Add four tests for read and write performance per
different transfer size, 4k to 4M.
* Read using blocking mmc request
* Read using none blocking mmc request
* Write using blocking mmc request
* Write using none blocking mmc request
The host dirver must support pre_req() and post_req()
in order to run the none blocking test cases.
Signed-off-by: Per Forlin <per.for...@linaro.org>
---
drivers/mmc/card/mmc_test.c | 312 +++++++++++++++++++++++++++++++++++++++++-
1 files changed, 304 insertions(+), 8 deletions(-)
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 466cdb5..1000383 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -22,6 +22,7 @@
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/seq_file.h>
+#include <linux/random.h>
#define RESULT_OK 0
#define RESULT_FAIL 1
@@ -51,10 +52,12 @@ struct mmc_test_pages {
* struct mmc_test_mem - allocated memory.
* @arr: array of allocations
* @cnt: number of allocations
+ * @size_min_cmn: lowest common size in array of allocations
*/
struct mmc_test_mem {
struct mmc_test_pages *arr;
unsigned int cnt;
+ unsigned int size_min_cmn;
};
/**
@@ -148,6 +151,21 @@ struct mmc_test_card {
struct mmc_test_general_result *gr;
};
+enum mmc_test_prep_media {
+ MMC_TEST_PREP_NONE = 0,
+ MMC_TEST_PREP_WRITE_FULL = 1 << 0,
+ MMC_TEST_PREP_ERASE = 1 << 1,
+};
+
+struct mmc_test_multiple_rw {
+ unsigned int *bs;
+ unsigned int len;
+ unsigned int size;
+ bool do_write;
+ bool do_nonblock_req;
+ enum mmc_test_prep_media prepare;
+};
+
/*******************************************************************/
/* General helper functions */
/*******************************************************************/
@@ -307,6 +325,7 @@ static struct mmc_test_mem *mmc_test_alloc_mem(unsigned
long min_sz,
unsigned long max_seg_page_cnt = DIV_ROUND_UP(max_seg_sz, PAGE_SIZE);
unsigned long page_cnt = 0;
unsigned long limit = nr_free_buffer_pages() >> 4;
+ unsigned int min_cmn = 0;
struct mmc_test_mem *mem;
if (max_page_cnt > limit)
@@ -350,6 +369,12 @@ static struct mmc_test_mem *mmc_test_alloc_mem(unsigned
long min_sz,
mem->arr[mem->cnt].page = page;
mem->arr[mem->cnt].order = order;
mem->cnt += 1;
+ if (!min_cmn)
+ min_cmn = PAGE_SIZE << order;
+ else
+ min_cmn = min(min_cmn,
+ (unsigned int) (PAGE_SIZE << order));
+
if (max_page_cnt <= (1UL << order))
break;
max_page_cnt -= 1UL << order;
@@ -360,6 +385,7 @@ static struct mmc_test_mem *mmc_test_alloc_mem(unsigned
long min_sz,
break;
}
}
+ mem->size_min_cmn = min_cmn;
return mem;
@@ -386,7 +412,6 @@ static int mmc_test_map_sg(struct mmc_test_mem *mem,
unsigned long sz,
do {
for (i = 0; i < mem->cnt; i++) {
unsigned long len = PAGE_SIZE << mem->arr[i].order;
-
if (len > sz)
len = sz;
if (len > max_seg_sz)
@@ -725,6 +750,94 @@ static int mmc_test_check_broken_result(struct
mmc_test_card *test,
}
/*
+ * Tests nonblock transfer with certain parameters
+ */
+static void mmc_test_nonblock_reset(struct mmc_request *mrq,
+ struct mmc_command *cmd,
+ struct mmc_command *stop,
+ struct mmc_data *data)
+{
+ memset(mrq, 0, sizeof(struct mmc_request));
+ memset(cmd, 0, sizeof(struct mmc_command));
+ memset(data, 0, sizeof(struct mmc_data));
+ memset(stop, 0, sizeof(struct mmc_command));
+
+ mrq->cmd = cmd;
+ mrq->data = data;
+ mrq->stop = stop;
+}
+static int mmc_test_nonblock_transfer(struct mmc_test_card *test,
