Hello Kalle and all,
Here is the patch set with misc fixes and minor enhancements for
qtnfmac driver. The changes include the following major items:
- get_tx_power/set_tx_power cfg80211 callback
- report MIC failure events to wireless core
- fix for 'use after free' error reported by KASAN
Regards,
Sergey
Mikhail Karpenko (1):
qtnfmac: add support for getting/setting transmit power
Sergey Matyukevich (6):
qtnfmac: fix using skb after free
qtnfmac: fix debugfs support for multiple cards
qtnfmac: fix invalid channel information output
qtnfmac: modify Rx descriptors queue setup
qtnfmac: send EAPOL frames via control path
qtnfmac: handle MIC failure event from firmware
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 41 +++++++++++++
drivers/net/wireless/quantenna/qtnfmac/commands.c | 71 +++++++++++++++++++++-
drivers/net/wireless/quantenna/qtnfmac/commands.h | 3 +
drivers/net/wireless/quantenna/qtnfmac/core.c | 23 ++++---
drivers/net/wireless/quantenna/qtnfmac/core.h | 1 -
drivers/net/wireless/quantenna/qtnfmac/event.c | 47 +++++++++++++-
drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c | 12 ++--
.../wireless/quantenna/qtnfmac/pcie/pcie_priv.h | 4 +-
.../wireless/quantenna/qtnfmac/pcie/pearl_pcie.c | 36 ++++++-----
.../wireless/quantenna/qtnfmac/pcie/topaz_pcie.c | 28 +++++----
drivers/net/wireless/quantenna/qtnfmac/qlink.h | 57 +++++++++++++++++
11 files changed, 274 insertions(+), 49 deletions(-)
--
2.11.0
From: Mikhail Karpenko <[email protected]>
Add new command for getting/setting current transmit power
and propagate requests from user space to firmware.
Signed-off-by: Mikhail Karpenko <[email protected]>
---
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 41 ++++++++++++++
drivers/net/wireless/quantenna/qtnfmac/commands.c | 65 +++++++++++++++++++++++
drivers/net/wireless/quantenna/qtnfmac/commands.h | 3 ++
drivers/net/wireless/quantenna/qtnfmac/qlink.h | 42 +++++++++++++++
4 files changed, 151 insertions(+)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
index d90016125dfc..aa0ed0f2b973 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -897,6 +897,45 @@ static int qtnf_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
return ret;
}
+static int qtnf_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+ int *dbm)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(wdev->netdev);
+ int ret;
+
+ ret = qtnf_cmd_get_tx_power(vif, dbm);
+ if (ret)
+ pr_err("MAC%u: failed to get Tx power\n", vif->mac->macid);
+
+ return ret;
+}
+
+static int qtnf_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+ enum nl80211_tx_power_setting type, int mbm)
+{
+ struct qtnf_vif *vif;
+ int ret;
+
+ if (wdev) {
+ vif = qtnf_netdev_get_priv(wdev->netdev);
+ } else {
+ struct qtnf_wmac *mac = wiphy_priv(wiphy);
+
+ vif = qtnf_mac_get_base_vif(mac);
+ if (!vif) {
+ pr_err("MAC%u: primary VIF is not configured\n",
+ mac->macid);
+ return -EFAULT;
+ }
+ }
+
+ ret = qtnf_cmd_set_tx_power(vif, type, mbm);
+ if (ret)
+ pr_err("MAC%u: failed to set Tx power\n", vif->mac->macid);
+
+ return ret;
+}
+
#ifdef CONFIG_PM
static int qtnf_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan)
{
@@ -991,6 +1030,8 @@ static struct cfg80211_ops qtn_cfg80211_ops = {
.start_radar_detection = qtnf_start_radar_detection,
