From fef6108d4556917c45cd9ba397c1c7597f3990e1 Mon Sep 17 00:00:00 2001
From: Andy Fleming <afleming@freescale.com>
Date: Thu, 20 Apr 2006 16:44:29 -0500
Subject: [PATCH 01/12] [PATCH] Fix locking in gianfar

This patch fixes several bugs in the gianfar driver, including a major one
where spinlocks were horribly broken:

* Split gianfar locks into two types: TX and RX
* Made it so gfar_start() now clears RHALT
* Fixed a bug where calling gfar_start_xmit() with interrupts off would
corrupt the interrupt state
* Fixed a bug where a frame could potentially arrive, and never be handled
(if no more frames arrived
* Fixed a bug where the rx_work_limit would never be observed by the rx
completion code
* Fixed a bug where the interrupt handlers were not actually protected by
their spinlocks

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/gianfar.c         | 56 ++++++++++++++---------------
 drivers/net/gianfar.h         | 67 ++++++++++++++++++++++++-----------
 drivers/net/gianfar_ethtool.c | 20 +++++++----
 drivers/net/gianfar_sysfs.c   | 24 ++++++-------
 4 files changed, 100 insertions(+), 67 deletions(-)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 771e25d8c417..218d31764c52 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -210,7 +210,8 @@ static int gfar_probe(struct platform_device *pdev)
 		goto regs_fail;
 	}
 
-	spin_lock_init(&priv->lock);
+	spin_lock_init(&priv->txlock);
+	spin_lock_init(&priv->rxlock);
 
 	platform_set_drvdata(pdev, dev);
 
@@ -515,11 +516,13 @@ void stop_gfar(struct net_device *dev)
 	phy_stop(priv->phydev);
 
 	/* Lock it down */
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->txlock, flags);
+	spin_lock(&priv->rxlock);
 
 	gfar_halt(dev);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock(&priv->rxlock);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 
 	/* Free the IRQs */
 	if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
@@ -605,14 +608,15 @@ void gfar_start(struct net_device *dev)
 	tempval |= DMACTRL_INIT_SETTINGS;
 	gfar_write(&priv->regs->dmactrl, tempval);
 
-	/* Clear THLT, so that the DMA starts polling now */
-	gfar_write(&regs->tstat, TSTAT_CLEAR_THALT);
-
 	/* Make sure we aren't stopped */
 	tempval = gfar_read(&priv->regs->dmactrl);
 	tempval &= ~(DMACTRL_GRS | DMACTRL_GTS);
 	gfar_write(&priv->regs->dmactrl, tempval);
 
+	/* Clear THLT/RHLT, so that the DMA starts polling now */
+	gfar_write(&regs->tstat, TSTAT_CLEAR_THALT);
+	gfar_write(&regs->rstat, RSTAT_CLEAR_RHALT);
+
 	/* Unmask the interrupts we look for */
 	gfar_write(&regs->imask, IMASK_DEFAULT);
 }
@@ -928,12 +932,13 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct txfcb *fcb = NULL;
 	struct txbd8 *txbdp;
 	u16 status;
+	unsigned long flags;
 
 	/* Update transmit stats */
 	priv->stats.tx_bytes += skb->len;
 
 	/* Lock priv now */
-	spin_lock_irq(&priv->lock);
+	spin_lock_irqsave(&priv->txlock, flags);
 
 	/* Point at the first free tx descriptor */
 	txbdp = priv->cur_tx;
@@ -1004,7 +1009,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	gfar_write(&priv->regs->tstat, TSTAT_CLEAR_THALT);
 
 	/* Unlock priv */
-	spin_unlock_irq(&priv->lock);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 
 	return 0;
 }
@@ -1049,7 +1054,7 @@ static void gfar_vlan_rx_register(struct net_device *dev,
 	unsigned long flags;
 	u32 tempval;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->rxlock, flags);
 
 	priv->vlgrp = grp;
 
@@ -1076,7 +1081,7 @@ static void gfar_vlan_rx_register(struct net_device *dev,
 		gfar_write(&priv->regs->rctrl, tempval);
 	}
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->rxlock, flags);
 }
 
 
@@ -1085,12 +1090,12 @@ static void gfar_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid)
 	struct gfar_private *priv = netdev_priv(dev);
 	unsigned long flags;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->rxlock, flags);
 
 	if (priv->vlgrp)
 		priv->vlgrp->vlan_devices[vid] = NULL;
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->rxlock, flags);
 }
 
 
@@ -1179,7 +1184,7 @@ static irqreturn_t gfar_transmit(int irq, void *dev_id, struct pt_regs *regs)
 	gfar_write(&priv->regs->ievent, IEVENT_TX_MASK);
 
 	/* Lock priv */
-	spin_lock(&priv->lock);
+	spin_lock(&priv->txlock);
 	bdp = priv->dirty_tx;
 	while ((bdp->status & TXBD_READY) == 0) {
 		/* If dirty_tx and cur_tx are the same, then either the */
@@ -1224,7 +1229,7 @@ static irqreturn_t gfar_transmit(int irq, void *dev_id, struct pt_regs *regs)
 	else
 		gfar_write(&priv->regs->txic, 0);
 
-	spin_unlock(&priv->lock);
+	spin_unlock(&priv->txlock);
 
 	return IRQ_HANDLED;
 }
@@ -1305,9 +1310,10 @@ irqreturn_t gfar_receive(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = (struct net_device *) dev_id;
 	struct gfar_private *priv = netdev_priv(dev);
-
 #ifdef CONFIG_GFAR_NAPI
 	u32 tempval;
+#else
+	unsigned long flags;
 #endif
 
 	/* Clear IEVENT, so rx interrupt isn't called again
@@ -1330,7 +1336,7 @@ irqreturn_t gfar_receive(int irq, void *dev_id, struct pt_regs *regs)
 	}
 #else
 
-	spin_lock(&priv->lock);
+	spin_lock_irqsave(&priv->rxlock, flags);
 	gfar_clean_rx_ring(dev, priv->rx_ring_size);
 
 	/* If we are coalescing interrupts, update the timer */
@@ -1341,7 +1347,7 @@ irqreturn_t gfar_receive(int irq, void *dev_id, struct pt_regs *regs)
 	else
 		gfar_write(&priv->regs->rxic, 0);
 
-	spin_unlock(&priv->lock);
+	spin_unlock_irqrestore(&priv->rxlock, flags);
 #endif
 
 	return IRQ_HANDLED;
@@ -1490,13 +1496,6 @@ int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit)
 	/* Update the current rxbd pointer to be the next one */
 	priv->cur_rx = bdp;
 
-	/* If no packets have arrived since the
-	 * last one we processed, clear the IEVENT RX and
-	 * BSY bits so that another interrupt won't be
-	 * generated when we set IMASK */
-	if (bdp->status & RXBD_EMPTY)
-		gfar_write(&priv->regs->ievent, IEVENT_RX_MASK);
-
 	return howmany;
 }
 
@@ -1516,7 +1515,7 @@ static int gfar_poll(struct net_device *dev, int *budget)
 	rx_work_limit -= howmany;
 	*budget -= howmany;
 
-	if (rx_work_limit >= 0) {
+	if (rx_work_limit > 0) {
 		netif_rx_complete(dev);
 
 		/* Clear the halt bit in RSTAT */
@@ -1533,7 +1532,8 @@ static int gfar_poll(struct net_device *dev, int *budget)
 			gfar_write(&priv->regs->rxic, 0);
 	}
 
