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Groups > linux.kernel > #1269775 > unrolled thread

[PATCH 1/2 v2] dl2k: Add support for IP1000A-based cards

Started byOndrej Zary <linux@rainbow-software.org>
First post2015-11-15 22:40 +0100
Last post2015-11-16 23:20 +0100
Articles 4 — 3 participants

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  [PATCH 1/2 v2] dl2k: Add support for IP1000A-based cards Ondrej Zary <linux@rainbow-software.org> - 2015-11-15 22:40 +0100
    Re: [PATCH 1/2 v2] dl2k: Add support for IP1000A-based cards Andy Shevchenko <andy.shevchenko@gmail.com> - 2015-11-16 09:50 +0100
    Re: [PATCH 1/2 v2] dl2k: Add support for IP1000A-based cards David Miller <davem@davemloft.net> - 2015-11-16 23:20 +0100
    Re: [PATCH 2/2] ipg: Remove ipg driver David Miller <davem@davemloft.net> - 2015-11-16 23:20 +0100

#1269775 — [PATCH 1/2 v2] dl2k: Add support for IP1000A-based cards

FromOndrej Zary <linux@rainbow-software.org>
Date2015-11-15 22:40 +0100
Subject[PATCH 1/2 v2] dl2k: Add support for IP1000A-based cards
Message-ID<qvdbI-6N6-17@gated-at.bofh.it>
Add support for IP1000A chips to dl2k driver.
IP1000A chip looks like a TC9020 with integrated PHY.

This allows IP1000A chips to work reliably because the ipg driver is
buggy - it loses packets under load and then completely stops
transmitting data.

Tested with Asus NX1101 v2.0 at 10, 100 and 1000Mbps:
vendor=0x13f0 device=0x1023 (rev 0x41)
subsystem vendor=0x1043 device=0x8180

MAC address registers access needed to be changed from 8-bit to 16-bit
because 8-bit does not work on IP1000A. 8-bit access is not even
allowed in the TC9020 datasheet (although it worked). 16-bit access
works on both.

Tested that it does not break D-Link DGE-550T (DL-2000 chip, probably
a rebranded TC9020):
vendor=0x1186 device=0x4000 (rev 0x0c)
subsystem vendor=0x1186 device=0x4000

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
 drivers/net/ethernet/dlink/Kconfig |    5 ++--
 drivers/net/ethernet/dlink/dl2k.c  |   55 ++++++++++++++++++++++++++++++++++--
 drivers/net/ethernet/dlink/dl2k.h  |   15 +++++++++-
 3 files changed, 69 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/dlink/Kconfig b/drivers/net/ethernet/dlink/Kconfig
index f6e858d..ebdc832 100644
--- a/drivers/net/ethernet/dlink/Kconfig
+++ b/drivers/net/ethernet/dlink/Kconfig
@@ -17,15 +17,16 @@ config NET_VENDOR_DLINK
 if NET_VENDOR_DLINK
 
 config DL2K
-	tristate "DL2000/TC902x-based Gigabit Ethernet support"
+	tristate "DL2000/TC902x/IP1000A-based Gigabit Ethernet support"
 	depends on PCI
 	select CRC32
 	---help---
-	  This driver supports DL2000/TC902x-based Gigabit ethernet cards,
+	  This driver supports DL2000/TC902x/IP1000A-based Gigabit ethernet cards,
 	  which includes
 	  D-Link DGE-550T Gigabit Ethernet Adapter.
 	  D-Link DL2000-based Gigabit Ethernet Adapter.
 	  Sundance/Tamarack TC902x Gigabit Ethernet Adapter.
+	  ICPlus IP1000A-based cards
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called dl2k.
diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
index cf0a5fc..ccca479 100644
--- a/drivers/net/ethernet/dlink/dl2k.c
+++ b/drivers/net/ethernet/dlink/dl2k.c
@@ -253,6 +253,19 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		goto err_out_unmap_rx;
 
