4c6e4d4963
The NVMe over Fabrics target library now exposes a simple function call that polls the acceptor once, and the application handles registration of the poller. Also rename the transport function pointers related to the acceptor so they better reflect their purpose. Change-Id: I5fa0d516586bf17e73afeb88ff3c2d5b0d46794d Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
91 lines
3.3 KiB
C
91 lines
3.3 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 <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 "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 nvmf_max(a,b) (((a)>(b))?(a):(b))
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#define SPDK_NVMF_DEFAULT_NUM_SESSIONS_PER_LCORE 1
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#define SPDK_NVMF_DEFAULT_SIN_PORT ((uint16_t)4420)
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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 spdk_nvmf_globals {
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uint16_t max_queue_depth;
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uint16_t max_queues_per_session;
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uint32_t in_capsule_data_size;
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uint32_t max_io_size;
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uint16_t sin_port;
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};
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int nvmf_tgt_init(uint16_t max_queue_depth, uint16_t max_conn_per_sess,
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uint32_t in_capsule_data_size, uint32_t max_io_size);
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static inline uint32_t
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nvmf_u32log2(uint32_t x)
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{
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if (x == 0) {
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/* __builtin_clz(0) is undefined, so just bail */
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return 0;
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}
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return 31u - __builtin_clz(x);
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}
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extern struct spdk_nvmf_globals g_nvmf_tgt;
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#endif /* __NVMF_INTERNAL_H__ */
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