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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AAA4C433FE for ; Fri, 4 Feb 2022 21:16:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242229AbiBDVQm (ORCPT ); Fri, 4 Feb 2022 16:16:42 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:62560 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S242135AbiBDVQL (ORCPT ); Fri, 4 Feb 2022 16:16:11 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 214K08NQ003319; Fri, 4 Feb 2022 21:16:10 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=Yh7aAYl9nehFzILhLmRaOMjsAZGm+FYiJQywVPp+8Nk=; b=YbmyHRH/xhXlxmDVtXafsxhclzUACD/e855dOjryKyGqi6DohTdACVVU/jAtyk/heo00 ugiWqPriOpnRh7+qKf8V5wDUOyltmFg2fKSO8SHfRF6jB4AcnmVryQC7LmCKpHr5CyBI lNevnL5kJ0+uWJOsHgMDOsody6WsmjU8UB5O8p/+S5otqw1RyTylQliJitsnGn+61Rru Ezfnl0c8u4dNr+KnRLrtUS6M64mkgh2HVbUgBgGjbnWELh7+jXN7OZ5dBzp09s91RTPj RO9hhTV1Po5OTFX2g7DuwElQuXn6jiChY1iJ7aXTCkb2ZNJBcyE+5JUbFpabKIWSXPnm EA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3e0rt5nmsd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 21:16:10 +0000 Received: from m0098420.ppops.net (m0098420.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 214LGAOY002791; Fri, 4 Feb 2022 21:16:10 GMT Received: from ppma02wdc.us.ibm.com (aa.5b.37a9.ip4.static.sl-reverse.com [169.55.91.170]) by mx0b-001b2d01.pphosted.com with ESMTP id 3e0rt5nms2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 21:16:10 +0000 Received: from pps.filterd (ppma02wdc.us.ibm.com [127.0.0.1]) by ppma02wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 214LCa9b022102; Fri, 4 Feb 2022 21:16:09 GMT Received: from b03cxnp08026.gho.boulder.ibm.com (b03cxnp08026.gho.boulder.ibm.com [9.17.130.18]) by ppma02wdc.us.ibm.com with ESMTP id 3e0r0kav5h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 21:16:09 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08026.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 214LG7nE37552574 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 4 Feb 2022 21:16:07 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A46FD136060; Fri, 4 Feb 2022 21:16:07 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D9E68136066; Fri, 4 Feb 2022 21:16:05 +0000 (GMT) Received: from li-c92d2ccc-254b-11b2-a85c-a700b5bfb098.ibm.com.com (unknown [9.211.82.52]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Fri, 4 Feb 2022 21:16:05 +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, 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, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 12/30] s390/pci: get SHM information from list pci Date: Fri, 4 Feb 2022 16:15:18 -0500 Message-Id: <20220204211536.321475-13-mjrosato@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220204211536.321475-1-mjrosato@linux.ibm.com> References: <20220204211536.321475-1-mjrosato@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: M3mwsdhdp7s_aqzvsiUUEgY07m8drPY5 X-Proofpoint-ORIG-GUID: 28QxcQMTzWsK1imgHtOdPXtYewTbJcd- X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-02-04_07,2022-02-03_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 clxscore=1015 spamscore=0 bulkscore=0 mlxlogscore=999 malwarescore=0 suspectscore=0 adultscore=0 phishscore=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202040117 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org KVM will need information on the special handle mask used to indicate emulated devices. In order to obtain this, a new type of list pci call must be made to gather the information. Extend clp_list_pci_req to also fetch the model-dependent-data field that holds this mask. Reviewed-by: Niklas Schnelle Signed-off-by: Matthew Rosato --- arch/s390/include/asm/pci.h | 1 + arch/s390/include/asm/pci_clp.h | 2 +- arch/s390/pci/pci_clp.c | 25 ++++++++++++++++++++++--- 3 files changed, 24 insertions(+), 4 deletions(-) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 3c0b9986dcdc..e8a3fd5bc169 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -227,6 +227,7 @@ int clp_enable_fh(struct zpci_dev *zdev, u32 *fh, u8 nr_dma_as); int clp_disable_fh(struct zpci_dev *zdev, u32 *fh); int clp_get_state(u32 fid, enum zpci_state *state); int clp_refresh_fh(u32 fid, u32 *fh); +int zpci_get_mdd(u32 *mdd); /* UID */ void update_uid_checking(bool new); diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h index d6189ed14f84..dc2041e97de4 100644 --- a/arch/s390/include/asm/pci_clp.h +++ b/arch/s390/include/asm/pci_clp.h @@ -76,7 +76,7 @@ struct clp_req_list_pci { struct clp_rsp_list_pci { struct clp_rsp_hdr hdr; u64 resume_token; - u32 reserved2; + u32 mdd; u16 max_fn; u8 : 7; u8 uid_checking : 1; diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index dc733b58e74f..7477956be632 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -328,7 +328,7 @@ int clp_disable_fh(struct zpci_dev *zdev, u32 *fh) } static int clp_list_pci_req(struct clp_req_rsp_list_pci *rrb, - u64 *resume_token, int *nentries) + u64 *resume_token, int *nentries, u32 *mdd) { int rc; @@ -354,6 +354,8 @@ static int clp_list_pci_req(struct clp_req_rsp_list_pci *rrb, *nentries = (rrb->response.hdr.len - LIST_PCI_HDR_LEN) / rrb->response.entry_size; *resume_token = rrb->response.resume_token; + if (mdd) + *mdd = rrb->response.mdd; return rc; } @@ -365,7 +367,7 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb, void *data, int nentries, i, rc; do { - rc = clp_list_pci_req(rrb, &resume_token, &nentries); + rc = clp_list_pci_req(rrb, &resume_token, &nentries, NULL); if (rc) return rc; for (i = 0; i < nentries; i++) @@ -383,7 +385,7 @@ static int clp_find_pci(struct clp_req_rsp_list_pci *rrb, u32 fid, int nentries, i, rc; do { - rc = clp_list_pci_req(rrb, &resume_token, &nentries); + rc = clp_list_pci_req(rrb, &resume_token, &nentries, NULL); if (rc) return rc; fh_list = rrb->response.fh_list; @@ -468,6 +470,23 @@ int clp_get_state(u32 fid, enum zpci_state *state) return rc; } +int zpci_get_mdd(u32 *mdd) +{ + struct clp_req_rsp_list_pci *rrb; + u64 resume_token = 0; + int nentries, rc; + + rrb = clp_alloc_block(GFP_KERNEL); + if (!rrb) + return -ENOMEM; + + rc = clp_list_pci_req(rrb, &resume_token, &nentries, mdd); + + clp_free_block(rrb); + return rc; +} +EXPORT_SYMBOL_GPL(zpci_get_mdd); + static int clp_base_slpc(struct clp_req *req, struct clp_req_rsp_slpc *lpcb) { unsigned long limit = PAGE_SIZE - sizeof(lpcb->request); -- 2.27.0