kernel: backport bgmac changes from net-next

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

9 files changed, 329 insertions, 11 deletions

diff --git a/target/linux/generic/patches-4.4/070-0001-bgmac-fix-a-missing-check-for-build_skb.patch b/target/linux/generic/patches-4.4/070-0001-bgmac-fix-a-missing-check-for-build_skb.patch
new file mode 100644
index 0000000000..7e6dc2035d
--- /dev/null
+++ b/target/linux/generic/patches-4.4/070-0001-bgmac-fix-a-missing-check-for-build_skb.patch
@@ -0,0 +1,28 @@
+From f1640c3ddeec12804bc9a21feee85fc15aca95f6 Mon Sep 17 00:00:00 2001
+From: wangweidong <wangweidong1@huawei.com>
+Date: Wed, 13 Jan 2016 11:06:41 +0800
+Subject: [PATCH] bgmac: fix a missing check for build_skb
+
+when build_skb failed, it may occure a NULL pointer.
+So add a 'NULL check' for it.
+
+Signed-off-by: Weidong Wang <wangweidong1@huawei.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -466,6 +466,11 @@ static int bgmac_dma_rx_read(struct bgma
+ 			len -= ETH_FCS_LEN;
+ 
+ 			skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
++			if (unlikely(skb)) {
++				bgmac_err(bgmac, "build_skb failed\n");
++				put_page(virt_to_head_page(buf));
++				break;
++			}
+ 			skb_put(skb, BGMAC_RX_FRAME_OFFSET +
+ 				BGMAC_RX_BUF_OFFSET + len);
+ 			skb_pull(skb, BGMAC_RX_FRAME_OFFSET +
diff --git a/target/linux/generic/patches-4.4/070-0002-bgmac-Fix-reversed-test-of-build_skb-return-value.patch b/target/linux/generic/patches-4.4/070-0002-bgmac-Fix-reversed-test-of-build_skb-return-value.patch
new file mode 100644
index 0000000000..0b0a28d81a
--- /dev/null
+++ b/target/linux/generic/patches-4.4/070-0002-bgmac-Fix-reversed-test-of-build_skb-return-value.patch
@@ -0,0 +1,22 @@
+From 750afbf8ee9c6a1c74a1fe5fc9852146b1d72687 Mon Sep 17 00:00:00 2001
+From: "David S. Miller" <davem@davemloft.net>
+Date: Fri, 15 Jan 2016 16:07:13 -0500
+Subject: [PATCH] bgmac: Fix reversed test of build_skb() return value.
+
+Fixes: f1640c3ddeec ("bgmac: fix a missing check for build_skb")
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -466,7 +466,7 @@ static int bgmac_dma_rx_read(struct bgma
+ 			len -= ETH_FCS_LEN;
+ 
+ 			skb = build_skb(buf, BGMAC_RX_ALLOC_SIZE);
+-			if (unlikely(skb)) {
++			if (unlikely(!skb)) {
+ 				bgmac_err(bgmac, "build_skb failed\n");
+ 				put_page(virt_to_head_page(buf));
+ 				break;
diff --git a/target/linux/generic/patches-4.4/071-0001-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch b/target/linux/generic/patches-4.4/071-0001-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch
index 63010c1450..4008c29963 100644
--- a/target/linux/generic/patches-4.4/071-0001-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch
+++ b/target/linux/generic/patches-4.4/071-0001-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch
@@ -36,7 +36,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  static bool bgmac_wait_value(struct bcma_device *core, u16 reg, u32 mask,
  			     u32 value, int timeout)
  {
-@@ -982,11 +993,9 @@ static void bgmac_mac_speed(struct bgmac
+@@ -987,11 +998,9 @@ static void bgmac_mac_speed(struct bgmac
  static void bgmac_miiconfig(struct bgmac *bgmac)
  {
  	struct bcma_device *core = bgmac->core;
@@ -49,7 +49,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  		bcma_awrite32(core, BCMA_IOCTL,
  			      bcma_aread32(core, BCMA_IOCTL) | 0x40 |
  			      BGMAC_BCMA_IOCTL_SW_CLKEN);
-@@ -1050,9 +1059,7 @@ static void bgmac_chip_reset(struct bgma
+@@ -1055,9 +1064,7 @@ static void bgmac_chip_reset(struct bgma
  	}
  
