* [PATCH V4 net-next 10/26] dnet: Support the get_ts_info ethtool method.
From: Richard Cochran @ 2012-04-04 8:59 UTC (permalink / raw)
To: netdev
Cc: e1000-devel, Martin Porter, John Ronciak, Ben Hutchings,
David Miller, Jacob Keller
In-Reply-To: <cover.1333529504.git.richardcochran@gmail.com>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
---
drivers/net/ethernet/dnet.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c
index b276469..290b26f 100644
--- a/drivers/net/ethernet/dnet.c
+++ b/drivers/net/ethernet/dnet.c
@@ -815,6 +815,7 @@ static const struct ethtool_ops dnet_ethtool_ops = {
.set_settings = dnet_set_settings,
.get_drvinfo = dnet_get_drvinfo,
.get_link = ethtool_op_get_link,
+ .get_ts_info = ethtool_op_get_ts_info,
};
static const struct net_device_ops dnet_netdev_ops = {
--
1.7.2.5
------------------------------------------------------------------------------
Better than sec? Nothing is better than sec when it comes to
monitoring Big Data applications. Try Boundary one-second
resolution app monitoring today. Free.
http://p.sf.net/sfu/Boundary-dev2dev
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
^ permalink raw reply related
* [PATCH V4 net-next 09/26] davinci_emac: Support the get_ts_info ethtool method.
From: Richard Cochran @ 2012-04-04 8:59 UTC (permalink / raw)
To: netdev
Cc: e1000-devel, Martin Porter, John Ronciak, Ben Hutchings,
David Miller, Jacob Keller
In-Reply-To: <cover.1333529504.git.richardcochran@gmail.com>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
---
drivers/net/ethernet/ti/davinci_emac.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 174a334..8aa3332 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -627,6 +627,7 @@ static const struct ethtool_ops ethtool_ops = {
.get_link = ethtool_op_get_link,
.get_coalesce = emac_get_coalesce,
.set_coalesce = emac_set_coalesce,
+ .get_ts_info = ethtool_op_get_ts_info,
};
/**
--
1.7.2.5
------------------------------------------------------------------------------
Better than sec? Nothing is better than sec when it comes to
monitoring Big Data applications. Try Boundary one-second
resolution app monitoring today. Free.
http://p.sf.net/sfu/Boundary-dev2dev
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
^ permalink raw reply related
* [PATCH V4 net-next 08/26] ax88796: Support the get_ts_info ethtool method.
From: Richard Cochran @ 2012-04-04 8:59 UTC (permalink / raw)
To: netdev
Cc: e1000-devel, Martin Porter, John Ronciak, Ben Hutchings,
David Miller, Jacob Keller
In-Reply-To: <cover.1333529504.git.richardcochran@gmail.com>
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
---
drivers/net/ethernet/8390/ax88796.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index c30adcc..211efbf 100644
--- a/drivers/net/ethernet/8390/ax88796.c
+++ b/drivers/net/ethernet/8390/ax88796.c
@@ -502,6 +502,7 @@ static const struct ethtool_ops ax_ethtool_ops = {
.get_settings = ax_get_settings,
.set_settings = ax_set_settings,
.get_link = ethtool_op_get_link,
+ .get_ts_info = ethtool_op_get_ts_info,
};
#ifdef CONFIG_AX88796_93CX6
--
1.7.2.5
------------------------------------------------------------------------------
Better than sec? Nothing is better than sec when it comes to
monitoring Big Data applications. Try Boundary one-second
resolution app monitoring today. Free.
http://p.sf.net/sfu/Boundary-dev2dev
_______________________________________________
E1000-devel mailing list
E1000-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/e1000-devel
To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
^ permalink raw reply related
* [PATCH net V1 1/2] net/bonding: emit address change event also in bond_release
From: Or Gerlitz @ 2012-04-04 8:56 UTC (permalink / raw)
To: davem; +Cc: roland, netdev, fubar, Or Gerlitz, Shlomo Pongratz
In-Reply-To: <1333529780-28421-1-git-send-email-ogerlitz@mellanox.com>
From: Shlomo Pongratz <shlomop@mellanox.com>
commit 7d26bb103c4 "bonding: emit event when bonding changes MAC" didn't
take care to emit the NETDEV_CHANGEADDR event in bond_release, where bonding
actually changes the mac address (to all zeroes). As a result the neighbours
aren't deleted by the core networking code (which does so upon getting that
event).
Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
---
drivers/net/bonding/bond_main.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a20b585..d38f635 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2035,6 +2035,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
write_unlock_bh(&bond->lock);
unblock_netpoll_tx();
+ if (bond->slave_cnt == 0)
+ call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev);
+
bond_compute_features(bond);
if (!(bond_dev->features & NETIF_F_VLAN_CHALLENGED) &&
(old_features & NETIF_F_VLAN_CHALLENGED))
--
1.7.1
^ permalink raw reply related
* [PATCH net V1 2/2] net/bonding: correctly proxy slave neigh param setup ndo function
From: Or Gerlitz @ 2012-04-04 8:56 UTC (permalink / raw)
To: davem; +Cc: roland, netdev, fubar, Or Gerlitz, Shlomo Pongratz
In-Reply-To: <1333529780-28421-1-git-send-email-ogerlitz@mellanox.com>
From: Shlomo Pongratz <shlomop@mellanox.com>
The current implemenation was buggy for slaves who use ndo_neigh_setup,
since the networking stack invokes the bonding device ndo entry (from
neigh_params_alloc) before any devices are enslaved, and the bonding
driver can't further delegate the call at that point in time. As a
result when bonding IPoIB devices, the neigh_cleanup hasn't been called.
Fix that by deferring the actual call into the slave ndo_neigh_setup
from the time the bonding neigh_setup is called.
Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
---
drivers/net/bonding/bond_main.c | 51 ++++++++++++++++++++++++++++++++------
1 files changed, 43 insertions(+), 8 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d38f635..c8dc1a5 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3705,17 +3705,52 @@ static void bond_set_multicast_list(struct net_device *bond_dev)
read_unlock(&bond->lock);
}
-static int bond_neigh_setup(struct net_device *dev, struct neigh_parms *parms)
+static int bond_neigh_init(struct neighbour *n)
{
- struct bonding *bond = netdev_priv(dev);
+ struct bonding *bond = netdev_priv(n->dev);
struct slave *slave = bond->first_slave;
+ const struct net_device_ops *slave_ops;
+ struct neigh_parms parms;
+ int ret;
+
+ if (!slave)
+ return 0;
+
+ slave_ops = slave->dev->netdev_ops;
+
+ if (!slave_ops->ndo_neigh_setup)
+ return 0;
+
+ parms.neigh_setup = NULL;
+ parms.neigh_cleanup = NULL;
+ ret = slave_ops->ndo_neigh_setup(slave->dev, &parms);
+ if (ret)
+ return ret;
+
+ /*
+ * Assign slave's neigh_cleanup to neighbour in case cleanup is called
+ * after the last slave has been detached. Assumes that all slaves
+ * utilize the same neigh_cleanup (true at this writing as only user
+ * is ipoib).
+ */
+ n->parms->neigh_cleanup = parms.neigh_cleanup;
+
+ if (!parms.neigh_setup)
+ return 0;
+
+ return parms.neigh_setup(n);
+}
+
+/*
+ * The bonding ndo_neigh_setup is called at init time beofre any
+ * slave exists. So we must declare proxy setup function which will
+ * be used at run time to resolve the actual slave neigh param setup.
+ */
+static int bond_neigh_setup(struct net_device *dev,
+ struct neigh_parms *parms)
+{
+ parms->neigh_setup = bond_neigh_init;
- if (slave) {
- const struct net_device_ops *slave_ops
- = slave->dev->netdev_ops;
- if (slave_ops->ndo_neigh_setup)
- return slave_ops->ndo_neigh_setup(slave->dev, parms);
- }
return 0;
}
--
1.7.1
^ permalink raw reply related
* [PATCH net V1 0/2] net/bonding: fixes related to neigh
From: Or Gerlitz @ 2012-04-04 8:56 UTC (permalink / raw)
To: davem; +Cc: roland, netdev, fubar, Or Gerlitz
From: Shlomo Pongratz <shlomop@mellanox.com>
Dave,
This small patch set fixes some issues we stepped on when preparing
for some IPoIB changes.
With the 1st patch, the kernel networking code of arp_netdev_event calls
neigh_changeaddr which further flashes the boding neighbours in some more
cases which weren't covered by commit 7d26bb103 "bonding: emit event when
bonding changes MAC"
The 2nd patch fixes a bug where under bonding, the IPoIB neigh cleanup
function wasn't called.
Or.
changes from V0: applied feedback from Jay Vosburgh
- emit the address change in bond_release but not in bond_release_all
where its unneeded.
- rephrase the comment in bond_neigh_init on why we need to pre-proxy
the cleanup function. Also removed a comment which isn't needed there.
Shlomo Pongratz (2):
net/bonding: emit address change event also in bond_release
net/bonding: correctly proxy slave neigh param setup ndo function
drivers/net/bonding/bond_main.c | 54 +++++++++++++++++++++++++++++++++------
1 files changed, 46 insertions(+), 8 deletions(-)
^ permalink raw reply
* Re: [PATCH v3 3/8] net: Add device tree support to LPC32xx
From: David Miller @ 2012-04-04 8:39 UTC (permalink / raw)
To: stigge
Cc: a.zummo, srinivas.bakki, linux-watchdog, rtc-linux, gregkh,
w.sang, kevin.wells, linux-kernel, wim, arm, linux-i2c, netdev,
linux-arm-kernel, jonsmirl
In-Reply-To: <1333528480-17134-4-git-send-email-stigge@antcom.de>
From: Roland Stigge <stigge@antcom.de>
Date: Wed, 4 Apr 2012 10:34:35 +0200
> This patch adds device tree support for lpc_eth.c.
>
> The runtime option for MII/RMII is solved via the "phy-mode" property, SRAM
> ("IRAM") usage for DMA can be chosen via "use-iram".
>
> Signed-off-by: Roland Stigge <stigge@antcom.de>
> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Feel free to merge this in via one of the ARM trees.
Acked-by: David S. Miller <davem@davemloft.net>
^ permalink raw reply
* [PATCH v3 8/8] i2c: Add device tree support to i2c-pnx.c
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
This patch adds device tree support to the pnx-i2c driver by using platform
resources for memory region and irq and removing dependency on mach includes.
The following platforms are affected:
* PNX
* LPC31xx (WIP)
* LPC32xx
The patch is based on a patch by Jon Smirl, working on lpc31xx integration
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
Documentation/devicetree/bindings/i2c/pnx.txt | 40 ++++++++++++++++
drivers/i2c/busses/i2c-pnx.c | 65 +++++++++++++++++++-------
include/linux/i2c-pnx.h | 1
3 files changed, 89 insertions(+), 17 deletions(-)
--- /dev/null
+++ linux-2.6/Documentation/devicetree/bindings/i2c/pnx.txt
@@ -0,0 +1,40 @@
+* NXP PNX I2C Controller
+
+Required properties:
+
+ - reg: Offset and length of the register set for the device
+ - compatible: should be "nxp,pnx-i2c"
+ - interrupts: configure one interrupt line
+ - #address-cells: always 1 (for i2c addresses)
+ - #size-cells: always 0
+
+Optional properties:
+
+ - interrupt-parent: the phandle for the interrupt controller that
+ services interrupts for this device.
