From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4463EC433FE for ; Fri, 31 Dec 2021 08:21:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242804AbhLaIVA (ORCPT ); Fri, 31 Dec 2021 03:21:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242788AbhLaIUu (ORCPT ); Fri, 31 Dec 2021 03:20:50 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC75EC06173F for ; Fri, 31 Dec 2021 00:20:49 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 14A5DB81D5D for ; Fri, 31 Dec 2021 08:20:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F9AAC36AE9; Fri, 31 Dec 2021 08:20:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1640938846; bh=giAHa0HmLNcsAHBKcXXkA+Rpo2PvSE3sDCxmNuxPnjU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ElxN+pwKkNIfKRKPzgBKbZL0Blcrx0P190zMXlhN5rachALsE5iIx4iCvx9kbwBXl SlZwqmE79pc07apHvDf3JSSXrdJGw3YHVW/p2RRQ6yNmGpYpCPBbz0z0Y4B9+e5p0F Ut5so7p0aXXQZ6JOwhSPZshNC8Tsi1cLG2iMvFYj8xd3L9f4bTRi3nfrYWonRqgsFw TRQvtTnG165ZZccfY2dMej/eOFPNvWavs+G02S1o3XCoB78lgZdV62B08IYRQSCb5S kseJG/+rRLoRqaLY4T1O8xnfepJVNZlsU93Ei8/VKOwapqY65MzOVUM55A2OWJ+nSB kxEe54pyZnmXg== From: Saeed Mahameed To: "David S. Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Muhammad Sammar , Yevgeny Kliteynik , Saeed Mahameed Subject: [net-next v2 07/16] net/mlx5: DR, Add support for dumping steering info Date: Fri, 31 Dec 2021 00:20:29 -0800 Message-Id: <20211231082038.106490-8-saeed@kernel.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211231082038.106490-1-saeed@kernel.org> References: <20211231082038.106490-1-saeed@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Muhammad Sammar 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: ,, ,..., This data can be read at the following path: /sys/kernel/debug/mlx5//steering/fdb/ Example: # cat /sys/kernel/debug/mlx5/0000:82:00.0/steering/fdb/dmn_000018644 3100,0x55caa4621c50,0xee802,4,65533 3101,0x55caa4621c50,0xe0100008 Changes in V2: - Reduce temp hex buffer size and avoid unnecessary memset - Use bin2hex() instead of DIY loop - Don't check debugfs functions return values Signed-off-by: Muhammad Sammar Signed-off-by: Yevgeny Kliteynik Signed-off-by: Saeed Mahameed --- .../net/ethernet/mellanox/mlx5/core/Makefile | 3 +- .../mellanox/mlx5/core/steering/dr_dbg.c | 649 ++++++++++++++++++ .../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, 688 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..2784cd59fefe --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_dbg.c @@ -0,0 +1,649 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. + +#include +#include +#include +#include +#include "dr_types.h" + +#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; +} + +#define DR_HEX_SIZE 256 + +static void +dr_dump_hex_print(char hex[DR_HEX_SIZE], char *src, u32 size) +{ + if (WARN_ON_ONCE(DR_HEX_SIZE < 2 * size + 1)) + size = DR_HEX_SIZE / 2 - 1; /* truncate */ + + bin2hex(hex, src, size); + hex[2 * size] = 0; /* NULL-terminate */ +} + +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[DR_HEX_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, (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[DR_HEX_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, (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, (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, (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, (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, (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; + } + + dmn->dump_info.steering_debugfs = + debugfs_create_dir("steering", dev->priv.dbg_root); + dmn->dump_info.fdb_debugfs = + debugfs_create_dir("fdb", dmn->dump_info.steering_debugfs); + + 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 c54cc45f63dc..97a41b2b36e5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c @@ -395,7 +395,7 @@ 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: @@ -436,6 +436,7 @@ 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