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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

drivers/crypto/cavium/nitrox/Makefile

+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

drivers/crypto/cavium/nitrox/nitrox_debugfs.c

0 → 100644
+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;

}

drivers/crypto/cavium/nitrox/nitrox_dev.h

+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 */

drivers/crypto/cavium/nitrox/nitrox_main.c

+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