diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/norm_desc.c | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 |
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c index 029c2a2cf524..e13226b80d47 100644 --- a/drivers/net/ethernet/stmicro/stmmac/norm_desc.c +++ b/drivers/net/ethernet/stmicro/stmmac/norm_desc.c @@ -126,6 +126,7 @@ static void ndesc_init_rx_desc(struct dma_desc *p, unsigned int ring_size, for (i = 0; i < ring_size; i++) { p->des01.rx.own = 1; p->des01.rx.buffer1_size = BUF_SIZE_2KiB - 1; + p->des01.rx.buffer2_size = BUF_SIZE_2KiB - 1; if (i == ring_size - 1) p->des01.rx.end_ring = 1; if (disable_rx_ic) @@ -183,7 +184,12 @@ static void ndesc_prepare_tx_desc(struct dma_desc *p, int is_fs, int len, int csum_flag) { p->des01.tx.first_segment = is_fs; - p->des01.tx.buffer1_size = len; + + if (unlikely(len > BUF_SIZE_2KiB)) { + p->des01.etx.buffer1_size = BUF_SIZE_2KiB - 1; + p->des01.etx.buffer2_size = len - p->des01.etx.buffer1_size; + } else + p->des01.tx.buffer1_size = len; } static void ndesc_clear_tx_ic(struct dma_desc *p) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f80190d78f90..3c7ef7127d75 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1412,10 +1412,10 @@ static int stmmac_change_mtu(struct net_device *dev, int new_mtu) return -EBUSY; } - if (priv->plat->has_gmac) + if (priv->plat->enh_desc) max_mtu = JUMBO_LEN; else - max_mtu = ETH_DATA_LEN; + max_mtu = BUF_SIZE_4KiB; if ((new_mtu < 46) || (new_mtu > max_mtu)) { pr_err("%s: invalid MTU, max MTU is: %d\n", dev->name, max_mtu); |