diff options
author | Florin Coras <fcoras@cisco.com> | 2019-04-09 18:29:14 -0700 |
---|---|---|
committer | Damjan Marion <dmarion@me.com> | 2019-04-18 13:16:18 +0000 |
commit | 0a846806742922d98f1aff9cf1370715e57a2ae5 (patch) | |
tree | 5214807e20731453254635ed2d9afa9649eb4469 | |
parent | 5a8844bdbf4b055812cce2d7755a175b2cc90b75 (diff) |
svm: allow indirect fifo data chunks
Fifos can use multiple memory chunks for simple read/write operations.
Adding/removing chunks after assignment not yet supported.
Change-Id: I2aceab6aea78059d74e0d3a9993c40d5196d077b
Signed-off-by: Florin Coras <fcoras@cisco.com>
-rw-r--r-- | src/plugins/unittest/session_test.c | 2 | ||||
-rw-r--r-- | src/plugins/unittest/tcp_test.c | 6 | ||||
-rw-r--r-- | src/svm/svm_fifo.c | 258 | ||||
-rw-r--r-- | src/svm/svm_fifo.h | 25 | ||||
-rw-r--r-- | src/svm/svm_fifo_segment.c | 49 | ||||
-rw-r--r-- | src/vnet/session/application_worker.c | 1 |
6 files changed, 171 insertions, 170 deletions
diff --git a/src/plugins/unittest/session_test.c b/src/plugins/unittest/session_test.c index fa6a99ffbf0..542be604e5b 100644 --- a/src/plugins/unittest/session_test.c +++ b/src/plugins/unittest/session_test.c @@ -1817,7 +1817,7 @@ session_test_mq (vlib_main_t * vm, unformat_input_t * input) s.rx_fifo = rx_fifo; s.tx_fifo = tx_fifo; s.session_state = SESSION_STATE_READY; - counter = (u64 *) rx_fifo->data; + counter = (u64 *) rx_fifo->head_chunk->data; start = vlib_time_now (vm); pid = fork (); diff --git a/src/plugins/unittest/tcp_test.c b/src/plugins/unittest/tcp_test.c index c8d9d5fe247..f7bcad3e67e 100644 --- a/src/plugins/unittest/tcp_test.c +++ b/src/plugins/unittest/tcp_test.c @@ -740,7 +740,7 @@ fifo_prepare (u32 fifo_size) f = svm_fifo_create (fifo_size); /* Paint fifo data vector with -1's */ - clib_memset (f->data, 0xFF, fifo_size); + clib_memset (f->head_chunk->data, 0xFF, fifo_size); return f; } @@ -1375,14 +1375,14 @@ tcp_test_fifo4 (vlib_main_t * vm, unformat_input_t * input) static u32 fifo_pos (svm_fifo_t * f, u32 pos) { - return pos % f->nitems; + return pos; } static int tcp_test_fifo5 (vlib_main_t * vm, unformat_input_t * input) { svm_fifo_t *f; - u32 fifo_size = 400, j = 0, offset = 200; + u32 fifo_size = 401, j = 0, offset = 200; int i, rv, verbose = 0; u8 *test_data = 0, *data_buf = 0; ooo_segment_t *ooo_seg; diff --git a/src/svm/svm_fifo.c b/src/svm/svm_fifo.c index 918ad77956e..de1997452d5 100644 --- a/src/svm/svm_fifo.c +++ b/src/svm/svm_fifo.c @@ -113,8 +113,7 @@ svm_fifo_replay (u8 * s, svm_fifo_t * f, u8 no_read, u8 verbose) #endif dummy_fifo = svm_fifo_create (f->size); - clib_memset (f->data, 0xFF, f->nitems); - + clib_memset (f->head_chunk->data, 0xFF, f->nitems); vec_validate (data, f->nitems); for (i = 0; i < vec_len (data); i++) data[i] = i; @@ -204,6 +203,26 @@ format_svm_fifo (u8 * s, va_list * args) return s; } +void +svm_fifo_init (svm_fifo_t * f, u32 size) +{ + f->size = size; + /* + * usable size of the fifo set to rounded_data_size - 1 + * to differentiate between free