From nobody Sun Dec 29 19:27:59 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1720047218; cv=none; d=zohomail.com; s=zohoarc; b=V9e7JxZ79PZYaXUm/UAGvYInpK0rg+TJhGDvvAx8K+UQZnoB8Lkvu/j4KRljvtjMuyOkBO6jm3mEW5vINnJbbhx58XIuQY77fX0IfWcnP2LFvJsuVfuJ0gktfroVOtLiYY7qqN5oM4kqsywz6hzYpuz45W3FNQDBb0y4tm2lGB4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1720047218; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=QuE+o0AC9wdLKXlzVTnODsdNe5/ti8zXK/7OKFfOYUM=; b=NlDutZeClFppkKbPta68BmvVnMUZ6veW+yuVGlw2/dPedyjYSaJtQf6rmLV+FshG92tmDK3w34EAHUX9sJ+rMLxfS02IYtQJYKkKubLDdYBHGveG2gztoQYAh97Ka61I7dbmKkSM0d//gQJqzH68oonKYullI15ecQ69lmdwOMk= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1720047218271244.54031760845703; Wed, 3 Jul 2024 15:53:38 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sP8kL-0008IL-EG; Wed, 03 Jul 2024 18:46:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sP8kI-0007sJ-2P for qemu-devel@nongnu.org; Wed, 03 Jul 2024 18:46:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sP8kG-0001Tq-Br for qemu-devel@nongnu.org; Wed, 03 Jul 2024 18:46:37 -0400 Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-520-J7qPAOdRPrCgyekVBHlzQA-1; Wed, 03 Jul 2024 18:46:32 -0400 Received: by mail-ej1-f72.google.com with SMTP id a640c23a62f3a-a72af18f571so1315566b.2 for ; Wed, 03 Jul 2024 15:46:32 -0700 (PDT) Received: from redhat.com ([2a0d:6fc7:441:91a8:a47d:5a9:c02f:92f2]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a77b784de44sm3449966b.56.2024.07.03.15.46.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jul 2024 15:46:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720046793; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QuE+o0AC9wdLKXlzVTnODsdNe5/ti8zXK/7OKFfOYUM=; b=AVSEF8+zEympD4adq/49z6PndipH/bK2ShYW90HyCz0FZ1AH9vGcOhxaB94FhX6VqT5Uqx +lFtyXoRQxum/LAuVpbQrVbo6hC9+kcr8STT2JFveHn8zbrHbxEwMglIfF34zM333yF11C Pnkd3hMKfWmtsH4Zzt1YKm1cyXmY1K0= X-MC-Unique: J7qPAOdRPrCgyekVBHlzQA-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720046790; x=1720651590; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=QuE+o0AC9wdLKXlzVTnODsdNe5/ti8zXK/7OKFfOYUM=; b=QT3IxG+kiS8dO0eVkMLxy+25Qd0zGyMQVSIiUtS96zxCdjgNKkHZC3skwe89znA27B DjoZLuVzwp1rUv9pnsyZaU6biLcT90ww/0mwiP+Ikh7ZT/V23mfGTyrShuLYgYZ2GJrS 51xFDHU3frpQBQk0cDvWD/xuNe6qnh9M5yC8sRlmxSSwgFXjy6/unki5qhPD1Xprvu/L AxJ8h5pQKwR04gwQ63FDCxnhcoXMBAwsHehjrdgjB+Q1syFLvzwKVyuK5sr2DM4trjNZ dFjqT00HKOTLyM3ZfcltyjVf0admApNl45j3Ebqxy9KTL2dPA09laCjsQPW/2cs3TmnX S3Gw== X-Gm-Message-State: AOJu0YxIXCWckOebS/vRKUlrNZso3WQIU+fbA9t8zXe8e3IHKYbpCYNu IcU65CL3RZ054ZLvy17SPmxxW0Q5qONhEXiGeSgyCmC0nlMgG1q+zrThtwe5C3S56AZchFcoSTA ILqxHxxkGncrbObbwQKR74p7DAptU+SObZ0SLcofYyguY/pKMzHKJeYneQ0Osk1M7ZC7gH3x3sw Uxj7oRPHLRpLBRk7/Mw5t17CUU2GCwKg== X-Received: by 2002:a17:907:a0b:b0:a72:676a:7d7b with SMTP id a640c23a62f3a-a751441efeamr955844366b.9.1720046790505; Wed, 03 Jul 2024 15:46:30 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGEyKXP6bb6bD/iXdL1BwzS94SOjMemi5MP7Q0Hg31DFAZ3L2cfv5s1yJQwcHez6O3fQsLXfg== X-Received: by 2002:a17:907:a0b:b0:a72:676a:7d7b with SMTP id a640c23a62f3a-a751441efeamr955841966b.9.1720046789432; Wed, 03 Jul 2024 15:46:29 -0700 (PDT) Date: Wed, 3 Jul 2024 18:46:24 -0400 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , Fan Ni , Svetly Todorov , Gregory Price , Jonathan Cameron Subject: [PULL v3 28/85] hw/cxl/cxl-mailbox-utils: Add superset extent release mailbox support Message-ID: <3083f018b59fd35b9ee993715694f967c49afeb1.1720046570.git.mst@redhat.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1720047219595100001 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Fan Ni With the change, we extend the extent release mailbox command processing to allow more flexible release. As long as the DPA range of the extent to release is covered by accepted extent(s) in the device, the release can be performed. Tested-by: Svetly Todorov Reviewed-by: Gregory Price Signed-off-by: Fan Ni Message-Id: <20240523174651.1089554-14-nifan.cxl@gmail.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/cxl/cxl-mailbox-utils.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index c4852112fe..74eeb6fde7 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -1704,6 +1704,13 @@ static CXLRetCode cxl_dc_extent_release_dry_run(CXLT= ype3Dev *ct3d, dpa =3D in->updated_entries[i].start_dpa; len =3D in->updated_entries[i].len; =20 + /* Check if the DPA range is not fully backed with valid extents */ + if (!ct3_test_region_block_backed(ct3d, dpa, len)) { + ret =3D CXL_MBOX_INVALID_PA; + goto free_and_exit; + } + + /* After this point, extent overflow is the only error can happen = */ while (len > 0) { QTAILQ_FOREACH(ent, updated_list, node) { range_init_nofail(&range, ent->start_dpa, ent->len); @@ -1718,14 +1725,7 @@ static CXLRetCode cxl_dc_extent_release_dry_run(CXLT= ype3Dev *ct3d, if (range_contains(&range, dpa + len - 1)) { len2 =3D ent_start_dpa + ent_len - dpa - len; } else { - /* - * TODO: we reject the attempt to remove an extent - * that overlaps with multiple extents in the devi= ce - * for now. We will allow it once superset release - * support is added. - */ - ret =3D CXL_MBOX_INVALID_PA; - goto free_and_exit; + dpa =3D ent_start_dpa + ent_len; } len_done =3D ent_len - len1 - len2; =20 @@ -1752,14 +1752,9 @@ static CXLRetCode cxl_dc_extent_release_dry_run(CXLT= ype3Dev *ct3d, } =20 len -=3D len_done; - /* len =3D=3D 0 here until superset release is added */ break; } } - if (len) { - ret =3D CXL_MBOX_INVALID_PA; - goto free_and_exit; - } } } free_and_exit: --=20 MST