diff options
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 25 |
2 files changed, 27 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h index 06df560e1ade..058bc7328220 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h @@ -2258,8 +2258,8 @@ struct shmem2_region { #define LINK_SFP_EEPROM_COMP_CODE_LRM 0x00004000 u32 reserved5[2]; - u32 reserved6[PORT_MAX]; - + u32 link_change_count[PORT_MAX]; /* Offset 0x160-0x164 */ + #define LINK_CHANGE_COUNT_MASK 0xff /* Offset 0x168 */ /* driver version for each personality */ struct os_drv_ver func_os_drv_ver[E2_FUNC_MAX]; /* Offset 0x16c */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index a5b174345ce4..21a0d6afca4a 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -6758,6 +6758,25 @@ static int bnx2x_update_link_up(struct link_params *params, msleep(20); return rc; } + +static void bnx2x_chng_link_count(struct link_params *params, bool clear) +{ + struct bnx2x *bp = params->bp; + u32 addr, val; + + /* Verify the link_change_count is supported by the MFW */ + if (!(SHMEM2_HAS(bp, link_change_count))) + return; + + addr = params->shmem2_base + + offsetof(struct shmem2_region, link_change_count[params->port]); + if (clear) + val = 0; + else + val = REG_RD(bp, addr) + 1; + REG_WR(bp, addr, val); +} + /* The bnx2x_link_update function should be called upon link * interrupt. * Link is considered up as follows: @@ -6776,6 +6795,7 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars) struct link_vars phy_vars[MAX_PHYS]; u8 port = params->port; u8 link_10g_plus, phy_index; + u32 prev_link_status = vars->link_status; u8 ext_phy_link_up = 0, cur_link_up; int rc = 0; u8 is_mi_int = 0; @@ -7015,6 +7035,9 @@ int bnx2x_link_update(struct link_params *params, struct link_vars *vars) else rc = bnx2x_update_link_down(params, vars); + if ((prev_link_status ^ vars->link_status) & LINK_STATUS_LINK_UP) + bnx2x_chng_link_count(params, false); + /* Update MCP link status was changed */ if (params->feature_config_flags & FEATURE_CONFIG_BC_SUPPORTS_AFEX) bnx2x_fw_command(bp, DRV_MSG_CODE_LINK_STATUS_CHANGED, 0); @@ -12658,6 +12681,7 @@ int bnx2x_phy_init(struct link_params *params, struct link_vars *vars) params->link_flags = PHY_INITIALIZED; /* Driver opens NIG-BRB filters */ bnx2x_set_rx_filter(params, 1); + bnx2x_chng_link_count(params, true); /* Check if link flap can be avoided */ lfa_status = bnx2x_check_lfa(params); @@ -12732,6 +12756,7 @@ int bnx2x_link_reset(struct link_params *params, struct link_vars *vars, DP(NETIF_MSG_LINK, "Resetting the link of port %d\n", port); /* Disable attentions */ vars->link_status = 0; + bnx2x_chng_link_count(params, true); bnx2x_update_mng(params, vars->link_status); vars->eee_status &= ~(SHMEM_EEE_LP_ADV_STATUS_MASK | SHMEM_EEE_ACTIVE_BIT); |