wlan-ap-Telecominfraproject/feeds/ipq807x/mac80211/patches/012-ath11k-add-pktlog-debugfs-support.patch

--- a/drivers/net/wireless/ath/ath11k/Kconfig
+++ b/drivers/net/wireless/ath/ath11k/Kconfig
@@ -34,3 +34,12 @@ config ATH11K_TRACING
 	depends on ATH11K && EVENT_TRACING
 	---help---
 	  Select this to use ath11k tracing infrastructure.
+
+config ATH11K_PKTLOG
+	bool "ath11k packet logging support"
+	depends on ATH11K_DEBUGFS
+	---help---
+	Say Y to dump frame information during frame transmission
+	and reception, rate information and ani state. The packet
+	log uses ring buffer to dump the data. The buffer size,
+	frame filters can be alterted by debugfs entries.
--- a/drivers/net/wireless/ath/ath11k/Makefile
+++ b/drivers/net/wireless/ath/ath11k/Makefile
@@ -21,6 +21,7 @@ ath11k-$(CPTCFG_ATH11K_DEBUGFS) += debug
 ath11k-$(CPTCFG_NL80211_TESTMODE) += testmode.o
 ath11k-$(CPTCFG_ATH11K_TRACING) += trace.o
 ath11k-$(CONFIG_THERMAL) += thermal.o
+ath11k-$(CPTCFG_ATH11K_PKTLOG) += pktlog.o
 
 # for tracing framework to find trace.h
 CFLAGS_trace.o := -I$(src)
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -12,6 +12,7 @@
 #include <linux/bitfield.h>
 #include "qmi.h"
 #include "htc.h"
+#include "pktlog.h"
 #include "wmi.h"
 #include "hal.h"
 #include "dp.h"
@@ -392,6 +393,11 @@ struct ath11k_debug {
 	u32 pktlog_mode;
 	u32 pktlog_peer_valid;
 	u8 pktlog_peer_addr[ETH_ALEN];
+#ifdef CPTCFG_ATH11K_PKTLOG
+	struct dentry *debugfs_pktlog;
+	struct ath_pktlog pktlog;
+	bool is_pkt_logging;
+#endif
 	u32 rx_filter;
 };
 
--- a/drivers/net/wireless/ath/ath11k/debug.c
+++ b/drivers/net/wireless/ath/ath11k/debug.c
@@ -11,6 +11,7 @@
 #include "dp_tx.h"
 #include "debug_htt_stats.h"
 #include "peer.h"
+#include "pktlog.h"
 
 void ath11k_info(struct ath11k_base *ab, const char *fmt, ...)
 {
@@ -1051,6 +1052,7 @@ int ath11k_debug_register(struct ath11k
 	ath11k_debug_htt_stats_init(ar);
 
 	ath11k_debug_fw_stats_init(ar);
+	ath11k_init_pktlog(ar);
 
 	debugfs_create_file("ext_tx_stats", 0644,
 			    ar->debug.debugfs_pdev, ar,
@@ -1076,5 +1078,6 @@ int ath11k_debug_register(struct ath11k
 
 void ath11k_debug_unregister(struct ath11k *ar)
 {
+	ath11k_deinit_pktlog(ar);
 }
 #endif /* CPTCFG_ATH11K_DEBUGFS */
--- a/drivers/net/wireless/ath/ath11k/debug.h
+++ b/drivers/net/wireless/ath/ath11k/debug.h
@@ -301,4 +301,39 @@ do {								\
 		__ath11k_dbg(ar, dbg_mask, fmt, ##__VA_ARGS__);	\
 } while (0)
 
