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lede/package/kernel/mac80211/patches/ath11k/0174-ath11k-add-debugfs-for-TWT-debug-calls.patch
lean 66d19a4e36 mac80211: bump to 5.15.33-1
2022-07-08 12:44:37 +08:00

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From fe98a6137d03a9e51db2197674c355d64eb3b709 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Mon, 31 Jan 2022 16:16:44 +0200
Subject: [PATCH] ath11k: add debugfs for TWT debug calls
New debugfs files to manually add/delete/pause/resume TWT
dialogs for test/debug purposes.
The debugfs files expect the following parameters
- Add dialog
echo '<Peer_MAC> <Dialog_ID> <Wake_Interval_Usec> <Wake_Interval_Mantis>
<Wake_Duration_Usec> <First_SP_Offset> <TWT_Command>
<1:Broadcast /0:Individual> <1:Triggered / 0:Untriggered>
<1:Unannounced /0:Announced> <1:Protected / 0:Unprotected>' >
/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/add_dialog
Example (Non-triggered and un-announced):
echo '00:03:7F:20:13:52 1 102400 100 30720 20480 4 0 0 1 0' >
/sys/kernel/debug/ieee80211/phy0/netdev:wlan0/twt/add_dialog
- Delete dialog
echo '<Peer_MAC> <Dialog_ID>' >
/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/del_dialog
- Pause dialog
echo '<Peer_MAC> <Dialog_ID>' >
/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/pause_dialog
- Resume dialog
echo '<Peer_MAC> <Dialog_ID> <SP_Offset_Usec> <Next_TWT_Size>' >
/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/twt/resume_dialog
Example:
echo '00:03:7F:20:13:52 1 2000000 3' >
/sys/kernel/debug/ieee80211/phy0/netdev:wlan0/twt/resume_dialog
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01179-QCAHKSWPL_SILICONZ-1
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220131031043.1295-2-alokad@codeaurora.org
---
drivers/net/wireless/ath/ath11k/core.h | 3 +
drivers/net/wireless/ath/ath11k/debugfs.c | 222 ++++++++++++++++++++++
drivers/net/wireless/ath/ath11k/debugfs.h | 14 +-
drivers/net/wireless/ath/ath11k/mac.c | 7 +
4 files changed, 245 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -263,6 +263,9 @@ struct ath11k_vif {
bool bcca_zero_sent;
bool do_not_send_tmpl;
struct ieee80211_chanctx_conf chanctx;
+#ifdef CPTCFG_ATH11K_DEBUGFS
+ struct dentry *debugfs_twt;
+#endif /* CPTCFG_ATH11K_DEBUGFS */
};
struct ath11k_vif_iter {
--- a/drivers/net/wireless/ath/ath11k/debugfs.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs.c
@@ -1224,3 +1224,225 @@ int ath11k_debugfs_register(struct ath11
void ath11k_debugfs_unregister(struct ath11k *ar)
{
}
+
+static ssize_t ath11k_write_twt_add_dialog(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath11k_vif *arvif = file->private_data;
+ struct wmi_twt_add_dialog_params params = { 0 };
+ u8 buf[128] = {0};
+ int ret;
+
+ if (arvif->ar->twt_enabled == 0) {
+ ath11k_err(arvif->ar->ab, "twt support is not enabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, ubuf, count);
+ if (ret < 0)
+ return ret;
+
+ buf[ret] = '\0';
+ ret = sscanf(buf,
+ "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx %u %u %u %u %u %hhu %hhu %hhu %hhu %hhu",
+ &params.peer_macaddr[0],
+ &params.peer_macaddr[1],
+ &params.peer_macaddr[2],
+ &params.peer_macaddr[3],
+ &params.peer_macaddr[4],
+ &params.peer_macaddr[5],
+ &params.dialog_id,
+ &params.wake_intvl_us,
+ &params.wake_intvl_mantis,
+ &params.wake_dura_us,
+ &params.sp_offset_us,
+ &params.twt_cmd,
+ &params.flag_bcast,
+ &params.flag_trigger,
+ &params.flag_flow_type,
+ &params.flag_protection);
+ if (ret != 16)
+ return -EINVAL;
+
+ params.vdev_id = arvif->vdev_id;
+
+ ret = ath11k_wmi_send_twt_add_dialog_cmd(arvif->ar, &params);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static ssize_t ath11k_write_twt_del_dialog(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath11k_vif *arvif = file->private_data;
+ struct wmi_twt_del_dialog_params params = { 0 };
+ u8 buf[64] = {0};
+ int ret;
+
+ if (arvif->ar->twt_enabled == 0) {
+ ath11k_err(arvif->ar->ab, "twt support is not enabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, ubuf, count);
+ if (ret < 0)
+ return ret;
+
+ buf[ret] = '\0';
+ ret = sscanf(buf, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx %u",
+ &params.peer_macaddr[0],
+ &params.peer_macaddr[1],
+ &params.peer_macaddr[2],
+ &params.peer_macaddr[3],
+ &params.peer_macaddr[4],
+ &params.peer_macaddr[5],
+ &params.dialog_id);
+ if (ret != 7)
+ return -EINVAL;
+
+ params.vdev_id = arvif->vdev_id;
+
+ ret = ath11k_wmi_send_twt_del_dialog_cmd(arvif->ar, &params);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static ssize_t ath11k_write_twt_pause_dialog(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath11k_vif *arvif = file->private_data;
+ struct wmi_twt_pause_dialog_params params = { 0 };
