[openwrt/staging/jow.git] /

From ba39b344e9240a4a5fd4ab8178200b85cd1809da Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
Date: Sat, 23 Jul 2022 16:29:32 +0200
Subject: [PATCH 4/5] net: ethernet: stmicro: stmmac: generate stmmac dma conf
 before open

Rework the driver to generate the stmmac dma_conf before stmmac_open.
This permits a function to first check if it's possible to allocate a
new dma_config and then pass it directly to __stmmac_open and "open" the
interface with the new configuration.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 .../net/ethernet/stmicro/stmmac/stmmac_main.c | 462 +++++++++++-------
 1 file changed, 289 insertions(+), 173 deletions(-)

--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1285,7 +1285,8 @@ static int stmmac_phy_setup(struct stmma
        return 0;
 }
 
-static void stmmac_display_rx_rings(struct stmmac_priv *priv)
+static void stmmac_display_rx_rings(struct stmmac_priv *priv,
+                                   struct stmmac_dma_conf *dma_conf)
 {
        u32 rx_cnt = priv->plat->rx_queues_to_use;
        unsigned int desc_size;
@@ -1294,7 +1295,7 @@ static void stmmac_display_rx_rings(stru
 
        /* Display RX rings */
        for (queue = 0; queue < rx_cnt; queue++) {
-               struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+               struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
 
                pr_info("\tRX Queue %u rings\n", queue);
 
@@ -1307,12 +1308,13 @@ static void stmmac_display_rx_rings(stru
                }
 
                /* Display RX ring */
-               stmmac_display_ring(priv, head_rx, priv->dma_conf.dma_rx_size, true,
+               stmmac_display_ring(priv, head_rx, dma_conf->dma_rx_size, true,
                                    rx_q->dma_rx_phy, desc_size);
        }
 }
 
-static void stmmac_display_tx_rings(struct stmmac_priv *priv)
+static void stmmac_display_tx_rings(struct stmmac_priv *priv,
+                                   struct stmmac_dma_conf *dma_conf)
 {
        u32 tx_cnt = priv->plat->tx_queues_to_use;
        unsigned int desc_size;
@@ -1321,7 +1323,7 @@ static void stmmac_display_tx_rings(stru
 
        /* Display TX rings */
        for (queue = 0; queue < tx_cnt; queue++) {
-               struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+               struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
 
                pr_info("\tTX Queue %d rings\n", queue);
 
@@ -1336,18 +1338,19 @@ static void stmmac_display_tx_rings(stru
                        desc_size = sizeof(struct dma_desc);
                }
 
-               stmmac_display_ring(priv, head_tx, priv->dma_conf.dma_tx_size, false,
+               stmmac_display_ring(priv, head_tx, dma_conf->dma_tx_size, false,
                                    tx_q->dma_tx_phy, desc_size);
        }
 }
 
-static void stmmac_display_rings(struct stmmac_priv *priv)
+static void stmmac_display_rings(struct stmmac_priv *priv,
+                                struct stmmac_dma_conf *dma_conf)
 {
        /* Display RX ring */
-       stmmac_display_rx_rings(priv);
+       stmmac_display_rx_rings(priv, dma_conf);
 
        /* Display TX ring */
-       stmmac_display_tx_rings(priv);
+       stmmac_display_tx_rings(priv, dma_conf);
 }
 
 static int stmmac_set_bfsize(int mtu, int bufsize)
@@ -1371,44 +1374,50 @@ static int stmmac_set_bfsize(int mtu, in
 /**
  * stmmac_clear_rx_descriptors - clear RX descriptors
  * @priv: driver private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  * Description: this function is called to clear the RX descriptors
  * in case of both basic and extended descriptors are used.
  */
-static void stmmac_clear_rx_descriptors(struct stmmac_priv *priv, u32 queue)
+static void stmmac_clear_rx_descriptors(struct stmmac_priv *priv,
+                                       struct stmmac_dma_conf *dma_conf,
+                                       u32 queue)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        int i;
 
        /* Clear the RX descriptors */
-       for (i = 0; i < priv->dma_conf.dma_rx_size; i++)
+       for (i = 0; i < dma_conf->dma_rx_size; i++)
                if (priv->extend_desc)
                        stmmac_init_rx_desc(priv, &rx_q->dma_erx[i].basic,
                                        priv->use_riwt, priv->mode,
-                                       (i == priv->dma_conf.dma_rx_size - 1),
-                                       priv->dma_conf.dma_buf_sz);
+                                       (i == dma_conf->dma_rx_size - 1),
+                                       dma_conf->dma_buf_sz);
                else
                        stmmac_init_rx_desc(priv, &rx_q->dma_rx[i],
                                        priv->use_riwt, priv->mode,
-                                       (i == priv->dma_conf.dma_rx_size - 1),
-                                       priv->dma_conf.dma_buf_sz);
+                                       (i == dma_conf->dma_rx_size - 1),
+                                       dma_conf->dma_buf_sz);
 }
 
 /**
  * stmmac_clear_tx_descriptors - clear tx descriptors
  * @priv: driver private structure
+ * @dma_conf: structure to take the dma data
  * @queue: TX queue index.
  * Description: this function is called to clear the TX descriptors
  * in case of both basic and extended descriptors are used.
  */
-static void stmmac_clear_tx_descriptors(struct stmmac_priv *priv, u32 queue)
+static void stmmac_clear_tx_descriptors(struct stmmac_priv *priv,
+                                       struct stmmac_dma_conf *dma_conf,
+                                       u32 queue)
 {
-       struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+       struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
        int i;
 
