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tg3: Fix phylib locking strategy

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Felix Radensky noted that chip resets were generating stack trace dumps.
This is because the driver is attempting to acquire the mdio bus mutex
while holding the tp->lock spinlock.  The fix is to change the code such
that every phy access takes the tp->lock spinlock instead.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson
2009-10-05 17:55:29 +00:00
committed by David S. Miller
parent 083925d543
commit 24bb4fb6da
2 changed files with 14 additions and 28 deletions
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drivers/net/tg3.h
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@@ -2748,7 +2748,6 @@ struct tg3 {
#define TG3_FLG3_5701_DMA_BUG 0x00000008
#define TG3_FLG3_USE_PHYLIB 0x00000010
#define TG3_FLG3_MDIOBUS_INITED 0x00000020
#define TG3_FLG3_MDIOBUS_PAUSED 0x00000040
#define TG3_FLG3_PHY_CONNECTED 0x00000080
#define TG3_FLG3_RGMII_STD_IBND_DISABLE 0x00000100
#define TG3_FLG3_RGMII_EXT_IBND_RX_EN 0x00000200