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Date: Tue, 28 Dec 2021 22:24:53 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, Muhammad Sammar <muhammads@...dia.com>,
Yevgeny Kliteynik <kliteyn@...dia.com>,
Leon Romanovsky <leonro@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 07/16] net/mlx5: DR, Add support for dumping steering info
From: Muhammad Sammar <muhammads@...dia.com>
Extend mlx5 debugfs support to present Software Steering resources:
dr_domain including it's tables, matchers and rules.
The interface is read-only. While dump is being presented, new steering
rules cannot be inserted/deleted.
The steering information is dumped in the CSV form with the following
format:
<object_type>,<object_ID>, <object_info>,...,<object_info>
This data can be read at the following path:
/sys/kernel/debug/mlx5/<BDF>/steering/fdb/<domain_handle>
Example:
# cat /sys/kernel/debug/mlx5/0000:82:00.0/steering/fdb/dmn_000018644
3100,0x55caa4621c50,0xee802,4,65533
3101,0x55caa4621c50,0xe0100008
Signed-off-by: Muhammad Sammar <muhammads@...dia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@...dia.com>
Reviewed-by: Leon Romanovsky <leonro@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/Makefile | 3 +-
.../mellanox/mlx5/core/steering/dr_dbg.c | 668 ++++++++++++++++++
.../mellanox/mlx5/core/steering/dr_dbg.h | 15 +
.../mellanox/mlx5/core/steering/dr_domain.c | 3 +-
.../mellanox/mlx5/core/steering/dr_matcher.c | 1 +
.../mellanox/mlx5/core/steering/dr_rule.c | 9 +-
.../mellanox/mlx5/core/steering/dr_table.c | 3 +
.../mellanox/mlx5/core/steering/dr_types.h | 13 +-
8 files changed, 707 insertions(+), 8 deletions(-)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index e592e0955c71..33904bc87efa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -104,7 +104,8 @@ mlx5_core-$(CONFIG_MLX5_SW_STEERING) += steering/dr_domain.o steering/dr_table.o
steering/dr_ste.o steering/dr_send.o \
steering/dr_ste_v0.o steering/dr_ste_v1.o \
steering/dr_cmd.o steering/dr_fw.o \
- steering/dr_action.o steering/fs_dr.o
+ steering/dr_action.o steering/fs_dr.o \
+ steering/dr_dbg.o
#
# SF device
#
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c
new file mode 100644
index 000000000000..31ce91f11339
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c
@@ -0,0 +1,668 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+
+#include <linux/debugfs.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include "dr_types.h"
+
+#define BUF_SIZE 512
+#define DR_DBG_PTR_TO_ID(p) ((u64)(uintptr_t)(p) & 0xFFFFFFFFULL)
+
+enum dr_dump_rec_type {
+ DR_DUMP_REC_TYPE_DOMAIN = 3000,
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_FLEX_PARSER = 3001,
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_DEV_ATTR = 3002,
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_VPORT = 3003,
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_CAPS = 3004,
+ DR_DUMP_REC_TYPE_DOMAIN_SEND_RING = 3005,
+
+ DR_DUMP_REC_TYPE_TABLE = 3100,
+ DR_DUMP_REC_TYPE_TABLE_RX = 3101,
+ DR_DUMP_REC_TYPE_TABLE_TX = 3102,
+
+ DR_DUMP_REC_TYPE_MATCHER = 3200,
