From aa183323312dbd1457096b4b94ca274b35fc462b Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Sun, 15 Feb 2015 17:44:20 -0200
Subject: ehea: Register memory hotplug, reboot and crash hooks on adapter
 probe

ehea creates memory hotplug, reboot and crash hooks even if there
are no adapters in the box. Just create them when we probe our
first adapter.

[cascardo: use ehea_register_memory_hooks return code]
Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ibm/ehea/ehea_main.c | 246 +++++++++++++++++-------------
 1 file changed, 141 insertions(+), 105 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index e8a1adb7a962..c05e50759621 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -3262,6 +3262,139 @@ static void ehea_remove_device_sysfs(struct platform_device *dev)
 	device_remove_file(&dev->dev, &dev_attr_remove_port);
 }
 
+static int ehea_reboot_notifier(struct notifier_block *nb,
+				unsigned long action, void *unused)
+{
+	if (action == SYS_RESTART) {
+		pr_info("Reboot: freeing all eHEA resources\n");
+		ibmebus_unregister_driver(&ehea_driver);
+	}
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block ehea_reboot_nb = {
+	.notifier_call = ehea_reboot_notifier,
+};
+
+static int ehea_mem_notifier(struct notifier_block *nb,
+			     unsigned long action, void *data)
+{
+	int ret = NOTIFY_BAD;
+	struct memory_notify *arg = data;
+
+	mutex_lock(&dlpar_mem_lock);
+
+	switch (action) {
+	case MEM_CANCEL_OFFLINE:
+		pr_info("memory offlining canceled");
+		/* Fall through: re-add canceled memory block */
+
+	case MEM_ONLINE:
+		pr_info("memory is going online");
+		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
+		if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages))
+			goto out_unlock;
+		ehea_rereg_mrs();
+		break;
+
+	case MEM_GOING_OFFLINE:
+		pr_info("memory is going offline");
+		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
+		if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages))
+			goto out_unlock;
+		ehea_rereg_mrs();
+		break;
+
+	default:
+		break;
+	}
+
+	ehea_update_firmware_handles();
+	ret = NOTIFY_OK;
+
+out_unlock:
+	mutex_unlock(&dlpar_mem_lock);
+	return ret;
+}
+
+static struct notifier_block ehea_mem_nb = {
+	.notifier_call = ehea_mem_notifier,
+};
+
+static void ehea_crash_handler(void)
+{
+	int i;
+
+	if (ehea_fw_handles.arr)
+		for (i = 0; i < ehea_fw_handles.num_entries; i++)
+			ehea_h_free_resource(ehea_fw_handles.arr[i].adh,
+					     ehea_fw_handles.arr[i].fwh,
+					     FORCE_FREE);
+
+	if (ehea_bcmc_regs.arr)
+		for (i = 0; i < ehea_bcmc_regs.num_entries; i++)
+			ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh,
+					      ehea_bcmc_regs.arr[i].port_id,
+					      ehea_bcmc_regs.arr[i].reg_type,
+					      ehea_bcmc_regs.arr[i].macaddr,
+					      0, H_DEREG_BCMC);
+}
+
+static atomic_t ehea_memory_hooks_registered;
+
+/* Register memory hooks on probe of first adapter */
+static int ehea_register_memory_hooks(void)
+{
+	int ret = 0;
+
+	if (atomic_inc_and_test(&ehea_memory_hooks_registered))
+		return 0;
+
+	ret = ehea_create_busmap();
+	if (ret) {
+		pr_info("ehea_create_busmap failed\n");
+		goto out;
+	}
+
+	ret = register_reboot_notifier(&ehea_reboot_nb);
+	if (ret) {
+		pr_info("register_reboot_notifier failed\n");
+		goto out;
+	}
+
+	ret = register_memory_notifier(&ehea_mem_nb);
+	if (ret) {
+		pr_info("register_memory_notifier failed\n");
+		goto out2;
+	}
+
+	ret = crash_shutdown_register(ehea_crash_handler);
+	if (ret) {
+		pr_info("crash_shutdown_register failed\n");
+		goto out3;
+	}
+
+	return 0;
+
+out3:
+	unregister_memory_notifier(&ehea_mem_nb);
+out2:
+	unregister_reboot_notifier(&ehea_reboot_nb);
+out:
+	return ret;
+}
+
+static void ehea_unregister_memory_hooks(void)
+{
+	if (atomic_read(&ehea_memory_hooks_registered))
+		return;
+
+	unregister_reboot_notifier(&ehea_reboot_nb);
+	if (crash_shutdown_unregister(ehea_crash_handler))
+		pr_info("failed unregistering crash handler\n");
+	unregister_memory_notifier(&ehea_mem_nb);
+}
+
 static int ehea_probe_adapter(struct platform_device *dev)
 {
 	struct ehea_adapter *adapter;
@@ -3269,6 +3402,10 @@ static int ehea_probe_adapter(struct platform_device *dev)
 	int ret;
 	int i;
 
+	ret = ehea_register_memory_hooks();
+	if (ret)
+		return ret;
+
 	if (!dev || !dev->dev.of_node) {
 		pr_err("Invalid ibmebus device probed\n");
 		return -EINVAL;
@@ -3392,81 +3529,6 @@ static int ehea_remove(struct platform_device *dev)
 	return 0;
 }
 
-static void ehea_crash_handler(void)
-{
-	int i;
-
-	if (ehea_fw_handles.arr)
-		for (i = 0; i < ehea_fw_handles.num_entries; i++)
-			ehea_h_free_resource(ehea_fw_handles.arr[i].adh,
-					     ehea_fw_handles.arr[i].fwh,
-					     FORCE_FREE);
-
-	if (ehea_bcmc_regs.arr)
-		for (i = 0; i < ehea_bcmc_regs.num_entries; i++)
-			ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh,
-					      ehea_bcmc_regs.arr[i].port_id,
-					      ehea_bcmc_regs.arr[i].reg_type,
-					      ehea_bcmc_regs.arr[i].macaddr,
-					      0, H_DEREG_BCMC);
-}
-
-static int ehea_mem_notifier(struct notifier_block *nb,
-                             unsigned long action, void *data)
-{
-	int ret = NOTIFY_BAD;
-	struct memory_notify *arg = data;
-
-	mutex_lock(&dlpar_mem_lock);
-
-	switch (action) {
-	case MEM_CANCEL_OFFLINE:
-		pr_info("memory offlining canceled");
-		/* Readd canceled memory block */
-	case MEM_ONLINE:
-		pr_info("memory is going online");
-		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
-		if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages))
-			goto out_unlock;
-		ehea_rereg_mrs();
-		break;
-	case MEM_GOING_OFFLINE:
-		pr_info("memory is going offline");
-		set_bit(__EHEA_STOP_XFER, &ehea_driver_flags);
-		if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages))
-			goto out_unlock;
-		ehea_rereg_mrs();
-		break;
-	default:
-		break;
-	}
-
-	ehea_update_firmware_handles();
-	ret = NOTIFY_OK;
-
-out_unlock:
-	mutex_unlock(&dlpar_mem_lock);
-	return ret;
-}
-
-static struct notifier_block ehea_mem_nb = {
-	.notifier_call = ehea_mem_notifier,
-};
-
-static int ehea_reboot_notifier(struct notifier_block *nb,
-				unsigned long action, void *unused)
-{
-	if (action == SYS_RESTART) {
-		pr_info("Reboot: freeing all eHEA resources\n");
-		ibmebus_unregister_driver(&ehea_driver);
-	}
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block ehea_reboot_nb = {
-	.notifier_call = ehea_reboot_notifier,
-};
-
 static int check_module_parm(void)
 {
 	int ret = 0;
@@ -3520,26 +3582,10 @@ static int __init ehea_module_init(void)
 	if (ret)
 		goto out;
 
-	ret = ehea_create_busmap();
-	if (ret)
-		goto out;
-
-	ret = register_reboot_notifier(&ehea_reboot_nb);
-	if (ret)
-		pr_info("failed registering reboot notifier\n");
-
-	ret = register_memory_notifier(&ehea_mem_nb);
-	if (ret)
-		pr_info("failed registering memory remove notifier\n");
-
-	ret = crash_shutdown_register(ehea_crash_handler);
-	if (ret)
-		pr_info("failed registering crash handler\n");
-
 	ret = ibmebus_register_driver(&ehea_driver);
 	if (ret) {
 		pr_err("failed registering eHEA device driver on ebus\n");
-		goto out2;
+		goto out;
 	}
 
 	ret = driver_create_file(&ehea_driver.driver,
@@ -3547,32 +3593,22 @@ static int __init ehea_module_init(void)
 	if (ret) {
 		pr_err("failed to register capabilities attribute, ret=%d\n",
 		       ret);
-		goto out3;
+		goto out2;
 	}
 
 	return ret;
 
-out3:
-	ibmebus_unregister_driver(&ehea_driver);
 out2:
-	unregister_memory_notifier(&ehea_mem_nb);
-	unregister_reboot_notifier(&ehea_reboot_nb);
-	crash_shutdown_unregister(ehea_crash_handler);
+	ibmebus_unregister_driver(&ehea_driver);
 out:
 	return ret;
 }
 
 static void __exit ehea_module_exit(void)
 {
-	int ret;
-
 	driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities);
 	ibmebus_unregister_driver(&ehea_driver);
-	unregister_reboot_notifier(&ehea_reboot_nb);
-	ret = crash_shutdown_unregister(ehea_crash_handler);
-	if (ret)
-		pr_info("failed unregistering crash handler\n");
-	unregister_memory_notifier(&ehea_mem_nb);
+	ehea_unregister_memory_hooks();
 	kfree(ehea_fw_handles.arr);
 	kfree(ehea_bcmc_regs.arr);
 	ehea_destroy_busmap();
-- 
cgit v1.2.3


From 42c972a1f390e3bc51ca1e434b7e28764992067f Mon Sep 17 00:00:00 2001
From: Ben Shelton <ben.shelton@ni.com>
Date: Mon, 16 Feb 2015 13:47:06 -0600
Subject: usb: plusb: Add support for National Instruments host-to-host cable

The National Instruments USB Host-to-Host Cable is based on the Prolific
PL-25A1 chipset.  Add its VID/PID so the plusb driver will recognize it.

Signed-off-by: Ben Shelton <ben.shelton@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/plusb.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c
index 3d18bb0eee85..1bfe0fcaccf5 100644
--- a/drivers/net/usb/plusb.c
+++ b/drivers/net/usb/plusb.c
@@ -134,6 +134,11 @@ static const struct usb_device_id	products [] = {
 }, {
 	USB_DEVICE(0x050d, 0x258a),     /* Belkin F5U258/F5U279 (PL-25A1) */
 	.driver_info =  (unsigned long) &prolific_info,
+}, {
+	USB_DEVICE(0x3923, 0x7825),     /* National Instruments USB
+					 * Host-to-Host Cable
+					 */
+	.driver_info =  (unsigned long) &prolific_info,
 },
 
 	{ },		// END
-- 
cgit v1.2.3


From 54da5a8be3c1e924c35480eb44c6e9b275f6444e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Tue, 17 Feb 2015 09:36:22 -0800
Subject: net: phy: Fix verification of EEE support in phy_init_eee

phy_init_eee uses phy_find_setting(phydev->speed, phydev->duplex)
to find a valid entry in the settings array for the given speed
and duplex value. For full duplex 1000baseT, this will return
the first matching entry, which is the entry for 1000baseKX_Full.

If the phy eee does not support 1000baseKX_Full, this entry will not
match, causing phy_init_eee to fail for no good reason.

Fixes: 9a9c56cb34e6 ("net: phy: fix a bug when verify the EEE support")
Fixes: 3e7077067e80c ("phy: Expand phy speed/duplex settings array")
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/phy.c | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index cdcac6aa4260..52cd8db2c57d 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -235,6 +235,25 @@ static inline unsigned int phy_find_valid(unsigned int idx, u32 features)
 	return idx < MAX_NUM_SETTINGS ? idx : MAX_NUM_SETTINGS - 1;
 }
 
+/**
+ * phy_check_valid - check if there is a valid PHY setting which matches
+ *		     speed, duplex, and feature mask
+ * @speed: speed to match
+ * @duplex: duplex to match
+ * @features: A mask of the valid settings
+ *
+ * Description: Returns true if there is a valid setting, false otherwise.
+ */
+static inline bool phy_check_valid(int speed, int duplex, u32 features)
+{
+	unsigned int idx;
+
+	idx = phy_find_valid(phy_find_setting(speed, duplex), features);
+
+	return settings[idx].speed == speed && settings[idx].duplex == duplex &&
+		(settings[idx].setting & features);
+}
+
 /**
  * phy_sanitize_settings - make sure the PHY is set to supported speed and duplex
  * @phydev: the target phy_device struct
@@ -1045,7 +1064,6 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
 		int eee_lp, eee_cap, eee_adv;
 		u32 lp, cap, adv;
 		int status;
-		unsigned int idx;
 
 		/* Read phy status to properly get the right settings */
 		status = phy_read_status(phydev);
@@ -1077,8 +1095,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable)
 
 		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
 		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
-		idx = phy_find_setting(phydev->speed, phydev->duplex);
-		if (!(lp & adv & settings[idx].setting))
+		if (!phy_check_valid(phydev->speed, phydev->duplex, lp & adv))
 			goto eee_exit_err;
 
 		if (clk_stop_enable) {
-- 
cgit v1.2.3


From f81edc6ac1e1e2e2cbe98bcd6ef5ebb7afb00807 Mon Sep 17 00:00:00 2001
From: Derrick Pallas <pallas@meraki.com>
Date: Wed, 18 Feb 2015 00:50:25 -0800
Subject: ethernet/ixp4xx: prevent allmulti from clobbering promisc

If both promisc and allmulti are set, promisc should trump allmulti and
disable the MAC filter; otherwise, the interface is not really promisc.

Previously, this code checked IFF_ALLMULTI prior to and without regard for
IFF_PROMISC; if both were set, only multicast and direct unicast traffic
would make it through the filter.

Signed-off-by: Derrick Pallas <pallas@meraki.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index f7e0f0f7c2e2..9e16a2819d48 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -938,7 +938,7 @@ static void eth_set_mcast_list(struct net_device *dev)
 	int i;
 	static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
 
-	if (dev->flags & IFF_ALLMULTI) {
+	if ((dev->flags & IFF_ALLMULTI) && !(dev->flags & IFF_PROMISC)) {
 		for (i = 0; i < ETH_ALEN; i++) {
 			__raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
 			__raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
-- 
cgit v1.2.3


From 15added6a5940454e225c09b78837514d35fcf70 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 18 Feb 2015 20:47:30 +0100
Subject: net: smc91x: improve neponset hack

The smc91x driver tries to support multiple platforms at compile
time, but they are mutually exclusive at runtime, and not clearly
defined.

Trying to build for CONFIG_SA1100_ASSABET without CONFIG_ASSABET_NEPONSET
results in this link error:

drivers/built-in.o: In function `smc_drv_probe':
:(.text+0x33310c): undefined reference to `neponset_ncr_frob'

since the neponset_ncr_set function is not defined otherwise.

Similarly, building for both CONFIG_SA1100_ASSABET and CONFIG_SA1100_PLEB
results in a different build error:

smsc/smc91x.c: In function 'smc_drv_probe':
smsc/smc91x.c:2299:2: error: implicit declaration of function 'neponset_ncr_set' [-Werror=implicit-function-declaration]
  neponset_ncr_set(NCR_ENET_OSC_EN);
  ^
smsc/smc91x.c:2299:19: error: 'NCR_ENET_OSC_EN' undeclared (first use in this function)
  neponset_ncr_set(NCR_ENET_OSC_EN);
                   ^

This is an attempt to fix the call site responsible for both
errors, making sure we call the function exactly when the driver
is actually trying to run on the assabet/neponset machine. With
this patch, I no longer see randconfig build errors in this file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 88a55f95fe09..fa3f193b5f4d 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -2355,7 +2355,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 	ret = smc_request_attrib(pdev, ndev);
 	if (ret)
 		goto out_release_io;
-#if defined(CONFIG_SA1100_ASSABET)
+#if defined(CONFIG_ASSABET_NEPONSET) && !defined(CONFIG_SA1100_PLEB)
 	neponset_ncr_set(NCR_ENET_OSC_EN);
 #endif
 	platform_set_drvdata(pdev, ndev);
-- 
cgit v1.2.3


From bf60e50cb3ed50ae536f7655c8af1acda137ea5b Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 18 Feb 2015 20:48:54 +0100
Subject: net/appletalk: LTPC needs virt_to_bus

The ltpc driver is rather outdated and does not get built on most
platforms because it requires the ISA_DMA_API symbol. However
there are some ARM platforms that have ISA_DMA_API but no virt_to_bus,
and they get this build error when enabling the ltpc driver.

drivers/net/appletalk/ltpc.c: In function 'handlefc':
drivers/net/appletalk/ltpc.c:380:2: error: implicit declaration of function 'virt_to_bus' [-Werror=implicit-function-declaration]
  set_dma_addr(dma,virt_to_bus(ltdmacbuf));
  ^

This adds another dependency in Kconfig to avoid that configuration.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/appletalk/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/appletalk/Kconfig b/drivers/net/appletalk/Kconfig
index 4ce6ca5f3d36..dc6b78e5342f 100644
--- a/drivers/net/appletalk/Kconfig
+++ b/drivers/net/appletalk/Kconfig
@@ -40,7 +40,7 @@ config DEV_APPLETALK
 
 config LTPC
 	tristate "Apple/Farallon LocalTalk PC support"
-	depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API
+	depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API && VIRT_TO_BUS
 	help
 	  This allows you to use the AppleTalk PC card to connect to LocalTalk
 	  networks. The card is also known as the Farallon PhoneNet PC card.
-- 
cgit v1.2.3


From f4c2b7a08170dc4e442c4566486e4597af8d72a3 Mon Sep 17 00:00:00 2001
From: Mahesh Bandewar <maheshb@google.com>
Date: Wed, 18 Feb 2015 15:15:57 -0800
Subject: ipvlan: Fix text that talks about ip util support

ipvlan was added into 3.19 release and iproute2 added support
for the same in iproute2-3.19 package.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
CC: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 84673ebcf428..df51d6025a90 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -157,7 +157,7 @@ config IPVLAN
       making it transparent to the connected L2 switch.
 
       Ipvlan devices can be added using the "ip" command from the
-      iproute2 package starting with the iproute2-X.Y.ZZ release:
+      iproute2 package starting with the iproute2-3.19 release:
 
       "ip link add link <main-dev> [ NAME ] type ipvlan"
 
-- 
cgit v1.2.3


From 5a8eeec468f229558322926f28c61bb0769793e9 Mon Sep 17 00:00:00 2001
From: Anish Bhatt <anish@chelsio.com>
Date: Wed, 18 Feb 2015 15:29:45 -0800
Subject: cxgb4: Fix incorrect 'c' suffix to %pI4, use %pISc instead

Issue caught by 0-day kernel test infrastructure. Code changed to use sockaddr
members so that %pISc can be used instead.