        /* Clear the TX descriptors */
-       for (i = 0; i < priv->dma_conf.dma_tx_size; i++) {
-               int last = (i == (priv->dma_conf.dma_tx_size - 1));
+       for (i = 0; i < dma_conf->dma_tx_size; i++) {
+               int last = (i == (dma_conf->dma_tx_size - 1));
                struct dma_desc *p;
 
                if (priv->extend_desc)
@@ -1425,10 +1434,12 @@ static void stmmac_clear_tx_descriptors(
 /**
  * stmmac_clear_descriptors - clear descriptors
  * @priv: driver private structure
+ * @dma_conf: structure to take the dma data
  * Description: this function is called to clear the TX and RX descriptors
  * in case of both basic and extended descriptors are used.
  */
-static void stmmac_clear_descriptors(struct stmmac_priv *priv)
+static void stmmac_clear_descriptors(struct stmmac_priv *priv,
+                                    struct stmmac_dma_conf *dma_conf)
 {
        u32 rx_queue_cnt = priv->plat->rx_queues_to_use;
        u32 tx_queue_cnt = priv->plat->tx_queues_to_use;
@@ -1436,16 +1447,17 @@ static void stmmac_clear_descriptors(str
 
        /* Clear the RX descriptors */
        for (queue = 0; queue < rx_queue_cnt; queue++)
-               stmmac_clear_rx_descriptors(priv, queue);
+               stmmac_clear_rx_descriptors(priv, dma_conf, queue);
 
        /* Clear the TX descriptors */
        for (queue = 0; queue < tx_queue_cnt; queue++)
-               stmmac_clear_tx_descriptors(priv, queue);
+               stmmac_clear_tx_descriptors(priv, dma_conf, queue);
 }
 
 /**
  * stmmac_init_rx_buffers - init the RX descriptor buffer.
  * @priv: driver private structure
+ * @dma_conf: structure to take the dma data
  * @p: descriptor pointer
  * @i: descriptor index
  * @flags: gfp flag
@@ -1453,10 +1465,12 @@ static void stmmac_clear_descriptors(str
  * Description: this function is called to allocate a receive buffer, perform
  * the DMA mapping and init the descriptor.
  */
-static int stmmac_init_rx_buffers(struct stmmac_priv *priv, struct dma_desc *p,
+static int stmmac_init_rx_buffers(struct stmmac_priv *priv,
+                                 struct stmmac_dma_conf *dma_conf,
+                                 struct dma_desc *p,
                                  int i, gfp_t flags, u32 queue)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        struct stmmac_rx_buffer *buf = &rx_q->buf_pool[i];
 
        if (!buf->page) {
@@ -1481,7 +1495,7 @@ static int stmmac_init_rx_buffers(struct
        buf->addr = page_pool_get_dma_addr(buf->page) + buf->page_offset;
 
        stmmac_set_desc_addr(priv, p, buf->addr);
-       if (priv->dma_conf.dma_buf_sz == BUF_SIZE_16KiB)
+       if (dma_conf->dma_buf_sz == BUF_SIZE_16KiB)
                stmmac_init_desc3(priv, p);
 
        return 0;
@@ -1490,12 +1504,13 @@ static int stmmac_init_rx_buffers(struct
 /**
  * stmmac_free_rx_buffer - free RX dma buffers
  * @priv: private structure
- * @queue: RX queue index
+ * @rx_q: RX queue
  * @i: buffer index.
  */
-static void stmmac_free_rx_buffer(struct stmmac_priv *priv, u32 queue, int i)
+static void stmmac_free_rx_buffer(struct stmmac_priv *priv,
+                                 struct stmmac_rx_queue *rx_q,
+                                 int i)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
        struct stmmac_rx_buffer *buf = &rx_q->buf_pool[i];
 
        if (buf->page)
@@ -1510,12 +1525,15 @@ static void stmmac_free_rx_buffer(struct
 /**
  * stmmac_free_tx_buffer - free RX dma buffers
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  * @i: buffer index.
  */
-static void stmmac_free_tx_buffer(struct stmmac_priv *priv, u32 queue, int i)
+static void stmmac_free_tx_buffer(struct stmmac_priv *priv,
+                                 struct stmmac_dma_conf *dma_conf,
+                                 u32 queue, int i)
 {
-       struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+       struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
 
        if (tx_q->tx_skbuff_dma[i].buf &&
            tx_q->tx_skbuff_dma[i].buf_type != STMMAC_TXBUF_T_XDP_TX) {
@@ -1554,23 +1572,28 @@ static void stmmac_free_tx_buffer(struct
 /**
  * dma_free_rx_skbufs - free RX dma buffers
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  */
-static void dma_free_rx_skbufs(struct stmmac_priv *priv, u32 queue)
+static void dma_free_rx_skbufs(struct stmmac_priv *priv,
+                              struct stmmac_dma_conf *dma_conf,
+                              u32 queue)
 {
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        int i;
 
-       for (i = 0; i < priv->dma_conf.dma_rx_size; i++)
-               stmmac_free_rx_buffer(priv, queue, i);
+       for (i = 0; i < dma_conf->dma_rx_size; i++)
+               stmmac_free_rx_buffer(priv, rx_q, i);
 }
 
-static int stmmac_alloc_rx_buffers(struct stmmac_priv *priv, u32 queue,
-                                  gfp_t flags)
+static int stmmac_alloc_rx_buffers(struct stmmac_priv *priv,
+                                  struct stmmac_dma_conf *dma_conf,
+                                  u32 queue, gfp_t flags)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        int i;
 
-       for (i = 0; i < priv->dma_conf.dma_rx_size; i++) {
+       for (i = 0; i < dma_conf->dma_rx_size; i++) {
                struct dma_desc *p;
                int ret;
 
@@ -1579,7 +1602,7 @@ static int stmmac_alloc_rx_buffers(struc
                else
                        p = rx_q->dma_rx + i;
 
-               ret = stmmac_init_rx_buffers(priv, p, i, flags,
+               ret = stmmac_init_rx_buffers(priv, dma_conf, p, i, flags,
                                             queue);
                if (ret)
                        return ret;
@@ -1593,14 +1616,17 @@ static int stmmac_alloc_rx_buffers(struc
 /**
  * dma_free_rx_xskbufs - free RX dma buffers from XSK pool
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  */
-static void dma_free_rx_xskbufs(struct stmmac_priv *priv, u32 queue)
+static void dma_free_rx_xskbufs(struct stmmac_priv *priv,
+                               struct stmmac_dma_conf *dma_conf,
+                               u32 queue)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        int i;
 