+
+#ifdef CPTCFG_ATH11K_PKTLOG
+void ath11k_init_pktlog(struct ath11k *ar);
+void ath11k_deinit_pktlog(struct ath11k *ar);
+void ath11k_htt_pktlog_process(struct ath11k *ar, u8 *data);
+void ath11k_htt_ppdu_pktlog_process(struct ath11k *ar, u8 *data, u32 len);
+void ath11k_rx_stats_buf_pktlog_process(struct ath11k *ar, u8 *data, u16 log_type, u32 len);
+
+#else /* CPTCFG_ATH11K_PKTLOG */
+static inline void ath11k_init_pktlog(struct ath11k *ar)
+{
+}
+
+static inline void ath11k_deinit_pktlog(struct ath11k *ar)
+{
+}
+
+static inline void ath11k_htt_pktlog_process(struct ath11k *ar,
+					     u8 *data)
+{
+}
+
+static inline void ath11k_htt_ppdu_pktlog_process(struct ath11k *ar,
+						  u8 *data, u32 len)
+{
+}
+
+static inline void ath11k_pktlog_rx(struct ath11k *ar, struct sk_buff_head *amsdu)
+{
+}
+static inline void ath11k_rx_stats_buf_pktlog_process(struct ath11k *ar,
+						       u8 *data, u16 log_type, u32 len)
+{
+}
+#endif /* CONFIG_ATH11K_PKTLOG */
 #endif /* _ATH11K_DEBUG_H_ */
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1453,8 +1453,10 @@ static int ath11k_htt_pull_ppdu_stats(st
 		goto exit;
 	}
 
-	if (ath11k_debug_is_pktlog_lite_mode_enabled(ar))
+	if (ath11k_debug_is_pktlog_lite_mode_enabled(ar)) {
 		trace_ath11k_htt_ppdu_stats(ar, skb->data, len);
+		ath11k_htt_ppdu_pktlog_process(ar, (u8 *)skb->data, DP_RX_BUFFER_SIZE);
+	}
 
 	ppdu_info = ath11k_dp_htt_get_ppdu_desc(ar, ppdu_id);
 	if (!ppdu_info) {
@@ -1493,6 +1495,7 @@ static void ath11k_htt_pktlog(struct ath
 
 	trace_ath11k_htt_pktlog(ar, data->payload, hdr->size,
 				ar->ab->pktlog_defs_checksum);
+	ath11k_htt_pktlog_process(ar, (u8 *)data->payload);
 }
 
 static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab,
@@ -2792,8 +2795,11 @@ int ath11k_dp_rx_process_mon_status(stru
 		memset(&ppdu_info, 0, sizeof(ppdu_info));
 		ppdu_info.peer_id = HAL_INVALID_PEERID;
 
-		if (ath11k_debug_is_pktlog_rx_stats_enabled(ar))
+		if (ath11k_debug_is_pktlog_rx_stats_enabled(ar)) {
 			trace_ath11k_htt_rxdesc(ar, skb->data, DP_RX_BUFFER_SIZE);
+			ath11k_rx_stats_buf_pktlog_process(ar, skb->data,
+							   DP_RX_BUFFER_SIZE);
+		}
 
 		hal_status = ath11k_hal_rx_parse_mon_status(ab, &ppdu_info, skb);
 
@@ -2820,8 +2826,11 @@ int ath11k_dp_rx_process_mon_status(stru
 		arsta = (struct ath11k_sta *)peer->sta->drv_priv;
 		ath11k_dp_rx_update_peer_stats(arsta, &ppdu_info);
 
-		if (ath11k_debug_is_pktlog_peer_valid(ar, peer->addr))
+		if (ath11k_debug_is_pktlog_peer_valid(ar, peer->addr)) {
 			trace_ath11k_htt_rxdesc(ar, skb->data, DP_RX_BUFFER_SIZE);
+			ath11k_rx_stats_buf_pktlog_process(ar, skb->data,
+							   DP_RX_BUFFER_SIZE);
+		}
 
