diff options
| author |   Biju Das <biju.das.jz@bp.renesas.com> | 2021-08-25 08:01:47 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-08-25 11:18:16 +0100 |
| commit | 1ae22c19e75cfbd36b24b43f9d8649b1988a4dff (patch) | |
| tree | 3adad9b16d5bb146c659a76f36e097501845394c /drivers | |
| parent | ravb: Factorise ravb_ring_free function (diff) | |
| download | linux-dev-1ae22c19e75cfbd36b24b43f9d8649b1988a4dff.tar.xz linux-dev-1ae22c19e75cfbd36b24b43f9d8649b1988a4dff.zip | |
ravb: Factorise ravb_ring_format function
The ravb_ring_format function uses an extended descriptor in RX
for R-Car compared to the normal descriptor for RZ/G2L. Factorise
RX ring buffer buildup to extend the support for later SoC.
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')
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 35 |
2 files changed, 24 insertions, 12 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index 7cb30319524a..dbf114d2ceef 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -981,6 +981,7 @@ struct ravb_ptp { struct ravb_hw_info { void (*rx_ring_free)(struct net_device *ndev, int q); + void (*rx_ring_format)(struct net_device *ndev, int q); const char (*gstrings_stats)[ETH_GSTRING_LEN]; size_t gstrings_size; netdev_features_t net_hw_features; diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index dc388a32496a..e52e36ccd1c6 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -282,25 +282,14 @@ static void ravb_ring_free(struct net_device *ndev, int q) priv->tx_skb[q] = NULL; } -/* Format skb and descriptor buffer for Ethernet AVB */ -static void ravb_ring_format(struct net_device *ndev, int q) +static void ravb_rx_ring_format(struct net_device *ndev, int q) { struct ravb_private *priv = netdev_priv(ndev); - unsigned int num_tx_desc = priv->num_tx_desc; struct ravb_ex_rx_desc *rx_desc; - struct ravb_tx_desc *tx_desc; - struct ravb_desc *desc; unsigned int rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q]; - unsigned int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] * - num_tx_desc; dma_addr_t dma_addr; unsigned int i; - priv->cur_rx[q] = 0; - priv->cur_tx[q] = 0; - priv->dirty_rx[q] = 0; - priv->dirty_tx[q] = 0; - memset(priv->rx_ring[q], 0, rx_ring_size); /* Build RX ring buffer */ for (i = 0; i < priv->num_rx_ring[q]; i++) { @@ -321,6 +310,26 @@ static void ravb_ring_format(struct net_device *ndev, int q) rx_desc = &priv->rx_ring[q][i]; rx_desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]); rx_desc->die_dt = DT_LINKFIX; /* type */ +} + +/* Format skb and descriptor buffer for Ethernet AVB */ +static void ravb_ring_format(struct net_device *ndev, int q) +{ + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; + unsigned int num_tx_desc = priv->num_tx_desc; + struct ravb_tx_desc *tx_desc; + struct ravb_desc *desc; + unsigned int tx_ring_size = sizeof(*tx_desc) * priv->num_tx_ring[q] * + num_tx_desc; + unsigned int i; + + priv->cur_rx[q] = 0; + priv->cur_tx[q] = 0; + priv->dirty_rx[q] = 0; + priv->dirty_tx[q] = 0; + + info->rx_ring_format(ndev, q); memset(priv->tx_ring[q], 0, tx_ring_size); /* Build TX ring buffer */ @@ -1949,6 +1958,7 @@ static int ravb_mdio_release(struct ravb_private *priv) static const struct ravb_hw_info ravb_gen3_hw_info = { .rx_ring_free = ravb_rx_ring_free, + .rx_ring_format = ravb_rx_ring_format, .gstrings_stats = ravb_gstrings_stats, .gstrings_size = sizeof(ravb_gstrings_stats), .net_hw_features = NETIF_F_RXCSUM, @@ -1963,6 +1973,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = { static const struct ravb_hw_info ravb_gen2_hw_info = { .rx_ring_free = ravb_rx_ring_free, + .rx_ring_format = ravb_rx_ring_format, .gstrings_stats = ravb_gstrings_stats, .gstrings_size = sizeof(ravb_gstrings_stats), .net_hw_features = NETIF_F_RXCSUM, |