Consolidate MSI-X related definitions

Eliminate redundant ones, fix names (where so far inappropriately
referring to capability structure fields the don't really relate to),
use symbolic names instead of raw numbers, and remove an unusable one.

No functional change intended.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

diff --git a/xen/arch/x86/msi.c b/xen/arch/x86/msi.c
index ec7e5c9c0637cc5af13e67562b6d530b14e0b4c8..5ff709471acbab748c4e862e62d202dad96468ea 100644 (file)
--- a/xen/arch/x86/msi.c
+++ b/xen/arch/x86/msi.c
@@ -560,8 +560,8 @@ static int msix_capability_init(struct pci_dev *dev,
 
     /* Request & Map MSI-X table region */
     table_offset = pci_conf_read32(bus, slot, func, msix_table_offset_reg(pos));
-    bir = (u8)(table_offset & PCI_MSIX_FLAGS_BIRMASK);
-    table_offset &= ~PCI_MSIX_FLAGS_BIRMASK;
+    bir = (u8)(table_offset & PCI_MSIX_BIRMASK);
+    table_offset &= ~PCI_MSIX_BIRMASK;
     entry_offset = msi->entry_nr * PCI_MSIX_ENTRY_SIZE;
 
     table_paddr = msi->table_base + table_offset;

diff --git a/xen/include/asm-x86/msi.h b/xen/include/asm-x86/msi.h
index bc8ab0e870adf78964a042199a461c7e631edc35..0848616b2954e9e343718a968bed4812cdafe040 100644 (file)
--- a/xen/include/asm-x86/msi.h
+++ b/xen/include/asm-x86/msi.h
@@ -119,14 +119,6 @@ int msi_free_irq(struct msi_desc *entry);
 
 extern const struct hw_interrupt_type pci_msi_type;
 
-/*
- * MSI-X Address Register
- */
-#define PCI_MSIX_FLAGS_QSIZE           0x7FF
-#define PCI_MSIX_FLAGS_ENABLE          (1 << 15)
-#define PCI_MSIX_FLAGS_BIRMASK         (7 << 0)
-#define PCI_MSIX_FLAGS_BITMASK         (1 << 0)
-
 #define PCI_MSIX_ENTRY_SIZE                    16
 #define  PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET      0
 #define  PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET      4
@@ -151,15 +143,14 @@ extern const struct hw_interrupt_type pci_msi_type;
        control |= PCI_MSI_FLAGS_ENABLE
 
 #define msix_control_reg(base)         (base + PCI_MSIX_FLAGS)
-#define msix_table_offset_reg(base)    (base + 0x04)
-#define msix_pba_offset_reg(base)      (base + 0x08)
+#define msix_table_offset_reg(base)    (base + PCI_MSIX_TABLE)
+#define msix_pba_offset_reg(base)      (base + PCI_MSIX_PBA)
 #define msix_enable(control)           control |= PCI_MSIX_FLAGS_ENABLE
 #define msix_disable(control)          control &= ~PCI_MSIX_FLAGS_ENABLE
 #define msix_table_size(control)       ((control & PCI_MSIX_FLAGS_QSIZE)+1)
 #define multi_msix_capable             msix_table_size
-#define msix_unmask(address)           (address & ~PCI_MSIX_FLAGS_BITMASK)
-#define msix_mask(address)             (address | PCI_MSIX_FLAGS_BITMASK)
-#define msix_is_pending(address)       (address & PCI_MSIX_FLAGS_PENDMASK)
+#define msix_unmask(address)           (address & ~PCI_MSIX_VECTOR_BITMASK)
+#define msix_mask(address)             (address | PCI_MSIX_VECTOR_BITMASK)
 
 /*
  * MSI Defined Data Structures

diff --git a/xen/include/xen/pci_regs.h b/xen/include/xen/pci_regs.h
index b92a1710520fde6fd367a5144d39dc4b005de305..dfeead1acacab2679cd9c1d8e5ef89d071157272 100644 (file)
--- a/xen/include/xen/pci_regs.h
+++ b/xen/include/xen/pci_regs.h
@@ -301,8 +301,11 @@
 #define  PCI_MSIX_FLAGS_QSIZE  0x7FF
 #define  PCI_MSIX_FLAGS_ENABLE (1 << 15)
 #define  PCI_MSIX_FLAGS_MASKALL        (1 << 14)
-#define PCI_MSIX_FLAGS_BIRMASK (7 << 0)
-#define PCI_MSIX_FLAGS_BITMASK (1 << 0)
+#define PCI_MSIX_TABLE         4
+#define PCI_MSIX_PBA           8
+#define  PCI_MSIX_BIRMASK      (7 << 0)
+
+#define PCI_MSIX_VECTOR_BITMASK        (1 << 0)
 
 /* CompactPCI Hotswap Register */