Line data Source code
1 : #include "fd_tpu.h"
2 : #include "fd_tpu_reasm_private.h"
3 : #include "../../tango/dcache/fd_dcache.h"
4 : #include "../../tango/mcache/fd_mcache.h"
5 :
6 : FD_FN_CONST ulong
7 81 : fd_tpu_reasm_align( void ) {
8 81 : return alignof(fd_tpu_reasm_t);
9 81 : }
10 :
11 : FD_FN_CONST ulong
12 : fd_tpu_reasm_footprint( ulong depth,
13 30 : ulong burst ) {
14 :
15 30 : if( FD_UNLIKELY(
16 30 : ( fd_ulong_popcnt( depth )!=1 ) |
17 30 : ( depth>0x7fffffffUL ) |
18 30 : ( burst<2 ) |
19 30 : ( burst>0x7fffffffUL ) ) )
20 15 : return 0UL;
21 :
22 15 : ulong slot_cnt = depth+burst;
23 15 : ulong chain_cnt = fd_tpu_reasm_map_chain_cnt_est( slot_cnt );
24 15 : return FD_LAYOUT_FINI( FD_LAYOUT_APPEND( FD_LAYOUT_APPEND( FD_LAYOUT_APPEND( FD_LAYOUT_APPEND( FD_LAYOUT_INIT,
25 30 : fd_tpu_reasm_align(), sizeof(fd_tpu_reasm_t) ), /* hdr */
26 30 : alignof(uint), depth *sizeof(uint) ), /* pub_slots */
27 30 : alignof(fd_tpu_reasm_slot_t), slot_cnt*sizeof(fd_tpu_reasm_slot_t) ), /* slots */
28 30 : fd_tpu_reasm_map_align(), fd_tpu_reasm_map_footprint( chain_cnt ) ), /* map */
29 30 : fd_tpu_reasm_align() );
30 :
31 30 : }
32 :
33 : void *
34 : fd_tpu_reasm_new( void * shmem,
35 : ulong depth,
36 : ulong burst,
37 : ulong orig,
38 6 : void * dcache ) {
39 :
40 6 : if( FD_UNLIKELY( !shmem ) ) return NULL;
41 6 : if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)shmem, alignof(fd_tpu_reasm_t) ) ) ) return NULL;
42 6 : if( FD_UNLIKELY( !fd_tpu_reasm_footprint( depth, burst ) ) ) return NULL;
43 6 : if( FD_UNLIKELY( orig > FD_FRAG_META_ORIG_MAX ) ) return NULL;
44 :
45 6 : ulong req_data_sz = fd_tpu_reasm_req_data_sz( depth, burst );
46 6 : if( FD_UNLIKELY( fd_dcache_data_sz( dcache )<req_data_sz ) ) {
47 0 : FD_LOG_WARNING(( "dcache data_sz is too small (need %lu, have %lu)", req_data_sz, fd_dcache_data_sz( dcache ) ));
48 0 : return NULL;
49 0 : }
50 :
51 : /* Memory layout */
52 :
53 6 : ulong slot_cnt = depth+burst;
54 6 : if( FD_UNLIKELY( !slot_cnt ) ) return NULL;
55 6 : ulong chain_cnt = fd_tpu_reasm_map_chain_cnt_est( slot_cnt );
56 :
57 6 : FD_SCRATCH_ALLOC_INIT( l, shmem );
58 6 : fd_tpu_reasm_t * reasm = FD_SCRATCH_ALLOC_APPEND( l, fd_tpu_reasm_align(), sizeof(fd_tpu_reasm_t) );
59 6 : uint * pub_slots = FD_SCRATCH_ALLOC_APPEND( l, alignof(uint), depth*sizeof(uint) );
60 6 : fd_tpu_reasm_slot_t * slots = FD_SCRATCH_ALLOC_APPEND( l, alignof(fd_tpu_reasm_slot_t), slot_cnt*sizeof(fd_tpu_reasm_slot_t) );
61 6 : void * map_mem = FD_SCRATCH_ALLOC_APPEND( l, fd_tpu_reasm_map_align(), fd_tpu_reasm_map_footprint( chain_cnt ) );
62 6 : FD_SCRATCH_ALLOC_FINI( l, fd_tpu_reasm_align() );
63 :
64 6 : fd_memset( reasm, 0, sizeof(fd_tpu_reasm_t) );
65 6 : fd_memset( slots, 0, burst*sizeof(fd_tpu_reasm_slot_t) );
66 :