-       for (i = 0; i < priv->dma_conf.dma_rx_size; i++) {
+       for (i = 0; i < dma_conf->dma_rx_size; i++) {
                struct stmmac_rx_buffer *buf = &rx_q->buf_pool[i];
 
                if (!buf->xdp)
@@ -1611,12 +1637,14 @@ static void dma_free_rx_xskbufs(struct s
        }
 }
 
-static int stmmac_alloc_rx_buffers_zc(struct stmmac_priv *priv, u32 queue)
+static int stmmac_alloc_rx_buffers_zc(struct stmmac_priv *priv,
+                                     struct stmmac_dma_conf *dma_conf,
+                                     u32 queue)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        int i;
 
-       for (i = 0; i < priv->dma_conf.dma_rx_size; i++) {
+       for (i = 0; i < dma_conf->dma_rx_size; i++) {
                struct stmmac_rx_buffer *buf;
                dma_addr_t dma_addr;
                struct dma_desc *p;
@@ -1651,22 +1679,25 @@ static struct xsk_buff_pool *stmmac_get_
 /**
  * __init_dma_rx_desc_rings - init the RX descriptor ring (per queue)
  * @priv: driver private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  * @flags: gfp flag.
  * Description: this function initializes the DMA RX descriptors
  * and allocates the socket buffers. It supports the chained and ring
  * modes.
  */
-static int __init_dma_rx_desc_rings(struct stmmac_priv *priv, u32 queue, gfp_t flags)
+static int __init_dma_rx_desc_rings(struct stmmac_priv *priv,
+                                   struct stmmac_dma_conf *dma_conf,
+                                   u32 queue, gfp_t flags)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        int ret;
 
        netif_dbg(priv, probe, priv->dev,
                  "(%s) dma_rx_phy=0x%08x\n", __func__,
                  (u32)rx_q->dma_rx_phy);
 
-       stmmac_clear_rx_descriptors(priv, queue);
+       stmmac_clear_rx_descriptors(priv, dma_conf, queue);
 
        xdp_rxq_info_unreg_mem_model(&rx_q->xdp_rxq);
 
@@ -1693,9 +1724,9 @@ static int __init_dma_rx_desc_rings(stru
                /* RX XDP ZC buffer pool may not be populated, e.g.
                 * xdpsock TX-only.
                 */
-               stmmac_alloc_rx_buffers_zc(priv, queue);
+               stmmac_alloc_rx_buffers_zc(priv, dma_conf, queue);
        } else {
-               ret = stmmac_alloc_rx_buffers(priv, queue, flags);
+               ret = stmmac_alloc_rx_buffers(priv, dma_conf, queue, flags);
                if (ret < 0)
                        return -ENOMEM;
        }
@@ -1705,17 +1736,19 @@ static int __init_dma_rx_desc_rings(stru
                if (priv->extend_desc)
                        stmmac_mode_init(priv, rx_q->dma_erx,
                                         rx_q->dma_rx_phy,
-                                        priv->dma_conf.dma_rx_size, 1);
+                                        dma_conf->dma_rx_size, 1);
                else
                        stmmac_mode_init(priv, rx_q->dma_rx,
                                         rx_q->dma_rx_phy,
-                                        priv->dma_conf.dma_rx_size, 0);
+                                        dma_conf->dma_rx_size, 0);
        }
 
        return 0;
 }
 
-static int init_dma_rx_desc_rings(struct net_device *dev, gfp_t flags)
+static int init_dma_rx_desc_rings(struct net_device *dev,
+                                 struct stmmac_dma_conf *dma_conf,
+                                 gfp_t flags)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
        u32 rx_count = priv->plat->rx_queues_to_use;
@@ -1727,7 +1760,7 @@ static int init_dma_rx_desc_rings(struct
                  "SKB addresses:\nskb\t\tskb data\tdma data\n");
 
        for (queue = 0; queue < rx_count; queue++) {
-               ret = __init_dma_rx_desc_rings(priv, queue, flags);
+               ret = __init_dma_rx_desc_rings(priv, dma_conf, queue, flags);
                if (ret)
                        goto err_init_rx_buffers;
        }
@@ -1736,12 +1769,12 @@ static int init_dma_rx_desc_rings(struct
 
 err_init_rx_buffers:
        while (queue >= 0) {
-               struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+               struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
 
                if (rx_q->xsk_pool)
-                       dma_free_rx_xskbufs(priv, queue);
+                       dma_free_rx_xskbufs(priv, dma_conf, queue);
                else
-                       dma_free_rx_skbufs(priv, queue);
+                       dma_free_rx_skbufs(priv, dma_conf, queue);
 
                rx_q->buf_alloc_num = 0;
                rx_q->xsk_pool = NULL;
@@ -1758,14 +1791,17 @@ err_init_rx_buffers:
 /**
  * __init_dma_tx_desc_rings - init the TX descriptor ring (per queue)
  * @priv: driver private structure
- * @queue : TX queue index
+ * @dma_conf: structure to take the dma data
+ * @queue: TX queue index
  * Description: this function initializes the DMA TX descriptors
  * and allocates the socket buffers. It supports the chained and ring
  * modes.
  */
-static int __init_dma_tx_desc_rings(struct stmmac_priv *priv, u32 queue)
+static int __init_dma_tx_desc_rings(struct stmmac_priv *priv,
+                                   struct stmmac_dma_conf *dma_conf,
+                                   u32 queue)
 {
-       struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+       struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
        int i;
 
        netif_dbg(priv, probe, priv->dev,
@@ -1777,16 +1813,16 @@ static int __init_dma_tx_desc_rings(stru
                if (priv->extend_desc)
                        stmmac_mode_init(priv, tx_q->dma_etx,
                                         tx_q->dma_tx_phy,
-                                        priv->dma_conf.dma_tx_size, 1);
+                                        dma_conf->dma_tx_size, 1);
                else if (!(tx_q->tbs & STMMAC_TBS_AVAIL))
                        stmmac_mode_init(priv, tx_q->dma_tx,
                                         tx_q->dma_tx_phy,
-                                        priv->dma_conf.dma_tx_size, 0);
+                                        dma_conf->dma_tx_size, 0);
        }
 
        tx_q->xsk_pool = stmmac_get_xsk_pool(priv, queue);
 