 		spin_unlock_bh(&ab->base_lock);
 		rcu_read_unlock();
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/pktlog.c
@@ -0,0 +1,537 @@
+
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/vmalloc.h>
+#include "core.h"
+#include "wmi.h"
+#include "debug.h"
+
+static struct page *pktlog_virt_to_logical(void *addr)
+{
+	struct page *page;
+	unsigned long vpage = 0UL;
+
+	page = vmalloc_to_page(addr);
+	if (page) {
+		vpage = (unsigned long)page_address(page);
+		vpage |= ((unsigned long)addr & (PAGE_SIZE - 1));
+	}
+	return virt_to_page((void *)vpage);
+}
+
+static void ath_pktlog_release(struct ath_pktlog *pktlog)
+{
+	unsigned long page_cnt, vaddr;
+	struct page *page;
+
+	page_cnt =
+		((sizeof(*pktlog->buf) +
+		pktlog->buf_size) / PAGE_SIZE) + 1;
+
+	for (vaddr = (unsigned long)(pktlog->buf); vaddr <
+			(unsigned long)(pktlog->buf) +
+			(page_cnt * PAGE_SIZE);
+			vaddr += PAGE_SIZE) {
+		page = pktlog_virt_to_logical((void *)vaddr);
+		clear_bit(PG_reserved, &page->flags);
+	}
+
+	vfree(pktlog->buf);
+	pktlog->buf = NULL;
+}
+
+static int ath_alloc_pktlog_buf(struct ath11k *ar)
+{
+	u32 page_cnt;
+	unsigned long vaddr;
+	struct page *page;
+	struct ath_pktlog *pktlog = &ar->debug.pktlog;
+
+	if (pktlog->buf_size == 0)
+		return -EINVAL;
+
+	page_cnt = (sizeof(*pktlog->buf) +
+		    pktlog->buf_size) / PAGE_SIZE;
+
+	pktlog->buf =  vmalloc((page_cnt + 2) * PAGE_SIZE);
+	if (!pktlog->buf)
+		return -ENOMEM;
+
+	pktlog->buf = (struct ath_pktlog_buf *)
+				     (((unsigned long)
+				      (pktlog->buf)
+				     + PAGE_SIZE - 1) & PAGE_MASK);
+
+	for (vaddr = (unsigned long)(pktlog->buf);
+		      vaddr < ((unsigned long)(pktlog->buf)
+		      + (page_cnt * PAGE_SIZE)); vaddr += PAGE_SIZE) {
+		page = pktlog_virt_to_logical((void *)vaddr);
+		set_bit(PG_reserved, &page->flags);
+	}
+
+	return 0;
+}
+
+static void ath_init_pktlog_buf(struct ath11k *ar, struct ath_pktlog *pktlog)
+{
+	if (!ar->ab->pktlog_defs_checksum) {
+		pktlog->buf->bufhdr.magic_num = PKTLOG_MAGIC_NUM;
+		pktlog->buf->bufhdr.version = CUR_PKTLOG_VER;
+	} else {
+		pktlog->buf->bufhdr.magic_num = PKTLOG_NEW_MAGIC_NUM;
+		pktlog->buf->bufhdr.version = ar->ab->pktlog_defs_checksum;
+	}
+	pktlog->buf->rd_offset = -1;
+	pktlog->buf->wr_offset = 0;
+}
+
+static inline void ath_pktlog_mov_rd_idx(struct ath_pktlog *pl_info,
+					 int32_t *rd_offset)
+{
+	int32_t boundary;
+	struct ath_pktlog_buf *log_buf = pl_info->buf;
+	struct ath_pktlog_hdr *log_hdr;
+
+	log_hdr = (struct ath_pktlog_hdr *)(log_buf->log_data + *rd_offset);
+	boundary = *rd_offset;
+	boundary += pl_info->hdr_size;
+	boundary += log_hdr->size;
+
+	if (boundary <= pl_info->buf_size)
+		*rd_offset = boundary;
+	else
+		*rd_offset = log_hdr->size;
+
+	if ((pl_info->buf_size - *rd_offset) < pl_info->hdr_size)
+		*rd_offset = 0;
+}
+
+static char *ath_pktlog_getbuf(struct ath_pktlog *pl_info,
+			       struct ath_pktlog_hdr_arg *hdr_arg)
+{
+	struct ath_pktlog_buf *log_buf;
+	int32_t cur_wr_offset, buf_size;
+	char *log_ptr;
+
+	log_buf = pl_info->buf;
