ionic: make all rx_mode work threadsafe

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Move the bulk of the code from ionic_set_rx_mode(), which
can be called from atomic context, into ionic_lif_rx_mode()
which is a safe context.

A call from the stack will get pushed off into a work thread,
but it is also possible to simultaneously have a call driven
by a queue reconfig request from an ethtool command or fw
recovery event.  We add a mutex around the rx_mode work to be
sure they don't collide.

Fixes: 81dbc24147 ("ionic: change set_rx_mode from_ndo to can_sleep")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Shannon Nelson 2021-07-23 11:02:45 -07:00 • committed by David S. Miller

parent 0506c93fba

commit 6840e17b8e

2 changed files with 85 additions and 102 deletions

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205

drivers/net/ethernet/pensando/ionic/ionic_lif.c

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4

drivers/net/ethernet/pensando/ionic/ionic_lif.h

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