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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: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ioana Ciornei 2022-10-18 17:18:54 +03:00 committed by David S. Miller
parent 96b44697e5
commit b1dd9bf6ea
1 changed files with 49 additions and 0 deletions
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49
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
View File

@ -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)