diff options
| author | Franky Lin <frankyl@broadcom.com> | 2015-08-20 23:06:04 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2015-08-25 15:32:26 +0300 |
| commit | 2bb66a8183d6396babde51e558b1ab35733f275f (patch) | |
| tree | b1739f86c1ad56e4e156327133895bd478dbd52c /drivers | |
| parent | 0882dda3bcbb51e63c2fd25705ec8541bf86378e (diff) | |
| download | linux-2bb66a8183d6396babde51e558b1ab35733f275f.tar.xz | |
brcmfmac: add debugfs entry for msgbuf statistics
Expose ring buffer read/write pointers and other useful statistics
through debugfs.
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c index 898c3801e658..7b2136c9badb 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c @@ -1360,6 +1360,60 @@ void brcmf_msgbuf_delete_flowring(struct brcmf_pub *drvr, u8 flowid) } } +#ifdef DEBUG +static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(seq->private); + struct brcmf_pub *drvr = bus_if->drvr; + struct brcmf_msgbuf *msgbuf = (struct brcmf_msgbuf *)drvr->proto->pd; + struct brcmf_commonring *commonring; + u16 i; + struct brcmf_flowring_ring *ring; + struct brcmf_flowring_hash *hash; + + commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_CONTROL_SUBMIT]; + seq_printf(seq, "h2d_ctl_submit: rp %4u, wp %4u, depth %4u\n", + commonring->r_ptr, commonring->w_ptr, commonring->depth); + commonring = msgbuf->commonrings[BRCMF_H2D_MSGRING_RXPOST_SUBMIT]; + seq_printf(seq, "h2d_rx_submit: rp %4u, wp %4u, depth %4u\n", + commonring->r_ptr, commonring->w_ptr, commonring->depth); + commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_CONTROL_COMPLETE]; + seq_printf(seq, "d2h_ctl_cmplt: rp %4u, wp %4u, depth %4u\n", + commonring->r_ptr, commonring->w_ptr, commonring->depth); + commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_TX_COMPLETE]; + seq_printf(seq, "d2h_tx_cmplt: rp %4u, wp %4u, depth %4u\n", + commonring->r_ptr, commonring->w_ptr, commonring->depth); + commonring = msgbuf->commonrings[BRCMF_D2H_MSGRING_RX_COMPLETE]; + seq_printf(seq, "d2h_rx_cmplt: rp %4u, wp %4u, depth %4u\n", + commonring->r_ptr, commonring->w_ptr, commonring->depth); + + seq_printf(seq, "\nh2d_flowrings: depth %u\n", + BRCMF_H2D_TXFLOWRING_MAX_ITEM); + seq_puts(seq, "Active flowrings:\n"); + hash = msgbuf->flow->hash; + for (i = 0; i < msgbuf->flow->nrofrings; i++) { + if (!msgbuf->flow->rings[i]) + continue; + ring = msgbuf->flow->rings[i]; + if (ring->status != RING_OPEN) + continue; + commonring = msgbuf->flowrings[i]; + hash = &msgbuf->flow->hash[ring->hash_id]; + seq_printf(seq, "id %3u: rp %4u, wp %4u, qlen %4u, blocked %u\n" + " ifidx %u, fifo %u, da %pM\n", + i, commonring->r_ptr, commonring->w_ptr, + skb_queue_len(&ring->skblist), ring->blocked, + hash->ifidx, hash->fifo, hash->mac); + } + + return 0; +} +#else +static int brcmf_msgbuf_stats_read(struct seq_file *seq, void *data) +{ + return 0; +} +#endif int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) { @@ -1460,6 +1514,8 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr) spin_lock_init(&msgbuf->flowring_work_lock); INIT_LIST_HEAD(&msgbuf->work_queue); + brcmf_debugfs_add_entry(drvr, "msgbuf_stats", brcmf_msgbuf_stats_read); + return 0; fail: |