|
|
|
|
@ -2887,7 +2887,7 @@
|
|
|
|
|
+
|
|
|
|
|
+ /* Display RX ring */
|
|
|
|
|
+ priv->hw->desc->display_ring(head_rx, DMA_RX_SIZE, true);
|
|
|
|
|
}
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static void stmmac_display_tx_rings(struct stmmac_priv *priv)
|
|
|
|
|
@ -2906,15 +2906,15 @@
|
|
|
|
|
+ head_tx = (void *)tx_q->dma_etx;
|
|
|
|
|
+ else
|
|
|
|
|
+ head_tx = (void *)tx_q->dma_tx;
|
|
|
|
|
+
|
|
|
|
|
+ priv->hw->desc->display_ring(head_tx, DMA_TX_SIZE, false);
|
|
|
|
|
}
|
|
|
|
|
+}
|
|
|
|
|
|
|
|
|
|
- /* Display Rx ring */
|
|
|
|
|
- priv->hw->desc->display_ring(head_rx, DMA_RX_SIZE, true);
|
|
|
|
|
- /* Display Tx ring */
|
|
|
|
|
- priv->hw->desc->display_ring(head_tx, DMA_TX_SIZE, false);
|
|
|
|
|
+ priv->hw->desc->display_ring(head_tx, DMA_TX_SIZE, false);
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+static void stmmac_display_rings(struct stmmac_priv *priv)
|
|
|
|
|
+{
|
|
|
|
|
+ /* Display RX ring */
|
|
|
|
|
@ -3131,7 +3131,7 @@
|
|
|
|
|
|
|
|
|
|
if (priv->hw->mode->set_16kib_bfsize)
|
|
|
|
|
bfsize = priv->hw->mode->set_16kib_bfsize(dev->mtu);
|
|
|
|
|
@@ -1018,235 +1228,409 @@ static int init_dma_desc_rings(struct ne
|
|
|
|
|
@@ -1018,257 +1228,516 @@ static int init_dma_desc_rings(struct ne
|
|
|
|
|
|
|
|
|
|
priv->dma_buf_sz = bfsize;
|
|
|
|
|
|
|
|
|
|
@ -3163,7 +3163,10 @@
|
|
|
|
|
+ p = &((rx_q->dma_erx + i)->basic);
|
|
|
|
|
+ else
|
|
|
|
|
+ p = rx_q->dma_rx + i;
|
|
|
|
|
+
|
|
|
|
|
|
|
|
|
|
- ret = stmmac_init_rx_buffers(priv, p, i, flags);
|
|
|
|
|
- if (ret)
|
|
|
|
|
- goto err_init_rx_buffers;
|
|
|
|
|
+ ret = stmmac_init_rx_buffers(priv, p, i, flags,
|
|
|
|
|
+ queue);
|
|
|
|
|
+ if (ret)
|
|
|
|
|
@ -3173,18 +3176,15 @@
|
|
|
|
|
+ rx_q->rx_skbuff[i], rx_q->rx_skbuff[i]->data,
|
|
|
|
|
+ (unsigned int)rx_q->rx_skbuff_dma[i]);
|
|
|
|
|
+ }
|
|
|
|
|
|
|
|
|
|
- ret = stmmac_init_rx_buffers(priv, p, i, flags);
|
|
|
|
|
- if (ret)
|
|
|
|
|
- goto err_init_rx_buffers;
|
|
|
|
|
+
|
|
|
|
|
+ rx_q->cur_rx = 0;
|
|
|
|
|
+ rx_q->dirty_rx = (unsigned int)(i - DMA_RX_SIZE);
|
|
|
|
|
+
|
|
|
|
|
+ stmmac_clear_rx_descriptors(priv, queue);
|
|
|
|
|
|
|
|
|
|
- netif_dbg(priv, probe, priv->dev, "[%p]\t[%p]\t[%x]\n",
|
|
|
|
|
- priv->rx_skbuff[i], priv->rx_skbuff[i]->data,
|
|
|
|
|
- (unsigned int)priv->rx_skbuff_dma[i]);
|
|
|
|
|
+ stmmac_clear_rx_descriptors(priv, queue);
|
|
|
|
|
+
|
|
|
|
|
+ /* Setup the chained descriptor addresses */
|
|
|
|
|
+ if (priv->mode == STMMAC_CHAIN_MODE) {
|
|
|
|
|
+ if (priv->extend_desc)
|
|
|
|
|
@ -3277,8 +3277,13 @@
|
|
|
|
|
+ priv->hw->mode->init(tx_q->dma_tx,
|
|
|
|
|
+ tx_q->dma_tx_phy,
|
|
|
|
|
+ DMA_TX_SIZE, 0);
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
- priv->tx_skbuff_dma[i].buf = 0;
|
|
|
|
|
