[PATCH net 4/7] bnx2x: Fix potential incorrect link speed provision
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STALE5088d
From: Dmitry Kravkov <hidden>
Date: 2012-10-31 15:47:13
Subsystem:
broadcom bnx2x 10 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Sudarsana Kalluru, Manish Chopra, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Yaniv Rosner <redacted> 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 <redacted> Signed-off-by: Barak Witkowski <redacted> Signed-off-by: Dmitry Kravkov <redacted> --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 22 ++++++++++++---------- 1 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 5e8f7b7..308ba42 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;
--
1.7.7.2