143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
#pragma once
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#include "blockstore.h"
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#include <stdint.h>
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// Magic numbers
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#define SECONDARY_OSD_OP_MAGIC 0xf3f003b966ace9ab2bd7b10325434553
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#define SECONDARY_OSD_REPLY_MAGIC 0xd17a57243b580b99baa699b87b434553
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// Operation request headers and operation reply headers have fixed size after which comes data
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#define OSD_OP_PACKET_SIZE 0x80
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#define OSD_REPLY_PACKET_SIZE 0x80
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// Opcodes
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#define OSD_OP_MIN 0x01
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#define OSD_OP_SECONDARY_READ 0x01
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#define OSD_OP_SECONDARY_WRITE 0x02
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#define OSD_OP_SECONDARY_SYNC 0x03
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#define OSD_OP_SECONDARY_STABILIZE 0x04
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#define OSD_OP_SECONDARY_DELETE 0x05
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#define OSD_OP_SECONDARY_LIST 0x10
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#define OSD_OP_MAX 0x10
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// Alignment & limit for read/write operations
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#define OSD_RW_ALIGN 512
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#define OSD_RW_MAX 64*1024*1024
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// common request and reply headers
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struct __attribute__((__packed__)) osd_op_header_t
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{
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// magic & protocol version
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uint64_t magic;
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// operation id
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uint64_t id;
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// operation type
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uint64_t opcode;
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};
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struct __attribute__((__packed__)) osd_reply_header_t
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{
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// magic & protocol version
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uint64_t magic;
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// operation id
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uint64_t id;
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// return value
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int64_t retval;
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};
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// read or write to the secondary OSD
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struct __attribute__((__packed__)) osd_op_secondary_rw_t
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{
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osd_op_header_t header;
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// object
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object_id oid;
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// read/write version (automatic or specific)
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uint64_t version;
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// offset
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uint32_t offset;
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// length
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uint32_t len;
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};
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struct __attribute__((__packed__)) osd_reply_secondary_rw_t
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{
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osd_reply_header_t header;
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// buffer size
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uint64_t len;
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};
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// delete object on the secondary OSD
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struct __attribute__((__packed__)) osd_op_secondary_del_t
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{
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osd_op_header_t header;
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// object
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object_id oid;
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// delete version (automatic or specific)
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uint64_t version;
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};
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struct __attribute__((__packed__)) osd_reply_secondary_del_t
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{
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osd_reply_header_t header;
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};
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// sync to the secondary OSD
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struct __attribute__((__packed__)) osd_op_secondary_sync_t
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{
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osd_op_header_t header;
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};
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struct __attribute__((__packed__)) osd_reply_secondary_sync_t
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{
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osd_reply_header_t header;
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};
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// stabilize objects on the secondary OSD
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struct __attribute__((__packed__)) osd_op_secondary_stabilize_t
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{
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osd_op_header_t header;
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// obj_ver_id array length in bytes
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uint32_t len;
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};
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struct __attribute__((__packed__)) osd_reply_secondary_stabilize_t
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{
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osd_reply_header_t header;
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};
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// list objects on replica
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struct __attribute__((__packed__)) osd_op_secondary_list_t
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{
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osd_op_header_t header;
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// placement group number
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uint64_t pgnum;
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};
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struct __attribute__((__packed__)) osd_reply_secondary_list_t
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{
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osd_reply_header_t header;
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// oid array length
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uint64_t len;
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};
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union osd_any_op_t
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{
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osd_op_header_t hdr;
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osd_op_secondary_rw_t sec_rw;
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osd_op_secondary_del_t sec_del;
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osd_op_secondary_sync_t sec_sync;
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osd_op_secondary_stabilize_t sec_stabilize;
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osd_op_secondary_list_t sec_list;
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};
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union osd_any_reply_t
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{
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osd_reply_secondary_rw_t sec_rw;
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osd_reply_secondary_del_t sec_del;
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osd_reply_secondary_sync_t sec_sync;
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osd_reply_secondary_stabilize_t sec_stabilize;
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osd_reply_secondary_list_t sec_list;
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};
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static int size_ok = sizeof(osd_any_op_t) < OSD_OP_PACKET_SIZE &&
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sizeof(osd_any_reply_t) < OSD_REPLY_PACKET_SIZE
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? (perror("BUG: too small packet size"), 0) : 1;
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