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drbd: Sending of big packets, for payloads from 64KByte to 4GByte
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner
parent
204bba9965
commit
0b70a13dac
@ -337,13 +337,25 @@ static inline void bm_xfer_ctx_bit_to_word_offset(struct bm_xfer_ctx *c)
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* NOTE that the payload starts at a long aligned offset,
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* regardless of 32 or 64 bit arch!
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*/
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struct p_header {
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struct p_header80 {
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u32 magic;
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u16 command;
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u16 length; /* bytes of data after this header */
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u8 payload[0];
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} __packed;
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/* 8 bytes. packet FIXED for the next century! */
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/* Header for big packets, Used for data packets exceeding 64kB */
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struct p_header95 {
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u16 magic; /* use DRBD_MAGIC_BIG here */
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u16 command;
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u32 length;
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u8 payload[0];
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} __packed;
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union p_header {
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struct p_header80 h80;
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struct p_header95 h95;
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};
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/*
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* short commands, packets without payload, plain p_header:
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@ -367,7 +379,7 @@ struct p_header {
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#define DP_MAY_SET_IN_SYNC 4
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struct p_data {
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struct p_header head;
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union p_header head;
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u64 sector; /* 64 bits sector number */
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u64 block_id; /* to identify the request in protocol B&C */
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u32 seq_num;
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@ -383,7 +395,7 @@ struct p_data {
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* P_DATA_REQUEST, P_RS_DATA_REQUEST
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*/
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struct p_block_ack {
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struct p_header head;
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struct p_header80 head;
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u64 sector;
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u64 block_id;
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u32 blksize;
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@ -392,7 +404,7 @@ struct p_block_ack {
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struct p_block_req {
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struct p_header head;
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struct p_header80 head;
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u64 sector;
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u64 block_id;
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u32 blksize;
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@ -409,7 +421,7 @@ struct p_block_req {
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*/
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struct p_handshake {
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struct p_header head; /* 8 bytes */
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struct p_header80 head; /* 8 bytes */
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u32 protocol_min;
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u32 feature_flags;
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u32 protocol_max;
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@ -424,19 +436,19 @@ struct p_handshake {
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/* 80 bytes, FIXED for the next century */
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struct p_barrier {
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struct p_header head;
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struct p_header80 head;
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u32 barrier; /* barrier number _handle_ only */
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u32 pad; /* to multiple of 8 Byte */
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} __packed;
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struct p_barrier_ack {
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struct p_header head;
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struct p_header80 head;
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u32 barrier;
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u32 set_size;
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} __packed;
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struct p_rs_param {
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struct p_header head;
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struct p_header80 head;
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u32 rate;
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/* Since protocol version 88 and higher. */
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@ -444,7 +456,7 @@ struct p_rs_param {
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} __packed;
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struct p_rs_param_89 {
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struct p_header head;
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struct p_header80 head;
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u32 rate;
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/* protocol version 89: */
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char verify_alg[SHARED_SECRET_MAX];
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@ -452,7 +464,7 @@ struct p_rs_param_89 {
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} __packed;
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struct p_rs_param_95 {
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struct p_header head;
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struct p_header80 head;
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u32 rate;
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char verify_alg[SHARED_SECRET_MAX];
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char csums_alg[SHARED_SECRET_MAX];
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@ -468,7 +480,7 @@ enum drbd_conn_flags {
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};
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struct p_protocol {
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struct p_header head;
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struct p_header80 head;
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u32 protocol;
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u32 after_sb_0p;
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u32 after_sb_1p;
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@ -482,17 +494,17 @@ struct p_protocol {
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} __packed;
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struct p_uuids {
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struct p_header head;
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struct p_header80 head;
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u64 uuid[UI_EXTENDED_SIZE];
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} __packed;
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struct p_rs_uuid {
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struct p_header head;
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struct p_header80 head;
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u64 uuid;
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} __packed;
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struct p_sizes {
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struct p_header head;
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struct p_header80 head;
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u64 d_size; /* size of disk */
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u64 u_size; /* user requested size */
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u64 c_size; /* current exported size */
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@ -502,18 +514,18 @@ struct p_sizes {
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} __packed;
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struct p_state {
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struct p_header head;
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struct p_header80 head;
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u32 state;
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} __packed;
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struct p_req_state {
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struct p_header head;
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struct p_header80 head;
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u32 mask;
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u32 val;
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} __packed;
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struct p_req_state_reply {
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struct p_header head;
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struct p_header80 head;
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u32 retcode;
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} __packed;
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@ -528,7 +540,7 @@ struct p_drbd06_param {
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} __packed;
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struct p_discard {
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struct p_header head;
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struct p_header80 head;
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u64 block_id;
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u32 seq_num;
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u32 pad;
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@ -544,7 +556,7 @@ enum drbd_bitmap_code {
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};
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struct p_compressed_bm {
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struct p_header head;
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struct p_header80 head;
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/* (encoding & 0x0f): actual encoding, see enum drbd_bitmap_code
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* (encoding & 0x80): polarity (set/unset) of first runlength
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* ((encoding >> 4) & 0x07): pad_bits, number of trailing zero bits
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@ -555,10 +567,10 @@ struct p_compressed_bm {
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u8 code[0];
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} __packed;
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struct p_delay_probe {
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struct p_header head;
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u32 seq_num; /* sequence number to match the two probe packets */
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u32 offset; /* usecs the probe got sent after the reference time point */
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struct p_delay_probe93 {
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struct p_header80 head;
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u32 seq_num; /* sequence number to match the two probe packets */
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u32 offset; /* usecs the probe got sent after the reference time point */
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} __packed;
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/* DCBP: Drbd Compressed Bitmap Packet ... */
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@ -605,7 +617,7 @@ DCBP_set_pad_bits(struct p_compressed_bm *p, int n)
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* so we need to use the fixed size 4KiB page size
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* most architechtures have used for a long time.
