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bnx2x: Fix KR2 rapid link flap 

Check KR2 recovery time at the beginning of the work-around function.

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>
This commit is contained in:
Yaniv Rosner 2013-04-07 05:36:23 +00:00 committed by David S. Miller
parent 259c9a1f9e
commit cb28ea3b13
1 changed files with 11 additions and 7 deletions
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18
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
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@ -13437,13 +13437,7 @@ static void bnx2x_check_kr2_wa(struct link_params *params,
{ {
struct bnx2x *bp = params->bp; struct bnx2x *bp = params->bp;
u16 base_page, next_page, not_kr2_device, lane; u16 base_page, next_page, not_kr2_device, lane;
int sigdet = bnx2x_warpcore_get_sigdet(phy, params); int sigdet;
if (!sigdet) {
if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE))
bnx2x_kr2_recovery(params, vars, phy);
return;
}
/* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery /* Once KR2 was disabled, wait 5 seconds before checking KR2 recovery
* since some switches tend to reinit the AN process and clear the * since some switches tend to reinit the AN process and clear the
@ -13454,6 +13448,16 @@ static void bnx2x_check_kr2_wa(struct link_params *params,
vars->check_kr2_recovery_cnt--; vars->check_kr2_recovery_cnt--;
return; return;
} }
sigdet = bnx2x_warpcore_get_sigdet(phy, params);
if (!sigdet) {
if (!(vars->link_attr_sync & LINK_ATTR_SYNC_KR2_ENABLE)) {
bnx2x_kr2_recovery(params, vars, phy);
DP(NETIF_MSG_LINK, "No sigdet\n");
}
return;
}
lane = bnx2x_get_warpcore_lane(phy, params); lane = bnx2x_get_warpcore_lane(phy, params);
CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK, CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
MDIO_AER_BLOCK_AER_REG, lane); MDIO_AER_BLOCK_AER_REG, lane);