2016-12-26 05:47:57 +00:00
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/* packet-nvme-rdma.c
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* Routines for NVM Express over Fabrics(RDMA) dissection
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* Copyright 2016
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* Code by Parav Pandit
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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2018-02-12 11:23:27 +00:00
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* SPDX-License-Identifier: GPL-2.0-or-later
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2016-12-26 05:47:57 +00:00
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*/
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/*
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NVM Express is high speed interface for accessing solid state drives.
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NVM Express specifications are maintained by NVM Express industry
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association at http://www.nvmexpress.org.
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This file adds support to dissect NVM Express over fabrics packets
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for RDMA. This adds very basic support for dissecting commands
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completions.
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Current dissection supports dissection of
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(a) NVMe cmd and cqe
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(b) NVMe Fabric command and cqe
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As part of it, it also calculates cmd completion latencies.
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This protocol is similar to iSCSI and SCSI dissection where iSCSI is
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transport protocol for carying SCSI commands and responses. Similarly
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NVMe Fabrics - RDMA transport protocol carries NVMe commands.
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+----------+
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| NVMe |
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+------+---+
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+-----------+---------+
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| NVMe Fabrics |
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+----+-----------+----+
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+----+---+ +---+----+
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| RDMA | | FC |
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+--------+ +--------+
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References:
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NVMe Express fabrics specification is located at
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http://www.nvmexpress.org/wp-content/uploads/NVMe_over_Fabrics_1_0_Gold_20160605.pdf
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NVMe Express specification is located at
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http://www.nvmexpress.org/wp-content/uploads/NVM-Express-1_2a.pdf
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NVM Express RDMA TCP port assigned by IANA that maps to RDMA IP service
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TCP port can be found at
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http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=NVM+Express
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <errno.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/conversation.h>
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#include <epan/addr_resolv.h>
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#include "packet-infiniband.h"
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#include "packet-nvme.h"
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#define SID_ULP_MASK 0x00000000FF000000
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#define SID_PROTO_MASK 0x0000000000FF0000
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#define SID_PORT_MASK 0x000000000000FFFF
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#define SID_ULP 0x01
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#define SID_PROTO_TCP 0x06
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2017-03-24 15:24:43 +00:00
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#define NVME_RDMA_TCP_PORT_RANGE "4420" /* IANA registered */
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2016-12-26 05:47:57 +00:00
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#define SID_MASK (SID_ULP_MASK | SID_PROTO_MASK)
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#define SID_ULP_TCP ((SID_ULP << 3 * 8) | (SID_PROTO_TCP << 2 * 8))
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#define NVME_FABRICS_RDMA "NVMe Fabrics RDMA"
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#define NVME_FABRIC_CMD_SIZE NVME_CMD_SIZE
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#define NVME_FABRIC_CQE_SIZE NVME_CQE_SIZE
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#define NVME_FABRIC_OPC 0x7F
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#define NVME_FCTYPE_CONNECT 0x1
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#define NVME_FCTYPE_AUTH_RECV 0x6
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#define NVME_FCTYPE_PROP_GET 0x4
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#define NVME_FCTYPE_PROP_SET 0x0
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static const value_string fctype_tbl[] = {
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{ NVME_FCTYPE_CONNECT, "Connect"},
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{ NVME_FCTYPE_PROP_GET, "Property Get"},
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{ NVME_FCTYPE_PROP_SET, "Property Set"},
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{ NVME_FCTYPE_AUTH_RECV, "Authentication Recv"},
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{ 0, NULL}
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};
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static const value_string prop_offset_tbl[] = {
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{ 0x0, "Controller Capabilities"},
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{ 0x8, "Version"},
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{ 0xc, "Reserved"},
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{ 0x10, "Reserved"},
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{ 0x14, "Controller Configuration"},
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{ 0x18, "Reserved"},
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{ 0x1c, "Controller Status"},
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{ 0x20, "NVM Subsystem Reset"},
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{ 0x24, "Reserved"},
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{ 0x28, "Reserved"},
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{ 0x30, "Reserved"},
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{ 0x38, "Reserved"},
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{ 0x3c, "Reserved"},
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{ 0x40, "Reserved"},
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{ 0, NULL}
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};
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static const value_string attr_size_tbl[] = {
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{ 0, "4 bytes"},
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{ 1, "8 bytes"},
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{ 0, NULL}
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};
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struct nvme_rdma_q_ctx {
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struct nvme_q_ctx n_q_ctx;
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};
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struct nvme_rdma_cmd_ctx {
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struct nvme_cmd_ctx n_cmd_ctx;
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guint8 fctype; /* fabric cmd type */
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};
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void proto_reg_handoff_nvme_rdma(void);
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void proto_register_nvme_rdma(void);
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static int proto_nvme_rdma = -1;
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static dissector_handle_t ib_handler;
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static int proto_ib = -1;
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/* NVMe Fabrics RDMA CM Private data */
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static int hf_nvme_rdma_cm_req_recfmt = -1;
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static int hf_nvme_rdma_cm_req_qid = -1;
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static int hf_nvme_rdma_cm_req_hrqsize = -1;
