| Message ID | 20171124120411.7660-1-aleksey.makarov@cavium.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
| Series | [net-next] net: thunderx: Set max queue count taking XDP_TX into account | expand |
From: Aleksey Makarov <aleksey.makarov@cavium.com> Date: Fri, 24 Nov 2017 15:04:03 +0300 > From: Sunil Goutham <sgoutham@cavium.com> > > on T81 there are only 4 cores, hence setting max queue count to 4 > would leave nothing for XDP_TX. This patch fixes this by doubling > max queue count in above scenarios. > > Signed-off-by: Sunil Goutham <sgoutham@cavium.com> > Signed-off-by: cjacob <cjacob@caviumnetworks.com> > Signed-off-by: Aleksey Makarov <aleksey.makarov@cavium.com> Applied.
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index b82e28262c57..52b3a6044f85 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -1891,6 +1891,11 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) nic->pdev = pdev; nic->pnicvf = nic; nic->max_queues = qcount; + /* If no of CPUs are too low, there won't be any queues left + * for XDP_TX, hence double it. + */ + if (!nic->t88) + nic->max_queues *= 2; /* MAP VF's configuration registers */ nic->reg_base = pcim_iomap(pdev, PCI_CFG_REG_BAR_NUM, 0);