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tile PCI RC: gentler warning for missing plug-in PCI

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Besides using pr_info() to print the linkdown status for a plug-in
slot, add extra indication that this is expected if the slot is empty.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Chris Metcalf 2013-08-02 16:12:49 -04:00
parent 90d9dd6695
commit a3c4f2fb26
2 changed files with 11 additions and 4 deletions
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5
arch/tile/include/hv/drv_trio_intf.h
View File

@ -64,8 +64,9 @@ struct pcie_port_property
* will not consider it an error if the link comes up as a x8 link. */
uint8_t allow_x8: 1;
/** Reserved. */
uint8_t reserved: 1;
/** If true, this link is connected to a device which may or may not
* be present. */
uint8_t removable: 1;
};

10
arch/tile/kernel/pci_gx.c
View File

@ -729,8 +729,14 @@ int __init pcibios_init(void)
__gxio_mmio_read(trio_context->mmio_base_mac +
reg_offset);
if (!port_status.dl_up) {
pr_err("PCI: link is down, MAC %d on TRIO %d\n",
mac, trio_index);
if (pcie_ports[trio_index][mac].removable) {
pr_info("PCI: link is down, MAC %d on TRIO %d\n",
mac, trio_index);
pr_info("This is expected if no PCIe card"
" is connected to this link\n");
} else
pr_err("PCI: link is down, MAC %d on TRIO %d\n",
mac, trio_index);
continue;
}