drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (c) Meta Platforms, Inc. and affiliates. */
   3
   4 #include <linux/debugfs.h>
   5 #include <linux/pci.h>
   6 #include <linux/rtnetlink.h>
   7 #include <linux/seq_file.h>
   8
   9 #include "fbnic.h"
  10
  11 static struct dentry *fbnic_dbg_root;
  12
  13 static int fbnic_dbg_pcie_stats_show(struct seq_file *s, void *v)
  14 {
  15         struct fbnic_dev *fbd = s->private;
  16
  17         rtnl_lock();
  18         fbnic_get_hw_stats(fbd);
  19
  20         seq_printf(s, "ob_rd_tlp: %llu\n", fbd->hw_stats.pcie.ob_rd_tlp.value);
  21         seq_printf(s, "ob_rd_dword: %llu\n",
  22                    fbd->hw_stats.pcie.ob_rd_dword.value);
  23         seq_printf(s, "ob_wr_tlp: %llu\n", fbd->hw_stats.pcie.ob_wr_tlp.value);
  24         seq_printf(s, "ob_wr_dword: %llu\n",
  25                    fbd->hw_stats.pcie.ob_wr_dword.value);
  26         seq_printf(s, "ob_cpl_tlp: %llu\n",
  27                    fbd->hw_stats.pcie.ob_cpl_tlp.value);
  28         seq_printf(s, "ob_cpl_dword: %llu\n",
  29                    fbd->hw_stats.pcie.ob_cpl_dword.value);
  30         seq_printf(s, "ob_rd_no_tag: %llu\n",
  31                    fbd->hw_stats.pcie.ob_rd_no_tag.value);
  32         seq_printf(s, "ob_rd_no_cpl_cred: %llu\n",
  33                    fbd->hw_stats.pcie.ob_rd_no_cpl_cred.value);
  34         seq_printf(s, "ob_rd_no_np_cred: %llu\n",
  35                    fbd->hw_stats.pcie.ob_rd_no_np_cred.value);
  36         rtnl_unlock();
  37
  38         return 0;
  39 }
  40
  41 DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_pcie_stats);
  42
  43 void fbnic_dbg_fbd_init(struct fbnic_dev *fbd)
  44 {
  45         struct pci_dev *pdev = to_pci_dev(fbd->dev);
  46         const char *name = pci_name(pdev);
  47
  48         fbd->dbg_fbd = debugfs_create_dir(name, fbnic_dbg_root);
  49         debugfs_create_file("pcie_stats", 0400, fbd->dbg_fbd, fbd,
  50                             &fbnic_dbg_pcie_stats_fops);
  51 }
  52
  53 void fbnic_dbg_fbd_exit(struct fbnic_dev *fbd)
  54 {
  55         debugfs_remove_recursive(fbd->dbg_fbd);
  56         fbd->dbg_fbd = NULL;
  57 }
  58
  59 void fbnic_dbg_init(void)
  60 {
  61         fbnic_dbg_root = debugfs_create_dir(fbnic_driver_name, NULL);
  62 }
  63
  64 void fbnic_dbg_exit(void)
  65 {
  66         debugfs_remove_recursive(fbnic_dbg_root);
  67         fbnic_dbg_root = NULL;
  68 }