From: Alan Brady <alan.brady@intel.com>
Date: Mon, 22 Jan 2018 12:00:33 -0500
Subject: i40e: broadcast filters can trigger overflow promiscuous
Patch-mainline: v4.17-rc1
Git-commit: a48350c29be1bde064d1135e05c64c84098a030d
References: bsc#1101816 FATE#325147 FATE#325149
When adding a bunch of VLANs to all the ports on a device, it's possible
to run out of space for broadcast filters. The driver should trigger
overflow promiscuous in this circumstance to prevent traffic from being
unexpectedly dropped.
Signed-off-by: Alan Brady <alan.brady@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2004,11 +2004,13 @@ i40e_aqc_broadcast_filter(struct i40e_vs
NULL);
}
- if (aq_ret)
+ if (aq_ret) {
+ set_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state);
dev_warn(&vsi->back->pdev->dev,
- "Error %s setting broadcast promiscuous mode on %s\n",
+ "Error %s, forcing overflow promiscuous on %s\n",
i40e_aq_str(hw, hw->aq.asq_last_status),
vsi_name);
+ }
return aq_ret;
}