diff options
| author | Bjorn Helgaas | 2015-10-29 17:35:40 -0500 |
|---|---|---|
| committer | Bjorn Helgaas | 2015-10-29 17:35:40 -0500 |
| commit | 597becb4adb7d57b8e9d857a68f764ce96a141b8 (patch) | |
| tree | 6ba5133f7d4c9be8b9ec7cfbb6bd48653d093a78 | |
| parent | 26635112d4d057c9ea38f6284423a30a41a09240 (diff) | |
PCI: Expand Enhanced Allocation BAR output
An Enhanced Allocation Capability entry with BEI 0 fills in
dev->resource[0] just like a real BAR 0 would, but non-EA experts might not
connect "EA - BEI 0" with BAR 0.
Decode the EA jargon a little bit, e.g., change this:
pci 0002:01:00.0: EA - BEI 0, Prop 0x00: [mem 0x84300000-0x84303fff]
to this:
pci 0002:01:00.0: BAR 0: [mem 0x84300000-0x84303fff] (from Enhanced Allocation, properties 0x00)
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| -rw-r--r-- | drivers/pci/pci.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e8330b68cecd..3a1454e6dd4a 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2293,8 +2293,20 @@ static int pci_ea_read(struct pci_dev *dev, int offset) res->start = start; res->end = end; res->flags = flags; - dev_printk(KERN_DEBUG, &dev->dev, "EA - BEI %2u, Prop 0x%02x: %pR\n", - bei, prop, res); + + if (bei <= PCI_EA_BEI_BAR5) + dev_printk(KERN_DEBUG, &dev->dev, "BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", + bei, res, prop); + else if (bei == PCI_EA_BEI_ROM) + dev_printk(KERN_DEBUG, &dev->dev, "ROM: %pR (from Enhanced Allocation, properties %#02x)\n", + res, prop); + else if (bei >= PCI_EA_BEI_VF_BAR0 && bei <= PCI_EA_BEI_VF_BAR5) + dev_printk(KERN_DEBUG, &dev->dev, "VF BAR %d: %pR (from Enhanced Allocation, properties %#02x)\n", + bei - PCI_EA_BEI_VF_BAR0, res, prop); + else + dev_printk(KERN_DEBUG, &dev->dev, "BEI %d res: %pR (from Enhanced Allocation, properties %#02x)\n", + bei, res, prop); + out: return offset + ent_size; } |