+ struct scatterlist *sg, unsigned sg_len,
+ unsigned dev_addr, unsigned blocks,
+ unsigned blksz, int write, int count)
+{
+ struct mmc_request mrq1;
+ struct mmc_command cmd1;
+ struct mmc_command stop1;
+ struct mmc_data data1;
+
+ struct mmc_request mrq2;
+ struct mmc_command cmd2;
+ struct mmc_command stop2;
+ struct mmc_data data2;
+
+ struct mmc_request *cur_mrq;
+ struct mmc_request *prev_mrq;
+ int i;
+ int ret = 0;
+
+ if (!test->card->host->ops->pre_req ||
+ !test->card->host->ops->post_req)
+ return -RESULT_UNSUP_HOST;
+
+ mmc_test_nonblock_reset(&mrq1, &cmd1, &stop1, &data1);
+ mmc_test_nonblock_reset(&mrq2, &cmd2, &stop2, &data2);
+
+ cur_mrq = &mrq1;
+ prev_mrq = NULL;
+
+ for (i = 0; i < count; i++) {
+ mmc_test_prepare_mrq(test, cur_mrq, sg, sg_len, dev_addr,
+ blocks, blksz, write);
+ mmc_pre_req(test->card->host, cur_mrq, !prev_mrq);
+
+ if (prev_mrq) {
+ mmc_wait_for_req_done(prev_mrq);
+ mmc_test_wait_busy(test);
+ ret = mmc_test_check_result(test, prev_mrq);
+ if (ret)
+ goto err;
+ }
+
+ mmc_start_req(test->card->host, cur_mrq);
+
+ if (prev_mrq)
+ mmc_post_req(test->card->host, prev_mrq, 0);
+
+ prev_mrq = cur_mrq;
+ if (cur_mrq == &mrq1) {
+ mmc_test_nonblock_reset(&mrq2, &cmd2, &stop2, &data2);
+ cur_mrq = &mrq2;
+ } else {
+ mmc_test_nonblock_reset(&mrq1, &cmd1, &stop1, &data1);
+ cur_mrq = &mrq1;
+ }
+ dev_addr += blocks;
+ }
+
+ mmc_wait_for_req_done(prev_mrq);
+ mmc_test_wait_busy(test);
+ ret = mmc_test_check_result(test, prev_mrq);
+ if (ret)
+ goto err;
+ mmc_post_req(test->card->host, prev_mrq, 0);
+
+ return ret;
+err:
+ return ret;
+}
+
+/*
* Tests a basic transfer with certain parameters
*/
static int mmc_test_simple_transfer(struct mmc_test_card *test,
@@ -1351,14 +1464,17 @@ static int mmc_test_area_transfer(struct mmc_test_card
*test,
}
/*
- * Map and transfer bytes.
+ * Map and transfer bytes for multiple transfers.
*/
-static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
- unsigned int dev_addr, int write, int max_scatter,
- int timed)
+static int mmc_test_area_io_seq(struct mmc_test_card *test, unsigned long sz,
+ unsigned int dev_addr, int write,
+ int max_scatter, int timed, int count,
+ bool nonblock)
{
struct timespec ts1, ts2;
- int ret;
+ int ret = 0;
+ int i;
+ struct mmc_test_area *t = &test->area;
/*
* In the case of a maximally scattered transfer, the maximum transfer
@@ -1382,8 +1498,15 @@ static int mmc_test_area_io(struct mmc_test_card *test,
unsigned long sz,
if (timed)
getnstimeofday(&ts1);
+ if (nonblock)
+ ret = mmc_test_nonblock_transfer(test, t->sg, t->sg_len,
+ dev_addr, t->blocks, 512, write, count);
+ else
+ for (i = 0; i < count && ret == 0; i++) {
+ ret = mmc_test_area_transfer(test, dev_addr, write);
+ dev_addr += sz >> 9;
+ }
- ret = mmc_test_area_transfer(test, dev_addr, write);
if (ret)
return ret;
@@ -1391,11 +1514,19 @@ static int mmc_test_area_io(struct mmc_test_card *test,
unsigned long sz,
getnstimeofday(&ts2);
if (timed)
- mmc_test_print_rate(test, sz, &ts1, &ts2);
+ mmc_test_print_avg_rate(test, sz, count, &ts1, &ts2);
return 0;
}
+static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
+ unsigned int dev_addr, int write, int max_scatter,
+ int timed)
+{
+ return mmc_test_area_io_seq(test, sz, dev_addr, write, max_scatter,
+ timed, 1, false);
+}
+
/*
* Write the test area entirely.
