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Fri, 20 Jan 2023 10:25:59 +0000 (GMT) Message-ID: Date: Fri, 20 Jan 2023 11:25:59 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v2 0/6] improve AP queue reset processing To: Tony Krowiak , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: jjherne@linux.ibm.com, freude@linux.ibm.com, pasic@linux.ibm.com, Heiko Carstens , Vasily Gorbik , Alexander Gordeev References: <20230118203111.529766-1-akrowiak@linux.ibm.com> Content-Language: en-US From: Christian Borntraeger In-Reply-To: <20230118203111.529766-1-akrowiak@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: xcvKSQdw7tJvFJE9-kS78h9vQndzAVQY X-Proofpoint-ORIG-GUID: xcvKSQdw7tJvFJE9-kS78h9vQndzAVQY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-20_06,2023-01-20_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 phishscore=0 priorityscore=1501 adultscore=0 impostorscore=0 mlxlogscore=790 clxscore=1011 spamscore=0 mlxscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301200090 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 18.01.23 um 21:31 schrieb Tony Krowiak: > This series introduces several improvements to the function that performs > AP queue resets: > > * Breaks up reset processing into multiple smaller, more concise functions. > > * Use TAPQ to verify completion of a reset in progress rather than mulitple > invocations of ZAPQ. > > * Check TAPQ response codes when verifying successful completion of ZAPQ. > > * Fix erroneous handling of some error response codes. > > * Increase the maximum amount of time to wait for successful completion of > ZAPQ. > > Change log v1 => v2: > ------------------- > Remove patch 7/7 to restore original behavior since we don't know whether > interrupts are disabled when an unexpected response code is returned from > ZAPQ. (Halil) > > Tony Krowiak (6): > s390/vfio-ap: verify reset complete in separate function > s390/vfio_ap: check TAPQ response code when waiting for queue reset > s390/vfio_ap: use TAPQ to verify reset in progress completes > s390/vfio_ap: verify ZAPQ completion after return of response code > zero > s390/vfio_ap: fix handling of error response codes > s390/vfio_ap: increase max wait time for reset verification > > drivers/s390/crypto/vfio_ap_ops.c | 104 +++++++++++++++++++++--------- > 1 file changed, 72 insertions(+), 32 deletions(-) > Thanks applied and queued for CI and regression runs. Will likely go via s390 tree.