-	return (rx_work_limit < 0) ? 1 : 0;
+	/* Return 1 if there's more work to do */
+	return (rx_work_limit > 0) ? 0 : 1;
 }
 #endif
 
@@ -1629,7 +1629,7 @@ static void adjust_link(struct net_device *dev)
 	struct phy_device *phydev = priv->phydev;
 	int new_state = 0;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->txlock, flags);
 	if (phydev->link) {
 		u32 tempval = gfar_read(&regs->maccfg2);
 		u32 ecntrl = gfar_read(&regs->ecntrl);
@@ -1694,7 +1694,7 @@ static void adjust_link(struct net_device *dev)
 	if (new_state && netif_msg_link(priv))
 		phy_print_status(phydev);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 }
 
 /* Update the hash table based on the current list of multicast
diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index d37d5401be6e..127c98cf3336 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -656,43 +656,62 @@ struct gfar {
  * the buffer descriptor determines the actual condition.
  */
 struct gfar_private {
-	/* pointers to arrays of skbuffs for tx and rx */
+	/* Fields controlled by TX lock */
+	spinlock_t txlock;
+
+	/* Pointer to the array of skbuffs */
 	struct sk_buff ** tx_skbuff;
-	struct sk_buff ** rx_skbuff;
 
-	/* indices pointing to the next free sbk in skb arrays */
+	/* next free skb in the array */
 	u16 skb_curtx;
-	u16 skb_currx;
 
-	/* index of the first skb which hasn't been transmitted
-	 * yet. */
+	/* First skb in line to be transmitted */
 	u16 skb_dirtytx;
 
 	/* Configuration info for the coalescing features */
 	unsigned char txcoalescing;
 	unsigned short txcount;
 	unsigned short txtime;
+
+	/* Buffer descriptor pointers */
+	struct txbd8 *tx_bd_base;	/* First tx buffer descriptor */
+	struct txbd8 *cur_tx;	        /* Next free ring entry */
+	struct txbd8 *dirty_tx;		/* First buffer in line
+					   to be transmitted */
+	unsigned int tx_ring_size;
+
+	/* RX Locked fields */
+	spinlock_t rxlock;
+
+	/* skb array and index */
+	struct sk_buff ** rx_skbuff;
+	u16 skb_currx;
+
+	/* RX Coalescing values */
 	unsigned char rxcoalescing;
 	unsigned short rxcount;
 	unsigned short rxtime;
 
-	/* GFAR addresses */
-	struct rxbd8 *rx_bd_base;	/* Base addresses of Rx and Tx Buffers */
-	struct txbd8 *tx_bd_base;
+	struct rxbd8 *rx_bd_base;	/* First Rx buffers */
 	struct rxbd8 *cur_rx;           /* Next free rx ring entry */
-	struct txbd8 *cur_tx;	        /* Next free ring entry */
-	struct txbd8 *dirty_tx;		/* The Ring entry to be freed. */
-	struct gfar __iomem *regs;	/* Pointer to the GFAR memory mapped Registers */
-	u32 __iomem *hash_regs[16];
-	int hash_width;
-	struct net_device_stats stats; /* linux network statistics */
-	struct gfar_extra_stats extra_stats;
-	spinlock_t lock;
+
+	/* RX parameters */
+	unsigned int rx_ring_size;
 	unsigned int rx_buffer_size;
 	unsigned int rx_stash_size;
 	unsigned int rx_stash_index;
-	unsigned int tx_ring_size;
-	unsigned int rx_ring_size;
+
+	struct vlan_group *vlgrp;
+
+	/* Unprotected fields */
+	/* Pointer to the GFAR memory mapped Registers */
+	struct gfar __iomem *regs;
+
+	/* Hash registers and their width */
+	u32 __iomem *hash_regs[16];
+	int hash_width;
+
+	/* global parameters */
 	unsigned int fifo_threshold;
 	unsigned int fifo_starve;
 	unsigned int fifo_starve_off;
@@ -702,13 +721,15 @@ struct gfar_private {
 		extended_hash:1,
 		bd_stash_en:1;
 	unsigned short padding;
-	struct vlan_group *vlgrp;
-	/* Info structure initialized by board setup code */
+
 	unsigned int interruptTransmit;
 	unsigned int interruptReceive;
 	unsigned int interruptError;
+
+	/* info structure initialized by platform code */
 	struct gianfar_platform_data *einfo;
 
+	/* PHY stuff */
 	struct phy_device *phydev;
 	struct mii_bus *mii_bus;
 	int oldspeed;
@@ -716,6 +737,10 @@ struct gfar_private {
 	int oldlink;
 
 	uint32_t msg_enable;
+
+	/* Network Statistics */
+	struct net_device_stats stats;
+	struct gfar_extra_stats extra_stats;
 };
 
 static inline u32 gfar_read(volatile unsigned __iomem *addr)
diff --git a/drivers/net/gianfar_ethtool.c b/drivers/net/gianfar_ethtool.c
index 5de7b2e259dc..d69698c695ef 100644
--- a/drivers/net/gianfar_ethtool.c
+++ b/drivers/net/gianfar_ethtool.c
@@ -455,10 +455,14 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva
 
 		/* Halt TX and RX, and process the frames which
 		 * have already been received */
-		spin_lock_irqsave(&priv->lock, flags);
+		spin_lock_irqsave(&priv->txlock, flags);
+		spin_lock(&priv->rxlock);
+
 		gfar_halt(dev);
 		gfar_clean_rx_ring(dev, priv->rx_ring_size);
-		spin_unlock_irqrestore(&priv->lock, flags);
+
+		spin_unlock(&priv->rxlock);
+		spin_unlock_irqrestore(&priv->txlock, flags);
 
 		/* Now we take down the rings to rebuild them */
 		stop_gfar(dev);
@@ -488,10 +492,14 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
 
 		/* Halt TX and RX, and process the frames which
 		 * have already been received */
-		spin_lock_irqsave(&priv->lock, flags);
+		spin_lock_irqsave(&priv->txlock, flags);
+		spin_lock(&priv->rxlock);
+
 		gfar_halt(dev);
 		gfar_clean_rx_ring(dev, priv->rx_ring_size);
-		spin_unlock_irqrestore(&priv->lock, flags);
+
+		spin_unlock(&priv->rxlock);
+		spin_unlock_irqrestore(&priv->txlock, flags);
 
 		/* Now we take down the rings to rebuild them */
 		stop_gfar(dev);
@@ -523,7 +531,7 @@ static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
 	if (!(priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
 		return -EOPNOTSUPP;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->txlock, flags);
 	gfar_halt(dev);
 
 	if (data)
@@ -532,7 +540,7 @@ static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
 		dev->features &= ~NETIF_F_IP_CSUM;
 
 	gfar_start(dev);
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 
 	return 0;
 }
diff --git a/drivers/net/gianfar_sysfs.c b/drivers/net/gianfar_sysfs.c
index 51ef181b1368..a6d5c43199cb 100644
--- a/drivers/net/gianfar_sysfs.c
+++ b/drivers/net/gianfar_sysfs.c
@@ -82,7 +82,7 @@ static ssize_t gfar_set_bd_stash(struct class_device *cdev,
 	else
 		return count;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->rxlock, flags);
 