+ - clock-frequency: desired I2C bus clock frequency in Hz, Default: 100000 Hz
+ - pnx,timeout: I2C bus timeout in milliseconds, Default: 10 ms
+ - slave-addr: Address used by the controller, Hardware default: 110
+
+Examples:
+
+ i2c1: i2c@400a0000 {
+ compatible = "nxp,pnx-i2c";
+ reg = <0x400a0000 0x100>;
+ interrupt-parent = <&mic>;
+ interrupts = <51 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c2: i2c@400a8000 {
+ compatible = "nxp,pnx-i2c";
+ reg = <0x400a8000 0x100>;
+ interrupt-parent = <&mic>;
+ interrupts = <50 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clock-frequency = <0x186a0>;
+ pnx,timeout = <0x64>;
+ slave-addr = <0x11>;
+ };
--- linux-2.6.orig/drivers/i2c/busses/i2c-pnx.c
+++ linux-2.6/drivers/i2c/busses/i2c-pnx.c
@@ -23,10 +23,11 @@
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/slab.h>
+#include <linux/of_i2c.h>
-#define I2C_PNX_TIMEOUT 10 /* msec */
-#define I2C_PNX_SPEED_KHZ 100
-#define I2C_PNX_REGION_SIZE 0x100
+#define I2C_PNX_TIMEOUT_DEFAULT 10 /* msec */
+#define I2C_PNX_SPEED_KHZ_DEFAULT 100
+#define I2C_PNX_REGION_SIZE 0x100
enum {
mstatus_tdi = 0x00000001,
@@ -74,8 +75,9 @@ enum {
#define I2C_REG_TXS(a) ((a)->ioaddr + 0x28) /* Tx slave FIFO (RO) */
#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c) /* Tx slave FIFO level (RO) */
-static inline int wait_timeout(long timeout, struct i2c_pnx_algo_data *data)
+static inline int wait_timeout(struct i2c_pnx_algo_data *data)
{
+ long timeout = data->timeout;
while (timeout > 0 &&
(ioread32(I2C_REG_STS(data)) & mstatus_active)) {
mdelay(1);
@@ -84,8 +86,9 @@ static inline int wait_timeout(long time
return (timeout <= 0);
}
-static inline int wait_reset(long timeout, struct i2c_pnx_algo_data *data)
+static inline int wait_reset(struct i2c_pnx_algo_data *data)
{
+ long timeout = data->timeout;
while (timeout > 0 &&
(ioread32(I2C_REG_CTL(data)) & mcntrl_reset)) {
mdelay(1);
@@ -97,7 +100,7 @@ static inline int wait_reset(long timeou
static inline void i2c_pnx_arm_timer(struct i2c_pnx_algo_data *alg_data)
{
struct timer_list *timer = &alg_data->mif.timer;
- unsigned long expires = msecs_to_jiffies(I2C_PNX_TIMEOUT);
+ unsigned long expires = msecs_to_jiffies(alg_data->timeout);
if (expires <= 1)
expires = 2;
@@ -135,7 +138,7 @@ static int i2c_pnx_start(unsigned char s
}
/* First, make sure bus is idle */
- if (wait_timeout(I2C_PNX_TIMEOUT, alg_data)) {
+ if (wait_timeout(alg_data)) {
/* Somebody else is monopolizing the bus */
dev_err(&alg_data->adapter.dev,
"%s: Bus busy. Slave addr = %02x, cntrl = %x, stat = %x\n",
@@ -228,7 +231,7 @@ static int i2c_pnx_master_xmit(struct i2
if (alg_data->mif.len == 0) {
if (alg_data->last) {
/* Wait until the STOP is seen. */
- if (wait_timeout(I2C_PNX_TIMEOUT, alg_data))
+ if (wait_timeout(alg_data))
dev_err(&alg_data->adapter.dev,
"The bus is still active after timeout\n");
}
@@ -326,7 +329,7 @@ static int i2c_pnx_master_rcv(struct i2c
if (alg_data->mif.len == 0) {
if (alg_data->last)
/* Wait until the STOP is seen. */
- if (wait_timeout(I2C_PNX_TIMEOUT, alg_data))
+ if (wait_timeout(alg_data))
dev_err(&alg_data->adapter.dev,
"The bus is still active after timeout\n");
@@ -442,7 +445,7 @@ static void i2c_pnx_timeout(unsigned lon
ctl |= mcntrl_reset;
iowrite32(ctl, I2C_REG_CTL(alg_data));
- wait_reset(I2C_PNX_TIMEOUT, alg_data);
+ wait_reset(alg_data);
alg_data->mif.ret = -EIO;
complete(&alg_data->mif.complete);
}
@@ -457,18 +460,18 @@ static inline void bus_reset_if_active(s
alg_data->adapter.name);
iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
I2C_REG_CTL(alg_data));
- wait_reset(I2C_PNX_TIMEOUT, alg_data);
+ wait_reset(alg_data);
} else if (!(stat & mstatus_rfe) || !(stat & mstatus_tfe)) {
/* If there is data in the fifo's after transfer,
* flush fifo's by reset.
*/
iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
I2C_REG_CTL(alg_data));
- wait_reset(I2C_PNX_TIMEOUT, alg_data);
+ wait_reset(alg_data);
} else if (stat & mstatus_nai) {
iowrite32(ioread32(I2C_REG_CTL(alg_data)) | mcntrl_reset,
I2C_REG_CTL(alg_data));
- wait_reset(I2C_PNX_TIMEOUT, alg_data);
+ wait_reset(alg_data);
}
}
@@ -612,6 +615,8 @@ static int __devinit i2c_pnx_probe(struc
struct i2c_pnx_algo_data *alg_data;
unsigned long freq;
struct resource *res;
+ u32 speed = I2C_PNX_SPEED_KHZ_DEFAULT * 1000;
+ u32 slave_addr = ~0;
alg_data = kzalloc(sizeof(*alg_data), GFP_KERNEL);
if (!alg_data) {
@@ -626,6 +631,18 @@ static int __devinit i2c_pnx_probe(struc
alg_data->adapter.algo_data = alg_data;
alg_data->adapter.nr = pdev->id;
+ alg_data->timeout = I2C_PNX_TIMEOUT_DEFAULT;
+#ifdef CONFIG_OF
+ alg_data->adapter.dev.of_node = of_node_get(pdev->dev.of_node);
+ if (pdev->dev.of_node) {
+ of_property_read_u32(pdev->dev.of_node, "pnx,timeout",
+ &alg_data->timeout);
+ of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+ &speed);
+ of_property_read_u32(pdev->dev.of_node, "slave-addr",
+ &slave_addr);
+ }
+#endif
alg_data->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(alg_data->clk)) {
ret = PTR_ERR(alg_data->clk);
@@ -651,7 +668,7 @@ static int __devinit i2c_pnx_probe(struc
dev_err(&pdev->dev,
"I/O region 0x%08x for I2C already in use.\n",
res->start);
- ret = -ENODEV;
+ ret = -ENOMEM;
goto out_clkget;
}
@@ -667,6 +684,9 @@ static int __devinit i2c_pnx_probe(struc
if (ret)
goto out_unmap;
+ if (slave_addr != ~0)
+ iowrite32(slave_addr, I2C_REG_ADR(alg_data));
+
freq = clk_get_rate(alg_data->clk);
/*
@@ -680,14 +700,14 @@ static int __devinit i2c_pnx_probe(struc
* the deglitching filter length.
*/
- tmp = ((freq / 1000) / I2C_PNX_SPEED_KHZ) / 2 - 2;
+ tmp = (freq / speed) / 2 - 2;
if (tmp > 0x3FF)
tmp = 0x3FF;
iowrite32(tmp, I2C_REG_CKH(alg_data));
iowrite32(tmp, I2C_REG_CKL(alg_data));
iowrite32(mcntrl_reset, I2C_REG_CTL(alg_data));
- if (wait_reset(I2C_PNX_TIMEOUT, alg_data)) {
+ if (wait_reset(alg_data)) {
ret = -ENODEV;
goto out_clock;
}
@@ -699,7 +719,7 @@ static int __devinit i2c_pnx_probe(struc
goto out_irq;
}
ret = request_irq(alg_data->irq, i2c_pnx_interrupt,
- 0, pdev->name, alg_data);
+ 0, pdev->name, alg_data);
if (ret)
goto out_clock;
@@ -710,6 +730,8 @@ static int __devinit i2c_pnx_probe(struc
goto out_irq;
}
+ of_i2c_register_devices(&alg_data->adapter);
+
dev_dbg(&pdev->dev, "%s: Master at %#8x, irq %d.\n",
alg_data->adapter.name, res->start, alg_data->irq);
@@ -748,10 +770,19 @@ static int __devexit i2c_pnx_remove(stru
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id i2c_pnx_of_match[] = {
+ { .compatible = "nxp,pnx-i2c" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, i2c_pnx_of_match);
+#endif
+
static struct platform_driver i2c_pnx_driver = {
.driver = {
.name = "pnx-i2c",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(i2c_pnx_of_match),
},
.probe = i2c_pnx_probe,
.remove = __devexit_p(i2c_pnx_remove),
--- linux-2.6.orig/include/linux/i2c-pnx.h
+++ linux-2.6/include/linux/i2c-pnx.h
@@ -32,6 +32,7 @@ struct i2c_pnx_algo_data {
struct i2c_adapter adapter;
phys_addr_t base;
int irq;
+ u32 timeout;
};
#endif /* __I2C_PNX_H__ */
^ permalink raw reply
* [PATCH v3 7/8] i2c-pnx.c: Remove duplicated i2c.h
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
The platforms using i2c-pnx.c both defined a duplicated i2c.h (used nowhere
else). This patch removes those and integrates the contents into the driver
itself.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
arch/arm/mach-lpc32xx/include/mach/i2c.h | 63 ------------------------------
arch/arm/mach-pnx4008/include/mach/i2c.h | 64 -------------------------------
drivers/i2c/busses/i2c-pnx.c | 49 ++++++++++++++++++++++-
3 files changed, 46 insertions(+), 130 deletions(-)
--- linux-2.6.orig/arch/arm/mach-lpc32xx/include/mach/i2c.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * PNX4008-specific tweaks for I2C IP3204 block
- *
- * Author: Vitaly Wool <vwool@ru.mvista.com>
- *
- * 2005 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#ifndef __ASM_ARCH_I2C_H
-#define __ASM_ARCH_I2C_H
-
-enum {
- mstatus_tdi = 0x00000001,
- mstatus_afi = 0x00000002,
- mstatus_nai = 0x00000004,
- mstatus_drmi = 0x00000008,
- mstatus_active = 0x00000020,
- mstatus_scl = 0x00000040,
- mstatus_sda = 0x00000080,
- mstatus_rff = 0x00000100,
- mstatus_rfe = 0x00000200,
- mstatus_tff = 0x00000400,
- mstatus_tfe = 0x00000800,
-};
-
-enum {
- mcntrl_tdie = 0x00000001,
- mcntrl_afie = 0x00000002,
- mcntrl_naie = 0x00000004,
- mcntrl_drmie = 0x00000008,
- mcntrl_daie = 0x00000020,
- mcntrl_rffie = 0x00000040,
- mcntrl_tffie = 0x00000080,
- mcntrl_reset = 0x00000100,
- mcntrl_cdbmode = 0x00000400,
-};
-
-enum {
- rw_bit = 1 << 0,
- start_bit = 1 << 8,
- stop_bit = 1 << 9,
-};
-
-#define I2C_REG_RX(a) ((a)->ioaddr) /* Rx FIFO reg (RO) */
-#define I2C_REG_TX(a) ((a)->ioaddr) /* Tx FIFO reg (WO) */
-#define I2C_REG_STS(a) ((a)->ioaddr + 0x04) /* Status reg (RO) */
-#define I2C_REG_CTL(a) ((a)->ioaddr + 0x08) /* Ctl reg */
-#define I2C_REG_CKL(a) ((a)->ioaddr + 0x0c) /* Clock divider low */
-#define I2C_REG_CKH(a) ((a)->ioaddr + 0x10) /* Clock divider high */
-#define I2C_REG_ADR(a) ((a)->ioaddr + 0x14) /* I2C address */
-#define I2C_REG_RFL(a) ((a)->ioaddr + 0x18) /* Rx FIFO level (RO) */
-#define I2C_REG_TFL(a) ((a)->ioaddr + 0x1c) /* Tx FIFO level (RO) */
-#define I2C_REG_RXB(a) ((a)->ioaddr + 0x20) /* Num of bytes Rx-ed (RO) */
-#define I2C_REG_TXB(a) ((a)->ioaddr + 0x24) /* Num of bytes Tx-ed (RO) */
-#define I2C_REG_TXS(a) ((a)->ioaddr + 0x28) /* Tx slave FIFO (RO) */
-#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c) /* Tx slave FIFO level (RO) */
-
-#define I2C_CHIP_NAME "PNX4008-I2C"
-
-#endif /* __ASM_ARCH_I2C_H */
--- linux-2.6.orig/arch/arm/mach-pnx4008/include/mach/i2c.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * PNX4008-specific tweaks for I2C IP3204 block
- *
- * Author: Vitaly Wool <vwool@ru.mvista.com>
- *
- * 2005 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#ifndef __ASM_ARCH_I2C_H__
-#define __ASM_ARCH_I2C_H__
-
-enum {
- mstatus_tdi = 0x00000001,
- mstatus_afi = 0x00000002,
- mstatus_nai = 0x00000004,
- mstatus_drmi = 0x00000008,
- mstatus_active = 0x00000020,
- mstatus_scl = 0x00000040,
- mstatus_sda = 0x00000080,
- mstatus_rff = 0x00000100,
- mstatus_rfe = 0x00000200,
- mstatus_tff = 0x00000400,
- mstatus_tfe = 0x00000800,
-};
-
-enum {
- mcntrl_tdie = 0x00000001,
- mcntrl_afie = 0x00000002,
- mcntrl_naie = 0x00000004,
- mcntrl_drmie = 0x00000008,
- mcntrl_daie = 0x00000020,
- mcntrl_rffie = 0x00000040,
- mcntrl_tffie = 0x00000080,
- mcntrl_reset = 0x00000100,
- mcntrl_cdbmode = 0x00000400,
-};
-
-enum {
- rw_bit = 1 << 0,
- start_bit = 1 << 8,
- stop_bit = 1 << 9,
-};
-
-#define I2C_REG_RX(a) ((a)->ioaddr) /* Rx FIFO reg (RO) */
-#define I2C_REG_TX(a) ((a)->ioaddr) /* Tx FIFO reg (WO) */
-#define I2C_REG_STS(a) ((a)->ioaddr + 0x04) /* Status reg (RO) */
-#define I2C_REG_CTL(a) ((a)->ioaddr + 0x08) /* Ctl reg */
-#define I2C_REG_CKL(a) ((a)->ioaddr + 0x0c) /* Clock divider low */
-#define I2C_REG_CKH(a) ((a)->ioaddr + 0x10) /* Clock divider high */
-#define I2C_REG_ADR(a) ((a)->ioaddr + 0x14) /* I2C address */
-#define I2C_REG_RFL(a) ((a)->ioaddr + 0x18) /* Rx FIFO level (RO) */