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*/
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#define BM_PACKET_PAYLOAD_BYTES (4096 - sizeof(struct p_header))
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#define BM_PACKET_PAYLOAD_BYTES (4096 - sizeof(struct p_header80))
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#define BM_PACKET_WORDS (BM_PACKET_PAYLOAD_BYTES/sizeof(long))
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#define BM_PACKET_VLI_BYTES_MAX (4096 - sizeof(struct p_compressed_bm))
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#if (PAGE_SIZE < 4096)
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@ -614,7 +626,7 @@ DCBP_set_pad_bits(struct p_compressed_bm *p, int n)
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#endif
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union p_polymorph {
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struct p_header header;
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struct p_header80 header;
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struct p_handshake handshake;
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struct p_data data;
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struct p_block_ack block_ack;
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@ -1188,12 +1200,12 @@ extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_f
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extern int _drbd_send_state(struct drbd_conf *mdev);
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extern int drbd_send_state(struct drbd_conf *mdev);
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extern int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
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enum drbd_packets cmd, struct p_header *h,
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enum drbd_packets cmd, struct p_header80 *h,
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size_t size, unsigned msg_flags);
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#define USE_DATA_SOCKET 1
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#define USE_META_SOCKET 0
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extern int drbd_send_cmd(struct drbd_conf *mdev, int use_data_socket,
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enum drbd_packets cmd, struct p_header *h,
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enum drbd_packets cmd, struct p_header80 *h,
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size_t size);
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extern int drbd_send_cmd2(struct drbd_conf *mdev, enum drbd_packets cmd,
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char *data, size_t size);
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@ -1936,19 +1948,19 @@ static inline void request_ping(struct drbd_conf *mdev)
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static inline int drbd_send_short_cmd(struct drbd_conf *mdev,
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enum drbd_packets cmd)
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{
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struct p_header h;
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struct p_header80 h;
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return drbd_send_cmd(mdev, USE_DATA_SOCKET, cmd, &h, sizeof(h));
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}
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static inline int drbd_send_ping(struct drbd_conf *mdev)
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{
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struct p_header h;
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struct p_header80 h;
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return drbd_send_cmd(mdev, USE_META_SOCKET, P_PING, &h, sizeof(h));
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}
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static inline int drbd_send_ping_ack(struct drbd_conf *mdev)
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{
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struct p_header h;
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struct p_header80 h;
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return drbd_send_cmd(mdev, USE_META_SOCKET, P_PING_ACK, &h, sizeof(h));
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}
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@ -1647,7 +1647,7 @@ void drbd_thread_current_set_cpu(struct drbd_conf *mdev)
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/* the appropriate socket mutex must be held already */
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int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
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enum drbd_packets cmd, struct p_header *h,
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enum drbd_packets cmd, struct p_header80 *h,
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size_t size, unsigned msg_flags)
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{
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int sent, ok;
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@ -1657,7 +1657,7 @@ int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
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h->magic = BE_DRBD_MAGIC;
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h->command = cpu_to_be16(cmd);
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h->length = cpu_to_be16(size-sizeof(struct p_header));
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h->length = cpu_to_be16(size-sizeof(struct p_header80));
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sent = drbd_send(mdev, sock, h, size, msg_flags);
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@ -1672,7 +1672,7 @@ int _drbd_send_cmd(struct drbd_conf *mdev, struct socket *sock,
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* when we hold the appropriate socket mutex.