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static int hf_nvme_rdma_cm_req_hsqsize = -1;
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static int hf_nvme_rdma_cm_req_reserved = -1;
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static int hf_nvme_rdma_cm_rsp_recfmt = -1;
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static int hf_nvme_rdma_cm_rsp_crqsize = -1;
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static int hf_nvme_rdma_cm_rsp_reserved = -1;
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static int hf_nvme_rdma_cm_rej_recfmt = -1;
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static int hf_nvme_rdma_cm_rej_status = -1;
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static int hf_nvme_rdma_cm_rej_reserved = -1;
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/* NVMe Fabric Cmd */
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static int hf_nvme_rdma_cmd = -1;
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static int hf_nvme_rdma_from_host_unknown_data = -1;
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static int hf_nvme_rdma_cmd_opc = -1;
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static int hf_nvme_rdma_cmd_rsvd = -1;
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static int hf_nvme_rdma_cmd_cid = -1;
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static int hf_nvme_rdma_cmd_fctype = -1;
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static int hf_nvme_rdma_cmd_connect_rsvd1 = -1;
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static int hf_nvme_rdma_cmd_connect_sgl1 = -1;
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static int hf_nvme_rdma_cmd_connect_recfmt = -1;
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static int hf_nvme_rdma_cmd_connect_qid = -1;
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static int hf_nvme_rdma_cmd_connect_sqsize = -1;
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static int hf_nvme_rdma_cmd_connect_cattr = -1;
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static int hf_nvme_rdma_cmd_connect_rsvd2 = -1;
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static int hf_nvme_rdma_cmd_connect_kato = -1;
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static int hf_nvme_rdma_cmd_connect_rsvd3 = -1;
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2017-01-14 05:11:28 +00:00
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static int hf_nvme_rdma_cmd_data = -1;
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static int hf_nvme_rdma_cmd_connect_data_hostid = -1;
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static int hf_nvme_rdma_cmd_connect_data_cntlid = -1;
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static int hf_nvme_rdma_cmd_connect_data_rsvd = -1;
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static int hf_nvme_rdma_cmd_connect_data_subnqn = -1;
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static int hf_nvme_rdma_cmd_connect_data_hostnqn = -1;
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static int hf_nvme_rdma_cmd_connect_data_rsvd1 = -1;
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2016-12-26 05:47:57 +00:00
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static int hf_nvme_rdma_cmd_prop_attr_rsvd = -1;
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static int hf_nvme_rdma_cmd_prop_attr_rsvd1 = -1;
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static int hf_nvme_rdma_cmd_prop_attr_size = -1;
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static int hf_nvme_rdma_cmd_prop_attr_rsvd2 = -1;
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static int hf_nvme_rdma_cmd_prop_attr_offset = -1;
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static int hf_nvme_rdma_cmd_prop_attr_get_rsvd3 = -1;
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static int hf_nvme_rdma_cmd_prop_attr_set_4B_value = -1;
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static int hf_nvme_rdma_cmd_prop_attr_set_4B_value_rsvd = -1;
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static int hf_nvme_rdma_cmd_prop_attr_set_8B_value = -1;
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static int hf_nvme_rdma_cmd_prop_attr_set_rsvd3 = -1;
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static int hf_nvme_rdma_cmd_generic_rsvd1 = -1;
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static int hf_nvme_rdma_cmd_generic_field = -1;
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/* NVMe Fabric CQE */
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static int hf_nvme_rdma_cqe = -1;
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static int hf_nvme_rdma_cqe_sts = -1;
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static int hf_nvme_rdma_cqe_sqhd = -1;
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static int hf_nvme_rdma_cqe_rsvd = -1;
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static int hf_nvme_rdma_cqe_cid = -1;
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static int hf_nvme_rdma_cqe_status = -1;
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static int hf_nvme_rdma_cqe_status_rsvd = -1;
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static int hf_nvme_rdma_cqe_connect_cntlid = -1;
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static int hf_nvme_rdma_cqe_connect_authreq = -1;
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static int hf_nvme_rdma_cqe_connect_rsvd = -1;
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static int hf_nvme_rdma_cqe_prop_set_rsvd = -1;
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static int hf_nvme_rdma_to_host_unknown_data = -1;
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/* tracking Cmd and its respective CQE */
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static int hf_nvme_rdma_cmd_pkt = -1;
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static int hf_nvme_rdma_cqe_pkt = -1;
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static int hf_nvme_rdma_cmd_latency = -1;
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static int hf_nvme_rdma_cmd_qid = -1;
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/* Initialize the subtree pointers */
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static gint ett_cm = -1;
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static gint ett_data = -1;
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static range_t *gPORT_RANGE;
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static conversation_infiniband_data *get_conversion_data(conversation_t *conv)
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{
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conversation_infiniband_data *conv_data;
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conv_data = (conversation_infiniband_data *)conversation_get_proto_data(conv, proto_ib);
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if (!conv_data)
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return NULL;
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if ((conv_data->service_id & SID_MASK) != SID_ULP_TCP)
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return NULL; /* the service id doesn't match that of TCP ULP - nothing for us to do here */
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if (!(value_is_in_range(gPORT_RANGE, (guint32)(conv_data->service_id & SID_PORT_MASK))))
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return NULL; /* the port doesn't match that of NVM Express Fabrics - nothing for us to do here */
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return conv_data;
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}
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static conversation_t*
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find_ib_conversation(packet_info *pinfo, conversation_infiniband_data **uni_conv_data)
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{
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conversation_t *conv;
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conversation_infiniband_data *conv_data;
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conv = find_conversation(pinfo->num, &pinfo->dst, &pinfo->dst,
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2017-10-29 14:12:59 +00:00
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ENDPOINT_IBQP, pinfo->destport, pinfo->destport,
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2016-12-26 05:47:57 +00:00
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NO_ADDR_B|NO_PORT_B);
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if (!conv)
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return NULL; /* nothing to do with no conversation context */
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conv_data = get_conversion_data(conv);
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*uni_conv_data = conv_data;
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if (!conv_data)
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return NULL;
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/* now that we found unidirectional conversation, find bidirectional
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* conversation, so that we can relate to nvme q.
