER_ORDER);
3142free_test_buffer:
3143#endif
3144 kfree(test->buffer);
3145 kfree(test);
3146
3147 return count;
3148}
3149
3150static const struct file_operations mmc_test_fops_test = {
3151 .open = mtf_test_open,
3152 .read = seq_read,
3153 .write = mtf_test_write,
3154 .llseek = seq_lseek,
3155 .release = single_release,
3156};
3157
3158static int mtf_testlist_show(struct seq_file *sf, void *data)
3159{
3160 int i;
3161
3162 mutex_lock(&mmc_test_lock);
3163
3164 seq_puts(sf, "0:\tRun all tests\n");
3165 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++)
3166 seq_printf(sf, "%d:\t%s\n", i + 1, mmc_test_cases[i].name);
3167
3168 mutex_unlock(&mmc_test_lock);
3169
3170 return 0;
3171}
3172
3173DEFINE_SHOW_ATTRIBUTE(mtf_testlist);
3174
3175static void mmc_test_free_dbgfs_file(struct mmc_card *card)
3176{
3177 struct mmc_test_dbgfs_file *df, *dfs;
3178
3179 mutex_lock(&mmc_test_lock);
3180
3181 list_for_each_entry_safe(df, dfs, &mmc_test_file_test, link) {
3182 if (card && df->card != card)
3183 continue;
3184 debugfs_remove(df->file);
3185 list_del(&df->link);
3186 kfree(df);
3187 }
3188
3189 mutex_unlock(&mmc_test_lock);
3190}
3191
3192static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
3193 const char *name, umode_t mode, const struct file_operations *fops)
3194{
3195 struct dentry *file = NULL;
3196 struct mmc_test_dbgfs_file *df;
3197
3198 if (card->debugfs_root)
3199 file = debugfs_create_file(name, mode, card->debugfs_root,
3200 card, fops);
3201
3202 df = kmalloc(sizeof(*df), GFP_KERNEL);
3203 if (!df) {
3204 debugfs_remove(file);
3205 return -ENOMEM;
3206 }
3207
3208 df->card = card;
3209 df->file = file;
3210
3211 list_add(&df->link, &mmc_test_file_test);
3212 return 0;
3213}
3214
3215static int mmc_test_register_dbgfs_file(struct mmc_card *card)
3216{
3217 int ret;
3218
3219 mutex_lock(&mmc_test_lock);
3220
3221 ret = __mmc_test_register_dbgfs_file(card, "test", S_IWUSR | S_IRUGO,
3222 &mmc_test_fops_test);
3223 if (ret)
3224 goto err;
3225
3226 ret = __mmc_test_register_dbgfs_file(card, "testlist", S_IRUGO,
3227 &mtf_testlist_fops);
3228 if (ret)
3229 goto err;
3230
3231err:
3232 mutex_unlock(&mmc_test_lock);
3233
3234 return ret;
3235}
3236
3237static int mmc_test_probe(struct mmc_card *card)
3238{
3239 int ret;
3240
3241 if (!mmc_card_mmc(card) && !mmc_card_sd(card))
3242 return -ENODEV;
3243
3244 if (mmc_card_ult_capacity(card)) {
3245 pr_info("%s: mmc-test currently UNSUPPORTED for SDUC\n",
3246 mmc_hostname(card->host));
3247 return -EOPNOTSUPP;
3248 }
3249
3250 ret = mmc_test_register_dbgfs_file(card);
3251 if (ret)
3252 return ret;
3253
3254 if (card->ext_csd.cmdq_en) {
3255 mmc_claim_host(card->host);
3256 ret = mmc_cmdq_disable(card);
3257 mmc_release_host(card->host);
3258 if (ret)
3259 return ret;
3260 }
3261
3262 dev_info(&card->dev, "Card claimed for testing.\n");
3263
3264 return 0;
3265}
3266
3267static void mmc_test_remove(struct mmc_card *card)
3268{
3269 if (card->reenable_cmdq) {
3270 mmc_claim_host(card->host);
3271 mmc_cmdq_enable(card);
3272 mmc_release_host(card->host);
3273 }
3274 mmc_test_free_result(card);
3275 mmc_test_free_dbgfs_file(card);
3276}
3277
3278static struct mmc_driver mmc_driver = {
3279 .drv = {
3280 .name = "mmc_test",
3281 },
3282 .probe = mmc_test_probe,
3283 .remove = mmc_test_remove,
3284};
3285
3286static int __init mmc_test_init(void)
3287{
3288 return mmc_register_driver(&mmc_driver);
3289}
3290
3291static void __exit mmc_test_exit(void)
3292{
3293 /* Clear stalled data if card is still plugged */
3294 mmc_test_free_result(NULL);
3295 mmc_test_free_dbgfs_file(NULL);
3296
3297 mmc_unregister_driver(&mmc_driver);
3298}
3299
3300module_init(mmc_test_init);
3301module_exit(mmc_test_exit);
3302
3303MODULE_LICENSE("GPL");
3304MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver");
3305MODULE_AUTHOR("Pierre Ossman");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright 2007-2008 Pierre Ossman
4 */
5
6#include <linux/mmc/core.h>
7#include <linux/mmc/card.h>
8#include <linux/mmc/host.h>
9#include <linux/mmc/mmc.h>
10#include <linux/slab.h>
11
12#include <linux/scatterlist.h>
13#include <linux/swap.h> /* For nr_free_buffer_pages() */
14#include <linux/list.h>
15
16#include <linux/debugfs.h>
17#include <linux/uaccess.h>
18#include <linux/seq_file.h>
19#include <linux/module.h>
20
21#include "core.h"
22#include "card.h"
23#include "host.h"
24#include "bus.h"
25#include "mmc_ops.h"
26
27#define RESULT_OK 0
28#define RESULT_FAIL 1
29#define RESULT_UNSUP_HOST 2
30#define RESULT_UNSUP_CARD 3
31
32#define BUFFER_ORDER 2
33#define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER)
34
35#define TEST_ALIGN_END 8
36
37/*
38 * Limit the test area size to the maximum MMC HC erase group size. Note that
39 * the maximum SD allocation unit size is just 4MiB.
40 */
41#define TEST_AREA_MAX_SIZE (128 * 1024 * 1024)
42
43/**
44 * struct mmc_test_pages - pages allocated by 'alloc_pages()'.
45 * @page: first page in the allocation
46 * @order: order of the number of pages allocated
47 */
48struct mmc_test_pages {
49 struct page *page;
50 unsigned int order;
51};
52
53/**
54 * struct mmc_test_mem - allocated memory.
55 * @arr: array of allocations
56 * @cnt: number of allocations
57 */
58struct mmc_test_mem {
59 struct mmc_test_pages *arr;
60 unsigned int cnt;
61};
62
63/**
64 * struct mmc_test_area - information for performance tests.
65 * @max_sz: test area size (in bytes)
66 * @dev_addr: address on card at which to do performance tests
67 * @max_tfr: maximum transfer size allowed by driver (in bytes)
68 * @max_segs: maximum segments allowed by driver in scatterlist @sg
69 * @max_seg_sz: maximum segment size allowed by driver
70 * @blocks: number of (512 byte) blocks currently mapped by @sg
71 * @sg_len: length of currently mapped scatterlist @sg
72 * @mem: allocated memory
73 * @sg: scatterlist
74 */
75struct mmc_test_area {
76 unsigned long max_sz;
77 unsigned int dev_addr;
78 unsigned int max_tfr;
79 unsigned int max_segs;
80 unsigned int max_seg_sz;
81 unsigned int blocks;
82 unsigned int sg_len;
83 struct mmc_test_mem *mem;
84 struct scatterlist *sg;
85};
86
87/**
88 * struct mmc_test_transfer_result - transfer results for performance tests.
89 * @link: double-linked list
90 * @count: amount of group of sectors to check
91 * @sectors: amount of sectors to check in one group
92 * @ts: time values of transfer
93 * @rate: calculated transfer rate
94 * @iops: I/O operations per second (times 100)
95 */
96struct mmc_test_transfer_result {
97 struct list_head link;
98 unsigned int count;
99 unsigned int sectors;
100 struct timespec64 ts;
101 unsigned int rate;
102 unsigned int iops;
103};
104
105/**
106 * struct mmc_test_general_result - results for tests.
107 * @link: double-linked list
108 * @card: card under test
109 * @testcase: number of test case
110 * @result: result of test run
111 * @tr_lst: transfer measurements if any as mmc_test_transfer_result
112 */
113struct mmc_test_general_result {
114 struct list_head link;
115 struct mmc_card *card;
116 int testcase;
117 int result;
118 struct list_head tr_lst;
119};
120
121/**
122 * struct mmc_test_dbgfs_file - debugfs related file.
123 * @link: double-linked list
124 * @card: card under test
125 * @file: file created under debugfs
126 */
127struct mmc_test_dbgfs_file {
128 struct list_head link;
129 struct mmc_card *card;
130 struct dentry *file;
131};
132
133/**
134 * struct mmc_test_card - test information.
135 * @card: card under test
136 * @scratch: transfer buffer
137 * @buffer: transfer buffer
138 * @highmem: buffer for highmem tests
139 * @area: information for performance tests
140 * @gr: pointer to results of current testcase
141 */
142struct mmc_test_card {
143 struct mmc_card *card;
144
145 u8 scratch[BUFFER_SIZE];
146 u8 *buffer;
147#ifdef CONFIG_HIGHMEM
148 struct page *highmem;
149#endif
150 struct mmc_test_area area;
151 struct mmc_test_general_result *gr;
152};
153
154enum mmc_test_prep_media {
155 MMC_TEST_PREP_NONE = 0,
156 MMC_TEST_PREP_WRITE_FULL = 1 << 0,
157 MMC_TEST_PREP_ERASE = 1 << 1,
158};
159
160struct mmc_test_multiple_rw {
161 unsigned int *sg_len;
162 unsigned int *bs;
163 unsigned int len;
164 unsigned int size;
165 bool do_write;
166 bool do_nonblock_req;
167 enum mmc_test_prep_media prepare;
168};
169
170/*******************************************************************/
171/* General helper functions */
172/*******************************************************************/
173
174/*
175 * Configure correct block size in card
176 */
177static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size)
178{
179 return mmc_set_blocklen(test->card, size);
180}
181
182static bool mmc_test_card_cmd23(struct mmc_card *card)
183{
184 return mmc_card_mmc(card) ||
185 (mmc_card_sd(card) && card->scr.cmds & SD_SCR_CMD23_SUPPORT);
186}
187
188static void mmc_test_prepare_sbc(struct mmc_test_card *test,
189 struct mmc_request *mrq, unsigned int blocks)
190{
191 struct mmc_card *card = test->card;
192
193 if (!mrq->sbc || !mmc_host_cmd23(card->host) ||
194 !mmc_test_card_cmd23(card) || !mmc_op_multi(mrq->cmd->opcode) ||
195 (card->quirks & MMC_QUIRK_BLK_NO_CMD23)) {
196 mrq->sbc = NULL;
197 return;
198 }
199
200 mrq->sbc->opcode = MMC_SET_BLOCK_COUNT;
201 mrq->sbc->arg = blocks;
202 mrq->sbc->flags = MMC_RSP_R1 | MMC_CMD_AC;
203}
204
205/*
206 * Fill in the mmc_request structure given a set of transfer parameters.
207 */
208static void mmc_test_prepare_mrq(struct mmc_test_card *test,
209 struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
210 unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
211{
212 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop))
213 return;
214
215 if (blocks > 1) {
216 mrq->cmd->opcode = write ?
217 MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK;
218 } else {
219 mrq->cmd->opcode = write ?
220 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
221 }
222
223 mrq->cmd->arg = dev_addr;
224 if (!mmc_card_blockaddr(test->card))
225 mrq->cmd->arg <<= 9;
226
227 mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC;
228
229 if (blocks == 1)
230 mrq->stop = NULL;
231 else {
232 mrq->stop->opcode = MMC_STOP_TRANSMISSION;
233 mrq->stop->arg = 0;
234 mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
235 }
236
237 mrq->data->blksz = blksz;
238 mrq->data->blocks = blocks;
239 mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
240 mrq->data->sg = sg;
241 mrq->data->sg_len = sg_len;
242
243 mmc_test_prepare_sbc(test, mrq, blocks);
244
245 mmc_set_data_timeout(mrq->data, test->card);
246}
247
248static int mmc_test_busy(struct mmc_command *cmd)
249{
250 return !(cmd->resp[0] & R1_READY_FOR_DATA) ||
251 (R1_CURRENT_STATE(cmd->resp[0]) == R1_STATE_PRG);
252}
253
254/*
255 * Wait for the card to finish the busy state
256 */
257static int mmc_test_wait_busy(struct mmc_test_card *test)
258{
259 int ret, busy;
260 struct mmc_command cmd = {};
261
262 busy = 0;
263 do {
264 memset(&cmd, 0, sizeof(struct mmc_command));
265
266 cmd.opcode = MMC_SEND_STATUS;
267 cmd.arg = test->card->rca << 16;
268 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
269
270 ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
271 if (ret)
272 break;
273
274 if (!busy && mmc_test_busy(&cmd)) {
275 busy = 1;
276 if (test->card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
277 pr_info("%s: Warning: Host did not wait for busy state to end.\n",
278 mmc_hostname(test->card->host));
279 }
280 } while (mmc_test_busy(&cmd));
281
282 return ret;
283}
284
285/*
286 * Transfer a single sector of kernel addressable data
287 */
288static int mmc_test_buffer_transfer(struct mmc_test_card *test,
289 u8 *buffer, unsigned addr, unsigned blksz, int write)
290{
291 struct mmc_request mrq = {};
292 struct mmc_command cmd = {};
293 struct mmc_command stop = {};
294 struct mmc_data data = {};
295
296 struct scatterlist sg;
297
298 mrq.cmd = &cmd;
299 mrq.data = &data;
300 mrq.stop = &stop;
301
302 sg_init_one(&sg, buffer, blksz);
303
304 mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write);
305
306 mmc_wait_for_req(test->card->host, &mrq);
307
308 if (cmd.error)
309 return cmd.error;
310 if (data.error)
311 return data.error;
312
313 return mmc_test_wait_busy(test);
314}
315
316static void mmc_test_free_mem(struct mmc_test_mem *mem)
317{
318 if (!mem)
319 return;
320 while (mem->cnt--)
321 __free_pages(mem->arr[mem->cnt].page,
322 mem->arr[mem->cnt].order);
323 kfree(mem->arr);
324 kfree(mem);
325}
326
327/*
328 * Allocate a lot of memory, preferably max_sz but at least min_sz. In case
329 * there isn't much memory do not exceed 1/16th total lowmem pages. Also do
330 * not exceed a maximum number of segments and try not to make segments much
331 * bigger than maximum segment size.
