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crypto: qat - detect PFVF collision after ACK
[ Upstream commit 9b768e8 ] Detect a PFVF collision between the local and the remote function by checking if the message on the PFVF CSR has been overwritten. This is done after the remote function confirms that the message has been received, by clearing the interrupt bit, or the maximum number of attempts (ADF_IOV_MSG_ACK_MAX_RETRY) to check the CSR has been exceeded. Fixes: ed8ccae ("crypto: qat - Add support for SRIOV") Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Co-developed-by: Marco Chiappero <marco.chiappero@intel.com> Signed-off-by: Marco Chiappero <marco.chiappero@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
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