.set_mac_acl = qtnf_set_mac_acl,
.set_power_mgmt = qtnf_set_power_mgmt,
+ .get_tx_power = qtnf_get_tx_power,
+ .set_tx_power = qtnf_set_tx_power,
#ifdef CONFIG_PM
.suspend = qtnf_suspend,
.resume = qtnf_resume,
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index c0c32805fb8d..61bda34e2ac2 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -2643,6 +2643,71 @@ int qtnf_cmd_send_pm_set(const struct qtnf_vif *vif, u8 pm_mode, int timeout)
return ret;
}
+int qtnf_cmd_get_tx_power(const struct qtnf_vif *vif, int *dbm)
+{
+ struct qtnf_bus *bus = vif->mac->bus;
+ const struct qlink_resp_txpwr *resp;
+ struct sk_buff *resp_skb = NULL;
+ struct qlink_cmd_txpwr *cmd;
+ struct sk_buff *cmd_skb;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_TXPWR, sizeof(*cmd));
+ if (!cmd_skb)
+ return -ENOMEM;
+
+ cmd = (struct qlink_cmd_txpwr *)cmd_skb->data;
+ cmd->op_type = QLINK_TXPWR_GET;
+
+ qtnf_bus_lock(bus);
+
+ ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+ sizeof(*resp), NULL);
+ if (ret)
+ goto out;
+
+ resp = (const struct qlink_resp_txpwr *)resp_skb->data;
+ *dbm = MBM_TO_DBM(le32_to_cpu(resp->txpwr));
+
+out:
+ qtnf_bus_unlock(bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
+int qtnf_cmd_set_tx_power(const struct qtnf_vif *vif,
+ enum nl80211_tx_power_setting type, int mbm)
+{
+ struct qtnf_bus *bus = vif->mac->bus;
+ const struct qlink_resp_txpwr *resp;
+ struct sk_buff *resp_skb = NULL;
+ struct qlink_cmd_txpwr *cmd;
+ struct sk_buff *cmd_skb;
+ int ret = 0;
+
+ cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
+ QLINK_CMD_TXPWR, sizeof(*cmd));
+ if (!cmd_skb)
+ return -ENOMEM;
+
+ cmd = (struct qlink_cmd_txpwr *)cmd_skb->data;
+ cmd->op_type = QLINK_TXPWR_SET;
+ cmd->txpwr_setting = type;
+ cmd->txpwr = cpu_to_le32(mbm);
+
+ qtnf_bus_lock(bus);
+
+ ret = qtnf_cmd_send_with_reply(bus, cmd_skb, &resp_skb,
+ sizeof(*resp), NULL);
+
+ qtnf_bus_unlock(bus);
+ consume_skb(resp_skb);
+
+ return ret;
+}
+
int qtnf_cmd_send_wowlan_set(const struct qtnf_vif *vif,
const struct cfg80211_wowlan *wowl)
{
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.h b/drivers/net/wireless/quantenna/qtnfmac/commands.h
index 88d7a3cd90d2..e0de65261213 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.h
@@ -70,6 +70,9 @@ int qtnf_cmd_start_cac(const struct qtnf_vif *vif,
int qtnf_cmd_set_mac_acl(const struct qtnf_vif *vif,
const struct cfg80211_acl_data *params);
int qtnf_cmd_send_pm_set(const struct qtnf_vif *vif, u8 pm_mode, int timeout);
+int qtnf_cmd_get_tx_power(const struct qtnf_vif *vif, int *dbm);
+int qtnf_cmd_set_tx_power(const struct qtnf_vif *vif,
+ enum nl80211_tx_power_setting type, int mbm);
int qtnf_cmd_send_wowlan_set(const struct qtnf_vif *vif,
const struct cfg80211_wowlan *wowl);
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
index ac1ebe4bb580..59c69c0a6e06 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/qlink.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
@@ -217,6 +217,8 @@ struct qlink_sta_info_state {
* command is supported only if device reports QLINK_HW_SUPPORTS_REG_UPDATE
* capability.
* @QLINK_CMD_START_CAC: start radar detection procedure on a specified channel.
+ * @QLINK_CMD_TXPWR: get or set current channel transmit power for
+ * the specified MAC.
