From patchwork Wed Nov 6 19:20:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sridhar, Kanchana P" X-Patchwork-Id: 841152 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B28C207A16; Wed, 6 Nov 2024 19:21:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730920870; cv=none; b=L9MrydFK9m/h3LlXUGUd9dOpr95zAFQ87XLN7ZeE3dRFCOQbsAzlO48O2DD0xh71JUDgJKihcbryABVeTWEnL3Nqt5jq/6Uv/qI4Zz8Rcl8PR2iIgcKI6pzqjQtqDv5mjHRDeAk/3sKhHjkf0G+vpYpU6xpn7FJy+AKy4iq/fgY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730920870; c=relaxed/simple; bh=8jyV13JKHn0vIl+wBpuhM8EZ+NN4RHEftxJMCaIna00=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=m1/ZolQ3nLTzE2bYixzbtzECgizpOn52itL7J2y6fbvki9BMrJ0tE3cP7oP7DudRVKktwFgzo0O8C4q1bwP2GZOp7Eo2swmJGCd99SD4RCEL6Y4wAqv4XFVfP66o2yO91WNl2opnuZA0xld0EVF1YQpAKL0MZ9casI/fihJEH1Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=i12ueRiK; arc=none smtp.client-ip=198.175.65.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="i12ueRiK" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730920869; x=1762456869; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8jyV13JKHn0vIl+wBpuhM8EZ+NN4RHEftxJMCaIna00=; b=i12ueRiKEzsuHtoKOBMsMhW52m33V8zrBJzfRCB9nx8QbQpVITuBgssV QYmqvJAuLGgzN65wRjsG7Oxvaa7wDp7i2L5h3Rrm4LkMHeVd9bn01weeK 4Jfo0HmPH/S7APMY81uHVZyKoNFFCaJs7rs9Kiqb7Kw/kNHaQ4gY1sFeV jOvxkd6knDbn2oGCXMeKxjnkE/05bxvtE5hEor9NPdB5u0QGNjtgUMKpW 2tfTuEmbbQOzthL8p0+FeK6bAF2/Y9bXgf+5zMNX69zKu8YmfFxZkXTge 12sSnwAZZ2c/w056ML0q2KMkFyjlkwVqEUsqnNDuQ6O5xwjCzU/G38V1K A==; X-CSE-ConnectionGUID: yJy8s8MgTJ2NAz6yJBjzuw== X-CSE-MsgGUID: o6mLaOb9RT2s1FhpCfp2Yg== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="41291933" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="41291933" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Nov 2024 11:21:07 -0800 X-CSE-ConnectionGUID: 7GLWqB4ETRmTzg1kJtlu0g== X-CSE-MsgGUID: NcmQoX70Qnihkta38JlJxQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,263,1725346800"; d="scan'208";a="88695359" Received: from unknown (HELO JF5300-B11A338T.jf.intel.com) ([10.242.51.115]) by fmviesa003.fm.intel.com with ESMTP; 06 Nov 2024 11:21:06 -0800 From: Kanchana P Sridhar 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 v3 01/13] crypto: acomp - Define two new interfaces for compress/decompress batching. Date: Wed, 6 Nov 2024 11:20:53 -0800 Message-Id: <20241106192105.6731-2-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20241106192105.6731-1-kanchana.p.sridhar@intel.com> References: <20241106192105.6731-1-kanchana.p.sridhar@intel.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This commit adds batch_compress() and batch_decompress() interfaces to: struct acomp_alg struct crypto_acomp This allows the iaa_crypto Intel IAA driver to register implementation for batch_compress() and batch_decompress() API, that can subsequently be invoked from the kernel zswap/zram swap modules to compress/decompress up to CRYPTO_BATCH_SIZE (i.e. 8) pages in parallel in the IAA hardware accelerator to improve swapout/swapin performance. Signed-off-by: Kanchana P Sridhar --- crypto/acompress.c | 2 + include/crypto/acompress.h | 82 +++++++++++++++++++++++++++++ include/crypto/internal/acompress.h | 16 ++++++ 3 files changed, 100 insertions(+) diff --git a/crypto/acompress.c b/crypto/acompress.c index 6fdf0ff9f3c0..a506db499a37 100644 --- a/crypto/acompress.c +++ b/crypto/acompress.c @@ -71,6 +71,8 @@ static int crypto_acomp_init_tfm(struct crypto_tfm *tfm) acomp->compress = alg->compress; acomp->decompress = alg->decompress; + acomp->batch_compress = alg->batch_compress; + acomp->batch_decompress = alg->batch_decompress; acomp->dst_free = alg->dst_free; acomp->reqsize = alg->reqsize; diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h index 54937b615239..ab0d9987bde1 100644 --- a/include/crypto/acompress.h +++ b/include/crypto/acompress.h @@ -37,12 +37,20 @@ struct acomp_req { void *__ctx[] CRYPTO_MINALIGN_ATTR; }; +/* + * The max compress/decompress batch size, for crypto algorithms + * that support batch_compress and batch_decompress API. + */ +#define CRYPTO_BATCH_SIZE 8UL + /** * struct crypto_acomp - user-instantiated objects which encapsulate * algorithms and core processing logic * * @compress: Function performs a compress operation * @decompress: Function performs a