From patchwork Wed Nov 6 19:20:54 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: 13865346 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 D15F320ADC2; Wed, 6 Nov 2024 19:21:09 +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=1730920871; cv=none; b=BxDpRUxNPGocv0nJr4kJNVuCae6hXb3fvoyRRn9vQ4UjSzBJnb+tIn54mryXEQ4WnKBqgu4vFwWZ2UbfdMj1gbLdYV+7vYDqIHmsSdHO8JR4acj0nkcv3zFtFeyd5iuBT+6ExuUb9w5fgmr2BoreKZTiFK6xm6evODb3UsCvGi0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730920871; c=relaxed/simple; bh=LsH6bLbkT8Oq6ZmvZizx30VKkaEZwigMJxQ/s5KiGZI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=D/11uTzlNd7Jf1RZTPolC78H5QkjorwoOkF0kZrh7qqCUYESLvvocC8cgKuV10GbJ45hYop012YvZiUiS+f9ICevmAp5KsSA/twvvbM4tQpjGjbPhpnL+bnT8WvDeaWnZpXSzy4WSTqA+yUlJ5mdLtYyDbMNaS7BeaSfvPbUtsU= 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=GDBTEGOq; 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="GDBTEGOq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730920870; x=1762456870; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LsH6bLbkT8Oq6ZmvZizx30VKkaEZwigMJxQ/s5KiGZI=; b=GDBTEGOq2zCH6eWd8RkKF6ctfloEZXW75XpAIMhiuEoEUQpe/bXeC2VQ H0D7vxm1g5O3RFrZCb+kyX/9wyl0Jf2M95ljnE/OuvQ0OOMtIx1APG5g5 Q1EszwTVrf0II8WjNVYO1/ymgKePuWkmtNF5vXZJfBjO9jPs8wAtDAlOs fe6L358cWDX7bCkvuJPe+hr25Yc1p0JzHzsCHBtW0UgdA72IFzdubGyPS uyGw7VpPm8xPD4K8HM7+a6yFjRVN+x+Pw53EkfB1owFqVH3JZ2ZZ0LKm8 MEbuIqLGGHxZ2lxAJGYef+rrqdH9dzm9EGj1t/Rct70jFKgYPA+B8Vu1w Q==; X-CSE-ConnectionGUID: 1hySFZrERAeXCXRaD+RLQg== X-CSE-MsgGUID: UiPVcdN9QdS311jYex45nA== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="41291946" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="41291946" 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 11:21:08 -0800 X-CSE-ConnectionGUID: 45D0axoXRkqG1lvhXbXrLQ== X-CSE-MsgGUID: I5t60IOLTB+NwG+Q6dcZ5A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,263,1725346800"; d="scan'208";a="88695369" Received: from unknown (HELO JF5300-B11A338T.jf.intel.com) ([10.242.51.115]) by fmviesa003.fm.intel.com with ESMTP; 06 Nov 2024 11:21:07 -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 02/13] crypto: iaa - Add an acomp_req flag CRYPTO_ACOMP_REQ_POLL to enable async mode. Date: Wed, 6 Nov 2024 11:20:54 -0800 Message-Id: <20241106192105.6731-3-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-kernel@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. 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 237f87000070..2edaecd42cc6 100644 --- a/drivers/crypto/intel/iaa/iaa_crypto_main.c +++ b/drivers/crypto/intel/iaa/iaa_crypto_main.c @@ -1510,6 +1510,10 @@ 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(); @@ -1702,6 +1706,7 @@ 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; @@ -1717,6 +1722,10 @@ 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); @@ -1765,7 +1774,7 @@ 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 ab0d9987bde1..5973f5f67954 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 /**