From: greearb@candelatech.com To: linux-wireless@vger.kernel.org Cc: ath9k-devel@venema.h4ckr.net, Ben Greear <greearb@candelatech.com> Subject: [PATCH RESEND 07/11] ath9k: Keep track of stations for debugfs. Date: Sun, 9 Jan 2011 23:11:49 -0800 [thread overview] Message-ID: <1294643513-18820-8-git-send-email-greearb@candelatech.com> (raw) In-Reply-To: <1294643513-18820-1-git-send-email-greearb@candelatech.com> From: Ben Greear <greearb@candelatech.com> The stations hold the ath_node, which holds the tid and other xmit logic structures. In order to debug stuck xmit logic, we need a way to print out the tid state for the stations. Signed-off-by: Ben Greear <greearb@candelatech.com> --- :100644 100644 deda815... 3f5c513... M drivers/net/wireless/ath/ath9k/ath9k.h :100644 100644 faf84e4... 650f00f... M drivers/net/wireless/ath/ath9k/debug.c :100644 100644 23b2998... 59c01ca... M drivers/net/wireless/ath/ath9k/init.c :100644 100644 16eb891... cb9940b... M drivers/net/wireless/ath/ath9k/main.c drivers/net/wireless/ath/ath9k/ath9k.h | 7 ++- drivers/net/wireless/ath/ath9k/debug.c | 94 +++++++++++++++++++++++++++++++- drivers/net/wireless/ath/ath9k/init.c | 4 ++ drivers/net/wireless/ath/ath9k/main.c | 13 +++++ 4 files changed, 115 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index deda815..3f5c513 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -254,7 +254,10 @@ struct ath_atx_tid { }; struct ath_node { - struct ath_common *common; +#ifdef CONFIG_ATH9K_DEBUGFS + struct list_head list; /* for sc->nodes */ + struct ieee80211_sta *sta; /* station struct we're part of */ +#endif struct ath_atx_tid tid[WME_NUM_TID]; struct ath_atx_ac ac[WME_NUM_AC]; u16 maxampdu; @@ -624,6 +627,8 @@ struct ath_softc { #ifdef CONFIG_ATH9K_DEBUGFS struct ath9k_debug debug; + spinlock_t nodes_lock; + struct list_head nodes; /* basically, stations */ #endif struct ath_beacon_config cur_beacon_conf; struct delayed_work tx_complete_work; diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index faf84e4..650f00f 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -587,6 +587,8 @@ static const struct file_operations fops_wiphy = { sc->debug.stats.txstats[WME_AC_BK].elem, \ sc->debug.stats.txstats[WME_AC_VI].elem, \ sc->debug.stats.txstats[WME_AC_VO].elem); \ + if (len >= size) \ + goto done; \ } while(0) #define PRX(str, elem) \ @@ -597,6 +599,8 @@ do { \ (unsigned int)(sc->tx.txq[WME_AC_BK].elem), \ (unsigned int)(sc->tx.txq[WME_AC_VI].elem), \ (unsigned int)(sc->tx.txq[WME_AC_VO].elem)); \ + if (len >= size) \ + goto done; \ } while(0) #define PRQLE(str, elem) \ @@ -607,6 +611,8 @@ do { \ list_empty(&sc->tx.txq[WME_AC_BK].elem), \ list_empty(&sc->tx.txq[WME_AC_VI].elem), \ list_empty(&sc->tx.txq[WME_AC_VO].elem)); \ + if (len >= size) \ + goto done; \ } while (0) static ssize_t read_file_xmit(struct file *file, char __user *user_buf, @@ -614,7 +620,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, { struct ath_softc *sc = file->private_data; char *buf; - unsigned int len = 0, size = 4000; + unsigned int len = 0, size = 8000; int i; ssize_t retval = 0; char tmp[32]; @@ -623,7 +629,10 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, if (buf == NULL) return -ENOMEM; - len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO"); + len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x\n" + "%30s %10s%10s%10s\n\n", + ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup, + "BE", "BK", "VI", "VO"); PR("MPDUs Queued: ", queued); PR("MPDUs Completed: ", completed); @@ -644,6 +653,14 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, PR("hw-put-tx-buf: ", puttxbuf); PR("hw-tx-start: ", txstart); PR("hw-tx-proc-desc: ", txprocdesc); + len += snprintf(buf + len, size - len, + "%s%11p%11p%10p%10p\n", "txq-memory-address:", + &(sc->tx.txq[WME_AC_BE]), + &(sc->tx.txq[WME_AC_BK]), + &(sc->tx.txq[WME_AC_VI]), + &(sc->tx.txq[WME_AC_VO])); + if (len >= size) + goto done; PRX("axq-qnum: ", axq_qnum); PRX("axq-depth: ", axq_depth); @@ -661,6 +678,68 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i); PRQLE(tmp, txq_fifo[i]); } + +done: + if (len > size) + len = size; + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + +static ssize_t read_file_stations(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + char *buf; + unsigned int len = 0, size = 64000; + struct ath_node *an = NULL; + ssize_t retval = 0; + int q; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + len += snprintf(buf + len, size - len, + "Stations:\n" + " tid: addr sched paused buf_q-empty an ac\n" + " ac: addr sched tid_q-empty txq\n"); + + spin_lock(&sc->nodes_lock); + list_for_each_entry(an, &sc->nodes, list) { + len += snprintf(buf + len, size - len, + "%pM\n", an->sta->addr); + if (len >= size) + goto done; + + for (q = 0; q < WME_NUM_TID; q++) { + struct ath_atx_tid *tid = &(an->tid[q]); + len += snprintf(buf + len, size - len, + " tid: %p %s %s %i %p %p\n", + tid, tid->sched ? "sched" : "idle", + tid->paused ? "paused" : "running", + list_empty(&tid->buf_q), + tid->an, tid->ac); + if (len >= size) + goto done; + } + + for (q = 0; q < WME_NUM_AC; q++) { + struct ath_atx_ac *ac = &(an->ac[q]); + len += snprintf(buf + len, size - len, + " ac: %p %s %i %p\n", + ac, ac->sched ? "sched" : "idle", + list_empty(&ac->tid_q), ac->txq); + if (len >= size) + goto done; + } + } + +done: + spin_unlock(&sc->nodes_lock); if (len > size) len = size; @@ -708,6 +787,13 @@ static const struct file_operations fops_xmit = { .llseek = default_llseek, }; +static const struct file_operations fops_stations = { + .read = read_file_stations, + .open = ath9k_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + static ssize_t read_file_recv(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -945,6 +1031,10 @@ int ath9k_init_debug(struct ath_hw *ah) sc, &fops_xmit)) goto err; + if (!debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, + sc, &fops_stations)) + goto err; + if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_recv)) goto err; diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 23b2998..59c01ca 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -559,6 +559,10 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, spin_lock_init(&sc->sc_serial_rw); spin_lock_init(&sc->sc_pm_lock); mutex_init(&sc->mutex); +#ifdef CONFIG_ATH9K_DEBUGFS + spin_lock_init(&sc->nodes_lock); + INIT_LIST_HEAD(&sc->nodes); +#endif tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, (unsigned long)sc); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 16eb891..cb9940b 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -545,6 +545,12 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) struct ath_hw *ah = sc->sc_ah; an = (struct ath_node *)sta->drv_priv; +#ifdef CONFIG_ATH9K_DEBUGFS + spin_lock(&sc->nodes_lock); + list_add(&an->list, &sc->nodes); + spin_unlock(&sc->nodes_lock); + an->sta = sta; +#endif if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM) sc->sc_flags |= SC_OP_ENABLE_APM; @@ -560,6 +566,13 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) { struct ath_node *an = (struct ath_node *)sta->drv_priv; +#ifdef CONFIG_ATH9K_DEBUGFS + spin_lock(&sc->nodes_lock); + list_del(&an->list); + spin_unlock(&sc->nodes_lock); + an->sta = NULL; +#endif + if (sc->sc_flags & SC_OP_TXAGGR) ath_tx_node_cleanup(sc, an); } -- 1.7.2.3
WARNING: multiple messages have this Message-ID (diff)
From: greearb at candelatech.com <greearb@candelatech.com> To: ath9k-devel@lists.ath9k.org Subject: [ath9k-devel] [PATCH RESEND 07/11] ath9k: Keep track of stations for debugfs. Date: Sun, 9 Jan 2011 23:11:49 -0800 [thread overview] Message-ID: <1294643513-18820-8-git-send-email-greearb@candelatech.com> (raw) In-Reply-To: <1294643513-18820-1-git-send-email-greearb@candelatech.com> From: Ben Greear <greearb@candelatech.com> The stations hold the ath_node, which holds the tid and other xmit logic structures. In order to debug stuck xmit logic, we need a way to print out the tid state for the stations. Signed-off-by: Ben Greear <greearb@candelatech.com> --- :100644 100644 deda815... 3f5c513... M drivers/net/wireless/ath/ath9k/ath9k.h :100644 100644 faf84e4... 650f00f... M drivers/net/wireless/ath/ath9k/debug.c :100644 100644 23b2998... 