From patchwork Fri May 31 06:13:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stewart Smith X-Patchwork-Id: 1108137 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45FZRl1LNNz9s00 for ; Fri, 31 May 2019 16:34:27 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45FZRk6lm6zDqtj for ; Fri, 31 May 2019 16:34:26 +1000 (AEST) X-Original-To: skiboot@lists.ozlabs.org Delivered-To: skiboot@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=stewart@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45FZ0P3lVKzDqXw for ; Fri, 31 May 2019 16:14:13 +1000 (AEST) Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4V63wI6133745 for ; Fri, 31 May 2019 02:14:09 -0400 Received: from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202]) by mx0b-001b2d01.pphosted.com with ESMTP id 2stwdwjr30-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 31 May 2019 02:14:09 -0400 Received: from localhost by e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 31 May 2019 07:14:06 +0100 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x4V6E5x237814540 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 31 May 2019 06:14:05 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C9774112062 for ; Fri, 31 May 2019 06:14:05 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 85758112061 for ; Fri, 31 May 2019 06:14:05 +0000 (GMT) Received: from birb.localdomain (unknown [9.185.142.91]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP for ; Fri, 31 May 2019 06:14:05 +0000 (GMT) Received: by birb.localdomain (Postfix, from userid 1000) id EEF7450CBD7; Fri, 31 May 2019 16:13:57 +1000 (AEST) From: Stewart Smith To: skiboot@lists.ozlabs.org Date: Fri, 31 May 2019 16:13:25 +1000 X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190531061351.22973-1-stewart@linux.ibm.com> References: <20190531061351.22973-1-stewart@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19053106-0060-0000-0000-0000034A56E3 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011189; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000286; SDB=6.01211088; UDB=6.00636341; IPR=6.00992124; MB=3.00027126; MTD=3.00000008; XFM=3.00000015; UTC=2019-05-31 06:14:08 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19053106-0061-0000-0000-0000498FD379 Message-Id: <20190531061351.22973-85-stewart@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-05-31_03:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=912 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905310040 Subject: [Skiboot] [PATCH 084/110] doc: Add skeleton OPAL_PCI_RESET docs X-BeenThere: skiboot@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Mailing list for skiboot development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: skiboot-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Skiboot" Signed-off-by: Stewart Smith --- doc/opal-api/opal-pci-reset-49.rst | 42 ++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 doc/opal-api/opal-pci-reset-49.rst diff --git a/doc/opal-api/opal-pci-reset-49.rst b/doc/opal-api/opal-pci-reset-49.rst new file mode 100644 index 000000000000..85acc0bb7304 --- /dev/null +++ b/doc/opal-api/opal-pci-reset-49.rst @@ -0,0 +1,42 @@ +.. _OPAL_PCI_RESET: + +OPAL_PCI_RESET +============== + +.. code-block:: c + + #define OPAL_PCI_RESET 49 + + enum OpalPciResetScope { + OPAL_RESET_PHB_COMPLETE = 1, + OPAL_RESET_PCI_LINK = 2, + OPAL_RESET_PHB_ERROR = 3, + OPAL_RESET_PCI_HOT = 4, + OPAL_RESET_PCI_FUNDAMENTAL = 5, + OPAL_RESET_PCI_IODA_TABLE = 6 + }; + + enum OpalPciResetState { + OPAL_DEASSERT_RESET = 0, + OPAL_ASSERT_RESET = 1 + }; + + int64_t opal_pci_reset(uint64_t id, uint8_t reset_scope, uint8_t assert_state); + +Kick off the requested PCI reset operation. This starts a state machine off to +perform the requested operation. This call will return how many milliseconds to +wait before calling back into :ref:`OPAL_PCI_POLL`. An OS can +call :ref:`OPAL_PCI_POLL` earlier, but it is unlikely any progress will have +been made. + + +Returns +------- + +:ref:`OPAL_PARAMETER` + Invalid ``id``, ``reset_scope``, or ``assert_state``. +:ref:`OPAL_UNSUPPORTED` + Operation is unsupported on ``id``. +value > 0 + How many ms to wait for the state machine to crank. + Call :ref:`OPAL_PCI_POLL` to crank the state machine further.