-#define I2C_REG_TFL(a) ((a)->ioaddr + 0x1c) /* Tx FIFO level (RO) */
-#define I2C_REG_RXB(a) ((a)->ioaddr + 0x20) /* Num of bytes Rx-ed (RO) */
-#define I2C_REG_TXB(a) ((a)->ioaddr + 0x24) /* Num of bytes Tx-ed (RO) */
-#define I2C_REG_TXS(a) ((a)->ioaddr + 0x28) /* Tx slave FIFO (RO) */
-#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c) /* Tx slave FIFO level (RO) */
-
-#define HCLK_MHZ 13
-#define I2C_CHIP_NAME "PNX4008-I2C"
-
-#endif /* __ASM_ARCH_I2C_H___ */
--- linux-2.6.orig/drivers/i2c/busses/i2c-pnx.c
+++ linux-2.6/drivers/i2c/busses/i2c-pnx.c
@@ -24,13 +24,56 @@
#include <linux/clk.h>
#include <linux/slab.h>
-#include <mach/hardware.h>
-#include <mach/i2c.h>
-
#define I2C_PNX_TIMEOUT 10 /* msec */
#define I2C_PNX_SPEED_KHZ 100
#define I2C_PNX_REGION_SIZE 0x100
+enum {
+ mstatus_tdi = 0x00000001,
+ mstatus_afi = 0x00000002,
+ mstatus_nai = 0x00000004,
+ mstatus_drmi = 0x00000008,
+ mstatus_active = 0x00000020,
+ mstatus_scl = 0x00000040,
+ mstatus_sda = 0x00000080,
+ mstatus_rff = 0x00000100,
+ mstatus_rfe = 0x00000200,
+ mstatus_tff = 0x00000400,
+ mstatus_tfe = 0x00000800,
+};
+
+enum {
+ mcntrl_tdie = 0x00000001,
+ mcntrl_afie = 0x00000002,
+ mcntrl_naie = 0x00000004,
+ mcntrl_drmie = 0x00000008,
+ mcntrl_daie = 0x00000020,
+ mcntrl_rffie = 0x00000040,
+ mcntrl_tffie = 0x00000080,
+ mcntrl_reset = 0x00000100,
+ mcntrl_cdbmode = 0x00000400,
+};
+
+enum {
+ rw_bit = 1 << 0,
+ start_bit = 1 << 8,
+ stop_bit = 1 << 9,
+};
+
+#define I2C_REG_RX(a) ((a)->ioaddr) /* Rx FIFO reg (RO) */
+#define I2C_REG_TX(a) ((a)->ioaddr) /* Tx FIFO reg (WO) */
+#define I2C_REG_STS(a) ((a)->ioaddr + 0x04) /* Status reg (RO) */
+#define I2C_REG_CTL(a) ((a)->ioaddr + 0x08) /* Ctl reg */
+#define I2C_REG_CKL(a) ((a)->ioaddr + 0x0c) /* Clock divider low */
+#define I2C_REG_CKH(a) ((a)->ioaddr + 0x10) /* Clock divider high */
+#define I2C_REG_ADR(a) ((a)->ioaddr + 0x14) /* I2C address */
+#define I2C_REG_RFL(a) ((a)->ioaddr + 0x18) /* Rx FIFO level (RO) */
+#define I2C_REG_TFL(a) ((a)->ioaddr + 0x1c) /* Tx FIFO level (RO) */
+#define I2C_REG_RXB(a) ((a)->ioaddr + 0x20) /* Num of bytes Rx-ed (RO) */
+#define I2C_REG_TXB(a) ((a)->ioaddr + 0x24) /* Num of bytes Tx-ed (RO) */
+#define I2C_REG_TXS(a) ((a)->ioaddr + 0x28) /* Tx slave FIFO (RO) */
+#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c) /* Tx slave FIFO level (RO) */
+
static inline int wait_timeout(long timeout, struct i2c_pnx_algo_data *data)
{
while (timeout > 0 &&
^ permalink raw reply
* [PATCH v3 6/8] i2c-pnx.c: Use resources in platforms
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
As a precondition for device tree conversion, the platforms using i2c-pnx.c are
converted to using mem and irq resources instead of platform data.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
arch/arm/mach-lpc32xx/common.c | 75 +++++++++++++++++++++++++----------------
arch/arm/mach-pnx4008/i2c.c | 64 +++++++++++++++++++++-------------
drivers/i2c/busses/i2c-pnx.c | 47 +++++++++++++------------
include/linux/i2c-pnx.h | 9 +---
4 files changed, 112 insertions(+), 83 deletions(-)
--- linux-2.6.orig/arch/arm/mach-lpc32xx/common.c
+++ linux-2.6/arch/arm/mach-lpc32xx/common.c
@@ -27,7 +27,6 @@
#include <asm/mach/map.h>
-#include <mach/i2c.h>
#include <mach/hardware.h>
#include <mach/platform.h>
#include "common.h"
@@ -53,46 +52,64 @@ struct platform_device lpc32xx_watchdog_
/*
* I2C busses
*/
-static struct i2c_pnx_data i2c0_data = {
- .name = I2C_CHIP_NAME "1",
- .base = LPC32XX_I2C1_BASE,
- .irq = IRQ_LPC32XX_I2C_1,
-};
-
-static struct i2c_pnx_data i2c1_data = {
- .name = I2C_CHIP_NAME "2",
- .base = LPC32XX_I2C2_BASE,
- .irq = IRQ_LPC32XX_I2C_2,
-};
-
-static struct i2c_pnx_data i2c2_data = {
- .name = "USB-I2C",
- .base = LPC32XX_OTG_I2C_BASE,
- .irq = IRQ_LPC32XX_USB_I2C,
+static struct resource i2c0_resources[] = {
+ [0] = {
+ .start = LPC32XX_I2C1_BASE,
+ .end = LPC32XX_I2C1_BASE + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_LPC32XX_I2C_1,
+ .end = IRQ_LPC32XX_I2C_1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource i2c1_resources[] = {
+ [0] = {
+ .start = LPC32XX_I2C2_BASE,
+ .end = LPC32XX_I2C2_BASE + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_LPC32XX_I2C_2,
+ .end = IRQ_LPC32XX_I2C_2,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource i2c2_resources[] = {
+ [0] = {
+ .start = LPC32XX_OTG_I2C_BASE,
+ .end = LPC32XX_OTG_I2C_BASE + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_LPC32XX_USB_I2C,
+ .end = IRQ_LPC32XX_USB_I2C,
+ .flags = IORESOURCE_IRQ,
+ },
};
struct platform_device lpc32xx_i2c0_device = {
- .name = "pnx-i2c",
+ .name = "pnx-i2c.0",
.id = 0,
- .dev = {
- .platform_data = &i2c0_data,
- },
+ .num_resources = ARRAY_SIZE(i2c0_resources),
+ .resource = i2c0_resources,
};
struct platform_device lpc32xx_i2c1_device = {
- .name = "pnx-i2c",
+ .name = "pnx-i2c.1",
.id = 1,
- .dev = {
- .platform_data = &i2c1_data,
- },
+ .num_resources = ARRAY_SIZE(i2c1_resources),
+ .resource = i2c1_resources,
};
struct platform_device lpc32xx_i2c2_device = {
- .name = "pnx-i2c",
+ .name = "pnx-i2c.2",
.id = 2,
- .dev = {
- .platform_data = &i2c2_data,
- },
+ .num_resources = ARRAY_SIZE(i2c2_resources),
+ .resource = i2c2_resources,
};
/* TSC (Touch Screen Controller) */
--- linux-2.6.orig/arch/arm/mach-pnx4008/i2c.c
+++ linux-2.6/arch/arm/mach-pnx4008/i2c.c
@@ -16,48 +16,62 @@
#include <linux/err.h>
#include <mach/platform.h>
#include <mach/irqs.h>
-#include <mach/i2c.h>
-static struct i2c_pnx_data i2c0_data = {
- .name = I2C_CHIP_NAME "0",
- .base = PNX4008_I2C1_BASE,
- .irq = I2C_1_INT,
+static struct resource i2c0_resources[] = {
+ {
+ .start = PNX4008_I2C1_BASE,
+ .end = PNX4008_I2C1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = I2C_1_INT,
+ .end = I2C_1_INT,
+ .flags = IORESOURCE_IRQ,
+ },
};
-static struct i2c_pnx_data i2c1_data = {
- .name = I2C_CHIP_NAME "1",
- .base = PNX4008_I2C2_BASE,
- .irq = I2C_2_INT,
+static struct resource i2c1_resources[] = {
+ {
+ .start = PNX4008_I2C2_BASE,
+ .end = PNX4008_I2C2_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = I2C_2_INT,
+ .end = I2C_2_INT,
+ .flags = IORESOURCE_IRQ,
+ },
};
-static struct i2c_pnx_data i2c2_data = {
- .name = "USB-I2C",
- .base = (PNX4008_USB_CONFIG_BASE + 0x300),
- .irq = USB_I2C_INT,
+static struct resource i2c2_resources[] = {
+ {
+ .start = PNX4008_USB_CONFIG_BASE + 0x300,
+ .end = PNX4008_USB_CONFIG_BASE + 0x300 + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = USB_I2C_INT,
+ .end = USB_I2C_INT,
+ .flags = IORESOURCE_IRQ,
+ },
};
static struct platform_device i2c0_device = {
- .name = "pnx-i2c",
+ .name = "pnx-i2c.0",
.id = 0,
- .dev = {
- .platform_data = &i2c0_data,
- },
+ .resource = i2c0_resources,
+ .num_resources = ARRAY_SIZE(i2c0_resources),
};
static struct platform_device i2c1_device = {
- .name = "pnx-i2c",
+ .name = "pnx-i2c.1",
.id = 1,
- .dev = {
- .platform_data = &i2c1_data,
- },
+ .resource = i2c1_resources,
+ .num_resources = ARRAY_SIZE(i2c1_resources),
};
static struct platform_device i2c2_device = {
- .name = "pnx-i2c",
+ .name = "pnx-i2c.2",
.id = 2,
- .dev = {
- .platform_data = &i2c2_data,
- },
+ .resource = i2c2_resources,
+ .num_resources = ARRAY_SIZE(i2c2_resources),
};
static struct platform_device *devices[] __initdata = {
--- linux-2.6.orig/drivers/i2c/busses/i2c-pnx.c
+++ linux-2.6/drivers/i2c/busses/i2c-pnx.c
@@ -568,14 +568,7 @@ static int __devinit i2c_pnx_probe(struc
int ret = 0;
struct i2c_pnx_algo_data *alg_data;
unsigned long freq;
- struct i2c_pnx_data *i2c_pnx = pdev->dev.platform_data;
-
- if (!i2c_pnx || !i2c_pnx->name) {
- dev_err(&pdev->dev, "%s: no platform data supplied\n",
- __func__);
- ret = -EINVAL;
- goto out;
- }
+ struct resource *res;
alg_data = kzalloc(sizeof(*alg_data), GFP_KERNEL);
if (!alg_data) {
@@ -585,13 +578,10 @@ static int __devinit i2c_pnx_probe(struc
platform_set_drvdata(pdev, alg_data);
- strlcpy(alg_data->adapter.name, i2c_pnx->name,
- sizeof(alg_data->adapter.name));
alg_data->adapter.dev.parent = &pdev->dev;
alg_data->adapter.algo = &pnx_algorithm;
alg_data->adapter.algo_data = alg_data;
alg_data->adapter.nr = pdev->id;
- alg_data->i2c_pnx = i2c_pnx;
alg_data->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(alg_data->clk)) {
@@ -603,17 +593,27 @@ static int __devinit i2c_pnx_probe(struc
alg_data->mif.timer.function = i2c_pnx_timeout;
alg_data->mif.timer.data = (unsigned long)alg_data;
+ snprintf(alg_data->adapter.name, sizeof(alg_data->adapter.name),
+ "%s", pdev->name);
+
/* Register I/O resource */
- if (!request_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE,
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get mem resource.\n");
+ ret = -EBUSY;
+ goto out_clkget;
+ }
+ if (!request_mem_region(res->start, I2C_PNX_REGION_SIZE,
pdev->name)) {
dev_err(&pdev->dev,
"I/O region 0x%08x for I2C already in use.\n",
- i2c_pnx->base);
+ res->start);
ret = -ENODEV;
goto out_clkget;
}
- alg_data->ioaddr = ioremap(i2c_pnx->base, I2C_PNX_REGION_SIZE);
+ alg_data->base = res->start;
+ alg_data->ioaddr = ioremap(res->start, I2C_PNX_REGION_SIZE);
if (!alg_data->ioaddr) {
dev_err(&pdev->dev, "Couldn't ioremap I2C I/O region\n");
ret = -ENOMEM;
@@ -650,7 +650,12 @@ static int __devinit i2c_pnx_probe(struc
}
init_completion(&alg_data->mif.complete);
- ret = request_irq(i2c_pnx->irq, i2c_pnx_interrupt,
+ alg_data->irq = platform_get_irq(pdev, 0);
+ if (alg_data->irq < 0) {
+ dev_err(&pdev->dev, "Failed to get IRQ from platform resource\n");
+ goto out_irq;
+ }
+ ret = request_irq(alg_data->irq, i2c_pnx_interrupt,
0, pdev->name, alg_data);
if (ret)
goto out_clock;
@@ -663,38 +668,36 @@ static int __devinit i2c_pnx_probe(struc
}
dev_dbg(&pdev->dev, "%s: Master at %#8x, irq %d.\n",
- alg_data->adapter.name, i2c_pnx->base, i2c_pnx->irq);
+ alg_data->adapter.name, res->start, alg_data->irq);
return 0;
out_irq:
- free_irq(i2c_pnx->irq, alg_data);
+ free_irq(alg_data->irq, alg_data);
out_clock:
clk_disable(alg_data->clk);
out_unmap:
iounmap(alg_data->ioaddr);
out_release:
- release_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE);
+ release_mem_region(res->start, I2C_PNX_REGION_SIZE);
out_clkget:
clk_put(alg_data->clk);
out_drvdata:
kfree(alg_data);
err_kzalloc:
platform_set_drvdata(pdev, NULL);
-out:
return ret;
}
static int __devexit i2c_pnx_remove(struct platform_device *pdev)
{
struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
- struct i2c_pnx_data *i2c_pnx = alg_data->i2c_pnx;
- free_irq(i2c_pnx->irq, alg_data);
+ free_irq(alg_data->irq, alg_data);
i2c_del_adapter(&alg_data->adapter);
clk_disable(alg_data->clk);
iounmap(alg_data->ioaddr);
- release_mem_region(i2c_pnx->base, I2C_PNX_REGION_SIZE);
+ release_mem_region(alg_data->base, I2C_PNX_REGION_SIZE);
clk_put(alg_data->clk);
kfree(alg_data);
platform_set_drvdata(pdev, NULL);
--- linux-2.6.orig/include/linux/i2c-pnx.h
+++ linux-2.6/include/linux/i2c-pnx.h
@@ -29,14 +29,9 @@ struct i2c_pnx_algo_data {
struct i2c_pnx_mif mif;
int last;
struct clk *clk;
- struct i2c_pnx_data *i2c_pnx;
struct i2c_adapter adapter;
-};
-
-struct i2c_pnx_data {
- const char *name;
- u32 base;
- int irq;
+ phys_addr_t base;
+ int irq;
};
#endif /* __I2C_PNX_H__ */