+ DR_DUMP_REC_TYPE_MATCHER_MASK = 3201,
+ DR_DUMP_REC_TYPE_MATCHER_RX = 3202,
+ DR_DUMP_REC_TYPE_MATCHER_TX = 3203,
+ DR_DUMP_REC_TYPE_MATCHER_BUILDER = 3204,
+
+ DR_DUMP_REC_TYPE_RULE = 3300,
+ DR_DUMP_REC_TYPE_RULE_RX_ENTRY_V0 = 3301,
+ DR_DUMP_REC_TYPE_RULE_TX_ENTRY_V0 = 3302,
+ DR_DUMP_REC_TYPE_RULE_RX_ENTRY_V1 = 3303,
+ DR_DUMP_REC_TYPE_RULE_TX_ENTRY_V1 = 3304,
+
+ DR_DUMP_REC_TYPE_ACTION_ENCAP_L2 = 3400,
+ DR_DUMP_REC_TYPE_ACTION_ENCAP_L3 = 3401,
+ DR_DUMP_REC_TYPE_ACTION_MODIFY_HDR = 3402,
+ DR_DUMP_REC_TYPE_ACTION_DROP = 3403,
+ DR_DUMP_REC_TYPE_ACTION_QP = 3404,
+ DR_DUMP_REC_TYPE_ACTION_FT = 3405,
+ DR_DUMP_REC_TYPE_ACTION_CTR = 3406,
+ DR_DUMP_REC_TYPE_ACTION_TAG = 3407,
+ DR_DUMP_REC_TYPE_ACTION_VPORT = 3408,
+ DR_DUMP_REC_TYPE_ACTION_DECAP_L2 = 3409,
+ DR_DUMP_REC_TYPE_ACTION_DECAP_L3 = 3410,
+ DR_DUMP_REC_TYPE_ACTION_DEVX_TIR = 3411,
+ DR_DUMP_REC_TYPE_ACTION_PUSH_VLAN = 3412,
+ DR_DUMP_REC_TYPE_ACTION_POP_VLAN = 3413,
+ DR_DUMP_REC_TYPE_ACTION_SAMPLER = 3415,
+ DR_DUMP_REC_TYPE_ACTION_INSERT_HDR = 3420,
+ DR_DUMP_REC_TYPE_ACTION_REMOVE_HDR = 3421
+};
+
+void mlx5dr_dbg_tbl_add(struct mlx5dr_table *tbl)
+{
+ mutex_lock(&tbl->dmn->dump_info.dbg_mutex);
+ list_add_tail(&tbl->dbg_node, &tbl->dmn->dbg_tbl_list);
+ mutex_unlock(&tbl->dmn->dump_info.dbg_mutex);
+}
+
+void mlx5dr_dbg_tbl_del(struct mlx5dr_table *tbl)
+{
+ mutex_lock(&tbl->dmn->dump_info.dbg_mutex);
+ list_del(&tbl->dbg_node);
+ mutex_unlock(&tbl->dmn->dump_info.dbg_mutex);
+}
+
+void mlx5dr_dbg_rule_add(struct mlx5dr_rule *rule)
+{
+ struct mlx5dr_domain *dmn = rule->matcher->tbl->dmn;
+
+ mutex_lock(&dmn->dump_info.dbg_mutex);
+ list_add_tail(&rule->dbg_node, &rule->matcher->dbg_rule_list);
+ mutex_unlock(&dmn->dump_info.dbg_mutex);
+}
+
+void mlx5dr_dbg_rule_del(struct mlx5dr_rule *rule)
+{
+ struct mlx5dr_domain *dmn = rule->matcher->tbl->dmn;
+
+ mutex_lock(&dmn->dump_info.dbg_mutex);
+ list_del(&rule->dbg_node);
+ mutex_unlock(&dmn->dump_info.dbg_mutex);
+}
+
+static u64 dr_dump_icm_to_idx(u64 icm_addr)
+{
+ return (icm_addr >> 6) & 0xffffffff;
+}
+
+static void
+dr_dump_hex_print(char *dest, u32 dest_size, char *src, u32 src_size)
+{
+ int i;
+
+ if (dest_size < 2 * src_size)
+ return;
+
+ for (i = 0; i < src_size; i++)
+ snprintf(&dest[2 * i], BUF_SIZE, "%02x", (u8)src[i]);
+}
+
+static int
+dr_dump_rule_action_mem(struct seq_file *file, const u64 rule_id,
+ struct mlx5dr_rule_action_member *action_mem)
+{
+ struct mlx5dr_action *action = action_mem->action;
+ const u64 action_id = DR_DBG_PTR_TO_ID(action);
+
+ switch (action->action_type) {
+ case DR_ACTION_TYP_DROP:
+ seq_printf(file, "%d,0x%llx,0x%llx\n",
+ DR_DUMP_REC_TYPE_ACTION_DROP, action_id, rule_id);
+ break;
+ case DR_ACTION_TYP_FT:
+ if (action->dest_tbl->is_fw_tbl)
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_FT, action_id,
+ rule_id, action->dest_tbl->fw_tbl.id);
+ else
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_FT, action_id,
+ rule_id, action->dest_tbl->tbl->table_id);
+
+ break;
+ case DR_ACTION_TYP_CTR:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_CTR, action_id, rule_id,
