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

Pull networking updates from David Miller:

Changes of note:

 1) Allow to schedule ICMP packets in IPVS, from Alex Gartrell.

 2) Provide FIB table ID in ipv4 route dumps just as ipv6 does, from
    David Ahern.

 3) Allow the user to ask for the statistics to be filtered out of
    ipv4/ipv6 address netlink dumps.  From Sowmini Varadhan.

 4) More work to pass the network namespace context around deep into
    various packet path APIs, starting with the netfilter hooks.  From
    Eric W Biederman.

 5) Add layer 2 TX/RX checksum offloading to qeth driver, from Thomas
    Richter.

 6) Use usec resolution for SYN/ACK RTTs in TCP, from Yuchung Cheng.

 7) Support Very High Throughput in wireless MESH code, from Bob
    Copeland.

 8) Allow setting the ageing_time in switchdev/rocker.  From Scott
    Feldman.

 9) Properly autoload L2TP type modules, from Stephen Hemminger.

10) Fix and enable offload features by default in 8139cp driver, from
    David Woodhouse.

11) Support both ipv4 and ipv6 sockets in a single vxlan device, from
    Jiri Benc.

12) Fix CWND limiting of thin streams in TCP, from Bendik Rønning
    Opstad.

13) Fix IPSEC flowcache overflows on large systems, from Steffen
    Klassert.

14) Convert bridging to track VLANs using rhashtable entries rather than
    a bitmap.  From Nikolay Aleksandrov.

15) Make TCP listener handling completely lockless, this is a major
    accomplishment.  Incoming request sockets now live in the
    established hash table just like any other socket too.

    From Eric Dumazet.

15) Provide more bridging attributes to netlink, from Nikolay
    Aleksandrov.

16) Use hash based algorithm for ipv4 multipath routing, this was very
    long overdue.  From Peter Nørlund.

17) Several y2038 cures, mostly avoiding timespec.  From Arnd Bergmann.

18) Allow non-root execution of EBPF programs, from Alexei Starovoitov.

19) Support SO_INCOMING_CPU as setsockopt, from Eric Dumazet.  This
    influences the port binding selection logic used by SO_REUSEPORT.

20) Add ipv6 support to VRF, from David Ahern.

21) Add support for Mellanox Spectrum switch ASIC, from Jiri Pirko.

22) Add rtl8xxxu Realtek wireless driver, from Jes Sorensen.

23) Implement RACK loss recovery in TCP, from Yuchung Cheng.

24) Support multipath routes in MPLS, from Roopa Prabhu.

25) Fix POLLOUT notification for listening sockets in AF_UNIX, from Eric
    Dumazet.

26) Add new QED Qlogic river, from Yuval Mintz, Manish Chopra, and
    Sudarsana Kalluru.

27) Don't fetch timestamps on AF_UNIX sockets, from Hannes Frederic
    Sowa.

28) Support ipv6 geneve tunnels, from John W Linville.

29) Add flood control support to switchdev layer, from Ido Schimmel.

30) Fix CHECKSUM_PARTIAL handling of potentially fragmented frames, from
    Hannes Frederic Sowa.

31) Support persistent maps and progs in bpf, from Daniel Borkmann.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1790 commits)
  sh_eth: use DMA barriers
  switchdev: respect SKIP_EOPNOTSUPP flag in case there is no recursion
  net: sched: kill dead code in sch_choke.c
  irda: Delete an unnecessary check before the function call "irlmp_unregister_service"
  net: dsa: mv88e6xxx: include DSA ports in VLANs
  net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports
  net/core: fix for_each_netdev_feature
  vlan: Invoke driver vlan hooks only if device is present
  arcnet/com20020: add LEDS_CLASS dependency
  bpf, verifier: annotate verbose printer with __printf
  dp83640: Only wait for timestamps for packets with timestamping enabled.
  ptp: Change ptp_class to a proper bitmask
  dp83640: Prune rx timestamp list before reading from it
  dp83640: Delay scheduled work.
  dp83640: Include hash in timestamp/packet matching
  ipv6: fix tunnel error handling
  net/mlx5e: Fix LSO vlan insertion
  net/mlx5e: Re-eanble client vlan TX acceleration
  net/mlx5e: Return error in case mlx5e_set_features() fails
  net/mlx5e: Don't allow more than max supported channels
  ...