Fixes: b5a02f503caa ('cxgb4 : Update ipv6 address handling api')

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c | 57 ++++++++++++++-------------
 drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h |  6 ++-
 2 files changed, 33 insertions(+), 30 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
index 9062a8434246..c308429dd9c7 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.c
@@ -35,10 +35,10 @@ static inline unsigned int ipv6_clip_hash(struct clip_tbl *d, const u32 *key)
 }
 
 static unsigned int clip_addr_hash(struct clip_tbl *ctbl, const u32 *addr,
-				   int addr_len)
+				   u8 v6)
 {
-	return addr_len == 4 ? ipv4_clip_hash(ctbl, addr) :
-				ipv6_clip_hash(ctbl, addr);
+	return v6 ? ipv6_clip_hash(ctbl, addr) :
+			ipv4_clip_hash(ctbl, addr);
 }
 
 static int clip6_get_mbox(const struct net_device *dev,
@@ -78,23 +78,22 @@ int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6)
 	struct clip_entry *ce, *cte;
 	u32 *addr = (u32 *)lip;
 	int hash;
-	int addr_len;
-	int ret = 0;
+	int ret = -1;
 
 	if (!ctbl)
 		return 0;
 
-	if (v6)
-		addr_len = 16;
-	else
-		addr_len = 4;
-
-	hash = clip_addr_hash(ctbl, addr, addr_len);
+	hash = clip_addr_hash(ctbl, addr, v6);
 
 	read_lock_bh(&ctbl->lock);
 	list_for_each_entry(cte, &ctbl->hash_list[hash], list) {
-		if (addr_len == cte->addr_len &&
-		    memcmp(lip, cte->addr, cte->addr_len) == 0) {
+		if (cte->addr6.sin6_family == AF_INET6 && v6)
+			ret = memcmp(lip, cte->addr6.sin6_addr.s6_addr,
+				     sizeof(struct in6_addr));
+		else if (cte->addr.sin_family == AF_INET && !v6)
+			ret = memcmp(lip, (char *)(&cte->addr.sin_addr),
+				     sizeof(struct in_addr));
+		if (!ret) {
 			ce = cte;
 			read_unlock_bh(&ctbl->lock);
 			goto found;
@@ -111,15 +110,20 @@ int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6)
 		spin_lock_init(&ce->lock);
 		atomic_set(&ce->refcnt, 0);
 		atomic_dec(&ctbl->nfree);
-		ce->addr_len = addr_len;
-		memcpy(ce->addr, lip, addr_len);
 		list_add_tail(&ce->list, &ctbl->hash_list[hash]);
 		if (v6) {
+			ce->addr6.sin6_family = AF_INET6;
+			memcpy(ce->addr6.sin6_addr.s6_addr,
+			       lip, sizeof(struct in6_addr));
 			ret = clip6_get_mbox(dev, (const struct in6_addr *)lip);
 			if (ret) {
 				write_unlock_bh(&ctbl->lock);
 				return ret;
 			}
+		} else {
+			ce->addr.sin_family = AF_INET;
+			memcpy((char *)(&ce->addr.sin_addr), lip,
+			       sizeof(struct in_addr));
 		}
 	} else {
 		write_unlock_bh(&ctbl->lock);
@@ -140,19 +144,19 @@ void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6)
 	struct clip_entry *ce, *cte;
 	u32 *addr = (u32 *)lip;
 	int hash;
-	int addr_len;
-
-	if (v6)
-		addr_len = 16;
-	else
-		addr_len = 4;
+	int ret = -1;
 
-	hash = clip_addr_hash(ctbl, addr, addr_len);
+	hash = clip_addr_hash(ctbl, addr, v6);
 
 	read_lock_bh(&ctbl->lock);
 	list_for_each_entry(cte, &ctbl->hash_list[hash], list) {
-		if (addr_len == cte->addr_len &&
-		    memcmp(lip, cte->addr, cte->addr_len) == 0) {
+		if (cte->addr6.sin6_family == AF_INET6 && v6)
+			ret = memcmp(lip, cte->addr6.sin6_addr.s6_addr,
+				     sizeof(struct in6_addr));
+		else if (cte->addr.sin_family == AF_INET && !v6)
+			ret = memcmp(lip, (char *)(&cte->addr.sin_addr),
+				     sizeof(struct in_addr));
+		if (!ret) {
 			ce = cte;
 			read_unlock_bh(&ctbl->lock);
 			goto found;
@@ -249,10 +253,7 @@ int clip_tbl_show(struct seq_file *seq, void *v)
 	for (i = 0 ; i < ctbl->clipt_size;  ++i) {
 		list_for_each_entry(ce, &ctbl->hash_list[i], list) {
 			ip[0] = '\0';
-			if (ce->addr_len == 16)
-				sprintf(ip, "%pI6c", ce->addr);
-			else
-				sprintf(ip, "%pI4c", ce->addr);
+			sprintf(ip, "%pISc", &ce->addr);
 			seq_printf(seq, "%-25s   %u\n", ip,
 				   atomic_read(&ce->refcnt));
 		}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
index 2eaba0161cf8..35eb43c6bcbb 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/clip_tbl.h
@@ -14,8 +14,10 @@ struct clip_entry {
 	spinlock_t lock;	/* Hold while modifying clip reference */
 	atomic_t refcnt;
 	struct list_head list;
-	u32 addr[4];
-	int addr_len;
+	union {
+		struct sockaddr_in addr;
+		struct sockaddr_in6 addr6;
+	};
 };
 
 struct clip_tbl {
-- 
cgit v1.2.3


From ddede6d536d70c4ef2193ca14208db90740fcd22 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 19 Feb 2015 11:09:27 -0800
Subject: net: dsa: bcm_sf2: fix 64-bits register reads

Reading 64-bits register was not working because we inverted the steps
between reading the lower 32-bits of the register and reading the upper
32-bits. Swapping these operations is how the HW guarantees that 64-bits
reads are latched correctly. We only have a handful of 64-bits registers
for now, mostly MIB counters, so the imapct is low.

Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/bcm_sf2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/dsa/bcm_sf2.h b/drivers/net/dsa/bcm_sf2.h
index ee9f650d5026..7b7053d3c5fa 100644
--- a/drivers/net/dsa/bcm_sf2.h
+++ b/drivers/net/dsa/bcm_sf2.h
@@ -105,8 +105,8 @@ static inline u64 name##_readq(struct bcm_sf2_priv *priv, u32 off)	\
 {									\
 	u32 indir, dir;							\
 	spin_lock(&priv->indir_lock);					\
-	indir = reg_readl(priv, REG_DIR_DATA_READ);			\
 	dir = __raw_readl(priv->name + off);				\
+	indir = reg_readl(priv, REG_DIR_DATA_READ);			\
 	spin_unlock(&priv->indir_lock);					\
 	return (u64)indir << 32 | dir;					\
 }									\
-- 
cgit v1.2.3


From 50462ce0052c67b5a06f19fb7c7f308813006879 Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Fri, 20 Feb 2015 19:12:55 +0100
Subject: hso: replace current->state by __set_current_state()

Use helper functions to access current->state.
Direct assignments are prone to races and therefore buggy.

Thanks to Peter Zijlstra for the exact definition of the problem.

Suggested-By: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/hso.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 9cdfb3fe9c15..778e91531fac 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1594,7 +1594,7 @@ hso_wait_modem_status(struct hso_serial *serial, unsigned long arg)
 		}
 		cprev = cnow;
 	}
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&tiocmget->waitq, &wait);
 
 	return ret;
-- 
cgit v1.2.3


From 2c45015a66a171de306e23991fec998667b49acf Mon Sep 17 00:00:00 2001
From: Fabian Frederick <fabf@skynet.be>
Date: Fri, 20 Feb 2015 19:12:56 +0100
Subject: wan: cosa: replace current->state by set_current_state()

Use helper functions to access current->state.
Direct assignments are prone to races and therefore buggy.

current->state = TASK_RUNNING is replaced by __set_current_state()

Thanks to Peter Zijlstra for the exact definition of the problem.

Suggested-By: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-By: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/cosa.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index 83c39e2858bf..88d121d43c08 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -806,21 +806,21 @@ static ssize_t cosa_read(struct file *file,
 	spin_lock_irqsave(&cosa->lock, flags);
 	add_wait_queue(&chan->rxwaitq, &wait);
 	while (!chan->rx_status) {
-		current->state = TASK_INTERRUPTIBLE;
+		set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_irqrestore(&cosa->lock, flags);
 		schedule();
 		spin_lock_irqsave(&cosa->lock, flags);
 		if (signal_pending(current) && chan->rx_status == 0) {
 			chan->rx_status = 1;
 			remove_wait_queue(&chan->rxwaitq, &wait);
-			current->state = TASK_RUNNING;
+			__set_current_state(TASK_RUNNING);
 			spin_unlock_irqrestore(&cosa->lock, flags);
 			mutex_unlock(&chan->rlock);
 			return -ERESTARTSYS;
 		}
 	}
 	remove_wait_queue(&chan->rxwaitq, &wait);
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	kbuf = chan->rxdata;
 	count = chan->rxsize;
 	spin_unlock_irqrestore(&cosa->lock, flags);
@@ -890,14 +890,14 @@ static ssize_t cosa_write(struct file *file,
 	spin_lock_irqsave(&cosa->lock, flags);
 	add_wait_queue(&chan->txwaitq, &wait);
 	while (!chan->tx_status) {
-		current->state = TASK_INTERRUPTIBLE;
+		set_current_state(TASK_INTERRUPTIBLE);
 		spin_unlock_irqrestore(&cosa->lock, flags);
 		schedule();
 		spin_lock_irqsave(&cosa->lock, flags);
 		if (signal_pending(current) && chan->tx_status == 0) {
 			chan->tx_status = 1;
 			remove_wait_queue(&chan->txwaitq, &wait);
-			current->state = TASK_RUNNING;
+			__set_current_state(TASK_RUNNING);
 			chan->tx_status = 1;
 			spin_unlock_irqrestore(&cosa->lock, flags);
 			up(&chan->wsem);
@@ -905,7 +905,7 @@ static ssize_t cosa_write(struct file *file,
 		}
 	}
 	remove_wait_queue(&chan->txwaitq, &wait);
-	current->state = TASK_RUNNING;
+	__set_current_state(TASK_RUNNING);
 	up(&chan->wsem);
 	spin_unlock_irqrestore(&cosa->lock, flags);
 	kfree(kbuf);
-- 
cgit v1.2.3


From 87cda7cb4380fa05b70485b0a57b07d020f5204b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sun, 22 Feb 2015 15:54:29 -0500
Subject: r8169: Revert BQL and xmit_more support.

There are certain regressions which are pointing to
these two commits which we are having a hard time
resolving.  So revert them for now.

Specifically this reverts:

	commit 0bec3b700d106a8b0a34227b2976d1a582f1aab7
	Author: Florian Westphal <fw@strlen.de>
	Date:   Wed Jan 7 10:49:49 2015 +0100

	    r8169: add support for xmit_more

and

	commit 1e918876853aa85435e0f17fd8b4a92dcfff53d6
	Author: Florian Westphal <fw@strlen.de>
	Date:   Wed Oct 1 13:38:03 2014 +0200

	    r8169: add support for Byte Queue Limits

There were some attempts by Eric Dumazet to address some obvious
problems in the TX flow, to see if they would fix the problems,
but none of them seem to help for the regression reporters.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/r8169.c | 30 +++++++-----------------------
 1 file changed, 7 insertions(+), 23 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index ad0020af2193..b1560927abd4 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5067,8 +5067,6 @@ static void rtl_hw_reset(struct rtl8169_private *tp)
 	RTL_W8(ChipCmd, CmdReset);
 
 	rtl_udelay_loop_wait_low(tp, &rtl_chipcmd_cond, 100, 100);
-
-	netdev_reset_queue(tp->dev);
 }
 
 static void rtl_request_uncached_firmware(struct rtl8169_private *tp)
@@ -7049,7 +7047,6 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 	u32 status, len;
 	u32 opts[2];
 	int frags;
-	bool stop_queue;
 
 	if (unlikely(!TX_FRAGS_READY_FOR(tp, skb_shinfo(skb)->nr_frags))) {
 		netif_err(tp, drv, dev, "BUG! Tx Ring full when queue awake!\n");
@@ -7090,8 +7087,6 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
 	txd->opts2 = cpu_to_le32(opts[1]);
 
-	netdev_sent_queue(dev, skb->len);
-
 	skb_tx_timestamp(skb);
 
 	/* Force memory writes to complete before releasing descriptor */
@@ -7106,16 +7101,11 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
 
 	tp->cur_tx += frags + 1;
 
-	stop_queue = !TX_FRAGS_READY_FOR(tp, MAX_SKB_FRAGS);
+	RTL_W8(TxPoll, NPQ);
 
-	if (!skb->xmit_more || stop_queue ||
-	    netif_xmit_stopped(netdev_get_tx_queue(dev, 0))) {
-		RTL_W8(TxPoll, NPQ);
-
-		mmiowb();
-	}
+	mmiowb();
 
-	if (stop_queue) {
+	if (!TX_FRAGS_READY_FOR(tp, MAX_SKB_FRAGS)) {
 		/* Avoid wrongly optimistic queue wake-up: rtl_tx thread must
 		 * not miss a ring update when it notices a stopped queue.
 		 */
@@ -7198,7 +7188,6 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev)
 static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
 {
 	unsigned int dirty_tx, tx_left;
-	unsigned int bytes_compl = 0, pkts_compl = 0;
 
 	dirty_tx = tp->dirty_tx;
 	smp_rmb();
@@ -7222,8 +7211,10 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
 		rtl8169_unmap_tx_skb(&tp->pci_dev->dev, tx_skb,
 				     tp->TxDescArray + entry);
 		if (status & LastFrag) {
-			pkts_compl++;
-			bytes_compl += tx_skb->skb->len;
+			u64_stats_update_begin(&tp->tx_stats.syncp);
+			tp->tx_stats.packets++;
+			tp->tx_stats.bytes += tx_skb->skb->len;
+			u64_stats_update_end(&tp->tx_stats.syncp);
 			dev_kfree_skb_any(tx_skb->skb);
 			tx_skb->skb = NULL;
 		}
@@ -7232,13 +7223,6 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
 	}
 
 	if (tp->dirty_tx != dirty_tx) {
-		netdev_completed_queue(tp->dev, pkts_compl, bytes_compl);
-
-		u64_stats_update_begin(&tp->tx_stats.syncp);
-		tp->tx_stats.packets += pkts_compl;
-		tp->tx_stats.bytes += bytes_compl;
-		u64_stats_update_end(&tp->tx_stats.syncp);
-
 		tp->dirty_tx = dirty_tx;
 		/* Sync with rtl8169_start_xmit:
 		 * - publish dirty_tx ring index (write barrier)
-- 
cgit v1.2.3


From 57e595631904c827cfa1a0f7bbd7cc9a49da5745 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Mon, 23 Feb 2015 14:02:54 +0100
Subject: team: fix possible null pointer dereference in team_handle_frame

Currently following race is possible in team:

CPU0                                        CPU1
                                            team_port_del
                                              team_upper_dev_unlink
                                                priv_flags &= ~IFF_TEAM_PORT
team_handle_frame
  team_port_get_rcu
    team_port_exists
      priv_flags & IFF_TEAM_PORT == 0
    return NULL (instead of port got
                 from rx_handler_data)
                                              netdev_rx_handler_unregister

The thing is that the flag is removed before rx_handler is unregistered.
If team_handle_frame is called in between, team_port_exists returns 0
and team_port_get_rcu will return NULL.
So do not check the flag here. It is guaranteed by netdev_rx_handler_unregister
that team_handle_frame will always see valid rx_handler_data pointer.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Fixes: 3d249d4ca7d0 ("net: introduce ethernet teaming device")
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/team/team.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 0e62274e884a..f1ee71e22241 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -43,9 +43,7 @@
 
 static struct team_port *team_port_get_rcu(const struct net_device *dev)
 {
-	struct team_port *port = rcu_dereference(dev->rx_handler_data);
-
-	return team_port_exists(dev) ? port : NULL;
+	return rcu_dereference(dev->rx_handler_data);
 }
 
 static struct team_port *team_port_get_rtnl(const struct net_device *dev)
-- 
cgit v1.2.3


From fe6e4081a626d2987b73c9b15ed520b4f22d585f Mon Sep 17 00:00:00 2001
From: Vlastimil Setka <setka@vsis.cz>
Date: Mon, 23 Feb 2015 11:27:37 -0600
Subject: altera_tse: Correct typo in obtaining tx_fifo_depth from devicetree

This patch corrects a typo in the way tx_fifo_depth is read from the
devicetree. This patch was submitted by Vlastimil about a week ago,
and is now cleaned up and resubmitted.

Signed-off-by: Vlastimil Setka <setka@vsis.cz>
Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/altera/altera_tse_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 760c72c6e2ac..f3d784a3463d 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -1399,7 +1399,7 @@ static int altera_tse_probe(struct platform_device *pdev)
 	}
 
 	if (of_property_read_u32(pdev->dev.of_node, "tx-fifo-depth",
-				 &priv->rx_fifo_depth)) {
+				 &priv->tx_fifo_depth)) {
 		dev_err(&pdev->dev, "cannot obtain tx-fifo-depth\n");
 		ret = -ENXIO;
 		goto err_free_netdev;
-- 
cgit v1.2.3


From 8d4ac39df09c6f8078af60cd0ddd7b2435728e72 Mon Sep 17 00:00:00 2001
From: Vlastimil Setka <setka@vsis.cz>
Date: Mon, 23 Feb 2015 11:30:29 -0600
Subject: altera_tse: Fixes in NAPI and interrupt handling paths

Incorrect NAPI polling caused WARNING at net/core/dev.c net_rx_action.
Some stability issues were also seen at high throughput and system
load before this patch.

This patch contains several changes in altera_tse_main.c:

- tse_rx() is fixed to not process more than `limit` frames

- tse_poll() is refactored to match NAPI logic
  - only received frames are counted for return value
  - removed bogus condition `(rxcomplete >= budget || txcomplete > 0)`
  - replace by: if (rxcomplete < budget) -> call __napi_complete and enable irq

- altera_isr()
  - replace spin_lock_irqsave() by spin_lock() - we are in isr
  - use spinlocks just over irq manipulation, not over __napi_schedule
  - reset IRQ first, then disable and schedule napi

This is a cleaned up resubmission from Vlastimil's recent submission.

Signed-off-by: Vlastimil Setka <setka@vsis.cz>
Signed-off-by: Roman Pisl <rpisl@kky.zcu.cz>
Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/altera/altera_tse_main.c | 45 +++++++++++++--------------
 1 file changed, 22 insertions(+), 23 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index f3d784a3463d..6725dc00750b 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -376,7 +376,8 @@ static int tse_rx(struct altera_tse_private *priv, int limit)
 	u16 pktlength;
 	u16 pktstatus;
 
-	while ((rxstatus = priv->dmaops->get_rx_status(priv)) != 0) {
+	while (((rxstatus = priv->dmaops->get_rx_status(priv)) != 0) &&
+	       (count < limit))  {
 		pktstatus = rxstatus >> 16;
 		pktlength = rxstatus & 0xffff;
 
@@ -491,28 +492,27 @@ static int tse_poll(struct napi_struct *napi, int budget)
 	struct altera_tse_private *priv =
 			container_of(napi, struct altera_tse_private, napi);
 	int rxcomplete = 0;
-	int txcomplete = 0;
 	unsigned long int flags;
 
-	txcomplete = tse_tx_complete(priv);
+	tse_tx_complete(priv);
 
 	rxcomplete = tse_rx(priv, budget);
 
-	if (rxcomplete >= budget || txcomplete > 0)
-		return rxcomplete;
+	if (rxcomplete < budget) {
 
-	napi_gro_flush(napi, false);
-	__napi_complete(napi);
+		napi_gro_flush(napi, false);
+		__napi_complete(napi);
 
-	netdev_dbg(priv->dev,
-		   "NAPI Complete, did %d packets with budget %d\n",
-		   txcomplete+rxcomplete, budget);
+		netdev_dbg(priv->dev,
+			   "NAPI Complete, did %d packets with budget %d\n",
+			   rxcomplete, budget);
 
-	spin_lock_irqsave(&priv->rxdma_irq_lock, flags);
-	priv->dmaops->enable_rxirq(priv);
-	priv->dmaops->enable_txirq(priv);
-	spin_unlock_irqrestore(&priv->rxdma_irq_lock, flags);
-	return rxcomplete + txcomplete;
+		spin_lock_irqsave(&priv->rxdma_irq_lock, flags);
+		priv->dmaops->enable_rxirq(priv);
+		priv->dmaops->enable_txirq(priv);
+		spin_unlock_irqrestore(&priv->rxdma_irq_lock, flags);
+	}
+	return rxcomplete;
 }
 
 /* DMA TX & RX FIFO interrupt routing
@@ -521,7 +521,6 @@ static irqreturn_t altera_isr(int irq, void *dev_id)
 {
 	struct net_device *dev = dev_id;
 	struct altera_tse_private *priv;
-	unsigned long int flags;
 
 	if (unlikely(!dev)) {
 		pr_err("%s: invalid dev pointer\n", __func__);
@@ -529,20 +528,20 @@ static irqreturn_t altera_isr(int irq, void *dev_id)
 	}
 	priv = netdev_priv(dev);
 
-	/* turn off desc irqs and enable napi rx */
-	spin_lock_irqsave(&priv->rxdma_irq_lock, flags);
+	spin_lock(&priv->rxdma_irq_lock);
+	/* reset IRQs */
+	priv->dmaops->clear_rxirq(priv);
+	priv->dmaops->clear_txirq(priv);
+	spin_unlock(&priv->rxdma_irq_lock);
 
 	if (likely(napi_schedule_prep(&priv->napi))) {
+		spin_lock(&priv->rxdma_irq_lock);
 		priv->dmaops->disable_rxirq(priv);
 		priv->dmaops->disable_txirq(priv);
+		spin_unlock(&priv->rxdma_irq_lock);
 		__napi_schedule(&priv->napi);
 	}
 
-	/* reset IRQs */
-	priv->dmaops->clear_rxirq(priv);
-	priv->dmaops->clear_txirq(priv);
-
-	spin_unlock_irqrestore(&priv->rxdma_irq_lock, flags);
 
 	return IRQ_HANDLED;
 }
-- 
cgit v1.2.3


From f2831e2007810b690f93a26128058a193eadf393 Mon Sep 17 00:00:00 2001
From: Bob Copeland <me@bobcopeland.com>
Date: Thu, 5 Feb 2015 08:45:43 -0500
Subject: mac80211_hwsim: fix error handling in tx_frame_nl

Correct two problems with the error handling when using the netlink
forwarding API: first, the netlink skb is never freed if nla_put()
fails; and second, genlmsg_unicast() can fail if the netlink socket
is full.  In the latter case, the corresponding data skb is not counted
as a drop and userspace programs like wmediumd will see TCP stalls
due to lost packets.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/mac80211_hwsim.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 4a4c6586a8d2..8908be6dbc48 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -946,7 +946,8 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_unicast(&init_net, skb, dst_portid);
+	if (genlmsg_unicast(&init_net, skb, dst_portid))
+		goto err_free_txskb;
 
 	/* Enqueue the packet */
 	skb_queue_tail(&data->pending, my_skb);
@@ -955,6 +956,8 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
 	return;
 
 nla_put_failure:
+	nlmsg_free(skb);
+err_free_txskb:
 	printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
 	ieee80211_free_txskb(hw, my_skb);
 	data->tx_failed++;
-- 
cgit v1.2.3


From 7fbb9d8415d4a51cf542e87cf3a717a9f7e6aedc Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@citrix.com>
Date: Tue, 24 Feb 2015 11:17:59 +0000
Subject: xen-netback: release pending index before pushing Tx responses

If the pending indexes are released /after/ pushing the Tx response
then a stale pending index may be used if a new Tx request is
immediately pushed by the frontend.  The may cause various WARNINGs or
BUGs if the stale pending index is actually still in use.

