From 45bb006d3c924b1201ed43c87a96b437662dcaa8 Mon Sep 17 00:00:00 2001 From: Przemyslaw Patynowski Date: Tue, 9 Aug 2022 10:57:44 +0200 Subject: i40e: Fix ADQ rate limiting for PF Fix HW rate limiting for ADQ. Fallback to kernel queue selection for ADQ, as it is network stack that decides which queue to use for transmit with ADQ configured. Reset PF after creation of VMDq2 VSIs required for ADQ, as to reprogram TX queue contexts in i40e_configure_tx_ring. Without this patch PF would limit TX rate only according to TC0. Fixes: a9ce82f744dc ("i40e: Enable 'channel' mode in mqprio for TC configs") Signed-off-by: Przemyslaw Patynowski Signed-off-by: Jan Sokolowski Tested-by: Bharathi Sreenivas Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.c') diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index d4226161a3ef..69e67eb6aea7 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -3688,7 +3688,8 @@ u16 i40e_lan_select_queue(struct net_device *netdev, u8 prio; /* is DCB enabled at all? */ - if (vsi->tc_config.numtc == 1) + if (vsi->tc_config.numtc == 1 || + i40e_is_tc_mqprio_enabled(vsi->back)) return netdev_pick_tx(netdev, skb, sb_dev); prio = skb->priority; -- cgit