Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - support "prefer busy polling" NAPI operation mode, where we defer
     softirq for some time expecting applications to periodically busy
     poll

   - AF_XDP: improve efficiency by more batching and hindering the
     adjacency cache prefetcher

   - af_packet: make packet_fanout.arr size configurable up to 64K

   - tcp: optimize TCP zero copy receive in presence of partial or
     unaligned reads making zero copy a performance win for much smaller
     messages

   - XDP: add bulk APIs for returning / freeing frames

   - sched: support fragmenting IP packets as they come out of conntrack

   - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs

  BPF:

   - BPF switch from crude rlimit-based to memcg-based memory accounting

   - BPF type format information for kernel modules and related tracing
     enhancements

   - BPF implement task local storage for BPF LSM

   - allow the FENTRY/FEXIT/RAW_TP tracing programs to use
     bpf_sk_storage

  Protocols:

   - mptcp: improve multiple xmit streams support, memory accounting and
     many smaller improvements

   - TLS: support CHACHA20-POLY1305 cipher

   - seg6: add support for SRv6 End.DT4/DT6 behavior

   - sctp: Implement RFC 6951: UDP Encapsulation of SCTP

   - ppp_generic: add ability to bridge channels directly

   - bridge: Connectivity Fault Management (CFM) support as is defined
     in IEEE 802.1Q section 12.14.

  Drivers:

   - mlx5: make use of the new auxiliary bus to organize the driver
     internals

   - mlx5: more accurate port TX timestamping support

   - mlxsw:
      - improve the efficiency of offloaded next hop updates by using
        the new nexthop object API
      - support blackhole nexthops
      - support IEEE 802.1ad (Q-in-Q) bridging

   - rtw88: major bluetooth co-existance improvements

   - iwlwifi: support new 6 GHz frequency band

   - ath11k: Fast Initial Link Setup (FILS)

   - mt7915: dual band concurrent (DBDC) support

   - net: ipa: add basic support for IPA v4.5

  Refactor:

   - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
     Siewior

   - phy: add support for shared interrupts; get rid of multiple driver
     APIs and have the drivers write a full IRQ handler, slight growth
     of driver code should be compensated by the simpler API which also
     allows shared IRQs

   - add common code for handling netdev per-cpu counters

   - move TX packet re-allocation from Ethernet switch tag drivers to a
     central place

   - improve efficiency and rename nla_strlcpy

   - number of W=1 warning cleanups as we now catch those in a patchwork
     build bot

  Old code removal:

   - wan: delete the DLCI / SDLA drivers

   - wimax: move to staging

   - wifi: remove old WDS wifi bridging support"

* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
  net: hns3: fix expression that is currently always true
  net: fix proc_fs init handling in af_packet and tls
  nfc: pn533: convert comma to semicolon
  af_vsock: Assign the vsock transport considering the vsock address flags
  af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
  vsock_addr: Check for supported flag values
  vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
  vm_sockets: Add flags field in the vsock address data structure
  net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
  tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
  net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
  nfc: s3fwrn5: Release the nfc firmware
  net: vxget: clean up sparse warnings
  mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
  mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
  mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
  mlxsw: reg: Add Router LPM Cache Enable Register
  mlxsw: reg: Add Router LPM Cache ML Delete Register
  mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
  mlxsw: reg: Add XM Router M Table Register
  ...

1 files changed, 165 insertions, 16 deletions

diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 575580d3ffe0..99ecd6c4c15a 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -41,6 +41,12 @@
 #define RTL8211E_RX_DELAY			BIT(11)
 
 #define RTL8201F_ISR				0x1e
+#define RTL8201F_ISR_ANERR			BIT(15)
+#define RTL8201F_ISR_DUPLEX			BIT(13)
+#define RTL8201F_ISR_LINK			BIT(11)
+#define RTL8201F_ISR_MASK			(RTL8201F_ISR_ANERR | \
+						 RTL8201F_ISR_DUPLEX | \
+						 RTL8201F_ISR_LINK)
 #define RTL8201F_IER				0x13
 
 #define RTL8366RB_POWER_SAVE			0x15
@@ -102,24 +108,45 @@ static int rtl8211f_ack_interrupt(struct phy_device *phydev)
 static int rtl8201_config_intr(struct phy_device *phydev)
 {
 	u16 val;
+	int err;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = rtl8201_ack_interrupt(phydev);
+		if (err)
+			return err;
 
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 		val = BIT(13) | BIT(12) | BIT(11);
-	else
+		err = phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
+	} else {
 		val = 0;
+		err = phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
+		if (err)
+			return err;
 
-	return phy_write_paged(phydev, 0x7, RTL8201F_IER, val);
+		err = rtl8201_ack_interrupt(phydev);
+	}
+
+	return err;
 }
 
 static int rtl8211b_config_intr(struct phy_device *phydev)
 {
 	int err;
 
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = rtl821x_ack_interrupt(phydev);
+		if (err)
+			return err;
+
 		err = phy_write(phydev, RTL821x_INER,
 				RTL8211B_INER_INIT);
-	else
+	} else {
 		err = phy_write(phydev, RTL821x_INER, 0);
+		if (err)
+			return err;
+
+		err = rtl821x_ack_interrupt(phydev);
+	}
 
 	return err;
 }
@@ -128,11 +155,20 @@ static int rtl8211e_config_intr(struct phy_device *phydev)
 {
 	int err;
 
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = rtl821x_ack_interrupt(phydev);
+		if (err)
+			return err;
+
 		err = phy_write(phydev, RTL821x_INER,
 				RTL8211E_INER_LINK_STATUS);
-	else
+	} else {
 		err = phy_write(phydev, RTL821x_INER, 0);
+		if (err)
+			return err;
+
+		err = rtl821x_ack_interrupt(phydev);
+	}
 
 	return err;
 }
@@ -140,13 +176,85 @@ static int rtl8211e_config_intr(struct phy_device *phydev)
 static int rtl8211f_config_intr(struct phy_device *phydev)
 {
 	u16 val;
+	int err;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = rtl8211f_ack_interrupt(phydev);
+		if (err)
+			return err;
 
-	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 		val = RTL8211F_INER_LINK_STATUS;
-	else
+		err = phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
+	} else {
 		val = 0;
+		err = phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
+		if (err)
+			return err;
 
-	return phy_write_paged(phydev, 0xa42, RTL821x_INER, val);
+		err = rtl8211f_ack_interrupt(phydev);
+	}
+
+	return err;
+}
+
+static irqreturn_t rtl8201_handle_interrupt(struct phy_device *phydev)
+{
+	int irq_status;
+
+	irq_status = phy_read(phydev, RTL8201F_ISR);
+	if (irq_status < 0) {
+		phy_error(phydev);
+		return IRQ_NONE;
+	}
+
+	if (!(irq_status & RTL8201F_ISR_MASK))
+		return IRQ_NONE;
+
+	phy_trigger_machine(phydev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t rtl821x_handle_interrupt(struct phy_device *phydev)
+{
+	int irq_status, irq_enabled;
+
+	irq_status = phy_read(phydev, RTL821x_INSR);
+	if (irq_status < 0) {
+		phy_error(phydev);
+		return IRQ_NONE;
+	}
+
+	irq_enabled = phy_read(phydev, RTL821x_INER);
+	if (irq_enabled < 0) {
+		phy_error(phydev);
+		return IRQ_NONE;
+	}
+
+	if (!(irq_status & irq_enabled))
+		return IRQ_NONE;
+
+	phy_trigger_machine(phydev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t rtl8211f_handle_interrupt(struct phy_device *phydev)
+{
+	int irq_status;
+
+	irq_status = phy_read_paged(phydev, 0xa43, RTL8211F_INSR);
+	if (irq_status < 0) {
+		phy_error(phydev);
+		return IRQ_NONE;
+	}
+
+	if (!(irq_status & RTL8211F_INER_LINK_STATUS))
+		return IRQ_NONE;
+
+	phy_trigger_machine(phydev);
+
+	return IRQ_HANDLED;
 }
 