Fix this by releasing the pending index before pushing the Tx
response.

The full barrier for the pending ring update is not required since the
the Tx response push already has a suitable write barrier.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/netback.c | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index f7a31d2cb3f1..c4d68d768408 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -655,9 +655,15 @@ static void xenvif_tx_err(struct xenvif_queue *queue,
 	unsigned long flags;
 
 	do {
+		int notify;
+
 		spin_lock_irqsave(&queue->response_lock, flags);
 		make_tx_response(queue, txp, XEN_NETIF_RSP_ERROR);
+		RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
 		spin_unlock_irqrestore(&queue->response_lock, flags);
+		if (notify)
+			notify_remote_via_irq(queue->tx_irq);
+
 		if (cons == end)
 			break;
 		txp = RING_GET_REQUEST(&queue->tx, cons++);
@@ -1649,17 +1655,28 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx,
 {
 	struct pending_tx_info *pending_tx_info;
 	pending_ring_idx_t index;
+	int notify;
 	unsigned long flags;
 
 	pending_tx_info = &queue->pending_tx_info[pending_idx];
+
 	spin_lock_irqsave(&queue->response_lock, flags);
+
 	make_tx_response(queue, &pending_tx_info->req, status);
-	index = pending_index(queue->pending_prod);
+
+	/* Release the pending index before pusing the Tx response so
+	 * its available before a new Tx request is pushed by the
+	 * frontend.
+	 */
+	index = pending_index(queue->pending_prod++);
 	queue->pending_ring[index] = pending_idx;
-	/* TX shouldn't use the index before we give it back here */
-	mb();
-	queue->pending_prod++;
+
+	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
+
 	spin_unlock_irqrestore(&queue->response_lock, flags);
+
+	if (notify)
+		notify_remote_via_irq(queue->tx_irq);
 }
 
 
@@ -1669,7 +1686,6 @@ static void make_tx_response(struct xenvif_queue *queue,
 {
 	RING_IDX i = queue->tx.rsp_prod_pvt;
 	struct xen_netif_tx_response *resp;
-	int notify;
 
 	resp = RING_GET_RESPONSE(&queue->tx, i);
 	resp->id     = txp->id;
@@ -1679,9 +1695,6 @@ static void make_tx_response(struct xenvif_queue *queue,
 		RING_GET_RESPONSE(&queue->tx, ++i)->status = XEN_NETIF_RSP_NULL;
 
 	queue->tx.rsp_prod_pvt = ++i;
-	RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify);
-	if (notify)
-		notify_remote_via_irq(queue->tx_irq);
 }
 
 static struct xen_netif_rx_response *make_rx_response(struct xenvif_queue *queue,
-- 
cgit v1.2.3


From 5c2d2b148b35a995f0c0e76a3a37902ec98f164c Mon Sep 17 00:00:00 2001
From: Yannick Guerrini <yguerrini@tomshardware.fr>
Date: Tue, 24 Feb 2015 13:03:51 +0100
Subject: r8169: Fix trivial typo in rtl_check_firmware

Change 'firwmare' to 'firmware'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/r8169.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index b1560927abd4..c70ab40d8698 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -2561,7 +2561,7 @@ static int rtl_check_firmware(struct rtl8169_private *tp, struct rtl_fw *rtl_fw)
 	int rc = -EINVAL;
 
 	if (!rtl_fw_format_ok(tp, rtl_fw)) {
-		netif_err(tp, ifup, dev, "invalid firwmare\n");
+		netif_err(tp, ifup, dev, "invalid firmware\n");
 		goto out;
 	}
 
-- 
cgit v1.2.3


From 74ad752442d9488cf02ee2a9243d6c6b5c943efb Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Tue, 24 Feb 2015 10:47:49 -0600
Subject: amd-xgbe-phy: PHY KX/KR mode differences

The PHY requires different settings for the Decision Feedback Analyzer
(DFE) when running in KX mode vs. KR mode. Update the code to change
these settings when changing modes in order to provide a more stable
link.

Additionally, adjust the 10GbE PQ skew default setting to a more sane
value.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/amd-xgbe-phy.c | 82 ++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 80 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/phy/amd-xgbe-phy.c b/drivers/net/phy/amd-xgbe-phy.c
index 9e3af54c9010..32efbd48f326 100644
--- a/drivers/net/phy/amd-xgbe-phy.c
+++ b/drivers/net/phy/amd-xgbe-phy.c
@@ -92,6 +92,8 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define XGBE_PHY_CDR_RATE_PROPERTY	"amd,serdes-cdr-rate"
 #define XGBE_PHY_PQ_SKEW_PROPERTY	"amd,serdes-pq-skew"
 #define XGBE_PHY_TX_AMP_PROPERTY	"amd,serdes-tx-amp"
+#define XGBE_PHY_DFE_CFG_PROPERTY	"amd,serdes-dfe-tap-config"
+#define XGBE_PHY_DFE_ENA_PROPERTY	"amd,serdes-dfe-tap-enable"
 
 #define XGBE_PHY_SPEEDS			3
 #define XGBE_PHY_SPEED_1000		0
@@ -177,10 +179,12 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define SPEED_10000_BLWC		0
 #define SPEED_10000_CDR			0x7
 #define SPEED_10000_PLL			0x1
-#define SPEED_10000_PQ			0x1e
+#define SPEED_10000_PQ			0x12
 #define SPEED_10000_RATE		0x0
 #define SPEED_10000_TXAMP		0xa
 #define SPEED_10000_WORD		0x7
+#define SPEED_10000_DFE_TAP_CONFIG	0x1
+#define SPEED_10000_DFE_TAP_ENABLE	0x7f
 
 #define SPEED_2500_BLWC			1
 #define SPEED_2500_CDR			0x2
@@ -189,6 +193,8 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define SPEED_2500_RATE			0x1
 #define SPEED_2500_TXAMP		0xf
 #define SPEED_2500_WORD			0x1
+#define SPEED_2500_DFE_TAP_CONFIG	0x3
+#define SPEED_2500_DFE_TAP_ENABLE	0x0
 
 #define SPEED_1000_BLWC			1
 #define SPEED_1000_CDR			0x2
@@ -197,16 +203,25 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
 #define SPEED_1000_RATE			0x3
 #define SPEED_1000_TXAMP		0xf
 #define SPEED_1000_WORD			0x1
+#define SPEED_1000_DFE_TAP_CONFIG	0x3
+#define SPEED_1000_DFE_TAP_ENABLE	0x0
 
 /* SerDes RxTx register offsets */
+#define RXTX_REG6			0x0018
 #define RXTX_REG20			0x0050
+#define RXTX_REG22			0x0058
 #define RXTX_REG114			0x01c8
+#define RXTX_REG129			0x0204
 
 /* SerDes RxTx register entry bit positions and sizes */
+#define RXTX_REG6_RESETB_RXD_INDEX	8
+#define RXTX_REG6_RESETB_RXD_WIDTH	1
 #define RXTX_REG20_BLWC_ENA_INDEX	2
 #define RXTX_REG20_BLWC_ENA_WIDTH	1
 #define RXTX_REG114_PQ_REG_INDEX	9
 #define RXTX_REG114_PQ_REG_WIDTH	7
+#define RXTX_REG129_RXDFE_CONFIG_INDEX	14
+#define RXTX_REG129_RXDFE_CONFIG_WIDTH	2
 
 /* Bit setting and getting macros
  *  The get macro will extract the current bit field value from within
@@ -333,6 +348,18 @@ static const u32 amd_xgbe_phy_serdes_tx_amp[] = {
 	SPEED_10000_TXAMP,
 };
 
+static const u32 amd_xgbe_phy_serdes_dfe_tap_cfg[] = {
+	SPEED_1000_DFE_TAP_CONFIG,
+	SPEED_2500_DFE_TAP_CONFIG,
+	SPEED_10000_DFE_TAP_CONFIG,
+};
+
+static const u32 amd_xgbe_phy_serdes_dfe_tap_ena[] = {
+	SPEED_1000_DFE_TAP_ENABLE,
+	SPEED_2500_DFE_TAP_ENABLE,
+	SPEED_10000_DFE_TAP_ENABLE,
+};
+
 enum amd_xgbe_phy_an {
 	AMD_XGBE_AN_READY = 0,
 	AMD_XGBE_AN_PAGE_RECEIVED,
@@ -393,6 +420,8 @@ struct amd_xgbe_phy_priv {
 	u32 serdes_cdr_rate[XGBE_PHY_SPEEDS];
 	u32 serdes_pq_skew[XGBE_PHY_SPEEDS];
 	u32 serdes_tx_amp[XGBE_PHY_SPEEDS];
+	u32 serdes_dfe_tap_cfg[XGBE_PHY_SPEEDS];
+	u32 serdes_dfe_tap_ena[XGBE_PHY_SPEEDS];
 
 	/* Auto-negotiation state machine support */
 	struct mutex an_mutex;
@@ -481,11 +510,16 @@ static void amd_xgbe_phy_serdes_complete_ratechange(struct phy_device *phydev)
 		status = XSIR0_IOREAD(priv, SIR0_STATUS);
 		if (XSIR_GET_BITS(status, SIR0_STATUS, RX_READY) &&
 		    XSIR_GET_BITS(status, SIR0_STATUS, TX_READY))
-			return;
+			goto rx_reset;
 	}
 
 	netdev_dbg(phydev->attached_dev, "SerDes rx/tx not ready (%#hx)\n",
 		   status);
+
+rx_reset:
+	/* Perform Rx reset for the DFE changes */
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RESETB_RXD, 0);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RESETB_RXD, 1);
 }
 
 static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
@@ -534,6 +568,10 @@ static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
 			   priv->serdes_blwc[XGBE_PHY_SPEED_10000]);
 	XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG,
 			   priv->serdes_pq_skew[XGBE_PHY_SPEED_10000]);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG129, RXDFE_CONFIG,
+			   priv->serdes_dfe_tap_cfg[XGBE_PHY_SPEED_10000]);
+	XRXTX_IOWRITE(priv, RXTX_REG22,
+		      priv->serdes_dfe_tap_ena[XGBE_PHY_SPEED_10000]);
 
 	amd_xgbe_phy_serdes_complete_ratechange(phydev);
 
@@ -586,6 +624,10 @@ static int amd_xgbe_phy_gmii_2500_mode(struct phy_device *phydev)
 			   priv->serdes_blwc[XGBE_PHY_SPEED_2500]);
 	XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG,
 			   priv->serdes_pq_skew[XGBE_PHY_SPEED_2500]);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG129, RXDFE_CONFIG,
+			   priv->serdes_dfe_tap_cfg[XGBE_PHY_SPEED_2500]);
+	XRXTX_IOWRITE(priv, RXTX_REG22,
+		      priv->serdes_dfe_tap_ena[XGBE_PHY_SPEED_2500]);
 
 	amd_xgbe_phy_serdes_complete_ratechange(phydev);
 
@@ -638,6 +680,10 @@ static int amd_xgbe_phy_gmii_mode(struct phy_device *phydev)
 			   priv->serdes_blwc[XGBE_PHY_SPEED_1000]);
 	XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG,
 			   priv->serdes_pq_skew[XGBE_PHY_SPEED_1000]);
+	XRXTX_IOWRITE_BITS(priv, RXTX_REG129, RXDFE_CONFIG,
+			   priv->serdes_dfe_tap_cfg[XGBE_PHY_SPEED_1000]);
+	XRXTX_IOWRITE(priv, RXTX_REG22,
+		      priv->serdes_dfe_tap_ena[XGBE_PHY_SPEED_1000]);
 
 	amd_xgbe_phy_serdes_complete_ratechange(phydev);
 
@@ -1668,6 +1714,38 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
 		       sizeof(priv->serdes_tx_amp));
 	}
 
+	if (device_property_present(phy_dev, XGBE_PHY_DFE_CFG_PROPERTY)) {
+		ret = device_property_read_u32_array(phy_dev,
+						     XGBE_PHY_DFE_CFG_PROPERTY,
+						     priv->serdes_dfe_tap_cfg,
+						     XGBE_PHY_SPEEDS);
+		if (ret) {
+			dev_err(dev, "invalid %s property\n",
+				XGBE_PHY_DFE_CFG_PROPERTY);
+			goto err_sir1;
+		}
+	} else {
+		memcpy(priv->serdes_dfe_tap_cfg,
+		       amd_xgbe_phy_serdes_dfe_tap_cfg,
+		       sizeof(priv->serdes_dfe_tap_cfg));
+	}
+
+	if (device_property_present(phy_dev, XGBE_PHY_DFE_ENA_PROPERTY)) {
+		ret = device_property_read_u32_array(phy_dev,
+						     XGBE_PHY_DFE_ENA_PROPERTY,
+						     priv->serdes_dfe_tap_ena,
+						     XGBE_PHY_SPEEDS);
+		if (ret) {
+			dev_err(dev, "invalid %s property\n",
+				XGBE_PHY_DFE_ENA_PROPERTY);
+			goto err_sir1;
+		}
+	} else {
+		memcpy(priv->serdes_dfe_tap_ena,
+		       amd_xgbe_phy_serdes_dfe_tap_ena,
+		       sizeof(priv->serdes_dfe_tap_ena));
+	}
+
 	phydev->priv = priv;
 
 	if (!priv->adev || acpi_disabled)
-- 
cgit v1.2.3


From dda094a312dbb2cd96e3e46fce7784aca999bcf1 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Sat, 21 Feb 2015 07:32:47 +0000
Subject: i40e: Fix memory leak at failure path in i40e_dbg_command_write()

The patch fixes a leak of 'cmd_buf' when copy_from_user() failed
in i40e_dbg_command_write().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 61236f983971..c17ee77100d3 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -989,8 +989,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 	if (!cmd_buf)
 		return count;
 	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
-	if (bytes_not_copied < 0)
+	if (bytes_not_copied < 0) {
+		kfree(cmd_buf);
 		return bytes_not_copied;
+	}
 	if (bytes_not_copied > 0)
 		count -= bytes_not_copied;
 	cmd_buf[count] = '\0';
-- 
cgit v1.2.3


From de78fc5ac1702059ca13203010fd0a3dd20d426f Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 21 Feb 2015 06:41:47 +0000
Subject: i40e: fix shift precedence issue

Add parens to make sure the shift and bitwise precedences don't work backwards
for us.

Change-ID: I60c10ef4fad6bc654522b9d8a53da2e270a0f268
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 5 +++--
 drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 11a9ffebf8d8..2a705a116227 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -868,8 +868,9 @@ i40e_status i40e_pf_reset(struct i40e_hw *hw)
 	 * The grst delay value is in 100ms units, and we'll wait a
 	 * couple counts longer to be sure we don't just miss the end.
 	 */
-	grst_del = rd32(hw, I40E_GLGEN_RSTCTL) & I40E_GLGEN_RSTCTL_GRSTDEL_MASK
-			>> I40E_GLGEN_RSTCTL_GRSTDEL_SHIFT;
+	grst_del = (rd32(hw, I40E_GLGEN_RSTCTL) &
+		    I40E_GLGEN_RSTCTL_GRSTDEL_MASK) >>
+		    I40E_GLGEN_RSTCTL_GRSTDEL_SHIFT;
 	for (cnt = 0; cnt < grst_del + 2; cnt++) {
 		reg = rd32(hw, I40E_GLGEN_RSTAT);
 		if (!(reg & I40E_GLGEN_RSTAT_DEVSTATE_MASK))
diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
index 183dcb63ce98..a11c70ca5a28 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c
@@ -40,7 +40,7 @@ static void i40e_get_pfc_delay(struct i40e_hw *hw, u16 *delay)
 	u32 val;
 
 	val = rd32(hw, I40E_PRTDCB_GENC);
-	*delay = (u16)(val & I40E_PRTDCB_GENC_PFCLDA_MASK >>
+	*delay = (u16)((val & I40E_PRTDCB_GENC_PFCLDA_MASK) >>
 		       I40E_PRTDCB_GENC_PFCLDA_SHIFT);
 }
 
-- 
cgit v1.2.3


From b67a03357cab0ccb91d641fead6f167c697a24cb Mon Sep 17 00:00:00 2001
From: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Date: Sat, 21 Feb 2015 06:42:15 +0000
Subject: i40e: Don't check for Tx hang when PF down

This patch adds check to bail out if device is already down when checking
for Tx hang subtask.

Change-ID: I3853fb7a6d11cb9a4c349b687cb25c15b19977a0
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index cbe281be1c9f..6bb637653d12 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5587,7 +5587,8 @@ static void i40e_check_hang_subtask(struct i40e_pf *pf)
 	int i, v;
 
 	/* If we're down or resetting, just bail */
-	if (test_bit(__I40E_CONFIG_BUSY, &pf->state))
+	if (test_bit(__I40E_DOWN, &pf->state) ||
+	    test_bit(__I40E_CONFIG_BUSY, &pf->state))
 		return;
 
 	/* for each VSI/netdev
-- 
cgit v1.2.3


From 71da61976ec18fb57b3ba9a1dd846b747cc7c884 Mon Sep 17 00:00:00 2001
From: Anjali Singhai <anjali.singhai@intel.com>
Date: Sat, 21 Feb 2015 06:42:35 +0000
Subject: i40e: Fix TSO with more than 8 frags per segment issue

The hardware has some limitations the driver needs to adhere to,
that we found in extended testing.
  1) no more than 8 descriptors per packet on the wire
  2) no header can span more than 3 descriptors

If one of these events occurs, the hardware will generate an internal
error and freeze the Tx queue.

This patch linearizes the skb to avoid these situations.

