kernel: bump 4.9 to 4.9.58
authorStijn Tintel <stijn@linux-ipv6.be>
Sun, 22 Oct 2017 11:00:42 +0000 (14:00 +0300)
committerStijn Tintel <stijn@linux-ipv6.be>
Mon, 23 Oct 2017 14:23:34 +0000 (17:23 +0300)
Refresh patches.
Compile-tested: ar71xx, octeon, x86/64.
Runtime-tested: octeon, x86/64.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
include/kernel-version.mk
target/linux/brcm2708/patches-4.9/950-0100-staging-vchi-Convert-to-current-get_user_pages-argum.patch
target/linux/brcm2708/patches-4.9/950-0101-staging-vchi-Update-for-rename-of-page_cache_release.patch
target/linux/generic/backport-4.9/090-net-generalize-napi_complete_done.patch
target/linux/generic/hack-4.9/904-debloat_dma_buf.patch
target/linux/generic/pending-4.9/920-mangle_bootargs.patch
target/linux/ipq806x/patches-4.9/0067-generic-Mangle-bootloader-s-kernel-arguments.patch
target/linux/layerscape/patches-4.9/601-net-support-layerscape.patch
target/linux/sunxi/patches-4.9/0052-stmmac-form-4-12.patch

index 21e0c1f..2bddc87 100644 (file)
@@ -4,11 +4,11 @@ LINUX_RELEASE?=1
 
 LINUX_VERSION-3.18 = .71
 LINUX_VERSION-4.4 = .93
-LINUX_VERSION-4.9 = .57
+LINUX_VERSION-4.9 = .58
 
 LINUX_KERNEL_HASH-3.18.71 = 5abc9778ad44ce02ed6c8ab52ece8a21c6d20d21f6ed8a19287b4a38a50c1240
 LINUX_KERNEL_HASH-4.4.93 = ed349314f16e78a6571b5f8884f6452782aef6c26b81bcc7ccdac44ecd917c36
-LINUX_KERNEL_HASH-4.9.57 = 09230554ec6a34a12e2d2a6b32733aed3c9bc90b1662cc1b06dd67bf726c96a6
+LINUX_KERNEL_HASH-4.9.58 = 748f12a28689644b6a9102c67f8fa7938ca73823a949ba6f65024aecf2f221a7
 
 ifdef KERNEL_PATCHVER
   LINUX_VERSION:=$(KERNEL_PATCHVER)$(strip $(LINUX_VERSION-$(KERNEL_PATCHVER)))
index e80c414..e5038ab 100644 (file)
@@ -11,7 +11,7 @@ Signed-off-by: Eric Anholt <eric@anholt.net>
 
 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
 +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
-@@ -420,7 +420,7 @@ create_pagelist(char __user *buf, size_t
+@@ -426,7 +426,7 @@ create_pagelist(char __user *buf, size_t
                *need_release = 0; /* do not try and release vmalloc pages */
        } else {
                down_read(&task->mm->mmap_sem);
index 8979bc2..5cc5ff1 100644 (file)
@@ -12,7 +12,7 @@ Signed-off-by: Eric Anholt <eric@anholt.net>
 
 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
 +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
-@@ -438,7 +438,7 @@ create_pagelist(char __user *buf, size_t
+@@ -444,7 +444,7 @@ create_pagelist(char __user *buf, size_t
                        while (actual_pages > 0)
                        {
                                actual_pages--;
@@ -21,7 +21,7 @@ Signed-off-by: Eric Anholt <eric@anholt.net>
                        }
                        kfree(pagelist);
                        if (actual_pages == 0)
-@@ -579,7 +579,7 @@ free_pagelist(PAGELIST_T *pagelist, int
+@@ -585,7 +585,7 @@ free_pagelist(PAGELIST_T *pagelist, int
                                offset = 0;
                                set_page_dirty(pg);
                        }
index e1541e9..d7b7b48 100644 (file)
@@ -819,7 +819,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  
 --- a/drivers/net/ethernet/marvell/mvpp2.c
 +++ b/drivers/net/ethernet/marvell/mvpp2.c
-@@ -5405,7 +5405,7 @@ static int mvpp2_poll(struct napi_struct
+@@ -5404,7 +5404,7 @@ static int mvpp2_poll(struct napi_struct
  