+ action->ctr->ctr_id + action->ctr->offset);
+ break;
+ case DR_ACTION_TYP_TAG:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_TAG, action_id, rule_id,
+ action->flow_tag->flow_tag);
+ break;
+ case DR_ACTION_TYP_MODIFY_HDR:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_MODIFY_HDR, action_id,
+ rule_id, action->rewrite->index);
+ break;
+ case DR_ACTION_TYP_VPORT:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_VPORT, action_id, rule_id,
+ action->vport->caps->num);
+ break;
+ case DR_ACTION_TYP_TNL_L2_TO_L2:
+ seq_printf(file, "%d,0x%llx,0x%llx\n",
+ DR_DUMP_REC_TYPE_ACTION_DECAP_L2, action_id,
+ rule_id);
+ break;
+ case DR_ACTION_TYP_TNL_L3_TO_L2:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_DECAP_L3, action_id,
+ rule_id, action->rewrite->index);
+ break;
+ case DR_ACTION_TYP_L2_TO_TNL_L2:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_ENCAP_L2, action_id,
+ rule_id, action->reformat->id);
+ break;
+ case DR_ACTION_TYP_L2_TO_TNL_L3:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_ENCAP_L3, action_id,
+ rule_id, action->reformat->id);
+ break;
+ case DR_ACTION_TYP_POP_VLAN:
+ seq_printf(file, "%d,0x%llx,0x%llx\n",
+ DR_DUMP_REC_TYPE_ACTION_POP_VLAN, action_id,
+ rule_id);
+ break;
+ case DR_ACTION_TYP_PUSH_VLAN:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_PUSH_VLAN, action_id,
+ rule_id, action->push_vlan->vlan_hdr);
+ break;
+ case DR_ACTION_TYP_INSERT_HDR:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_INSERT_HDR, action_id,
+ rule_id, action->reformat->id,
+ action->reformat->param_0,
+ action->reformat->param_1);
+ break;
+ case DR_ACTION_TYP_REMOVE_HDR:
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x\n",
+ DR_DUMP_REC_TYPE_ACTION_REMOVE_HDR, action_id,
+ rule_id, action->reformat->id,
+ action->reformat->param_0,
+ action->reformat->param_1);
+ break;
+ case DR_ACTION_TYP_SAMPLER:
+ seq_printf(file,
+ "%d,0x%llx,0x%llx,0x%x,0x%x,0x%x,0x%llx,0x%llx\n",
+ DR_DUMP_REC_TYPE_ACTION_SAMPLER, action_id, rule_id,
+ 0, 0, action->sampler->sampler_id,
+ action->sampler->rx_icm_addr,
+ action->sampler->tx_icm_addr);
+ break;
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
+static int
+dr_dump_rule_mem(struct seq_file *file, struct mlx5dr_ste *ste,
+ bool is_rx, const u64 rule_id, u8 format_ver)
+{
+ char hw_ste_dump[BUF_SIZE] = {};
+ u32 mem_rec_type;
+
+ if (format_ver == MLX5_STEERING_FORMAT_CONNECTX_5) {
+ mem_rec_type = is_rx ? DR_DUMP_REC_TYPE_RULE_RX_ENTRY_V0 :
+ DR_DUMP_REC_TYPE_RULE_TX_ENTRY_V0;
+ } else {
+ mem_rec_type = is_rx ? DR_DUMP_REC_TYPE_RULE_RX_ENTRY_V1 :
+ DR_DUMP_REC_TYPE_RULE_TX_ENTRY_V1;
+ }
+
+ dr_dump_hex_print(hw_ste_dump, BUF_SIZE, (char *)ste->hw_ste,
+ DR_STE_SIZE_REDUCED);
+
+ seq_printf(file, "%d,0x%llx,0x%llx,%s\n", mem_rec_type,
+ dr_dump_icm_to_idx(mlx5dr_ste_get_icm_addr(ste)), rule_id,
+ hw_ste_dump);
+
+ return 0;
+}
+
+static int
+dr_dump_rule_rx_tx(struct seq_file *file, struct mlx5dr_rule_rx_tx *rule_rx_tx,
+ bool is_rx, const u64 rule_id, u8 format_ver)
+{
+ struct mlx5dr_ste *ste_arr[DR_RULE_MAX_STES + DR_ACTION_MAX_STES];
