bnx2x: Fix link problem with some DACs
Change 2wire transfer rate of SFP+ module EEPROM from 400Khz to 100Khz since some DACs(direct attached cables) do not work at 400Khz. Reported-by: Krzysztof Oldzki <ole@ans.pl> 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>
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@ -4266,14 +4266,16 @@ static u8 bnx2x_ext_phy_init(struct link_params *params, struct link_vars *vars)
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MDIO_PMA_REG_10G_CTRL2, 0x0008);
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}
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/* Set 2-wire transfer rate to 400Khz since 100Khz
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is not operational */
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/* Set 2-wire transfer rate of SFP+ module EEPROM
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* to 100Khz since some DACs(direct attached cables) do
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* not work at 400Khz.
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*/
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bnx2x_cl45_write(bp, params->port,
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ext_phy_type,
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ext_phy_addr,
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MDIO_PMA_DEVAD,
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MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
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0xa101);
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0xa001);
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/* Set TX PreEmphasis if needed */
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if ((params->feature_config_flags &
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