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

Pull networking updates from David Miller:

 1) More iov_iter conversion work from Al Viro.

    [ The "crypto: switch af_alg_make_sg() to iov_iter" commit was
      wrong, and this pull actually adds an extra commit on top of the
      branch I'm pulling to fix that up, so that the pre-merge state is
      ok.   - Linus ]

 2) Various optimizations to the ipv4 forwarding information base trie
    lookup implementation.  From Alexander Duyck.

 3) Remove sock_iocb altogether, from CHristoph Hellwig.

 4) Allow congestion control algorithm selection via routing metrics.
    From Daniel Borkmann.

 5) Make ipv4 uncached route list per-cpu, from Eric Dumazet.

 6) Handle rfs hash collisions more gracefully, also from Eric Dumazet.

 7) Add xmit_more support to r8169, e1000, and e1000e drivers.  From
    Florian Westphal.

 8) Transparent Ethernet Bridging support for GRO, from Jesse Gross.

 9) Add BPF packet actions to packet scheduler, from Jiri Pirko.

10) Add support for uniqu flow IDs to openvswitch, from Joe Stringer.

11) New NetCP ethernet driver, from Muralidharan Karicheri and Wingman
    Kwok.

12) More sanely handle out-of-window dupacks, which can result in
    serious ACK storms.  From Neal Cardwell.

13) Various rhashtable bug fixes and enhancements, from Herbert Xu,
    Patrick McHardy, and Thomas Graf.

14) Support xmit_more in be2net, from Sathya Perla.

15) Group Policy extensions for vxlan, from Thomas Graf.

16) Remove Checksum Offload support for vxlan, from Tom Herbert.

17) Like ipv4, support lockless transmit over ipv6 UDP sockets.  From
    Vlad Yasevich.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1494+1 commits)
  crypto: fix af_alg_make_sg() conversion to iov_iter
  ipv4: Namespecify TCP PMTU mechanism
  i40e: Fix for stats init function call in Rx setup
  tcp: don't include Fast Open option in SYN-ACK on pure SYN-data
  openvswitch: Only set TUNNEL_VXLAN_OPT if VXLAN-GBP metadata is set
  ipv6: Make __ipv6_select_ident static
  ipv6: Fix fragment id assignment on LE arches.
  bridge: Fix inability to add non-vlan fdb entry
  net: Mellanox: Delete unnecessary checks before the function call "vunmap"
  cxgb4: Add support in cxgb4 to get expansion rom version via ethtool
  ethtool: rename reserved1 memeber in ethtool_drvinfo for expansion ROM version
  net: dsa: Remove redundant phy_attach()
  IB/mlx4: Reset flow support for IB kernel ULPs
  IB/mlx4: Always use the correct port for mirrored multicast attachments
  net/bonding: Fix potential bad memory access during bonding events
  tipc: remove tipc_snprintf
  tipc: nl compat add noop and remove legacy nl framework
  tipc: convert legacy nl stats show to nl compat
  tipc: convert legacy nl net id get to nl compat
  tipc: convert legacy nl net id set to nl compat
  ...

1 files changed, 196 insertions, 2 deletions

diff --git a/drivers/net/wireless/mwifiex/11h.c b/drivers/net/wireless/mwifiex/11h.c
index 2668e83afbb6..3ab87a855122 100644
--- a/drivers/net/wireless/mwifiex/11h.c
+++ b/drivers/net/wireless/mwifiex/11h.c
@@ -21,6 +21,16 @@
 #include "fw.h"
 
 
+void mwifiex_init_11h_params(struct mwifiex_private *priv)
+{
+	priv->state_11h.is_11h_enabled = true;
+	priv->state_11h.is_11h_active = false;
+}
+
+inline int mwifiex_is_11h_active(struct mwifiex_private *priv)
+{
+	return priv->state_11h.is_11h_active;
+}
 /* This function appends 11h info to a buffer while joining an
  * infrastructure BSS
  */
@@ -39,7 +49,7 @@ mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
 		return;
 
 	radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
-	sband = priv->wdev->wiphy->bands[radio_type];
+	sband = priv->wdev.wiphy->bands[radio_type];
 
 	cap = (struct mwifiex_ie_types_pwr_capability *)*buffer;
 	cap->header.type = cpu_to_le16(WLAN_EID_PWR_CAPABILITY);
@@ -69,10 +79,14 @@ mwifiex_11h_process_infra_join(struct mwifiex_private *priv, u8 **buffer,
 }
 