 	/* Set the new stashing value */
 	priv->bd_stash_en = new_setting;
@@ -96,7 +96,7 @@ static ssize_t gfar_set_bd_stash(struct class_device *cdev,
 
 	gfar_write(&priv->regs->attr, temp);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->rxlock, flags);
 
 	return count;
 }
@@ -118,7 +118,7 @@ static ssize_t gfar_set_rx_stash_size(struct class_device *cdev,
 	u32 temp;
 	unsigned long flags;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->rxlock, flags);
 	if (length > priv->rx_buffer_size)
 		return count;
 
@@ -142,7 +142,7 @@ static ssize_t gfar_set_rx_stash_size(struct class_device *cdev,
 
 	gfar_write(&priv->regs->attr, temp);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->rxlock, flags);
 
 	return count;
 }
@@ -166,7 +166,7 @@ static ssize_t gfar_set_rx_stash_index(struct class_device *cdev,
 	u32 temp;
 	unsigned long flags;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->rxlock, flags);
 	if (index > priv->rx_stash_size)
 		return count;
 
@@ -180,7 +180,7 @@ static ssize_t gfar_set_rx_stash_index(struct class_device *cdev,
 	temp |= ATTRELI_EI(index);
 	gfar_write(&priv->regs->attreli, flags);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->rxlock, flags);
 
 	return count;
 }
@@ -205,7 +205,7 @@ static ssize_t gfar_set_fifo_threshold(struct class_device *cdev,
 	if (length > GFAR_MAX_FIFO_THRESHOLD)
 		return count;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->txlock, flags);
 
 	priv->fifo_threshold = length;
 
@@ -214,7 +214,7 @@ static ssize_t gfar_set_fifo_threshold(struct class_device *cdev,
 	temp |= length;
 	gfar_write(&priv->regs->fifo_tx_thr, temp);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 
 	return count;
 }
@@ -240,7 +240,7 @@ static ssize_t gfar_set_fifo_starve(struct class_device *cdev,
 	if (num > GFAR_MAX_FIFO_STARVE)
 		return count;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->txlock, flags);
 
 	priv->fifo_starve = num;
 
@@ -249,7 +249,7 @@ static ssize_t gfar_set_fifo_starve(struct class_device *cdev,
 	temp |= num;
 	gfar_write(&priv->regs->fifo_tx_starve, temp);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 
 	return count;
 }
@@ -274,7 +274,7 @@ static ssize_t gfar_set_fifo_starve_off(struct class_device *cdev,
 	if (num > GFAR_MAX_FIFO_STARVE_OFF)
 		return count;
 
-	spin_lock_irqsave(&priv->lock, flags);
+	spin_lock_irqsave(&priv->txlock, flags);
 
 	priv->fifo_starve_off = num;
 
@@ -283,7 +283,7 @@ static ssize_t gfar_set_fifo_starve_off(struct class_device *cdev,
 	temp |= num;
 	gfar_write(&priv->regs->fifo_tx_starve_shutoff, temp);
 
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->txlock, flags);
 
 	return count;
 }

From dac322e39a2b82871cf514c9a533f24a1b4c7e19 Mon Sep 17 00:00:00 2001
From: Pavel Roskin <proski@gnu.org>
Date: Mon, 17 Apr 2006 11:36:43 -0400
Subject: [PATCH 02/12] [PATCH] Fix crash on big-endian systems during scan

The original code was doing arithmetics on a little-endian value.
Reported by Stelios Koroneos <stelios@stelioscellar.com>

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/hostap/hostap_ioctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 8b37e824dfcb..8399de581893 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -1860,7 +1860,7 @@ static char * __prism2_translate_scan(local_info_t *local,
 	memset(&iwe, 0, sizeof(iwe));
 	iwe.cmd = SIOCGIWFREQ;
 	if (scan) {
-		chan = scan->chid;
+		chan = le16_to_cpu(scan->chid);
 	} else if (bss) {
 		chan = bss->chan;
 	} else {
@@ -1868,7 +1868,7 @@ static char * __prism2_translate_scan(local_info_t *local,
 	}
 
 	if (chan > 0) {
-		iwe.u.freq.m = freq_list[le16_to_cpu(chan - 1)] * 100000;
+		iwe.u.freq.m = freq_list[chan - 1] * 100000;
 		iwe.u.freq.e = 1;
 		current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
 						  IW_EV_FREQ_LEN);

From 818667f7c40dd0bd14029b5ac1d0f5282e12310e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 20 Apr 2006 20:02:03 +0200
Subject: [PATCH 03/12] [PATCH] softmac: fix SIOCSIWAP

There are some bugs in the current implementation of the SIOCSIWAP wext,
for example that when you do it twice and it fails, it may still try
another access point for some reason. This patch fixes this by introducing
a new flag that tells the association code that the bssid that is in use
was fixed by the user and shouldn't be deviated from.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/ieee80211softmac.h                |  5 +++-
 .../softmac/ieee80211softmac_assoc.c          | 20 +++++++++++---
 .../softmac/ieee80211softmac_module.c         |  2 ++
 net/ieee80211/softmac/ieee80211softmac_wx.c   | 27 ++++++++++++-------
 4 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/include/net/ieee80211softmac.h b/include/net/ieee80211softmac.h
index 6b3693f05ca0..b1ebfbae397f 100644
--- a/include/net/ieee80211softmac.h
+++ b/include/net/ieee80211softmac.h
@@ -96,10 +96,13 @@ struct ieee80211softmac_assoc_info {
 	 *
 	 * bssvalid is true if we found a matching network
 	 * and saved it's BSSID into the bssid above.
+	 *
+	 * bssfixed is used for SIOCSIWAP.
 	 */
 	u8 static_essid:1,
 	   associating:1,
-	   bssvalid:1;
+	   bssvalid:1,
+	   bssfixed:1;
 
 	/* Scan retries remaining */
 	int scan_retry;
diff --git a/net/ieee80211/softmac/ieee80211softmac_assoc.c b/net/ieee80211/softmac/ieee80211softmac_assoc.c
index 4498023841dc..fb79ce7d6439 100644
--- a/net/ieee80211/softmac/ieee80211softmac_assoc.c
+++ b/net/ieee80211/softmac/ieee80211softmac_assoc.c
@@ -144,6 +144,12 @@ network_matches_request(struct ieee80211softmac_device *mac, struct ieee80211_ne
 	if (!we_support_all_basic_rates(mac, net->rates_ex, net->rates_ex_len))
 		return 0;
 
+	/* assume that users know what they're doing ...
+	 * (note we don't let them select a net we're incompatible with) */
+	if (mac->associnfo.bssfixed) {
+		return !memcmp(mac->associnfo.bssid, net->bssid, ETH_ALEN);
+	}
+
 	/* if 'ANY' network requested, take any that doesn't have privacy enabled */
 	if (mac->associnfo.req_essid.len == 0 
 	    && !(net->capability & WLAN_CAPABILITY_PRIVACY))
@@ -176,7 +182,7 @@ ieee80211softmac_assoc_work(void *d)
 		ieee80211softmac_disassoc(mac, WLAN_REASON_DISASSOC_STA_HAS_LEFT);
 
 	/* try to find the requested network in our list, if we found one already */
-	if (mac->associnfo.bssvalid)
+	if (mac->associnfo.bssvalid || mac->associnfo.bssfixed)
 		found = ieee80211softmac_get_network_by_bssid(mac, mac->associnfo.bssid);	
 	
