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authorVasanthy Kolluri <vkolluri@cisco.com>2010-03-18 16:19:44 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-18 21:22:47 -0700
commita55a603dae47a1ea4fbfad3a3a428ea7a0900ab6 (patch)
treee5a0526197efe4afb24443a2b918a8908ce11a43 /drivers/net/enic/enic.h
parentba7e94a44afbbf4c494e00b844f7bbfb144e7f6d (diff)
enic: Bug Fix: Fix hardware descriptor reads
The last bit written to a completion descriptor by hardware is the color bit. Driver must read all other descriptor fields only after reading the color bit to avoid reading stale descriptor fields. There is a rmb() after reading the color bit to avoid any compiler/cpu reordering of the reads. The color bit is the generation bit that toggles each pass through the completion descriptor ring. Signed-off-by: Scott Feldman <scofeldm@cisco.com> Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/enic/enic.h')
-rw-r--r--drivers/net/enic/enic.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index ee01f5a6d0d..9f5ed3e5e3f 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -34,7 +34,7 @@
#define DRV_NAME "enic"
#define DRV_DESCRIPTION "Cisco 10G Ethernet Driver"
-#define DRV_VERSION "1.1.0.241a"
+#define DRV_VERSION "1.3.1.1"
#define DRV_COPYRIGHT "Copyright 2008-2009 Cisco Systems, Inc"
#define PFX DRV_NAME ": "