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*/
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int drbd_send_cmd(struct drbd_conf *mdev, int use_data_socket,
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enum drbd_packets cmd, struct p_header *h, size_t size)
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enum drbd_packets cmd, struct p_header80 *h, size_t size)
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{
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int ok = 0;
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struct socket *sock;
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@ -1700,7 +1700,7 @@ int drbd_send_cmd(struct drbd_conf *mdev, int use_data_socket,
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int drbd_send_cmd2(struct drbd_conf *mdev, enum drbd_packets cmd, char *data,
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size_t size)
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{
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struct p_header h;
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struct p_header80 h;
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int ok;
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h.magic = BE_DRBD_MAGIC;
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@ -1807,7 +1807,7 @@ int drbd_send_protocol(struct drbd_conf *mdev)
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strcpy(p->integrity_alg, mdev->net_conf->integrity_alg);
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rv = drbd_send_cmd(mdev, USE_DATA_SOCKET, P_PROTOCOL,
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(struct p_header *)p, size);
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(struct p_header80 *)p, size);
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kfree(p);
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return rv;
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}
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@ -1833,7 +1833,7 @@ int _drbd_send_uuids(struct drbd_conf *mdev, u64 uuid_flags)
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put_ldev(mdev);
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return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_UUIDS,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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}
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int drbd_send_uuids(struct drbd_conf *mdev)
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@ -1854,7 +1854,7 @@ int drbd_send_sync_uuid(struct drbd_conf *mdev, u64 val)
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p.uuid = cpu_to_be64(val);
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return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_SYNC_UUID,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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}
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int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags)
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@ -1884,7 +1884,7 @@ int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags fl
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p.dds_flags = cpu_to_be16(flags);
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ok = drbd_send_cmd(mdev, USE_DATA_SOCKET, P_SIZES,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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return ok;
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}
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@ -1909,7 +1909,7 @@ int drbd_send_state(struct drbd_conf *mdev)
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if (likely(sock != NULL)) {
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ok = _drbd_send_cmd(mdev, sock, P_STATE,
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(struct p_header *)&p, sizeof(p), 0);
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(struct p_header80 *)&p, sizeof(p), 0);
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}
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mutex_unlock(&mdev->data.mutex);
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@ -1927,7 +1927,7 @@ int drbd_send_state_req(struct drbd_conf *mdev,
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p.val = cpu_to_be32(val.i);
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return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_STATE_CHG_REQ,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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}
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int drbd_send_sr_reply(struct drbd_conf *mdev, int retcode)
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@ -1937,7 +1937,7 @@ int drbd_send_sr_reply(struct drbd_conf *mdev, int retcode)
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p.retcode = cpu_to_be32(retcode);
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return drbd_send_cmd(mdev, USE_META_SOCKET, P_STATE_CHG_REPLY,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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}
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int fill_bitmap_rle_bits(struct drbd_conf *mdev,
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@ -2036,7 +2036,7 @@ int fill_bitmap_rle_bits(struct drbd_conf *mdev,
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enum { OK, FAILED, DONE }
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send_bitmap_rle_or_plain(struct drbd_conf *mdev,
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struct p_header *h, struct bm_xfer_ctx *c)
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struct p_header80 *h, struct bm_xfer_ctx *c)
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{
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struct p_compressed_bm *p = (void*)h;
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unsigned long num_words;
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@ -2066,12 +2066,12 @@ send_bitmap_rle_or_plain(struct drbd_conf *mdev,
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if (len)
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drbd_bm_get_lel(mdev, c->word_offset, num_words, (unsigned long*)h->payload);
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ok = _drbd_send_cmd(mdev, mdev->data.socket, P_BITMAP,
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h, sizeof(struct p_header) + len, 0);
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h, sizeof(struct p_header80) + len, 0);