332 */
333static struct mmc_test_mem *mmc_test_alloc_mem(unsigned long min_sz,
334 unsigned long max_sz,
335 unsigned int max_segs,
336 unsigned int max_seg_sz)
337{
338 unsigned long max_page_cnt = DIV_ROUND_UP(max_sz, PAGE_SIZE);
339 unsigned long min_page_cnt = DIV_ROUND_UP(min_sz, PAGE_SIZE);
340 unsigned long max_seg_page_cnt = DIV_ROUND_UP(max_seg_sz, PAGE_SIZE);
341 unsigned long page_cnt = 0;
342 unsigned long limit = nr_free_buffer_pages() >> 4;
343 struct mmc_test_mem *mem;
344
345 if (max_page_cnt > limit)
346 max_page_cnt = limit;
347 if (min_page_cnt > max_page_cnt)
348 min_page_cnt = max_page_cnt;
349
350 if (max_seg_page_cnt > max_page_cnt)
351 max_seg_page_cnt = max_page_cnt;
352
353 if (max_segs > max_page_cnt)
354 max_segs = max_page_cnt;
355
356 mem = kzalloc(sizeof(*mem), GFP_KERNEL);
357 if (!mem)
358 return NULL;
359
360 mem->arr = kcalloc(max_segs, sizeof(*mem->arr), GFP_KERNEL);
361 if (!mem->arr)
362 goto out_free;
363
364 while (max_page_cnt) {
365 struct page *page;
366 unsigned int order;
367 gfp_t flags = GFP_KERNEL | GFP_DMA | __GFP_NOWARN |
368 __GFP_NORETRY;
369
370 order = get_order(max_seg_page_cnt << PAGE_SHIFT);
371 while (1) {
372 page = alloc_pages(flags, order);
373 if (page || !order)
374 break;
375 order -= 1;
376 }
377 if (!page) {
378 if (page_cnt < min_page_cnt)
379 goto out_free;
380 break;
381 }
382 mem->arr[mem->cnt].page = page;
383 mem->arr[mem->cnt].order = order;
384 mem->cnt += 1;
385 if (max_page_cnt <= (1UL << order))
386 break;
387 max_page_cnt -= 1UL << order;
388 page_cnt += 1UL << order;
389 if (mem->cnt >= max_segs) {
390 if (page_cnt < min_page_cnt)
391 goto out_free;
392 break;
393 }
394 }
395
396 return mem;
397
398out_free:
399 mmc_test_free_mem(mem);
400 return NULL;
401}
402
403/*
404 * Map memory into a scatterlist. Optionally allow the same memory to be
405 * mapped more than once.
406 */
407static int mmc_test_map_sg(struct mmc_test_mem *mem, unsigned long size,
408 struct scatterlist *sglist, int repeat,
409 unsigned int max_segs, unsigned int max_seg_sz,
410 unsigned int *sg_len, int min_sg_len)
411{
412 struct scatterlist *sg = NULL;
413 unsigned int i;
414 unsigned long sz = size;
415
416 sg_init_table(sglist, max_segs);
417 if (min_sg_len > max_segs)
418 min_sg_len = max_segs;
419
420 *sg_len = 0;
421 do {
422 for (i = 0; i < mem->cnt; i++) {
423 unsigned long len = PAGE_SIZE << mem->arr[i].order;
424
425 if (min_sg_len && (size / min_sg_len < len))
426 len = ALIGN(size / min_sg_len, 512);
427 if (len > sz)
428 len = sz;
429 if (len > max_seg_sz)
430 len = max_seg_sz;
431 if (sg)
432 sg = sg_next(sg);
433 else
434 sg = sglist;
435 if (!sg)
436 return -EINVAL;
437 sg_set_page(sg, mem->arr[i].page, len, 0);
438 sz -= len;
439 *sg_len += 1;
440 if (!sz)
441 break;
442 }
443 } while (sz && repeat);
444
445 if (sz)
446 return -EINVAL;
447
448 if (sg)
449 sg_mark_end(sg);
450
451 return 0;
452}
453
454/*
455 * Map memory into a scatterlist so that no pages are contiguous. Allow the
456 * same memory to be mapped more than once.
457 */
458static int mmc_test_map_sg_max_scatter(struct mmc_test_mem *mem,
459 unsigned long sz,
460 struct scatterlist *sglist,
461 unsigned int max_segs,
462 unsigned int max_seg_sz,
463 unsigned int *sg_len)
464{
465 struct scatterlist *sg = NULL;
466 unsigned int i = mem->cnt, cnt;
467 unsigned long len;
468 void *base, *addr, *last_addr = NULL;
469
470 sg_init_table(sglist, max_segs);
471
472 *sg_len = 0;
473 while (sz) {
474 base = page_address(mem->arr[--i].page);
475 cnt = 1 << mem->arr[i].order;
476 while (sz && cnt) {
477 addr = base + PAGE_SIZE * --cnt;
478 if (last_addr && last_addr + PAGE_SIZE == addr)
479 continue;
480 last_addr = addr;
481 len = PAGE_SIZE;
482 if (len > max_seg_sz)
483 len = max_seg_sz;
484 if (len > sz)
485 len = sz;
486 if (sg)
487 sg = sg_next(sg);
488 else
489 sg = sglist;
490 if (!sg)
491 return -EINVAL;
492 sg_set_page(sg, virt_to_page(addr), len, 0);
493 sz -= len;
494 *sg_len += 1;
495 }
496 if (i == 0)
497 i = mem->cnt;
498 }
499
500 if (sg)
501 sg_mark_end(sg);
502
503 return 0;
504}
505
506/*
507 * Calculate transfer rate in bytes per second.
508 */
509static unsigned int mmc_test_rate(uint64_t bytes, struct timespec64 *ts)
510{
511 uint64_t ns;
512
513 ns = timespec64_to_ns(ts);
514 bytes *= 1000000000;
515
516 while (ns > UINT_MAX) {
517 bytes >>= 1;
518 ns >>= 1;
519 }
520
521 if (!ns)
522 return 0;
523
524 do_div(bytes, (uint32_t)ns);
525
526 return bytes;
527}
528
529/*
530 * Save transfer results for future usage
531 */
532static void mmc_test_save_transfer_result(struct mmc_test_card *test,
533 unsigned int count, unsigned int sectors, struct timespec64 ts,
534 unsigned int rate, unsigned int iops)
535{
536 struct mmc_test_transfer_result *tr;
537
538 if (!test->gr)
539 return;
540
541 tr = kmalloc(sizeof(*tr), GFP_KERNEL);
542 if (!tr)
543 return;
544
545 tr->count = count;
546 tr->sectors = sectors;
547 tr->ts = ts;
548 tr->rate = rate;
549 tr->iops = iops;
550
551 list_add_tail(&tr->link, &test->gr->tr_lst);
552}
553
554/*
555 * Print the transfer rate.
556 */
557static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes,
558 struct timespec64 *ts1, struct timespec64 *ts2)
559{
560 unsigned int rate, iops, sectors = bytes >> 9;
561 struct timespec64 ts;
562
563 ts = timespec64_sub(*ts2, *ts1);
564
565 rate = mmc_test_rate(bytes, &ts);
566 iops = mmc_test_rate(100, &ts); /* I/O ops per sec x 100 */
567
568 pr_info("%s: Transfer of %u sectors (%u%s KiB) took %llu.%09u "
569 "seconds (%u kB/s, %u KiB/s, %u.%02u IOPS)\n",
570 mmc_hostname(test->card->host), sectors, sectors >> 1,
571 (sectors & 1 ? ".5" : ""), (u64)ts.tv_sec,
572 (u32)ts.tv_nsec, rate / 1000, rate / 1024,
573 iops / 100, iops % 100);
574
575 mmc_test_save_transfer_result(test, 1, sectors, ts, rate, iops);
576}
577
578/*
579 * Print the average transfer rate.
580 */
581static void mmc_test_print_avg_rate(struct mmc_test_card *test, uint64_t bytes,
582 unsigned int count, struct timespec64 *ts1,
583 struct timespec64 *ts2)
584{
585 unsigned int rate, iops, sectors = bytes >> 9;
586 uint64_t tot = bytes * count;
587 struct timespec64 ts;
588
589 ts = timespec64_sub(*ts2, *ts1);
590
591 rate = mmc_test_rate(tot, &ts);
592 iops = mmc_test_rate(count * 100, &ts); /* I/O ops per sec x 100 */
593
594 pr_info("%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
595 "%llu.%09u seconds (%u kB/s, %u KiB/s, "
596 "%u.%02u IOPS, sg_len %d)\n",
597 mmc_hostname(test->card->host), count, sectors, count,
598 sectors >> 1, (sectors & 1 ? ".5" : ""),
599 (u64)ts.tv_sec, (u32)ts.tv_nsec,
600 rate / 1000, rate / 1024, iops / 100, iops % 100,
601 test->area.sg_len);
602
603 mmc_test_save_transfer_result(test, count, sectors, ts, rate, iops);
604}
605
606/*
607 * Return the card size in sectors.
608 */
609static unsigned int mmc_test_capacity(struct mmc_card *card)
610{
611 if (!mmc_card_sd(card) && mmc_card_blockaddr(card))
612 return card->ext_csd.sectors;
613 else
614 return card->csd.capacity << (card->csd.read_blkbits - 9);
615}
616
617/*******************************************************************/
618/* Test preparation and cleanup */
619/*******************************************************************/
620
621/*
622 * Fill the first couple of sectors of the card with known data
623 * so that bad reads/writes can be detected
624 */
625static int __mmc_test_prepare(struct mmc_test_card *test, int write)
626{
627 int ret, i;
628
629 ret = mmc_test_set_blksize(test, 512);
630 if (ret)
631 return ret;
632
633 if (write)
634 memset(test->buffer, 0xDF, 512);
635 else {
636 for (i = 0; i < 512; i++)
637 test->buffer[i] = i;
638 }
639
640 for (i = 0; i < BUFFER_SIZE / 512; i++) {
641 ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
642 if (ret)
643 return ret;
644 }
645
646 return 0;
647}
648
649static int mmc_test_prepare_write(struct mmc_test_card *test)
650{
651 return __mmc_test_prepare(test, 1);
652}
653
654static int mmc_test_prepare_read(struct mmc_test_card *test)
655{
656 return __mmc_test_prepare(test, 0);
657}
658
659static int mmc_test_cleanup(struct mmc_test_card *test)
660{
661 int ret, i;
662
663 ret = mmc_test_set_blksize(test, 512);
664 if (ret)
665 return ret;
666
667 memset(test->buffer, 0, 512);
668
669 for (i = 0; i < BUFFER_SIZE / 512; i++) {
670 ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
671 if (ret)
672 return ret;
673 }
674
675 return 0;
676}
677
678/*******************************************************************/
679/* Test execution helpers */
680/*******************************************************************/
681
682/*
683 * Modifies the mmc_request to perform the "short transfer" tests
684 */
685static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
686 struct mmc_request *mrq, int write)
687{
688 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
689 return;
690
691 if (mrq->data->blocks > 1) {
692 mrq->cmd->opcode = write ?