Change-ID: I37dab7d3966e14895a9663ec4d0aaa8eb0d9e115
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 65 +++++++++++++++++++++++++++
 drivers/net/ethernet/intel/i40e/i40e_txrx.h   |  1 +
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 65 +++++++++++++++++++++++++++
 drivers/net/ethernet/intel/i40evf/i40e_txrx.h |  1 +
 4 files changed, 132 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 2206d2d36f0f..0aad61170f75 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2139,6 +2139,67 @@ static int i40e_maybe_stop_tx(struct i40e_ring *tx_ring, int size)
 	return __i40e_maybe_stop_tx(tx_ring, size);
 }
 
+/**
+ * i40e_chk_linearize - Check if there are more than 8 fragments per packet
+ * @skb:      send buffer
+ * @tx_flags: collected send information
+ * @hdr_len:  size of the packet header
+ *
+ * Note: Our HW can't scatter-gather more than 8 fragments to build
+ * a packet on the wire and so we need to figure out the cases where we
+ * need to linearize the skb.
+ **/
+static bool i40e_chk_linearize(struct sk_buff *skb, u32 tx_flags,
+			       const u8 hdr_len)
+{
+	struct skb_frag_struct *frag;
+	bool linearize = false;
+	unsigned int size = 0;
+	u16 num_frags;
+	u16 gso_segs;
+
+	num_frags = skb_shinfo(skb)->nr_frags;
+	gso_segs = skb_shinfo(skb)->gso_segs;
+
+	if (tx_flags & (I40E_TX_FLAGS_TSO | I40E_TX_FLAGS_FSO)) {
+		u16 j = 1;
+
+		if (num_frags < (I40E_MAX_BUFFER_TXD))
+			goto linearize_chk_done;
+		/* try the simple math, if we have too many frags per segment */
+		if (DIV_ROUND_UP((num_frags + gso_segs), gso_segs) >
+		    I40E_MAX_BUFFER_TXD) {
+			linearize = true;
+			goto linearize_chk_done;
+		}
+		frag = &skb_shinfo(skb)->frags[0];
+		size = hdr_len;
+		/* we might still have more fragments per segment */
+		do {
+			size += skb_frag_size(frag);
+			frag++; j++;
+			if (j == I40E_MAX_BUFFER_TXD) {
+				if (size < skb_shinfo(skb)->gso_size) {
+					linearize = true;
+					break;
+				}
+				j = 1;
+				size -= skb_shinfo(skb)->gso_size;
+				if (size)
+					j++;
+				size += hdr_len;
+			}
+			num_frags--;
+		} while (num_frags);
+	} else {
+		if (num_frags >= I40E_MAX_BUFFER_TXD)
+			linearize = true;
+	}
+
+linearize_chk_done:
+	return linearize;
+}
+
 /**
  * i40e_tx_map - Build the Tx descriptor
  * @tx_ring:  ring to send buffer on
@@ -2396,6 +2457,10 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 	if (tsyn)
 		tx_flags |= I40E_TX_FLAGS_TSYN;
 
+	if (i40e_chk_linearize(skb, tx_flags, hdr_len))
+		if (skb_linearize(skb))
+			goto out_drop;
+
 	skb_tx_timestamp(skb);
 
 	/* always enable CRC insertion offload */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 18b00231d2f1..dff0baeb1ecc 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -112,6 +112,7 @@ enum i40e_dyn_idx_t {
 
 #define i40e_rx_desc i40e_32byte_rx_desc
 
+#define I40E_MAX_BUFFER_TXD	8
 #define I40E_MIN_TX_LEN		17
 #define I40E_MAX_DATA_PER_TXD	8192
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 29004382f462..1320a433b8ed 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1380,6 +1380,67 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
 	context_desc->type_cmd_tso_mss = cpu_to_le64(cd_type_cmd_tso_mss);
 }
 
+ /**
+ * i40e_chk_linearize - Check if there are more than 8 fragments per packet
+ * @skb:      send buffer
+ * @tx_flags: collected send information
+ * @hdr_len:  size of the packet header
+ *
+ * Note: Our HW can't scatter-gather more than 8 fragments to build
+ * a packet on the wire and so we need to figure out the cases where we
+ * need to linearize the skb.
+ **/
+static bool i40e_chk_linearize(struct sk_buff *skb, u32 tx_flags,
+			       const u8 hdr_len)
+{
+	struct skb_frag_struct *frag;
+	bool linearize = false;
+	unsigned int size = 0;
+	u16 num_frags;
+	u16 gso_segs;
+
+	num_frags = skb_shinfo(skb)->nr_frags;
+	gso_segs = skb_shinfo(skb)->gso_segs;
+
+	if (tx_flags & (I40E_TX_FLAGS_TSO | I40E_TX_FLAGS_FSO)) {
+		u16 j = 1;
+
+		if (num_frags < (I40E_MAX_BUFFER_TXD))
+			goto linearize_chk_done;
+		/* try the simple math, if we have too many frags per segment */
+		if (DIV_ROUND_UP((num_frags + gso_segs), gso_segs) >
+		    I40E_MAX_BUFFER_TXD) {
+			linearize = true;
+			goto linearize_chk_done;
+		}
+		frag = &skb_shinfo(skb)->frags[0];
+		size = hdr_len;
+		/* we might still have more fragments per segment */
+		do {
+			size += skb_frag_size(frag);
+			frag++; j++;
+			if (j == I40E_MAX_BUFFER_TXD) {
+				if (size < skb_shinfo(skb)->gso_size) {
+					linearize = true;
+					break;
+				}
+				j = 1;
+				size -= skb_shinfo(skb)->gso_size;
+				if (size)
+					j++;
+				size += hdr_len;
+			}
+			num_frags--;
+		} while (num_frags);
+	} else {
+		if (num_frags >= I40E_MAX_BUFFER_TXD)
+			linearize = true;
+	}
+
+linearize_chk_done:
+	return linearize;
+}
+
 /**
  * i40e_tx_map - Build the Tx descriptor
  * @tx_ring:  ring to send buffer on
@@ -1654,6 +1715,10 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 	else if (tso)
 		tx_flags |= I40E_TX_FLAGS_TSO;
 
+	if (i40e_chk_linearize(skb, tx_flags, hdr_len))
+		if (skb_linearize(skb))
+			goto out_drop;
+
 	skb_tx_timestamp(skb);
 
 	/* always enable CRC insertion offload */
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
index 4e15903b2b6d..c950a038237c 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.h
@@ -112,6 +112,7 @@ enum i40e_dyn_idx_t {
 
 #define i40e_rx_desc i40e_32byte_rx_desc
 
+#define I40E_MAX_BUFFER_TXD	8
 #define I40E_MIN_TX_LEN		17
 #define I40E_MAX_DATA_PER_TXD	8192
 
-- 
cgit v1.2.3


From a68de58d2791dd9f2b159703b70377011b35a568 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Tue, 24 Feb 2015 05:26:03 +0000
Subject: i40e: fix race in hang check

The driver was having some issues with false Tx hang detection. This
makes the driver a little more direct with the checks for progress
forward by directly checking the head write back address and tail register
when determining progress.  This avoids Tx hangs where the software
gets behind, because we are directly checking hardware state when
determining hang state.

Change-ID: I774f0e861c9e8ab5ccb213634100fe15440ae24a
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c   | 54 +++++++++++++++------------
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 54 +++++++++++++++------------
 2 files changed, 60 insertions(+), 48 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 0aad61170f75..bbf1b1247ac4 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -585,6 +585,20 @@ void i40e_free_tx_resources(struct i40e_ring *tx_ring)
 	}
 }
 
+/**
+ * i40e_get_head - Retrieve head from head writeback
+ * @tx_ring:  tx ring to fetch head of
+ *
+ * Returns value of Tx ring head based on value stored
+ * in head write-back location
+ **/
+static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
+{
+	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
+
+	return le32_to_cpu(*(volatile __le32 *)head);
+}
+
 /**
  * i40e_get_tx_pending - how many tx descriptors not processed
  * @tx_ring: the ring of descriptors
@@ -594,10 +608,16 @@ void i40e_free_tx_resources(struct i40e_ring *tx_ring)
  **/
 static u32 i40e_get_tx_pending(struct i40e_ring *ring)
 {
-	u32 ntu = ((ring->next_to_clean <= ring->next_to_use)
-			? ring->next_to_use
-			: ring->next_to_use + ring->count);
-	return ntu - ring->next_to_clean;
+	u32 head, tail;
+
+	head = i40e_get_head(ring);
+	tail = readl(ring->tail);
+
+	if (head != tail)
+		return (head < tail) ?
+			tail - head : (tail + ring->count - head);
+
+	return 0;
 }
 
 /**
@@ -606,6 +626,8 @@ static u32 i40e_get_tx_pending(struct i40e_ring *ring)
  **/
 static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 {
+	u32 tx_done = tx_ring->stats.packets;
+	u32 tx_done_old = tx_ring->tx_stats.tx_done_old;
 	u32 tx_pending = i40e_get_tx_pending(tx_ring);
 	struct i40e_pf *pf = tx_ring->vsi->back;
 	bool ret = false;
@@ -623,41 +645,25 @@ static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 	 * run the check_tx_hang logic with a transmit completion
 	 * pending but without time to complete it yet.
 	 */
-	if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
-	    (tx_pending >= I40E_MIN_DESC_PENDING)) {
+	if ((tx_done_old == tx_done) && tx_pending) {
 		/* make sure it is true for two checks in a row */
 		ret = test_and_set_bit(__I40E_HANG_CHECK_ARMED,
 				       &tx_ring->state);
-	} else if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
-		   (tx_pending < I40E_MIN_DESC_PENDING) &&
-		   (tx_pending > 0)) {
+	} else if (tx_done_old == tx_done &&
+		   (tx_pending < I40E_MIN_DESC_PENDING) && (tx_pending > 0)) {
 		if (I40E_DEBUG_FLOW & pf->hw.debug_mask)
 			dev_info(tx_ring->dev, "HW needs some more descs to do a cacheline flush. tx_pending %d, queue %d",
 				 tx_pending, tx_ring->queue_index);
 		pf->tx_sluggish_count++;
 	} else {
 		/* update completed stats and disarm the hang check */
-		tx_ring->tx_stats.tx_done_old = tx_ring->stats.packets;
+		tx_ring->tx_stats.tx_done_old = tx_done;
 		clear_bit(__I40E_HANG_CHECK_ARMED, &tx_ring->state);
 	}
 
 	return ret;
 }
 
-/**
- * i40e_get_head - Retrieve head from head writeback
- * @tx_ring:  tx ring to fetch head of
- *
- * Returns value of Tx ring head based on value stored
- * in head write-back location
- **/
-static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
-{
-	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
-
-	return le32_to_cpu(*(volatile __le32 *)head);
-}
-
 #define WB_STRIDE 0x3
 
 /**
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 1320a433b8ed..be05829ba619 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -125,6 +125,20 @@ void i40evf_free_tx_resources(struct i40e_ring *tx_ring)
 	}
 }
 
+/**
+ * i40e_get_head - Retrieve head from head writeback
+ * @tx_ring:  tx ring to fetch head of
+ *
+ * Returns value of Tx ring head based on value stored
+ * in head write-back location
+ **/
+static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
+{
+	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
+
+	return le32_to_cpu(*(volatile __le32 *)head);
+}
+
 /**
  * i40e_get_tx_pending - how many tx descriptors not processed
  * @tx_ring: the ring of descriptors
@@ -134,10 +148,16 @@ void i40evf_free_tx_resources(struct i40e_ring *tx_ring)
  **/
 static u32 i40e_get_tx_pending(struct i40e_ring *ring)
 {
-	u32 ntu = ((ring->next_to_clean <= ring->next_to_use)
-			? ring->next_to_use
-			: ring->next_to_use + ring->count);
-	return ntu - ring->next_to_clean;
+	u32 head, tail;
+
+	head = i40e_get_head(ring);
+	tail = readl(ring->tail);
+
+	if (head != tail)
+		return (head < tail) ?
+			tail - head : (tail + ring->count - head);
+
+	return 0;
 }
 
 /**
@@ -146,6 +166,8 @@ static u32 i40e_get_tx_pending(struct i40e_ring *ring)
  **/
 static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 {
+	u32 tx_done = tx_ring->stats.packets;
+	u32 tx_done_old = tx_ring->tx_stats.tx_done_old;
 	u32 tx_pending = i40e_get_tx_pending(tx_ring);
 	bool ret = false;
 
@@ -162,36 +184,20 @@ static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 	 * run the check_tx_hang logic with a transmit completion
 	 * pending but without time to complete it yet.
 	 */
-	if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
-	    (tx_pending >= I40E_MIN_DESC_PENDING)) {
+	if ((tx_done_old == tx_done) && tx_pending) {
 		/* make sure it is true for two checks in a row */
 		ret = test_and_set_bit(__I40E_HANG_CHECK_ARMED,
 				       &tx_ring->state);
-	} else if (!(tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) ||
-		   !(tx_pending < I40E_MIN_DESC_PENDING) ||
-		   !(tx_pending > 0)) {
+	} else if (tx_done_old == tx_done &&
+		   (tx_pending < I40E_MIN_DESC_PENDING) && (tx_pending > 0)) {
 		/* update completed stats and disarm the hang check */
-		tx_ring->tx_stats.tx_done_old = tx_ring->stats.packets;
+		tx_ring->tx_stats.tx_done_old = tx_done;
 		clear_bit(__I40E_HANG_CHECK_ARMED, &tx_ring->state);
 	}
 
 	return ret;
 }
 
-/**
- * i40e_get_head - Retrieve head from head writeback
- * @tx_ring:  tx ring to fetch head of
- *
- * Returns value of Tx ring head based on value stored
- * in head write-back location
- **/
-static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
-{
-	void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
-
-	return le32_to_cpu(*(volatile __le32 *)head);
-}
-
 #define WB_STRIDE 0x3
 
 /**
-- 
cgit v1.2.3


From 7f9ff47683cb7441e6d0496365bcf64738f6d2d4 Mon Sep 17 00:00:00 2001
From: Anjali Singhai <anjali.singhai@intel.com>
Date: Sat, 21 Feb 2015 06:43:19 +0000
Subject: i40e: Fix the case where per TC queue count was higher than queues
 enabled

When the driver or hardware gets less interrupt vectors than the actual
number of CPU cores, limit the queue count for the priority queue
traffic class (TC) queues.

This will fix a warning with multiple function mode where systems
regularly have more cores than vectors.

Also add extra comment for readability.

Change-ID: I4f02226263aa3995e1f5ee5503eac0cd6ee12fbd
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young  <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6bb637653d12..a926e3bf1d6d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1512,7 +1512,12 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 	vsi->tc_config.numtc = numtc;
 	vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1;
 	/* Number of queues per enabled TC */
-	num_tc_qps = vsi->alloc_queue_pairs/numtc;
+	/* In MFP case we can have a much lower count of MSIx
+	 * vectors available and so we need to lower the used
+	 * q count.
+	 */
+	qcount = min_t(int, vsi->alloc_queue_pairs, pf->num_lan_msix);
+	num_tc_qps = qcount / numtc;
 	num_tc_qps = min_t(int, num_tc_qps, I40E_MAX_QUEUES_PER_TC);
 
 	/* Setup queue offset/count for all TCs for given VSI */
-- 
cgit v1.2.3


From cd238a3ecf2bf7f3d1a155a32b4bddd87dbd3d23 Mon Sep 17 00:00:00 2001
From: "Parikh, Neerav" <neerav.parikh@intel.com>
Date: Sat, 21 Feb 2015 06:43:37 +0000
Subject: i40e: Fix the Tx ring qset handle when DCB reconfigures

When DCB is reconfigured to single TC the driver did not reset the
Tx ring Qset handle to the correct mapping; which caused Tx queue
disable timeouts.

Change-ID: I4da5915ec92a83c281b478d653fae6ef1b72edfe
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index a926e3bf1d6d..bd4494d727a6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2689,8 +2689,15 @@ static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi)
 	u16 qoffset, qcount;
 	int i, n;
 
-	if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED))
-		return;
+	if (!(vsi->back->flags & I40E_FLAG_DCB_ENABLED)) {
+		/* Reset the TC information */
+		for (i = 0; i < vsi->num_queue_pairs; i++) {
+			rx_ring = vsi->rx_rings[i];
+			tx_ring = vsi->tx_rings[i];
+			rx_ring->dcb_tc = 0;
+			tx_ring->dcb_tc = 0;
+		}
+	}
 
 	for (n = 0; n < I40E_MAX_TRAFFIC_CLASS; n++) {
 		if (!(vsi->tc_config.enabled_tc & (1 << n)))
-- 
cgit v1.2.3


From 11e4770842d4917b1cad52d901b758a6d1997735 Mon Sep 17 00:00:00 2001
From: "Parikh, Neerav" <neerav.parikh@intel.com>
Date: Sat, 21 Feb 2015 06:43:55 +0000
Subject: i40e: Issue a PF reset if Tx queue disable timeout

As part of DCB reconfiguration flow if the Tx queue disable times out
then issue a PF reset to do some level of recovery.

Change-ID: I7550021c55bff355351c0365e61e1f05fcaff46d
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index bd4494d727a6..9751465f29c7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5266,8 +5266,14 @@ static int i40e_handle_lldp_event(struct i40e_pf *pf,
 
 	/* Wait for the PF's Tx queues to be disabled */
 	ret = i40e_pf_wait_txq_disabled(pf);
-	if (!ret)
+	if (ret) {
+		/* Schedule PF reset to recover */
+		set_bit(__I40E_PF_RESET_REQUESTED, &pf->state);
+		i40e_service_event_schedule(pf);
+	} else {
 		i40e_pf_unquiesce_all_vsi(pf);
+	}
+
 exit:
 	return ret;
 }
-- 
cgit v1.2.3


From 85e76d0312a373a1268b88a7a442c6004e0c6063 Mon Sep 17 00:00:00 2001
From: Anjali Singhai <anjali.singhai@intel.com>
Date: Sat, 21 Feb 2015 06:44:16 +0000
Subject: i40evf: TCP/IPv6 over Vxlan Tx checksum offload fix

We were checking the outer Protocol flags and deciding the flow for
inner header. This patch fixes that.
This fixes the Tx checksum offload for TCP/IPv6 over vxlan.

Change-ID: I837aaea921d34f71b24c2bc32aaadea5001ddf78
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index be05829ba619..708891571dae 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1212,17 +1212,16 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	if (err < 0)
 		return err;
 
-	if (protocol == htons(ETH_P_IP)) {
-		iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);
+	iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);
+	ipv6h = skb->encapsulation ? inner_ipv6_hdr(skb) : ipv6_hdr(skb);
+
+	if (iph->version == 4) {
 		tcph = skb->encapsulation ? inner_tcp_hdr(skb) : tcp_hdr(skb);
 		iph->tot_len = 0;
 		iph->check = 0;
 		tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
 						 0, IPPROTO_TCP, 0);
-	} else if (skb_is_gso_v6(skb)) {
-
-		ipv6h = skb->encapsulation ? inner_ipv6_hdr(skb)
-					   : ipv6_hdr(skb);
+	} else if (ipv6h->version == 6) {
 		tcph = skb->encapsulation ? inner_tcp_hdr(skb) : tcp_hdr(skb);
 		ipv6h->payload_len = 0;
 		tcph->check = ~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr,
@@ -1280,13 +1279,9 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 					 I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM;
 			}
 		} else if (tx_flags & I40E_TX_FLAGS_IPV6) {
-			if (tx_flags & I40E_TX_FLAGS_TSO) {
-				*cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6;
+			*cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6;
+			if (tx_flags & I40E_TX_FLAGS_TSO)
 				ip_hdr(skb)->check = 0;
-			} else {
-				*cd_tunneling |=
-					 I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM;
-			}
 		}
 
 		/* Now set the ctx descriptor fields */
@@ -1296,6 +1291,11 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 tx_flags,
 				   ((skb_inner_network_offset(skb) -
 					skb_transport_offset(skb)) >> 1) <<
 				   I40E_TXD_CTX_QW0_NATLEN_SHIFT;
+		if (this_ip_hdr->version == 6) {
+			tx_flags &= ~I40E_TX_FLAGS_IPV4;
+			tx_flags |= I40E_TX_FLAGS_IPV6;
+		}
+
 
 	} else {
 		network_hdr_len = skb_network_header_len(skb);
-- 
cgit v1.2.3


From e147758d9aef1e41dad331b21df206200cf16e80 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 21 Feb 2015 06:44:33 +0000
Subject: i40e: disconnect irqs on shutdown

Combine the ICR0 shutdown with the standard interrupt shutdown, and
add the interrupt clearing to the PCI shutdown path.

This prevents the driver from allowing stray interrupts or causing
system logs from un-handled interrupts.

Change-ID: I48f6ab95cad7f8ca77c1f26c92a51cc1034ced43
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 9751465f29c7..8bfd2545122d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3842,6 +3842,12 @@ static void i40e_clear_interrupt_scheme(struct i40e_pf *pf)
 {
 	int i;
 
+	i40e_stop_misc_vector(pf);
+	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
+		synchronize_irq(pf->msix_entries[0].vector);
+		free_irq(pf->msix_entries[0].vector, pf);
+	}
+
 	i40e_put_lump(pf->irq_pile, 0, I40E_PILE_VALID_BIT-1);
 	for (i = 0; i < pf->num_alloc_vsi; i++)
 		if (pf->vsi[i])
@@ -9578,12 +9584,6 @@ static void i40e_remove(struct pci_dev *pdev)
 	if (pf->vsi[pf->lan_vsi])
 		i40e_vsi_release(pf->vsi[pf->lan_vsi]);
 
-	i40e_stop_misc_vector(pf);
-	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
-		synchronize_irq(pf->msix_entries[0].vector);
-		free_irq(pf->msix_entries[0].vector, pf);
-	}
-
 	/* shutdown and destroy the HMC */
 	if (pf->hw.hmc.hmc_obj) {
 		ret_code = i40e_shutdown_lan_hmc(&pf->hw);
@@ -9737,6 +9737,8 @@ static void i40e_shutdown(struct pci_dev *pdev)
 	wr32(hw, I40E_PFPM_APM, (pf->wol_en ? I40E_PFPM_APM_APME_MASK : 0));
 	wr32(hw, I40E_PFPM_WUFC, (pf->wol_en ? I40E_PFPM_WUFC_MAG_MASK : 0));
 
+	i40e_clear_interrupt_scheme(pf);
+
 	if (system_state == SYSTEM_POWER_OFF) {
 		pci_wake_from_d3(pdev, pf->wol_en);
 		pci_set_power_state(pdev, PCI_D3hot);
-- 
cgit v1.2.3


From 33c62b34e5a3d57eb8a487140ca46631fc76e10c Mon Sep 17 00:00:00 2001
From: Mitch A Williams <mitch.a.williams@intel.com>
Date: Sat, 21 Feb 2015 06:44:51 +0000
Subject: i40e: stop flow director on shutdown

In some cases, the hardware would continue to try to access the FDIR
ring after entering D3Hot state, which would cause either PCIe errors or
NMIs, depending upon system configuration.

