[Intel-wired-lan] [PATCH next-queue v1 2/3] igc: Enable PCIe PTM
Vinicius Costa Gomes
vinicius.gomes at intel.com
Fri Sep 25 23:28:33 UTC 2020
In practice, enabling PTM also sets the enabled_ptm flag in the PCI
device, the flag will be used for detecting if PTM is enabled before
adding support for the SYSOFFSET_PRECISE ioctl() (which is added by
implementing the getcrosststamp() PTP function).
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes at intel.com>
---
drivers/net/ethernet/intel/igc/igc_main.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 897e2d5514a1..56670ce14da8 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -10,6 +10,7 @@
#include <linux/ip.h>
#include <linux/pm_runtime.h>
#include <net/pkt_sched.h>
+#include <linux/pci.h>
#include <net/ipv6.h>
@@ -5021,6 +5022,10 @@ static int igc_probe(struct pci_dev *pdev,
pci_enable_pcie_error_reporting(pdev);
+ err = pci_enable_ptm(pdev, NULL);
+ if (err < 0)
+ dev_err(&pdev->dev, "PTM not supported\n");
+
pci_set_master(pdev);
err = -ENOMEM;
--
2.28.0
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