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*/
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return find_conversation(pinfo->num, &pinfo->src, &pinfo->dst,
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2017-10-29 14:12:59 +00:00
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ENDPOINT_IBQP, pinfo->srcport, pinfo->destport, 0);
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2016-12-26 05:47:57 +00:00
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}
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static guint16 find_nvme_qid(packet_info *pinfo)
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{
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conversation_t *conv;
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conversation_infiniband_data *conv_data;
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guint16 qid;
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conv = find_conversation(pinfo->num, &pinfo->dst, &pinfo->dst,
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2017-10-29 14:12:59 +00:00
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ENDPOINT_IBQP, pinfo->destport, pinfo->destport,
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2016-12-26 05:47:57 +00:00
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NO_ADDR_B|NO_PORT_B);
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if (!conv)
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return 0; /* nothing to do with no conversation context */
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conv_data = get_conversion_data(conv);
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if (!conv_data)
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return 0;
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if (conv_data->client_to_server == FALSE) {
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memcpy(&qid, &conv_data->mad_private_data[178], 2);
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return qid;
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}
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conv = find_conversation(pinfo->num, &pinfo->src, &pinfo->src,
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2017-10-29 14:12:59 +00:00
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ENDPOINT_IBQP, conv_data->src_qp, conv_data->src_qp,
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2016-12-26 05:47:57 +00:00
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NO_ADDR_B|NO_PORT_B);
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2017-12-28 18:48:17 +00:00
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if (!conv)
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return 0;
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2016-12-26 05:47:57 +00:00
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conv_data = get_conversion_data(conv);
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if (!conv_data)
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return 0;
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memcpy(&qid, &conv_data->mad_private_data[178], 2);
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return qid;
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}
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static struct nvme_rdma_q_ctx*
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find_add_q_ctx(packet_info *pinfo, conversation_t *conv)
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{
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struct nvme_rdma_q_ctx *q_ctx;
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guint16 qid;
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q_ctx = (struct nvme_rdma_q_ctx*)conversation_get_proto_data(conv, proto_nvme_rdma);
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if (!q_ctx) {
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qid = find_nvme_qid(pinfo);
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q_ctx = wmem_new(wmem_file_scope(), struct nvme_rdma_q_ctx);
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q_ctx->n_q_ctx.pending_cmds = wmem_tree_new(wmem_file_scope());
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q_ctx->n_q_ctx.done_cmds = wmem_tree_new(wmem_file_scope());
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2017-06-04 09:45:04 +00:00
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q_ctx->n_q_ctx.data_requests = wmem_tree_new(wmem_file_scope());
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q_ctx->n_q_ctx.data_responses = wmem_tree_new(wmem_file_scope());
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2016-12-26 05:47:57 +00:00
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q_ctx->n_q_ctx.qid = qid;
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conversation_add_proto_data(conv, proto_nvme_rdma, q_ctx);
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}
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return q_ctx;
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}
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static conversation_infiniband_data*
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|
|
find_ib_cm_conversation(packet_info *pinfo)
|
|
|
|
{
|
|
|
|
conversation_t *conv;
|
|
|
|
|
|
|
|
conv = find_conversation(pinfo->num, &pinfo->src, &pinfo->dst,
|
2017-10-29 14:12:59 +00:00
|
|
|
ENDPOINT_IBQP, pinfo->srcport, pinfo->destport, 0);
|
2016-12-26 05:47:57 +00:00
|
|
|
if (!conv)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return get_conversion_data(conv);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_rdma_cm_req_packet(tvbuff_t *tvb, proto_tree *tree)
|
|
|
|
{
|
|
|
|
proto_tree *cm_tree;
|
|
|
|
proto_item *ti, *qid_item;
|
|
|
|
/* private data is at offset of 36 bytes */
|
|
|
|
int offset = 36;
|
|
|
|
guint16 qid;
|
|
|
|
|
|
|
|
/* create display subtree for private data */
|
|
|
|
ti = proto_tree_add_item(tree, proto_nvme_rdma, tvb, offset, 32, ENC_NA);
|
|
|
|
cm_tree = proto_item_add_subtree(ti, ett_cm);
|
|
|
|
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_req_recfmt, tvb,
