53ec54c929
Change-Id: I4b51b8adf273b12794e0c98dd99e7f29cdf689c1 Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
329 lines
8.3 KiB
C
329 lines
8.3 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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/**
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* \file
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* I/OAT specification definitions
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*/
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#ifndef SPDK_IOAT_SPEC_H
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#define SPDK_IOAT_SPEC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <inttypes.h>
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#include "spdk/assert.h"
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#define SPDK_IOAT_INTRCTRL_MASTER_INT_EN 0x01
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#define SPDK_IOAT_VER_3_0 0x30
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#define SPDK_IOAT_VER_3_3 0x33
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/* DMA Channel Registers */
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#define SPDK_IOAT_CHANCTRL_CHANNEL_PRIORITY_MASK 0xF000
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#define SPDK_IOAT_CHANCTRL_COMPL_DCA_EN 0x0200
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#define SPDK_IOAT_CHANCTRL_CHANNEL_IN_USE 0x0100
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#define SPDK_IOAT_CHANCTRL_DESCRIPTOR_ADDR_SNOOP_CONTROL 0x0020
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#define SPDK_IOAT_CHANCTRL_ERR_INT_EN 0x0010
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#define SPDK_IOAT_CHANCTRL_ANY_ERR_ABORT_EN 0x0008
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#define SPDK_IOAT_CHANCTRL_ERR_COMPLETION_EN 0x0004
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#define SPDK_IOAT_CHANCTRL_INT_REARM 0x0001
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/* DMA Channel Capabilities */
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#define SPDK_IOAT_DMACAP_PB (1 << 0)
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#define SPDK_IOAT_DMACAP_DCA (1 << 4)
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#define SPDK_IOAT_DMACAP_BFILL (1 << 6)
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#define SPDK_IOAT_DMACAP_XOR (1 << 8)
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#define SPDK_IOAT_DMACAP_PQ (1 << 9)
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#define SPDK_IOAT_DMACAP_DMA_DIF (1 << 10)
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struct spdk_ioat_registers {
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uint8_t chancnt;
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uint8_t xfercap;
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uint8_t genctrl;
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uint8_t intrctrl;
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uint32_t attnstatus;
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uint8_t cbver; /* 0x08 */
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uint8_t reserved4[0x3]; /* 0x09 */
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uint16_t intrdelay; /* 0x0C */
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uint16_t cs_status; /* 0x0E */
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uint32_t dmacapability; /* 0x10 */
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uint8_t reserved5[0x6C]; /* 0x14 */
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uint16_t chanctrl; /* 0x80 */
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uint8_t reserved6[0x2]; /* 0x82 */
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uint8_t chancmd; /* 0x84 */
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uint8_t reserved3[1]; /* 0x85 */
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uint16_t dmacount; /* 0x86 */
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uint64_t chansts; /* 0x88 */
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uint64_t chainaddr; /* 0x90 */
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uint64_t chancmp; /* 0x98 */
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uint8_t reserved2[0x8]; /* 0xA0 */
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uint32_t chanerr; /* 0xA8 */
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uint32_t chanerrmask; /* 0xAC */
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} __attribute__((packed));
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#define SPDK_IOAT_CHANCMD_RESET 0x20
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#define SPDK_IOAT_CHANCMD_SUSPEND 0x04
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#define SPDK_IOAT_CHANSTS_STATUS 0x7ULL
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#define SPDK_IOAT_CHANSTS_ACTIVE 0x0
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#define SPDK_IOAT_CHANSTS_IDLE 0x1
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#define SPDK_IOAT_CHANSTS_SUSPENDED 0x2
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#define SPDK_IOAT_CHANSTS_HALTED 0x3
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#define SPDK_IOAT_CHANSTS_ARMED 0x4
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#define SPDK_IOAT_CHANSTS_UNAFFILIATED_ERROR 0x8ULL
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#define SPDK_IOAT_CHANSTS_SOFT_ERROR 0x10ULL
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#define SPDK_IOAT_CHANSTS_COMPLETED_DESCRIPTOR_MASK (~0x3FULL)
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#define SPDK_IOAT_CHANCMP_ALIGN 8 /* CHANCMP address must be 64-bit aligned */
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struct spdk_ioat_generic_hw_desc {
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uint32_t size;
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union {
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uint32_t control_raw;
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struct {
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uint32_t int_enable: 1;
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uint32_t src_snoop_disable: 1;
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uint32_t dest_snoop_disable: 1;
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uint32_t completion_update: 1;
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uint32_t fence: 1;
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uint32_t reserved2: 1;
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uint32_t src_page_break: 1;
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uint32_t dest_page_break: 1;
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uint32_t bundle: 1;
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uint32_t dest_dca: 1;
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uint32_t hint: 1;
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uint32_t reserved: 13;
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uint32_t op: 8;
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} control;
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} u;
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uint64_t src_addr;
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uint64_t dest_addr;
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uint64_t next;
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uint64_t op_specific[4];
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};
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struct spdk_ioat_dma_hw_desc {
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uint32_t size;
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union {
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uint32_t control_raw;
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struct {
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uint32_t int_enable: 1;
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uint32_t src_snoop_disable: 1;
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uint32_t dest_snoop_disable: 1;
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uint32_t completion_update: 1;
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uint32_t fence: 1;
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uint32_t null: 1;
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uint32_t src_page_break: 1;
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uint32_t dest_page_break: 1;
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uint32_t bundle: 1;
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uint32_t dest_dca: 1;
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uint32_t hint: 1;
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uint32_t reserved: 13;
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#define SPDK_IOAT_OP_COPY 0x00
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uint32_t op: 8;
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} control;
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} u;
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uint64_t src_addr;
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uint64_t dest_addr;
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uint64_t next;
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uint64_t reserved;
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uint64_t reserved2;
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uint64_t user1;
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uint64_t user2;
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};
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struct spdk_ioat_fill_hw_desc {
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uint32_t size;
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union {
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uint32_t control_raw;
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struct {
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uint32_t int_enable: 1;
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uint32_t reserved: 1;
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uint32_t dest_snoop_disable: 1;