+ struct mlx5dr_ste *curr_ste = rule_rx_tx->last_rule_ste;
+ int ret, i;
+
+ if (mlx5dr_rule_get_reverse_rule_members(ste_arr, curr_ste, &i))
+ return 0;
+
+ while (i--) {
+ ret = dr_dump_rule_mem(file, ste_arr[i], is_rx, rule_id,
+ format_ver);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dr_dump_rule(struct seq_file *file, struct mlx5dr_rule *rule)
+{
+ struct mlx5dr_rule_action_member *action_mem;
+ const u64 rule_id = DR_DBG_PTR_TO_ID(rule);
+ struct mlx5dr_rule_rx_tx *rx = &rule->rx;
+ struct mlx5dr_rule_rx_tx *tx = &rule->tx;
+ u8 format_ver;
+ int ret;
+
+ format_ver = rule->matcher->tbl->dmn->info.caps.sw_format_ver;
+
+ seq_printf(file, "%d,0x%llx,0x%llx\n", DR_DUMP_REC_TYPE_RULE, rule_id,
+ DR_DBG_PTR_TO_ID(rule->matcher));
+
+ if (rx->nic_matcher) {
+ ret = dr_dump_rule_rx_tx(file, rx, true, rule_id, format_ver);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (tx->nic_matcher) {
+ ret = dr_dump_rule_rx_tx(file, tx, false, rule_id, format_ver);
+ if (ret < 0)
+ return ret;
+ }
+
+ list_for_each_entry(action_mem, &rule->rule_actions_list, list) {
+ ret = dr_dump_rule_action_mem(file, rule_id, action_mem);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+dr_dump_matcher_mask(struct seq_file *file, struct mlx5dr_match_param *mask,
+ u8 criteria, const u64 matcher_id)
+{
+ char dump[BUF_SIZE] = {};
+
+ seq_printf(file, "%d,0x%llx,", DR_DUMP_REC_TYPE_MATCHER_MASK,
+ matcher_id);
+
+ if (criteria & DR_MATCHER_CRITERIA_OUTER) {
+ dr_dump_hex_print(dump, BUF_SIZE, (char *)&mask->outer,
+ sizeof(mask->outer));
+ seq_printf(file, "%s,", dump);
+ } else {
+ seq_puts(file, ",");
+ }
+
+ if (criteria & DR_MATCHER_CRITERIA_INNER) {
+ dr_dump_hex_print(dump, BUF_SIZE, (char *)&mask->inner,
+ sizeof(mask->inner));
+ seq_printf(file, "%s,", dump);
+ } else {
+ seq_puts(file, ",");
+ }
+
+ if (criteria & DR_MATCHER_CRITERIA_MISC) {
+ dr_dump_hex_print(dump, BUF_SIZE, (char *)&mask->misc,
+ sizeof(mask->misc));
+ seq_printf(file, "%s,", dump);
+ } else {
+ seq_puts(file, ",");
+ }
+
+ if (criteria & DR_MATCHER_CRITERIA_MISC2) {
+ dr_dump_hex_print(dump, BUF_SIZE, (char *)&mask->misc2,
+ sizeof(mask->misc2));
+ seq_printf(file, "%s,", dump);
+ } else {
+ seq_puts(file, ",");
+ }
+
+ if (criteria & DR_MATCHER_CRITERIA_MISC3) {
+ dr_dump_hex_print(dump, BUF_SIZE, (char *)&mask->misc3,
+ sizeof(mask->misc3));
+ seq_printf(file, "%s\n", dump);
+ } else {
+ seq_puts(file, ",\n");
+ }
+
+ return 0;
+}
+
+static int
+dr_dump_matcher_builder(struct seq_file *file, struct mlx5dr_ste_build *builder,
+ u32 index, bool is_rx, const u64 matcher_id)
+{
+ seq_printf(file, "%d,0x%llx,%d,%d,0x%x\n",
+ DR_DUMP_REC_TYPE_MATCHER_BUILDER, matcher_id, index, is_rx,
+ builder->lu_type);
+
+ return 0;
+}
+
+static int
+dr_dump_matcher_rx_tx(struct seq_file *file, bool is_rx,
+ struct mlx5dr_matcher_rx_tx *matcher_rx_tx,
+ const u64 matcher_id)
+{
+ enum dr_dump_rec_type rec_type;
+ int i, ret;
+
+ rec_type = is_rx ? DR_DUMP_REC_TYPE_MATCHER_RX :
+ DR_DUMP_REC_TYPE_MATCHER_TX;
+
+ seq_printf(file, "%d,0x%llx,0x%llx,%d,0x%llx,0x%llx\n",