693 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
694 mrq->stop = NULL;
695 } else {
696 mrq->cmd->opcode = MMC_SEND_STATUS;
697 mrq->cmd->arg = test->card->rca << 16;
698 }
699}
700
701/*
702 * Checks that a normal transfer didn't have any errors
703 */
704static int mmc_test_check_result(struct mmc_test_card *test,
705 struct mmc_request *mrq)
706{
707 int ret;
708
709 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
710 return -EINVAL;
711
712 ret = 0;
713
714 if (mrq->sbc && mrq->sbc->error)
715 ret = mrq->sbc->error;
716 if (!ret && mrq->cmd->error)
717 ret = mrq->cmd->error;
718 if (!ret && mrq->data->error)
719 ret = mrq->data->error;
720 if (!ret && mrq->stop && mrq->stop->error)
721 ret = mrq->stop->error;
722 if (!ret && mrq->data->bytes_xfered !=
723 mrq->data->blocks * mrq->data->blksz)
724 ret = RESULT_FAIL;
725
726 if (ret == -EINVAL)
727 ret = RESULT_UNSUP_HOST;
728
729 return ret;
730}
731
732/*
733 * Checks that a "short transfer" behaved as expected
734 */
735static int mmc_test_check_broken_result(struct mmc_test_card *test,
736 struct mmc_request *mrq)
737{
738 int ret;
739
740 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
741 return -EINVAL;
742
743 ret = 0;
744
745 if (!ret && mrq->cmd->error)
746 ret = mrq->cmd->error;
747 if (!ret && mrq->data->error == 0)
748 ret = RESULT_FAIL;
749 if (!ret && mrq->data->error != -ETIMEDOUT)
750 ret = mrq->data->error;
751 if (!ret && mrq->stop && mrq->stop->error)
752 ret = mrq->stop->error;
753 if (mrq->data->blocks > 1) {
754 if (!ret && mrq->data->bytes_xfered > mrq->data->blksz)
755 ret = RESULT_FAIL;
756 } else {
757 if (!ret && mrq->data->bytes_xfered > 0)
758 ret = RESULT_FAIL;
759 }
760
761 if (ret == -EINVAL)
762 ret = RESULT_UNSUP_HOST;
763
764 return ret;
765}
766
767struct mmc_test_req {
768 struct mmc_request mrq;
769 struct mmc_command sbc;
770 struct mmc_command cmd;
771 struct mmc_command stop;
772 struct mmc_command status;
773 struct mmc_data data;
774};
775
776/*
777 * Tests nonblock transfer with certain parameters
778 */
779static void mmc_test_req_reset(struct mmc_test_req *rq)
780{
781 memset(rq, 0, sizeof(struct mmc_test_req));
782
783 rq->mrq.cmd = &rq->cmd;
784 rq->mrq.data = &rq->data;
785 rq->mrq.stop = &rq->stop;
786}
787
788static struct mmc_test_req *mmc_test_req_alloc(void)
789{
790 struct mmc_test_req *rq = kmalloc(sizeof(*rq), GFP_KERNEL);
791
792 if (rq)
793 mmc_test_req_reset(rq);
794
795 return rq;
796}
797
798static void mmc_test_wait_done(struct mmc_request *mrq)
799{
800 complete(&mrq->completion);
801}
802
803static int mmc_test_start_areq(struct mmc_test_card *test,
804 struct mmc_request *mrq,
805 struct mmc_request *prev_mrq)
806{
807 struct mmc_host *host = test->card->host;
808 int err = 0;
809
810 if (mrq) {
811 init_completion(&mrq->completion);
812 mrq->done = mmc_test_wait_done;
813 mmc_pre_req(host, mrq);
814 }
815
816 if (prev_mrq) {
817 wait_for_completion(&prev_mrq->completion);
818 err = mmc_test_wait_busy(test);
819 if (!err)
820 err = mmc_test_check_result(test, prev_mrq);
821 }
822
823 if (!err && mrq) {
824 err = mmc_start_request(host, mrq);
825 if (err)
826 mmc_retune_release(host);
827 }
828
829 if (prev_mrq)
830 mmc_post_req(host, prev_mrq, 0);
831
832 if (err && mrq)
833 mmc_post_req(host, mrq, err);
834
835 return err;
836}
837
838static int mmc_test_nonblock_transfer(struct mmc_test_card *test,
839 struct scatterlist *sg, unsigned sg_len,
840 unsigned dev_addr, unsigned blocks,
841 unsigned blksz, int write, int count)
842{
843 struct mmc_test_req *rq1, *rq2;
844 struct mmc_request *mrq, *prev_mrq;
845 int i;
846 int ret = RESULT_OK;
847
848 rq1 = mmc_test_req_alloc();
849 rq2 = mmc_test_req_alloc();
850 if (!rq1 || !rq2) {
851 ret = RESULT_FAIL;
852 goto err;
853 }
854
855 mrq = &rq1->mrq;
856 prev_mrq = NULL;
857
858 for (i = 0; i < count; i++) {
859 mmc_test_req_reset(container_of(mrq, struct mmc_test_req, mrq));
860 mmc_test_prepare_mrq(test, mrq, sg, sg_len, dev_addr, blocks,
861 blksz, write);
862 ret = mmc_test_start_areq(test, mrq, prev_mrq);
863 if (ret)
864 goto err;
865
866 if (!prev_mrq)
867 prev_mrq = &rq2->mrq;
868
869 swap(mrq, prev_mrq);
870 dev_addr += blocks;
871 }
872
873 ret = mmc_test_start_areq(test, NULL, prev_mrq);
874err:
875 kfree(rq1);
876 kfree(rq2);
877 return ret;
878}
879
880/*
881 * Tests a basic transfer with certain parameters
882 */
883static int mmc_test_simple_transfer(struct mmc_test_card *test,
884 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
885 unsigned blocks, unsigned blksz, int write)
886{
887 struct mmc_request mrq = {};
888 struct mmc_command cmd = {};
889 struct mmc_command stop = {};
890 struct mmc_data data = {};
891
892 mrq.cmd = &cmd;
893 mrq.data = &data;
894 mrq.stop = &stop;
895
896 mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr,
897 blocks, blksz, write);
898
899 mmc_wait_for_req(test->card->host, &mrq);
900
901 mmc_test_wait_busy(test);
902
903 return mmc_test_check_result(test, &mrq);
904}
905
906/*
907 * Tests a transfer where the card will fail completely or partly
908 */
909static int mmc_test_broken_transfer(struct mmc_test_card *test,
910 unsigned blocks, unsigned blksz, int write)
911{
912 struct mmc_request mrq = {};
913 struct mmc_command cmd = {};
914 struct mmc_command stop = {};
915 struct mmc_data data = {};
916
917 struct scatterlist sg;
918
919 mrq.cmd = &cmd;
920 mrq.data = &data;
921 mrq.stop = &stop;
922
923 sg_init_one(&sg, test->buffer, blocks * blksz);
924
925 mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write);
926 mmc_test_prepare_broken_mrq(test, &mrq, write);
927
928 mmc_wait_for_req(test->card->host, &mrq);
929
930 mmc_test_wait_busy(test);
931
932 return mmc_test_check_broken_result(test, &mrq);
933}
934
935/*
936 * Does a complete transfer test where data is also validated
937 *
938 * Note: mmc_test_prepare() must have been done before this call
939 */
940static int mmc_test_transfer(struct mmc_test_card *test,
941 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
942 unsigned blocks, unsigned blksz, int write)
943{
944 int ret, i;
945 unsigned long flags;
946
947 if (write) {
948 for (i = 0; i < blocks * blksz; i++)
949 test->scratch[i] = i;
950 } else {
951 memset(test->scratch, 0, BUFFER_SIZE);
952 }
953 local_irq_save(flags);
954 sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
955 local_irq_restore(flags);
956
957 ret = mmc_test_set_blksize(test, blksz);
958 if (ret)
959 return ret;
960
961 ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr,
962 blocks, blksz, write);
963 if (ret)
964 return ret;
965
966 if (write) {
967 int sectors;
968
969 ret = mmc_test_set_blksize(test, 512);
970 if (ret)
971 return ret;
972
973 sectors = (blocks * blksz + 511) / 512;
974 if ((sectors * 512) == (blocks * blksz))
975 sectors++;
976
977 if ((sectors * 512) > BUFFER_SIZE)
978 return -EINVAL;
979
980 memset(test->buffer, 0, sectors * 512);
981
982 for (i = 0; i < sectors; i++) {
983 ret = mmc_test_buffer_transfer(test,
984 test->buffer + i * 512,
985 dev_addr + i, 512, 0);
986 if (ret)
987 return ret;
988 }
989
990 for (i = 0; i < blocks * blksz; i++) {
991 if (test->buffer[i] != (u8)i)
992 return RESULT_FAIL;
993 }
994
995 for (; i < sectors * 512; i++) {
996 if (test->buffer[i] != 0xDF)
997 return RESULT_FAIL;
998 }
999 } else {
1000 local_irq_save(flags);
1001 sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
1002 local_irq_restore(flags);
1003 for (i = 0; i < blocks * blksz; i++) {
1004 if (test->scratch[i] != (u8)i)
1005 return RESULT_FAIL;
1006 }
1007 }
1008
1009 return 0;
1010}
1011
1012/*******************************************************************/
1013/* Tests */
1014/*******************************************************************/
1015
1016struct mmc_test_case {
1017 const char *name;
1018
1019 int (*prepare)(struct mmc_test_card *);
1020 int (*run)(struct mmc_test_card *);
1021 int (*cleanup)(struct mmc_test_card *);
1022};
1023
1024static int mmc_test_basic_write(struct mmc_test_card *test)
1025{
1026 int ret;
1027 struct scatterlist sg;
1028
1029 ret = mmc_test_set_blksize(test, 512);
1030 if (ret)
1031 return ret;
1032
1033 sg_init_one(&sg, test->buffer, 512);
1034
1035 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
1036}
1037
1038static int mmc_test_basic_read(struct mmc_test_card *test)
1039{
1040 int ret;
1041 struct scatterlist sg;
1042
1043 ret = mmc_test_set_blksize(test, 512);
1044 if (ret)
1045 return ret;
1046
1047 sg_init_one(&sg, test->buffer, 512);
1048
1049 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
1050}
1051
1052static int mmc_test_verify_write(struct mmc_test_card *test)
1053{
1054 struct scatterlist sg;
1055
1056 sg_init_one(&sg, test->buffer, 512);
1057
1058 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1059}
1060
1061static int mmc_test_verify_read(struct mmc_test_card *test)
1062{
1063 struct scatterlist sg;
1064
1065 sg_init_one(&sg, test->buffer, 512);
1066
1067 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1068}
1069
1070static int mmc_test_multi_write(struct mmc_test_card *test)
1071{
1072 unsigned int size;
1073 struct scatterlist sg;
1074
1075 if (test->card->host->max_blk_count == 1)
1076 return RESULT_UNSUP_HOST;
1077
1078 size = PAGE_SIZE * 2;
1079 size = min(size, test->card->host->max_req_size);
1080 size = min(size, test->card->host->max_seg_size);
1081 size = min(size, test->card->host->max_blk_count * 512);
1082
1083 if (size < 1024)
1084 return RESULT_UNSUP_HOST;
1085
1086 sg_init_one(&sg, test->buffer, size);
1087
1088 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1089}
1090
1091static int mmc_test_multi_read(struct mmc_test_card *test)
1092{
1093 unsigned int size;
1094 struct scatterlist sg;
1095
1096 if (test->card->host->max_blk_count == 1)
1097 return RESULT_UNSUP_HOST;
1098
1099 size = PAGE_SIZE * 2;
1100 size = min(size, test->card->host->max_req_size);
1101 size = min(size, test->card->host->max_seg_size);
1102 size = min(size, test->card->host->max_blk_count * 512);
1103
1104 if (size < 1024)
1105 return RESULT_UNSUP_HOST;
1106
1107 sg_init_one(&sg, test->buffer, size);
1108
1109 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1110}
1111
1112static int mmc_test_pow2_write(struct mmc_test_card *test)
1113{
1114 int ret, i;
1115 struct scatterlist sg;
1116
1117 if (!test->card->csd.write_partial)
1118 return RESULT_UNSUP_CARD;
1119
1120 for (i = 1; i < 512; i <<= 1) {
1121 sg_init_one(&sg, test->buffer, i);
1122 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1123 if (ret)
1124 return ret;
1125 }
1126
1127 return 0;
1128}
1129
1130static int mmc_test_pow2_read(struct mmc_test_card *test)
1131{
1132 int ret, i;
1133 struct scatterlist sg;
1134
1135 if (!test->card->csd.read_partial)
1136 return RESULT_UNSUP_CARD;
1137
1138 for (i = 1; i < 512; i <<= 1) {
1139 sg_init_one(&sg, test->buffer, i);
1140 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1141 if (ret)
1142 return ret;
1143 }
1144
1145 return 0;
1146}
1147
1148static int mmc_test_weird_write(struct mmc_test_card *test)
1149{
1150 int ret, i;
1151 struct scatterlist sg;
1152
1153 if (!test->card->csd.write_partial)
1154 return RESULT_UNSUP_CARD;
1155
1156 for (i = 3; i < 512; i += 7) {
1157 sg_init_one(&sg, test->buffer, i);
1158 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1159 if (ret)
1160 return ret;
1161 }
1162
1163 return 0;
1164}
1165
1166static int mmc_test_weird_read(struct mmc_test_card *test)
1167{
1168 int ret, i;
1169 struct scatterlist sg;
1170
1171 if (!test->card->csd.read_partial)
1172 return RESULT_UNSUP_CARD;
1173
1174 for (i = 3; i < 512; i += 7) {
1175 sg_init_one(&sg, test->buffer, i);
1176 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1177 if (ret)
