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ravb: add support for changing MTU

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Allow for changing the MTU within the limit of the maximum size of a
descriptor (2048 bytes). Add the callback to change MTU from user-space
and take the configurable MTU into account when configuring the
hardware.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Niklas Söderlund
2018-02-16 17:10:08 +01:00
committed by David S. Miller
parent a73d65b5cd
commit 75efa06f45
2 changed files with 28 additions and 7 deletions
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drivers/net/ethernet/renesas/ravb.h
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@@ -1018,6 +1018,7 @@ struct ravb_private {
u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */
u32 cur_tx[NUM_TX_QUEUE];
u32 dirty_tx[NUM_TX_QUEUE];
u32 rx_buf_sz; /* Based on MTU+slack. */
struct napi_struct napi[NUM_RX_QUEUE];
struct work_struct work;
/* MII transceiver section. */