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authorChris Metcalf <cmetcalf@tilera.com>2013-08-02 16:12:49 -0400
committerChris Metcalf <cmetcalf@tilera.com>2013-08-06 12:55:28 -0400
commita3c4f2fb26974b5134861af8f7593040ae61a1f4 (patch)
tree78b2667d31072cda4521967f623cf3eea1a88edf /arch
parent90d9dd66957a744831146dbb1a9e4f96a9106100 (diff)
tile PCI RC: gentler warning for missing plug-in PCI
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/tile/include/hv/drv_trio_intf.h5
-rw-r--r--arch/tile/kernel/pci_gx.c10
2 files changed, 11 insertions, 4 deletions
diff --git a/arch/tile/include/hv/drv_trio_intf.h b/arch/tile/include/hv/drv_trio_intf.h
index ef9f3f52ee27..ec643a02b4c5 100644
--- a/arch/tile/include/hv/drv_trio_intf.h
+++ b/arch/tile/include/hv/drv_trio_intf.h
@@ -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;
};
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index e0d666483e13..bf8c69de2792 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c
@@ -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;
}