  	/* Request Misc PLL for corerev > 2 */
@@ -60,7 +60,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  		bgmac_set(bgmac, BCMA_CLKCTLST,
  			  BGMAC_BCMA_CLKCTLST_MISC_PLL_REQ);
  		bgmac_wait_value(bgmac->core, BCMA_CLKCTLST,
-@@ -1188,8 +1195,7 @@ static void bgmac_enable(struct bgmac *b
+@@ -1193,8 +1200,7 @@ static void bgmac_enable(struct bgmac *b
  		break;
  	}
  
@@ -70,7 +70,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  		rxq_ctl = bgmac_read(bgmac, BGMAC_RXQ_CTL);
  		rxq_ctl &= ~BGMAC_RXQ_CTL_MDP_MASK;
  		bp_clk = bcma_pmu_get_bus_clock(&bgmac->core->bus->drv_cc) /
-@@ -1467,14 +1473,12 @@ static int bgmac_fixed_phy_register(stru
+@@ -1472,14 +1478,12 @@ static int bgmac_fixed_phy_register(stru
  
  static int bgmac_mii_register(struct bgmac *bgmac)
  {
@@ -86,7 +86,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  		return bgmac_fixed_phy_register(bgmac);
  
  	mii_bus = mdiobus_alloc();
-@@ -1545,7 +1549,6 @@ static void bgmac_mii_unregister(struct
+@@ -1550,7 +1554,6 @@ static void bgmac_mii_unregister(struct
  /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
  static int bgmac_probe(struct bcma_device *core)
  {
@@ -94,7 +94,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  	struct net_device *net_dev;
  	struct bgmac *bgmac;
  	struct ssb_sprom *sprom = &core->bus->sprom;
-@@ -1626,8 +1629,7 @@ static int bgmac_probe(struct bcma_devic
+@@ -1631,8 +1634,7 @@ static int bgmac_probe(struct bcma_devic
  	bgmac_chip_reset(bgmac);
  
  	/* For Northstar, we have to take all GMAC core out of reset */
diff --git a/target/linux/generic/patches-4.4/071-0002-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch b/target/linux/generic/patches-4.4/071-0002-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch
index 88db7b2fff..514fe26f1b 100644
--- a/target/linux/generic/patches-4.4/071-0002-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch
+++ b/target/linux/generic/patches-4.4/071-0002-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch
@@ -25,7 +25,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  	case BCMA_CHIP_ID_BCM53018:
  		return true;
  	default:
-@@ -1047,8 +1048,9 @@ static void bgmac_chip_reset(struct bgma
+@@ -1052,8 +1053,9 @@ static void bgmac_chip_reset(struct bgma
  	    (ci->id == BCMA_CHIP_ID_BCM53572 && ci->pkg == BCMA_PKG_ID_BCM47188))
  		iost &= ~BGMAC_BCMA_IOST_ATTACHED;
  
diff --git a/target/linux/generic/patches-4.4/071-0003-bgmac-reset-enable-Ethernet-core-before-using-it.patch b/target/linux/generic/patches-4.4/071-0003-bgmac-reset-enable-Ethernet-core-before-using-it.patch
index 1306072c84..4375868b16 100644
--- a/target/linux/generic/patches-4.4/071-0003-bgmac-reset-enable-Ethernet-core-before-using-it.patch
+++ b/target/linux/generic/patches-4.4/071-0003-bgmac-reset-enable-Ethernet-core-before-using-it.patch
@@ -17,7 +17,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
 
 --- a/drivers/net/ethernet/broadcom/bgmac.c
 +++ b/drivers/net/ethernet/broadcom/bgmac.c
-@@ -1578,6 +1578,11 @@ static int bgmac_probe(struct bcma_devic
+@@ -1583,6 +1583,11 @@ static int bgmac_probe(struct bcma_devic
  		dev_warn(&core->dev, "Using random MAC: %pM\n", mac);
  	}
  
