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Commit 90c4f788 authored by Ajit Khaparde's avatar Ajit Khaparde Committed by David S. Miller
Browse files

bnxt_en: Report PCIe link speed and width during driver load 



Add code to log a message during driver load indicating PCIe link
speed and width.

The log message will look like this:
bnxt_en 0000:86:00.0 eth0: PCIe: Speed 8.0GT/s Width x8

Signed-off-by: default avatarAjit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 42ee18fe

drivers/net/ethernet/broadcom/bnxt/bnxt.c

+18 −0
Original line number Diff line number Diff line
@@ -6261,6 +6261,22 @@ static int bnxt_set_dflt_rings(struct bnxt *bp) 
	return rc;

}



static void bnxt_parse_log_pcie_link(struct bnxt *bp)

{

	enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN;

	enum pci_bus_speed speed = PCI_SPEED_UNKNOWN;



	if (pcie_get_minimum_link(bp->pdev, &speed, &width) ||

	    speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN)

		netdev_info(bp->dev, "Failed to determine PCIe Link Info\n");

	else

		netdev_info(bp->dev, "PCIe: Speed %s Width x%d\n",

			    speed == PCIE_SPEED_2_5GT ? "2.5GT/s" :

			    speed == PCIE_SPEED_5_0GT ? "5.0GT/s" :

			    speed == PCIE_SPEED_8_0GT ? "8.0GT/s" :

			    "Unknown", width);

}



static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)

{

	static int version_printed;
@@ -6381,6 +6397,8 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
		    board_info[ent->driver_data].name,

		    (long)pci_resource_start(pdev, 0), dev->dev_addr);



	bnxt_parse_log_pcie_link(bp);



	return 0;



init_err: