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

Pull networking updates from David Miller:

 1) Add VF IPSEC offload support in ixgbe, from Shannon Nelson.

 2) Add zero-copy AF_XDP support to i40e, from Björn Töpel.

 3) All in-tree drivers are converted to {g,s}et_link_ksettings() so we
    can get rid of the {g,s}et_settings ethtool callbacks, from Michal
    Kubecek.

 4) Add software timestamping to veth driver, from Michael Walle.

 5) More work to make packet classifiers and actions lockless, from Vlad
    Buslov.

 6) Support sticky FDB entries in bridge, from Nikolay Aleksandrov.

 7) Add ipv6 version of IP_MULTICAST_ALL sockopt, from Andre Naujoks.

 8) Support batching of XDP buffers in vhost_net, from Jason Wang.

 9) Add flow dissector BPF hook, from Petar Penkov.

10) i40e vf --> generic iavf conversion, from Jesse Brandeburg.

11) Add NLA_REJECT netlink attribute policy type, to signal when users
    provide attributes in situations which don't make sense. From
    Johannes Berg.

12) Switch TCP and fair-queue scheduler over to earliest departure time
    model. From Eric Dumazet.

13) Improve guest receive performance by doing rx busy polling in tx
    path of vhost networking driver, from Tonghao Zhang.

14) Add per-cgroup local storage to bpf

15) Add reference tracking to BPF, from Joe Stringer. The verifier can
    now make sure that references taken to objects are properly released
    by the program.

16) Support in-place encryption in TLS, from Vakul Garg.

17) Add new taprio packet scheduler, from Vinicius Costa Gomes.

18) Lots of selftests additions, too numerous to mention one by one here
    but all of which are very much appreciated.

19) Support offloading of eBPF programs containing BPF to BPF calls in
    nfp driver, frm Quentin Monnet.

20) Move dpaa2_ptp driver out of staging, from Yangbo Lu.

21) Lots of u32 classifier cleanups and simplifications, from Al Viro.

22) Add new strict versions of netlink message parsers, and enable them
    for some situations. From David Ahern.

23) Evict neighbour entries on carrier down, also from David Ahern.

24) Support BPF sk_msg verdict programs with kTLS, from Daniel Borkmann
    and John Fastabend.

25) Add support for filtering route dumps, from David Ahern.

26) New igc Intel driver for 2.5G parts, from Sasha Neftin et al.

27) Allow vxlan enslavement to bridges in mlxsw driver, from Ido
    Schimmel.

28) Add queue and stack map types to eBPF, from Mauricio Vasquez B.

29) Add back byte-queue-limit support to r8169, with all the bug fixes
    in other areas of the driver it works now! From Florian Westphal and
    Heiner Kallweit.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2147 commits)
  tcp: add tcp_reset_xmit_timer() helper
  qed: Fix static checker warning
  Revert "be2net: remove desc field from be_eq_obj"
  Revert "net: simplify sock_poll_wait"
  net: socionext: Reset tx queue in ndo_stop
  net: socionext: Add dummy PHY register read in phy_write()
  net: socionext: Stop PHY before resetting netsec
  net: stmmac: Set OWN bit for jumbo frames
  arm64: dts: stratix10: Support Ethernet Jumbo frame
  tls: Add maintainers
  net: ethernet: ti: cpsw: unsync mcast entries while switch promisc mode
  octeontx2-af: Support for NIXLF's UCAST/PROMISC/ALLMULTI modes
  octeontx2-af: Support for setting MAC address
  octeontx2-af: Support for changing RSS algorithm
  octeontx2-af: NIX Rx flowkey configuration for RSS
  octeontx2-af: Install ucast and bcast pkt forwarding rules
  octeontx2-af: Add LMAC channel info to NIXLF_ALLOC response
  octeontx2-af: NPC MCAM and LDATA extract minimal configuration
  octeontx2-af: Enable packet length and csum validation
  octeontx2-af: Support for VTAG strip and capture
  ...

1 files changed, 60 insertions, 9 deletions

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 2fee65886d50..f036c8f98ea3 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -40,6 +40,7 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/serdev.h>
+#include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -63,6 +64,9 @@
 /* susclk rate */
 #define SUSCLK_RATE_32KHZ	32768
 
+/* Controller debug log header */
+#define QCA_DEBUG_HANDLE	0x2EDC
+
 /* HCI_IBS transmit side sleep protocol states */
 enum tx_ibs_states {
 	HCI_IBS_TX_ASLEEP,
@@ -167,7 +171,8 @@ struct qca_serdev {
 };
 
 static int qca_power_setup(struct hci_uart *hu, bool on);
-static void qca_power_shutdown(struct hci_dev *hdev);
+static void qca_power_shutdown(struct hci_uart *hu);
+static int qca_power_off(struct hci_dev *hdev);
 
 static void __serial_clock_on(struct tty_struct *tty)
 {
@@ -499,7 +504,6 @@ static int qca_open(struct hci_uart *hu)
 	hu->priv = qca;
 
 	if (hu->serdev) {
-		serdev_device_open(hu->serdev);
 
