diff options
Diffstat (limited to 'hw/msix.c')
| -rw-r--r-- | hw/msix.c | 40 |
1 files changed, 15 insertions, 25 deletions
@@ -16,9 +16,6 @@ #include "pci.h" #include "range.h" -/* MSI-X capability structure */ -#define MSIX_TABLE_OFFSET 4 -#define MSIX_PBA_OFFSET 8 #define MSIX_CAP_LENGTH 12 /* MSI enable bit and maskall bit are in byte 1 in FLAGS register */ @@ -26,14 +23,6 @@ #define MSIX_ENABLE_MASK (PCI_MSIX_FLAGS_ENABLE >> 8) #define MSIX_MASKALL_MASK (PCI_MSIX_FLAGS_MASKALL >> 8) -/* MSI-X table format */ -#define MSIX_MSG_ADDR 0 -#define MSIX_MSG_UPPER_ADDR 4 -#define MSIX_MSG_DATA 8 -#define MSIX_VECTOR_CTRL 12 -#define MSIX_ENTRY_SIZE 16 -#define MSIX_VECTOR_MASK 0x1 - /* How much space does an MSIX table need. */ /* The spec requires giving the table structure * a 4K aligned region all by itself. */ @@ -82,9 +71,9 @@ static int msix_add_config(struct PCIDevice *pdev, unsigned short nentries, pci_set_word(config + PCI_MSIX_FLAGS, nentries - 1); /* Table on top of BAR */ - pci_set_long(config + MSIX_TABLE_OFFSET, bar_size | bar_nr); + pci_set_long(config + PCI_MSIX_TABLE, bar_size | bar_nr); /* Pending bits on top of that */ - pci_set_long(config + MSIX_PBA_OFFSET, (bar_size + MSIX_PAGE_PENDING) | + pci_set_long(config + PCI_MSIX_PBA, (bar_size + MSIX_PAGE_PENDING) | bar_nr); pdev->msix_cap = config_offset; /* Make flags bit writable. */ @@ -140,9 +129,10 @@ static int msix_function_masked(PCIDevice *dev) static int msix_is_masked(PCIDevice *dev, int vector) { - unsigned offset = vector * MSIX_ENTRY_SIZE + MSIX_VECTOR_CTRL; + unsigned offset = + vector * PCI_MSIX_ENTRY_SIZE + PCI_MSIX_ENTRY_VECTOR_CTRL; return msix_function_masked(dev) || - dev->msix_table_page[offset] & MSIX_VECTOR_MASK; + dev->msix_table_page[offset] & PCI_MSIX_ENTRY_CTRL_MASKBIT; } static void msix_handle_mask_update(PCIDevice *dev, int vector) @@ -184,7 +174,7 @@ static void msix_mmio_writel(void *opaque, target_phys_addr_t addr, { PCIDevice *dev = opaque; unsigned int offset = addr & (MSIX_PAGE_SIZE - 1) & ~0x3; - int vector = offset / MSIX_ENTRY_SIZE; + int vector = offset / PCI_MSIX_ENTRY_SIZE; pci_set_long(dev->msix_table_page + offset, val); msix_handle_mask_update(dev, vector); } @@ -208,7 +198,7 @@ void msix_mmio_map(PCIDevice *d, int region_num, pcibus_t addr, pcibus_t size, int type) { uint8_t *config = d->config + d->msix_cap; - uint32_t table = pci_get_long(config + MSIX_TABLE_OFFSET); + uint32_t table = pci_get_long(config + PCI_MSIX_TABLE); uint32_t offset = table & ~(MSIX_PAGE_SIZE - 1); /* TODO: for assigned devices, we'll want to make it possible to map * pending bits separately in case they are in a separate bar. */ @@ -226,8 +216,9 @@ static void msix_mask_all(struct PCIDevice *dev, unsigned nentries) { int vector; for (vector = 0; vector < nentries; ++vector) { - unsigned offset = vector * MSIX_ENTRY_SIZE + MSIX_VECTOR_CTRL; - dev->msix_table_page[offset] |= MSIX_VECTOR_MASK; + unsigned offset = + vector * PCI_MSIX_ENTRY_SIZE + PCI_MSIX_ENTRY_VECTOR_CTRL; + dev->msix_table_page[offset] |= PCI_MSIX_ENTRY_CTRL_MASKBIT; } } @@ -313,7 +304,7 @@ void msix_save(PCIDevice *dev, QEMUFile *f) return; } - qemu_put_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE); + qemu_put_buffer(f, dev->msix_table_page, n * PCI_MSIX_ENTRY_SIZE); qemu_put_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8); } @@ -327,7 +318,7 @@ void msix_load(PCIDevice *dev, QEMUFile *f) } msix_free_irq_entries(dev); - qemu_get_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE); + qemu_get_buffer(f, dev->msix_table_page, n * PCI_MSIX_ENTRY_SIZE); qemu_get_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8); } @@ -355,7 +346,7 @@ uint32_t msix_bar_size(PCIDevice *dev) /* Send an MSI-X message */ void msix_notify(PCIDevice *dev, unsigned vector) { - uint8_t *table_entry = dev->msix_table_page + vector * MSIX_ENTRY_SIZE; + uint8_t *table_entry = dev->msix_table_page + vector * PCI_MSIX_ENTRY_SIZE; uint64_t address; uint32_t data; @@ -366,9 +357,8 @@ void msix_notify(PCIDevice *dev, unsigned vector) return; } - address = pci_get_long(table_entry + MSIX_MSG_UPPER_ADDR); - address = (address << 32) | pci_get_long(table_entry + MSIX_MSG_ADDR); - data = pci_get_long(table_entry + MSIX_MSG_DATA); + address = pci_get_quad(table_entry + PCI_MSIX_ENTRY_LOWER_ADDR); + data = pci_get_long(table_entry + PCI_MSIX_ENTRY_DATA); stl_phys(address, data); } |