Since workqueues are created per CPU, the works scheduled to this workqueues are run on the CPU they were assigned. It may result in overloaded CPU that is not able to handle virtchnl messages in relatively short time. Allocating workqueue with WQ_UNBOUND and WQ_HIGHPRI flags allows scheduler to queue virtchl messages on less loaded CPUs, what eliminates delays.
Reviewed-by: Alexander Lobakin <[email protected]> Signed-off-by: Milena Olech <[email protected]> --- drivers/net/ethernet/intel/idpf/idpf_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/idpf/idpf_main.c b/drivers/net/ethernet/intel/idpf/idpf_main.c index 9fe0940f81b0..afc39e894cd2 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_main.c +++ b/drivers/net/ethernet/intel/idpf/idpf_main.c @@ -220,8 +220,8 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_serv_wq_alloc; } - adapter->mbx_wq = alloc_workqueue("%s-%s-mbx", 0, 0, - dev_driver_string(dev), + adapter->mbx_wq = alloc_workqueue("%s-%s-mbx", WQ_UNBOUND | WQ_HIGHPRI, + 0, dev_driver_string(dev), dev_name(dev)); if (!adapter->mbx_wq) { dev_err(dev, "Failed to allocate mailbox workqueue\n"); -- 2.31.1
