ixgbe: Make queue pairs on single MSI-X interrupts
This patch pairs similar-numbered Rx and Tx queues onto a single MSI-X vector. For example, Tx queue 0 and Rx queue 0's interrupt with be ethX-RxTx-0. This allows for more efficient cleanup, since fewer interrupts will be firing during device operation. It also helps with a cleaner CPU affinity for IRQ affinity. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
8a0717f30c
commit
342bde1b70
1 changed files with 2 additions and 2 deletions
|
@ -3626,10 +3626,10 @@ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter)
|
|||
* It's easy to be greedy for MSI-X vectors, but it really
|
||||
* doesn't do us much good if we have a lot more vectors
|
||||
* than CPU's. So let's be conservative and only ask for
|
||||
* (roughly) twice the number of vectors as there are CPU's.
|
||||
* (roughly) the same number of vectors as there are CPU's.
|
||||
*/
|
||||
v_budget = min(adapter->num_rx_queues + adapter->num_tx_queues,
|
||||
(int)(num_online_cpus() * 2)) + NON_Q_VECTORS;
|
||||
(int)num_online_cpus()) + NON_Q_VECTORS;
|
||||
|
||||
/*
|
||||
* At the same time, hardware can only support a maximum of
|
||||
|
|
Reference in a new issue