- priv->tx_skbuff_dma[i].map_as_page = false;
|
|
|
|
|
- priv->tx_skbuff_dma[i].len = 0;
|
|
|
|
|
- priv->tx_skbuff_dma[i].last_segment = false;
|
|
|
|
|
- priv->tx_skbuff[i] = NULL;
|
|
|
|
|
+ for (i = 0; i < DMA_TX_SIZE; i++) {
|
|
|
|
|
+ struct dma_desc *p;
|
|
|
|
|
+ if (priv->extend_desc)
|
|
|
|
|
@ -3300,13 +3305,8 @@
|
|
|
|
|
+ tx_q->tx_skbuff_dma[i].len = 0;
|
|
|
|
|
+ tx_q->tx_skbuff_dma[i].last_segment = false;
|
|
|
|
|
+ tx_q->tx_skbuff[i] = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
- priv->tx_skbuff_dma[i].buf = 0;
|
|
|
|
|
- priv->tx_skbuff_dma[i].map_as_page = false;
|
|
|
|
|
- priv->tx_skbuff_dma[i].len = 0;
|
|
|
|
|
- priv->tx_skbuff_dma[i].last_segment = false;
|
|
|
|
|
- priv->tx_skbuff[i] = NULL;
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ tx_q->dirty_tx = 0;
|
|
|
|
|
+ tx_q->cur_tx = 0;
|
|
|
|
|
+
|
|
|
|
|
@ -3387,17 +3387,10 @@
|
|
|
|
|
- priv->tx_skbuff_dma[i].buf,
|
|
|
|
|
- priv->tx_skbuff_dma[i].len,
|
|
|
|
|
- DMA_TO_DEVICE);
|
|
|
|
|
- }
|
|
|
|
|
+ for (i = 0; i < DMA_TX_SIZE; i++)
|
|
|
|
|
+ stmmac_free_tx_buffer(priv, queue, i);
|
|
|
|
|
+}
|
|
|
|
|
|
|
|
|
|
- if (priv->tx_skbuff[i]) {
|
|
|
|
|
- dev_kfree_skb_any(priv->tx_skbuff[i]);
|
|
|
|
|
- priv->tx_skbuff[i] = NULL;
|
|
|
|
|
- priv->tx_skbuff_dma[i].buf = 0;
|
|
|
|
|
- priv->tx_skbuff_dma[i].map_as_page = false;
|
|
|
|
|
- }
|
|
|
|
|
+
|
|
|
|
|
+/**
|
|
|
|
|
+ * free_dma_rx_desc_resources - free RX dma desc resources
|
|
|
|
|
+ * @priv: private structure
|
|
|
|
|
@ -3426,11 +3419,10 @@
|
|
|
|
|
+
|
|
|
|
|
+ kfree(rx_q->rx_skbuff_dma);
|
|
|
|
|
+ kfree(rx_q->rx_skbuff);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
- * alloc_dma_desc_resources - alloc TX/RX resources.
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/**
|
|
|
|
|
+ * free_dma_tx_desc_resources - free TX dma desc resources
|
|
|
|
|
+ * @priv: private structure
|
|
|
|
|
+ */
|
|
|
|
|
@ -3463,90 +3455,36 @@
|
|
|
|
|
+
|
|
|
|
|
+/**
|
|
|
|
|
+ * alloc_dma_rx_desc_resources - alloc RX resources.
|
|
|
|
|
* @priv: private structure
|
|
|
|
|
* Description: according to which descriptor can be used (extend or basic)
|
|
|
|
|
* this function allocates the resources for TX and RX paths. In case of
|
|
|
|
|
* reception, for example, it pre-allocated the RX socket buffer in order to
|
|
|
|
|
* allow zero-copy mechanism.
|
|
|
|
|
*/
|
|
|
|
|
-static int alloc_dma_desc_resources(struct stmmac_priv *priv)
|
|
|
|
|
+ * @priv: private structure
|
|
|
|
|
+ * Description: according to which descriptor can be used (extend or basic)
|
|
|
|
|
+ * this function allocates the resources for TX and RX paths. In case of
|
|
|
|
|
+ * reception, for example, it pre-allocated the RX socket buffer in order to
|
|
|
|
|
+ * allow zero-copy mechanism.
