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Tue, 24 May 2022 18:59:32 +0000 (GMT) Received: from li-c92d2ccc-254b-11b2-a85c-a700b5bfb098.ibm.com.com (unknown [9.163.3.233]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 24 May 2022 18:59:32 +0000 (GMT) From: Matthew Rosato To: linux-s390@vger.kernel.org Cc: alex.williamson@redhat.com, cohuck@redhat.com, schnelle@linux.ibm.com, farman@linux.ibm.com, pmorel@linux.ibm.com, borntraeger@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com, svens@linux.ibm.com, frankja@linux.ibm.com, david@redhat.com, imbrenda@linux.ibm.com, vneethv@linux.ibm.com, oberpar@linux.ibm.com, freude@linux.ibm.com, thuth@redhat.com, pasic@linux.ibm.com, pbonzini@redhat.com, corbet@lwn.net, jgg@nvidia.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v8 09/22] s390/pci: stash dtsm and maxstbl Date: Tue, 24 May 2022 14:58:54 -0400 Message-Id: <20220524185907.140285-10-mjrosato@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220524185907.140285-1-mjrosato@linux.ibm.com> References: <20220524185907.140285-1-mjrosato@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Lrwy7KyWCLvIkdB98VwKHadpYjEckSCV X-Proofpoint-ORIG-GUID: e-IH6pygogzDdgmGIdGmBIurj_Zd1SjO X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.874,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-05-24_09,2022-05-23_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 mlxlogscore=999 spamscore=0 phishscore=0 adultscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2205240090 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Store information about what IOAT designation types are supported by underlying hardware as well as the largest store block size allowed. These values will be needed by passthrough. Reviewed-by: Niklas Schnelle Reviewed-by: Pierre Morel Reviewed-by: Christian Borntraeger Signed-off-by: Matthew Rosato --- arch/s390/include/asm/pci.h | 2 ++ arch/s390/include/asm/pci_clp.h | 6 ++++-- arch/s390/pci/pci_clp.c | 2 ++ 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 42a4a312a6dd..4c5b8fbc2079 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -126,9 +126,11 @@ struct zpci_dev { u32 gisa; /* GISA designation for passthrough */ u16 vfn; /* virtual function number */ u16 pchid; /* physical channel ID */ + u16 maxstbl; /* Maximum store block size */ u8 pfgid; /* function group ID */ u8 pft; /* pci function type */ u8 port; + u8 dtsm; /* Supported DT mask */ u8 rid_available : 1; u8 has_hp_slot : 1; u8 has_resources : 1; diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h index f3286bc5ba6e..d6189ed14f84 100644 --- a/arch/s390/include/asm/pci_clp.h +++ b/arch/s390/include/asm/pci_clp.h @@ -153,9 +153,11 @@ struct clp_rsp_query_pci_grp { u8 : 6; u8 frame : 1; u8 refresh : 1; /* TLB refresh mode */ - u16 reserved2; + u16 : 3; + u16 maxstbl : 13; /* Maximum store block size */ u16 mui; - u16 : 16; + u8 dtsm; /* Supported DT mask */ + u8 reserved3; u16 maxfaal; u16 : 4; u16 dnoi : 12; diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index deed35edea14..1edb07ceb766 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -106,6 +106,8 @@ static void clp_store_query_pci_fngrp(struct zpci_dev *zdev, zdev->max_msi = response->noi; zdev->fmb_update = response->mui; zdev->version = response->version; + zdev->maxstbl = response->maxstbl; + zdev->dtsm = response->dtsm; switch (response->version) { case 1: -- 2.27.0