Re: [PATCH v2] PCI: lock each enable/disable num_vfs operation in sysfs

2017-02-03 Thread Bjorn Helgaas
On Fri, Jan 06, 2017 at 01:59:08PM -0800, Emil Tantilov wrote: > Enabling/disabling SRIOV via sysfs by echo-ing multiple values > simultaneously: > > echo 63 > /sys/class/net/ethX/device/sriov_numvfs& > echo 63 > /sys/class/net/ethX/device/sriov_numvfs > > sleep 5 > > echo 0 > /sys/class/net/eth

Re: [PATCH v2] PCI: lock each enable/disable num_vfs operation in sysfs

2017-01-08 Thread Gavin Shan
On Fri, Jan 06, 2017 at 01:59:08PM -0800, Emil Tantilov wrote: >Enabling/disabling SRIOV via sysfs by echo-ing multiple values >simultaneously: > >echo 63 > /sys/class/net/ethX/device/sriov_numvfs& >echo 63 > /sys/class/net/ethX/device/sriov_numvfs > >sleep 5 > >echo 0 > /sys/class/net/ethX/device/

Re: [PATCH v2] PCI: lock each enable/disable num_vfs operation in sysfs

2017-01-06 Thread Greg
On Fri, 2017-01-06 at 13:59 -0800, Emil Tantilov wrote: > Enabling/disabling SRIOV via sysfs by echo-ing multiple values > simultaneously: > > echo 63 > /sys/class/net/ethX/device/sriov_numvfs& > echo 63 > /sys/class/net/ethX/device/sriov_numvfs > > sleep 5 > > echo 0 > /sys/class/net/ethX/devic