 	/* Search the ieee80211 networks for this network if we didn't find it by bssid,
@@ -241,19 +247,25 @@ ieee80211softmac_assoc_work(void *d)
 			if (ieee80211softmac_start_scan(mac))
 				dprintk(KERN_INFO PFX "Associate: failed to initiate scan. Is device up?\n");
 			return;
-		}
-		else {
+		} else {
 			spin_lock_irqsave(&mac->lock, flags);
 			mac->associnfo.associating = 0;
 			mac->associated = 0;
 			spin_unlock_irqrestore(&mac->lock, flags);
 
 			dprintk(KERN_INFO PFX "Unable to find matching network after scan!\n");
+			/* reset the retry counter for the next user request since we
+			 * break out and don't reschedule ourselves after this point. */
+			mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
 			ieee80211softmac_call_events(mac, IEEE80211SOFTMAC_EVENT_ASSOCIATE_NET_NOT_FOUND, NULL);
 			return;
 		}
 	}
-	
+
+	/* reset the retry counter for the next user request since we
+	 * now found a net and will try to associate to it, but not
+	 * schedule this function again. */
+	mac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
 	mac->associnfo.bssvalid = 1;
 	memcpy(mac->associnfo.bssid, found->bssid, ETH_ALEN);
 	/* copy the ESSID for displaying it */
diff --git a/net/ieee80211/softmac/ieee80211softmac_module.c b/net/ieee80211/softmac/ieee80211softmac_module.c
index 60f06a31f0d1..be83bdc1644a 100644
--- a/net/ieee80211/softmac/ieee80211softmac_module.c
+++ b/net/ieee80211/softmac/ieee80211softmac_module.c
@@ -45,6 +45,8 @@ struct net_device *alloc_ieee80211softmac(int sizeof_priv)
 	softmac->ieee->handle_disassoc = ieee80211softmac_handle_disassoc;
 	softmac->scaninfo = NULL;
 
+	softmac->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
+
 	/* TODO: initialise all the other callbacks in the ieee struct
 	 *	 (once they're written)
 	 */
diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c
index 00f0d4f71897..27edb2b5581a 100644
--- a/net/ieee80211/softmac/ieee80211softmac_wx.c
+++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -27,7 +27,8 @@
 #include "ieee80211softmac_priv.h"
 
 #include <net/iw_handler.h>
-
+/* for is_broadcast_ether_addr and is_zero_ether_addr */
+#include <linux/etherdevice.h>
 
 int
 ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
@@ -83,7 +84,6 @@ ieee80211softmac_wx_set_essid(struct net_device *net_dev,
 			sm->associnfo.static_essid = 1;
 		}
 	}
-	sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
 
 	/* set our requested ESSID length.
 	 * If applicable, we have already copied the data in */
@@ -310,8 +310,6 @@ ieee80211softmac_wx_set_wap(struct net_device *net_dev,
 			    char *extra)
 {
 	struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
-	static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-	static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 	unsigned long flags;
 
 	/* sanity check */
@@ -320,10 +318,17 @@ ieee80211softmac_wx_set_wap(struct net_device *net_dev,
 	}
 
 	spin_lock_irqsave(&mac->lock, flags);
-	if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) ||
-	    !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
-		schedule_work(&mac->associnfo.work);
-		goto out;
+	if (is_broadcast_ether_addr(data->ap_addr.sa_data)) {
+		/* the bssid we have is not to be fixed any longer,
+		 * and we should reassociate to the best AP. */
+		mac->associnfo.bssfixed = 0;
+		/* force reassociation */
+		mac->associnfo.bssvalid = 0;
+		if (mac->associated)
+			schedule_work(&mac->associnfo.work);
+	} else if (is_zero_ether_addr(data->ap_addr.sa_data)) {
+		/* the bssid we have is no longer fixed */
+		mac->associnfo.bssfixed = 0;
         } else {
 		if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
 			if (mac->associnfo.associating || mac->associated) {
@@ -333,12 +338,14 @@ ieee80211softmac_wx_set_wap(struct net_device *net_dev,
 		} else {
 			/* copy new value in data->ap_addr.sa_data to bssid */
 			memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
-		}	
+		}
+		/* tell the other code that this bssid should be used no matter what */
+		mac->associnfo.bssfixed = 1;
 		/* queue associate if new bssid or (old one again and not associated) */
 		schedule_work(&mac->associnfo.work);
         }
 
-out:
+ out:
 	spin_unlock_irqrestore(&mac->lock, flags);
 	return 0;
 }

From 9eac8f95d1bb2cec96340505bed2d2387780821f Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Sat, 22 Apr 2006 17:31:27 +0200
Subject: [PATCH 04/12] [PATCH] bcm43xx: add to MAINTAINERS

Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 MAINTAINERS | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4e1e8175eb6d..d6a8e5b434ec 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -421,6 +421,14 @@ L:	linux-hams@vger.kernel.org
 W:	http://www.baycom.org/~tom/ham/ham.html
 S:	Maintained
 
+BCM43XX WIRELESS DRIVER
+P:	Michael Buesch
+M:	mb@bu3sch.de
+P:	Stefano Brivio
+M:	st3@riseup.net
+W:	http://bcm43xx.berlios.de/
+S:	Maintained
+
 BEFS FILE SYSTEM
 P:	Sergey S. Kostyliov
 M:	rathamahata@php4.ru

From 7c241d37fe0e6442c5cf3b5d73f7f58f2dc66352 Mon Sep 17 00:00:00 2001
From: Michael Buesch <mb@bu3sch.de>
Date: Sun, 23 Apr 2006 13:23:10 +0200
Subject: [PATCH 05/12] [PATCH] bcm43xx: make PIO mode usable

This patch fixes PIO mode on the softmac bcm43xx
driver. (A dscape patch will follow).
It mainly fixes endianess issues.
This patch is tested on PowerPC32 and i386.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/bcm43xx/bcm43xx_dma.h |  8 ++
 drivers/net/wireless/bcm43xx/bcm43xx_pio.c | 92 +++++++++++++++-------
 drivers/net/wireless/bcm43xx/bcm43xx_pio.h | 16 +++-
 3 files changed, 84 insertions(+), 32 deletions(-)

diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.h b/drivers/net/wireless/bcm43xx/bcm43xx_dma.h
index 2d520e4b0276..b7d77638ba8c 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.h
@@ -213,6 +213,14 @@ static inline
 void bcm43xx_dma_rx(struct bcm43xx_dmaring *ring)
 {
 }
+static inline
+void bcm43xx_dma_tx_suspend(struct bcm43xx_dmaring *ring)
+{
+}
+static inline
+void bcm43xx_dma_tx_resume(struct bcm43xx_dmaring *ring)
+{
+}
 
 #endif /* CONFIG_BCM43XX_DMA */
 #endif /* BCM43xx_DMA_H_ */
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_pio.c b/drivers/net/wireless/bcm43xx/bcm43xx_pio.c
index c59ddd40680d..0aa1bd269a25 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_pio.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_pio.c
@@ -27,6 +27,7 @@
 #include "bcm43xx_pio.h"
 #include "bcm43xx_main.h"
 #include "bcm43xx_xmit.h"
+#include "bcm43xx_power.h"
 
