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H A D | sfp.c | e117be74 Sun Nov 10 08:07:30 CST 2019 Russell King <rmk+kernel@armlinux.org.uk> net: sfp: allow sfp to probe slow to initialise GPON modules
Some GPON modules (e.g. Huawei MA5671A) take a significant amount of time to start responding on the I2C bus, contary to the SFF specifications.
Work around this by implementing a two-level timeout strategy, where we initially quickly retry for the module, and then use a slower retry after we exceed a maximum number of quick attempts.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> e117be74 Sun Nov 10 08:07:30 CST 2019 Russell King <rmk+kernel@armlinux.org.uk> net: sfp: allow sfp to probe slow to initialise GPON modules Some GPON modules (e.g. Huawei MA5671A) take a significant amount of time to start responding on the I2C bus, contary to the SFF specifications. Work around this by implementing a two-level timeout strategy, where we initially quickly retry for the module, and then use a slower retry after we exceed a maximum number of quick attempts. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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