[PATCH net-2.6 4/5] bnx2x: Fix potential link loss in multi-function mode
DORMANTno replies
From: Yaniv Rosner <hidden>
Date: 2011-01-30 14:17:54
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
All functions on a port should be set to take the MDC/MDIO lock to avoid contention on the bus Signed-off-by: Yaniv Rosner <redacted> Signed-off-by: Eilon Greenstein <redacted> --- drivers/net/bnx2x/bnx2x_main.c | 18 +++++++++++------- 1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 8cdcf5b..404d93e 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c@@ -5296,10 +5296,6 @@ static int bnx2x_init_hw_common(struct bnx2x *bp, u32 load_code) } } - bp->port.need_hw_lock = bnx2x_hw_lock_required(bp, - bp->common.shmem_base, - bp->common.shmem2_base); - bnx2x_setup_fan_failure_detection(bp); /* clear PXP2 attentions */
@@ -5503,9 +5499,6 @@ static int bnx2x_init_hw_port(struct bnx2x *bp) bnx2x_init_block(bp, MCP_BLOCK, init_stage); bnx2x_init_block(bp, DMAE_BLOCK, init_stage); - bp->port.need_hw_lock = bnx2x_hw_lock_required(bp, - bp->common.shmem_base, - bp->common.shmem2_base); if (bnx2x_fan_failure_det_req(bp, bp->common.shmem_base, bp->common.shmem2_base, port)) { u32 reg_addr = (port ? MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0 :
@@ -8379,6 +8372,17 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp) (ext_phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN)) bp->mdio.prtad = XGXS_EXT_PHY_ADDR(ext_phy_config); + + /* + * Check if hw lock is required to access MDC/MDIO bus to the PHY(s) + * In MF mode, it is set to cover self test cases + */ + if (IS_MF(bp)) + bp->port.need_hw_lock = 1; + else + bp->port.need_hw_lock = bnx2x_hw_lock_required(bp, + bp->common.shmem_base, + bp->common.shmem2_base); } static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
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1.7.1