From patchwork Mon Jan 11 18:07:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Loic Poulain X-Patchwork-Id: 12011351 X-Patchwork-Delegate: kuba@kernel.org 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 6B175C433E9 for ; Mon, 11 Jan 2021 18:01:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 49C4422BF3 for ; Mon, 11 Jan 2021 18:01:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390099AbhAKSA4 (ORCPT ); Mon, 11 Jan 2021 13:00:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389777AbhAKSAz (ORCPT ); Mon, 11 Jan 2021 13:00:55 -0500 Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [IPv6:2a00:1450:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DACA7C06179F for ; Mon, 11 Jan 2021 10:00:08 -0800 (PST) Received: by mail-wr1-x430.google.com with SMTP id d13so651567wrc.13 for ; Mon, 11 Jan 2021 10:00:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Hzqb7q+hCD/lNO+yAqM3iVZkO0rtWj2v+FJjuf+pTrs=; b=hZIh7sgU6+OWulN4iAr/CSGMYEVlRNUWfrhwvHqyX+9uB5/UXXgHZCYIrq/R1wdrnL dx5Mw80y2Lmog+E7nU93dYmdS7Bt7aXshIvtzR1/CpFPqMAlq8s5NQFSLETZhnAe+Nw/ AfM5Cz6ivbeUIXYotBm4aaVIWA1CAQmA547mi7wwRdFFA3FZECyttjIrzMUHapD6vMu6 GVNaHXxShKIrTUTL5wJd36oiI+ehGbqafCSs03J0IK4GxGH+nMWfSBCVlqiQXnqg9SMO a6L7pequbilhvqR8JCRoSo34i3MhVBDiG/77knTbDjL2340l00lNSJQujGz6gsYtuvcc A9OQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Hzqb7q+hCD/lNO+yAqM3iVZkO0rtWj2v+FJjuf+pTrs=; b=pVSucXlzNGTQ37+HbgoGnd+tbmSR94/6Lwpy1B9hHaB14OCG/Cv0o3KCfaF4D9DAhW oOvdMzPj67sMRUIwefSLQjqA3CnFvZLPTyoQnB6784OR62AS9g21ZJyyJLu8pwAAQ/Y/ KT5U4y30/MDjJyD19a+giD957F4UmxEs9cTyZxcydWejfeKN+ZzkrsTKS/Cly/Y4Vdsy DGjKKlq/dfki7EcTvpYLh6OUHkt/WCwnHzZbDet+l0BDhuWCNedKwN4tef3jDz8PvVUV F77EC5IdL4OK3Zo8ggrJIJ95EAIWMEIKyjWONOXie5WcDYjS0nT/8IxYgPmZsktto3jk RTCQ== X-Gm-Message-State: AOAM532RUFfS70CVgey/XB+bxGnR4vtZsxh2Qc3dNE4dzOWTfANt2wS2 kCEgOR4+u0aktMFoGT3OkH+/Kg== X-Google-Smtp-Source: ABdhPJzBnCL1cadHeT+qcud0r1WtPCyJdKFEtr18jPtmmL6y3tlUv8AiYQmcEaa1eTDWmEBYVevA7Q== X-Received: by 2002:adf:c6c4:: with SMTP id c4mr324727wrh.348.1610388007564; Mon, 11 Jan 2021 10:00:07 -0800 (PST) Received: from localhost.localdomain ([88.122.66.28]) by smtp.gmail.com with ESMTPSA id s12sm77662wmh.29.2021.01.11.10.00.06 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Jan 2021 10:00:07 -0800 (PST) From: Loic Poulain To: kuba@kernel.org, davem@davemloft.net Cc: netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, manivannan.sadhasivam@linaro.org, Loic Poulain Subject: [PATCH net-next 2/3] net: mhi: Get RX queue size from MHI core Date: Mon, 11 Jan 2021 19:07:41 +0100 Message-Id: <1610388462-16322-2-git-send-email-loic.poulain@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1610388462-16322-1-git-send-email-loic.poulain@linaro.org> References: <1610388462-16322-1-git-send-email-loic.poulain@linaro.org> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org The RX queue size can be determined at runtime by retrieving the number of available transfer descriptors. Signed-off-by: Loic Poulain --- drivers/net/mhi_net.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/mhi_net.c b/drivers/net/mhi_net.c index b7f7f2e..3da820b 100644 --- a/drivers/net/mhi_net.c +++ b/drivers/net/mhi_net.c @@ -257,9 +257,6 @@ static int mhi_net_probe(struct mhi_device *mhi_dev, mhi_netdev->mdev = mhi_dev; SET_NETDEV_DEV(ndev, &mhi_dev->dev); - /* All MHI net channels have 128 ring elements (at least for now) */ - mhi_netdev->rx_queue_sz = 128; - INIT_DELAYED_WORK(&mhi_netdev->rx_refill, mhi_net_rx_refill_work); u64_stats_init(&mhi_netdev->stats.rx_syncp); u64_stats_init(&mhi_netdev->stats.tx_syncp); @@ -269,6 +266,9 @@ static int mhi_net_probe(struct mhi_device *mhi_dev, if (err) goto out_err; + /* Number of transfer descriptors determines size of the queue */ + mhi_netdev->rx_queue_sz = mhi_get_free_desc_count(mhi_dev, DMA_FROM_DEVICE); + err = register_netdev(ndev); if (err) goto out_err;