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From: Kanchana P Sridhar <kanchana.p.sridhar@intel.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	hannes@cmpxchg.org, yosryahmed@google.com, nphamcs@gmail.com,
	chengming.zhou@linux.dev, usamaarif642@gmail.com,
	ryan.roberts@arm.com, ying.huang@intel.com, 21cnbao@gmail.com,
	akpm@linux-foundation.org, linux-crypto@vger.kernel.org,
	herbert@gondor.apana.org.au, davem@davemloft.net,
	clabbe@baylibre.com, ardb@kernel.org, ebiggers@google.com,
	surenb@google.com, kristen.c.accardi@intel.com,
	zanussi@kernel.org
Cc: wajdi.k.feghali@intel.com, vinodh.gopal@intel.com,
	kanchana.p.sridhar@intel.com
Subject: [PATCH v2 05/13] crypto: iaa - Disable iaa_verify_compress by default.
Date: Sat,  2 Nov 2024 20:21:03 -0700	[thread overview]
Message-ID: <20241103032111.333282-6-kanchana.p.sridhar@intel.com> (raw)
In-Reply-To: <20241103032111.333282-1-kanchana.p.sridhar@intel.com>

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(-)

diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/intel/iaa/iaa_crypto_main.c
index 13f9d22811ff..c4b143dd1ddd 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)
 {
-- 
2.27.0



  parent reply	other threads:[~2024-11-03  3:21 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-03  3:20 [PATCH v2 00/13] zswap IAA compress batching Kanchana P Sridhar
2024-11-03  3:20 ` [PATCH v2 01/13] crypto: acomp - Define two new interfaces for compress/decompress batching Kanchana P Sridhar
2024-11-15 11:32   ` Herbert Xu
2024-11-15 21:16     ` Sridhar, Kanchana P
2024-11-03  3:21 ` [PATCH v2 02/13] crypto: iaa - Add an acomp_req flag CRYPTO_ACOMP_REQ_POLL to enable async mode Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 03/13] crypto: iaa - Implement compress/decompress batching API in iaa_crypto Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 04/13] crypto: iaa - Make async mode the default Kanchana P Sridhar
2024-11-03  3:21 ` Kanchana P Sridhar [this message]
2024-11-03  3:21 ` [PATCH v2 06/13] crypto: iaa - Change cpu-to-iaa mappings to evenly balance cores to IAAs Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 07/13] crypto: iaa - Distribute compress jobs to all IAA devices on a NUMA node Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 08/13] mm: zswap: acomp_ctx mutex lock/unlock optimizations Kanchana P Sridhar
2024-11-03 10:57   ` kernel test robot
2024-11-03  3:21 ` [PATCH v2 09/13] mm: zswap: Modify struct crypto_acomp_ctx to be configurable in nr of acomp_reqs Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 10/13] mm: zswap: Add a per-cpu "acomp_batch_ctx" to struct zswap_pool Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 11/13] mm: zswap: Allocate acomp_batch_ctx resources for a given zswap_pool Kanchana P Sridhar
2024-11-03  3:21 ` [PATCH v2 12/13] mm: Add sysctl vm.compress-batching switch for compress batching during swapout Kanchana P Sridhar
2024-11-03  9:03   ` kernel test robot
2024-11-03 10:25   ` kernel test robot
2024-11-03  3:21 ` [PATCH v2 13/13] mm: zswap: Compress batching with Intel IAA in zswap_store() of large folios Kanchana P Sridhar
2024-11-04  8:31   ` Dan Carpenter
2024-11-04 18:29     ` Sridhar, Kanchana P

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