netdev - [PATCH net-next 2/3] bnx2x: don't write dcb/llfc fields in STORM memory

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Message-ID: <1301611533-9725-2-git-send-email-mchan@broadcom.com>
Date:	Thu, 31 Mar 2011 14:45:32 -0800
From:	"Michael Chan" <mchan@...adcom.com>
To:	davem@...emloft.net
cc:	dmitry@...adcom.com, eilong@...adcom.com, netdev@...r.kernel.org
Subject: [PATCH net-next 2/3] bnx2x: don't write dcb/llfc fields in
 STORM memory

From: Dmitry Kravkov <dmitry@...adcom.com>

We could get hardware attention during DCB/FCoE traffic without this
fix.

Signed-off-by: Dmitry Kravkov <dmitry@...adcom.com>
Signed-off-by: Michael Chan <mchan@...adcom.com>
---
 drivers/net/bnx2x/bnx2x_cmn.h |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)

diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h
index ef37b98..775fef0 100644
--- a/drivers/net/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/bnx2x/bnx2x_cmn.h
@@ -1041,12 +1041,23 @@ static inline void storm_memset_cmng(struct bnx2x *bp,
 				struct cmng_struct_per_port *cmng,
 				u8 port)
 {
-	size_t size = sizeof(struct cmng_struct_per_port);
+	size_t size =
+		sizeof(struct rate_shaping_vars_per_port) +
+		sizeof(struct fairness_vars_per_port) +
+		sizeof(struct safc_struct_per_port) +
+		sizeof(struct pfc_struct_per_port);
 
 	u32 addr = BAR_XSTRORM_INTMEM +
 			XSTORM_CMNG_PER_PORT_VARS_OFFSET(port);
 
 	__storm_memset_struct(bp, addr, size, (u32 *)cmng);
+
+	addr += size + 4 /* SKIP DCB+LLFC */;
+	size = sizeof(struct cmng_struct_per_port) -
+		size /* written */ - 4 /*skipped*/;
+
+	__storm_memset_struct(bp, addr, size,
+			      (u32 *)(cmng->traffic_type_to_priority_cos));
 }
 
 /* HW Lock for shared dual port PHYs */
-- 
1.6.4.GIT


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