diff --git a/target/linux/generic/patches-4.4/072-0001-bgmac-Bind-net_device-with-backing-device-structure.patch b/target/linux/generic/patches-4.4/072-0001-bgmac-Bind-net_device-with-backing-device-structure.patch
new file mode 100644
index 0000000000..764b16801d
--- /dev/null
+++ b/target/linux/generic/patches-4.4/072-0001-bgmac-Bind-net_device-with-backing-device-structure.patch
@@ -0,0 +1,25 @@
+From 2022e9d50798aa592887ccb5a7d045e537f3855f Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <f.fainelli@gmail.com>
+Date: Tue, 7 Jun 2016 15:06:13 -0700
+Subject: [PATCH 1/3] bgmac: Bind net_device with backing device structure
+
+In preparation for allowing different helpers to be utilized against
+network devices created by the bgmac driver, make sure that we bind the
+net_device with core->dev.
+
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -1599,6 +1599,7 @@ static int bgmac_probe(struct bcma_devic
+ 	bgmac->net_dev = net_dev;
+ 	bgmac->core = core;
+ 	bcma_set_drvdata(core, bgmac);
++	SET_NETDEV_DEV(net_dev, &core->dev);
+ 
+ 	/* Defaults */
+ 	memcpy(bgmac->net_dev->dev_addr, mac, ETH_ALEN);
diff --git a/target/linux/generic/patches-4.4/072-0002-bgmac-Add-support-for-ethtool-statistics.patch b/target/linux/generic/patches-4.4/072-0002-bgmac-Add-support-for-ethtool-statistics.patch
new file mode 100644
index 0000000000..8f6b6c80fc
--- /dev/null
+++ b/target/linux/generic/patches-4.4/072-0002-bgmac-Add-support-for-ethtool-statistics.patch
@@ -0,0 +1,175 @@
+From f6613d4fa937fa8388f2c1cb4e69ccc25e9e2336 Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <f.fainelli@gmail.com>
+Date: Tue, 7 Jun 2016 15:06:14 -0700
+Subject: [PATCH 2/3] bgmac: Add support for ethtool statistics
+
+Read the statistics from the BGMAC's builtin MAC and return them to
+user-space using the standard ethtool helpers.
+
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 124 ++++++++++++++++++++++++++++++++++
+ drivers/net/ethernet/broadcom/bgmac.h |   4 +-
+ 2 files changed, 126 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -1382,6 +1382,127 @@ static const struct net_device_ops bgmac
+  * ethtool_ops
+  **************************************************/
+ 
++struct bgmac_stat {
++	u8 size;
++	u32 offset;
++	const char *name;
++};
++
++static struct bgmac_stat bgmac_get_strings_stats[] = {
++	{ 8, BGMAC_TX_GOOD_OCTETS, "tx_good_octets" },
++	{ 4, BGMAC_TX_GOOD_PKTS, "tx_good" },
++	{ 8, BGMAC_TX_OCTETS, "tx_octets" },
++	{ 4, BGMAC_TX_PKTS, "tx_pkts" },
++	{ 4, BGMAC_TX_BROADCAST_PKTS, "tx_broadcast" },
++	{ 4, BGMAC_TX_MULTICAST_PKTS, "tx_multicast" },
++	{ 4, BGMAC_TX_LEN_64, "tx_64" },
++	{ 4, BGMAC_TX_LEN_65_TO_127, "tx_65_127" },
++	{ 4, BGMAC_TX_LEN_128_TO_255, "tx_128_255" },
++	{ 4, BGMAC_TX_LEN_256_TO_511, "tx_256_511" },
++	{ 4, BGMAC_TX_LEN_512_TO_1023, "tx_512_1023" },
++	{ 4, BGMAC_TX_LEN_1024_TO_1522, "tx_1024_1522" },