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c->word_offset += num_words;
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c->bit_offset = c->word_offset * BITS_PER_LONG;
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c->packets[1]++;
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c->bytes[1] += sizeof(struct p_header) + len;
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c->bytes[1] += sizeof(struct p_header80) + len;
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if (c->bit_offset > c->bm_bits)
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c->bit_offset = c->bm_bits;
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@ -2087,14 +2087,14 @@ send_bitmap_rle_or_plain(struct drbd_conf *mdev,
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int _drbd_send_bitmap(struct drbd_conf *mdev)
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{
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struct bm_xfer_ctx c;
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struct p_header *p;
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struct p_header80 *p;
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int ret;
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ERR_IF(!mdev->bitmap) return FALSE;
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/* maybe we should use some per thread scratch page,
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* and allocate that during initial device creation? */
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p = (struct p_header *) __get_free_page(GFP_NOIO);
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p = (struct p_header80 *) __get_free_page(GFP_NOIO);
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if (!p) {
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dev_err(DEV, "failed to allocate one page buffer in %s\n", __func__);
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return FALSE;
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@ -2152,7 +2152,7 @@ int drbd_send_b_ack(struct drbd_conf *mdev, u32 barrier_nr, u32 set_size)
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if (mdev->state.conn < C_CONNECTED)
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return FALSE;
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ok = drbd_send_cmd(mdev, USE_META_SOCKET, P_BARRIER_ACK,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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return ok;
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}
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@ -2180,7 +2180,7 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd,
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if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED)
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return FALSE;
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ok = drbd_send_cmd(mdev, USE_META_SOCKET, cmd,
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(struct p_header *)&p, sizeof(p));
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(struct p_header80 *)&p, sizeof(p));
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return ok;
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}
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@ -2188,8 +2188,8 @@ int drbd_send_ack_dp(struct drbd_conf *mdev, enum drbd_packets cmd,
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struct p_data *dp)
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{
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const int header_size = sizeof(struct p_data)
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- sizeof(struct p_header);
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int data_size = ((struct p_header *)dp)->length - header_size;
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- sizeof(struct p_header80);
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int data_size = ((struct p_header80 *)dp)->length - header_size;
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return _drbd_send_ack(mdev, cmd, dp->sector, cpu_to_be32(data_size),
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dp->block_id);
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@ -2238,7 +2238,7 @@ int drbd_send_drequest(struct drbd_conf *mdev, int cmd,
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p.blksize = cpu_to_be32(size);
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ok = drbd_send_cmd(mdev, USE_DATA_SOCKET, cmd,
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||||
(struct p_header *)&p, sizeof(p));
|
||||
(struct p_header80 *)&p, sizeof(p));
|
||||
return ok;
|
||||
}
|
||||
|
||||
@ -2256,7 +2256,7 @@ int drbd_send_drequest_csum(struct drbd_conf *mdev,
|
||||
|
||||
p.head.magic = BE_DRBD_MAGIC;
|
||||
p.head.command = cpu_to_be16(cmd);
|
||||
p.head.length = cpu_to_be16(sizeof(p) - sizeof(struct p_header) + digest_size);
|
||||
p.head.length = cpu_to_be16(sizeof(p) - sizeof(struct p_header80) + digest_size);
|
||||
|
||||
mutex_lock(&mdev->data.mutex);
|
||||
|
||||
@ -2278,7 +2278,7 @@ int drbd_send_ov_request(struct drbd_conf *mdev, sector_t sector, int size)
|
||||
p.blksize = cpu_to_be32(size);
|
||||
|
||||
ok = drbd_send_cmd(mdev, USE_DATA_SOCKET, P_OV_REQUEST,
|
||||
(struct p_header *)&p, sizeof(p));
|
||||
(struct p_header80 *)&p, sizeof(p));
|
||||
return ok;
|
||||
}
|
||||
|
||||
@ -2447,10 +2447,17 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
|
||||
dgs = (mdev->agreed_pro_version >= 87 && mdev->integrity_w_tfm) ?
|
||||
crypto_hash_digestsize(mdev->integrity_w_tfm) : 0;
|
||||
|
||||
p.head.magic = BE_DRBD_MAGIC;
|
||||
p.head.command = cpu_to_be16(P_DATA);
|
||||
p.head.length =
|
||||
cpu_to_be16(sizeof(p) - sizeof(struct p_header) + dgs + req->size);
|
||||
if (req->size <= (1 << 15)) {
|
||||
p.head.h80.magic = BE_DRBD_MAGIC;
|
||||
p.head.h80.command = cpu_to_be16(P_DATA);
|
||||
p.head.h80.length =
|
||||
cpu_to_be16(sizeof(p) - sizeof(union p_header) + dgs + req->size);
|
||||
} else {
|
||||
p.head.h95.magic = BE_DRBD_MAGIC_BIG;
|
||||
p.head.h95.command = cpu_to_be16(P_DATA);
|
||||
p.head.h95.length =
|
||||
cpu_to_be32(sizeof(p) - sizeof(union p_header) + dgs + req->size);
|
||||
}
|
||||
|
||||
p.sector = cpu_to_be64(req->sector);
|
||||
p.block_id = (unsigned long)req;
|
||||
@ -2511,10 +2518,17 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,
|
||||
dgs = (mdev->agreed_pro_version >= 87 && mdev->integrity_w_tfm) ?
