From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: Saeed Mahameed <saeedm@mellanox.com>,
"brouer\@redhat.com" <brouer@redhat.com>
Cc: "hawk\@kernel.org" <hawk@kernel.org>,
"virtualization\@lists.linux-foundation.org"
<virtualization@lists.linux-foundation.org>,
"borkmann\@iogearbox.net" <borkmann@iogearbox.net>,
Tariq Toukan <tariqt@mellanox.com>,
"john.fastabend\@gmail.com" <john.fastabend@gmail.com>,
"mst\@redhat.com" <mst@redhat.com>,
"jakub.kicinski\@netronome.com" <jakub.kicinski@netronome.com>,
"dsahern\@gmail.com" <dsahern@gmail.com>,
"netdev\@vger.kernel.org" <netdev@vger.kernel.org>,
"jasowang\@redhat.com" <jasowang@redhat.com>,
"davem\@davemloft.net" <davem@davemloft.net>,
"makita.toshiaki\@lab.ntt.co.jp" <makita.toshiaki@lab.ntt.co.jp>
Subject: Re: Resource management for ndo_xdp_xmit (Was: [PATCH net] virtio_net: Account for tx bytes and packets on sending xdp_frames)
Date: Fri, 08 Feb 2019 17:55:14 +0100 [thread overview]
Message-ID: <87o97mp6dp.fsf@toke.dk> (raw)
In-Reply-To: <9e5e6882566ac67276209b35ec112a824b256bff.camel@mellanox.com>
Saeed Mahameed <saeedm@mellanox.com> writes:
> But:
> 2) this won't totally solve our problem, since sometimes the driver can
> decide to recreate (change of configuration) hw resources on the fly
> while redirect/devmap is already happening, so we need some kind of a
> dev_map_notification or a flag with rcu synch, for when the driver want
> to make the xdp redirect resources unavailable.
Good point, I'll make a note of this. Do you have a pointer to where the
mlx5 driver does this kind of change currently?
-Toke
next prev parent reply other threads:[~2019-02-08 16:55 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-31 11:40 [PATCH net] virtio_net: Account for tx bytes and packets on sending xdp_frames Toshiaki Makita
2019-01-31 15:25 ` Michael S. Tsirkin
2019-01-31 17:45 ` David Miller
2019-01-31 20:15 ` Jesper Dangaard Brouer
2019-02-01 1:53 ` Toshiaki Makita
2019-02-02 21:27 ` David Ahern
2019-02-04 11:53 ` Jesper Dangaard Brouer
2019-02-05 3:13 ` David Ahern
2019-02-06 0:06 ` Saeed Mahameed
2019-02-06 13:48 ` Jesper Dangaard Brouer
2019-02-06 15:52 ` Jakub Kicinski
2019-02-07 7:48 ` Resource management for ndo_xdp_xmit (Was: [PATCH net] virtio_net: Account for tx bytes and packets on sending xdp_frames) Jesper Dangaard Brouer
2019-02-07 19:08 ` Saeed Mahameed
2019-02-08 16:55 ` Toke Høiland-Jørgensen [this message]
2019-02-08 22:49 ` Saeed Mahameed
2019-02-08 23:17 ` Saeed Mahameed
2019-02-09 0:18 ` Saeed Mahameed
2019-02-09 2:05 ` Jakub Kicinski
2019-02-09 16:56 ` Toke Høiland-Jørgensen
2019-02-09 16:56 ` Toke Høiland-Jørgensen
2019-02-08 16:02 ` [PATCH net] virtio_net: Account for tx bytes and packets on sending xdp_frames Jesper Dangaard Brouer
2019-04-18 14:24 ` Stats for XDP actions (was: Re: [PATCH net] virtio_net: Account for tx bytes and packets on sending xdp_frames) Toke Høiland-Jørgensen
2019-04-21 0:16 ` Stats for XDP actions David Ahern
2019-06-20 20:42 ` Toke Høiland-Jørgensen
2019-06-21 0:42 ` David Ahern
2019-06-21 13:57 ` Toke Høiland-Jørgensen
2019-02-04 4:18 ` [PATCH net] virtio_net: Account for tx bytes and packets on sending xdp_frames David Miller
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