[PATCH 1/4] ath10k: Add support to configure pktlog filter
Rajkumar Manoharan
rmanohar at qti.qualcomm.com
Thu Oct 2 05:12:11 PDT 2014
Add support to configure packet log filters (tx, rx, rate control)
via debugfs. To disable htt pktlog events set the filters to 0.
ex:
To enable pktlog for all filters
echo 0x1f > /sys/kernel/debug/ieee80211/phy*/ath10k/pktlog_filter
To disable pktlog
echo 0 > /sys/kernel/debug/ieee80211/phy*/ath10k/pktlog_filter
Signed-off-by: Rajkumar Manoharan <rmanohar at qti.qualcomm.com>
---
drivers/net/wireless/ath/ath10k/core.h | 2 ++
drivers/net/wireless/ath/ath10k/debug.c | 63 ++++++++++++++++++++++++++++++++-
drivers/net/wireless/ath/ath10k/debug.h | 9 +++++
drivers/net/wireless/ath/ath10k/wmi.c | 33 +++++++++++++++++
drivers/net/wireless/ath/ath10k/wmi.h | 6 ++++
5 files changed, 112 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 674e38c..f361226 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -302,7 +302,9 @@ struct ath10k_debug {
struct ath10k_dfs_stats dfs_stats;
struct ath_dfs_pool_stats dfs_pool_stats;
+ /* protected by conf_mutex */
u32 fw_dbglog_mask;
+ u32 pktlog_filter;
u8 htt_max_amsdu;
u8 htt_max_ampdu;
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 680d508..48672da 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1195,7 +1195,17 @@ int ath10k_debug_start(struct ath10k *ar)
ret);
}
- return 0;
+ if (ar->debug.pktlog_filter)
+ ret = ath10k_wmi_pdev_pktlog_enable(ar,
+ ar->debug.pktlog_filter);
+ else
+ ret = ath10k_wmi_pdev_pktlog_disable(ar);
+
+ if (ret)
+ ath10k_warn(ar, "failed to send pktlog command: %d filter %x",
+ ret, ar->debug.pktlog_filter);
+
+ return ret;
}
void ath10k_debug_stop(struct ath10k *ar)
@@ -1292,6 +1302,54 @@ static const struct file_operations fops_dfs_stats = {
.llseek = default_llseek,
};
+static ssize_t ath10k_write_pktlog_filter(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath10k *ar = file->private_data;
+ u32 filter;
+ int ret;
+
+ if (kstrtouint_from_user(ubuf, count, 0, &filter))
+ return -EINVAL;
+
+ mutex_lock(&ar->conf_mutex);
+ if (filter && (filter != ar->debug.pktlog_filter))
+ ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
+ else
+ ret = ath10k_wmi_pdev_pktlog_disable(ar);
+
+ ar->debug.pktlog_filter = filter;
+ mutex_unlock(&ar->conf_mutex);
+
+ if (ret)
+ ath10k_warn(ar, "failed to send pktlog command: %d filter %x",
+ ret, ar->debug.pktlog_filter);
+
+ return count;
+}
+
+static ssize_t ath10k_read_pktlog_filter(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[32];
+ struct ath10k *ar = file->private_data;
+ int len = 0;
+
+ mutex_lock(&ar->conf_mutex);
+ len = scnprintf(buf, sizeof(buf) - len, "%08x\n",
+ ar->debug.pktlog_filter);
+ mutex_unlock(&ar->conf_mutex);
+
+ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_pktlog_filter = {
+ .read = ath10k_read_pktlog_filter,
+ .write = ath10k_write_pktlog_filter,
+ .open = simple_open
+};
+
int ath10k_debug_create(struct ath10k *ar)
{
ar->debug.fw_crash_data = vzalloc(sizeof(*ar->debug.fw_crash_data));
@@ -1370,6 +1428,9 @@ int ath10k_debug_register(struct ath10k *ar)
&fops_dfs_stats);
}
+ debugfs_create_file("pktlog_filter", S_IRUGO | S_IWUSR,
+ ar->debug.debugfs_phy, ar, &fops_pktlog_filter);
+
return 0;
}
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index efbcd29..794e6bb 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -38,6 +38,15 @@ enum ath10k_debug_mask {
ATH10K_DBG_ANY = 0xffffffff,
};
+enum ath10k_pktlog_filter {
+ ATH10K_PKTLOG_RX = 0x000000001,
+ ATH10K_PKTLOG_TX = 0x000000002,
+ ATH10K_PKTLOG_RCFIND = 0x000000004,
+ ATH10K_PKTLOG_RCUPDATE = 0x000000008,
+ ATH10K_PKTLOG_DBG_PRINT = 0x000000010,
+ ATH10K_PKTLOG_ANY = 0x00000001f,
+};
+
extern unsigned int ath10k_debug_mask;
__printf(2, 3) void ath10k_info(struct ath10k *ar, const char *fmt, ...);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index f65032f..c145b98 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4345,6 +4345,39 @@ int ath10k_wmi_dbglog_cfg(struct ath10k *ar, u32 module_enable)
return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->dbglog_cfg_cmdid);
}
+int ath10k_wmi_pdev_pktlog_enable(struct ath10k *ar, u32 ev_bitmap)
+{
+ struct wmi_pdev_pktlog_enable_cmd *cmd;
+ struct sk_buff *skb;
+
+ skb = ath10k_wmi_alloc_skb(ar, sizeof(*cmd));
+ if (!skb)
+ return -ENOMEM;
+
+ ev_bitmap &= ATH10K_PKTLOG_ANY;
+ ath10k_dbg(ar, ATH10K_DBG_WMI,
+ "wmi enable pktlog filter:%x\n", ev_bitmap);
+
+ cmd = (struct wmi_pdev_pktlog_enable_cmd *)skb->data;
+ cmd->ev_bitmap = __cpu_to_le32(ev_bitmap);
+ return ath10k_wmi_cmd_send(ar, skb,
+ ar->wmi.cmd->pdev_pktlog_enable_cmdid);
+}
+
+int ath10k_wmi_pdev_pktlog_disable(struct ath10k *ar)
+{
+ struct sk_buff *skb;
+
+ skb = ath10k_wmi_alloc_skb(ar, 0);
+ if (!skb)
+ return -ENOMEM;
+
+ ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi disable pktlog\n");
+
+ return ath10k_wmi_cmd_send(ar, skb,
+ ar->wmi.cmd->pdev_pktlog_disable_cmdid);
+}
+
int ath10k_wmi_attach(struct ath10k *ar)
{
if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 6243dbe..a38d788 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2787,6 +2787,10 @@ struct wmi_pdev_set_channel_cmd {
struct wmi_channel chan;
} __packed;
+struct wmi_pdev_pktlog_enable_cmd {
+ __le32 ev_bitmap;
+} __packed;
+
/* Customize the DSCP (bit) to TID (0-7) mapping for QOS */
#define WMI_DSCP_MAP_MAX (64)
struct wmi_pdev_set_dscp_tid_map_cmd {
@@ -4647,5 +4651,7 @@ int ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *skb);
int ath10k_wmi_dbglog_cfg(struct ath10k *ar, u32 module_enable);
int ath10k_wmi_pull_fw_stats(struct ath10k *ar, struct sk_buff *skb,
struct ath10k_fw_stats *stats);
+int ath10k_wmi_pdev_pktlog_enable(struct ath10k *ar, u32 ev_list);
+int ath10k_wmi_pdev_pktlog_disable(struct ath10k *ar);
#endif /* _WMI_H_ */
--
2.1.1
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