From: Sunil Goutham <sgout...@cavium.com>
[ Upstream commit 87de083857aa269fb171ef0b39696b2888361c58 ]
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 <sgout...@cavium.com>
Signed-off-by: cjacob <cja...@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.maka...@cavium.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
drivers/net/ethernet/cavium/thunder/nicvf_main.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index a063c36c4c58..3e6286d402ef 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -1833,6 +1833,11 @@ 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);
--
2.14.1
