netdev - [PATCH net 2/3] mlx4: fix QP tree trashing

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Message-ID: <4F3BDBE1.8010702@mellanox.co.il>
Date:	Wed, 15 Feb 2012 18:22:57 +0200
From:	Yevgeny Petrilin <yevgenyp@...lanox.co.il>
To:	<davem@...emloft.net>
CC:	<netdev@...r.kernel.org>, <yevgenyp@...lanox.co.il>,
	<eugenia@...lanox.co.il>
Subject: [PATCH net 2/3] mlx4: fix QP tree trashing

From: Eugenia Emantayev <eugenia@...lanox.co.il>

When adding new unicast steer entry, before moving qp to state ready,
actually before calling mlx4_RST2INIT_QP_wrapper(), there were added
a lot of entries with local_qpn=0 into radix tree.
This fact impacted the get_res() function and proper functioning
of resource tracker in addition to adding trash entries into radix tree.

Signed-off-by: Eugenia Emantayev <eugenia@...lanox.co.il>
Reviewed-by: Yevgeny Petrilin <yevgenyp@...llanox.co.il>
---
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 1420dbc..629cc30 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -374,6 +374,7 @@ static struct res_common *alloc_qp_tr(int id)
 
 	ret->com.res_id = id;
 	ret->com.state = RES_QP_RESERVED;
+	ret->local_qpn = id;
 	INIT_LIST_HEAD(&ret->mcg_list);
 	spin_lock_init(&ret->mcg_spl);
 
-- 
1.5.4.3







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