Commit 086eac9e authored by Srikanth Jampala's avatar Srikanth Jampala Committed by Herbert Xu

crypto: cavium - Add debugfs support in CNN55XX driver.

Add debugfs support in CNN55XX Physical Function driver.
Provides hardware counters and firmware information.
Signed-off-by: default avatarSrikanth Jampala <Jampala.Srikanth@cavium.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 14fa93cd
...@@ -42,6 +42,8 @@ ...@@ -42,6 +42,8 @@
#define NPS_CORE_INT_ACTIVE 0x1000080 #define NPS_CORE_INT_ACTIVE 0x1000080
#define NPS_CORE_INT 0x10000A0 #define NPS_CORE_INT 0x10000A0
#define NPS_CORE_INT_ENA_W1S 0x10000B8 #define NPS_CORE_INT_ENA_W1S 0x10000B8
#define NPS_STATS_PKT_DMA_RD_CNT 0x1000180
#define NPS_STATS_PKT_DMA_WR_CNT 0x1000190
/* NPS packet registers */ /* NPS packet registers */
#define NPS_PKT_INT 0x1040018 #define NPS_PKT_INT 0x1040018
...@@ -78,6 +80,7 @@ ...@@ -78,6 +80,7 @@
#define BMI_INT 0x1140000 #define BMI_INT 0x1140000
#define BMI_CTL 0x1140020 #define BMI_CTL 0x1140020
#define BMI_INT_ENA_W1S 0x1140018 #define BMI_INT_ENA_W1S 0x1140018
#define BMI_NPS_PKT_CNT 0x1140070
/* EFL registers */ /* EFL registers */
#define EFL_CORE_INT_ENA_W1SX(_i) (0x1240018 + ((_i) * 0x400)) #define EFL_CORE_INT_ENA_W1SX(_i) (0x1240018 + ((_i) * 0x400))
...@@ -91,6 +94,7 @@ ...@@ -91,6 +94,7 @@
/* BMO registers */ /* BMO registers */
#define BMO_CTL2 0x1180028 #define BMO_CTL2 0x1180028
#define BMO_NPS_SLC_PKT_CNT 0x1180078
/* LBC registers */ /* LBC registers */
#define LBC_INT 0x1200000 #define LBC_INT 0x1200000
......
...@@ -118,6 +118,7 @@ struct nitrox_bh { ...@@ -118,6 +118,7 @@ struct nitrox_bh {
* @msix: MSI-X information * @msix: MSI-X information
* @bh: post processing work * @bh: post processing work
* @hw: hardware information * @hw: hardware information
* @debugfs_dir: debugfs directory
*/ */
struct nitrox_device { struct nitrox_device {
struct list_head list; struct list_head list;
...@@ -141,6 +142,9 @@ struct nitrox_device { ...@@ -141,6 +142,9 @@ struct nitrox_device {
struct nitrox_bh bh; struct nitrox_bh bh;
struct nitrox_hw hw; struct nitrox_hw hw;
#if IS_ENABLED(CONFIG_DEBUG_FS)
struct dentry *debugfs_dir;
#endif
}; };
/** /**
......
#include <linux/aer.h> #include <linux/aer.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/debugfs.h>
#include <linux/firmware.h> #include <linux/firmware.h>
#include <linux/list.h> #include <linux/list.h>
#include <linux/module.h> #include <linux/module.h>
...@@ -305,6 +306,135 @@ static int nitrox_pf_hw_init(struct nitrox_device *ndev) ...@@ -305,6 +306,135 @@ static int nitrox_pf_hw_init(struct nitrox_device *ndev)
return 0; 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, " Revsion 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. * nitrox_probe - NITROX Initialization function.
* @pdev: PCI device information struct * @pdev: PCI device information struct
...@@ -389,6 +519,10 @@ static int nitrox_probe(struct pci_dev *pdev, ...@@ -389,6 +519,10 @@ static int nitrox_probe(struct pci_dev *pdev,
if (err) if (err)
goto pf_hw_fail; goto pf_hw_fail;
err = nitrox_debugfs_init(ndev);
if (err)
goto pf_hw_fail;
set_bit(NITROX_READY, &ndev->status); set_bit(NITROX_READY, &ndev->status);
/* barrier to sync with other cpus */ /* barrier to sync with other cpus */
smp_mb__after_atomic(); smp_mb__after_atomic();
...@@ -431,6 +565,7 @@ static void nitrox_remove(struct pci_dev *pdev) ...@@ -431,6 +565,7 @@ static void nitrox_remove(struct pci_dev *pdev)
smp_mb__after_atomic(); smp_mb__after_atomic();
nitrox_remove_from_devlist(ndev); nitrox_remove_from_devlist(ndev);
nitrox_debugfs_exit(ndev);
nitrox_pf_sw_cleanup(ndev); nitrox_pf_sw_cleanup(ndev);
iounmap(ndev->bar_addr); iounmap(ndev->bar_addr);
......
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