|
||||
crypto_hash_digestsize(mdev->integrity_w_tfm) : 0;
|
||||
|
||||
p.head.magic = BE_DRBD_MAGIC;
|
||||
p.head.command = cpu_to_be16(cmd);
|
||||
p.head.length =
|
||||
cpu_to_be16(sizeof(p) - sizeof(struct p_header) + dgs + e->size);
|
||||
if (e->size <= (1 << 15)) {
|
||||
p.head.h80.magic = BE_DRBD_MAGIC;
|
||||
p.head.h80.command = cpu_to_be16(cmd);
|
||||
p.head.h80.length =
|
||||
cpu_to_be16(sizeof(p) - sizeof(struct p_header80) + dgs + e->size);
|
||||
} else {
|
||||
p.head.h95.magic = BE_DRBD_MAGIC_BIG;
|
||||
p.head.h95.command = cpu_to_be16(cmd);
|
||||
p.head.h95.length =
|
||||
cpu_to_be32(sizeof(p) - sizeof(struct p_header80) + dgs + e->size);
|
||||
}
|
||||
|
||||
p.sector = cpu_to_be64(e->sector);
|
||||
p.block_id = e->block_id;
|
||||
@ -2527,8 +2541,7 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,
|
||||
if (!drbd_get_data_sock(mdev))
|
||||
return 0;
|
||||
|
||||
ok = sizeof(p) == drbd_send(mdev, mdev->data.socket, &p,
|
||||
sizeof(p), dgs ? MSG_MORE : 0);
|
||||
ok = sizeof(p) == drbd_send(mdev, mdev->data.socket, &p, sizeof(p), dgs ? MSG_MORE : 0);
|
||||
if (ok && dgs) {
|
||||
dgb = mdev->int_dig_out;
|
||||
drbd_csum_ee(mdev, mdev->integrity_w_tfm, e, dgb);
|
||||
|
||||
@ -720,14 +720,14 @@ out:
|
||||
static int drbd_send_fp(struct drbd_conf *mdev,
|
||||
struct socket *sock, enum drbd_packets cmd)
|
||||
{
|
||||
struct p_header *h = (struct p_header *) &mdev->data.sbuf.header;
|
||||
struct p_header80 *h = (struct p_header80 *) &mdev->data.sbuf.header;
|
||||
|
||||
return _drbd_send_cmd(mdev, sock, cmd, h, sizeof(*h), 0);
|
||||
}
|
||||
|
||||
static enum drbd_packets drbd_recv_fp(struct drbd_conf *mdev, struct socket *sock)
|
||||
{
|
||||
struct p_header *h = (struct p_header *) &mdev->data.sbuf.header;
|
||||
struct p_header80 *h = (struct p_header80 *) &mdev->data.sbuf.header;
|
||||
int rr;
|
||||
|
||||
rr = drbd_recv_short(mdev, sock, h, sizeof(*h), 0);
|
||||
@ -944,7 +944,7 @@ out_release_sockets:
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int drbd_recv_header(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int drbd_recv_header(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
int r;
|
||||
|
||||
@ -1266,7 +1266,7 @@ int w_e_reissue(struct drbd_conf *mdev, struct drbd_work *w, int cancel) __relea
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int receive_Barrier(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_Barrier(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
int rv, issue_flush;
|
||||
struct p_barrier *p = (struct p_barrier *)h;
|
||||
@ -1570,7 +1570,7 @@ fail:
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static int receive_DataReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_DataReply(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct drbd_request *req;
|
||||
sector_t sector;
|
||||
@ -1610,7 +1610,7 @@ static int receive_DataReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
return ok;
|
||||
}
|
||||
|
||||
static int receive_RSDataReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_RSDataReply(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
sector_t sector;
|
||||
unsigned int header_size, data_size;
|
||||
@ -1767,7 +1767,7 @@ static int drbd_wait_peer_seq(struct drbd_conf *mdev, const u32 packet_seq)
|
||||
}
|
||||
|
||||
/* mirrored write */
|
||||
static int receive_Data(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_Data(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
sector_t sector;
|
||||
struct drbd_epoch_entry *e;
|
||||
@ -2066,7 +2066,7 @@ int drbd_rs_should_slow_down(struct drbd_conf *mdev)
|
||||
}
|
||||
|
||||
|
||||
static int receive_DataRequest(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_DataRequest(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
sector_t sector;
|
||||
const sector_t capacity = drbd_get_capacity(mdev->this_bdev);
|
||||
@ -2756,7 +2756,7 @@ static int cmp_after_sb(enum drbd_after_sb_p peer, enum drbd_after_sb_p self)
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int receive_protocol(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_protocol(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_protocol *p = (struct p_protocol *)h;
|
||||
int header_size, data_size;
|
||||
@ -2862,7 +2862,7 @@ struct crypto_hash *drbd_crypto_alloc_digest_safe(const struct drbd_conf *mdev,
|
||||
return tfm;
|
||||
}
|
||||
|
||||
static int receive_SyncParam(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_SyncParam(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
