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/* packet-nvme.h
* data structures for NVMe Dissection
* Copyright 2016
* Code by Parav Pandit
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _PACKET_NVME_H_
#define _PACKET_NVME_H_
#define NVME_CMD_SIZE 64
#define NVME_CQE_SIZE 16
struct nvme_q_ctx {
wmem_tree_t *pending_cmds;
wmem_tree_t *done_cmds;
wmem_tree_t *data_requests;
wmem_tree_t *data_responses;
guint16 qid;
};
struct nvme_cmd_ctx {
guint32 cmd_pkt_num; /* pkt number of the cmd */
guint32 cqe_pkt_num; /* pkt number of the cqe */
guint32 data_req_pkt_num;
guint32 data_resp_pkt_num;
nstime_t cmd_start_time;
nstime_t cmd_end_time;
gboolean fabric; /* indicate whether cmd fabric type or not */
guint8 opcode;
guint32 remote_key;
guint16 resp_type;
};
void
nvme_publish_qid(proto_tree *tree, int field_index, guint16 qid);
void
nvme_publish_cmd_latency(proto_tree *tree, struct nvme_cmd_ctx *cmd_ctx,
int field_index);
void
nvme_publish_cqe_to_cmd_link(proto_tree *cqe_tree, tvbuff_t *cqe_tvb,
int hf_index, struct nvme_cmd_ctx *cmd_ctx);
void
nvme_publish_cmd_to_cqe_link(proto_tree *cmd_tree, tvbuff_t *cqe_tvb,
int hf_index, struct nvme_cmd_ctx *cmd_ctx);
void nvme_update_cmd_end_info(packet_info *pinfo, struct nvme_cmd_ctx *cmd_ctx);
void
nvme_add_cmd_to_pending_list(packet_info *pinfo, struct nvme_q_ctx *q_ctx,
struct nvme_cmd_ctx *cmd_ctx,
void *ctx, guint16 cmd_id);
void* nvme_lookup_cmd_in_pending_list(struct nvme_q_ctx *q_ctx, guint16 cmd_id);
void nvme_add_data_request(packet_info *pinfo, struct nvme_q_ctx *q_ctx,
struct nvme_cmd_ctx *cmd_ctx, void *ctx);
void* nvme_lookup_data_request(struct nvme_q_ctx *q_ctx, guint32 key);
void
nvme_add_data_response(struct nvme_q_ctx *q_ctx,
struct nvme_cmd_ctx *cmd_ctx, guint32 rkey);
void*
nvme_lookup_data_response(packet_info *pinfo, struct nvme_q_ctx *q_ctx,
guint32 rkey);
void
nvme_add_cmd_cqe_to_done_list(struct nvme_q_ctx *q_ctx,
struct nvme_cmd_ctx *cmd_ctx, guint16 cmd_id);
void*
nvme_lookup_cmd_in_done_list(packet_info *pinfo, struct nvme_q_ctx *q_ctx,
guint16 cmd_id);
void dissect_nvme_cmd_sgl(tvbuff_t *cmd_tvb, proto_tree *cmd_tree,
int field_index, struct nvme_cmd_ctx *cmd_ctx);
void
dissect_nvme_cmd(tvbuff_t *nvme_tvb, packet_info *pinfo, proto_tree *root_tree,
struct nvme_q_ctx *q_ctx, struct nvme_cmd_ctx *cmd_ctx);
void
dissect_nvme_data_response(tvbuff_t *nvme_tvb, packet_info *pinfo, proto_tree *root_tree,
struct nvme_q_ctx *q_ctx, struct nvme_cmd_ctx *cmd_ctx, guint len);
void
dissect_nvme_cqe(tvbuff_t *nvme_tvb, packet_info *pinfo, proto_tree *root_tree,
struct nvme_cmd_ctx *cmd_ctx);
#endif
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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