90b6ad1f36
Change-Id: I94425fc4e394bb5033237ddc9002cd464c3f621f Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
192 lines
6.2 KiB
C
192 lines
6.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __NVMF_INTERNAL_H__
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#define __NVMF_INTERNAL_H__
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#include "nvmf.h"
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <pthread.h>
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#include "spdk/nvmf_spec.h"
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#include "spdk/assert.h"
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#include "spdk/queue.h"
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#define nvmf_min(a,b) (((a)<(b))?(a):(b))
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#define SMALL_BB_MAX_SIZE 4096
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#define LARGE_BB_MAX_SIZE (128 * 1024)
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/*
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* NVMf target supports a maximum transfer size that is equal to
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* a single allocated bounce buffer per request.
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*/
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#define SPDK_NVMF_MAX_RECV_DATA_TRANSFER_SIZE LARGE_BB_MAX_SIZE
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#define SPDK_NVMF_DEFAULT_NUM_SESSIONS_PER_LCORE 1
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#define SPDK_NVMF_DEFAULT_NODEBASE "iqn.2013-10.com.intel.spdk"
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#define SPDK_NVMF_DEFAULT_IN_CAPSULE_DATA_SIZE 1024
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#define SPDK_NVMF_DEFAULT_MAX_SESSIONS_PER_SUBSYSTEM 1
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#define SPDK_NVMF_DEFAULT_MAX_QUEUE_DEPTH 128
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#define SPDK_NVMF_DEFAULT_MAX_CONNECTIONS_PER_SESSION 4
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#define SPDK_NVMF_DEFAULT_SIN_PORT ((uint16_t)7174)
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#define OBJECT_NVMF_IO 0x30
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#define TRACE_GROUP_NVMF 0x3
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#define TRACE_NVMF_IO_START SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x0)
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#define TRACE_RDMA_READ_START SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x1)
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#define TRACE_RDMA_WRITE_START SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x2)
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#define TRACE_RDMA_READ_COMPLETE SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x3)
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#define TRACE_RDMA_WRITE_COMPLETE SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x4)
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#define TRACE_NVMF_LIB_READ_START SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x5)
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#define TRACE_NVMF_LIB_WRITE_START SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x6)
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#define TRACE_NVMF_LIB_COMPLETE SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x7)
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#define TRACE_NVMF_IO_COMPLETE SPDK_TPOINT_ID(TRACE_GROUP_NVMF, 0x8)
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struct nvmf_request;
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typedef void (*nvmf_cb_fn_t)(struct nvmf_request *);
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union sgl_shift {
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struct spdk_nvmf_keyed_sgl_descriptor nvmf_sgl;
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struct spdk_nvme_sgl_descriptor nvme_sgl;
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};
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SPDK_STATIC_ASSERT(sizeof(union sgl_shift) == 16, "Incorrect size");
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union nvmf_h2c_msg {
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struct spdk_nvmf_capsule_cmd nvmf_cmd;
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struct spdk_nvme_cmd nvme_cmd;
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struct spdk_nvmf_fabric_prop_set_cmd prop_set_cmd;
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struct spdk_nvmf_fabric_prop_get_cmd prop_get_cmd;
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struct spdk_nvmf_fabric_connect_cmd connect_cmd;
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};
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SPDK_STATIC_ASSERT(sizeof(union nvmf_h2c_msg) == 64, "Incorrect size");
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union nvmf_c2h_msg {
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struct spdk_nvmf_capsule_rsp nvmf_rsp;
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struct spdk_nvme_cpl nvme_cpl;
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struct spdk_nvmf_fabric_prop_set_rsp prop_set_rsp;
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struct spdk_nvmf_fabric_prop_get_rsp prop_get_rsp;
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struct spdk_nvmf_fabric_connect_rsp connect_rsp;
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};
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SPDK_STATIC_ASSERT(sizeof(union nvmf_c2h_msg) == 16, "Incorrect size");
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#define NVMF_H2C_MAX_MSG (sizeof(union nvmf_h2c_msg))
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#define NVMF_C2H_MAX_MSG (sizeof(union nvmf_c2h_msg))
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#define NVMF_CNTLID_SUBS_SHIFT 8
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enum pending_rdma_action {
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NVMF_PENDING_NONE = 0,
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NVMF_PENDING_CONNECT,
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NVMF_PENDING_READ,
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NVMF_PENDING_WRITE,
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NVMF_PENDING_ADMIN,
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};
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struct nvmf_request {
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struct nvmf_session *session;
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void *fabric_tx_ctx;
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void *fabric_rx_ctx;
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uint16_t cid; /* command identifier */
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uint64_t remote_addr;
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uint32_t rkey;
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uint32_t length;
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union nvmf_h2c_msg *cmd;
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union nvmf_c2h_msg *rsp;
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enum pending_rdma_action pending;
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nvmf_cb_fn_t cb_fn;
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TAILQ_ENTRY(nvmf_request) entries;
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};
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/*
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* Some NVMe command definitions not provided in the nvme_spec.h file
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*/
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/* read command dword 12 */
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struct __attribute__((packed)) nvme_read_cdw12 {
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uint16_t nlb; /* number of logical blocks */
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uint16_t rsvd : 10;
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uint8_t prinfo : 4; /* protection information field */
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uint8_t fua : 1; /* force unit access */
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uint8_t lr : 1; /* limited retry */
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};
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/* read command dword 13 */
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struct __attribute__((packed)) nvme_read_cdw13 {
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uint8_t dsm_af : 4; /* access frequency */
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uint8_t dsm_lat : 2; /* access latency */
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uint8_t dsm_seq : 1; /* sequential request */
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uint8_t dsm_inc : 1; /* incompressible */
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uint8_t rsvd[3];
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};
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struct spdk_nvmf_globals {
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char *nodebase;
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pthread_mutex_t mutex;
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int MaxInCapsuleData;
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int MaxSessionsPerSubsystem;
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int MaxQueueDepth;
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int MaxConnectionsPerSession;
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int MaxRecvDataSegmentLength;
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struct rte_mempool *rx_desc_pool;
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struct rte_mempool *tx_desc_pool;
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struct rte_mempool *nvme_request_pool;
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struct rte_mempool *bb_small_pool;
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struct rte_mempool *bb_large_pool;
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uint16_t sin_port;
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};
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void
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nvmf_complete_cmd(void *rsp, const struct spdk_nvme_cpl *cmp);
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int nvmf_tgt_init(char *nodebase, int max_in_capsule_data, int max_sessions, int max_queue_depth,
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int max_conn_per_sess, int max_recv_seg_len, int listen_port);
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int nvmf_initialize(void);
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void nvmf_shutdown(void);
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extern struct spdk_nvmf_globals g_nvmf_tgt;
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#endif /* __NVMF_INTERNAL_H__ */
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