Re: [E1000-devel] ixgbe driver causes a delay in brctl addif command.

2015-06-23 Thread Shouta.Uehara
kat...@jp.yokogawa.com) Subject: Re: [E1000-devel] ixgbe driver causes a delay in brctl addif command. > On Jun 18, 2015, at 3:40 AM, shouta.ueh...@jp.yokogawa.com wrote: > > These results show that almost delay is spent at ioctl(SIOCBRADDBR), > and usleep_range is called twice to ixgbe

Re: [E1000-devel] ixgbe driver causes a delay in brctl addif command.

2015-06-19 Thread Rustad, Mark D
> On Jun 18, 2015, at 3:40 AM, shouta.ueh...@jp.yokogawa.com wrote: > > These results show that almost delay is spent at ioctl(SIOCBRADDBR), > and usleep_range is called twice to ixgbe driver. > Both of ixgbe_acquire_swfw_sync_X540 and ixgbe_release_swfw_sync_X540 call > usleep_range(5000, 1)

Re: [E1000-devel] ixgbe driver causes a delay in brctl addif command.

2015-06-18 Thread Skidmore, Donald C
vel@lists.sourceforge.net; mihoko.tan...@jp.yokogawa.com; > ryouta.kat...@jp.yokogawa.com > Subject: Re: [E1000-devel] ixgbe driver causes a delay in brctl addif > command. > > > On Jun 18, 2015, at 3:40 AM, shouta.ueh...@jp.yokogawa.com wrote: > > > > Both of ixgbe_ac

Re: [E1000-devel] ixgbe driver causes a delay in brctl addif command.

2015-06-18 Thread Rustad, Mark D
> On Jun 18, 2015, at 9:02 AM, Rustad, Mark D wrote: > > It is part of the interface space that there should a that much delay between > instances of taking the semaphore. Sorry, I meant to say: It is part of the interface spec that there should be that much delay between instances of taking t

Re: [E1000-devel] ixgbe driver causes a delay in brctl addif command.

2015-06-18 Thread Rustad, Mark D
> On Jun 18, 2015, at 3:40 AM, shouta.ueh...@jp.yokogawa.com wrote: > > Both of ixgbe_acquire_swfw_sync_X540 and ixgbe_release_swfw_sync_X540 call > usleep_range(5000, 1) just before return. It causes non-operation time > about 20msec. > I want to ask you why usleep_range has to be called the