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net/enic: explicitly disable overlay offload

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Reopening vNIC does not automatically disable overlay offload. If it
is previously enabled, it remains enabled even when the user restarts
DPDK and requests overlay offload to be disabled via devarg
disable-overlay=1. So explicitly disable overlay offload when
requested.

Fixes: 93fb21fdbe23 ("net/enic: enable overlay offload for VXLAN and GENEVE")
Cc: stable@dpdk.org

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>
This commit is contained in:
Hyong Youb Kim 2018-09-25 19:54:22 -07:00 committed by Ferruh Yigit
parent 70401fd778
commit 308b514b8e
1 changed files with 13 additions and 0 deletions
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13
drivers/net/enic/enic_main.c
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@ -1652,6 +1652,19 @@ static int enic_dev_init(struct enic *enic)
vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */ vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
enic->overlay_offload = false; enic->overlay_offload = false;
if (enic->disable_overlay && enic->vxlan) {
/*
* Explicitly disable overlay offload as the setting is
* sticky, and resetting vNIC does not disable it.
*/
if (vnic_dev_overlay_offload_ctrl(enic->vdev,
OVERLAY_FEATURE_VXLAN,
OVERLAY_OFFLOAD_DISABLE)) {
dev_err(enic, "failed to disable overlay offload\n");
} else {
dev_info(enic, "Overlay offload is disabled\n");
}
}
if (!enic->disable_overlay && enic->vxlan && if (!enic->disable_overlay && enic->vxlan &&
/* 'VXLAN feature' enables VXLAN, NVGRE, and GENEVE. */ /* 'VXLAN feature' enables VXLAN, NVGRE, and GENEVE. */
vnic_dev_overlay_offload_ctrl(enic->vdev, vnic_dev_overlay_offload_ctrl(enic->vdev,