*/
enum qlink_cmd_type {
QLINK_CMD_FW_INIT = 0x0001,
@@ -254,6 +256,7 @@ enum qlink_cmd_type {
QLINK_CMD_PM_SET = 0x0062,
QLINK_CMD_WOWLAN_SET = 0x0063,
QLINK_CMD_EXTERNAL_AUTH = 0x0066,
+ QLINK_CMD_TXPWR = 0x0067,
};
/**
@@ -719,6 +722,32 @@ struct qlink_cmd_pm_set {
} __packed;
/**
+ * enum qlink_txpwr_op - transmit power operation type
+ * @QLINK_TXPWR_SET: set tx power
+ * @QLINK_TXPWR_GET: get current tx power setting
+ */
+enum qlink_txpwr_op {
+ QLINK_TXPWR_SET,
+ QLINK_TXPWR_GET
+};
+
+/**
+ * struct qlink_cmd_txpwr - get or set current transmit power
+ *
+ * @txpwr: new transmit power setting, in mBm
+ * @txpwr_setting: transmit power setting type, one of
+ * &enum nl80211_tx_power_setting
+ * @op_type: type of operation, one of &enum qlink_txpwr_op
+ */
+struct qlink_cmd_txpwr {
+ struct qlink_cmd chdr;
+ __le32 txpwr;
+ u8 txpwr_setting;
+ u8 op_type;
+ u8 rsvd[2];
+} __packed;
+
+/**
* enum qlink_wowlan_trigger
*
* @QLINK_WOWLAN_TRIG_DISCONNECT: wakeup on disconnect
@@ -944,6 +973,19 @@ struct qlink_resp_channel_get {
struct qlink_chandef chan;
} __packed;
+/**
+ * struct qlink_resp_txpwr - response for QLINK_CMD_TXPWR command
+ *
+ * This response is intended for QLINK_TXPWR_GET operation and does not
+ * contain any meaningful information in case of QLINK_TXPWR_SET operation.
+ *
+ * @txpwr: current transmit power setting, in mBm
+ */
+struct qlink_resp_txpwr {
+ struct qlink_resp rhdr;
+ __le32 txpwr;
+} __packed;
+
/* QLINK Events messages related definitions
*/
--
2.11.0
Do not attempt to print frequency for an invalid channel
provided by firmware. That channel may simply not exist.
Signed-off-by: Sergey Matyukevich <[email protected]>
---
drivers/net/wireless/quantenna/qtnfmac/event.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c
index b57c8c18a8d0..7846383c8828 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/event.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -171,8 +171,9 @@ qtnf_event_handle_bss_join(struct qtnf_vif *vif,
return -EPROTO;
}
- pr_debug("VIF%u.%u: BSSID:%pM status:%u\n",
- vif->mac->macid, vif->vifid, join_info->bssid, status);
+ pr_debug("VIF%u.%u: BSSID:%pM chan:%u status:%u\n",
+ vif->mac->macid, vif->vifid, join_info->bssid,
+ le16_to_cpu(join_info->chan.chan.center_freq), status);
if (status != WLAN_STATUS_SUCCESS)
goto done;
@@ -181,7 +182,7 @@ qtnf_event_handle_bss_join(struct qtnf_vif *vif,
if (!cfg80211_chandef_valid(&chandef)) {
pr_warn("MAC%u.%u: bad channel freq=%u cf1=%u cf2=%u bw=%u\n",
vif->mac->macid, vif->vifid,
- chandef.chan->center_freq,
+ chandef.chan ? chandef.chan->center_freq : 0,
chandef.center_freq1,
chandef.center_freq2,
chandef.width);
--
2.11.0
Report MIC failure from firmware to cfg80211 subsystem
using dedicated callback cfg80211_michael_mic_failure.
