ioat3: xor self test
This adds a hardware specific self test to be called from ioat_probe. In the ioat3 case we will have tests for all the different raid operations, while ioat1 and ioat2 will continue to just test memcpy. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
parent
b094ad3be5
commit
9de6fc717b
|
|
@ -799,7 +799,7 @@ static void __devinit ioat_dma_test_callback(void *dma_async_param)
|
|||
* ioat_dma_self_test - Perform a IOAT transaction to verify the HW works.
|
||||
* @device: device to be tested
|
||||
*/
|
||||
static int __devinit ioat_dma_self_test(struct ioatdma_device *device)
|
||||
int __devinit ioat_dma_self_test(struct ioatdma_device *device)
|
||||
{
|
||||
int i;
|
||||
u8 *src;
|
||||
|
|
@ -1039,7 +1039,7 @@ int __devinit ioat_probe(struct ioatdma_device *device)
|
|||
if (err)
|
||||
goto err_setup_interrupts;
|
||||
|
||||
err = ioat_dma_self_test(device);
|
||||
err = device->self_test(device);
|
||||
if (err)
|
||||
goto err_self_test;
|
||||
|
||||
|
|
@ -1197,6 +1197,7 @@ int __devinit ioat1_dma_probe(struct ioatdma_device *device, int dca)
|
|||
|
||||
device->intr_quirk = ioat1_intr_quirk;
|
||||
device->enumerate_channels = ioat1_enumerate_channels;
|
||||
device->self_test = ioat_dma_self_test;
|
||||
dma = &device->common;
|
||||
dma->device_prep_dma_memcpy = ioat1_dma_prep_memcpy;
|
||||
dma->device_issue_pending = ioat1_dma_memcpy_issue_pending;
|
||||
|
|
|
|||
|
|
@ -62,10 +62,10 @@
|
|||
* @enumerate_channels: hw version specific channel enumeration
|
||||
* @cleanup_tasklet: select between the v2 and v3 cleanup routines
|
||||
* @timer_fn: select between the v2 and v3 timer watchdog routines
|
||||
* @self_test: hardware version specific self test for each supported op type
|
||||
*
|
||||
* Note: the v3 cleanup routine supports raid operations
|
||||
*/
|
||||
|
||||
struct ioatdma_device {
|
||||
struct pci_dev *pdev;
|
||||
void __iomem *reg_base;
|
||||
|
|
@ -80,6 +80,7 @@ struct ioatdma_device {
|
|||
int (*enumerate_channels)(struct ioatdma_device *device);
|
||||
void (*cleanup_tasklet)(unsigned long data);
|
||||
void (*timer_fn)(unsigned long data);
|
||||
int (*self_test)(struct ioatdma_device *device);
|
||||
};
|
||||
|
||||
struct ioat_chan_common {
|
||||
|
|
@ -313,6 +314,7 @@ static inline void ioat_unmap(struct pci_dev *pdev, dma_addr_t addr, size_t len,
|
|||
int __devinit ioat_probe(struct ioatdma_device *device);
|
||||
int __devinit ioat_register(struct ioatdma_device *device);
|
||||
int __devinit ioat1_dma_probe(struct ioatdma_device *dev, int dca);
|
||||
int __devinit ioat_dma_self_test(struct ioatdma_device *device);
|
||||
void __devexit ioat_dma_remove(struct ioatdma_device *device);
|
||||
struct dca_provider * __devinit ioat_dca_init(struct pci_dev *pdev,
|
||||
void __iomem *iobase);
|
||||
|
|
|
|||
|
|
@ -836,6 +836,7 @@ int __devinit ioat2_dma_probe(struct ioatdma_device *device, int dca)
|
|||
device->enumerate_channels = ioat2_enumerate_channels;
|
||||
device->cleanup_tasklet = ioat2_cleanup_tasklet;
|
||||
device->timer_fn = ioat2_timer_event;
|
||||
device->self_test = ioat_dma_self_test;
|
||||
dma = &device->common;
|
||||
dma->device_prep_dma_memcpy = ioat2_dma_prep_memcpy_lock;
|
||||
dma->device_issue_pending = ioat2_issue_pending;
|
||||
|
|
|
|||
|
|
@ -513,6 +513,280 @@ ioat3_prep_xor_val(struct dma_chan *chan, dma_addr_t *src,
|
|||
src_cnt - 1, len, flags);
|
||||
}
|
||||
|
||||
static void __devinit ioat3_dma_test_callback(void *dma_async_param)
|
||||
{
|
||||
struct completion *cmp = dma_async_param;
|
||||
|
||||
complete(cmp);
|
||||
}
|
||||
|
||||
#define IOAT_NUM_SRC_TEST 6 /* must be <= 8 */
|
||||
static int __devinit ioat_xor_val_self_test(struct ioatdma_device *device)
|
||||
{
|
||||
int i, src_idx;
|
||||
struct page *dest;
|
||||
struct page *xor_srcs[IOAT_NUM_SRC_TEST];
|
||||
struct page *xor_val_srcs[IOAT_NUM_SRC_TEST + 1];
|
||||
dma_addr_t dma_srcs[IOAT_NUM_SRC_TEST + 1];
|
||||
dma_addr_t dma_addr, dest_dma;
|
||||
struct dma_async_tx_descriptor *tx;
|
||||
struct dma_chan *dma_chan;
|
||||
