From 88001c64e9e5d0dc08e303857ca34687454ebf10 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Wed, 24 Apr 2019 14:44:46 -0700 Subject: session: cleanup segment manager and fifo segment Change-Id: I984f347fb465c0c405cef668d8690457e81788e2 Signed-off-by: Florin Coras --- src/plugins/unittest/svm_fifo_test.c | 146 +++---- src/svm/CMakeLists.txt | 12 +- src/svm/fifo_segment.c | 639 +++++++++++++++++++++++++++++ src/svm/fifo_segment.h | 139 +++++++ src/svm/svm_fifo.c | 4 +- src/svm/svm_fifo.h | 9 +- src/svm/svm_fifo_segment.c | 668 ------------------------------- src/svm/svm_fifo_segment.h | 136 ------- src/tests/vnet/session/quic_echo.c | 20 +- src/tests/vnet/session/tcp_echo.c | 20 +- src/tests/vnet/session/udp_echo.c | 34 +- src/vcl/vcl_bapi.c | 12 +- src/vcl/vcl_private.h | 2 +- src/vcl/vppcom.c | 10 +- src/vnet/session-apps/echo_client.h | 1 - src/vnet/session-apps/proxy.h | 1 - src/vnet/session/application.c | 16 +- src/vnet/session/application.h | 8 +- src/vnet/session/application_interface.h | 2 +- src/vnet/session/application_local.c | 6 +- src/vnet/session/application_worker.c | 55 +-- src/vnet/session/segment_manager.c | 547 ++++++++++++++----------- src/vnet/session/segment_manager.h | 145 +++---- src/vnet/session/session_api.c | 2 +- 24 files changed, 1315 insertions(+), 1319 deletions(-) create mode 100644 src/svm/fifo_segment.c create mode 100644 src/svm/fifo_segment.h delete mode 100644 src/svm/svm_fifo_segment.c delete mode 100644 src/svm/svm_fifo_segment.h (limited to 'src') diff --git a/src/plugins/unittest/svm_fifo_test.c b/src/plugins/unittest/svm_fifo_test.c index af806e4782f..163a8e42c68 100644 --- a/src/plugins/unittest/svm_fifo_test.c +++ b/src/plugins/unittest/svm_fifo_test.c @@ -13,8 +13,8 @@ * limitations under the License. */ #include -#include #include +#include #define SFIFO_TEST_I(_cond, _comment, _args...) \ ({ \ @@ -186,7 +186,7 @@ compare_data (u8 * data1, u8 * data2, u32 start, u32 len, u32 * index) } int -tcp_test_fifo1 (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo1 (vlib_main_t * vm, unformat_input_t * input) { svm_fifo_t *f; u32 fifo_size = 1 << 20; @@ -423,7 +423,7 @@ err: } static int -tcp_test_fifo2 (vlib_main_t * vm) +sfifo_test_fifo2 (vlib_main_t * vm) { svm_fifo_t *f; u32 fifo_size = 1 << 20; @@ -505,7 +505,7 @@ tcp_test_fifo2 (vlib_main_t * vm) } static int -tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo3 (vlib_main_t * vm, unformat_input_t * input) { svm_fifo_t *f; u32 fifo_size = 4 << 10; @@ -730,7 +730,7 @@ tcp_test_fifo3 (vlib_main_t * vm, unformat_input_t * input) } static int -tcp_test_fifo4 (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo4 (vlib_main_t * vm, unformat_input_t * input) { svm_fifo_t *f; u32 fifo_size = 6 << 10; @@ -803,7 +803,7 @@ fifo_pos (svm_fifo_t * f, u32 pos) } static int -tcp_test_fifo5 (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo5 (vlib_main_t * vm, unformat_input_t * input) { svm_fifo_t *f; u32 fifo_size = 401, j = 0, offset = 200; @@ -932,7 +932,7 @@ tcp_test_fifo5 (vlib_main_t * vm, unformat_input_t * input) } static int -tcp_test_fifo_grow (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo_grow (vlib_main_t * vm, unformat_input_t * input) { int verbose = 0, fifo_size = 201, start_offset = 100, i, j, rv; int test_n_bytes, deq_bytes, enq_bytes, n_deqs, n_enqs; @@ -1206,7 +1206,7 @@ svm_fifo_trace_elem_t fifo_trace[] = {}; /* *INDENT-ON* */ static int -tcp_test_fifo_replay (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo_replay (vlib_main_t * vm, unformat_input_t * input) { svm_fifo_t f; int verbose = 0; @@ -1236,15 +1236,15 @@ tcp_test_fifo_replay (vlib_main_t * vm, unformat_input_t * input) return 0; } -static svm_fifo_segment_main_t segment_main; +static fifo_segment_main_t segment_main; static int -tcp_test_fifo_segment_hello_world (int verbose) +sfifo_test_fifo_segment_hello_world (int verbose) { - svm_fifo_segment_create_args_t _a, *a = &_a; - svm_fifo_segment_main_t *sm = &segment_main; + fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &segment_main; u8 *test_data, *retrieved_data = 0; - svm_fifo_segment_private_t *sp; + fifo_segment_t *sp; svm_fifo_t *f; int rv; @@ -1252,12 +1252,12 @@ tcp_test_fifo_segment_hello_world (int verbose) a->segment_name = "fifo-test1"; a->segment_size = 256 << 10; - rv = svm_fifo_segment_create (sm, a); + rv = fifo_segment_create (sm, a); SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv); - sp = svm_fifo_segment_get_segment (sm, a->new_segment_indices[0]); - f = svm_fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FREELIST); + sp = fifo_segment_get_segment (sm, a->new_segment_indices[0]); + f = fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FIFO); SFIFO_TEST (f != 0, "svm_fifo_segment_alloc_fifo"); @@ -1281,19 +1281,19 @@ tcp_test_fifo_segment_hello_world (int verbose) vec_free (test_data); vec_free (retrieved_data); - svm_fifo_segment_free_fifo (sp, f, FIFO_SEGMENT_RX_FREELIST); - svm_fifo_segment_delete (sm, sp); + fifo_segment_free_fifo (sp, f); + fifo_segment_delete (sm, sp); return 0; } static int -tcp_test_fifo_segment_slave (int verbose) +sfifo_test_fifo_segment_slave (int verbose) { - svm_fifo_segment_create_args_t _a, *a = &_a; - svm_fifo_segment_main_t *sm = &segment_main; + fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &segment_main; u8 *test_data, *retrieved_data = 0; - svm_fifo_segment_private_t *sp; - svm_fifo_segment_header_t *fsh; + fifo_segment_t *sp; + fifo_segment_header_t *fsh; ssvm_shared_header_t *sh; svm_fifo_t *f; u32 *result; @@ -1305,13 +1305,13 @@ tcp_test_fifo_segment_slave (int verbose) clib_memset (a, 0, sizeof (*a)); a->segment_name = "fifo-test1"; - rv = svm_fifo_segment_attach (sm, a); + rv = fifo_segment_attach (sm, a); SFIFO_TEST (!rv, "svm_fifo_segment_attach returned %d", rv); - sp = svm_fifo_segment_get_segment (sm, a->new_segment_indices[0]); + sp = fifo_segment_get_segment (sm, a->new_segment_indices[0]); sh = sp->ssvm.sh; - fsh = (svm_fifo_segment_header_t *) sh->opaque[0]; + fsh = (fifo_segment_header_t *) sh->opaque[0]; /* might wanna wait.. */ f = fsh->fifos; @@ -1340,11 +1340,11 @@ tcp_test_fifo_segment_slave (int verbose) } static int -tcp_test_fifo_segment_master_slave (int verbose) +sfifo_test_fifo_segment_master_slave (int verbose) { - svm_fifo_segment_create_args_t _a, *a = &_a; - svm_fifo_segment_main_t *sm = &segment_main; - svm_fifo_segment_private_t *sp; + fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &segment_main; + fifo_segment_t *sp; svm_fifo_t *f; u8 *test_data; u32 *result; @@ -1356,18 +1356,18 @@ tcp_test_fifo_segment_master_slave (int verbose) SFIFO_TEST (0, "fork failed"); if (!pid) - tcp_test_fifo_segment_slave (verbose); + sfifo_test_fifo_segment_slave (verbose); clib_memset (a, 0, sizeof (*a)); a->segment_name = "fifo-test1"; a->segment_size = 256 << 10; - rv = svm_fifo_segment_create (sm, a); + rv = fifo_segment_create (sm, a); SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv); - sp = svm_fifo_segment_get_segment (sm, a->new_segment_indices[0]); - f = svm_fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FREELIST); + sp = fifo_segment_get_segment (sm, a->new_segment_indices[0]); + f = fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FIFO); SFIFO_TEST (f != 0, "svm_fifo_segment_alloc_fifo alloc"); @@ -1389,17 +1389,17 @@ tcp_test_fifo_segment_master_slave (int verbose) SFIFO_TEST (*result == 0, "slave reported no error"); vec_free (test_data); - svm_fifo_segment_free_fifo (sp, f, FIFO_SEGMENT_RX_FREELIST); - svm_fifo_segment_delete (sm, sp); + fifo_segment_free_fifo (sp, f); + fifo_segment_delete (sm, sp); return 0; } static int -tcp_test_fifo_segment_mempig (int verbose) +sfifo_test_fifo_segment_mempig (int verbose) { - svm_fifo_segment_create_args_t _a, *a = &_a; - svm_fifo_segment_main_t *sm = &segment_main; - svm_fifo_segment_private_t *sp; + fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &segment_main; + fifo_segment_t *sp; svm_fifo_t *f; svm_fifo_t **flist = 0; int rv; @@ -1410,15 +1410,15 @@ tcp_test_fifo_segment_mempig (int verbose) a->segment_name = "fifo-test1"; a->segment_size = 256 << 10; - rv = svm_fifo_segment_create (sm, a); + rv = fifo_segment_create (sm, a); SFIFO_TEST (!rv, "svm_fifo_segment_create returned %d", rv); - sp = svm_fifo_segment_get_segment (sm, a->new_segment_indices[0]); + sp = fifo_segment_get_segment (sm, a->new_segment_indices[0]); for (i = 0; i < 1000; i++) { - f = svm_fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FREELIST); + f = fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FIFO); if (f == 0) break; vec_add1 (flist, f); @@ -1429,14 +1429,14 @@ tcp_test_fifo_segment_mempig (int verbose) for (i = 0; i < vec_len (flist); i++) { f = flist[i]; - svm_fifo_segment_free_fifo (sp, f, FIFO_SEGMENT_RX_FREELIST); + fifo_segment_free_fifo (sp, f); } _vec_len (flist) = 0; for (i = 0; i < 1000; i++) { - f = svm_fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FREELIST); + f = fifo_segment_alloc_fifo (sp, 4096, FIFO_SEGMENT_RX_FIFO); if (f == 0) break; vec_add1 (flist, f); @@ -1447,15 +1447,15 @@ tcp_test_fifo_segment_mempig (int verbose) for (i = 0; i < vec_len (flist); i++) { f = flist[i]; - svm_fifo_segment_free_fifo (sp, f, FIFO_SEGMENT_RX_FREELIST); + fifo_segment_free_fifo (sp, f); } - svm_fifo_segment_delete (sm, sp); + fifo_segment_delete (sm, sp); return 0; } static int -tcp_test_fifo_segment (vlib_main_t * vm, unformat_input_t * input) +sfifo_test_fifo_segment (vlib_main_t * vm, unformat_input_t * input) { int rv, verbose = 0; @@ -1465,27 +1465,27 @@ tcp_test_fifo_segment (vlib_main_t * vm, unformat_input_t * input) verbose = 1; else if (unformat (input, "masterslave")) { - if ((rv = tcp_test_fifo_segment_master_slave (verbose))) + if ((rv = sfifo_test_fifo_segment_master_slave (verbose))) return -1; } else if (unformat (input, "basic")) { - if ((rv = tcp_test_fifo_segment_hello_world (verbose))) + if ((rv = sfifo_test_fifo_segment_hello_world (verbose))) return -1; } else if (unformat (input, "mempig")) { - if ((rv = tcp_test_fifo_segment_mempig (verbose))) + if ((rv = sfifo_test_fifo_segment_mempig (verbose))) return -1; } else if (unformat (input, "all")) { - if ((rv = tcp_test_fifo_segment_hello_world (verbose))) + if ((rv = sfifo_test_fifo_segment_hello_world (verbose))) return -1; - if ((rv = tcp_test_fifo_segment_mempig (verbose))) + if ((rv = sfifo_test_fifo_segment_mempig (verbose))) return -1; /* Pretty slow so avoid running it always - if ((rv = tcp_test_fifo_segment_master_slave (verbose))) + if ((rv = sfifo_test_fifo_segment_master_slave (verbose))) return -1; */ } @@ -1509,27 +1509,27 @@ svm_fifo_test (vlib_main_t * vm, unformat_input_t * input, while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "fifo1")) - res = tcp_test_fifo1 (vm, input); + res = sfifo_test_fifo1 (vm, input); else if (unformat (input, "fifo2")) - res = tcp_test_fifo2 (vm); + res = sfifo_test_fifo2 (vm); else if (unformat (input, "fifo3")) - res = tcp_test_fifo3 (vm, input); + res = sfifo_test_fifo3 (vm, input); else if (unformat (input, "fifo4")) - res = tcp_test_fifo4 (vm, input); + res = sfifo_test_fifo4 (vm, input); else if (unformat (input, "fifo5")) - res = tcp_test_fifo5 (vm, input); + res = sfifo_test_fifo5 (vm, input); else if (unformat (input, "replay")) - res = tcp_test_fifo_replay (vm, input); + res = sfifo_test_fifo_replay (vm, input); else if (unformat (input, "grow")) - res = tcp_test_fifo_grow (vm, input); + res = sfifo_test_fifo_grow (vm, input); else if (unformat (input, "segment")) - res = tcp_test_fifo_segment (vm, input); + res = sfifo_test_fifo_segment (vm, input); else if (unformat (input, "all")) { - if ((res = tcp_test_fifo1 (vm, input))) + if ((res = sfifo_test_fifo1 (vm, input))) goto done; - if ((res = tcp_test_fifo2 (vm))) + if ((res = sfifo_test_fifo2 (vm))) goto done; /* @@ -1537,46 +1537,46 @@ svm_fifo_test (vlib_main_t * vm, unformat_input_t * input, */ str = "nsegs 10 overlap seed 123"; unformat_init_cstring (input, str); - if ((res = tcp_test_fifo3 (vm, input))) + if ((res = sfifo_test_fifo3 (vm, input))) goto done; unformat_free (input); str = "nsegs 10 overlap seed 123 in-seq-all"; unformat_init_cstring (input, str); - if ((res = tcp_test_fifo3 (vm, input))) + if ((res = sfifo_test_fifo3 (vm, input))) goto done; unformat_free (input); str = "nsegs 10 overlap seed 123 initial-offset 3917"; unformat_init_cstring (input, str); - if ((res = tcp_test_fifo3 (vm, input))) + if ((res = sfifo_test_fifo3 (vm, input))) goto done; unformat_free (input); str = "nsegs 10 overlap seed 123 initial-offset 3917 drop"; unformat_init_cstring (input, str); - if ((res = tcp_test_fifo3 (vm, input))) + if ((res = sfifo_test_fifo3 (vm, input))) goto done; unformat_free (input); str = "nsegs 10 seed 123 initial-offset 3917 drop no-randomize"; unformat_init_cstring (input, str); - if ((res = tcp_test_fifo3 (vm, input))) + if ((res = sfifo_test_fifo3 (vm, input))) goto done; unformat_free (input); - if ((res = tcp_test_fifo4 (vm, input))) + if ((res = sfifo_test_fifo4 (vm, input))) goto done; - if ((res = tcp_test_fifo5 (vm, input))) + if ((res = sfifo_test_fifo5 (vm, input))) goto done; - if ((res = tcp_test_fifo_grow (vm, input))) + if ((res = sfifo_test_fifo_grow (vm, input))) goto done; str = "all"; unformat_init_cstring (input, str); - if ((res = tcp_test_fifo_segment (vm, input))) + if ((res = sfifo_test_fifo_segment (vm, input))) goto done; } else diff --git a/src/svm/CMakeLists.txt b/src/svm/CMakeLists.txt index ab6f7f71954..7664014153a 100644 --- a/src/svm/CMakeLists.txt +++ b/src/svm/CMakeLists.txt @@ -16,23 +16,23 @@ ############################################################################## add_vpp_library(svm SOURCES + fifo_segment.c + message_queue.c + queue.c svm.c ssvm.c svm_fifo.c - svm_fifo_segment.c - queue.c - message_queue.c MULTIARCH_SOURCES svm_fifo.c INSTALL_HEADERS + fifo_segment.h + message_queue.h + queue.h ssvm.h svm_common.h svm_fifo.h - svm_fifo_segment.h - queue.h - message_queue.h svm.h svmdb.h diff --git a/src/svm/fifo_segment.c b/src/svm/fifo_segment.c new file mode 100644 index 00000000000..6bf2634a290 --- /dev/null +++ b/src/svm/fifo_segment.c @@ -0,0 +1,639 @@ +/* + * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include + +/** + * Initialize fifo segment shared header + */ +int +fifo_segment_init (fifo_segment_t * fs) +{ + fifo_segment_header_t *fsh; + ssvm_shared_header_t *sh; + void *oldheap; + + sh = fs->ssvm.sh; + oldheap = ssvm_push_heap (sh); + + fsh = clib_mem_alloc (sizeof (*fsh)); + clib_memset (fsh, 0, sizeof (*fsh)); + fs->h = sh->opaque[0] = fsh; + + ssvm_pop_heap (oldheap); + + sh->ready = 1; + return (0); +} + +/** + * Create a fifo segment in process-private memory + */ +static int +fifo_segment_create_process_private (fifo_segment_main_t * sm, + fifo_segment_create_args_t * a) +{ + u32 pagesize = clib_mem_get_page_size (); + ssvm_shared_header_t *sh; + fifo_segment_t *s; + u32 rnd_size = 0; + u8 *heap; + + pool_get (sm->segments, s); + clib_memset (s, 0, sizeof (*s)); + + rnd_size = (a->segment_size + (pagesize - 1)) & ~pagesize; + +#if USE_DLMALLOC == 0 + heap = mheap_alloc (0, rnd_size); + if (heap == 0) + { + clib_unix_warning ("mheap alloc"); + pool_put (sm->segments, s); + return -1; + } + { + mheap_t *heap_header; + heap_header = mheap_header (heap); + heap_header->flags |= MHEAP_FLAG_THREAD_SAFE; + } +#else + heap = create_mspace (rnd_size, 1 /* locked */ ); +#endif + + s->ssvm.ssvm_size = rnd_size; + s->ssvm.i_am_master = 1; + s->ssvm.my_pid = getpid (); + s->ssvm.name = format (0, "%s%c", a->segment_name, 0); + s->ssvm.requested_va = ~0; + + /* Allocate a [sic] shared memory header, in process memory... */ + sh = clib_mem_alloc_aligned (sizeof (*sh), CLIB_CACHE_LINE_BYTES); + s->ssvm.sh = sh; + + clib_memset (sh, 0, sizeof (*sh)); + sh->heap = heap; + + fifo_segment_init (s); + vec_add1 (a->new_segment_indices, s - sm->segments); + + return (0); +} + +/** + * Create a fifo segment and initialize as master + */ +int +fifo_segment_create (fifo_segment_main_t * sm, fifo_segment_create_args_t * a) +{ + fifo_segment_t *s; + int rv; + + if (a->segment_type == SSVM_SEGMENT_PRIVATE) + return fifo_segment_create_process_private (sm, a); + + /* Allocate a fresh segment */ + pool_get (sm->segments, s); + clib_memset (s, 0, sizeof (*s)); + + s->ssvm.ssvm_size = a->segment_size; + s->ssvm.i_am_master = 1; + s->ssvm.my_pid = getpid (); + s->ssvm.name = format (0, "%s%c", a->segment_name, 0); + s->ssvm.requested_va = sm->next_baseva; + + if ((rv = ssvm_master_init (&s->ssvm, a->segment_type))) + { + pool_put (sm->segments, s); + return (rv); + } + + /* Note: requested_va updated due to seg base addr randomization */ + sm->next_baseva = s->ssvm.sh->ssvm_va + a->segment_size; + + fifo_segment_init (s); + vec_add1 (a->new_segment_indices, s - sm->segments); + return (0); +} + +/** + * Attach as slave to a fifo segment + */ +int +fifo_segment_attach (fifo_segment_main_t * sm, fifo_segment_create_args_t * a) +{ + fifo_segment_t *s; + int rv; + + pool_get_zero (sm->segments, s); + + s->ssvm.ssvm_size = a->segment_size; + s->ssvm.my_pid = getpid (); + s->ssvm.name = format (0, "%s%c", a->segment_name, 0); + s->ssvm.requested_va = sm->next_baseva; + if (a->segment_type == SSVM_SEGMENT_MEMFD) + s->ssvm.fd = a->memfd_fd; + else + s->ssvm.attach_timeout = sm->timeout_in_seconds; + + if ((rv = ssvm_slave_init (&s->ssvm, a->segment_type))) + { + _vec_len (s) = vec_len (s) - 1; + return (rv); + } + + /* Fish the segment header */ + s->h = s->ssvm.sh->opaque[0]; + + vec_add1 (a->new_segment_indices, s - sm->segments); + return (0); +} + +void +fifo_segment_delete (fifo_segment_main_t * sm, fifo_segment_t * s) +{ + ssvm_delete (&s->ssvm); + clib_memset (s, 0xfe, sizeof (*s)); + pool_put (sm->segments, s); +} + +u32 +fifo_segment_index (fifo_segment_main_t * sm, fifo_segment_t * s) +{ + return s - sm->segments; +} + +void * +svm_fifo_segment_heap (fifo_segment_t * seg) +{ + return seg->ssvm.sh->heap; +} + +fifo_segment_t * +fifo_segment_get_segment (fifo_segment_main_t * sm, u32 segment_index) +{ + return pool_elt_at_index (sm->segments, segment_index); +} + +void +fifo_segment_info (fifo_segment_t * seg, char **address, size_t * size) +{ + if (ssvm_type (&seg->ssvm) == SSVM_SEGMENT_PRIVATE) + { +#if USE_DLMALLOC == 0 + mheap_t *heap_header; + + *address = pointer_to_uword (seg->ssvm.sh->heap); + heap_header = mheap_header (seg->ssvm.sh->heap); + *size = heap_header->max_size; +#else + mspace_get_address_and_size (seg->ssvm.sh->heap, address, size); +#endif + } + else + { + *address = (char *) seg->ssvm.sh->ssvm_va; + *size = seg->ssvm.ssvm_size; + } +} + +void +fifo_segment_main_init (fifo_segment_main_t * sm, u64 baseva, + u32 timeout_in_seconds) +{ + sm->next_baseva = baseva; + sm->timeout_in_seconds = timeout_in_seconds; +} + +static void +fifo_init_for_segment (fifo_segment_header_t * fsh, svm_fifo_t * f, + u32 size, u32 fl_index) +{ + f->freelist_index = fl_index; + f->default_chunk.start_byte = 0; + f->default_chunk.length = size; + f->default_chunk.next = f->start_chunk = f->end_chunk = &f->default_chunk; + f->head_chunk = f->tail_chunk = f->ooo_enq = f->ooo_deq = f->start_chunk; + f->next = fsh->free_fifos[fl_index]; + fsh->free_fifos[fl_index] = f; +} + +static inline int +fs_free_list_for_size (u32 size) +{ + return max_log2 (size) - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE); +} + +static inline int +fs_fifo_size_is_valid (u32 size) +{ + /* + * 4K minimum. It's not likely that anything good will happen + * with a smaller FIFO. + */ + return size >= FIFO_SEGMENT_MIN_FIFO_SIZE + && size <= FIFO_SEGMENT_MAX_FIFO_SIZE; +} + +static void +allocate_new_fifo_batch (fifo_segment_header_t * fsh, + u32 data_size_in_bytes, int chunk_size) +{ + u32 size, rounded_data_size; + int i, fl_index; + u8 *fifos_mem; + svm_fifo_t *f; + + rounded_data_size = (1 << (max_log2 (data_size_in_bytes))); + fl_index = fs_free_list_for_size (data_size_in_bytes); + + /* Calculate space requirement $$$ round-up data_size_in_bytes */ + size = (sizeof (*f) + rounded_data_size) * chunk_size; + + /* Allocate fifo space. May fail. */ + fifos_mem = clib_mem_alloc_aligned_at_offset (size, CLIB_CACHE_LINE_BYTES, + 0 /* align_offset */ , + 0 /* os_out_of_memory */ ); + + /* Out of space.. */ + if (fifos_mem == 0) + return; + + /* Carve fifo space */ + for (i = 0; i < chunk_size; i++) + { + f = (svm_fifo_t *) fifos_mem; + fifo_init_for_segment (fsh, f, rounded_data_size, fl_index); + fifos_mem += sizeof (*f) + rounded_data_size; + } +} + +/** + * Allocate fifo in fifo segment + */ +svm_fifo_t * +fifo_segment_alloc_fifo (fifo_segment_t * fs, u32 data_bytes, + fifo_segment_ftype_t ftype) +{ + fifo_segment_header_t *fsh; + ssvm_shared_header_t *sh; + svm_fifo_t *f = 0; + void *oldheap; + int fl_index; + + if (!fs_fifo_size_is_valid (data_bytes)) + { + clib_warning ("fifo size out of range %d", data_bytes); + return 0; + } + + fl_index = fs_free_list_for_size (data_bytes); + + sh = fs->ssvm.sh; + ssvm_lock_non_recursive (sh, 1); + + fsh = (fifo_segment_header_t *) sh->opaque[0]; + vec_validate_init_empty (fsh->free_fifos, fl_index, 0); + f = fsh->free_fifos[fl_index]; + + /* Try to allocate batch of fifos */ + if (PREDICT_FALSE (!f)) + { + oldheap = ssvm_push_heap (sh); + allocate_new_fifo_batch (fsh, data_bytes, + FIFO_SEGMENT_ALLOC_BATCH_SIZE); + ssvm_pop_heap (oldheap); + f = fsh->free_fifos[fl_index]; + } + if (PREDICT_TRUE (f != 0)) + { + fsh->free_fifos[fl_index] = f->next; + /* (re)initialize the fifo, as in svm_fifo_create */ + memset (f, 0, sizeof (*f)); + svm_fifo_init (f, data_bytes); + goto found; + } + + /* Failed to allocate batch, try just one fifo. This can also fail, + * in which case, create another segment */ + oldheap = ssvm_push_heap (sh); + f = svm_fifo_create (data_bytes); + ssvm_pop_heap (oldheap); + + if (PREDICT_FALSE (f == 0)) + goto done; + + f->freelist_index = fl_index; + +found: + /* If rx fifo type add to active fifos list. When cleaning up segment, + * we need a list of active sessions that should be disconnected. Since + * both rx and tx fifos keep pointers to the session, it's enough to track + * only one. */ + if (ftype == FIFO_SEGMENT_RX_FIFO) + { + if (fsh->fifos) + { + fsh->fifos->prev = f; + f->next = fsh->fifos; + } + fsh->fifos = f; + f->flags |= SVM_FIFO_F_LL_TRACKED; + } + fsh->n_active_fifos++; + +done: + ssvm_unlock_non_recursive (sh); + return (f); +} + +/** + * Free fifo allocated in fifo segment + */ +void +fifo_segment_free_fifo (fifo_segment_t * s, svm_fifo_t * f) +{ + fifo_segment_header_t *fsh; + ssvm_shared_header_t *sh; + int fl_index; + + ASSERT (f->refcnt > 0); + + if (--f->refcnt > 0) + return; + + sh = s->ssvm.sh; + fsh = (fifo_segment_header_t *) sh->opaque[0]; + fl_index = f->freelist_index; + + ASSERT (fl_index < vec_len (fsh->free_fifos)); + + ssvm_lock_non_recursive (sh, 2); + + /* Remove from active list. Only rx fifos are tracked */ + if (f->flags & SVM_FIFO_F_LL_TRACKED) + { + if (f->prev) + f->prev->next = f->next; + else + fsh->fifos = f->next; + if (f->next) + f->next->prev = f->prev; + f->flags &= ~SVM_FIFO_F_LL_TRACKED; + } + + /* Add to free list */ + f->next = fsh->free_fifos[fl_index]; + f->prev = 0; + fsh->free_fifos[fl_index] = f; + + if (CLIB_DEBUG) + { + f->master_session_index = ~0; + f->master_thread_index = ~0; + } + + fsh->n_active_fifos--; + ssvm_unlock_non_recursive (sh); +} + +/** + * Pre-allocates fifo pairs in fifo segment + */ +void +fifo_segment_preallocate_fifo_pairs (fifo_segment_t * fs, + u32 rx_fifo_size, u32 tx_fifo_size, + u32 * n_fifo_pairs) +{ + u32 rx_rounded_data_size, tx_rounded_data_size, pair_size; + u32 rx_fifos_size, tx_fifos_size, pairs_to_allocate; + ssvm_shared_header_t *sh = fs->ssvm.sh; + fifo_segment_header_t *fsh = fs->h; + int i, rx_fl_index, tx_fl_index; + u8 *rx_fifo_mem, *tx_fifo_mem; + uword space_available; + void *oldheap; + svm_fifo_t *f; + + /* Parameter check */ + if (rx_fifo_size == 0 || tx_fifo_size == 0 || *n_fifo_pairs == 0) + return; + + if (!fs_fifo_size_is_valid (rx_fifo_size)) + { + clib_warning ("rx fifo_size out of range %d", rx_fifo_size); + return; + } + + if (!fs_fifo_size_is_valid (tx_fifo_size)) + { + clib_warning ("tx fifo_size out of range %d", tx_fifo_size); + return; + } + + rx_rounded_data_size = (1 << (max_log2 (rx_fifo_size))); + rx_fl_index = fs_free_list_for_size (rx_fifo_size); + tx_rounded_data_size = (1 << (max_log2 (tx_fifo_size))); + tx_fl_index = fs_free_list_for_size (tx_fifo_size); + + /* Calculate space requirements */ + pair_size = 2 * sizeof (*f) + rx_rounded_data_size + tx_rounded_data_size; +#if USE_DLMALLOC == 0 + space_available = fs->ssvm.ssvm_size - mheap_bytes (sh->heap); +#else + space_available = fs->ssvm.ssvm_size - mspace_usable_size (sh->heap); +#endif + + pairs_to_allocate = clib_min (space_available / pair_size, *n_fifo_pairs); + rx_fifos_size = (sizeof (*f) + rx_rounded_data_size) * pairs_to_allocate; + tx_fifos_size = (sizeof (*f) + tx_rounded_data_size) * pairs_to_allocate; + + vec_validate_init_empty (fsh->free_fifos, + clib_max (rx_fl_index, tx_fl_index), 0); + + oldheap = ssvm_push_heap (sh); + + /* Allocate rx and tx fifo memory. May fail. */ + rx_fifo_mem = clib_mem_alloc_aligned_at_offset (rx_fifos_size, + CLIB_CACHE_LINE_BYTES, + 0 /* align_offset */ , + 0 /* os_out_of_memory */ ); + tx_fifo_mem = clib_mem_alloc_aligned_at_offset (tx_fifos_size, + CLIB_CACHE_LINE_BYTES, + 0 /* align_offset */ , + 0 /* os_out_of_memory */ ); + + /* Make sure it worked. Clean up if it didn't... */ + if (rx_fifo_mem == 0 || tx_fifo_mem == 0) + { + rx_fifo_mem ? clib_mem_free (rx_fifo_mem) : clib_mem_free (tx_fifo_mem); + clib_warning ("fifo preallocation failure: rx size %d tx size %u " + "npairs %d", rx_fifo_size, tx_fifo_size, *n_fifo_pairs); + ssvm_pop_heap (oldheap); + return; + } + + /* Carve rx and tx fifo memory */ + for (i = 0; i < pairs_to_allocate; i++) + { + f = (svm_fifo_t *) rx_fifo_mem; + fifo_init_for_segment (fsh, f, rx_rounded_data_size, rx_fl_index); + rx_fifo_mem += sizeof (*f) + rx_rounded_data_size; + + f = (svm_fifo_t *) tx_fifo_mem; + fifo_init_for_segment (fsh, f, tx_rounded_data_size, tx_fl_index); + tx_fifo_mem += sizeof (*f) + tx_rounded_data_size; + } + + /* Account for the pairs allocated */ + *n_fifo_pairs -= pairs_to_allocate; + ssvm_pop_heap (oldheap); +} + +/** + * Get number of active fifos + */ +u32 +fifo_segment_num_fifos (fifo_segment_t * fs) +{ + return fs->h->n_active_fifos; +} + +u32 +fifo_segment_num_free_fifos (fifo_segment_t * fs, u32 fifo_size_in_bytes) +{ + u32 count = 0, rounded_data_size, fl_index; + fifo_segment_header_t *fsh; + ssvm_shared_header_t *sh; + svm_fifo_t *f; + int i; + + sh = fs->ssvm.sh; + fsh = (fifo_segment_header_t *) sh->opaque[0]; + + /* Count all free fifos? */ + if (fifo_size_in_bytes == ~0) + { + for (i = 0; i < vec_len (fsh->free_fifos); i++) + { + f = fsh->free_fifos[i]; + if (f == 0) + continue; + + while (f) + { + f = f->next; + count++; + } + } + return count; + } + + rounded_data_size = (1 << (max_log2 (fifo_size_in_bytes))); + fl_index = fs_free_list_for_size (rounded_data_size); + + if (fl_index >= vec_len (fsh->free_fifos)) + return 0; + + f = fsh->free_fifos[fl_index]; + if (f == 0) + return 0; + + while (f) + { + f = f->next; + count++; + } + return count; +} + +u8 +fifo_segment_has_fifos (fifo_segment_t * fs) +{ + return fs->h->fifos != 0; +} + +svm_fifo_t * +fifo_segment_get_fifo_list (fifo_segment_t * fs) +{ + return fs->h->fifos; +} + +u8 * +format_fifo_segment_type (u8 * s, va_list * args) +{ + fifo_segment_t *sp; + sp = va_arg (*args, fifo_segment_t *); + ssvm_segment_type_t st = ssvm_type (&sp->ssvm); + + if (st == SSVM_SEGMENT_PRIVATE) + s = format (s, "%s", "private-heap"); + else if (st == SSVM_SEGMENT_MEMFD) + s = format (s, "%s", "memfd"); + else if (st == SSVM_SEGMENT_SHM) + s = format (s, "%s", "shm"); + else + s = format (s, "%s", "unknown"); + return s; +} + +/** + * Segment format function + */ +u8 * +format_fifo_segment (u8 * s, va_list * args) +{ + fifo_segment_t *sp = va_arg (*args, fifo_segment_t *); + int verbose __attribute__ ((unused)) = va_arg (*args, int); + fifo_segment_header_t *fsh = sp->h; + u32 count, indent; + svm_fifo_t *f; + int i; + + indent = format_get_indent (s) + 2; +#if USE_DLMALLOC == 0 + s = format (s, "%U segment heap: %U\n", format_white_space, indent, + format_mheap, svm_fifo_segment_heap (sp), verbose); + s = format (s, "%U segment has %u active fifos\n", + format_white_space, indent, fifo_segment_num_fifos (sp)); +#endif + + for (i = 0; i < vec_len (fsh->free_fifos); i++) + { + f = fsh->free_fifos[i]; + if (f == 0) + continue; + count = 0; + while (f) + { + f = f->next; + count++; + } + + s = format (s, "%U%-5u Kb: %u free", + format_white_space, indent + 2, + 1 << (i + max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE) - 10), + count); + } + return s; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/svm/fifo_segment.h b/src/svm/fifo_segment.h new file mode 100644 index 00000000000..cc0ff3adf3a --- /dev/null +++ b/src/svm/fifo_segment.h @@ -0,0 +1,139 @@ +/* + * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef __included_fifo_segment_h__ +#define __included_fifo_segment_h__ + +#include +#include + +typedef enum +{ + FIFO_SEGMENT_FTYPE_NONE = -1, + FIFO_SEGMENT_RX_FIFO = 0, + FIFO_SEGMENT_TX_FIFO, + FIFO_SEGMENT_N_FTYPES +} fifo_segment_ftype_t; + +#define FIFO_SEGMENT_MIN_FIFO_SIZE 4096 /* 4kB min fifo size */ +#define FIFO_SEGMENT_MAX_FIFO_SIZE (2 << 30) /* 2GB max fifo size */ +#define FIFO_SEGMENT_ALLOC_BATCH_SIZE 32 /* Allocation quantum */ + +typedef enum fifo_segment_flags_ +{ + FIFO_SEGMENT_F_IS_PREALLOCATED = 1 << 0, + FIFO_SEGMENT_F_WILL_DELETE = 1 << 1, +} fifo_segment_flags_t; + +typedef struct +{ + svm_fifo_t *fifos; /**< Linked list of active RX fifos */ + svm_fifo_t **free_fifos; /**< Freelists, by fifo size */ + u32 n_active_fifos; /**< Number of active fifos */ + u8 flags; /**< Segment flags */ +} fifo_segment_header_t; + +typedef struct +{ + ssvm_private_t ssvm; /**< ssvm segment data */ + fifo_segment_header_t *h; /**< fifo segment data */ +} fifo_segment_t; + +typedef struct +{ + fifo_segment_t *segments; /**< pool of fifo segments */ + u64 next_baseva; /**< Where to put the next one */ + u32 timeout_in_seconds; /**< Time to wait during attach */ +} fifo_segment_main_t; + +typedef struct +{ + ssvm_segment_type_t segment_type; /**< type of segment requested */ + u32 segment_size; /**< size of the segment */ + int memfd_fd; /**< fd for memfd segments */ + char *segment_name; /**< segment name */ + u32 *new_segment_indices; /**< return vec of new seg indices */ +} fifo_segment_create_args_t; + +#define fifo_segment_flags(_fs) _fs->h->flags + +int fifo_segment_init (fifo_segment_t * fs); +int fifo_segment_create (fifo_segment_main_t * sm, + fifo_segment_create_args_t * a); +int fifo_segment_attach (fifo_segment_main_t * sm, + fifo_segment_create_args_t * a); +void fifo_segment_delete (fifo_segment_main_t * sm, fifo_segment_t * fs); +fifo_segment_t *fifo_segment_get_segment (fifo_segment_main_t * sm, + u32 fs_index); +u32 fifo_segment_index (fifo_segment_main_t * sm, fifo_segment_t * fs); +void fifo_segment_info (fifo_segment_t * seg, char **address, size_t * size); + +/** + * Allocate fifo in fifo segment + * + * @param fs fifo segment + * @param data_bytes size of default fifo chunk in bytes + * @param ftype fifo type @ref fifo_segment_ftype_t + * @return new fifo or 0 if alloc failed + */ +svm_fifo_t *fifo_segment_alloc_fifo (fifo_segment_t * fs, + u32 data_bytes, + fifo_segment_ftype_t ftype); + +/** + * Free fifo allocated in fifo segment + * + * @param fs fifo segment + * @param f fifo to be freed + */ +void fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f); + +/** + * Pre-allocates fifo pairs in fifo segment + * + * The number of fifos pre-allocated is the minimum of the requested number + * of pairs and the maximum number that fit within the segment. If the maximum + * is hit, the number of fifo pairs requested is updated by subtracting the + * number of fifos that have been successfully allocated. + * + * @param fs fifo segment + * @param rx_fifo_size data size of rx fifos + * @param tx_fifo_size data size of tx fifos + * @param n_fifo_pairs number of pairs requested. Prior to returning, this + * is decremented by the the number of pairs allocated. + */ +void fifo_segment_preallocate_fifo_pairs (fifo_segment_t * fs, + u32 rx_fifo_size, + u32 tx_fifo_size, + u32 * n_fifo_pairs); +u8 fifo_segment_has_fifos (fifo_segment_t * fs); +svm_fifo_t *fifo_segment_get_fifo_list (fifo_segment_t * fs); +u32 fifo_segment_num_fifos (fifo_segment_t * fs); +u32 fifo_segment_num_free_fifos (fifo_segment_t * fs, u32 fifo_size_in_bytes); + +void fifo_segment_main_init (fifo_segment_main_t * sm, u64 baseva, + u32 timeout_in_seconds); + +format_function_t format_fifo_segment; +format_function_t format_fifo_segment_type; + +#endif /* __included_fifo_segment_h__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/svm/svm_fifo.c b/src/svm/svm_fifo.c index a335519d1e4..eafe497eec1 100644 --- a/src/svm/svm_fifo.c +++ b/src/svm/svm_fifo.c @@ -882,7 +882,7 @@ svm_fifo_dequeue_drop_all (svm_fifo_t * f) } int -svm_fifo_segments (svm_fifo_t * f, svm_fifo_segment_t * fs) +svm_fifo_segments (svm_fifo_t * f, svm_fifo_seg_t * fs) { u32 cursize, head, tail, head_idx; @@ -914,7 +914,7 @@ svm_fifo_segments (svm_fifo_t * f, svm_fifo_segment_t * fs) } void -svm_fifo_segments_free (svm_fifo_t * f, svm_fifo_segment_t * fs) +svm_fifo_segments_free (svm_fifo_t * f, svm_fifo_seg_t * fs) { u32 head, head_idx; diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h index 619d6093429..4f2f61939b7 100644 --- a/src/svm/svm_fifo.h +++ b/src/svm/svm_fifo.h @@ -67,6 +67,7 @@ typedef enum svm_fifo_flag_ { SVM_FIFO_F_SIZE_UPDATE = 1 << 0, SVM_FIFO_F_MULTI_CHUNK = 1 << 1, + SVM_FIFO_F_LL_TRACKED = 1 << 2, } svm_fifo_flag_t; typedef struct _svm_fifo @@ -124,11 +125,11 @@ typedef enum SVM_FIFO_FULL = -2, } svm_fifo_err_t; -typedef struct svm_fifo_segment_ +typedef struct svm_fifo_seg_ { u8 *data; u32 len; -} svm_fifo_segment_t; +} svm_fifo_seg_t; #if SVM_FIFO_TRACE #define svm_fifo_trace_add(_f, _s, _l, _t) \ @@ -352,8 +353,8 @@ int svm_fifo_dequeue_nowait (svm_fifo_t * f, u32 max_bytes, u8 * copy_here); int svm_fifo_peek (svm_fifo_t * f, u32 offset, u32 max_bytes, u8 * copy_here); int svm_fifo_dequeue_drop (svm_fifo_t * f, u32 max_bytes); void svm_fifo_dequeue_drop_all (svm_fifo_t * f); -int svm_fifo_segments (svm_fifo_t * f, svm_fifo_segment_t * fs); -void svm_fifo_segments_free (svm_fifo_t * f, svm_fifo_segment_t * fs); +int svm_fifo_segments (svm_fifo_t * f, svm_fifo_seg_t * fs); +void svm_fifo_segments_free (svm_fifo_t * f, svm_fifo_seg_t * fs); void svm_fifo_init_pointers (svm_fifo_t * f, u32 head, u32 tail); void svm_fifo_clone (svm_fifo_t * df, svm_fifo_t * sf); void svm_fifo_overwrite_head (svm_fifo_t * f, u8 * data, u32 len); diff --git a/src/svm/svm_fifo_segment.c b/src/svm/svm_fifo_segment.c deleted file mode 100644 index 8a8bd4aa7ff..00000000000 --- a/src/svm/svm_fifo_segment.c +++ /dev/null @@ -1,668 +0,0 @@ -/* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include - -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.start_byte = 0; - f->default_chunk.length = size; - f->default_chunk.next = f->start_chunk = f->end_chunk = &f->default_chunk; - f->head_chunk = f->tail_chunk = f->ooo_enq = f->ooo_deq = f->start_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) -{ - int freelist_index; - u32 size; - u8 *fifo_space; - u32 rounded_data_size; - svm_fifo_t *f; - int i; - - rounded_data_size = (1 << (max_log2 (data_size_in_bytes))); - freelist_index = max_log2 (rounded_data_size) - - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE); - - /* Calculate space requirement $$$ round-up data_size_in_bytes */ - size = (sizeof (*f) + rounded_data_size) * chunk_size; - - /* Allocate fifo space. May fail. */ - fifo_space = clib_mem_alloc_aligned_at_offset - (size, CLIB_CACHE_LINE_BYTES, 0 /* align_offset */ , - 0 /* os_out_of_memory */ ); - - /* Out of space.. */ - if (fifo_space == 0) - return; - - /* Carve fifo space */ - for (i = 0; i < chunk_size; i++) - { - fifo_init_for_segment (fsh, fifo_space, rounded_data_size, - freelist_index); - fifo_space += sizeof (*f) + rounded_data_size; - } -} - -/** - * Pre-allocates fifo pairs in fifo segment - * - * The number of fifos pre-allocated is the minimum of the requested number - * of pairs and the maximum number that fit within the segment. If the maximum - * is hit, the number of fifo pairs requested is updated by subtracting the - * number of fifos that have been successfully allocated. - */ -void -svm_fifo_segment_preallocate_fifo_pairs (svm_fifo_segment_private_t * s, - u32 rx_fifo_size, u32 tx_fifo_size, - u32 * n_fifo_pairs) -{ - u32 rx_rounded_data_size, tx_rounded_data_size, pair_size; - u32 rx_fifos_size, tx_fifos_size, pairs_to_allocate; - int rx_freelist_index, tx_freelist_index; - ssvm_shared_header_t *sh = s->ssvm.sh; - svm_fifo_segment_header_t *fsh = s->h; - u8 *rx_fifo_space, *tx_fifo_space; - uword space_available; - void *oldheap; - svm_fifo_t *f; - int i; - - /* Parameter check */ - if (rx_fifo_size == 0 || tx_fifo_size == 0 || *n_fifo_pairs == 0) - return; - - if (rx_fifo_size < FIFO_SEGMENT_MIN_FIFO_SIZE || - rx_fifo_size > FIFO_SEGMENT_MAX_FIFO_SIZE) - { - clib_warning ("rx fifo_size out of range %d", rx_fifo_size); - return; - } - - if (tx_fifo_size < FIFO_SEGMENT_MIN_FIFO_SIZE || - tx_fifo_size > FIFO_SEGMENT_MAX_FIFO_SIZE) - { - clib_warning ("tx fifo_size out of range %d", rx_fifo_size); - return; - } - - rx_rounded_data_size = (1 << (max_log2 (rx_fifo_size))); - rx_freelist_index = max_log2 (rx_fifo_size) - - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE); - tx_rounded_data_size = (1 << (max_log2 (tx_fifo_size))); - tx_freelist_index = max_log2 (tx_fifo_size) - - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE); - - /* Calculate space requirements */ - pair_size = 2 * sizeof (*f) + rx_rounded_data_size + tx_rounded_data_size; -#if USE_DLMALLOC == 0 - space_available = s->ssvm.ssvm_size - mheap_bytes (sh->heap); -#else - space_available = s->ssvm.ssvm_size - mspace_usable_size (sh->heap); -#endif - - pairs_to_allocate = clib_min (space_available / pair_size, *n_fifo_pairs); - rx_fifos_size = (sizeof (*f) + rx_rounded_data_size) * pairs_to_allocate; - tx_fifos_size = (sizeof (*f) + tx_rounded_data_size) * pairs_to_allocate; - - vec_validate_init_empty (fsh->free_fifos, - clib_max (rx_freelist_index, tx_freelist_index), - 0); - - oldheap = ssvm_push_heap (sh); - /* Allocate rx fifo space. May fail. */ - rx_fifo_space = clib_mem_alloc_aligned_at_offset - (rx_fifos_size, CLIB_CACHE_LINE_BYTES, 0 /* align_offset */ , - 0 /* os_out_of_memory */ ); - - /* Same for TX */ - tx_fifo_space = clib_mem_alloc_aligned_at_offset - (tx_fifos_size, CLIB_CACHE_LINE_BYTES, 0 /* align_offset */ , - 0 /* os_out_of_memory */ ); - - /* Make sure it worked. Clean up if it didn't... */ - if (rx_fifo_space == 0 || tx_fifo_space == 0) - { - if (rx_fifo_space) - clib_mem_free (rx_fifo_space); - else - clib_warning ("rx fifo preallocation failure: size %d npairs %d", - rx_fifo_size, *n_fifo_pairs); - - if (tx_fifo_space) - clib_mem_free (tx_fifo_space); - else - clib_warning ("tx fifo preallocation failure: size %d nfifos %d", - tx_fifo_size, *n_fifo_pairs); - ssvm_pop_heap (oldheap); - return; - } - - /* Carve rx fifo space */ - for (i = 0; i < pairs_to_allocate; i++) - { - fifo_init_for_segment (fsh, rx_fifo_space, rx_rounded_data_size, - rx_freelist_index); - rx_fifo_space += sizeof (*f) + rx_rounded_data_size; - } - /* Carve tx fifo space */ - for (i = 0; i < pairs_to_allocate; i++) - { - fifo_init_for_segment (fsh, tx_fifo_space, tx_rounded_data_size, - tx_freelist_index); - tx_fifo_space += sizeof (*f) + tx_rounded_data_size; - } - - /* Account for the pairs allocated */ - *n_fifo_pairs -= pairs_to_allocate; - ssvm_pop_heap (oldheap); -} - -/** - * Initialize svm fifo segment shared header - */ -int -svm_fifo_segment_init (svm_fifo_segment_private_t * s) -{ - svm_fifo_segment_header_t *fsh; - ssvm_shared_header_t *sh; - void *oldheap; - - sh = s->ssvm.sh; - oldheap = ssvm_push_heap (sh); - - fsh = clib_mem_alloc (sizeof (*fsh)); - clib_memset (fsh, 0, sizeof (*fsh)); - s->h = sh->opaque[0] = fsh; - - ssvm_pop_heap (oldheap); - - sh->ready = 1; - return (0); -} - -/** - * Create an svm fifo segment and initialize as master - */ -int -svm_fifo_segment_create (svm_fifo_segment_main_t * sm, - svm_fifo_segment_create_args_t * a) -{ - svm_fifo_segment_private_t *s; - int rv; - - /* Allocate a fresh segment */ - pool_get (sm->segments, s); - clib_memset (s, 0, sizeof (*s)); - - s->ssvm.ssvm_size = a->segment_size; - s->ssvm.i_am_master = 1; - s->ssvm.my_pid = getpid (); - s->ssvm.name = format (0, "%s%c", a->segment_name, 0); - s->ssvm.requested_va = sm->next_baseva; - - if ((rv = ssvm_master_init (&s->ssvm, a->segment_type))) - { - pool_put (sm->segments, s); - return (rv); - } - - /* Note: requested_va updated due to seg base addr randomization */ - sm->next_baseva = s->ssvm.sh->ssvm_va + a->segment_size; - - svm_fifo_segment_init (s); - vec_add1 (a->new_segment_indices, s - sm->segments); - return (0); -} - -/** - * Create an svm fifo segment in process-private memory - */ -int -svm_fifo_segment_create_process_private (svm_fifo_segment_main_t * sm, - svm_fifo_segment_create_args_t * a) -{ - svm_fifo_segment_private_t *s; - ssvm_shared_header_t *sh; - u32 rnd_size = 0; - u8 *heap; - u32 pagesize = clib_mem_get_page_size (); - - pool_get (sm->segments, s); - clib_memset (s, 0, sizeof (*s)); - - rnd_size = (a->segment_size + (pagesize - 1)) & ~pagesize; - -#if USE_DLMALLOC == 0 - heap = mheap_alloc (0, rnd_size); - if (heap == 0) - { - clib_unix_warning ("mheap alloc"); - pool_put (sm->segments, s); - return -1; - } - { - mheap_t *heap_header; - heap_header = mheap_header (heap); - heap_header->flags |= MHEAP_FLAG_THREAD_SAFE; - } -#else - heap = create_mspace (rnd_size, 1 /* locked */ ); -#endif - - s->ssvm.ssvm_size = rnd_size; - s->ssvm.i_am_master = 1; - s->ssvm.my_pid = getpid (); - s->ssvm.name = format (0, "%s%c", a->segment_name, 0); - s->ssvm.requested_va = ~0; - - /* Allocate a [sic] shared memory header, in process memory... */ - sh = clib_mem_alloc_aligned (sizeof (*sh), CLIB_CACHE_LINE_BYTES); - s->ssvm.sh = sh; - - clib_memset (sh, 0, sizeof (*sh)); - sh->heap = heap; - - svm_fifo_segment_init (s); - vec_add1 (a->new_segment_indices, s - sm->segments); - - return (0); -} - -/** - * Attach as slave to an svm fifo segment - */ -int -svm_fifo_segment_attach (svm_fifo_segment_main_t * sm, - svm_fifo_segment_create_args_t * a) -{ - svm_fifo_segment_private_t *s; - int rv; - - /* Allocate a fresh segment */ - pool_get (sm->segments, s); - clib_memset (s, 0, sizeof (*s)); - - s->ssvm.ssvm_size = a->segment_size; - s->ssvm.my_pid = getpid (); - s->ssvm.name = format (0, "%s%c", a->segment_name, 0); - s->ssvm.requested_va = sm->next_baseva; - if (a->segment_type == SSVM_SEGMENT_MEMFD) - s->ssvm.fd = a->memfd_fd; - else - s->ssvm.attach_timeout = sm->timeout_in_seconds; - - if ((rv = ssvm_slave_init (&s->ssvm, a->segment_type))) - { - _vec_len (s) = vec_len (s) - 1; - return (rv); - } - - /* Fish the segment header */ - s->h = s->ssvm.sh->opaque[0]; - - vec_add1 (a->new_segment_indices, s - sm->segments); - return (0); -} - -void -svm_fifo_segment_delete (svm_fifo_segment_main_t * sm, - svm_fifo_segment_private_t * s) -{ - ssvm_delete (&s->ssvm); - clib_memset (s, 0xfe, sizeof (*s)); - pool_put (sm->segments, s); -} - -/** - * Allocate fifo in svm segment - */ -svm_fifo_t * -svm_fifo_segment_alloc_fifo (svm_fifo_segment_private_t * fs, - u32 data_size_in_bytes, - svm_fifo_segment_freelist_t list_index) -{ - ssvm_shared_header_t *sh; - svm_fifo_segment_header_t *fsh; - svm_fifo_t *f = 0; - void *oldheap; - int freelist_index; - - /* - * 4K minimum. It's not likely that anything good will happen - * with a smaller FIFO. - */ - if (data_size_in_bytes < FIFO_SEGMENT_MIN_FIFO_SIZE || - data_size_in_bytes > FIFO_SEGMENT_MAX_FIFO_SIZE) - { - clib_warning ("fifo size out of range %d", data_size_in_bytes); - return 0; - } - - freelist_index = max_log2 (data_size_in_bytes) - - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE); - - sh = fs->ssvm.sh; - ssvm_lock_non_recursive (sh, 1); - fsh = (svm_fifo_segment_header_t *) sh->opaque[0]; - - switch (list_index) - { - case FIFO_SEGMENT_RX_FREELIST: - case FIFO_SEGMENT_TX_FREELIST: - vec_validate_init_empty (fsh->free_fifos, freelist_index, 0); - f = fsh->free_fifos[freelist_index]; - if (PREDICT_FALSE (!f)) - { - oldheap = ssvm_push_heap (sh); - allocate_new_fifo_chunk (fsh, data_size_in_bytes, - FIFO_SEGMENT_ALLOC_CHUNK_SIZE); - ssvm_pop_heap (oldheap); - f = fsh->free_fifos[freelist_index]; - } - if (PREDICT_TRUE (f != 0)) - { - fsh->free_fifos[freelist_index] = f->next; - /* (re)initialize the fifo, as in svm_fifo_create */ - clib_memset (f, 0, sizeof (*f)); - svm_fifo_init (f, data_size_in_bytes); - goto found; - } - break; - case FIFO_SEGMENT_FREELIST_NONE: - break; - - default: - clib_warning ("ignore bogus freelist %d", list_index); - break; - } - - /* Catch all that allocates just one fifo. Note: this can fail, - * in which case: create another segment */ - oldheap = ssvm_push_heap (sh); - f = svm_fifo_create (data_size_in_bytes); - ssvm_pop_heap (oldheap); - if (PREDICT_FALSE (f == 0)) - goto done; - f->freelist_index = freelist_index; - -found: - /* If rx_freelist add to active fifos list. When cleaning up segment, - * we need a list of active sessions that should be disconnected. Since - * both rx and tx fifos keep pointers to the session, it's enough to track - * only one. */ - if (list_index == FIFO_SEGMENT_RX_FREELIST) - { - if (fsh->fifos) - { - fsh->fifos->prev = f; - f->next = fsh->fifos; - } - fsh->fifos = f; - } - fsh->n_active_fifos++; - -done: - ssvm_unlock_non_recursive (sh); - return (f); -} - -void -svm_fifo_segment_free_fifo (svm_fifo_segment_private_t * s, svm_fifo_t * f, - svm_fifo_segment_freelist_t list_index) -{ - ssvm_shared_header_t *sh; - svm_fifo_segment_header_t *fsh; - int freelist_index; - - ASSERT (f->refcnt > 0); - - if (--f->refcnt > 0) - return; - - sh = s->ssvm.sh; - fsh = (svm_fifo_segment_header_t *) sh->opaque[0]; - - freelist_index = f->freelist_index; - - ASSERT (freelist_index < vec_len (fsh->free_fifos)); - - ssvm_lock_non_recursive (sh, 2); - - switch (list_index) - { - case FIFO_SEGMENT_RX_FREELIST: - /* Remove from active list */ - if (f->prev) - f->prev->next = f->next; - else - fsh->fifos = f->next; - if (f->next) - f->next->prev = f->prev; - /* Fall through: we add only rx fifos to active pool */ - case FIFO_SEGMENT_TX_FREELIST: - /* Add to free list */ - f->next = fsh->free_fifos[freelist_index]; - f->prev = 0; - fsh->free_fifos[freelist_index] = f; - break; - case FIFO_SEGMENT_FREELIST_NONE: - break; - - default: - clib_warning ("ignore bogus freelist %d", list_index); - break; - } - - if (CLIB_DEBUG) - { - f->master_session_index = ~0; - f->master_thread_index = ~0; - } - - fsh->n_active_fifos--; - ssvm_unlock_non_recursive (sh); -} - -void -svm_fifo_segment_main_init (svm_fifo_segment_main_t * sm, u64 baseva, - u32 timeout_in_seconds) -{ - sm->next_baseva = baseva; - sm->timeout_in_seconds = timeout_in_seconds; -} - -u32 -svm_fifo_segment_index (svm_fifo_segment_main_t * sm, - svm_fifo_segment_private_t * s) -{ - return s - sm->segments; -} - -/** - * Retrieve svm segments pool. Used only for debug purposes. - */ -svm_fifo_segment_private_t * -svm_fifo_segment_segments_pool (svm_fifo_segment_main_t * sm) -{ - return sm->segments; -} - -/** - * Get number of active fifos - */ -u32 -svm_fifo_segment_num_fifos (svm_fifo_segment_private_t * fifo_segment) -{ - return fifo_segment->h->n_active_fifos; -} - -u32 -svm_fifo_segment_num_free_fifos (svm_fifo_segment_private_t * fifo_segment, - u32 fifo_size_in_bytes) -{ - ssvm_shared_header_t *sh; - svm_fifo_segment_header_t *fsh; - svm_fifo_t *f; - int i; - u32 count = 0, rounded_data_size, freelist_index; - - sh = fifo_segment->ssvm.sh; - fsh = (svm_fifo_segment_header_t *) sh->opaque[0]; - - /* Count all free fifos? */ - if (fifo_size_in_bytes == ~0) - { - for (i = 0; i < vec_len (fsh->free_fifos); i++) - { - f = fsh->free_fifos[i]; - if (f == 0) - continue; - - while (f) - { - f = f->next; - count++; - } - } - return count; - } - - rounded_data_size = (1 << (max_log2 (fifo_size_in_bytes))); - freelist_index = max_log2 (rounded_data_size) - - max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE); - - if (freelist_index >= vec_len (fsh->free_fifos)) - return 0; - - f = fsh->free_fifos[freelist_index]; - if (f == 0) - return 0; - - while (f) - { - f = f->next; - count++; - } - return count; -} - -void -svm_fifo_segment_info (svm_fifo_segment_private_t * seg, char **address, - size_t * size) -{ - if (ssvm_type (&seg->ssvm) == SSVM_SEGMENT_PRIVATE) - { -#if USE_DLMALLOC == 0 - mheap_t *heap_header; - - *address = pointer_to_uword (seg->ssvm.sh->heap); - heap_header = mheap_header (seg->ssvm.sh->heap); - *size = heap_header->max_size; -#else - mspace_get_address_and_size (seg->ssvm.sh->heap, address, size); -#endif - } - else - { - *address = (char *) seg->ssvm.sh->ssvm_va; - *size = seg->ssvm.ssvm_size; - } -} - -void * -svm_fifo_segment_heap (svm_fifo_segment_private_t * seg) -{ - return seg->ssvm.sh->heap; -} - -u8 * -format_svm_fifo_segment_type (u8 * s, va_list * args) -{ - svm_fifo_segment_private_t *sp; - sp = va_arg (*args, svm_fifo_segment_private_t *); - ssvm_segment_type_t st = ssvm_type (&sp->ssvm); - - if (st == SSVM_SEGMENT_PRIVATE) - s = format (s, "%s", "private-heap"); - else if (st == SSVM_SEGMENT_MEMFD) - s = format (s, "%s", "memfd"); - else if (st == SSVM_SEGMENT_SHM) - s = format (s, "%s", "shm"); - else - s = format (s, "%s", "unknown"); - return s; -} - -/** - * Segment format function - */ -u8 * -format_svm_fifo_segment (u8 * s, va_list * args) -{ - svm_fifo_segment_private_t *sp - = va_arg (*args, svm_fifo_segment_private_t *); - int verbose __attribute__ ((unused)) = va_arg (*args, int); - svm_fifo_segment_header_t *fsh = sp->h; - u32 count, indent; - svm_fifo_t *f; - int i; - - indent = format_get_indent (s) + 2; -#if USE_DLMALLOC == 0 - s = format (s, "%U segment heap: %U\n", format_white_space, indent, - format_mheap, svm_fifo_segment_heap (sp), verbose); - s = format (s, "%U segment has %u active fifos\n", - format_white_space, indent, svm_fifo_segment_num_fifos (sp)); -#endif - - for (i = 0; i < vec_len (fsh->free_fifos); i++) - { - f = fsh->free_fifos[i]; - if (f == 0) - continue; - count = 0; - while (f) - { - f = f->next; - count++; - } - - s = format (s, "%U%-5u Kb: %u free", - format_white_space, indent + 2, - 1 << (i + max_log2 (FIFO_SEGMENT_MIN_FIFO_SIZE) - 10), - count); - } - return s; -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/svm/svm_fifo_segment.h b/src/svm/svm_fifo_segment.h deleted file mode 100644 index d4d48093ae6..00000000000 --- a/src/svm/svm_fifo_segment.h +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#ifndef __included_ssvm_fifo_segment_h__ -#define __included_ssvm_fifo_segment_h__ - -#include -#include -#include - -typedef enum -{ - FIFO_SEGMENT_FREELIST_NONE = -1, - FIFO_SEGMENT_RX_FREELIST = 0, - FIFO_SEGMENT_TX_FREELIST, - FIFO_SEGMENT_N_FREELISTS -} svm_fifo_segment_freelist_t; - -#define FIFO_SEGMENT_MIN_FIFO_SIZE 4096 -#define FIFO_SEGMENT_MAX_FIFO_SIZE (2 << 30) /* 2GB max fifo size */ -#define FIFO_SEGMENT_ALLOC_CHUNK_SIZE 32 /* Allocation quantum */ - -#define FIFO_SEGMENT_F_IS_PREALLOCATED (1 << 0) -#define FIFO_SEGMENT_F_WILL_DELETE (1 << 1) - -typedef struct -{ - svm_fifo_t *fifos; /**< Linked list of active RX fifos */ - svm_fifo_t **free_fifos; /**< Freelists, by fifo size */ - u32 n_active_fifos; /**< Number of active fifos */ - u8 flags; /**< Segment flags */ -} svm_fifo_segment_header_t; - -typedef struct -{ - ssvm_private_t ssvm; - svm_fifo_segment_header_t *h; -} svm_fifo_segment_private_t; - -typedef struct -{ - volatile u32 lock; - - /** pool of segments */ - svm_fifo_segment_private_t *segments; - /* Where to put the next one */ - u64 next_baseva; - u32 timeout_in_seconds; -} svm_fifo_segment_main_t; - -typedef struct -{ - ssvm_segment_type_t segment_type; - char *segment_name; - u32 segment_size; - u32 *new_segment_indices; - int memfd_fd; -} svm_fifo_segment_create_args_t; - -#define svm_fifo_segment_flags(_seg) _seg->h->flags - -static inline svm_fifo_segment_private_t * -svm_fifo_segment_get_segment (svm_fifo_segment_main_t * sm, u32 segment_index) -{ - return pool_elt_at_index (sm->segments, segment_index); -} - -static inline u8 -svm_fifo_segment_has_fifos (svm_fifo_segment_private_t * fifo_segment) -{ - return fifo_segment->h->fifos != 0; -} - -static inline svm_fifo_t * -svm_fifo_segment_get_fifo_list (svm_fifo_segment_private_t * fifo_segment) -{ - return fifo_segment->h->fifos; -} - -int svm_fifo_segment_init (svm_fifo_segment_private_t * s); -int svm_fifo_segment_create (svm_fifo_segment_main_t * sm, - svm_fifo_segment_create_args_t * a); -int svm_fifo_segment_create_process_private (svm_fifo_segment_main_t * sm, - svm_fifo_segment_create_args_t - *); -void