1178 return ret;
1179 }
1180
1181 return 0;
1182}
1183
1184static int mmc_test_align_write(struct mmc_test_card *test)
1185{
1186 int ret, i;
1187 struct scatterlist sg;
1188
1189 for (i = 1; i < TEST_ALIGN_END; i++) {
1190 sg_init_one(&sg, test->buffer + i, 512);
1191 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1192 if (ret)
1193 return ret;
1194 }
1195
1196 return 0;
1197}
1198
1199static int mmc_test_align_read(struct mmc_test_card *test)
1200{
1201 int ret, i;
1202 struct scatterlist sg;
1203
1204 for (i = 1; i < TEST_ALIGN_END; i++) {
1205 sg_init_one(&sg, test->buffer + i, 512);
1206 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1207 if (ret)
1208 return ret;
1209 }
1210
1211 return 0;
1212}
1213
1214static int mmc_test_align_multi_write(struct mmc_test_card *test)
1215{
1216 int ret, i;
1217 unsigned int size;
1218 struct scatterlist sg;
1219
1220 if (test->card->host->max_blk_count == 1)
1221 return RESULT_UNSUP_HOST;
1222
1223 size = PAGE_SIZE * 2;
1224 size = min(size, test->card->host->max_req_size);
1225 size = min(size, test->card->host->max_seg_size);
1226 size = min(size, test->card->host->max_blk_count * 512);
1227
1228 if (size < 1024)
1229 return RESULT_UNSUP_HOST;
1230
1231 for (i = 1; i < TEST_ALIGN_END; i++) {
1232 sg_init_one(&sg, test->buffer + i, size);
1233 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1234 if (ret)
1235 return ret;
1236 }
1237
1238 return 0;
1239}
1240
1241static int mmc_test_align_multi_read(struct mmc_test_card *test)
1242{
1243 int ret, i;
1244 unsigned int size;
1245 struct scatterlist sg;
1246
1247 if (test->card->host->max_blk_count == 1)
1248 return RESULT_UNSUP_HOST;
1249
1250 size = PAGE_SIZE * 2;
1251 size = min(size, test->card->host->max_req_size);
1252 size = min(size, test->card->host->max_seg_size);
1253 size = min(size, test->card->host->max_blk_count * 512);
1254
1255 if (size < 1024)
1256 return RESULT_UNSUP_HOST;
1257
1258 for (i = 1; i < TEST_ALIGN_END; i++) {
1259 sg_init_one(&sg, test->buffer + i, size);
1260 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1261 if (ret)
1262 return ret;
1263 }
1264
1265 return 0;
1266}
1267
1268static int mmc_test_xfersize_write(struct mmc_test_card *test)
1269{
1270 int ret;
1271
1272 ret = mmc_test_set_blksize(test, 512);
1273 if (ret)
1274 return ret;
1275
1276 return mmc_test_broken_transfer(test, 1, 512, 1);
1277}
1278
1279static int mmc_test_xfersize_read(struct mmc_test_card *test)
1280{
1281 int ret;
1282
1283 ret = mmc_test_set_blksize(test, 512);
1284 if (ret)
1285 return ret;
1286
1287 return mmc_test_broken_transfer(test, 1, 512, 0);
1288}
1289
1290static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
1291{
1292 int ret;
1293
1294 if (test->card->host->max_blk_count == 1)
1295 return RESULT_UNSUP_HOST;
1296
1297 ret = mmc_test_set_blksize(test, 512);
1298 if (ret)
1299 return ret;
1300
1301 return mmc_test_broken_transfer(test, 2, 512, 1);
1302}
1303
1304static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
1305{
1306 int ret;
1307
1308 if (test->card->host->max_blk_count == 1)
1309 return RESULT_UNSUP_HOST;
1310
1311 ret = mmc_test_set_blksize(test, 512);
1312 if (ret)
1313 return ret;
1314
1315 return mmc_test_broken_transfer(test, 2, 512, 0);
1316}
1317
1318#ifdef CONFIG_HIGHMEM
1319
1320static int mmc_test_write_high(struct mmc_test_card *test)
1321{
1322 struct scatterlist sg;
1323
1324 sg_init_table(&sg, 1);
1325 sg_set_page(&sg, test->highmem, 512, 0);
1326
1327 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1328}
1329
1330static int mmc_test_read_high(struct mmc_test_card *test)
1331{
1332 struct scatterlist sg;
1333
1334 sg_init_table(&sg, 1);
1335 sg_set_page(&sg, test->highmem, 512, 0);
1336
1337 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1338}
1339
1340static int mmc_test_multi_write_high(struct mmc_test_card *test)
1341{
1342 unsigned int size;
1343 struct scatterlist sg;
1344
1345 if (test->card->host->max_blk_count == 1)
1346 return RESULT_UNSUP_HOST;
1347
1348 size = PAGE_SIZE * 2;
1349 size = min(size, test->card->host->max_req_size);
1350 size = min(size, test->card->host->max_seg_size);
1351 size = min(size, test->card->host->max_blk_count * 512);
1352
1353 if (size < 1024)
1354 return RESULT_UNSUP_HOST;
1355
1356 sg_init_table(&sg, 1);
1357 sg_set_page(&sg, test->highmem, size, 0);
1358
1359 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1360}
1361
1362static int mmc_test_multi_read_high(struct mmc_test_card *test)
1363{
1364 unsigned int size;
1365 struct scatterlist sg;
1366
1367 if (test->card->host->max_blk_count == 1)
1368 return RESULT_UNSUP_HOST;
1369
1370 size = PAGE_SIZE * 2;
1371 size = min(size, test->card->host->max_req_size);
1372 size = min(size, test->card->host->max_seg_size);
1373 size = min(size, test->card->host->max_blk_count * 512);
1374
1375 if (size < 1024)
1376 return RESULT_UNSUP_HOST;
1377
1378 sg_init_table(&sg, 1);
1379 sg_set_page(&sg, test->highmem, size, 0);
1380
1381 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1382}
1383
1384#else
1385
1386static int mmc_test_no_highmem(struct mmc_test_card *test)
1387{
1388 pr_info("%s: Highmem not configured - test skipped\n",
1389 mmc_hostname(test->card->host));
1390 return 0;
1391}
1392
1393#endif /* CONFIG_HIGHMEM */
1394
1395/*
1396 * Map sz bytes so that it can be transferred.
1397 */
1398static int mmc_test_area_map(struct mmc_test_card *test, unsigned long sz,
1399 int max_scatter, int min_sg_len)
1400{
1401 struct mmc_test_area *t = &test->area;
1402 int err;
1403
1404 t->blocks = sz >> 9;
1405
1406 if (max_scatter) {
1407 err = mmc_test_map_sg_max_scatter(t->mem, sz, t->sg,
1408 t->max_segs, t->max_seg_sz,
1409 &t->sg_len);
1410 } else {
1411 err = mmc_test_map_sg(t->mem, sz, t->sg, 1, t->max_segs,
1412 t->max_seg_sz, &t->sg_len, min_sg_len);
1413 }
1414 if (err)
1415 pr_info("%s: Failed to map sg list\n",
1416 mmc_hostname(test->card->host));
1417 return err;
1418}
1419
1420/*
1421 * Transfer bytes mapped by mmc_test_area_map().
1422 */
1423static int mmc_test_area_transfer(struct mmc_test_card *test,
1424 unsigned int dev_addr, int write)
1425{
1426 struct mmc_test_area *t = &test->area;
1427
1428 return mmc_test_simple_transfer(test, t->sg, t->sg_len, dev_addr,
1429 t->blocks, 512, write);
1430}
1431
1432/*
1433 * Map and transfer bytes for multiple transfers.
1434 */
1435static int mmc_test_area_io_seq(struct mmc_test_card *test, unsigned long sz,
1436 unsigned int dev_addr, int write,
1437 int max_scatter, int timed, int count,
1438 bool nonblock, int min_sg_len)
1439{
1440 struct timespec64 ts1, ts2;
1441 int ret = 0;
1442 int i;
1443 struct mmc_test_area *t = &test->area;
1444
1445 /*
1446 * In the case of a maximally scattered transfer, the maximum transfer
1447 * size is further limited by using PAGE_SIZE segments.
1448 */
1449 if (max_scatter) {
1450 struct mmc_test_area *t = &test->area;
1451 unsigned long max_tfr;
1452
1453 if (t->max_seg_sz >= PAGE_SIZE)
1454 max_tfr = t->max_segs * PAGE_SIZE;
1455 else
1456 max_tfr = t->max_segs * t->max_seg_sz;
1457 if (sz > max_tfr)
1458 sz = max_tfr;
1459 }
1460
1461 ret = mmc_test_area_map(test, sz, max_scatter, min_sg_len);
1462 if (ret)
1463 return ret;
1464
1465 if (timed)
1466 ktime_get_ts64(&ts1);
1467 if (nonblock)
1468 ret = mmc_test_nonblock_transfer(test, t->sg, t->sg_len,
1469 dev_addr, t->blocks, 512, write, count);
1470 else
1471 for (i = 0; i < count && ret == 0; i++) {
1472 ret = mmc_test_area_transfer(test, dev_addr, write);
1473 dev_addr += sz >> 9;
1474 }
1475
1476 if (ret)
1477 return ret;
1478
1479 if (timed)
1480 ktime_get_ts64(&ts2);
1481
1482 if (timed)
1483 mmc_test_print_avg_rate(test, sz, count, &ts1, &ts2);
1484
1485 return 0;
1486}
1487
1488static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
1489 unsigned int dev_addr, int write, int max_scatter,
1490 int timed)
1491{
1492 return mmc_test_area_io_seq(test, sz, dev_addr, write, max_scatter,
1493 timed, 1, false, 0);
1494}
1495
1496/*
1497 * Write the test area entirely.
1498 */
1499static int mmc_test_area_fill(struct mmc_test_card *test)
1500{
1501 struct mmc_test_area *t = &test->area;
1502
1503 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, 1, 0, 0);
1504}
1505
1506/*
1507 * Erase the test area entirely.
1508 */
1509static int mmc_test_area_erase(struct mmc_test_card *test)
1510{
1511 struct mmc_test_area *t = &test->area;
1512
1513 if (!mmc_can_erase(test->card))
1514 return 0;
1515
1516 return mmc_erase(test->card, t->dev_addr, t->max_sz >> 9,
1517 MMC_ERASE_ARG);
1518}
1519
1520/*
1521 * Cleanup struct mmc_test_area.
1522 */
1523static int mmc_test_area_cleanup(struct mmc_test_card *test)
1524{
1525 struct mmc_test_area *t = &test->area;
1526
1527 kfree(t->sg);
1528 mmc_test_free_mem(t->mem);
1529
1530 return 0;
1531}
1532
1533/*
1534 * Initialize an area for testing large transfers. The test area is set to the
1535 * middle of the card because cards may have different characteristics at the
1536 * front (for FAT file system optimization). Optionally, the area is erased
1537 * (if the card supports it) which may improve write performance. Optionally,
1538 * the area is filled with data for subsequent read tests.
1539 */
1540static int mmc_test_area_init(struct mmc_test_card *test, int erase, int fill)
1541{
1542 struct mmc_test_area *t = &test->area;
1543 unsigned long min_sz = 64 * 1024, sz;
1544 int ret;
1545
1546 ret = mmc_test_set_blksize(test, 512);
1547 if (ret)
1548 return ret;
1549
1550 /* Make the test area size about 4MiB */
1551 sz = (unsigned long)test->card->pref_erase << 9;
1552 t->max_sz = sz;
1553 while (t->max_sz < 4 * 1024 * 1024)
1554 t->max_sz += sz;
1555 while (t->max_sz > TEST_AREA_MAX_SIZE && t->max_sz > sz)
1556 t->max_sz -= sz;
1557
1558 t->max_segs = test->card->host->max_segs;
1559 t->max_seg_sz = test->card->host->max_seg_size;
1560 t->max_seg_sz -= t->max_seg_sz % 512;
1561
1562 t->max_tfr = t->max_sz;
1563 if (t->max_tfr >> 9 > test->card->host->max_blk_count)
1564 t->max_tfr = test->card->host->max_blk_count << 9;
1565 if (t->max_tfr > test->card->host->max_req_size)
1566 t->max_tfr = test->card->host->max_req_size;
1567 if (t->max_tfr / t->max_seg_sz > t->max_segs)
1568 t->max_tfr = t->max_segs * t->max_seg_sz;
1569
1570 /*
1571 * Try to allocate enough memory for a max. sized transfer. Less is OK
1572 * because the same memory can be mapped into the scatterlist more than
1573 * once. Also, take into account the limits imposed on scatterlist
1574 * segments by the host driver.
1575 */
1576 t->mem = mmc_test_alloc_mem(min_sz, t->max_tfr, t->max_segs,
1577 t->max_seg_sz);
1578 if (!t->mem)
1579 return -ENOMEM;
1580
1581 t->sg = kmalloc_array(t->max_segs, sizeof(*t->sg), GFP_KERNEL);
1582 if (!t->sg) {
1583 ret = -ENOMEM;
1584 goto out_free;
1585 }
1586
1587 t->dev_addr = mmc_test_capacity(test->card) / 2;
1588 t->dev_addr -= t->dev_addr % (t->max_sz >> 9);
1589
1590 if (erase) {
1591 ret = mmc_test_area_erase(test);
1592 if (ret)
1593 goto out_free;
1594 }
1595
1596 if (fill) {
1597 ret = mmc_test_area_fill(test);
1598 if (ret)
1599 goto out_free;
1600 }
1601
1602 return 0;
1603
1604out_free:
1605 mmc_test_area_cleanup(test);
1606 return ret;
1607}
1608
1609/*
1610 * Prepare for large transfers. Do not erase the test area.
1611 */
1612static int mmc_test_area_prepare(struct mmc_test_card *test)
1613{
1614 return mmc_test_area_init(test, 0, 0);
1615}
1616
1617/*
1618 * Prepare for large transfers. Do erase the test area.
1619 */
1620static int mmc_test_area_prepare_erase(struct mmc_test_card *test)
1621{
1622 return mmc_test_area_init(test, 1, 0);
1623}
1624
1625/*
1626 * Prepare for large transfers. Erase and fill the test area.