Signed-off-by: Sergey Matyukevich <[email protected]>
---
drivers/net/wireless/quantenna/qtnfmac/event.c | 40 ++++++++++++++++++++++++++
drivers/net/wireless/quantenna/qtnfmac/qlink.h | 15 ++++++++++
2 files changed, 55 insertions(+)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c
index 7846383c8828..51af93bdf06e 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/event.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -618,6 +618,42 @@ qtnf_event_handle_external_auth(struct qtnf_vif *vif,
return ret;
}
+static int
+qtnf_event_handle_mic_failure(struct qtnf_vif *vif,
+ const struct qlink_event_mic_failure *mic_ev,
+ u16 len)
+{
+ struct wiphy *wiphy = priv_to_wiphy(vif->mac);
+ u8 pairwise;
+
+ if (len < sizeof(*mic_ev)) {
+ pr_err("VIF%u.%u: payload is too short (%u < %zu)\n",
+ vif->mac->macid, vif->vifid, len,
+ sizeof(struct qlink_event_mic_failure));
+ return -EINVAL;
+ }
+
+ if (!wiphy->registered || !vif->netdev)
+ return 0;
+
+ if (vif->wdev.iftype != NL80211_IFTYPE_STATION) {
+ pr_err("VIF%u.%u: MIC_FAILURE event when not in STA mode\n",
+ vif->mac->macid, vif->vifid);
+ return -EPROTO;
+ }
+
+ pairwise = mic_ev->pairwise ?
+ NL80211_KEYTYPE_PAIRWISE : NL80211_KEYTYPE_GROUP;
+
+ pr_info("%s: MIC error: src=%pM key_index=%u pairwise=%u\n",
+ vif->netdev->name, mic_ev->src, mic_ev->key_index, pairwise);
+
+ cfg80211_michael_mic_failure(vif->netdev, mic_ev->src, pairwise,
+ mic_ev->key_index, NULL, GFP_KERNEL);
+
+ return 0;
+}
+
static int qtnf_event_parse(struct qtnf_wmac *mac,
const struct sk_buff *event_skb)
{
@@ -680,6 +716,10 @@ static int qtnf_event_parse(struct qtnf_wmac *mac,
ret = qtnf_event_handle_external_auth(vif, (const void *)event,
event_len);
break;
+ case QLINK_EVENT_MIC_FAILURE:
+ ret = qtnf_event_handle_mic_failure(vif, (const void *)event,
+ event_len);
+ break;
default:
pr_warn("unknown event type: %x\n", event_id);
break;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
index 8a3c6344fa8e..ac1ebe4bb580 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/qlink.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
@@ -958,6 +958,7 @@ enum qlink_event_type {
QLINK_EVENT_FREQ_CHANGE = 0x0028,
QLINK_EVENT_RADAR = 0x0029,
QLINK_EVENT_EXTERNAL_AUTH = 0x0030,
+ QLINK_EVENT_MIC_FAILURE = 0x0031,
};
/**
@@ -1151,6 +1152,20 @@ struct qlink_event_external_auth {
u8 action;
} __packed;
+/**
+ * struct qlink_event_mic_failure - data for QLINK_EVENT_MIC_FAILURE event
+ *
+ * @src: source MAC address of the frame
+ * @key_index: index of the key being reported
+ * @pairwise: whether the key is pairwise or group
+ */
+struct qlink_event_mic_failure {
+ struct qlink_event ehdr;
+ u8 src[ETH_ALEN];
+ u8 key_index;
+ u8 pairwise;
+} __packed;
+
/* QLINK TLVs (Type-Length Values) definitions
*/
--
2.11.0
Send EAPOL frames via control path so they can be treated in a different
way rather than normal data frames. In this case EAPOLs are sent with
higher priority and with disabled aggregation and encryption. Besides,
all devices benefit from sending EAPOL frames via high priority path,
so move the functionality from chip specific to common code.
Signed-off-by: Igor Mitsyanko <[email protected]>
Signed-off-by: Sergey Matyukevich <[email protected]>
---
drivers/net/wireless/quantenna/qtnfmac/core.c | 23 +++++++++++++---------
drivers/net/wireless/quantenna/qtnfmac/core.h | 1 -
drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c | 1 -
.../wireless/quantenna/qtnfmac/pcie/pcie_priv.h | 1 -
.../wireless/quantenna/qtnfmac/pcie/topaz_pcie.c | 8 --------
5 files changed, 14 insertions(+), 20 deletions(-)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c
index 8d699cc03d26..8116b224c946 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/core.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.c
@@ -67,6 +67,14 @@ static int qtnf_netdev_close(struct net_device *ndev)
return 0;
}
+static void qtnf_packet_send_hi_pri(struct sk_buff *skb)
+{
+ struct qtnf_vif *vif = qtnf_netdev_get_priv(skb->dev);
+
+ skb_queue_tail(&vif->high_pri_tx_queue, skb);
+ queue_work(vif->mac->bus->hprio_workqueue, &vif->high_pri_tx_work);
+}
+
/* Netdev handler for data transmission.
