diff options
Diffstat (limited to 'drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c b/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c new file mode 100644 index 000000000000..e8f2d7f2d962 --- /dev/null +++ b/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c @@ -0,0 +1,242 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) Meta Platforms, Inc. and affiliates. */ + +#include <linux/debugfs.h> +#include <linux/pci.h> +#include <linux/rtnetlink.h> +#include <linux/seq_file.h> + +#include "fbnic.h" + +static struct dentry *fbnic_dbg_root; + +static void fbnic_dbg_desc_break(struct seq_file *s, int i) +{ + while (i--) + seq_putc(s, '-'); + + seq_putc(s, '\n'); +} + +static int fbnic_dbg_mac_addr_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + char hdr[80]; + int i; + + /* Generate Header */ + snprintf(hdr, sizeof(hdr), "%3s %s %-17s %s\n", + "Idx", "S", "TCAM Bitmap", "Addr/Mask"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + for (i = 0; i < FBNIC_RPC_TCAM_MACDA_NUM_ENTRIES; i++) { + struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[i]; + + seq_printf(s, "%02d %d %64pb %pm\n", + i, mac_addr->state, mac_addr->act_tcam, + mac_addr->value.addr8); + seq_printf(s, " %pm\n", + mac_addr->mask.addr8); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_mac_addr); + +static int fbnic_dbg_tce_tcam_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + int i, tcam_idx = 0; + char hdr[80]; + + /* Generate Header */ + snprintf(hdr, sizeof(hdr), "%3s %s %-17s %s\n", + "Idx", "S", "TCAM Bitmap", "Addr/Mask"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + for (i = 0; i < ARRAY_SIZE(fbd->mac_addr); i++) { + struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[i]; + + /* Verify BMC bit is set */ + if (!test_bit(FBNIC_MAC_ADDR_T_BMC, mac_addr->act_tcam)) + continue; + + if (tcam_idx == FBNIC_TCE_TCAM_NUM_ENTRIES) + break; + + seq_printf(s, "%02d %d %64pb %pm\n", + tcam_idx, mac_addr->state, mac_addr->act_tcam, + mac_addr->value.addr8); + seq_printf(s, " %pm\n", + mac_addr->mask.addr8); + tcam_idx++; + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_tce_tcam); + +static int fbnic_dbg_act_tcam_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + char hdr[80]; + int i; + + /* Generate Header */ + snprintf(hdr, sizeof(hdr), "%3s %s %-55s %-4s %s\n", + "Idx", "S", "Value/Mask", "RSS", "Dest"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + for (i = 0; i < FBNIC_RPC_TCAM_ACT_NUM_ENTRIES; i++) { + struct fbnic_act_tcam *act_tcam = &fbd->act_tcam[i]; + + seq_printf(s, "%02d %d %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %08x\n", + i, act_tcam->state, + act_tcam->value.tcam[10], act_tcam->value.tcam[9], + act_tcam->value.tcam[8], act_tcam->value.tcam[7], + act_tcam->value.tcam[6], act_tcam->value.tcam[5], + act_tcam->value.tcam[4], act_tcam->value.tcam[3], + act_tcam->value.tcam[2], act_tcam->value.tcam[1], + act_tcam->value.tcam[0], act_tcam->rss_en_mask, + act_tcam->dest); + seq_printf(s, " %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x\n", + act_tcam->mask.tcam[10], act_tcam->mask.tcam[9], + act_tcam->mask.tcam[8], act_tcam->mask.tcam[7], + act_tcam->mask.tcam[6], act_tcam->mask.tcam[5], + act_tcam->mask.tcam[4], act_tcam->mask.tcam[3], + act_tcam->mask.tcam[2], act_tcam->mask.tcam[1], + act_tcam->mask.tcam[0]); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_act_tcam); + +static int fbnic_dbg_ip_addr_show(struct seq_file *s, + struct fbnic_ip_addr *ip_addr) +{ + char hdr[80]; + int i; + + /* Generate Header */ + snprintf(hdr, sizeof(hdr), "%3s %s %-17s %s %s\n", + "Idx", "S", "TCAM Bitmap", "V", "Addr/Mask"); + seq_puts(s, hdr); + fbnic_dbg_desc_break(s, strnlen(hdr, sizeof(hdr))); + + for (i = 0; i < FBNIC_RPC_TCAM_IP_ADDR_NUM_ENTRIES; i++, ip_addr++) { + seq_printf(s, "%02d %d %64pb %d %pi6\n", + i, ip_addr->state, ip_addr->act_tcam, + ip_addr->version, &ip_addr->value); + seq_printf(s, " %pi6\n", + &ip_addr->mask); + } + + return 0; +} + +static int fbnic_dbg_ip_src_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + + return fbnic_dbg_ip_addr_show(s, fbd->ip_src); +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ip_src); + +static int fbnic_dbg_ip_dst_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + + return fbnic_dbg_ip_addr_show(s, fbd->ip_dst); +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ip_dst); + +static int fbnic_dbg_ipo_src_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + + return fbnic_dbg_ip_addr_show(s, fbd->ipo_src); +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ipo_src); + +static int fbnic_dbg_ipo_dst_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + + return fbnic_dbg_ip_addr_show(s, fbd->ipo_dst); +} +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_ipo_dst); + +static int fbnic_dbg_pcie_stats_show(struct seq_file *s, void *v) +{ + struct fbnic_dev *fbd = s->private; + + rtnl_lock(); + fbnic_get_hw_stats(fbd); + + seq_printf(s, "ob_rd_tlp: %llu\n", fbd->hw_stats.pcie.ob_rd_tlp.value); + seq_printf(s, "ob_rd_dword: %llu\n", + fbd->hw_stats.pcie.ob_rd_dword.value); + seq_printf(s, "ob_wr_tlp: %llu\n", fbd->hw_stats.pcie.ob_wr_tlp.value); + seq_printf(s, "ob_wr_dword: %llu\n", + fbd->hw_stats.pcie.ob_wr_dword.value); + seq_printf(s, "ob_cpl_tlp: %llu\n", + fbd->hw_stats.pcie.ob_cpl_tlp.value); + seq_printf(s, "ob_cpl_dword: %llu\n", + fbd->hw_stats.pcie.ob_cpl_dword.value); + seq_printf(s, "ob_rd_no_tag: %llu\n", + fbd->hw_stats.pcie.ob_rd_no_tag.value); + seq_printf(s, "ob_rd_no_cpl_cred: %llu\n", + fbd->hw_stats.pcie.ob_rd_no_cpl_cred.value); + seq_printf(s, "ob_rd_no_np_cred: %llu\n", + fbd->hw_stats.pcie.ob_rd_no_np_cred.value); + rtnl_unlock(); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_pcie_stats); + +void fbnic_dbg_fbd_init(struct fbnic_dev *fbd) +{ + struct pci_dev *pdev = to_pci_dev(fbd->dev); + const char *name = pci_name(pdev); + + fbd->dbg_fbd = debugfs_create_dir(name, fbnic_dbg_root); + debugfs_create_file("pcie_stats", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_pcie_stats_fops); + debugfs_create_file("mac_addr", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_mac_addr_fops); + debugfs_create_file("tce_tcam", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_tce_tcam_fops); + debugfs_create_file("act_tcam", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_act_tcam_fops); + debugfs_create_file("ip_src", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_ip_src_fops); + debugfs_create_file("ip_dst", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_ip_dst_fops); + debugfs_create_file("ipo_src", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_ipo_src_fops); + debugfs_create_file("ipo_dst", 0400, fbd->dbg_fbd, fbd, + &fbnic_dbg_ipo_dst_fops); +} + +void fbnic_dbg_fbd_exit(struct fbnic_dev *fbd) +{ + debugfs_remove_recursive(fbd->dbg_fbd); + fbd->dbg_fbd = NULL; +} + +void fbnic_dbg_init(void) +{ + fbnic_dbg_root = debugfs_create_dir(fbnic_driver_name, NULL); +} + +void fbnic_dbg_exit(void) +{ + debugfs_remove_recursive(fbnic_dbg_root); + fbnic_dbg_root = NULL; +} |