Issue is with the digest appended feature on QAT PMD.
A workaround is also documented.
Signed-off-by: Fiona Trahe
Acked-by: John McNamara
---
v2
- fixed trailing whitespace checkpatch errors
doc/guides/rel_notes/release_16_11.rst | 13 -
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/doc/guides/rel_notes/release_16_11.rst
b/doc/guides/rel_notes/release_16_11.rst
index 365b5a3..5f925b5 100644
--- a/doc/guides/rel_notes/release_16_11.rst
+++ b/doc/guides/rel_notes/release_16_11.rst
@@ -213,7 +213,18 @@ Known Issues
Therefore, in order to use L3fwd-power, vector mode should be disabled
from the config file.
-
+* **Digest address must be supplied for crypto auth operation on QAT PMD.**
+
+ The cryptodev API specifies that if the rte_crypto_sym_op.digest.data field,
+ and by inference the digest.phys_addr field which points to the same
location,
+ is not set for an auth operation the driver is to understand that the digest
+ result is located immediately following the region over which the digest is
+ computed. The QAT PMD doesn't correctly handle this case and reads and writes
+ to an incorrect location.
+
+ Callers can workaround this by always supplying the digest virtual and
+ physical address fields in the rte_crypto_sym_op for an auth operation.
+
API Changes
---
--
2.5.0