++	{ 4, BGMAC_TX_LEN_1523_TO_2047, "tx_1523_2047" },
++	{ 4, BGMAC_TX_LEN_2048_TO_4095, "tx_2048_4095" },
++	{ 4, BGMAC_TX_LEN_4096_TO_8191, "tx_4096_8191" },
++	{ 4, BGMAC_TX_LEN_8192_TO_MAX, "tx_8192_max" },
++	{ 4, BGMAC_TX_JABBER_PKTS, "tx_jabber" },
++	{ 4, BGMAC_TX_OVERSIZE_PKTS, "tx_oversize" },
++	{ 4, BGMAC_TX_FRAGMENT_PKTS, "tx_fragment" },
++	{ 4, BGMAC_TX_UNDERRUNS, "tx_underruns" },
++	{ 4, BGMAC_TX_TOTAL_COLS, "tx_total_cols" },
++	{ 4, BGMAC_TX_SINGLE_COLS, "tx_single_cols" },
++	{ 4, BGMAC_TX_MULTIPLE_COLS, "tx_multiple_cols" },
++	{ 4, BGMAC_TX_EXCESSIVE_COLS, "tx_excessive_cols" },
++	{ 4, BGMAC_TX_LATE_COLS, "tx_late_cols" },
++	{ 4, BGMAC_TX_DEFERED, "tx_defered" },
++	{ 4, BGMAC_TX_CARRIER_LOST, "tx_carrier_lost" },
++	{ 4, BGMAC_TX_PAUSE_PKTS, "tx_pause" },
++	{ 4, BGMAC_TX_UNI_PKTS, "tx_unicast" },
++	{ 4, BGMAC_TX_Q0_PKTS, "tx_q0" },
++	{ 8, BGMAC_TX_Q0_OCTETS, "tx_q0_octets" },
++	{ 4, BGMAC_TX_Q1_PKTS, "tx_q1" },
++	{ 8, BGMAC_TX_Q1_OCTETS, "tx_q1_octets" },
++	{ 4, BGMAC_TX_Q2_PKTS, "tx_q2" },
++	{ 8, BGMAC_TX_Q2_OCTETS, "tx_q2_octets" },
++	{ 4, BGMAC_TX_Q3_PKTS, "tx_q3" },
++	{ 8, BGMAC_TX_Q3_OCTETS, "tx_q3_octets" },
++	{ 8, BGMAC_RX_GOOD_OCTETS, "rx_good_octets" },
++	{ 4, BGMAC_RX_GOOD_PKTS, "rx_good" },
++	{ 8, BGMAC_RX_OCTETS, "rx_octets" },
++	{ 4, BGMAC_RX_PKTS, "rx_pkts" },
++	{ 4, BGMAC_RX_BROADCAST_PKTS, "rx_broadcast" },
++	{ 4, BGMAC_RX_MULTICAST_PKTS, "rx_multicast" },
++	{ 4, BGMAC_RX_LEN_64, "rx_64" },
++	{ 4, BGMAC_RX_LEN_65_TO_127, "rx_65_127" },
++	{ 4, BGMAC_RX_LEN_128_TO_255, "rx_128_255" },
++	{ 4, BGMAC_RX_LEN_256_TO_511, "rx_256_511" },
++	{ 4, BGMAC_RX_LEN_512_TO_1023, "rx_512_1023" },
++	{ 4, BGMAC_RX_LEN_1024_TO_1522, "rx_1024_1522" },
++	{ 4, BGMAC_RX_LEN_1523_TO_2047, "rx_1523_2047" },
++	{ 4, BGMAC_RX_LEN_2048_TO_4095, "rx_2048_4095" },
++	{ 4, BGMAC_RX_LEN_4096_TO_8191, "rx_4096_8191" },
++	{ 4, BGMAC_RX_LEN_8192_TO_MAX, "rx_8192_max" },
++	{ 4, BGMAC_RX_JABBER_PKTS, "rx_jabber" },
++	{ 4, BGMAC_RX_OVERSIZE_PKTS, "rx_oversize" },
++	{ 4, BGMAC_RX_FRAGMENT_PKTS, "rx_fragment" },
++	{ 4, BGMAC_RX_MISSED_PKTS, "rx_missed" },
++	{ 4, BGMAC_RX_CRC_ALIGN_ERRS, "rx_crc_align" },
++	{ 4, BGMAC_RX_UNDERSIZE, "rx_undersize" },
++	{ 4, BGMAC_RX_CRC_ERRS, "rx_crc" },
++	{ 4, BGMAC_RX_ALIGN_ERRS, "rx_align" },
++	{ 4, BGMAC_RX_SYMBOL_ERRS, "rx_symbol" },
++	{ 4, BGMAC_RX_PAUSE_PKTS, "rx_pause" },
++	{ 4, BGMAC_RX_NONPAUSE_PKTS, "rx_nonpause" },
++	{ 4, BGMAC_RX_SACHANGES, "rx_sa_changes" },
++	{ 4, BGMAC_RX_UNI_PKTS, "rx_unicast" },
++};
++
++#define BGMAC_STATS_LEN	ARRAY_SIZE(bgmac_get_strings_stats)
++
++static int bgmac_get_sset_count(struct net_device *dev, int string_set)
++{
++	switch (string_set) {
++	case ETH_SS_STATS:
++		return BGMAC_STATS_LEN;
++	}
++
++	return -EOPNOTSUPP;
++}
++
++static void bgmac_get_strings(struct net_device *dev, u32 stringset,
++			      u8 *data)
++{