-       for (i = 0; i < priv->dma_conf.dma_tx_size; i++) {
+       for (i = 0; i < dma_conf->dma_tx_size; i++) {
                struct dma_desc *p;
 
                if (priv->extend_desc)
@@ -1808,7 +1844,8 @@ static int __init_dma_tx_desc_rings(stru
        return 0;
 }
 
-static int init_dma_tx_desc_rings(struct net_device *dev)
+static int init_dma_tx_desc_rings(struct net_device *dev,
+                                 struct stmmac_dma_conf *dma_conf)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
        u32 tx_queue_cnt;
@@ -1817,7 +1854,7 @@ static int init_dma_tx_desc_rings(struct
        tx_queue_cnt = priv->plat->tx_queues_to_use;
 
        for (queue = 0; queue < tx_queue_cnt; queue++)
-               __init_dma_tx_desc_rings(priv, queue);
+               __init_dma_tx_desc_rings(priv, dma_conf, queue);
 
        return 0;
 }
@@ -1825,26 +1862,29 @@ static int init_dma_tx_desc_rings(struct
 /**
  * init_dma_desc_rings - init the RX/TX descriptor rings
  * @dev: net device structure
+ * @dma_conf: structure to take the dma data
  * @flags: gfp flag.
  * Description: this function initializes the DMA RX/TX descriptors
  * and allocates the socket buffers. It supports the chained and ring
  * modes.
  */
-static int init_dma_desc_rings(struct net_device *dev, gfp_t flags)
+static int init_dma_desc_rings(struct net_device *dev,
+                              struct stmmac_dma_conf *dma_conf,
+                              gfp_t flags)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
        int ret;
 
-       ret = init_dma_rx_desc_rings(dev, flags);
+       ret = init_dma_rx_desc_rings(dev, dma_conf, flags);
        if (ret)
                return ret;
 
-       ret = init_dma_tx_desc_rings(dev);
+       ret = init_dma_tx_desc_rings(dev, dma_conf);
 
-       stmmac_clear_descriptors(priv);
+       stmmac_clear_descriptors(priv, dma_conf);
 
        if (netif_msg_hw(priv))
-               stmmac_display_rings(priv);
+               stmmac_display_rings(priv, dma_conf);
 
        return ret;
 }
@@ -1852,17 +1892,20 @@ static int init_dma_desc_rings(struct ne
 /**
  * dma_free_tx_skbufs - free TX dma buffers
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: TX queue index
  */
-static void dma_free_tx_skbufs(struct stmmac_priv *priv, u32 queue)
+static void dma_free_tx_skbufs(struct stmmac_priv *priv,
+                              struct stmmac_dma_conf *dma_conf,
+                              u32 queue)
 {
-       struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+       struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
        int i;
 
        tx_q->xsk_frames_done = 0;
 
-       for (i = 0; i < priv->dma_conf.dma_tx_size; i++)
-               stmmac_free_tx_buffer(priv, queue, i);
+       for (i = 0; i < dma_conf->dma_tx_size; i++)
+               stmmac_free_tx_buffer(priv, dma_conf, queue, i);
 
        if (tx_q->xsk_pool && tx_q->xsk_frames_done) {
                xsk_tx_completed(tx_q->xsk_pool, tx_q->xsk_frames_done);
@@ -1881,34 +1924,37 @@ static void stmmac_free_tx_skbufs(struct
        u32 queue;
 
        for (queue = 0; queue < tx_queue_cnt; queue++)
-               dma_free_tx_skbufs(priv, queue);
+               dma_free_tx_skbufs(priv, &priv->dma_conf, queue);
 }
 
 /**
  * __free_dma_rx_desc_resources - free RX dma desc resources (per queue)
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  */
-static void __free_dma_rx_desc_resources(struct stmmac_priv *priv, u32 queue)
+static void __free_dma_rx_desc_resources(struct stmmac_priv *priv,
+                                        struct stmmac_dma_conf *dma_conf,
+                                        u32 queue)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
 
        /* Release the DMA RX socket buffers */
        if (rx_q->xsk_pool)
-               dma_free_rx_xskbufs(priv, queue);
+               dma_free_rx_xskbufs(priv, dma_conf, queue);
        else
-               dma_free_rx_skbufs(priv, queue);
+               dma_free_rx_skbufs(priv, dma_conf, queue);
 
        rx_q->buf_alloc_num = 0;
        rx_q->xsk_pool = NULL;
 
        /* Free DMA regions of consistent memory previously allocated */
        if (!priv->extend_desc)
-               dma_free_coherent(priv->device, priv->dma_conf.dma_rx_size *
+               dma_free_coherent(priv->device, dma_conf->dma_rx_size *
                                  sizeof(struct dma_desc),
                                  rx_q->dma_rx, rx_q->dma_rx_phy);
        else
-               dma_free_coherent(priv->device, priv->dma_conf.dma_rx_size *
+               dma_free_coherent(priv->device, dma_conf->dma_rx_size *
                                  sizeof(struct dma_extended_desc),
                                  rx_q->dma_erx, rx_q->dma_rx_phy);
 
@@ -1920,29 +1966,33 @@ static void __free_dma_rx_desc_resources
                page_pool_destroy(rx_q->page_pool);
 }
 