^ permalink raw reply
* [PATCH v3 5/8] i2c-pnx.c: Fix suspend
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge, stable
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
In the driver's suspend function, clk_enable() was used instead of
clk_disable(). This is corrected with this patch.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
CC: stable@vger.kernel.org
---
Applies to v3.4-rc1
drivers/i2c/busses/i2c-pnx.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- linux-2.6.orig/drivers/i2c/busses/i2c-pnx.c
+++ linux-2.6/drivers/i2c/busses/i2c-pnx.c
@@ -546,8 +546,7 @@ static int i2c_pnx_controller_suspend(st
{
struct i2c_pnx_algo_data *alg_data = platform_get_drvdata(pdev);
- /* FIXME: shouldn't this be clk_disable? */
- clk_enable(alg_data->clk);
+ clk_disable(alg_data->clk);
return 0;
}
^ permalink raw reply
* [PATCH v3 4/8] wdt: Device tree support for pnx4008-wdt
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
This patch adds watchdog support to pnx4008-wdt.c
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
Documentation/devicetree/bindings/watchdog/pnx4008-wdt.txt | 13 +++++++++++++
drivers/watchdog/pnx4008_wdt.c | 10 ++++++++++
2 files changed, 23 insertions(+)
--- /dev/null
+++ linux-2.6/Documentation/devicetree/bindings/watchdog/pnx4008-wdt.txt
@@ -0,0 +1,13 @@
+* NXP PNX watchdog timer
+
+Required properties:
+- compatible: must be "nxp,pnx4008-wdt"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+
+Example:
+
+ watchdog@4003C000 {
+ compatible = "nxp,pnx4008-wdt";
+ reg = <0x4003C000 0x1000>;
+ };
--- linux-2.6.orig/drivers/watchdog/pnx4008_wdt.c
+++ linux-2.6/drivers/watchdog/pnx4008_wdt.c
@@ -32,6 +32,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/err.h>
+#include <linux/of.h>
#include <mach/hardware.h>
/* WatchDog Timer - Chapter 23 Page 207 */
@@ -201,10 +202,19 @@ static int __devexit pnx4008_wdt_remove(
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id pnx4008_wdt_match[] = {
+ { .compatible = "nxp,pnx4008-wdt" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pnx4008_wdt_match);
+#endif
+
static struct platform_driver platform_wdt_driver = {
.driver = {
.name = "pnx4008-watchdog",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(pnx4008_wdt_match),
},
.probe = pnx4008_wdt_probe,
.remove = __devexit_p(pnx4008_wdt_remove),
^ permalink raw reply
* [PATCH v3 3/8] net: Add device tree support to LPC32xx
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
This patch adds device tree support for lpc_eth.c.
The runtime option for MII/RMII is solved via the "phy-mode" property, SRAM
("IRAM") usage for DMA can be chosen via "use-iram".
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
Documentation/devicetree/bindings/net/lpc-eth.txt | 24 +++++++
drivers/net/ethernet/nxp/lpc_eth.c | 71 +++++++++++++++-------
2 files changed, 74 insertions(+), 21 deletions(-)
--- /dev/null
+++ linux-2.6/Documentation/devicetree/bindings/net/lpc-eth.txt
@@ -0,0 +1,24 @@
+* NXP LPC32xx SoC Ethernet Controller
+
+Required properties:
+- compatible: Should be "nxp,lpc-eth"
+- reg: Address and length of the register set for the device
+- interrupts: Should contain ethernet controller interrupt
+
+Optional properties:
+- phy-mode: String, operation mode of the PHY interface.
+ Supported values are: "mii", "rmii" (default)
+- use-iram: Use LPC32xx internal SRAM (IRAM) for DMA buffering
+- local-mac-address : 6 bytes, mac address
+
+Example:
+
+ mac: ethernet@31060000 {
+ compatible = "nxp,lpc-eth";
+ reg = <0x31060000 0x1000>;
+ interrupt-parent = <&mic>;
+ interrupts = <29 0>;
+
+ phy-mode = "rmii";
+ use-iram;
+ };
--- linux-2.6.orig/drivers/net/ethernet/nxp/lpc_eth.c
+++ linux-2.6/drivers/net/ethernet/nxp/lpc_eth.c
@@ -40,6 +40,7 @@
#include <linux/skbuff.h>
#include <linux/phy.h>
#include <linux/dma-mapping.h>
+#include <linux/of.h>
#include <linux/of_net.h>
#include <linux/types.h>
@@ -340,13 +341,17 @@
*/
#define LPC_POWERDOWN_MACAHB (1 << 31)
-/* Upon the upcoming introduction of device tree usage in LPC32xx,
- * lpc_phy_interface_mode() and use_iram_for_net() will be extended with a
- * device parameter for access to device tree information at runtime, instead
- * of defining the values at compile time
- */
-static inline phy_interface_t lpc_phy_interface_mode(void)
+static phy_interface_t lpc_phy_interface_mode(struct device *dev)
{
+ if (dev && dev->of_node) {
+ const char *mode = of_get_property(dev->of_node,
+ "phy-mode", NULL);
+ if (mode && !strcmp(mode, "mii"))
+ return PHY_INTERFACE_MODE_MII;
+ return PHY_INTERFACE_MODE_RMII;
+ }
+
+ /* non-DT */
#ifdef CONFIG_ARCH_LPC32XX_MII_SUPPORT
return PHY_INTERFACE_MODE_MII;
#else
@@ -354,12 +359,16 @@ static inline phy_interface_t lpc_phy_in
#endif
}
-static inline int use_iram_for_net(void)
+static bool use_iram_for_net(struct device *dev)
{
+ if (dev && dev->of_node)
+ return of_property_read_bool(dev->of_node, "use-iram");
+
+ /* non-DT */
#ifdef CONFIG_ARCH_LPC32XX_IRAM_FOR_NET
- return 1;
+ return true;
#else
- return 0;
+ return false;
#endif
}
@@ -664,7 +673,7 @@ static void __lpc_eth_init(struct netdat
LPC_ENET_CLRT(pldat->net_base));
writel(LPC_IPGR_LOAD_PART2(0x12), LPC_ENET_IPGR(pldat->net_base));
- if (lpc_phy_interface_mode() == PHY_INTERFACE_MODE_MII)
+ if (lpc_phy_interface_mode(&pldat->pdev->dev) == PHY_INTERFACE_MODE_MII)
writel(LPC_COMMAND_PASSRUNTFRAME,
LPC_ENET_COMMAND(pldat->net_base));
else {
@@ -804,12 +813,13 @@ static int lpc_mii_probe(struct net_devi
}
/* Attach to the PHY */
- if (lpc_phy_interface_mode() == PHY_INTERFACE_MODE_MII)
+ if (lpc_phy_interface_mode(&pldat->pdev->dev) == PHY_INTERFACE_MODE_MII)
netdev_info(ndev, "using MII interface\n");
else
netdev_info(ndev, "using RMII interface\n");
phydev = phy_connect(ndev, dev_name(&phydev->dev),
- &lpc_handle_link_change, 0, lpc_phy_interface_mode());
+ &lpc_handle_link_change, 0,
+ lpc_phy_interface_mode(&pldat->pdev->dev));
if (IS_ERR(phydev)) {
netdev_err(ndev, "Could not attach to PHY\n");
@@ -843,7 +853,7 @@ static int lpc_mii_init(struct netdata_l
}
/* Setup MII mode */
- if (lpc_phy_interface_mode() == PHY_INTERFACE_MODE_MII)
+ if (lpc_phy_interface_mode(&pldat->pdev->dev) == PHY_INTERFACE_MODE_MII)
writel(LPC_COMMAND_PASSRUNTFRAME,
LPC_ENET_COMMAND(pldat->net_base));
else {
@@ -1315,18 +1325,26 @@ static const struct net_device_ops lpc_n
static int lpc_eth_drv_probe(struct platform_device *pdev)
{
struct resource *res;
- struct resource *dma_res;
struct net_device *ndev;
struct netdata_local *pldat;
struct phy_device *phydev;
dma_addr_t dma_handle;
int irq, ret;
+ u32 tmp;
+
+ /* Setup network interface for RMII or MII mode */
+ tmp = __raw_readl(LPC32XX_CLKPWR_MACCLK_CTRL);
+ tmp &= ~LPC32XX_CLKPWR_MACCTRL_PINS_MSK;
+ if (lpc_phy_interface_mode(&pdev->dev) == PHY_INTERFACE_MODE_MII)
+ tmp |= LPC32XX_CLKPWR_MACCTRL_USE_MII_PINS;
+ else
+ tmp |= LPC32XX_CLKPWR_MACCTRL_USE_RMII_PINS;
+ __raw_writel(tmp, LPC32XX_CLKPWR_MACCLK_CTRL);
/* Get platform resources */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- dma_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
irq = platform_get_irq(pdev, 0);
- if ((!res) || (!dma_res) || (irq < 0) || (irq >= NR_IRQS)) {
+ if ((!res) || (irq < 0) || (irq >= NR_IRQS)) {
dev_err(&pdev->dev, "error getting resources.\n");
ret = -ENXIO;
goto err_exit;
@@ -1389,17 +1407,19 @@ static int lpc_eth_drv_probe(struct plat
sizeof(struct txrx_desc_t) + sizeof(struct rx_status_t));
pldat->dma_buff_base_v = 0;
- if (use_iram_for_net()) {
- dma_handle = dma_res->start;
+ if (use_iram_for_net(&pldat->pdev->dev)) {
+ dma_handle = LPC32XX_IRAM_BASE;
if (pldat->dma_buff_size <= lpc32xx_return_iram_size())
pldat->dma_buff_base_v =
- io_p2v(dma_res->start);
+ io_p2v(LPC32XX_IRAM_BASE);
else
netdev_err(ndev,
"IRAM not big enough for net buffers, using SDRAM instead.\n");
}
if (pldat->dma_buff_base_v == 0) {
+ pldat->pdev->dev.coherent_dma_mask = 0xFFFFFFFF;
+ pldat->pdev->dev.dma_mask = &pldat->pdev->dev.coherent_dma_mask;
pldat->dma_buff_size = PAGE_ALIGN(pldat->dma_buff_size);
/* Allocate a chunk of memory for the DMA ethernet buffers
@@ -1488,7 +1508,7 @@ err_out_unregister_netdev:
platform_set_drvdata(pdev, NULL);
unregister_netdev(ndev);
err_out_dma_unmap:
- if (!use_iram_for_net() ||
+ if (!use_iram_for_net(&pldat->pdev->dev) ||
pldat->dma_buff_size > lpc32xx_return_iram_size())
dma_free_coherent(&pldat->pdev->dev, pldat->dma_buff_size,
pldat->dma_buff_base_v,
@@ -1515,7 +1535,7 @@ static int lpc_eth_drv_remove(struct pla
unregister_netdev(ndev);
platform_set_drvdata(pdev, NULL);
- if (!use_iram_for_net() ||
+ if (!use_iram_for_net(&pldat->pdev->dev) ||
pldat->dma_buff_size > lpc32xx_return_iram_size())
dma_free_coherent(&pldat->pdev->dev, pldat->dma_buff_size,
pldat->dma_buff_base_v,
@@ -1584,6 +1604,14 @@ static int lpc_eth_drv_resume(struct pla
}
#endif
+#ifdef CONFIG_OF
+static const struct of_device_id lpc_eth_match[] = {
+ { .compatible = "nxp,lpc-eth" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, lpc_eth_match);
+#endif
+
static struct platform_driver lpc_eth_driver = {
.probe = lpc_eth_drv_probe,
.remove = __devexit_p(lpc_eth_drv_remove),
@@ -1593,6 +1621,7 @@ static struct platform_driver lpc_eth_dr
#endif
.driver = {
.name = MODNAME,
+ .of_match_table = of_match_ptr(lpc_eth_match),
},
};
^ permalink raw reply
* [PATCH v3 2/8] rtc: Add device tree support for LPC32xx
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
This patch adds device tree support for rtc-lpc32xx.c
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt | 15 +++++++++++++++
drivers/rtc/rtc-lpc32xx.c | 12 +++++++++++-
2 files changed, 26 insertions(+), 1 deletion(-)
--- /dev/null
+++ linux-2.6/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt
@@ -0,0 +1,15 @@
+* NXP LPC32xx SoC Real Time Clock controller
+
+Required properties:
+- compatible: must be "nxp,lpc32xx-rtc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The RTC interrupt
+
+Example:
+
+ rtc@40024000 {
+ compatible = "nxp,lpc32xx-rtc";
+ reg = <0x40024000 0x1000>;
+ interrupts = <52 0>;
+ };
--- linux-2.6.orig/drivers/rtc/rtc-lpc32xx.c
+++ linux-2.6/drivers/rtc/rtc-lpc32xx.c
@@ -19,6 +19,7 @@
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/io.h>
+#include <linux/of.h>
/*
* Clock and Power control register offsets
@@ -386,13 +387,22 @@ static const struct dev_pm_ops lpc32xx_r
#define LPC32XX_RTC_PM_OPS NULL
#endif
+#ifdef CONFIG_OF
+static const struct of_device_id lpc32xx_rtc_match[] = {
+ { .compatible = "nxp,lpc32xx-rtc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, lpc32xx_rtc_match);
+#endif
+
static struct platform_driver lpc32xx_rtc_driver = {
.probe = lpc32xx_rtc_probe,
.remove = __devexit_p(lpc32xx_rtc_remove),
.driver = {
.name = RTC_NAME,
.owner = THIS_MODULE,
- .pm = LPC32XX_RTC_PM_OPS
+ .pm = LPC32XX_RTC_PM_OPS,
+ .of_match_table = of_match_ptr(lpc32xx_rtc_match),
},
};
^ permalink raw reply
* [PATCH v3 1/8] iio: Add device tree support to LPC32xx ADC
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
In-Reply-To: <1333528480-17134-1-git-send-email-stigge@antcom.de>
This patch adds device tree support to the LPC32xx's ADC.
