From: Pavan Chebbi pavan.chebbi@broadcom.com
[ Upstream commit c1c2d77408022a398a1a7c51cf20488c922629de ]
In rare conditions like two stage OS installation, the ethtool's get_channels function may be called when the device is in D3 state, leading to uncorrectable PCI error. Check netif_running() first before making any query to FW which involves writing to BAR.
Fixes: db4723b3cd2d ("bnxt_en: Check max_tx_scheduler_inputs value from firmware.") Signed-off-by: Pavan Chebbi pavan.chebbi@broadcom.com Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 1f512e7c3d434..de9b34a255cf1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -769,7 +769,7 @@ static void bnxt_get_channels(struct net_device *dev, int max_tx_sch_inputs;
/* Get the most up-to-date max_tx_sch_inputs. */ - if (BNXT_NEW_RM(bp)) + if (netif_running(dev) && BNXT_NEW_RM(bp)) bnxt_hwrm_func_resc_qcaps(bp, false); max_tx_sch_inputs = hw_resc->max_tx_sch_inputs;