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Groups > linux.kernel > #1294064
| From | Cyrille Pitchen <cyrille.pitchen@atmel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 22/24] crypto: atmel-aes: change the DMA threshold |
| Date | 2015-12-17 18:20 +0100 |
| Message-ID | <qGKnE-2nS-5@gated-at.bofh.it> (permalink) |
| References | <qGJUB-1Y1-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Increase the DMA threshold to 256: PIO accesses offer better performances
than the DMA when processing small amounts of data.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
---
drivers/crypto/atmel-aes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index a34919f6b7d7..ea645b4ee997 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -76,7 +76,7 @@
#define ATMEL_AES_QUEUE_LENGTH 50
-#define ATMEL_AES_DMA_THRESHOLD 16
+#define ATMEL_AES_DMA_THRESHOLD 256
struct atmel_aes_caps {
--
1.8.2.2
--
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[PATCH 00/24] crypto: atmel-aes: global rework of the driver Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 17:50 +0100 [PATCH 02/24] crypto: atmel-aes: constify value argument of atmel_aes_write_n() Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 17:50 +0100 [PATCH 01/24] crypto: atmel-aes: add new version Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 17:50 +0100 [PATCH 06/24] crypto: atmel-aes: propagate error from atmel_aes_hw_version_init() Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 11/24] crypto: atmel-aes: rework crypto request completion Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 08/24] crypto: atmel-aes: make crypto request queue management more generic Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 14/24] crypto: atmel-aes: remove useless AES_FLAGS_DMA flag Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 15/24] crypto: atmel-aes: fix atmel_aes_remove() Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 10/24] crypto: atmel-aes: simplify the configuration of the AES IP Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 13/24] crypto: atmel-aes: reduce latency of DMA completion Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 07/24] crypto: atmel-aes: change atmel_aes_write_ctrl() signature Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 12/24] crypto: atmel-aes: remove unused 'err' member of struct atmel_aes_dev Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 09/24] crypto: atmel-aes: remove useless write in the Control Register Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:00 +0100 [PATCH 18/24] crypto: atmel-aes: fix typo and indentation Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 22/24] crypto: atmel-aes: change the DMA threshold Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 20/24] crypto: atmel-aes: fix atmel-ctr-aes driver for RFC 3686 Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 23/24] crypto: atmel-aes: add support to GCM mode Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 16/24] crypto: atmel-aes: improve performances of data transfer Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 24/24] crypto: atmel-aes: add debug facilities to monitor register accesses. Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 19/24] crypto: atmel-aes: create sections to regroup functions by usage Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 21/24] crypto: atmel-aes: fix the counter overflow in CTR mode Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 [PATCH 17/24] crypto: atmel-aes: use SIZE_IN_WORDS() helper macro Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-12-17 18:20 +0100 Re: [PATCH 00/24] crypto: atmel-aes: global rework of the driver Herbert Xu <herbert@gondor.apana.org.au> - 2015-12-23 11:30 +0100
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