Commit bec6d85d authored by Carolina Jubran's avatar Carolina Jubran Committed by Jakub Kicinski
Browse files

net/mlx5: Add support for enabling PTM PCI capability 



Since the kernel doesn't support enabling Precision Time Measurement
for an endpoint device, enable the PTM PCI capability in the driver.

Signed-off-by: default avatarCarolina Jubran <cjubran@nvidia.com>
Signed-off-by: default avatarTariq Toukan <tariqt@nvidia.com>
Reviewed-by: default avatarWojciech Drewek <wojciech.drewek@intel.com>
Tested-by: default avatarVadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20240730134055.1835261-3-tariqt@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 7e45c1e9

drivers/net/ethernet/mellanox/mlx5/core/main.c

+6 −0
Original line number Diff line number Diff line
@@ -923,6 +923,11 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev, 
	}



	mlx5_pci_vsc_init(dev);



	err = pci_enable_ptm(pdev, NULL);

	if (err)

		mlx5_core_info(dev, "PTM is not supported by PCIe\n");



	return 0;



err_clr_master:
@@ -939,6 +944,7 @@ static void mlx5_pci_close(struct mlx5_core_dev *dev) 
	 * before removing the pci bars

	 */

	mlx5_drain_health_wq(dev);

	pci_disable_ptm(dev->pdev);

	iounmap(dev->iseg);

	release_bar(dev->pdev);

	mlx5_pci_disable_device(dev);