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i40e: Fix ADQ rate limiting for PF

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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: a9ce82f744 ("i40e: Enable 'channel' mode in mqprio for TC configs")
Signed-off-by: Przemyslaw Patynowski <przemyslawx.patynowski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Przemyslaw Patynowski 2022-08-09 10:57:44 +02:00 • committed by Tony Nguyen
parent e7506d344b
commit 45bb006d3c
2 changed files with 5 additions and 1 deletions
drivers/net/ethernet/intel/i40e
i40e_main.ci40e_txrx.c

3
drivers/net/ethernet/intel/i40e/i40e_main.c
View file

@ -6659,6 +6659,9 @@ static int i40e_configure_queue_channels(struct i40e_vsi *vsi)
vsi->tc_seid_map[i] = ch->seid; vsi->tc_seid_map[i] = ch->seid;
} }
} }
/* reset to reconfigure TX queue contexts */
i40e_do_reset(vsi->back, I40E_PF_RESET_FLAG, true);
return ret; return ret;
err_free: err_free:

3
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View file

@ -3688,7 +3688,8 @@ u16 i40e_lan_select_queue(struct net_device *netdev,
u8 prio; u8 prio;
/* is DCB enabled at all? */ /* 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); return netdev_pick_tx(netdev, skb, sb_dev);
prio = skb->priority; prio = skb->priority;