+	buf_size = pl_info->buf_size;
+
+	spin_lock_bh(&pl_info->lock);
+	cur_wr_offset = log_buf->wr_offset;
+	/* Move read offset to the next entry if there is a buffer overlap */
+	if (log_buf->rd_offset >= 0) {
+		if ((cur_wr_offset <= log_buf->rd_offset) &&
+		    (cur_wr_offset + pl_info->hdr_size) >
+		     log_buf->rd_offset)
+			ath_pktlog_mov_rd_idx(pl_info, &log_buf->rd_offset);
+	} else {
+		log_buf->rd_offset = cur_wr_offset;
+	}
+
+	memcpy(&log_buf->log_data[cur_wr_offset],
+	       hdr_arg->pktlog_hdr, pl_info->hdr_size);
+
+	cur_wr_offset += pl_info->hdr_size;
+
+	if ((buf_size - cur_wr_offset) < hdr_arg->payload_size) {
+		while ((cur_wr_offset <= log_buf->rd_offset) &&
+		       (log_buf->rd_offset < buf_size))
+			  ath_pktlog_mov_rd_idx(pl_info, &log_buf->rd_offset);
+		cur_wr_offset = 0;
+	}
+
+	while ((cur_wr_offset <= log_buf->rd_offset) &&
+	       ((cur_wr_offset + hdr_arg->payload_size) > log_buf->rd_offset))
+			  ath_pktlog_mov_rd_idx(pl_info, &log_buf->rd_offset);
+
+	log_ptr = &log_buf->log_data[cur_wr_offset];
+	cur_wr_offset += hdr_arg->payload_size;
+
+	log_buf->wr_offset =
+		((buf_size - cur_wr_offset) >=
+		 pl_info->hdr_size) ? cur_wr_offset : 0;
+	spin_unlock_bh(&pl_info->lock);
+
+	return log_ptr;
+}
+
+static int  pktlog_pgfault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	unsigned long address = (unsigned long)vmf->virtual_address;
+
+	if (address == 0UL)
+		return VM_FAULT_NOPAGE;
+
+	if (vmf->pgoff > vma->vm_end)
+		return VM_FAULT_SIGBUS;
+
+	get_page(virt_to_page(address));
+	vmf->page = virt_to_page(address);
+	return VM_FAULT_MINOR;
+}
+
+static struct vm_operations_struct pktlog_vmops = {
+	.fault = pktlog_pgfault
+};
+
+static int ath_pktlog_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct ath11k *ar = file->private_data;
+
+	/* entire buffer should be mapped */
+	if (vma->vm_pgoff != 0)
+		return -EINVAL;
+
+	if (!ar->debug.pktlog.buf) {
+		pr_err("Can't allocate pktlog buf\n");
+		return -ENOMEM;
+	}
+
+	vma->vm_flags |= VM_LOCKED;
+	vma->vm_ops = &pktlog_vmops;
+
+	return 0;
+}
+
+static ssize_t ath_pktlog_read(struct file *file, char __user *userbuf,
+			       size_t count, loff_t *ppos)
+{
+	size_t bufhdr_size;
+	size_t nbytes = 0, ret_val = 0;
+	int rem_len;
+	int start_offset, end_offset;
+	int fold_offset, ppos_data, cur_rd_offset;
+	struct ath11k *ar = file->private_data;
+	struct ath_pktlog *info = &ar->debug.pktlog;
+	struct ath_pktlog_buf *log_buf = info->buf;
+
+	if (log_buf == NULL)
+		return 0;
+
+	bufhdr_size = sizeof(log_buf->bufhdr);
+
+	/* copy valid log entries from circular buffer into user space */
+	rem_len = count;
+
+	nbytes = 0;
+
+	if (*ppos < bufhdr_size) {
+		nbytes = min((int)(bufhdr_size -  *ppos), rem_len);
+		if (copy_to_user(userbuf,
+				 ((char *)&log_buf->bufhdr) + *ppos, nbytes))
+			return -EFAULT;
+		rem_len -= nbytes;
+		ret_val += nbytes;
+	}
+
+	spin_lock_bh(&info->lock);
+
+	start_offset = log_buf->rd_offset;
+
+	if ((rem_len == 0) || (start_offset < 0))
+		goto read_done;
+
+	fold_offset = -1;
