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| author |   Marco Chiappero <marco.chiappero@intel.com> | 2021-12-16 09:13:23 +0000 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2021-12-24 14:18:25 +1100 |
| commit | 6f87979129d10cff5b4b0b49343720b99b5357b8 (patch) | |
| tree | 9d05f5d659a5ccf3c293e58c0809a4cee1e95112 /drivers/crypto/qat/qat_common/adf_pfvf_utils.h | |
| parent | crypto: qat - leverage read_poll_timeout in PFVF send (diff) | |
| download | linux-dev-6f87979129d10cff5b4b0b49343720b99b5357b8.tar.xz linux-dev-6f87979129d10cff5b4b0b49343720b99b5357b8.zip | |
crypto: qat - improve the ACK timings in PFVF send
Review the ACK timings in adf_gen2_pfvf_send() to improve the latency
by reducing the polling interval. Also increase the timeout, for higher
tolerance in highly loaded systems, and reposition these new values to
allow for inclusion by the future GEN4 devices too.
Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Co-developed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_pfvf_utils.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_pfvf_utils.h b/drivers/crypto/qat/qat_common/adf_pfvf_utils.h index 7b73b5992d03..7676fdddbe26 100644 --- a/drivers/crypto/qat/qat_common/adf_pfvf_utils.h +++ b/drivers/crypto/qat/qat_common/adf_pfvf_utils.h @@ -6,6 +6,10 @@ #include <linux/types.h> #include "adf_pfvf_msg.h" +/* How long to wait for far side to acknowledge receipt */ +#define ADF_PFVF_MSG_ACK_DELAY_US 4 +#define ADF_PFVF_MSG_ACK_MAX_DELAY_US (1 * USEC_PER_SEC) + struct pfvf_field_format { u8 offset; u32 mask; |