 /* Enable or disable the 11h extensions in the firmware */
-static int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
+int mwifiex_11h_activate(struct mwifiex_private *priv, bool flag)
 {
 	u32 enable = flag;
 
+	/* enable master mode radar detection on AP interface */
+	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && enable)
+		enable |= MWIFIEX_MASTER_RADAR_DET_MASK;
+
 	return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
 				HostCmd_ACT_GEN_SET, DOT11H_I, &enable, true);
 }
@@ -91,11 +105,191 @@ void mwifiex_11h_process_join(struct mwifiex_private *priv, u8 **buffer,
 		 * bit
 		 */
 		mwifiex_11h_activate(priv, true);
+		priv->state_11h.is_11h_active = true;
 		bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_SPECTRUM_MGMT;
 		mwifiex_11h_process_infra_join(priv, buffer, bss_desc);
 	} else {
 		/* Deactivate 11h functions in the firmware */
 		mwifiex_11h_activate(priv, false);
+		priv->state_11h.is_11h_active = false;
 		bss_desc->cap_info_bitmap &= ~WLAN_CAPABILITY_SPECTRUM_MGMT;
 	}
 }
+
+/* This is DFS CAC work queue function.
+ * This delayed work emits CAC finished event for cfg80211 if
+ * CAC was started earlier.
+ */
+void mwifiex_dfs_cac_work_queue(struct work_struct *work)
+{
+	struct cfg80211_chan_def chandef;
+	struct delayed_work *delayed_work =
+			container_of(work, struct delayed_work, work);
+	struct mwifiex_private *priv =
+			container_of(delayed_work, struct mwifiex_private,
+				     dfs_cac_work);
+
+	if (WARN_ON(!priv))
+		return;
+
+	chandef = priv->dfs_chandef;
+	if (priv->wdev.cac_started) {
+		dev_dbg(priv->adapter->dev,
+			"CAC timer finished; No radar detected\n");
+		cfg80211_cac_event(priv->netdev, &chandef,
+				   NL80211_RADAR_CAC_FINISHED,
+				   GFP_KERNEL);
+	}
+}
+
+/* This function prepares channel report request command to FW for
+ * starting radar detection.
+ */
+int mwifiex_cmd_issue_chan_report_request(struct mwifiex_private *priv,
+					  struct host_cmd_ds_command *cmd,
+					  void *data_buf)
+{
+	struct host_cmd_ds_chan_rpt_req *cr_req = &cmd->params.chan_rpt_req;
+	struct mwifiex_radar_params *radar_params = (void *)data_buf;
+
+	cmd->command = cpu_to_le16(HostCmd_CMD_CHAN_REPORT_REQUEST);
+	cmd->size = cpu_to_le16(S_DS_GEN);
+	le16_add_cpu(&cmd->size, sizeof(struct host_cmd_ds_chan_rpt_req));
+
+	cr_req->chan_desc.start_freq = cpu_to_le16(MWIFIEX_A_BAND_START_FREQ);
+	cr_req->chan_desc.chan_num = radar_params->chandef->chan->hw_value;
+	cr_req->chan_desc.chan_width = radar_params->chandef->width;
+	cr_req->msec_dwell_time = cpu_to_le32(radar_params->cac_time_ms);
+
+	dev_dbg(priv->adapter->dev,
+		"11h: issuing DFS Radar check for channel=%d\n",
+		radar_params->chandef->chan->hw_value);
+
+	return 0;
+}
+
+/* This function is to abort ongoing CAC upon stopping AP operations
+ * or during unload.
+ */
+void mwifiex_abort_cac(struct mwifiex_private *priv)
+{
+	if (priv->wdev.cac_started) {
+		dev_dbg(priv->adapter->dev,
+			"Aborting delayed work for CAC.\n");
+		cancel_delayed_work_sync(&priv->dfs_cac_work);
+		cfg80211_cac_event(priv->netdev, &priv->dfs_chandef,
+				   NL80211_RADAR_CAC_ABORTED, GFP_KERNEL);
+	}
+}
+
+/* This function handles channel report event from FW during CAC period.
