From patchwork Mon May 4 23:53:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 1283142 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=dhtEwmdY; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49GKT84yMFz9sRf for ; Tue, 5 May 2020 09:54:20 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728433AbgEDXxw (ORCPT ); Mon, 4 May 2020 19:53:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728182AbgEDXxv (ORCPT ); Mon, 4 May 2020 19:53:51 -0400 Received: from mail-qt1-x841.google.com (mail-qt1-x841.google.com [IPv6:2607:f8b0:4864:20::841]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1C47C061A0F for ; Mon, 4 May 2020 16:53:51 -0700 (PDT) Received: by mail-qt1-x841.google.com with SMTP id b1so599599qtt.1 for ; Mon, 04 May 2020 16:53:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=uU5L3mTKQu7zv3TIEEDa+1AYyusenBY7XS77GDMeGtU=; b=dhtEwmdYZyY0rRSaEhvfcNC1vITa/c/X54xRPc3E0yng8bUWygzhzNuicxUYw0p9wx Uc/YksC7AF7oeveIe8SZ9pqUUWT1luLkag9l0OUTeIostGlmXMBRCKw6CWhLwmbm7oQ8 fnuP9O0PS2qxUZvw3QSic2awNcaQdSn326lFZqZ+K89aplT1BDmde15uHh2AePrHezDh J32jKYW7mqwaHmgHHu4qHSyrrxmks45wybtVMZgvoK8uaH8ve2sLPQw0fD993jqhY9hX f5uunAV4vzbneq4GfLT+I33hcvhPkDQSuGdYqxqRgIRDhNgTUDc19EliQf1p8HFIsF/b bGBg== 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:mime-version :content-transfer-encoding; bh=uU5L3mTKQu7zv3TIEEDa+1AYyusenBY7XS77GDMeGtU=; b=nD5KkGDKqQe7tvA4JguivhezcyKFRG2Z4ep5DmgOITBq7Ngqn5JsMWIoZQwVOHdo7p BEqToj3+zaH2NnLPavrSysMKhYacZDOls0Pt1iOYIZ7cSMG/E8bMjYSQKuxtMwadGIe5 Uiw6+NDYX/HDCSEd6Dq9UetDGmgexClspILGkjnP4IWC/usTRXLEr8upYoIfrgzwkuJK Q+3vy3jAZ3kGNuochFS5+QuOVmA6N2i5ilPstcLWahOGG/ZHkkQj19ZMF3j5UJvBTWgN S+NKxU+DqDUWGUel5KrHT+rQq+WqRIVvV/l1Sg1Zl1hnzHFUvUvIpTjOi/Cp3X/aATUF 9OMA== X-Gm-Message-State: AGi0PuaoMp/4PHiCERe/dROYa5cV+IShRTdT4CnDjo+dYxgMLu/SP2HV aEPPOzhP8ZO0Uo0GvuvjhZvClw== X-Google-Smtp-Source: APiQypJO619AUMvWP6tjl8Otz6evwH1MBuUzxWXt92IyN7ElOczdcZodDUh4lgeHbyyZyfkO5hwADw== X-Received: by 2002:ac8:65d4:: with SMTP id t20mr36761qto.358.1588636430635; Mon, 04 May 2020 16:53:50 -0700 (PDT) Received: from beast.localdomain (c-73-185-129-58.hsd1.mn.comcast.net. [73.185.129.58]) by smtp.gmail.com with ESMTPSA id z18sm296004qti.47.2020.05.04.16.53.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 May 2020 16:53:50 -0700 (PDT) From: Alex Elder To: davem@davemloft.net Cc: evgreen@chromium.org, subashab@codeaurora.org, cpratapa@codeaurora.org, bjorn.andersson@linaro.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 0/5] net: ipa: kill endpoint stop workaround Date: Mon, 4 May 2020 18:53:40 -0500 Message-Id: <20200504235345.17118-1-elder@linaro.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org It turns out that a workaround that performs a small DMA operation between retried attempts to stop a GSI channel is not needed for any supported hardware. The hardware quirk that required the extra DMA operation was fixed after IPA v3.1. So this series gets rid of that workaround code, along with some other code that was only present to support it. NOTE: This series depends on (and includes/duplicates) another patch that has already been committed in the net tree: 713b6ebb4c37 net: ipa: fix a bug in ipa_endpoint_stop() -Alex Alex Elder (5): net: ipa: fix a bug in ipa_endpoint_stop() net: ipa: get rid of workaround in ipa_endpoint_stop() net: ipa: don't retry in ipa_endpoint_stop() net: ipa: kill ipa_endpoint_stop() net: ipa: kill ipa_cmd_dma_task_32b_addr_add() drivers/net/ipa/ipa_cmd.c | 59 ------------------------- drivers/net/ipa/ipa_cmd.h | 11 ----- drivers/net/ipa/ipa_endpoint.c | 80 +++------------------------------- drivers/net/ipa/ipa_endpoint.h | 2 - 4 files changed, 6 insertions(+), 146 deletions(-)