Prior to resetting the hardware, use pci_wait_for_pending_transaction()
instead of open coding similar functionality.
Signed-off-by: Bruce Allan <bruce.w.allan@xxxxxxxxx>
Acked-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
---
drivers/crypto/qat/qat_common/adf_aer.c | 17 ++---------------
1 file changed, 2 insertions(+), 15 deletions(-)
diff --git a/drivers/crypto/qat/qat_common/adf_aer.c b/drivers/crypto/qat/qat_common/adf_aer.c
index 740dc9e..fa1fef8 100644
--- a/drivers/crypto/qat/qat_common/adf_aer.c
+++ b/drivers/crypto/qat/qat_common/adf_aer.c
@@ -82,28 +82,15 @@ struct adf_reset_dev_data {
struct work_struct reset_work;
};
-#define PPDSTAT_OFFSET 0x7E
static void adf_dev_restore(struct adf_accel_dev *accel_dev)
{
struct pci_dev *pdev = accel_to_pci_dev(accel_dev);
struct pci_dev *parent = pdev->bus->self;
- uint16_t ppdstat = 0, bridge_ctl = 0;
- int pending = 0;
+ uint16_t bridge_ctl = 0;
pr_info("QAT: Resetting device qat_dev%d\n", accel_dev->accel_id);
- pci_read_config_word(pdev, PPDSTAT_OFFSET, &ppdstat);
- pending = ppdstat & PCI_EXP_DEVSTA_TRPND;
- if (pending) {
- int ctr = 0;
-
- do {
- msleep(100);
- pci_read_config_word(pdev, PPDSTAT_OFFSET, &ppdstat);
- pending = ppdstat & PCI_EXP_DEVSTA_TRPND;
- } while (pending && ctr++ < 10);
- }
- if (pending)
+ if (!pci_wait_for_pending_transaction(pdev))
pr_info("QAT: Transaction still in progress. Proceeding\n");
pci_read_config_word(parent, PCI_BRIDGE_CONTROL, &bridge_ctl);
--
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