diff options
| author | Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> | 2014-06-16 16:37:04 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-06-19 19:49:24 (GMT) |
| commit | 67c3e1b41efe4dd400f444c6dccc4538b627758c (patch) | |
| tree | cd94e35ffba475ede4e030c852e6e7ab2dcb0f71 /drivers/net/wireless/ath | |
| parent | 8eea944af0efcdba09dac1ad220c9bfa68293279 (diff) | |
| download | linux-67c3e1b41efe4dd400f444c6dccc4538b627758c.tar.xz | |
wil6210: more debug info for vring
print used/available counters on debugfs;
print to dmesg when Tx vring becomes empty
This aids with performance investigation
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/debugfs.c | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/txrx.c | 4 |
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 4fb3375..d90aa28 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -72,11 +72,16 @@ static int wil_vring_debugfs_show(struct seq_file *s, void *data) if (vring->va) { int cid = wil->vring2cid_tid[i][0]; int tid = wil->vring2cid_tid[i][1]; + u32 swhead = vring->swhead; + u32 swtail = vring->swtail; + int used = (vring->size + swhead - swtail) + % vring->size; + int avail = vring->size - used - 1; char name[10]; snprintf(name, sizeof(name), "tx_%2d", i); - seq_printf(s, "\n%pM CID %d TID %d\n", - wil->sta[cid].addr, cid, tid); + seq_printf(s, "\n%pM CID %d TID %d [%3d|%3d]\n", + wil->sta[cid].addr, cid, tid, used, avail); wil_print_vring(s, wil, name, vring, '_', 'H'); } } diff --git a/drivers/net/wireless/ath/wil6210/txrx.c b/drivers/net/wireless/ath/wil6210/txrx.c index 0784ef3..c08d041 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.c +++ b/drivers/net/wireless/ath/wil6210/txrx.c @@ -1132,6 +1132,10 @@ int wil_tx_complete(struct wil6210_priv *wil, int ringid) done++; } } + + if (wil_vring_is_empty(vring)) + wil_dbg_txrx(wil, "Ring[%2d] empty\n", ringid); + if (wil_vring_avail_tx(vring) > wil_vring_wmark_high(vring)) netif_tx_wake_all_queues(wil_to_ndev(wil)); |