Explicitly stop FDIR in our shutdown routine to eliminate this
possibility.

Change-ID: I1bd9fc7fd8f151fe24cad132ac9adddab923e3af
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 8bfd2545122d..dadda3c5d658 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9558,6 +9558,7 @@ static void i40e_remove(struct pci_dev *pdev)
 	set_bit(__I40E_DOWN, &pf->state);
 	del_timer_sync(&pf->service_timer);
 	cancel_work_sync(&pf->service_task);
+	i40e_fdir_teardown(pf);
 
 	if (pf->flags & I40E_FLAG_SRIOV_ENABLED) {
 		i40e_free_vfs(pf);
-- 
cgit v1.2.3


From 2c47e351f61b66f2e870bfd634e471a6ab1af920 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 21 Feb 2015 06:45:10 +0000
Subject: i40e: catch NVM write semaphore timeout and retry

In some circumstances, a multi-write transaction takes longer than the
default 3 minute timeout on the write semaphore.  If the write failed with
an EBUSY status, this is likely the problem, so here we try to reacquire
the semaphore then retry the write.  We only do one retry, then give up.

Change-ID: I1c8be60688acc2f39573839579baf601207c4a36
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_nvm.c | 35 ++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 3e70f2e45a47..5defe0d63514 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -679,9 +679,11 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
 {
 	i40e_status status;
 	enum i40e_nvmupd_cmd upd_cmd;
+	bool retry_attempt = false;
 
 	upd_cmd = i40e_nvmupd_validate_command(hw, cmd, errno);
 
+retry:
 	switch (upd_cmd) {
 	case I40E_NVMUPD_WRITE_CON:
 		status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno);
@@ -725,6 +727,39 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw,
 		*errno = -ESRCH;
 		break;
 	}
+
+	/* In some circumstances, a multi-write transaction takes longer
+	 * than the default 3 minute timeout on the write semaphore.  If
+	 * the write failed with an EBUSY status, this is likely the problem,
+	 * so here we try to reacquire the semaphore then retry the write.
+	 * We only do one retry, then give up.
+	 */
+	if (status && (hw->aq.asq_last_status == I40E_AQ_RC_EBUSY) &&
+	    !retry_attempt) {
+		i40e_status old_status = status;
+		u32 old_asq_status = hw->aq.asq_last_status;
+		u32 gtime;
+
+		gtime = rd32(hw, I40E_GLVFGEN_TIMER);
+		if (gtime >= hw->nvm.hw_semaphore_timeout) {
+			i40e_debug(hw, I40E_DEBUG_ALL,
+				   "NVMUPD: write semaphore expired (%d >= %lld), retrying\n",
+				   gtime, hw->nvm.hw_semaphore_timeout);
+			i40e_release_nvm(hw);
+			status = i40e_acquire_nvm(hw, I40E_RESOURCE_WRITE);
+			if (status) {
+				i40e_debug(hw, I40E_DEBUG_ALL,
+					   "NVMUPD: write semaphore reacquire failed aq_err = %d\n",
+					   hw->aq.asq_last_status);
+				status = old_status;
+				hw->aq.asq_last_status = old_asq_status;
+			} else {
+				retry_attempt = true;
+				goto retry;
+			}
+		}
+	}
+
 	return status;
 }
 
-- 
cgit v1.2.3


From 65d13461d7c3fa822ff2000d2c0fe5f5b1943cb9 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 21 Feb 2015 06:45:28 +0000
Subject: i40e: check pointers before use

Make sure we don't try to dereference NULL pointers when returning values
from the AdminQ calls.

Change-ID: Ia6694f2f415d50acf0aba063c863568742799aff
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index 2a705a116227..6aea65dae5ed 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -2847,7 +2847,7 @@ i40e_status i40e_aq_add_udp_tunnel(struct i40e_hw *hw,
 
 	status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details);
 
-	if (!status)
+	if (!status && filter_index)
 		*filter_index = resp->index;
 
 	return status;
-- 
cgit v1.2.3


From 2b0c2e2d2a43357fc51d3499bc405d0d05df2451 Mon Sep 17 00:00:00 2001
From: Sujith Sankar <ssujith@cisco.com>
Date: Wed, 25 Feb 2015 15:26:55 +0530
Subject: enic: do notify_check before returning credits

We should complete notify_check before returning the credits. Once we return the
credits, adaptor may access the notify data.

Signed-off-by: Sujith Sankar <ssujith@cisco.com>
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/cisco/enic/enic_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 9cbe038a388e..a5179bfcdc2c 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -272,8 +272,8 @@ static irqreturn_t enic_isr_legacy(int irq, void *data)
 	}
 
 	if (ENIC_TEST_INTR(pba, notify_intr)) {
-		vnic_intr_return_all_credits(&enic->intr[notify_intr]);
 		enic_notify_check(enic);
+		vnic_intr_return_all_credits(&enic->intr[notify_intr]);
 	}
 
 	if (ENIC_TEST_INTR(pba, err_intr)) {
@@ -346,8 +346,8 @@ static irqreturn_t enic_isr_msix_notify(int irq, void *data)
 	struct enic *enic = data;
 	unsigned int intr = enic_msix_notify_intr(enic);
 
-	vnic_intr_return_all_credits(&enic->intr[intr]);
 	enic_notify_check(enic);
+	vnic_intr_return_all_credits(&enic->intr[intr]);
 
 	return IRQ_HANDLED;
 }
-- 
cgit v1.2.3


From f01aa633e040e52603b8defd2263691d15b86cb0 Mon Sep 17 00:00:00 2001
From: Hariprasad Shenai <hariprasad@chelsio.com>
Date: Wed, 25 Feb 2015 16:50:04 +0530
Subject: cxgb4: Fix PCI-E Memory window interface for big-endian systems

When doing reads and writes to adapter memory via the PCI-E Memory Window
interface, data gets swizzled on 4-byte boundaries on Big-Endian systems
because we need to account for the register read/write interface which
incorporates a swizzle onto the Little-Endian PCI-E Bus.

Based on original work by Casey Leedom <leedom@chelsio.com>

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h |  2 +-
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 54 ++++++++++++++++++++++++------
 2 files changed, 45 insertions(+), 11 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index d6cda17efe6e..97842d03675b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1103,7 +1103,7 @@ int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port);
 #define T4_MEMORY_WRITE	0
 #define T4_MEMORY_READ	1
 int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr, u32 len,
-		 __be32 *buf, int dir);
+		 void *buf, int dir);
 static inline int t4_memory_write(struct adapter *adap, int mtype, u32 addr,
 				  u32 len, __be32 *buf)
 {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 4d643b65265e..853c38997c82 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -449,7 +449,7 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
  *	@mtype: memory type: MEM_EDC0, MEM_EDC1 or MEM_MC
  *	@addr: address within indicated memory type
  *	@len: amount of memory to transfer
- *	@buf: host memory buffer
+ *	@hbuf: host memory buffer
  *	@dir: direction of transfer T4_MEMORY_READ (1) or T4_MEMORY_WRITE (0)
  *
  *	Reads/writes an [almost] arbitrary memory region in the firmware: the
@@ -460,15 +460,17 @@ int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, u64 *ecc)
  *	caller's responsibility to perform appropriate byte order conversions.
  */
 int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
-		 u32 len, __be32 *buf, int dir)
+		 u32 len, void *hbuf, int dir)
 {
 	u32 pos, offset, resid, memoffset;
 	u32 edc_size, mc_size, win_pf, mem_reg, mem_aperture, mem_base;
+	u32 *buf;
 
 	/* Argument sanity checks ...
 	 */
-	if (addr & 0x3)
+	if (addr & 0x3 || (uintptr_t)hbuf & 0x3)
 		return -EINVAL;
+	buf = (u32 *)hbuf;
 
 	/* It's convenient to be able to handle lengths which aren't a
 	 * multiple of 32-bits because we often end up transferring files to
@@ -532,14 +534,45 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
 
 	/* Transfer data to/from the adapter as long as there's an integral
 	 * number of 32-bit transfers to complete.
+	 *
+	 * A note on Endianness issues:
+	 *
+	 * The "register" reads and writes below from/to the PCI-E Memory
+	 * Window invoke the standard adapter Big-Endian to PCI-E Link
+	 * Little-Endian "swizzel."  As a result, if we have the following
+	 * data in adapter memory:
+	 *
+	 *     Memory:  ... | b0 | b1 | b2 | b3 | ...
+	 *     Address:      i+0  i+1  i+2  i+3
+	 *
+	 * Then a read of the adapter memory via the PCI-E Memory Window
+	 * will yield:
+	 *
+	 *     x = readl(i)
+	 *         31                  0
+	 *         [ b3 | b2 | b1 | b0 ]
+	 *
+	 * If this value is stored into local memory on a Little-Endian system
+	 * it will show up correctly in local memory as:
+	 *
+	 *     ( ..., b0, b1, b2, b3, ... )
+	 *
+	 * But on a Big-Endian system, the store will show up in memory
+	 * incorrectly swizzled as:
+	 *
+	 *     ( ..., b3, b2, b1, b0, ... )
+	 *
+	 * So we need to account for this in the reads and writes to the
+	 * PCI-E Memory Window below by undoing the register read/write
+	 * swizzels.
 	 */
 	while (len > 0) {
 		if (dir == T4_MEMORY_READ)
-			*buf++ = (__force __be32) t4_read_reg(adap,
-							mem_base + offset);
+			*buf++ = le32_to_cpu((__force __le32)t4_read_reg(adap,
+						mem_base + offset));
 		else
 			t4_write_reg(adap, mem_base + offset,
-				     (__force u32) *buf++);
+				     (__force u32)cpu_to_le32(*buf++));
 		offset += sizeof(__be32);
 		len -= sizeof(__be32);
 
@@ -568,15 +601,16 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
 	 */
 	if (resid) {
 		union {
-			__be32 word;
+			u32 word;
 			char byte[4];
 		} last;
 		unsigned char *bp;
 		int i;
 
 		if (dir == T4_MEMORY_READ) {
-			last.word = (__force __be32) t4_read_reg(adap,
-							mem_base + offset);
+			last.word = le32_to_cpu(
+					(__force __le32)t4_read_reg(adap,
+						mem_base + offset));
 			for (bp = (unsigned char *)buf, i = resid; i < 4; i++)
 				bp[i] = last.byte[i];
 		} else {
@@ -584,7 +618,7 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
 			for (i = resid; i < 4; i++)
 				last.byte[i] = 0;
 			t4_write_reg(adap, mem_base + offset,
-				     (__force u32) last.word);
+				     (__force u32)cpu_to_le32(last.word));
 		}
 	}
 
-- 
cgit v1.2.3


From e65ad3be869b45f90a401d8ce4d4e7381c99ceb0 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 25 Feb 2015 16:35:32 +0300
Subject: rocker: add a check for NULL in rocker_probe_ports()

Make sure kmalloc() succeeds.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/rocker/rocker.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 34389b6aa67c..713a13cb8c14 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4201,6 +4201,8 @@ static int rocker_probe_ports(struct rocker *rocker)
 
 	alloc_size = sizeof(struct rocker_port *) * rocker->port_count;
 	rocker->ports = kmalloc(alloc_size, GFP_KERNEL);
+	if (!rocker->ports)
+		return -ENOMEM;
 	for (i = 0; i < rocker->port_count; i++) {
 		err = rocker_probe_port(rocker, i);
 		if (err)
-- 
cgit v1.2.3


From 5f2ebfbee68872762ad76f735277ed7afa074d76 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 25 Feb 2015 16:36:12 +0300
Subject: rocker: silence shift wrapping warning

"val" is declared as a u64 so static checkers complain that this shift
can wrap.  I don't have the hardware but probably it's doesn't have over
31 ports.  Still we may as well silence the warning even if it's not a
real bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/rocker/rocker.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 713a13cb8c14..9fb6948e14c6 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -1257,9 +1257,9 @@ static void rocker_port_set_enable(struct rocker_port *rocker_port, bool enable)
 	u64 val = rocker_read64(rocker_port->rocker, PORT_PHYS_ENABLE);
 
 	if (enable)
-		val |= 1 << rocker_port->lport;
+		val |= 1ULL << rocker_port->lport;
 	else
-		val &= ~(1 << rocker_port->lport);
+		val &= ~(1ULL << rocker_port->lport);
 	rocker_write64(rocker_port->rocker, PORT_PHYS_ENABLE, val);
 }
 
-- 
cgit v1.2.3


From 7488c3e3d8384e6a3d71c6a05645b3db8d82d275 Mon Sep 17 00:00:00 2001
From: Luca Ceresoli <luca@lucaceresoli.net>
Date: Thu, 26 Feb 2015 00:58:12 +0100
Subject: net: asix: add support for the Sitecom LN-028 USB adapter

Just another AX88178-based 10/100/1000 USB-to-Ethernet dongle. This one
shows up in lsusb as: "Sitecom Europe B.V. LN-028 Network USB 2.0 Adapter".

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Francois Romieu <romieu@fr.zoreil.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/Kconfig        | 1 +
 drivers/net/usb/asix_devices.c | 4 ++++
 2 files changed, 5 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 37eed4d84e9c..0732f9e16128 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -161,6 +161,7 @@ config USB_NET_AX8817X
 	    * Linksys USB200M
 	    * Netgear FA120
 	    * Sitecom LN-029
+	    * Sitecom LN-028
 	    * Intellinet USB 2.0 Ethernet
 	    * ST Lab USB 2.0 Ethernet
 	    * TrendNet TU2-ET100
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index bf49792062a2..1173a24feda3 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -978,6 +978,10 @@ static const struct usb_device_id	products [] = {
 	// Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
 	USB_DEVICE (0x0df6, 0x0056),
 	.driver_info =  (unsigned long) &ax88178_info,
+}, {
+	// Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter"
+	USB_DEVICE (0x0df6, 0x061c),
+	.driver_info =  (unsigned long) &ax88178_info,
 }, {
 	// corega FEther USB2-TX
 	USB_DEVICE (0x07aa, 0x0017),
-- 
cgit v1.2.3


From c30e76a728beb5bbfff0ddeb573e28927853d4b8 Mon Sep 17 00:00:00 2001
From: "Lendacky, Thomas" <Thomas.Lendacky@amd.com>
Date: Wed, 25 Feb 2015 13:50:12 -0600
Subject: amd-xgbe: Request IRQs only after driver is fully setup

It is possible that the hardware may not have been properly shutdown
before this driver gets control, through use by firmware, for example.
Until the driver is loaded, interrupts associated with the hardware
could go pending. When the IRQs are requested napi support has not
been initialized yet, but the ISR will get control and schedule napi
processing resulting in a kernel panic because the poll routine has not
been set.

Adjust the code so that the driver is fully ready to handle and process
interrupts as soon as the IRQs are requested. This involves requesting
and freeing IRQs during start and stop processing and ordering the napi
add and delete calls appropriately.

Also adjust the powerup and powerdown routines to match the start and
stop routines in regards to the ordering of tasks, including napi
related calls.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 175 ++++++++++++++++---------------
 1 file changed, 93 insertions(+), 82 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index b93d4404d975..885b02b5be07 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -609,6 +609,68 @@ static void xgbe_napi_disable(struct xgbe_prv_data *pdata, unsigned int del)
 	}
 }
 
+static int xgbe_request_irqs(struct xgbe_prv_data *pdata)
+{
+	struct xgbe_channel *channel;
+	struct net_device *netdev = pdata->netdev;
+	unsigned int i;
+	int ret;
+
+	ret = devm_request_irq(pdata->dev, pdata->dev_irq, xgbe_isr, 0,
+			       netdev->name, pdata);
+	if (ret) {
+		netdev_alert(netdev, "error requesting irq %d\n",
+			     pdata->dev_irq);
+		return ret;
+	}
+
+	if (!pdata->per_channel_irq)
+		return 0;
+
+	channel = pdata->channel;
+	for (i = 0; i < pdata->channel_count; i++, channel++) {
+		snprintf(channel->dma_irq_name,
+			 sizeof(channel->dma_irq_name) - 1,
+			 "%s-TxRx-%u", netdev_name(netdev),
+			 channel->queue_index);
+
+		ret = devm_request_irq(pdata->dev, channel->dma_irq,
+				       xgbe_dma_isr, 0,
+				       channel->dma_irq_name, channel);
+		if (ret) {
+			netdev_alert(netdev, "error requesting irq %d\n",
+				     channel->dma_irq);
+			goto err_irq;
+		}
+	}
+
+	return 0;
+
+err_irq:
+	/* Using an unsigned int, 'i' will go to UINT_MAX and exit */
+	for (i--, channel--; i < pdata->channel_count; i--, channel--)
+		devm_free_irq(pdata->dev, channel->dma_irq, channel);
+
+	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
+
+	return ret;
+}
+
+static void xgbe_free_irqs(struct xgbe_prv_data *pdata)
+{
+	struct xgbe_channel *channel;
+	unsigned int i;
+
+	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
+
+	if (!pdata->per_channel_irq)
+		return;
+
+	channel = pdata->channel;
+	for (i = 0; i < pdata->channel_count; i++, channel++)
+		devm_free_irq(pdata->dev, channel->dma_irq, channel);
+}
+
 void xgbe_init_tx_coalesce(struct xgbe_prv_data *pdata)
 {
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
@@ -810,20 +872,20 @@ int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
 		return -EINVAL;
 	}
 
-	phy_stop(pdata->phydev);
-
 	spin_lock_irqsave(&pdata->lock, flags);
 
 	if (caller == XGMAC_DRIVER_CONTEXT)
 		netif_device_detach(netdev);
 
 	netif_tx_stop_all_queues(netdev);
-	xgbe_napi_disable(pdata, 0);
 
-	/* Powerdown Tx/Rx */
 	hw_if->powerdown_tx(pdata);
 	hw_if->powerdown_rx(pdata);
 
+	xgbe_napi_disable(pdata, 0);
+
+	phy_stop(pdata->phydev);
+
 	pdata->power_down = 1;
 
 	spin_unlock_irqrestore(&pdata->lock, flags);
@@ -854,14 +916,14 @@ int xgbe_powerup(struct net_device *netdev, unsigned int caller)
 
 	phy_start(pdata->phydev);
 
-	/* Enable Tx/Rx */
+	xgbe_napi_enable(pdata, 0);
+
 	hw_if->powerup_tx(pdata);
 	hw_if->powerup_rx(pdata);
 
 	if (caller == XGMAC_DRIVER_CONTEXT)
 		netif_device_attach(netdev);
 
-	xgbe_napi_enable(pdata, 0);
 	netif_tx_start_all_queues(netdev);
 
 	spin_unlock_irqrestore(&pdata->lock, flags);
@@ -875,6 +937,7 @@ static int xgbe_start(struct xgbe_prv_data *pdata)
 {
 	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct net_device *netdev = pdata->netdev;
+	int ret;
 
 	DBGPR("-->xgbe_start\n");
 
@@ -884,17 +947,31 @@ static int xgbe_start(struct xgbe_prv_data *pdata)
 
 	phy_start(pdata->phydev);
 
+	xgbe_napi_enable(pdata, 1);
+
+	ret = xgbe_request_irqs(pdata);
+	if (ret)
+		goto err_napi;
+
 	hw_if->enable_tx(pdata);
 	hw_if->enable_rx(pdata);
 
 	xgbe_init_tx_timers(pdata);
 
-	xgbe_napi_enable(pdata, 1);
 	netif_tx_start_all_queues(netdev);
 
 	DBGPR("<--xgbe_start\n");
 
 	return 0;
+
+err_napi:
+	xgbe_napi_disable(pdata, 1);
+
+	phy_stop(pdata->phydev);
+
+	hw_if->exit(pdata);
+
+	return ret;
 }
 
 static void xgbe_stop(struct xgbe_prv_data *pdata)
@@ -907,16 +984,21 @@ static void xgbe_stop(struct xgbe_prv_data *pdata)
 
 	DBGPR("-->xgbe_stop\n");
 