svm_fifo_segment_preallocate_fifo_pairs (svm_fifo_segment_private_t * s, - u32 rx_fifo_size, - u32 tx_fifo_size, - u32 * n_fifo_pairs); -int svm_fifo_segment_attach (svm_fifo_segment_main_t * sm, - svm_fifo_segment_create_args_t * a); -void svm_fifo_segment_delete (svm_fifo_segment_main_t * sm, - svm_fifo_segment_private_t * s); - -svm_fifo_t *svm_fifo_segment_alloc_fifo (svm_fifo_segment_private_t * s, - u32 data_size_in_bytes, - svm_fifo_segment_freelist_t index); -void svm_fifo_segment_free_fifo (svm_fifo_segment_private_t * s, - svm_fifo_t * f, - svm_fifo_segment_freelist_t index); -void svm_fifo_segment_main_init (svm_fifo_segment_main_t * sm, u64 baseva, - u32 timeout_in_seconds); -u32 svm_fifo_segment_index (svm_fifo_segment_main_t * sm, - svm_fifo_segment_private_t * s); -u32 svm_fifo_segment_num_fifos (svm_fifo_segment_private_t * fifo_segment); -u32 svm_fifo_segment_num_free_fifos (svm_fifo_segment_private_t * - fifo_segment, u32 fifo_size_in_bytes); -void svm_fifo_segment_info (svm_fifo_segment_private_t * seg, char **address, - size_t * size); - -svm_fifo_segment_private_t - * svm_fifo_segment_segments_pool (svm_fifo_segment_main_t * sm); - -format_function_t format_svm_fifo_segment; -format_function_t format_svm_fifo_segment_type; - -#endif /* __included_ssvm_fifo_segment_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/tests/vnet/session/quic_echo.c b/src/tests/vnet/session/quic_echo.c index 4d1288f66d5..7d0cedd1d6b 100644 --- a/src/tests/vnet/session/quic_echo.c +++ b/src/tests/vnet/session/quic_echo.c @@ -17,10 +17,10 @@ #include #include -#include #include #include +#include #define vl_typedefs /* define message structures */ #include @@ -141,7 +141,7 @@ typedef struct * and all other messages are exchanged using shm IPC. */ u8 use_sock_api; - svm_fifo_segment_main_t segment_main; + fifo_segment_main_t segment_main; } echo_main_t; echo_main_t echo_main; @@ -290,8 +290,8 @@ application_detach (echo_main_t * em) static int ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd) { - svm_fifo_segment_create_args_t _a, *a = &_a; - svm_fifo_segment_main_t *sm = &echo_main.segment_main; + fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &echo_main.segment_main; int rv; clib_memset (a, 0, sizeof (*a)); @@ -301,7 +301,7 @@ ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd) if (type == SSVM_SEGMENT_MEMFD) a->memfd_fd = fd; - if ((rv = svm_fifo_segment_attach (sm, a))) + if ((rv = fifo_segment_attach (sm, a))) { clib_warning ("svm_fifo_segment_attach ('%s') failed", name); return rv; @@ -454,15 +454,15 @@ disconnect_from_vpp (echo_main_t * em) static void vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) { - svm_fifo_segment_main_t *sm = &echo_main.segment_main; - svm_fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &echo_main.segment_main; + fifo_segment_create_args_t _a, *a = &_a; int rv; clib_memset (a, 0, sizeof (*a)); a->segment_name = (char *) mp->segment_name; a->segment_size = mp->segment_size; /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (sm, a); + rv = fifo_segment_attach (sm, a); if (rv) { clib_warning ("svm_fifo_segment_attach ('%s') failed", @@ -1286,7 +1286,7 @@ main (int argc, char **argv) { int i_am_server = 1, test_return_packets = 0; echo_main_t *em = &echo_main; - svm_fifo_segment_main_t *sm = &em->segment_main; + fifo_segment_main_t *sm = &em->segment_main; unformat_input_t _argv, *a = &_argv; u8 *chroot_prefix; u8 *uri = 0; @@ -1309,7 +1309,7 @@ main (int argc, char **argv) clib_time_init (&em->clib_time); init_error_string_table (em); - svm_fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20); + fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20); unformat_init_command_line (a, argv); while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT) diff --git a/src/tests/vnet/session/tcp_echo.c b/src/tests/vnet/session/tcp_echo.c index 3fcc285dc11..6c3ce928490 100644 --- a/src/tests/vnet/session/tcp_echo.c +++ b/src/tests/vnet/session/tcp_echo.c @@ -17,10 +17,10 @@ #include #include -#include #include #include +#include #define vl_typedefs /* define message structures */ #include @@ -141,7 +141,7 @@ typedef struct * and all other messages are exchanged using shm IPC. */ u8 use_sock_api; - svm_fifo_segment_main_t segment_main; + fifo_segment_main_t segment_main; } echo_main_t; echo_main_t echo_main; @@ -290,8 +290,8 @@ application_detach (echo_main_t * em) static int ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd) { - svm_fifo_segment_create_args_t _a, *a = &_a; - svm_fifo_segment_main_t *sm = &echo_main.segment_main; + fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &echo_main.segment_main; int rv; clib_memset (a, 0, sizeof (*a)); @@ -301,7 +301,7 @@ ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd) if (type == SSVM_SEGMENT_MEMFD) a->memfd_fd = fd; - if ((rv = svm_fifo_segment_attach (sm, a))) + if ((rv = fifo_segment_attach (sm, a))) { clib_warning ("svm_fifo_segment_attach ('%s') failed", name); return rv; @@ -456,15 +456,15 @@ disconnect_from_vpp (echo_main_t * em) static void vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) { - svm_fifo_segment_main_t *sm = &echo_main.segment_main; - svm_fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_main_t *sm = &echo_main.segment_main; + fifo_segment_create_args_t _a, *a = &_a; int rv; clib_memset (a, 0, sizeof (*a)); a->segment_name = (char *) mp->segment_name; a->segment_size = mp->segment_size; /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (sm, a); + rv = fifo_segment_attach (sm, a); if (rv) { clib_warning ("svm_fifo_segment_attach ('%s') failed", @@ -1291,7 +1291,7 @@ main (int argc, char **argv) { int i_am_server = 1, test_return_packets = 0; echo_main_t *em = &echo_main; - svm_fifo_segment_main_t *sm = &em->segment_main; + fifo_segment_main_t *sm = &em->segment_main; unformat_input_t _argv, *a = &_argv; u8 *chroot_prefix; u8 *uri = 0; @@ -1314,7 +1314,7 @@ main (int argc, char **argv) clib_time_init (&em->clib_time); init_error_string_table (em); - svm_fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20); + fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20); unformat_init_command_line (a, argv); while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT) diff --git a/src/tests/vnet/session/udp_echo.c b/src/tests/vnet/session/udp_echo.c index c949d4cbf6d..f1ecca8e926 100644 --- a/src/tests/vnet/session/udp_echo.c +++ b/src/tests/vnet/session/udp_echo.c @@ -27,9 +27,9 @@ #include #include #include -#include #include #include +#include #define vl_typedefs /* define message structures */ #include @@ -79,7 +79,7 @@ typedef struct uword *session_index_by_vpp_handles; /* fifo segment */ - svm_fifo_segment_private_t *seg; + fifo_segment_t *seg; /* intermediate rx buffer */ u8 *rx_buf; @@ -121,7 +121,7 @@ typedef struct /* VNET_API_ERROR_FOO -> "Foo" hash table */ uword *error_string_by_error_number; - svm_fifo_segment_main_t segment_main; + fifo_segment_main_t segment_main; u8 *connect_test_data; @@ -334,9 +334,9 @@ static void vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t * mp) { - svm_fifo_segment_create_args_t _a = { 0 }, *a = &_a; + fifo_segment_create_args_t _a = { 0 }, *a = &_a; udp_echo_main_t *utm = &udp_echo_main; - svm_fifo_segment_main_t *sm = &utm->segment_main; + fifo_segment_main_t *sm = &utm->segment_main; int rv; if (mp->retval) @@ -358,7 +358,7 @@ vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t * ASSERT (mp->app_event_queue_address); /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (sm, a); + rv = fifo_segment_attach (sm, a); if (rv) { clib_warning ("svm_fifo_segment_attach ('%s') failed", @@ -841,24 +841,24 @@ client_test (udp_echo_main_t * utm) static void vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) { - svm_fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_create_args_t _a, *a = &_a; udp_echo_main_t *utm = &udp_echo_main; - svm_fifo_segment_main_t *sm = &utm->segment_main; - svm_fifo_segment_private_t *seg; + fifo_segment_main_t *sm = &utm->segment_main; + fifo_segment_t *seg; int rv; clib_memset (a, 0, sizeof (*a)); a->segment_name = (char *) mp->segment_name; a->segment_size = mp->segment_size; /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (sm, a); + rv = fifo_segment_attach (sm, a); if (rv) { clib_warning ("svm_fifo_segment_attach ('%s') failed", mp->segment_name); return; } - seg = svm_fifo_segment_get_segment (sm, a->new_segment_indices[0]); + seg = fifo_segment_get_segment (sm, a->new_segment_indices[0]); clib_warning ("Mapped new segment '%s' size %d", seg->ssvm.name, seg->ssvm.ssvm_size); hash_set (utm->segments_table, clib_net_to_host_u64 (mp->segment_handle), @@ -869,8 +869,8 @@ static void vl_api_unmap_segment_t_handler (vl_api_unmap_segment_t * mp) { udp_echo_main_t *utm = &udp_echo_main; - svm_fifo_segment_main_t *sm = &utm->segment_main; - svm_fifo_segment_private_t *seg; + fifo_segment_main_t *sm = &utm->segment_main; + fifo_segment_t *seg; uword *seg_indexp; u64 segment_handle; @@ -882,8 +882,8 @@ vl_api_unmap_segment_t_handler (vl_api_unmap_segment_t * mp) return; } hash_unset (utm->segments_table, segment_handle); - seg = svm_fifo_segment_get_segment (sm, (u32) seg_indexp[0]); - svm_fifo_segment_delete (sm, seg); + seg = fifo_segment_get_segment (sm, (u32) seg_indexp[0]); + fifo_segment_delete (sm, seg); clib_warning ("Unmapped segment '%s'", segment_handle); } @@ -1127,7 +1127,7 @@ int main (int argc, char **argv) { udp_echo_main_t *utm = &udp_echo_main; - svm_fifo_segment_main_t *sm = &utm->segment_main; + fifo_segment_main_t *sm = &utm->segment_main; u8 *uri = (u8 *) "udp://6.0.1.1/1234"; unformat_input_t _argv, *a = &_argv; int i_am_server = 1; @@ -1139,7 +1139,7 @@ main (int argc, char **argv) clib_mem_init_thread_safe (0, 256 << 20); - svm_fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20); + fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20); vec_validate (utm->rx_buf, 128 << 10); utm->session_index_by_vpp_handles = hash_create (0, sizeof (uword)); diff --git a/src/vcl/vcl_bapi.c b/src/vcl/vcl_bapi.c index b9f621d356d..b28398101b3 100644 --- a/src/vcl/vcl_bapi.c +++ b/src/vcl/vcl_bapi.c @@ -65,7 +65,7 @@ static int vcl_segment_attach (u64 segment_handle, char *name, ssvm_segment_type_t type, int fd) { - svm_fifo_segment_create_args_t _a, *a = &_a; + fifo_segment_create_args_t _a, *a = &_a; int rv; memset (a, 0, sizeof (*a)); @@ -75,7 +75,7 @@ vcl_segment_attach (u64 segment_handle, char *name, ssvm_segment_type_t type, if (type == SSVM_SEGMENT_MEMFD) a->memfd_fd = fd; - if ((rv = svm_fifo_segment_attach (&vcm->segment_main, a))) + if ((rv = fifo_segment_attach (&vcm->segment_main, a))) { clib_warning ("svm_fifo_segment_attach ('%s') failed", name); return rv; @@ -88,15 +88,15 @@ vcl_segment_attach (u64 segment_handle, char *name, ssvm_segment_type_t type, static void vcl_segment_detach (u64 segment_handle) { - svm_fifo_segment_main_t *sm = &vcm->segment_main; - svm_fifo_segment_private_t *segment; + fifo_segment_main_t *sm = &vcm->segment_main; + fifo_segment_t *segment; u32 segment_index; segment_index = vcl_segment_table_lookup (segment_handle); if (segment_index == (u32) ~ 0) return; - segment = svm_fifo_segment_get_segment (sm, segment_index); - svm_fifo_segment_delete (sm, segment); + segment = fifo_segment_get_segment (sm, segment_index); + fifo_segment_delete (sm, segment); vcl_segment_table_del (segment_handle); VDBG (0, "detached segment %u handle %u", segment_index, segment_handle); } diff --git a/src/vcl/vcl_private.h b/src/vcl/vcl_private.h index 57828cf5b37..8bafa5f74b4 100644 --- a/src/vcl/vcl_private.h +++ b/src/vcl/vcl_private.h @@ -325,7 +325,7 @@ typedef struct vppcom_main_t_ /** Mapped segments table */ uword *segment_table; - svm_fifo_segment_main_t segment_main; + fifo_segment_main_t segment_main; #ifdef VCL_ELOG /* VPP Event-logger */ diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 6668d465fca..1641beee9f6 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -15,10 +15,10 @@ #include #include -#include #include #include #include +#include __thread uword __vcl_worker_index = ~0; @@ -924,8 +924,8 @@ vppcom_app_create (char *app_name) vcm->main_pid = getpid (); vcm->app_name = format (0, "%s", app_name); vppcom_init_error_string_table (); - svm_fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva, - 20 /* timeout in secs */ ); + fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva, + 20 /* timeout in secs */ ); pool_alloc (vcm->workers, vcl_cfg->max_workers); clib_spinlock_init (&vcm->workers_lock); clib_rwlock_init (&vcm->segment_table_lock); @@ -1611,7 +1611,7 @@ vppcom_session_read_segments (uint32_t session_handle, } } - n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds); + n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds); svm_fifo_unset_event (rx_fifo); return n_read; @@ -1628,7 +1628,7 @@ vppcom_session_free_segments (uint32_t session_handle, if (PREDICT_FALSE (!s || s->is_vep)) return; - svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds); + svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds); } int diff --git a/src/vnet/session-apps/echo_client.h b/src/vnet/session-apps/echo_client.h index 81ffcae77dd..68a5921f753 100644 --- a/src/vnet/session-apps/echo_client.h +++ b/src/vnet/session-apps/echo_client.h @@ -24,7 +24,6 @@ #include #include -#include #include #include diff --git