1627 */
1628static int mmc_test_area_prepare_fill(struct mmc_test_card *test)
1629{
1630 return mmc_test_area_init(test, 1, 1);
1631}
1632
1633/*
1634 * Test best-case performance. Best-case performance is expected from
1635 * a single large transfer.
1636 *
1637 * An additional option (max_scatter) allows the measurement of the same
1638 * transfer but with no contiguous pages in the scatter list. This tests
1639 * the efficiency of DMA to handle scattered pages.
1640 */
1641static int mmc_test_best_performance(struct mmc_test_card *test, int write,
1642 int max_scatter)
1643{
1644 struct mmc_test_area *t = &test->area;
1645
1646 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, write,
1647 max_scatter, 1);
1648}
1649
1650/*
1651 * Best-case read performance.
1652 */
1653static int mmc_test_best_read_performance(struct mmc_test_card *test)
1654{
1655 return mmc_test_best_performance(test, 0, 0);
1656}
1657
1658/*
1659 * Best-case write performance.
1660 */
1661static int mmc_test_best_write_performance(struct mmc_test_card *test)
1662{
1663 return mmc_test_best_performance(test, 1, 0);
1664}
1665
1666/*
1667 * Best-case read performance into scattered pages.
1668 */
1669static int mmc_test_best_read_perf_max_scatter(struct mmc_test_card *test)
1670{
1671 return mmc_test_best_performance(test, 0, 1);
1672}
1673
1674/*
1675 * Best-case write performance from scattered pages.
1676 */
1677static int mmc_test_best_write_perf_max_scatter(struct mmc_test_card *test)
1678{
1679 return mmc_test_best_performance(test, 1, 1);
1680}
1681
1682/*
1683 * Single read performance by transfer size.
1684 */
1685static int mmc_test_profile_read_perf(struct mmc_test_card *test)
1686{
1687 struct mmc_test_area *t = &test->area;
1688 unsigned long sz;
1689 unsigned int dev_addr;
1690 int ret;
1691
1692 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1693 dev_addr = t->dev_addr + (sz >> 9);
1694 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1695 if (ret)
1696 return ret;
1697 }
1698 sz = t->max_tfr;
1699 dev_addr = t->dev_addr;
1700 return mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1701}
1702
1703/*
1704 * Single write performance by transfer size.
1705 */
1706static int mmc_test_profile_write_perf(struct mmc_test_card *test)
1707{
1708 struct mmc_test_area *t = &test->area;
1709 unsigned long sz;
1710 unsigned int dev_addr;
1711 int ret;
1712
1713 ret = mmc_test_area_erase(test);
1714 if (ret)
1715 return ret;
1716 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1717 dev_addr = t->dev_addr + (sz >> 9);
1718 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1719 if (ret)
1720 return ret;
1721 }
1722 ret = mmc_test_area_erase(test);
1723 if (ret)
1724 return ret;
1725 sz = t->max_tfr;
1726 dev_addr = t->dev_addr;
1727 return mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1728}
1729
1730/*
1731 * Single trim performance by transfer size.
1732 */
1733static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
1734{
1735 struct mmc_test_area *t = &test->area;
1736 unsigned long sz;
1737 unsigned int dev_addr;
1738 struct timespec64 ts1, ts2;
1739 int ret;
1740
1741 if (!mmc_can_trim(test->card))
1742 return RESULT_UNSUP_CARD;
1743
1744 if (!mmc_can_erase(test->card))
1745 return RESULT_UNSUP_HOST;
1746
1747 for (sz = 512; sz < t->max_sz; sz <<= 1) {
1748 dev_addr = t->dev_addr + (sz >> 9);
1749 ktime_get_ts64(&ts1);
1750 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1751 if (ret)
1752 return ret;
1753 ktime_get_ts64(&ts2);
1754 mmc_test_print_rate(test, sz, &ts1, &ts2);
1755 }
1756 dev_addr = t->dev_addr;
1757 ktime_get_ts64(&ts1);
1758 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1759 if (ret)
1760 return ret;
1761 ktime_get_ts64(&ts2);
1762 mmc_test_print_rate(test, sz, &ts1, &ts2);
1763 return 0;
1764}
1765
1766static int mmc_test_seq_read_perf(struct mmc_test_card *test, unsigned long sz)
1767{
1768 struct mmc_test_area *t = &test->area;
1769 unsigned int dev_addr, i, cnt;
1770 struct timespec64 ts1, ts2;
1771 int ret;
1772
1773 cnt = t->max_sz / sz;
1774 dev_addr = t->dev_addr;
1775 ktime_get_ts64(&ts1);
1776 for (i = 0; i < cnt; i++) {
1777 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 0);
1778 if (ret)
1779 return ret;
1780 dev_addr += (sz >> 9);
1781 }
1782 ktime_get_ts64(&ts2);
1783 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1784 return 0;
1785}
1786
1787/*
1788 * Consecutive read performance by transfer size.
1789 */
1790static int mmc_test_profile_seq_read_perf(struct mmc_test_card *test)
1791{
1792 struct mmc_test_area *t = &test->area;
1793 unsigned long sz;
1794 int ret;
1795
1796 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1797 ret = mmc_test_seq_read_perf(test, sz);
1798 if (ret)
1799 return ret;
1800 }
1801 sz = t->max_tfr;
1802 return mmc_test_seq_read_perf(test, sz);
1803}
1804
1805static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
1806{
1807 struct mmc_test_area *t = &test->area;
1808 unsigned int dev_addr, i, cnt;
1809 struct timespec64 ts1, ts2;
1810 int ret;
1811
1812 ret = mmc_test_area_erase(test);
1813 if (ret)
1814 return ret;
1815 cnt = t->max_sz / sz;
1816 dev_addr = t->dev_addr;
1817 ktime_get_ts64(&ts1);
1818 for (i = 0; i < cnt; i++) {
1819 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 0);
1820 if (ret)
1821 return ret;
1822 dev_addr += (sz >> 9);
1823 }
1824 ktime_get_ts64(&ts2);
1825 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1826 return 0;
1827}
1828
1829/*
1830 * Consecutive write performance by transfer size.
1831 */
1832static int mmc_test_profile_seq_write_perf(struct mmc_test_card *test)
1833{
1834 struct mmc_test_area *t = &test->area;
1835 unsigned long sz;
1836 int ret;
1837
1838 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1839 ret = mmc_test_seq_write_perf(test, sz);
1840 if (ret)
1841 return ret;
1842 }
1843 sz = t->max_tfr;
1844 return mmc_test_seq_write_perf(test, sz);
1845}
1846
1847/*
1848 * Consecutive trim performance by transfer size.
1849 */
1850static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
1851{
1852 struct mmc_test_area *t = &test->area;
1853 unsigned long sz;
1854 unsigned int dev_addr, i, cnt;
1855 struct timespec64 ts1, ts2;
1856 int ret;
1857
1858 if (!mmc_can_trim(test->card))
1859 return RESULT_UNSUP_CARD;
1860
1861 if (!mmc_can_erase(test->card))
1862 return RESULT_UNSUP_HOST;
1863
1864 for (sz = 512; sz <= t->max_sz; sz <<= 1) {
1865 ret = mmc_test_area_erase(test);
1866 if (ret)
1867 return ret;
1868 ret = mmc_test_area_fill(test);
1869 if (ret)
1870 return ret;
1871 cnt = t->max_sz / sz;
1872 dev_addr = t->dev_addr;
1873 ktime_get_ts64(&ts1);
1874 for (i = 0; i < cnt; i++) {
1875 ret = mmc_erase(test->card, dev_addr, sz >> 9,
1876 MMC_TRIM_ARG);
1877 if (ret)
1878 return ret;
1879 dev_addr += (sz >> 9);
1880 }
1881 ktime_get_ts64(&ts2);
1882 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1883 }
1884 return 0;
1885}
1886
1887static unsigned int rnd_next = 1;
1888
1889static unsigned int mmc_test_rnd_num(unsigned int rnd_cnt)
1890{
1891 uint64_t r;
1892
1893 rnd_next = rnd_next * 1103515245 + 12345;
1894 r = (rnd_next >> 16) & 0x7fff;
1895 return (r * rnd_cnt) >> 15;
1896}
1897
1898static int mmc_test_rnd_perf(struct mmc_test_card *test, int write, int print,
1899 unsigned long sz)
1900{
1901 unsigned int dev_addr, cnt, rnd_addr, range1, range2, last_ea = 0, ea;
1902 unsigned int ssz;
1903 struct timespec64 ts1, ts2, ts;
1904 int ret;
1905
1906 ssz = sz >> 9;
1907
1908 rnd_addr = mmc_test_capacity(test->card) / 4;
1909 range1 = rnd_addr / test->card->pref_erase;
1910 range2 = range1 / ssz;
1911
1912 ktime_get_ts64(&ts1);
1913 for (cnt = 0; cnt < UINT_MAX; cnt++) {
1914 ktime_get_ts64(&ts2);
1915 ts = timespec64_sub(ts2, ts1);
1916 if (ts.tv_sec >= 10)
1917 break;
1918 ea = mmc_test_rnd_num(range1);
1919 if (ea == last_ea)
1920 ea -= 1;
1921 last_ea = ea;
1922 dev_addr = rnd_addr + test->card->pref_erase * ea +
1923 ssz * mmc_test_rnd_num(range2);
1924 ret = mmc_test_area_io(test, sz, dev_addr, write, 0, 0);
1925 if (ret)
1926 return ret;
1927 }
1928 if (print)
1929 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1930 return 0;
1931}
1932
1933static int mmc_test_random_perf(struct mmc_test_card *test, int write)
1934{
1935 struct mmc_test_area *t = &test->area;
1936 unsigned int next;
1937 unsigned long sz;
1938 int ret;
1939
1940 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1941 /*
1942 * When writing, try to get more consistent results by running
1943 * the test twice with exactly the same I/O but outputting the
1944 * results only for the 2nd run.
1945 */
1946 if (write) {
1947 next = rnd_next;
1948 ret = mmc_test_rnd_perf(test, write, 0, sz);
1949 if (ret)
1950 return ret;
1951 rnd_next = next;
1952 }
1953 ret = mmc_test_rnd_perf(test, write, 1, sz);
1954 if (ret)
1955 return ret;
1956 }
1957 sz = t->max_tfr;
1958 if (write) {
1959 next = rnd_next;
1960 ret = mmc_test_rnd_perf(test, write, 0, sz);
1961 if (ret)
1962 return ret;
1963 rnd_next = next;
1964 }
1965 return mmc_test_rnd_perf(test, write, 1, sz);
1966}
1967
1968/*
1969 * Random read performance by transfer size.
1970 */
1971static int mmc_test_random_read_perf(struct mmc_test_card *test)
1972{
1973 return mmc_test_random_perf(test, 0);
1974}
1975
1976/*
1977 * Random write performance by transfer size.
1978 */
1979static int mmc_test_random_write_perf(struct mmc_test_card *test)
1980{
1981 return mmc_test_random_perf(test, 1);
1982}
1983
1984static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
1985 unsigned int tot_sz, int max_scatter)
1986{
1987 struct mmc_test_area *t = &test->area;
1988 unsigned int dev_addr, i, cnt, sz, ssz;
1989 struct timespec64 ts1, ts2;
1990 int ret;
1991
1992 sz = t->max_tfr;
1993
1994 /*
1995 * In the case of a maximally scattered transfer, the maximum transfer
1996 * size is further limited by using PAGE_SIZE segments.
1997 */
1998 if (max_scatter) {
1999 unsigned long max_tfr;
2000
2001 if (t->max_seg_sz >= PAGE_SIZE)
2002 max_tfr = t->max_segs * PAGE_SIZE;
2003 else
2004 max_tfr = t->max_segs * t->max_seg_sz;
2005 if (sz > max_tfr)
2006 sz = max_tfr;
2007 }
2008
2009 ssz = sz >> 9;
2010 dev_addr = mmc_test_capacity(test->card) / 4;
2011 if (tot_sz > dev_addr << 9)
2012 tot_sz = dev_addr << 9;
2013 cnt = tot_sz / sz;
2014 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2015
2016 ktime_get_ts64(&ts1);
2017 for (i = 0; i < cnt; i++) {
2018 ret = mmc_test_area_io(test, sz, dev_addr, write,
2019 max_scatter, 0);
2020 if (ret)
2021 return ret;
2022 dev_addr += ssz;
2023 }
2024 ktime_get_ts64(&ts2);
2025
2026 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
2027
2028 return 0;
2029}
2030
2031static int mmc_test_large_seq_perf(struct mmc_test_card *test, int write)
2032{
2033 int ret, i;
2034
2035 for (i = 0; i < 10; i++) {
2036 ret = mmc_test_seq_perf(test, write, 10 * 1024 * 1024, 1);
2037 if (ret)
2038 return ret;
2039 }
2040 for (i = 0; i < 5; i++) {
2041 ret = mmc_test_seq_perf(test, write, 100 * 1024 * 1024, 1);
2042 if (ret)
2043 return ret;
2044 }
2045 for (i = 0; i < 3; i++) {
2046 ret = mmc_test_seq_perf(test, write, 1000 * 1024 * 1024, 1);
2047 if (ret)
2048 return ret;
2049 }
2050
2051 return ret;
2052}
2053
2054/*
2055 * Large sequential read performance.
2056 */
2057static int mmc_test_large_seq_read_perf(struct mmc_test_card *test)
2058{
2059 return mmc_test_large_seq_perf(test, 0);
2060}
2061
2062/*
2063 * Large sequential write performance.
