Add support of printing the dpseci frame queue statistics using debugfs.
Signed-off-by: Vakul Garg <[email protected]>
---
drivers/crypto/caam/caamalg_qi2.c | 95 +++++++++++++++++++++++++++++++++++++++
drivers/crypto/caam/caamalg_qi2.h | 3 ++
2 files changed, 98 insertions(+)
diff --git a/drivers/crypto/caam/caamalg_qi2.c
b/drivers/crypto/caam/caamalg_qi2.c
index 06bf32c32cbd..9414d2149b9a 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -5009,6 +5009,87 @@ static int __cold dpaa2_dpseci_disable(struct
dpaa2_caam_priv *priv)
return 0;
}
+#ifdef CONFIG_DEBUG_FS
+static int dpseci_dbg_fqs_show(struct seq_file *file, void *offset)
+{
+ struct dpaa2_caam_priv *priv = (struct dpaa2_caam_priv *)file->private;
+ u32 fqid, fcnt, bcnt;
+ int i, err;
+
+ seq_printf(file, "FQ stats for %s:\n", dev_name(priv->dev));
+ seq_printf(file, "%s%16s%16s\n",
+ "Rx-VFQID",
+ "Pending frames",
+ "Pending bytes");
+
+ for (i = 0; i < priv->num_pairs; i++) {
+ fqid = priv->rx_queue_attr[i].fqid;
+ err = dpaa2_io_query_fq_count(NULL, fqid, &fcnt, &bcnt);
+ if (err)
+ continue;
+
+ seq_printf(file, "%5d%16u%16u\n", fqid, fcnt, bcnt);
+ }
+
+ seq_printf(file, "%s%16s%16s\n",
+ "Tx-VFQID",
+ "Pending frames",
+ "Pending bytes");
+
+ for (i = 0; i < priv->num_pairs; i++) {
+ fqid = priv->tx_queue_attr[i].fqid;
+ err = dpaa2_io_query_fq_count(NULL, fqid, &fcnt, &bcnt);
+ if (err)
+ continue;
+
+ seq_printf(file, "%5d%16u%16u\n", fqid, fcnt, bcnt);
+ }
+
+ return 0;
+}
+
+static int dpseci_dbg_fqs_open(struct inode *inode, struct file *file)
+{
+ int err;
+ struct dpaa2_caam_priv *priv;
+
+ priv = (struct dpaa2_caam_priv *)inode->i_private;
+
+ err = single_open(file, dpseci_dbg_fqs_show, priv);
+ if (err < 0)
+ dev_err(priv->dev, "single_open() failed\n");
+
+ return err;
+}
+
+static const struct file_operations dpseci_dbg_fq_ops = {
+ .open = dpseci_dbg_fqs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv)
+{
+ struct dentry *res;
+
+ res = debugfs_create_dir(dev_name(priv->dev), NULL);
+ if (IS_ERR_OR_NULL(res))
+ return PTR_ERR(res);
+
+ priv->dfs_root = res;
+
+ res = debugfs_create_file("fq_stats", 0444, res, priv,
+ &dpseci_dbg_fq_ops);
+ if (IS_ERR_OR_NULL(res)) {
+ debugfs_remove_recursive(priv->dfs_root);
+ return PTR_ERR(res);
+ }
+
+ return 0;
+}
+#endif
+
static struct list_head hash_list;
static int dpaa2_caam_probe(struct fsl_mc_device *dpseci_dev)
@@ -5098,6 +5179,14 @@ static int dpaa2_caam_probe(struct fsl_mc_device
*dpseci_dev)
goto err_bind;
}
+#ifdef CONFIG_DEBUG_FS
+ err = dpaa2_dpseci_debugfs_init(priv);
+ if (err) {
+ dev_err(dev, "dpaa2_dpseci_debugfs_init() failed\n");
+ goto err_debugfs;
+ }
+#endif
+
/* register crypto algorithms the device supports */
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
struct caam_skcipher_alg *t_alg = driver_algs + i;
@@ -5242,6 +5331,8 @@ static int dpaa2_caam_probe(struct fsl_mc_device
*dpseci_dev)
return err;
+err_debugfs:
+ dpaa2_dpseci_disable(priv);
err_bind:
dpaa2_dpseci_dpio_free(priv);
err_dpio_setup:
@@ -5265,6 +5356,10 @@ static int __cold dpaa2_caam_remove(struct fsl_mc_device
*ls_dev)
dev = &ls_dev->dev;
priv = dev_get_drvdata(dev);
+#ifdef CONFIG_DEBUG_FS
+ debugfs_remove_recursive(priv->dfs_root);
+#endif
+
for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) {
struct caam_aead_alg *t_alg = driver_aeads + i;
diff --git a/drivers/crypto/caam/caamalg_qi2.h
b/drivers/crypto/caam/caamalg_qi2.h
index 0f207b275578..74644d92f9d7 100644
--- a/drivers/crypto/caam/caamalg_qi2.h
+++ b/drivers/crypto/caam/caamalg_qi2.h
@@ -64,6 +64,9 @@ struct dpaa2_caam_priv {
struct iommu_domain *domain;
struct dpaa2_caam_priv_per_cpu __percpu *ppriv;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *dfs_root;
+#endif
};
/**
--
2.13.6
