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tile: use PCI define for Max_Read_Request_Size

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Replace a magic number with a PCI #define symbol.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Chris Metcalf <cmetcalf@ezchip.com>
This commit is contained in:
Rafał Miłecki 2015-01-26 18:06:12 +01:00 committed by Bjorn Helgaas
parent b33f87c7e6
commit ff59887f2d
1 changed files with 2 additions and 2 deletions
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4
arch/tile/kernel/pci.c
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@ -245,7 +245,7 @@ static void fixup_read_and_payload_sizes(void)
{
struct pci_dev *dev = NULL;
int smallest_max_payload = 0x1; /* Tile maxes out at 256 bytes. */
int max_read_size = 0x2; /* Limit to 512 byte reads. */
int max_read_size = PCI_EXP_DEVCTL_READRQ_512B;
u16 new_values;
/* Scan for the smallest maximum payload size. */
@ -258,7 +258,7 @@ static void fixup_read_and_payload_sizes(void)
}
/* Now, set the max_payload_size for all devices to that value. */
new_values = (max_read_size << 12) | (smallest_max_payload << 5);
new_values = max_read_size | (smallest_max_payload << 5);
for_each_pci_dev(dev)
pcie_capability_clear_and_set_word(dev, PCI_EXP_DEVCTL,
PCI_EXP_DEVCTL_PAYLOAD | PCI_EXP_DEVCTL_READRQ,