From 4978140c38958b15b3b95a49bda688723fa014eb Mon Sep 17 00:00:00 2001 From: Yaniv Rosner Date: Wed, 31 Oct 2012 05:46:55 +0000 Subject: bnx2x: Fix potential incorrect link speed provision Fix possible incorrect link speed provision following rapid link speed change. Clear link speed mask after each link change, and not only after link down. Signed-off-by: Yaniv Rosner Signed-off-by: Barak Witkowski Signed-off-by: Dmitry Kravkov Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 5e8f7b7a8f65..308ba42dfd56 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -137,7 +137,16 @@ #define LINK_20GTFD LINK_STATUS_SPEED_AND_DUPLEX_20GTFD #define LINK_20GXFD LINK_STATUS_SPEED_AND_DUPLEX_20GXFD - +#define LINK_UPDATE_MASK \ + (LINK_STATUS_SPEED_AND_DUPLEX_MASK | \ + LINK_STATUS_LINK_UP | \ + LINK_STATUS_PHYSICAL_LINK_FLAG | \ + LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | \ + LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | \ + LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | \ + LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | \ + LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | \ + LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE) #define SFP_EEPROM_CON_TYPE_ADDR 0x2 #define SFP_EEPROM_CON_TYPE_VAL_LC 0x7 @@ -6349,15 +6358,7 @@ static int bnx2x_update_link_down(struct link_params *params, vars->mac_type = MAC_TYPE_NONE; /* Update shared memory */ - vars->link_status &= ~(LINK_STATUS_SPEED_AND_DUPLEX_MASK | - LINK_STATUS_LINK_UP | - LINK_STATUS_PHYSICAL_LINK_FLAG | - LINK_STATUS_AUTO_NEGOTIATE_COMPLETE | - LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK | - LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK | - LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK | - LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE | - LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE); + vars->link_status &= ~LINK_UPDATE_MASK; vars->line_speed = 0; bnx2x_update_mng(params, vars->link_status); @@ -6505,6 +6506,7 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars) u16 ext_phy_line_speed = 0, prev_line_speed = vars->line_speed; u8 active_external_phy = INT_PHY; vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG; + vars->link_status &= ~LINK_UPDATE_MASK; for (phy_index = INT_PHY; phy_index < params->num_phys; phy_index++) { phy_vars[phy_index].flow_ctrl = 0; -- cgit v1.2.3