Hi,
On 2018-7-11, at 18:53, Navdeep Parhar wrote:
> Try changing lazy_tx_credit_flush to 0 on the running kernel with a
> debugger, or compile the driver with it set to 0 -- it's in t4_netmap.c:
>
> int lazy_tx_credit_flush = 1;
thanks! With that, I get performance similar to the ixl cards on f
On 07/11/18 07:58, Eggert, Lars wrote:
> Hi,
>
> I have netmap working with the T6 cards now.
>
> However, performance is very poor. It seems to take several milliseconds
> after a NIOCTXSYNC ioctl before the tail is updated?
Try changing lazy_tx_credit_flush to 0 on the running kernel with a
d
Hi,
I have netmap working with the T6 cards now.
However, performance is very poor. It seems to take several milliseconds after
a NIOCTXSYNC ioctl before the tail is updated?
In case it matters, here is what is in loader.conf:
hw.cxgbe.num_vis=2
hw.cxgbe.fl_pktshift=0
hw.cxgbe.ntxq=1
hw.cxgbe.
On Fri, Jul 06, 2018 at 06:41:53AM +, Eggert, Lars wrote:
> Hi,
>
> On 2018-7-5, at 17:47, n...@freebsd.org wrote:
> > Set hw.cxgbe.fl_pktshift=0 in loader.conf to stop the chip from doing
> > this. See cxgbe(4) for details on the knob. It's a historic
> > optimization that doesn't seem to m
Hi,
On 2018-7-5, at 17:47, n...@freebsd.org wrote:
> Set hw.cxgbe.fl_pktshift=0 in loader.conf to stop the chip from doing
> this. See cxgbe(4) for details on the knob. It's a historic
> optimization that doesn't seem to matter on modern CPUs, so the driver
> default should probably be 0 instead
On Thu, Jul 05, 2018 at 03:09:33PM +, Eggert, Lars wrote:
> Hi,
>
> when receiving packets via netmap (current GitHub version) on a Chelsio T6
> vcc0 device on -CURRENT, it appears that the Ethernet header starts at an
> offset of two bytes into the netmap slot. So far, I have only used netmap
Hi,
when receiving packets via netmap (current GitHub version) on a Chelsio T6 vcc0
device on -CURRENT, it appears that the Ethernet header starts at an offset of
two bytes into the netmap slot. So far, I have only used netmap with various
Intel NICs, where the Ethernet header starts at offset
