[PATCH v8 05/12] mmc: mmc_test: add test for non-blocking transfers
From: Per Forlin <hidden>
Date: 2011-07-01 13:29:29
Also in:
linux-mmc, lkml
On 28 June 2011 10:11, Per Forlin [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Add four tests for read and write performance per different transfer size, 4k to 4M. ?* Read using blocking mmc request ?* Read using non-blocking mmc request ?* Write using blocking mmc request ?* Write using non-blocking mmc request The host dirver must support pre_req() and post_req() in order to run the non-blocking test cases. Signed-off-by: Per Forlin <redacted> --- ?drivers/mmc/card/mmc_test.c | ?311 +++++++++++++++++++++++++++++++++++++++++- ?1 files changed, 303 insertions(+), 8 deletions(-)diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c +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_test_async_req test_areq[2]; + ? ? ? struct mmc_async_req *done_areq; + ? ? ? struct mmc_async_req *cur_areq = &test_areq[0].areq; + ? ? ? struct mmc_async_req *other_areq = &test_areq[1].areq; + ? ? ? int i; + ? ? ? int ret; + + ? ? ? test_areq[0].test = test; + ? ? ? test_areq[1].test = test; + + ? ? ? if (!test->card->host->ops->pre_req || + ? ? ? ? ? ? ? !test->card->host->ops->post_req) + ? ? ? ? ? ? ? return -RESULT_UNSUP_HOST;
Remove this error check. It is fine to run this test without these hooks, but there will be no performance gain compared to blocking request. ...
+/*
+ * 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,I got this comment from Linus W. Use TEST_AREA_MAX_SIZE instead of hard coded 128*1024*1024. update all relevant functions. /Per