提交 75cb3426 编写于 作者: H Hidetoshi Seto 提交者: Jesse Barnes

PCI MSI: MSI-X cleanup, msix_program_entries()

Cleanup based on the prototype from Matthew Milcox.
Reviewed-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
上级 5a05a9d8
......@@ -447,6 +447,24 @@ static void __iomem *msix_map_region(struct pci_dev *dev, unsigned pos,
return ioremap_nocache(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE);
}
static void msix_program_entries(struct pci_dev *dev,
struct msix_entry *entries)
{
struct msi_desc *entry;
int i = 0;
list_for_each_entry(entry, &dev->msi_list, list) {
int offset = entries[i].entry * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_VECTOR_CTRL;
entries[i].vector = entry->irq;
set_irq_msi(entry->irq, entry);
entry->masked = readl(entry->mask_base + offset);
msix_mask_irq(entry, 1);
i++;
}
}
/**
* msix_capability_init - configure device's MSI-X capability
* @dev: pointer to the pci_dev data structure of MSI-X device function
......@@ -511,16 +529,7 @@ static int msix_capability_init(struct pci_dev *dev,
control |= PCI_MSIX_FLAGS_MASKALL | PCI_MSIX_FLAGS_ENABLE;
pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control);
i = 0;
list_for_each_entry(entry, &dev->msi_list, list) {
entries[i].vector = entry->irq;
set_irq_msi(entry->irq, entry);
j = entries[i].entry;
entry->masked = readl(base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_VECTOR_CTRL);
msix_mask_irq(entry, 1);
i++;
}
msix_program_entries(dev, entries);
/* Set MSI-X enabled bits and unmask the function */
pci_intx_for_msi(dev, 0);
......
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