RE: [PATCH] storvsc: Avoid excessive host scan on controller change

2017-11-06 Thread Long Li
microsoft.com>; James E . J . Bottomley > <jbottom...@odin.com>; Martin K . Petersen > <martin.peter...@oracle.com>; de...@linuxdriverproject.org; linux- > s...@vger.kernel.org; linux-kernel@vger.kernel.org; Long Li > <lon...@microsoft.com> > Subject: Re: [

RE: [PATCH] storvsc: Avoid excessive host scan on controller change

2017-11-06 Thread Long Li
- > s...@vger.kernel.org; linux-kernel@vger.kernel.org; Long Li > > Subject: Re: [PATCH] storvsc: Avoid excessive host scan on controller change > > > Long, > > > When there are multiple disks attached to the same SCSI controller, > >

Re: [PATCH] storvsc: Avoid excessive host scan on controller change

2017-11-06 Thread Martin K. Petersen
Long, > When there are multiple disks attached to the same SCSI controller, > the host may send several VSTOR_OPERATION_REMOVE_DEVICE or > VSTOR_OPERATION_ENUMERATE_BUS messages in a row, to indicate there is > a change on the SCSI controller. In response, storvsc rescans the SCSI > host.

Re: [PATCH] storvsc: Avoid excessive host scan on controller change

2017-11-06 Thread Martin K. Petersen
Long, > When there are multiple disks attached to the same SCSI controller, > the host may send several VSTOR_OPERATION_REMOVE_DEVICE or > VSTOR_OPERATION_ENUMERATE_BUS messages in a row, to indicate there is > a change on the SCSI controller. In response, storvsc rescans the SCSI > host.

Re: [PATCH] storvsc: Avoid excessive host scan on controller change

2017-11-06 Thread Cathy Avery
On 10/31/2017 05:58 PM, Long Li wrote: From: Long Li When there are multiple disks attached to the same SCSI controller, the host may send several VSTOR_OPERATION_REMOVE_DEVICE or VSTOR_OPERATION_ENUMERATE_BUS messages in a row, to indicate there is a change on the SCSI

Re: [PATCH] storvsc: Avoid excessive host scan on controller change

2017-11-06 Thread Cathy Avery
On 10/31/2017 05:58 PM, Long Li wrote: From: Long Li When there are multiple disks attached to the same SCSI controller, the host may send several VSTOR_OPERATION_REMOVE_DEVICE or VSTOR_OPERATION_ENUMERATE_BUS messages in a row, to indicate there is a change on the SCSI controller. In