On Wed, Apr 20, 2016 at 10:47:59AM -0500, Jay Rolette wrote:
> On Wed, Apr 20, 2016 at 9:05 AM, Bruce Richardson <
> bruce.richardson at intel.com> wrote:
>
> > On Wed, Apr 20, 2016 at 07:22:57AM -0500, Jay Rolette wrote:
> > > On Wed, Apr 20, 2016 at 4:10 AM, Bruce Richardson <
> > > bruce.richar
Hi Jay,
Max RX frame size and buffer size are independent bits. You may set
MAXFRS to 9K and feed 512B buffers or vice versa. The issue is that
you are trying to tune both of the options to avoid buf chains.
Here is another way to enable jumbo frames and avoid buf chains:
1. Disable scattering and
On Wed, Apr 20, 2016 at 07:22:57AM -0500, Jay Rolette wrote:
> On Wed, Apr 20, 2016 at 4:10 AM, Bruce Richardson <
> bruce.richardson at intel.com> wrote:
>
> > On Tue, Apr 19, 2016 at 03:16:37PM -0500, Jay Rolette wrote:
> > > In ixgbe_dev_rx_init(), there is this bit of code:
> > >
> > > /
Hi Jay,
On Tue, Apr 19, 2016 at 10:16 PM, Jay Rolette wrote:
> Should the driver error out in that case instead of only "sort of" working?
+1, we hit the same issue. Error or log message would help.
> If I support a max frame size of 9216 bytes (exactly a 1K multiple to make
> the NIC happy), t
On Wed, Apr 20, 2016 at 9:05 AM, Bruce Richardson <
bruce.richardson at intel.com> wrote:
> On Wed, Apr 20, 2016 at 07:22:57AM -0500, Jay Rolette wrote:
> > On Wed, Apr 20, 2016 at 4:10 AM, Bruce Richardson <
> > bruce.richardson at intel.com> wrote:
> >
> > > On Tue, Apr 19, 2016 at 03:16:37PM -0
On Tue, Apr 19, 2016 at 03:16:37PM -0500, Jay Rolette wrote:
> In ixgbe_dev_rx_init(), there is this bit of code:
>
> /*
>* Configure the RX buffer size in the BSIZEPACKET field of
>* the SRRCTL register of the queue.
>* The value is in 1 KB resolution. Valid values c
On Wed, Apr 20, 2016 at 4:35 AM, Andriy Berestovskyy
wrote:
> Hi Jay,
>
> On Tue, Apr 19, 2016 at 10:16 PM, Jay Rolette wrote:
> > Should the driver error out in that case instead of only "sort of"
> working?
>
> +1, we hit the same issue. Error or log message would help.
>
> > If I support a ma
On Wed, Apr 20, 2016 at 4:10 AM, Bruce Richardson <
bruce.richardson at intel.com> wrote:
> On Tue, Apr 19, 2016 at 03:16:37PM -0500, Jay Rolette wrote:
> > In ixgbe_dev_rx_init(), there is this bit of code:
> >
> > /*
> >* Configure the RX buffer size in the BSIZEPACKET field of
> >
In ixgbe_dev_rx_init(), there is this bit of code:
/*
* Configure the RX buffer size in the BSIZEPACKET field of
* the SRRCTL register of the queue.
* The value is in 1 KB resolution. Valid values can be from
* 1 KB to 16 KB.
*/
buf_size
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