 59fe39f6fc
			
		
	
	59fe39f6fc
	
	
	
		
			
			Manually rebased: pending-5.15/103-kbuild-export-SUBARCH.patch All other patches automatically rebased. Build system: x86_64 Build-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod Run-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod Signed-off-by: John Audia <therealgraysky@proton.me>
		
			
				
	
	
		
			143 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			143 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From f9ec5723c3dbfcede9c7b0dcdf85e401ce16316c Mon Sep 17 00:00:00 2001
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| From: Christian Marangi <ansuelsmth@gmail.com>
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| Date: Sat, 23 Jul 2022 16:29:29 +0200
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| Subject: [PATCH 1/5] net: ethernet: stmicro: stmmac: move queue reset to
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|  dedicated functions
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| 
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| Move queue reset to dedicated functions. This aside from a simple
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| cleanup is also required to allocate a dma conf without resetting the tx
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| queue while the device is temporarily detached as now the reset is not
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| part of the dma init function and can be done later in the code flow.
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| 
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| Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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| Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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| ---
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|  .../net/ethernet/stmicro/stmmac/stmmac_main.c | 59 ++++++++++---------
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|  1 file changed, 31 insertions(+), 28 deletions(-)
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| 
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| --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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| +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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| @@ -130,6 +130,9 @@ static irqreturn_t stmmac_mac_interrupt(
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|  static irqreturn_t stmmac_safety_interrupt(int irq, void *dev_id);
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|  static irqreturn_t stmmac_msi_intr_tx(int irq, void *data);
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|  static irqreturn_t stmmac_msi_intr_rx(int irq, void *data);
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| +static void stmmac_reset_rx_queue(struct stmmac_priv *priv, u32 queue);
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| +static void stmmac_reset_tx_queue(struct stmmac_priv *priv, u32 queue);
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| +static void stmmac_reset_queues_param(struct stmmac_priv *priv);
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|  static void stmmac_tx_timer_arm(struct stmmac_priv *priv, u32 queue);
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|  static void stmmac_flush_tx_descriptors(struct stmmac_priv *priv, int queue);
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|  
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| @@ -1710,9 +1713,6 @@ static int __init_dma_rx_desc_rings(stru
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|  			return -ENOMEM;
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|  	}
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|  
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| -	rx_q->cur_rx = 0;
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| -	rx_q->dirty_rx = 0;
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| -
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|  	/* Setup the chained descriptor addresses */
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|  	if (priv->mode == STMMAC_CHAIN_MODE) {
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|  		if (priv->extend_desc)
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| @@ -1818,12 +1818,6 @@ static int __init_dma_tx_desc_rings(stru
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|  		tx_q->tx_skbuff[i] = NULL;
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|  	}
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|  
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| -	tx_q->dirty_tx = 0;
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| -	tx_q->cur_tx = 0;
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| -	tx_q->mss = 0;
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| -
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| -	netdev_tx_reset_queue(netdev_get_tx_queue(priv->dev, queue));
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| -
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|  	return 0;
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|  }
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|  
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| @@ -2692,10 +2686,7 @@ static void stmmac_tx_err(struct stmmac_
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|  	stmmac_stop_tx_dma(priv, chan);
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|  	dma_free_tx_skbufs(priv, chan);
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|  	stmmac_clear_tx_descriptors(priv, chan);
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| -	tx_q->dirty_tx = 0;
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| -	tx_q->cur_tx = 0;
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| -	tx_q->mss = 0;
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| -	netdev_tx_reset_queue(netdev_get_tx_queue(priv->dev, chan));
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| +	stmmac_reset_tx_queue(priv, chan);
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|  	stmmac_init_tx_chan(priv, priv->ioaddr, priv->plat->dma_cfg,
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|  			    tx_q->dma_tx_phy, chan);
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|  	stmmac_start_tx_dma(priv, chan);
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| @@ -3779,6 +3770,8 @@ static int stmmac_open(struct net_device
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|  		}
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|  	}
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|  
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| +	stmmac_reset_queues_param(priv);
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| +
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|  	ret = stmmac_hw_setup(dev, true);
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|  	if (ret < 0) {
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|  		netdev_err(priv->dev, "%s: Hw setup failed\n", __func__);
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| @@ -6422,6 +6415,7 @@ void stmmac_enable_rx_queue(struct stmma
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|  		return;
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|  	}
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|  
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| +	stmmac_reset_rx_queue(priv, queue);
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|  	stmmac_clear_rx_descriptors(priv, queue);
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|  
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|  	stmmac_init_rx_chan(priv, priv->ioaddr, priv->plat->dma_cfg,
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| @@ -6483,6 +6477,7 @@ void stmmac_enable_tx_queue(struct stmma
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|  		return;
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|  	}
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|  
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| +	stmmac_reset_tx_queue(priv, queue);
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|  	stmmac_clear_tx_descriptors(priv, queue);
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|  
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|  	stmmac_init_tx_chan(priv, priv->ioaddr, priv->plat->dma_cfg,
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| @@ -7405,6 +7400,25 @@ int stmmac_suspend(struct device *dev)
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|  }
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|  EXPORT_SYMBOL_GPL(stmmac_suspend);
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|  
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| +static void stmmac_reset_rx_queue(struct stmmac_priv *priv, u32 queue)
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| +{
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| +	struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue];
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| +
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| +	rx_q->cur_rx = 0;
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| +	rx_q->dirty_rx = 0;
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| +}
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| +
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| +static void stmmac_reset_tx_queue(struct stmmac_priv *priv, u32 queue)
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| +{
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| +	struct stmmac_tx_queue *tx_q = &priv->tx_queue[queue];
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| +
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| +	tx_q->cur_tx = 0;
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| +	tx_q->dirty_tx = 0;
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| +	tx_q->mss = 0;
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| +
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| +	netdev_tx_reset_queue(netdev_get_tx_queue(priv->dev, queue));
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| +}
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| +
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|  /**
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|   * stmmac_reset_queues_param - reset queue parameters
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|   * @priv: device pointer
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| @@ -7415,22 +7429,11 @@ static void stmmac_reset_queues_param(st
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|  	u32 tx_cnt = priv->plat->tx_queues_to_use;
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|  	u32 queue;
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|  
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| -	for (queue = 0; queue < rx_cnt; queue++) {
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| -		struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue];
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| +	for (queue = 0; queue < rx_cnt; queue++)
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| +		stmmac_reset_rx_queue(priv, queue);
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|  
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| -		rx_q->cur_rx = 0;
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| -		rx_q->dirty_rx = 0;
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| -	}
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| -
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| -	for (queue = 0; queue < tx_cnt; queue++) {
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| -		struct stmmac_tx_queue *tx_q = &priv->tx_queue[queue];
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| -
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| -		tx_q->cur_tx = 0;
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| -		tx_q->dirty_tx = 0;
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| -		tx_q->mss = 0;
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| -
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| -		netdev_tx_reset_queue(netdev_get_tx_queue(priv->dev, queue));
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| -	}
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| +	for (queue = 0; queue < tx_cnt; queue++)
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| +		stmmac_reset_tx_queue(priv, queue);
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|  }
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|  
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|  /**
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