|
|
|
|
offset + 0, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
|
|
|
|
qid_item = proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_req_qid, tvb,
|
|
|
|
offset + 2, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
qid = tvb_get_guint16(tvb, offset + 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_item_append_text(qid_item, " %s", qid ? "IOQ" : "AQ");
|
|
|
|
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_req_hrqsize, tvb,
|
|
|
|
offset + 4, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_req_hsqsize, tvb,
|
|
|
|
offset + 6, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_req_reserved, tvb,
|
|
|
|
offset + 8, 24, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_rdma_cm_rsp_packet(tvbuff_t *tvb, proto_tree *tree)
|
|
|
|
{
|
|
|
|
proto_tree *cm_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
|
|
|
|
/* create display subtree for the private datat that start at offset 0 */
|
|
|
|
ti = proto_tree_add_item(tree, proto_nvme_rdma, tvb, 0, 32, ENC_NA);
|
|
|
|
cm_tree = proto_item_add_subtree(ti, ett_cm);
|
|
|
|
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_rsp_recfmt, tvb,
|
|
|
|
0, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_rsp_crqsize, tvb,
|
|
|
|
2, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_rsp_reserved, tvb,
|
|
|
|
4, 28, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_rdma_cm_rej_packet(tvbuff_t *tvb, proto_tree *tree)
|
|
|
|
{
|
|
|
|
proto_tree *cm_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
|
|
|
|
/* create display subtree for the private datat that start at offset 0 */
|
|
|
|
ti = proto_tree_add_item(tree, proto_nvme_rdma, tvb, 0, 32, ENC_NA);
|
|
|
|
cm_tree = proto_item_add_subtree(ti, ett_cm);
|
|
|
|
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_rej_recfmt, tvb,
|
|
|
|
0, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_rej_status, tvb,
|
|
|
|
2, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cm_tree, hf_nvme_rdma_cm_rej_reserved, tvb,
|
|
|
|
4, 28, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dissect_rdma_cm_packet(tvbuff_t *tvb, proto_tree *tree,
|
|
|
|
guint16 cm_attribute_id)
|
|
|
|
{
|
|
|
|
switch (cm_attribute_id) {
|
|
|
|
case ATTR_CM_REQ:
|
|
|
|
dissect_rdma_cm_req_packet(tvb, tree);
|
|
|
|
break;
|
|
|
|
case ATTR_CM_REP:
|
|
|
|
dissect_rdma_cm_rsp_packet(tvb, tree);
|
|
|
|
break;
|
|
|
|
case ATTR_CM_REJ:
|
|
|
|
dissect_rdma_cm_rej_packet(tvb, tree);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_nvme_ib_cm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
|
|
|
|
void *data)
|
|
|
|
{
|
|
|
|
conversation_infiniband_data *conv_data = NULL;
|
|
|
|
struct infinibandinfo *info = (struct infinibandinfo *)data;
|
|
|
|
|
|
|
|
conv_data = find_ib_cm_conversation(pinfo);
|
|
|
|
if (!conv_data)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, NVME_FABRICS_RDMA);
|
|
|
|
return dissect_rdma_cm_packet(tvb, tree, info->cm_attribute_id);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_nvme_fabric_connect_cmd(proto_tree *cmd_tree, tvbuff_t *cmd_tvb)
|
|
|
|
{
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_rsvd1, cmd_tvb,
|
|
|
|
5, 19, ENC_NA);
|
2017-06-04 09:45:04 +00:00
|
|
|
dissect_nvme_cmd_sgl(cmd_tvb, cmd_tree, hf_nvme_rdma_cmd_connect_sgl1, NULL);
|
2016-12-26 05:47:57 +00:00
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_recfmt, cmd_tvb,
|
|
|
|
40, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_qid, cmd_tvb,
|
|
|
|
42, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_sqsize, cmd_tvb,
|
|
|
|
44, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_cattr, cmd_tvb,
|
|
|
|
46, 1, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_rsvd2, cmd_tvb,
|
|
|
|
47, 1, ENC_NA);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_kato, cmd_tvb,
|
|
|
|
48, 4, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_connect_rsvd3, cmd_tvb,
|
|
|
|
52, 12, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static guint8 dissect_nvme_fabric_prop_cmd_common(proto_tree *cmd_tree, tvbuff_t *cmd_tvb)
|
|
|
|
{
|
|
|
|
proto_item *attr_item, *offset_item;
|
|
|
|
guint32 offset;
|
|
|
|
guint8 attr;
|
|
|
|
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_rsvd, cmd_tvb,
|
|
|
|
5, 35, ENC_NA);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_rsvd1, cmd_tvb,
|
|
|
|
40, 1, ENC_LITTLE_ENDIAN);
|
|
|
|
attr_item = proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_size, cmd_tvb,
|
|
|
|
40, 1, ENC_LITTLE_ENDIAN);
|
|
|
|
attr = tvb_get_guint8(cmd_tvb, 40) & 0x7;
|
|
|
|
proto_item_append_text(attr_item, " %s",
|
|
|
|
val_to_str(attr, attr_size_tbl, "Reserved"));
|
|
|
|
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_rsvd2, cmd_tvb,
|
|
|
|
41, 3, ENC_NA);
|
|
|
|
|
|
|
|
offset_item = proto_tree_add_item_ret_uint(cmd_tree, hf_nvme_rdma_cmd_prop_attr_offset,
|
|
|
|
cmd_tvb, 44, 4, ENC_LITTLE_ENDIAN, &offset);
|
|
|
|
proto_item_append_text(offset_item, " %s",
|
|
|
|
val_to_str(offset, prop_offset_tbl, "Unknown Property"));
|
|
|
|
return attr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_nvme_fabric_prop_get_cmd(proto_tree *cmd_tree, tvbuff_t *cmd_tvb)
|
|
|
|
{
|
|
|
|
dissect_nvme_fabric_prop_cmd_common(cmd_tree, cmd_tvb);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_get_rsvd3, cmd_tvb,
|
|
|
|
48, 16, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_nvme_fabric_prop_set_cmd(proto_tree *cmd_tree, tvbuff_t *cmd_tvb)
|
|
|
|
{
|
|
|
|
guint8 attr;
|
|
|
|
|
|
|
|
attr = dissect_nvme_fabric_prop_cmd_common(cmd_tree, cmd_tvb);
|
|
|
|
if (attr == 0) {
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_set_4B_value, cmd_tvb,
|
|
|
|
48, 4, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_set_4B_value_rsvd, cmd_tvb,
|
|
|
|
52, 4, ENC_LITTLE_ENDIAN);
|
|
|
|
} else {
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_set_8B_value, cmd_tvb,
|
|
|
|
48, 8, ENC_LITTLE_ENDIAN);
|
|
|
|
}
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_prop_attr_set_rsvd3, cmd_tvb,
|
|
|
|
56, 8, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dissect_nvme_fabric_generic_cmd(proto_tree *cmd_tree, tvbuff_t *cmd_tvb)