1 files changed, 252 insertions, 264 deletions

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index bf033f46f8aa..6cc1aa3449c8 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -125,19 +125,25 @@ EXPORT_SYMBOL(ath10k_info);
 void ath10k_print_driver_info(struct ath10k *ar)
 {
 	char fw_features[128] = {};
+	char boardinfo[100];
 
 	ath10k_core_get_fw_features_str(ar, fw_features, sizeof(fw_features));
 
-	ath10k_info(ar, "%s (0x%08x, 0x%08x%s%s%s) fw %s api %d htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d features %s\n",
+	if (ar->id.bmi_ids_valid)
+		scnprintf(boardinfo, sizeof(boardinfo), "bmi %d:%d",
+			  ar->id.bmi_chip_id, ar->id.bmi_board_id);
+	else
+		scnprintf(boardinfo, sizeof(boardinfo), "sub %04x:%04x",
+			  ar->id.subsystem_vendor, ar->id.subsystem_device);
+
+	ath10k_info(ar, "%s (0x%08x, 0x%08x %s) fw %s fwapi %d bdapi %d htt-ver %d.%d wmi-op %d htt-op %d cal %s max-sta %d raw %d hwcrypto %d features %s\n",
 		    ar->hw_params.name,
 		    ar->target_version,
 		    ar->chip_id,
-		    (strlen(ar->spec_board_id) > 0 ? ", " : ""),
-		    ar->spec_board_id,
-		    (strlen(ar->spec_board_id) > 0 && !ar->spec_board_loaded
-		     ? " fallback" : ""),
+		    boardinfo,
 		    ar->hw->wiphy->fw_version,
 		    ar->fw_api,
+		    ar->bd_api,
 		    ar->htt.target_version_major,
 		    ar->htt.target_version_minor,
 		    ar->wmi.op_version,
@@ -285,28 +291,6 @@ static void ath10k_debug_fw_stats_reset(struct ath10k *ar)
 	spin_unlock_bh(&ar->data_lock);
 }
 
-static size_t ath10k_debug_fw_stats_num_peers(struct list_head *head)
-{
-	struct ath10k_fw_stats_peer *i;
-	size_t num = 0;
-
-	list_for_each_entry(i, head, list)
-		++num;
-
-	return num;
-}
-
-static size_t ath10k_debug_fw_stats_num_vdevs(struct list_head *head)
-{
-	struct ath10k_fw_stats_vdev *i;
-	size_t num = 0;
-
-	list_for_each_entry(i, head, list)
-		++num;
-
-	return num;
-}
-
 void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct ath10k_fw_stats stats = {};
@@ -343,8 +327,8 @@ void ath10k_debug_fw_stats_process(struct ath10k *ar, struct sk_buff *skb)
 		goto free;
 	}
 
-	num_peers = ath10k_debug_fw_stats_num_peers(&ar->debug.fw_stats.peers);
-	num_vdevs = ath10k_debug_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
+	num_peers = ath10k_wmi_fw_stats_num_peers(&ar->debug.fw_stats.peers);
+	num_vdevs = ath10k_wmi_fw_stats_num_vdevs(&ar->debug.fw_stats.vdevs);
 	is_start = (list_empty(&ar->debug.fw_stats.pdevs) &&
 		    !list_empty(&stats.pdevs));
 	is_end = (!list_empty(&ar->debug.fw_stats.pdevs) &&
@@ -429,240 +413,6 @@ static int ath10k_debug_fw_stats_request(struct ath10k *ar)
 	return 0;
 }
 