67 6 : fd_tpu_reasm_map_t * map = fd_tpu_reasm_map_join( fd_tpu_reasm_map_new( map_mem, chain_cnt, 0UL ) );
68 6 : if( FD_UNLIKELY( !map ) ) {
69 0 : FD_LOG_WARNING(( "fd_tpu_reasm_map_new failed" ));
70 0 : return NULL;
71 0 : }
72 :
73 : /* Initialize reasm object */
74 :
75 6 : reasm->slots_off = (ulong)( (uchar *)slots - (uchar *)reasm );
76 6 : reasm->pub_slots_off = (ulong)( (uchar *)pub_slots - (uchar *)reasm );
77 6 : reasm->map_off = (ulong)( (uchar *)map - (uchar *)reasm );
78 6 : reasm->dcache = dcache;
79 :
80 6 : reasm->depth = (uint)depth;
81 6 : reasm->burst = (uint)burst;
82 6 : reasm->head = (uint)slot_cnt-1U;
83 6 : reasm->tail = (uint)depth;
84 6 : reasm->slot_cnt = (uint)slot_cnt;
85 6 : reasm->orig = (ushort)orig;
86 :
87 : /* The initial state moves the first 'depth' slots to the mcache (PUB)
88 : and leaves the rest as FREE. */
89 :
90 774 : for( uint j=0U; j<depth; j++ ) {
91 768 : fd_tpu_reasm_slot_t * slot = slots + j;
92 768 : slot->k.state = FD_TPU_REASM_STATE_PUB;
93 768 : slot->k.conn_uid = ULONG_MAX;
94 768 : slot->k.stream_id = 0xffffffffffff;
95 768 : slot->k.sz = 0;
96 768 : slot->chain_next = UINT_MAX;
97 768 : pub_slots[ j ] = j;
98 768 : }
99 774 : for( uint j=(uint)depth; j<slot_cnt; j++ ) {
100 768 : fd_tpu_reasm_slot_t * slot = slots + j;
101 768 : slot->k.state = FD_TPU_REASM_STATE_FREE;
102 768 : slot->k.conn_uid = ULONG_MAX;
103 768 : slot->k.stream_id = 0xffffffffffff;
104 768 : slot->k.sz = 0;
105 768 : slot->lru_prev = fd_uint_if( j<slot_cnt-1U, j+1U, UINT_MAX );
106 768 : slot->lru_next = fd_uint_if( j>depth, j-1U, UINT_MAX );
107 768 : slot->chain_next = UINT_MAX;
108 768 : }
109 :
110 : /* Clear the entire hash map */
111 :
112 6 : uint * chains = fd_tpu_reasm_map_private_chain( map );
113 774 : for( uint j=0U; j<chain_cnt; j++ ) {
114 768 : chains[ j ] = UINT_MAX;
115 768 : }
116 :
117 6 : FD_COMPILER_MFENCE();
118 6 : reasm->magic = FD_TPU_REASM_MAGIC;
119 6 : FD_COMPILER_MFENCE();
120 :
121 6 : return reasm;
122 6 : }
123 :
124 : fd_tpu_reasm_t *
125 6 : fd_tpu_reasm_join( void * shreasm ) {
126 6 : fd_tpu_reasm_t * reasm = shreasm;
127 6 : if( FD_UNLIKELY( reasm->magic != FD_TPU_REASM_MAGIC ) ) {
128 0 : FD_LOG_WARNING(( "bad magic" ));
129 0 : return NULL;
130 0 : }
131 6 : return reasm;
132 6 : }
133 :
134 : void *
135 3 : fd_tpu_reasm_leave( fd_tpu_reasm_t * reasm ) {
136 3 : return reasm;
137 3 : }
138 :
139 : void *
140 3 : fd_tpu_reasm_delete( void * shreasm ) {
141 3 : fd_tpu_reasm_t * reasm = shreasm;
142 3 : if( FD_UNLIKELY( !reasm ) ) return NULL;
143 3 : reasm->magic = 0UL;
144 3 : return shreasm;
145 3 : }
146 :
147 : fd_tpu_reasm_slot_t *
148 : fd_tpu_reasm_query( fd_tpu_reasm_t * reasm,
149 : ulong conn_uid,
150 76509 : ulong stream_id ) {
151 76509 : return smap_query( reasm, conn_uid, stream_id );
152 76509 : }
153 :
154 : fd_tpu_reasm_slot_t *
155 : fd_tpu_reasm_prepare( fd_tpu_reasm_t * reasm,
156 : ulong conn_uid,
157 : ulong stream_id,
158 76125 : long tsorig ) {
159 76125 : fd_tpu_reasm_slot_t * slot = slotq_pop_tail( reasm );
160 76125 : smap_remove( reasm, slot );
161 76125 : slot_begin( slot );
162 76125 : slotq_push_head( reasm, slot );
163 76125 : slot->k.conn_uid = conn_uid;
164 76125 : slot->k.stream_id = stream_id & FD_TPU_REASM_SID_MASK;
165 76125 : smap_insert( reasm, slot );
166 76125 : slot->tsorig_comp = (uint)fd_frag_meta_ts_comp( tsorig );
167 76125 : return slot;
168 76125 : }
169 :
170 : int
171 : fd_tpu_reasm_frag( fd_tpu_reasm_t * reasm,
172 : fd_tpu_reasm_slot_t * slot,
173 : uchar const * data,
174 : ulong data_sz,
175 65841 : ulong data_off ) {
176 :
177 65841 : if( FD_UNLIKELY( slot->k.state != FD_TPU_REASM_STATE_BUSY ) )
178 0 : return FD_TPU_REASM_ERR_STATE;
179 :
180 65841 : ulong slot_idx = slot_get_idx( reasm, slot );
181 65841 : ulong sz0 = slot->k.sz;
182 :
183 65841 : if( FD_UNLIKELY( data_off>sz0 ) ) {
184 0 : return FD_TPU_REASM_ERR_SKIP;
185 0 : }
186 :
187 65841 : if( FD_UNLIKELY( data_off<sz0 ) ) {
188 : /* Fragment partially known ... should not happen */
189 0 : ulong skip = sz0 - data_off;
190 0 : if( skip>data_sz ) return FD_TPU_REASM_SUCCESS;
191 0 : data_off += skip;
192 0 : data_sz -= skip;
193 0 : data += skip;
194 0 : }
195 :
196 65841 : ulong sz1 = sz0 + data_sz;
197 65841 : if( FD_UNLIKELY( (sz1<sz0)|(sz1>FD_TPU_MTU) ) ) {
198 0 : fd_tpu_reasm_cancel( reasm, slot );
199 0 : return FD_TPU_REASM_ERR_SZ;
200 0 : }
201 :
202 65841 : fd_memcpy( reasm->dcache[ slot_idx ].payload + sz0, data, data_sz );
203 :
204 65841 : slot->k.sz = (ushort)( sz1 & FD_TPU_REASM_SZ_MASK );
205 65841 : return FD_TPU_REASM_SUCCESS;
206 65841 : }
207 :
208 : int
209 : fd_tpu_reasm_publish( fd_tpu_reasm_t * reasm,
210 : fd_tpu_reasm_slot_t * slot,
211 : fd_frag_meta_t * mcache,
212 : void * base, /* Assumed aligned FD_CHUNK_ALIGN */
213 : ulong seq,
214 : long tspub,
215 : uint source_ipv4,
216 65841 : uchar source_tpu ) {
217 :
218 65841 : ulong depth = reasm->depth;
219 :
220 65841 : if( FD_UNLIKELY( slot->k.state != FD_TPU_REASM_STATE_BUSY ) )
221 0 : return FD_TPU_REASM_ERR_STATE;
222 :
223 : /* Derive chunk index */
224 65841 : uint slot_idx = slot_get_idx( reasm, slot );
225 65841 : fd_tpu_msg_t * buf = &reasm->dcache[ slot_idx ];
226 65841 : ulong chunk = fd_laddr_to_chunk( base, buf );
227 65841 : if( FD_UNLIKELY( ( (ulong)buf<(ulong)base ) |
228 65841 : ( chunk>UINT_MAX ) ) ) {
229 0 : FD_LOG_CRIT(( "invalid base %p for slot %p in tpu_reasm %p",
230 0 : base, (void *)slot, (void *)reasm ));
231 0 : }
232 :
233 : /* Find least recently published slot. This is our "freed slot".