+	cur_rd_offset = start_offset;
+
+	/* Find the last offset and fold-offset if the buffer is folded */
+	do {
+		int log_data_offset;
+		struct ath_pktlog_hdr *log_hdr;
+
+		log_hdr = (struct ath_pktlog_hdr *)(log_buf->log_data + cur_rd_offset);
+		log_data_offset = cur_rd_offset + info->hdr_size;
+
+		if ((fold_offset == -1) &&
+		    ((info->buf_size - log_data_offset) <= log_hdr->size))
+			fold_offset = log_data_offset - 1;
+
+		ath_pktlog_mov_rd_idx(info, &cur_rd_offset);
+
+		if ((fold_offset == -1) && (cur_rd_offset == 0) &&
+		    (cur_rd_offset != log_buf->wr_offset))
+			fold_offset = log_data_offset + log_hdr->size - 1;
+
+		end_offset = log_data_offset + log_hdr->size - 1;
+
+	} while (cur_rd_offset != log_buf->wr_offset);
+
+	ppos_data = *ppos + ret_val - bufhdr_size + start_offset;
+
+	if (fold_offset == -1) {
+		if (ppos_data > end_offset)
+			goto read_done;
+
+		nbytes = min(rem_len, end_offset - ppos_data + 1);
+		if (copy_to_user(userbuf + ret_val,
+				 log_buf->log_data + ppos_data, nbytes)) {
+			ret_val = -EFAULT;
+			goto out;
+		}
+		ret_val += nbytes;
+		rem_len -= nbytes;
+	} else {
+		if (ppos_data <= fold_offset) {
+			nbytes = min(rem_len, fold_offset - ppos_data + 1);
+			if (copy_to_user(userbuf + ret_val,
+					 log_buf->log_data + ppos_data,	nbytes)) {
+				ret_val = -EFAULT;
+				goto out;
+			}
+			ret_val += nbytes;
+			rem_len -= nbytes;
+		}
+
+		if (rem_len == 0)
+			goto read_done;
+
+		ppos_data =
+			*ppos + ret_val - (bufhdr_size +
+					(fold_offset - start_offset + 1));
+
+		if (ppos_data <= end_offset) {
+			nbytes = min(rem_len, end_offset - ppos_data + 1);
+			if (copy_to_user(userbuf + ret_val, log_buf->log_data
+					 + ppos_data,
+					 nbytes)) {
+				ret_val = -EFAULT;
+				goto out;
+			}
+			ret_val += nbytes;
+			rem_len -= nbytes;
+		}
+	}
+
+read_done:
+	*ppos += ret_val;
+out:
+	spin_unlock_bh(&info->lock);
+	return ret_val;
+}
+
+static const struct file_operations fops_pktlog_dump = {
+	.read = ath_pktlog_read,
+	.mmap = ath_pktlog_mmap,
+	.open = simple_open
+};
+
+static ssize_t write_pktlog_start(struct file *file, const char __user *ubuf,
+				  size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	struct ath_pktlog *pktlog = &ar->debug.pktlog;
+	u32 start_pktlog;
+	int err;
+
+	err = kstrtou32_from_user(ubuf, count, 0, &start_pktlog);
+	if (err)
+		return err;
+
+	if (ar->debug.is_pkt_logging && start_pktlog) {
+		pr_err("packet logging is inprogress\n");
+		return -EINVAL;
+	}
+	if (start_pktlog) {
+		if (pktlog->buf != NULL)
+			ath_pktlog_release(pktlog);
+
+		err = ath_alloc_pktlog_buf(ar);
+		if (err != 0)
+			return err;
+
+		ath_init_pktlog_buf(ar, pktlog);
+		ar->debug.is_pkt_logging = 1;
+	} else {
+		ar->debug.is_pkt_logging = 0;
+	}
+
+	return count;
+}
+
+static ssize_t read_pktlog_start(struct file *file, char __user *ubuf,
+				 size_t count, loff_t *ppos)
+{
+	char buf[32];
+	struct ath11k *ar = file->private_data;
+	int len = 0;
+
+	len = scnprintf(buf, sizeof(buf) - len, "%d\n",
+			ar->debug.is_pkt_logging);
