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Message-Id: <20070129010003.09E827B40A1@zog.reactivated.net>
Date: Mon, 29 Jan 2007 01:00:03 +0000 (GMT)
From: Daniel Drake <dsd@...too.org>
To: linville@...driver.com
Cc: kune@...ne-taler.de
Subject: [PATCH] zd1211rw: Added error stats update
From: Ulrich Kunitz <kune@...ne-taler.de>
Added update of network device error statistics.
Based on earlier work by Maxime Austruy.
Signed-off-by: Ulrich Kunitz <kune@...ne-taler.de>
Signed-off-by: Daniel Drake <dsd@...too.org>
---
zd_mac.c | 37 ++++++++++++++++++++++++++++++++-----
zd_usb.c | 9 +++++++++
2 files changed, 41 insertions(+), 5 deletions(-)
Index: linux/drivers/net/wireless/zd1211rw/zd_mac.c
===================================================================
--- linux.orig/drivers/net/wireless/zd1211rw/zd_mac.c
+++ linux/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -903,16 +903,21 @@ static int fill_ctrlset(struct zd_mac *m
static int zd_mac_tx(struct zd_mac *mac, struct ieee80211_txb *txb, int pri)
{
int i, r;
+ struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
for (i = 0; i < txb->nr_frags; i++) {
struct sk_buff *skb = txb->fragments[i];
r = fill_ctrlset(mac, txb, i);
- if (r)
+ if (r) {
+ ieee->stats.tx_dropped++;
return r;
+ }
r = zd_usb_tx(&mac->chip.usb, skb->data, skb->len);
- if (r)
+ if (r) {
+ ieee->stats.tx_dropped++;
return r;
+ }
}
/* FIXME: shouldn't this be handled by the upper layers? */
@@ -1062,9 +1067,23 @@ static int fill_rx_stats(struct ieee8021
*pstatus = status = zd_tail(buffer, length, sizeof(struct rx_status));
if (status->frame_status & ZD_RX_ERROR) {
- /* FIXME: update? */
+ struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
+ ieee->stats.rx_errors++;
+ if (status->frame_status & ZD_RX_TIMEOUT_ERROR)
+ ieee->stats.rx_missed_errors++;
+ else if (status->frame_status & ZD_RX_FIFO_OVERRUN_ERROR)
+ ieee->stats.rx_fifo_errors++;
+ else if (status->frame_status & ZD_RX_DECRYPTION_ERROR)
+ ieee->ieee_stats.rx_discards_undecryptable++;
+ else if (status->frame_status & ZD_RX_CRC32_ERROR) {
+ ieee->stats.rx_crc_errors++;
+ ieee->ieee_stats.rx_fcs_errors++;
+ }
+ else if (status->frame_status & ZD_RX_CRC16_ERROR)
+ ieee->stats.rx_crc_errors++;
return -EINVAL;
}
+
memset(stats, 0, sizeof(struct ieee80211_rx_stats));
stats->len = length - (ZD_PLCP_HEADER_SIZE + IEEE80211_FCS_LEN +
+ sizeof(struct rx_status));
@@ -1093,6 +1112,8 @@ static void zd_mac_rx(struct zd_mac *mac
if (skb->len < ZD_PLCP_HEADER_SIZE + IEEE80211_1ADDR_LEN +
IEEE80211_FCS_LEN + sizeof(struct rx_status))
{
+ ieee->stats.rx_errors++;
+ ieee->stats.rx_length_errors++;
dev_dbg_f(zd_mac_dev(mac), "Packet with length %u to small.\n",
skb->len);
goto free_skb;
@@ -1100,7 +1121,9 @@ static void zd_mac_rx(struct zd_mac *mac
r = fill_rx_stats(&stats, &status, mac, skb->data, skb->len);
if (r) {
- /* Only packets with rx errors are included here. */
+ /* Only packets with rx errors are included here.
+ * The error stats have already been set in fill_rx_stats.
+ */
goto free_skb;
}
@@ -1113,8 +1136,10 @@ static void zd_mac_rx(struct zd_mac *mac
r = filter_rx(ieee, skb->data, skb->len, &stats);
if (r <= 0) {
- if (r < 0)
+ if (r < 0) {
+ ieee->stats.rx_errors++;
dev_dbg_f(zd_mac_dev(mac), "Error in packet.\n");
+ }
goto free_skb;
}
@@ -1145,7 +1170,9 @@ int zd_mac_rx_irq(struct zd_mac *mac, co
skb = dev_alloc_skb(sizeof(struct zd_rt_hdr) + length);
if (!skb) {
+ struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
dev_warn(zd_mac_dev(mac), "Could not allocate skb.\n");
+ ieee->stats.rx_dropped++;
return -ENOMEM;
}
skb_reserve(skb, sizeof(struct zd_rt_hdr));
Index: linux/drivers/net/wireless/zd1211rw/zd_usb.c
===================================================================
--- linux.orig/drivers/net/wireless/zd1211rw/zd_usb.c
+++ linux/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -313,6 +313,12 @@ out:
static inline void handle_retry_failed_int(struct urb *urb)
{
+ struct zd_usb *usb = urb->context;
+ struct zd_mac *mac = zd_usb_to_mac(usb);
+ struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
+
+ ieee->stats.tx_errors++;
+ ieee->ieee_stats.tx_retry_limit_exceeded++;
dev_dbg_f(urb_dev(urb), "retry failed interrupt\n");
}
@@ -487,6 +493,9 @@ static void handle_rx_packet(struct zd_u
if (length < sizeof(struct rx_length_info)) {
/* It's not a complete packet anyhow. */
+ struct ieee80211_device *ieee = zd_mac_to_ieee80211(mac);
+ ieee->stats.rx_errors++;
+ ieee->stats.rx_length_errors++;
return;
}
length_info = (struct rx_length_info *)
-
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