++	int i;
++
++	if (stringset != ETH_SS_STATS)
++		return;
++
++	for (i = 0; i < BGMAC_STATS_LEN; i++)
++		strlcpy(data + i * ETH_GSTRING_LEN,
++			bgmac_get_strings_stats[i].name, ETH_GSTRING_LEN);
++}
++
++static void bgmac_get_ethtool_stats(struct net_device *dev,
++				    struct ethtool_stats *ss, uint64_t *data)
++{
++	struct bgmac *bgmac = netdev_priv(dev);
++	const struct bgmac_stat *s;
++	unsigned int i;
++	u64 val;
++
++	if (!netif_running(dev))
++		return;
++
++	for (i = 0; i < BGMAC_STATS_LEN; i++) {
++		s = &bgmac_get_strings_stats[i];
++		val = 0;
++		if (s->size == 8)
++			val = (u64)bgmac_read(bgmac, s->offset + 4) << 32;
++		val |= bgmac_read(bgmac, s->offset);
++		data[i] = val;
++	}
++}
++
+ static int bgmac_get_settings(struct net_device *net_dev,
+ 			      struct ethtool_cmd *cmd)
+ {
+@@ -1406,6 +1527,9 @@ static void bgmac_get_drvinfo(struct net
+ }
+ 
+ static const struct ethtool_ops bgmac_ethtool_ops = {
++	.get_strings		= bgmac_get_strings,
++	.get_sset_count		= bgmac_get_sset_count,
++	.get_ethtool_stats	= bgmac_get_ethtool_stats,
+ 	.get_settings		= bgmac_get_settings,
+ 	.set_settings		= bgmac_set_settings,
+ 	.get_drvinfo		= bgmac_get_drvinfo,
+--- a/drivers/net/ethernet/broadcom/bgmac.h
++++ b/drivers/net/ethernet/broadcom/bgmac.h
+@@ -123,7 +123,7 @@
+ #define BGMAC_TX_LEN_1024_TO_1522		0x334
+ #define BGMAC_TX_LEN_1523_TO_2047		0x338
+ #define BGMAC_TX_LEN_2048_TO_4095		0x33c
+-#define BGMAC_TX_LEN_4095_TO_8191		0x340
++#define BGMAC_TX_LEN_4096_TO_8191		0x340
+ #define BGMAC_TX_LEN_8192_TO_MAX		0x344
+ #define BGMAC_TX_JABBER_PKTS			0x348		/* Error */
+ #define BGMAC_TX_OVERSIZE_PKTS			0x34c		/* Error */
+@@ -166,7 +166,7 @@
+ #define BGMAC_RX_LEN_1024_TO_1522		0x3e4
+ #define BGMAC_RX_LEN_1523_TO_2047		0x3e8
+ #define BGMAC_RX_LEN_2048_TO_4095		0x3ec
+-#define BGMAC_RX_LEN_4095_TO_8191		0x3f0
++#define BGMAC_RX_LEN_4096_TO_8191		0x3f0
+ #define BGMAC_RX_LEN_8192_TO_MAX		0x3f4
+ #define BGMAC_RX_JABBER_PKTS			0x3f8		/* Error */
+ #define BGMAC_RX_OVERSIZE_PKTS			0x3fc		/* Error */
diff --git a/target/linux/generic/patches-4.4/072-0003-bgmac-Maintain-some-netdev-statistics.patch b/target/linux/generic/patches-4.4/072-0003-bgmac-Maintain-some-netdev-statistics.patch
new file mode 100644
index 0000000000..17a7ce060c
--- /dev/null
+++ b/target/linux/generic/patches-4.4/072-0003-bgmac-Maintain-some-netdev-statistics.patch
@@ -0,0 +1,68 @@
+From 6d490f62a4c7f11c552591bdd08eda3636aa0db9 Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <f.fainelli@gmail.com>
+Date: Tue, 7 Jun 2016 15:06:15 -0700
+Subject: [PATCH 3/3] bgmac: Maintain some netdev statistics
+
+Add a few netdev statistics to report transmitted and received bytes and
+packets and a few obvious errors.
+
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -246,6 +246,8 @@ err_dma_head:
+ 
+ err_drop:
+ 	dev_kfree_skb(skb);
++	net_dev->stats.tx_dropped++;