234 : (Every time a new slot is published, another slot is simultaneously
235 : freed) */
236 65841 : uint * pub_slot = fd_tpu_reasm_pub_slots_laddr( reasm ) + fd_mcache_line_idx( seq, depth );
237 65841 : uint freed_slot_idx = *pub_slot;
238 65841 : FD_CHECK_CRIT( freed_slot_idx < reasm->slot_cnt, "corruption detected" );
239 :
240 : /* Publish to mcache */
241 65841 : ulong sz = slot->k.sz;
242 65841 : ulong ctl = fd_frag_meta_ctl( reasm->orig, 1, 1, 0 );
243 65841 : ulong tsorig_comp = slot->tsorig_comp;
244 65841 : ulong tspub_comp = fd_frag_meta_ts_comp( tspub );
245 :
246 65841 : fd_txn_m_t * txnm = &buf->hdr;
247 65841 : *txnm = (fd_txn_m_t){0};
248 65841 : txnm->payload_sz = (ushort)sz;
249 65841 : txnm->source_ipv4 = source_ipv4;
250 65841 : txnm->source_tpu = source_tpu;
251 :
252 65841 : # if FD_HAS_AVX
253 65841 : fd_mcache_publish_avx( mcache, depth, seq, 0UL, chunk, fd_txn_m_realized_footprint( txnm, 0, 0 ), ctl, tsorig_comp, tspub_comp );
254 : # elif FD_HAS_SSE
255 : fd_mcache_publish_sse( mcache, depth, seq, 0UL, chunk, fd_txn_m_realized_footprint( txnm, 0, 0 ), ctl, tsorig_comp, tspub_comp );
256 : # else
257 : fd_mcache_publish ( mcache, depth, seq, 0UL, chunk, fd_txn_m_realized_footprint( txnm, 0, 0 ), ctl, tsorig_comp, tspub_comp );
258 : # endif
259 :
260 : /* Mark new slot as published */
261 65841 : slotq_remove( reasm, slot );
262 65841 : slot->k.state = FD_TPU_REASM_STATE_PUB;
263 65841 : *pub_slot = slot_idx;
264 :
265 : /* Free oldest published slot */
266 65841 : fd_tpu_reasm_slot_t * free_slot = fd_tpu_reasm_slots_laddr( reasm ) + freed_slot_idx;
267 65841 : uint free_slot_state = free_slot->k.state;
268 65841 : FD_CHECK_CRIT( free_slot_state == FD_TPU_REASM_STATE_PUB, "corruption detected" );
269 65841 : free_slot->k.state = FD_TPU_REASM_STATE_FREE;
270 65841 : slotq_push_tail( reasm, free_slot );
271 :
272 65841 : return FD_TPU_REASM_SUCCESS;
273 65841 : }
274 :
275 : void
276 : fd_tpu_reasm_cancel( fd_tpu_reasm_t * reasm,
277 9348 : fd_tpu_reasm_slot_t * slot ) {
278 9348 : if( FD_UNLIKELY( slot->k.state != FD_TPU_REASM_STATE_BUSY ) ) return;
279 9348 : slotq_remove( reasm, slot );
280 9348 : smap_remove( reasm, slot );
281 9348 : slot->k.state = FD_TPU_REASM_STATE_FREE;
282 9348 : slot->k.conn_uid = ULONG_MAX;
283 9348 : slot->k.stream_id = 0UL;
284 9348 : slotq_push_tail( reasm, slot );
285 9348 : }
286 :
287 : int
288 : fd_tpu_reasm_publish_fast( fd_tpu_reasm_t * reasm,
289 : uchar const * data,
290 : ulong sz,
291 : fd_frag_meta_t * mcache,
292 : void * base, /* Assumed aligned FD_CHUNK_ALIGN */
293 : ulong seq,
294 : long tspub,
295 : uint source_ipv4,
296 0 : uchar source_tpu ) {
297 :
298 0 : ulong depth = reasm->depth;
299 0 : if( FD_UNLIKELY( sz>FD_TPU_MTU ) ) return FD_TPU_REASM_ERR_SZ;
300 :
301 : /* Acquire least recent slot. This is our "new slot" */
302 0 : fd_tpu_reasm_slot_t * slot = slotq_pop_tail( reasm );
303 0 : smap_remove( reasm, slot );
304 0 : slot_begin( slot );
305 :
306 : /* Derive buffer address of new slot */
307 0 : uint slot_idx = slot_get_idx( reasm, slot );
308 0 : fd_tpu_msg_t * buf = &reasm->dcache[ slot_idx ];
309 0 : ulong chunk = fd_laddr_to_chunk( base, buf );
310 0 : if( FD_UNLIKELY( ( (ulong)buf<(ulong)base ) |
311 0 : ( chunk>UINT_MAX ) ) ) {
312 0 : FD_LOG_ERR(( "Computed invalid chunk index (base=%p buf=%p chunk=%lx)",
313 0 : base, (void *)buf, chunk ));
314 0 : }
315 :
316 : /* Find least recently published slot. This is our "freed slot".
