Currently, hash (SHA1/256/hmac) operation occasionally results
in an incorrect hash value. This is due to the premature reading
of the AUTH_IV register done before the last SHA block is processed.
There needs to be enough delay (wait states) before the AUTH_IV
register is read to extract the hash value.
The current implementation has 2 wait states. Adding 2 more wait states
for hash operations, resolves the issue.
The wait states are calculated based on the inputs from the hardware
team with regards to the time taken to process the last block of 16
bytes of the data packet.
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Change-Id: I82936441429560e41f25a98994d49a0113eb8de2
Signed-off-by: Neha Pandey <nehap@codeaurora.org>
Add new register definitions for QCE5.0 Hardware
Add new HAL (qce50.c) for interfacing with CE 5.0 hardware:
-- Implement the new interface to BAM (instead of data mover).
-- Add support for multiple Pipes.
-- Add support for use of HW key.
Change-Id: I69dc3993f607553d4752f9f9fb4fdfe1a09a6345
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Incorrect HMAC values are generated in following scenarios.
- In case of a single transfer with a packet shorter than the
block size, the HMAC generated is incorrect. This is due to
the "FIRST" bit in AUTH_CFG register not being set. When calling
HMAC_final for a transfer with a single packet (with no prior HMAC
updates), the "FIRST" and "LAST" bit in AUTH_CFG register needs to
be set. Currently FIRST bit is being cleared incorrectly for all
scenarios.
- In a scenario of a mac key input larger than block size, the key
needs to be hashed. The key hashing operation is crashing. This is
due to a NULL, unintialized pointer to the device handle. This is
fixed by intializing the pointer correctly. Further more, key size
is uninitialized, resulting in corruption of buffer.
Change-Id: Iec736f2130e509fcaf631a2c71c5483514666617
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Add device tree support for qcedev and qcrypto device drivers.
Add documentations for associated bindings.
Change-Id: Ib76986af5d9e30263a559329acbca401ec3304d2
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
