diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2021-10-12 19:36:02 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-10-13 19:08:55 +0300 |
| commit | 3d4e37df882b0f4f28b7223a42492650b71252c5 (patch) | |
| tree | a523664b7cbac36935c37e5392e8f42b762a9e55 /drivers/net/ethernet/renesas | |
| parent | 2e95e08ac009273184c259848851d495258448c2 (diff) | |
| download | linux-3d4e37df882b0f4f28b7223a42492650b71252c5.tar.xz | |
ravb: Fillup ravb_alloc_rx_desc_gbeth() stub
Fillup ravb_alloc_rx_desc_gbeth() function to support RZ/G2L.
This patch also renames ravb_alloc_rx_desc to ravb_alloc_rx_desc_rcar
to be consistent with the naming convention used in sh_eth driver.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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 | 30 |
2 files changed, 24 insertions, 7 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index b147c4a0dc0b..ed771ead61b9 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -1038,6 +1038,7 @@ struct ravb_private { struct ravb_desc *desc_bat; dma_addr_t rx_desc_dma[NUM_RX_QUEUE]; dma_addr_t tx_desc_dma[NUM_TX_QUEUE]; + struct ravb_rx_desc *gbeth_rx_ring; struct ravb_ex_rx_desc *rx_ring[NUM_RX_QUEUE]; struct ravb_tx_desc *tx_ring[NUM_TX_QUEUE]; void *tx_align[NUM_TX_QUEUE]; diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index fe3449fb4135..c6bab0dfd3bc 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -385,11 +385,18 @@ static void ravb_ring_format(struct net_device *ndev, int q) static void *ravb_alloc_rx_desc_gbeth(struct net_device *ndev, int q) { - /* Place holder */ - return NULL; + struct ravb_private *priv = netdev_priv(ndev); + unsigned int ring_size; + + ring_size = sizeof(struct ravb_rx_desc) * (priv->num_rx_ring[q] + 1); + + priv->gbeth_rx_ring = dma_alloc_coherent(ndev->dev.parent, ring_size, + &priv->rx_desc_dma[q], + GFP_KERNEL); + return priv->gbeth_rx_ring; } -static void *ravb_alloc_rx_desc(struct net_device *ndev, int q) +static void *ravb_alloc_rx_desc_rcar(struct net_device *ndev, int q) { struct ravb_private *priv = netdev_priv(ndev); unsigned int ring_size; @@ -1084,16 +1091,25 @@ static int ravb_poll(struct napi_struct *napi, int budget) struct net_device *ndev = napi->dev; struct ravb_private *priv = netdev_priv(ndev); const struct ravb_hw_info *info = priv->info; + bool gptp = info->gptp || info->ccc_gac; + struct ravb_rx_desc *desc; unsigned long flags; int q = napi - priv->napi; int mask = BIT(q); int quota = budget; + unsigned int entry; + if (!gptp) { + entry = priv->cur_rx[q] % priv->num_rx_ring[q]; + desc = &priv->gbeth_rx_ring[entry]; + } /* Processing RX Descriptor Ring */ /* Clear RX interrupt */ ravb_write(ndev, ~(mask | RIS0_RESERVED), RIS0); - if (ravb_rx(ndev, "a, q)) - goto out; + if (gptp || desc->die_dt != DT_FEMPTY) { + if (ravb_rx(ndev, "a, q)) + goto out; + } /* Processing TX Descriptor Ring */ spin_lock_irqsave(&priv->lock, flags); @@ -2175,7 +2191,7 @@ 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, - .alloc_rx_desc = ravb_alloc_rx_desc, + .alloc_rx_desc = ravb_alloc_rx_desc_rcar, .receive = ravb_rcar_rx, .set_rate = ravb_set_rate_rcar, .set_feature = ravb_set_features_rcar, @@ -2200,7 +2216,7 @@ 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, - .alloc_rx_desc = ravb_alloc_rx_desc, + .alloc_rx_desc = ravb_alloc_rx_desc_rcar, .receive = ravb_rcar_rx, .set_rate = ravb_set_rate_rcar, .set_feature = ravb_set_features_rcar, |