++	net_dev->stats.tx_errors++;
+ 	return NETDEV_TX_OK;
+ }
+ 
+@@ -284,6 +286,8 @@ static void bgmac_dma_tx_free(struct bgm
+ 				       DMA_TO_DEVICE);
+ 
+ 		if (slot->skb) {
++			bgmac->net_dev->stats.tx_bytes += slot->skb->len;
++			bgmac->net_dev->stats.tx_packets++;
+ 			bytes_compl += slot->skb->len;
+ 			pkts_compl++;
+ 
+@@ -464,6 +468,7 @@ static int bgmac_dma_rx_read(struct bgma
+ 				bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
+ 					  ring->start);
+ 				put_page(virt_to_head_page(buf));
++				bgmac->net_dev->stats.rx_errors++;
+ 				break;
+ 			}
+ 
+@@ -471,6 +476,8 @@ static int bgmac_dma_rx_read(struct bgma
+ 				bgmac_err(bgmac, "Found oversized packet at slot %d, DMA issue!\n",
+ 					  ring->start);
+ 				put_page(virt_to_head_page(buf));
++				bgmac->net_dev->stats.rx_length_errors++;
++				bgmac->net_dev->stats.rx_errors++;
+ 				break;
+ 			}
+ 
+@@ -481,6 +488,7 @@ static int bgmac_dma_rx_read(struct bgma
+ 			if (unlikely(!skb)) {
+ 				bgmac_err(bgmac, "build_skb failed\n");
+ 				put_page(virt_to_head_page(buf));
++				bgmac->net_dev->stats.rx_errors++;
+ 				break;
+ 			}
+ 			skb_put(skb, BGMAC_RX_FRAME_OFFSET +
+@@ -490,6 +498,8 @@ static int bgmac_dma_rx_read(struct bgma
+ 
+ 			skb_checksum_none_assert(skb);
+ 			skb->protocol = eth_type_trans(skb, bgmac->net_dev);
++			bgmac->net_dev->stats.rx_bytes += len;
++			bgmac->net_dev->stats.rx_packets++;
+ 			napi_gro_receive(&bgmac->napi, skb);
+ 			handled++;
+ 		} while (0);
diff --git a/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch b/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch
index 8a68e7e401..4348574cbb 100644
--- a/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch
+++ b/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch
@@ -12,7 +12,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  #include <linux/bcm47xx_nvram.h>
  
  static const struct bcma_device_id bgmac_bcma_tbl[] = {
-@@ -1544,6 +1545,17 @@ static void bgmac_mii_unregister(struct
+@@ -1683,6 +1684,17 @@ static void bgmac_mii_unregister(struct
  	mdiobus_free(mii_bus);
  }
  
@@ -30,7 +30,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  /**************************************************
   * BCMA bus ops
   **************************************************/
-@@ -1688,6 +1700,14 @@ static int bgmac_probe(struct bcma_devic
+@@ -1828,6 +1840,14 @@ static int bgmac_probe(struct bcma_devic
  	net_dev->hw_features = net_dev->features;
  	net_dev->vlan_features = net_dev->features;
  
@@ -45,7 +45,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  	err = register_netdev(bgmac->net_dev);
  	if (err) {
  		bgmac_err(bgmac, "Cannot register net device\n");
-@@ -1714,6 +1734,10 @@ static void bgmac_remove(struct bcma_dev
+@@ -1854,6 +1874,10 @@ static void bgmac_remove(struct bcma_dev
  {
  	struct bgmac *bgmac = bcma_get_drvdata(core);