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| author | Yaniv Rosner <yanivr@broadcom.com> | 2009-11-05 19:18:12 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-05 20:00:35 -0800 |
| commit | 15ddd2d0ef4849410a2251587b3652fe6a689fda (patch) | |
| tree | 4964565c9e2f4bf350cc2774f29424c17028eac6 /drivers/net/bnx2x_link.c | |
| parent | d5cb9e997708bd48d2ed3dd926dad7a6fc83bf56 (diff) | |
| download | blackbird-obmc-linux-15ddd2d0ef4849410a2251587b3652fe6a689fda.tar.gz blackbird-obmc-linux-15ddd2d0ef4849410a2251587b3652fe6a689fda.zip | |
bnx2x: Enable FC when parallel-detect is used
When parallel detect is used, flow-control is set to the
req_fc_auto_adv instead of none.
Motive: when 577xx is FC configuration is set to AUTO, while LP speed
is set to FORCE mode and FC to force RX/TX, link would come up using
parallel detect, and the FC will be set to NONE since FC capabilities
were not negotiated, although the LP is setting FC to force RX/TX.
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_link.c')
| -rw-r--r-- | drivers/net/bnx2x_link.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/net/bnx2x_link.c b/drivers/net/bnx2x_link.c index bf1021ed5dd6..4c16a46f0caf 100644 --- a/drivers/net/bnx2x_link.c +++ b/drivers/net/bnx2x_link.c @@ -1621,6 +1621,39 @@ static u8 bnx2x_ext_phy_resolve_fc(struct link_params *params, return ret; } +static u8 bnx2x_direct_parallel_detect_used(struct link_params *params) +{ + struct bnx2x *bp = params->bp; + u16 pd_10g, status2_1000x; + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_SERDES_DIGITAL, + MDIO_SERDES_DIGITAL_A_1000X_STATUS2, + &status2_1000x); + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_SERDES_DIGITAL, + MDIO_SERDES_DIGITAL_A_1000X_STATUS2, + &status2_1000x); + if (status2_1000x & MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED) { + DP(NETIF_MSG_LINK, "1G parallel detect link on port %d\n", + params->port); + return 1; + } + + CL45_RD_OVER_CL22(bp, params->port, + params->phy_addr, + MDIO_REG_BANK_10G_PARALLEL_DETECT, + MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS, + &pd_10g); + + if (pd_10g & MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK) { + DP(NETIF_MSG_LINK, "10G parallel detect link on port %d\n", + params->port); + return 1; + } + return 0; +} static void bnx2x_flow_ctrl_resolve(struct link_params *params, struct link_vars *vars, @@ -1639,6 +1672,10 @@ static void bnx2x_flow_ctrl_resolve(struct link_params *params, (!(vars->phy_flags & PHY_SGMII_FLAG)) && (XGXS_EXT_PHY_TYPE(params->ext_phy_config) == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)) { + if (bnx2x_direct_parallel_detect_used(params)) { + vars->flow_ctrl = params->req_fc_auto_adv; + return; + } if ((gp_status & (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) == |