+ rec_type, DR_DBG_PTR_TO_ID(matcher_rx_tx),
+ matcher_id, matcher_rx_tx->num_of_builders,
+ dr_dump_icm_to_idx(matcher_rx_tx->s_htbl->chunk->icm_addr),
+ dr_dump_icm_to_idx(matcher_rx_tx->e_anchor->chunk->icm_addr));
+
+ for (i = 0; i < matcher_rx_tx->num_of_builders; i++) {
+ ret = dr_dump_matcher_builder(file,
+ &matcher_rx_tx->ste_builder[i],
+ i, is_rx, matcher_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+dr_dump_matcher(struct seq_file *file, struct mlx5dr_matcher *matcher)
+{
+ struct mlx5dr_matcher_rx_tx *rx = &matcher->rx;
+ struct mlx5dr_matcher_rx_tx *tx = &matcher->tx;
+ u64 matcher_id;
+ int ret;
+
+ matcher_id = DR_DBG_PTR_TO_ID(matcher);
+
+ seq_printf(file, "%d,0x%llx,0x%llx,%d\n", DR_DUMP_REC_TYPE_MATCHER,
+ matcher_id, DR_DBG_PTR_TO_ID(matcher->tbl), matcher->prio);
+
+ ret = dr_dump_matcher_mask(file, &matcher->mask,
+ matcher->match_criteria, matcher_id);
+ if (ret < 0)
+ return ret;
+
+ if (rx->nic_tbl) {
+ ret = dr_dump_matcher_rx_tx(file, true, rx, matcher_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (tx->nic_tbl) {
+ ret = dr_dump_matcher_rx_tx(file, false, tx, matcher_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+dr_dump_matcher_all(struct seq_file *file, struct mlx5dr_matcher *matcher)
+{
+ struct mlx5dr_rule *rule;
+ int ret;
+
+ ret = dr_dump_matcher(file, matcher);
+ if (ret < 0)
+ return ret;
+
+ list_for_each_entry(rule, &matcher->dbg_rule_list, dbg_node) {
+ ret = dr_dump_rule(file, rule);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+dr_dump_table_rx_tx(struct seq_file *file, bool is_rx,
+ struct mlx5dr_table_rx_tx *table_rx_tx,
+ const u64 table_id)
+{
+ enum dr_dump_rec_type rec_type;
+
+ rec_type = is_rx ? DR_DUMP_REC_TYPE_TABLE_RX :
+ DR_DUMP_REC_TYPE_TABLE_TX;
+
+ seq_printf(file, "%d,0x%llx,0x%llx\n", rec_type, table_id,
+ dr_dump_icm_to_idx(table_rx_tx->s_anchor->chunk->icm_addr));
+
+ return 0;
+}
+
+static int dr_dump_table(struct seq_file *file, struct mlx5dr_table *table)
+{
+ struct mlx5dr_table_rx_tx *rx = &table->rx;
+ struct mlx5dr_table_rx_tx *tx = &table->tx;
+ int ret;
+
+ seq_printf(file, "%d,0x%llx,0x%llx,%d,%d\n", DR_DUMP_REC_TYPE_TABLE,
+ DR_DBG_PTR_TO_ID(table), DR_DBG_PTR_TO_ID(table->dmn),
+ table->table_type, table->level);
+
+ if (rx->nic_dmn) {
+ ret = dr_dump_table_rx_tx(file, true, rx,
+ DR_DBG_PTR_TO_ID(table));
+ if (ret < 0)
+ return ret;
+ }
+
+ if (tx->nic_dmn) {
+ ret = dr_dump_table_rx_tx(file, false, tx,
+ DR_DBG_PTR_TO_ID(table));
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
+static int dr_dump_table_all(struct seq_file *file, struct mlx5dr_table *tbl)
+{
+ struct mlx5dr_matcher *matcher;
+ int ret;
+
+ ret = dr_dump_table(file, tbl);
+ if (ret < 0)
+ return ret;
+
+ list_for_each_entry(matcher, &tbl->matcher_list, list_node) {
+ ret = dr_dump_matcher_all(file, matcher);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
+static int
+dr_dump_send_ring(struct seq_file *file, struct mlx5dr_send_ring *ring,
+ const u64 domain_id)
+{
+ seq_printf(file, "%d,0x%llx,0x%llx,0x%x,0x%x\n",
+ DR_DUMP_REC_TYPE_DOMAIN_SEND_RING, DR_DBG_PTR_TO_ID(ring),
