From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Toshiaki Makita <toshiaki.makita1@gmail.com>
Cc: brouer@redhat.com, netdev@vger.kernel.org,
Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Subject: Re: [PATCH RFC 2/9] veth: Add driver XDP
Date: Wed, 25 Apr 2018 22:39:41 +0200 [thread overview]
Message-ID: <20180425223852.0be2fd67@brouer.com> (raw)
In-Reply-To: <20180424143923.26519-3-toshiaki.makita1@gmail.com>
On Tue, 24 Apr 2018 23:39:16 +0900
Toshiaki Makita <toshiaki.makita1@gmail.com> wrote:
> This is basic implementation of veth driver XDP.
>
> Incoming packets are sent from the peer veth device in the form of skb,
> so this is generally doing the same thing as generic XDP.
I'm unsure that context you are calling veth_xdp_rcv_skb() from. The
XDP (RX side) depend heavily on the protection provided by NAPI context.
It looks like you are adding NAPI handler later.
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2018-04-25 20:39 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-24 14:39 [PATCH RFC 0/9] veth: Driver XDP Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 1/9] net: Export skb_headers_offset_update and skb_copy_header Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 2/9] veth: Add driver XDP Toshiaki Makita
2018-04-25 20:39 ` Jesper Dangaard Brouer [this message]
2018-04-26 10:46 ` Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 3/9] veth: Avoid drops by oversized packets when XDP is enabled Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 4/9] veth: Use NAPI for XDP Toshiaki Makita
2018-05-01 7:50 ` Jesper Dangaard Brouer
2018-05-01 8:02 ` Toshiaki Makita
2018-05-01 8:43 ` Jesper Dangaard Brouer
2018-05-02 3:37 ` Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 5/9] veth: Handle xdp_frame in xdp napi ring Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 6/9] veth: Add ndo_xdp_xmit Toshiaki Makita
2018-04-25 20:24 ` Jesper Dangaard Brouer
2018-04-26 10:52 ` Toshiaki Makita
2018-04-30 17:27 ` Jesper Dangaard Brouer
2018-05-01 1:02 ` Toshiaki Makita
2018-05-01 8:14 ` Jesper Dangaard Brouer
2018-05-02 3:33 ` Toshiaki Makita
2018-05-02 5:56 ` Jesper Dangaard Brouer
2018-04-24 14:39 ` [PATCH RFC 7/9] veth: Add XDP TX and REDIRECT Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 8/9] veth: Avoid per-packet spinlock of XDP napi ring on dequeueing Toshiaki Makita
2018-04-24 14:39 ` [PATCH RFC 9/9] veth: Avoid per-packet spinlock of XDP napi ring on enqueueing Toshiaki Makita
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