 static int rtl8211_config_aneg(struct phy_device *phydev)
@@ -556,8 +664,8 @@ static struct phy_driver realtek_drvs[] = {
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc816),
 		.name		= "RTL8201F Fast Ethernet",
-		.ack_interrupt	= &rtl8201_ack_interrupt,
 		.config_intr	= &rtl8201_config_intr,
+		.handle_interrupt = rtl8201_handle_interrupt,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 		.read_page	= rtl821x_read_page,
@@ -582,8 +690,8 @@ static struct phy_driver realtek_drvs[] = {
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc912),
 		.name		= "RTL8211B Gigabit Ethernet",
-		.ack_interrupt	= &rtl821x_ack_interrupt,
 		.config_intr	= &rtl8211b_config_intr,
+		.handle_interrupt = rtl821x_handle_interrupt,
 		.read_mmd	= &genphy_read_mmd_unsupported,
 		.write_mmd	= &genphy_write_mmd_unsupported,
 		.suspend	= rtl8211b_suspend,
@@ -601,8 +709,8 @@ static struct phy_driver realtek_drvs[] = {
 	}, {
 		PHY_ID_MATCH_EXACT(0x001cc914),
 		.name		= "RTL8211DN Gigabit Ethernet",
-		.ack_interrupt	= rtl821x_ack_interrupt,
 		.config_intr	= rtl8211e_config_intr,
+		.handle_interrupt = rtl821x_handle_interrupt,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 		.read_page	= rtl821x_read_page,
@@ -611,8 +719,8 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc915),
 		.name		= "RTL8211E Gigabit Ethernet",
 		.config_init	= &rtl8211e_config_init,
-		.ack_interrupt	= &rtl821x_ack_interrupt,
 		.config_intr	= &rtl8211e_config_intr,
+		.handle_interrupt = rtl821x_handle_interrupt,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 		.read_page	= rtl821x_read_page,
@@ -621,8 +729,9 @@ static struct phy_driver realtek_drvs[] = {
 		PHY_ID_MATCH_EXACT(0x001cc916),
 		.name		= "RTL8211F Gigabit Ethernet",
 		.config_init	= &rtl8211f_config_init,
-		.ack_interrupt	= &rtl8211f_ack_interrupt,
+		.read_status	= rtlgen_read_status,
 		.config_intr	= &rtl8211f_config_intr,
+		.handle_interrupt = rtl8211f_handle_interrupt,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 		.read_page	= rtl821x_read_page,
@@ -662,6 +771,46 @@ static struct phy_driver realtek_drvs[] = {
 		.read_mmd	= rtl822x_read_mmd,
 		.write_mmd	= rtl822x_write_mmd,
 	}, {
+		PHY_ID_MATCH_EXACT(0x001cc838),
+		.name           = "RTL8226-CG 2.5Gbps PHY",
+		.get_features   = rtl822x_get_features,
+		.config_aneg    = rtl822x_config_aneg,
+		.read_status    = rtl822x_read_status,
+		.suspend        = genphy_suspend,
+		.resume         = rtlgen_resume,
+		.read_page      = rtl821x_read_page,
+		.write_page     = rtl821x_write_page,
+	}, {
+		PHY_ID_MATCH_EXACT(0x001cc848),
+		.name           = "RTL8226B-CG_RTL8221B-CG 2.5Gbps PHY",
+		.get_features   = rtl822x_get_features,
+		.config_aneg    = rtl822x_config_aneg,
+		.read_status    = rtl822x_read_status,
+		.suspend        = genphy_suspend,
+		.resume         = rtlgen_resume,
+		.read_page      = rtl821x_read_page,
+		.write_page     = rtl821x_write_page,
+	}, {
+		PHY_ID_MATCH_EXACT(0x001cc849),
+		.name           = "RTL8221B-VB-CG 2.5Gbps PHY",
+		.get_features   = rtl822x_get_features,
+		.config_aneg    = rtl822x_config_aneg,
+		.read_status    = rtl822x_read_status,
+		.suspend        = genphy_suspend,
+		.resume         = rtlgen_resume,
+		.read_page      = rtl821x_read_page,
+		.write_page     = rtl821x_write_page,
+	}, {
+		PHY_ID_MATCH_EXACT(0x001cc84a),
+		.name           = "RTL8221B-VM-CG 2.5Gbps PHY",
+		.get_features   = rtl822x_get_features,
+		.config_aneg    = rtl822x_config_aneg,
+		.read_status    = rtl822x_read_status,
+		.suspend        = genphy_suspend,
+		.resume         = rtlgen_resume,
+		.read_page      = rtl821x_read_page,
+		.write_page     = rtl821x_write_page,
+	}, {
 		PHY_ID_MATCH_EXACT(0x001cc961),
 		.name		= "RTL8366RB Gigabit Ethernet",
 		.config_init	= &rtl8366rb_config_init,
@@ -670,8 +819,8 @@ static struct phy_driver realtek_drvs[] = {
 		 * irq is requested and ACKed by reading the status register,
 		 * which is done by the irqchip code.
 		 */
-		.ack_interrupt	= genphy_no_ack_interrupt,
 		.config_intr	= genphy_no_config_intr,
+		.handle_interrupt = genphy_handle_interrupt_no_ack,
 		.suspend	= genphy_suspend,
 		.resume		= genphy_resume,
 	},