From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11C67C43214 for ; Thu, 2 Sep 2021 05:35:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D50AF60FC0 for ; Thu, 2 Sep 2021 05:35:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D50AF60FC0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=GDBe7zU6gQbX9KL3OhX56h6eNt9IexNvlGUB2q7Kq3c=; b=rmTwLeupWG8ZYJ 6XE99/kvfE85J6AqhBs6Lq3TaXU9nfp5GfDr0Ez1IRDc3kGCLIKU5kMXPqC6ZqeTgP6wD9SIQFwV3 i13aq1Ttnu1/ZvZ4XwTLlFvDV0wUeweMqde40GluBo/Z4epDEXvWU+7nMQ2XXCCXHUNTFuvdcH9L9 +/Ohl7tBpoXdnTAN2FapHpcBdvuI6wLWLOUFlxRcTUmMiHB9EjVzJfqA8qUZo455d9gdQw0zldUYK tmZouZIu0TXILSUIdWBB+eLTFAmPDxMgOh7m6g5Z9RbklkIPb71JTuX1fsq5Ch2XJsK7DVbfWJcFE 2qBRix2BfMk8/EFMLqrA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mLfNZ-008Z7A-Vc; Thu, 02 Sep 2021 05:35:13 +0000 Received: from so254-9.mailgun.net ([198.61.254.9]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mLfNS-008Ytm-Tz for ath11k@lists.infradead.org; Thu, 02 Sep 2021 05:35:12 +0000 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1630560908; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=9gSGz8zPNFyGR2n0P44qKCJtAumjLBinCPzX+XYq2GQ=; b=etp+Y9RBDG+ZJi15dIaGqH2TYfNyp8vO4mcRA/ottKHkwLD5ZX7Pbu3yt8cO7s/3McuYfm4V TIsAUSSQ7AKfrmpv/JOaopxvlWHwUOeEtLd2K9YCA3HITjQrRZ9ibJqANDWJ9Y855zC7K+bR vo98j4O2YtWE0gs+r0tDBJY4UvU= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyJmOGQ2ZiIsICJhdGgxMWtAbGlzdHMuaW5mcmFkZWFkLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-west-2.postgun.com with SMTP id 6130628897222b4b5b13b8bc (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Thu, 02 Sep 2021 05:35:04 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8EE14C43616; Thu, 2 Sep 2021 05:35:04 +0000 (UTC) Received: from ppranees-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: ppranees) by smtp.codeaurora.org (Postfix) with ESMTPSA id CF9E7C4361A; Thu, 2 Sep 2021 05:35:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org CF9E7C4361A Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: P Praneesh To: kvalo@codeaurora.org Cc: ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, P Praneesh , Sriram R , Jouni Malinen Subject: [PATCH v3 09/12] ath11k: remove mod operator in dst ring processing Date: Thu, 2 Sep 2021 11:03:37 +0530 Message-Id: <1630560820-21905-10-git-send-email-ppranees@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1630560820-21905-1-git-send-email-ppranees@codeaurora.org> References: <1630560820-21905-1-git-send-email-ppranees@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210901_223508_458601_2BD62D21 X-CRM114-Status: GOOD ( 12.30 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org Replace use of mod operator with a manual wrap around to avoid additional cost of using mod operation. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2 Co-developed-by: Sriram R Signed-off-by: Sriram R Signed-off-by: Jouni Malinen Signed-off-by: P Praneesh --- drivers/net/wireless/ath/ath11k/hal.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c index f04edaf..7cf9e23 100644 --- a/drivers/net/wireless/ath/ath11k/hal.c +++ b/drivers/net/wireless/ath/ath11k/hal.c @@ -654,8 +654,11 @@ u32 *ath11k_hal_srng_dst_get_next_entry(struct ath11k_base *ab, desc = srng->ring_base_vaddr + srng->u.dst_ring.tp; - srng->u.dst_ring.tp = (srng->u.dst_ring.tp + srng->entry_size) % - srng->ring_size; + srng->u.dst_ring.tp += srng->entry_size; + + /* wrap around to start of ring*/ + if (srng->u.dst_ring.tp == srng->ring_size) + srng->u.dst_ring.tp = 0; /* Try to prefetch the next descriptor in the ring */ if (srng->flags & HAL_SRNG_FLAGS_CACHED) -- 2.7.4 -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k