diff options
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/debugfs.c')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/debugfs.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/debugfs.c b/drivers/infiniband/hw/bnxt_re/debugfs.c new file mode 100644 index 000000000000..7c47039044ef --- /dev/null +++ b/drivers/infiniband/hw/bnxt_re/debugfs.c @@ -0,0 +1,138 @@ +// 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); +} |