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=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 C0634C282C7 for ; Sat, 26 Jan 2019 08:52:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B4B6218F0 for ; Sat, 26 Jan 2019 08:52:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="JalG4qrG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726999AbfAZIwa (ORCPT ); Sat, 26 Jan 2019 03:52:30 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:34681 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726122AbfAZIwa (ORCPT ); Sat, 26 Jan 2019 03:52:30 -0500 Received: by mail-pf1-f194.google.com with SMTP id h3so5835007pfg.1; Sat, 26 Jan 2019 00:52:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=GMa9ParM+bD6Sxu5NaqN2juAjxA5hsNmjLgl/k+rpkI=; b=JalG4qrGqvUPH9+5lhETDQdhHZ3NFc0C4ThxIbIQx6HZ+eNnfI3YkAljjuuVco5ng3 Dg0k5au2lenCtawzQpL3YcpV85yAN6KKHiF09M2jcUDg6Pi0xJU3IKPLjTZvgblg/GfI 5X8Y+ZEeKaBALJ1L6F8mMm0YnD0GNKVqTFNLs9IaMO4ftsdfr7Pd4h8xMQQ2mi1HUSQO YlxGG4VmaBo9c8JGhDL6N+jlaplAtZBDAU5KkqAYHuSSEu7Ei6wvJtIi/MjxAKnvvyP9 ZW9kkbVxhf8fFAzr4Ai48OA+ARkPkY4s6JOxt4vs0UnjtM3YnpgewzClt36+Qw740atw E5cA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=GMa9ParM+bD6Sxu5NaqN2juAjxA5hsNmjLgl/k+rpkI=; b=E+X/ifhtC7QBkTmuztT/j7VwO0Kn1u2E/GECzVLgx6LhEGLqA6BS9mwvXxJZndMaxj GANGrqtIc/B+3XFjSxC/qzfN81O13D84Q8RNBKQLZiuah5dL704/JpBYfKWT9MAipsN9 RN3mVSskdjjv3TjjXYOsiEbIUWo4FMzsbGZgKFx4faMKzmb2gNU9RAODv428Au6/5UZ4 xO9XEHdxnyPfxz1haRLZrL9jgAz+dbykrbDzPVyCtgDWDplqSfyXDpHqEp/7Pkou9WFI tmolpM2rZpHQvxATUK4jCc9/hZ1+IFwlV/iQydGm+ZTm0f/hCNGONDGZJpoAVfzt7pAC zY4w== X-Gm-Message-State: AJcUukf3vPcvKIe/4W+lk7gGsRlIHC5kBUvFhCtC/FNcU6N0s76c/gBK oeBBcxuOwpHKS26MFRsHDY8= X-Google-Smtp-Source: ALg8bN7yi+1mhhReb8ToOkB5X9mUSTTJeouzvwv2Z9SMDInMLwrR9Fn567r/mMEi6SQIAsf820zjgw== X-Received: by 2002:a63:235f:: with SMTP id u31mr12813956pgm.122.1548492749638; Sat, 26 Jan 2019 00:52:29 -0800 (PST) Received: from m-hyperV (50-47-89-76.evrt.wa.frontiernet.net. [50.47.89.76]) by smtp.gmail.com with ESMTPSA id 78sm41732320pft.184.2019.01.26.00.52.28 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sat, 26 Jan 2019 00:52:28 -0800 (PST) Date: Sat, 26 Jan 2019 00:52:28 -0800 From: Maya Nakamura To: lorenzo.pieralisi@arm.com, bhelgaas@google.com, linux-pci@vger.kernel.org, kys@microsoft.com, sthemmin@microsoft.com, olaf@aepfle.de, apw@canonical.com, jasowang@redhat.com, mikelley@microsoft.com, Alexander.Levin@microsoft.com Cc: linux-kernel@vger.kernel.org, driverdev-devel@linuxdriverproject.org, haiyangz@microsoft.com, vkuznets@redhat.com, marcelo.cerri@canonical.com Subject: [PATCH v2 1/2] PCI: hv: Replace hv_vp_set with hv_vpset Message-ID: <2fa660dc51189316590021c4ee8aeaac79b8270f.1548489092.git.m.maya.nakamura@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remove a duplicate definition of VP set (hv_vp_set) and use the common definition (hv_vpset) that is used in other places. Change the order of the members in struct hv_pcibus_device so that the declaration of retarget_msi_interrupt_params is the last member. Struct hv_vpset, which contains a flexible array, is nested two levels deep in struct hv_pcibus_device via retarget_msi_interrupt_params. Add a comment that retarget_msi_interrupt_params should be the last member of struct hv_pcibus_device. Signed-off-by: Maya Nakamura --- Change in v2: - None drivers/pci/controller/pci-hyperv.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index 9ba4d12c179c..da8b58d8630d 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -393,12 +393,6 @@ struct hv_interrupt_entry { #define HV_VP_SET_BANK_COUNT_MAX 5 /* current implementation limit */ -struct hv_vp_set { - u64 format; /* 0 (HvGenericSetSparse4k) */ - u64 valid_banks; - u64 masks[HV_VP_SET_BANK_COUNT_MAX]; -}; - /* * flags for hv_device_interrupt_target.flags */ @@ -410,7 +404,7 @@ struct hv_device_interrupt_target { u32 flags; union { u64 vp_mask; - struct hv_vp_set vp_set; + struct hv_vpset vp_set; }; }; @@ -460,12 +454,16 @@ struct hv_pcibus_device { struct msi_controller msi_chip; struct irq_domain *irq_domain; - /* hypercall arg, must not cross page boundary */ - struct retarget_msi_interrupt retarget_msi_interrupt_params; - spinlock_t retarget_msi_interrupt_lock; struct workqueue_struct *wq; + + /* hypercall arg, must not cross page boundary */ + struct retarget_msi_interrupt retarget_msi_interrupt_params; + + /* + * Don't put anything here: retarget_msi_interrupt_params must be last + */ }; /* @@ -955,12 +953,13 @@ static void hv_irq_unmask(struct irq_data *data) */ params->int_target.flags |= HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET; - params->int_target.vp_set.valid_banks = + params->int_target.vp_set.valid_bank_mask = (1ull << HV_VP_SET_BANK_COUNT_MAX) - 1; /* * var-sized hypercall, var-size starts after vp_mask (thus - * vp_set.format does not count, but vp_set.valid_banks does). + * vp_set.format does not count, but vp_set.valid_bank_mask + * does). */ var_size = 1 + HV_VP_SET_BANK_COUNT_MAX; @@ -974,7 +973,7 @@ static void hv_irq_unmask(struct irq_data *data) goto exit_unlock; } - params->int_target.vp_set.masks[cpu_vmbus / 64] |= + params->int_target.vp_set.bank_contents[cpu_vmbus / 64] |= (1ULL << (cpu_vmbus & 63)); } } else { -- 2.17.1