[PATCH] PCI: Change MSI to use physical delivery mode always

MSI hardcoded delivery mode to use logical delivery mode. Recently
x86_64 moved to use physical mode addressing to support physflat mode.
With this mode enabled noticed that my eth with MSI werent working.

msi_address_init()  was hardcoded to use logical mode for i386 and x86_64.
So when we switch to use physical mode, things stopped working.

Since anyway we dont use lowest priority delivery with MSI, its always
directed to just a single CPU. Its safe  and simpler to use
physical mode always, even when we use logical delivery mode for IPI's
or other ioapic RTE's.

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 7 insertions, 3 deletions

diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h
index 85c427e472bf..356e0e82f50b 100644
--- a/include/asm-x86_64/msi.h
+++ b/include/asm-x86_64/msi.h
@@ -11,8 +11,6 @@
 #include <asm/smp.h>
 
 #define LAST_DEVICE_VECTOR              232
-#define MSI_DEST_MODE                   MSI_LOGICAL_MODE
-#define MSI_TARGET_CPU_SHIFT            12
-#define MSI_TARGET_CPU                  logical_smp_processor_id()
+#define MSI_TARGET_CPU_SHIFT    12
 
 #endif /* ASM_MSI_H */
diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h
index c57ce4071342..b9fb2173ef99 100644
--- a/include/asm-x86_64/smp.h
+++ b/include/asm-x86_64/smp.h
@@ -135,5 +135,11 @@ static __inline int logical_smp_processor_id(void)
 }
 #endif
 
+#ifdef CONFIG_SMP
+#define cpu_physical_id(cpu)            x86_cpu_to_apicid[cpu]
+#else
+#define cpu_physical_id(cpu)            boot_cpu_id
+#endif
+
 #endif