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authorBruce Allan <bruce.w.allan@intel.com>2008-08-08 18:36:11 -0700
committerJeff Garzik <jgarzik@redhat.com>2008-08-14 04:42:29 -0400
commitf8d59f7826aa73c5e7682fbed6db38020635d466 (patch)
tree1287e3ee3e5af9adf3b59bce6f70f3823997d875 /drivers/net/e1000e/e1000.h
parentd53f706da808e6d93dc60b1910233a309009939f (diff)
e1000e: test for unusable MSI support
Some systems do not like 82571/2 use of 16-bit MSI messages and some other systems claim to support MSI, but neither really works. Setup a test MSI handler to detect whether or not MSI is working properly, and if not, fallback to legacy INTx interrupts. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/e1000e/e1000.h')
-rw-r--r--drivers/net/e1000e/e1000.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index cf57050d99d..ac4e506b4f8 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -326,6 +326,7 @@ struct e1000_info {
#define FLAG_RX_CSUM_ENABLED (1 << 28)
#define FLAG_TSO_FORCE (1 << 29)
#define FLAG_RX_RESTART_NOW (1 << 30)
+#define FLAG_MSI_TEST_FAILED (1 << 31)
#define E1000_RX_DESC_PS(R, i) \
(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))