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crypto: inside-secure - Base CD fetchcount on actual CD FIFO size

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This patch derives the command descriptor fetch count from the actual
FIFO size advertised by the hardware. Fetching command descriptors
one at a time is a performance bottleneck for small blocks, especially
on hardware with multiple pipes. Even moreso if the HW has few rings.

Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Pascal van Leeuwen
2019-09-06 16:31:51 +02:00
committed by Herbert Xu
parent 4bdf712c30
commit 35c0e6c375
2 changed files with 48 additions and 10 deletions
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11
drivers/crypto/inside-secure/safexcel.h
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@@ -31,6 +31,7 @@
#define EIP197_MAX_TOKENS 18
#define EIP197_MAX_RINGS 4
#define EIP197_FETCH_COUNT 1
#define EIP197_FETCH_DEPTH 2
#define EIP197_MAX_BATCH_SZ 64
#define EIP197_GFP_FLAGS(base) ((base).flags & CRYPTO_TFM_REQ_MAY_SLEEP ? \
@@ -225,6 +226,14 @@
#define EIP197_N_PES_OFFSET 4
#define EIP197_N_PES_MASK GENMASK(4, 0)
#define EIP97_N_PES_MASK GENMASK(2, 0)
#define EIP197_HWDATAW_OFFSET 25
#define EIP197_HWDATAW_MASK GENMASK(3, 0)
#define EIP97_HWDATAW_MASK GENMASK(2, 0)
#define EIP197_CFSIZE_OFFSET 9
#define EIP197_CFSIZE_ADJUST 4
#define EIP97_CFSIZE_OFFSET 8
#define EIP197_CFSIZE_MASK GENMASK(3, 0)
#define EIP97_CFSIZE_MASK GENMASK(4, 0)
/* EIP197_HIA_AIC_R_ENABLE_CTRL */
#define EIP197_CDR_IRQ(n) BIT((n) * 2)
@@ -680,6 +689,8 @@ struct safexcel_hwconfig {
int hwver;
int hiaver;
int pever;
int hwdataw;
int hwcfsize;
};
struct safexcel_crypto_priv {