net: axienet: limit minimum TX ring size

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The driver will not work properly if the TX ring size is set to below
MAX_SKB_FRAGS + 1 since it needs to hold at least one full maximally
fragmented packet in the TX ring. Limit setting the ring size to below
this value.

Fixes: 8b09ca823f ("net: axienet: Make RX/TX ring sizes configurable")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Robert Hancock 2022-01-18 15:41:28 -06:00 • committed by David S. Miller

parent 95978df6fa

commit 70f5817ded

1 changed files with 3 additions and 1 deletions

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drivers/net/ethernet/xilinx/xilinx_axienet_main.c

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