-static void free_dma_rx_desc_resources(struct stmmac_priv *priv)
+static void free_dma_rx_desc_resources(struct stmmac_priv *priv,
+                                      struct stmmac_dma_conf *dma_conf)
 {
        u32 rx_count = priv->plat->rx_queues_to_use;
        u32 queue;
 
        /* Free RX queue resources */
        for (queue = 0; queue < rx_count; queue++)
-               __free_dma_rx_desc_resources(priv, queue);
+               __free_dma_rx_desc_resources(priv, dma_conf, queue);
 }
 
 /**
  * __free_dma_tx_desc_resources - free TX dma desc resources (per queue)
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: TX queue index
  */
-static void __free_dma_tx_desc_resources(struct stmmac_priv *priv, u32 queue)
+static void __free_dma_tx_desc_resources(struct stmmac_priv *priv,
+                                        struct stmmac_dma_conf *dma_conf,
+                                        u32 queue)
 {
-       struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+       struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
        size_t size;
        void *addr;
 
        /* Release the DMA TX socket buffers */
-       dma_free_tx_skbufs(priv, queue);
+       dma_free_tx_skbufs(priv, dma_conf, queue);
 
        if (priv->extend_desc) {
                size = sizeof(struct dma_extended_desc);
@@ -1955,7 +2005,7 @@ static void __free_dma_tx_desc_resources
                addr = tx_q->dma_tx;
        }
 
-       size *= priv->dma_conf.dma_tx_size;
+       size *= dma_conf->dma_tx_size;
 
        dma_free_coherent(priv->device, size, addr, tx_q->dma_tx_phy);
 
@@ -1963,28 +2013,32 @@ static void __free_dma_tx_desc_resources
        kfree(tx_q->tx_skbuff);
 }
 
-static void free_dma_tx_desc_resources(struct stmmac_priv *priv)
+static void free_dma_tx_desc_resources(struct stmmac_priv *priv,
+                                      struct stmmac_dma_conf *dma_conf)
 {
        u32 tx_count = priv->plat->tx_queues_to_use;
        u32 queue;
 
        /* Free TX queue resources */
        for (queue = 0; queue < tx_count; queue++)
-               __free_dma_tx_desc_resources(priv, queue);
+               __free_dma_tx_desc_resources(priv, dma_conf, queue);
 }
 
 /**
  * __alloc_dma_rx_desc_resources - alloc RX resources (per queue).
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: RX queue index
  * 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 queue)
+static int __alloc_dma_rx_desc_resources(struct stmmac_priv *priv,
+                                        struct stmmac_dma_conf *dma_conf,
+                                        u32 queue)
 {
-       struct stmmac_rx_queue *rx_q = &priv->dma_conf.rx_queue[queue];
+       struct stmmac_rx_queue *rx_q = &dma_conf->rx_queue[queue];
        struct stmmac_channel *ch = &priv->channel[queue];
        bool xdp_prog = stmmac_xdp_is_enabled(priv);
        struct page_pool_params pp_params = { 0 };
@@ -1996,8 +2050,8 @@ static int __alloc_dma_rx_desc_resources
        rx_q->priv_data = priv;
 
        pp_params.flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV;
-       pp_params.pool_size = priv->dma_conf.dma_rx_size;
-       num_pages = DIV_ROUND_UP(priv->dma_conf.dma_buf_sz, PAGE_SIZE);
+       pp_params.pool_size = dma_conf->dma_rx_size;
+       num_pages = DIV_ROUND_UP(dma_conf->dma_buf_sz, PAGE_SIZE);
        pp_params.order = ilog2(num_pages);
        pp_params.nid = dev_to_node(priv->device);
        pp_params.dev = priv->device;
@@ -2012,7 +2066,7 @@ static int __alloc_dma_rx_desc_resources
                return ret;
        }
 
-       rx_q->buf_pool = kcalloc(priv->dma_conf.dma_rx_size,
+       rx_q->buf_pool = kcalloc(dma_conf->dma_rx_size,
                                 sizeof(*rx_q->buf_pool),
                                 GFP_KERNEL);
        if (!rx_q->buf_pool)
@@ -2020,7 +2074,7 @@ static int __alloc_dma_rx_desc_resources
 
        if (priv->extend_desc) {
                rx_q->dma_erx = dma_alloc_coherent(priv->device,
-                                                  priv->dma_conf.dma_rx_size *
+                                                  dma_conf->dma_rx_size *
                                                   sizeof(struct dma_extended_desc),
                                                   &rx_q->dma_rx_phy,
                                                   GFP_KERNEL);
@@ -2029,7 +2083,7 @@ static int __alloc_dma_rx_desc_resources
 
        } else {
                rx_q->dma_rx = dma_alloc_coherent(priv->device,
-                                                 priv->dma_conf.dma_rx_size *
+                                                 dma_conf->dma_rx_size *
                                                  sizeof(struct dma_desc),
                                                  &rx_q->dma_rx_phy,
                                                  GFP_KERNEL);
@@ -2054,7 +2108,8 @@ static int __alloc_dma_rx_desc_resources
        return 0;
 }
 
-static int alloc_dma_rx_desc_resources(struct stmmac_priv *priv)
+static int alloc_dma_rx_desc_resources(struct stmmac_priv *priv,
+                                      struct stmmac_dma_conf *dma_conf)
 {
        u32 rx_count = priv->plat->rx_queues_to_use;
        u32 queue;
@@ -2062,7 +2117,7 @@ static int alloc_dma_rx_desc_resources(s
 
