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Commit 2a8780be authored by Srikanth Jampala's avatar Srikanth Jampala Committed by Herbert Xu
Browse files

crypto: cavium/nitrox - updated debugfs information.



Updated debugfs to provide device partname and frequency etc.
New file "stats" shows the number of requests posted, dropped and
completed.

Signed-off-by: default avatarSrikanth Jampala <Jampala.Srikanth@cavium.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent fec165c9
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+1 −0
Original line number Diff line number Diff line
@@ -9,3 +9,4 @@ n5pf-objs := nitrox_main.o \
	nitrox_algs.o

n5pf-$(CONFIG_PCI_IOV) += nitrox_sriov.o
n5pf-$(CONFIG_DEBUG_FS) += nitrox_debugfs.o
+113 −0
Original line number Diff line number Diff line
// SPDX-License-Identifier: GPL-2.0
#include <linux/seq_file.h>
#include <linux/debugfs.h>

#include "nitrox_csr.h"
#include "nitrox_dev.h"

static int firmware_show(struct seq_file *s, void *v)
{
	struct nitrox_device *ndev = s->private;

	seq_printf(s, "Version: %s\n", ndev->hw.fw_name);
	return 0;
}

static int firmware_open(struct inode *inode, struct file *file)
{
	return single_open(file, firmware_show, inode->i_private);
}

static const struct file_operations firmware_fops = {
	.owner = THIS_MODULE,
	.open = firmware_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static int device_show(struct seq_file *s, void *v)
{
	struct nitrox_device *ndev = s->private;

	seq_printf(s, "NITROX [%d]\n", ndev->idx);
	seq_printf(s, "  Part Name: %s\n", ndev->hw.partname);
	seq_printf(s, "  Frequency: %d MHz\n", ndev->hw.freq);
	seq_printf(s, "  Device ID: 0x%0x\n", ndev->hw.device_id);
	seq_printf(s, "  Revision ID: 0x%0x\n", ndev->hw.revision_id);
	seq_printf(s, "  Cores: [AE=%u  SE=%u  ZIP=%u]\n",
		   ndev->hw.ae_cores, ndev->hw.se_cores, ndev->hw.zip_cores);

	return 0;
}

static int nitrox_open(struct inode *inode, struct file *file)
{
	return single_open(file, device_show, inode->i_private);
}

static const struct file_operations nitrox_fops = {
	.owner = THIS_MODULE,
	.open = nitrox_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static int stats_show(struct seq_file *s, void *v)
{
	struct nitrox_device *ndev = s->private;

	seq_printf(s, "NITROX [%d] Request Statistics\n", ndev->idx);
	seq_printf(s, "  Posted: %lld\n", atomic64_read(&ndev->stats.posted));
	seq_printf(s, "  Completed: %lld\n",
		   atomic64_read(&ndev->stats.completed));
	seq_printf(s, "  Dropped: %lld\n", atomic64_read(&ndev->stats.dropped));

	return 0;
}

static int nitrox_stats_open(struct inode *inode, struct file *file)
{
	return single_open(file, stats_show, inode->i_private);
}

static const struct file_operations nitrox_stats_fops = {
	.owner = THIS_MODULE,
	.open = nitrox_stats_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

void nitrox_debugfs_exit(struct nitrox_device *ndev)
{
	debugfs_remove_recursive(ndev->debugfs_dir);
	ndev->debugfs_dir = NULL;
}

int nitrox_debugfs_init(struct nitrox_device *ndev)
{
	struct dentry *dir, *f;

	dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
	if (!dir)
		return -ENOMEM;

	ndev->debugfs_dir = dir;
	f = debugfs_create_file("firmware", 0400, dir, ndev, &firmware_fops);
	if (!f)
		goto err;
	f = debugfs_create_file("device", 0400, dir, ndev, &nitrox_fops);
	if (!f)
		goto err;
	f = debugfs_create_file("stats", 0400, dir, ndev, &nitrox_stats_fops);
	if (!f)
		goto err;

	return 0;

err:
	nitrox_debugfs_exit(ndev);
	return -ENODEV;
}
+13 −0
Original line number Diff line number Diff line
@@ -218,4 +218,17 @@ static inline bool nitrox_ready(struct nitrox_device *ndev)
	return atomic_read(&ndev->state) == __NDEV_READY;
}

