v2 -> v3:
- Jason suggested that spliting the first patch into two part:
1, using private buffer
2, remove the busy polling
Rework as Jason's suggestion, this makes the smaller change in
each one and clear.
v1 -> v2:
- Use kfree instead of kfree_sensitive for insensitive buffer.
- Several coding style fix.
- Use memory from current node, instead of memory close to device
- Add more message in commit, also explain why removing per-device
request buffer.
- Add necessary comment in code to explain why using kzalloc to
allocate struct virtio_crypto_ctrl_request.
v1:
The main point of this series is to improve the performance for
virtio crypto:
- Use wait mechanism instead of busy polling for ctrl queue, this
reduces CPU and lock racing, it's possiable to create/destroy session
parallelly, QPS increases from ~40K/s to ~200K/s.
- Enable retry on crypto engine to improve performance for data queue,
this allows the larger depth instead of 1.
- Fix dst data length in akcipher service.
- Other style fix.
lei he (2):
virtio-crypto: adjust dst_len at ops callback
virtio-crypto: enable retry for virtio-crypto-dev
zhenwei pi (3):
virtio-crypto: use private buffer for control request
virtio-crypto: wait ctrl queue instead of busy polling
virtio-crypto: move helpers into virtio_crypto_common.c
drivers/crypto/virtio/Makefile | 1 +
.../virtio/virtio_crypto_akcipher_algs.c | 95 ++++++-------
drivers/crypto/virtio/virtio_crypto_common.c | 92 ++++++++++++
drivers/crypto/virtio/virtio_crypto_common.h | 29 +++-
drivers/crypto/virtio/virtio_crypto_core.c | 37 +----
.../virtio/virtio_crypto_skcipher_algs.c | 133 ++++++++----------
6 files changed, 226 insertions(+), 161 deletions(-)
create mode 100644 drivers/crypto/virtio/virtio_crypto_common.c
--
2.20.1
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