diff options
| author |   Yaniv Rosner <yanivr@broadcom.com> | 2011-07-05 01:06:53 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-07-05 04:21:40 -0700 |
| commit | 85242eea68f5039458afad0e4030828496bb4034 (patch) | |
| tree | efc81e33f4c680a570a21d09718e15046be35180 /drivers/net/bnx2x/bnx2x_link.c | |
| parent | bnx2x: Reset PHY due to fan failure for 578xx (diff) | |
| download | linux-dev-85242eea68f5039458afad0e4030828496bb4034.tar.xz linux-dev-85242eea68f5039458afad0e4030828496bb4034.zip | |
bnx2x: Fix false link indication at link partner when DAC is used
When driver is unloaded, disable PMD in addition to TX laser, provided that the management firmware will be able to enable it back.
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>
Diffstat (limited to 'drivers/net/bnx2x/bnx2x_link.c')
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_link.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/bnx2x/bnx2x_link.c b/drivers/net/bnx2x/bnx2x_link.c index a04fa13ad1c2..144cfae39661 100644 --- a/drivers/net/bnx2x/bnx2x_link.c +++ b/drivers/net/bnx2x/bnx2x_link.c @@ -7195,6 +7195,30 @@ static u8 bnx2x_8705_read_status(struct bnx2x_phy *phy, /******************************************************************/ /* SFP+ module Section */ /******************************************************************/ +static void bnx2x_set_disable_pmd_transmit(struct link_params *params, + struct bnx2x_phy *phy, + u8 pmd_dis) +{ + struct bnx2x *bp = params->bp; + /* + * Disable transmitter only for bootcodes which can enable it afterwards + * (for D3 link) + */ + if (pmd_dis) { + if (params->feature_config_flags & + FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED) + DP(NETIF_MSG_LINK, "Disabling PMD transmitter\n"); + else { + DP(NETIF_MSG_LINK, "NOT disabling PMD transmitter\n"); + return; + } + } else + DP(NETIF_MSG_LINK, "Enabling PMD transmitter\n"); + bnx2x_cl45_write(bp, phy, + MDIO_PMA_DEVAD, + MDIO_PMA_REG_TX_DISABLE, pmd_dis); +} + static u8 bnx2x_get_gpio_port(struct link_params *params) { u8 gpio_port; @@ -8598,6 +8622,9 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs); + /* Enable/Disable PHY transmitter output */ + bnx2x_set_disable_pmd_transmit(params, phy, 0); + /* Make MOD_ABS give interrupt on change */ bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL, &val); @@ -8972,6 +8999,10 @@ static void bnx2x_8727_link_reset(struct bnx2x_phy *phy, struct link_params *params) { struct bnx2x *bp = params->bp; + + /* Enable/Disable PHY transmitter output */ + bnx2x_set_disable_pmd_transmit(params, phy, 1); + /* Disable Transmitter */ bnx2x_sfp_set_transmitter(params, phy, 0); /* Clear LASI */ @@ -11895,6 +11926,10 @@ static int bnx2x_8727_common_init_phy(struct bnx2x *bp, if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port], port_of_path)) return -EINVAL; + /* Disable PHY transmitter output */ + bnx2x_cl45_write(bp, phy_blk[port], + MDIO_PMA_DEVAD, + MDIO_PMA_REG_TX_DISABLE, 1); } return 0; |