59c01ca... M drivers/net/wireless/ath/ath9k/init.c :100644 100644 16eb891... cb9940b... M drivers/net/wireless/ath/ath9k/main.c drivers/net/wireless/ath/ath9k/ath9k.h | 7 ++- drivers/net/wireless/ath/ath9k/debug.c | 94 +++++++++++++++++++++++++++++++- drivers/net/wireless/ath/ath9k/init.c | 4 ++ drivers/net/wireless/ath/ath9k/main.c | 13 +++++ 4 files changed, 115 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index deda815..3f5c513 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -254,7 +254,10 @@ struct ath_atx_tid { }; struct ath_node { - struct ath_common *common; +#ifdef CONFIG_ATH9K_DEBUGFS + struct list_head list; /* for sc->nodes */ + struct ieee80211_sta *sta; /* station struct we're part of */ +#endif struct ath_atx_tid tid[WME_NUM_TID]; struct ath_atx_ac ac[WME_NUM_AC]; u16 maxampdu; @@ -624,6 +627,8 @@ struct ath_softc { #ifdef CONFIG_ATH9K_DEBUGFS struct ath9k_debug debug; + spinlock_t nodes_lock; + struct list_head nodes; /* basically, stations */ #endif struct ath_beacon_config cur_beacon_conf; struct delayed_work tx_complete_work; diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index faf84e4..650f00f 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -587,6 +587,8 @@ static const struct file_operations fops_wiphy = { sc->debug.stats.txstats[WME_AC_BK].elem, \ sc->debug.stats.txstats[WME_AC_VI].elem, \ sc->debug.stats.txstats[WME_AC_VO].elem); \ + if (len >= size) \ + goto done; \ } while(0) #define PRX(str, elem) \ @@ -597,6 +599,8 @@ do { \ (unsigned int)(sc->tx.txq[WME_AC_BK].elem), \ (unsigned int)(sc->tx.txq[WME_AC_VI].elem), \ (unsigned int)(sc->tx.txq[WME_AC_VO].elem)); \ + if (len >= size) \ + goto done; \ } while(0) #define PRQLE(str, elem) \ @@ -607,6 +611,8 @@ do { \ list_empty(&sc->tx.txq[WME_AC_BK].elem), \ list_empty(&sc->tx.txq[WME_AC_VI].elem), \ list_empty(&sc->tx.txq[WME_AC_VO].elem)); \ + if (len >= size) \ + goto done; \ } while (0) static ssize_t read_file_xmit(struct file *file, char __user *user_buf, @@ -614,7 +620,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, { struct ath_softc *sc = file->private_data; char *buf; - unsigned int len = 0, size = 4000; + unsigned int len = 0, size = 8000; int i; ssize_t retval = 0; char tmp[32]; @@ -623,7 +629,10 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, if (buf == NULL) return -ENOMEM; - len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO"); + len += sprintf(buf, "Num-Tx-Queues: %i tx-queues-setup: 0x%x\n" + "%30s %10s%10s%10s\n\n", + ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup, + "BE", "BK", "VI", "VO"); PR("MPDUs Queued: ", queued); PR("MPDUs Completed: ", completed); @@ -644,6 +653,14 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, PR("hw-put-tx-buf: ", puttxbuf); PR("hw-tx-start: ", txstart); PR("hw-tx-proc-desc: ", txprocdesc); + len += snprintf(buf + len, size - len, + "%s%11p%11p%10p%10p\n", "txq-memory-address:", + &(sc->tx.txq[WME_AC_BE]), + &(sc->tx.txq[WME_AC_BK]), + &(sc->tx.txq[WME_AC_VI]), + &(sc->tx.txq[WME_AC_VO])); + if (len >= size) + goto done; PRX("axq-qnum: ", axq_qnum); PRX("axq-depth: ", axq_depth); @@ -661,6 +678,68 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i); PRQLE(tmp, txq_fifo[i]); } + +done: + if (len > size) + len = size; + + retval = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + + return retval; +} + +static ssize_t read_file_stations(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + char *buf; + unsigned int len = 0, size = 64000; + struct ath_node *an = NULL; + ssize_t retval = 0; + int q; + + buf = kzalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + len += snprintf(buf + len, size - len, + "Stations:\n" + " tid: addr sched paused buf_q-empty an ac\n" + " ac: addr sched tid_q-empty txq\n"); + + spin_lock(&sc->nodes_lock); + list_for_each_entry(an, &sc->nodes, list) { + len += snprintf(buf + len, size - len, + "%pM\n", an->sta->addr); + if (len >= size) + goto done; + + for (q = 0; q < WME_NUM_TID; q++) { + struct ath_atx_tid *tid = &(an->tid[q]); + len += snprintf(buf + len, size - len, + " tid: %p %s %s %i %p %p\n", + tid, tid->sched ? "sched" : "idle", + tid->paused ? "paused" : "running", + list_empty(&tid->buf_q), + tid->an, tid->ac); + if (len >= size) + goto done; + } + + for (q = 0; q < WME_NUM_AC; q++) { + struct ath_atx_ac *ac = &(an->ac[q]); + len += snprintf(buf + len, size - len, + " ac: %p %s %i %p\n", + ac, ac->sched ? "sched" : "idle", + list_empty(&ac->tid_q), ac->txq); + if (len >= size) + goto done; + } + } + +done: + spin_unlock(&sc->nodes_lock); if (len > size) len = size; @@ -708,6 +787,13 @@ static const struct file_operations fops_xmit = { .llseek = default_llseek, }; +static const struct file_operations fops_stations = { + .read = read_file_stations, + .open = ath9k_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + static ssize_t read_file_recv(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -945,6 +1031,10 @@ int ath9k_init_debug(struct ath_hw *ah) sc, &fops_xmit)) goto err; + if (!debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, + sc, &fops_stations)) + goto err; + if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_recv)) goto err; diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 23b2998..59c01ca 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -559,6 +559,10 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, u16 subsysid, spin_lock_init(&sc->sc_serial_rw); spin_lock_init(&sc->sc_pm_lock); mutex_init(&sc->mutex); +#ifdef CONFIG_ATH9K_DEBUGFS + spin_lock_init(&sc->nodes_lock); + INIT_LIST_HEAD(&sc->nodes); +#endif tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc); tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet, (unsigned long)sc); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 16eb891..cb9940b 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -545,6 +545,12 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta) struct ath_hw *ah = sc->sc_ah; an = (struct ath_node *)sta->drv_priv; +#ifdef CONFIG_ATH9K_DEBUGFS + spin_lock(&sc->nodes_lock); + list_add(&an->list, &sc->nodes); + spin_unlock(&sc->nodes_lock); + an->sta = sta; +#endif if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM) sc->sc_flags |= SC_OP_ENABLE_APM; @@ -560,6 +566,13 @@ static void ath_node_detach(struct ath_softc *sc, struct ieee80211_sta *sta) { struct ath_node *an = (struct ath_node *)sta->drv_priv; +#ifdef CONFIG_ATH9K_DEBUGFS + spin_lock(&sc->nodes_lock); + list_del(&an->list); + spin_unlock(&sc->nodes_lock); + an->sta = NULL; +#endif + if (sc->sc_flags & SC_OP_TXAGGR) ath_tx_node_cleanup(sc, an); } -- 1.7.2.3
next prev parent reply other threads:[~2011-01-10 7:12 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-01-10 7:11 ath9k: Resend all my pending patches greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 01/11] ath9k: Show some live tx-queue values in debugfs greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 02/11] ath9k: Initialize ah->hw greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 03/11] ath9k: Add more information to debugfs xmit file greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 04/11] ath9k: Remove un-used member from ath_node greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 05/11] ath9k: Ensure xmit makes progress greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 06/11] ath9k: Add counters to distinquish AMPDU enqueues greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` greearb [this message] 2011-01-10 7:11 ` [ath9k-devel] [PATCH RESEND 07/11] ath9k: Keep track of stations for debugfs greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 08/11] ath9k: More xmit queue debugfs information greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 09/11] ath9k: Try all queues when looking for next packet to send greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-25 21:37 ` John W. Linville 2011-01-25 21:37 ` [ath9k-devel] " John W. Linville 2011-01-25 22:01 ` Ben Greear 2011-01-25 22:01 ` [ath9k-devel] " Ben Greear 2011-01-10 7:11 ` [PATCH RESEND 10/11] ath9k: Restart xmit logic in xmit watchdog greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 7:11 ` [PATCH RESEND 11/11] ath9k: Implement rx copy-break greearb 2011-01-10 7:11 ` [ath9k-devel] " greearb at candelatech.com 2011-01-10 15:19 ` Felix Fietkau 2011-01-10 15:19 ` [ath9k-devel] " Felix Fietkau
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