-/* FIXME: How to calculate the buffer size sanely? */
-#define ATH10K_FW_STATS_BUF_SIZE (1024*1024)
-
-static void ath10k_fw_stats_fill(struct ath10k *ar,
-				 struct ath10k_fw_stats *fw_stats,
-				 char *buf)
-{
-	unsigned int len = 0;
-	unsigned int buf_len = ATH10K_FW_STATS_BUF_SIZE;
-	const struct ath10k_fw_stats_pdev *pdev;
-	const struct ath10k_fw_stats_vdev *vdev;
-	const struct ath10k_fw_stats_peer *peer;
-	size_t num_peers;
-	size_t num_vdevs;
-	int i;
-
-	spin_lock_bh(&ar->data_lock);
-
-	pdev = list_first_entry_or_null(&fw_stats->pdevs,
-					struct ath10k_fw_stats_pdev, list);
-	if (!pdev) {
-		ath10k_warn(ar, "failed to get pdev stats\n");
-		goto unlock;
-	}
-
-	num_peers = ath10k_debug_fw_stats_num_peers(&fw_stats->peers);
-	num_vdevs = ath10k_debug_fw_stats_num_vdevs(&fw_stats->vdevs);
-
-	len += scnprintf(buf + len, buf_len - len, "\n");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n",
-			 "ath10k PDEV stats");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
-				 "=================");
-
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Channel noise floor", pdev->ch_noise_floor);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "Channel TX power", pdev->chan_tx_power);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "TX frame count", pdev->tx_frame_count);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "RX frame count", pdev->rx_frame_count);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "RX clear count", pdev->rx_clear_count);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "Cycle count", pdev->cycle_count);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "PHY error count", pdev->phy_err_count);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "RTS bad count", pdev->rts_bad);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "RTS good count", pdev->rts_good);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "FCS bad count", pdev->fcs_bad);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "No beacon count", pdev->no_beacons);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
-			 "MIB int count", pdev->mib_int_count);
-
-	len += scnprintf(buf + len, buf_len - len, "\n");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n",
-			 "ath10k PDEV TX stats");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
-				 "=================");
-
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "HTT cookies queued", pdev->comp_queued);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "HTT cookies disp.", pdev->comp_delivered);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MSDU queued", pdev->msdu_enqued);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MPDU queued", pdev->mpdu_enqued);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MSDUs dropped", pdev->wmm_drop);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Local enqued", pdev->local_enqued);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Local freed", pdev->local_freed);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "HW queued", pdev->hw_queued);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "PPDUs reaped", pdev->hw_reaped);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Num underruns", pdev->underrun);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "PPDUs cleaned", pdev->tx_abort);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MPDUs requed", pdev->mpdus_requed);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Excessive retries", pdev->tx_ko);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "HW rate", pdev->data_rc);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Sched self tiggers", pdev->self_triggers);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Dropped due to SW retries",
-			 pdev->sw_retry_failure);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Illegal rate phy errors",
-			 pdev->illgl_rate_phy_err);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Pdev continous xretry", pdev->pdev_cont_xretry);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "TX timeout", pdev->pdev_tx_timeout);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "PDEV resets", pdev->pdev_resets);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "PHY underrun", pdev->phy_underrun);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MPDU is more than txop limit", pdev->txop_ovf);
-
-	len += scnprintf(buf + len, buf_len - len, "\n");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n",
-			 "ath10k PDEV RX stats");
-	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
-				 "=================");
-
