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ide-test: test trim requests

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Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1516611841-5526-1-git-send-email-anton.nefedov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Anton Nefedov 2018-02-07 11:25:22 -05:00 committed by John Snow
parent 0833df03f4
commit 29e1d473cc
1 changed files with 71 additions and 0 deletions
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71
tests/ide-test.c
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@ -52,6 +52,7 @@
enum {
reg_data = 0x0,
reg_feature = 0x1,
reg_error = 0x1,
reg_nsectors = 0x2,
reg_lba_low = 0x3,
reg_lba_middle = 0x4,
@ -69,6 +70,11 @@ enum {
ERR = 0x01,
};
/* Error field */
enum {
ABRT = 0x04,
};
enum {
DEV = 0x10,
LBA = 0x40,
@ -81,6 +87,7 @@ enum {
};
enum {
CMD_DSM = 0x06,
CMD_READ_DMA = 0xc8,
CMD_WRITE_DMA = 0xca,
CMD_FLUSH_CACHE = 0xe7,
@ -179,6 +186,12 @@ typedef struct PrdtEntry {
#define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
#define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
static uint64_t trim_range_le(uint64_t sector, uint16_t count)
{
/* 2-byte range, 6-byte LBA */
return cpu_to_le64(((uint64_t)count << 48) + sector);
}
static int send_dma_request(int cmd, uint64_t sector, int nb_sectors,
PrdtEntry *prdt, int prdt_entries,
void(*post_exec)(QPCIDevice *dev, QPCIBar ide_bar,
@ -204,6 +217,7 @@ static int send_dma_request(int cmd, uint64_t sector, int nb_sectors,
* the SCSI command being sent in the packet, too. */
from_dev = true;
break;
case CMD_DSM:
case CMD_WRITE_DMA:
from_dev = false;
break;
@ -234,6 +248,10 @@ static int send_dma_request(int cmd, uint64_t sector, int nb_sectors,
/* Enables ATAPI DMA; otherwise PIO is attempted */
qpci_io_writeb(dev, ide_bar, reg_feature, 0x01);
} else {
if (cmd == CMD_DSM) {
/* trim bit */
qpci_io_writeb(dev, ide_bar, reg_feature, 0x01);
}
qpci_io_writeb(dev, ide_bar, reg_nsectors, nb_sectors);
qpci_io_writeb(dev, ide_bar, reg_lba_low, sector & 0xff);
qpci_io_writeb(dev, ide_bar, reg_lba_middle, (sector >> 8) & 0xff);
@ -344,6 +362,58 @@ static void test_bmdma_simple_rw(void)
g_free(cmpbuf);
}
static void test_bmdma_trim(void)
{
QPCIDevice *dev;
QPCIBar bmdma_bar, ide_bar;
uint8_t status;
const uint64_t trim_range[] = { trim_range_le(0, 2),
trim_range_le(6, 8),
trim_range_le(10, 1),
};
const uint64_t bad_range = trim_range_le(TEST_IMAGE_SIZE / 512 - 1, 2);
size_t len = 512;
uint8_t *buf;
uintptr_t guest_buf = guest_alloc(guest_malloc, len);
PrdtEntry prdt[] = {
{
.addr = cpu_to_le32(guest_buf),
.size = cpu_to_le32(len | PRDT_EOT),
},
};
dev = get_pci_device(&bmdma_bar, &ide_bar);
buf = g_malloc(len);
/* Normal request */
*((uint64_t *)buf) = trim_range[0];
*((uint64_t *)buf + 1) = trim_range[1];
memwrite(guest_buf, buf, 2 * sizeof(uint64_t));
status = send_dma_request(CMD_DSM, 0, 1, prdt,
ARRAY_SIZE(prdt), NULL);
g_assert_cmphex(status, ==, BM_STS_INTR);
assert_bit_clear(qpci_io_readb(dev, ide_bar, reg_status), DF | ERR);
/* Request contains invalid range */
*((uint64_t *)buf) = trim_range[2];
*((uint64_t *)buf + 1) = bad_range;
memwrite(guest_buf, buf, 2 * sizeof(uint64_t));
status = send_dma_request(CMD_DSM, 0, 1, prdt,
ARRAY_SIZE(prdt), NULL);
g_assert_cmphex(status, ==, BM_STS_INTR);
assert_bit_set(qpci_io_readb(dev, ide_bar, reg_status), ERR);
assert_bit_set(qpci_io_readb(dev, ide_bar, reg_error), ABRT);
free_pci_device(dev);
g_free(buf);
}
static void test_bmdma_short_prdt(void)
{
QPCIDevice *dev;
@ -963,6 +1033,7 @@ int main(int argc, char **argv)
qtest_add_func("/ide/bmdma/setup", test_bmdma_setup);
qtest_add_func("/ide/bmdma/simple_rw", test_bmdma_simple_rw);
qtest_add_func("/ide/bmdma/trim", test_bmdma_trim);
qtest_add_func("/ide/bmdma/short_prdt", test_bmdma_short_prdt);
qtest_add_func("/ide/bmdma/one_sector_short_prdt",
test_bmdma_one_sector_short_prdt);