2064 */
2065static int mmc_test_large_seq_write_perf(struct mmc_test_card *test)
2066{
2067 return mmc_test_large_seq_perf(test, 1);
2068}
2069
2070static int mmc_test_rw_multiple(struct mmc_test_card *test,
2071 struct mmc_test_multiple_rw *tdata,
2072 unsigned int reqsize, unsigned int size,
2073 int min_sg_len)
2074{
2075 unsigned int dev_addr;
2076 struct mmc_test_area *t = &test->area;
2077 int ret = 0;
2078
2079 /* Set up test area */
2080 if (size > mmc_test_capacity(test->card) / 2 * 512)
2081 size = mmc_test_capacity(test->card) / 2 * 512;
2082 if (reqsize > t->max_tfr)
2083 reqsize = t->max_tfr;
2084 dev_addr = mmc_test_capacity(test->card) / 4;
2085 if ((dev_addr & 0xffff0000))
2086 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2087 else
2088 dev_addr &= 0xfffff800; /* Round to 1MiB boundary */
2089 if (!dev_addr)
2090 goto err;
2091
2092 if (reqsize > size)
2093 return 0;
2094
2095 /* prepare test area */
2096 if (mmc_can_erase(test->card) &&
2097 tdata->prepare & MMC_TEST_PREP_ERASE) {
2098 ret = mmc_erase(test->card, dev_addr,
2099 size / 512, MMC_SECURE_ERASE_ARG);
2100 if (ret)
2101 ret = mmc_erase(test->card, dev_addr,
2102 size / 512, MMC_ERASE_ARG);
2103 if (ret)
2104 goto err;
2105 }
2106
2107 /* Run test */
2108 ret = mmc_test_area_io_seq(test, reqsize, dev_addr,
2109 tdata->do_write, 0, 1, size / reqsize,
2110 tdata->do_nonblock_req, min_sg_len);
2111 if (ret)
2112 goto err;
2113
2114 return ret;
2115 err:
2116 pr_info("[%s] error\n", __func__);
2117 return ret;
2118}
2119
2120static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
2121 struct mmc_test_multiple_rw *rw)
2122{
2123 int ret = 0;
2124 int i;
2125 void *pre_req = test->card->host->ops->pre_req;
2126 void *post_req = test->card->host->ops->post_req;
2127
2128 if (rw->do_nonblock_req &&
2129 ((!pre_req && post_req) || (pre_req && !post_req))) {
2130 pr_info("error: only one of pre/post is defined\n");
2131 return -EINVAL;
2132 }
2133
2134 for (i = 0 ; i < rw->len && ret == 0; i++) {
2135 ret = mmc_test_rw_multiple(test, rw, rw->bs[i], rw->size, 0);
2136 if (ret)
2137 break;
2138 }
2139 return ret;
2140}
2141
2142static int mmc_test_rw_multiple_sg_len(struct mmc_test_card *test,
2143 struct mmc_test_multiple_rw *rw)
2144{
2145 int ret = 0;
2146 int i;
2147
2148 for (i = 0 ; i < rw->len && ret == 0; i++) {
2149 ret = mmc_test_rw_multiple(test, rw, 512 * 1024, rw->size,
2150 rw->sg_len[i]);
2151 if (ret)
2152 break;
2153 }
2154 return ret;
2155}
2156
2157/*
2158 * Multiple blocking write 4k to 4 MB chunks
2159 */
2160static int mmc_test_profile_mult_write_blocking_perf(struct mmc_test_card *test)
2161{
2162 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2163 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2164 struct mmc_test_multiple_rw test_data = {
2165 .bs = bs,
2166 .size = TEST_AREA_MAX_SIZE,
2167 .len = ARRAY_SIZE(bs),
2168 .do_write = true,
2169 .do_nonblock_req = false,
2170 .prepare = MMC_TEST_PREP_ERASE,
2171 };
2172
2173 return mmc_test_rw_multiple_size(test, &test_data);
2174};
2175
2176/*
2177 * Multiple non-blocking write 4k to 4 MB chunks
2178 */
2179static int mmc_test_profile_mult_write_nonblock_perf(struct mmc_test_card *test)
2180{
2181 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2182 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2183 struct mmc_test_multiple_rw test_data = {
2184 .bs = bs,
2185 .size = TEST_AREA_MAX_SIZE,
2186 .len = ARRAY_SIZE(bs),
2187 .do_write = true,
2188 .do_nonblock_req = true,
2189 .prepare = MMC_TEST_PREP_ERASE,
2190 };
2191
2192 return mmc_test_rw_multiple_size(test, &test_data);
2193}
2194
2195/*
2196 * Multiple blocking read 4k to 4 MB chunks
2197 */
2198static int mmc_test_profile_mult_read_blocking_perf(struct mmc_test_card *test)
2199{
2200 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2201 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2202 struct mmc_test_multiple_rw test_data = {
2203 .bs = bs,
2204 .size = TEST_AREA_MAX_SIZE,
2205 .len = ARRAY_SIZE(bs),
2206 .do_write = false,
2207 .do_nonblock_req = false,
2208 .prepare = MMC_TEST_PREP_NONE,
2209 };
2210
2211 return mmc_test_rw_multiple_size(test, &test_data);
2212}
2213
2214/*
2215 * Multiple non-blocking read 4k to 4 MB chunks
2216 */
2217static int mmc_test_profile_mult_read_nonblock_perf(struct mmc_test_card *test)
2218{
2219 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2220 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2221 struct mmc_test_multiple_rw test_data = {
2222 .bs = bs,
2223 .size = TEST_AREA_MAX_SIZE,
2224 .len = ARRAY_SIZE(bs),
2225 .do_write = false,
2226 .do_nonblock_req = true,
2227 .prepare = MMC_TEST_PREP_NONE,
2228 };
2229
2230 return mmc_test_rw_multiple_size(test, &test_data);
2231}
2232
2233/*
2234 * Multiple blocking write 1 to 512 sg elements
2235 */
2236static int mmc_test_profile_sglen_wr_blocking_perf(struct mmc_test_card *test)
2237{
2238 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2239 1 << 7, 1 << 8, 1 << 9};
2240 struct mmc_test_multiple_rw test_data = {
2241 .sg_len = sg_len,
2242 .size = TEST_AREA_MAX_SIZE,
2243 .len = ARRAY_SIZE(sg_len),
2244 .do_write = true,
2245 .do_nonblock_req = false,
2246 .prepare = MMC_TEST_PREP_ERASE,
2247 };
2248
2249 return mmc_test_rw_multiple_sg_len(test, &test_data);
2250};
2251
2252/*
2253 * Multiple non-blocking write 1 to 512 sg elements
2254 */
2255static int mmc_test_profile_sglen_wr_nonblock_perf(struct mmc_test_card *test)
2256{
2257 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2258 1 << 7, 1 << 8, 1 << 9};
2259 struct mmc_test_multiple_rw test_data = {
2260 .sg_len = sg_len,
2261 .size = TEST_AREA_MAX_SIZE,
2262 .len = ARRAY_SIZE(sg_len),
2263 .do_write = true,
2264 .do_nonblock_req = true,
2265 .prepare = MMC_TEST_PREP_ERASE,
2266 };
2267
2268 return mmc_test_rw_multiple_sg_len(test, &test_data);
2269}
2270
2271/*
2272 * Multiple blocking read 1 to 512 sg elements
2273 */
2274static int mmc_test_profile_sglen_r_blocking_perf(struct mmc_test_card *test)
2275{
2276 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2277 1 << 7, 1 << 8, 1 << 9};
2278 struct mmc_test_multiple_rw test_data = {
2279 .sg_len = sg_len,
2280 .size = TEST_AREA_MAX_SIZE,
2281 .len = ARRAY_SIZE(sg_len),
2282 .do_write = false,
2283 .do_nonblock_req = false,
2284 .prepare = MMC_TEST_PREP_NONE,
2285 };
2286
2287 return mmc_test_rw_multiple_sg_len(test, &test_data);
2288}
2289
2290/*
2291 * Multiple non-blocking read 1 to 512 sg elements
2292 */
2293static int mmc_test_profile_sglen_r_nonblock_perf(struct mmc_test_card *test)
2294{
2295 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2296 1 << 7, 1 << 8, 1 << 9};
2297 struct mmc_test_multiple_rw test_data = {
2298 .sg_len = sg_len,
2299 .size = TEST_AREA_MAX_SIZE,
2300 .len = ARRAY_SIZE(sg_len),
2301 .do_write = false,
2302 .do_nonblock_req = true,
2303 .prepare = MMC_TEST_PREP_NONE,
2304 };
2305
2306 return mmc_test_rw_multiple_sg_len(test, &test_data);
2307}
2308
2309/*
2310 * eMMC hardware reset.
2311 */
2312static int mmc_test_reset(struct mmc_test_card *test)
2313{
2314 struct mmc_card *card = test->card;
2315 struct mmc_host *host = card->host;
2316 int err;
2317
2318 err = mmc_hw_reset(host);
2319 if (!err) {
2320 /*
2321 * Reset will re-enable the card's command queue, but tests
2322 * expect it to be disabled.
2323 */
2324 if (card->ext_csd.cmdq_en)
2325 mmc_cmdq_disable(card);
2326 return RESULT_OK;
2327 } else if (err == -EOPNOTSUPP) {
2328 return RESULT_UNSUP_HOST;
2329 }
2330
2331 return RESULT_FAIL;
2332}
2333
2334static int mmc_test_send_status(struct mmc_test_card *test,
2335 struct mmc_command *cmd)
2336{
2337 memset(cmd, 0, sizeof(*cmd));
2338
2339 cmd->opcode = MMC_SEND_STATUS;
2340 if (!mmc_host_is_spi(test->card->host))
2341 cmd->arg = test->card->rca << 16;
2342 cmd->flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
2343
2344 return mmc_wait_for_cmd(test->card->host, cmd, 0);
2345}
2346
2347static int mmc_test_ongoing_transfer(struct mmc_test_card *test,
2348 unsigned int dev_addr, int use_sbc,
2349 int repeat_cmd, int write, int use_areq)
2350{
2351 struct mmc_test_req *rq = mmc_test_req_alloc();
2352 struct mmc_host *host = test->card->host;
2353 struct mmc_test_area *t = &test->area;
2354 struct mmc_request *mrq;
2355 unsigned long timeout;
2356 bool expired = false;
2357 int ret = 0, cmd_ret;
2358 u32 status = 0;
2359 int count = 0;
2360
2361 if (!rq)
2362 return -ENOMEM;
2363
2364 mrq = &rq->mrq;
2365 if (use_sbc)
2366 mrq->sbc = &rq->sbc;
2367 mrq->cap_cmd_during_tfr = true;
2368
2369 mmc_test_prepare_mrq(test, mrq, t->sg, t->sg_len, dev_addr, t->blocks,
2370 512, write);
2371
2372 if (use_sbc && t->blocks > 1 && !mrq->sbc) {
2373 ret = mmc_host_cmd23(host) ?
2374 RESULT_UNSUP_CARD :
2375 RESULT_UNSUP_HOST;
2376 goto out_free;
2377 }
2378
2379 /* Start ongoing data request */
2380 if (use_areq) {
2381 ret = mmc_test_start_areq(test, mrq, NULL);
2382 if (ret)
2383 goto out_free;
2384 } else {
2385 mmc_wait_for_req(host, mrq);
2386 }
2387
2388 timeout = jiffies + msecs_to_jiffies(3000);
2389 do {
2390 count += 1;
2391
2392 /* Send status command while data transfer in progress */
2393 cmd_ret = mmc_test_send_status(test, &rq->status);
2394 if (cmd_ret)
2395 break;
2396
2397 status = rq->status.resp[0];
2398 if (status & R1_ERROR) {
2399 cmd_ret = -EIO;
2400 break;
2401 }
2402
2403 if (mmc_is_req_done(host, mrq))
2404 break;
2405
2406 expired = time_after(jiffies, timeout);
2407 if (expired) {
2408 pr_info("%s: timeout waiting for Tran state status %#x\n",
2409 mmc_hostname(host), status);
2410 cmd_ret = -ETIMEDOUT;
2411 break;
2412 }
2413 } while (repeat_cmd && R1_CURRENT_STATE(status) != R1_STATE_TRAN);
2414
2415 /* Wait for data request to complete */
2416 if (use_areq) {
2417 ret = mmc_test_start_areq(test, NULL, mrq);
2418 } else {
2419 mmc_wait_for_req_done(test->card->host, mrq);
2420 }
2421
2422 /*
2423 * For cap_cmd_during_tfr request, upper layer must send stop if
2424 * required.
