Merge branch 'linus' into tracing/hw-breakpoints

Conflicts:
	arch/x86/kernel/process_64.c

Semantic conflict fixed in:
	arch/x86/kvm/x86.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 36 insertions, 43 deletions

diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index d737f6b8f87..d1298e5b72c 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -23,9 +23,9 @@
  */
 
 #ifdef TC35815_NAPI
-#define DRV_VERSION	"1.37-NAPI"
+#define DRV_VERSION	"1.38-NAPI"
 #else
-#define DRV_VERSION	"1.37"
+#define DRV_VERSION	"1.38"
 #endif
 static const char *version = "tc35815.c:v" DRV_VERSION "\n";
 #define MODNAME			"tc35815"
@@ -341,8 +341,9 @@ struct BDesc {
 	Tx_EnExColl | Tx_EnLCarr | Tx_EnExDefer | Tx_EnUnder | \
 	Tx_En)	/* maybe  0x7b01 */
 #endif
+/* Do not use Rx_StripCRC -- it causes trouble on BLEx/FDAEx condition */
 #define RX_CTL_CMD	(Rx_EnGood | Rx_EnRxPar | Rx_EnLongErr | Rx_EnOver \
-	| Rx_EnCRCErr | Rx_EnAlign | Rx_StripCRC | Rx_RxEn) /* maybe 0x6f11 */
+	| Rx_EnCRCErr | Rx_EnAlign | Rx_RxEn) /* maybe 0x6f01 */
 #define INT_EN_CMD  (Int_NRAbtEn | \
 	Int_DmParErrEn | Int_DParDEn | Int_DParErrEn | \
 	Int_SSysErrEn  | Int_RMasAbtEn | Int_RTargAbtEn | \
@@ -593,9 +594,10 @@ static int tc_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
 	struct net_device *dev = bus->priv;
 	struct tc35815_regs __iomem *tr =
 		(struct tc35815_regs __iomem *)dev->base_addr;
-	unsigned long timeout = jiffies + 10;
+	unsigned long timeout = jiffies + HZ;
 
 	tc_writel(MD_CA_Busy | (mii_id << 5) | (regnum & 0x1f), &tr->MD_CA);
+	udelay(12); /* it takes 32 x 400ns at least */
 	while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
 		if (time_after(jiffies, timeout))
 			return -EIO;
@@ -609,11 +611,12 @@ static int tc_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 val)
 	struct net_device *dev = bus->priv;
 	struct tc35815_regs __iomem *tr =
 		(struct tc35815_regs __iomem *)dev->base_addr;
-	unsigned long timeout = jiffies + 10;
+	unsigned long timeout = jiffies + HZ;
 
 	tc_writel(val, &tr->MD_Data);
 	tc_writel(MD_CA_Busy | MD_CA_Wr | (mii_id << 5) | (regnum & 0x1f),
 		  &tr->MD_CA);
+	udelay(12); /* it takes 32 x 400ns at least */
 	while (tc_readl(&tr->MD_CA) & MD_CA_Busy) {
 		if (time_after(jiffies, timeout))
 			return -EIO;
@@ -1509,7 +1512,7 @@ static int tc35815_send_packet(struct sk_buff *skb, struct net_device *dev)
 	 */
 
 	spin_unlock_irqrestore(&lp->lock, flags);
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 #define FATAL_ERROR_INT \
@@ -1540,8 +1543,6 @@ static int tc35815_do_interrupt(struct net_device *dev, u32 status)
 #endif
 {
 	struct tc35815_local *lp = netdev_priv(dev);
-	struct tc35815_regs __iomem *tr =
-		(struct tc35815_regs __iomem *)dev->base_addr;
 	int ret = -1;
 
 	/* Fatal errors... */
@@ -1551,27 +1552,26 @@ static int tc35815_do_interrupt(struct net_device *dev, u32 status)
 	}
 	/* recoverable errors */
 	if (status & Int_IntFDAEx) {
-		/* disable FDAEx int. (until we make rooms...) */
-		tc_writel(tc_readl(&tr->Int_En) & ~Int_FDAExEn, &tr->Int_En);
-		printk(KERN_WARNING
-		       "%s: Free Descriptor Area Exhausted (%#x).\n",
-		       dev->name, status);
+		if (netif_msg_rx_err(lp))
+			dev_warn(&dev->dev,
+				 "Free Descriptor Area Exhausted (%#x).\n",
+				 status);
 		dev->stats.rx_dropped++;
 		ret = 0;
 	}
 	if (status & Int_IntBLEx) {
-		/* disable BLEx int. (until we make rooms...) */
-		tc_writel(tc_readl(&tr->Int_En) & ~Int_BLExEn, &tr->Int_En);
-		printk(KERN_WARNING
-		       "%s: Buffer List Exhausted (%#x).\n",
-		       dev->name, status);
+		if (netif_msg_rx_err(lp))
+			dev_warn(&dev->dev,
+				 "Buffer List Exhausted (%#x).\n",
+				 status);
 		dev->stats.rx_dropped++;
 		ret = 0;
 	}
 	if (status & Int_IntExBD) {
-		printk(KERN_WARNING
-		       "%s: Excessive Buffer Descriptiors (%#x).\n",
-		       dev->name, status);
+		if (netif_msg_rx_err(lp))
+			dev_warn(&dev->dev,
+				 "Excessive Buffer Descriptiors (%#x).\n",
+				 status);
 		dev->stats.rx_length_errors++;
 		ret = 0;
 	}
@@ -1630,8 +1630,12 @@ static irqreturn_t tc35815_interrupt(int irq, void *dev_id)
 