        /* RX queues buffers and DMA */
        for (queue = 0; queue < rx_count; queue++) {
-               ret = __alloc_dma_rx_desc_resources(priv, queue);
+               ret = __alloc_dma_rx_desc_resources(priv, dma_conf, queue);
                if (ret)
                        goto err_dma;
        }
@@ -2070,7 +2125,7 @@ static int alloc_dma_rx_desc_resources(s
        return 0;
 
 err_dma:
-       free_dma_rx_desc_resources(priv);
+       free_dma_rx_desc_resources(priv, dma_conf);
 
        return ret;
 }
@@ -2078,28 +2133,31 @@ err_dma:
 /**
  * __alloc_dma_tx_desc_resources - alloc TX resources (per queue).
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * @queue: TX queue index
  * 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_tx_desc_resources(struct stmmac_priv *priv, u32 queue)
+static int __alloc_dma_tx_desc_resources(struct stmmac_priv *priv,
+                                        struct stmmac_dma_conf *dma_conf,
+                                        u32 queue)
 {
-       struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[queue];
+       struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[queue];
        size_t size;
        void *addr;
 
        tx_q->queue_index = queue;
        tx_q->priv_data = priv;
 
-       tx_q->tx_skbuff_dma = kcalloc(priv->dma_conf.dma_tx_size,
+       tx_q->tx_skbuff_dma = kcalloc(dma_conf->dma_tx_size,
                                      sizeof(*tx_q->tx_skbuff_dma),
                                      GFP_KERNEL);
        if (!tx_q->tx_skbuff_dma)
                return -ENOMEM;
 
-       tx_q->tx_skbuff = kcalloc(priv->dma_conf.dma_tx_size,
+       tx_q->tx_skbuff = kcalloc(dma_conf->dma_tx_size,
                                  sizeof(struct sk_buff *),
                                  GFP_KERNEL);
        if (!tx_q->tx_skbuff)
@@ -2112,7 +2170,7 @@ static int __alloc_dma_tx_desc_resources
        else
                size = sizeof(struct dma_desc);
 
-       size *= priv->dma_conf.dma_tx_size;
+       size *= dma_conf->dma_tx_size;
 
        addr = dma_alloc_coherent(priv->device, size,
                                  &tx_q->dma_tx_phy, GFP_KERNEL);
@@ -2129,7 +2187,8 @@ static int __alloc_dma_tx_desc_resources
        return 0;
 }
 
-static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv)
+static int alloc_dma_tx_desc_resources(struct stmmac_priv *priv,
+                                      struct stmmac_dma_conf *dma_conf)
 {
        u32 tx_count = priv->plat->tx_queues_to_use;
        u32 queue;
@@ -2137,7 +2196,7 @@ static int alloc_dma_tx_desc_resources(s
 
        /* TX queues buffers and DMA */
        for (queue = 0; queue < tx_count; queue++) {
-               ret = __alloc_dma_tx_desc_resources(priv, queue);
+               ret = __alloc_dma_tx_desc_resources(priv, dma_conf, queue);
                if (ret)
                        goto err_dma;
        }
@@ -2145,27 +2204,29 @@ static int alloc_dma_tx_desc_resources(s
        return 0;
 
 err_dma:
-       free_dma_tx_desc_resources(priv);
+       free_dma_tx_desc_resources(priv, dma_conf);
        return ret;
 }
 
 /**
  * alloc_dma_desc_resources - alloc TX/RX resources.
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  * 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_desc_resources(struct stmmac_priv *priv,
+                                   struct stmmac_dma_conf *dma_conf)
 {
        /* RX Allocation */
-       int ret = alloc_dma_rx_desc_resources(priv);
+       int ret = alloc_dma_rx_desc_resources(priv, dma_conf);
 
        if (ret)
                return ret;
 
-       ret = alloc_dma_tx_desc_resources(priv);
+       ret = alloc_dma_tx_desc_resources(priv, dma_conf);
 
        return ret;
 }
@@ -2173,16 +2234,18 @@ static int alloc_dma_desc_resources(stru
 /**
  * free_dma_desc_resources - free dma desc resources
  * @priv: private structure
+ * @dma_conf: structure to take the dma data
  */
-static void free_dma_desc_resources(struct stmmac_priv *priv)
+static void free_dma_desc_resources(struct stmmac_priv *priv,
+                                   struct stmmac_dma_conf *dma_conf)
 {
        /* Release the DMA TX socket buffers */
-       free_dma_tx_desc_resources(priv);
+       free_dma_tx_desc_resources(priv, dma_conf);
 
        /* Release the DMA RX socket buffers later
         * to ensure all pending XDP_TX buffers are returned.
         */
-       free_dma_rx_desc_resources(priv);
+       free_dma_rx_desc_resources(priv, dma_conf);
 }
 
 /**
@@ -2671,8 +2734,8 @@ static void stmmac_tx_err(struct stmmac_
        netif_tx_stop_queue(netdev_get_tx_queue(priv->dev, chan));
 
        stmmac_stop_tx_dma(priv, chan);
-       dma_free_tx_skbufs(priv, chan);
-       stmmac_clear_tx_descriptors(priv, chan);
+       dma_free_tx_skbufs(priv, &priv->dma_conf, chan);
+       stmmac_clear_tx_descriptors(priv, &priv->dma_conf, chan);
        stmmac_reset_tx_queue(priv, chan);
        stmmac_init_tx_chan(priv, priv->ioaddr, priv->plat->dma_cfg,
                            tx_q->dma_tx_phy, chan);
@@ -3669,19 +3732,93 @@ static int stmmac_request_irq(struct net
 }
 