+	if (np->chip_id == CHIP_IP1000A &&
+	    (np->pdev->revision == 0x40 || np->pdev->revision == 0x41)) {
+		/* PHY magic taken from ipg driver, undocumented registers */
+		mii_write(dev, np->phy_addr, 31, 0x0001);
+		mii_write(dev, np->phy_addr, 27, 0x01e0);
+		mii_write(dev, np->phy_addr, 31, 0x0002);
+		mii_write(dev, np->phy_addr, 27, 0xeb8e);
+		mii_write(dev, np->phy_addr, 31, 0x0000);
+		mii_write(dev, np->phy_addr, 30, 0x005e);
+		/* advertise 1000BASE-T half & full duplex, prefer MASTER */
+		mii_write(dev, np->phy_addr, MII_CTRL1000, 0x0700);
+	}
+
 	/* Fiber device? */
 	np->phy_media = (dr16(ASICCtrl) & PhyMedia) ? 1 : 0;
 	np->link_status = 0;
@@ -361,6 +374,11 @@ parse_eeprom (struct net_device *dev)
 	for (i = 0; i < 6; i++)
 		dev->dev_addr[i] = psrom->mac_addr[i];
 
+	if (np->chip_id == CHIP_IP1000A) {
+		np->led_mode = psrom->led_mode;
+		return 0;
+	}
+
 	if (np->pdev->vendor != PCI_VENDOR_ID_DLINK) {
 		return 0;
 	}
@@ -406,6 +424,28 @@ parse_eeprom (struct net_device *dev)
 	return 0;
 }
 
+static void rio_set_led_mode(struct net_device *dev)
+{
+	struct netdev_private *np = netdev_priv(dev);
+	void __iomem *ioaddr = np->ioaddr;
+	u32 mode;
+
+	if (np->chip_id != CHIP_IP1000A)
+		return;
+
+	mode = dr32(ASICCtrl);
+	mode &= ~(IPG_AC_LED_MODE_BIT_1 | IPG_AC_LED_MODE | IPG_AC_LED_SPEED);
+
+	if (np->led_mode & 0x01)
+		mode |= IPG_AC_LED_MODE;
+	if (np->led_mode & 0x02)
+		mode |= IPG_AC_LED_MODE_BIT_1;
+	if (np->led_mode & 0x08)
+		mode |= IPG_AC_LED_SPEED;
+
+	dw32(ASICCtrl, mode);
+}
+
 static int
 rio_open (struct net_device *dev)
 {
@@ -424,6 +464,8 @@ rio_open (struct net_device *dev)
 	     GlobalReset | DMAReset | FIFOReset | NetworkReset | HostReset);
 	mdelay(10);
 
+	rio_set_led_mode(dev);
+
 	/* DebugCtrl bit 4, 5, 9 must set */
 	dw32(DebugCtrl, dr32(DebugCtrl) | 0x0230);
 
@@ -433,9 +475,13 @@ rio_open (struct net_device *dev)
 
 	alloc_list (dev);
 
-	/* Get station address */
-	for (i = 0; i < 6; i++)
-		dw8(StationAddr0 + i, dev->dev_addr[i]);
+	/* Set station address */
+	/* 16 or 32-bit access is required by TC9020 datasheet but 8-bit works
+	 * too. However, it doesn't work on IP1000A so we use 16-bit access.
+	 */
+	for (i = 0; i < 3; i++)
+		dw16(StationAddr0 + 2 * i,
+		     cpu_to_le16(((u16 *)dev->dev_addr)[i]));
 
 	set_multicast (dev);
 	if (np->coalesce) {
@@ -780,6 +826,7 @@ tx_error (struct net_device *dev, int tx_status)
 				break;
 			mdelay (1);
 		}
+		rio_set_led_mode(dev);
 		rio_free_tx (dev, 1);
 		/* Reset TFDListPtr */
 		dw32(TFDListPtr0, np->tx_ring_dma +
@@ -799,6 +846,7 @@ tx_error (struct net_device *dev, int tx_status)
 				break;
 			mdelay (1);
 		}
+		rio_set_led_mode(dev);
 		/* Let TxStartThresh stay default value */
 	}
 	/* Maximum Collisions */
@@ -965,6 +1013,7 @@ rio_error (struct net_device *dev, int int_status)
 			dev->name, int_status);
 		dw16(ASICCtrl + 2, GlobalReset | HostReset);
 		mdelay (500);
+		rio_set_led_mode(dev);
 	}
 }
 
