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From: Halil Pasic <pasic@linux.ibm.com>
To: Tony Krowiak <akrowiak@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, freude@linux.ibm.com,
	borntraeger@de.ibm.com, cohuck@redhat.com,
	mjrosato@linux.ibm.com, alex.williamson@redhat.com,
	kwankhede@nvidia.com, fiuczy@linux.ibm.com,
	frankja@linux.ibm.com, david@redhat.com, hca@linux.ibm.com,
	gor@linux.ibm.com
Subject: Re: [PATCH v12 05/17] s390/vfio-ap: manage link between queue struct and matrix mdev
Date: Thu, 26 Nov 2020 15:08:28 +0100	[thread overview]
Message-ID: <20201126150828.78776e62.pasic@linux.ibm.com> (raw)
In-Reply-To: <20201124214016.3013-6-akrowiak@linux.ibm.com>

On Tue, 24 Nov 2020 16:40:04 -0500
Tony Krowiak <akrowiak@linux.ibm.com> wrote:

> @@ -1155,6 +1243,11 @@ static int vfio_ap_mdev_reset_queues(struct mdev_device *mdev)
>  			     matrix_mdev->matrix.apm_max + 1) {
>  		for_each_set_bit_inv(apqi, matrix_mdev->matrix.aqm,
>  				     matrix_mdev->matrix.aqm_max + 1) {
> +			q = vfio_ap_mdev_get_queue(matrix_mdev,
> +						   AP_MKQID(apid, apqi));
> +			if (!q)
> +				continue;
> +
>  			ret = vfio_ap_mdev_reset_queue(apid, apqi, 1);
>  			/*
>  			 * Regardless whether a queue turns out to be busy, or
> @@ -1164,9 +1257,7 @@ static int vfio_ap_mdev_reset_queues(struct mdev_device *mdev)
>  			if (ret)
>  				rc = ret;
>  
> -			q = vfio_ap_get_queue(matrix_mdev, AP_MKQID(apid, apqi);
> -			if (q)
> -				vfio_ap_free_aqic_resources(q);
> +			vfio_ap_free_aqic_resources(q);
>  		}
>  	}

During the review of v11 we discussed this. Introducing this the one
way around, just to change it in the next patch, which should deal
with something different makes no sense to me.

BTW I've provided a ton of feedback for '[PATCH v11 03/14]
s390/vfio-ap: manage link between queue struct and matrix mdev', but I
can't find your response to that. Some of the things resurface here, and
I don't feel like repeating myself. Can you provide me an answer to
the v11 version?

  reply	other threads:[~2020-11-26 14:08 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-24 21:39 [PATCH v12 00/17] s390/vfio-ap: dynamic configuration support Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 01/17] s390/vfio-ap: move probe and remove callbacks to vfio_ap_ops.c Tony Krowiak
2020-11-26  9:35   ` Halil Pasic
2020-11-24 21:40 ` [PATCH v12 02/17] s390/vfio-ap: decrement reference count to KVM Tony Krowiak
2020-11-26  9:42   ` Halil Pasic
2020-11-24 21:40 ` [PATCH v12 03/17] 390/vfio-ap: use new AP bus interface to search for queue devices Tony Krowiak
2020-11-26 10:34   ` Halil Pasic
2020-11-30 14:48     ` Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 04/17] s390/vfio-ap: No need to disable IRQ after queue reset Tony Krowiak
2020-11-26 13:37   ` Halil Pasic
2020-11-24 21:40 ` [PATCH v12 05/17] s390/vfio-ap: manage link between queue struct and matrix mdev Tony Krowiak
2020-11-26 14:08   ` Halil Pasic [this message]
2020-12-14 23:37     ` Tony Krowiak
2020-11-26 14:45   ` Halil Pasic
2020-12-14 23:32     ` Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 06/17] s390/zcrypt: driver callback to indicate resource in use Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 07/17] s390/vfio-ap: implement in-use callback for vfio_ap driver Tony Krowiak
2020-11-26 15:54   ` Halil Pasic
2020-12-15  3:52     ` Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 08/17] s390/vfio-ap: introduce shadow APCB Tony Krowiak
2020-11-29  0:44   ` Halil Pasic
2020-11-24 21:40 ` [PATCH v12 09/17] s390/vfio-ap: sysfs attribute to display the guest's matrix Tony Krowiak
2020-11-29  0:49   ` Halil Pasic
2020-12-16 20:00     ` Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 10/17] s390/vfio-ap: initialize the guest apcb Tony Krowiak
2020-11-29  1:09   ` Halil Pasic
2020-12-16 20:08     ` Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 11/17] s390/vfio-ap: allow assignment of unavailable AP queues to mdev device Tony Krowiak
2020-11-29  1:17   ` Halil Pasic
2020-12-16 20:14     ` Tony Krowiak
2020-12-16 22:09       ` Halil Pasic
2020-11-24 21:40 ` [PATCH v12 12/17] s390/vfio-ap: allow hot plug/unplug of AP resources using " Tony Krowiak
2020-11-29  1:52   ` Halil Pasic
2020-11-30 19:36     ` Tony Krowiak
2020-11-30 23:32       ` Halil Pasic
2020-12-01  0:18         ` Tony Krowiak
2020-12-01 10:19           ` Halil Pasic
2020-12-01 17:56         ` Halil Pasic
2020-12-01 22:12           ` Tony Krowiak
2020-12-01 23:14             ` Halil Pasic
2020-11-24 21:40 ` [PATCH v12 13/17] s390/vfio-ap: hot plug/unplug queues on bind/unbind of queue device Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 14/17] s390/zcrypt: Notify driver on config changed and scan complete callbacks Tony Krowiak
     [not found]   ` <20201130101836.0399547c.pasic@linux.ibm.com>
2020-12-09  7:20     ` Harald Freudenberger
2020-12-16 20:32       ` Tony Krowiak
2020-12-16 20:54     ` Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 15/17] s390/vfio-ap: handle host AP config change notification Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 16/17] s390/vfio-ap: handle AP bus scan completed notification Tony Krowiak
2020-11-24 21:40 ` [PATCH v12 17/17] s390/vfio-ap: update docs to include dynamic config support Tony Krowiak

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