+ domain_id, ring->cq->mcq.cqn, ring->qp->qpn);
+ return 0;
+}
+
+static int
+dr_dump_domain_info_flex_parser(struct seq_file *file,
+ const char *flex_parser_name,
+ const u8 flex_parser_value,
+ const u64 domain_id)
+{
+ seq_printf(file, "%d,0x%llx,%s,0x%x\n",
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_FLEX_PARSER, domain_id,
+ flex_parser_name, flex_parser_value);
+ return 0;
+}
+
+static int
+dr_dump_domain_info_caps(struct seq_file *file, struct mlx5dr_cmd_caps *caps,
+ const u64 domain_id)
+{
+ struct mlx5dr_cmd_vport_cap *vport_caps;
+ unsigned long i, vports_num;
+
+ xa_for_each(&caps->vports.vports_caps_xa, vports_num, vport_caps)
+ ; /* count the number of vports in xarray */
+
+ seq_printf(file, "%d,0x%llx,0x%x,0x%llx,0x%llx,0x%x,%lu,%d\n",
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_CAPS, domain_id, caps->gvmi,
+ caps->nic_rx_drop_address, caps->nic_tx_drop_address,
+ caps->flex_protocols, vports_num, caps->eswitch_manager);
+
+ xa_for_each(&caps->vports.vports_caps_xa, i, vport_caps) {
+ vport_caps = xa_load(&caps->vports.vports_caps_xa, i);
+
+ seq_printf(file, "%d,0x%llx,%lu,0x%x,0x%llx,0x%llx\n",
+ DR_DUMP_REC_TYPE_DOMAIN_INFO_VPORT, domain_id, i,
+ vport_caps->vport_gvmi, vport_caps->icm_address_rx,
+ vport_caps->icm_address_tx);
+ }
+ return 0;
+}
+
+static int
+dr_dump_domain_info(struct seq_file *file, struct mlx5dr_domain_info *info,
+ const u64 domain_id)
+{
+ int ret;
+
+ ret = dr_dump_domain_info_caps(file, &info->caps, domain_id);
+ if (ret < 0)
+ return ret;
+
+ ret = dr_dump_domain_info_flex_parser(file, "icmp_dw0",
+ info->caps.flex_parser_id_icmp_dw0,
+ domain_id);
+ if (ret < 0)
+ return ret;
+
+ ret = dr_dump_domain_info_flex_parser(file, "icmp_dw1",
+ info->caps.flex_parser_id_icmp_dw1,
+ domain_id);
+ if (ret < 0)
+ return ret;
+
+ ret = dr_dump_domain_info_flex_parser(file, "icmpv6_dw0",
+ info->caps.flex_parser_id_icmpv6_dw0,
+ domain_id);
+ if (ret < 0)
+ return ret;
+
+ ret = dr_dump_domain_info_flex_parser(file, "icmpv6_dw1",
+ info->caps.flex_parser_id_icmpv6_dw1,
+ domain_id);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int
+dr_dump_domain(struct seq_file *file, struct mlx5dr_domain *dmn)
+{
+ u64 domain_id = DR_DBG_PTR_TO_ID(dmn);
+ int ret;
+
+ seq_printf(file, "%d,0x%llx,%d,0%x,%d,%s\n", DR_DUMP_REC_TYPE_DOMAIN,
+ domain_id, dmn->type, dmn->info.caps.gvmi,
+ dmn->info.supp_sw_steering, pci_name(dmn->mdev->pdev));
+
+ ret = dr_dump_domain_info(file, &dmn->info, domain_id);
+ if (ret < 0)
+ return ret;
+
+ if (dmn->info.supp_sw_steering) {
+ ret = dr_dump_send_ring(file, dmn->send_ring, domain_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dr_dump_domain_all(struct seq_file *file, struct mlx5dr_domain *dmn)
+{
+ struct mlx5dr_table *tbl;
+ int ret;
+
+ mutex_lock(&dmn->dump_info.dbg_mutex);
+ mlx5dr_domain_lock(dmn);
+
+ ret = dr_dump_domain(file, dmn);
+ if (ret < 0)
+ goto unlock_mutex;
+
+ list_for_each_entry(tbl, &dmn->dbg_tbl_list, dbg_node) {
+ ret = dr_dump_table_all(file, tbl);
+ if (ret < 0)
+ break;
+ }
+
+unlock_mutex:
+ mlx5dr_domain_unlock(dmn);
