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Commit 7f77f5a4 authored by Antoine Tenart's avatar Antoine Tenart Committed by Herbert Xu
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crypto: inside-secure - handle more result requests when counter is full 



This patch modifies the result handling logic to continue handling
results when the completed requests counter is full and not showing the
actual number of requests to handle.

Suggested-by: default avatarOfer Heifetz <oferh@marvell.com>
Signed-off-by: default avatarAntoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 2313e9f7

drivers/crypto/inside-secure/safexcel.c

+12 −3
Original line number Diff line number Diff line
@@ -600,12 +600,15 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv 
{

	struct safexcel_request *sreq;

	struct safexcel_context *ctx;

	int ret, i, nreq, ndesc = 0, tot_descs = 0, done;

	int ret, i, nreq, ndesc, tot_descs, done;

	bool should_complete;



handle_results:

	tot_descs = 0;



	nreq = readl(priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT);

	nreq >>= 24;

	nreq &= GENMASK(6, 0);

	nreq >>= EIP197_xDR_PROC_xD_PKT_OFFSET;

	nreq &= EIP197_xDR_PROC_xD_PKT_MASK;

	if (!nreq)

		goto requests_left;
@@ -642,6 +645,12 @@ static inline void safexcel_handle_result_descriptor(struct safexcel_crypto_priv 
		       priv->base + EIP197_HIA_RDR(ring) + EIP197_HIA_xDR_PROC_COUNT);

	}



	/* If the number of requests overflowed the counter, try to proceed more

	 * requests.

	 */

	if (nreq == EIP197_xDR_PROC_xD_PKT_MASK)

		goto handle_results;



requests_left:

	spin_lock_bh(&priv->ring[ring].egress_lock);

drivers/crypto/inside-secure/safexcel.h

+2 −0
Original line number Diff line number Diff line
@@ -117,6 +117,8 @@ 
#define EIP197_xDR_PREP_CLR_COUNT		BIT(31)



/* EIP197_HIA_xDR_PROC_COUNT */

#define EIP197_xDR_PROC_xD_PKT_OFFSET		24

#define EIP197_xDR_PROC_xD_PKT_MASK		GENMASK(6, 0)

#define EIP197_xDR_PROC_xD_COUNT(n)		((n) << 2)

#define EIP197_xDR_PROC_xD_PKT(n)		((n) << 24)

#define EIP197_xDR_PROC_CLR_COUNT		BIT(31)