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ravb: Fillup ravb_rx_ring_format_gbeth() stub

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Fillup ravb_rx_ring_format_gbeth() function to support RZ/G2L.

This patch also renames ravb_rx_ring_format to ravb_rx_ring_format_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>
This commit is contained in:
Biju Das 2021-10-12 17:36:04 +01:00 committed by Jakub Kicinski
parent 2458b8edb8
commit 16a6e245a9
2 changed files with 31 additions and 4 deletions
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1
drivers/net/ethernet/renesas/ravb.h
View File

@ -970,6 +970,7 @@ enum CXR31_BIT {
#define RX_BUF_SZ (2048 - ETH_FCS_LEN + sizeof(__sum16))
#define GBETH_RX_BUFF_MAX 8192
#define GBETH_RX_DESC_DATA_SIZE 4080
struct ravb_tstamp_skb {
struct list_head list;

34
drivers/net/ethernet/renesas/ravb_main.c
View File

@ -327,10 +327,36 @@ static void ravb_ring_free(struct net_device *ndev, int q)
static void ravb_rx_ring_format_gbeth(struct net_device *ndev, int q)
{
/* Place holder */
struct ravb_private *priv = netdev_priv(ndev);
struct ravb_rx_desc *rx_desc;
unsigned int rx_ring_size;
dma_addr_t dma_addr;
unsigned int i;
rx_ring_size = sizeof(*rx_desc) * priv->num_rx_ring[q];
memset(priv->gbeth_rx_ring, 0, rx_ring_size);
/* Build RX ring buffer */
for (i = 0; i < priv->num_rx_ring[q]; i++) {
/* RX descriptor */
rx_desc = &priv->gbeth_rx_ring[i];
rx_desc->ds_cc = cpu_to_le16(GBETH_RX_DESC_DATA_SIZE);
dma_addr = dma_map_single(ndev->dev.parent, priv->rx_skb[q][i]->data,
GBETH_RX_BUFF_MAX,
DMA_FROM_DEVICE);
/* We just set the data size to 0 for a failed mapping which
* should prevent DMA from happening...
*/
if (dma_mapping_error(ndev->dev.parent, dma_addr))
rx_desc->ds_cc = cpu_to_le16(0);
rx_desc->dptr = cpu_to_le32(dma_addr);
rx_desc->die_dt = DT_FEMPTY;
}
rx_desc = &priv->gbeth_rx_ring[i];
rx_desc->dptr = cpu_to_le32((u32)priv->rx_desc_dma[q]);
rx_desc->die_dt = DT_LINKFIX; /* type */
}
static void ravb_rx_ring_format(struct net_device *ndev, int q)
static void ravb_rx_ring_format_rcar(struct net_device *ndev, int q)
{
struct ravb_private *priv = netdev_priv(ndev);
struct ravb_ex_rx_desc *rx_desc;
@ -2210,7 +2236,7 @@ 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_rcar,
.rx_ring_format = ravb_rx_ring_format,
.rx_ring_format = ravb_rx_ring_format_rcar,
.alloc_rx_desc = ravb_alloc_rx_desc_rcar,
.receive = ravb_rcar_rx,
.set_rate = ravb_set_rate_rcar,
@ -2235,7 +2261,7 @@ 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_rcar,
.rx_ring_format = ravb_rx_ring_format,
.rx_ring_format = ravb_rx_ring_format_rcar,
.alloc_rx_desc = ravb_alloc_rx_desc_rcar,
.receive = ravb_rcar_rx,
.set_rate = ravb_set_rate_rcar,