Lars Persson 45ab4b13e4 stmmac: reset last TSO segment size after device open ... The mss variable tracks the last max segment size sent to the TSO engine. We do not update the hardware as long as we receive skb:s with the same value in gso_size. During a network device down/up cycle (mapped to stmmac_release() and stmmac_open() callbacks) we issue a reset to the hardware and it forgets the setting for mss. However we did not zero out our mss variable so the next transmission of a gso packet happens with an undefined hardware setting. This triggers a hang in the TSO engine and eventuelly the netdev watchdog will bark. Fixes: f748be531d ("stmmac: support new GMAC4") Signed-off-by: Lars Persson <larper@axis.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-12-03 09:47:42 -05:00
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stmmac	stmmac: reset last TSO segment size after device open	2017-12-03 09:47:42 -05:00
Kconfig	stmicro: add more information to Kconfig	2017-01-18 12:12:04 -05:00
Makefile