+ * If radar is detected during CAC, driver indicates the same to cfg80211
+ * and also cancels ongoing delayed work.
+ */
+int mwifiex_11h_handle_chanrpt_ready(struct mwifiex_private *priv,
+				     struct sk_buff *skb)
+{
+	struct host_cmd_ds_chan_rpt_event *rpt_event;
+	struct mwifiex_ie_types_chan_rpt_data *rpt;
+	u8 *evt_buf;
+	u16 event_len, tlv_len;
+
+	rpt_event = (void *)(skb->data + sizeof(u32));
+	event_len = skb->len - (sizeof(struct host_cmd_ds_chan_rpt_event)+
+				sizeof(u32));
+
+	if (le32_to_cpu(rpt_event->result) != HostCmd_RESULT_OK) {
+		dev_err(priv->adapter->dev, "Error in channel report event\n");
+		return -1;
+	}
+
+	evt_buf = (void *)&rpt_event->tlvbuf;
+
+	while (event_len >= sizeof(struct mwifiex_ie_types_header)) {
+		rpt = (void *)&rpt_event->tlvbuf;
+		tlv_len = le16_to_cpu(rpt->header.len);
+
+		switch (le16_to_cpu(rpt->header.type)) {
+		case TLV_TYPE_CHANRPT_11H_BASIC:
+			if (rpt->map.radar) {
+				dev_notice(priv->adapter->dev,
+					   "RADAR Detected on channel %d!\n",
+					    priv->dfs_chandef.chan->hw_value);
+				cancel_delayed_work_sync(&priv->dfs_cac_work);
+				cfg80211_cac_event(priv->netdev,
+						   &priv->dfs_chandef,
+						   NL80211_RADAR_DETECTED,
+						   GFP_KERNEL);
+			}
+			break;
+		default:
+			break;
+		}
+
+		evt_buf += (tlv_len + sizeof(rpt->header));
+		event_len -= (tlv_len + sizeof(rpt->header));
+	}
+
+	return 0;
+}
+
+/* Handler for radar detected event from FW.*/
+int mwifiex_11h_handle_radar_detected(struct mwifiex_private *priv,
+				      struct sk_buff *skb)
+{
+	struct mwifiex_radar_det_event *rdr_event;
+
+	rdr_event = (void *)(skb->data + sizeof(u32));
+
+	if (le32_to_cpu(rdr_event->passed)) {
+		dev_notice(priv->adapter->dev,
+			   "radar detected; indicating kernel\n");
+		cfg80211_radar_event(priv->adapter->wiphy, &priv->dfs_chandef,
+				     GFP_KERNEL);
+		dev_dbg(priv->adapter->dev, "regdomain: %d\n",
+			rdr_event->reg_domain);
+		dev_dbg(priv->adapter->dev, "radar detection type: %d\n",
+			rdr_event->det_type);
+	} else {
+		dev_dbg(priv->adapter->dev, "false radar detection event!\n");
+	}
+
+	return 0;
+}
+
+/* This is work queue function for channel switch handling.
+ * This function takes care of updating new channel definitin to
+ * bss config structure, restart AP and indicate channel switch success
+ * to cfg80211.
+ */
+void mwifiex_dfs_chan_sw_work_queue(struct work_struct *work)
+{
+	struct mwifiex_uap_bss_param *bss_cfg;
+	struct delayed_work *delayed_work =
+			container_of(work, struct delayed_work, work);
+	struct mwifiex_private *priv =
+			container_of(delayed_work, struct mwifiex_private,
+				     dfs_chan_sw_work);
+
+	if (WARN_ON(!priv))
+		return;
+
+	bss_cfg = &priv->bss_cfg;
+	if (!bss_cfg->beacon_period) {
+		dev_err(priv->adapter->dev,
+			"channel switch: AP already stopped\n");
+		return;
+	}
+
+	mwifiex_uap_set_channel(bss_cfg, priv->dfs_chandef);
+
+	if (mwifiex_config_start_uap(priv, bss_cfg)) {
+		dev_dbg(priv->adapter->dev,
+			"Failed to start AP after channel switch\n");
+		return;
+	}
+
+	dev_notice(priv->adapter->dev,
+		   "indicating channel switch completion to kernel\n");
+	cfg80211_ch_switch_notify(priv->netdev, &priv->dfs_chandef);
+}