diff options
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 13 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/davinci_cpdma.h | 1 |
4 files changed, 10 insertions, 11 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index f2a4cd6be14f..83273288aefc 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1277,6 +1277,7 @@ static int cpsw_ndo_open(struct net_device *ndev) if (!cpsw_common_res_usage_state(priv)) { struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0); + int buf_num; /* setup tx dma to fixed prio and zero offset */ cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1); @@ -1304,10 +1305,8 @@ static int cpsw_ndo_open(struct net_device *ndev) enable_irq(priv->irqs_table[0]); } - if (WARN_ON(!priv->data.rx_descs)) - priv->data.rx_descs = 128; - - for (i = 0; i < priv->data.rx_descs; i++) { + buf_num = cpdma_chan_get_rx_buf_num(priv->dma); + for (i = 0; i < buf_num; i++) { struct sk_buff *skb; ret = -ENOMEM; @@ -1998,12 +1997,6 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, } data->bd_ram_size = prop; - if (of_property_read_u32(node, "rx_descs", &prop)) { - dev_err(&pdev->dev, "Missing rx_descs property in the DT.\n"); - return -EINVAL; - } - data->rx_descs = prop; - if (of_property_read_u32(node, "mac_control", &prop)) { dev_err(&pdev->dev, "Missing mac_control property in the DT.\n"); return -EINVAL; diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h index e50afd1b2eda..16b54c6f32c2 100644 --- a/drivers/net/ethernet/ti/cpsw.h +++ b/drivers/net/ethernet/ti/cpsw.h @@ -35,7 +35,6 @@ struct cpsw_platform_data { u32 cpts_clock_shift; /* convert input clock ticks to nanoseconds */ u32 ale_entries; /* ale table size */ u32 bd_ram_size; /*buffer descriptor ram size */ - u32 rx_descs; /* Number of Rx Descriptios */ u32 mac_control; /* Mac control register */ u16 default_vlan; /* Def VLAN for ALE lookup in VLAN aware mode*/ bool dual_emac; /* Enable Dual EMAC mode */ diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index 18bf3a8fdc50..bcd9e455457e 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -543,6 +543,12 @@ struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, } EXPORT_SYMBOL_GPL(cpdma_chan_create); +int cpdma_chan_get_rx_buf_num(struct cpdma_ctlr *ctlr) +{ + return ctlr->pool->num_desc / 2; +} +EXPORT_SYMBOL_GPL(cpdma_chan_get_rx_buf_num); + int cpdma_chan_destroy(struct cpdma_chan *chan) { struct cpdma_ctlr *ctlr; diff --git a/drivers/net/ethernet/ti/davinci_cpdma.h b/drivers/net/ethernet/ti/davinci_cpdma.h index 86dee487f2f0..80c015cbbce5 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.h +++ b/drivers/net/ethernet/ti/davinci_cpdma.h @@ -81,6 +81,7 @@ int cpdma_ctlr_dump(struct cpdma_ctlr *ctlr); struct cpdma_chan *cpdma_chan_create(struct cpdma_ctlr *ctlr, int chan_num, cpdma_handler_fn handler); +int cpdma_chan_get_rx_buf_num(struct cpdma_ctlr *ctlr); int cpdma_chan_destroy(struct cpdma_chan *chan); int cpdma_chan_start(struct cpdma_chan *chan); int cpdma_chan_stop(struct cpdma_chan *chan); |