a/src/vnet/session-apps/proxy.h b/src/vnet/session-apps/proxy.h index 6a24358ad65..9b80b3d1105 100644 --- a/src/vnet/session-apps/proxy.h +++ b/src/vnet/session-apps/proxy.h @@ -23,7 +23,6 @@ #include #include -#include #include #include diff --git a/src/vnet/session/application.c b/src/vnet/session/application.c index 82b6dfef534..69cc87c9575 100644 --- a/src/vnet/session/application.c +++ b/src/vnet/session/application.c @@ -504,7 +504,7 @@ static int application_alloc_and_init (app_init_args_t * a) { ssvm_segment_type_t seg_type = SSVM_SEGMENT_MEMFD; - segment_manager_properties_t *props; + segment_manager_props_t *props; vl_api_registration_t *reg; application_t *app; u64 *options; @@ -553,7 +553,7 @@ application_alloc_and_init (app_init_args_t * a) app->flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE; props = application_segment_manager_properties (app); - segment_manager_properties_init (props); + segment_manager_props_init (props); props->segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE]; props->prealloc_fifos = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS]; if (options[APP_OPTIONS_ADD_SEGMENT_SIZE]) @@ -719,7 +719,7 @@ application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk) /* * Setup first segment manager */ - sm = segment_manager_new (); + sm = segment_manager_alloc (); sm->app_wrk_index = app_wrk->wrk_index; if ((rv = segment_manager_init (sm, app->sm_properties.segment_size, @@ -746,7 +746,7 @@ application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk) int vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a) { - svm_fifo_segment_private_t *fs; + fifo_segment_t *fs; app_worker_map_t *wrk_map; app_worker_t *app_wrk; segment_manager_t *sm; @@ -838,7 +838,7 @@ app_name_from_api_index (u32 api_client_index) int vnet_application_attach (vnet_app_attach_args_t * a) { - svm_fifo_segment_private_t *fs; + fifo_segment_t *fs; application_t *app = 0; app_worker_t *app_wrk; segment_manager_t *sm; @@ -1313,13 +1313,13 @@ application_remove_proxy (application_t * app) /* *INDENT-ON* */ } -segment_manager_properties_t * +segment_manager_props_t * application_segment_manager_properties (application_t * app) { return &app->sm_properties; } -segment_manager_properties_t * +segment_manager_props_t * application_get_segment_manager_properties (u32 app_index) { application_t *app = application_get (app_index); @@ -1404,7 +1404,7 @@ format_application (u8 * s, va_list * args) { application_t *app = va_arg (*args, application_t *); CLIB_UNUSED (int verbose) = va_arg (*args, int); - segment_manager_properties_t *props; + segment_manager_props_t *props; const u8 *app_ns_name, *app_name; app_worker_map_t *wrk_map; app_worker_t *app_wrk; diff --git a/src/vnet/session/application.h b/src/vnet/session/application.h index 0cf97a75742..4485b743589 100644 --- a/src/vnet/session/application.h +++ b/src/vnet/session/application.h @@ -92,7 +92,7 @@ typedef struct application_ session_cb_vft_t cb_fns; /** Segment manager properties. Shared by all segment managers */ - segment_manager_properties_t sm_properties; + segment_manager_props_t sm_properties; /** Pool of mappings that keep track of workers associated to this app */ app_worker_map_t *worker_maps; @@ -197,10 +197,10 @@ u8 application_has_global_scope (application_t * app); void application_setup_proxy (application_t * app); void application_remove_proxy (application_t * app); -segment_manager_properties_t *application_get_segment_manager_properties (u32 - app_index); +segment_manager_props_t *application_get_segment_manager_properties (u32 + app_index); -segment_manager_properties_t +segment_manager_props_t * application_segment_manager_properties (application_t * app); /* diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h index 3e6abdbec86..aa1a3f30877 100644 --- a/src/vnet/session/application_interface.h +++ b/src/vnet/session/application_interface.h @@ -17,9 +17,9 @@ #include #include -#include #include #include +#include typedef struct _stream_session_cb_vft { diff --git a/src/vnet/session/application_local.c b/src/vnet/session/application_local.c index d2edd54512a..f868e1964cc 100644 --- a/src/vnet/session/application_local.c +++ b/src/vnet/session/application_local.c @@ -91,10 +91,10 @@ ct_session_endpoint (session_t * ll, session_endpoint_t * sep) int ct_session_connect_notify (session_t * ss) { - svm_fifo_segment_private_t *seg; ct_connection_t *sct, *cct; app_worker_t *client_wrk; segment_manager_t *sm; + fifo_segment_t *seg; u64 segment_handle; int is_fail = 0; session_t *cs; @@ -167,11 +167,11 @@ ct_init_local_session (app_worker_t * client_wrk, app_worker_t * server_wrk, ct_connection_t * ct, session_t * ls, session_t * ll) { u32 round_rx_fifo_sz, round_tx_fifo_sz, sm_index, seg_size; - segment_manager_properties_t *props; - svm_fifo_segment_private_t *seg; + segment_manager_props_t *props; application_t *server; segment_manager_t *sm; u32 margin = 16 << 10; + fifo_segment_t *seg; u64 segment_handle; int seg_index, rv; diff --git a/src/vnet/session/application_worker.c b/src/vnet/session/application_worker.c index 3cc84e84f1a..d98c437ec84 100644 --- a/src/vnet/session/application_worker.c +++ b/src/vnet/session/application_worker.c @@ -95,7 +95,7 @@ app_worker_free (app_worker_t * app_wrk) sm = segment_manager_get (app_wrk->connects_seg_manager); sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX; sm->first_is_protected = 0; - segment_manager_init_del (sm); + segment_manager_init_free (sm); } /* If first segment manager is used by a listener */ @@ -108,7 +108,7 @@ app_worker_free (app_worker_t * app_wrk) /* .. and has no fifos, e.g. it might be used for redirected sessions, * remove it */ if (!segment_manager_has_fifos (sm)) - segment_manager_del (sm); + segment_manager_free (sm); } pool_put (app_workers, app_wrk); @@ -140,7 +140,7 @@ app_worker_alloc_segment_manager (app_worker_t * app_wrk) return sm; } - sm = segment_manager_new (); + sm = segment_manager_alloc (); sm->app_wrk_index = app_wrk->wrk_index; return sm; @@ -238,7 +238,7 @@ app_worker_stop_listen_session (app_worker_t * app_wrk, session_t * ls) } else { - segment_manager_init_del (sm); + segment_manager_init_free (sm); } hash_unset (app_wrk->listeners_table, handle); } @@ -698,63 +698,20 @@ format_app_worker (u8 * s, va_list * args) void app_worker_format_connects (app_worker_t * app_wrk, int verbose) { - svm_fifo_segment_private_t *fifo_segment; - vlib_main_t *vm = vlib_get_main (); segment_manager_t *sm; - const u8 *app_name; - u8 *s = 0; /* Header */ if (!app_wrk) { - if (verbose) - vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App", - "API Client", "SegManager"); - else - vlib_cli_output (vm, "%-40s%-20s", "Connection", "App"); + segment_manager_format_sessions (0, verbose); return; } if (app_wrk->connects_seg_manager == (u32) ~ 0) return; - app_name = application_name_from_index (app_wrk->app_index); - - /* Across all fifo segments */ sm = segment_manager_get (app_wrk->connects_seg_manager); - - /* *INDENT-OFF* */ - segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({ - svm_fifo_t *fifo; - u8 *str; - - fifo = svm_fifo_segment_get_fifo_list (fifo_segment); - while (fifo) - { - u32 session_index, thread_index; - session_t *session; - - session_index = fifo->master_session_index; - thread_index = fifo->master_thread_index; - - session = session_get (session_index, thread_index); - str = format (0, "%U", format_session, session, verbose); - - if (verbose) - s = format (s, "%-40s%-20s%-15u%-10u", str, app_name, - app_wrk->api_client_index, app_wrk->connects_seg_manager); - else - s = format (s, "%-40s%-20s", str, app_name); - - vlib_cli_output (vm, "%v", s); - vec_reset_length (s); - vec_free (str); - - fifo = fifo->next; - } - vec_free (s); - })); - /* *INDENT-ON* */ + segment_manager_format_sessions (sm, verbose); } /* diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c index 2437f99098b..47c7f563542 100644 --- a/src/vnet/session/segment_manager.c +++ b/src/vnet/session/segment_manager.c @@ -17,34 +17,43 @@ #include #include -segment_manager_main_t segment_manager_main; +typedef struct segment_manager_main_ +{ + segment_manager_t *segment_managers; /**< Pool of segment managers */ + clib_valloc_main_t va_allocator; /**< Virtual address allocator */ + u32 seg_name_counter; /**< Counter for segment names */ -/** - * Counter used to build segment names - */ -static u32 segment_name_counter = 0; + /* + * Configuration + */ + u32 default_fifo_size; /**< default rx/tx fifo size */ + u32 default_segment_size; /**< default fifo segment size */ + u32 default_app_mq_size; /**< default app msg q size */ +} segment_manager_main_t; -/** - * Default fifo and segment size. TODO config. - */ -static u32 default_fifo_size = 1 << 12; -static u32 default_segment_size = 1 << 20; -static u32 default_app_evt_queue_size = 128; +static segment_manager_main_t sm_main; -segment_manager_properties_t * +#define segment_manager_foreach_segment_w_lock(VAR, SM, BODY) \ +do { \ + clib_rwlock_reader_lock (&(SM)->segments_rwlock); \ + pool_foreach((VAR), ((SM)->segments), (BODY)); \ + clib_rwlock_reader_unlock (&(SM)->segments_rwlock); \ +} while (0) + +static segment_manager_props_t * segment_manager_properties_get (segment_manager_t * sm) { app_worker_t *app_wrk = app_worker_get (sm->app_wrk_index); return application_get_segment_manager_properties (app_wrk->app_index); } -segment_manager_properties_t * -segment_manager_properties_init (segment_manager_properties_t * props) +segment_manager_props_t * +segment_manager_props_init (segment_manager_props_t * props) { - props->add_segment_size = default_segment_size; - props->rx_fifo_size = default_fifo_size; - props->tx_fifo_size = default_fifo_size; - props->evt_q_size = default_app_evt_queue_size; + props->add_segment_size = sm_main.default_segment_size; + props->rx_fifo_size = sm_main.default_fifo_size; + props->tx_fifo_size = sm_main.default_fifo_size; + props->evt_q_size = sm_main.default_app_mq_size; return props; } @@ -61,20 +70,103 @@ segment_manager_app_detach (segment_manager_t * sm) } always_inline u32 -segment_manager_segment_index (segment_manager_t * sm, - svm_fifo_segment_private_t * seg) +segment_manager_segment_index (segment_manager_t * sm, fifo_segment_t * seg) { return (seg - sm->segments); } +/** + * Adds segment to segment manager's pool + * + * If needed a writer's lock is acquired before allocating a new segment + * to avoid affecting any of the segments pool readers. + */ +int +segment_manager_add_segment (segment_manager_t * sm, u32 segment_size) +{ + segment_manager_main_t *smm = &sm_main; + u32 rnd_margin = 128 << 10, fs_index = ~0, page_size; + uword baseva = (uword) ~ 0ULL, alloc_size; + segment_manager_props_t *props; + fifo_segment_t *fs; + u8 *seg_name; + int rv; + + props = segment_manager_properties_get (sm); + + /* Not configured for addition of new segments and not first */ + if (!props->add_segment && !segment_size) + { + clib_warning ("cannot allocate new segment"); + return VNET_API_ERROR_INVALID_VALUE; + } + + /* + * Allocate fifo segment and lock if needed + */ + if (vlib_num_workers ()) + clib_rwlock_writer_lock (&sm->segments_rwlock); + + pool_get_zero (sm->segments, fs); + + /* + * Initialize ssvm segment and svm fifo private header + */ + segment_size = segment_size ? segment_size : props->add_segment_size; + page_size = clib_mem_get_page_size (); + segment_size = (segment_size + page_size - 1) & ~(page_size - 1); + if (props->segment_type != SSVM_SEGMENT_PRIVATE) + { + seg_name = format (0, "%d-%d%c", getpid (), smm->seg_name_counter++, 0); + alloc_size = (uword) segment_size + rnd_margin; + baseva = clib_valloc_alloc (&smm->va_allocator, alloc_size, 0); + if (!baseva) + { + clib_warning ("out of space for segments"); + pool_put (sm->segments, fs); + goto done; + } + } + else + seg_name = format (0, "%s%c", "process-private-segment", 0); + + fs->ssvm.ssvm_size = segment_size; + fs->ssvm.name = seg_name; + fs->ssvm.requested_va = baseva; + + if ((rv = ssvm_master_init (&fs->ssvm, props->segment_type))) + { + clib_warning ("svm_master_init ('%v', %u) failed", seg_name, + segment_size); + + if (props->segment_type != SSVM_SEGMENT_PRIVATE) + clib_valloc_free (&smm->va_allocator, baseva); + pool_put (sm->segments, fs); + goto done; + } + + fifo_segment_init (fs); + + /* + * Save segment index before dropping lock, if any held + */ + fs_index = fs - sm->segments; + +done: + + if (vlib_num_workers ()) + clib_rwlock_writer_unlock (&sm->segments_rwlock); + + return fs_index; +} + /** * Remove segment without lock */ void -segment_manager_del_segment (segment_manager_t * sm, - svm_fifo_segment_private_t * fs) +segment_manager_del_segment (segment_manager_t * sm, fifo_segment_t * fs) { - segment_manager_main_t *smm = &segment_manager_main; + segment_manager_main_t *smm = &sm_main; if (ssvm_type (&fs->ssvm) != SSVM_SEGMENT_PRIVATE) { @@ -103,12 +195,12 @@ segment_manager_del_segment (segment_manager_t * sm, static inline void segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index) { - svm_fifo_segment_private_t *fs; + fifo_segment_t *fs; u8 is_prealloc; clib_rwlock_writer_lock (&sm->segments_rwlock); fs = segment_manager_get_segment (sm, fs_index); - is_prealloc = svm_fifo_segment_flags (fs) & FIFO_SEGMENT_F_IS_PREALLOCATED; + is_prealloc = fifo_segment_flags (fs) & FIFO_SEGMENT_F_IS_PREALLOCATED; if (is_prealloc && !segment_manager_app_detached (sm)) { clib_rwlock_writer_unlock (&sm->segments_rwlock); @@ -122,7 +214,7 @@ segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index) /** * Reads a segment from the segment manager's pool without lock */ -svm_fifo_segment_private_t * +fifo_segment_t * segment_manager_get_segment (segment_manager_t * sm, u32 segment_index) { return pool_elt_at_index (sm->segments, segment_index); @@ -130,13 +222,13 @@ segment_manager_get_segment (segment_manager_t * sm, u32 segment_index) u64 segment_manager_segment_handle (segment_manager_t * sm, - svm_fifo_segment_private_t * segment) + fifo_segment_t * segment) { u32 segment_index = segment_manager_segment_index (sm, segment); return (((u64) segment_manager_index (sm) << 32) | segment_index); } -void +static void segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index, u32 * segment_index) { @@ -144,7 +236,14 @@ segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index, *segment_index = segment_handle & 0xFFFFFFFF; } -svm_fifo_segment_private_t * +u64 +segment_manager_make_segment_handle (u32 segment_manager_index, + u32 segment_index) +{ + return (((u64) segment_manager_index << 32) | segment_index); +} + +fifo_segment_t * segment_manager_get_segment_w_handle (u64 segment_handle) { u32 sm_index, segment_index; @@ -165,7 +264,7 @@ segment_manager_get_segment_w_handle (u64 segment_handle) * @ref segment_manager_segment_reader_unlock once it finishes working with * the segment. */ -svm_fifo_segment_private_t * +fifo_segment_t * segment_manager_get_segment_w_lock (segment_manager_t * sm, u32 segment_index) { clib_rwlock_reader_lock (&sm->segments_rwlock); @@ -185,98 +284,13 @@ segment_manager_segment_writer_unlock (segment_manager_t * sm) clib_rwlock_writer_unlock (&sm->segments_rwlock); } -/** - * Adds segment to segment manager's pool - * - * If needed a writer's lock is acquired before allocating a new segment - * to avoid affecting any of the segments pool readers. - */ -int -segment_manager_add_segment (segment_manager_t * sm, u32 segment_size) -{ - segment_manager_main_t *smm = &segment_manager_main; - u32 rnd_margin = 128 << 10, seg_index = ~0, page_size; - segment_manager_properties_t *props; - uword baseva = (uword) ~ 0ULL, alloc_size; - svm_fifo_segment_private_t *seg; - u8 *seg_name; - int rv; - - props = segment_manager_properties_get (sm); - - /* Not configured for addition of new segments and not first */ - if (!props->add_segment && !segment_size) - { - clib_warning ("cannot allocate new segment"); - return VNET_API_ERROR_INVALID_VALUE; - } - - /* - * Allocate fifo segment and lock if needed - */ - if (vlib_num_workers ()) - clib_rwlock_writer_lock (&sm->segments_rwlock); - - pool_get_zero (sm->segments, seg); - - /* - * Initialize ssvm segment and svm fifo private header - */ - segment_size = segment_size ? segment_size : props->add_segment_size; - page_size = clib_mem_get_page_size (); - segment_size = (segment_size + page_size - 1) & ~(page_size - 1); - if (props->segment_type != SSVM_SEGMENT_PRIVATE) - { - seg_name = format (0, "%d-%d%c", getpid (), segment_name_counter++, 0); - alloc_size = (uword) segment_size + rnd_margin; - baseva = clib_valloc_alloc (&smm->va_allocator, alloc_size, 0); - if (!baseva) - { - clib_warning ("out of space for segments"); - pool_put (sm->segments, seg); - goto done; - } - } - else - seg_name = format (0, "%s%c", "process-private-segment", 0); - - seg->ssvm.ssvm_size = segment_size; - seg->ssvm.name = seg_name; - seg->ssvm.requested_va = baseva; - - if ((rv = ssvm_master_init (&seg->ssvm, props->segment_type))) - { - clib_warning ("svm_master_init ('%v', %u) failed", seg_name, - segment_size); - - if (props->segment_type != SSVM_SEGMENT_PRIVATE) - clib_valloc_free (&smm->va_allocator, baseva); - pool_put (sm->segments, seg); - goto done; - } - - svm_fifo_segment_init (seg); - - /* - * Save segment index before dropping lock, if any held - */ - seg_index = seg - sm->segments; - -done: - - if (vlib_num_workers ()) - clib_rwlock_writer_unlock (&sm->segments_rwlock); - - return seg_index; -} - segment_manager_t * -segment_manager_new () +segment_manager_alloc (void) { - segment_manager_main_t *smm = &segment_manager_main; + segment_manager_main_t *smm = &sm_main; segment_manager_t *sm; - pool_get (smm->segment_managers, sm); - clib_memset (sm, 0, sizeof (*sm)); + + pool_get_zero (smm->segment_managers, sm); clib_rwlock_init (&sm->segments_rwlock); return sm; } @@ -292,13 +306,13 @@ segment_manager_init (segment_manager_t * sm, u32 first_seg_size, u32 rx_fifo_size, tx_fifo_size, pair_size; u32 rx_rounded_data_size, tx_rounded_data_size; u64 approx_total_size, max_seg_size = ((u64) 1 << 32) - (128 << 10); - segment_manager_properties_t *props; - svm_fifo_segment_private_t *segment; + segment_manager_props_t *props; + fifo_segment_t *segment; u32 approx_segment_count; int seg_index, i; props = segment_manager_properties_get (sm); - first_seg_size = clib_max (first_seg_size, default_segment_size); + first_seg_size = clib_max (first_seg_size, sm_main.default_segment_size); if (prealloc_fifo_pairs) { @@ -330,11 +344,11 @@ segment_manager_init (segment_manager_t * sm, u32 first_seg_size, if (i == 0) sm->event_queue = segment_manager_alloc_queue (segment, props); - svm_fifo_segment_preallocate_fifo_pairs (segment, - props->rx_fifo_size, - props->tx_fifo_size, - &prealloc_fifo_pairs); - svm_fifo_segment_flags (segment) = FIFO_SEGMENT_F_IS_PREALLOCATED; + fifo_segment_preallocate_fifo_pairs (segment, + props->rx_fifo_size, + props->tx_fifo_size, + &prealloc_fifo_pairs); + fifo_segment_flags (segment) = FIFO_SEGMENT_F_IS_PREALLOCATED; if (prealloc_fifo_pairs == 0) break; } @@ -354,22 +368,87 @@ segment_manager_init (segment_manager_t * sm, u32 first_seg_size, return 0; } +/** + * Cleanup segment manager. + */ +void +segment_manager_free (segment_manager_t * sm) +{ + segment_manager_main_t *smm = &sm_main; + fifo_segment_t *fifo_segment; + + ASSERT (!segment_manager_has_fifos (sm) + && segment_manager_app_detached (sm)); + + /* If we have empty preallocated segments that haven't been removed, remove + * them now. Apart from that, the first segment in the first segment manager + * is not removed when all fifos are removed. It can only be removed when + * the manager is explicitly deleted/detached by the app. */ + clib_rwlock_writer_lock (&sm->segments_rwlock); + + /* *INDENT-OFF* */ + pool_foreach (fifo_segment, sm->segments, ({ + segment_manager_del_segment (sm, fifo_segment); + })); + /* *INDENT-ON* */ + + clib_rwlock_writer_unlock (&sm->segments_rwlock); + + clib_rwlock_free (&sm->segments_rwlock); + if (CLIB_DEBUG) + clib_memset (sm, 0xfe, sizeof (*sm)); + pool_put (smm->segment_managers, sm); +} + +void +segment_manager_init_free (segment_manager_t * sm) +{ + segment_manager_app_detach (sm); + if (segment_manager_has_fifos (sm)) + segment_manager_del_sessions (sm); + else + { + ASSERT (!sm->first_is_protected || segment_manager_app_detached (sm)); + segment_manager_free (sm); + } +} + +segment_manager_t * +segment_manager_get (u32 index) +{ + return pool_elt_at_index (sm_main.segment_managers, index); +} + +segment_manager_t * +segment_manager_get_if_valid (u32 index) +{ + if (pool_is_free_index (sm_main.segment_managers, index)) + return 0; + return pool_elt_at_index (sm_main.segment_managers, index); +} + +u32 +segment_manager_index (segment_manager_t * sm) +{ + return sm - sm_main.segment_managers; +} + u8 segment_manager_has_fifos (segment_manager_t * sm) { - svm_fifo_segment_private_t *seg; + fifo_segment_t *seg; u8 first = 1; /* *INDENT-OFF* */ segment_manager_foreach_segment_w_lock (seg, sm, ({ - if (CLIB_DEBUG && !first && !svm_fifo_segment_has_fifos (seg) - && !(svm_fifo_segment_flags (seg) & FIFO_SEGMENT_F_IS_PREALLOCATED)) + if (CLIB_DEBUG && !first && !fifo_segment_has_fifos (seg) + && !(fifo_segment_flags (seg) & FIFO_SEGMENT_F_IS_PREALLOCATED)) { clib_warning ("segment %d has no fifos!", segment_manager_segment_index (sm, seg)); first = 0; } - if (svm_fifo_segment_has_fifos (seg)) + if (fifo_segment_has_fifos (seg)) { segment_manager_segment_reader_unlock (sm); return 1; @@ -386,7 +465,7 @@ segment_manager_has_fifos (segment_manager_t * sm) void segment_manager_del_sessions (segment_manager_t * sm) { - svm_fifo_segment_private_t *fifo_segment; + fifo_segment_t *fifo_segment; session_handle_t *handles = 0, *handle; session_t *session; svm_fifo_t *fifo; @@ -396,7 +475,7 @@ segment_manager_del_sessions (segment_manager_t * sm) /* Across all fifo segments used by the server */ /* *INDENT-OFF* */ segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({ - fifo = svm_fifo_segment_get_fifo_list (fifo_segment); + fifo = fifo_segment_get_fifo_list (fifo_segment); /* * Remove any residual sessions from the session lookup table @@ -422,75 +501,25 @@ segment_manager_del_sessions (segment_manager_t * sm) session_close (session_get_from_handle (*handle)); } -/** - * Removes segment manager. - * - * Since the fifos allocated in the segment keep backpointers to the sessions - * prior to removing the segment, we call session disconnect. This - * subsequently propagates into transport. - */ -void -segment_manager_del (segment_manager_t * sm) -{ - segment_manager_main_t *smm = &segment_manager_main; - svm_fifo_segment_private_t *fifo_segment; - - ASSERT (!segment_manager_has_fifos (sm) - && segment_manager_app_detached (sm)); - - /* If we have empty preallocated segments that haven't been removed, remove - * them now. Apart from that, the first segment in the first segment manager - * is not removed when all fifos are removed. It can only be removed when - * the manager is explicitly deleted/detached by the app. */ - clib_rwlock_writer_lock (&sm->segments_rwlock); - - /* *INDENT-OFF* */ - pool_foreach (fifo_segment, sm->segments, ({ - segment_manager_del_segment (sm, fifo_segment); - })); - /* *INDENT-ON* */ - - clib_rwlock_writer_unlock (&sm->segments_rwlock); - - clib_rwlock_free (&sm->segments_rwlock); - if (CLIB_DEBUG) - clib_memset (sm, 0xfe, sizeof (*sm)); - pool_put (smm->segment_managers, sm); -} - -void -segment_manager_init_del (segment_manager_t * sm) -{ - segment_manager_app_detach (sm); - if (segment_manager_has_fifos (sm)) - segment_manager_del_sessions (sm); - else - { - ASSERT (!sm->first_is_protected || segment_manager_app_detached (sm)); - segment_manager_del (sm); - } -} - int -segment_manager_try_alloc_fifos (svm_fifo_segment_private_t * fifo_segment, +segment_manager_try_alloc_fifos (fifo_segment_t * fifo_segment, u32 rx_fifo_size, u32 tx_fifo_size, svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo) { - rx_fifo_size = clib_max (rx_fifo_size, default_fifo_size); - *rx_fifo = svm_fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size, - FIFO_SEGMENT_RX_FREELIST); + rx_fifo_size = clib_max (rx_fifo_size, sm_main.default_fifo_size); + *rx_fifo = fifo_segment_alloc_fifo (fifo_segment, rx_fifo_size, + FIFO_SEGMENT_RX_FIFO); - tx_fifo_size = clib_max (tx_fifo_size, default_fifo_size); - *tx_fifo = svm_fifo_segment_alloc_fifo (fifo_segment, tx_fifo_size, - FIFO_SEGMENT_TX_FREELIST); + tx_fifo_size = clib_max (tx_fifo_size, sm_main.default_fifo_size); + *tx_fifo = fifo_segment_alloc_fifo (fifo_segment, tx_fifo_size, + FIFO_SEGMENT_TX_FIFO); if (*rx_fifo == 0) { /* This would be very odd, but handle it... */ if (*tx_fifo != 0) { - svm_fifo_segment_free_fifo (fifo_segment, *tx_fifo, - FIFO_SEGMENT_TX_FREELIST); + fifo_segment_free_fifo (fifo_segment, *tx_fifo); *tx_fifo = 0; } return -1; @@ -499,8 +528,7 @@ segment_manager_try_alloc_fifos (svm_fifo_segment_private_t * fifo_segment, { if (*rx_fifo != 0) { - svm_fifo_segment_free_fifo (fifo_segment, *rx_fifo, - FIFO_SEGMENT_RX_FREELIST); + fifo_segment_free_fifo (fifo_segment, *rx_fifo); *rx_fifo = 0; } return -1; @@ -514,12 +542,12 @@ segment_manager_alloc_session_fifos (segment_manager_t * sm, svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo) { - svm_fifo_segment_private_t *fifo_segment = 0; int alloc_fail = 1, rv = 0, new_fs_index; - segment_manager_properties_t *props; - u32 sm_index, fifo_segment_index; + segment_manager_props_t *props; + fifo_segment_t *fs = 0; + u32 sm_index, fs_index; u8 added_a_segment = 0; - u64 segment_handle; + u64 fs_handle; props = segment_manager_properties_get (sm); @@ -528,8 +556,8 @@ segment_manager_alloc_session_fifos (segment_manager_t * sm, */ /* *INDENT-OFF* */ - segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({ - alloc_fail = segment_manager_try_alloc_fifos (fifo_segment, + segment_manager_foreach_segment_w_lock (fs, sm, ({ + alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size, props->tx_fifo_size, rx_fifo, tx_fifo); @@ -548,18 +576,18 @@ alloc_check: ASSERT (rx_fifo && tx_fifo); sm_index = segment_manager_index (sm); - fifo_segment_index = segment_manager_segment_index (sm, fifo_segment); + fs_index = segment_manager_segment_index (sm, fs); (*tx_fifo)->segment_manager = sm_index; (*rx_fifo)->segment_manager = sm_index; - (*tx_fifo)->segment_index = fifo_segment_index; - (*rx_fifo)->segment_index = fifo_segment_index; + (*tx_fifo)->segment_index = fs_index; + (*rx_fifo)->segment_index = fs_index; if (added_a_segment) { app_worker_t *app_wrk; - segment_handle = segment_manager_segment_handle (sm, fifo_segment); + fs_handle = segment_manager_segment_handle (sm, fs); app_wrk = app_worker_get (sm->app_wrk_index); - rv = app_worker_add_segment_notify (app_wrk, segment_handle); + rv = app_worker_add_segment_notify (app_wrk, fs_handle); } /* Drop the lock after app is notified */ segment_manager_segment_reader_unlock (sm); @@ -582,9 +610,8 @@ alloc_check: clib_warning ("Failed to add new segment"); return SESSION_ERROR_SEG_CREATE; } - fifo_segment = segment_manager_get_segment_w_lock (sm, new_fs_index); - alloc_fail = segment_manager_try_alloc_fifos (fifo_segment, - props->rx_fifo_size, + fs = segment_manager_get_segment_w_lock (sm, new_fs_index); + alloc_fail = segment_manager_try_alloc_fifos (fs, props->rx_fifo_size, props->tx_fifo_size, rx_fifo, tx_fifo); added_a_segment = 1; @@ -600,7 +627,7 @@ alloc_check: void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) { - svm_fifo_segment_private_t *fifo_segment; + fifo_segment_t *fs; segment_manager_t *sm; u32 segment_index; @@ -613,11 +640,9 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) return; segment_index = rx_fifo->segment_index; - fifo_segment = segment_manager_get_segment_w_lock (sm, segment_index); - svm_fifo_segment_free_fifo (fifo_segment, rx_fifo, - FIFO_SEGMENT_RX_FREELIST); - svm_fifo_segment_free_fifo (fifo_segment, tx_fifo, - FIFO_SEGMENT_TX_FREELIST); + fs = segment_manager_get_segment_w_lock (sm, segment_index); + fifo_segment_free_fifo (fs, rx_fifo); + fifo_segment_free_fifo (fs, tx_fifo); /* * Try to remove svm segment if it has no fifos. This can be done only if @@ -625,7 +650,7 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) * and it is not protected. Moreover, if the segment is first and the app * has detached from the segment manager, remove the segment manager. */ - if (!svm_fifo_segment_has_fifos (fifo_segment)) + if (!fifo_segment_has_fifos (fs)) { segment_manager_segment_reader_unlock (sm); @@ -637,7 +662,7 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo) if (segment_manager_app_detached (sm) && !segment_manager_has_fifos (sm)) { - segment_manager_del (sm); + segment_manager_free (sm); } } else @@ -667,8 +692,8 @@ segment_manager_evt_q_expected_size (u32 q_len) * Must be called with lock held */ svm_msg_q_t * -segment_manager_alloc_queue (svm_fifo_segment_private_t * segment, - segment_manager_properties_t * props) +segment_manager_alloc_queue (fifo_segment_t * segment, + segment_manager_props_t * props) { u32 fifo_evt_size, session_evt_size = 256, notif_q_size; svm_msg_q_cfg_t _cfg, *cfg = &_cfg; @@ -700,13 +725,19 @@ segment_manager_alloc_queue (svm_fifo_segment_private_t * segment, return q; } +svm_msg_q_t * +segment_manager_event_queue (segment_manager_t * sm) +{ + return sm->event_queue; +} + /** * Frees shm queue allocated in the first segment */ void segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q) { - svm_fifo_segment_private_t *segment; + fifo_segment_t *segment; ssvm_shared_header_t *sh; void *oldheap; @@ -727,21 +758,25 @@ segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q) void segment_manager_main_init (segment_manager_main_init_args_t * a) { - segment_manager_main_t *sm = &segment_manager_main; + segment_manager_main_t *sm = &sm_main; clib_valloc_chunk_t _ip, *ip = &_ip; ip->baseva = a->baseva; ip->size = a->size; clib_valloc_init (&sm->va_allocator, ip, 1 /* lock */ ); + + sm->default_fifo_size = 1 << 12; + sm->default_segment_size = 1 << 20; + sm->default_app_mq_size = 128; } static clib_error_t * segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { - segment_manager_main_t *smm = &segment_manager_main; - svm_fifo_segment_private_t *seg; + segment_manager_main_t *smm = &sm_main; + fifo_segment_t *seg; segment_manager_t *sm; u8 show_segments = 0, verbose = 0; char *address; @@ -782,15 +817,15 @@ segment_manager_show_fn (vlib_main_t * vm, unformat_input_t * input, /* *INDENT-OFF* */ pool_foreach (sm, smm->segment_managers, ({ segment_manager_foreach_segment_w_lock (seg, sm, ({ - svm_fifo_segment_info (seg, &address, &size); - active_fifos = svm_fifo_segment_num_fifos (seg); - free_fifos = svm_fifo_segment_num_free_fifos (seg, ~0 /* size */); + fifo_segment_info (seg, &address, &size); + active_fifos = fifo_segment_num_fifos (seg); + free_fifos = fifo_segment_num_free_fifos (seg, ~0 /* size */); vlib_cli_output (vm, "%-15v%15U%15llu%15u%15u%15llx", - ssvm_name (&seg->ssvm), format_svm_fifo_segment_type, + ssvm_name (&seg->ssvm), format_fifo_segment_type, seg, size >> 20ULL, active_fifos, free_fifos, address); if (verbose) - vlib_cli_output (vm, "%U", format_svm_fifo_segment, seg, verbose); + vlib_cli_output (vm, "%U", format_fifo_segment, seg, verbose); })); })); /* *INDENT-ON* */ @@ -808,6 +843,66 @@ VLIB_CLI_COMMAND (segment_manager_show_command, static) = }; /* *INDENT-ON* */ +void +segment_manager_format_sessions (segment_manager_t * sm, int verbose) +{ + fifo_segment_t *fifo_segment; + vlib_main_t *vm = vlib_get_main (); + app_worker_t *app_wrk; + const u8 *app_name; + u8 *s = 0; + + if (!sm) + { + if (verbose) + vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App", + "API Client", "SegManager"); + else + vlib_cli_output (vm, "%-40s%-20s", "Connection", "App"); + return; + } + + app_wrk = app_worker_get (sm->app_wrk_index); + app_name = application_name_from_index (app_wrk->app_index); + + clib_rwlock_reader_lock (&sm->segments_rwlock); + + /* *INDENT-OFF* */ + pool_foreach (fifo_segment, sm->segments, ({ + svm_fifo_t *fifo; + u8 *str; + + fifo = fifo_segment_get_fifo_list (fifo_segment); + while (fifo) + { + u32 session_index, thread_index; + session_t *session; + + session_index = fifo->master_session_index; + thread_index = fifo->master_thread_index; + + session = session_get (session_index, thread_index); + str = format (0, "%U", format_session, session, verbose); + + if (verbose) + s = format (s, "%-40s%-20s%-15u%-10u", str, app_name, + app_wrk->api_client_index, app_wrk->connects_seg_manager); + else + s = format (s, "%-40s%-20s", str, app_name); + + vlib_cli_output (vm, "%v", s); + vec_reset_length (s); + vec_free (str); + + fifo = fifo->next; + } + vec_free (s); + })); + /* *INDENT-ON* */ + + clib_rwlock_reader_unlock (&sm->segments_rwlock); +} + /* * fd.io coding-style-patch-verification: ON * diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h index 2b6f43feba7..4f30b7a8d2c 100644 --- a/src/vnet/session/segment_manager.h +++ b/src/vnet/session/segment_manager.h @@ -15,14 +15,12 @@ #ifndef SRC_VNET_SESSION_SEGMENT_MANAGER_H_ #define SRC_VNET_SESSION_SEGMENT_MANAGER_H_ -#include -#include #include -#include #include #include +#include -typedef struct _segment_manager_properties +typedef struct _segment_manager_props { u32 rx_fifo_size; /**< receive fifo size */ u32 tx_fifo_size; /**< transmit fifo size */ @@ -35,12 +33,12 @@ typedef struct _segment_manager_properties u8 reserved:6; /**< reserved flags */ ssvm_segment_type_t segment_type; /**< seg type: if set to SSVM_N_TYPES, private segments are used */ -} segment_manager_properties_t; +} segment_manager_props_t; typedef struct _segment_manager { /** Pool of segments allocated by this manager */ - svm_fifo_segment_private_t *segments; + fifo_segment_t *segments; /** rwlock that protects the segments pool */ clib_rwlock_t segments_rwlock; @@ -61,25 +59,6 @@ typedef struct _segment_manager svm_msg_q_t *event_queue; } segment_manager_t; -#define segment_manager_foreach_segment_w_lock(VAR, SM, BODY) \ -do { \ - clib_rwlock_reader_lock (&(SM)->segments_rwlock); \ - pool_foreach((VAR), ((SM)->segments), (BODY)); \ - clib_rwlock_reader_unlock (&(SM)->segments_rwlock); \ -} while (0) - -typedef struct segment_manager_main_ -{ - /** Pool of segment managers */ - segment_manager_t *segment_managers; - - /** Virtual address allocator */ - clib_valloc_main_t va_allocator; - -} segment_manager_main_t; - -extern segment_manager_main_t segment_manager_main; - typedef struct segment_manager_main_init_args_ { u64 baseva; @@ -88,86 +67,78 @@ typedef struct segment_manager_main_init_args_ #define SEGMENT_MANAGER_INVALID_APP_INDEX ((u32) ~0) -/** Pool of segment managers */ -extern segment_manager_t *segment_managers; - -always_inline segment_manager_t * -segment_manager_get (u32 index) -{ - return pool_elt_at_index (segment_manager_main.segment_managers, index); -} - -always_inline segment_manager_t * -segment_manager_get_if_valid (u32 index) -{ - if (pool_is_free_index (segment_manager_main.segment_managers, index)) - return 0; - return pool_elt_at_index (segment_manager_main.segment_managers, index); -} - -always_inline u32 -segment_manager_index (segment_manager_t * sm) -{ - return sm - segment_manager_main.segment_managers; -} - -always_inline svm_msg_q_t * -segment_manager_event_queue (segment_manager_t * sm) -{ - return sm->event_queue; -} - -always_inline u64 -segment_manager_make_segment_handle (u32 segment_manager_index, - u32 segment_index) -{ - return (((u64) segment_manager_index << 32) | segment_index); -} - -u64 segment_manager_segment_handle (segment_manager_t * sm, - svm_fifo_segment_private_t * segment); - -segment_manager_t *segment_manager_new (); +segment_manager_t *segment_manager_alloc (void); int segment_manager_init (segment_manager_t * sm, u32 first_seg_size, u32 prealloc_fifo_pairs); -svm_fifo_segment_private_t *segment_manager_get_segment (segment_manager_t *, - u32 segment_index); -svm_fifo_segment_private_t *segment_manager_get_segment_w_handle (u64); -svm_fifo_segment_private_t - * segment_manager_get_segment_w_lock (segment_manager_t * sm, - u32 segment_index); +/** + * Cleanup segment manager + * + * @param sm segment manager to be freed + */ +void segment_manager_free (segment_manager_t * sm); + +/** + * Initiate segment manager cleanup + * + * @param sm segment manager to be freed + */ +void segment_manager_init_free (segment_manager_t * sm); +segment_manager_t *segment_manager_get (u32 index); +segment_manager_t *segment_manager_get_if_valid (u32 index); +u32 segment_manager_index (segment_manager_t * sm); + int segment_manager_add_segment (segment_manager_t * sm, u32 segment_size); void segment_manager_del_segment (segment_manager_t * sm, - svm_fifo_segment_private_t * fs); + fifo_segment_t * fs); +fifo_segment_t *segment_manager_get_segment (segment_manager_t * sm, + u32 segment_index); +fifo_segment_t *segment_manager_get_segment_w_handle (u64 sh); +fifo_segment_t *segment_manager_get_segment_w_lock (segment_manager_t *, + u32 segment_index); +int segment_manager_add_first_segment (segment_manager_t * sm, + u32 segment_size); +u64 segment_manager_make_segment_handle (u32 segment_manager_index, + u32 segment_index); +u64 segment_manager_segment_handle (segment_manager_t * sm, + fifo_segment_t * segment); void segment_manager_segment_reader_unlock (segment_manager_t * sm); void segment_manager_segment_writer_unlock (segment_manager_t * sm); -int segment_manager_add_first_segment (segment_manager_t * sm, - u32 segment_size); -void segment_manager_del_sessions (segment_manager_t * sm); -void segment_manager_del (segment_manager_t * sm); -void segment_manager_init_del (segment_manager_t * sm); -u8 segment_manager_has_fifos (segment_manager_t * sm); int segment_manager_alloc_session_fifos (segment_manager_t * sm, - svm_fifo_t ** server_rx_fifo, - svm_fifo_t ** server_tx_fifo); -int segment_manager_try_alloc_fifos (svm_fifo_segment_private_t * fs, + svm_fifo_t ** rx_fifo, + svm_fifo_t ** tx_fifo); +int segment_manager_try_alloc_fifos (fifo_segment_t * fs, u32 rx_fifo_size, u32 tx_fifo_size, svm_fifo_t ** rx_fifo, svm_fifo_t ** tx_fifo); void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo); -u32 segment_manager_evt_q_expected_size (u32 q_size); -svm_msg_q_t *segment_manager_alloc_queue (svm_fifo_segment_private_t * fs, - segment_manager_properties_t * - props); +u8 segment_manager_has_fifos (segment_manager_t * sm); + +svm_msg_q_t *segment_manager_alloc_queue (fifo_segment_t * fs, + segment_manager_props_t * props); void segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q); +svm_msg_q_t *segment_manager_event_queue (segment_manager_t * sm); +u32 segment_manager_evt_q_expected_size (u32 q_size); + void segment_manager_app_detach (segment_manager_t * sm); +/** + * Cleanup segment manager sessions + * + * Initiates disconnects for all sessions 'owned' by a segment manager by + * leveraging the backpointers that fifos keep. + * + * @param sm segment manager whose sessions are to be disconnected + */ +void segment_manager_del_sessions (segment_manager_t * sm); +void segment_manager_format_sessions (segment_manager_t * sm, int verbose); + void segment_manager_main_init (segment_manager_main_init_args_t * a); -segment_manager_properties_t - * segment_manager_properties_init (segment_manager_properties_t * sm); + +segment_manager_props_t *segment_manager_props_init (segment_manager_props_t * + sm); #endif /* SRC_VNET_SESSION_SEGMENT_MANAGER_H_ */ /* diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c index 0a7781f2876..83af125946e 100755 --- a/src/vnet/session/session_api.c +++ b/src/vnet/session/session_api.c @@ -83,8 +83,8 @@ send_add_segment_callback (u32 api_client_index, u64 segment_handle) { int fds[SESSION_N_FD_TYPE], n_fds = 0; vl_api_map_another_segment_t *mp; - svm_fifo_segment_private_t *fs; vl_api_registration_t *reg; + fifo_segment_t *fs; ssvm_private_t *sp; u8 fd_flags = 0; -- cgit 1.2.3-korg