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net/mlx5: Add support for enabling PTM PCI capability

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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: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20240730134055.1835261-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Carolina Jubran
2024-07-30 16:40:53 +03:00
committed by Jakub Kicinski
parent 7e45c1e9ed
commit bec6d85d43
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/main.c
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@@ -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);