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
Applies to v3.4-rc1
Documentation/devicetree/bindings/staging/iio/adc/lpc32xx-adc.txt | 16 ++++++++++
drivers/staging/iio/adc/lpc32xx_adc.c | 10 ++++++
2 files changed, 26 insertions(+)
--- /dev/null
+++ linux-2.6/Documentation/devicetree/bindings/staging/iio/adc/lpc32xx-adc.txt
@@ -0,0 +1,16 @@
+* NXP LPC32xx SoC ADC controller
+
+Required properties:
+- compatible: must be "nxp,lpc32xx-adc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: The ADC interrupt
+
+Example:
+
+ adc@40048000 {
+ compatible = "nxp,lpc32xx-adc";
+ reg = <0x40048000 0x1000>;
+ interrupt-parent = <&mic>;
+ interrupts = <39 0>;
+ };
--- linux-2.6.orig/drivers/staging/iio/adc/lpc32xx_adc.c
+++ linux-2.6/drivers/staging/iio/adc/lpc32xx_adc.c
@@ -30,6 +30,7 @@
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/completion.h>
+#include <linux/of.h>
#include "../iio.h"
#include "../sysfs.h"
@@ -221,12 +222,21 @@ static int __devexit lpc32xx_adc_remove(
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id lpc32xx_adc_match[] = {
+ { .compatible = "nxp,lpc32xx-adc" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, lpc32xx_adc_match);
+#endif
+
static struct platform_driver lpc32xx_adc_driver = {
.probe = lpc32xx_adc_probe,
.remove = __devexit_p(lpc32xx_adc_remove),
.driver = {
.name = MOD_NAME,
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(lpc32xx_adc_match),
},
};
^ permalink raw reply
* [PATCH v3 0/8] arm: lpc32xx: Device tree support
From: Roland Stigge @ 2012-04-04 8:34 UTC (permalink / raw)
To: arm, linux-arm-kernel, linux-i2c, linux-kernel, w.sang,
srinivas.bakki, kevin.wells, gregkh, netdev, rtc-linux, a.zummo,
linux-watchdog, wim, jonsmirl
Cc: Roland Stigge
This is the first series of patches to introduce device tree support for the
LPC32xx SoC. This series includes patches for the various subsystems to support
device tree to be used later by the machine's initialization.
The patches apply to various subsystems:
* staging/iio/adc (1)
* rtc (1)
* net (1)
* wdt (1)
* i2c (4)
* arm-soc (i2c related in the former, to be merged via i2c, as suggested by
Arnd Bergmann)
Based on v3.4-rc1
You can also pull from
git://git.antcom.de/linux-2.6 lpc32xx/dt
I'm CC'ing the various subsystem maintainers and lists who can each see what's
going on and please pick their respective subsystem's changes. - Thanks!
Changes since patch v2:
* net: Use of_property_read_bool()
* net: Fixed breakage with non-DT board (iram and mii options)
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
--
Roland Stigge (8):
iio: Add device tree support to LPC32xx ADC
rtc: Add device tree support for LPC32xx
net: Add device tree support to LPC32xx
wdt: Device tree support for pnx4008-wdt
i2c-pnx.c: Fix suspend
i2c-pnx.c: Use resources in platforms
i2c-pnx.c: Remove duplicated i2c.h
i2c: Add device tree support to i2c-pnx.c
Documentation/devicetree/bindings/i2c/pnx.txt | 40 ++
Documentation/devicetree/bindings/net/lpc-eth.txt | 24 +
Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt | 15
Documentation/devicetree/bindings/staging/iio/adc/lpc32xx-adc.txt | 16
Documentation/devicetree/bindings/watchdog/pnx4008-wdt.txt | 13
arch/arm/mach-lpc32xx/common.c | 75 ++--
arch/arm/mach-lpc32xx/include/mach/i2c.h | 63 ---
arch/arm/mach-pnx4008/i2c.c | 64 ++-
arch/arm/mach-pnx4008/include/mach/i2c.h | 64 ---
drivers/i2c/busses/i2c-pnx.c | 164 +++++++---
drivers/net/ethernet/nxp/lpc_eth.c | 73 ++--
drivers/rtc/rtc-lpc32xx.c | 12
drivers/staging/iio/adc/lpc32xx_adc.c | 10
drivers/watchdog/pnx4008_wdt.c | 10
include/linux/i2c-pnx.h | 10
15 files changed, 512 insertions(+), 268 deletions(-)
^ permalink raw reply
* Re: [net-next 0/8][pull request] Intel Wired LAN Driver Update
From: David Miller @ 2012-04-04 8:26 UTC (permalink / raw)
To: jeffrey.t.kirsher; +Cc: netdev, gospo, sassmann
In-Reply-To: <1333526160-24937-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Wed, 4 Apr 2012 00:55:52 -0700
> This series of patches contains updates for e1000, e1000e, igb and
> ixgbe. The e1000 patch finishes up the addition of RXALL support
> flag from Ben Greear. The 2 igb patches adds the PTP support
> from Richard Cochran. The remaining patches for e1000e and ixgbe
> are cleanup patches (and rev the e1000e driver).
>
> The following are changes since commit 68df25d6c556c4df4dad32a0585317eab356e325:
> bnx2x: Change to driver version 1.72.10-0
> and are available in the git repository at:
> git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next master
Pulled, thanks Jeff.
^ permalink raw reply
* [PATCH] scpt: Allow struct sctp_event_subscribe to grow without breaking binaries
From: Thomas Graf @ 2012-04-04 8:17 UTC (permalink / raw)
To: davem; +Cc: vladislav.yasevich, linux-sctp, netdev
getsockopt(..., SCTP_EVENTS, ...) performs a length check and returns
an error if the user provides less bytes than the size of struct
sctp_event_subscribe.
Struct sctp_event_subscribe needs to be extended by an u8 for every
new event or notification type that is added.
This obviously makes getsockopt fail for binaries that are compiled
against an older versions of <net/sctp/user.h> which do not contain
all event types.
This patch changes getsockopt behaviour to no longer return an error
if not enough bytes are being provided by the user. Instead, it
returns as much of sctp_event_subscribe as fits into the provided buffer.
This leads to the new behavior that users see what they have been aware
of at compile time.
The setsockopt(..., SCTP_EVENTS, ...) API is already behaving like this.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
---
net/sctp/socket.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 06b42b7..92ba71d 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4133,9 +4133,10 @@ static int sctp_getsockopt_disable_fragments(struct sock *sk, int len,
static int sctp_getsockopt_events(struct sock *sk, int len, char __user *optval,
int __user *optlen)
{
- if (len < sizeof(struct sctp_event_subscribe))
+ if (len <= 0)
return -EINVAL;
- len = sizeof(struct sctp_event_subscribe);
+ if (len > sizeof(struct sctp_event_subscribe))
+ len = sizeof(struct sctp_event_subscribe);
if (put_user(len, optlen))
return -EFAULT;
if (copy_to_user(optval, &sctp_sk(sk)->subscribe, len))
^ permalink raw reply related
* Re: [PATCH] stmmac: re-add IFF_UNICAST_FLT for dwmac1000
From: Marc Kleine-Budde @ 2012-04-04 7:33 UTC (permalink / raw)
To: Giuseppe CAVALLARO; +Cc: rayagond, netdev
In-Reply-To: <4F7BF165.6060106@st.com>
[-- Attachment #1: Type: text/plain, Size: 1610 bytes --]
On 04/04/2012 08:59 AM, Giuseppe CAVALLARO wrote:
> On 4/3/2012 7:44 PM, Marc Kleine-Budde wrote:
>> In commit (bfab27a stmmac: add the experimental PCI support) the
^^^^^^^
>
> I get another patch associated to this commit:
>
> git show db8857b
^^^^^^^
Copy paste problem on your side?
> commit db8857bf5bd888d763e1984f9449d0b824b39ee1
> Author: Florian Fainelli <florian@openwrt.org>
> Date: Mon Jan 9 23:59:20 2012 +0000
>
> stmmac: use an unique MDIO bus name.
>
> Signed-off-by: Florian Fainelli <florian@openwrt.org>
> Signed-off-by: David S. Miller <davem@davemloft.net>
>
>
> maybe, the commit should be:
>
> git-show bfab27a14
^^^^^^^^^
Yes, as I've written in my commit message.
> commit bfab27a146ed4d722c6d399f844f955f29cd2b81
> Author: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
> Date: Wed Dec 21 03:58:19 2011 +0000
>
> stmmac: add the experimental PCI support
>
>
>> IFF_UNICAST_FLT flag has been removed from the stmmac_mac_device_setup()
>> function. This patch re-adds the flag.
>
> Yes this flag was removed by this PCI patch.
> So it makes sense to re-add it!
>
>> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
>
> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Tnx.
