From: John Snow <js...@redhat.com>
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 <js...@redhat.com>
Message-id: 1424905602-24715-5-git-send-email-js...@redhat.com
Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
---
tests/ahci-test.c | 38 ++++++++++++++++++++++++++++++--------
1 file changed, 30 insertions(+), 8 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);
}
@@ -852,15 +851,35 @@ 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_interface(unsigned bufsize)
+{
+ AHCIQState *ahci;
+
+ ahci = ahci_boot_and_enable();
+ ahci_test_dma_rw_simple(ahci, bufsize);
+ ahci_shutdown(ahci);
+}
+
static void test_dma_rw_simple(void)
{
- AHCIQState *ahci;
+ test_dma_rw_interface(4096);
+}
- ahci = ahci_boot_and_enable();
- ahci_test_dma_rw_simple(ahci);
- ahci_shutdown(ahci);
+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);
}
/******************************************************************************/
@@ -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();
--
2.1.0