|
|
|
|
|
+ */
|
|
|
|
|
+static int alloc_dma_rx_desc_resources(struct stmmac_priv *priv)
|
|
|
|
|
{
|
|
|
|
|
+{
|
|
|
|
|
+ u32 rx_count = priv->plat->rx_queues_to_use;
|
|
|
|
|
int ret = -ENOMEM;
|
|
|
|
|
+ int ret = -ENOMEM;
|
|
|
|
|
+ u32 queue;
|
|
|
|
|
|
|
|
|
|
- priv->rx_skbuff_dma = kmalloc_array(DMA_RX_SIZE, sizeof(dma_addr_t),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->rx_skbuff_dma)
|
|
|
|
|
- return -ENOMEM;
|
|
|
|
|
+
|
|
|
|
|
+ /* RX queues buffers and DMA */
|
|
|
|
|
+ for (queue = 0; queue < rx_count; queue++) {
|
|
|
|
|
+ struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue];
|
|
|
|
|
|
|
|
|
|
- priv->rx_skbuff = kmalloc_array(DMA_RX_SIZE, sizeof(struct sk_buff *),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->rx_skbuff)
|
|
|
|
|
- goto err_rx_skbuff;
|
|
|
|
|
-
|
|
|
|
|
- priv->tx_skbuff_dma = kmalloc_array(DMA_TX_SIZE,
|
|
|
|
|
- sizeof(*priv->tx_skbuff_dma),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->tx_skbuff_dma)
|
|
|
|
|
- goto err_tx_skbuff_dma;
|
|
|
|
|
-
|
|
|
|
|
- priv->tx_skbuff = kmalloc_array(DMA_TX_SIZE, sizeof(struct sk_buff *),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->tx_skbuff)
|
|
|
|
|
- goto err_tx_skbuff;
|
|
|
|
|
-
|
|
|
|
|
- if (priv->extend_desc) {
|
|
|
|
|
- priv->dma_erx = dma_zalloc_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct
|
|
|
|
|
- dma_extended_desc),
|
|
|
|
|
- &priv->dma_rx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_erx)
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
+
|
|
|
|
|
+ rx_q->queue_index = queue;
|
|
|
|
|
+ rx_q->priv_data = priv;
|
|
|
|
|
|
|
|
|
|
- priv->dma_etx = dma_zalloc_coherent(priv->device, DMA_TX_SIZE *
|
|
|
|
|
- sizeof(struct
|
|
|
|
|
- dma_extended_desc),
|
|
|
|
|
- &priv->dma_tx_phy,
|
|
|
|
|
+
|
|
|
|
|
+ rx_q->rx_skbuff_dma = kmalloc_array(DMA_RX_SIZE,
|
|
|
|
|
+ sizeof(dma_addr_t),
|
|
|
|
|
GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_etx) {
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_extended_desc),
|
|
|
|
|
- priv->dma_erx, priv->dma_rx_phy);
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
- }
|
|
|
|
|
- } else {
|
|
|
|
|
- priv->dma_rx = dma_zalloc_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_desc),
|
|
|
|
|
- &priv->dma_rx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_rx)
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
+ GFP_KERNEL);
|
|
|
|
|
+ if (!rx_q->rx_skbuff_dma)
|
|
|
|
|
+ return -ENOMEM;
|
|
|
|
|
|
|
|
|
|
- priv->dma_tx = dma_zalloc_coherent(priv->device, DMA_TX_SIZE *
|
|
|
|
|
- sizeof(struct dma_desc),
|
|
|
|
|
- &priv->dma_tx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_tx) {
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_desc),
|
|
|
|
|
- priv->dma_rx, priv->dma_rx_phy);
|
|
|
|
|
+
|
|
|
|
|
+ rx_q->rx_skbuff = kmalloc_array(DMA_RX_SIZE,
|
|
|
|
|
+ sizeof(struct sk_buff *),
|
|
|
|
|
+ GFP_KERNEL);
|
|
|
|
|
+ if (!rx_q->rx_skbuff)
|
|
|
|
|
goto err_dma;
|
|
|
|
|
+ goto err_dma;
|
|
|
|
|
+
|
|
|
|
|
+ if (priv->extend_desc) {
|
|
|
|
|
