Move xen patchset to new version's subdir.

[ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.drivers / bnx2x-Protecting-the-link-change-indication.patch

diff --git a/src/patches/suse-2.6.27.31/patches.drivers/bnx2x-Protecting-the-link-change-indication.patch b/src/patches/suse-2.6.27.31/patches.drivers/bnx2x-Protecting-the-link-change-indication.patch
new file mode 100644 (file)
index 0000000..4b85642
--- /dev/null
+++ b/src/patches/suse-2.6.27.31/patches.drivers/bnx2x-Protecting-the-link-change-indication.patch
@@ -0,0 +1,51 @@
+From a5e9a7cfad5fd301ce2b7869bbf386b70aa39e7c Mon Sep 17 00:00:00 2001
+From: Eilon Greenstein <eilong@broadcom.com>
+Date: Wed, 14 Jan 2009 21:26:01 -0800
+Subject: bnx2x: Protecting the link change indication
+Acked-by: Karsten Keil <kkeil@novell.com>
+Reference: bnc#472500
+
+Without this lock, in some race conditions the driver missed link
+change indication
+
+Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/bnx2x_main.c |    8 +++++---
+ 1 files changed, 5 insertions(+), 3 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
+@@ -2237,9 +2237,7 @@ static void bnx2x_link_attn(struct bnx2x
+       /* Make sure that we are synced with the current statistics */
+       bnx2x_stats_handle(bp, STATS_EVENT_STOP);
+ 
+-      bnx2x_acquire_phy_lock(bp);
+       bnx2x_link_update(&bp->link_params, &bp->link_vars);
+-      bnx2x_release_phy_lock(bp);
+ 
+       if (bp->link_vars.link_up) {
+ 
+@@ -2488,6 +2486,8 @@ static void bnx2x_attn_int_asserted(stru
+       if (asserted & ATTN_HARD_WIRED_MASK) {
+               if (asserted & ATTN_NIG_FOR_FUNC) {
+ 
++                      bnx2x_acquire_phy_lock(bp);
++
+                       /* save nig interrupt mask */
+                       bp->nig_mask = REG_RD(bp, nig_int_mask_addr);
+                       REG_WR(bp, nig_int_mask_addr, 0);
+@@ -2543,8 +2543,10 @@ static void bnx2x_attn_int_asserted(stru
+       REG_WR(bp, hc_addr, asserted);
+ 
+       /* now set back the mask */
+-      if (asserted & ATTN_NIG_FOR_FUNC)
++      if (asserted & ATTN_NIG_FOR_FUNC) {
+               REG_WR(bp, nig_int_mask_addr, bp->nig_mask);
++              bnx2x_release_phy_lock(bp);
++      }
+ }
+ 
+ static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)