*/
@@ -1956,6 +2087,144 @@ static int mmc_test_large_seq_write_perf(struct
mmc_test_card *test)
return mmc_test_large_seq_perf(test, 1);
}
+static int mmc_test_rw_multiple(struct mmc_test_card *test,
+ struct mmc_test_multiple_rw *tdata,
+ unsigned int reqsize, unsigned int size)
+{
+ unsigned int dev_addr;
+ struct mmc_test_area *t = &test->area;
+ int ret = 0;
+ int max_reqsize = max(t->mem->size_min_cmn *
+ min(t->max_segs, t->mem->cnt), t->max_tfr);
+
+ /* Set up test area */
+ if (size > mmc_test_capacity(test->card) / 2 * 512)
+ size = mmc_test_capacity(test->card) / 2 * 512;
+ if (reqsize > max_reqsize)
+ reqsize = max_reqsize;
+ dev_addr = mmc_test_capacity(test->card) / 4;
+ if ((dev_addr & 0xffff0000))
+ dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
+ else
+ dev_addr &= 0xfffff800; /* Round to 1MiB boundary */
+ if (!dev_addr)
+ goto err;
+
+ /* prepare test area */
+ if (mmc_can_erase(test->card) &&
+ tdata->prepare & MMC_TEST_PREP_ERASE) {
+ ret = mmc_erase(test->card, dev_addr,
+ size / 512, MMC_SECURE_ERASE_ARG);
+ if (ret)
+ ret = mmc_erase(test->card, dev_addr,
+ size / 512, MMC_ERASE_ARG);
+ if (ret)
+ goto err;
+ }
+
+ /* Run test */
+ ret = mmc_test_area_io_seq(test, reqsize, dev_addr,
+ tdata->do_write, 0, 1, size / reqsize,
+ tdata->do_nonblock_req);
+ if (ret)
+ goto err;
+
+ return ret;
+ err:
+ printk(KERN_INFO "[%s] error\n", __func__);
+ return ret;
+}
+
+static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
+ struct mmc_test_multiple_rw *rw)
+{
+ int ret = 0;
+ int i;
+
+ for (i = 0 ; i < rw->len && ret == 0; i++) {
+ ret = mmc_test_rw_multiple(test, rw, rw->bs[i], rw->size);
+ if (ret)
+ break;
+ }
+ return ret;
+}
+
+/*
+ * Multiple blocking write 4k to 4 MB chunks
+ */
+static int mmc_test_profile_mult_write_blocking_perf(struct mmc_test_card
*test)
+{
+ unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
+ 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
+ struct mmc_test_multiple_rw test_data = {
+ .bs = bs,
+ .size = 128*1024*1024,
+ .len = ARRAY_SIZE(bs),
+ .do_write = true,
+ .do_nonblock_req = false,
+ .prepare = MMC_TEST_PREP_ERASE,
+ };
+
+ return mmc_test_rw_multiple_size(test, &test_data);
+};
+
+/*
+ * Multiple none blocking write 4k to 4 MB chunks
+ */
+static int mmc_test_profile_mult_write_nonblock_perf(struct mmc_test_card
*test)
+{
+ unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
+ 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
+ struct mmc_test_multiple_rw test_data = {
+ .bs = bs,
+ .size = 128*1024*1024,
+ .len = ARRAY_SIZE(bs),
+ .do_write = true,
+ .do_nonblock_req = true,
+ .prepare = MMC_TEST_PREP_ERASE,
+ };
+
+ return mmc_test_rw_multiple_size(test, &test_data);
+}
+
+/*
+ * Multiple blocking read 4k to 4 MB chunks
+ */
+static int mmc_test_profile_mult_read_blocking_perf(struct mmc_test_card *test)
+{
+ unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
+ 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
+ struct mmc_test_multiple_rw test_data = {
+ .bs = bs,
+ .size = 128*1024*1024,
+ .len = ARRAY_SIZE(bs),
+ .do_write = false,
+ .do_nonblock_req = false,
+ .prepare = MMC_TEST_PREP_NONE,
+ };
+
+ return mmc_test_rw_multiple_size(test, &test_data);
+}
+
+/*
+ * Multiple none blocking read 4k to 4 MB chunks
+ */
+static int mmc_test_profile_mult_read_nonblock_perf(struct mmc_test_card *test)
+{
+ unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
+ 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
+ struct mmc_test_multiple_rw test_data = {
+ .bs = bs,
+ .size = 128*1024*1024,
+ .len = ARRAY_SIZE(bs),
+ .do_write = false,
+ .do_nonblock_req = true,
+ .prepare = MMC_TEST_PREP_NONE,
+ };
+
+ return mmc_test_rw_multiple_size(test, &test_data);
+}
+
static const struct mmc_test_case mmc_test_cases[] = {
{
.name = "Basic write (no data verification)",
@@ -2223,6 +2492,33 @@ static const struct mmc_test_case mmc_test_cases[] = {
.cleanup = mmc_test_area_cleanup,
},
+ {
+ .name = "Write performance with blocking req 4k to 4MB",
+ .prepare = mmc_test_area_prepare,
+ .run = mmc_test_profile_mult_write_blocking_perf,
+ .cleanup = mmc_test_area_cleanup,
+ },
+
+ {
+ .name = "Write performance with none blocking req 4k to 4MB",
+ .prepare = mmc_test_area_prepare,
+ .run = mmc_test_profile_mult_write_nonblock_perf,
+ .cleanup = mmc_test_area_cleanup,
+ },
+
+ {
+ .name = "Read performance with blocking req 4k to 4MB",
+ .prepare = mmc_test_area_prepare,
+ .run = mmc_test_profile_mult_read_blocking_perf,
+ .cleanup = mmc_test_area_cleanup,
+ },
+
+ {
+ .name = "Read performance with none blocking req 4k to 4MB",
+ .prepare = mmc_test_area_prepare,
+ .run = mmc_test_profile_mult_read_nonblock_perf,
+ .cleanup = mmc_test_area_cleanup,
+ },
};
static DEFINE_MUTEX(mmc_test_lock);
--
1.7.4.1
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