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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Tony Krowiak <akrowiak@linux.ibm.com>,
	linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org
Cc: freude@linux.ibm.com, cohuck@redhat.com, mjrosato@linux.ibm.com,
	pasic@linux.ibm.com, alex.williamson@redhat.com,
	kwankhede@nvidia.com, fiuczy@linux.ibm.com
Subject: Re: [PATCH v8 03/16] s390/vfio-ap: manage link between queue struct and matrix mdev
Date: Tue, 16 Jun 2020 19:50:44 +0200	[thread overview]
Message-ID: <6ae77590-8401-a06b-eec5-713319c21017@de.ibm.com> (raw)
In-Reply-To: <20200605214004.14270-4-akrowiak@linux.ibm.com>



On 05.06.20 23:39, Tony Krowiak wrote:
[...]
> +static void vfio_ap_mdev_link_queues(struct ap_matrix_mdev *matrix_mdev,
> +				     enum qlink_type type,
> +				     unsigned long qlink_id)
> +{
> +	unsigned long id;
> +	struct vfio_ap_queue *q;
> +
> +	switch (type) {
> +	case LINK_APID:
> +	case UNLINK_APID:
> +		for_each_set_bit_inv(id, matrix_mdev->matrix.aqm,
> +				     matrix_mdev->matrix.aqm_max + 1) {
> +			q = vfio_ap_get_queue(AP_MKQID(qlink_id, id));
> +			if (q) {
> +				if (type == LINK_APID)
> +					q->matrix_mdev = matrix_mdev;
> +				else
> +					q->matrix_mdev = NULL;> +			}
> +		}
> +		break;
> +	default:

Can you rather use
	case LINK_APQI:
	case UNLINK_APQI:

and add a default case with a WARN_ON_ONCE?

> +		for_each_set_bit_inv(id, matrix_mdev->matrix.apm,
> +				     matrix_mdev->matrix.apm_max + 1) {
> +			q = vfio_ap_get_queue(AP_MKQID(id, qlink_id));
> +			if (q) {
> +				if (type == LINK_APQI)
> +					q->matrix_mdev = matrix_mdev;
> +				else
> +					q->matrix_mdev = NULL;
> +			}
> +		}
> +		break;
> +	}
> +}
> +


  reply	other threads:[~2020-06-16 17:50 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-05 21:39 [PATCH v8 00/16] s390/vfio-ap: dynamic configuration support Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 01/16] s390/ap: introduce new ap function ap_get_qdev() Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 02/16] s390/vfio-ap: use new AP bus interface to search for queue devices Tony Krowiak
2020-06-05 23:48   ` kernel test robot
2020-06-16 15:38   ` Christian Borntraeger
2020-06-16 15:45   ` Christian Borntraeger
2020-06-17 12:02     ` Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 03/16] s390/vfio-ap: manage link between queue struct and matrix mdev Tony Krowiak
2020-06-16 17:50   ` Christian Borntraeger [this message]
2020-06-17 12:10     ` Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 04/16] s390/zcrypt: driver callback to indicate resource in use Tony Krowiak
2020-06-06  1:14   ` kernel test robot
2020-06-06  1:29   ` kernel test robot
2020-07-08 12:27   ` Christian Borntraeger
2020-07-08 14:04     ` Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 05/16] s390/vfio-ap: implement in-use callback for vfio_ap driver Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 06/16] s390/vfio-ap: introduce shadow APCB Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 07/16] s390/vfio-ap: sysfs attribute to display the guest's matrix Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 08/16] s390/vfio-ap: filter matrix for unavailable queue devices Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 09/16] s390/vfio_ap: add qlink from ap_matrix_mdev struct to vfio_ap_queue struct Tony Krowiak
2020-06-06  2:51   ` kernel test robot
2020-06-05 21:39 ` [PATCH v8 10/16] s390/vfio-ap: allow assignment of unavailable AP queues to mdev device Tony Krowiak
2020-06-05 21:39 ` [PATCH v8 11/16] s390/vfio-ap: allow configuration of matrix mdev in use by a KVM guest Tony Krowiak
2020-06-05 21:40 ` [PATCH v8 12/16] s390/vfio-ap: allow hot plug/unplug of AP resources using mdev device Tony Krowiak
2020-06-05 21:40 ` [PATCH v8 13/16] s390/zcrypt: Notify driver on config changed and scan complete callbacks Tony Krowiak
2020-06-05 21:40 ` [PATCH v8 14/16] s390/vfio-ap: handle host AP config change notification Tony Krowiak
2020-06-06  4:31   ` kernel test robot
2020-06-05 21:40 ` [PATCH v8 15/16] s390/vfio-ap: handle AP bus scan completed notification Tony Krowiak
2020-06-05 21:40 ` [PATCH v8 16/16] s390/vfio-ap: handle probe/remove not due to host AP config changes Tony Krowiak
2020-06-16 14:26 ` [PATCH v8 00/16] s390/vfio-ap: dynamic configuration support Tony Krowiak
2020-06-16 15:31   ` Christian Borntraeger
2020-06-17 12:21     ` Tony Krowiak
2020-06-22 14:03 ` Tony Krowiak
2020-06-29 15:11 ` Tony Krowiak

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