2425 */
2426 if (mrq->data->stop && (mrq->data->error || !mrq->sbc)) {
2427 if (ret)
2428 mmc_wait_for_cmd(host, mrq->data->stop, 0);
2429 else
2430 ret = mmc_wait_for_cmd(host, mrq->data->stop, 0);
2431 }
2432
2433 if (ret)
2434 goto out_free;
2435
2436 if (cmd_ret) {
2437 pr_info("%s: Send Status failed: status %#x, error %d\n",
2438 mmc_hostname(test->card->host), status, cmd_ret);
2439 }
2440
2441 ret = mmc_test_check_result(test, mrq);
2442 if (ret)
2443 goto out_free;
2444
2445 ret = mmc_test_wait_busy(test);
2446 if (ret)
2447 goto out_free;
2448
2449 if (repeat_cmd && (t->blocks + 1) << 9 > t->max_tfr)
2450 pr_info("%s: %d commands completed during transfer of %u blocks\n",
2451 mmc_hostname(test->card->host), count, t->blocks);
2452
2453 if (cmd_ret)
2454 ret = cmd_ret;
2455out_free:
2456 kfree(rq);
2457
2458 return ret;
2459}
2460
2461static int __mmc_test_cmds_during_tfr(struct mmc_test_card *test,
2462 unsigned long sz, int use_sbc, int write,
2463 int use_areq)
2464{
2465 struct mmc_test_area *t = &test->area;
2466 int ret;
2467
2468 if (!(test->card->host->caps & MMC_CAP_CMD_DURING_TFR))
2469 return RESULT_UNSUP_HOST;
2470
2471 ret = mmc_test_area_map(test, sz, 0, 0);
2472 if (ret)
2473 return ret;
2474
2475 ret = mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 0, write,
2476 use_areq);
2477 if (ret)
2478 return ret;
2479
2480 return mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 1, write,
2481 use_areq);
2482}
2483
2484static int mmc_test_cmds_during_tfr(struct mmc_test_card *test, int use_sbc,
2485 int write, int use_areq)
2486{
2487 struct mmc_test_area *t = &test->area;
2488 unsigned long sz;
2489 int ret;
2490
2491 for (sz = 512; sz <= t->max_tfr; sz += 512) {
2492 ret = __mmc_test_cmds_during_tfr(test, sz, use_sbc, write,
2493 use_areq);
2494 if (ret)
2495 return ret;
2496 }
2497 return 0;
2498}
2499
2500/*
2501 * Commands during read - no Set Block Count (CMD23).
2502 */
2503static int mmc_test_cmds_during_read(struct mmc_test_card *test)
2504{
2505 return mmc_test_cmds_during_tfr(test, 0, 0, 0);
2506}
2507
2508/*
2509 * Commands during write - no Set Block Count (CMD23).
2510 */
2511static int mmc_test_cmds_during_write(struct mmc_test_card *test)
2512{
2513 return mmc_test_cmds_during_tfr(test, 0, 1, 0);
2514}
2515
2516/*
2517 * Commands during read - use Set Block Count (CMD23).
2518 */
2519static int mmc_test_cmds_during_read_cmd23(struct mmc_test_card *test)
2520{
2521 return mmc_test_cmds_during_tfr(test, 1, 0, 0);
2522}
2523
2524/*
2525 * Commands during write - use Set Block Count (CMD23).
2526 */
2527static int mmc_test_cmds_during_write_cmd23(struct mmc_test_card *test)
2528{
2529 return mmc_test_cmds_during_tfr(test, 1, 1, 0);
2530}
2531
2532/*
2533 * Commands during non-blocking read - use Set Block Count (CMD23).
2534 */
2535static int mmc_test_cmds_during_read_cmd23_nonblock(struct mmc_test_card *test)
2536{
2537 return mmc_test_cmds_during_tfr(test, 1, 0, 1);
2538}
2539
2540/*
2541 * Commands during non-blocking write - use Set Block Count (CMD23).
2542 */
2543static int mmc_test_cmds_during_write_cmd23_nonblock(struct mmc_test_card *test)
2544{
2545 return mmc_test_cmds_during_tfr(test, 1, 1, 1);
2546}
2547
2548static const struct mmc_test_case mmc_test_cases[] = {
2549 {
2550 .name = "Basic write (no data verification)",
2551 .run = mmc_test_basic_write,
2552 },
2553
2554 {
2555 .name = "Basic read (no data verification)",
2556 .run = mmc_test_basic_read,
2557 },
2558
2559 {
2560 .name = "Basic write (with data verification)",
2561 .prepare = mmc_test_prepare_write,
2562 .run = mmc_test_verify_write,
2563 .cleanup = mmc_test_cleanup,
2564 },
2565
2566 {
2567 .name = "Basic read (with data verification)",
2568 .prepare = mmc_test_prepare_read,
2569 .run = mmc_test_verify_read,
2570 .cleanup = mmc_test_cleanup,
2571 },
2572
2573 {
2574 .name = "Multi-block write",
2575 .prepare = mmc_test_prepare_write,
2576 .run = mmc_test_multi_write,
2577 .cleanup = mmc_test_cleanup,
2578 },
2579
2580 {
2581 .name = "Multi-block read",
2582 .prepare = mmc_test_prepare_read,
2583 .run = mmc_test_multi_read,
2584 .cleanup = mmc_test_cleanup,
2585 },
2586
2587 {
2588 .name = "Power of two block writes",
2589 .prepare = mmc_test_prepare_write,
2590 .run = mmc_test_pow2_write,
2591 .cleanup = mmc_test_cleanup,
2592 },
2593
2594 {
2595 .name = "Power of two block reads",
2596 .prepare = mmc_test_prepare_read,
2597 .run = mmc_test_pow2_read,
2598 .cleanup = mmc_test_cleanup,
2599 },
2600
2601 {
2602 .name = "Weird sized block writes",
2603 .prepare = mmc_test_prepare_write,
2604 .run = mmc_test_weird_write,
2605 .cleanup = mmc_test_cleanup,
2606 },
2607
2608 {
2609 .name = "Weird sized block reads",
2610 .prepare = mmc_test_prepare_read,
2611 .run = mmc_test_weird_read,
2612 .cleanup = mmc_test_cleanup,
2613 },
2614
2615 {
2616 .name = "Badly aligned write",
2617 .prepare = mmc_test_prepare_write,
2618 .run = mmc_test_align_write,
2619 .cleanup = mmc_test_cleanup,
2620 },
2621
2622 {
2623 .name = "Badly aligned read",
2624 .prepare = mmc_test_prepare_read,
2625 .run = mmc_test_align_read,
2626 .cleanup = mmc_test_cleanup,
2627 },
2628
2629 {
2630 .name = "Badly aligned multi-block write",
2631 .prepare = mmc_test_prepare_write,
2632 .run = mmc_test_align_multi_write,
2633 .cleanup = mmc_test_cleanup,
2634 },
2635
2636 {
2637 .name = "Badly aligned multi-block read",
2638 .prepare = mmc_test_prepare_read,
2639 .run = mmc_test_align_multi_read,
2640 .cleanup = mmc_test_cleanup,
2641 },
2642
2643 {
2644 .name = "Correct xfer_size at write (start failure)",
2645 .run = mmc_test_xfersize_write,
2646 },
2647
2648 {
2649 .name = "Correct xfer_size at read (start failure)",
2650 .run = mmc_test_xfersize_read,
2651 },
2652
2653 {
2654 .name = "Correct xfer_size at write (midway failure)",
2655 .run = mmc_test_multi_xfersize_write,
2656 },
2657
2658 {
2659 .name = "Correct xfer_size at read (midway failure)",
2660 .run = mmc_test_multi_xfersize_read,
2661 },
2662
2663#ifdef CONFIG_HIGHMEM
2664
2665 {
2666 .name = "Highmem write",
2667 .prepare = mmc_test_prepare_write,
2668 .run = mmc_test_write_high,
2669 .cleanup = mmc_test_cleanup,
2670 },
2671
2672 {
2673 .name = "Highmem read",
2674 .prepare = mmc_test_prepare_read,
2675 .run = mmc_test_read_high,
2676 .cleanup = mmc_test_cleanup,
2677 },
2678
2679 {
2680 .name = "Multi-block highmem write",
2681 .prepare = mmc_test_prepare_write,
2682 .run = mmc_test_multi_write_high,
2683 .cleanup = mmc_test_cleanup,
2684 },
2685
2686 {
2687 .name = "Multi-block highmem read",
2688 .prepare = mmc_test_prepare_read,
2689 .run = mmc_test_multi_read_high,
2690 .cleanup = mmc_test_cleanup,
2691 },
2692
2693#else
2694
2695 {
2696 .name = "Highmem write",
2697 .run = mmc_test_no_highmem,
2698 },
2699
2700 {
2701 .name = "Highmem read",
2702 .run = mmc_test_no_highmem,
2703 },
2704
2705 {
2706 .name = "Multi-block highmem write",
2707 .run = mmc_test_no_highmem,
2708 },
2709
2710 {
2711 .name = "Multi-block highmem read",
2712 .run = mmc_test_no_highmem,
2713 },
2714
2715#endif /* CONFIG_HIGHMEM */
2716
2717 {
2718 .name = "Best-case read performance",
2719 .prepare = mmc_test_area_prepare_fill,
2720 .run = mmc_test_best_read_performance,
2721 .cleanup = mmc_test_area_cleanup,
2722 },
2723
2724 {
2725 .name = "Best-case write performance",
2726 .prepare = mmc_test_area_prepare_erase,
2727 .run = mmc_test_best_write_performance,
2728 .cleanup = mmc_test_area_cleanup,
2729 },
2730
2731 {
2732 .name = "Best-case read performance into scattered pages",
2733 .prepare = mmc_test_area_prepare_fill,
2734 .run = mmc_test_best_read_perf_max_scatter,
2735 .cleanup = mmc_test_area_cleanup,
2736 },
2737
2738 {
2739 .name = "Best-case write performance from scattered pages",
2740 .prepare = mmc_test_area_prepare_erase,
2741 .run = mmc_test_best_write_perf_max_scatter,
2742 .cleanup = mmc_test_area_cleanup,
2743 },
2744
2745 {
2746 .name = "Single read performance by transfer size",
2747 .prepare = mmc_test_area_prepare_fill,
2748 .run = mmc_test_profile_read_perf,
2749 .cleanup = mmc_test_area_cleanup,
2750 },
2751
2752 {
2753 .name = "Single write performance by transfer size",
2754 .prepare = mmc_test_area_prepare,
2755 .run = mmc_test_profile_write_perf,
2756 .cleanup = mmc_test_area_cleanup,
2757 },
2758
2759 {
2760 .name = "Single trim performance by transfer size",
2761 .prepare = mmc_test_area_prepare_fill,
2762 .run = mmc_test_profile_trim_perf,
2763 .cleanup = mmc_test_area_cleanup,
2764 },
2765
2766 {
2767 .name = "Consecutive read performance by transfer size",
2768 .prepare = mmc_test_area_prepare_fill,
2769 .run = mmc_test_profile_seq_read_perf,
2770 .cleanup = mmc_test_area_cleanup,
2771 },
2772
2773 {
2774 .name = "Consecutive write performance by transfer size",
2775 .prepare = mmc_test_area_prepare,
2776 .run = mmc_test_profile_seq_write_perf,
2777 .cleanup = mmc_test_area_cleanup,
2778 },
2779
2780 {
2781 .name = "Consecutive trim performance by transfer size",
2782 .prepare = mmc_test_area_prepare,
2783 .run = mmc_test_profile_seq_trim_perf,
2784 .cleanup = mmc_test_area_cleanup,
2785 },
2786
2787 {
2788 .name = "Random read performance by transfer size",
2789 .prepare = mmc_test_area_prepare,
2790 .run = mmc_test_random_read_perf,
2791 .cleanup = mmc_test_area_cleanup,
2792 },
2793
2794 {
2795 .name = "Random write performance by transfer size",
2796 .prepare = mmc_test_area_prepare,
2797 .run = mmc_test_random_write_perf,
2798 .cleanup = mmc_test_area_cleanup,
2799 },
2800
2801 {
2802 .name = "Large sequential read into scattered pages",
2803 .prepare = mmc_test_area_prepare,
2804 .run = mmc_test_large_seq_read_perf,
2805 .cleanup = mmc_test_area_cleanup,
2806 },
2807
2808 {
2809 .name = "Large sequential write from scattered pages",
2810 .prepare = mmc_test_area_prepare,
2811 .run = mmc_test_large_seq_write_perf,
2812 .cleanup = mmc_test_area_cleanup,
2813 },
2814
2815 {
2816 .name = "Write performance with blocking req 4k to 4MB",
2817 .prepare = mmc_test_area_prepare,
2818 .run = mmc_test_profile_mult_write_blocking_perf,
2819 .cleanup = mmc_test_area_cleanup,
2820 },
2821
2822 {
2823 .name = "Write performance with non-blocking req 4k to 4MB",
2824 .prepare = mmc_test_area_prepare,
2825 .run = mmc_test_profile_mult_write_nonblock_perf,
2826 .cleanup = mmc_test_area_cleanup,
2827 },
2828
2829 {
2830 .name = "Read performance with blocking req 4k to 4MB",
2831 .prepare = mmc_test_area_prepare,
2832 .run = mmc_test_profile_mult_read_blocking_perf,
2833 .cleanup = mmc_test_area_cleanup,
2834 },
2835
2836 {
2837 .name = "Read performance with non-blocking req 4k to 4MB",
2838 .prepare = mmc_test_area_prepare,
2839 .run = mmc_test_profile_mult_read_nonblock_perf,
2840 .cleanup = mmc_test_area_cleanup,
2841 },
2842
2843 {
2844 .name = "Write performance blocking req 1 to 512 sg elems",
2845 .prepare = mmc_test_area_prepare,
2846 .run = mmc_test_profile_sglen_wr_blocking_perf,
2847 .cleanup = mmc_test_area_cleanup,
2848 },
2849
2850 {
2851 .name = "Write performance non-blocking req 1 to 512 sg elems",
2852 .prepare = mmc_test_area_prepare,
2853 .run = mmc_test_profile_sglen_wr_nonblock_perf,
2854 .cleanup = mmc_test_area_cleanup,
2855 },
2856
2857 {
2858 .name = "Read performance blocking req 1 to 512 sg elems",
2859 .prepare = mmc_test_area_prepare,
2860 .run = mmc_test_profile_sglen_r_blocking_perf,
2861 .cleanup = mmc_test_area_cleanup,
2862 },
2863
2864 {
2865 .name = "Read performance non-blocking req 1 to 512 sg elems",
2866 .prepare = mmc_test_area_prepare,
2867 .run = mmc_test_profile_sglen_r_nonblock_perf,
2868 .cleanup = mmc_test_area_cleanup,
2869 },
2870
2871 {
2872 .name = "Reset test",
2873 .run = mmc_test_reset,
2874 },
2875
2876 {
2877 .name = "Commands during read - no Set Block Count (CMD23)",
2878 .prepare = mmc_test_area_prepare,
2879 .run = mmc_test_cmds_during_read,
2880 .cleanup = mmc_test_area_cleanup,
2881 },
2882
2883 {
2884 .name = "Commands during write - no Set Block Count (CMD23)",
2885 .prepare = mmc_test_area_prepare,
2886 .run = mmc_test_cmds_during_write,
2887 .cleanup = mmc_test_area_cleanup,
2888 },
2889
2890 {
2891 .name = "Commands during read - use Set Block Count (CMD23)",
2892 .prepare = mmc_test_area_prepare,
2893 .run = mmc_test_cmds_during_read_cmd23,
2894 .cleanup = mmc_test_area_cleanup,
2895 },
2896
2897 {
2898 .name = "Commands during write - use Set Block Count (CMD23)",
2899 .prepare = mmc_test_area_prepare,
2900 .run = mmc_test_cmds_during_write_cmd23,
2901 .cleanup = mmc_test_area_cleanup,
2902 },
2903
2904 {
2905 .name = "Commands during non-blocking read - use Set Block Count (CMD23)",
2906 .prepare = mmc_test_area_prepare,
2907 .run = mmc_test_cmds_during_read_cmd23_nonblock,
2908 .cleanup = mmc_test_area_cleanup,
2909 },
2910
2911 {
2912 .name = "Commands during non-blocking write - use Set Block Count (CMD23)",
2913 .prepare = mmc_test_area_prepare,
2914 .run = mmc_test_cmds_during_write_cmd23_nonblock,
2915 .cleanup = mmc_test_area_cleanup,
2916 },
2917};
2918
2919static DEFINE_MUTEX(mmc_test_lock);
2920
2921static LIST_HEAD(mmc_test_result);
2922
2923static void mmc_test_run(struct mmc_test_card *test, int testcase)
2924{
2925 int i, ret;
2926
2927 pr_info("%s: Starting tests of card %s...\n",
2928 mmc_hostname(test->card->host), mmc_card_id(test->card));
2929
2930 mmc_claim_host(test->card->host);
2931
2932 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++) {
2933 struct mmc_test_general_result *gr;
2934
2935 if (testcase && ((i + 1) != testcase))
2936 continue;
2937
2938 pr_info("%s: Test case %d. %s...\n",
2939 mmc_hostname(test->card->host), i + 1,
2940 mmc_test_cases[i].name);
2941
2942 if (mmc_test_cases[i].prepare) {
2943 ret = mmc_test_cases[i].prepare(test);
2944 if (ret) {
2945 pr_info("%s: Result: Prepare stage failed! (%d)\n",
2946 mmc_hostname(test->card->host),
2947 ret);
2948 continue;
2949 }
2950 }
2951
2952 gr = kzalloc(sizeof(*gr), GFP_KERNEL);
2953 if (gr) {
2954 INIT_LIST_HEAD(&gr->tr_lst);
2955
2956 /* Assign data what we know already */
2957 gr->card = test->card;
2958 gr->testcase = i;
2959
2960 /* Append container to global one */
2961 list_add_tail(&gr->link, &mmc_test_result);
2962
2963 /*
2964 * Save the pointer to created container in our private
2965 * structure.
