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bnx2x: Stop management traffic in loopback test

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Since management traffic cannot go on the wire while configured to loopback,
simply stop it to avoid race condition when the MAC is set to loopback in the
middle of a packet

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eilon Greenstein 2009-07-21 05:47:22 +00:00 committed by David S. Miller
parent 3c2b8d180a
commit 279abdf59c
2 changed files with 13 additions and 0 deletions
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11
drivers/net/bnx2x_main.c
View File

@ -9691,8 +9691,15 @@ static void bnx2x_self_test(struct net_device *dev,
etest->flags &= ~ETH_TEST_FL_OFFLINE;
if (etest->flags & ETH_TEST_FL_OFFLINE) {
int port = BP_PORT(bp);
u32 val;
u8 link_up;
/* save current value of input enable for TX port IF */
val = REG_RD(bp, NIG_REG_EGRESS_UMP0_IN_EN + port*4);
/* disable input for TX port IF */
REG_WR(bp, NIG_REG_EGRESS_UMP0_IN_EN + port*4, 0);
link_up = bp->link_vars.link_up;
bnx2x_nic_unload(bp, UNLOAD_NORMAL);
bnx2x_nic_load(bp, LOAD_DIAG);
@ -9712,6 +9719,10 @@ static void bnx2x_self_test(struct net_device *dev,
etest->flags |= ETH_TEST_FL_FAILED;
bnx2x_nic_unload(bp, UNLOAD_NORMAL);
/* restore input for TX port IF */
REG_WR(bp, NIG_REG_EGRESS_UMP0_IN_EN + port*4, val);
bnx2x_nic_load(bp, LOAD_NORMAL);
/* wait until link state is restored */
bnx2x_wait_for_link(bp, link_up);

2
drivers/net/bnx2x_reg.h
View File

@ -1660,6 +1660,8 @@
#define NIG_REG_EGRESS_PBF0_IN_EN 0x100cc
/* [RW 1] Input enable for TX PBF user packet port1 IF */
#define NIG_REG_EGRESS_PBF1_IN_EN 0x100d0
/* [RW 1] Input enable for TX UMP management packet port0 IF */
#define NIG_REG_EGRESS_UMP0_IN_EN 0x100d4
/* [RW 1] Input enable for RX_EMAC0 IF */
#define NIG_REG_EMAC0_IN_EN 0x100a4
/* [RW 1] output enable for TX EMAC pause port 0 IF */