        if (budget > 0) {
                cause_rx = 0;
index 4f432c3..b9a5c1d 100644 (file)
@@ -54,7 +54,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +MODULE_LICENSE("GPL");
 --- a/kernel/sched/core.c
 +++ b/kernel/sched/core.c
-@@ -2170,6 +2170,7 @@ int wake_up_state(struct task_struct *p,
+@@ -2171,6 +2171,7 @@ int wake_up_state(struct task_struct *p,
  {
        return try_to_wake_up(p, state, 0);
  }
index dc99680..a985a7c 100644 (file)
@@ -31,7 +31,7 @@ Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
        help
 --- a/init/main.c
 +++ b/init/main.c
-@@ -352,6 +352,29 @@ static inline void setup_nr_cpu_ids(void
+@@ -351,6 +351,29 @@ static inline void setup_nr_cpu_ids(void
  static inline void smp_prepare_cpus(unsigned int maxcpus) { }
  #endif
  
@@ -61,7 +61,7 @@ Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
  /*
   * We need to store the untouched command line for future reference.
   * We also need to store the touched command line since the parameter
-@@ -504,6 +527,7 @@ asmlinkage __visible void __init start_k
+@@ -503,6 +526,7 @@ asmlinkage __visible void __init start_k
        pr_notice("%s", linux_banner);
        setup_arch(&command_line);
        mm_init_cpumask(&init_mm);
index d34e08f..467ffbf 100644 (file)
@@ -157,7 +157,7 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com>
  }
 --- a/init/main.c
 +++ b/init/main.c
-@@ -88,6 +88,10 @@
+@@ -87,6 +87,10 @@
  #include <asm/sections.h>
  #include <asm/cacheflush.h>
  
@@ -168,7 +168,7 @@ Signed-off-by: Adrian Panella <ianchi74@outlook.com>
  static int kernel_init(void *);
  
  extern void init_IRQ(void);
-@@ -538,6 +542,18 @@ asmlinkage __visible void __init start_k
+@@ -537,6 +541,18 @@ asmlinkage __visible void __init start_k
        page_alloc_init();
  
        pr_notice("Kernel command line: %s\n", boot_command_line);
index 7f94776..9db40dc 100644 (file)
@@ -962,7 +962,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  /* Rx descriptors helper methods */
 --- a/drivers/net/ethernet/marvell/mvpp2.c
 +++ b/drivers/net/ethernet/marvell/mvpp2.c
-@@ -5762,7 +5762,7 @@ error:
+@@ -5761,7 +5761,7 @@ error:
        return err;
  }
  
@@ -971,7 +971,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  mvpp2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
  {
        struct mvpp2_port *port = netdev_priv(dev);
-@@ -5794,8 +5794,6 @@ mvpp2_get_stats64(struct net_device *dev
+@@ -5793,8 +5793,6 @@ mvpp2_get_stats64(struct net_device *dev
        stats->rx_errors        = dev->stats.rx_errors;
        stats->rx_dropped       = dev->stats.rx_dropped;
        stats->tx_dropped       = dev->stats.tx_dropped;
index a5cdec5..285e4d2 100644 (file)
 +
 +              /* Display RX ring */
 +              priv->hw->desc->display_ring(head_rx, DMA_RX_SIZE, true);
-+      }
+       }
 +}
 +
 +static void stmmac_display_tx_rings(struct stmmac_priv *priv)
 +                      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 */
  
        if (priv->hw->mode->set_16kib_bfsize)
                bfsize = priv->hw->mode->set_16kib_bfsize(dev->mtu);
-@@ -1018,257 +1228,516 @@ static int init_dma_desc_rings(struct ne
+@@ -1018,235 +1228,409 @@ static int init_dma_desc_rings(struct ne
  
        priv->dma_buf_sz = bfsize;
  
 +                              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)
 +                                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)
 +                              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)
 +                      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;
 +
 -                                               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
 +
 +              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
 + */
 +
 +/**
 + * 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,
 +                                                         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;
 +                                                         GFP_KERNEL);
 +                      if (!tx_q->dma_tx)
 +                              goto err_dma_buffers;
-               }
++              }
 +      }
 +
 +      return 0;
 +err_dma_buffers:
 +      free_dma_tx_desc_resources(priv);
 +
-+      return ret;
-+}
-+
+       return ret;
+ }
 +/**
 + * alloc_dma_desc_resources - alloc TX/RX resources.
 + * @priv: private structure
 + * 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)
-+{
+ }
+ /**
+@@ -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;
 +      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
 +      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
 +      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
 +{
 +      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
 + * 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;
 +
 +      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);
  }