From 3910c8ae44c59cebed721e33aa496f0a385b4e03 Mon Sep 17 00:00:00 2001 From: Eilon Greenstein Date: Thu, 22 Jan 2009 06:01:32 +0000 Subject: [PATCH] bnx2x: loopback test failure A link change interrupt might be queued and activated after the loopback was set and it will cause the loopback to fail. The PHY lock should be kept until the loopback test is over. That implies that the bnx2x_test_link should used within the loopback function and not bnx2x_wait_for_link since that function also takes the PHY link Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/bnx2x_main.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c index f71b8a5872b..d95714f780f 100644 --- a/drivers/net/bnx2x_main.c +++ b/drivers/net/bnx2x_main.c @@ -8750,18 +8750,17 @@ static int bnx2x_run_loopback(struct bnx2x *bp, int loopback_mode, u8 link_up) if (loopback_mode == BNX2X_MAC_LOOPBACK) { bp->link_params.loopback_mode = LOOPBACK_BMAC; - bnx2x_acquire_phy_lock(bp); bnx2x_phy_init(&bp->link_params, &bp->link_vars); - bnx2x_release_phy_lock(bp); } else if (loopback_mode == BNX2X_PHY_LOOPBACK) { + u16 cnt = 1000; bp->link_params.loopback_mode = LOOPBACK_XGXS_10; - bnx2x_acquire_phy_lock(bp); bnx2x_phy_init(&bp->link_params, &bp->link_vars); - bnx2x_release_phy_lock(bp); /* wait until link state is restored */ - bnx2x_wait_for_link(bp, link_up); - + if (link_up) + while (cnt-- && bnx2x_test_link(&bp->link_params, + &bp->link_vars)) + msleep(10); } else return -EINVAL; @@ -8867,6 +8866,7 @@ static int bnx2x_test_loopback(struct bnx2x *bp, u8 link_up) return BNX2X_LOOPBACK_FAILED; bnx2x_netif_stop(bp, 1); + bnx2x_acquire_phy_lock(bp); if (bnx2x_run_loopback(bp, BNX2X_MAC_LOOPBACK, link_up)) { DP(NETIF_MSG_PROBE, "MAC loopback failed\n"); @@ -8878,6 +8878,7 @@ static int bnx2x_test_loopback(struct bnx2x *bp, u8 link_up) rc |= BNX2X_PHY_LOOPBACK_FAILED; } + bnx2x_release_phy_lock(bp); bnx2x_netif_start(bp); return rc; -- 2.20.1