diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2021-08-18 22:07:54 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-19 14:05:15 +0300 |
| commit | 68ca3c923213b908c14a673f6c3ec808664fae1f (patch) | |
| tree | 2ac8fbd1a1a7abc7e15a858a7ca481541eef026b /drivers/net/ethernet/renesas | |
| parent | ebb091461a9e146f8afd750cb7eddc5b4c8d47be (diff) | |
| download | linux-68ca3c923213b908c14a673f6c3ec808664fae1f.tar.xz | |
ravb: Add aligned_tx to struct ravb_hw_info
R-Car Gen2 needs a 4byte aligned address for the transmission buffer,
whereas R-Car Gen3 doesn't have any such restriction.
Add aligned_tx to struct ravb_hw_info to select the driver to choose
between aligned and unaligned tx buffers.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/renesas')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 6ff0b2626708..4f71e5699ca1 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -990,6 +990,7 @@ enum ravb_chip_id { struct ravb_hw_info { enum ravb_chip_id chip_id; + unsigned aligned_tx: 1; }; struct ravb_private { diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index b6554e5e13af..dbccf2cd89b2 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -1930,6 +1930,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = { static const struct ravb_hw_info ravb_gen2_hw_info = { .chip_id = RCAR_GEN2, + .aligned_tx = 1, }; static const struct of_device_id ravb_match_table[] = { @@ -2140,7 +2141,7 @@ static int ravb_probe(struct platform_device *pdev) ndev->max_mtu = 2048 - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN); ndev->min_mtu = ETH_MIN_MTU; - priv->num_tx_desc = info->chip_id == RCAR_GEN2 ? + priv->num_tx_desc = info->aligned_tx ? NUM_TX_DESC_GEN2 : NUM_TX_DESC_GEN3; /* Set function */ |