-	phy_stop(pdata->phydev);
-
 	netif_tx_stop_all_queues(netdev);
-	xgbe_napi_disable(pdata, 1);
 
 	xgbe_stop_tx_timers(pdata);
 
 	hw_if->disable_tx(pdata);
 	hw_if->disable_rx(pdata);
 
+	xgbe_free_irqs(pdata);
+
+	xgbe_napi_disable(pdata, 1);
+
+	phy_stop(pdata->phydev);
+
+	hw_if->exit(pdata);
+
 	channel = pdata->channel;
 	for (i = 0; i < pdata->channel_count; i++, channel++) {
 		if (!channel->tx_ring)
@@ -931,10 +1013,6 @@ static void xgbe_stop(struct xgbe_prv_data *pdata)
 
 static void xgbe_restart_dev(struct xgbe_prv_data *pdata)
 {
-	struct xgbe_channel *channel;
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
-	unsigned int i;
-
 	DBGPR("-->xgbe_restart_dev\n");
 
 	/* If not running, "restart" will happen on open */
@@ -942,19 +1020,10 @@ static void xgbe_restart_dev(struct xgbe_prv_data *pdata)
 		return;
 
 	xgbe_stop(pdata);
-	synchronize_irq(pdata->dev_irq);
-	if (pdata->per_channel_irq) {
-		channel = pdata->channel;
-		for (i = 0; i < pdata->channel_count; i++, channel++)
-			synchronize_irq(channel->dma_irq);
-	}
 
 	xgbe_free_tx_data(pdata);
 	xgbe_free_rx_data(pdata);
 
-	/* Issue software reset to device */
-	hw_if->exit(pdata);
-
 	xgbe_start(pdata);
 
 	DBGPR("<--xgbe_restart_dev\n");
@@ -1283,10 +1352,7 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata,
 static int xgbe_open(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct xgbe_desc_if *desc_if = &pdata->desc_if;
-	struct xgbe_channel *channel = NULL;
-	unsigned int i = 0;
 	int ret;
 
 	DBGPR("-->xgbe_open\n");
@@ -1329,55 +1395,14 @@ static int xgbe_open(struct net_device *netdev)
 	INIT_WORK(&pdata->restart_work, xgbe_restart);
 	INIT_WORK(&pdata->tx_tstamp_work, xgbe_tx_tstamp);
 
-	/* Request interrupts */
-	ret = devm_request_irq(pdata->dev, pdata->dev_irq, xgbe_isr, 0,
-			       netdev->name, pdata);
-	if (ret) {
-		netdev_alert(netdev, "error requesting irq %d\n",
-			     pdata->dev_irq);
-		goto err_rings;
-	}
-
-	if (pdata->per_channel_irq) {
-		channel = pdata->channel;
-		for (i = 0; i < pdata->channel_count; i++, channel++) {
-			snprintf(channel->dma_irq_name,
-				 sizeof(channel->dma_irq_name) - 1,
-				 "%s-TxRx-%u", netdev_name(netdev),
-				 channel->queue_index);
-
-			ret = devm_request_irq(pdata->dev, channel->dma_irq,
-					       xgbe_dma_isr, 0,
-					       channel->dma_irq_name, channel);
-			if (ret) {
-				netdev_alert(netdev,
-					     "error requesting irq %d\n",
-					     channel->dma_irq);
-				goto err_irq;
-			}
-		}
-	}
-
 	ret = xgbe_start(pdata);
 	if (ret)
-		goto err_start;
+		goto err_rings;
 
 	DBGPR("<--xgbe_open\n");
 
 	return 0;
 
-err_start:
-	hw_if->exit(pdata);
-
-err_irq:
-	if (pdata->per_channel_irq) {
-		/* Using an unsigned int, 'i' will go to UINT_MAX and exit */
-		for (i--, channel--; i < pdata->channel_count; i--, channel--)
-			devm_free_irq(pdata->dev, channel->dma_irq, channel);
-	}
-
-	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
-
 err_rings:
 	desc_if->free_ring_resources(pdata);
 
@@ -1399,30 +1424,16 @@ err_phy_init:
 static int xgbe_close(struct net_device *netdev)
 {
 	struct xgbe_prv_data *pdata = netdev_priv(netdev);
-	struct xgbe_hw_if *hw_if = &pdata->hw_if;
 	struct xgbe_desc_if *desc_if = &pdata->desc_if;
-	struct xgbe_channel *channel;
-	unsigned int i;
 
 	DBGPR("-->xgbe_close\n");
 
 	/* Stop the device */
 	xgbe_stop(pdata);
 
-	/* Issue software reset to device */
-	hw_if->exit(pdata);
-
 	/* Free the ring descriptors and buffers */
 	desc_if->free_ring_resources(pdata);
 
-	/* Release the interrupts */
-	devm_free_irq(pdata->dev, pdata->dev_irq, pdata);
-	if (pdata->per_channel_irq) {
-		channel = pdata->channel;
-		for (i = 0; i < pdata->channel_count; i++, channel++)
-			devm_free_irq(pdata->dev, channel->dma_irq, channel);
-	}
-
 	/* Free the channel and ring structures */
 	xgbe_free_channels(pdata);
 
-- 
cgit v1.2.3


From b70661c70830d5c69aab6844f2d86d2daf124fbd Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 25 Feb 2015 16:31:57 +0100
Subject: net: smc91x: use run-time configuration on all ARM machines

The smc91x driver traditionally gets configured at compile-time
for whichever hardware it runs on. This no longer works on
ARM as we continue to move to building all-in-one kernels.

Most ARM configurations with this driver already use run-time
configuration through DT or through platform_data, but a
few have not been converted yet.

I've checked all ARM boards that use this driver in their
legacy board files, and converted the ones that were using
compile-time configuration in smc91x.h to behave like the
other ones and provide the interrupt polarity along with
the MMIO configuration (width, stride) at platform device
creation time.

In particular, these combinations were previously selectable
in Kconfig but in fact broken:

- sa1100 assabet plus pleb
- msm combined with any other armv6/v7 platform
- pxa-idp combined with any non-DMA pxa variant
- LogicPD PXA270 combined with any other pxa
- nomadik combined with any other armv4/v5 platform,
  e.g. versatile.

None of these seem critical enough to warrant a backport
to stable, but it would be nice to clean this up for good.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
----
I would like the patch to get merged through netdev, after
Robert and/or Linus have verified it on at least some hardware.

There are a few other non-ARM platforms using this driver,
I could do the same patch for those if we want to take
it further.

 arch/arm/mach-msm/board-halibut.c    |   8 ++++-
 arch/arm/mach-msm/board-qsd8x50.c    |   8 ++++-
 arch/arm/mach-pxa/idp.c              |   5 +++
 arch/arm/mach-pxa/lpd270.c           |   8 ++++-
 arch/arm/mach-realview/core.c        |   7 ++++
 arch/arm/mach-realview/realview_eb.c |   2 +-
 arch/arm/mach-sa1100/neponset.c      |   6 ++++
 arch/arm/mach-sa1100/pleb.c          |   7 ++++
 drivers/net/ethernet/smsc/smc91x.c   |   9 +++--
 drivers/net/ethernet/smsc/smc91x.h   | 114 ++----------------------------------------------------------
 10 files changed, 57 insertions(+), 117 deletions(-)
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91x.c |   9 ++-
 drivers/net/ethernet/smsc/smc91x.h | 114 +------------------------------------
 2 files changed, 10 insertions(+), 113 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index fa3f193b5f4d..209ee1b27f8d 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -91,6 +91,10 @@ static const char version[] =
 
 #include "smc91x.h"
 
+#if defined(CONFIG_ASSABET_NEPONSET)
+#include <mach/neponset.h>
+#endif
+
 #ifndef SMC_NOWAIT
 # define SMC_NOWAIT		0
 #endif
@@ -2355,8 +2359,9 @@ static int smc_drv_probe(struct platform_device *pdev)
 	ret = smc_request_attrib(pdev, ndev);
 	if (ret)
 		goto out_release_io;
-#if defined(CONFIG_ASSABET_NEPONSET) && !defined(CONFIG_SA1100_PLEB)
-	neponset_ncr_set(NCR_ENET_OSC_EN);
+#if defined(CONFIG_ASSABET_NEPONSET)
+	if (machine_is_assabet() && machine_has_neponset())
+		neponset_ncr_set(NCR_ENET_OSC_EN);
 #endif
 	platform_set_drvdata(pdev, ndev);
 	ret = smc_enable_device(pdev);
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index be67baf5f677..3a18501d1068 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -39,14 +39,7 @@
  * Define your architecture specific bus configuration parameters here.
  */
 
-#if defined(CONFIG_ARCH_LUBBOCK) ||\
-    defined(CONFIG_MACH_MAINSTONE) ||\
-    defined(CONFIG_MACH_ZYLONITE) ||\
-    defined(CONFIG_MACH_LITTLETON) ||\
-    defined(CONFIG_MACH_ZYLONITE2) ||\
-    defined(CONFIG_ARCH_VIPER) ||\
-    defined(CONFIG_MACH_STARGATE2) ||\
-    defined(CONFIG_ARCH_VERSATILE)
+#if defined(CONFIG_ARM)
 
 #include <asm/mach-types.h>
 
@@ -74,95 +67,8 @@
 /* We actually can't write halfwords properly if not word aligned */
 static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 {
-	if ((machine_is_mainstone() || machine_is_stargate2()) && reg & 2) {
-		unsigned int v = val << 16;
-		v |= readl(ioaddr + (reg & ~2)) & 0xffff;
-		writel(v, ioaddr + (reg & ~2));
-	} else {
-		writew(val, ioaddr + reg);
-	}
-}
-
-#elif defined(CONFIG_SA1100_PLEB)
-/* We can only do 16-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	0
-#define SMC_IO_SHIFT		0
-#define SMC_NOWAIT		1
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_insb(a, r, p, l)	readsb((a) + (r), p, (l))
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, (l))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#define SMC_IRQ_FLAGS		(-1)
-
-#elif defined(CONFIG_SA1100_ASSABET)
-
-#include <mach/neponset.h>
-
-/* We can only do 8-bit reads and writes in the static memory space. */
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	0
-#define SMC_CAN_USE_32BIT	0
-#define SMC_NOWAIT		1
-
-/* The first two address lines aren't connected... */
-#define SMC_IO_SHIFT		2
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_insb(a, r, p, l)	readsb((a) + (r), p, (l))
-#define SMC_outsb(a, r, p, l)	writesb((a) + (r), p, (l))
-#define SMC_IRQ_FLAGS		(-1)	/* from resource */
-
-#elif	defined(CONFIG_MACH_LOGICPD_PXA270) ||	\
-	defined(CONFIG_MACH_NOMADIK_8815NHK)
-
-#define SMC_CAN_USE_8BIT	0
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	0
-#define SMC_IO_SHIFT		0
-#define SMC_NOWAIT		1
-
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#elif	defined(CONFIG_ARCH_INNOKOM) || \
-	defined(CONFIG_ARCH_PXA_IDP) || \
-	defined(CONFIG_ARCH_RAMSES) || \
-	defined(CONFIG_ARCH_PCM027)
-
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	1
-#define SMC_IO_SHIFT		0
-#define SMC_NOWAIT		1
-#define SMC_USE_PXA_DMA		1
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_inl(a, r)		readl((a) + (r))
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_outl(v, a, r)	writel(v, (a) + (r))
-#define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
-#define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-#define SMC_IRQ_FLAGS		(-1)	/* from resource */
-
-/* We actually can't write halfwords properly if not word aligned */
-static inline void
-SMC_outw(u16 val, void __iomem *ioaddr, int reg)
-{
-	if (reg & 2) {
+	if ((machine_is_mainstone() || machine_is_stargate2() ||
+	     machine_is_pxa_idp()) && reg & 2) {
 		unsigned int v = val << 16;
 		v |= readl(ioaddr + (reg & ~2)) & 0xffff;
 		writel(v, ioaddr + (reg & ~2));
@@ -237,20 +143,6 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define RPC_LSA_DEFAULT         RPC_LED_100_10
 #define RPC_LSB_DEFAULT         RPC_LED_TX_RX
 
-#elif defined(CONFIG_ARCH_MSM)
-
-#define SMC_CAN_USE_8BIT	0
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	0
-#define SMC_NOWAIT		1
-
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
-#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
-
-#define SMC_IRQ_FLAGS		IRQF_TRIGGER_HIGH
-
 #elif defined(CONFIG_COLDFIRE)
 
 #define SMC_CAN_USE_8BIT	0
-- 
cgit v1.2.3


From f55ea3d932df06d82f37de5826063caf938c06f2 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 26 Feb 2015 19:56:56 +0300
Subject: niu: fix error handling in niu_class_to_ethflow()

There is a discrepancy here because the niu_class_to_ethflow() returns
zero on failure and one on success but the caller expected zero on
success and negative on failure.

The problem means that we allow the user to pass classes and flow_types
which we don't want.  I've looked at it a bit and I don't see it as a
very serious bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sun/niu.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 4b51f903fb73..0c5842aeb807 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -6989,10 +6989,10 @@ static int niu_class_to_ethflow(u64 class, int *flow_type)
 		*flow_type = IP_USER_FLOW;
 		break;
 	default:
-		return 0;
+		return -EINVAL;
 	}
 
-	return 1;
+	return 0;
 }
 
 static int niu_ethflow_to_class(int flow_type, u64 *class)
@@ -7198,11 +7198,9 @@ static int niu_get_ethtool_tcam_entry(struct niu *np,
 	class = (tp->key[0] & TCAM_V4KEY0_CLASS_CODE) >>
 		TCAM_V4KEY0_CLASS_CODE_SHIFT;
 	ret = niu_class_to_ethflow(class, &fsp->flow_type);
-
 	if (ret < 0) {
 		netdev_info(np->dev, "niu%d: niu_class_to_ethflow failed\n",
 			    parent->index);
-		ret = -EINVAL;
 		goto out;
 	}
 
-- 
cgit v1.2.3


From 5688714977ebefa92e6dad8bd94bffaeaadc303d Mon Sep 17 00:00:00 2001
From: George McCollister <george.mccollister@gmail.com>
Date: Thu, 26 Feb 2015 15:19:30 -0600
Subject: drivers: net: cpsw: Set SECURE for dual_emac ucast

Prior to this patch, sending a packet with the source MAC address of one
of the CPSW interfaces to one of the CPSW slave ports while it's configured in
dual_emac mode would update the port_num field of the VLAN/Unicast Address
Table Entry. This would cause it to discard all incoming traffic addressed to
that MAC address, essentially rendering the port useless until the ALE table is
cleared (by starting and stopping the interface or rebooting.)

For example, if eth0 has a MAC address of 90:59:af:8f:43:e9 it will have
an ALE table entry:

00 00 00 00 59 90 02 30 e9 43 8f af
(VLAN Addr vlan_id=2 unicast type=0 port_num=0 addr=90:59:af:8f:43:e9)

If you configure another device with the same MAC address and connect it
to the first CPSW slave port and send some traffic the ALE table entry
becomes:

04 00 00 00 59 90 02 30 e9 43 8f af
(VLAN Addr vlan_id=2 unicast type=0 port_num=1 addr=90:59:af:8f:43:e9)

>From this point forward all incoming traffic addressed to
90:59:af:8f:43:e9 will be dropped.

Setting the SECURE bit for the VLAN/Unicast address table entry for each
interface's MAC address corrects the problem.

Signed-off-by: George McCollister <george.mccollister@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 7d8dd0d2182e..49b03368f4b9 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1103,7 +1103,7 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
 	cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
 			   port_mask, ALE_VLAN, slave->port_vlan, 0);
 	cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
-		priv->host_port, ALE_VLAN, slave->port_vlan);
+		priv->host_port, ALE_VLAN | ALE_SECURE, slave->port_vlan);
 }
 
 static void soft_reset_slave(struct cpsw_slave *slave)
-- 
cgit v1.2.3


From 2f1d8b9e8afa5a833d96afcd23abcb8cdf8d83ab Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 27 Feb 2015 18:35:35 -0800
Subject: macvtap: make sure neighbour code can push ethernet header

Brian reported crashes using IPv6 traffic with macvtap/veth combo.

I tracked the crashes in neigh_hh_output()

-> memcpy(skb->data - HH_DATA_MOD, hh->hh_data, HH_DATA_MOD);

Neighbour code assumes headroom to push Ethernet header is
at least 16 bytes.

It appears macvtap has only 14 bytes available on arches
where NET_IP_ALIGN is 0 (like x86)

Effect is a corruption of 2 bytes right before skb->head,
and possible crashes if accessing non existing memory.

This fix should also increase IPv4 performance, as paranoid code
in ip_finish_output2() wont have to call skb_realloc_headroom()

Reported-by: Brian Rak <brak@vultr.com>
Tested-by: Brian Rak <brak@vultr.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/macvtap.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index e40fdfccc9c1..27ecc5c4fa26 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -654,11 +654,14 @@ static void macvtap_skb_to_vnet_hdr(struct macvtap_queue *q,
 	} /* else everything is zero */
 }
 
+/* Neighbour code has some assumptions on HH_DATA_MOD alignment */
+#define MACVTAP_RESERVE HH_DATA_OFF(ETH_HLEN)
+
 /* Get packet from user space buffer */
 static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 				struct iov_iter *from, int noblock)
 {
-	int good_linear = SKB_MAX_HEAD(NET_IP_ALIGN);
+	int good_linear = SKB_MAX_HEAD(MACVTAP_RESERVE);
 	struct sk_buff *skb;
 	struct macvlan_dev *vlan;
 	unsigned long total_len = iov_iter_count(from);
@@ -722,7 +725,7 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 			linear = macvtap16_to_cpu(q, vnet_hdr.hdr_len);
 	}
 
-	skb = macvtap_alloc_skb(&q->sk, NET_IP_ALIGN, copylen,
+	skb = macvtap_alloc_skb(&q->sk, MACVTAP_RESERVE, copylen,
 				linear, noblock, &err);
 	if (!skb)
 		goto err;
-- 
cgit v1.2.3


From 4092e6acf5cb16f56154e2dd22d647023dc3d646 Mon Sep 17 00:00:00 2001
From: Jaedon Shin <jaedon.shin@gmail.com>
Date: Sat, 28 Feb 2015 11:48:26 +0900
Subject: net: bcmgenet: fix throughtput regression

This patch adds bcmgenet_tx_poll for the tx_rings. This can reduce the
interrupt load and send xmit in network stack on time. This also
separated for the completion of tx_ring16 from bcmgenet_poll.

The bcmgenet_tx_reclaim of tx_ring[{0,1,2,3}] operative by an interrupt
is to be not more than a certain number TxBDs. It is caused by too
slowly reclaiming the transmitted skb. Therefore, performance
degradation of xmit after 605ad7f ("tcp: refine TSO autosizing").

