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[Qemu-devel] [PATCH 19/19] qtest/ahci: Adding simple dma read-write test
From: |
John Snow |
Subject: |
[Qemu-devel] [PATCH 19/19] qtest/ahci: Adding simple dma read-write test |
Date: |
Fri, 30 Jan 2015 13:42:13 -0500 |
Adds a test case for AHCI wherein we write a 4K
block of a changing pattern to sector 0, then
read back that 4K and compare the transmit and
receive buffers.
Signed-off-by: John Snow <address@hidden>
---
tests/ahci-test.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index cae94b5..1f02fa8 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -731,6 +731,45 @@ static void ahci_test_identify(AHCIQState *ahci)
g_assert_cmphex(sect_size, ==, 0x200);
}
+static void ahci_test_dma_rw_simple(AHCIQState *ahci)
+{
+ uint64_t ptr;
+ uint8_t px;
+ unsigned i;
+ const unsigned bufsize = 4096;
+ unsigned char *tx = g_malloc(bufsize);
+ unsigned char *rx = g_malloc0(bufsize);
+
+ g_assert(ahci != NULL);
+
+ /* Pick the first running port and clear it. */
+ px = ahci_port_select(ahci);
+ ahci_port_clear(ahci, px);
+
+ /*** Create pattern and transfer to guest ***/
+ /* Data buffer in the guest */
+ ptr = ahci_alloc(ahci, bufsize);
+ g_assert(ptr);
+
+ /* Write some indicative pattern to our 4K buffer. */
+ for (i = 0; i < bufsize; i++) {
+ tx[i] = (bufsize - i);
+ }
+ memwrite(ptr, tx, bufsize);
+
+ /* Write this buffer to disk, then read it back to the DMA buffer. */
+ ahci_guest_io(ahci, px, CMD_WRITE_DMA, ptr, bufsize);
+ ahci_guest_io(ahci, px, CMD_READ_DMA, ptr, bufsize);
+
+ /*** Read back the Data ***/
+ memread(ptr, rx, bufsize);
+ g_assert_cmphex(memcmp(tx, rx, bufsize), ==, 0);
+
+ ahci_free(ahci, ptr);
+ g_free(tx);
+ g_free(rx);
+}
+
/******************************************************************************/
/* Test Interfaces
*/
/******************************************************************************/
@@ -811,6 +850,18 @@ static void test_identify(void)
ahci_shutdown(ahci);
}
+/**
+ * Perform a simple DMA R/W test, using a single PRD and non-NCQ commands.
+ */
+static void test_dma_rw_simple(void)
+{
+ AHCIQState *ahci;
+
+ ahci = ahci_macro_bootup();
+ ahci_test_dma_rw_simple(ahci);
+ ahci_shutdown(ahci);
+}
+
/******************************************************************************/
int main(int argc, char **argv)
@@ -866,6 +917,7 @@ int main(int argc, char **argv)
qtest_add_func("/ahci/hba_spec", test_hba_spec);
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);
ret = g_test_run();
--
1.9.3
- [Qemu-devel] [PATCH 04/19] libqos/ahci: Add command header helpers, (continued)
- [Qemu-devel] [PATCH 04/19] libqos/ahci: Add command header helpers, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 09/19] qtest/ahci: Demagic ahci tests., John Snow, 2015/01/30
- [Qemu-devel] [PATCH 13/19] libqos/ahci: add ahci command size setters, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 08/19] libqos/ahci: Add cmd response sanity check helpers, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 10/19] libqos/ahci: Add ide cmd properties, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 14/19] libqos/ahci: Add ahci_guest_io, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 11/19] libqos/ahci: add ahci command functions, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 17/19] qtest/ahci: Add a macro bootup routine, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 12/19] libqos/ahci: add ahci command verify, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 18/19] qtest/ahci: Assert sector size in identify test, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 19/19] qtest/ahci: Adding simple dma read-write test,
John Snow <=
- [Qemu-devel] [PATCH 15/19] libqos/ahci: add ahci_io, John Snow, 2015/01/30
- [Qemu-devel] [PATCH 16/19] libqos/ahci: Add ahci_clean_mem, John Snow, 2015/01/30