diff options
Diffstat (limited to 'target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch')
| -rw-r--r-- | target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch | 344 |
1 files changed, 161 insertions, 183 deletions
diff --git a/target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch b/target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch index 1ed1294694..a1b018186f 100644 --- a/target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch +++ b/target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch @@ -3095,7 +3095,7 @@ if (priv->hw->mode->set_16kib_bfsize) bfsize = priv->hw->mode->set_16kib_bfsize(dev->mtu); -@@ -1033,257 +1234,516 @@ static int init_dma_desc_rings(struct ne +@@ -1033,235 +1234,409 @@ static int init_dma_desc_rings(struct ne priv->dma_buf_sz = bfsize; @@ -3351,10 +3351,17 @@ - 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 @@ -3383,10 +3390,11 @@ + + 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 + */ @@ -3419,36 +3427,90 @@ + +/** + * 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. -+ */ + * @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) +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); + 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; + 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, @@ -3469,12 +3531,19 @@ + GFP_KERNEL); + if (!rx_q->dma_rx) + goto err_dma; -+ } -+ } -+ -+ return 0; -+ -+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); + free_dma_rx_desc_resources(priv); + + return ret; @@ -3531,7 +3600,7 @@ + GFP_KERNEL); + if (!tx_q->dma_tx) + goto err_dma_buffers; - } ++ } + } + + return 0; @@ -3560,126 +3629,85 @@ + + ret = alloc_dma_tx_desc_resources(priv); + -+ return ret; -+} -+ + return ret; + } + +/** + * free_dma_desc_resources - free dma desc resources + * @priv: private structure + */ -+static void free_dma_desc_resources(struct stmmac_priv *priv) -+{ + 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); + /* Release the DMA RX socket buffers */ + free_dma_rx_desc_resources(priv); + + /* Release the DMA TX socket buffers */ + free_dma_tx_desc_resources(priv); -+} -+ -+/** -+ * 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) -+{ + } + + /** +@@ -1271,19 +1646,104 @@ 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; + u32 rx_queues_count = priv->plat->rx_queues_to_use; + int queue; + u8 mode; -- 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; -- } +- /* If GMAC does not have multiple queues, then this is not necessary*/ +- if (rx_count == 1) +- return; + 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); - } - } ++ } ++} - /** -- * 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. +- /** +- * 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); ++/** + * 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 @@ -3692,8 +3720,7 @@ + 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 @@ -3706,16 +3733,7 @@ + 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 @@ -3727,9 +3745,8 @@ +{ + 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 @@ -3737,31 +3754,7 @@ + * 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; @@ -3771,38 +3764,23 @@ + + 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); } |