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// SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
/*
* Copyright (c) 2024, Broadcom. All rights reserved. The term
* Broadcom refers to Broadcom Limited and/or its subsidiaries.
*
* Description: Debugfs component of the bnxt_re driver
*/
#include <linux/debugfs.h>
#include <linux/pci.h>
#include <rdma/ib_addr.h>
#include "bnxt_ulp.h"
#include "roce_hsi.h"
#include "qplib_res.h"
#include "qplib_sp.h"
#include "qplib_fp.h"
#include "qplib_rcfw.h"
#include "bnxt_re.h"
#include "ib_verbs.h"
#include "debugfs.h"
static struct dentry *bnxt_re_debugfs_root;
static inline const char *bnxt_re_qp_state_str(u8 state)
{
switch (state) {
case CMDQ_MODIFY_QP_NEW_STATE_RESET:
return "RST";
case CMDQ_MODIFY_QP_NEW_STATE_INIT:
return "INIT";
case CMDQ_MODIFY_QP_NEW_STATE_RTR:
return "RTR";
case CMDQ_MODIFY_QP_NEW_STATE_RTS:
return "RTS";
case CMDQ_MODIFY_QP_NEW_STATE_SQE:
return "SQER";
case CMDQ_MODIFY_QP_NEW_STATE_SQD:
return "SQD";
case CMDQ_MODIFY_QP_NEW_STATE_ERR:
return "ERR";
default:
return "Invalid QP state";
}
}
static inline const char *bnxt_re_qp_type_str(u8 type)
{
switch (type) {
case CMDQ_CREATE_QP1_TYPE_GSI: return "QP1";
case CMDQ_CREATE_QP_TYPE_GSI: return "QP1";
case CMDQ_CREATE_QP_TYPE_RC: return "RC";
case CMDQ_CREATE_QP_TYPE_UD: return "UD";
case CMDQ_CREATE_QP_TYPE_RAW_ETHERTYPE: return "RAW_ETHERTYPE";
default: return "Invalid transport type";
}
}
static ssize_t qp_info_read(struct file *filep,
char __user *buffer,
size_t count, loff_t *ppos)
{
struct bnxt_re_qp *qp = filep->private_data;
char *buf;
int len;
if (*ppos)
return 0;
buf = kasprintf(GFP_KERNEL,
"QPN\t\t: %d\n"
"transport\t: %s\n"
"state\t\t: %s\n"
"mtu\t\t: %d\n"
"timeout\t\t: %d\n"
"remote QPN\t: %d\n",
qp->qplib_qp.id,
bnxt_re_qp_type_str(qp->qplib_qp.type),
bnxt_re_qp_state_str(qp->qplib_qp.state),
qp->qplib_qp.mtu,
qp->qplib_qp.timeout,
qp->qplib_qp.dest_qpn);
if (!buf)
return -ENOMEM;
if (count < strlen(buf)) {
kfree(buf);
return -ENOSPC;
}
len = simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
kfree(buf);
return len;
}
static const struct file_operations debugfs_qp_fops = {
.owner = THIS_MODULE,
.open = simple_open,
.read = qp_info_read,
};
void bnxt_re_debug_add_qpinfo(struct bnxt_re_dev *rdev, struct bnxt_re_qp *qp)
{
char resn[32];
sprintf(resn, "0x%x", qp->qplib_qp.id);
qp->dentry = debugfs_create_file(resn, 0400, rdev->qp_debugfs, qp, &debugfs_qp_fops);
}
void bnxt_re_debug_rem_qpinfo(struct bnxt_re_dev *rdev, struct bnxt_re_qp *qp)
{
debugfs_remove(qp->dentry);
}
void bnxt_re_debugfs_add_pdev(struct bnxt_re_dev *rdev)
{
struct pci_dev *pdev = rdev->en_dev->pdev;
rdev->dbg_root = debugfs_create_dir(dev_name(&pdev->dev), bnxt_re_debugfs_root);
rdev->qp_debugfs = debugfs_create_dir("QPs", rdev->dbg_root);
}
void bnxt_re_debugfs_rem_pdev(struct bnxt_re_dev *rdev)
{
debugfs_remove_recursive(rdev->qp_debugfs);
debugfs_remove_recursive(rdev->dbg_root);
rdev->dbg_root = NULL;
}
void bnxt_re_register_debugfs(void)
{
bnxt_re_debugfs_root = debugfs_create_dir("bnxt_re", NULL);
}
void bnxt_re_unregister_debugfs(void)
{
debugfs_remove(bnxt_re_debugfs_root);
}
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