ionic: Check stop no restart

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If there is a lot of transmit traffic the driver can get into a
situation that the device is starved due to the doorbell never
being rung. This can happen if xmit_more is set constantly
and __netdev_tx_sent_queue() keeps returning false. Fix this
by checking if the queue needs to be stopped right before
calling __netdev_tx_sent_queue(). Use MAX_SKB_FRAGS + 1 as the
stop condition because that's the maximum number of frags
supported for non-TSO transmit.

Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Brett Creeley 2024-02-29 11:39:29 -08:00 • committed by David S. Miller

parent bc581273fe

commit 138506ab24

1 changed files with 7 additions and 2 deletions

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9

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

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