 #include <linux/delay.h>
 
@@ -44,10 +45,10 @@ static void tx_octet(struct bcm43xx_pioqueue *queue,
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA,
 				  octet);
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_WRITEHI);
+				  BCM43xx_PIO_TXCTL_WRITELO);
 	} else {
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_WRITEHI);
+				  BCM43xx_PIO_TXCTL_WRITELO);
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA,
 				  octet);
 	}
@@ -103,7 +104,7 @@ static void tx_complete(struct bcm43xx_pioqueue *queue,
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXDATA,
 				  skb->data[skb->len - 1]);
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
-				  BCM43xx_PIO_TXCTL_WRITEHI |
+				  BCM43xx_PIO_TXCTL_WRITELO |
 				  BCM43xx_PIO_TXCTL_COMPLETE);
 	} else {
 		bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
@@ -112,9 +113,10 @@ static void tx_complete(struct bcm43xx_pioqueue *queue,
 }
 
 static u16 generate_cookie(struct bcm43xx_pioqueue *queue,
-			   int packetindex)
+			   struct bcm43xx_pio_txpacket *packet)
 {
 	u16 cookie = 0x0000;
+	int packetindex;
 
 	/* We use the upper 4 bits for the PIO
 	 * controller ID and the lower 12 bits
@@ -135,6 +137,7 @@ static u16 generate_cookie(struct bcm43xx_pioqueue *queue,
 	default:
 		assert(0);
 	}
+	packetindex = pio_txpacket_getindex(packet);
 	assert(((u16)packetindex & 0xF000) == 0x0000);
 	cookie |= (u16)packetindex;
 
@@ -184,7 +187,7 @@ static void pio_tx_write_fragment(struct bcm43xx_pioqueue *queue,
 	bcm43xx_generate_txhdr(queue->bcm,
 			       &txhdr, skb->data, skb->len,
 			       (packet->xmitted_frags == 0),
-			       generate_cookie(queue, pio_txpacket_getindex(packet)));
+			       generate_cookie(queue, packet));
 
 	tx_start(queue);
 	octets = skb->len + sizeof(txhdr);
@@ -241,7 +244,7 @@ static int pio_tx_packet(struct bcm43xx_pio_txpacket *packet)
 		queue->tx_devq_packets++;
 		queue->tx_devq_used += octets;
 
-		assert(packet->xmitted_frags <= packet->txb->nr_frags);
+		assert(packet->xmitted_frags < packet->txb->nr_frags);
 		packet->xmitted_frags++;
 		packet->xmitted_octets += octets;
 	}
@@ -257,8 +260,14 @@ static void tx_tasklet(unsigned long d)
 	unsigned long flags;
 	struct bcm43xx_pio_txpacket *packet, *tmp_packet;
 	int err;
+	u16 txctl;
 
 	bcm43xx_lock_mmio(bcm, flags);
+
+	txctl = bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL);
+	if (txctl & BCM43xx_PIO_TXCTL_SUSPEND)
+		goto out_unlock;
+
 	list_for_each_entry_safe(packet, tmp_packet, &queue->txqueue, list) {
 		assert(packet->xmitted_frags < packet->txb->nr_frags);
 		if (packet->xmitted_frags == 0) {
@@ -288,6 +297,7 @@ static void tx_tasklet(unsigned long d)
 	next_packet:
 		continue;
 	}
+out_unlock:
 	bcm43xx_unlock_mmio(bcm, flags);
 }
 
@@ -330,12 +340,19 @@ struct bcm43xx_pioqueue * bcm43xx_setup_pioqueue(struct bcm43xx_private *bcm,
 		     (unsigned long)queue);
 
 	value = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
-	value |= BCM43xx_SBF_XFER_REG_BYTESWAP;
+	value &= ~BCM43xx_SBF_XFER_REG_BYTESWAP;
 	bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, value);
 
 	qsize = bcm43xx_read16(bcm, queue->mmio_base + BCM43xx_PIO_TXQBUFSIZE);
+	if (qsize == 0) {
+		printk(KERN_ERR PFX "ERROR: This card does not support PIO "
+				    "operation mode. Please use DMA mode "
+				    "(module parameter pio=0).\n");
+		goto err_freequeue;
+	}
 	if (qsize <= BCM43xx_PIO_TXQADJUST) {
-		printk(KERN_ERR PFX "PIO tx device-queue too small (%u)\n", qsize);
+		printk(KERN_ERR PFX "PIO tx device-queue too small (%u)\n",
+		       qsize);
 		goto err_freequeue;
 	}
 	qsize -= BCM43xx_PIO_TXQADJUST;
@@ -444,15 +461,10 @@ int bcm43xx_pio_tx(struct bcm43xx_private *bcm,
 {
 	struct bcm43xx_pioqueue *queue = bcm43xx_current_pio(bcm)->queue1;
 	struct bcm43xx_pio_txpacket *packet;
-	u16 tmp;
 
 	assert(!queue->tx_suspended);
 	assert(!list_empty(&queue->txfree));
 
-	tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL);
-	if (tmp & BCM43xx_PIO_TXCTL_SUSPEND)
-		return -EBUSY;
-
 	packet = list_entry(queue->txfree.next, struct bcm43xx_pio_txpacket, list);
 	packet->txb = txb;
 	packet->xmitted_frags = 0;
@@ -462,7 +474,7 @@ int bcm43xx_pio_tx(struct bcm43xx_private *bcm,
 	assert(queue->nr_txfree < BCM43xx_PIO_MAXTXPACKETS);
 
 	/* Suspend TX, if we are out of packets in the "free" queue. */
-	if (unlikely(list_empty(&queue->txfree))) {
+	if (list_empty(&queue->txfree)) {
 		netif_stop_queue(queue->bcm->net_dev);
 		queue->tx_suspended = 1;
 	}
@@ -480,15 +492,15 @@ void bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
 
 	queue = parse_cookie(bcm, status->cookie, &packet);
 	assert(queue);
-//TODO
-if (!queue)
-return;
+
 	free_txpacket(packet, 1);
-	if (unlikely(queue->tx_suspended)) {
+	if (queue->tx_suspended) {
 		queue->tx_suspended = 0;
 		netif_wake_queue(queue->bcm->net_dev);
 	}
-	/* If there are packets on the txqueue, poke the tasklet. */
+	/* If there are packets on the txqueue, poke the tasklet
+	 * to transmit them.
+	 */
 	if (!list_empty(&queue->txqueue))
 		tasklet_schedule(&queue->txtask);
 }
@@ -519,12 +531,9 @@ void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue)
 	int i, preamble_readwords;
 	struct sk_buff *skb;
 
-return;
 	tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXCTL);
-	if (!(tmp & BCM43xx_PIO_RXCTL_DATAAVAILABLE)) {
-		dprintkl(KERN_ERR PFX "PIO RX: No data available\n");//TODO: remove this printk.
+	if (!(tmp & BCM43xx_PIO_RXCTL_DATAAVAILABLE))
 		return;
-	}
 	bcm43xx_pio_write(queue, BCM43xx_PIO_RXCTL,
 			  BCM43xx_PIO_RXCTL_DATAAVAILABLE);
 
@@ -538,8 +547,7 @@ return;
 	return;
 data_ready:
 
