1 files changed, 100 insertions, 0 deletions
diff --git a/src/spdk/lib/ioat/ioat_internal.h b/src/spdk/lib/ioat/ioat_internal.h
new file mode 100644
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+++ b/src/spdk/lib/ioat/ioat_internal.h
@@ -0,0 +1,100 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __IOAT_INTERNAL_H__
+#define __IOAT_INTERNAL_H__
+
+#include "spdk/stdinc.h"
+
+#include "spdk/ioat.h"
+#include "spdk/ioat_spec.h"
+#include "spdk/queue.h"
+#include "spdk/mmio.h"
+
+/* Allocate 1 << 15 (32K) descriptors per channel by default. */
+#define IOAT_DEFAULT_ORDER			15
+
+struct ioat_descriptor {
+	uint64_t		phys_addr;
+	spdk_ioat_req_cb	callback_fn;
+	void			*callback_arg;
+};
+
+/* One of these per allocated PCI device. */
+struct spdk_ioat_chan {
+	/* Opaque handle to upper layer */
+	struct spdk_pci_device		*device;
+	uint64_t            max_xfer_size;
+	volatile struct spdk_ioat_registers *regs;
+
+	volatile uint64_t   *comp_update;
+
+	uint32_t            head;
+	uint32_t            tail;
+
+	uint32_t            ring_size_order;
+	uint64_t            last_seen;
+
+	struct ioat_descriptor		*ring;
+	union spdk_ioat_hw_desc		*hw_ring;
+	uint32_t			dma_capabilities;
+
+	/* tailq entry for attached_chans */
+	TAILQ_ENTRY(spdk_ioat_chan)	tailq;
+};
+
+static inline uint32_t
+is_ioat_active(uint64_t status)
+{
+	return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_ACTIVE;
+}
+
+static inline uint32_t
+is_ioat_idle(uint64_t status)
+{
+	return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_IDLE;
+}
+
+static inline uint32_t
+is_ioat_halted(uint64_t status)
+{
+	return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_HALTED;
+}
+
+static inline uint32_t
+is_ioat_suspended(uint64_t status)
+{
+	return (status & SPDK_IOAT_CHANSTS_STATUS) == SPDK_IOAT_CHANSTS_SUSPENDED;
+}
+
+#endif /* __IOAT_INTERNAL_H__ */