dma_cookie_t cookie;
|
||||
u8 cmp_byte = 0;
|
||||
u32 cmp_word;
|
||||
u32 xor_val_result;
|
||||
int err = 0;
|
||||
struct completion cmp;
|
||||
unsigned long tmo;
|
||||
struct device *dev = &device->pdev->dev;
|
||||
struct dma_device *dma = &device->common;
|
||||
|
||||
dev_dbg(dev, "%s\n", __func__);
|
||||
|
||||
if (!dma_has_cap(DMA_XOR, dma->cap_mask))
|
||||
return 0;
|
||||
|
||||
for (src_idx = 0; src_idx < IOAT_NUM_SRC_TEST; src_idx++) {
|
||||
xor_srcs[src_idx] = alloc_page(GFP_KERNEL);
|
||||
if (!xor_srcs[src_idx]) {
|
||||
while (src_idx--)
|
||||
__free_page(xor_srcs[src_idx]);
|
||||
return -ENOMEM;
|
||||
}
|
||||
}
|
||||
|
||||
dest = alloc_page(GFP_KERNEL);
|
||||
if (!dest) {
|
||||
while (src_idx--)
|
||||
__free_page(xor_srcs[src_idx]);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Fill in src buffers */
|
||||
for (src_idx = 0; src_idx < IOAT_NUM_SRC_TEST; src_idx++) {
|
||||
u8 *ptr = page_address(xor_srcs[src_idx]);
|
||||
for (i = 0; i < PAGE_SIZE; i++)
|
||||
ptr[i] = (1 << src_idx);
|
||||
}
|
||||
|
||||
for (src_idx = 0; src_idx < IOAT_NUM_SRC_TEST; src_idx++)
|
||||
cmp_byte ^= (u8) (1 << src_idx);
|
||||
|
||||
cmp_word = (cmp_byte << 24) | (cmp_byte << 16) |
|
||||
(cmp_byte << 8) | cmp_byte;
|
||||
|
||||
memset(page_address(dest), 0, PAGE_SIZE);
|
||||
|
||||
dma_chan = container_of(dma->channels.next, struct dma_chan,
|
||||
device_node);
|
||||
if (dma->device_alloc_chan_resources(dma_chan) < 1) {
|
||||
err = -ENODEV;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* test xor */
|
||||
dest_dma = dma_map_page(dev, dest, 0, PAGE_SIZE, DMA_FROM_DEVICE);
|
||||
for (i = 0; i < IOAT_NUM_SRC_TEST; i++)
|
||||
dma_srcs[i] = dma_map_page(dev, xor_srcs[i], 0, PAGE_SIZE,
|
||||
DMA_TO_DEVICE);
|
||||
tx = dma->device_prep_dma_xor(dma_chan, dest_dma, dma_srcs,
|
||||
IOAT_NUM_SRC_TEST, PAGE_SIZE,
|
||||
DMA_PREP_INTERRUPT);
|
||||
|
||||
if (!tx) {
|
||||
dev_err(dev, "Self-test xor prep failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
async_tx_ack(tx);
|
||||
init_completion(&cmp);
|
||||
tx->callback = ioat3_dma_test_callback;
|
||||
tx->callback_param = &cmp;
|
||||
cookie = tx->tx_submit(tx);
|
||||
if (cookie < 0) {
|
||||
dev_err(dev, "Self-test xor setup failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
dma->device_issue_pending(dma_chan);
|
||||
|
||||
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
|
||||
|
||||
if (dma->device_is_tx_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
|
||||
dev_err(dev, "Self-test xor timed out\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
dma_sync_single_for_cpu(dev, dest_dma, PAGE_SIZE, DMA_FROM_DEVICE);
|
||||
for (i = 0; i < (PAGE_SIZE / sizeof(u32)); i++) {
|
||||
u32 *ptr = page_address(dest);
|
||||
if (ptr[i] != cmp_word) {
|
||||
dev_err(dev, "Self-test xor failed compare\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
}
|
||||
dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_TO_DEVICE);
|
||||
|
||||
/* skip validate if the capability is not present */
|
||||
if (!dma_has_cap(DMA_XOR_VAL, dma_chan->device->cap_mask))
|
||||
goto free_resources;
|
||||
|
||||
/* validate the sources with the destintation page */
|
||||
for (i = 0; i < IOAT_NUM_SRC_TEST; i++)
|
||||
xor_val_srcs[i] = xor_srcs[i];
|
||||
xor_val_srcs[i] = dest;
|
||||
|
||||
xor_val_result = 1;
|
||||
|
||||
for (i = 0; i < IOAT_NUM_SRC_TEST + 1; i++)
|
||||
dma_srcs[i] = dma_map_page(dev, xor_val_srcs[i], 0, PAGE_SIZE,
|
||||
DMA_TO_DEVICE);
|
||||
tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs,
|
||||
IOAT_NUM_SRC_TEST + 1, PAGE_SIZE,
|
||||
&xor_val_result, DMA_PREP_INTERRUPT);
|
||||
if (!tx) {
|
||||
dev_err(dev, "Self-test zero prep failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
async_tx_ack(tx);
|
||||
init_completion(&cmp);
|
||||
tx->callback = ioat3_dma_test_callback;
|
||||
tx->callback_param = &cmp;
|
||||
cookie = tx->tx_submit(tx);
|
||||
if (cookie < 0) {
|
||||
dev_err(dev, "Self-test zero setup failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
dma->device_issue_pending(dma_chan);
