From patchwork Wed Aug 28 20:06:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 13781791 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id F30E51AC420; Wed, 28 Aug 2024 20:06:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724875575; cv=none; b=MAoxCsFleIRyn7hjQbpIENAY3BM3LDwTuOaYEH1wenM8fgP9YUiFHonCnS9TsZ+jdnQoMNAzTk2w90X1+ZtZnU7p81hygcgVzRawBBSwDk+BzWmi42NkN77TrrqOFesqycy4ihGK8FTAEKpKaSra+Fmqt/SXge2aUFnxNkZtN7M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724875575; c=relaxed/simple; bh=J1qs/ro+twN/vVxYemNkev8UgQgfYYIICyG0CgtOkRU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=AG8hd0XXwNBjx8jZVXMuK/0b64r++t7LwTJzQ6nQaBQV2FRRECX0A0aQzkiTJIdLRuUU/kfVCL80szojYjVIUfC21JYc+gVXRPvP9lVhoLkYBPIz0mEwzGLYPk3xWTq8uNNtBMvK4ivdSL44N8iUCq3QS5hoNS/7oOHt6fEwXag= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linuxonhyperv.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linuxonhyperv.com header.i=@linuxonhyperv.com header.b=YyQglwG7; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linuxonhyperv.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxonhyperv.com header.i=@linuxonhyperv.com header.b="YyQglwG7" Received: by linux.microsoft.com (Postfix, from userid 1202) id 937A520B7123; Wed, 28 Aug 2024 13:06:13 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 937A520B7123 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1724875573; bh=BjQepWccjey31JOFXVuSi9lL1FsxjDBdDvU2ED0CBOM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To:From; b=YyQglwG7AJhnbVEdCjDuBK+f/tFj5b+f0NMbTHQhiYKIN+9QvdluFjhQJeBKoIf/Y cRQQtPhx7lbDh2QREmh7ES48h36ft9xc4Lr0Pfr/wKFhRa+4Cxmu9/covsDnNVxylu m254ZOm5IWpk4rTx0Efhl4Pn2KPGEDM4PPuB++K4= From: longli@linuxonhyperv.com To: Jason Gunthorpe , Leon Romanovsky , Ajay Sharma , Konstantin Taranov , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-rdma@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Long Li , stable@vger.kernel.org Subject: [PATCH net] RDMA/mana_ib: use the correct page size for mapping user-mode doorbell page Date: Wed, 28 Aug 2024 13:06:09 -0700 Message-Id: <1724875569-12912-2-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1724875569-12912-1-git-send-email-longli@linuxonhyperv.com> References: <1724875569-12912-1-git-send-email-longli@linuxonhyperv.com> Reply-To: longli@microsoft.com Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: From: Long Li When mapping doorbell page from user-mode, the driver should use the system page size as the doorbell is allocated via mmap() from user-mode. Cc: stable@vger.kernel.org Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter") Signed-off-by: Long Li --- drivers/infiniband/hw/mana/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c index f68f54aea820..b26c4ebec2e0 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -511,13 +511,13 @@ int mana_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) PAGE_SHIFT; prot = pgprot_writecombine(vma->vm_page_prot); - ret = rdma_user_mmap_io(ibcontext, vma, pfn, gc->db_page_size, prot, + ret = rdma_user_mmap_io(ibcontext, vma, pfn, PAGE_SIZE, prot, NULL); if (ret) ibdev_dbg(ibdev, "can't rdma_user_mmap_io ret %d\n", ret); else ibdev_dbg(ibdev, "mapped I/O pfn 0x%llx page_size %u, ret %d\n", - pfn, gc->db_page_size, ret); + pfn, PAGE_SIZE, ret); return ret; }