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 262 bytes --]
^ permalink raw reply
* [PATCH v2] stmmac: re-add IFF_UNICAST_FLT for dwmac1000
From: Marc Kleine-Budde @ 2012-04-04 8:13 UTC (permalink / raw)
To: peppe.cavallaro; +Cc: rayagond, netdev, eric.dumazet, Marc Kleine-Budde
In commit (bfab27a stmmac: add the experimental PCI support) the
IFF_UNICAST_FLT flag has been removed from the stmmac_mac_device_setup()
function. This patch re-adds the flag.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
---
Changes v1->v2: Fix codingstyle (thanks Eric)
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index e85ffbd..48d56da 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1737,10 +1737,12 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
struct mac_device_info *mac;
/* Identify the MAC HW device */
- if (priv->plat->has_gmac)
+ if (priv->plat->has_gmac) {
+ priv->dev->priv_flags |= IFF_UNICAST_FLT;
mac = dwmac1000_setup(priv->ioaddr);
- else
+ } else {
mac = dwmac100_setup(priv->ioaddr);
+ }
if (!mac)
return -ENOMEM;
--
1.7.4.1
^ permalink raw reply related
* Re: [PATCH net 2/2] net/bonding: correctly proxy slave neigh param setup ndo function
From: Or Gerlitz @ 2012-04-04 8:03 UTC (permalink / raw)
To: Jay Vosburgh; +Cc: davem, roland, netdev, Shlomo Pongratz
In-Reply-To: <10209.1333493626@death.nxdomain>
On 4/4/2012 1:53 AM, Jay Vosburgh wrote:
> Or Gerlitz<ogerlitz@mellanox.com> wrote:
>
>> From: Shlomo Pongratz<shlomop@mellanox.com>
>>
>> The current implemenation was buggy for slaves who use ndo_neigh_setup,
>> since the networking stack invokes the bonding device ndo entry (from
>> neigh_params_alloc) before any devices are enslaved, and the bonding
>> driver can't further delegate the call at that point in time. As a
>> result when bonding IPoIB devices, the neigh_cleanup hasn't been called.
>>
>> Fix that by deferring the actual call into the slave ndo_neigh_setup
> >from the time the bonding neigh_setup is called.
>>
>> Signed-off-by: Shlomo Pongratz<shlomop@mellanox.com>
>> ---
>> drivers/net/bonding/bond_main.c | 51 ++++++++++++++++++++++++++++++++------
>> 1 files changed, 43 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>> index b0a278d..2eed155 100644
>> --- a/drivers/net/bonding/bond_main.c
>> +++ b/drivers/net/bonding/bond_main.c
>> @@ -3707,17 +3707,52 @@ static void bond_set_multicast_list(struct net_device *bond_dev)
>> read_unlock(&bond->lock);
>> }
>>
>> -static int bond_neigh_setup(struct net_device *dev, struct neigh_parms *parms)
>> +static int bond_neigh_init(struct neighbour *n)
>> {
>> - struct bonding *bond = netdev_priv(dev);
>> + struct bonding *bond = netdev_priv(n->dev);
>> struct slave *slave = bond->first_slave;
>> + const struct net_device_ops *slave_ops;
>> + struct neigh_parms parms;
>> + int ret;
>> +
>> + if (!slave)
>> + return 0;
>> +
>> + slave_ops = slave->dev->netdev_ops;
>> +
>> + if (!slave_ops->ndo_neigh_setup)
>> + return 0;
>> +
>> + parms.neigh_setup = NULL;
>> + parms.neigh_cleanup = NULL;
>> + ret = slave_ops->ndo_neigh_setup(slave->dev,&parms);
>> + if (ret)
>> + return ret;
>> +
>> + /*
>> + * must bind here to the slave clenaup. Since when last slave is removed
>> + * there will be no slave device to dereference in a bonding
>> + * neigh_cleanup function that we have could add.
>> + */
>> + n->parms->neigh_cleanup = parms.neigh_cleanup;
>
> I'd write this comment as:
>
> /* Assign slave's neigh_cleanup to neighbour in case cleanup is
> * called after bond has been destroyed. Assumes that all slaves
> * utilize the same neigh_cleanup (true at this writing as only user
> * is ipoib).
> */
>
> I.e., this logic works only because there cannot currently be a
> situation wherein two slaves have different neigh_cleanup functions
> (including one slave with a neigh_cleanup, and another without).
Jay, we do need that proxy-ing for the specific case of deleting the
last slave, since in bond_release
the address change and the event emission happen --after-- calling
bond_detach_slave. Still, will pick
your phrasing for the comment and replace "after bond has been
destroyed" with "after last slave has been detached"
>
> + /* Does slave implement neigh_setup ? */
> + if (!parms.neigh_setup)
> + return 0;
>
> I don't think this comment is necessary.
okay, will remove
Or.
^ permalink raw reply
* Re: [PATCH net 1/2] net/bonding: emit address change event in more places
From: Or Gerlitz @ 2012-04-04 7:57 UTC (permalink / raw)
To: Jay Vosburgh; +Cc: davem, roland, netdev, Shlomo Pongratz
In-Reply-To: <9859.1333492106@death.nxdomain>
On 4/4/2012 1:28 AM, Jay Vosburgh wrote:
> Is the bond_release_all notifier call actually necessary in your
> testing? The bond itself is destroyed immediately after
> bond_release_all returns, so I would expect the neighbours to be
> deleted then. For that path we probably don't need to zero the mac at
> all (or compute features, for that matter).
yep, you're right, will remove this extra emitting of event and resend,
thanks.
Or.
^ permalink raw reply
* [net-next 7/8] igb: add PTP Hardware Clock code
From: Jeff Kirsher @ 2012-04-04 7:55 UTC (permalink / raw)
To: davem; +Cc: Richard Cochran, netdev, gospo, sassmann, Jeff Kirsher
In-Reply-To: <1333526160-24937-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Richard Cochran <richardcochran@gmail.com>
This patch adds a source file implementing a PHC. Only the basic
clock operations have been implemented, although the hardware
would offer some ancillary functions. The code is fairly self
contained and is not yet used in the main igb driver.
Every timestamp and clock read operation must consult the overflow
counter to form a correct time value. Access to the counter is
protected by a spin lock, and the counter is implemented using the
standard cyclecounter/timecounter code.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/igb/igb.h | 8 +
drivers/net/ethernet/intel/igb/igb_ptp.c | 322 ++++++++++++++++++++++++++++++
2 files changed, 330 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/ethernet/intel/igb/igb_ptp.c
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 8e33bdd..f0265e8 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -37,6 +37,7 @@
#include <linux/clocksource.h>
#include <linux/timecompare.h>
#include <linux/net_tstamp.h>
+#include <linux/ptp_clock_kernel.h>
#include <linux/bitops.h>
#include <linux/if_vlan.h>
@@ -364,6 +365,13 @@ struct igb_adapter {
u32 wvbr;
int node;
u32 *shadow_vfta;
+
+ struct ptp_clock *ptp_clock;
+ struct ptp_clock_info caps;
+ struct delayed_work overflow_work;
+ spinlock_t tmreg_lock;
+ struct cyclecounter cc;
+ struct timecounter tc;
};
#define IGB_FLAG_HAS_MSI (1 << 0)
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
new file mode 100644
index 0000000..c8254cf
--- /dev/null
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -0,0 +1,322 @@
+/*
+ * PTP Hardware Clock (PHC) driver for the Intel 82576 and 82580
+ *
+ * Copyright (C) 2011 Richard Cochran <richardcochran@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/pci.h>
+
+#include "igb.h"
+
+#define INCVALUE_MASK 0x7fffffff
+#define ISGN 0x80000000
+
+/*
+ * Neither the 82576 nor the 82580 offer registers wide enough to hold
+ * nanoseconds time values for very long. For the 82580, SYSTIM always
+ * counts nanoseconds, but the upper 24 bits are not availible. The
+ * frequency is adjusted by changing the 32 bit fractional nanoseconds
+ * register, TIMINCA.
+ *
+ * For the 82576, the SYSTIM register time unit is affect by the
+ * choice of the 24 bit TININCA:IV (incvalue) field. Five bits of this
+ * field are needed to provide the nominal 16 nanosecond period,
+ * leaving 19 bits for fractional nanoseconds.
+ *
+ *
+ * SYSTIMH SYSTIML
+ * +--------------+ +---+---+------+
+ * 82576 | 32 | | 8 | 5 | 19 |
+ * +--------------+ +---+---+------+
+ * \________ 45 bits _______/ fract
+ *
+ * +----------+---+ +--------------+
+ * 82580 | 24 | 8 | | 32 |
+ * +----------+---+ +--------------+
+ * reserved \______ 40 bits _____/
+ *
+ *
+ * The 45 bit 82576 SYSTIM overflows every
+ * 2^45 * 10^-9 / 3600 = 9.77 hours.
+ *
+ * The 40 bit 82580 SYSTIM overflows every
+ * 2^40 * 10^-9 / 60 = 18.3 minutes.
+ */
+
+#define IGB_OVERFLOW_PERIOD (HZ * 60 * 9)
+#define INCPERIOD_82576 (1 << E1000_TIMINCA_16NS_SHIFT)
+#define INCVALUE_82576_MASK ((1 << E1000_TIMINCA_16NS_SHIFT) - 1)
+#define INCVALUE_82576 (16 << IGB_82576_TSYNC_SHIFT)
+#define IGB_NBITS_82580 40
+
+/*
+ * SYSTIM read access for the 82576
+ */
+
+static cycle_t igb_82576_systim_read(const struct cyclecounter *cc)
+{
+ u64 val;
+ u32 lo, hi;
+ struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
+ struct e1000_hw *hw = &igb->hw;
+
+ lo = rd32(E1000_SYSTIML);
+ hi = rd32(E1000_SYSTIMH);
+
+ val = ((u64) hi) << 32;
+ val |= lo;
+
+ return val;
+}
+
+/*
+ * SYSTIM read access for the 82580
+ */
+
+static cycle_t igb_82580_systim_read(const struct cyclecounter *cc)
+{
+ u64 val;
+ u32 lo, hi, jk;
+ struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
+ struct e1000_hw *hw = &igb->hw;
+
+ jk = rd32(E1000_SYSTIMR);
+ lo = rd32(E1000_SYSTIML);
+ hi = rd32(E1000_SYSTIMH);
+
+ val = ((u64) hi) << 32;
+ val |= lo;
+
+ return val;
+}
+
+/*
+ * PTP clock operations
+ */
+
+static int ptp_82576_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+{
+ u64 rate;
+ u32 incvalue;
+ int neg_adj = 0;
+ struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+ struct e1000_hw *hw = &igb->hw;
+
+ if (ppb < 0) {
+ neg_adj = 1;
+ ppb = -ppb;
+ }
+ rate = ppb;
+ rate <<= 14;
+ rate = div_u64(rate, 1953125);
+
+ incvalue = 16 << IGB_82576_TSYNC_SHIFT;
+
+ if (neg_adj)
+ incvalue -= rate;
+ else
+ incvalue += rate;
+
+ wr32(E1000_TIMINCA, INCPERIOD_82576 | (incvalue & INCVALUE_82576_MASK));
+
+ return 0;
+}
+
+static int ptp_82580_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
+{
+ u64 rate;
+ u32 inca;
+ int neg_adj = 0;
+ struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+ struct e1000_hw *hw = &igb->hw;
+
+ if (ppb < 0) {
+ neg_adj = 1;
+ ppb = -ppb;
+ }
+ rate = ppb;
+ rate <<= 26;
+ rate = div_u64(rate, 1953125);
+
+ inca = rate & INCVALUE_MASK;
+ if (neg_adj)
+ inca |= ISGN;
+
+ wr32(E1000_TIMINCA, inca);
+
+ return 0;
+}
+
+static int igb_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+ s64 now;
+ unsigned long flags;
+ struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+
+ spin_lock_irqsave(&igb->tmreg_lock, flags);
+
+ now = timecounter_read(&igb->tc);
+ now += delta;
+ timecounter_init(&igb->tc, &igb->cc, now);
+
+ spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+
+ return 0;
+}
+
+static int igb_gettime(struct ptp_clock_info *ptp, struct timespec *ts)
+{
+ u64 ns;
+ u32 remainder;
+ unsigned long flags;
+ struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+
+ spin_lock_irqsave(&igb->tmreg_lock, flags);
+
+ ns = timecounter_read(&igb->tc);
+
+ spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+
+ ts->tv_sec = div_u64_rem(ns, 1000000000, &remainder);
+ ts->tv_nsec = remainder;
+
+ return 0;
+}
+
+static int igb_settime(struct ptp_clock_info *ptp, const struct timespec *ts)
+{
+ u64 ns;
+ unsigned long flags;
+ struct igb_adapter *igb = container_of(ptp, struct igb_adapter, caps);
+
+ ns = ts->tv_sec * 1000000000ULL;