|
||||
|
||||
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
|
||||
|
||||
if (dma->device_is_tx_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
|
||||
dev_err(dev, "Self-test validate timed out\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
if (xor_val_result != 0) {
|
||||
dev_err(dev, "Self-test validate failed compare\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
/* skip memset if the capability is not present */
|
||||
if (!dma_has_cap(DMA_MEMSET, dma_chan->device->cap_mask))
|
||||
goto free_resources;
|
||||
|
||||
/* test memset */
|
||||
dma_addr = dma_map_page(dev, dest, 0,
|
||||
PAGE_SIZE, DMA_FROM_DEVICE);
|
||||
tx = dma->device_prep_dma_memset(dma_chan, dma_addr, 0, PAGE_SIZE,
|
||||
DMA_PREP_INTERRUPT);
|
||||
if (!tx) {
|
||||
dev_err(dev, "Self-test memset prep failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
async_tx_ack(tx);
|
||||
init_completion(&cmp);
|
||||
tx->callback = ioat3_dma_test_callback;
|
||||
tx->callback_param = &cmp;
|
||||
cookie = tx->tx_submit(tx);
|
||||
if (cookie < 0) {
|
||||
dev_err(dev, "Self-test memset setup failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
dma->device_issue_pending(dma_chan);
|
||||
|
||||
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
|
||||
|
||||
if (dma->device_is_tx_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
|
||||
dev_err(dev, "Self-test memset timed out\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
for (i = 0; i < PAGE_SIZE/sizeof(u32); i++) {
|
||||
u32 *ptr = page_address(dest);
|
||||
if (ptr[i]) {
|
||||
dev_err(dev, "Self-test memset failed compare\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
}
|
||||
|
||||
/* test for non-zero parity sum */
|
||||
xor_val_result = 0;
|
||||
for (i = 0; i < IOAT_NUM_SRC_TEST + 1; i++)
|
||||
dma_srcs[i] = dma_map_page(dev, xor_val_srcs[i], 0, PAGE_SIZE,
|
||||
DMA_TO_DEVICE);
|
||||
tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs,
|
||||
IOAT_NUM_SRC_TEST + 1, PAGE_SIZE,
|
||||
&xor_val_result, DMA_PREP_INTERRUPT);
|
||||
if (!tx) {
|
||||
dev_err(dev, "Self-test 2nd zero prep failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
async_tx_ack(tx);
|
||||
init_completion(&cmp);
|
||||
tx->callback = ioat3_dma_test_callback;
|
||||
tx->callback_param = &cmp;
|
||||
cookie = tx->tx_submit(tx);
|
||||
if (cookie < 0) {
|
||||
dev_err(dev, "Self-test 2nd zero setup failed\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
dma->device_issue_pending(dma_chan);
|
||||
|
||||
tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
|
||||
|
||||
if (dma->device_is_tx_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
|
||||
dev_err(dev, "Self-test 2nd validate timed out\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
if (xor_val_result != SUM_CHECK_P_RESULT) {
|
||||
dev_err(dev, "Self-test validate failed compare\n");
|
||||
err = -ENODEV;
|
||||
goto free_resources;
|
||||
}
|
||||
|
||||
free_resources:
|
||||
dma->device_free_chan_resources(dma_chan);
|
||||
out:
|
||||
src_idx = IOAT_NUM_SRC_TEST;
|
||||
while (src_idx--)
|
||||
__free_page(xor_srcs[src_idx]);
|
||||
__free_page(dest);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int __devinit ioat3_dma_self_test(struct ioatdma_device *device)
|
||||
{
|
||||
int rc = ioat_dma_self_test(device);
|
||||
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
rc = ioat_xor_val_self_test(device);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int __devinit ioat3_dma_probe(struct ioatdma_device *device, int dca)
|
||||
{
|
||||
struct pci_dev *pdev = device->pdev;
|
||||
|
|
@ -526,6 +800,7 @@ int __devinit ioat3_dma_probe(struct ioatdma_device *device, int dca)
|
|||
device->enumerate_channels = ioat2_enumerate_channels;
|
||||
device->cleanup_tasklet = ioat3_cleanup_tasklet;
|
||||
device->timer_fn = ioat3_timer_event;
|
||||
device->self_test = ioat3_dma_self_test;
|
||||
dma = &device->common;
|
||||
dma->device_prep_dma_memcpy = ioat2_dma_prep_memcpy_lock;
|
||||
dma->device_issue_pending = ioat2_issue_pending;
|
||||
|
|
|
|||
Reference in New Issue