diff options
| author | Yaniv Rosner <yanivr@broadcom.com> | 2011-01-30 04:15:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-30 22:26:16 -0800 |
| commit | 5866df6d07cf22749557a0804253c8fee9e87f06 (patch) | |
| tree | 647862a41ff9006d4423ad0f697eedf3a574cbe3 | |
| parent | c8e64df48a814be1e7066f07b4f709ff63727abf (diff) | |
| download | linux-5866df6d07cf22749557a0804253c8fee9e87f06.tar.bz2 | |
bnx2x: Fix potential link loss in multi-function mode
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 <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | 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 8cdcf5b39d1e..404d93e6df21 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) |