+ rx_q->dma_erx = dma_zalloc_coherent(priv->device,
|
|
|
|
|
@ -3567,19 +3505,12 @@
|
|
|
|
|
+ GFP_KERNEL);
|
|
|
|
|
+ if (!rx_q->dma_rx)
|
|
|
|
|
+ goto err_dma;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
err_dma:
|
|
|
|
|
- kfree(priv->tx_skbuff);
|
|
|
|
|
-err_tx_skbuff:
|
|
|
|
|
- kfree(priv->tx_skbuff_dma);
|
|
|
|
|
-err_tx_skbuff_dma:
|
|
|
|
|
- kfree(priv->rx_skbuff);
|
|
|
|
|
-err_rx_skbuff:
|
|
|
|
|
- kfree(priv->rx_skbuff_dma);
|
|
|
|
|
+ }
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return 0;
|
|
|
|
|
+
|
|
|
|
|
+err_dma:
|
|
|
|
|
+ free_dma_rx_desc_resources(priv);
|
|
|
|
|
+
|
|
|
|
|
+ return ret;
|
|
|
|
|
@ -3636,7 +3567,7 @@
|
|
|
|
|
+ GFP_KERNEL);
|
|
|
|
|
+ if (!tx_q->dma_tx)
|
|
|
|
|
+ goto err_dma_buffers;
|
|
|
|
|
+ }
|
|
|
|
|
}
|
|
|
|
|
+ }
|
|
|
|
|
+
|
|
|
|
|
+ return 0;
|
|
|
|
|
@ -3644,9 +3575,9 @@
|
|
|
|
|
+err_dma_buffers:
|
|
|
|
|
+ free_dma_tx_desc_resources(priv);
|
|
|
|
|
+
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
+ return ret;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/**
|
|
|
|
|
+ * alloc_dma_desc_resources - alloc TX/RX resources.
|
|
|
|
|
+ * @priv: private structure
|
|
|
|
|
@ -3672,78 +3603,119 @@
|
|
|
|
|
+ * free_dma_desc_resources - free dma desc resources
|
|
|
|
|
+ * @priv: private structure
|
|
|
|
|
+ */
|
|
|
|
|
static void free_dma_desc_resources(struct stmmac_priv *priv)
|
|
|
|
|
{
|
|
|
|
|
- /* Release the DMA TX/RX socket buffers */
|
|
|
|
|
- dma_free_rx_skbufs(priv);
|
|
|
|
|
- dma_free_tx_skbufs(priv);
|
|
|
|
|
-
|
|
|
|
|
- /* Free DMA regions of consistent memory previously allocated */
|
|
|
|
|
- if (!priv->extend_desc) {
|
|
|
|
|
- dma_free_coherent(priv->device,
|
|
|
|
|
- DMA_TX_SIZE * sizeof(struct dma_desc),
|
|
|
|
|
- priv->dma_tx, priv->dma_tx_phy);
|
|
|
|
|
- dma_free_coherent(priv->device,
|
|
|
|
|
- DMA_RX_SIZE * sizeof(struct dma_desc),
|
|
|
|
|
- priv->dma_rx, priv->dma_rx_phy);
|
|
|
|
|
- } else {
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_TX_SIZE *
|
|
|
|
|
- sizeof(struct dma_extended_desc),
|
|
|
|
|
- priv->dma_etx, priv->dma_tx_phy);
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_extended_desc),
|
|
|
|
|
- priv->dma_erx, priv->dma_rx_phy);
|
|
|
|
|
- }
|
|
|
|
|
- kfree(priv->rx_skbuff_dma);
|
|
|
|
|
- kfree(priv->rx_skbuff);
|
|
|
|
|
- kfree(priv->tx_skbuff_dma);
|
|
|
|
|
- kfree(priv->tx_skbuff);
|
|
|
|
|
+static void free_dma_desc_resources(struct stmmac_priv *priv)
|
|
|
|
|
+{
|
|
|
|
|
+ /* Release the DMA RX socket buffers */
|
|
|
|
|
+ free_dma_rx_desc_resources(priv);
|
|
|
|
|
+
|
|
|
|
|
+ /* Release the DMA TX socket buffers */
|
|
|
|
|
+ free_dma_tx_desc_resources(priv);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
@@ -1256,19 +1640,104 @@ static void free_dma_desc_resources(stru
|
|
|
|
|
*/
|
|
|
|
|
static void stmmac_mac_enable_rx_queues(struct stmmac_priv *priv)
|
|
|
|
|
{
|
|
|
|
|
- int rx_count = priv->dma_cap.number_rx_queues;
|
|
|
|
|
- int queue = 0;
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/**
|
|
|
|
