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bnx2x: Fix incorrect link-up report 

Fix a problem where link is reported to be up when SFP+ module is plugged in
without cable. This occurs with specific module types which may generate
temporary TX_FAULT indication. Solution is to avoid changing any link parameters
when checking TX_FAULT indication while physical link is down.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yaniv Rosner 2014-01-01 11:06:44 +02:00 committed by David S. Miller
parent a429ec239c
commit ad1d9ef3f7
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
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@ -13360,6 +13360,10 @@ static u8 bnx2x_analyze_link_error(struct link_params *params,
DP(NETIF_MSG_LINK, "Link changed:[%x %x]->%x\n", vars->link_up,
old_status, status);
/* Do not touch the link in case physical link down */
if ((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0)
return 1;
/* a. Update shmem->link_status accordingly
* b. Update link_vars->link_up
*/