All of lore.kernel.org
 help / color / mirror / Atom feed
From: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
To: netdev@vger.kernel.org
Cc: Linux-sh <linux-sh@vger.kernel.org>, Paul Mundt <lethal@linux-sh.org>
Subject: [PATCH] sh_eth: Change handling of IRQ
Date: Tue, 17 Mar 2009 05:50:57 +0000	[thread overview]
Message-ID: <49BF3A41.6040309@renesas.com> (raw)

Handling of IRQ of the SH7763/SH7764 CPU which sh_eth supported was
changed.
This revises it for this change.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
---
 drivers/net/sh_eth.c |   20 +++++++++++++++++---
 1 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 7f8e514..7b18827 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -687,6 +687,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 {
 	struct net_device *ndev = netdev;
 	struct sh_eth_private *mdp = netdev_priv(ndev);
+	irqreturn_t ret = IRQ_NONE;
 	u32 ioaddr, boguscnt = RX_RING_SIZE;
 	u32 intr_status = 0;

@@ -696,7 +697,13 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 	/* Get interrpt stat */
 	intr_status = ctrl_inl(ioaddr + EESR);
 	/* Clear interrupt */
-	ctrl_outl(intr_status, ioaddr + EESR);
+	if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF |
+			EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF |
+			TX_CHECK | EESR_ERR_CHECK)) {
+		ctrl_outl(intr_status, ioaddr + EESR);
+		ret = IRQ_HANDLED;
+	} else
+		goto other_irq;

 	if (intr_status & (EESR_FRC | /* Frame recv*/
 			EESR_RMAF | /* Multi cast address recv*/
@@ -723,9 +730,10 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 		       ndev->name, intr_status);
 	}

+other_irq:
 	spin_unlock(&mdp->lock);

-	return IRQ_HANDLED;
+	return ret;
 }

 static void sh_eth_timer(unsigned long data)
@@ -844,7 +852,13 @@ static int sh_eth_open(struct net_device *ndev)
 	int ret = 0;
 	struct sh_eth_private *mdp = netdev_priv(ndev);

-	ret = request_irq(ndev->irq, &sh_eth_interrupt, 0, ndev->name, ndev);
+	ret = request_irq(ndev->irq, &sh_eth_interrupt,
+#if defined(CONFIG_CPU_SUBTYPE_SH7763) || defined(CONFIG_CPU_SUBTYPE_SH7764)
+				IRQF_SHARED,
+#else
+				0,
+#endif
+				ndev->name, ndev);
 	if (ret) {
 		printk(KERN_ERR "Can not assign IRQ number to %s\n", CARDNAME);
 		return ret;
-- 
1.6.2


WARNING: multiple messages have this Message-ID (diff)
From: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
To: netdev@vger.kernel.org
Cc: Linux-sh <linux-sh@vger.kernel.org>, Paul Mundt <lethal@linux-sh.org>
Subject: [PATCH] sh_eth: Change handling of IRQ
Date: Tue, 17 Mar 2009 14:50:57 +0900	[thread overview]
Message-ID: <49BF3A41.6040309@renesas.com> (raw)

Handling of IRQ of the SH7763/SH7764 CPU which sh_eth supported was
changed.
This revises it for this change.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
---
 drivers/net/sh_eth.c |   20 +++++++++++++++++---
 1 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 7f8e514..7b18827 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -687,6 +687,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 {
 	struct net_device *ndev = netdev;
 	struct sh_eth_private *mdp = netdev_priv(ndev);
+	irqreturn_t ret = IRQ_NONE;
 	u32 ioaddr, boguscnt = RX_RING_SIZE;
 	u32 intr_status = 0;

@@ -696,7 +697,13 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 	/* Get interrpt stat */
 	intr_status = ctrl_inl(ioaddr + EESR);
 	/* Clear interrupt */
-	ctrl_outl(intr_status, ioaddr + EESR);
+	if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF |
+			EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF |
+			TX_CHECK | EESR_ERR_CHECK)) {
+		ctrl_outl(intr_status, ioaddr + EESR);
+		ret = IRQ_HANDLED;
+	} else
+		goto other_irq;

 	if (intr_status & (EESR_FRC | /* Frame recv*/
 			EESR_RMAF | /* Multi cast address recv*/
@@ -723,9 +730,10 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
 		       ndev->name, intr_status);
 	}

+other_irq:
 	spin_unlock(&mdp->lock);

-	return IRQ_HANDLED;
+	return ret;
 }

 static void sh_eth_timer(unsigned long data)
@@ -844,7 +852,13 @@ static int sh_eth_open(struct net_device *ndev)
 	int ret = 0;
 	struct sh_eth_private *mdp = netdev_priv(ndev);

-	ret = request_irq(ndev->irq, &sh_eth_interrupt, 0, ndev->name, ndev);
+	ret = request_irq(ndev->irq, &sh_eth_interrupt,
+#if defined(CONFIG_CPU_SUBTYPE_SH7763) || defined(CONFIG_CPU_SUBTYPE_SH7764)
+				IRQF_SHARED,
+#else
+				0,
+#endif
+				ndev->name, ndev);
 	if (ret) {
 		printk(KERN_ERR "Can not assign IRQ number to %s\n", CARDNAME);
 		return ret;
-- 
1.6.2


         reply	other threads:[~2009-03-17  5:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-17  5:52 [PATCH] sh_eth: Fix mistake of the address of SH7763 Nobuhiro Iwamatsu
2009-03-17  5:52 ` Nobuhiro Iwamatsu
2009-03-17  5:50 ` Nobuhiro Iwamatsu [this message]
2009-03-17  5:50   ` [PATCH] sh_eth: Change handling of IRQ Nobuhiro Iwamatsu
2009-03-30 23:15   ` Paul Mundt
2009-03-30 23:15     ` Paul Mundt
2009-03-30 23:16     ` Paul Mundt
2009-03-30 23:16       ` Paul Mundt
2009-03-31  0:58       ` Nobuhiro Iwamatsu
2009-03-31  0:58         ` Nobuhiro Iwamatsu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=49BF3A41.6040309@renesas.com \
    --to=iwamatsu.nobuhiro@renesas.com \
    --cc=lethal@linux-sh.org \
    --cc=linux-sh@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.