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| author | Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> | 2018-09-19 10:06:21 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-19 21:08:20 -0700 |
| commit | f543305da9b5a5efaf6fa61606e8bbc8977f406d (patch) | |
| tree | dacff0d323507cfb2e8b61a40e77c3b9e7c69e97 /drivers/net/ethernet/renesas/ravb.h | |
| parent | f46f33a6790c35f71ee95d47aef5fbc7590d7218 (diff) | |
| download | linux-f543305da9b5a5efaf6fa61606e8bbc8977f406d.tar.gz linux-f543305da9b5a5efaf6fa61606e8bbc8977f406d.tar.bz2 linux-f543305da9b5a5efaf6fa61606e8bbc8977f406d.zip | |
ravb: remove tx buffer addr 4byte alilgnment restriction for R-Car Gen3
This patch sets from two descriptor to one descriptor because R-Car Gen3
does not have the 4 bytes alignment restriction of the transmission buffer.
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/renesas/ravb.h')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 1470fc12282b..b2b18036380e 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -954,7 +954,10 @@ enum RAVB_QUEUE { #define RX_QUEUE_OFFSET 4 #define NUM_RX_QUEUE 2 #define NUM_TX_QUEUE 2 -#define NUM_TX_DESC 2 /* TX descriptors per packet */ + +/* TX descriptors per packet */ +#define NUM_TX_DESC_GEN2 2 +#define NUM_TX_DESC_GEN3 1 struct ravb_tstamp_skb { struct list_head list; @@ -1033,6 +1036,7 @@ struct ravb_private { unsigned no_avb_link:1; unsigned avb_link_active_low:1; unsigned wol_enabled:1; + int num_tx_desc; /* TX descriptors per packet */ }; static inline u32 ravb_read(struct net_device *ndev, enum ravb_reg reg) |