This is a note to let you know that I've just added the patch titled
cxgb4: Fix netdev_features flag
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: cxgb4-fix-netdev_features-flag.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 Mon Apr 9 17:09:24 CEST 2018
From: Arjun Vynipadath arjun@chelsio.com Date: Tue, 30 May 2017 13:30:24 +0530 Subject: cxgb4: Fix netdev_features flag
From: Arjun Vynipadath arjun@chelsio.com
[ Upstream commit 90592b9a35836bacd34d92a3aba7958756b6a7c0 ]
GRO is not supported by Chelsio HW when rx_csum is disabled. Update the netdev features flag when rx_csum is modified.
Signed-off-by: Arjun Vynipadath arjun@chelsio.com Signed-off-by: Steve Wise swise@opengridcomputing.com Signed-off-by: Ganesh Goudar ganeshgr@chelsio.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -2742,6 +2742,16 @@ static int cxgb_setup_tc(struct net_devi return -EOPNOTSUPP; }
+static netdev_features_t cxgb_fix_features(struct net_device *dev, + netdev_features_t features) +{ + /* Disable GRO, if RX_CSUM is disabled */ + if (!(features & NETIF_F_RXCSUM)) + features &= ~NETIF_F_GRO; + + return features; +} + static const struct net_device_ops cxgb4_netdev_ops = { .ndo_open = cxgb_open, .ndo_stop = cxgb_close, @@ -2766,6 +2776,7 @@ static const struct net_device_ops cxgb4 #endif .ndo_set_tx_maxrate = cxgb_set_tx_maxrate, .ndo_setup_tc = cxgb_setup_tc, + .ndo_fix_features = cxgb_fix_features, };
#ifdef CONFIG_PCI_IOV
Patches currently in stable-queue which might be from arjun@chelsio.com are
queue-4.9/cxgb4-fw-upgrade-fixes.patch queue-4.9/cxgb4-fix-netdev_features-flag.patch queue-4.9/cxgb4vf-fix-sge-fl-buffer-initialization-logic-for-64k-pages.patch