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 113 +++++++++++++++++++------
 drivers/net/ethernet/broadcom/genet/bcmgenet.h |   2 +
 2 files changed, 88 insertions(+), 27 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index ff83c46bc389..2874a004f815 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -971,13 +971,14 @@ static inline void bcmgenet_tx_ring_int_disable(struct bcmgenet_priv *priv,
 }
 
 /* Unlocked version of the reclaim routine */
-static void __bcmgenet_tx_reclaim(struct net_device *dev,
-				  struct bcmgenet_tx_ring *ring)
+static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev,
+					  struct bcmgenet_tx_ring *ring)
 {
 	struct bcmgenet_priv *priv = netdev_priv(dev);
 	int last_tx_cn, last_c_index, num_tx_bds;
 	struct enet_cb *tx_cb_ptr;
 	struct netdev_queue *txq;
+	unsigned int pkts_compl = 0;
 	unsigned int bds_compl;
 	unsigned int c_index;
 
@@ -1005,6 +1006,7 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev,
 		tx_cb_ptr = ring->cbs + last_c_index;
 		bds_compl = 0;
 		if (tx_cb_ptr->skb) {
+			pkts_compl++;
 			bds_compl = skb_shinfo(tx_cb_ptr->skb)->nr_frags + 1;
 			dev->stats.tx_bytes += tx_cb_ptr->skb->len;
 			dma_unmap_single(&dev->dev,
@@ -1028,23 +1030,45 @@ static void __bcmgenet_tx_reclaim(struct net_device *dev,
 		last_c_index &= (num_tx_bds - 1);
 	}
 
-	if (ring->free_bds > (MAX_SKB_FRAGS + 1))
-		ring->int_disable(priv, ring);
-
-	if (netif_tx_queue_stopped(txq))
-		netif_tx_wake_queue(txq);
+	if (ring->free_bds > (MAX_SKB_FRAGS + 1)) {
+		if (netif_tx_queue_stopped(txq))
+			netif_tx_wake_queue(txq);
+	}
 
 	ring->c_index = c_index;
+
+	return pkts_compl;
 }
 
-static void bcmgenet_tx_reclaim(struct net_device *dev,
+static unsigned int bcmgenet_tx_reclaim(struct net_device *dev,
 				struct bcmgenet_tx_ring *ring)
 {
+	unsigned int released;
 	unsigned long flags;
 
 	spin_lock_irqsave(&ring->lock, flags);
-	__bcmgenet_tx_reclaim(dev, ring);
+	released = __bcmgenet_tx_reclaim(dev, ring);
 	spin_unlock_irqrestore(&ring->lock, flags);
+
+	return released;
+}
+
+static int bcmgenet_tx_poll(struct napi_struct *napi, int budget)
+{
+	struct bcmgenet_tx_ring *ring =
+		container_of(napi, struct bcmgenet_tx_ring, napi);
+	unsigned int work_done = 0;
+
+	work_done = bcmgenet_tx_reclaim(ring->priv->dev, ring);
+
+	if (work_done == 0) {
+		napi_complete(napi);
+		ring->int_enable(ring->priv, ring);
+
+		return 0;
+	}
+
+	return budget;
 }
 
 static void bcmgenet_tx_reclaim_all(struct net_device *dev)
@@ -1302,10 +1326,8 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
 	bcmgenet_tdma_ring_writel(priv, ring->index,
 				  ring->prod_index, TDMA_PROD_INDEX);
 
-	if (ring->free_bds <= (MAX_SKB_FRAGS + 1)) {
+	if (ring->free_bds <= (MAX_SKB_FRAGS + 1))
 		netif_tx_stop_queue(txq);
-		ring->int_enable(priv, ring);
-	}
 
 out:
 	spin_unlock_irqrestore(&ring->lock, flags);
@@ -1621,6 +1643,7 @@ static int init_umac(struct bcmgenet_priv *priv)
 	struct device *kdev = &priv->pdev->dev;
 	int ret;
 	u32 reg, cpu_mask_clear;
+	int index;
 
 	dev_dbg(&priv->pdev->dev, "bcmgenet: init_umac\n");
 
@@ -1647,7 +1670,7 @@ static int init_umac(struct bcmgenet_priv *priv)
 
 	bcmgenet_intr_disable(priv);
 
-	cpu_mask_clear = UMAC_IRQ_RXDMA_BDONE;
+	cpu_mask_clear = UMAC_IRQ_RXDMA_BDONE | UMAC_IRQ_TXDMA_BDONE;
 
 	dev_dbg(kdev, "%s:Enabling RXDMA_BDONE interrupt\n", __func__);
 
@@ -1674,6 +1697,10 @@ static int init_umac(struct bcmgenet_priv *priv)
 
 	bcmgenet_intrl2_0_writel(priv, cpu_mask_clear, INTRL2_CPU_MASK_CLEAR);
 
+	for (index = 0; index < priv->hw_params->tx_queues; index++)
+		bcmgenet_intrl2_1_writel(priv, (1 << index),
+					 INTRL2_CPU_MASK_CLEAR);
+
 	/* Enable rx/tx engine.*/
 	dev_dbg(kdev, "done init umac\n");
 
@@ -1693,6 +1720,8 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
 	unsigned int first_bd;
 
 	spin_lock_init(&ring->lock);
+	ring->priv = priv;
+	netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64);
 	ring->index = index;
 	if (index == DESC_INDEX) {
 		ring->queue = 0;
@@ -1738,6 +1767,17 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
 				  TDMA_WRITE_PTR);
 	bcmgenet_tdma_ring_writel(priv, index, end_ptr * words_per_bd - 1,
 				  DMA_END_ADDR);
+
+	napi_enable(&ring->napi);
+}
+
+static void bcmgenet_fini_tx_ring(struct bcmgenet_priv *priv,
+				  unsigned int index)
+{
+	struct bcmgenet_tx_ring *ring = &priv->tx_rings[index];
+
+	napi_disable(&ring->napi);
+	netif_napi_del(&ring->napi);
 }
 
 /* Initialize a RDMA ring */
@@ -1907,7 +1947,7 @@ static int bcmgenet_dma_teardown(struct bcmgenet_priv *priv)
 	return ret;
 }
 
-static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
+static void __bcmgenet_fini_dma(struct bcmgenet_priv *priv)
 {
 	int i;
 
@@ -1926,6 +1966,18 @@ static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
 	kfree(priv->tx_cbs);
 }
 
+static void bcmgenet_fini_dma(struct bcmgenet_priv *priv)
+{
+	int i;
+
+	bcmgenet_fini_tx_ring(priv, DESC_INDEX);
+
+	for (i = 0; i < priv->hw_params->tx_queues; i++)
+		bcmgenet_fini_tx_ring(priv, i);
+
+	__bcmgenet_fini_dma(priv);
+}
+
 /* init_edma: Initialize DMA control register */
 static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
 {
@@ -1952,7 +2004,7 @@ static int bcmgenet_init_dma(struct bcmgenet_priv *priv)
 	priv->tx_cbs = kcalloc(priv->num_tx_bds, sizeof(struct enet_cb),
 			       GFP_KERNEL);
 	if (!priv->tx_cbs) {
-		bcmgenet_fini_dma(priv);
+		__bcmgenet_fini_dma(priv);
 		return -ENOMEM;
 	}
 
@@ -1975,9 +2027,6 @@ static int bcmgenet_poll(struct napi_struct *napi, int budget)
 			struct bcmgenet_priv, napi);
 	unsigned int work_done;
 
-	/* tx reclaim */
-	bcmgenet_tx_reclaim(priv->dev, &priv->tx_rings[DESC_INDEX]);
-
 	work_done = bcmgenet_desc_rx(priv, budget);
 
 	/* Advancing our consumer index*/
@@ -2022,28 +2071,34 @@ static void bcmgenet_irq_task(struct work_struct *work)
 static irqreturn_t bcmgenet_isr1(int irq, void *dev_id)
 {
 	struct bcmgenet_priv *priv = dev_id;
+	struct bcmgenet_tx_ring *ring;
 	unsigned int index;
 
 	/* Save irq status for bottom-half processing. */
 	priv->irq1_stat =
 		bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_STAT) &
-		~priv->int1_mask;
+		~bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_MASK_STATUS);
 	/* clear interrupts */
 	bcmgenet_intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR);
 
 	netif_dbg(priv, intr, priv->dev,
 		  "%s: IRQ=0x%x\n", __func__, priv->irq1_stat);
+
 	/* Check the MBDONE interrupts.
 	 * packet is done, reclaim descriptors
 	 */
-	if (priv->irq1_stat & 0x0000ffff) {
-		index = 0;
-		for (index = 0; index < 16; index++) {
-			if (priv->irq1_stat & (1 << index))
-				bcmgenet_tx_reclaim(priv->dev,
-						    &priv->tx_rings[index]);
+	for (index = 0; index < priv->hw_params->tx_queues; index++) {
+		if (!(priv->irq1_stat & BIT(index)))
+			continue;
+
+		ring = &priv->tx_rings[index];
+
+		if (likely(napi_schedule_prep(&ring->napi))) {
+			ring->int_disable(priv, ring);
+			__napi_schedule(&ring->napi);
 		}
 	}
+
 	return IRQ_HANDLED;
 }
 
@@ -2075,8 +2130,12 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
 	}
 	if (priv->irq0_stat &
 			(UMAC_IRQ_TXDMA_BDONE | UMAC_IRQ_TXDMA_PDONE)) {
-		/* Tx reclaim */
-		bcmgenet_tx_reclaim(priv->dev, &priv->tx_rings[DESC_INDEX]);
+		struct bcmgenet_tx_ring *ring = &priv->tx_rings[DESC_INDEX];
+
+		if (likely(napi_schedule_prep(&ring->napi))) {
+			ring->int_disable(priv, ring);
+			__napi_schedule(&ring->napi);
+		}
 	}
 	if (priv->irq0_stat & (UMAC_IRQ_PHY_DET_R |
 				UMAC_IRQ_PHY_DET_F |
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index b36ddec0cc0a..0d370d168aee 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -520,6 +520,7 @@ struct bcmgenet_hw_params {
 
 struct bcmgenet_tx_ring {
 	spinlock_t	lock;		/* ring lock */
+	struct napi_struct napi;	/* NAPI per tx queue */
 	unsigned int	index;		/* ring index */
 	unsigned int	queue;		/* queue index */
 	struct enet_cb	*cbs;		/* tx ring buffer control block*/
@@ -534,6 +535,7 @@ struct bcmgenet_tx_ring {
 			   struct bcmgenet_tx_ring *);
 	void (*int_disable)(struct bcmgenet_priv *priv,
 			    struct bcmgenet_tx_ring *);
+	struct bcmgenet_priv *priv;
 };
 
 /* device context */
-- 
cgit v1.2.3


From a14c7d15ca91b444e77df08b916befdce77562ab Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Fri, 27 Feb 2015 17:16:26 +0100
Subject: sh_eth: Fix lost MAC address on kexec

Commit 740c7f31c094703c ("sh_eth: Ensure DMA engines are stopped before
freeing buffers") added a call to sh_eth_reset() to the
sh_eth_set_ringparam() and sh_eth_close() paths.

However, setting the software reset bit(s) in the EDMR register resets
the MAC Address Registers to zero. Hence after kexec, the new kernel
doesn't detect a valid MAC address and assigns a random MAC address,
breaking DHCP.

Set the MAC address again after the reset in sh_eth_dev_exit() to fix
this.

Tested on r8a7740/armadillo (GETHER) and r8a7791/koelsch (FAST_RCAR).

Fixes: 740c7f31c094703c ("sh_eth: Ensure DMA engines are stopped before freeing buffers")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 4da8bd263997..654b48d1e61a 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1392,6 +1392,9 @@ static void sh_eth_dev_exit(struct net_device *ndev)
 	msleep(2); /* max frame time at 10 Mbps < 1250 us */
 	sh_eth_get_stats(ndev);
 	sh_eth_reset(ndev);
+
+	/* Set MAC address again */
+	update_mac_address(ndev);
 }
 
 /* free Tx skb function */
-- 
cgit v1.2.3


From 2f5c54ce0d11a527de3544e1b2c904544a2c1dd7 Mon Sep 17 00:00:00 2001
From: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Date: Fri, 27 Feb 2015 13:19:44 +0200
Subject: net: davinci_mdio: add hibernation callbacks

Setting a dev_pm_ops suspend_late/resume_early pair but not a
set of hibernation functions means those pm functions will
not be called upon hibernation.
Fix this by using SET_LATE_SYSTEM_SLEEP_PM_OPS, which appropriately
assigns the suspend and hibernation handlers and move
davinci_mdio_x callbacks under CONFIG_PM_SLEEP to avoid build warnings.

Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/davinci_mdio.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 98655b44b97e..c00084d689f3 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -423,6 +423,7 @@ static int davinci_mdio_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int davinci_mdio_suspend(struct device *dev)
 {
 	struct davinci_mdio_data *data = dev_get_drvdata(dev);
@@ -464,10 +465,10 @@ static int davinci_mdio_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static const struct dev_pm_ops davinci_mdio_pm_ops = {
-	.suspend_late	= davinci_mdio_suspend,
-	.resume_early	= davinci_mdio_resume,
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(davinci_mdio_suspend, davinci_mdio_resume)
 };
 
 #if IS_ENABLED(CONFIG_OF)
-- 
cgit v1.2.3


From 8963a50453508a3f605dc2b29be35ee72d55335c Mon Sep 17 00:00:00 2001
From: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Date: Fri, 27 Feb 2015 13:19:45 +0200
Subject: net: ti: cpsw: add hibernation callbacks

Setting a dev_pm_ops suspend/resume pair but not a set of
hibernation functions means those pm functions will not be
called upon hibernation.
Fix this by using SIMPLE_DEV_PM_OPS, which appropriately
assigns the suspend and hibernation handlers and move
cpsw_suspend/resume calbacks under CONFIG_PM_SLEEP
to avoid build warnings.

Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 49b03368f4b9..a1bbaf6352ba 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2466,6 +2466,7 @@ static int cpsw_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int cpsw_suspend(struct device *dev)
 {
 	struct platform_device	*pdev = to_platform_device(dev);
@@ -2518,11 +2519,9 @@ static int cpsw_resume(struct device *dev)
 	}
 	return 0;
 }
+#endif
 
-static const struct dev_pm_ops cpsw_pm_ops = {
-	.suspend	= cpsw_suspend,
-	.resume		= cpsw_resume,
-};
+static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume);
 
 static const struct of_device_id cpsw_of_mtable[] = {
 	{ .compatible = "ti,cpsw", },
-- 
cgit v1.2.3


From 00c7eb99a5c4bd09a3f4133f61d3ebae787384c7 Mon Sep 17 00:00:00 2001
From: Yannick Guerrini <yguerrini@tomshardware.fr>
Date: Fri, 27 Feb 2015 18:12:16 +0100
Subject: qlcnic: Fix trivial typo in comment

Change 'Firmare' to 'Firmware'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index fa4317611fd6..f221126a5c4e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -314,7 +314,7 @@ struct qlcnic_fdt {
 #define QLCNIC_BRDCFG_START	0x4000		/* board config */
 #define QLCNIC_BOOTLD_START	0x10000		/* bootld */
 #define QLCNIC_IMAGE_START	0x43000		/* compressed image */
-#define QLCNIC_USER_START	0x3E8000	/* Firmare info */
+#define QLCNIC_USER_START	0x3E8000	/* Firmware info */
 
 #define QLCNIC_FW_VERSION_OFFSET	(QLCNIC_USER_START+0x408)
 #define QLCNIC_FW_SIZE_OFFSET		(QLCNIC_USER_START+0x40c)
-- 
cgit v1.2.3


From f7c306880590f04f9417f84361fa4146103d6de8 Mon Sep 17 00:00:00 2001
From: Yannick Guerrini <yguerrini@tomshardware.fr>
Date: Fri, 27 Feb 2015 18:38:46 +0100
Subject: netxen_nic: Fix trivial typos in comments

Change 'mutliple' to 'multiple'
Change 'Firmare' to 'Firmware'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/netxen/netxen_nic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
index 6e426ae94692..0a5e204a0179 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
@@ -354,7 +354,7 @@ struct cmd_desc_type0 {
 
 } __attribute__ ((aligned(64)));
 
-/* Note: sizeof(rcv_desc) should always be a mutliple of 2 */
+/* Note: sizeof(rcv_desc) should always be a multiple of 2 */
 struct rcv_desc {
 	__le16 reference_handle;
 	__le16 reserved;
@@ -499,7 +499,7 @@ struct uni_data_desc{
 #define NETXEN_IMAGE_START	0x43000	/* compressed image */
 #define NETXEN_SECONDARY_START	0x200000	/* backup images */
 #define NETXEN_PXE_START	0x3E0000	/* PXE boot rom */
-#define NETXEN_USER_START	0x3E8000	/* Firmare info */
+#define NETXEN_USER_START	0x3E8000	/* Firmware info */
 #define NETXEN_FIXED_START	0x3F0000	/* backup of crbinit */
 #define NETXEN_USER_START_OLD	NETXEN_PXE_START /* very old flash */
 
-- 
cgit v1.2.3


From b8b01344eb166740f4dc2f5397fd7fe7c814c16a Mon Sep 17 00:00:00 2001
From: Vaishali Thakkar <vthakkar1994@gmail.com>
Date: Fri, 27 Feb 2015 23:40:24 +0530
Subject: net: smc91c92_cs: Use setup_timer and mod_timer

Use timer API functions setup_timer and mod_timer instead
of structure assignments as they are standard way to set
the timer and to update the expire field of an active timer
respectively.

This is done using Coccinelle and semantic patch used for
this is as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);
// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91c92_cs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c
index 6b33127ab352..3449893aea8d 100644
--- a/drivers/net/ethernet/smsc/smc91c92_cs.c
+++ b/drivers/net/ethernet/smsc/smc91c92_cs.c
@@ -1070,11 +1070,8 @@ static int smc_open(struct net_device *dev)
     smc->packets_waiting = 0;
 
     smc_reset(dev);
-    init_timer(&smc->media);
-    smc->media.function = media_check;
-    smc->media.data = (u_long) dev;
-    smc->media.expires = jiffies + HZ;
-    add_timer(&smc->media);
+    setup_timer(&smc->media, media_check, (u_long)dev);
+    mod_timer(&smc->media, jiffies + HZ);
 
     return 0;
 } /* smc_open */
-- 
cgit v1.2.3


From fc4ba63627948bb395cb54f846470d22eda38ac2 Mon Sep 17 00:00:00 2001
From: Vaishali Thakkar <vthakkar1994@gmail.com>
Date: Fri, 27 Feb 2015 23:53:03 +0530
Subject: net: 8390: pcnet_cs: Use setup_timer and mod_timer

Use timer API functions setup_timer and mod_timer instead
of structure assignments as they are standard way to set
the timer and to update the expire field of an active timer
respectively.

This is done using Coccinelle and semantic patch used for
this is as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);
// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/8390/pcnet_cs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/8390/pcnet_cs.c b/drivers/net/ethernet/8390/pcnet_cs.c
index 9fb7b9d4fd6c..2777289a26c0 100644
--- a/drivers/net/ethernet/8390/pcnet_cs.c
+++ b/drivers/net/ethernet/8390/pcnet_cs.c
@@ -918,11 +918,8 @@ static int pcnet_open(struct net_device *dev)
 
     info->phy_id = info->eth_phy;
     info->link_status = 0x00;
-    init_timer(&info->watchdog);
-    info->watchdog.function = ei_watchdog;
-    info->watchdog.data = (u_long)dev;
-    info->watchdog.expires = jiffies + HZ;
-    add_timer(&info->watchdog);
+    setup_timer(&info->watchdog, ei_watchdog, (u_long)dev);
+    mod_timer(&info->watchdog, jiffies + HZ);
 
     return ei_open(dev);
 } /* pcnet_open */
-- 
cgit v1.2.3


From 6753a971bef3d91f25571a5da24abbfd76459114 Mon Sep 17 00:00:00 2001
From: Vaishali Thakkar <vthakkar1994@gmail.com>
Date: Sat, 28 Feb 2015 00:02:34 +0530
Subject: net: 8390: axnet_cs: Use setup_timer and mod_timer

Use timer API functions setup_timer and mod_timer instead
of structure assignments as they are standard way to set
the timer and to update the expire field of an active timer
respectively.

This is done using Coccinelle and semantic patch used for
this is as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);
// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/8390/axnet_cs.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c
index 7769c05543f1..ec6eac1f8c95 100644
--- a/drivers/net/ethernet/8390/axnet_cs.c
+++ b/drivers/net/ethernet/8390/axnet_cs.c
@@ -484,11 +484,8 @@ static int axnet_open(struct net_device *dev)
     link->open++;
 
     info->link_status = 0x00;
-    init_timer(&info->watchdog);
-    info->watchdog.function = ei_watchdog;
-    info->watchdog.data = (u_long)dev;
-    info->watchdog.expires = jiffies + HZ;
-    add_timer(&info->watchdog);
+    setup_timer(&info->watchdog, ei_watchdog, (u_long)dev);
+    mod_timer(&info->watchdog, jiffies + HZ);
 
     return ax_open(dev);
 } /* axnet_open */
-- 
cgit v1.2.3


From ccb36da19b36a77dce926efeb76de0ab57c00ad5 Mon Sep 17 00:00:00 2001
From: Vaishali Thakkar <vthakkar1994@gmail.com>
Date: Sat, 28 Feb 2015 00:12:34 +0530
Subject: net: stmmac: Use setup_timer and mod_timer

Use timer API functions setup_timer and mod_timer instead
of structure assignments as they are standard way to set
the timer and to update the expire field of an active timer
respectively.

This is done using Coccinelle and semantic patch used for
this is as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);
// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 55e89b3838f1..a0ea84fe6519 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -310,11 +310,11 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
 		spin_lock_irqsave(&priv->lock, flags);
 		if (!priv->eee_active) {
 			priv->eee_active = 1;
-			init_timer(&priv->eee_ctrl_timer);
-			priv->eee_ctrl_timer.function = stmmac_eee_ctrl_timer;
-			priv->eee_ctrl_timer.data = (unsigned long)priv;
-			priv->eee_ctrl_timer.expires = STMMAC_LPI_T(eee_timer);
-			add_timer(&priv->eee_ctrl_timer);
+			setup_timer(&priv->eee_ctrl_timer,
+				    stmmac_eee_ctrl_timer,
+				    (unsigned long)priv);
+			mod_timer(&priv->eee_ctrl_timer,
+				  STMMAC_LPI_T(eee_timer));
 
 			priv->hw->mac->set_eee_timer(priv->hw,
 						     STMMAC_DEFAULT_LIT_LS,
-- 
cgit v1.2.3


From 187d67858bafd16334d150b0fa7cff1f5814c6fb Mon Sep 17 00:00:00 2001
From: Vaishali Thakkar <vthakkar1994@gmail.com>
Date: Sat, 28 Feb 2015 00:20:59 +0530
Subject: net: pasemi: Use setup_timer and mod_timer

Use timer API functions setup_timer and mod_timer instead
of structure assignments as they are standard way to set
the timer and to update the expire field of an active timer
respectively.