|
|
|
|
{
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_generic_rsvd1, cmd_tvb,
|
|
|
|
5, 35, ENC_NA);
|
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_generic_field, cmd_tvb,
|
|
|
|
40, 24, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct nvme_rdma_cmd_ctx*
|
|
|
|
bind_cmd_to_qctx(packet_info *pinfo, struct nvme_q_ctx *q_ctx,
|
|
|
|
guint16 cmd_id)
|
|
|
|
{
|
|
|
|
struct nvme_rdma_cmd_ctx *ctx;
|
|
|
|
|
|
|
|
if (!PINFO_FD_VISITED(pinfo)) {
|
|
|
|
ctx = wmem_new0(wmem_file_scope(), struct nvme_rdma_cmd_ctx);
|
|
|
|
|
|
|
|
nvme_add_cmd_to_pending_list(pinfo, q_ctx,
|
|
|
|
&ctx->n_cmd_ctx, (void*)ctx, cmd_id);
|
|
|
|
} else {
|
|
|
|
/* Already visited this frame */
|
|
|
|
ctx = (struct nvme_rdma_cmd_ctx*)
|
|
|
|
nvme_lookup_cmd_in_done_list(pinfo, q_ctx, cmd_id);
|
|
|
|
/* if we have already visited frame but haven't found completion yet,
|
|
|
|
* we won't find cmd in done q, so allocate a dummy ctx for doing
|
|
|
|
* rest of the processing.
|
|
|
|
*/
|
|
|
|
if (!ctx)
|
|
|
|
ctx = wmem_new0(wmem_file_scope(), struct nvme_rdma_cmd_ctx);
|
|
|
|
}
|
|
|
|
return ctx;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_fabric_cmd(tvbuff_t *nvme_tvb, proto_tree *nvme_tree,
|
|
|
|
struct nvme_rdma_cmd_ctx *cmd_ctx)
|
|
|
|
{
|
|
|
|
proto_tree *cmd_tree;
|
|
|
|
proto_item *ti, *opc_item, *fctype_item;
|
|
|
|
guint8 fctype;
|
|
|
|
|
|
|
|
fctype = tvb_get_guint8(nvme_tvb, 4);
|
|
|
|
cmd_ctx->fctype = fctype;
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
ti = proto_tree_add_item(nvme_tree, hf_nvme_rdma_cmd, nvme_tvb, 0,
|
2016-12-26 05:47:57 +00:00
|
|
|
NVME_FABRIC_CMD_SIZE, ENC_NA);
|
|
|
|
cmd_tree = proto_item_add_subtree(ti, ett_data);
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
opc_item = proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_opc, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
0, 1, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_item_append_text(opc_item, "%s", " Fabric Cmd");
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
nvme_publish_cmd_to_cqe_link(cmd_tree, nvme_tvb, hf_nvme_rdma_cqe_pkt,
|
2016-12-26 05:47:57 +00:00
|
|
|
&cmd_ctx->n_cmd_ctx);
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_rsvd, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
1, 1, ENC_NA);
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_cid, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
2, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
fctype_item = proto_tree_add_item(cmd_tree, hf_nvme_rdma_cmd_fctype,
|
|
|
|
nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
4, 1, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_item_append_text(fctype_item, " %s",
|
|
|
|
val_to_str(fctype, fctype_tbl, "Unknown FcType"));
|
|
|
|
|
|
|
|
switch(fctype) {
|
|
|
|
case NVME_FCTYPE_CONNECT:
|
2017-01-14 05:11:28 +00:00
|
|
|
dissect_nvme_fabric_connect_cmd(cmd_tree, nvme_tvb);
|
2016-12-26 05:47:57 +00:00
|
|
|
break;
|
|
|
|
case NVME_FCTYPE_PROP_GET:
|
2017-01-14 05:11:28 +00:00
|
|
|
dissect_nvme_fabric_prop_get_cmd(cmd_tree, nvme_tvb);
|
2016-12-26 05:47:57 +00:00
|
|
|
break;
|
|
|
|
case NVME_FCTYPE_PROP_SET:
|
2017-01-14 05:11:28 +00:00
|
|
|
dissect_nvme_fabric_prop_set_cmd(cmd_tree, nvme_tvb);
|
2016-12-26 05:47:57 +00:00
|
|
|
break;
|
|
|
|
case NVME_FCTYPE_AUTH_RECV:
|
|
|
|
default:
|
2017-01-14 05:11:28 +00:00
|
|
|
dissect_nvme_fabric_generic_cmd(cmd_tree, nvme_tvb);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_fabric_connect_cmd_data(tvbuff_t *data_tvb, proto_tree *data_tree,
|
|
|
|
guint offset)
|
|
|
|
{
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_cmd_connect_data_hostid, data_tvb,
|
|
|
|
offset, 16, ENC_NA);
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_cmd_connect_data_cntlid, data_tvb,
|
|
|
|
offset + 16, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_cmd_connect_data_rsvd, data_tvb,
|
|
|
|
offset + 18, 238, ENC_NA);
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_cmd_connect_data_subnqn, data_tvb,
|
|
|
|
offset + 256, 256, ENC_ASCII | ENC_NA);
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_cmd_connect_data_hostnqn, data_tvb,
|
|
|
|
offset + 512, 256, ENC_ASCII | ENC_NA);
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_cmd_connect_data_rsvd1, data_tvb,
|
|
|
|
offset + 768, 256, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_fabric_data(tvbuff_t *nvme_tvb, proto_tree *nvme_tree,
|
|
|
|
guint len, guint8 fctype)
|
|
|
|
{
|
|
|
|
proto_tree *data_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
|
|
|
|
ti = proto_tree_add_item(nvme_tree, hf_nvme_rdma_cmd_data, nvme_tvb, 0,
|
|
|
|
len, ENC_NA);
|
|
|
|
data_tree = proto_item_add_subtree(ti, ett_data);
|
|
|
|
|
|
|
|
switch (fctype) {
|
|
|
|
case NVME_FCTYPE_CONNECT:
|
|
|
|
dissect_nvme_fabric_connect_cmd_data(nvme_tvb, data_tree,
|
|
|
|
NVME_FABRIC_CMD_SIZE);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
proto_tree_add_item(data_tree, hf_nvme_rdma_from_host_unknown_data,
|
|
|
|
nvme_tvb, 0, len, ENC_NA);
|
2016-12-26 05:47:57 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_rdma_cmd(tvbuff_t *nvme_tvb, packet_info *pinfo, proto_tree *root_tree,
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree *nvme_tree, struct nvme_rdma_q_ctx *q_ctx,
|
|
|
|
guint len)
|
2016-12-26 05:47:57 +00:00
|
|
|
{
|
|
|
|
struct nvme_rdma_cmd_ctx *cmd_ctx;
|
|
|
|
guint16 cmd_id;
|
|
|
|
guint8 opcode;
|
|
|
|
|
|
|
|
opcode = tvb_get_guint8(nvme_tvb, 0);
|
|
|
|
cmd_id = tvb_get_guint16(nvme_tvb, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
cmd_ctx = bind_cmd_to_qctx(pinfo, &q_ctx->n_q_ctx, cmd_id);
|
|
|
|
if (opcode == NVME_FABRIC_OPC) {
|
|
|
|
cmd_ctx->n_cmd_ctx.fabric = TRUE;
|
|
|
|
dissect_nvme_fabric_cmd(nvme_tvb, nvme_tree, cmd_ctx);
|
2017-01-14 05:11:28 +00:00
|
|
|
len -= NVME_FABRIC_CMD_SIZE;
|
|
|
|
if (len)
|
|
|
|
dissect_nvme_fabric_data(nvme_tvb, nvme_tree, len, cmd_ctx->fctype);
|
2016-12-26 05:47:57 +00:00
|
|
|
} else {
|
|
|
|
cmd_ctx->n_cmd_ctx.fabric = FALSE;
|
|