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 		if (qcadev->btsoc_type != QCA_WCN3990) {
@@ -609,11 +613,10 @@ static int qca_close(struct hci_uart *hu)
 	if (hu->serdev) {
 		qcadev = serdev_device_get_drvdata(hu->serdev);
 		if (qcadev->btsoc_type == QCA_WCN3990)
-			qca_power_shutdown(hu->hdev);
+			qca_power_shutdown(hu);
 		else
 			gpiod_set_value_cansleep(qcadev->bt_en, 0);
 
-		serdev_device_close(hu->serdev);
 	}
 
 	kfree_skb(qca->rx_skb);
@@ -850,6 +853,19 @@ static int qca_ibs_wake_ack(struct hci_dev *hdev, struct sk_buff *skb)
 	return 0;
 }
 
+static int qca_recv_acl_data(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	/* We receive debug logs from chip as an ACL packets.
+	 * Instead of sending the data to ACL to decode the
+	 * received data, we are pushing them to the above layers
+	 * as a diagnostic packet.
+	 */
+	if (get_unaligned_le16(skb->data) == QCA_DEBUG_HANDLE)
+		return hci_recv_diag(hdev, skb);
+
+	return hci_recv_frame(hdev, skb);
+}
+
 #define QCA_IBS_SLEEP_IND_EVENT \
 	.type = HCI_IBS_SLEEP_IND, \
 	.hlen = 0, \
@@ -872,7 +888,7 @@ static int qca_ibs_wake_ack(struct hci_dev *hdev, struct sk_buff *skb)
 	.maxlen = HCI_MAX_IBS_SIZE
 
 static const struct h4_recv_pkt qca_recv_pkts[] = {
-	{ H4_RECV_ACL,             .recv = hci_recv_frame    },
+	{ H4_RECV_ACL,             .recv = qca_recv_acl_data },
 	{ H4_RECV_SCO,             .recv = hci_recv_frame    },
 	{ H4_RECV_EVENT,           .recv = hci_recv_frame    },
 	{ QCA_IBS_WAKE_IND_EVENT,  .recv = qca_ibs_wake_ind  },
@@ -1101,8 +1117,26 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
 static int qca_wcn3990_init(struct hci_uart *hu)
 {
 	struct hci_dev *hdev = hu->hdev;
+	struct qca_serdev *qcadev;
 	int ret;
 
+	/* Check for vregs status, may be hci down has turned
+	 * off the voltage regulator.
+	 */
+	qcadev = serdev_device_get_drvdata(hu->serdev);
+	if (!qcadev->bt_power->vregs_on) {
+		serdev_device_close(hu->serdev);
+		ret = qca_power_setup(hu, true);
+		if (ret)
+			return ret;
+
+		ret = serdev_device_open(hu->serdev);
+		if (ret) {
+			bt_dev_err(hu->hdev, "failed to open port");
+			return ret;
+		}
+	}
+
 	/* Forcefully enable wcn3990 to enter in to boot mode. */
 	host_set_baudrate(hu, 2400);
 	ret = qca_send_power_pulse(hdev, QCA_WCN3990_POWEROFF_PULSE);
@@ -1154,6 +1188,12 @@ static int qca_setup(struct hci_uart *hu)
 
 	if (qcadev->btsoc_type == QCA_WCN3990) {
 		bt_dev_info(hdev, "setting up wcn3990");
+
+		/* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
+		 * setup for every hci up.
+		 */
+		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+		hu->hdev->shutdown = qca_power_off;
 		ret = qca_wcn3990_init(hu);
 		if (ret)
 			return ret;
@@ -1232,15 +1272,26 @@ static const struct qca_vreg_data qca_soc_data = {
 	.num_vregs = 4,
 };
 
-static void qca_power_shutdown(struct hci_dev *hdev)
+static void qca_power_shutdown(struct hci_uart *hu)
 {
-	struct hci_uart *hu = hci_get_drvdata(hdev);
+	struct serdev_device *serdev = hu->serdev;
+	unsigned char cmd = QCA_WCN3990_POWEROFF_PULSE;
 
 	host_set_baudrate(hu, 2400);
-	qca_send_power_pulse(hdev, QCA_WCN3990_POWEROFF_PULSE);
+	hci_uart_set_flow_control(hu, true);
+	serdev_device_write_buf(serdev, &cmd, sizeof(cmd));
+	hci_uart_set_flow_control(hu, false);
 	qca_power_setup(hu, false);
 }
 
+static int qca_power_off(struct hci_dev *hdev)
+{
+	struct hci_uart *hu = hci_get_drvdata(hdev);
+
+	qca_power_shutdown(hu);
+	return 0;
+}
+
 static int qca_enable_regulator(struct qca_vreg vregs,
 				struct regulator *regulator)
 {
@@ -1413,7 +1464,7 @@ static void qca_serdev_remove(struct serdev_device *serdev)
 	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
 
 	if (qcadev->btsoc_type == QCA_WCN3990)
-		qca_power_shutdown(qcadev->serdev_hu.hdev);
+		qca_power_shutdown(&qcadev->serdev_hu);
 	else
 		clk_disable_unprepare(qcadev->susclk);