From patchwork Mon Mar 3 08:47:13 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kanchana P Sridhar X-Patchwork-Id: 869914 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (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 DF0BC1EE00F; Mon, 3 Mar 2025 08:47:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740991654; cv=none; b=e5AuKdHOJgFVLzcQIDtTK/iiZXp1bHEFwwiluLIySDcABfASFFESXmXjGDxsMHJUhqTSlRdu7e/yvSXQoQQVW6LFrgMrONlTk5O8jkczJ3vE+n2FOo4iTiyFeIqnOMQ/mGYv92AY20/ys3rwRuFYfPKl/rCFUBptStSzQ7Yp8IU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740991654; c=relaxed/simple; bh=8AO2hJSnLaCRd/8HtMcdHOYwB/zSpBOSifH5FW9w0Ms=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=JD4aeToMkDrhgxT6FCVdYBxdAMWAWoo+ARpT2QXoYcnpVeO4GcShktLUN/O7aonXnAh+EItv0ViaBXtmsCkIvjn1hSL7pE3a4sA4EfKEp3iGU+skVTJAWOZxipaUXoUL9AW7q5Zd/tJML6L7Q9nFmsM1Ivn5ok+xF3WH6xPoELQ= 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=gan4tHSV; arc=none smtp.client-ip=192.198.163.14 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="gan4tHSV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1740991653; x=1772527653; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8AO2hJSnLaCRd/8HtMcdHOYwB/zSpBOSifH5FW9w0Ms=; b=gan4tHSVnCuj8lqnKmX5E/1n3my8hT0Zw5/bADXPkrUryoDavj6WLCOI mbVa9tmuKD0GaSJC2veKaU6DsbhzFNJHyk/RDIgTbfVA4x59f5h1luenD XjezXiC46RX1JLtJU/8werS9emAtE336PO96o8kuyGeY/9Hm1lGJVE8XW xao8UyK9xbXGxZBtkTglN9iyufUA4ath69zbLrgNZSLA7iGR0/gHo6YIB VT+Htil/Qe2WB3GnYybofwUHb5a7HvCibiVtsohmBybK0dubU+bP+9JXf RZSlvXMU5+HA3wxvjf2k+ZEc1x8ohO+KrAl+75C5k2LSLsRrVbbzEddQ9 A==; X-CSE-ConnectionGUID: KmQn2fHnSh+jqrjvkhzpiQ== X-CSE-MsgGUID: QjfLb+f3TPqFcO0lrNIlTA== X-IronPort-AV: E=McAfee;i="6700,10204,11361"; a="42111881" X-IronPort-AV: E=Sophos;i="6.13,329,1732608000"; d="scan'208";a="42111881" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Mar 2025 00:47:29 -0800 X-CSE-ConnectionGUID: SLQFcck9SfqnDM3/EV2iXg== X-CSE-MsgGUID: STpS0GyCTU2r/TCFjJpTcg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,329,1732608000"; d="scan'208";a="118426771" Received: from jf5300-b11a338t.jf.intel.com ([10.242.51.115]) by fmviesa010.fm.intel.com with ESMTP; 03 Mar 2025 00:47:27 -0800 From: Kanchana P Sridhar To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org, yosry.ahmed@linux.dev, nphamcs@gmail.com, chengming.zhou@linux.dev, usamaarif642@gmail.com, ryan.roberts@arm.com, 21cnbao@gmail.com, ying.huang@linux.alibaba.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 Cc: wajdi.k.feghali@intel.com, vinodh.gopal@intel.com, kanchana.p.sridhar@intel.com Subject: [PATCH v8 03/14] crypto: iaa - Add an acomp_req flag CRYPTO_ACOMP_REQ_POLL to enable async mode. Date: Mon, 3 Mar 2025 00:47:13 -0800 Message-Id: <20250303084724.6490-4-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20250303084724.6490-1-kanchana.p.sridhar@intel.com> References: <20250303084724.6490-1-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 If the iaa_crypto driver has async_mode set to true, and use_irq set to false, it can still be forced to use synchronous mode by turning off the CRYPTO_ACOMP_REQ_POLL flag in req->flags. In other words, all three of the following need to be true for a request to be processed in fully async poll mode: 1) async_mode should be "true" 2) use_irq should be "false" 3) req->flags & CRYPTO_ACOMP_REQ_POLL should be "true" Suggested-by: Herbert Xu Signed-off-by: Kanchana P Sridhar --- drivers/crypto/intel/iaa/iaa_crypto_main.c | 11 ++++++++++- include/crypto/acompress.h | 5 +++++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/intel/iaa/iaa_crypto_main.c b/drivers/crypto/intel/iaa/iaa_crypto_main.c index c3776b0de51d..d7983ab3c34a 100644 --- a/drivers/crypto/intel/iaa/iaa_crypto_main.c +++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c @@ -1520,6 +1520,10 @@ static int iaa_comp_acompress(struct acomp_req *req) return -EINVAL; } + /* If the caller has requested no polling, disable async. */ + if (!(req->flags & CRYPTO_ACOMP_REQ_POLL)) + disable_async = true; + cpu = get_cpu(); wq = wq_table_next_wq(cpu); put_cpu(); @@ -1712,6 +1716,7 @@ static int iaa_comp_adecompress(struct acomp_req *req) { struct crypto_tfm *tfm = req->base.tfm; dma_addr_t src_addr, dst_addr; + bool disable_async = false; int nr_sgs, cpu, ret = 0; struct iaa_wq *iaa_wq; struct device *dev; @@ -1727,6 +1732,10 @@ static int iaa_comp_adecompress(struct acomp_req *req) return -EINVAL; } + /* If the caller has requested no polling, disable async. */ + if (!(req->flags & CRYPTO_ACOMP_REQ_POLL)) + disable_async = true; + if (!req->dst) return iaa_comp_adecompress_alloc_dest(req); @@ -1775,7 +1784,7 @@ static int iaa_comp_adecompress(struct acomp_req *req) req->dst, req->dlen, sg_dma_len(req->dst)); ret = iaa_decompress(tfm, req, wq, src_addr, req->slen, - dst_addr, &req->dlen, false); + dst_addr, &req->dlen, disable_async); if (ret == -EINPROGRESS) return ret; diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h index 147f184b6bea..afadf84f236d 100644 --- a/include/crypto/acompress.h +++ b/include/crypto/acompress.h @@ -14,6 +14,11 @@ #include #define CRYPTO_ACOMP_ALLOC_OUTPUT 0x00000001 +/* + * If set, the driver must have a way to submit the req, then + * poll its completion status for success/error. + */ +#define CRYPTO_ACOMP_REQ_POLL 0x00000002 #define CRYPTO_ACOMP_DST_MAX 131072 /**