diff options
| author | Harvijay Saini <harvijayx.saini@intel.com> | 2015-12-09 11:59:45 -0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-11 22:55:16 +0800 |
| commit | 06cabd755a97325cd5f53e73153fd10f4ea51cb7 (patch) | |
| tree | 7f4b372fd31e1f63eb30f430796bed56a32f5469 /drivers/crypto | |
| parent | e14a1f1e36e76580c1094694f2f666ac582b34df (diff) | |
| download | linux-06cabd755a97325cd5f53e73153fd10f4ea51cb7.tar.bz2 | |
crypto: qat - ring returning retry even though ring has BW
When many threads submit multiple requests they get blocked until all
responses are processed, which prevents them from submitting more requests
even though there is space on the rings.
To fix this we need to decrement the inflight counter early to in the callback.
Signed-off-by: Harvijay Saini <harvijayx.saini@intel.com>
Signed-off-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_transport.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_transport.c b/drivers/crypto/qat/qat_common/adf_transport.c index eff00cd282e5..a6f3766a74f0 100644 --- a/drivers/crypto/qat/qat_common/adf_transport.c +++ b/drivers/crypto/qat/qat_common/adf_transport.c @@ -141,6 +141,7 @@ static int adf_handle_response(struct adf_etr_ring_data *ring) while (*msg != ADF_RING_EMPTY_SIG) { ring->callback((uint32_t *)msg); + atomic_dec(ring->inflights); *msg = ADF_RING_EMPTY_SIG; ring->head = adf_modulo(ring->head + ADF_MSG_SIZE_TO_BYTES(ring->msg_size), @@ -148,12 +149,10 @@ static int adf_handle_response(struct adf_etr_ring_data *ring) msg_counter++; msg = (uint32_t *)((uintptr_t)ring->base_addr + ring->head); } - if (msg_counter > 0) { + if (msg_counter > 0) WRITE_CSR_RING_HEAD(ring->bank->csr_addr, ring->bank->bank_number, ring->ring_number, ring->head); - atomic_sub(msg_counter, ring->inflights); - } return 0; } |