int ok = TRUE;
|
||||
struct p_rs_param_95 *p = (struct p_rs_param_95 *)h;
|
||||
@ -3032,7 +3032,7 @@ static void warn_if_differ_considerably(struct drbd_conf *mdev,
|
||||
(unsigned long long)a, (unsigned long long)b);
|
||||
}
|
||||
|
||||
static int receive_sizes(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_sizes(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_sizes *p = (struct p_sizes *)h;
|
||||
enum determine_dev_size dd = unchanged;
|
||||
@ -3148,7 +3148,7 @@ static int receive_sizes(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int receive_uuids(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_uuids(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_uuids *p = (struct p_uuids *)h;
|
||||
u64 *p_uuid;
|
||||
@ -3241,7 +3241,7 @@ static union drbd_state convert_state(union drbd_state ps)
|
||||
return ms;
|
||||
}
|
||||
|
||||
static int receive_req_state(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_req_state(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_req_state *p = (struct p_req_state *)h;
|
||||
union drbd_state mask, val;
|
||||
@ -3271,7 +3271,7 @@ static int receive_req_state(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int receive_state(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_state(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_state *p = (struct p_state *)h;
|
||||
enum drbd_conns nconn, oconn;
|
||||
@ -3395,7 +3395,7 @@ static int receive_state(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int receive_sync_uuid(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_sync_uuid(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_rs_uuid *p = (struct p_rs_uuid *)h;
|
||||
|
||||
@ -3428,7 +3428,7 @@ static int receive_sync_uuid(struct drbd_conf *mdev, struct p_header *h)
|
||||
enum receive_bitmap_ret { OK, DONE, FAILED };
|
||||
|
||||
static enum receive_bitmap_ret
|
||||
receive_bitmap_plain(struct drbd_conf *mdev, struct p_header *h,
|
||||
receive_bitmap_plain(struct drbd_conf *mdev, struct p_header80 *h,
|
||||
unsigned long *buffer, struct bm_xfer_ctx *c)
|
||||
{
|
||||
unsigned num_words = min_t(size_t, BM_PACKET_WORDS, c->bm_words - c->word_offset);
|
||||
@ -3533,7 +3533,7 @@ void INFO_bm_xfer_stats(struct drbd_conf *mdev,
|
||||
const char *direction, struct bm_xfer_ctx *c)
|
||||
{
|
||||
/* what would it take to transfer it "plaintext" */
|
||||
unsigned plain = sizeof(struct p_header) *
|
||||
unsigned plain = sizeof(struct p_header80) *
|
||||
((c->bm_words+BM_PACKET_WORDS-1)/BM_PACKET_WORDS+1)
|
||||
+ c->bm_words * sizeof(long);
|
||||
unsigned total = c->bytes[0] + c->bytes[1];
|
||||
@ -3571,7 +3571,7 @@ void INFO_bm_xfer_stats(struct drbd_conf *mdev,
|
||||
in order to be agnostic to the 32 vs 64 bits issue.
|
||||
|
||||
returns 0 on failure, 1 if we successfully received it. */
|
||||
static int receive_bitmap(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_bitmap(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct bm_xfer_ctx c;
|
||||
void *buffer;
|
||||
@ -3623,7 +3623,7 @@ static int receive_bitmap(struct drbd_conf *mdev, struct p_header *h)
|
||||
}
|
||||
|
||||
c.packets[h->command == P_BITMAP]++;
|
||||
c.bytes[h->command == P_BITMAP] += sizeof(struct p_header) + h->length;
|
||||
c.bytes[h->command == P_BITMAP] += sizeof(struct p_header80) + h->length;
|
||||
|
||||
if (ret != OK)
|
||||
break;
|
||||
@ -3659,7 +3659,7 @@ static int receive_bitmap(struct drbd_conf *mdev, struct p_header *h)
|
||||
return ok;
|
||||
}
|
||||
|
||||
static int receive_skip_(struct drbd_conf *mdev, struct p_header *h, int silent)
|
||||
static int receive_skip_(struct drbd_conf *mdev, struct p_header80 *h, int silent)
|
||||
{
|
||||
/* TODO zero copy sink :) */
|
||||
static char sink[128];
|
||||
@ -3679,17 +3679,17 @@ static int receive_skip_(struct drbd_conf *mdev, struct p_header *h, int silent)
|
||||
return size == 0;
|
||||
}
|
||||
|
||||
static int receive_skip(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_skip(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
return receive_skip_(mdev, h, 0);
|
||||
}
|
||||
|
||||
static int receive_skip_silent(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_skip_silent(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
return receive_skip_(mdev, h, 1);
|
||||
}
|
||||
|
||||
static int receive_UnplugRemote(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int receive_UnplugRemote(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
if (mdev->state.disk >= D_INCONSISTENT)
|
||||
drbd_kick_lo(mdev);
