Commit b1dd9bf6 authored by Ioana Ciornei's avatar Ioana Ciornei Committed by David S. Miller
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net: dpaa2-eth: export buffer pool info into a new debugfs file 



Export the allocated buffer pools, the number of buffers that they have
currently and which channels are using which BP.

The output looks like below:

Buffer pool info for eth2:
IDX        BPID      Buf count      CH#0      CH#1      CH#2      CH#3
BP#0         1           5124         x         x         x         x

Signed-off-by: default avatarIoana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 96b44697

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c

+49 −0
Original line number Diff line number Diff line
@@ -119,6 +119,51 @@ static int dpaa2_dbg_ch_show(struct seq_file *file, void *offset) 


DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_ch);



static int dpaa2_dbg_bp_show(struct seq_file *file, void *offset)

{

	struct dpaa2_eth_priv *priv = (struct dpaa2_eth_priv *)file->private;

	int i, j, num_queues, buf_cnt;

	struct dpaa2_eth_bp *bp;

	char ch_name[10];

	int err;



	/* Print out the header */

	seq_printf(file, "Buffer pool info for %s:\n", priv->net_dev->name);

	seq_printf(file, "%s  %10s%15s", "IDX", "BPID", "Buf count");

	num_queues = dpaa2_eth_queue_count(priv);

	for (i = 0; i < num_queues; i++) {

		snprintf(ch_name, sizeof(ch_name), "CH#%d", i);

		seq_printf(file, "%10s", ch_name);

	}

	seq_printf(file, "\n");



	/* For each buffer pool, print out its BPID, the number of buffers in

	 * that buffer pool and the channels which are using it.

	 */

	for (i = 0; i < priv->num_bps; i++) {

		bp = priv->bp[i];



		err = dpaa2_io_query_bp_count(NULL, bp->bpid, &buf_cnt);

		if (err) {

			netdev_warn(priv->net_dev, "Buffer count query error %d\n", err);

			return err;

		}



		seq_printf(file, "%3s%d%10d%15d", "BP#", i, bp->bpid, buf_cnt);

		for (j = 0; j < num_queues; j++) {

			if (priv->channel[j]->bp == bp)

				seq_printf(file, "%10s", "x");

			else

				seq_printf(file, "%10s", "");

		}

		seq_printf(file, "\n");

	}



	return 0;

}



DEFINE_SHOW_ATTRIBUTE(dpaa2_dbg_bp);



void dpaa2_dbg_add(struct dpaa2_eth_priv *priv)

{

	struct fsl_mc_device *dpni_dev;
@@ -139,6 +184,10 @@ void dpaa2_dbg_add(struct dpaa2_eth_priv *priv) 


	/* per-fq stats file */

	debugfs_create_file("ch_stats", 0444, dir, priv, &dpaa2_dbg_ch_fops);



	/* per buffer pool stats file */

	debugfs_create_file("bp_stats", 0444, dir, priv, &dpaa2_dbg_bp_fops);



}



void dpaa2_dbg_remove(struct dpaa2_eth_priv *priv)