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authorBiju Das <biju.das.jz@bp.renesas.com>2021-10-12 19:36:02 +0300
committerJakub Kicinski <kuba@kernel.org>2021-10-13 19:08:55 +0300
commit3d4e37df882b0f4f28b7223a42492650b71252c5 (patch)
treea523664b7cbac36935c37e5392e8f42b762a9e55 /drivers/net/ethernet/renesas
parent2e95e08ac009273184c259848851d495258448c2 (diff)
downloadlinux-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.h1
-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c30
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, &quota, q))
- goto out;
+ if (gptp || desc->die_dt != DT_FEMPTY) {
+ if (ravb_rx(ndev, &quota, 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,