+ ns += ts->tv_nsec;
+
+ spin_lock_irqsave(&igb->tmreg_lock, flags);
+
+ timecounter_init(&igb->tc, &igb->cc, ns);
+
+ spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+
+ return 0;
+}
+
+static int ptp_82576_enable(struct ptp_clock_info *ptp,
+ struct ptp_clock_request *rq, int on)
+{
+ return -EOPNOTSUPP;
+}
+
+static int ptp_82580_enable(struct ptp_clock_info *ptp,
+ struct ptp_clock_request *rq, int on)
+{
+ return -EOPNOTSUPP;
+}
+
+static void igb_overflow_check(struct work_struct *work)
+{
+ struct timespec ts;
+ struct igb_adapter *igb =
+ container_of(work, struct igb_adapter, overflow_work.work);
+
+ igb_gettime(&igb->caps, &ts);
+
+ pr_debug("igb overflow check at %ld.%09lu\n", ts.tv_sec, ts.tv_nsec);
+
+ schedule_delayed_work(&igb->overflow_work, IGB_OVERFLOW_PERIOD);
+}
+
+void igb_ptp_init(struct igb_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ switch (hw->mac.type) {
+ case e1000_i350:
+ case e1000_82580:
+ adapter->caps.owner = THIS_MODULE;
+ strcpy(adapter->caps.name, "igb-82580");
+ adapter->caps.max_adj = 62499999;
+ adapter->caps.n_ext_ts = 0;
+ adapter->caps.pps = 0;
+ adapter->caps.adjfreq = ptp_82580_adjfreq;
+ adapter->caps.adjtime = igb_adjtime;
+ adapter->caps.gettime = igb_gettime;
+ adapter->caps.settime = igb_settime;
+ adapter->caps.enable = ptp_82580_enable;
+ adapter->cc.read = igb_82580_systim_read;
+ adapter->cc.mask = CLOCKSOURCE_MASK(IGB_NBITS_82580);
+ adapter->cc.mult = 1;
+ adapter->cc.shift = 0;
+ /* Enable the timer functions by clearing bit 31. */
+ wr32(E1000_TSAUXC, 0x0);
+ break;
+
+ case e1000_82576:
+ adapter->caps.owner = THIS_MODULE;
+ strcpy(adapter->caps.name, "igb-82576");
+ adapter->caps.max_adj = 1000000000;
+ adapter->caps.n_ext_ts = 0;
+ adapter->caps.pps = 0;
+ adapter->caps.adjfreq = ptp_82576_adjfreq;
+ adapter->caps.adjtime = igb_adjtime;
+ adapter->caps.gettime = igb_gettime;
+ adapter->caps.settime = igb_settime;
+ adapter->caps.enable = ptp_82576_enable;
+ adapter->cc.read = igb_82576_systim_read;
+ adapter->cc.mask = CLOCKSOURCE_MASK(64);
+ adapter->cc.mult = 1;
+ adapter->cc.shift = IGB_82576_TSYNC_SHIFT;
+ /* Dial the nominal frequency. */
+ wr32(E1000_TIMINCA, INCPERIOD_82576 | INCVALUE_82576);
+ break;
+
+ default:
+ adapter->ptp_clock = NULL;
+ return;
+ }
+
+ wrfl();
+
+ timecounter_init(&adapter->tc, &adapter->cc,
+ ktime_to_ns(ktime_get_real()));
+
+ INIT_DELAYED_WORK(&adapter->overflow_work, igb_overflow_check);
+
+ spin_lock_init(&adapter->tmreg_lock);
+
+ schedule_delayed_work(&adapter->overflow_work, IGB_OVERFLOW_PERIOD);
+
+ adapter->ptp_clock = ptp_clock_register(&adapter->caps);
+ if (IS_ERR(adapter->ptp_clock)) {
+ adapter->ptp_clock = NULL;
+ dev_err(&adapter->pdev->dev, "ptp_clock_register failed\n");
+ } else
+ dev_info(&adapter->pdev->dev, "added PHC on %s\n",
+ adapter->netdev->name);
+}
+
+void igb_ptp_remove(struct igb_adapter *adapter)
+{
+ cancel_delayed_work_sync(&adapter->overflow_work);
+
+ if (adapter->ptp_clock) {
+ ptp_clock_unregister(adapter->ptp_clock);
+ dev_info(&adapter->pdev->dev, "removed PHC on %s\n",
+ adapter->netdev->name);
+ }
+}
--
1.7.7.6
^ permalink raw reply related
* [net-next 8/8] igb: offer a PTP Hardware Clock instead of the timecompare method
From: Jeff Kirsher @ 2012-04-04 7:56 UTC (permalink / raw)
To: davem; +Cc: Richard Cochran, netdev, gospo, sassmann, Jeff Kirsher
In-Reply-To: <1333526160-24937-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Richard Cochran <richardcochran@gmail.com>
This commit removes the legacy timecompare code from the igb driver and
offers a tunable PHC instead.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/Kconfig | 11 ++
drivers/net/ethernet/intel/igb/Makefile | 1 +
drivers/net/ethernet/intel/igb/igb.h | 13 ++-
drivers/net/ethernet/intel/igb/igb_main.c | 178 +++--------------------------
drivers/net/ethernet/intel/igb/igb_ptp.c | 59 ++++++++++
5 files changed, 93 insertions(+), 169 deletions(-)
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 7621316..90142aa 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -120,6 +120,17 @@ config IGB_DCA
driver. DCA is a method for warming the CPU cache before data
is used, with the intent of lessening the impact of cache misses.
+config IGB_PTP
+ bool "PTP Hardware Clock (PHC)"
+ default y
+ depends on IGB && PTP_1588_CLOCK
+ ---help---
+ Say Y here if you want to use PTP Hardware Clock (PHC) in the
+ driver. Only the basic clock operations have been implemented.
+
+ Every timestamp and clock read operations must consult the
+ overflow counter to form a correct time value.
+
config IGBVF
tristate "Intel(R) 82576 Virtual Function Ethernet support"
depends on PCI
diff --git a/drivers/net/ethernet/intel/igb/Makefile b/drivers/net/ethernet/intel/igb/Makefile
index 6565c46..4bd16e2 100644
--- a/drivers/net/ethernet/intel/igb/Makefile
+++ b/drivers/net/ethernet/intel/igb/Makefile
@@ -35,3 +35,4 @@ obj-$(CONFIG_IGB) += igb.o
igb-objs := igb_main.o igb_ethtool.o e1000_82575.o \
e1000_mac.o e1000_nvm.o e1000_phy.o e1000_mbx.o
+igb-$(CONFIG_IGB_PTP) += igb_ptp.o
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index f0265e8..3758ad2 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -35,7 +35,6 @@
#include "e1000_82575.h"
#include <linux/clocksource.h>
-#include <linux/timecompare.h>
#include <linux/net_tstamp.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/bitops.h>
@@ -329,9 +328,6 @@ struct igb_adapter {
/* OS defined structs */
struct pci_dev *pdev;
- struct cyclecounter cycles;
- struct timecounter clock;
- struct timecompare compare;
struct hwtstamp_config hwtstamp_config;
spinlock_t stats64_lock;
@@ -386,7 +382,6 @@ struct igb_adapter {
#define IGB_DMCTLX_DCFLUSH_DIS 0x80000000 /* Disable DMA Coal Flush */
#define IGB_82576_TSYNC_SHIFT 19
-#define IGB_82580_TSYNC_SHIFT 24
#define IGB_TS_HDR_LEN 16
enum e1000_state_t {
__IGB_TESTING,
@@ -422,7 +417,15 @@ extern void igb_update_stats(struct igb_adapter *, struct rtnl_link_stats64 *);
extern bool igb_has_link(struct igb_adapter *adapter);
extern void igb_set_ethtool_ops(struct net_device *);
extern void igb_power_up_link(struct igb_adapter *);
+#ifdef CONFIG_IGB_PTP
+extern void igb_ptp_init(struct igb_adapter *adapter);
+extern void igb_ptp_remove(struct igb_adapter *adapter);
+extern void igb_systim_to_hwtstamp(struct igb_adapter *adapter,
+ struct skb_shared_hwtstamps *hwtstamps,
+ u64 systim);
+
+#endif
static inline s32 igb_reset_phy(struct e1000_hw *hw)
{
if (hw->phy.ops.reset)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 5ec3159..f022ff7 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -114,7 +114,6 @@ static void igb_free_all_rx_resources(struct igb_adapter *);
static void igb_setup_mrqc(struct igb_adapter *);
static int igb_probe(struct pci_dev *, const struct pci_device_id *);
static void __devexit igb_remove(struct pci_dev *pdev);
-static void igb_init_hw_timer(struct igb_adapter *adapter);
static int igb_sw_init(struct igb_adapter *);
static int igb_open(struct net_device *);
static int igb_close(struct net_device *);
@@ -565,33 +564,6 @@ exit:
return;
}
-
-/**
- * igb_read_clock - read raw cycle counter (to be used by time counter)
- */
-static cycle_t igb_read_clock(const struct cyclecounter *tc)
-{
- struct igb_adapter *adapter =
- container_of(tc, struct igb_adapter, cycles);
- struct e1000_hw *hw = &adapter->hw;
- u64 stamp = 0;
- int shift = 0;
-
- /*
- * The timestamp latches on lowest register read. For the 82580
- * the lowest register is SYSTIMR instead of SYSTIML. However we never
- * adjusted TIMINCA so SYSTIMR will just read as all 0s so ignore it.
- */
- if (hw->mac.type >= e1000_82580) {
- stamp = rd32(E1000_SYSTIMR) >> 8;
- shift = IGB_82580_TSYNC_SHIFT;
- }
-
- stamp |= (u64)rd32(E1000_SYSTIML) << shift;
- stamp |= (u64)rd32(E1000_SYSTIMH) << (shift + 32);
- return stamp;
-}
-
/**
* igb_get_hw_dev - return device
* used by hardware layer to print debugging information
@@ -2110,9 +2082,11 @@ static int __devinit igb_probe(struct pci_dev *pdev,
}
#endif
+#ifdef CONFIG_IGB_PTP
/* do hw tstamp init after resetting */
- igb_init_hw_timer(adapter);
+ igb_ptp_init(adapter);
+#endif
dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
/* print bus type/speed/width info */
dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
@@ -2184,7 +2158,10 @@ static void __devexit igb_remove(struct pci_dev *pdev)
struct e1000_hw *hw = &adapter->hw;
pm_runtime_get_noresume(&pdev->dev);
+#ifdef CONFIG_IGB_PTP
+ igb_ptp_remove(adapter);
+#endif
/*
* The watchdog timer may be rescheduled, so explicitly
* disable watchdog from being rescheduled.
@@ -2304,112 +2281,6 @@ out:
}
/**
- * igb_init_hw_timer - Initialize hardware timer used with IEEE 1588 timestamp
- * @adapter: board private structure to initialize
- *
- * igb_init_hw_timer initializes the function pointer and values for the hw
- * timer found in hardware.
- **/
-static void igb_init_hw_timer(struct igb_adapter *adapter)
-{
- struct e1000_hw *hw = &adapter->hw;
-
- switch (hw->mac.type) {
- case e1000_i350:
- case e1000_82580:
- memset(&adapter->cycles, 0, sizeof(adapter->cycles));
- adapter->cycles.read = igb_read_clock;
- adapter->cycles.mask = CLOCKSOURCE_MASK(64);
- adapter->cycles.mult = 1;
- /*
- * The 82580 timesync updates the system timer every 8ns by 8ns
- * and the value cannot be shifted. Instead we need to shift
- * the registers to generate a 64bit timer value. As a result
- * SYSTIMR/L/H, TXSTMPL/H, RXSTMPL/H all have to be shifted by
- * 24 in order to generate a larger value for synchronization.
- */
- adapter->cycles.shift = IGB_82580_TSYNC_SHIFT;
- /* disable system timer temporarily by setting bit 31 */
- wr32(E1000_TSAUXC, 0x80000000);
- wrfl();
-
- /* Set registers so that rollover occurs soon to test this. */
- wr32(E1000_SYSTIMR, 0x00000000);
- wr32(E1000_SYSTIML, 0x80000000);
- wr32(E1000_SYSTIMH, 0x000000FF);
- wrfl();
-
- /* enable system timer by clearing bit 31 */
- wr32(E1000_TSAUXC, 0x0);
- wrfl();
-
- timecounter_init(&adapter->clock,
- &adapter->cycles,
- ktime_to_ns(ktime_get_real()));
- /*
- * Synchronize our NIC clock against system wall clock. NIC
- * time stamp reading requires ~3us per sample, each sample
- * was pretty stable even under load => only require 10
- * samples for each offset comparison.
- */
- memset(&adapter->compare, 0, sizeof(adapter->compare));
- adapter->compare.source = &adapter->clock;
- adapter->compare.target = ktime_get_real;
- adapter->compare.num_samples = 10;
- timecompare_update(&adapter->compare, 0);
- break;
- case e1000_82576:
- /*
- * Initialize hardware timer: we keep it running just in case
- * that some program needs it later on.
- */
- memset(&adapter->cycles, 0, sizeof(adapter->cycles));
- adapter->cycles.read = igb_read_clock;
- adapter->cycles.mask = CLOCKSOURCE_MASK(64);
- adapter->cycles.mult = 1;
- /**
- * Scale the NIC clock cycle by a large factor so that
- * relatively small clock corrections can be added or
- * subtracted at each clock tick. The drawbacks of a large
- * factor are a) that the clock register overflows more quickly
- * (not such a big deal) and b) that the increment per tick has
- * to fit into 24 bits. As a result we need to use a shift of
- * 19 so we can fit a value of 16 into the TIMINCA register.
