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
  ...

1 files changed, 69 insertions, 42 deletions

diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index 21b3f36..8a0bd98 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -6,12 +6,18 @@
  *
  * There appears to be several different data paths through the PHY which
  * are automatically managed by the PHY.  The following has been determined
- * via observation and experimentation:
+ * via observation and experimentation for a setup using single-lane Serdes:
  *
  *       SGMII PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for <= 1G)
  *  10GBASE-KR PHYXS -- BASE-T PCS -- 10G PMA -- AN -- Copper (for 10G)
  *  10GBASE-KR PHYXS -- BASE-R PCS -- Fiber
  *
+ * With XAUI, observation shows:
+ *
+ *        XAUI PHYXS -- <appropriate PCS as above>
+ *
+ * and no switching of the host interface mode occurs.
+ *
  * If both the fiber and copper ports are connected, the first to gain
  * link takes priority and the other port is completely locked out.
  */
@@ -23,19 +29,17 @@ enum {
 	MV_PCS_BASE_R		= 0x1000,
 	MV_PCS_1000BASEX	= 0x2000,
 
+	MV_PCS_PAIRSWAP		= 0x8182,
+	MV_PCS_PAIRSWAP_MASK	= 0x0003,
+	MV_PCS_PAIRSWAP_AB	= 0x0002,
+	MV_PCS_PAIRSWAP_NONE	= 0x0003,
+
 	/* These registers appear at 0x800X and 0xa00X - the 0xa00X control
 	 * registers appear to set themselves to the 0x800X when AN is
 	 * restarted, but status registers appear readable from either.
 	 */
 	MV_AN_CTRL1000		= 0x8000, /* 1000base-T control register */
 	MV_AN_STAT1000		= 0x8001, /* 1000base-T status register */
-
-	/* This register appears to reflect the copper status */
-	MV_AN_RESULT		= 0xa016,
-	MV_AN_RESULT_SPD_10	= BIT(12),
-	MV_AN_RESULT_SPD_100	= BIT(13),
-	MV_AN_RESULT_SPD_1000	= BIT(14),
-	MV_AN_RESULT_SPD_10000	= BIT(15),
 };
 
 static int mv3310_modify(struct phy_device *phydev, int devad, u16 reg,
@@ -84,7 +88,6 @@ static int mv3310_config_init(struct phy_device *phydev)
 
 	/* Check that the PHY interface type is compatible */
 	if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
-	    phydev->interface != PHY_INTERFACE_MODE_XGMII &&
 	    phydev->interface != PHY_INTERFACE_MODE_XAUI &&
 	    phydev->interface != PHY_INTERFACE_MODE_RXAUI &&
 	    phydev->interface != PHY_INTERFACE_MODE_10GKR)
@@ -150,12 +153,18 @@ static int mv3310_config_init(struct phy_device *phydev)
 		if (val & MDIO_PMA_EXTABLE_1000BKX)
 			__set_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
 				  supported);
-		if (val & MDIO_PMA_EXTABLE_100BTX)
+		if (val & MDIO_PMA_EXTABLE_100BTX) {
 			__set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
 				  supported);
-		if (val & MDIO_PMA_EXTABLE_10BT)
+			__set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
+				  supported);
+		}
+		if (val & MDIO_PMA_EXTABLE_10BT) {
 			__set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
 				  supported);
+			__set_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
+				  supported);
+		}
 	}
 
 	if (!ethtool_convert_link_mode_to_legacy_u32(&mask, supported))
@@ -175,6 +184,9 @@ static int mv3310_config_aneg(struct phy_device *phydev)
 	u32 advertising;
 	int ret;
 
+	/* We don't support manual MDI control */
+	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
+
 	if (phydev->autoneg == AUTONEG_DISABLE) {
 		ret = genphy_c45_pma_setup_forced(phydev);
 		if (ret < 0)
@@ -233,6 +245,24 @@ static int mv3310_aneg_done(struct phy_device *phydev)
 	return genphy_c45_aneg_done(phydev);
 }
 
+static void mv3310_update_interface(struct phy_device *phydev)
+{
+	if ((phydev->interface == PHY_INTERFACE_MODE_SGMII ||
+	     phydev->interface == PHY_INTERFACE_MODE_10GKR) && phydev->link) {
+		/* The PHY automatically switches its serdes interface (and
+		 * active PHYXS instance) between Cisco SGMII and 10GBase-KR
+		 * modes according to the speed.  Florian suggests setting
+		 * phydev->interface to communicate this to the MAC. Only do
+		 * this if we are already in either SGMII or 10GBase-KR mode.
+		 */
+		if (phydev->speed == SPEED_10000)
+			phydev->interface = PHY_INTERFACE_MODE_10GKR;
+		else if (phydev->speed >= SPEED_10 &&
+			 phydev->speed < SPEED_10000)
+			phydev->interface = PHY_INTERFACE_MODE_SGMII;
+	}
+}
+
 /* 10GBASE-ER,LR,LRM,SR do not support autonegotiation. */
 static int mv3310_read_10gbr_status(struct phy_device *phydev)
 {
@@ -240,8 +270,7 @@ static int mv3310_read_10gbr_status(struct phy_device *phydev)
 	phydev->speed = SPEED_10000;
 	phydev->duplex = DUPLEX_FULL;
 