diff --git a/drivers/net/ethernet/dlink/dl2k.h b/drivers/net/ethernet/dlink/dl2k.h
index 23c07b0..8f4f612 100644
--- a/drivers/net/ethernet/dlink/dl2k.h
+++ b/drivers/net/ethernet/dlink/dl2k.h
@@ -211,6 +211,10 @@ enum ASICCtrl_HiWord_bits {
 	ResetBusy = 0x0400,
 };
 
+#define IPG_AC_LED_MODE		BIT(14)
+#define IPG_AC_LED_SPEED	BIT(27)
+#define IPG_AC_LED_MODE_BIT_1	BIT(29)
+
 /* Transmit Frame Control bits */
 enum TFC_bits {
 	DwordAlign = 0x00000000,
@@ -332,7 +336,10 @@ typedef struct t_SROM {
 	u16 asic_ctrl;		/* 0x02 */
 	u16 sub_vendor_id;	/* 0x04 */
 	u16 sub_system_id;	/* 0x06 */
-	u16 reserved1[12];	/* 0x08-0x1f */
+	u16 pci_base_1;		/* 0x08 (IP1000A only) */
+	u16 pci_base_2;		/* 0x0a (IP1000A only) */
+	u16 led_mode;		/* 0x0c (IP1000A only) */
+	u16 reserved1[9];	/* 0x0e-0x1f */
 	u8 mac_addr[6];		/* 0x20-0x25 */
 	u8 reserved2[10];	/* 0x26-0x2f */
 	u8 sib[204];		/* 0x30-0xfb */
@@ -397,6 +404,7 @@ struct netdev_private {
 	u16 advertising;	/* NWay media advertisement */
 	u16 negotiate;		/* Negotiated media */
 	int phy_addr;		/* PHY addresses. */
+	u16 led_mode;		/* LED mode read from EEPROM (IP1000A only) */
 };
 
 /* The station address location in the EEPROM. */
@@ -407,10 +415,15 @@ struct netdev_private {
         class_mask              of the class are honored during the comparison.
         driver_data             Data private to the driver.
 */
+#define CHIP_IP1000A	1
 
 static const struct pci_device_id rio_pci_tbl[] = {
 	{0x1186, 0x4000, PCI_ANY_ID, PCI_ANY_ID, },
 	{0x13f0, 0x1021, PCI_ANY_ID, PCI_ANY_ID, },
+	{ PCI_VDEVICE(SUNDANCE,	0x1023), CHIP_IP1000A },
+	{ PCI_VDEVICE(SUNDANCE,	0x2021), CHIP_IP1000A },
+	{ PCI_VDEVICE(DLINK,	0x9021), CHIP_IP1000A },
+	{ PCI_VDEVICE(DLINK,	0x4020), CHIP_IP1000A },
 	{ }
 };
 MODULE_DEVICE_TABLE (pci, rio_pci_tbl);
-- 
Ondrej Zary

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#1269896

FromAndy Shevchenko <andy.shevchenko@gmail.com>
Date2015-11-16 09:50 +0100
Message-ID<qvnE6-4ZZ-1@gated-at.bofh.it>
In reply to#1269775
On Sun, Nov 15, 2015 at 11:36 PM, Ondrej Zary
<linux@rainbow-software.org> wrote:
> Add support for IP1000A chips to dl2k driver.
> IP1000A chip looks like a TC9020 with integrated PHY.
>
> This allows IP1000A chips to work reliably because the ipg driver is
> buggy - it loses packets under load and then completely stops
> transmitting data.
>
> Tested with Asus NX1101 v2.0 at 10, 100 and 1000Mbps:
> vendor=0x13f0 device=0x1023 (rev 0x41)
> subsystem vendor=0x1043 device=0x8180
>
> MAC address registers access needed to be changed from 8-bit to 16-bit
> because 8-bit does not work on IP1000A. 8-bit access is not even
> allowed in the TC9020 datasheet (although it worked). 16-bit access
> works on both.
>
> Tested that it does not break D-Link DGE-550T (DL-2000 chip, probably
> a rebranded TC9020):
> vendor=0x1186 device=0x4000 (rev 0x0c)
> subsystem vendor=0x1186 device=0x4000
>