 	spin_lock(&lp->lock);
 	status = tc_readl(&tr->Int_Src);
-	tc_writel(status, &tr->Int_Src);	/* write to clear */
+	/* BLEx, FDAEx will be cleared later */
+	tc_writel(status & ~(Int_BLEx | Int_FDAEx),
+		  &tr->Int_Src);	/* write to clear */
 	handled = tc35815_do_interrupt(dev, status);
+	if (status & (Int_BLEx | Int_FDAEx))
+		tc_writel(status & (Int_BLEx | Int_FDAEx), &tr->Int_Src);
 	(void)tc_readl(&tr->Int_Src);	/* flush */
 	spin_unlock(&lp->lock);
 	return IRQ_RETVAL(handled >= 0);
@@ -1659,8 +1663,6 @@ tc35815_rx(struct net_device *dev)
 	struct tc35815_local *lp = netdev_priv(dev);
 	unsigned int fdctl;
 	int i;
-	int buf_free_count = 0;
-	int fd_free_count = 0;
 #ifdef TC35815_NAPI
 	int received = 0;
 #endif
@@ -1769,8 +1771,9 @@ tc35815_rx(struct net_device *dev)
 			dev->stats.rx_bytes += pkt_len;
 		} else {
 			dev->stats.rx_errors++;
-			printk(KERN_DEBUG "%s: Rx error (status %x)\n",
-			       dev->name, status & Rx_Stat_Mask);
+			if (netif_msg_rx_err(lp))
+				dev_info(&dev->dev, "Rx error (status %x)\n",
+					 status & Rx_Stat_Mask);
 			/* WORKAROUND: LongErr and CRCErr means Overflow. */
 			if ((status & Rx_LongErr) && (status & Rx_CRCErr)) {
 				status &= ~(Rx_LongErr|Rx_CRCErr);
@@ -1848,7 +1851,6 @@ tc35815_rx(struct net_device *dev)
 #else
 				lp->fbl_count++;
 #endif
-				buf_free_count++;
 			}
 		}
 
@@ -1870,7 +1872,6 @@ tc35815_rx(struct net_device *dev)
 #endif
 			lp->rfd_cur->fd.FDCtl = cpu_to_le32(FD_CownsFD);
 			lp->rfd_cur++;
-			fd_free_count++;
 		}
 		if (lp->rfd_cur > lp->rfd_limit)
 			lp->rfd_cur = lp->rfd_base;
@@ -1881,17 +1882,6 @@ tc35815_rx(struct net_device *dev)
 #endif
 	}
 
-	/* re-enable BL/FDA Exhaust interrupts. */
-	if (fd_free_count) {
-		struct tc35815_regs __iomem *tr =
-			(struct tc35815_regs __iomem *)dev->base_addr;
-		u32 en, en_old = tc_readl(&tr->Int_En);
-		en = en_old | Int_FDAExEn;
-		if (buf_free_count)
-			en |= Int_BLExEn;
-		if (en != en_old)
-			tc_writel(en, &tr->Int_En);
-	}
 #ifdef TC35815_NAPI
 	return received;
 #endif
@@ -1910,9 +1900,14 @@ static int tc35815_poll(struct napi_struct *napi, int budget)
 	spin_lock(&lp->lock);
 	status = tc_readl(&tr->Int_Src);
 	do {
-		tc_writel(status, &tr->Int_Src);	/* write to clear */
+		/* BLEx, FDAEx will be cleared later */
+		tc_writel(status & ~(Int_BLEx | Int_FDAEx),
+			  &tr->Int_Src);	/* write to clear */
 
 		handled = tc35815_do_interrupt(dev, status, budget - received);
+		if (status & (Int_BLEx | Int_FDAEx))
+			tc_writel(status & (Int_BLEx | Int_FDAEx),
+				  &tr->Int_Src);
 		if (handled >= 0) {
 			received += handled;
 			if (received >= budget)
@@ -2144,7 +2139,7 @@ static struct net_device_stats *tc35815_get_stats(struct net_device *dev)
 		(struct tc35815_regs __iomem *)dev->base_addr;
 	if (netif_running(dev))
 		/* Update the statistics from the device registers. */
-		dev->stats.rx_missed_errors = tc_readl(&tr->Miss_Cnt);
+		dev->stats.rx_missed_errors += tc_readl(&tr->Miss_Cnt);
 
 	return &dev->stats;
 }
@@ -2399,8 +2394,6 @@ static void tc35815_chip_init(struct net_device *dev)
 		tc_writel(DMA_BURST_SIZE, &tr->DMA_Ctl);
 #ifdef TC35815_USE_PACKEDBUFFER
 	tc_writel(RxFrag_EnPack | ETH_ZLEN, &tr->RxFragSize);	/* Packing */
-#else
-	tc_writel(ETH_ZLEN, &tr->RxFragSize);
 #endif
 	tc_writel(0, &tr->TxPollCtr);	/* Batch mode */
 	tc_writel(TX_THRESHOLD, &tr->TxThrsh);