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Mid PPDU route change",
-			 pdev->mid_ppdu_route_change);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Tot. number of statuses", pdev->status_rcvd);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Extra frags on rings 0", pdev->r0_frags);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Extra frags on rings 1", pdev->r1_frags);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Extra frags on rings 2", pdev->r2_frags);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Extra frags on rings 3", pdev->r3_frags);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MSDUs delivered to HTT", pdev->htt_msdus);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MPDUs delivered to HTT", pdev->htt_mpdus);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MSDUs delivered to stack", pdev->loc_msdus);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MPDUs delivered to stack", pdev->loc_mpdus);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "Oversized AMSUs", pdev->oversize_amsdu);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "PHY errors", pdev->phy_errs);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "PHY errors drops", pdev->phy_err_drop);
-	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
-			 "MPDU errors (FCS, MIC, ENC)", pdev->mpdu_errs);
-
-	len += scnprintf(buf + len, buf_len - len, "\n");
-	len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
-			 "ath10k VDEV stats", num_vdevs);
-	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
-				 "=================");
-
-	list_for_each_entry(vdev, &fw_stats->vdevs, list) {
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "vdev id", vdev->vdev_id);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "beacon snr", vdev->beacon_snr);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "data snr", vdev->data_snr);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "num rx frames", vdev->num_rx_frames);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "num rts fail", vdev->num_rts_fail);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "num rts success", vdev->num_rts_success);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "num rx err", vdev->num_rx_err);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "num rx discard", vdev->num_rx_discard);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "num tx not acked", vdev->num_tx_not_acked);
-
-		for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames); i++)
-			len += scnprintf(buf + len, buf_len - len,
-					"%25s [%02d] %u\n",
-					 "num tx frames", i,
-					 vdev->num_tx_frames[i]);
-
-		for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_retries); i++)
-			len += scnprintf(buf + len, buf_len - len,
-					"%25s [%02d] %u\n",
-					 "num tx frames retries", i,
-					 vdev->num_tx_frames_retries[i]);
-
-		for (i = 0 ; i < ARRAY_SIZE(vdev->num_tx_frames_failures); i++)
-			len += scnprintf(buf + len, buf_len - len,
-					"%25s [%02d] %u\n",
-					 "num tx frames failures", i,
-					 vdev->num_tx_frames_failures[i]);
-
-		for (i = 0 ; i < ARRAY_SIZE(vdev->tx_rate_history); i++)
-			len += scnprintf(buf + len, buf_len - len,
-					"%25s [%02d] 0x%08x\n",
-					 "tx rate history", i,
-					 vdev->tx_rate_history[i]);
-
-		for (i = 0 ; i < ARRAY_SIZE(vdev->beacon_rssi_history); i++)
-			len += scnprintf(buf + len, buf_len - len,
-					"%25s [%02d] %u\n",
-					 "beacon rssi history", i,
-					 vdev->beacon_rssi_history[i]);
-
-		len += scnprintf(buf + len, buf_len - len, "\n");
-	}
-
-	len += scnprintf(buf + len, buf_len - len, "\n");
-	len += scnprintf(buf + len, buf_len - len, "%30s (%zu)\n",
-			 "ath10k PEER stats", num_peers);
-	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
-				 "=================");
-
-	list_for_each_entry(peer, &fw_stats->peers, list) {
-		len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
-				 "Peer MAC address", peer->peer_macaddr);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "Peer RSSI", peer->peer_rssi);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "Peer TX rate", peer->peer_tx_rate);
-		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
-				 "Peer RX rate", peer->peer_rx_rate);
-		len += scnprintf(buf + len, buf_len - len, "\n");
-	}
-
-unlock:
-	spin_unlock_bh(&ar->data_lock);
-
-	if (len >= buf_len)
-		buf[len - 1] = 0;
-	else
-		buf[len] = 0;
-}
-
 static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 {
 	struct ath10k *ar = inode->i_private;
@@ -688,7 +438,12 @@ static int ath10k_fw_stats_open(struct inode *inode, struct file *file)
 		goto err_free;
 	}
 