|
||||
@ -3701,7 +3701,7 @@ static int receive_UnplugRemote(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
typedef int (*drbd_cmd_handler_f)(struct drbd_conf *, struct p_header *);
|
||||
typedef int (*drbd_cmd_handler_f)(struct drbd_conf *, struct p_header80 *);
|
||||
|
||||
static drbd_cmd_handler_f drbd_default_handler[] = {
|
||||
[P_DATA] = receive_Data,
|
||||
@ -3736,7 +3736,7 @@ static drbd_cmd_handler_f *drbd_opt_cmd_handler;
|
||||
static void drbdd(struct drbd_conf *mdev)
|
||||
{
|
||||
drbd_cmd_handler_f handler;
|
||||
struct p_header *header = &mdev->data.rbuf.header;
|
||||
struct p_header80 *header = &mdev->data.rbuf.header;
|
||||
|
||||
while (get_t_state(&mdev->receiver) == Running) {
|
||||
drbd_thread_current_set_cpu(mdev);
|
||||
@ -3964,7 +3964,7 @@ static int drbd_send_handshake(struct drbd_conf *mdev)
|
||||
p->protocol_min = cpu_to_be32(PRO_VERSION_MIN);
|
||||
p->protocol_max = cpu_to_be32(PRO_VERSION_MAX);
|
||||
ok = _drbd_send_cmd( mdev, mdev->data.socket, P_HAND_SHAKE,
|
||||
(struct p_header *)p, sizeof(*p), 0 );
|
||||
(struct p_header80 *)p, sizeof(*p), 0 );
|
||||
mutex_unlock(&mdev->data.mutex);
|
||||
return ok;
|
||||
}
|
||||
@ -3981,7 +3981,7 @@ static int drbd_do_handshake(struct drbd_conf *mdev)
|
||||
/* ASSERT current == mdev->receiver ... */
|
||||
struct p_handshake *p = &mdev->data.rbuf.handshake;
|
||||
const int expect = sizeof(struct p_handshake)
|
||||
-sizeof(struct p_header);
|
||||
-sizeof(struct p_header80);
|
||||
int rv;
|
||||
|
||||
rv = drbd_send_handshake(mdev);
|
||||
@ -4058,7 +4058,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
|
||||
char *response = NULL;
|
||||
char *right_response = NULL;
|
||||
char *peers_ch = NULL;
|
||||
struct p_header p;
|
||||
struct p_header80 p;
|
||||
unsigned int key_len = strlen(mdev->net_conf->shared_secret);
|
||||
unsigned int resp_size;
|
||||
struct hash_desc desc;
|
||||
@ -4231,7 +4231,7 @@ int drbdd_init(struct drbd_thread *thi)
|
||||
|
||||
/* ********* acknowledge sender ******** */
|
||||
|
||||
static int got_RqSReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_RqSReply(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_req_state_reply *p = (struct p_req_state_reply *)h;
|
||||
|
||||
@ -4249,13 +4249,13 @@ static int got_RqSReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int got_Ping(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_Ping(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
return drbd_send_ping_ack(mdev);
|
||||
|
||||
}
|
||||
|
||||
static int got_PingAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_PingAck(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
/* restore idle timeout */
|
||||
mdev->meta.socket->sk->sk_rcvtimeo = mdev->net_conf->ping_int*HZ;
|
||||
@ -4265,7 +4265,7 @@ static int got_PingAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int got_IsInSync(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_IsInSync(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_block_ack *p = (struct p_block_ack *)h;
|
||||
sector_t sector = be64_to_cpu(p->sector);
|
||||
@ -4336,7 +4336,7 @@ static int validate_req_change_req_state(struct drbd_conf *mdev,
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int got_BlockAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_BlockAck(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_block_ack *p = (struct p_block_ack *)h;
|
||||
sector_t sector = be64_to_cpu(p->sector);
|
||||
@ -4376,7 +4376,7 @@ static int got_BlockAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
_ack_id_to_req, __func__ , what);
|
||||
}
|
||||
|
||||
static int got_NegAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_NegAck(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_block_ack *p = (struct p_block_ack *)h;
|
||||
sector_t sector = be64_to_cpu(p->sector);
|
||||
@ -4396,7 +4396,7 @@ static int got_NegAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
_ack_id_to_req, __func__ , neg_acked);
|
||||
}
|
||||
|
||||
static int got_NegDReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_NegDReply(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_block_ack *p = (struct p_block_ack *)h;
|
||||
sector_t sector = be64_to_cpu(p->sector);
|
||||
@ -4409,7 +4409,7 @@ static int got_NegDReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
_ar_id_to_req, __func__ , neg_acked);
|
||||
}
|
||||
|
||||
static int got_NegRSDReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_NegRSDReply(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