|
+ * stmmac_mac_enable_rx_queues - Enable MAC rx queues
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
+ * Description: It is used for enabling the rx queues in the MAC
|
|
|
|
|
+ */
|
|
|
|
|
+static void stmmac_mac_enable_rx_queues(struct stmmac_priv *priv)
|
|
|
|
|
+{
|
|
|
|
|
+ u32 rx_queues_count = priv->plat->rx_queues_to_use;
|
|
|
|
|
+ int queue;
|
|
|
|
|
+ u8 mode;
|
|
|
|
|
|
|
|
|
|
- /* If GMAC does not have multiple queues, then this is not necessary*/
|
|
|
|
|
- if (rx_count == 1)
|
|
|
|
|
- return;
|
|
|
|
|
- if (priv->tx_skbuff[i]) {
|
|
|
|
|
- dev_kfree_skb_any(priv->tx_skbuff[i]);
|
|
|
|
|
- priv->tx_skbuff[i] = NULL;
|
|
|
|
|
- priv->tx_skbuff_dma[i].buf = 0;
|
|
|
|
|
- priv->tx_skbuff_dma[i].map_as_page = false;
|
|
|
|
|
- }
|
|
|
|
|
+ for (queue = 0; queue < rx_queues_count; queue++) {
|
|
|
|
|
+ mode = priv->plat->rx_queues_cfg[queue].mode_to_use;
|
|
|
|
|
+ priv->hw->mac->rx_queue_enable(priv->hw, mode, queue);
|
|
|
|
|
+ }
|
|
|
|
|
+}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
- /**
|
|
|
|
|
- * If the core is synthesized with multiple rx queues / multiple
|
|
|
|
|
- * dma channels, then rx queues will be disabled by default.
|
|
|
|
|
- * For now only rx queue 0 is enabled.
|
|
|
|
|
- */
|
|
|
|
|
- priv->hw->mac->rx_queue_enable(priv->hw, queue);
|
|
|
|
|
+/**
|
|
|
|
|
/**
|
|
|
|
|
- * alloc_dma_desc_resources - alloc TX/RX resources.
|
|
|
|
|
- * @priv: private structure
|
|
|
|
|
- * Description: according to which descriptor can be used (extend or basic)
|
|
|
|
|
- * this function allocates the resources for TX and RX paths. In case of
|
|
|
|
|
- * reception, for example, it pre-allocated the RX socket buffer in order to
|
|
|
|
|
- * allow zero-copy mechanism.
|
|
|
|
|
+ * stmmac_start_rx_dma - start RX DMA channel
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
+ * @chan: RX channel index
|
|
|
|
|
+ * Description:
|
|
|
|
|
+ * This starts a RX DMA channel
|
|
|
|
|
+ */
|
|
|
|
|
*/
|
|
|
|
|
-static int alloc_dma_desc_resources(struct stmmac_priv *priv)
|
|
|
|
|
+static void stmmac_start_rx_dma(struct stmmac_priv *priv, u32 chan)
|
|
|
|
|
+{
|
|
|
|
|
{
|
|
|
|
|
- int ret = -ENOMEM;
|
|
|
|
|
-
|
|
|
|
|
- priv->rx_skbuff_dma = kmalloc_array(DMA_RX_SIZE, sizeof(dma_addr_t),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->rx_skbuff_dma)
|
|
|
|
|
- return -ENOMEM;
|
|
|
|
|
-
|
|
|
|
|
- priv->rx_skbuff = kmalloc_array(DMA_RX_SIZE, sizeof(struct sk_buff *),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->rx_skbuff)
|
|
|
|
|
- goto err_rx_skbuff;
|
|
|
|
|
-
|
|
|
|
|
- priv->tx_skbuff_dma = kmalloc_array(DMA_TX_SIZE,
|
|
|
|
|
- sizeof(*priv->tx_skbuff_dma),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->tx_skbuff_dma)
|
|
|
|
|
- goto err_tx_skbuff_dma;
|
|
|
|
|
-
|
|
|
|
|
- priv->tx_skbuff = kmalloc_array(DMA_TX_SIZE, sizeof(struct sk_buff *),
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->tx_skbuff)
|
|
|
|
|
- goto err_tx_skbuff;
|
|
|
|
|
-
|
|
|
|
|
- if (priv->extend_desc) {
|
|
|
|
|