2966 */
2967 test->gr = gr;
2968 }
2969
2970 ret = mmc_test_cases[i].run(test);
2971 switch (ret) {
2972 case RESULT_OK:
2973 pr_info("%s: Result: OK\n",
2974 mmc_hostname(test->card->host));
2975 break;
2976 case RESULT_FAIL:
2977 pr_info("%s: Result: FAILED\n",
2978 mmc_hostname(test->card->host));
2979 break;
2980 case RESULT_UNSUP_HOST:
2981 pr_info("%s: Result: UNSUPPORTED (by host)\n",
2982 mmc_hostname(test->card->host));
2983 break;
2984 case RESULT_UNSUP_CARD:
2985 pr_info("%s: Result: UNSUPPORTED (by card)\n",
2986 mmc_hostname(test->card->host));
2987 break;
2988 default:
2989 pr_info("%s: Result: ERROR (%d)\n",
2990 mmc_hostname(test->card->host), ret);
2991 }
2992
2993 /* Save the result */
2994 if (gr)
2995 gr->result = ret;
2996
2997 if (mmc_test_cases[i].cleanup) {
2998 ret = mmc_test_cases[i].cleanup(test);
2999 if (ret) {
3000 pr_info("%s: Warning: Cleanup stage failed! (%d)\n",
3001 mmc_hostname(test->card->host),
3002 ret);
3003 }
3004 }
3005 }
3006
3007 mmc_release_host(test->card->host);
3008
3009 pr_info("%s: Tests completed.\n",
3010 mmc_hostname(test->card->host));
3011}
3012
3013static void mmc_test_free_result(struct mmc_card *card)
3014{
3015 struct mmc_test_general_result *gr, *grs;
3016
3017 mutex_lock(&mmc_test_lock);
3018
3019 list_for_each_entry_safe(gr, grs, &mmc_test_result, link) {
3020 struct mmc_test_transfer_result *tr, *trs;
3021
3022 if (card && gr->card != card)
3023 continue;
3024
3025 list_for_each_entry_safe(tr, trs, &gr->tr_lst, link) {
3026 list_del(&tr->link);
3027 kfree(tr);
3028 }
3029
3030 list_del(&gr->link);
3031 kfree(gr);
3032 }
3033
3034 mutex_unlock(&mmc_test_lock);
3035}
3036
3037static LIST_HEAD(mmc_test_file_test);
3038
3039static int mtf_test_show(struct seq_file *sf, void *data)
3040{
3041 struct mmc_card *card = (struct mmc_card *)sf->private;
3042 struct mmc_test_general_result *gr;
3043
3044 mutex_lock(&mmc_test_lock);
3045
3046 list_for_each_entry(gr, &mmc_test_result, link) {
3047 struct mmc_test_transfer_result *tr;
3048
3049 if (gr->card != card)
3050 continue;
3051
3052 seq_printf(sf, "Test %d: %d\n", gr->testcase + 1, gr->result);
3053
3054 list_for_each_entry(tr, &gr->tr_lst, link) {
3055 seq_printf(sf, "%u %d %llu.%09u %u %u.%02u\n",
3056 tr->count, tr->sectors,
3057 (u64)tr->ts.tv_sec, (u32)tr->ts.tv_nsec,
3058 tr->rate, tr->iops / 100, tr->iops % 100);
3059 }
3060 }
3061
3062 mutex_unlock(&mmc_test_lock);
3063
3064 return 0;
3065}
3066
3067static int mtf_test_open(struct inode *inode, struct file *file)
3068{
3069 return single_open(file, mtf_test_show, inode->i_private);
3070}
3071
3072static ssize_t mtf_test_write(struct file *file, const char __user *buf,
3073 size_t count, loff_t *pos)
3074{
3075 struct seq_file *sf = (struct seq_file *)file->private_data;
3076 struct mmc_card *card = (struct mmc_card *)sf->private;
3077 struct mmc_test_card *test;
3078 long testcase;
3079 int ret;
3080
3081 ret = kstrtol_from_user(buf, count, 10, &testcase);
3082 if (ret)
3083 return ret;
3084
3085 test = kzalloc(sizeof(*test), GFP_KERNEL);
3086 if (!test)
3087 return -ENOMEM;
3088
3089 /*
3090 * Remove all test cases associated with given card. Thus we have only
3091 * actual data of the last run.
3092 */
3093 mmc_test_free_result(card);
3094
3095 test->card = card;
3096
3097 test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
3098#ifdef CONFIG_HIGHMEM
3099 test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
3100#endif
3101
3102#ifdef CONFIG_HIGHMEM
3103 if (test->buffer && test->highmem) {
3104#else
3105 if (test->buffer) {
3106#endif
3107 mutex_lock(&mmc_test_lock);
3108 mmc_test_run(test, testcase);
3109 mutex_unlock(&mmc_test_lock);
3110 }
3111
3112#ifdef CONFIG_HIGHMEM
3113 __free_pages(test->highmem, BUFFER_ORDER);
3114#endif
3115 kfree(test->buffer);
3116 kfree(test);
3117
3118 return count;
3119}
3120
3121static const struct file_operations mmc_test_fops_test = {
3122 .open = mtf_test_open,
3123 .read = seq_read,
3124 .write = mtf_test_write,
3125 .llseek = seq_lseek,
3126 .release = single_release,
3127};
3128
3129static int mtf_testlist_show(struct seq_file *sf, void *data)
3130{
3131 int i;
3132
3133 mutex_lock(&mmc_test_lock);
3134
3135 seq_puts(sf, "0:\tRun all tests\n");
3136 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++)
3137 seq_printf(sf, "%d:\t%s\n", i + 1, mmc_test_cases[i].name);
3138
3139 mutex_unlock(&mmc_test_lock);
3140
3141 return 0;
3142}
3143
3144DEFINE_SHOW_ATTRIBUTE(mtf_testlist);
3145
3146static void mmc_test_free_dbgfs_file(struct mmc_card *card)
3147{
3148 struct mmc_test_dbgfs_file *df, *dfs;
3149
3150 mutex_lock(&mmc_test_lock);
3151
3152 list_for_each_entry_safe(df, dfs, &mmc_test_file_test, link) {
3153 if (card && df->card != card)
3154 continue;
3155 debugfs_remove(df->file);
3156 list_del(&df->link);
3157 kfree(df);
3158 }
3159
3160 mutex_unlock(&mmc_test_lock);
3161}
3162
3163static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
3164 const char *name, umode_t mode, const struct file_operations *fops)
3165{
3166 struct dentry *file = NULL;
3167 struct mmc_test_dbgfs_file *df;
3168
3169 if (card->debugfs_root)
3170 debugfs_create_file(name, mode, card->debugfs_root, card, fops);
3171
3172 df = kmalloc(sizeof(*df), GFP_KERNEL);
3173 if (!df) {
3174 debugfs_remove(file);
3175 return -ENOMEM;
3176 }
3177
3178 df->card = card;
3179 df->file = file;
3180
3181 list_add(&df->link, &mmc_test_file_test);
3182 return 0;
3183}
3184
3185static int mmc_test_register_dbgfs_file(struct mmc_card *card)
3186{
3187 int ret;
3188
3189 mutex_lock(&mmc_test_lock);
3190
3191 ret = __mmc_test_register_dbgfs_file(card, "test", S_IWUSR | S_IRUGO,
3192 &mmc_test_fops_test);
3193 if (ret)
3194 goto err;
3195
3196 ret = __mmc_test_register_dbgfs_file(card, "testlist", S_IRUGO,
3197 &mtf_testlist_fops);
3198 if (ret)
3199 goto err;
3200
3201err:
3202 mutex_unlock(&mmc_test_lock);
3203
3204 return ret;
3205}
3206
3207static int mmc_test_probe(struct mmc_card *card)
3208{
3209 int ret;
3210
3211 if (!mmc_card_mmc(card) && !mmc_card_sd(card))
3212 return -ENODEV;
3213
3214 ret = mmc_test_register_dbgfs_file(card);
3215 if (ret)
3216 return ret;
3217
3218 if (card->ext_csd.cmdq_en) {
3219 mmc_claim_host(card->host);
3220 ret = mmc_cmdq_disable(card);
3221 mmc_release_host(card->host);
3222 if (ret)
3223 return ret;
3224 }
3225
3226 dev_info(&card->dev, "Card claimed for testing.\n");
3227
3228 return 0;
3229}
3230
3231static void mmc_test_remove(struct mmc_card *card)
3232{
3233 if (card->reenable_cmdq) {
3234 mmc_claim_host(card->host);
3235 mmc_cmdq_enable(card);
3236 mmc_release_host(card->host);
3237 }
3238 mmc_test_free_result(card);
3239 mmc_test_free_dbgfs_file(card);
3240}
3241
3242static void mmc_test_shutdown(struct mmc_card *card)
3243{
3244}
3245
3246static struct mmc_driver mmc_driver = {
3247 .drv = {
3248 .name = "mmc_test",
3249 },
3250 .probe = mmc_test_probe,
3251 .remove = mmc_test_remove,
3252 .shutdown = mmc_test_shutdown,
3253};
3254
3255static int __init mmc_test_init(void)
3256{
3257 return mmc_register_driver(&mmc_driver);
3258}
3259
3260static void __exit mmc_test_exit(void)
3261{
3262 /* Clear stalled data if card is still plugged */
3263 mmc_test_free_result(NULL);
3264 mmc_test_free_dbgfs_file(NULL);
3265
3266 mmc_unregister_driver(&mmc_driver);
3267}
3268
3269module_init(mmc_test_init);
3270module_exit(mmc_test_exit);
3271
3272MODULE_LICENSE("GPL");
3273MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver");
3274MODULE_AUTHOR("Pierre Ossman");