|
|
dissect_nvme_cmd(nvme_tvb, pinfo, root_tree, &q_ctx->n_q_ctx,
|
|
|
|
&cmd_ctx->n_cmd_ctx);
|
2017-06-04 09:45:04 +00:00
|
|
|
if (cmd_ctx->n_cmd_ctx.remote_key) {
|
|
|
|
nvme_add_data_request(pinfo, &q_ctx->n_q_ctx,
|
|
|
|
&cmd_ctx->n_cmd_ctx, (void*)cmd_ctx);
|
|
|
|
}
|
2016-12-26 05:47:57 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_from_host(tvbuff_t *nvme_tvb, packet_info *pinfo,
|
|
|
|
proto_tree *root_tree, proto_tree *nvme_tree,
|
|
|
|
struct infinibandinfo *info,
|
|
|
|
struct nvme_rdma_q_ctx *q_ctx,
|
|
|
|
guint len)
|
|
|
|
|
|
|
|
{
|
|
|
|
switch (info->opCode) {
|
|
|
|
case RC_SEND_ONLY:
|
2017-01-14 05:11:28 +00:00
|
|
|
if (len >= NVME_FABRIC_CMD_SIZE)
|
|
|
|
dissect_nvme_rdma_cmd(nvme_tvb, pinfo, root_tree, nvme_tree, q_ctx, len);
|
2016-12-26 05:47:57 +00:00
|
|
|
else
|
|
|
|
proto_tree_add_item(nvme_tree, hf_nvme_rdma_from_host_unknown_data, nvme_tvb,
|
|
|
|
0, len, ENC_NA);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
proto_tree_add_item(nvme_tree, hf_nvme_rdma_from_host_unknown_data, nvme_tvb,
|
|
|
|
0, len, ENC_NA);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_rdma_cqe_status_8B(proto_tree *cqe_tree, tvbuff_t *cqe_tvb,
|
|
|
|
struct nvme_rdma_cmd_ctx *cmd_ctx)
|
|
|
|
{
|
|
|
|
switch (cmd_ctx->fctype) {
|
|
|
|
case NVME_FCTYPE_CONNECT:
|
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_connect_cntlid, cqe_tvb,
|
|
|
|
0, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_connect_authreq, cqe_tvb,
|
|
|
|
2, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_connect_rsvd, cqe_tvb,
|
|
|
|
4, 4, ENC_NA);
|
|
|
|
break;
|
|
|
|
case NVME_FCTYPE_PROP_GET:
|
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_sts, cqe_tvb,
|
|
|
|
0, 8, ENC_LITTLE_ENDIAN);
|
|
|
|
break;
|
|
|
|
case NVME_FCTYPE_PROP_SET:
|
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_prop_set_rsvd, cqe_tvb,
|
|
|
|
0, 8, ENC_NA);
|
|
|
|
break;
|
|
|
|
case NVME_FCTYPE_AUTH_RECV:
|
|
|
|
default:
|
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_sts, cqe_tvb,
|
|
|
|
0, 8, ENC_LITTLE_ENDIAN);
|
|
|
|
break;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_fabric_cqe(tvbuff_t *nvme_tvb,
|
|
|
|
proto_tree *nvme_tree,
|
|
|
|
struct nvme_rdma_cmd_ctx *cmd_ctx)
|
|
|
|
{
|
|
|
|
proto_tree *cqe_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
|
|
|
|
ti = proto_tree_add_item(nvme_tree, hf_nvme_rdma_cqe, nvme_tvb,
|
|
|
|
0, NVME_FABRIC_CQE_SIZE, ENC_NA);
|
|
|
|
proto_item_append_text(ti, " (For Cmd: %s)", val_to_str(cmd_ctx->fctype,
|
|
|
|
fctype_tbl, "Unknown Cmd"));
|
|
|
|
|
|
|
|
cqe_tree = proto_item_add_subtree(ti, ett_data);
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
nvme_publish_cqe_to_cmd_link(cqe_tree, nvme_tvb, hf_nvme_rdma_cmd_pkt,
|
|
|
|
&cmd_ctx->n_cmd_ctx);
|
2016-12-26 05:47:57 +00:00
|
|
|
nvme_publish_cmd_latency(cqe_tree, &cmd_ctx->n_cmd_ctx, hf_nvme_rdma_cmd_latency);
|
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
dissect_nvme_rdma_cqe_status_8B(cqe_tree, nvme_tvb, cmd_ctx);
|
2016-12-26 05:47:57 +00:00
|
|
|
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_sqhd, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
8, 2, ENC_NA);
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_rsvd, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
10, 2, ENC_LITTLE_ENDIAN);
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_cid, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
12, 2, ENC_LITTLE_ENDIAN);
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_status, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
14, 2, ENC_LITTLE_ENDIAN);
|
2017-01-14 05:11:28 +00:00
|
|
|
proto_tree_add_item(cqe_tree, hf_nvme_rdma_cqe_status_rsvd, nvme_tvb,
|
2016-12-26 05:47:57 +00:00
|
|
|
14, 2, ENC_LITTLE_ENDIAN);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_rdma_cqe(tvbuff_t *nvme_tvb, packet_info *pinfo,
|
|
|
|
proto_tree *root_tree, proto_tree *nvme_tree,
|
|
|
|
struct nvme_rdma_q_ctx *q_ctx)
|
|
|
|
{
|
|
|
|
struct nvme_rdma_cmd_ctx *cmd_ctx;
|
|
|
|
guint16 cmd_id;
|
|
|
|
|
|
|
|
cmd_id = tvb_get_guint16(nvme_tvb, 12, ENC_LITTLE_ENDIAN);
|
|
|
|
|
|
|
|
if (!PINFO_FD_VISITED(pinfo)) {
|
|
|
|
|
|
|
|
cmd_ctx = (struct nvme_rdma_cmd_ctx*)
|
|
|
|
nvme_lookup_cmd_in_pending_list(&q_ctx->n_q_ctx, cmd_id);
|
|
|
|
if (!cmd_ctx)
|
|
|
|
goto not_found;
|
|
|
|
|
|
|
|
/* we have already seen this cqe, or an identical one */
|
|
|
|
if (cmd_ctx->n_cmd_ctx.cqe_pkt_num)
|
|
|
|
goto not_found;
|
|
|
|
|
|
|
|
cmd_ctx->n_cmd_ctx.cqe_pkt_num = pinfo->num;
|
|
|
|
nvme_add_cmd_cqe_to_done_list(&q_ctx->n_q_ctx, &cmd_ctx->n_cmd_ctx, cmd_id);
|
|
|
|
} else {
|
|
|
|
/* Already visited this frame */
|
|
|
|
cmd_ctx = (struct nvme_rdma_cmd_ctx*)
|
|
|
|
nvme_lookup_cmd_in_done_list(pinfo, &q_ctx->n_q_ctx, cmd_id);
|
|
|
|
if (!cmd_ctx)
|
|
|
|
goto not_found;
|
|
|
|
}
|
|
|
|
|
|
|
|
nvme_update_cmd_end_info(pinfo, &cmd_ctx->n_cmd_ctx);
|
|
|
|
|
|
|
|
if (cmd_ctx->n_cmd_ctx.fabric)
|
|
|
|
dissect_nvme_fabric_cqe(nvme_tvb, nvme_tree, cmd_ctx);
|
|
|
|
else
|
|
|
|
dissect_nvme_cqe(nvme_tvb, pinfo, root_tree, &cmd_ctx->n_cmd_ctx);
|
|
|
|
return;
|
|
|
|
|
|
|
|
not_found:
|
|
|
|
proto_tree_add_item(nvme_tree, hf_nvme_rdma_to_host_unknown_data, nvme_tvb,
|
|
|
|
0, NVME_FABRIC_CQE_SIZE, ENC_NA);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_nvme_to_host(tvbuff_t *nvme_tvb, packet_info *pinfo,
|
|
|
|
proto_tree *root_tree, proto_tree *nvme_tree,
|
|
|
|
struct infinibandinfo *info,
|
|
|
|
struct nvme_rdma_q_ctx *q_ctx, guint len)
|
|
|
|
{
|
2017-06-04 09:45:04 +00:00
|
|
|
struct nvme_rdma_cmd_ctx *cmd_ctx;
|
|
|
|
|
2016-12-26 05:47:57 +00:00
|
|
|
switch (info->opCode) {
|
|
|
|
case RC_SEND_ONLY:
|
2017-03-20 04:40:59 +00:00
|
|
|
case RC_SEND_ONLY_INVAL:
|
2016-12-26 05:47:57 +00:00
|
|
|
if (len == NVME_FABRIC_CQE_SIZE)
|
|
|
|
dissect_nvme_rdma_cqe(nvme_tvb, pinfo, root_tree, nvme_tree, q_ctx);
|
|
|
|
else
|
|
|
|
proto_tree_add_item(nvme_tree, hf_nvme_rdma_to_host_unknown_data, nvme_tvb,
|
|
|
|
0, len, ENC_NA);
|
|
|
|
break;
|
2017-06-04 09:45:04 +00:00
|
|
|
