diff options
Diffstat (limited to 'package/kernel/mac80211/patches/314-brcmfmac-add-debugfs-entry-for-msgbuf-statistics.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/314-brcmfmac-add-debugfs-entry-for-msgbuf-statistics.patch | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/314-brcmfmac-add-debugfs-entry-for-msgbuf-statistics.patch b/package/kernel/mac80211/patches/314-brcmfmac-add-debugfs-entry-for-msgbuf-statistics.patch new file mode 100644 index 0000000000..9768ef2771 --- /dev/null +++ b/package/kernel/mac80211/patches/314-brcmfmac-add-debugfs-entry-for-msgbuf-statistics.patch @@ -0,0 +1,87 @@ +From: Franky Lin <frankyl@broadcom.com> +Date: Thu, 20 Aug 2015 22:06:04 +0200 +Subject: [PATCH] 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> +--- + +--- 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 + } + } + ++#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 brc + 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: |