-//FIXME: endianess in this function.
-	len = le16_to_cpu(bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA));
+	len = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
 	if (unlikely(len > 0x700)) {
 		pio_rx_error(queue, 0, "len > 0x700");
 		return;
@@ -555,7 +563,7 @@ data_ready:
 		preamble_readwords = 18 / sizeof(u16);
 	for (i = 0; i < preamble_readwords; i++) {
 		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
-		preamble[i + 1] = cpu_to_be16(tmp);//FIXME?
+		preamble[i + 1] = cpu_to_le16(tmp);
 	}
 	rxhdr = (struct bcm43xx_rxhdr *)preamble;
 	rxflags2 = le16_to_cpu(rxhdr->flags2);
@@ -591,16 +599,40 @@ data_ready:
 	}
 	skb_put(skb, len);
 	for (i = 0; i < len - 1; i += 2) {
-		tmp = cpu_to_be16(bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA));
-		*((u16 *)(skb->data + i)) = tmp;
+		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
+		*((u16 *)(skb->data + i)) = cpu_to_le16(tmp);
 	}
 	if (len % 2) {
 		tmp = bcm43xx_pio_read(queue, BCM43xx_PIO_RXDATA);
 		skb->data[len - 1] = (tmp & 0x00FF);
+/* The specs say the following is required, but
+ * it is wrong and corrupts the PLCP. If we don't do
+ * this, the PLCP seems to be correct. So ifdef it out for now.
+ */
+#if 0
 		if (rxflags2 & BCM43xx_RXHDR_FLAGS2_TYPE2FRAME)
-			skb->data[0x20] = (tmp & 0xFF00) >> 8;
+			skb->data[2] = (tmp & 0xFF00) >> 8;
 		else
-			skb->data[0x1E] = (tmp & 0xFF00) >> 8;
+			skb->data[0] = (tmp & 0xFF00) >> 8;
+#endif
 	}
+	skb_trim(skb, len - IEEE80211_FCS_LEN);
 	bcm43xx_rx(queue->bcm, skb, rxhdr);
 }
+
+void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue)
+{
+	bcm43xx_power_saving_ctl_bits(queue->bcm, -1, 1);
+	bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
+			  bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL)
+			  | BCM43xx_PIO_TXCTL_SUSPEND);
+}
+
+void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue)
+{
+	bcm43xx_pio_write(queue, BCM43xx_PIO_TXCTL,
+			  bcm43xx_pio_read(queue, BCM43xx_PIO_TXCTL)
+			  & ~BCM43xx_PIO_TXCTL_SUSPEND);
+	bcm43xx_power_saving_ctl_bits(queue->bcm, -1, -1);
+	tasklet_schedule(&queue->txtask);
+}
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_pio.h b/drivers/net/wireless/bcm43xx/bcm43xx_pio.h
index 970627bc1769..dfc78209e3a3 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_pio.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_pio.h
@@ -14,8 +14,8 @@
 #define BCM43xx_PIO_RXCTL		0x08
 #define BCM43xx_PIO_RXDATA		0x0A
 
-#define BCM43xx_PIO_TXCTL_WRITEHI	(1 << 0)
-#define BCM43xx_PIO_TXCTL_WRITELO	(1 << 1)
+#define BCM43xx_PIO_TXCTL_WRITELO	(1 << 0)
+#define BCM43xx_PIO_TXCTL_WRITEHI	(1 << 1)
 #define BCM43xx_PIO_TXCTL_COMPLETE	(1 << 2)
 #define BCM43xx_PIO_TXCTL_INIT		(1 << 3)
 #define BCM43xx_PIO_TXCTL_SUSPEND	(1 << 7)
@@ -95,6 +95,7 @@ void bcm43xx_pio_write(struct bcm43xx_pioqueue *queue,
 		       u16 offset, u16 value)
 {
 	bcm43xx_write16(queue->bcm, queue->mmio_base + offset, value);
+	mmiowb();
 }
 
 
@@ -107,6 +108,9 @@ void bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
 				   struct bcm43xx_xmitstatus *status);
 void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue);
 
+void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue);
+void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue);
+
 #else /* CONFIG_BCM43XX_PIO */
 
 static inline
@@ -133,6 +137,14 @@ static inline
 void bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue)
 {
 }
+static inline
+void bcm43xx_pio_tx_suspend(struct bcm43xx_pioqueue *queue)
+{
+}
+static inline
+void bcm43xx_pio_tx_resume(struct bcm43xx_pioqueue *queue)
+{
+}
 
 #endif /* CONFIG_BCM43XX_PIO */
 #endif /* BCM43xx_PIO_H_ */

From bcb49197ed9a2e8a0a8d990723dccfccffa7566f Mon Sep 17 00:00:00 2001
From: Auke Kok <auke-jan.h.kok@intel.com>
Date: Tue, 25 Apr 2006 22:50:04 -0700
Subject: [PATCH 06/12] e1000: Update truesize with the length of the packet
 for packet split

Update skb with the real packet size.


Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
---
 drivers/net/e1000/e1000_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index add8dc4aa7b0..c99e87838f92 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -3768,6 +3768,7 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
 			ps_page->ps_page[j] = NULL;
 			skb->len += length;
 			skb->data_len += length;
+			skb->truesize += length;
 		}
 
 copydone:

From 734cbc363b159caee158d5a83408c72d98bcacf0 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 25 Apr 2006 10:58:50 -0700
Subject: [PATCH 07/12] [PATCH] sky2: reschedule if irq still pending

This is a workaround for the case edge-triggered irq's. Several users
seem to have broken configurations sharing edge-triggered irq's. To avoid
losing IRQ's, reshedule if more work arrives.

The changes to netdevice.h are to extract the part that puts device
back in list into separate inline.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/sky2.c        | 20 ++++++++++++++++----
 include/linux/netdevice.h | 18 ++++++++++--------
 2 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 67b0eab16589..618fde8622ca 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2093,6 +2093,7 @@ static int sky2_poll(struct net_device *dev0, int *budget)
 	int work_done = 0;
 	u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
 
+ restart_poll:
 	if (unlikely(status & ~Y2_IS_STAT_BMU)) {
 		if (status & Y2_IS_HW_ERR)
 			sky2_hw_intr(hw);
@@ -2123,7 +2124,7 @@ static int sky2_poll(struct net_device *dev0, int *budget)
 	}
 
 	if (status & Y2_IS_STAT_BMU) {
-		work_done = sky2_status_intr(hw, work_limit);
+		work_done += sky2_status_intr(hw, work_limit - work_done);
 		*budget -= work_done;
 		dev0->quota -= work_done;
 
@@ -2133,9 +2134,22 @@ static int sky2_poll(struct net_device *dev0, int *budget)
 		sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
 	}
 
-	netif_rx_complete(dev0);
+	local_irq_disable();
+	__netif_rx_complete(dev0);
 
 	status = sky2_read32(hw, B0_Y2_SP_LISR);
+
+	if (unlikely(status)) {
+		/* More work pending, try and keep going */
+		if (__netif_rx_schedule_prep(dev0)) {
+			__netif_rx_reschedule(dev0, work_done);
+			status = sky2_read32(hw, B0_Y2_SP_EISR);
+			local_irq_enable();
+			goto restart_poll;
+		}
+	}
+
+	local_irq_enable();
 	return 0;
 }
 
@@ -2153,8 +2167,6 @@ static irqreturn_t sky2_intr(int irq, void *dev_id, struct pt_regs *regs)
 	prefetch(&hw->st_le[hw->st_idx]);
 	if (likely(__netif_rx_schedule_prep(dev0)))
 		__netif_rx_schedule(dev0);
-	else
-		printk(KERN_DEBUG PFX "irq race detected\n");
 
 	return IRQ_HANDLED;
 }
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 40ccf8cc4239..01db7b88a2b1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -829,19 +829,21 @@ static inline void netif_rx_schedule(struct net_device *dev)
 		__netif_rx_schedule(dev);
 }
 
