qede: Fix system crash on configuring channels.

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Under heavy traffic load, when changing number of channels via
ethtool (ethtool -L) which will cause interface to be reloaded,
it was observed that some packets gets transmitted on old TX
channel/queue id which doesn't really exist after the channel
configuration leads to system crash.

Add a safeguard in the driver by validating queue id through
ndo_select_queue() which is called before the ndo_start_xmit().

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Sudarsana Reddy Kalluru 2019-02-06 14:43:45 -08:00 • committed by David S. Miller

parent fb1faab74d

commit 0aa4febb42

3 changed files with 19 additions and 0 deletions

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3

drivers/net/ethernet/qlogic/qede/qede.h

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13

drivers/net/ethernet/qlogic/qede/qede_fp.c

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3

drivers/net/ethernet/qlogic/qede/qede_main.c

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