- priv->dma_erx = dma_zalloc_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct
|
|
|
|
|
- dma_extended_desc),
|
|
|
|
|
- &priv->dma_rx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_erx)
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
-
|
|
|
|
|
- priv->dma_etx = dma_zalloc_coherent(priv->device, DMA_TX_SIZE *
|
|
|
|
|
- sizeof(struct
|
|
|
|
|
- dma_extended_desc),
|
|
|
|
|
- &priv->dma_tx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_etx) {
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_extended_desc),
|
|
|
|
|
- priv->dma_erx, priv->dma_rx_phy);
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
- }
|
|
|
|
|
- } else {
|
|
|
|
|
- priv->dma_rx = dma_zalloc_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_desc),
|
|
|
|
|
- &priv->dma_rx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_rx)
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
+ netdev_dbg(priv->dev, "DMA RX processes started in channel %d\n", chan);
|
|
|
|
|
+ priv->hw->dma->start_rx(priv->ioaddr, chan);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
|
|
|
|
|
- priv->dma_tx = dma_zalloc_coherent(priv->device, DMA_TX_SIZE *
|
|
|
|
|
- sizeof(struct dma_desc),
|
|
|
|
|
- &priv->dma_tx_phy,
|
|
|
|
|
- GFP_KERNEL);
|
|
|
|
|
- if (!priv->dma_tx) {
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_desc),
|
|
|
|
|
- priv->dma_rx, priv->dma_rx_phy);
|
|
|
|
|
- goto err_dma;
|
|
|
|
|
- }
|
|
|
|
|
- }
|
|
|
|
|
+/**
|
|
|
|
|
+ * stmmac_start_tx_dma - start TX DMA channel
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
@ -3756,7 +3728,8 @@
|
|
|
|
|
+ netdev_dbg(priv->dev, "DMA TX processes started in channel %d\n", chan);
|
|
|
|
|
+ priv->hw->dma->start_tx(priv->ioaddr, chan);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
|
|
|
|
|
- return 0;
|
|
|
|
|
+/**
|
|
|
|
|
+ * stmmac_stop_rx_dma - stop RX DMA channel
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
@ -3769,7 +3742,16 @@
|
|
|
|
|
+ netdev_dbg(priv->dev, "DMA RX processes stopped in channel %d\n", chan);
|
|
|
|
|
+ priv->hw->dma->stop_rx(priv->ioaddr, chan);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
|
|
|
|
|
-err_dma:
|
|
|
|
|
- kfree(priv->tx_skbuff);
|
|
|
|
|
-err_tx_skbuff:
|
|
|
|
|
- kfree(priv->tx_skbuff_dma);
|
|
|
|
|
-err_tx_skbuff_dma:
|
|
|
|
|
- kfree(priv->rx_skbuff);
|
|
|
|
|
-err_rx_skbuff:
|
|
|
|
|
- kfree(priv->rx_skbuff_dma);
|
|
|
|
|
- return ret;
|
|
|
|
|
+/**
|
|
|
|
|
+ * stmmac_stop_tx_dma - stop TX DMA channel
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
@ -3781,8 +3763,9 @@
|
|
|
|
|
+{
|
|
|
|
|
+ netdev_dbg(priv->dev, "DMA TX processes stopped in channel %d\n", chan);
|
|
|
|
|
+ priv->hw->dma->stop_tx(priv->ioaddr, chan);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
-static void free_dma_desc_resources(struct stmmac_priv *priv)
|
|
|
|
|
+/**
|
|
|
|
|
+ * stmmac_start_all_dma - start all RX and TX DMA channels
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
@ -3790,7 +3773,31 @@
|
|
|
|
|
+ * This starts all the RX and TX DMA channels
|
|
|
|
|
+ */
|
|
|
|
|
