X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=src%2Fpatches%2Fsuse-2.6.27.31%2Fpatches.drivers%2Fbnx2x-First-slow-path-interrupt-race.patch;fp=src%2Fpatches%2Fsuse-2.6.27.31%2Fpatches.drivers%2Fbnx2x-First-slow-path-interrupt-race.patch;h=5201a7af1c67eb86f27e652c5edac3d908839fda;hb=38e2b028de682e6c22e4249acadbdddd4d8b4b8a;hp=0000000000000000000000000000000000000000;hpb=3a87c0dd202ab6cd1546ce56fca50ef45f561e54;p=people%2Fpmueller%2Fipfire-2.x.git

diff --git a/src/patches/suse-2.6.27.31/patches.drivers/bnx2x-First-slow-path-interrupt-race.patch b/src/patches/suse-2.6.27.31/patches.drivers/bnx2x-First-slow-path-interrupt-race.patch
new file mode 100644
index 0000000000..5201a7af1c
--- /dev/null
+++ b/src/patches/suse-2.6.27.31/patches.drivers/bnx2x-First-slow-path-interrupt-race.patch
@@ -0,0 +1,54 @@
+From 0ef00459a638ae4f5d1e5326d3e50232fa80119f Mon Sep 17 00:00:00 2001
+From: Eilon Greenstein <eilong@broadcom.com>
+Date: Wed, 14 Jan 2009 21:31:08 -0800
+Subject: bnx2x: First slow path interrupt race
+Acked-by: Karsten Keil <kkeil@novell.com>
+Reference: bnc#472500
+
+The "read for interrupts" flag must be set before enabling slow-path
+interrupts as well (and not just before fast-path interrupts)
+
+Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/bnx2x_main.c |   18 +++++++++---------
+ 1 files changed, 9 insertions(+), 9 deletions(-)
+
+Index: linux-2.6.27-bnx2x_2/drivers/net/bnx2x_main.c
+===================================================================
+--- linux-2.6.27-bnx2x_2.orig/drivers/net/bnx2x_main.c
++++ linux-2.6.27-bnx2x_2/drivers/net/bnx2x_main.c
+@@ -4815,6 +4815,15 @@ static void bnx2x_nic_init(struct bnx2x 
+ 	bnx2x_init_context(bp);
+ 	bnx2x_init_internal(bp, load_code);
+ 	bnx2x_init_ind_table(bp);
++	bnx2x_stats_init(bp);
++
++	/* At this point, we are ready for interrupts */
++	atomic_set(&bp->intr_sem, 0);
++
++	/* flush all before enabling interrupts */
++	mb();
++	mmiowb();
++
+ 	bnx2x_int_enable(bp);
+ }
+ 
+@@ -6423,17 +6432,8 @@ static int bnx2x_nic_load(struct bnx2x *
+ 		}
+ 	}
+ 
+-	bnx2x_stats_init(bp);
+-
+ 	bp->state = BNX2X_STATE_OPENING_WAIT4_PORT;
+ 
+-	/* Enable Rx interrupt handling before sending the ramrod
+-	   as it's completed on Rx FP queue */
+-	bnx2x_napi_enable(bp);
+-
+-	/* Enable interrupt handling */
+-	atomic_set(&bp->intr_sem, 0);
+-
+ 	rc = bnx2x_setup_leading(bp);
+ 	if (rc) {
+ 		BNX2X_ERR("Setup leading failed!\n");