317 : (Every time a new slot is published, another slot is simultaneously
318 : freed) */
319 0 : uint * pub_slot = fd_tpu_reasm_pub_slots_laddr( reasm ) + fd_mcache_line_idx( seq, depth );
320 0 : uint freed_slot_idx = *pub_slot;
321 0 : FD_CHECK_CRIT( freed_slot_idx < reasm->slot_cnt, "corruption detected" );
322 :
323 : /* Copy data into new slot */
324 0 : FD_COMPILER_MFENCE();
325 0 : slot->k.sz = sz & FD_TPU_REASM_SZ_MASK;
326 0 : fd_txn_m_t * txnm = &buf->hdr;
327 0 : *txnm = (fd_txn_m_t){0};
328 0 : txnm->payload_sz = (ushort)slot->k.sz,
329 0 : txnm->source_ipv4 = source_ipv4;
330 0 : txnm->source_tpu = source_tpu;
331 0 : fd_memcpy( buf->payload, data, sz );
332 0 : FD_COMPILER_MFENCE();
333 0 : slot->k.state = FD_TPU_REASM_STATE_PUB;
334 0 : FD_COMPILER_MFENCE();
335 :
336 : /* Publish new slot, while simultaneously removing all references to
337 : the old slot */
338 0 : *pub_slot = slot_idx;
339 0 : ulong ctl = fd_frag_meta_ctl( reasm->orig, 1, 1, 0 );
340 0 : uint tsorig_comp = slot->tsorig_comp;
341 0 : uint tspub_comp = (uint)fd_frag_meta_ts_comp( tspub );
342 0 : # if FD_HAS_AVX
343 0 : fd_mcache_publish_avx( mcache, depth, seq, 0UL, chunk, fd_txn_m_realized_footprint( txnm, 0, 0 ), ctl, tsorig_comp, tspub_comp );
344 : # elif FD_HAS_SSE
345 : fd_mcache_publish_sse( mcache, depth, seq, 0UL, chunk, fd_txn_m_realized_footprint( txnm, 0, 0 ), ctl, tsorig_comp, tspub_comp );
346 : # else
347 : fd_mcache_publish ( mcache, depth, seq, 0UL, chunk, fd_txn_m_realized_footprint( txnm, 0, 0 ), ctl, tsorig_comp, tspub_comp );
348 : # endif
349 :
350 : /* Free old slot */
351 0 : fd_tpu_reasm_slot_t * free_slot = fd_tpu_reasm_slots_laddr( reasm ) + freed_slot_idx;
352 0 : uint free_slot_state = free_slot->k.state;
353 0 : FD_CHECK_CRIT( free_slot_state == FD_TPU_REASM_STATE_PUB, "corruption detected" );
354 0 : free_slot->k.state = FD_TPU_REASM_STATE_FREE;
355 0 : slotq_push_tail( reasm, free_slot );
356 0 : return FD_TPU_REASM_SUCCESS;
357 0 : }
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