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[RFC,v1,06/13] crypto: iaa - Disable iaa_verify_compress by default.

Message ID 20241018064101.336232-7-kanchana.p.sridhar@intel.com
State Superseded
Headers show
Series zswap IAA compress batching | expand

Commit Message

Sridhar, Kanchana P Oct. 18, 2024, 6:40 a.m. UTC 
This patch makes it easier for IAA hardware acceleration in the iaa_crypto
driver to be loaded by default with "iaa_verify_compress" disabled, to
facilitate performance comparisons with software compressors (which also
do not run compress verification by default). Earlier, iaa_crypto compress
verification used to be enabled by default.

With this patch, if users want to enable compress verification, they can do
so with these steps:

  1) disable all the IAA device/wq bindings that happen at boot time
  2) rmmod iaa_crypto
  3) modprobe iaa_crypto
  4) echo 1 > /sys/bus/dsa/drivers/crypto/verify_compress
  5) re-run initialization of the IAA devices and wqs

Signed-off-by: Kanchana P Sridhar <kanchana.p.sridhar@intel.com>
---
 drivers/crypto/intel/iaa/iaa_crypto_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/intel/iaa/iaa_crypto_main.c
index 6c262b1eb09d..8e6859c97970 100644
--- a/drivers/crypto/intel/iaa/iaa_crypto_main.c
+++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c
@@ -94,7 +94,7 @@  static bool iaa_crypto_enabled;
 static bool iaa_crypto_registered;
 
 /* Verify results of IAA compress or not */
-static bool iaa_verify_compress = true;
+static bool iaa_verify_compress = false;
 
 static ssize_t verify_compress_show(struct device_driver *driver, char *buf)
 {