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From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Daniel Borkmann <borkmann@iogearbox.net>,
	Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	netdev@vger.kernel.org, Jason Wang <jasowang@redhat.com>,
	dsahern@gmail.com, virtualization@lists.linux-foundation.org,
	gospo@broadcom.com, bjorn.topel@intel.com,
	michael.chan@broadcom.com, brouer@redhat.com
Subject: Re: [bpf-next V2 PATCH 11/14] virtio_net: setup xdp_rxq_info
Date: Tue, 26 Dec 2017 12:20:50 +0100	[thread overview]
Message-ID: <20171226122050.3a453cd7@redhat.com> (raw)
In-Reply-To: <151396275093.20006.9684557344807016870.stgit@firesoul>

On Fri, 22 Dec 2017 18:12:31 +0100
Jesper Dangaard Brouer <brouer@redhat.com> wrote:

> The virtio_net driver doesn't dynamically change the RX-ring queue
> layout and backing pages, but instead reject XDP setup if all the
> conditions for XDP is not meet.  Thus, the xdp_rxq_info also remains
> fairly static.  This allow us to simply add the reg/unreg to
> net_device open/close functions.
> 
> Driver hook points for xdp_rxq_info:
>  * reg  : virtnet_open
>  * unreg: virtnet_close
> 
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Jason Wang <jasowang@redhat.com>
> Cc: virtualization@lists.linux-foundation.org
> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
> ---
>  drivers/net/virtio_net.c |   12 +++++++++++-

Found a bug while testing this... I forgot to update receive_mergeable() too.

I'll send a V3

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer

  reply	other threads:[~2017-12-26 11:21 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-22 17:11 [bpf-next V2 PATCH 00/14] xdp: new XDP rx-queue info concept Jesper Dangaard Brouer
2017-12-22 17:11 ` [bpf-next V2 PATCH 01/14] xdp: base API for " Jesper Dangaard Brouer
2017-12-23  0:14   ` Jakub Kicinski
2017-12-23 13:13     ` Jesper Dangaard Brouer
2017-12-22 17:11 ` [bpf-next V2 PATCH 02/14] xdp/mlx5: setup xdp_rxq_info Jesper Dangaard Brouer
2017-12-22 17:11 ` [bpf-next V2 PATCH 03/14] i40e: " Jesper Dangaard Brouer
2017-12-22 17:11   ` [Intel-wired-lan] " Jesper Dangaard Brouer
2017-12-22 17:11 ` [bpf-next V2 PATCH 04/14] ixgbe: " Jesper Dangaard Brouer
2017-12-22 17:11   ` [Intel-wired-lan] " Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 05/14] xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_reg Jesper Dangaard Brouer
2017-12-27 10:37   ` Chopra, Manish
2017-12-27 11:58     ` Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 06/14] mlx4: setup xdp_rxq_info Jesper Dangaard Brouer
2017-12-24 11:11   ` Tariq Toukan
2017-12-22 17:12 ` [bpf-next V2 PATCH 07/14] bnxt_en: " Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 08/14] nfp: " Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 09/14] thunderx: " Jesper Dangaard Brouer
2017-12-22 17:12   ` Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 10/14] tun: " Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 11/14] virtio_net: " Jesper Dangaard Brouer
2017-12-22 17:12 ` Jesper Dangaard Brouer
2017-12-26 11:20   ` Jesper Dangaard Brouer [this message]
2017-12-26 11:20   ` Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 12/14] xdp: generic XDP handling of xdp_rxq_info Jesper Dangaard Brouer
2017-12-22 17:12 ` [bpf-next V2 PATCH 13/14] bpf: finally expose xdp_rxq_info to XDP bpf-programs Jesper Dangaard Brouer
2017-12-23  4:50   ` Alexei Starovoitov
2017-12-22 17:12 ` [bpf-next V2 PATCH 14/14] samples/bpf: program demonstrating access to xdp_rxq_info Jesper Dangaard Brouer

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