-/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete().
- * Do not inline this?
- */
+
+static inline void  __netif_rx_reschedule(struct net_device *dev, int undo)
+{
+	dev->quota += undo;
+	list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
+	__raise_softirq_irqoff(NET_RX_SOFTIRQ);
+}
+
+/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete(). */
 static inline int netif_rx_reschedule(struct net_device *dev, int undo)
 {
 	if (netif_rx_schedule_prep(dev)) {
 		unsigned long flags;
-
-		dev->quota += undo;
-
 		local_irq_save(flags);
-		list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
-		__raise_softirq_irqoff(NET_RX_SOFTIRQ);
+		__netif_rx_reschedule(dev, undo);
 		local_irq_restore(flags);
 		return 1;
 	}

From d27ed38765d6e01eaab443a7909f53a37f090e99 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 25 Apr 2006 10:58:51 -0700
Subject: [PATCH 08/12] [PATCH] sky2: add fake idle irq timer

Add an fake NAPI schedule once a second. This is an attempt to work around
for broken configurations with edge-triggered interrupts.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/sky2.c | 22 +++++++++++++++++++++-
 drivers/net/sky2.h |  2 ++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 618fde8622ca..6673ddf763a4 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2086,6 +2086,20 @@ static void sky2_descriptor_error(struct sky2_hw *hw, unsigned port,
 	}
 }
 
+/* If idle then force a fake soft NAPI poll once a second
+ * to work around cases where sharing an edge triggered interrupt.
+ */
+static void sky2_idle(unsigned long arg)
+{
+	struct net_device *dev = (struct net_device *) arg;
+
+	local_irq_disable();
+	if (__netif_rx_schedule_prep(dev))
+		__netif_rx_schedule(dev);
+	local_irq_enable();
+}
+
+
 static int sky2_poll(struct net_device *dev0, int *budget)
 {
 	struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
@@ -2134,6 +2148,8 @@ static int sky2_poll(struct net_device *dev0, int *budget)
 		sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
 	}
 
+	mod_timer(&hw->idle_timer, jiffies + HZ);
+
 	local_irq_disable();
 	__netif_rx_complete(dev0);
 
@@ -3288,6 +3304,8 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
 
 	sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
 
+	setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) dev);
+
 	pci_set_drvdata(pdev, hw);
 
 	return 0;
@@ -3323,13 +3341,15 @@ static void __devexit sky2_remove(struct pci_dev *pdev)
 	if (!hw)
 		return;
 
+	del_timer_sync(&hw->idle_timer);
+
+	sky2_write32(hw, B0_IMSK, 0);
 	dev0 = hw->dev[0];
 	dev1 = hw->dev[1];
 	if (dev1)
 		unregister_netdev(dev1);
 	unregister_netdev(dev0);
 
-	sky2_write32(hw, B0_IMSK, 0);
 	sky2_set_power_state(hw, PCI_D3hot);
 	sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
 	sky2_write8(hw, B0_CTST, CS_RST_SET);
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index 89dd18cd12f0..b026f5653f04 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -1880,6 +1880,8 @@ struct sky2_hw {
 	struct sky2_status_le *st_le;
 	u32		     st_idx;
 	dma_addr_t   	     st_dma;
+
+	struct timer_list    idle_timer;
 	int		     msi_detected;
 	wait_queue_head_t    msi_wait;
 };

From 4a15d56f78936ec15a5d747546f25ace8fef9a03 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 25 Apr 2006 10:58:52 -0700
Subject: [PATCH 09/12] [PATCH] sky2: use ALIGN() macro

The ALIGN() macro in kernel.h does the same math that the
sky2 driver was using for padding.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/sky2.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 6673ddf763a4..393ee635b6c4 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -925,8 +925,7 @@ static inline struct sk_buff *sky2_alloc_skb(unsigned int size, gfp_t gfp_mask)
 	skb = alloc_skb(size + RX_SKB_ALIGN, gfp_mask);
 	if (likely(skb)) {
 		unsigned long p	= (unsigned long) skb->data;
-		skb_reserve(skb,
-			((p + RX_SKB_ALIGN - 1) & ~(RX_SKB_ALIGN - 1)) - p);
+		skb_reserve(skb, ALIGN(p, RX_SKB_ALIGN) - p);
 	}
 
 	return skb;
@@ -1686,13 +1685,12 @@ static void sky2_tx_timeout(struct net_device *dev)
 }
 
 
-#define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
 /* Want receive buffer size to be multiple of 64 bits
  * and incl room for vlan and truncation
  */
 static inline unsigned sky2_buf_size(int mtu)
 {
-	return roundup(mtu + ETH_HLEN + VLAN_HLEN, 8) + 8;
+	return ALIGN(mtu + ETH_HLEN + VLAN_HLEN, 8) + 8;
 }
 
 static int sky2_change_mtu(struct net_device *dev, int new_mtu)

From 98712e5e3325247bf22a175d225526c9d5f8439b Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 25 Apr 2006 10:58:53 -0700
Subject: [PATCH 10/12] [PATCH] sky2: reset function can be devinit

The sky2_reset function only called from sky2_probe.
Maybe the compiler was smart enough to figure this out already.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/sky2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 393ee635b6c4..ce1a8afc3313 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2219,7 +2219,7 @@ static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
 }
 
 
-static int sky2_reset(struct sky2_hw *hw)
+static int __devinit sky2_reset(struct sky2_hw *hw)
 {
 	u16 status;
 	u8 t8, pmd_type;

From bdf9c27d020ba50b42949c383c1956216c9fd522 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 25 Apr 2006 10:58:54 -0700
Subject: [PATCH 11/12] [PATCH] sky2: version 1.2

Update to version 1.2

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/sky2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index ce1a8afc3313..227df9876a2c 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -51,7 +51,7 @@
 #include "sky2.h"
 
 #define DRV_NAME		"sky2"
-#define DRV_VERSION		"1.1"
+#define DRV_VERSION		"1.2"
 #define PFX			DRV_NAME " "
 
 /*

From 86a0f04387bfa814618bf0c2c8b203899c4fa5d2 Mon Sep 17 00:00:00 2001
From: Ayaz Abdulla <aabdulla@nvidia.com>
Date: Mon, 24 Apr 2006 18:41:31 -0400
Subject: [PATCH 12/12] [PATCH] forcedeth: fix initialization

This patch fixes the nic initialization. If the nic was in low power
mode, it brings it back to normal power. Also, it utilizes a new
hardware reset during the init.

I am resending based on feedback, I corrected the register size mapping
and delay after posted write.

Signed-Off-By: Ayaz Abdulla <aabdulla@nvidia.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
 drivers/net/forcedeth.c | 79 ++++++++++++++++++++++++++++++++++-------
 1 file changed, 67 insertions(+), 12 deletions(-)

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 7627a75f4f7c..9788b1ef2e7d 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -105,6 +105,7 @@
  *	0.50: 20 Jan 2006: Add 8021pq tagging support.
  *	0.51: 20 Jan 2006: Add 64bit consistent memory allocation for rings.
  *	0.52: 20 Jan 2006: Add MSI/MSIX support.
+ *	0.53: 19 Mar 2006: Fix init from low power mode and add hw reset.
  *
  * Known bugs:
  * We suspect that on some hardware no TX done interrupts are generated.
@@ -116,7 +117,7 @@
  * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
  * superfluous timer interrupts from the nic.
  */
-#define FORCEDETH_VERSION		"0.52"
+#define FORCEDETH_VERSION		"0.53"
 #define DRV_NAME			"forcedeth"
 