+	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_pktlog_start = {
+	.read = read_pktlog_start,
+	.write = write_pktlog_start,
+	.open = simple_open
+};
+
+static ssize_t pktlog_size_write(struct file *file, const char __user *ubuf,
+				 size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	u32 pktlog_size;
+
+	if (kstrtou32_from_user(ubuf, count, 0, &pktlog_size))
+		return -EINVAL;
+
+	if (pktlog_size == ar->debug.pktlog.buf_size)
+		return count;
+
+	if (ar->debug.is_pkt_logging) {
+		pr_debug("Stop packet logging before changing the size\n");
+		return -EINVAL;
+	}
+
+	ar->debug.pktlog.buf_size = pktlog_size;
+
+	return count;
+}
+
+static ssize_t pktlog_size_read(struct file *file, char __user *ubuf,
+				size_t count, loff_t *ppos)
+{
+	char buf[32];
+	struct ath11k *ar = file->private_data;
+	int len = 0;
+
+	len = scnprintf(buf, sizeof(buf) - len, "%uL\n",
+			ar->debug.pktlog.buf_size);
+	return simple_read_from_buffer(ubuf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_pktlog_size = {
+	.read = pktlog_size_read,
+	.write = pktlog_size_write,
+	.open = simple_open
+};
+
+static void ath_pktlog_init(struct ath11k *ar)
+{
+	struct ath_pktlog *pktlog = &ar->debug.pktlog;
+
+	spin_lock_init(&pktlog->lock);
+	pktlog->buf_size = ATH_DEBUGFS_PKTLOG_SIZE_DEFAULT;
+	pktlog->buf = NULL;
+
+	pktlog->hdr_size = sizeof(struct ath_pktlog_hdr);
+	pktlog->hdr_size_field_offset =
+		   offsetof(struct ath_pktlog_hdr, size);
+}
+
+void ath11k_init_pktlog(struct ath11k *ar)
+{
+	ar->debug.debugfs_pktlog = debugfs_create_dir("pktlog",
+						      ar->debug.debugfs_pdev);
+	debugfs_create_file("start", S_IRUGO | S_IWUSR,
+			    ar->debug.debugfs_pktlog, ar, &fops_pktlog_start);
+	debugfs_create_file("size", S_IRUGO | S_IWUSR,
+			    ar->debug.debugfs_pktlog, ar, &fops_pktlog_size);
+	debugfs_create_file("dump", S_IRUGO | S_IWUSR,
+			    ar->debug.debugfs_pktlog, ar, &fops_pktlog_dump);
+	ath_pktlog_init(ar);
+}
+
+void ath11k_deinit_pktlog(struct ath11k *ar)
+{
+	struct ath_pktlog *pktlog = &ar->debug.pktlog;
+
+	if (pktlog->buf != NULL)
+		ath_pktlog_release(pktlog);
+}
+
+static int ath_pktlog_pull_hdr(struct ath_pktlog_hdr_arg *arg,
+			       u8 *data)
+{
+	struct ath_pktlog_hdr *hdr = (struct ath_pktlog_hdr *)data;
+
+	hdr->flags = __le16_to_cpu(hdr->flags);
+	hdr->missed_cnt = __le16_to_cpu(hdr->missed_cnt);
+	hdr->log_type = __le16_to_cpu(hdr->log_type);
+	hdr->size = __le16_to_cpu(hdr->size);
+	hdr->timestamp = __le32_to_cpu(hdr->timestamp);
+	hdr->type_specific_data = __le32_to_cpu(hdr->type_specific_data);
+
+	arg->log_type = hdr->log_type;
+	arg->payload = hdr->payload;
+	arg->payload_size = hdr->size;
+	arg->pktlog_hdr = data;
+
+	return 0;
+}
+
+static void ath_pktlog_write_buf(struct ath_pktlog *pl_info,
+				 struct ath_pktlog_hdr_arg *hdr_arg)
+{
+	char *log_data;
+
+	log_data = ath_pktlog_getbuf(pl_info, hdr_arg);
+	if (!log_data)
+		return;
+
+	memcpy(log_data, hdr_arg->payload, hdr_arg->payload_size);
+}
+
+void ath11k_htt_pktlog_process(struct ath11k *ar, u8 *data)
+{