#ifdef CONFIG_DEBUG_FS
int nitrox_debugfs_init(struct nitrox_device *ndev);
void nitrox_debugfs_exit(struct nitrox_device *ndev);
#else
static inline int nitrox_debugfs_init(struct nitrox_device *ndev)
{
	return 0;
}

static inline void nitrox_debugfs_exit(struct nitrox_device *ndev)
{ }
#endif

#endif /* __NITROX_DEV_H */
+0 −129
Original line number Diff line number Diff line
@@ -323,135 +323,6 @@ static int nitrox_pf_hw_init(struct nitrox_device *ndev)
	return 0;
}

#if IS_ENABLED(CONFIG_DEBUG_FS)
static int registers_show(struct seq_file *s, void *v)
{
	struct nitrox_device *ndev = s->private;
	u64 offset;

	/* NPS DMA stats */
	offset = NPS_STATS_PKT_DMA_RD_CNT;
	seq_printf(s, "NPS_STATS_PKT_DMA_RD_CNT  0x%016llx\n",
		   nitrox_read_csr(ndev, offset));
	offset = NPS_STATS_PKT_DMA_WR_CNT;
	seq_printf(s, "NPS_STATS_PKT_DMA_WR_CNT  0x%016llx\n",
		   nitrox_read_csr(ndev, offset));

	/* BMI/BMO stats */
	offset = BMI_NPS_PKT_CNT;
	seq_printf(s, "BMI_NPS_PKT_CNT  0x%016llx\n",
		   nitrox_read_csr(ndev, offset));
	offset = BMO_NPS_SLC_PKT_CNT;
	seq_printf(s, "BMO_NPS_PKT_CNT  0x%016llx\n",
		   nitrox_read_csr(ndev, offset));

	return 0;
}

static int registers_open(struct inode *inode, struct file *file)
{
	return single_open(file, registers_show, inode->i_private);
}

static const struct file_operations register_fops = {
	.owner = THIS_MODULE,
	.open = registers_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static int firmware_show(struct seq_file *s, void *v)
{
	struct nitrox_device *ndev = s->private;

	seq_printf(s, "Version: %s\n", ndev->hw.fw_name);
	return 0;
}

static int firmware_open(struct inode *inode, struct file *file)
{
	return single_open(file, firmware_show, inode->i_private);
}

static const struct file_operations firmware_fops = {
	.owner = THIS_MODULE,
	.open = firmware_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static int nitrox_show(struct seq_file *s, void *v)
{
	struct nitrox_device *ndev = s->private;

	seq_printf(s, "NITROX-5 [idx: %d]\n", ndev->idx);
	seq_printf(s, "  Revision ID: 0x%0x\n", ndev->hw.revision_id);
	seq_printf(s, "  Cores [AE: %u  SE: %u]\n",
		   ndev->hw.ae_cores, ndev->hw.se_cores);
	seq_printf(s, "  Number of Queues: %u\n", ndev->nr_queues);
	seq_printf(s, "  Queue length: %u\n", ndev->qlen);
	seq_printf(s, "  Node: %u\n", ndev->node);

	return 0;
}

static int nitrox_open(struct inode *inode, struct file *file)
{
	return single_open(file, nitrox_show, inode->i_private);
}

static const struct file_operations nitrox_fops = {
	.owner = THIS_MODULE,
	.open = nitrox_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
};

static void nitrox_debugfs_exit(struct nitrox_device *ndev)
{
	debugfs_remove_recursive(ndev->debugfs_dir);
	ndev->debugfs_dir = NULL;
}

static int nitrox_debugfs_init(struct nitrox_device *ndev)
{
	struct dentry *dir, *f;

	dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
	if (!dir)
		return -ENOMEM;

	ndev->debugfs_dir = dir;
	f = debugfs_create_file("counters", 0400, dir, ndev, &register_fops);
	if (!f)
		goto err;
	f = debugfs_create_file("firmware", 0400, dir, ndev, &firmware_fops);
	if (!f)
		goto err;
	f = debugfs_create_file("nitrox", 0400, dir, ndev, &nitrox_fops);
	if (!f)
		goto err;

	return 0;

err:
	nitrox_debugfs_exit(ndev);
	return -ENODEV;
}
#else
static int nitrox_debugfs_init(struct nitrox_device *ndev)
{
	return 0;
}

static void nitrox_debugfs_exit(struct nitrox_device *ndev)
{
}
#endif

/**
 * nitrox_probe - NITROX Initialization function.
 * @pdev: PCI device information struct