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authorMichael Brown2015-03-06 18:19:09 +0100
committerMichael Brown2015-03-09 09:52:03 +0100
commit3eb91209d99b2bddc23ee6a1d81d025f0a6545eb (patch)
tree7a55fe2397c00452df85618a288d854b52bc7242 /src/drivers/net/netfront.c
parent[xhci] Undo PCH-specific quirk fixes when removing device (diff)
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[xen] Set the "feature-rx-notify" flag for netfront devices
iPXE already sends RX notifications to the backend when needed, but does not set the "feature-rx-notify" flag. As of XenServer 6.5, this flag is mandatory and omitting it will cause the backend to fail. Fix by setting the "feature-rx-notify" flag, to inform the backend that we will send notifications. Reported-by: Shalom Bhooshi <shalom.bhooshi@citrix.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/drivers/net/netfront.c')
-rw-r--r--src/drivers/net/netfront.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/drivers/net/netfront.c b/src/drivers/net/netfront.c
index 74c6d27c..6a1e4fc1 100644
--- a/src/drivers/net/netfront.c
+++ b/src/drivers/net/netfront.c
@@ -597,6 +597,11 @@ static int netfront_open ( struct net_device *netdev ) {
"feature-no-csum-offload" ) ) != 0 )
goto err_feature_no_csum_offload;
+ /* Inform backend that we will send notifications for RX requests */
+ if ( ( rc = netfront_write_flag ( netfront,
+ "feature-rx-notify" ) ) != 0 )
+ goto err_feature_rx_notify;
+
/* Set state to Connected */
if ( ( rc = xenbus_set_state ( xendev, XenbusStateConnected ) ) != 0 ) {
DBGC ( netfront, "NETFRONT %s could not set state=\"%d\": %s\n",
@@ -622,6 +627,8 @@ static int netfront_open ( struct net_device *netdev ) {
err_backend_wait:
netfront_reset ( netfront );
err_set_state:
+ netfront_rm ( netfront, "feature-rx-notify" );
+ err_feature_rx_notify:
netfront_rm ( netfront, "feature-no-csum-offload" );
err_feature_no_csum_offload:
netfront_rm ( netfront, "request-rx-copy" );
@@ -665,6 +672,7 @@ static void netfront_close ( struct net_device *netdev ) {
}
/* Delete flags */
+ netfront_rm ( netfront, "feature-rx-notify" );
netfront_rm ( netfront, "feature-no-csum-offload" );
netfront_rm ( netfront, "request-rx-copy" );