 /**
- *  stmmac_open - open entry point of the driver
+ *  stmmac_setup_dma_desc - Generate a dma_conf and allocate DMA queue
+ *  @priv: driver private structure
+ *  @mtu: MTU to setup the dma queue and buf with
+ *  Description: Allocate and generate a dma_conf based on the provided MTU.
+ *  Allocate the Tx/Rx DMA queue and init them.
+ *  Return value:
+ *  the dma_conf allocated struct on success and an appropriate ERR_PTR on failure.
+ */
+static struct stmmac_dma_conf *
+stmmac_setup_dma_desc(struct stmmac_priv *priv, unsigned int mtu)
+{
+       struct stmmac_dma_conf *dma_conf;
+       int chan, bfsize, ret;
+
+       dma_conf = kzalloc(sizeof(*dma_conf), GFP_KERNEL);
+       if (!dma_conf) {
+               netdev_err(priv->dev, "%s: DMA conf allocation failed\n",
+                          __func__);
+               return ERR_PTR(-ENOMEM);
+       }
+
+       bfsize = stmmac_set_16kib_bfsize(priv, mtu);
+       if (bfsize < 0)
+               bfsize = 0;
+
+       if (bfsize < BUF_SIZE_16KiB)
+               bfsize = stmmac_set_bfsize(mtu, 0);
+
+       dma_conf->dma_buf_sz = bfsize;
+       /* Chose the tx/rx size from the already defined one in the
+        * priv struct. (if defined)
+        */
+       dma_conf->dma_tx_size = priv->dma_conf.dma_tx_size;
+       dma_conf->dma_rx_size = priv->dma_conf.dma_rx_size;
+
+       if (!dma_conf->dma_tx_size)
+               dma_conf->dma_tx_size = DMA_DEFAULT_TX_SIZE;
+       if (!dma_conf->dma_rx_size)
+               dma_conf->dma_rx_size = DMA_DEFAULT_RX_SIZE;
+
+       /* Earlier check for TBS */
+       for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) {
+               struct stmmac_tx_queue *tx_q = &dma_conf->tx_queue[chan];
+               int tbs_en = priv->plat->tx_queues_cfg[chan].tbs_en;
+
+               /* Setup per-TXQ tbs flag before TX descriptor alloc */
+               tx_q->tbs |= tbs_en ? STMMAC_TBS_AVAIL : 0;
+       }
+
+       ret = alloc_dma_desc_resources(priv, dma_conf);
+       if (ret < 0) {
+               netdev_err(priv->dev, "%s: DMA descriptors allocation failed\n",
+                          __func__);
+               goto alloc_error;
+       }
+
+       ret = init_dma_desc_rings(priv->dev, dma_conf, GFP_KERNEL);
+       if (ret < 0) {
+               netdev_err(priv->dev, "%s: DMA descriptors initialization failed\n",
+                          __func__);
+               goto init_error;
+       }
+
+       return dma_conf;
+
+init_error:
+       free_dma_desc_resources(priv, dma_conf);
+alloc_error:
+       kfree(dma_conf);
+       return ERR_PTR(ret);
+}
+
+/**
+ *  __stmmac_open - open entry point of the driver
  *  @dev : pointer to the device structure.
+ *  @dma_conf :  structure to take the dma data
  *  Description:
  *  This function is the open entry point of the driver.
  *  Return value:
  *  0 on success and an appropriate (-)ve integer as defined in errno.h
  *  file on failure.
  */
-static int stmmac_open(struct net_device *dev)
+static int __stmmac_open(struct net_device *dev,
+                        struct stmmac_dma_conf *dma_conf)
 {
        struct stmmac_priv *priv = netdev_priv(dev);
        int mode = priv->plat->phy_interface;
-       int bfsize = 0;
        u32 chan;
        int ret;
 
@@ -3708,45 +3845,10 @@ static int stmmac_open(struct net_device
        memset(&priv->xstats, 0, sizeof(struct stmmac_extra_stats));
        priv->xstats.threshold = tc;
 
-       bfsize = stmmac_set_16kib_bfsize(priv, dev->mtu);
-       if (bfsize < 0)
-               bfsize = 0;
-
-       if (bfsize < BUF_SIZE_16KiB)
-               bfsize = stmmac_set_bfsize(dev->mtu, priv->dma_conf.dma_buf_sz);
-
-       priv->dma_conf.dma_buf_sz = bfsize;
-       buf_sz = bfsize;
-
        priv->rx_copybreak = STMMAC_RX_COPYBREAK;
 
-       if (!priv->dma_conf.dma_tx_size)
-               priv->dma_conf.dma_tx_size = DMA_DEFAULT_TX_SIZE;
-       if (!priv->dma_conf.dma_rx_size)
-               priv->dma_conf.dma_rx_size = DMA_DEFAULT_RX_SIZE;
-
-       /* Earlier check for TBS */
-       for (chan = 0; chan < priv->plat->tx_queues_to_use; chan++) {
-               struct stmmac_tx_queue *tx_q = &priv->dma_conf.tx_queue[chan];
-               int tbs_en = priv->plat->tx_queues_cfg[chan].tbs_en;
-
-               /* Setup per-TXQ tbs flag before TX descriptor alloc */
-               tx_q->tbs |= tbs_en ? STMMAC_TBS_AVAIL : 0;
-       }
-
-       ret = alloc_dma_desc_resources(priv);
-       if (ret < 0) {
-               netdev_err(priv->dev, "%s: DMA descriptors allocation failed\n",
-                          __func__);
-               goto dma_desc_error;
-       }
-
-       ret = init_dma_desc_rings(dev, GFP_KERNEL);
-       if (ret < 0) {
-               netdev_err(priv->dev, "%s: DMA descriptors initialization failed\n",
-                          __func__);
-               goto init_error;
-       }
+       buf_sz = dma_conf->dma_buf_sz;
+       memcpy(&priv->dma_conf, dma_conf, sizeof(*dma_conf));
 
        stmmac_reset_queues_param(priv);
 
@@ -3780,14 +3882,28 @@ irq_error:
 
        stmmac_hw_teardown(dev);
 init_error:
-       free_dma_desc_resources(priv);
-dma_desc_error:
+       free_dma_desc_resources(priv, &priv->dma_conf);
        phylink_disconnect_phy(priv->phylink);
 init_phy_error:
        pm_runtime_put(priv->device);
        return ret;
 }
 
