Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2bb66a81 authored by Franky Lin's avatar Franky Lin Committed by Kalle Valo
Browse files

brcmfmac: add debugfs entry for msgbuf statistics 



Expose ring buffer read/write pointers and other useful statistics
through debugfs.

Reviewed-by: default avatarArend Van Spriel <arend@broadcom.com>
Reviewed-by: default avatarHante Meuleman <meuleman@broadcom.com>
Reviewed-by: default avatarPieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: default avatarFranky Lin <frankyl@broadcom.com>
Signed-off-by: default avatarArend van Spriel <arend@broadcom.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 0882dda3

drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c

+56 −0
Original line number Diff line number Diff line
@@ -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: