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Message-ID: <1369240487-18834-4-git-send-email-wei.liu2@citrix.com> Date: Wed, 22 May 2013 17:34:47 +0100 From: Wei Liu <wei.liu2@...rix.com> To: <xen-devel@...ts.xen.org>, <netdev@...r.kernel.org> CC: <jbeulich@...e.com>, <ian.campbell@...rix.com>, <annie.li@...cle.com>, <konrad.wilk@...cle.com>, <david.vrabel@...rix.com>, Wei Liu <wei.liu2@...rix.com> Subject: [PATCH net-next V3 3/3] xen: netif.h: document feature-split-event-channels This patch synchronises documentation for feature-split-event-channels from Xen canonical header file. Signed-off-by: Wei Liu <wei.liu2@...rix.com> --- include/xen/interface/io/netif.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h index 3ef3fe0..eb262e3 100644 --- a/include/xen/interface/io/netif.h +++ b/include/xen/interface/io/netif.h @@ -38,6 +38,18 @@ * that it cannot safely queue packets (as it may not be kicked to send them). */ + /* + * "feature-split-event-channels" is introduced to separate guest TX + * and RX notificaion. Backend either doesn't support this feature or + * advertise it via xenstore as 0 (disabled) or 1 (enabled). + * + * To make use of this feature, frontend should allocate two event + * channels for TX and RX, advertise them to backend as + * "event-channel-tx" and "event-channel-rx" respectively. If frontend + * doesn't want to use this feature, it just writes "event-channel" + * node as before. + */ + /* * This is the 'wire' format for packets: * Request 1: xen_netif_tx_request -- XEN_NETTXF_* (any flags) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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