-	ath10k_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
+	ret = ath10k_wmi_fw_stats_fill(ar, &ar->debug.fw_stats, buf);
+	if (ret) {
+		ath10k_warn(ar, "failed to fill fw stats: %d\n", ret);
+		goto err_free;
+	}
+
 	file->private_data = buf;
 
 	mutex_unlock(&ar->conf_mutex);
@@ -1843,6 +1598,233 @@ static const struct file_operations fops_nf_cal_period = {
 	.llseek = default_llseek,
 };
 
+#define ATH10K_TPC_CONFIG_BUF_SIZE	(1024 * 1024)
+
+static int ath10k_debug_tpc_stats_request(struct ath10k *ar)
+{
+	int ret;
+	unsigned long time_left;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	reinit_completion(&ar->debug.tpc_complete);
+
+	ret = ath10k_wmi_pdev_get_tpc_config(ar, WMI_TPC_CONFIG_PARAM);
+	if (ret) {
+		ath10k_warn(ar, "failed to request tpc config: %d\n", ret);
+		return ret;
+	}
+
+	time_left = wait_for_completion_timeout(&ar->debug.tpc_complete,
+						1 * HZ);
+	if (time_left == 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+void ath10k_debug_tpc_stats_process(struct ath10k *ar,
+				    struct ath10k_tpc_stats *tpc_stats)
+{
+	spin_lock_bh(&ar->data_lock);
+
+	kfree(ar->debug.tpc_stats);
+	ar->debug.tpc_stats = tpc_stats;
+	complete(&ar->debug.tpc_complete);
+
+	spin_unlock_bh(&ar->data_lock);
+}
+
+static void ath10k_tpc_stats_print(struct ath10k_tpc_stats *tpc_stats,
+				   unsigned int j, char *buf, unsigned int *len)
+{
+	unsigned int i, buf_len;
+	static const char table_str[][5] = { "CDD",
+					     "STBC",
+					     "TXBF" };
+	static const char pream_str[][6] = { "CCK",
+					     "OFDM",
+					     "HT20",
+					     "HT40",
+					     "VHT20",
+					     "VHT40",
+					     "VHT80",
+					     "HTCUP" };
+
+	buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
+	*len += scnprintf(buf + *len, buf_len - *len,
+			  "********************************\n");
+	*len += scnprintf(buf + *len, buf_len - *len,
+			  "******************* %s POWER TABLE ****************\n",
+			  table_str[j]);
+	*len += scnprintf(buf + *len, buf_len - *len,
+			  "********************************\n");
+	*len += scnprintf(buf + *len, buf_len - *len,
+			  "No.  Preamble Rate_code tpc_value1 tpc_value2 tpc_value3\n");
+
+	for (i = 0; i < tpc_stats->rate_max; i++) {
+		*len += scnprintf(buf + *len, buf_len - *len,
+				  "%8d %s 0x%2x %s\n", i,
+				  pream_str[tpc_stats->tpc_table[j].pream_idx[i]],
+				  tpc_stats->tpc_table[j].rate_code[i],
+				  tpc_stats->tpc_table[j].tpc_value[i]);
+	}
+
+	*len += scnprintf(buf + *len, buf_len - *len,
+			  "***********************************\n");
+}
+
+static void ath10k_tpc_stats_fill(struct ath10k *ar,
+				  struct ath10k_tpc_stats *tpc_stats,
+				  char *buf)
+{
+	unsigned int len, j, buf_len;
+
+	len = 0;
+	buf_len = ATH10K_TPC_CONFIG_BUF_SIZE;
+
+	spin_lock_bh(&ar->data_lock);
+
+	if (!tpc_stats) {
+		ath10k_warn(ar, "failed to get tpc stats\n");
+		goto unlock;
+	}
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len,
+			 "*************************************\n");
+	len += scnprintf(buf + len, buf_len - len,
+			 "TPC config for channel %4d mode %d\n",
+			 tpc_stats->chan_freq,
+			 tpc_stats->phy_mode);
+	len += scnprintf(buf + len, buf_len - len,
+			 "*************************************\n");
+	len += scnprintf(buf + len, buf_len - len,
+			 "CTL		=  0x%2x Reg. Domain		= %2d\n",
+			 tpc_stats->ctl,
+			 tpc_stats->reg_domain);
+	len += scnprintf(buf + len, buf_len - len,
+			 "Antenna Gain	= %2d Reg. Max Antenna Gain	=  %2d\n",
+			 tpc_stats->twice_antenna_gain,
+			 tpc_stats->twice_antenna_reduction);
+	len += scnprintf(buf + len, buf_len - len,
