This is a note to let you know that I've just added the patch titled

be2net: restore properly promisc mode after queues reconfiguration

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: be2net-restore-properly-promisc-mode-after-queues-reconfiguration.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Sun Jan 28 17:37:09 CET 2018

From: Ivan Vecera cera@cera.cz Date: Fri, 19 Jan 2018 20:23:50 +0100 Subject: be2net: restore properly promisc mode after queues reconfiguration

From: Ivan Vecera cera@cera.cz

[ Upstream commit 52acf06451930eb4cefabd5ecea56e2d46c32f76 ]

The commit 622190669403 ("be2net: Request RSS capability of Rx interface depending on number of Rx rings") modified be_update_queues() so the IFACE (HW representation of the netdevice) is destroyed and then re-created. This causes a regression because potential promiscuous mode is not restored properly during be_open() because the driver thinks that the HW has promiscuous mode already enabled.

Note that Lancer is not affected by this bug because RX-filter flags are disabled during be_close() for this chipset.

Cc: Sathya Perla sathya.perla@broadcom.com Cc: Ajit Khaparde ajit.khaparde@broadcom.com Cc: Sriharsha Basavapatna sriharsha.basavapatna@broadcom.com Cc: Somnath Kotur somnath.kotur@broadcom.com

Fixes: 622190669403 ("be2net: Request RSS capability of Rx interface depending on number of Rx rings") Signed-off-by: Ivan Vecera ivecera@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/emulex/benet/be_main.c | 9 +++++++++ 1 file changed, 9 insertions(+)

--- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -4733,6 +4733,15 @@ int be_update_queues(struct be_adapter *

be_schedule_worker(adapter);

+ /* + * The IF was destroyed and re-created. We need to clear + * all promiscuous flags valid for the destroyed IF. + * Without this promisc mode is not restored during + * be_open() because the driver thinks that it is + * already enabled in HW. + */ + adapter->if_flags &= ~BE_IF_FLAGS_ALL_PROMISCUOUS; + if (netif_running(netdev)) status = be_open(netdev);

Patches currently in stable-queue which might be from cera@cera.cz are

queue-4.9/be2net-restore-properly-promisc-mode-after-queues-reconfiguration.patch