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
> ---
>  drivers/net/ethernet/dlink/Kconfig |    5 ++--
>  drivers/net/ethernet/dlink/dl2k.c  |   55 ++++++++++++++++++++++++++++++++++--
>  drivers/net/ethernet/dlink/dl2k.h  |   15 +++++++++-
>  3 files changed, 69 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/ethernet/dlink/Kconfig b/drivers/net/ethernet/dlink/Kconfig
> index f6e858d..ebdc832 100644
> --- a/drivers/net/ethernet/dlink/Kconfig
> +++ b/drivers/net/ethernet/dlink/Kconfig
> @@ -17,15 +17,16 @@ config NET_VENDOR_DLINK
>  if NET_VENDOR_DLINK
>
>  config DL2K
> -       tristate "DL2000/TC902x-based Gigabit Ethernet support"
> +       tristate "DL2000/TC902x/IP1000A-based Gigabit Ethernet support"
>         depends on PCI
>         select CRC32
>         ---help---
> -         This driver supports DL2000/TC902x-based Gigabit ethernet cards,
> +         This driver supports DL2000/TC902x/IP1000A-based Gigabit ethernet cards,
>           which includes
>           D-Link DGE-550T Gigabit Ethernet Adapter.
>           D-Link DL2000-based Gigabit Ethernet Adapter.
>           Sundance/Tamarack TC902x Gigabit Ethernet Adapter.
> +         ICPlus IP1000A-based cards
>
>           To compile this driver as a module, choose M here: the
>           module will be called dl2k.
> diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
> index cf0a5fc..ccca479 100644
> --- a/drivers/net/ethernet/dlink/dl2k.c
> +++ b/drivers/net/ethernet/dlink/dl2k.c
> @@ -253,6 +253,19 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent)
>         if (err)
>                 goto err_out_unmap_rx;
>
> +       if (np->chip_id == CHIP_IP1000A &&
> +           (np->pdev->revision == 0x40 || np->pdev->revision == 0x41)) {
> +               /* PHY magic taken from ipg driver, undocumented registers */
> +               mii_write(dev, np->phy_addr, 31, 0x0001);
> +               mii_write(dev, np->phy_addr, 27, 0x01e0);
> +               mii_write(dev, np->phy_addr, 31, 0x0002);
> +               mii_write(dev, np->phy_addr, 27, 0xeb8e);
> +               mii_write(dev, np->phy_addr, 31, 0x0000);
> +               mii_write(dev, np->phy_addr, 30, 0x005e);
> +               /* advertise 1000BASE-T half & full duplex, prefer MASTER */
> +               mii_write(dev, np->phy_addr, MII_CTRL1000, 0x0700);
> +       }
> +
>         /* Fiber device? */
>         np->phy_media = (dr16(ASICCtrl) & PhyMedia) ? 1 : 0;
>         np->link_status = 0;
> @@ -361,6 +374,11 @@ parse_eeprom (struct net_device *dev)
>         for (i = 0; i < 6; i++)
>                 dev->dev_addr[i] = psrom->mac_addr[i];
>
> +       if (np->chip_id == CHIP_IP1000A) {
> +               np->led_mode = psrom->led_mode;
> +               return 0;
> +       }
> +
>         if (np->pdev->vendor != PCI_VENDOR_ID_DLINK) {
>                 return 0;
>         }
> @@ -406,6 +424,28 @@ parse_eeprom (struct net_device *dev)
>         return 0;
>  }
>
> +static void rio_set_led_mode(struct net_device *dev)
> +{
> +       struct netdev_private *np = netdev_priv(dev);
> +       void __iomem *ioaddr = np->ioaddr;
> +       u32 mode;
> +
> +       if (np->chip_id != CHIP_IP1000A)
> +               return;
> +
> +       mode = dr32(ASICCtrl);
> +       mode &= ~(IPG_AC_LED_MODE_BIT_1 | IPG_AC_LED_MODE | IPG_AC_LED_SPEED);
> +
> +       if (np->led_mode & 0x01)
> +               mode |= IPG_AC_LED_MODE;
> +       if (np->led_mode & 0x02)
> +               mode |= IPG_AC_LED_MODE_BIT_1;
> +       if (np->led_mode & 0x08)
> +               mode |= IPG_AC_LED_SPEED;
> +
> +       dw32(ASICCtrl, mode);
> +}
> +
>  static int
>  rio_open (struct net_device *dev)
>  {
> @@ -424,6 +464,8 @@ rio_open (struct net_device *dev)
>              GlobalReset | DMAReset | FIFOReset | NetworkReset | HostReset);
>         mdelay(10);
>
> +       rio_set_led_mode(dev);
> +
>         /* DebugCtrl bit 4, 5, 9 must set */
>         dw32(DebugCtrl, dr32(DebugCtrl) | 0x0230);
>