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uint32_t completion_update: 1;
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uint32_t fence: 1;
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uint32_t reserved2: 2;
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uint32_t dest_page_break: 1;
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uint32_t bundle: 1;
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uint32_t reserved3: 15;
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#define SPDK_IOAT_OP_FILL 0x01
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uint32_t op: 8;
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} control;
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} u;
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uint64_t src_data;
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uint64_t dest_addr;
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uint64_t next;
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uint64_t reserved;
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uint64_t next_dest_addr;
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uint64_t user1;
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uint64_t user2;
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};
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struct spdk_ioat_xor_hw_desc {
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uint32_t size;
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union {
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uint32_t control_raw;
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struct {
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uint32_t int_enable: 1;
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uint32_t src_snoop_disable: 1;
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uint32_t dest_snoop_disable: 1;
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uint32_t completion_update: 1;
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uint32_t fence: 1;
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uint32_t src_count: 3;
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uint32_t bundle: 1;
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uint32_t dest_dca: 1;
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uint32_t hint: 1;
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uint32_t reserved: 13;
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#define SPDK_IOAT_OP_XOR 0x87
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#define SPDK_IOAT_OP_XOR_VAL 0x88
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uint32_t op: 8;
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} control;
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} u;
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uint64_t src_addr;
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uint64_t dest_addr;
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uint64_t next;
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uint64_t src_addr2;
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uint64_t src_addr3;
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uint64_t src_addr4;
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uint64_t src_addr5;
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};
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struct spdk_ioat_xor_ext_hw_desc {
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uint64_t src_addr6;
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uint64_t src_addr7;
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uint64_t src_addr8;
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uint64_t next;
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uint64_t reserved[4];
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};
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struct spdk_ioat_pq_hw_desc {
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uint32_t size;
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union {
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uint32_t control_raw;
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struct {
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uint32_t int_enable: 1;
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uint32_t src_snoop_disable: 1;
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uint32_t dest_snoop_disable: 1;
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uint32_t completion_update: 1;
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uint32_t fence: 1;
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uint32_t src_count: 3;
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uint32_t bundle: 1;
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uint32_t dest_dca: 1;
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uint32_t hint: 1;
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uint32_t p_disable: 1;
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uint32_t q_disable: 1;
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uint32_t reserved: 11;
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#define SPDK_IOAT_OP_PQ 0x89
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#define SPDK_IOAT_OP_PQ_VAL 0x8a
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uint32_t op: 8;
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} control;
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} u;
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uint64_t src_addr;
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uint64_t p_addr;
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uint64_t next;
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uint64_t src_addr2;
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uint64_t src_addr3;
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uint8_t coef[8];
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uint64_t q_addr;
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};
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struct spdk_ioat_pq_ext_hw_desc {
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uint64_t src_addr4;
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uint64_t src_addr5;
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uint64_t src_addr6;
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uint64_t next;
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uint64_t src_addr7;
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uint64_t src_addr8;
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uint64_t reserved[2];
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};
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struct spdk_ioat_pq_update_hw_desc {
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uint32_t size;
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union {
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uint32_t control_raw;
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struct {
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uint32_t int_enable: 1;
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uint32_t src_snoop_disable: 1;
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uint32_t dest_snoop_disable: 1;
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uint32_t completion_update: 1;
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uint32_t fence: 1;
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uint32_t src_cnt: 3;
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uint32_t bundle: 1;
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uint32_t dest_dca: 1;
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uint32_t hint: 1;
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uint32_t p_disable: 1;
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uint32_t q_disable: 1;
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uint32_t reserved: 3;
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uint32_t coef: 8;
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#define SPDK_IOAT_OP_PQ_UP 0x8b
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uint32_t op: 8;
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} control;
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} u;
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uint64_t src_addr;
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uint64_t p_addr;
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uint64_t next;
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uint64_t src_addr2;
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uint64_t p_src;
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uint64_t q_src;
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uint64_t q_addr;
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};
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struct spdk_ioat_raw_hw_desc {
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uint64_t field[8];
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};
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union spdk_ioat_hw_desc {
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struct spdk_ioat_raw_hw_desc raw;
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struct spdk_ioat_generic_hw_desc generic;
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struct spdk_ioat_dma_hw_desc dma;
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struct spdk_ioat_fill_hw_desc fill;
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struct spdk_ioat_xor_hw_desc xor_desc;
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struct spdk_ioat_xor_ext_hw_desc xor_ext;
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struct spdk_ioat_pq_hw_desc pq;
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struct spdk_ioat_pq_ext_hw_desc pq_ext;
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struct spdk_ioat_pq_update_hw_desc pq_update;
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};
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SPDK_STATIC_ASSERT(sizeof(union spdk_ioat_hw_desc) == 64, "incorrect spdk_ioat_hw_desc layout");
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPDK_IOAT_SPEC_H */
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