Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

3 files changed, 95 insertions, 23 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index 8b5cdf490850..cac86e9ae0dd 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -1168,7 +1168,7 @@ void hns_set_led_opt(struct hns_mac_cb *mac_cb)
 int hns_cpld_led_set_id(struct hns_mac_cb *mac_cb,
 			enum hnae_led_state status)
 {
-	if (!mac_cb || !mac_cb->cpld_ctrl)
+	if (!mac_cb)
 		return 0;
 
 	return mac_cb->dsaf_dev->misc_op->cpld_set_led_id(mac_cb, status);
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index 408b63faf9a8..acf29633ec79 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -18,6 +18,7 @@ enum _dsm_op_index {
 	HNS_OP_LED_SET_FUNC             = 0x3,
 	HNS_OP_GET_PORT_TYPE_FUNC       = 0x4,
 	HNS_OP_GET_SFP_STAT_FUNC        = 0x5,
+	HNS_OP_LOCATE_LED_SET_FUNC      = 0x6,
 };
 
 enum _dsm_rst_type {
@@ -43,12 +44,17 @@ static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val)
 
 static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg)
 {
-	u32 ret;
-
-	if (dsaf_dev->sub_ctrl)
-		ret = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg);
-	else
+	u32 ret = 0;
+	int err;
+
+	if (dsaf_dev->sub_ctrl) {
+		err = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg, &ret);
+		if (err)
+			dev_err(dsaf_dev->dev, "dsaf_read_syscon error %d!\n",
+				err);
+	} else {
 		ret = dsaf_read_reg(dsaf_dev->sc_base, reg);
+	}
 
 	return ret;
 }
@@ -81,6 +87,33 @@ static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type,
        ACPI_FREE(obj);
 }
 
+static void hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb *mac_cb,
+						 u8 op_type, u32 locate,
+						 u32 port)
+{
+	union acpi_object obj_args[2], argv4;
+	union acpi_object *obj;
+
+	obj_args[0].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[0].integer.value = locate;
+	obj_args[1].integer.type = ACPI_TYPE_INTEGER;
+	obj_args[1].integer.value = port;
+
+	argv4.type = ACPI_TYPE_PACKAGE;
+	argv4.package.count = 2;
+	argv4.package.elements = obj_args;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
+				&hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
+	if (!obj) {
+		dev_err(mac_cb->dev, "ledctrl fail, locate:%d port:%d!\n",
+			locate, port);
+		return;
+	}
+
+	ACPI_FREE(obj);
+}
+
 static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
 			     u16 speed, int data)
 {
@@ -160,15 +193,23 @@ static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb)
 static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
 			   enum hnae_led_state status)
 {
+	u32 val = 0;
+	int ret;
+
+	if (!mac_cb->cpld_ctrl)
+		return 0;
+
 	switch (status) {
 	case HNAE_LED_ACTIVE:
-		mac_cb->cpld_led_value =
-			dsaf_read_syscon(mac_cb->cpld_ctrl,
-					 mac_cb->cpld_ctrl_reg);
-		dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
-			     CPLD_LED_ON_VALUE);
+		ret = dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				       &val);
+		if (ret)
+			return ret;
+
+		dsaf_set_bit(val, DSAF_LED_ANCHOR_B, CPLD_LED_ON_VALUE);
 		dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
-				  mac_cb->cpld_led_value);
+				  val);
+		mac_cb->cpld_led_value = val;
 		break;
 	case HNAE_LED_INACTIVE:
 		dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
@@ -184,6 +225,30 @@ static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
 	return 0;
 }
 
+static int cpld_set_led_id_acpi(struct hns_mac_cb *mac_cb,
+				enum hnae_led_state status)
+{
+	switch (status) {
+	case HNAE_LED_ACTIVE:
+		hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
+						     HNS_OP_LOCATE_LED_SET_FUNC,
+						     CPLD_LED_ON_VALUE,
+						     mac_cb->mac_id);
+		break;
+	case HNAE_LED_INACTIVE:
+		hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
+						     HNS_OP_LOCATE_LED_SET_FUNC,
+						     CPLD_LED_DEFAULT_VALUE,
+						     mac_cb->mac_id);
+		break;
+	default:
+		dev_err(mac_cb->dev, "invalid led state: %d!", status);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 #define RESET_REQ_OR_DREQ 1
 
 static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type,
@@ -505,12 +570,19 @@ static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb)
 
 int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
 {
+	u32 val = 0;
+	int ret;
+
 	if (!mac_cb->cpld_ctrl)
 		return -ENODEV;
 
-	*sfp_prsnt = !dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg
-					+ MAC_SFP_PORT_OFFSET);
+	ret = dsaf_read_syscon(mac_cb->cpld_ctrl,
+			       mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET,
+			       &val);
+	if (ret)
+		return ret;
 
+	*sfp_prsnt = !val;
 	return 0;
 }
 
@@ -560,7 +632,7 @@ static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
 #define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
 	u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
 
-	int sfp_prsnt;
+	int sfp_prsnt = 0;
 	int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);
 
 	if (!mac_cb->phy_dev) {
@@ -572,7 +644,7 @@ static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
 	}
 
 	if (mac_cb->serdes_ctrl) {
-		u32 origin;
+		u32 origin = 0;
 
 		if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) {
 #define HILINK_ACCESS_SEL_CFG		0x40008
@@ -589,7 +661,10 @@ static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
 						  HILINK_ACCESS_SEL_CFG, 3);
 		}
 
-		origin = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset);
+		ret = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset,
+				       &origin);
+		if (ret)
+			return ret;
 
 		dsaf_set_field(origin, 1ull << 10, 10, en);
 		dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin);
@@ -660,7 +735,7 @@ struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
 	} else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
 		misc_op->cpld_set_led = hns_cpld_set_led_acpi;
 		misc_op->cpld_reset_led = cpld_led_reset_acpi;
-		misc_op->cpld_set_led_id = cpld_set_led_id;
+		misc_op->cpld_set_led_id = cpld_set_led_id_acpi;
 
 		misc_op->dsaf_reset = hns_dsaf_rst_acpi;
 		misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
index 46a52d9bb196..886cbbf25761 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
@@ -1034,12 +1034,9 @@ static inline void dsaf_write_syscon(struct regmap *base, u32 reg, u32 value)
 	regmap_write(base, reg, value);
 }
 
-static inline u32 dsaf_read_syscon(struct regmap *base, u32 reg)
+static inline int dsaf_read_syscon(struct regmap *base, u32 reg, u32 *val)
 {
-	unsigned int val;
-
-	regmap_read(base, reg, &val);
-	return val;
+	return regmap_read(base, reg, val);
 }
 
 #define dsaf_read_dev(a, reg) \