+ mutex_unlock(&dmn->dump_info.dbg_mutex);
+ return ret;
+}
+
+static int dr_dump_show(struct seq_file *file, void *priv)
+{
+ return dr_dump_domain_all(file, file->private);
+}
+DEFINE_SHOW_ATTRIBUTE(dr_dump);
+
+void mlx5dr_dbg_init_dump(struct mlx5dr_domain *dmn)
+{
+ struct mlx5_core_dev *dev = dmn->mdev;
+ char file_name[128];
+
+ if (dmn->type != MLX5DR_DOMAIN_TYPE_FDB) {
+ mlx5_core_warn(dev,
+ "Steering dump is not supported for NIC RX/TX domains\n");
+ return;
+ }
+
+ if (!dmn->dump_info.steering_debugfs) {
+ dmn->dump_info.steering_debugfs = debugfs_create_dir("steering",
+ dev->priv.dbg_root);
+ if (!dmn->dump_info.steering_debugfs)
+ return;
+ }
+
+ if (!dmn->dump_info.fdb_debugfs) {
+ dmn->dump_info.fdb_debugfs = debugfs_create_dir("fdb",
+ dmn->dump_info.steering_debugfs);
+ if (!dmn->dump_info.fdb_debugfs) {
+ debugfs_remove_recursive(dmn->dump_info.steering_debugfs);
+ dmn->dump_info.steering_debugfs = NULL;
+ return;
+ }
+ }
+
+ sprintf(file_name, "dmn_%p", dmn);
+ debugfs_create_file(file_name, 0444, dmn->dump_info.fdb_debugfs,
+ dmn, &dr_dump_fops);
+
+ INIT_LIST_HEAD(&dmn->dbg_tbl_list);
+ mutex_init(&dmn->dump_info.dbg_mutex);
+}
+
+void mlx5dr_dbg_uninit_dump(struct mlx5dr_domain *dmn)
+{
+ debugfs_remove_recursive(dmn->dump_info.steering_debugfs);
+ mutex_destroy(&dmn->dump_info.dbg_mutex);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h
new file mode 100644
index 000000000000..def6cf853eea
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/* Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+struct mlx5dr_dbg_dump_info {
+ struct mutex dbg_mutex; /* protect dbg lists */
+ struct dentry *steering_debugfs;
+ struct dentry *fdb_debugfs;
+};
+
+void mlx5dr_dbg_init_dump(struct mlx5dr_domain *dmn);
+void mlx5dr_dbg_uninit_dump(struct mlx5dr_domain *dmn);
+void mlx5dr_dbg_tbl_add(struct mlx5dr_table *tbl);
+void mlx5dr_dbg_tbl_del(struct mlx5dr_table *tbl);
+void mlx5dr_dbg_rule_add(struct mlx5dr_rule *rule);
+void mlx5dr_dbg_rule_del(struct mlx5dr_rule *rule);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
index 8cbd36c82b3b..b12b47394890 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c
@@ -396,7 +396,7 @@ mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type)
}
dr_domain_init_csum_recalc_fts(dmn);
-
+ mlx5dr_dbg_init_dump(dmn);
return dmn;
uninit_caps:
@@ -437,6 +437,7 @@ int mlx5dr_domain_destroy(struct mlx5dr_domain *dmn)
/* make sure resources are not used by the hardware */
mlx5dr_cmd_sync_steering(dmn->mdev);
+ mlx5dr_dbg_uninit_dump(dmn);
dr_domain_uninit_csum_recalc_fts(dmn);
dr_domain_uninit_resources(dmn);
dr_domain_caps_uninit(dmn);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c
index af2cbbb6ef95..88288c02d6ea 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c
@@ -969,6 +969,7 @@ mlx5dr_matcher_create(struct mlx5dr_table *tbl,
matcher->match_criteria = match_criteria_enable;
refcount_set(&matcher->refcount, 1);
INIT_LIST_HEAD(&matcher->list_node);
+ INIT_LIST_HEAD(&matcher->dbg_rule_list);
mlx5dr_domain_lock(tbl->dmn);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
