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tests/qtest/nvme-test: add persistent memory region test

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This will test the PMR functionality.

Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
[k.jensen: replaced memory-backend-file with memory-backend-ram]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Gollu Appalanaidu 2021-06-18 16:04:31 +05:30 committed by Klaus Jensen
parent 234214734f
commit 51e90178f7
1 changed files with 60 additions and 1 deletions
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61
tests/qtest/nvme-test.c
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@ -13,6 +13,7 @@
#include "libqos/libqtest.h"
#include "libqos/qgraph.h"
#include "libqos/pci.h"
#include "include/block/nvme.h"
typedef struct QNvme QNvme;
@ -66,12 +67,65 @@ static void nvmetest_oob_cmb_test(void *obj, void *data, QGuestAllocator *alloc)
g_assert_cmpint(qpci_io_readl(pdev, bar, cmb_bar_size - 1), !=, 0x44332211);
}
static void nvmetest_pmr_reg_test(void *obj, void *data, QGuestAllocator *alloc)
{
QNvme *nvme = obj;
QPCIDevice *pdev = &nvme->dev;
QPCIBar pmr_bar, nvme_bar;
uint32_t pmrcap, pmrsts;
qpci_device_enable(pdev);
pmr_bar = qpci_iomap(pdev, 4, NULL);
/* Without Enabling PMRCTL check bar enablemet */
qpci_io_writel(pdev, pmr_bar, 0, 0xccbbaa99);
g_assert_cmpint(qpci_io_readb(pdev, pmr_bar, 0), !=, 0x99);
g_assert_cmpint(qpci_io_readw(pdev, pmr_bar, 0), !=, 0xaa99);
/* Map NVMe Bar Register to Enable the Mem Region */
nvme_bar = qpci_iomap(pdev, 0, NULL);
pmrcap = qpci_io_readl(pdev, nvme_bar, 0xe00);
g_assert_cmpint(NVME_PMRCAP_RDS(pmrcap), ==, 0x1);
g_assert_cmpint(NVME_PMRCAP_WDS(pmrcap), ==, 0x1);
g_assert_cmpint(NVME_PMRCAP_BIR(pmrcap), ==, 0x4);
g_assert_cmpint(NVME_PMRCAP_PMRWBM(pmrcap), ==, 0x2);
g_assert_cmpint(NVME_PMRCAP_CMSS(pmrcap), ==, 0x1);
/* Enable PMRCTRL */
qpci_io_writel(pdev, nvme_bar, 0xe04, 0x1);
qpci_io_writel(pdev, pmr_bar, 0, 0x44332211);
g_assert_cmpint(qpci_io_readb(pdev, pmr_bar, 0), ==, 0x11);
g_assert_cmpint(qpci_io_readw(pdev, pmr_bar, 0), ==, 0x2211);
g_assert_cmpint(qpci_io_readl(pdev, pmr_bar, 0), ==, 0x44332211);
pmrsts = qpci_io_readl(pdev, nvme_bar, 0xe08);
g_assert_cmpint(NVME_PMRSTS_NRDY(pmrsts), ==, 0x0);
/* Disable PMRCTRL */
qpci_io_writel(pdev, nvme_bar, 0xe04, 0x0);
qpci_io_writel(pdev, pmr_bar, 0, 0x88776655);
g_assert_cmpint(qpci_io_readb(pdev, pmr_bar, 0), !=, 0x55);
g_assert_cmpint(qpci_io_readw(pdev, pmr_bar, 0), !=, 0x6655);
g_assert_cmpint(qpci_io_readl(pdev, pmr_bar, 0), !=, 0x88776655);
pmrsts = qpci_io_readl(pdev, nvme_bar, 0xe08);
g_assert_cmpint(NVME_PMRSTS_NRDY(pmrsts), ==, 0x1);
qpci_iounmap(pdev, nvme_bar);
qpci_iounmap(pdev, pmr_bar);
}
static void nvme_register_nodes(void)
{
QOSGraphEdgeOptions opts = {
.extra_device_opts = "addr=04.0,drive=drv0,serial=foo",
.before_cmd_line = "-drive id=drv0,if=none,file=null-co://,"
"file.read-zeroes=on,format=raw",
"file.read-zeroes=on,format=raw "
"-object memory-backend-ram,id=pmr0,"
"share=on,size=8",
};
add_qpci_address(&opts, &(QPCIAddress) { .devfn = QPCI_DEVFN(4, 0) });
@ -83,6 +137,11 @@ static void nvme_register_nodes(void)
qos_add_test("oob-cmb-access", "nvme", nvmetest_oob_cmb_test, &(QOSGraphTestOptions) {
.edge.extra_device_opts = "cmb_size_mb=2"
});
qos_add_test("pmr-test-access", "nvme", nvmetest_pmr_reg_test,
&(QOSGraphTestOptions) {
.edge.extra_device_opts = "pmrdev=pmr0"
});
}
libqos_init(nvme_register_nodes);