From d6c403edc7ce890be12915f12eb02062bf275ca8 Mon Sep 17 00:00:00 2001 From: John Snow Date: Wed, 25 Feb 2015 18:06:38 -0500 Subject: [PATCH] qtest/ahci: Add DMA test variants These test a few different pathways in the AHCI code. short: Test the minimum transfer size, exactly one sector. simple: Test a transfer using a single PRD, in this case, 4K. double: Test transferring 8K, which we will split up as two PRDs. long: Test transferring a lot of data using many PRDs, 256K. Signed-off-by: John Snow Message-id: 1424905602-24715-5-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- tests/ahci-test.c | 34 ++++++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-) diff --git a/tests/ahci-test.c b/tests/ahci-test.c index 9fe9fb5f44..9394d85872 100644 --- a/tests/ahci-test.c +++ b/tests/ahci-test.c @@ -731,12 +731,11 @@ static void ahci_test_identify(AHCIQState *ahci) g_assert_cmphex(sect_size, ==, 0x200); } -static void ahci_test_dma_rw_simple(AHCIQState *ahci) +static void ahci_test_dma_rw_simple(AHCIQState *ahci, unsigned bufsize) { uint64_t ptr; uint8_t port; unsigned i; - const unsigned bufsize = 4096; unsigned char *tx = g_malloc(bufsize); unsigned char *rx = g_malloc0(bufsize); @@ -751,7 +750,7 @@ static void ahci_test_dma_rw_simple(AHCIQState *ahci) ptr = ahci_alloc(ahci, bufsize); g_assert(ptr); - /* Write some indicative pattern to our 4K buffer. */ + /* Write some indicative pattern to our buffer. */ for (i = 0; i < bufsize; i++) { tx[i] = (bufsize - i); } @@ -852,17 +851,37 @@ static void test_identify(void) } /** - * Perform a simple DMA R/W test, using a single PRD and non-NCQ commands. + * Perform a simple DMA R/W test using non-NCQ commands. */ -static void test_dma_rw_simple(void) +static void test_dma_rw_interface(unsigned bufsize) { AHCIQState *ahci; ahci = ahci_boot_and_enable(); - ahci_test_dma_rw_simple(ahci); + ahci_test_dma_rw_simple(ahci, bufsize); ahci_shutdown(ahci); } +static void test_dma_rw_simple(void) +{ + test_dma_rw_interface(4096); +} + +static void test_dma_rw_double(void) +{ + test_dma_rw_interface(8192); +} + +static void test_dma_rw_long(void) +{ + test_dma_rw_interface(4096 * 64); +} + +static void test_dma_rw_short(void) +{ + test_dma_rw_interface(512); +} + /******************************************************************************/ int main(int argc, char **argv) @@ -919,6 +938,9 @@ int main(int argc, char **argv) qtest_add_func("/ahci/hba_enable", test_hba_enable); qtest_add_func("/ahci/identify", test_identify); qtest_add_func("/ahci/dma/simple", test_dma_rw_simple); + qtest_add_func("/ahci/dma/double", test_dma_rw_double); + qtest_add_func("/ahci/dma/long", test_dma_rw_long); + qtest_add_func("/ahci/dma/short", test_dma_rw_short); ret = g_test_run(); -- GitLab