fifo and empty fifo. + */ + f->nitems = f->size - 1; + f->ooos_list_head = OOO_SEGMENT_INVALID_INDEX; + f->ct_session_index = SVM_FIFO_INVALID_SESSION_INDEX; + f->segment_index = SVM_FIFO_INVALID_INDEX; + f->refcnt = 1; + f->head_chunk = &f->default_chunk; + f->tail_chunk = &f->default_chunk; + f->default_chunk.next = &f->default_chunk; + f->default_chunk.start_byte = 0; + f->default_chunk.length = f->size; +} + /** create an svm fifo, in the current heap. Fails vs blow up the process */ svm_fifo_t * svm_fifo_create (u32 data_size_in_bytes) @@ -219,17 +238,8 @@ svm_fifo_create (u32 data_size_in_bytes) return 0; clib_memset (f, 0, sizeof (*f)); - f->size = rounded_data_size; - /* - * usable size of the fifo set to rounded_data_size - 1 - * to differentiate between free fifo and empty fifo. - */ - f->nitems = f->size - 1; - f->ooos_list_head = OOO_SEGMENT_INVALID_INDEX; - f->ct_session_index = SVM_FIFO_INVALID_SESSION_INDEX; - f->segment_index = SVM_FIFO_INVALID_INDEX; - f->refcnt = 1; - return (f); + svm_fifo_init (f, data_size_in_bytes); + return f; } void @@ -296,7 +306,9 @@ ooo_segment_add (svm_fifo_t * f, u32 offset, u32 head, u32 tail, u32 length) u32 new_index, s_end_pos, s_index; u32 offset_pos, offset_end_pos; - ASSERT (offset + length <= ooo_segment_distance_from_tail (f, head, tail)); + ASSERT (offset + length <= ooo_segment_distance_from_tail (f, head, tail) + || head == tail); + offset_pos = tail + offset; offset_end_pos = tail + offset + length; @@ -469,11 +481,11 @@ ooo_segment_try_collect (svm_fifo_t * f, u32 n_bytes_enqueued, u32 * tail) return bytes; } -CLIB_MARCH_FN (svm_fifo_enqueue_nowait, int, svm_fifo_t * f, u32 max_bytes, - const u8 * copy_from_here) +CLIB_MARCH_FN (svm_fifo_enqueue_nowait, int, svm_fifo_t * f, u32 len, + const u8 * src) { - u32 total_copy_bytes, first_copy_bytes, second_copy_bytes; - u32 tail, head, free_count, tail_idx; + u32 n_chunk, to_copy, tail, head, free_count, tail_idx; + svm_fifo_chunk_t *c; f_load_head_tail_prod (f, &head, &tail); @@ -486,50 +498,43 @@ CLIB_MARCH_FN (svm_fifo_enqueue_nowait, int, svm_fifo_t * f, u32 max_bytes, return SVM_FIFO_FULL; /* number of bytes we're going to copy */ - total_copy_bytes = free_count < max_bytes ? free_count : max_bytes; + to_copy = len = clib_min (free_count, len); + c = f->tail_chunk; tail_idx = tail % f->size; + ASSERT (tail_idx >= c->start_byte); + tail_idx -= c->start_byte; + n_chunk = c->length - tail_idx; - if (PREDICT_TRUE (copy_from_here != 0)) + if (n_chunk < to_copy) { - first_copy_bytes = f->size - tail_idx; - if (first_copy_bytes < total_copy_bytes) - { - clib_memcpy_fast (&f->data[tail_idx], copy_from_here, - first_copy_bytes); - /* number of bytes in second copy segment */ - second_copy_bytes = total_copy_bytes - first_copy_bytes; - /* wrap around */ - clib_memcpy_fast (&f->data[0], - copy_from_here + first_copy_bytes, - second_copy_bytes); - } - else + clib_memcpy_fast (&c->data[tail_idx], src, n_chunk); + while ((to_copy -= n_chunk)) { - clib_memcpy_fast (&f->data[tail_idx], copy_from_here, - total_copy_bytes); + c = c->next; + n_chunk = clib_min (c->length, to_copy); + clib_memcpy_fast (&c->data[0], src + (len - to_copy), n_chunk); } - tail += total_copy_bytes; + f->tail_chunk = c; } else { - ASSERT (0); - /* Account for a zero-copy enqueue done elsewhere */ - tail += max_bytes; + clib_memcpy_fast (&c->data[tail_idx], src, to_copy); } + tail += len; - svm_fifo_trace_add (f, head, total_copy_bytes, 2); + svm_fifo_trace_add (f, head, n_total, 2); /* collect out-of-order segments */ if (PREDICT_FALSE (f->ooos_list_head != OOO_SEGMENT_INVALID_INDEX)) - total_copy_bytes += ooo_segment_try_collect (f, total_copy_bytes, &tail); + len += ooo_segment_try_collect (f, len, &tail); - ASSERT (total_copy_bytes <= free_count); + ASSERT (len <= free_count); /* store-rel: producer owned index (paired with load-acq in consumer) */ clib_atomic_store_rel_n (&f->tail, tail); - return total_copy_bytes; + return len; } #ifndef CLIB_MARCH_VARIANT @@ -550,11 +555,10 @@ svm_fifo_enqueue_nowait (svm_fifo_t * f, u32 max_bytes, * Returns -1 if none of the segment was copied due to lack of space */ CLIB_MARCH_FN (svm_fifo_enqueue_with_offset, int, svm_fifo_t * f, - u32 offset, u32 required_bytes, u8 * copy_from_here) + u32 offset, u32 len, u8 * src) { - u32 total_copy_bytes, first_copy_bytes, second_copy_bytes; - u32 tail_offset; - u32 tail, head, free_count, tail_offset_idx; + u32 to_copy, n_chunk, tail, head, free_count, tail_offset_idx; + svm_fifo_chunk_t *c; f_load_head_tail_prod (f, &head, &tail); @@ -562,41 +566,35 @@ CLIB_MARCH_FN (svm_fifo_enqueue_with_offset, int, svm_fifo_t * f, free_count = f_free_count (f, head, tail); /* will this request fit? */ - if ((required_bytes + offset) > free_count) + if ((len + offset) > free_count) return -1; f->ooos_newest = OOO_SEGMENT_INVALID_INDEX; - ASSERT (required_bytes < f->nitems); + ASSERT (len < f->nitems); + svm_fifo_trace_add (f, offset, len, 1); - tail_offset = tail + offset; - tail_offset_idx = tail_offset % f->size; + ooo_segment_add (f, offset, head, tail, len); - svm_fifo_trace_add (f, offset, required_bytes, 1); + c = f->tail_chunk; + tail_offset_idx = (tail + offset) % f->size; + tail_offset_idx -= c->start_byte; + n_chunk = c->length - tail_offset_idx; + to_copy = len; - ooo_segment_add (f, offset, head, tail, required_bytes); - - /* number of bytes we're going to copy */ - total_copy_bytes = required_bytes; - - /* number of bytes in first copy segment */ - first_copy_bytes = f->size - tail_offset_idx; - - if (first_copy_bytes < total_copy_bytes) + if (n_chunk < to_copy) { - clib_memcpy_fast (&f->data[tail_offset_idx], copy_from_here, - first_copy_bytes); - - /* number of bytes in second copy segment */ - second_copy_bytes = total_copy_bytes - first_copy_bytes; - /* wrap around */ - clib_memcpy_fast (&f->data[0], - copy_from_here + first_copy_bytes, second_copy_bytes); + clib_memcpy_fast (&c->data[tail_offset_idx], src, n_chunk); + while ((to_copy -= n_chunk)) + { + c = c->next; + n_chunk = clib_min (c->length, to_copy); + clib_memcpy_fast (&c->data[0], src + (len - to_copy), n_chunk); + } } else { - clib_memcpy_fast (&f->data[tail_offset_idx], copy_from_here, - total_copy_bytes); + clib_memcpy_fast (&c->data[tail_offset_idx], src, len); } return 0; @@ -616,28 +614,32 @@ svm_fifo_enqueue_with_offset (svm_fifo_t * f, u32 offset, u32 required_bytes, void svm_fifo_overwrite_head (svm_fifo_t * f, u8 * data, u32 len) { - u32 first_chunk; + u32 n_chunk; u32 head, tail, head_idx; + svm_fifo_chunk_t *c; + + ASSERT (len <= f->nitems); f_load_head_tail_cons (f, &head, &tail); + c = f->head_chunk; head_idx = head % f->size; - first_chunk = f->size - (head_idx); - ASSERT (len <= f->nitems); - if (len <= first_chunk) - clib_memcpy_fast (&f->data[head_idx], data, len); + head_idx -= c->start_byte; + n_chunk = c->length - head_idx; + if (len <= n_chunk) + clib_memcpy_fast (&c->data[head_idx], data, len); else { - clib_memcpy_fast (&f->data[head_idx], data, first_chunk); - clib_memcpy_fast (&f->data[0], data + first_chunk, len - first_chunk); + clib_memcpy_fast (&c->data[head_idx], data, n_chunk); + clib_memcpy_fast (&c->next->data[0], data + n_chunk, len - n_chunk); } } #endif -CLIB_MARCH_FN (svm_fifo_dequeue_nowait, int, svm_fifo_t * f, u32 max_bytes, - u8 * copy_here) +CLIB_MARCH_FN (svm_fifo_dequeue_nowait, int, svm_fifo_t * f, u32 len, + u8 * dst) { - u32 total_copy_bytes, first_copy_bytes, second_copy_bytes; - u32 tail, head, cursize, head_idx; + u32 to_copy, n_chunk, tail, head, cursize, head_idx; + svm_fifo_chunk_t *c; f_load_head_tail_cons (f, &head, &tail); @@ -647,42 +649,35 @@ CLIB_MARCH_FN (svm_fifo_dequeue_nowait, int, svm_fifo_t * f, u32 max_bytes, if (PREDICT_FALSE (cursize == 0)) return -2; /* nothing in the fifo */ - /* number of bytes we're going to copy */ - total_copy_bytes = (cursize < max_bytes) ? cursize : max_bytes; + to_copy = len = clib_min (cursize, len); + c = f->head_chunk; head_idx = head % f->size; + head_idx -= c->start_byte; + n_chunk = c->length - head_idx; - if (PREDICT_TRUE (copy_here != 0)) + if (n_chunk < to_copy) { - /* number of bytes in first copy segment */ - first_copy_bytes = f->size - head_idx; - if (first_copy_bytes < total_copy_bytes) + clib_memcpy_fast (dst, &c->data[head_idx], n_chunk); + while ((to_copy -= n_chunk)) { - clib_memcpy_fast (copy_here, &f->data[head_idx], first_copy_bytes); - /* number of bytes in second copy segment */ - second_copy_bytes = total_copy_bytes - first_copy_bytes; - /* wrap around */ - clib_memcpy_fast (copy_here + first_copy_bytes, - &f->data[0], second_copy_bytes); + c = c->next; + n_chunk = clib_min (c->length, to_copy); + clib_memcpy_fast (dst + (len - to_copy), &c->data[0], n_chunk); } - else - { - clib_memcpy_fast (copy_here, &f->data[head_idx], total_copy_bytes); - } - head += total_copy_bytes; + f->head_chunk = c; } else { - ASSERT (0); - /* Account for a zero-copy dequeue done elsewhere */ - head += max_bytes; + clib_memcpy_fast (dst, &c->data[head_idx], to_copy); } + head += len; - ASSERT (cursize >= total_copy_bytes); + ASSERT (cursize >= to_copy); /* store-rel: consumer owned index (paired with load-acq in producer) */ clib_atomic_store_rel_n (&f->head, head); - return total_copy_bytes; + return len; } #ifndef CLIB_MARCH_VARIANT @@ -696,11 +691,10 @@ svm_fifo_dequeue_nowait (svm_fifo_t * f, u32 max_bytes, u8 * copy_here) #endif CLIB_MARCH_FN (svm_fifo_peek, int, svm_fifo_t * f, u32 relative_offset, - u32 max_bytes, u8 * copy_here) + u32 len, u8 * dst) { - u32 total_copy_bytes, first_copy_bytes, second_copy_bytes; - u32 tail, head, cursize; - u32 relative_head_idx; + u32 to_copy, n_chunk, tail, head, cursize, head_idx; + svm_fifo_chunk_t *c; f_load_head_tail_cons (f, &head, &tail); @@ -710,33 +704,29 @@ CLIB_MARCH_FN (svm_fifo_peek, int, svm_fifo_t * f, u32 relative_offset, if (PREDICT_FALSE (cursize < relative_offset)) return -2; /* nothing in the fifo */ - relative_head_idx = (head + relative_offset) % f->size; + to_copy = len = clib_min (cursize - relative_offset, len); - /* number of bytes we're going to copy */ - total_copy_bytes = ((cursize - relative_offset) < max_bytes) ? - cursize - relative_offset : max_bytes; + c = f->head_chunk; + head_idx = (head + relative_offset) % f->size; + head_idx -= c->start_byte; + n_chunk = c->length - head_idx; - if (PREDICT_TRUE (copy_here != 0)) + if (n_chunk < to_copy) { - /* number of bytes in first copy segment */ - first_copy_bytes = f->size - relative_head_idx; - if (first_copy_bytes < total_copy_bytes) - { - clib_memcpy_fast (copy_here, &f->data[relative_head_idx], - first_copy_bytes); - - /* number of bytes in second copy segment */ - second_copy_bytes = total_copy_bytes - first_copy_bytes; - clib_memcpy_fast (copy_here + first_copy_bytes, &f->data[0], - second_copy_bytes); - } - else + clib_memcpy_fast (dst, &c->data[head_idx], n_chunk); + while ((to_copy -= n_chunk)) { - clib_memcpy_fast (copy_here, &f->data[relative_head_idx], - total_copy_bytes); + c = c->next; + n_chunk = clib_min (c->length, to_copy); + clib_memcpy_fast (dst + (len - to_copy), &c->data[0], n_chunk); } + f->head_chunk = c; + } + else + { + clib_memcpy_fast (dst, &c->data[head_idx], to_copy); } - return total_copy_bytes; + return len; } #ifndef CLIB_MARCH_VARIANT @@ -805,14 +795,14 @@ svm_fifo_segments (svm_fifo_t * f, svm_fifo_segment_t * fs) if (tail < head) { fs[0].len = f->size - head_idx; - fs[0].data = f->data + head_idx; + fs[0].data = f->head_chunk->data + head_idx; fs[1].len = cursize - fs[0].len; - fs[1].data = f->data; + fs[1].data = f->head_chunk->data; } else { fs[0].len = cursize; - fs[0].data = f->data + head_idx; + fs[0].data = f->head_chunk->data + head_idx; fs[1].len = 0; fs[1].data = 0; } @@ -828,7 +818,7 @@ svm_fifo_segments_free (svm_fifo_t * f, svm_fifo_segment_t * fs) head = f->head; head_idx = head % f->size; - ASSERT (fs[0].data == f->data + head_idx); + ASSERT (fs[0].data == f->head_chunk->data + head_idx); head += fs[0].len + fs[1].len; /* store-rel: consumer owned index (paired with load-acq in producer) */ clib_atomic_store_rel_n (&f->head, head); @@ -839,7 +829,7 @@ void svm_fifo_clone (svm_fifo_t * df, svm_fifo_t * sf) { u32 head, tail; - clib_memcpy_fast (df->data, sf->data, sf->size); + clib_memcpy_fast (df->head_chunk->data, sf->head_chunk->data, sf->size); f_load_head_tail_all_acq (sf, &head, &tail); clib_atomic_store_rel_n (&df->head, head); diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h index 94a05938d26..f311576f5af 100644 --- a/src/svm/svm_fifo.h +++ b/src/svm/svm_fifo.h @@ -60,11 +60,21 @@ typedef struct u32 action; } svm_fifo_trace_elem_t; +typedef struct svm_fifo_chunk_ +{ + u32 start_byte; + u32 length; + struct svm_fifo_chunk_ *next; + u8 data[0]; +} svm_fifo_chunk_t; + typedef struct _svm_fifo { CLIB_CACHE_LINE_ALIGN_MARK (shared_first); - u32 size; /**< size of the fifo(must be power of 2) */ + u32 size; /**< size of the fifo */ u32 nitems; /**< usable size(size-1) */ + struct _svm_fifo *next; /**< next in freelist/active chain */ + struct _svm_fifo *prev; /**< prev in active chain */ CLIB_CACHE_LINE_ALIGN_MARK (shared_second); volatile u32 has_event; /**< non-zero if deq event exists */ @@ -81,17 +91,17 @@ typedef struct _svm_fifo CLIB_CACHE_LINE_ALIGN_MARK (consumer); u32 head; + svm_fifo_chunk_t *head_chunk; volatile u32 want_tx_ntf; /**< producer wants nudge */ volatile u32 has_tx_ntf; CLIB_CACHE_LINE_ALIGN_MARK (producer); u32 tail; + svm_fifo_chunk_t *tail_chunk; ooo_segment_t *ooo_segments; /**< Pool of ooo segments */ u32 ooos_list_head; /**< Head of out-of-order linked-list */ u32 ooos_newest; /**< Last segment to have been updated */ - struct _svm_fifo *next; /**< next in freelist/active chain */ - struct _svm_fifo *prev; /**< prev in active chain */ volatile u8 n_subscribers; u8 subscribers[SVM_FIFO_MAX_EVT_SUBSCRIBERS]; @@ -99,7 +109,7 @@ typedef struct _svm_fifo svm_fifo_trace_elem_t *trace; #endif - CLIB_CACHE_LINE_ALIGN_MARK (data); + svm_fifo_chunk_t default_chunk; } svm_fifo_t; typedef enum @@ -305,6 +315,7 @@ svm_fifo_unset_event (svm_fifo_t * f) } svm_fifo_t *svm_fifo_create (u32 data_size_in_bytes); +void svm_fifo_init (svm_fifo_t * f, u32 size); void svm_fifo_free (svm_fifo_t * f); int svm_fifo_enqueue_nowait (svm_fifo_t * f, u32 max_bytes, @@ -373,14 +384,16 @@ always_inline u8 * svm_fifo_head (svm_fifo_t * f) { /* load-relaxed: consumer owned index */ - return (f->data + (f->head % f->size)); + return (f->head_chunk->data + + ((f->head % f->size) - f->head_chunk->start_byte)); } always_inline u8 * svm_fifo_tail (svm_fifo_t * f) { /* load-relaxed: producer owned index */ - return (f->data + (f->tail % f->size)); + return (f->tail_chunk->data + + ((f->tail % f->size) - f->tail_chunk->start_byte)); } static inline void diff --git a/src/svm/svm_fifo_segment.c b/src/svm/svm_fifo_segment.c index 94bf6a5e73e..90bf593f74c 100644 --- a/src/svm/svm_fifo_segment.c +++ b/src/svm/svm_fifo_segment.c @@ -16,6 +16,23 @@ #include <svm/svm_fifo_segment.h> static void +fifo_init_for_segment (svm_fifo_segment_header_t * fsh, u8 * fifo_space, + u32 size, u32 freelist_index) +{ + svm_fifo_t *f; + + f = (svm_fifo_t *) fifo_space; + f->freelist_index = freelist_index; + f->default_chunk.next = &f->default_chunk; + f->default_chunk.start_byte = 0; + f->default_chunk.length = size; + f->head_chunk = &f->default_chunk; + f->tail_chunk = &f->default_chunk; + f->next = fsh->free_fifos[freelist_index]; + fsh->free_fifos[freelist_index] = f; +} + +static void allocate_new_fifo_chunk (svm_fifo_segment_header_t * fsh, u32 data_size_in_bytes, int chunk_size) { @@ -43,14 +60,11 @@ allocate_new_fifo_chunk (svm_fifo_segment_header_t * fsh, return; /* Carve fifo space */ - f = (svm_fifo_t *) fifo_space; for (i = 0; i < chunk_size; i++) { - f->freelist_index = freelist_index; - f->next = fsh->free_fifos[freelist_index]; - fsh->free_fifos[freelist_index] = f; + fifo_init_for_segment (fsh, fifo_space, rounded_data_size, + freelist_index); fifo_space += sizeof (*f) + rounded_data_size; - f = (svm_fifo_t *) fifo_space; } } @@ -149,24 +163,18 @@ svm_fifo_segment_preallocate_fifo_pairs (svm_fifo_segment_private_t * s, } /* Carve rx fifo space */ - f = (svm_fifo_t *) rx_fifo_space; for (i = 0; i < pairs_to_allocate; i++) { - f->freelist_index = rx_freelist_index; - f->next = fsh->free_fifos[rx_freelist_index]; - fsh->free_fifos[rx_freelist_index] = f; + fifo_init_for_segment (fsh, rx_fifo_space, rx_rounded_data_size, + rx_freelist_index); rx_fifo_space += sizeof (*f) + rx_rounded_data_size; - f = (svm_fifo_t *) rx_fifo_space; } /* Carve tx fifo space */ - f = (svm_fifo_t *) tx_fifo_space; for (i = 0; i < pairs_to_allocate; i++) { - f->freelist_index = tx_freelist_index; - f->next = fsh->free_fifos[tx_freelist_index]; - fsh->free_fifos[tx_freelist_index] = f; + fifo_init_for_segment (fsh, tx_fifo_space, tx_rounded_data_size, + tx_freelist_index); tx_fifo_space += sizeof (*f) + tx_rounded_data_size; - f = (svm_fifo_t *) tx_fifo_space; } /* Account for the pairs allocated */ @@ -381,16 +389,7 @@ svm_fifo_segment_alloc_fifo (svm_fifo_segment_private_t * fs, fsh->free_fifos[freelist_index] = f->next; /* (re)initialize the fifo, as in svm_fifo_create */ clib_memset (f, 0, sizeof (*f)); - f->size = (1 << (max_log2 (data_size_in_bytes))); - /* - * usable size of the fifo set to rounded_data_size - 1 - * to differentiate between free fifo and empty fifo. - */ - f->nitems = f->size - 1; - f->ooos_list_head = OOO_SEGMENT_INVALID_INDEX; - f->ct_session_index = SVM_FIFO_INVALID_SESSION_INDEX; - f->refcnt = 1; - f->freelist_index = freelist_index; + svm_fifo_init (f, data_size_in_bytes); goto found; } break; diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c index dd1088e2cbb..1dae5a55a45 100644 --- a/src/vnet/session/application_worker.c +++ b/src/vnet/session/application_worker.c @@ -375,7 +375,6 @@ app_worker_own_session (app_worker_t * app_wrk, session_t * s) if (!svm_fifo_is_empty_cons (txf)) svm_fifo_clone (s->tx_fifo, txf); - segment_manager_dealloc_fifos (rxf, txf); return 0; |