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| author | Allan, Bruce W <bruce.w.allan@intel.com> | 2015-01-09 11:55:14 -0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-01-13 22:30:46 +1100 |
| commit | a6bcc1e443420f370881ec0b38aea636c1bf71c7 (patch) | |
| tree | 9d58699df2f9d5adab25db18e0e1a3c7084df10c /drivers/crypto | |
| parent | fd98d692bb2bdd22f76bf1449df7131cefddccae (diff) | |
| download | linux-a6bcc1e443420f370881ec0b38aea636c1bf71c7.tar.gz linux-a6bcc1e443420f370881ec0b38aea636c1bf71c7.tar.bz2 linux-a6bcc1e443420f370881ec0b38aea636c1bf71c7.zip | |
crypto: qat - use pci_wait_for_pending_transaction()
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@intel.com>
Acked-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_aer.c | 17 |
1 files 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 740dc9e1c70c..fa1fef824de2 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); |