This is done using Coccinelle and semantic patch used for
this is as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);
// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/pasemi/pasemi_mac.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index 44e8d7d25547..57a6e6cd74fc 100644
--- a/drivers/net/ethernet/pasemi/pasemi_mac.c
+++ b/drivers/net/ethernet/pasemi/pasemi_mac.c
@@ -1239,11 +1239,9 @@ static int pasemi_mac_open(struct net_device *dev)
 	if (mac->phydev)
 		phy_start(mac->phydev);
 
-	init_timer(&mac->tx->clean_timer);
-	mac->tx->clean_timer.function = pasemi_mac_tx_timer;
-	mac->tx->clean_timer.data = (unsigned long)mac->tx;
-	mac->tx->clean_timer.expires = jiffies+HZ;
-	add_timer(&mac->tx->clean_timer);
+	setup_timer(&mac->tx->clean_timer, pasemi_mac_tx_timer,
+		    (unsigned long)mac->tx);
+	mod_timer(&mac->tx->clean_timer, jiffies + HZ);
 
 	return 0;
 
-- 
cgit v1.2.3


From f62ba9c14b85a682b64a4c421f91de0bd2aa8538 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sat, 28 Feb 2015 18:09:16 -0800
Subject: net: bcmgenet: fix software maintained statistics

Commit 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma
failures") added a few software maintained statistics using
BCMGENET_STAT_MIB_RX and BCMGENET_STAT_MIB_TX. These statistics are read from
the hardware MIB counters, such that bcmgenet_update_mib_counters() was trying
to read from a non-existing MIB offset for these counters.

Fix this by introducing a special type: BCMGENET_STAT_SOFT, similar to
BCMGENET_STAT_NETDEV, such that bcmgenet_get_ethtool_stats will read from the
software mib.

Fixes: 44c8bc3ce39f ("net: bcmgenet: log RX buffer allocation and RX/TX dma failures")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 2874a004f815..6befde61c203 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -487,6 +487,7 @@ enum bcmgenet_stat_type {
 	BCMGENET_STAT_MIB_TX,
 	BCMGENET_STAT_RUNT,
 	BCMGENET_STAT_MISC,
+	BCMGENET_STAT_SOFT,
 };
 
 struct bcmgenet_stats {
@@ -515,6 +516,7 @@ struct bcmgenet_stats {
 #define STAT_GENET_MIB_RX(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_MIB_RX)
 #define STAT_GENET_MIB_TX(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_MIB_TX)
 #define STAT_GENET_RUNT(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_RUNT)
+#define STAT_GENET_SOFT_MIB(str, m) STAT_GENET_MIB(str, m, BCMGENET_STAT_SOFT)
 
 #define STAT_GENET_MISC(str, m, offset) { \
 	.stat_string = str, \
@@ -614,9 +616,9 @@ static const struct bcmgenet_stats bcmgenet_gstrings_stats[] = {
 			UMAC_RBUF_OVFL_CNT),
 	STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt, UMAC_RBUF_ERR_CNT),
 	STAT_GENET_MISC("mdf_err_cnt", mib.mdf_err_cnt, UMAC_MDF_ERR_CNT),
-	STAT_GENET_MIB_RX("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
-	STAT_GENET_MIB_RX("rx_dma_failed", mib.rx_dma_failed),
-	STAT_GENET_MIB_TX("tx_dma_failed", mib.tx_dma_failed),
+	STAT_GENET_SOFT_MIB("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
+	STAT_GENET_SOFT_MIB("rx_dma_failed", mib.rx_dma_failed),
+	STAT_GENET_SOFT_MIB("tx_dma_failed", mib.tx_dma_failed),
 };
 
 #define BCMGENET_STATS_LEN	ARRAY_SIZE(bcmgenet_gstrings_stats)
@@ -668,6 +670,7 @@ static void bcmgenet_update_mib_counters(struct bcmgenet_priv *priv)
 		s = &bcmgenet_gstrings_stats[i];
 		switch (s->type) {
 		case BCMGENET_STAT_NETDEV:
+		case BCMGENET_STAT_SOFT:
 			continue;
 		case BCMGENET_STAT_MIB_RX:
 		case BCMGENET_STAT_MIB_TX:
-- 
cgit v1.2.3


From 55ff4ea9a853f5ec9a8290c0ccc1d00c97e49f82 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Sat, 28 Feb 2015 18:09:17 -0800
Subject: net: systemport: fix software maintained statistics

Commit 60b4ea1781fd ("net: systemport: log RX buffer allocation and RX/TX DMA
failures") added a few software maintained statistics using
BCM_SYSPORT_STAT_MIB_RX and BCM_SYSPORT_STAT_MIB_TX. These statistics are read
from the hardware MIB counters, such that bcm_sysport_update_mib_counters() was
trying to read from a non-existing MIB offset for these counters.

Fix this by introducing a special type: BCM_SYSPORT_STAT_SOFT, similar to
BCM_SYSPORT_STAT_NETDEV, such that bcm_sysport_get_ethtool_stats will read from
the software mib.

Fixes: 60b4ea1781fd ("net: systemport: log RX buffer allocation and RX/TX DMA failures")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bcmsysport.c | 7 ++++---
 drivers/net/ethernet/broadcom/bcmsysport.h | 2 ++
 2 files changed, 6 insertions(+), 3 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 5b308a4a4d0e..783543ad1fcf 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -274,9 +274,9 @@ static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = {
 	/* RBUF misc statistics */
 	STAT_RBUF("rbuf_ovflow_cnt", mib.rbuf_ovflow_cnt, RBUF_OVFL_DISC_CNTR),
 	STAT_RBUF("rbuf_err_cnt", mib.rbuf_err_cnt, RBUF_ERR_PKT_CNTR),
-	STAT_MIB_RX("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
-	STAT_MIB_RX("rx_dma_failed", mib.rx_dma_failed),
-	STAT_MIB_TX("tx_dma_failed", mib.tx_dma_failed),
+	STAT_MIB_SOFT("alloc_rx_buff_failed", mib.alloc_rx_buff_failed),
+	STAT_MIB_SOFT("rx_dma_failed", mib.rx_dma_failed),
+	STAT_MIB_SOFT("tx_dma_failed", mib.tx_dma_failed),
 };
 
 #define BCM_SYSPORT_STATS_LEN	ARRAY_SIZE(bcm_sysport_gstrings_stats)
@@ -345,6 +345,7 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv)
 		s = &bcm_sysport_gstrings_stats[i];
 		switch (s->type) {
 		case BCM_SYSPORT_STAT_NETDEV:
+		case BCM_SYSPORT_STAT_SOFT:
 			continue;
 		case BCM_SYSPORT_STAT_MIB_RX:
 		case BCM_SYSPORT_STAT_MIB_TX:
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h
index fc19417d82a5..7e3d87a88c76 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.h
+++ b/drivers/net/ethernet/broadcom/bcmsysport.h
@@ -570,6 +570,7 @@ enum bcm_sysport_stat_type {
 	BCM_SYSPORT_STAT_RUNT,
 	BCM_SYSPORT_STAT_RXCHK,
 	BCM_SYSPORT_STAT_RBUF,
+	BCM_SYSPORT_STAT_SOFT,
 };
 
 /* Macros to help define ethtool statistics */
@@ -590,6 +591,7 @@ enum bcm_sysport_stat_type {
 #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX)
 #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX)
 #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT)
+#define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT)
 
 #define STAT_RXCHK(str, m, ofs) { \
 	.stat_string = str, \
-- 
cgit v1.2.3


From f5956fafb00afab474c3886b6297f9b5e7aff722 Mon Sep 17 00:00:00 2001
From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Mon, 2 Mar 2015 18:22:15 +0200
Subject: net/mlx4_core: Fix wrong mask and error flow for the update-qp
 command

The bit mask for currently supported driver features (MLX4_UPDATE_QP_SUPPORTED_ATTRS)
of the update-qp command was defined twice (using enum value and pre-processor
define directive) and wrong.

The return value of the call to mlx4_update_qp() from within the SRIOV
resource-tracker was wrongly voided down.

Fix both issues.

issue: none
Fixes: 09e05c3f78e9 ('net/mlx4: Set vlan stripping policy by the right command')
Fixes: ce8d9e0d6746 ('net/mlx4_core: Add UPDATE_QP SRIOV wrapper support')
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/qp.c               | 1 -
 drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 9 ++++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index 2bb8553bd905..eda29dbbfcd2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -412,7 +412,6 @@ err_icm:
 
 EXPORT_SYMBOL_GPL(mlx4_qp_alloc);
 
-#define MLX4_UPDATE_QP_SUPPORTED_ATTRS MLX4_UPDATE_QP_SMAC
 int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
 		   enum mlx4_update_qp_attr attr,
 		   struct mlx4_update_qp_params *params)
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 486e3d26cd4a..d97ca88c55b5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -713,7 +713,7 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 	struct mlx4_vport_oper_state *vp_oper;
 	struct mlx4_priv *priv;
 	u32 qp_type;
-	int port;
+	int port, err = 0;
 
 	port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1;
 	priv = mlx4_priv(dev);
@@ -738,7 +738,9 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 			} else {
 				struct mlx4_update_qp_params params = {.flags = 0};
 
-				mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, &params);
+				err = mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, &params);
+				if (err)
+					goto out;
 			}
 		}
 
@@ -773,7 +775,8 @@ static int update_vport_qp_param(struct mlx4_dev *dev,
 		qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC;
 		qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx;
 	}
-	return 0;
+out:
+	return err;
 }
 
 static int mpt_mask(struct mlx4_dev *dev)
-- 
cgit v1.2.3


From 1037ebbbd262227a91dfdd558159e345d4edf6b7 Mon Sep 17 00:00:00 2001
From: Ido Shamay <idos@mellanox.com>
Date: Mon, 2 Mar 2015 18:22:16 +0200
Subject: net/mlx4_en: Disbale GRO for incoming loopback/selftest packets

Packets which are sent from the selftest (ethtool) flow,
should not be passed to GRO stack but rather dropped by
the driver after validation. To achieve that, we disable
GRO for the duration of the selftest.

Fixes: dd65beac48a5 ("net/mlx4_en: Extend usage of napi_gro_frags")
Reported-by: Carol Soto <clsoto@linux.vnet.ibm.com>
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_selftest.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
index 2d8ee66138e8..a61009f4b2df 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
@@ -81,12 +81,14 @@ static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
 {
 	u32 loopback_ok = 0;
 	int i;
-
+	bool gro_enabled;
 
         priv->loopback_ok = 0;
 	priv->validate_loopback = 1;
+	gro_enabled = priv->dev->features & NETIF_F_GRO;
 
 	mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
+	priv->dev->features &= ~NETIF_F_GRO;
 
 	/* xmit */
 	if (mlx4_en_test_loopback_xmit(priv)) {
@@ -108,6 +110,10 @@ static int mlx4_en_test_loopback(struct mlx4_en_priv *priv)
 mlx4_en_test_loopback_exit:
 
 	priv->validate_loopback = 0;
+
+	if (gro_enabled)
+		priv->dev->features |= NETIF_F_GRO;
+
 	mlx4_en_update_loopback_state(priv->dev, priv->dev->features);
 	return !loopback_ok;
 }
-- 
cgit v1.2.3


From 7d7355f58ba4f9d68d2fb79864bab4ccb618e4e1 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
Date: Tue, 3 Mar 2015 00:52:00 +0000
Subject: sh_eth: Ensure proper ordering of descriptor active bit write/read

When submitting a DMA descriptor, the active bit must be written last.
When reading a completed DMA descriptor, the active bit must be read
first.

Add memory barriers to ensure that this ordering is maintained.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 654b48d1e61a..5c212a833bcf 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1410,6 +1410,8 @@ static int sh_eth_txfree(struct net_device *ndev)
 		txdesc = &mdp->tx_ring[entry];
 		if (txdesc->status & cpu_to_edmac(mdp, TD_TACT))
 			break;
+		/* TACT bit must be checked before all the following reads */
+		rmb();
 		/* Free the original skb. */
 		if (mdp->tx_skbuff[entry]) {
 			dma_unmap_single(&ndev->dev, txdesc->addr,
@@ -1447,6 +1449,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 	limit = boguscnt;
 	rxdesc = &mdp->rx_ring[entry];
 	while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) {
+		/* RACT bit must be checked before all the following reads */
+		rmb();
 		desc_status = edmac_to_cpu(mdp, rxdesc->status);
 		pkt_len = rxdesc->frame_length;
 
@@ -1526,6 +1530,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 			skb_checksum_none_assert(skb);
 			rxdesc->addr = dma_addr;
 		}
+		wmb(); /* RACT bit must be set after all the above writes */
 		if (entry >= mdp->num_rx_ring - 1)
 			rxdesc->status |=
 				cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL);
@@ -2195,6 +2200,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	}
 	txdesc->buffer_length = skb->len;
 
+	wmb(); /* TACT bit must be set after all the above writes */
 	if (entry >= mdp->num_tx_ring - 1)
 		txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE);
 	else
-- 
cgit v1.2.3


From 6ded286555c2518be2f2d438f83dfaba3f0100fd Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
Date: Tue, 3 Mar 2015 00:52:08 +0000
Subject: sh_eth: Fix RX recovery on R-Car in case of RX ring underrun

In case of RX ring underrun (RDE), we attempt to reset the software
descriptor pointers (dirty_rx and cur_rx) to match where the hardware
will read the next descriptor from, as that might not be the first
dirty descriptor.  This relies on reading RDFAR, but that register
doesn't exist on all supported chips - specifically, not on the R-Car
chips.  This will result in unpredictable behaviour on those chips
after an RDE.

Make this pointer reset conditional and assume that it isn't needed on
the R-Car chips.  This fix also assumes that RDFAR is never exposed at
offset 0 in the memory map - this is currently true, and a subsequent
commit will fix the ambiguity between offset 0 and no-offset in the
register offset maps.

Fixes: 79fba9f51755 ("net: sh_eth: fix the rxdesc pointer when rx ...")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5c212a833bcf..3309494d12ad 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1543,7 +1543,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 	/* If we don't need to check status, don't. -KDU */
 	if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) {
 		/* fix the values for the next receiving if RDE is set */
-		if (intr_status & EESR_RDE) {
+		if (intr_status & EESR_RDE && mdp->reg_offset[RDFAR] != 0) {
 			u32 count = (sh_eth_read(ndev, RDFAR) -
 				     sh_eth_read(ndev, RDLAR)) >> 4;
 
-- 
cgit v1.2.3


From 9b4a6364a6b3176511956ad186f8dffbe2e60c3e Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
Date: Tue, 3 Mar 2015 00:52:39 +0000
Subject: Revert "sh_eth: Enable Rx descriptor word 0 shift for r8a7790"

This reverts commit fd9af07c3404ac9ecbd0d859563360f51ce1ffde.

The hardware manual states that the frame error and multicast bits are
copied to bits 9:0 of RD0, not bits 25:16.  I've tested that this is
true for RFS1 (CRC error), RFS3 (frame too short), RFS4 (frame too
long) and RFS8 (multicast).

Also adjust a comment to agree with this.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 3309494d12ad..3406cda57a45 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -508,7 +508,6 @@ static struct sh_eth_cpu_data r8a779x_data = {
 	.tpauser	= 1,
 	.hw_swap	= 1,
 	.rmiimode	= 1,
-	.shift_rd0	= 1,
 };
 
 static void sh_eth_set_rate_sh7724(struct net_device *ndev)
@@ -1462,8 +1461,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
 
 		/* In case of almost all GETHER/ETHERs, the Receive Frame State
 		 * (RFS) bits in the Receive Descriptor 0 are from bit 9 to
-		 * bit 0. However, in case of the R8A7740, R8A779x, and
-		 * R7S72100 the RFS bits are from bit 25 to bit 16. So, the
+		 * bit 0. However, in case of the R8A7740 and R7S72100
+		 * the RFS bits are from bit 25 to bit 16. So, the
 		 * driver needs right shifting by 16.
 		 */
 		if (mdp->cd->shift_rd0)
-- 
cgit v1.2.3


From dacc73e0cf930e87e2e6a94d29156f1d5776b18f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
Date: Tue, 3 Mar 2015 00:53:08 +0000
Subject: sh_eth: Really fix padding of short frames on TX
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

My previous fix to clear padding of short frames used skb->len as the
DMA length, assuming that skb_padto() extended skb->len to include the
padding.  That isn't the case; we need to use skb_put_padto() instead.

(This wasn't immediately obvious because software padding isn't
actually needed on the R-Car H2.  We could make it conditional on
which chip is being driven, but it's probably not worth the effort.)

Reported-by: "Violeta Menéndez González" <violeta.menendez@codethink.co.uk>
Fixes: 612a17a54b50 ("sh_eth: Fix padding of short frames on TX")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 3406cda57a45..736d5d1624a1 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2181,7 +2181,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	}
 	spin_unlock_irqrestore(&mdp->lock, flags);
 
-	if (skb_padto(skb, ETH_ZLEN))
+	if (skb_put_padto(skb, ETH_ZLEN))
 		return NETDEV_TX_OK;
 
 	entry = mdp->cur_tx % mdp->num_tx_ring;
-- 
cgit v1.2.3


From c77c761fa40e0ebdacb728b0310191ef8dc6902b Mon Sep 17 00:00:00 2001
From: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Date: Mon, 2 Mar 2015 11:56:12 -0600
Subject: ibmveth: Add function to enable live MAC address changes

Add a function that will enable changing the MAC address
of an ibmveth interface while it is still running.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ibm/ibmveth.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 21978cc019e7..072426a72745 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1327,6 +1327,28 @@ static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev)
 	return ret;
 }
 
+static int ibmveth_set_mac_addr(struct net_device *dev, void *p)
+{
+	struct ibmveth_adapter *adapter = netdev_priv(dev);
+	struct sockaddr *addr = p;
+	u64 mac_address;
+	int rc;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	mac_address = ibmveth_encode_mac_addr(addr->sa_data);
+	rc = h_change_logical_lan_mac(adapter->vdev->unit_address, mac_address);
+	if (rc) {
+		netdev_err(adapter->netdev, "h_change_logical_lan_mac failed with rc=%d\n", rc);
+		return rc;
+	}
+
+	ether_addr_copy(dev->dev_addr, addr->sa_data);
+
+	return 0;
+}
+
 static const struct net_device_ops ibmveth_netdev_ops = {
 	.ndo_open		= ibmveth_open,
 	.ndo_stop		= ibmveth_close,
@@ -1337,7 +1359,7 @@ static const struct net_device_ops ibmveth_netdev_ops = {
 	.ndo_fix_features	= ibmveth_fix_features,
 	.ndo_set_features	= ibmveth_set_features,
 	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_set_mac_address    = ibmveth_set_mac_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= ibmveth_poll_controller,
 #endif
-- 
cgit v1.2.3


From 0ae93b2cccbcc060899800a6bac7905a7d754448 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 2 Mar 2015 12:03:27 -0800
Subject: gianfar: Reduce logging noise seen due to phy polling if link is down

Commit 6ce29b0e2a04 ("gianfar: Avoid unnecessary reg accesses in adjust_link()")
eliminates unnecessary calls to adjust_link for phy devices which don't support
interrupts and need polling. As part of that work, the 'new_state' local flag,
which was used to reduce logging noise on the console, was eliminated.

Unfortunately, that means that a 'Link is Down' log message will now be
issued continuously if a link is configured as UP, the link state is down,
and the associated phy requires polling. This occurs because priv->oldduplex
is -1 in this case, which always differs from phydev->duplex. In addition,
phydev->speed may also differ from priv->oldspeed.  gfar_update_link_state()
is therefore called each time a phy is polled, even if the link state did not
change.

Cc: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/freescale/gianfar.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net')

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 43df78882e48..178e54028d10 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -3162,8 +3162,8 @@ static void adjust_link(struct net_device *dev)
 	struct phy_device *phydev = priv->phydev;
 
 	if (unlikely(phydev->link != priv->oldlink ||
-		     phydev->duplex != priv->oldduplex ||
-		     phydev->speed != priv->oldspeed))
+		     (phydev->link && (phydev->duplex != priv->oldduplex ||
+				       phydev->speed != priv->oldspeed))))
 		gfar_update_link_state(priv);
 }
 
-- 
cgit v1.2.3