diff options
| author |   Ajit Khaparde <ajit.khaparde@broadcom.com> | 2016-05-15 03:04:45 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-05-15 13:35:47 -0400 |
| commit | 90c4f788f6c08aaa52edbb47a817403376523375 (patch) | |
| tree | c9f0dfe4aa9d96230b3d9890b81545f7776fc4f8 | |
| parent | bnxt_en: Add Support for ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPRO (diff) | |
| download | linux-dev-90c4f788f6c08aaa52edbb47a817403376523375.tar.xz linux-dev-90c4f788f6c08aaa52edbb47a817403376523375.zip | |
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: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 448ab296ddb2..1171ad14d323 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -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: |