> @@ -433,9 +475,13 @@ rio_open (struct net_device *dev)
>
>         alloc_list (dev);
>
> -       /* Get station address */
> -       for (i = 0; i < 6; i++)
> -               dw8(StationAddr0 + i, dev->dev_addr[i]);
> +       /* Set station address */
> +       /* 16 or 32-bit access is required by TC9020 datasheet but 8-bit works
> +        * too. However, it doesn't work on IP1000A so we use 16-bit access.
> +        */
> +       for (i = 0; i < 3; i++)
> +               dw16(StationAddr0 + 2 * i,
> +                    cpu_to_le16(((u16 *)dev->dev_addr)[i]));
>
>         set_multicast (dev);
>         if (np->coalesce) {
> @@ -780,6 +826,7 @@ tx_error (struct net_device *dev, int tx_status)
>                                 break;
>                         mdelay (1);
>                 }
> +               rio_set_led_mode(dev);
>                 rio_free_tx (dev, 1);
>                 /* Reset TFDListPtr */
>                 dw32(TFDListPtr0, np->tx_ring_dma +
> @@ -799,6 +846,7 @@ tx_error (struct net_device *dev, int tx_status)
>                                 break;
>                         mdelay (1);
>                 }
> +               rio_set_led_mode(dev);
>                 /* Let TxStartThresh stay default value */
>         }
>         /* Maximum Collisions */
> @@ -965,6 +1013,7 @@ rio_error (struct net_device *dev, int int_status)
>                         dev->name, int_status);
>                 dw16(ASICCtrl + 2, GlobalReset | HostReset);
>                 mdelay (500);
> +               rio_set_led_mode(dev);
>         }
>  }
>
> diff --git a/drivers/net/ethernet/dlink/dl2k.h b/drivers/net/ethernet/dlink/dl2k.h
> index 23c07b0..8f4f612 100644
> --- a/drivers/net/ethernet/dlink/dl2k.h
> +++ b/drivers/net/ethernet/dlink/dl2k.h
> @@ -211,6 +211,10 @@ enum ASICCtrl_HiWord_bits {
>         ResetBusy = 0x0400,
>  };
>
> +#define IPG_AC_LED_MODE                BIT(14)
> +#define IPG_AC_LED_SPEED       BIT(27)
> +#define IPG_AC_LED_MODE_BIT_1  BIT(29)
> +
>  /* Transmit Frame Control bits */
>  enum TFC_bits {
>         DwordAlign = 0x00000000,
> @@ -332,7 +336,10 @@ typedef struct t_SROM {
>         u16 asic_ctrl;          /* 0x02 */
>         u16 sub_vendor_id;      /* 0x04 */
>         u16 sub_system_id;      /* 0x06 */
> -       u16 reserved1[12];      /* 0x08-0x1f */
> +       u16 pci_base_1;         /* 0x08 (IP1000A only) */
> +       u16 pci_base_2;         /* 0x0a (IP1000A only) */
> +       u16 led_mode;           /* 0x0c (IP1000A only) */
> +       u16 reserved1[9];       /* 0x0e-0x1f */
>         u8 mac_addr[6];         /* 0x20-0x25 */
>         u8 reserved2[10];       /* 0x26-0x2f */
>         u8 sib[204];            /* 0x30-0xfb */
> @@ -397,6 +404,7 @@ struct netdev_private {
>         u16 advertising;        /* NWay media advertisement */
>         u16 negotiate;          /* Negotiated media */
>         int phy_addr;           /* PHY addresses. */
> +       u16 led_mode;           /* LED mode read from EEPROM (IP1000A only) */
>  };
>
>  /* The station address location in the EEPROM. */
> @@ -407,10 +415,15 @@ struct netdev_private {
>          class_mask              of the class are honored during the comparison.
>          driver_data             Data private to the driver.
>  */
> +#define CHIP_IP1000A   1
>
>  static const struct pci_device_id rio_pci_tbl[] = {
>         {0x1186, 0x4000, PCI_ANY_ID, PCI_ANY_ID, },
>         {0x13f0, 0x1021, PCI_ANY_ID, PCI_ANY_ID, },
> +       { PCI_VDEVICE(SUNDANCE, 0x1023), CHIP_IP1000A },
> +       { PCI_VDEVICE(SUNDANCE, 0x2021), CHIP_IP1000A },
> +       { PCI_VDEVICE(DLINK,    0x9021), CHIP_IP1000A },
> +       { PCI_VDEVICE(DLINK,    0x4020), CHIP_IP1000A },
>         { }
>  };
>  MODULE_DEVICE_TABLE (pci, rio_pci_tbl);
> --
> Ondrej Zary
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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-- 
With Best Regards,
Andy Shevchenko
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#1270642