*/
static netdev_tx_t
@@ -107,6 +115,12 @@ qtnf_netdev_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
/* tx path is enabled: reset vif timeout */
vif->cons_tx_timeout_cnt = 0;
+ if (unlikely(skb->protocol == htons(ETH_P_PAE))) {
+ qtnf_packet_send_hi_pri(skb);
+ qtnf_update_tx_stats(ndev, skb);
+ return NETDEV_TX_OK;
+ }
+
return qtnf_bus_data_tx(mac->bus, skb);
}
@@ -841,15 +855,6 @@ void qtnf_update_tx_stats(struct net_device *ndev, const struct sk_buff *skb)
}
EXPORT_SYMBOL_GPL(qtnf_update_tx_stats);
-void qtnf_packet_send_hi_pri(struct sk_buff *skb)
-{
- struct qtnf_vif *vif = qtnf_netdev_get_priv(skb->dev);
-
- skb_queue_tail(&vif->high_pri_tx_queue, skb);
- queue_work(vif->mac->bus->hprio_workqueue, &vif->high_pri_tx_work);
-}
-EXPORT_SYMBOL_GPL(qtnf_packet_send_hi_pri);
-
struct dentry *qtnf_get_debugfs_dir(void)
{
return qtnf_debugfs_dir;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.h b/drivers/net/wireless/quantenna/qtnfmac/core.h
index 322858df600c..e3feea31191e 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/core.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.h
@@ -152,7 +152,6 @@ void qtnf_virtual_intf_cleanup(struct net_device *ndev);
void qtnf_netdev_updown(struct net_device *ndev, bool up);
void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted);
-void qtnf_packet_send_hi_pri(struct sk_buff *skb);
struct dentry *qtnf_get_debugfs_dir(void);
static inline struct qtnf_vif *qtnf_netdev_get_priv(struct net_device *dev)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
index 3360b836fc44..5337e67092ca 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c
@@ -357,7 +357,6 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
pcie_priv->pcie_irq_count = 0;
pcie_priv->tx_reclaim_done = 0;
pcie_priv->tx_reclaim_req = 0;
- pcie_priv->tx_eapol = 0;
pcie_priv->workqueue = create_singlethread_workqueue("QTNF_PCIE");
if (!pcie_priv->workqueue) {
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
index 8bc4300518d0..2a6a928e13bd 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie_priv.h
@@ -63,7 +63,6 @@ struct qtnf_pcie_bus_priv {
u32 tx_done_count;
u32 tx_reclaim_done;
u32 tx_reclaim_req;
- u32 tx_eapol;
u8 msi_enabled;
u8 tx_stopped;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
index ef255fb57405..a0587472736f 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c
@@ -509,13 +509,6 @@ static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
int len;
int i;
- if (unlikely(skb->protocol == htons(ETH_P_PAE))) {
- qtnf_packet_send_hi_pri(skb);
- qtnf_update_tx_stats(skb->dev, skb);
- priv->tx_eapol++;
- return NETDEV_TX_OK;
- }
-
spin_lock_irqsave(&priv->tx_lock, flags);
if (!qtnf_tx_queue_ready(ts)) {
@@ -779,7 +772,6 @@ static int qtnf_dbg_pkt_stats(struct seq_file *s, void *data)
seq_printf(s, "tx_done_count(%u)\n", priv->tx_done_count);
seq_printf(s, "tx_reclaim_done(%u)\n", priv->tx_reclaim_done);
seq_printf(s, "tx_reclaim_req(%u)\n", priv->tx_reclaim_req);
- seq_printf(s, "tx_eapol(%u)\n", priv->tx_eapol);
seq_printf(s, "tx_bd_r_index(%u)\n", priv->tx_bd_r_index);
seq_printf(s, "tx_done_index(%u)\n", tx_done_index);
--
2.11.0