+	struct ath_pktlog *pl_info = &ar->debug.pktlog;
+	struct ath_pktlog_hdr_arg hdr_arg;
+	int ret;
+
+	if  (!ar->debug.is_pkt_logging)
+		return;
+
+	ret = ath_pktlog_pull_hdr(&hdr_arg, data);
+	if (ret)
+		return;
+
+	ath_pktlog_write_buf(pl_info, &hdr_arg);
+}
+
+void ath11k_htt_ppdu_pktlog_process(struct ath11k *ar, u8 *data, u32 len)
+{
+	struct ath_pktlog *pl_info = &ar->debug.pktlog;
+	struct ath_pktlog_hdr hdr;
+	struct ath_pktlog_hdr_arg hdr_arg;
+
+	if  (!ar->debug.is_pkt_logging)
+		return;
+
+	hdr.flags = (1 << PKTLOG_FLG_FRM_TYPE_REMOTE_S);
+	hdr.missed_cnt = 0;
+	hdr.log_type = ATH11K_PKTLOG_TYPE_PPDU_STATS;
+	hdr.timestamp = 0;
+	hdr.size = len;
+	hdr.type_specific_data = 0;
+
+	hdr_arg.log_type = hdr.log_type;
+	hdr_arg.payload_size = hdr.size;
+	hdr_arg.payload = (u8 *)data;
+	hdr_arg.pktlog_hdr = (u8 *)&hdr;
+
+	ath_pktlog_write_buf(pl_info, &hdr_arg);
+}
+
+void ath11k_rx_stats_buf_pktlog_process(struct ath11k *ar, u8 *data, u16 log_type, u32 len)
+{
+	struct ath_pktlog *pl_info = &ar->debug.pktlog;
+	struct ath_pktlog_hdr hdr;
+	struct ath_pktlog_hdr_arg hdr_arg;
+
+	if  (!ar->debug.is_pkt_logging)
+		return;
+
+	hdr.flags = (1 << PKTLOG_FLG_FRM_TYPE_REMOTE_S);
+	hdr.missed_cnt = 0;
+	hdr.log_type = log_type;
+	hdr.timestamp = 0;
+	hdr.size = len;
+	hdr.type_specific_data = 0;
+
+	hdr_arg.log_type = log_type;
+	hdr_arg.payload_size = len;
+	hdr_arg.payload = data;
+	hdr_arg.pktlog_hdr = (u8 *)&hdr;
+
+	ath_pktlog_write_buf(pl_info, &hdr_arg);
+}
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/pktlog.h
@@ -0,0 +1,56 @@
+#ifndef _PKTLOG_H_
+#define _PKTLOG_H_
+
+#ifdef CPTCFG_ATH11K_PKTLOG
+#define CUR_PKTLOG_VER          10010  /* Packet log version */
+#define PKTLOG_MAGIC_NUM        7735225
+#define PKTLOG_NEW_MAGIC_NUM	2453506
+
+/* Masks for setting pktlog events filters */
+#define ATH_PKTLOG_RX		0x000000001
+#define ATH_PKTLOG_TX		0x000000002
+#define ATH_PKTLOG_RCFIND	0x000000004
+#define ATH_PKTLOG_RCUPDATE	0x000000008
+
+#define ATH_DEBUGFS_PKTLOG_SIZE_DEFAULT (8 * 1024 * 1024)
+#define ATH_PKTLOG_FILTER_DEFAULT (ATH_PKTLOG_TX | ATH_PKTLOG_RX | \
+				   ATH_PKTLOG_RCFIND | ATH_PKTLOG_RCUPDATE)
+
+enum {
+	PKTLOG_FLG_FRM_TYPE_LOCAL_S = 0,
+	PKTLOG_FLG_FRM_TYPE_REMOTE_S,
+	PKTLOG_FLG_FRM_TYPE_CLONE_S,
+	PKTLOG_FLG_FRM_TYPE_UNKNOWN_S
+};
+
+struct ath_pktlog_hdr_arg {
+	u16 log_type;
+	u8 *payload;
+	u16 payload_size;
+	u8 *pktlog_hdr;
+};
+
+struct ath_pktlog_bufhdr {
+	u32 magic_num;  /* Used by post processing scripts */
+	u32 version;    /* Set to CUR_PKTLOG_VER */
+};
+
+struct ath_pktlog_buf {
+	struct ath_pktlog_bufhdr bufhdr;
+	int rd_offset;
+	int wr_offset;
+	char log_data[0];
+};
+
+struct ath_pktlog {
+	struct ath_pktlog_buf *buf;
+	u32 filter;
+	u32 buf_size;           /* Size of buffer in bytes */
+	spinlock_t lock;
+	u8 hdr_size;
+	u8 hdr_size_field_offset;
+};
+
+#endif /* CONFIG_ATH10K_PKTLOG */
+
+#endif /* _PKTLOG_H_ */
--- a/local-symbols
+++ b/local-symbols
@@ -135,3 +135,4 @@ ATH11K=
 ATH11K_DEBUG=
 ATH11K_DEBUGFS=
 ATH11K_TRACING=
+ATH11K_PKTLOG=