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crypto: caam/qi2 - Add printing dpseci fq stats using debugfs 

Add support of printing the dpseci frame queue statistics using debugfs.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Vakul Garg 2019-07-23 09:14:24 +00:00 committed by Herbert Xu
parent 1b82feb6c5
commit 1c0ab408bb
5 changed files with 105 additions and 0 deletions
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1
drivers/crypto/caam/Makefile
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@ -30,3 +30,4 @@ endif
obj-$(CONFIG_CRYPTO_DEV_FSL_DPAA2_CAAM) += dpaa2_caam.o
dpaa2_caam-y := caamalg_qi2.o dpseci.o
dpaa2_caam-$(CONFIG_DEBUG_FS) += dpseci-debugfs.o

5
drivers/crypto/caam/caamalg_qi2.c
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@ -15,6 +15,7 @@
#include "key_gen.h"
#include "caamalg_desc.h"
#include "caamhash_desc.h"
#include "dpseci-debugfs.h"
#include <linux/fsl/mc.h>
#include <soc/fsl/dpaa2-io.h>
#include <soc/fsl/dpaa2-fd.h>
@ -5098,6 +5099,8 @@ static int dpaa2_caam_probe(struct fsl_mc_device *dpseci_dev)
goto err_bind;
}
dpaa2_dpseci_debugfs_init(priv);
/* register crypto algorithms the device supports */
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
struct caam_skcipher_alg *t_alg = driver_algs + i;
@ -5265,6 +5268,8 @@ static int __cold dpaa2_caam_remove(struct fsl_mc_device *ls_dev)
dev = &ls_dev->dev;
priv = dev_get_drvdata(dev);
dpaa2_dpseci_debugfs_exit(priv);
for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) {
struct caam_aead_alg *t_alg = driver_aeads + i;

2
drivers/crypto/caam/caamalg_qi2.h
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@ -10,6 +10,7 @@
#include <soc/fsl/dpaa2-io.h>
#include <soc/fsl/dpaa2-fd.h>
#include <linux/threads.h>
#include <linux/netdevice.h>
#include "dpseci.h"
#include "desc_constr.h"
@ -64,6 +65,7 @@ struct dpaa2_caam_priv {
struct iommu_domain *domain;
struct dpaa2_caam_priv_per_cpu __percpu *ppriv;
struct dentry *dfs_root;
};
/**

79
drivers/crypto/caam/dpseci-debugfs.c Normal file
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@ -0,0 +1,79 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/* Copyright 2019 NXP */
#include <linux/module.h>
#include <linux/device.h>
#include <linux/debugfs.h>
#include "dpseci-debugfs.h"
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,
};
void dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv)
{
priv->dfs_root = debugfs_create_dir(dev_name(priv->dev), NULL);
debugfs_create_file("fq_stats", 0444, priv->dfs_root, priv,
&dpseci_dbg_fq_ops);
}
void dpaa2_dpseci_debugfs_exit(struct dpaa2_caam_priv *priv)
{
debugfs_remove_recursive(priv->dfs_root);
}

18
drivers/crypto/caam/dpseci-debugfs.h Normal file
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@ -0,0 +1,18 @@
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/* Copyright 2019 NXP */
#ifndef DPSECI_DEBUGFS_H
#define DPSECI_DEBUGFS_H
#include <linux/dcache.h>
#include "caamalg_qi2.h"
#ifdef CONFIG_DEBUG_FS
void dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv);
void dpaa2_dpseci_debugfs_exit(struct dpaa2_caam_priv *priv);
#else
static inline void dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv) {}
static inline void dpaa2_dpseci_debugfs_exit(struct dpaa2_caam_priv *priv) {}
#endif /* CONFIG_DEBUG_FS */
#endif /* DPSECI_DEBUGFS_H */