de-compress operation + * @batch_compress: Function performs a batch compress operation + * @batch_decompress: Function performs a batch decompress operation * @dst_free: Frees destination buffer if allocated inside the * algorithm * @reqsize: Context size for (de)compression requests @@ -51,6 +59,20 @@ struct acomp_req { struct crypto_acomp { int (*compress)(struct acomp_req *req); int (*decompress)(struct acomp_req *req); + void (*batch_compress)(struct acomp_req *reqs[], + struct crypto_wait *wait, + struct page *pages[], + u8 *dsts[], + unsigned int dlens[], + int errors[], + int nr_pages); + void (*batch_decompress)(struct acomp_req *reqs[], + struct crypto_wait *wait, + u8 *srcs[], + struct page *pages[], + unsigned int slens[], + int errors[], + int nr_pages); void (*dst_free)(struct scatterlist *dst); unsigned int reqsize; struct crypto_tfm base; @@ -265,4 +287,64 @@ static inline int crypto_acomp_decompress(struct acomp_req *req) return crypto_acomp_reqtfm(req)->decompress(req); } +/** + * crypto_acomp_batch_compress() -- compress a batch of requests + * + * Function invokes the batch compress operation + * + * @reqs: @nr_pages asynchronous compress requests. + * @wait: crypto_wait for synchronous acomp batch compress. If NULL, the + * driver must provide a way to process completions asynchronously. + * @pages: Pages to be compressed. + * @dsts: Pre-allocated destination buffers to store results of compression. + * @dlens: Will contain the compressed lengths. + * @errors: zero on successful compression of the corresponding + * req, or error code in case of error. + * @nr_pages: The number of pages, up to CRYPTO_BATCH_SIZE, + * to be compressed. + */ +static inline void crypto_acomp_batch_compress(struct acomp_req *reqs[], + struct crypto_wait *wait, + struct page *pages[], + u8 *dsts[], + unsigned int dlens[], + int errors[], + int nr_pages) +{ + struct crypto_acomp *tfm = crypto_acomp_reqtfm(reqs[0]); + + return tfm->batch_compress(reqs, wait, pages, dsts, + dlens, errors, nr_pages); +} + +/** + * crypto_acomp_batch_decompress() -- decompress a batch of requests + * + * Function invokes the batch decompress operation + * + * @reqs: @nr_pages asynchronous decompress requests. + * @wait: crypto_wait for synchronous acomp batch decompress. If NULL, the + * driver must provide a way to process completions asynchronously. + * @srcs: The src buffers to be decompressed. + * @pages: The pages to store the decompressed buffers. + * @slens: Compressed lengths of @srcs. + * @errors: zero on successful compression of the corresponding + * req, or error code in case of error. + * @nr_pages: The number of pages, up to CRYPTO_BATCH_SIZE, + * to be decompressed. + */ +static inline void crypto_acomp_batch_decompress(struct acomp_req *reqs[], + struct crypto_wait *wait, + u8 *srcs[], + struct page *pages[], + unsigned int slens[], + int errors[], + int nr_pages) +{ + struct crypto_acomp *tfm = crypto_acomp_reqtfm(reqs[0]); + + return tfm->batch_decompress(reqs, wait, srcs, pages, + slens, errors, nr_pages); +} + #endif diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h index 8831edaafc05..acfe2d9d5a83 100644 --- a/include/crypto/internal/acompress.h +++ b/include/crypto/internal/acompress.h @@ -17,6 +17,8 @@ * * @compress: Function performs a compress operation * @decompress: Function performs a de-compress operation + * @batch_compress: Function performs a batch compress operation + * @batch_decompress: Function performs a batch decompress operation * @dst_free: Frees destination buffer if allocated inside the algorithm * @init: Initialize the cryptographic transformation object. * This function is used to initialize the cryptographic @@ -37,6 +39,20 @@ struct acomp_alg { int (*compress)(struct acomp_req *req); int (*decompress)(struct acomp_req *req); + void (*batch_compress)(struct acomp_req *reqs[], + struct crypto_wait *wait, + struct page *pages[], + u8 *dsts[], + unsigned int dlens[], + int errors[], + int nr_pages); + void (*batch_decompress)(struct acomp_req *reqs[], + struct crypto_wait *wait, + u8 *srcs[], + struct page *pages[], + unsigned int slens[], + int errors[], + int nr_pages); void (*dst_free)(struct scatterlist *dst); int (*init)(struct crypto_acomp *tfm); void (*exit)(struct crypto_acomp *tfm);