+			 "Power Limit	= %2d Reg. Max Power		= %2d\n",
+			 tpc_stats->power_limit,
+			 tpc_stats->twice_max_rd_power / 2);
+	len += scnprintf(buf + len, buf_len - len,
+			 "Num tx chains	= %2d Num supported rates	= %2d\n",
+			 tpc_stats->num_tx_chain,
+			 tpc_stats->rate_max);
+
+	for (j = 0; j < tpc_stats->num_tx_chain ; j++) {
+		switch (j) {
+		case WMI_TPC_TABLE_TYPE_CDD:
+			if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
+				len += scnprintf(buf + len, buf_len - len,
+						 "CDD not supported\n");
+				break;
+			}
+
+			ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
+			break;
+		case WMI_TPC_TABLE_TYPE_STBC:
+			if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
+				len += scnprintf(buf + len, buf_len - len,
+						 "STBC not supported\n");
+				break;
+			}
+
+			ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
+			break;
+		case WMI_TPC_TABLE_TYPE_TXBF:
+			if (tpc_stats->flag[j] == ATH10K_TPC_TABLE_TYPE_FLAG) {
+				len += scnprintf(buf + len, buf_len - len,
+						 "TXBF not supported\n***************************\n");
+				break;
+			}
+
+			ath10k_tpc_stats_print(tpc_stats, j, buf, &len);
+			break;
+		default:
+			len += scnprintf(buf + len, buf_len - len,
+					 "Invalid Type\n");
+			break;
+		}
+	}
+
+unlock:
+	spin_unlock_bh(&ar->data_lock);
+
+	if (len >= buf_len)
+		buf[len - 1] = 0;
+	else
+		buf[len] = 0;
+}
+
+static int ath10k_tpc_stats_open(struct inode *inode, struct file *file)
+{
+	struct ath10k *ar = inode->i_private;
+	void *buf = NULL;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (ar->state != ATH10K_STATE_ON) {
+		ret = -ENETDOWN;
+		goto err_unlock;
+	}
+
+	buf = vmalloc(ATH10K_TPC_CONFIG_BUF_SIZE);
+	if (!buf) {
+		ret = -ENOMEM;
+		goto err_unlock;
+	}
+
+	ret = ath10k_debug_tpc_stats_request(ar);
+	if (ret) {
+		ath10k_warn(ar, "failed to request tpc config stats: %d\n",
+			    ret);
+		goto err_free;
+	}
+
+	ath10k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
+	file->private_data = buf;
+
+	mutex_unlock(&ar->conf_mutex);
+	return 0;
+
+err_free:
+	vfree(buf);
+
+err_unlock:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_tpc_stats_release(struct inode *inode, struct file *file)
+{
+	vfree(file->private_data);
+
+	return 0;
+}
+
+static ssize_t ath10k_tpc_stats_read(struct file *file, char __user *user_buf,
+				     size_t count, loff_t *ppos)
+{
+	const char *buf = file->private_data;
+	unsigned int len = strlen(buf);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_tpc_stats = {
+	.open = ath10k_tpc_stats_open,
+	.release = ath10k_tpc_stats_release,
+	.read = ath10k_tpc_stats_read,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 int ath10k_debug_start(struct ath10k *ar)
 {
 	int ret;
@@ -2111,6 +2093,8 @@ void ath10k_debug_destroy(struct ath10k *ar)
 	ar->debug.fw_crash_data = NULL;
 
 	ath10k_debug_fw_stats_reset(ar);
+
+	kfree(ar->debug.tpc_stats);
 }
 
 int ath10k_debug_register(struct ath10k *ar)
@@ -2127,6 +2111,7 @@ int ath10k_debug_register(struct ath10k *ar)
 	INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
 			  ath10k_debug_htt_stats_dwork);
 
+	init_completion(&ar->debug.tpc_complete);
 	init_completion(&ar->debug.fw_stats_complete);
 
 	debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
@@ -2195,6 +2180,9 @@ int ath10k_debug_register(struct ath10k *ar)
 	debugfs_create_file("quiet_period", S_IRUGO | S_IWUSR,
 			    ar->debug.debugfs_phy, ar, &fops_quiet_period);
 
+	debugfs_create_file("tpc_stats", S_IRUSR,
+			    ar->debug.debugfs_phy, ar, &fops_tpc_stats);
+
 	return 0;
 }