netdev - [PATCH v5 07/14] net/mlx5: Report PCIe link properties with pcie_print_link

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Message-ID: <152244393306.135666.8628641854997205700.stgit@bhelgaas-glaptop.roam.corp.google.com>
Date:   Fri, 30 Mar 2018 16:05:33 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Tal Gilboa <talgi@...lanox.com>
Cc:     Tariq Toukan <tariqt@...lanox.com>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Ariel Elior <ariel.elior@...ium.com>,
        Ganesh Goudar <ganeshgr@...lsio.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        everest-linux-l2@...ium.com, intel-wired-lan@...ts.osuosl.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org
Subject: [PATCH v5 07/14] net/mlx5: Report PCIe link properties with
 pcie_print_link_status()

From: Tal Gilboa <talgi@...lanox.com>

Use pcie_print_link_status() to report PCIe link speed and possible
limitations.

Signed-off-by: Tal Gilboa <talgi@...lanox.com>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
Reviewed-by: Tariq Toukan <tariqt@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 2ef641c91c26..622f02d34aae 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1043,6 +1043,10 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv,
 	dev_info(&pdev->dev, "firmware version: %d.%d.%d\n", fw_rev_maj(dev),
 		 fw_rev_min(dev), fw_rev_sub(dev));
 
+	/* Only PFs hold the relevant PCIe information for this query */
+	if (mlx5_core_is_pf(dev))
+		pcie_print_link_status(dev->pdev);
+
 	/* on load removing any previous indication of internal error, device is
 	 * up
 	 */