- */
- adapter->cycles.shift = IGB_82576_TSYNC_SHIFT;
- wr32(E1000_TIMINCA,
- (1 << E1000_TIMINCA_16NS_SHIFT) |
- (16 << IGB_82576_TSYNC_SHIFT));
-
- /* Set registers so that rollover occurs soon to test this. */
- wr32(E1000_SYSTIML, 0x00000000);
- wr32(E1000_SYSTIMH, 0xFF800000);
- wrfl();
-
- timecounter_init(&adapter->clock,
- &adapter->cycles,
- ktime_to_ns(ktime_get_real()));
- /*
- * Synchronize our NIC clock against system wall clock. NIC
- * time stamp reading requires ~3us per sample, each sample
- * was pretty stable even under load => only require 10
- * samples for each offset comparison.
- */
- memset(&adapter->compare, 0, sizeof(adapter->compare));
- adapter->compare.source = &adapter->clock;
- adapter->compare.target = ktime_get_real;
- adapter->compare.num_samples = 10;
- timecompare_update(&adapter->compare, 0);
- break;
- case e1000_82575:
- /* 82575 does not support timesync */
- default:
- break;
- }
-
-}
-
-/**
* igb_sw_init - Initialize general software structures (struct igb_adapter)
* @adapter: board private structure to initialize
*
@@ -5718,35 +5589,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
return 0;
}
-/**
- * igb_systim_to_hwtstamp - convert system time value to hw timestamp
- * @adapter: board private structure
- * @shhwtstamps: timestamp structure to update
- * @regval: unsigned 64bit system time value.
- *
- * We need to convert the system time value stored in the RX/TXSTMP registers
- * into a hwtstamp which can be used by the upper level timestamping functions
- */
-static void igb_systim_to_hwtstamp(struct igb_adapter *adapter,
- struct skb_shared_hwtstamps *shhwtstamps,
- u64 regval)
-{
- u64 ns;
-
- /*
- * The 82580 starts with 1ns at bit 0 in RX/TXSTMPL, shift this up to
- * 24 to match clock shift we setup earlier.
- */
- if (adapter->hw.mac.type >= e1000_82580)
- regval <<= IGB_82580_TSYNC_SHIFT;
-
- ns = timecounter_cyc2time(&adapter->clock, regval);
- timecompare_update(&adapter->compare, ns);
- memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps));
- shhwtstamps->hwtstamp = ns_to_ktime(ns);
- shhwtstamps->syststamp = timecompare_transform(&adapter->compare, ns);
-}
-
+#ifdef CONFIG_IGB_PTP
/**
* igb_tx_hwtstamp - utility function which checks for TX time stamp
* @q_vector: pointer to q_vector containing needed info
@@ -5776,6 +5619,7 @@ static void igb_tx_hwtstamp(struct igb_q_vector *q_vector,
skb_tstamp_tx(buffer_info->skb, &shhwtstamps);
}
+#endif
/**
* igb_clean_tx_irq - Reclaim resources after transmit completes
* @q_vector: pointer to q_vector containing needed info
@@ -5819,9 +5663,11 @@ static bool igb_clean_tx_irq(struct igb_q_vector *q_vector)
total_bytes += tx_buffer->bytecount;
total_packets += tx_buffer->gso_segs;
+#ifdef CONFIG_IGB_PTP
/* retrieve hardware timestamp */
igb_tx_hwtstamp(q_vector, tx_buffer);
+#endif
/* free the skb */
dev_kfree_skb_any(tx_buffer->skb);
tx_buffer->skb = NULL;
@@ -5993,6 +5839,7 @@ static inline void igb_rx_hash(struct igb_ring *ring,
skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss);
}
+#ifdef CONFIG_IGB_PTP
static void igb_rx_hwtstamp(struct igb_q_vector *q_vector,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
@@ -6032,6 +5879,7 @@ static void igb_rx_hwtstamp(struct igb_q_vector *q_vector,
igb_systim_to_hwtstamp(adapter, skb_hwtstamps(skb), regval);
}
+#endif
static void igb_rx_vlan(struct igb_ring *ring,
union e1000_adv_rx_desc *rx_desc,
struct sk_buff *skb)
@@ -6142,7 +5990,9 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, int budget)
goto next_desc;
}
+#ifdef CONFIG_IGB_PTP
igb_rx_hwtstamp(q_vector, rx_desc, skb);
+#endif
igb_rx_hash(rx_ring, rx_desc, skb);
igb_rx_checksum(rx_ring, rx_desc, skb);
igb_rx_vlan(rx_ring, rx_desc, skb);
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index c8254cf..c9b71c5 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -27,6 +27,9 @@
#define ISGN 0x80000000
/*
+ * The 82580 timesync updates the system timer every 8ns by 8ns,
+ * and this update value cannot be reprogrammed.
+ *
* Neither the 82576 nor the 82580 offer registers wide enough to hold
* nanoseconds time values for very long. For the 82580, SYSTIM always
* counts nanoseconds, but the upper 24 bits are not availible. The
@@ -38,6 +41,14 @@
* field are needed to provide the nominal 16 nanosecond period,
* leaving 19 bits for fractional nanoseconds.
*
+ * We scale the NIC clock cycle by a large factor so that relatively
+ * small clock corrections can be added or subtracted at each clock
+ * tick. The drawbacks of a large factor are a) that the clock
+ * register overflows more quickly (not such a big deal) and b) that
+ * the increment per tick has to fit into 24 bits. As a result we
+ * need to use a shift of 19 so we can fit a value of 16 into the
+ * TIMINCA register.
+ *
*
* SYSTIMH SYSTIML
* +--------------+ +---+---+------+
@@ -95,6 +106,11 @@ static cycle_t igb_82580_systim_read(const struct cyclecounter *cc)
struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
struct e1000_hw *hw = &igb->hw;
+ /*
+ * The timestamp latches on lowest register read. For the 82580
+ * the lowest register is SYSTIMR instead of SYSTIML. However we only
+ * need to provide nanosecond resolution, so we just ignore it.
+ */
jk = rd32(E1000_SYSTIMR);
lo = rd32(E1000_SYSTIML);
hi = rd32(E1000_SYSTIMH);
@@ -320,3 +336,46 @@ void igb_ptp_remove(struct igb_adapter *adapter)
adapter->netdev->name);
}
}
+
+/**
+ * igb_systim_to_hwtstamp - convert system time value to hw timestamp
+ * @adapter: board private structure
+ * @hwtstamps: timestamp structure to update
+ * @systim: unsigned 64bit system time value.
+ *
+ * We need to convert the system time value stored in the RX/TXSTMP registers
+ * into a hwtstamp which can be used by the upper level timestamping functions.
+ *
+ * The 'tmreg_lock' spinlock is used to protect the consistency of the
+ * system time value. This is needed because reading the 64 bit time
+ * value involves reading two (or three) 32 bit registers. The first
+ * read latches the value. Ditto for writing.
+ *
+ * In addition, here have extended the system time with an overflow
+ * counter in software.
+ **/
+void igb_systim_to_hwtstamp(struct igb_adapter *adapter,
+ struct skb_shared_hwtstamps *hwtstamps,
+ u64 systim)
+{
+ u64 ns;
+ unsigned long flags;
+
+ switch (adapter->hw.mac.type) {
+ case e1000_i350:
+ case e1000_82580:
+ case e1000_82576:
+ break;
+ default:
+ return;
+ }
+
+ spin_lock_irqsave(&adapter->tmreg_lock, flags);
+
+ ns = timecounter_cyc2time(&adapter->tc, systim);
+
+ spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
+
+ memset(hwtstamps, 0, sizeof(*hwtstamps));
+ hwtstamps->hwtstamp = ns_to_ktime(ns);
+}
--
1.7.7.6
^ permalink raw reply related
* [net-next 6/8] ixgbe: consolidate reporting of MSIX vectors into a single function
From: Jeff Kirsher @ 2012-04-04 7:55 UTC (permalink / raw)
To: davem; +Cc: Emil Tantilov, netdev, gospo, sassmann, Jeff Kirsher
In-Reply-To: <1333526160-24937-1-git-send-email-jeffrey.t.kirsher@intel.com>
From: Emil Tantilov <emil.s.tantilov@intel.com>
This patch modifies ixgbe_get_pcie_msix_count_generic() to support
all current HW and removes the 82598 specific function.
- change the type of ixgbe_get_pcie_msix_count_generic() to u16
- include a check to make sure the maximum allowed number of vectors
is not exceeded.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c | 25 +-------------------
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 29 +++++++++++++++++++----
drivers/net/ethernet/intel/ixgbe/ixgbe_common.h | 2 +-
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 4 ++-
4 files changed, 29 insertions(+), 31 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 85d2e2c..56fd468 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -91,29 +91,6 @@ out:
IXGBE_WRITE_REG(hw, IXGBE_GCR, gcr);
}
-/**
- * ixgbe_get_pcie_msix_count_82598 - Gets MSI-X vector count
- * @hw: pointer to hardware structure
- *
- * Read PCIe configuration space, and get the MSI-X vector count from
- * the capabilities table.
- **/
-static u16 ixgbe_get_pcie_msix_count_82598(struct ixgbe_hw *hw)
-{
- struct ixgbe_adapter *adapter = hw->back;
- u16 msix_count;
- pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82598_CAPS,
- &msix_count);
- msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
-
- /* MSI-X count is zero-based in HW, so increment to give proper value */
- msix_count++;
-
- return msix_count;
-}
-
-/**
- */
static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
{
struct ixgbe_mac_info *mac = &hw->mac;
@@ -126,7 +103,7 @@ static s32 ixgbe_get_invariants_82598(struct ixgbe_hw *hw)
mac->num_rar_entries = IXGBE_82598_RAR_ENTRIES;
mac->max_rx_queues = IXGBE_82598_MAX_RX_QUEUES;
mac->max_tx_queues = IXGBE_82598_MAX_TX_QUEUES;
- mac->max_msix_vectors = ixgbe_get_pcie_msix_count_82598(hw);
+ mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);
return 0;
}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 49aa41f..e598881 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -2783,17 +2783,36 @@ san_mac_addr_out:
* Read PCIe configuration space, and get the MSI-X vector count from
* the capabilities table.
**/
-u32 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw)
+u16 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw)
{
struct ixgbe_adapter *adapter = hw->back;
- u16 msix_count;
- pci_read_config_word(adapter->pdev, IXGBE_PCIE_MSIX_82599_CAPS,
- &msix_count);
+ u16 msix_count = 1;
+ u16 max_msix_count;
+ u16 pcie_offset;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_82598EB:
+ pcie_offset = IXGBE_PCIE_MSIX_82598_CAPS;
+ max_msix_count = IXGBE_MAX_MSIX_VECTORS_82598;
+ break;
+ case ixgbe_mac_82599EB:
+ case ixgbe_mac_X540:
+ pcie_offset = IXGBE_PCIE_MSIX_82599_CAPS;
+ max_msix_count = IXGBE_MAX_MSIX_VECTORS_82599;
+ break;
+ default:
+ return msix_count;
+ }
+
+ pci_read_config_word(adapter->pdev, pcie_offset, &msix_count);
msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK;
- /* MSI-X count is zero-based in HW, so increment to give proper value */
+ /* MSI-X count is zero-based in HW */
msix_count++;
+ if (msix_count > max_msix_count)
+ msix_count = max_msix_count;
+
return msix_count;
}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
index 204f062..d6d3432 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
@@ -31,7 +31,7 @@
#include "ixgbe_type.h"
#include "ixgbe.h"
-u32 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw);
+u16 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw);
s32 ixgbe_init_ops_generic(struct ixgbe_hw *hw);
s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw);
s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 8636e83..ffa6679 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -1681,7 +1681,9 @@ enum {
#define IXGBE_DEVICE_CAPS 0x2C
#define IXGBE_SERIAL_NUMBER_MAC_ADDR 0x11
#define IXGBE_PCIE_MSIX_82599_CAPS 0x72
+#define IXGBE_MAX_MSIX_VECTORS_82599 0x40
#define IXGBE_PCIE_MSIX_82598_CAPS 0x62
+#define IXGBE_MAX_MSIX_VECTORS_82598 0x13
/* MSI-X capability fields masks */
#define IXGBE_PCIE_MSIX_TBL_SZ_MASK 0x7FF
@@ -2813,6 +2815,7 @@ struct ixgbe_mac_info {
u16 wwnn_prefix;
/* prefix for World Wide Port Name (WWPN) */
u16 wwpn_prefix;
+ u16 max_msix_vectors;
#define IXGBE_MAX_MTA 128
u32 mta_shadow[IXGBE_MAX_MTA];
s32 mc_filter_type;
@@ -2823,7 +2826,6 @@ struct ixgbe_mac_info {
u32 rx_pb_size;
u32 max_tx_queues;
u32 max_rx_queues;
- u32 max_msix_vectors;
u32 orig_autoc;
u32 orig_autoc2;
bool orig_link_settings_stored;
--
1.7.7.6
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