+static void stmmac_start_all_dma(struct stmmac_priv *priv)
|
|
|
|
|
+{
|
|
|
|
|
{
|
|
|
|
|
- /* Release the DMA TX/RX socket buffers */
|
|
|
|
|
- dma_free_rx_skbufs(priv);
|
|
|
|
|
- dma_free_tx_skbufs(priv);
|
|
|
|
|
-
|
|
|
|
|
- /* Free DMA regions of consistent memory previously allocated */
|
|
|
|
|
- if (!priv->extend_desc) {
|
|
|
|
|
- dma_free_coherent(priv->device,
|
|
|
|
|
- DMA_TX_SIZE * sizeof(struct dma_desc),
|
|
|
|
|
- priv->dma_tx, priv->dma_tx_phy);
|
|
|
|
|
- dma_free_coherent(priv->device,
|
|
|
|
|
- DMA_RX_SIZE * sizeof(struct dma_desc),
|
|
|
|
|
- priv->dma_rx, priv->dma_rx_phy);
|
|
|
|
|
- } else {
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_TX_SIZE *
|
|
|
|
|
- sizeof(struct dma_extended_desc),
|
|
|
|
|
- priv->dma_etx, priv->dma_tx_phy);
|
|
|
|
|
- dma_free_coherent(priv->device, DMA_RX_SIZE *
|
|
|
|
|
- sizeof(struct dma_extended_desc),
|
|
|
|
|
- priv->dma_erx, priv->dma_rx_phy);
|
|
|
|
|
- }
|
|
|
|
|
- kfree(priv->rx_skbuff_dma);
|
|
|
|
|
- kfree(priv->rx_skbuff);
|
|
|
|
|
- kfree(priv->tx_skbuff_dma);
|
|
|
|
|
- kfree(priv->tx_skbuff);
|
|
|
|
|
+ u32 rx_channels_count = priv->plat->rx_queues_to_use;
|
|
|
|
|
+ u32 tx_channels_count = priv->plat->tx_queues_to_use;
|
|
|
|
|
+ u32 chan = 0;
|
|
|
|
|
@ -3800,23 +3807,38 @@
|
|
|
|
|
+
|
|
|
|
|
+ for (chan = 0; chan < tx_channels_count; chan++)
|
|
|
|
|
+ stmmac_start_tx_dma(priv, chan);
|
|
|
|
|
+}
|
|
|
|
|
+
|
|
|
|
|
+/**
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
- * stmmac_mac_enable_rx_queues - Enable MAC rx queues
|
|
|
|
|
- * @priv: driver private structure
|
|
|
|
|
- * Description: It is used for enabling the rx queues in the MAC
|
|
|
|
|
+ * stmmac_stop_all_dma - stop all RX and TX DMA channels
|
|
|
|
|
+ * @priv: driver private structure
|
|
|
|
|
+ * Description:
|
|
|
|
|
+ * This stops the RX and TX DMA channels
|
|
|
|
|
+ */
|
|
|
|
|
*/
|
|
|
|
|
-static void stmmac_mac_enable_rx_queues(struct stmmac_priv *priv)
|
|
|
|
|
+static void stmmac_stop_all_dma(struct stmmac_priv *priv)
|
|
|
|
|
+{
|
|
|
|
|
{
|
|
|
|
|
- int rx_count = priv->dma_cap.number_rx_queues;
|
|
|
|
|
- int queue = 0;
|
|
|
|
|
+ u32 rx_channels_count = priv->plat->rx_queues_to_use;
|
|
|
|
|
+ u32 tx_channels_count = priv->plat->tx_queues_to_use;
|
|
|
|
|
+ u32 chan = 0;
|
|
|
|
|
+
|
|
|
|
|
|
|
|
|
|
- /* If GMAC does not have multiple queues, then this is not necessary*/
|
|
|
|
|
- if (rx_count == 1)
|
|
|
|
|
- return;
|
|
|
|
|
+ for (chan = 0; chan < rx_channels_count; chan++)
|
|
|
|
|
+ stmmac_stop_rx_dma(priv, chan);
|
|
|
|
|
+
|
|
|
|
|
|
|
|
|
|
- /**
|
|
|
|
|
- * If the core is synthesized with multiple rx queues / multiple
|
|
|
|
|
- * dma channels, then rx queues will be disabled by default.
|
|
|
|
|
- * For now only rx queue 0 is enabled.
|
|
|
|
|
- */
|
|
|
|
|
- priv->hw->mac->rx_queue_enable(priv->hw, queue);
|
|
|
|
|
+ for (chan = 0; chan < tx_channels_count; chan++)
|
|
|
|
|
+ stmmac_stop_tx_dma(priv, chan);
|
|
|
|
|
}
|
|
|
|
|
|
Kevin Darbyshire-Bryant
7 years ago
committed by
Stijn Tintel