On Wed, Jan 06, 2021 at 01:32:05PM +0100, Marek Behún wrote:
> On Wed, 6 Jan 2021 12:56:08 +0100
> Marek Behún wrote:
>
> > I also to write a simple NAT masquerading program. I think XDP can
> > increase NAT throughput to 2.5gbps as well.
>
> BTW currently if XDP modifies the packet, it has to m
On Wed, Jan 06, 2021 at 11:33:50AM +0100, Jesper Dangaard Brouer wrote:
> On Tue, 5 Jan 2021 18:43:08 +0100
> Marek Behún wrote:
>
> > On Tue, 5 Jan 2021 18:24:37 +0100
> > Sven Auhagen wrote:
> >
> > > On Tue, Jan 05, 2021 at 06:19:21PM +0100, Marek Behún wrote:
> > > > Currently mvpp2_xdp_s
On Wed, Jan 06, 2021 at 12:56:08PM +0100, Marek Behún wrote:
> I found out that on Turris MOX I am able to route 2.5gbps (at MTU 1500)
> with XDP. But when not using XDP, when the packets go via kernel's
> stack, MOX is able to route less than 1gbps (cca 800mbps, at MTU
> 1500, and the CPU is at 10
On Wed, 6 Jan 2021 13:32:05 +0100
Marek Behún wrote:
> On Wed, 6 Jan 2021 12:56:08 +0100
> Marek Behún wrote:
>
> > I also to write a simple NAT masquerading program. I think XDP can
> > increase NAT throughput to 2.5gbps as well.
>
> BTW currently if XDP modifies the packet, it has to modify
On Wed, 6 Jan 2021 12:56:08 +0100
Marek Behún wrote:
> I also to write a simple NAT masquerading program. I think XDP can
> increase NAT throughput to 2.5gbps as well.
BTW currently if XDP modifies the packet, it has to modify the
checksums accordingly. There is a helper for that even, bpf_csum_
On Tue, 5 Jan 2021 21:23:12 +0100
Andrew Lunn wrote:
> > @@ -4913,8 +4914,8 @@ static int mvpp2_xdp_setup(struct mvpp2_port *port,
> > struct netdev_bpf *bpf)
> > bool running = netif_running(port->dev);
> > bool reset = !prog != !port->xdp_prog;
> >
> > - if (port->dev->mtu > ETH_DA
On Tue, 5 Jan 2021 21:21:10 +0100
Andrew Lunn wrote:
> On Tue, Jan 05, 2021 at 06:43:08PM +0100, Marek Behún wrote:
> > On Tue, 5 Jan 2021 18:24:37 +0100
> > Sven Auhagen wrote:
> >
> > > On Tue, Jan 05, 2021 at 06:19:21PM +0100, Marek Behún wrote:
> > > > Currently mvpp2_xdp_setup won't al
On Tue, 5 Jan 2021 18:43:08 +0100
Marek Behún wrote:
> On Tue, 5 Jan 2021 18:24:37 +0100
> Sven Auhagen wrote:
>
> > On Tue, Jan 05, 2021 at 06:19:21PM +0100, Marek Behún wrote:
> > > Currently mvpp2_xdp_setup won't allow attaching XDP program if
> > > mtu > ETH_DATA_LEN (1500).
> > >
> >
> @@ -4913,8 +4914,8 @@ static int mvpp2_xdp_setup(struct mvpp2_port *port,
> struct netdev_bpf *bpf)
> bool running = netif_running(port->dev);
> bool reset = !prog != !port->xdp_prog;
>
> - if (port->dev->mtu > ETH_DATA_LEN) {
> - NL_SET_ERR_MSG_MOD(bpf->extack, "XD
On Tue, Jan 05, 2021 at 06:43:08PM +0100, Marek Behún wrote:
> On Tue, 5 Jan 2021 18:24:37 +0100
> Sven Auhagen wrote:
>
> > On Tue, Jan 05, 2021 at 06:19:21PM +0100, Marek Behún wrote:
> > > Currently mvpp2_xdp_setup won't allow attaching XDP program if
> > > mtu > ETH_DATA_LEN (1500).
> > >
On Tue, 5 Jan 2021 18:24:37 +0100
Sven Auhagen wrote:
> On Tue, Jan 05, 2021 at 06:19:21PM +0100, Marek Behún wrote:
> > Currently mvpp2_xdp_setup won't allow attaching XDP program if
> > mtu > ETH_DATA_LEN (1500).
> >
> > The mvpp2_change_mtu on the other hand checks whether
> > MVPP2_RX_PK
Currently mvpp2_xdp_setup won't allow attaching XDP program if
mtu > ETH_DATA_LEN (1500).
The mvpp2_change_mtu on the other hand checks whether
MVPP2_RX_PKT_SIZE(mtu) > MVPP2_BM_LONG_PKT_SIZE.
These two checks are semantically different.
Moreover this limit can be increased to MVPP2_MAX_RX_B
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