case RC_RDMA_WRITE_ONLY:
|
|
|
|
case RC_RDMA_WRITE_FIRST:
|
|
|
|
if (!PINFO_FD_VISITED(pinfo)) {
|
|
|
|
cmd_ctx = (struct nvme_rdma_cmd_ctx*)
|
|
|
|
nvme_lookup_data_request(&q_ctx->n_q_ctx,
|
|
|
|
info->reth_remote_key);
|
|
|
|
if (cmd_ctx) {
|
|
|
|
cmd_ctx->n_cmd_ctx.data_resp_pkt_num = pinfo->num;
|
|
|
|
nvme_add_data_response(&q_ctx->n_q_ctx, &cmd_ctx->n_cmd_ctx,
|
|
|
|
info->reth_remote_key);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
cmd_ctx = (struct nvme_rdma_cmd_ctx*)
|
|
|
|
nvme_lookup_data_response(pinfo, &q_ctx->n_q_ctx,
|
|
|
|
info->reth_remote_key);
|
|
|
|
}
|
|
|
|
if (cmd_ctx)
|
|
|
|
dissect_nvme_data_response(nvme_tvb, pinfo, root_tree, &q_ctx->n_q_ctx,
|
|
|
|
&cmd_ctx->n_cmd_ctx, len);
|
|
|
|
break;
|
2016-12-26 05:47:57 +00:00
|
|
|
default:
|
|
|
|
proto_tree_add_item(nvme_tree, hf_nvme_rdma_to_host_unknown_data, nvme_tvb,
|
|
|
|
0, len, ENC_NA);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_nvme_ib(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
|
|
{
|
|
|
|
struct infinibandinfo *info = (struct infinibandinfo *)data;
|
|
|
|
conversation_infiniband_data *conv_data = NULL;
|
|
|
|
conversation_t *conv;
|
|
|
|
proto_tree *nvme_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
struct nvme_rdma_q_ctx *q_ctx;
|
|
|
|
guint len = tvb_reported_length(tvb);
|
|
|
|
|
|
|
|
conv = find_ib_conversation(pinfo, &conv_data);
|
|
|
|
if (!conv)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
q_ctx = find_add_q_ctx(pinfo, conv);
|
|
|
|
if (!q_ctx)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, NVME_FABRICS_RDMA);
|
|
|
|
|
|
|
|
ti = proto_tree_add_item(tree, proto_nvme_rdma, tvb, 0, len, ENC_NA);
|
|
|
|
nvme_tree = proto_item_add_subtree(ti, ett_data);
|
|
|
|
|
|
|
|
nvme_publish_qid(nvme_tree, hf_nvme_rdma_cmd_qid, q_ctx->n_q_ctx.qid);
|
|
|
|
|
|
|
|
if (conv_data->client_to_server)
|
|
|
|
dissect_nvme_from_host(tvb, pinfo, tree, nvme_tree, info, q_ctx, len);
|
|
|
|
else
|
|
|
|
dissect_nvme_to_host(tvb, pinfo, tree, nvme_tree, info, q_ctx, len);
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_register_nvme_rdma(void)
|
|
|
|
{
|
|
|
|
module_t *nvme_rdma_module;
|
|
|
|
static hf_register_info hf[] = {
|
|
|
|
/* IB RDMA CM fields */
|
|
|
|
{ &hf_nvme_rdma_cm_req_recfmt,
|
|
|
|
{ "Recfmt", "nvme-rdma.cm.req.recfmt",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_req_qid,
|
|
|
|
{ "Qid", "nvme-rdma.cm.req.qid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_req_hrqsize,
|
|
|
|
{ "HrqSize", "nvme-rdma.cm.req.hrqsize",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_req_hsqsize,
|
|
|
|
{ "HsqSize", "nvme-rdma.cm.req.hsqsize",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_req_reserved,
|
|
|
|
{ "Reserved", "nvme-rdma.cm.req.reserved",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_rsp_recfmt,
|
|
|
|
{ "Recfmt", "nvme-rdma.cm.rsp.recfmt",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_rsp_crqsize,
|
|
|
|
{ "CrqSize", "nvme-rdma.cm.rsp.crqsize",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_rsp_reserved,
|
|
|
|
{ "Reserved", "nvme-rdma.cm.rsp.reserved",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_rej_recfmt,
|
|
|
|
{ "Recfmt", "nvme-rdma.cm.rej.recfmt",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_rej_status,
|
|
|
|
{ "Status", "nvme-rdma.cm.rej.status",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cm_rej_reserved,
|
|
|
|
{ "Reserved", "nvme-rdma.cm.rej.reserved",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
/* IB RDMA NVMe Command fields */
|
|
|
|
{ &hf_nvme_rdma_cmd,
|
|
|
|
{ "Cmd", "nvme-rdma.cmd",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_from_host_unknown_data,
|
|
|
|
{ "Dissection unsupported", "nvme-rdma.unknown_data",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_opc,
|
|
|
|
{ "Opcode", "nvme-rdma.cmd.opc",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.rsvd",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_cid,
|
|
|
|
{ "Command ID", "nvme-rdma.cmd.cid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_fctype,
|
|
|
|
{ "Fabric Cmd Type", "nvme-rdma.cmd.fctype",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_rsvd1,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.connect.rsvd1",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_sgl1,
|
|
|
|
{ "SGL1", "nvme-rdma.cmd.connect.sgl1",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_recfmt,
|
|
|
|
{ "Record Format", "nvme-rdma.cmd.connect.recfmt",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_qid,
|
|
|
|
{ "Queue ID", "nvme-rdma.cmd.connect.qid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_sqsize,
|
|
|
|
{ "SQ Size", "nvme-rdma.cmd.connect.sqsize",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_cattr,
|
|
|
|
{ "Connect Attributes", "nvme-rdma.cmd.connect.cattr",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_rsvd2,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.connect.rsvd2",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_kato,
|
|
|
|
{ "Keep Alive Timeout", "nvme-rdma.cmd.connect.kato",
|
2017-02-13 05:44:21 +00:00
|
|
|
FT_UINT32, BASE_DEC|BASE_UNIT_STRING, &units_milliseconds, 0x0, NULL, HFILL}
|
2016-12-26 05:47:57 +00:00
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_rsvd3,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.connect.rsvd3",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
2017-01-14 05:11:28 +00:00
|
|
|
{ &hf_nvme_rdma_cmd_data,
|
|
|
|
{ "Data", "nvme-rdma.cmd.data",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_data_hostid,
|
2017-03-19 16:07:55 +00:00
|
|
|
{ "Host Identifier", "nvme-rdma.cmd.connect.data.hostid",
|
2017-01-14 05:11:28 +00:00
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_data_cntlid,
|
|
|
|
{ "Controller ID", "nvme-rdma.cmd.connect.data.cntrlid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_data_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.connect.data.rsvd",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_data_subnqn,
|
|
|
|
{ "Subsystem NQN", "nvme-rdma.cmd.connect.data.subnqn",
|
|
|
|
FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_data_hostnqn,
|
|
|
|
{ "Host NQN", "nvme-rdma.cmd.connect.data.hostnqn",
|
|
|
|
FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_connect_data_rsvd1,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.connect.data.rsvd1",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
2016-12-26 05:47:57 +00:00
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.prop_attr.rsvd",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_rsvd1,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.prop_attr.rsvd1",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0xf8, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_size,
|
|
|
|
{ "Property Size", "nvme-rdma.cmd.prop_attr.size",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x7, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_rsvd2,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.prop_attr.rsvd2",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_offset,
|
|
|
|
{ "Offset", "nvme-rdma.cmd.prop_attr.offset",
|
|
|
|
FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_get_rsvd3,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.prop_attr.get.rsvd3",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_set_4B_value,
|
|
|
|
{ "Value", "nvme-rdma.cmd.prop_attr.set.value.4B",
|
|
|
|
FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_set_4B_value_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.prop_attr.set.value.rsvd",
|
|
|
|
FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_set_8B_value,
|
|
|
|
{ "Value", "nvme-rdma.cmd.prop_attr.set.value.8B",
|
|
|
|
FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_prop_attr_set_rsvd3,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.prop_attr.set.rsvd3",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_generic_rsvd1,
|
|
|
|
{ "Reserved", "nvme-rdma.cmd.generic.rsvd1",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_generic_field,
|
|
|
|
{ "Fabric Cmd specific field", "nvme-rdma.cmd.generic.field",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
/* IB RDMA NVMe Response fields */
|
|
|
|
{ &hf_nvme_rdma_cqe,
|
|
|
|
{ "Cqe", "nvme-rdma.cqe",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_sts,
|
|
|
|
{ "Cmd specific Status", "nvme-rdma.cqe.sts",
|
|
|
|
FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_sqhd,
|
|
|
|
{ "SQ Head Pointer", "nvme-rdma.cqe.sqhd",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cqe.rsvd",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_cid,
|
|
|
|
{ "Command ID", "nvme-rdma.cqe.cid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_status,
|
|
|
|
{ "Status", "nvme-rdma.cqe.status",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0xfffe, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_status_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cqe.status.rsvd",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x1, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_connect_cntlid,
|
|
|
|
{ "Controller ID", "nvme-rdma.cqe.connect.cntrlid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_connect_authreq,
|
|
|
|
{ "Authentication Required", "nvme-rdma.cqe.connect.authreq",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_connect_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cqe.connect.rsvd",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_prop_set_rsvd,
|
|
|
|
{ "Reserved", "nvme-rdma.cqe.prop_set.rsvd",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_to_host_unknown_data,
|
|
|
|
{ "Dissection unsupported", "nvme-rdma.unknown_data",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_pkt,
|
|
|
|
{ "Fabric Cmd in", "nvme-rdma.cmd_pkt",
|
|
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0,
|
|
|
|
"The Cmd for this transaction is in this frame", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cqe_pkt,
|
|
|
|
{ "Fabric Cqe in", "nvme-rdma.cqe_pkt",
|
|
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0,
|
|
|
|
"The Cqe for this transaction is in this frame", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_latency,
|
|
|
|
{ "Cmd Latency", "nvme-rdma.cmd_latency",
|
|
|
|
FT_DOUBLE, BASE_NONE, NULL, 0x0,
|
|
|
|
"The time between the command and completion, in usec", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_nvme_rdma_cmd_qid,
|
|
|
|
{ "Cmd Qid", "nvme-rdma.cmd.qid",
|
|
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
|
|
"Qid on which comamnd is issued", HFILL }
|
|
|
|
},
|
|
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_cm,
|
|
|
|
&ett_data,
|
|
|
|
};
|
|
|
|
|
|
|
|
proto_nvme_rdma = proto_register_protocol("NVM Express Fabrics RDMA",
|
|
|
|
NVME_FABRICS_RDMA, "nvme-rdma");
|
|
|
|
|
|
|
|
proto_register_field_array(proto_nvme_rdma, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
|
|
|
|
/* Register preferences */
|
|
|
|
//nvme_rdma_module = prefs_register_protocol(proto_nvme_rdma, proto_reg_handoff_nvme_rdma);
|
|
|
|
nvme_rdma_module = prefs_register_protocol(proto_nvme_rdma, NULL);
|
|
|
|
|
2016-12-22 20:12:27 +00:00
|
|
|
range_convert_str(wmem_epan_scope(), &gPORT_RANGE, NVME_RDMA_TCP_PORT_RANGE, MAX_TCP_PORT);
|
2016-12-26 05:47:57 +00:00
|
|
|
prefs_register_range_preference(nvme_rdma_module,
|
|
|
|
"subsystem_ports",
|
|
|
|
"Subsystem Ports Range",
|
|
|
|
"Range of NVMe Subsystem ports"
|
|
|
|
"(default " NVME_RDMA_TCP_PORT_RANGE ")",
|
|
|
|
&gPORT_RANGE, MAX_TCP_PORT);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_nvme_rdma(void)
|
|
|
|
{
|
|
|
|
heur_dissector_add("infiniband.mad.cm.private", dissect_nvme_ib_cm,
|
|
|
|
"NVMe Fabrics RDMA CM packets",
|
|
|
|
"nvme_rdma_cm_private", proto_nvme_rdma, HEURISTIC_ENABLE);
|
|
|
|
heur_dissector_add("infiniband.payload", dissect_nvme_ib,
|
|
|
|
"NVMe Fabrics RDMA packets",
|
|
|
|
"nvme_rdma", proto_nvme_rdma, HEURISTIC_ENABLE);
|
|
|
|
ib_handler = find_dissector_add_dependency("infiniband", proto_nvme_rdma);
|
|
|
|
proto_ib = dissector_handle_get_protocol_index(ib_handler);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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:
|
|
|
|
*/
|