 #include <linux/module.h>
@@ -160,6 +161,7 @@
 #define DEV_HAS_VLAN            0x0020  /* device supports vlan tagging and striping */
 #define DEV_HAS_MSI             0x0040  /* device supports MSI */
 #define DEV_HAS_MSI_X           0x0080  /* device supports MSI-X */
+#define DEV_HAS_POWER_CNTRL     0x0100  /* device supports power savings */
 
 enum {
 	NvRegIrqStatus = 0x000,
@@ -203,6 +205,8 @@ enum {
 #define NVREG_MISC1_HD		0x02
 #define NVREG_MISC1_FORCE	0x3b0f3c
 
+	NvRegMacReset = 0x3c,
+#define NVREG_MAC_RESET_ASSERT	0x0F3
 	NvRegTransmitterControl = 0x084,
 #define NVREG_XMITCTL_START	0x01
 	NvRegTransmitterStatus = 0x088,
@@ -326,6 +330,10 @@ enum {
 	NvRegMSIXMap0 = 0x3e0,
 	NvRegMSIXMap1 = 0x3e4,
 	NvRegMSIXIrqStatus = 0x3f0,
+
+	NvRegPowerState2 = 0x600,
+#define NVREG_POWERSTATE2_POWERUP_MASK		0x0F11
+#define NVREG_POWERSTATE2_POWERUP_REV_A3	0x0001
 };
 
 /* Big endian: should work, but is untested */
@@ -414,7 +422,8 @@ typedef union _ring_type {
 #define NV_RX3_VLAN_TAG_MASK	(0x0000FFFF)
 
 /* Miscelaneous hardware related defines: */
-#define NV_PCI_REGSZ		0x270
+#define NV_PCI_REGSZ_VER1      	0x270
+#define NV_PCI_REGSZ_VER2      	0x604
 
 /* various timeout delays: all in usec */
 #define NV_TXRX_RESET_DELAY	4
@@ -431,6 +440,7 @@ typedef union _ring_type {
 #define NV_MIIBUSY_DELAY	50
 #define NV_MIIPHY_DELAY	10
 #define NV_MIIPHY_DELAYMAX	10000
+#define NV_MAC_RESET_DELAY	64
 
 #define NV_WAKEUPPATTERNS	5
 #define NV_WAKEUPMASKENTRIES	4
@@ -552,6 +562,8 @@ struct fe_priv {
 	u32 desc_ver;
 	u32 txrxctl_bits;
 	u32 vlanctl_bits;
+	u32 driver_data;
+	u32 register_size;
 
 	void __iomem *base;
 
@@ -919,6 +931,24 @@ static void nv_txrx_reset(struct net_device *dev)
 	pci_push(base);
 }
 
+static void nv_mac_reset(struct net_device *dev)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	u8 __iomem *base = get_hwbase(dev);
+
+	dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name);
+	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
+	pci_push(base);
+	writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset);
+	pci_push(base);
+	udelay(NV_MAC_RESET_DELAY);
+	writel(0, base + NvRegMacReset);
+	pci_push(base);
+	udelay(NV_MAC_RESET_DELAY);
+	writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
+	pci_push(base);
+}
+
 /*
  * nv_get_stats: dev->get_stats function
  * Get latest stats value from the nic.
@@ -1331,7 +1361,7 @@ static void nv_tx_timeout(struct net_device *dev)
 				dev->name, (unsigned long)np->ring_addr,
 				np->next_tx, np->nic_tx);
 		printk(KERN_INFO "%s: Dumping tx registers\n", dev->name);
-		for (i=0;i<0x400;i+= 32) {
+		for (i=0;i<=np->register_size;i+= 32) {
 			printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
 					i,
 					readl(base + i + 0), readl(base + i + 4),
@@ -2488,11 +2518,11 @@ static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
 }
 
 #define FORCEDETH_REGS_VER	1
-#define FORCEDETH_REGS_SIZE	0x400 /* 256 32-bit registers */
 
 static int nv_get_regs_len(struct net_device *dev)
 {
-	return FORCEDETH_REGS_SIZE;
+	struct fe_priv *np = netdev_priv(dev);
+	return np->register_size;
 }
 
 static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
@@ -2504,7 +2534,7 @@ static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void
 
 	regs->version = FORCEDETH_REGS_VER;
 	spin_lock_irq(&np->lock);
-	for (i=0;i<FORCEDETH_REGS_SIZE/sizeof(u32);i++)
+	for (i = 0;i <= np->register_size/sizeof(u32); i++)
 		rbuf[i] = readl(base + i*sizeof(u32));
 	spin_unlock_irq(&np->lock);
 }
@@ -2608,6 +2638,8 @@ static int nv_open(struct net_device *dev)
 	dprintk(KERN_DEBUG "nv_open: begin\n");
 
 	/* 1) erase previous misconfiguration */
+	if (np->driver_data & DEV_HAS_POWER_CNTRL)
+		nv_mac_reset(dev);
 	/* 4.1-1: stop adapter: ignored, 4.3 seems to be overkill */
 	writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
 	writel(0, base + NvRegMulticastAddrB);
@@ -2878,6 +2910,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	unsigned long addr;
 	u8 __iomem *base;
 	int err, i;
+	u32 powerstate;
 
 	dev = alloc_etherdev(sizeof(struct fe_priv));
 	err = -ENOMEM;
@@ -2910,6 +2943,11 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	if (err < 0)
 		goto out_disable;
 
+	if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL))
+		np->register_size = NV_PCI_REGSZ_VER2;
+	else
+		np->register_size = NV_PCI_REGSZ_VER1;
+
 	err = -EINVAL;
 	addr = 0;
 	for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
@@ -2918,7 +2956,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 				pci_resource_len(pci_dev, i),
 				pci_resource_flags(pci_dev, i));
 		if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM &&
-				pci_resource_len(pci_dev, i) >= NV_PCI_REGSZ) {
+				pci_resource_len(pci_dev, i) >= np->register_size) {
 			addr = pci_resource_start(pci_dev, i);
 			break;
 		}
@@ -2929,6 +2967,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		goto out_relreg;
 	}
 
+	/* copy of driver data */
+	np->driver_data = id->driver_data;
+
 	/* handle different descriptor versions */
 	if (id->driver_data & DEV_HAS_HIGH_DMA) {
 		/* packet format 3: supports 40-bit addressing */
@@ -2986,7 +3027,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	}
 
 	err = -ENOMEM;
-	np->base = ioremap(addr, NV_PCI_REGSZ);
+	np->base = ioremap(addr, np->register_size);
 	if (!np->base)
 		goto out_relreg;
 	dev->base_addr = (unsigned long)np->base;
@@ -3062,6 +3103,20 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	writel(0, base + NvRegWakeUpFlags);
 	np->wolenabled = 0;
 
+	if (id->driver_data & DEV_HAS_POWER_CNTRL) {
+		u8 revision_id;
+		pci_read_config_byte(pci_dev, PCI_REVISION_ID, &revision_id);
+
+		/* take phy and nic out of low power mode */
+		powerstate = readl(base + NvRegPowerState2);
+		powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
+		if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 ||
+		     id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) &&
+		    revision_id >= 0xA3)
+			powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3;
+		writel(powerstate, base + NvRegPowerState2);
+	}
+
 	if (np->desc_ver == DESC_VER_1) {
 		np->tx_flags = NV_TX_VALID;
 	} else {
@@ -3223,19 +3278,19 @@ static struct pci_device_id pci_tbl[] = {
 	},
 	{	/* MCP51 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL,
 	},
 	{	/* MCP51 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL,
 	},
 	{	/* MCP55 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL,
 	},
 	{	/* MCP55 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL,
 	},
 	{0,},
 };