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Message-Id: <20180515190615.23099-8-bjorn.topel@gmail.com>
Date: Tue, 15 May 2018 21:06:10 +0200
From: Björn Töpel <bjorn.topel@...il.com>
To: bjorn.topel@...il.com, magnus.karlsson@...il.com,
magnus.karlsson@...el.com, alexander.h.duyck@...el.com,
alexander.duyck@...il.com, john.fastabend@...il.com, ast@...com,
brouer@...hat.com, willemdebruijn.kernel@...il.com,
daniel@...earbox.net, mst@...hat.com, netdev@...r.kernel.org
Cc: michael.lundkvist@...csson.com, jesse.brandeburg@...el.com,
anjali.singhai@...el.com, qi.z.zhang@...el.com,
intel-wired-lan@...ts.osuosl.org
Subject: [RFC PATCH bpf-next 07/12] net: added netdevice operation for Tx
From: Magnus Karlsson <magnus.karlsson@...el.com>
Added ndo_xsk_async_xmit. This ndo "kicks" the netdev to start pull
userland Tx frames from a NAPI context.
Signed-off-by: Magnus Karlsson <magnus.karlsson@...el.com>
---
include/linux/netdevice.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2084536ad4af..8f4292dc6670 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1385,6 +1385,12 @@ struct net_device_ops {
int (*ndo_xdp_xmit)(struct net_device *dev,
struct xdp_frame *xdp);
void (*ndo_xdp_flush)(struct net_device *dev);
+ /* AF_XDP Tx function. NB! That in the PoC we take ownership
+ * of the XDP Tx rings, so you wont be able to XDP_REDIRECT
+ * there...
+ */
+ int (*ndo_xsk_async_xmit)(struct net_device *dev,
+ u32 queue_id);
};
/**
--
2.14.1
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