index 6a390e981b09..3b4cd3160c27 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
@@ -5,11 +5,6 @@
#define DR_RULE_MAX_STE_CHAIN (DR_RULE_MAX_STES + DR_ACTION_MAX_STES)
-struct mlx5dr_rule_action_member {
- struct mlx5dr_action *action;
- struct list_head list;
-};
-
static int dr_rule_append_to_miss_list(struct mlx5dr_ste_ctx *ste_ctx,
struct mlx5dr_ste *new_last_ste,
struct list_head *miss_list,
@@ -1003,6 +998,8 @@ static int dr_rule_destroy_rule(struct mlx5dr_rule *rule)
{
struct mlx5dr_domain *dmn = rule->matcher->tbl->dmn;
+ mlx5dr_dbg_rule_del(rule);
+
switch (dmn->type) {
case MLX5DR_DOMAIN_TYPE_NIC_RX:
dr_rule_destroy_rule_nic(rule, &rule->rx);
@@ -1257,6 +1254,8 @@ dr_rule_create_rule(struct mlx5dr_matcher *matcher,
if (ret)
goto remove_action_members;
+ INIT_LIST_HEAD(&rule->dbg_node);
+ mlx5dr_dbg_rule_add(rule);
return rule;
remove_action_members:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c
index 4c40178e7d1e..241ee49a24ba 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_table.c
@@ -266,6 +266,8 @@ struct mlx5dr_table *mlx5dr_table_create(struct mlx5dr_domain *dmn, u32 level, u
if (ret)
goto uninit_tbl;
+ INIT_LIST_HEAD(&tbl->dbg_node);
+ mlx5dr_dbg_tbl_add(tbl);
return tbl;
uninit_tbl:
@@ -284,6 +286,7 @@ int mlx5dr_table_destroy(struct mlx5dr_table *tbl)
if (refcount_read(&tbl->refcount) > 1)
return -EBUSY;
+ mlx5dr_dbg_tbl_del(tbl);
ret = dr_table_destroy_sw_owned_tbl(tbl);
if (ret)
return ret;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
index 9f21a72e23b1..584d2b0eb016 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
@@ -11,6 +11,7 @@
#include "lib/mlx5.h"
#include "mlx5_ifc_dr.h"
#include "mlx5dr.h"
+#include "dr_dbg.h"
#define DR_RULE_MAX_STES 18
#define DR_ACTION_MAX_STES 5
@@ -878,6 +879,8 @@ struct mlx5dr_domain {
struct mlx5dr_domain_info info;
struct xarray csum_fts_xa;
struct mlx5dr_ste_ctx *ste_ctx;
+ struct list_head dbg_tbl_list;
+ struct mlx5dr_dbg_dump_info dump_info;
};
struct mlx5dr_table_rx_tx {
@@ -897,6 +900,7 @@ struct mlx5dr_table {
struct list_head matcher_list;
struct mlx5dr_action *miss_action;
refcount_t refcount;
+ struct list_head dbg_node;
};
struct mlx5dr_matcher_rx_tx {
@@ -916,11 +920,12 @@ struct mlx5dr_matcher {
struct mlx5dr_table *tbl;
struct mlx5dr_matcher_rx_tx rx;
struct mlx5dr_matcher_rx_tx tx;
- struct list_head list_node;
+ struct list_head list_node; /* Used for both matchers and dbg managing */
u32 prio;
struct mlx5dr_match_param mask;
u8 match_criteria;
refcount_t refcount;
+ struct list_head dbg_rule_list;
};
struct mlx5dr_ste_action_modify_field {
@@ -992,6 +997,11 @@ struct mlx5dr_action_flow_tag {
u32 flow_tag;
};
+struct mlx5dr_rule_action_member {
+ struct mlx5dr_action *action;
+ struct list_head list;
+};
+
struct mlx5dr_action {
enum mlx5dr_action_type action_type;
refcount_t refcount;
@@ -1032,6 +1042,7 @@ struct mlx5dr_rule {
struct mlx5dr_rule_rx_tx rx;
struct mlx5dr_rule_rx_tx tx;
struct list_head rule_actions_list;
+ struct list_head dbg_node;
u32 flow_source;
};
--
2.33.1
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