sector_t sector;
|
||||
int size;
|
||||
@ -4431,7 +4431,7 @@ static int got_NegRSDReply(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int got_BarrierAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_barrier_ack *p = (struct p_barrier_ack *)h;
|
||||
|
||||
@ -4440,7 +4440,7 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int got_OVResult(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_OVResult(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
struct p_block_ack *p = (struct p_block_ack *)h;
|
||||
struct drbd_work *w;
|
||||
@ -4474,7 +4474,7 @@ static int got_OVResult(struct drbd_conf *mdev, struct p_header *h)
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static int got_something_to_ignore_m(struct drbd_conf *mdev, struct p_header *h)
|
||||
static int got_something_to_ignore_m(struct drbd_conf *mdev, struct p_header80 *h)
|
||||
{
|
||||
/* IGNORE */
|
||||
return TRUE;
|
||||
@ -4482,7 +4482,7 @@ static int got_something_to_ignore_m(struct drbd_conf *mdev, struct p_header *h)
|
||||
|
||||
struct asender_cmd {
|
||||
size_t pkt_size;
|
||||
int (*process)(struct drbd_conf *mdev, struct p_header *h);
|
||||
int (*process)(struct drbd_conf *mdev, struct p_header80 *h);
|
||||
};
|
||||
|
||||
static struct asender_cmd *get_asender_cmd(int cmd)
|
||||
@ -4491,8 +4491,8 @@ static struct asender_cmd *get_asender_cmd(int cmd)
|
||||
/* anything missing from this table is in
|
||||
* the drbd_cmd_handler (drbd_default_handler) table,
|
||||
* see the beginning of drbdd() */
|
||||
[P_PING] = { sizeof(struct p_header), got_Ping },
|
||||
[P_PING_ACK] = { sizeof(struct p_header), got_PingAck },
|
||||
[P_PING] = { sizeof(struct p_header80), got_Ping },
|
||||
[P_PING_ACK] = { sizeof(struct p_header80), got_PingAck },
|
||||
[P_RECV_ACK] = { sizeof(struct p_block_ack), got_BlockAck },
|
||||
[P_WRITE_ACK] = { sizeof(struct p_block_ack), got_BlockAck },
|
||||
[P_RS_WRITE_ACK] = { sizeof(struct p_block_ack), got_BlockAck },
|
||||
@ -4504,7 +4504,7 @@ static struct asender_cmd *get_asender_cmd(int cmd)
|
||||
[P_BARRIER_ACK] = { sizeof(struct p_barrier_ack), got_BarrierAck },
|
||||
[P_STATE_CHG_REPLY] = { sizeof(struct p_req_state_reply), got_RqSReply },
|
||||
[P_RS_IS_IN_SYNC] = { sizeof(struct p_block_ack), got_IsInSync },
|
||||
[P_DELAY_PROBE] = { sizeof(struct p_delay_probe), got_something_to_ignore_m },
|
||||
[P_DELAY_PROBE] = { sizeof(struct p_delay_probe93), got_something_to_ignore_m },
|
||||
[P_MAX_CMD] = { 0, NULL },
|
||||
};
|
||||
if (cmd > P_MAX_CMD || asender_tbl[cmd].process == NULL)
|
||||
@ -4515,13 +4515,13 @@ static struct asender_cmd *get_asender_cmd(int cmd)
|
||||
int drbd_asender(struct drbd_thread *thi)
|
||||
{
|
||||
struct drbd_conf *mdev = thi->mdev;
|
||||
struct p_header *h = &mdev->meta.rbuf.header;
|
||||
struct p_header80 *h = &mdev->meta.rbuf.header;
|
||||
struct asender_cmd *cmd = NULL;
|
||||
|
||||
int rv, len;
|
||||
void *buf = h;
|
||||
int received = 0;
|
||||
int expect = sizeof(struct p_header);
|
||||
int expect = sizeof(struct p_header80);
|
||||
int empty;
|
||||
|
||||
sprintf(current->comm, "drbd%d_asender", mdev_to_minor(mdev));
|
||||
@ -4621,7 +4621,7 @@ int drbd_asender(struct drbd_thread *thi)
|
||||
goto disconnect;
|
||||
}
|
||||
expect = cmd->pkt_size;
|
||||
ERR_IF(len != expect-sizeof(struct p_header))
|
||||
ERR_IF(len != expect-sizeof(struct p_header80))
|
||||
goto reconnect;
|
||||
}
|
||||
if (received == expect) {
|
||||
@ -4631,7 +4631,7 @@ int drbd_asender(struct drbd_thread *thi)
|
||||
|
||||
buf = h;
|
||||
received = 0;
|
||||
expect = sizeof(struct p_header);
|
||||
expect = sizeof(struct p_header80);
|
||||
cmd = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
@ -1204,7 +1204,7 @@ int w_send_barrier(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
|
||||
* dec_ap_pending will be done in got_BarrierAck
|
||||
* or (on connection loss) in w_clear_epoch. */
|
||||
ok = _drbd_send_cmd(mdev, mdev->data.socket, P_BARRIER,
|
||||
(struct p_header *)p, sizeof(*p), 0);
|
||||
(struct p_header80 *)p, sizeof(*p), 0);
|
||||
drbd_put_data_sock(mdev);
|
||||
|
||||
return ok;
|
||||
|
||||
@ -318,6 +318,8 @@ enum drbd_timeout_flag {
|
||||
|
||||
#define DRBD_MAGIC 0x83740267
|
||||
#define BE_DRBD_MAGIC __constant_cpu_to_be32(DRBD_MAGIC)
|
||||
#define DRBD_MAGIC_BIG 0x835a
|
||||
#define BE_DRBD_MAGIC_BIG __constant_cpu_to_be16(DRBD_MAGIC_BIG)
|
||||
|
||||
/* these are of type "int" */
|
||||
#define DRBD_MD_INDEX_INTERNAL -1
|
||||
|
||||
Loading…
Reference in New Issue
Block a user