FromDavid Miller <davem@davemloft.net>
Date2015-11-16 23:20 +0100
Message-ID<qvAhY-4Jx-11@gated-at.bofh.it>
In reply to#1269775
From: Ondrej Zary <linux@rainbow-software.org>
Date: Sun, 15 Nov 2015 22:36:11 +0100

> Add support for IP1000A chips to dl2k driver.
> IP1000A chip looks like a TC9020 with integrated PHY.
> 
> This allows IP1000A chips to work reliably because the ipg driver is
> buggy - it loses packets under load and then completely stops
> transmitting data.
> 
> Tested with Asus NX1101 v2.0 at 10, 100 and 1000Mbps:
> vendor=0x13f0 device=0x1023 (rev 0x41)
> subsystem vendor=0x1043 device=0x8180
> 
> MAC address registers access needed to be changed from 8-bit to 16-bit
> because 8-bit does not work on IP1000A. 8-bit access is not even
> allowed in the TC9020 datasheet (although it worked). 16-bit access
> works on both.
> 
> Tested that it does not break D-Link DGE-550T (DL-2000 chip, probably
> a rebranded TC9020):
> vendor=0x1186 device=0x4000 (rev 0x0c)
> subsystem vendor=0x1186 device=0x4000
> 
> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>

Ok, this is a major step forward, thanks for doing this work.

Applied.
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#1270645 — Re: [PATCH 2/2] ipg: Remove ipg driver

FromDavid Miller <davem@davemloft.net>
Date2015-11-16 23:20 +0100
SubjectRe: [PATCH 2/2] ipg: Remove ipg driver
Message-ID<qvAhY-4Jx-19@gated-at.bofh.it>
In reply to#1269775
From: Ondrej Zary <linux@rainbow-software.org>
Date: Sun, 15 Nov 2015 22:36:12 +0100

> Now that IP1000A chips are supported by dl2k driver, the buggy ipg
> driver can be removed.
> 
> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>

Also applied, thanks again.
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