b961d9cc12
Change-Id: I6a142feeaad3117bd3c75e7c5cb7231a1cfa78ae Signed-off-by: Ben Walker <benjamin.walker@intel.com>
101 lines
3.1 KiB
C
101 lines
3.1 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 __IOAT_INTERNAL_H__
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#define __IOAT_INTERNAL_H__
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#include "spdk/stdinc.h"
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#include "spdk/ioat.h"
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#include "spdk/ioat_spec.h"
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#include "spdk/queue.h"
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#include "spdk/mmio.h"
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/* Allocate 2 << 15 (32K) descriptors per channel by default. */
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#define IOAT_DEFAULT_ORDER 15
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struct ioat_descriptor {
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spdk_ioat_req_cb callback_fn;
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void *callback_arg;
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};
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/* One of these per allocated PCI device. */
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struct spdk_ioat_chan {
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/* Opaque handle to upper layer */
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void *device;
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uint64_t max_xfer_size;
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volatile struct spdk_ioat_registers *regs;
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volatile uint64_t *comp_update;
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uint32_t head;
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uint32_t tail;
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uint32_t ring_size_order;
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uint64_t last_seen;
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struct ioat_descriptor *ring;
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union spdk_ioat_hw_desc *hw_ring;
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uint64_t hw_ring_phys_addr;
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uint32_t dma_capabilities;
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/* tailq entry for attached_chans */
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TAILQ_ENTRY(spdk_ioat_chan) tailq;
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};
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static inline uint32_t
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is_ioat_active(uint64_t status)
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{
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return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_ACTIVE;
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}
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static inline uint32_t
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is_ioat_idle(uint64_t status)
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{
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return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_IDLE;
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}
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static inline uint32_t
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is_ioat_halted(uint64_t status)
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{
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return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_HALTED;
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}
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static inline uint32_t
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is_ioat_suspended(uint64_t status)
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{
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return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_SUSPENDED;
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}
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#endif /* __IOAT_INTERNAL_H__ */
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