+static int stmmac_open(struct net_device *dev)
+{
+       struct stmmac_priv *priv = netdev_priv(dev);
+       struct stmmac_dma_conf *dma_conf;
+       int ret;
+
+       dma_conf = stmmac_setup_dma_desc(priv, dev->mtu);
+       if (IS_ERR(dma_conf))
+               return PTR_ERR(dma_conf);
+
+       ret = __stmmac_open(dev, dma_conf);
+       kfree(dma_conf);
+       return ret;
+}
+
 static void stmmac_fpe_stop_wq(struct stmmac_priv *priv)
 {
        set_bit(__FPE_REMOVING, &priv->fpe_task_state);
@@ -3834,7 +3950,7 @@ static int stmmac_release(struct net_dev
        stmmac_stop_all_dma(priv);
 
        /* Release and free the Rx/Tx resources */
-       free_dma_desc_resources(priv);
+       free_dma_desc_resources(priv, &priv->dma_conf);
 
        /* Disable the MAC Rx/Tx */
        stmmac_mac_set(priv, priv->ioaddr, false);
@@ -6369,7 +6485,7 @@ void stmmac_disable_rx_queue(struct stmm
        spin_unlock_irqrestore(&ch->lock, flags);
 
        stmmac_stop_rx_dma(priv, queue);
-       __free_dma_rx_desc_resources(priv, queue);
+       __free_dma_rx_desc_resources(priv, &priv->dma_conf, queue);
 }
 
 void stmmac_enable_rx_queue(struct stmmac_priv *priv, u32 queue)
@@ -6380,21 +6496,21 @@ void stmmac_enable_rx_queue(struct stmma
        u32 buf_size;
        int ret;
 
-       ret = __alloc_dma_rx_desc_resources(priv, queue);
+       ret = __alloc_dma_rx_desc_resources(priv, &priv->dma_conf, queue);
        if (ret) {
                netdev_err(priv->dev, "Failed to alloc RX desc.\n");
                return;
        }
 
-       ret = __init_dma_rx_desc_rings(priv, queue, GFP_KERNEL);
+       ret = __init_dma_rx_desc_rings(priv, &priv->dma_conf, queue, GFP_KERNEL);
        if (ret) {
-               __free_dma_rx_desc_resources(priv, queue);
+               __free_dma_rx_desc_resources(priv, &priv->dma_conf, queue);
                netdev_err(priv->dev, "Failed to init RX desc.\n");
                return;
        }
 
        stmmac_reset_rx_queue(priv, queue);
-       stmmac_clear_rx_descriptors(priv, queue);
+       stmmac_clear_rx_descriptors(priv, &priv->dma_conf, queue);
 
        stmmac_init_rx_chan(priv, priv->ioaddr, priv->plat->dma_cfg,
                            rx_q->dma_rx_phy, rx_q->queue_index);
@@ -6432,7 +6548,7 @@ void stmmac_disable_tx_queue(struct stmm
        spin_unlock_irqrestore(&ch->lock, flags);
 
        stmmac_stop_tx_dma(priv, queue);
-       __free_dma_tx_desc_resources(priv, queue);
+       __free_dma_tx_desc_resources(priv, &priv->dma_conf, queue);
 }
 
 void stmmac_enable_tx_queue(struct stmmac_priv *priv, u32 queue)
@@ -6442,21 +6558,21 @@ void stmmac_enable_tx_queue(struct stmma
        unsigned long flags;
        int ret;
 
-       ret = __alloc_dma_tx_desc_resources(priv, queue);
+       ret = __alloc_dma_tx_desc_resources(priv, &priv->dma_conf, queue);
        if (ret) {
                netdev_err(priv->dev, "Failed to alloc TX desc.\n");
                return;
        }
 
-       ret = __init_dma_tx_desc_rings(priv, queue);
+       ret = __init_dma_tx_desc_rings(priv,  &priv->dma_conf, queue);
        if (ret) {
-               __free_dma_tx_desc_resources(priv, queue);
+               __free_dma_tx_desc_resources(priv, &priv->dma_conf, queue);
                netdev_err(priv->dev, "Failed to init TX desc.\n");
                return;
        }
 
        stmmac_reset_tx_queue(priv, queue);
-       stmmac_clear_tx_descriptors(priv, queue);
+       stmmac_clear_tx_descriptors(priv, &priv->dma_conf, queue);
 
        stmmac_init_tx_chan(priv, priv->ioaddr, priv->plat->dma_cfg,
                            tx_q->dma_tx_phy, tx_q->queue_index);
@@ -6493,7 +6609,7 @@ void stmmac_xdp_release(struct net_devic
        stmmac_stop_all_dma(priv);
 
        /* Release and free the Rx/Tx resources */
-       free_dma_desc_resources(priv);
+       free_dma_desc_resources(priv, &priv->dma_conf);
 
        /* Disable the MAC Rx/Tx */
        stmmac_mac_set(priv, priv->ioaddr, false);
@@ -6518,14 +6634,14 @@ int stmmac_xdp_open(struct net_device *d
        u32 chan;
        int ret;
 
-       ret = alloc_dma_desc_resources(priv);
+       ret = alloc_dma_desc_resources(priv, &priv->dma_conf);
        if (ret < 0) {
                netdev_err(dev, "%s: DMA descriptors allocation failed\n",
                           __func__);
                goto dma_desc_error;
        }
 
-       ret = init_dma_desc_rings(dev, GFP_KERNEL);
+       ret = init_dma_desc_rings(dev, &priv->dma_conf, GFP_KERNEL);
        if (ret < 0) {
                netdev_err(dev, "%s: DMA descriptors initialization failed\n",
                           __func__);
@@ -6607,7 +6723,7 @@ irq_error:
 
        stmmac_hw_teardown(dev);
 init_error:
-       free_dma_desc_resources(priv);
+       free_dma_desc_resources(priv, &priv->dma_conf);
 dma_desc_error:
        return ret;
 }
@@ -7476,7 +7592,7 @@ int stmmac_resume(struct device *dev)
        stmmac_reset_queues_param(priv);
 
        stmmac_free_tx_skbufs(priv);
-       stmmac_clear_descriptors(priv);
+       stmmac_clear_descriptors(priv, &priv->dma_conf);
 
        stmmac_hw_setup(ndev, false);
        stmmac_init_coalesce(priv);