-	if (phydev->interface == PHY_INTERFACE_MODE_SGMII)
-		phydev->interface = PHY_INTERFACE_MODE_10GKR;
+	mv3310_update_interface(phydev);
 
 	return 0;
 }
@@ -264,6 +293,7 @@ static int mv3310_read_status(struct phy_device *phydev)
 	phydev->link = 0;
 	phydev->pause = 0;
 	phydev->asym_pause = 0;
+	phydev->mdix = 0;
 
 	val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_BASE_R + MDIO_STAT1);
 	if (val < 0)
@@ -294,22 +324,8 @@ static int mv3310_read_status(struct phy_device *phydev)
 
 		phydev->lp_advertising |= mii_stat1000_to_ethtool_lpa_t(val);
 
-		if (phydev->autoneg == AUTONEG_ENABLE) {
-			val = phy_read_mmd(phydev, MDIO_MMD_AN, MV_AN_RESULT);
-			if (val < 0)
-				return val;
-
-			if (val & MV_AN_RESULT_SPD_10000)
-				phydev->speed = SPEED_10000;
-			else if (val & MV_AN_RESULT_SPD_1000)
-				phydev->speed = SPEED_1000;
-			else if (val & MV_AN_RESULT_SPD_100)
-				phydev->speed = SPEED_100;
-			else if (val & MV_AN_RESULT_SPD_10)
-				phydev->speed = SPEED_10;
-
-			phydev->duplex = DUPLEX_FULL;
-		}
+		if (phydev->autoneg == AUTONEG_ENABLE)
+			phy_resolve_aneg_linkmode(phydev);
 	}
 
 	if (phydev->autoneg != AUTONEG_ENABLE) {
@@ -318,21 +334,30 @@ static int mv3310_read_status(struct phy_device *phydev)
 			return val;
 	}
 
-	if ((phydev->interface == PHY_INTERFACE_MODE_SGMII ||
-	     phydev->interface == PHY_INTERFACE_MODE_10GKR) && phydev->link) {
-		/* The PHY automatically switches its serdes interface (and
-		 * active PHYXS instance) between Cisco SGMII and 10GBase-KR
-		 * modes according to the speed.  Florian suggests setting
-		 * phydev->interface to communicate this to the MAC. Only do
-		 * this if we are already in either SGMII or 10GBase-KR mode.
-		 */
-		if (phydev->speed == SPEED_10000)
-			phydev->interface = PHY_INTERFACE_MODE_10GKR;
-		else if (phydev->speed >= SPEED_10 &&
-			 phydev->speed < SPEED_10000)
-			phydev->interface = PHY_INTERFACE_MODE_SGMII;
+	if (phydev->speed == SPEED_10000) {
+		val = genphy_c45_read_mdix(phydev);
+		if (val < 0)
+			return val;
+	} else {
+		val = phy_read_mmd(phydev, MDIO_MMD_PCS, MV_PCS_PAIRSWAP);
+		if (val < 0)
+			return val;
+
+		switch (val & MV_PCS_PAIRSWAP_MASK) {
+		case MV_PCS_PAIRSWAP_AB:
+			phydev->mdix = ETH_TP_MDI_X;
+			break;
+		case MV_PCS_PAIRSWAP_NONE:
+			phydev->mdix = ETH_TP_MDI;
+			break;
+		default:
+			phydev->mdix = ETH_TP_MDI_INVALID;
+			break;
+		}
 	}
 
+	mv3310_update_interface(phydev);
+
 	return 0;
 }
 
@@ -342,7 +367,9 @@ static struct phy_driver mv3310_drivers[] = {
 		.phy_id_mask	= MARVELL_PHY_ID_MASK,
 		.name		= "mv88x3310",
 		.features	= SUPPORTED_10baseT_Full |
+				  SUPPORTED_10baseT_Half |
 				  SUPPORTED_100baseT_Full |
+				  SUPPORTED_100baseT_Half |
 				  SUPPORTED_1000baseT_Full |
 				  SUPPORTED_Autoneg |
 				  SUPPORTED_TP |