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authorJohn Snow <jsnow@redhat.com>2015-02-25 18:06:38 -0500
committerKevin Wolf <kwolf@redhat.com>2015-03-10 14:02:23 +0100
commitd6c403edc7ce890be12915f12eb02062bf275ca8 (patch)
treef6b6ab701dc9f6b0a82e6bfa036705fd999c7272
parentf9f963e0fbba98d7ece75287c40d0c1b249dc9b4 (diff)
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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 <jsnow@redhat.com> Message-id: 1424905602-24715-5-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--tests/ahci-test.c34
1 files changed, 28 insertions, 6 deletions
diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 9fe9fb5..9394d85 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();