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Commit 9046a745 authored by David S. Miller's avatar David S. Miller
Browse files

Merge branch 'r6040-next' 



Florian Fainelli says:

====================
net: r6040: Misc updates

Here are some various updates for the r6040 driver, mostly to make it more
modern and catch up with the latest API improvements.
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 6ebd1a6d 9da28041

MAINTAINERS

+1 −1
Original line number Diff line number Diff line
@@ -9559,7 +9559,7 @@ M: Florian Fainelli <florian@openwrt.org> 
S:	Maintained



RDC R6040 FAST ETHERNET DRIVER

M:	Florian Fainelli <florian@openwrt.org>

M:	Florian Fainelli <f.fainelli@gmail.com>

L:	netdev@vger.kernel.org

S:	Maintained

F:	drivers/net/ethernet/rdc/r6040.c

drivers/net/ethernet/rdc/r6040.c

+27 −32
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ 
 * Copyright (C) 2004 Sten Wang <sten.wang@rdc.com.tw>

 * Copyright (C) 2007

 *	Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>

 * Copyright (C) 2007-2012 Florian Fainelli <florian@openwrt.org>

 * Copyright (C) 2007-2012 Florian Fainelli <f.fainelli@gmail.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License
@@ -48,8 +48,8 @@ 
#include <asm/processor.h>



#define DRV_NAME	"r6040"

#define DRV_VERSION	"0.28"

#define DRV_RELDATE	"07Oct2011"

#define DRV_VERSION	"0.29"

#define DRV_RELDATE	"04Jul2016"



/* Time in jiffies before concluding the transmitter is hung. */

#define TX_TIMEOUT	(6000 * HZ / 1000)
@@ -162,7 +162,7 @@ 


MODULE_AUTHOR("Sten Wang <sten.wang@rdc.com.tw>,"

	"Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>,"

	"Florian Fainelli <florian@openwrt.org>");

	"Florian Fainelli <f.fainelli@gmail.com>");

MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("RDC R6040 NAPI PCI FastEthernet driver");

MODULE_VERSION(DRV_VERSION " " DRV_RELDATE);
@@ -614,10 +614,15 @@ static void r6040_tx(struct net_device *dev) 
		if (descptr->status & DSC_OWNER_MAC)

			break; /* Not complete */

		skb_ptr = descptr->skb_ptr;



		/* Statistic Counter */

		dev->stats.tx_packets++;

		dev->stats.tx_bytes += skb_ptr->len;



		pci_unmap_single(priv->pdev, le32_to_cpu(descptr->buf),

			skb_ptr->len, PCI_DMA_TODEVICE);

		/* Free buffer */

		dev_kfree_skb_irq(skb_ptr);

		dev_kfree_skb(skb_ptr);

		descptr->skb_ptr = NULL;

		/* To next descriptor */

		descptr = descptr->vndescp;
@@ -638,12 +643,15 @@ static int r6040_poll(struct napi_struct *napi, int budget) 
	void __iomem *ioaddr = priv->base;

	int work_done;



	r6040_tx(dev);



	work_done = r6040_rx(dev, budget);



	if (work_done < budget) {

		napi_complete(napi);

		/* Enable RX interrupt */

		iowrite16(ioread16(ioaddr + MIER) | RX_INTS, ioaddr + MIER);

		napi_complete_done(napi, work_done);

		/* Enable RX/TX interrupt */

		iowrite16(ioread16(ioaddr + MIER) | RX_INTS | TX_INTS,

			  ioaddr + MIER);

	}

	return work_done;

}
@@ -670,7 +678,7 @@ static irqreturn_t r6040_interrupt(int irq, void *dev_id) 
	}



	/* RX interrupt request */

	if (status & RX_INTS) {

	if (status & (RX_INTS | TX_INTS)) {

		if (status & RX_NO_DESC) {

			/* RX descriptor unavailable */

			dev->stats.rx_dropped++;
@@ -681,15 +689,11 @@ static irqreturn_t r6040_interrupt(int irq, void *dev_id) 


		if (likely(napi_schedule_prep(&lp->napi))) {

			/* Mask off RX interrupt */

			misr &= ~RX_INTS;

			__napi_schedule(&lp->napi);

			misr &= ~(RX_INTS | TX_INTS);

			__napi_schedule_irqoff(&lp->napi);

		}

	}



	/* TX interrupt request */

	if (status & TX_INTS)

		r6040_tx(dev);



	/* Restore RDC MAC interrupt */

	iowrite16(misr, ioaddr + MIER);
@@ -810,6 +814,9 @@ static netdev_tx_t r6040_start_xmit(struct sk_buff *skb, 
	void __iomem *ioaddr = lp->base;

	unsigned long flags;



	if (skb_put_padto(skb, ETH_ZLEN) < 0)

		return NETDEV_TX_OK;



	/* Critical Section */

	spin_lock_irqsave(&lp->lock, flags);
@@ -821,17 +828,10 @@ static netdev_tx_t r6040_start_xmit(struct sk_buff *skb, 
		return NETDEV_TX_BUSY;

	}



	/* Statistic Counter */

	dev->stats.tx_packets++;

	dev->stats.tx_bytes += skb->len;

	/* Set TX descriptor & Transmit it */

	lp->tx_free_desc--;

	descptr = lp->tx_insert_ptr;

	if (skb->len < ETH_ZLEN)

		descptr->len = ETH_ZLEN;

	else

	descptr->len = skb->len;



	descptr->skb_ptr = skb;

	descptr->buf = cpu_to_le32(pci_map_single(lp->pdev,

		skb->data, skb->len, PCI_DMA_TODEVICE));
@@ -840,6 +840,7 @@ static netdev_tx_t r6040_start_xmit(struct sk_buff *skb, 
	skb_tx_timestamp(skb);



	/* Trigger the MAC to check the TX descriptor */

	if (!skb->xmit_more || netif_queue_stopped(dev))

		iowrite16(TM2TX, ioaddr + MTPR);

	lp->tx_insert_ptr = descptr->vndescp;
@@ -1001,14 +1002,8 @@ static void r6040_adjust_link(struct net_device *dev) 
		lp->old_duplex = phydev->duplex;

	}



	if (status_changed) {

		pr_info("%s: link %s", dev->name, phydev->link ?

			"UP" : "DOWN");

		if (phydev->link)

			pr_cont(" - %d/%s", phydev->speed,

			DUPLEX_FULL == phydev->duplex ? "full" : "half");

		pr_cont("\n");

	}

	if (status_changed)

		phy_print_status(phydev);

}



static int r6040_mii_probe(struct net_device *dev)