+ u8 buf[64] = {0};
+ int ret;
+
+ if (arvif->ar->twt_enabled == 0) {
+ ath11k_err(arvif->ar->ab, "twt support is not enabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, ubuf, count);
+ if (ret < 0)
+ return ret;
+
+ buf[ret] = '\0';
+ ret = sscanf(buf, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx %u",
+ &params.peer_macaddr[0],
+ &params.peer_macaddr[1],
+ &params.peer_macaddr[2],
+ &params.peer_macaddr[3],
+ &params.peer_macaddr[4],
+ &params.peer_macaddr[5],
+ &params.dialog_id);
+ if (ret != 7)
+ return -EINVAL;
+
+ params.vdev_id = arvif->vdev_id;
+
+ ret = ath11k_wmi_send_twt_pause_dialog_cmd(arvif->ar, &params);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static ssize_t ath11k_write_twt_resume_dialog(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct ath11k_vif *arvif = file->private_data;
+ struct wmi_twt_resume_dialog_params params = { 0 };
+ u8 buf[64] = {0};
+ int ret;
+
+ if (arvif->ar->twt_enabled == 0) {
+ ath11k_err(arvif->ar->ab, "twt support is not enabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ ret = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, ubuf, count);
+ if (ret < 0)
+ return ret;
+
+ buf[ret] = '\0';
+ ret = sscanf(buf, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx %u %u %u",
+ &params.peer_macaddr[0],
+ &params.peer_macaddr[1],
+ &params.peer_macaddr[2],
+ &params.peer_macaddr[3],
+ &params.peer_macaddr[4],
+ &params.peer_macaddr[5],
+ &params.dialog_id,
+ &params.sp_offset_us,
+ &params.next_twt_size);
+ if (ret != 9)
+ return -EINVAL;
+
+ params.vdev_id = arvif->vdev_id;
+
+ ret = ath11k_wmi_send_twt_resume_dialog_cmd(arvif->ar, &params);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static const struct file_operations ath11k_fops_twt_add_dialog = {
+ .write = ath11k_write_twt_add_dialog,
+ .open = simple_open
+};
+
+static const struct file_operations ath11k_fops_twt_del_dialog = {
+ .write = ath11k_write_twt_del_dialog,
+ .open = simple_open
+};
+
+static const struct file_operations ath11k_fops_twt_pause_dialog = {
+ .write = ath11k_write_twt_pause_dialog,
+ .open = simple_open
+};
+
+static const struct file_operations ath11k_fops_twt_resume_dialog = {
+ .write = ath11k_write_twt_resume_dialog,
+ .open = simple_open
+};
+
+int ath11k_debugfs_add_interface(struct ath11k_vif *arvif)
+{
+ if (arvif->vif->type == NL80211_IFTYPE_AP && !arvif->debugfs_twt) {
+ arvif->debugfs_twt = debugfs_create_dir("twt",
+ arvif->vif->debugfs_dir);
+ if (!arvif->debugfs_twt || IS_ERR(arvif->debugfs_twt)) {
+ ath11k_warn(arvif->ar->ab,
+ "failed to create directory %p\n",
+ arvif->debugfs_twt);
+ arvif->debugfs_twt = NULL;
+ return -1;
+ }
+
+ debugfs_create_file("add_dialog", 0200, arvif->debugfs_twt,
+ arvif, &ath11k_fops_twt_add_dialog);
+
+ debugfs_create_file("del_dialog", 0200, arvif->debugfs_twt,
+ arvif, &ath11k_fops_twt_del_dialog);
+
+ debugfs_create_file("pause_dialog", 0200, arvif->debugfs_twt,
+ arvif, &ath11k_fops_twt_pause_dialog);
+
+ debugfs_create_file("resume_dialog", 0200, arvif->debugfs_twt,
+ arvif, &ath11k_fops_twt_resume_dialog);
+ }
+ return 0;
+}
+
+void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif)
+{
+ debugfs_remove_recursive(arvif->debugfs_twt);
+ arvif->debugfs_twt = NULL;
+}
--- a/drivers/net/wireless/ath/ath11k/debugfs.h
+++ b/drivers/net/wireless/ath/ath11k/debugfs.h
@@ -276,6 +276,9 @@ static inline int ath11k_debugfs_rx_filt
return ar->debug.rx_filter;
}
+int ath11k_debugfs_add_interface(struct ath11k_vif *arvif);
+void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif);
+
#else
static inline int ath11k_debugfs_soc_create(struct ath11k_base *ab)
{
@@ -349,6 +352,15 @@ static inline int ath11k_debugfs_get_fw_
return 0;
}
-#endif /* CPTCFG_MAC80211_DEBUGFS*/
+static inline int ath11k_debugfs_add_interface(struct ath11k_vif *arvif)
+{
+ return 0;
+}
+
+static inline void ath11k_debugfs_remove_interface(struct ath11k_vif *arvif)
+{
+}
+
+#endif /* CPTCFG_ATH11K_DEBUGFS*/
#endif /* _ATH11K_DEBUGFS_H_ */
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -6354,6 +6354,10 @@ static int ath11k_mac_op_add_interface(s
}
}
+ ret = ath11k_debugfs_add_interface(arvif);
+ if (ret)
+ goto err_peer_del;
+
mutex_unlock(&ar->conf_mutex);
return 0;
@@ -6388,6 +6392,7 @@ err_vdev_del:
spin_unlock_bh(&ar->data_lock);
err:
+ ath11k_debugfs_remove_interface(arvif);
mutex_unlock(&ar->conf_mutex);
return ret;
@@ -6486,6 +6491,8 @@ err_vdev_del:
/* Recalc txpower for remaining vdev */
ath11k_mac_txpower_recalc(ar);
+ ath11k_debugfs_remove_interface(arvif);
+
/* TODO: recal traffic pause state based on the available vdevs */
mutex_unlock(&ar->conf_mutex);
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