diff options
Diffstat (limited to 'src/vnet/devices/ssvm')
| -rw-r--r-- | src/vnet/devices/ssvm/node.c | 345 | ||||
| -rw-r--r-- | src/vnet/devices/ssvm/ssvm_eth.c | 491 | ||||
| -rw-r--r-- | src/vnet/devices/ssvm/ssvm_eth.h | 140 |
3 files changed, 0 insertions, 976 deletions
diff --git a/src/vnet/devices/ssvm/node.c b/src/vnet/devices/ssvm/node.c deleted file mode 100644 index 344b357662c..00000000000 --- a/src/vnet/devices/ssvm/node.c +++ /dev/null @@ -1,345 +0,0 @@ -/* - * Copyright (c) 2015 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 "ssvm_eth.h" - -vlib_node_registration_t ssvm_eth_input_node; - -typedef struct -{ - u32 next_index; - u32 sw_if_index; -} ssvm_eth_input_trace_t; - -/* packet trace format function */ -static u8 * -format_ssvm_eth_input_trace (u8 * s, va_list * args) -{ - CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); - CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); - ssvm_eth_input_trace_t *t = va_arg (*args, ssvm_eth_input_trace_t *); - - s = format (s, "SSVM_ETH_INPUT: sw_if_index %d, next index %d", - t->sw_if_index, t->next_index); - return s; -} - -vlib_node_registration_t ssvm_eth_input_node; - -#define foreach_ssvm_eth_input_error \ -_(NO_BUFFERS, "Rx packet drops (no buffers)") - -typedef enum -{ -#define _(sym,str) SSVM_ETH_INPUT_ERROR_##sym, - foreach_ssvm_eth_input_error -#undef _ - SSVM_ETH_INPUT_N_ERROR, -} ssvm_eth_input_error_t; - -static char *ssvm_eth_input_error_strings[] = { -#define _(sym,string) string, - foreach_ssvm_eth_input_error -#undef _ -}; - -typedef enum -{ - SSVM_ETH_INPUT_NEXT_DROP, - SSVM_ETH_INPUT_NEXT_ETHERNET_INPUT, - SSVM_ETH_INPUT_NEXT_IP4_INPUT, - SSVM_ETH_INPUT_NEXT_IP6_INPUT, - SSVM_ETH_INPUT_NEXT_MPLS_INPUT, - SSVM_ETH_INPUT_N_NEXT, -} ssvm_eth_input_next_t; - -static inline uword -ssvm_eth_device_input (ssvm_eth_main_t * em, - ssvm_private_t * intfc, vlib_node_runtime_t * node) -{ - ssvm_shared_header_t *sh = intfc->sh; - vlib_main_t *vm = em->vlib_main; - svm_queue_t *q; - ssvm_eth_queue_elt_t *elt, *elts; - u32 elt_index; - u32 my_pid = intfc->my_pid; - int rx_queue_index; - u32 n_to_alloc = VLIB_FRAME_SIZE * 2; - u32 n_allocated, n_present_in_cache; - u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; - vlib_buffer_free_list_t *fl; - u32 n_left_to_next, *to_next; - u32 next0; - u32 n_buffers; - u32 n_available; - u32 bi0, saved_bi0; - vlib_buffer_t *b0, *prev; - u32 saved_cache_size = 0; - ethernet_header_t *eh0; - u16 type0; - u32 n_rx_bytes = 0, l3_offset0; - u32 thread_index = vlib_get_thread_index (); - u32 trace_cnt __attribute__ ((unused)) = vlib_get_trace_count (vm, node); - volatile u32 *lock; - u32 *elt_indices; - uword n_trace = vlib_get_trace_count (vm, node); - - /* Either side down? buh-bye... */ - if (pointer_to_uword (sh->opaque[MASTER_ADMIN_STATE_INDEX]) == 0 || - pointer_to_uword (sh->opaque[SLAVE_ADMIN_STATE_INDEX]) == 0) - return 0; - - if (intfc->i_am_master) - q = (svm_queue_t *) (sh->opaque[TO_MASTER_Q_INDEX]); - else - q = (svm_queue_t *) (sh->opaque[TO_SLAVE_Q_INDEX]); - - /* Nothing to do? */ - if (q->cursize == 0) - return 0; - - fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); - - vec_reset_length (intfc->rx_queue); - - lock = (u32 *) q; - while (__sync_lock_test_and_set (lock, 1)) - ; - while (q->cursize > 0) - { - svm_queue_sub_raw (q, (u8 *) & elt_index); - ASSERT (elt_index < 2048); - vec_add1 (intfc->rx_queue, elt_index); - } - CLIB_MEMORY_BARRIER (); - *lock = 0; - - n_present_in_cache = vec_len (em->buffer_cache); - - if (vec_len (em->buffer_cache) < vec_len (intfc->rx_queue) * 2) - { - vec_validate (em->buffer_cache, - n_to_alloc + vec_len (em->buffer_cache) - 1); - n_allocated = - vlib_buffer_alloc (vm, &em->buffer_cache[n_present_in_cache], - n_to_alloc); - - n_present_in_cache += n_allocated; - _vec_len (em->buffer_cache) = n_present_in_cache; - } - - elts = (ssvm_eth_queue_elt_t *) (sh->opaque[CHUNK_POOL_INDEX]); - - n_buffers = vec_len (intfc->rx_queue); - rx_queue_index = 0; - - while (n_buffers > 0) - { - vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); - - while (n_buffers > 0 && n_left_to_next > 0) - { - elt = elts + intfc->rx_queue[rx_queue_index]; - - saved_cache_size = n_present_in_cache; - if (PREDICT_FALSE (saved_cache_size == 0)) - { - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - goto out; - } - saved_bi0 = bi0 = em->buffer_cache[--n_present_in_cache]; - b0 = vlib_get_buffer (vm, bi0); - prev = 0; - - while (1) - { - vlib_buffer_init_for_free_list (b0, fl); - - b0->current_data = elt->current_data_hint; - b0->current_length = elt->length_this_buffer; - b0->total_length_not_including_first_buffer = - elt->total_length_not_including_first_buffer; - - clib_memcpy (b0->data + b0->current_data, elt->data, - b0->current_length); - - if (PREDICT_FALSE (prev != 0)) - prev->next_buffer = bi0; - - if (PREDICT_FALSE (elt->flags & SSVM_BUFFER_NEXT_PRESENT)) - { - prev = b0; - if (PREDICT_FALSE (n_present_in_cache == 0)) - { - vlib_put_next_frame (vm, node, next_index, - n_left_to_next); - goto out; - } - bi0 = em->buffer_cache[--n_present_in_cache]; - b0 = vlib_get_buffer (vm, bi0); - } - else - break; - } - - saved_cache_size = n_present_in_cache; - - to_next[0] = saved_bi0; - to_next++; - n_left_to_next--; - - b0 = vlib_get_buffer (vm, saved_bi0); - eh0 = vlib_buffer_get_current (b0); - - type0 = clib_net_to_host_u16 (eh0->type); - - next0 = SSVM_ETH_INPUT_NEXT_ETHERNET_INPUT; - - if (type0 == ETHERNET_TYPE_IP4) - next0 = SSVM_ETH_INPUT_NEXT_IP4_INPUT; - else if (type0 == ETHERNET_TYPE_IP6) - next0 = SSVM_ETH_INPUT_NEXT_IP6_INPUT; - else if (type0 == ETHERNET_TYPE_MPLS) - next0 = SSVM_ETH_INPUT_NEXT_MPLS_INPUT; - - l3_offset0 = ((next0 == SSVM_ETH_INPUT_NEXT_IP4_INPUT || - next0 == SSVM_ETH_INPUT_NEXT_IP6_INPUT || - next0 == SSVM_ETH_INPUT_NEXT_MPLS_INPUT) ? - sizeof (ethernet_header_t) : 0); - - n_rx_bytes += b0->current_length - + b0->total_length_not_including_first_buffer; - - b0->current_data += l3_offset0; - b0->current_length -= l3_offset0; - b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; - - vnet_buffer (b0)->sw_if_index[VLIB_RX] = intfc->vlib_hw_if_index; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; - - /* - * Turn this on if you run into - * "bad monkey" contexts, and you want to know exactly - * which nodes they've visited... See main.c... - */ - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); - - if (PREDICT_FALSE (n_trace > 0)) - { - ssvm_eth_input_trace_t *tr; - - vlib_trace_buffer (vm, node, next0, b0, /* follow_chain */ 1); - vlib_set_trace_count (vm, node, --n_trace); - - tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); - - tr->next_index = next0; - tr->sw_if_index = intfc->vlib_hw_if_index; - } - - vlib_validate_buffer_enqueue_x1 (vm, node, next_index, - to_next, n_left_to_next, - bi0, next0); - n_buffers--; - rx_queue_index++; - } - - vlib_put_next_frame (vm, node, next_index, n_left_to_next); - } - -out: - if (em->buffer_cache) - _vec_len (em->buffer_cache) = saved_cache_size; - else - ASSERT (saved_cache_size == 0); - - ssvm_lock (sh, my_pid, 2); - - ASSERT (vec_len (intfc->rx_queue) > 0); - - n_available = (u32) pointer_to_uword (sh->opaque[CHUNK_POOL_NFREE]); - elt_indices = (u32 *) (sh->opaque[CHUNK_POOL_FREELIST_INDEX]); - - clib_memcpy (&elt_indices[n_available], intfc->rx_queue, - vec_len (intfc->rx_queue) * sizeof (u32)); - - n_available += vec_len (intfc->rx_queue); - sh->opaque[CHUNK_POOL_NFREE] = uword_to_pointer (n_available, void *); - - ssvm_unlock (sh); - - vlib_error_count (vm, node->node_index, SSVM_ETH_INPUT_ERROR_NO_BUFFERS, - n_buffers); - - vlib_increment_combined_counter - (vnet_get_main ()->interface_main.combined_sw_if_counters - + VNET_INTERFACE_COUNTER_RX, thread_index, - intfc->vlib_hw_if_index, rx_queue_index, n_rx_bytes); - - vnet_device_increment_rx_packets (thread_index, rx_queue_index); - - return rx_queue_index; -} - -static uword -ssvm_eth_input_node_fn (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * frame) -{ - ssvm_eth_main_t *em = &ssvm_eth_main; - ssvm_private_t *intfc; - uword n_rx_packets = 0; - - vec_foreach (intfc, em->intfcs) - { - n_rx_packets += ssvm_eth_device_input (em, intfc, node); - } - - return n_rx_packets; -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (ssvm_eth_input_node) = { - .function = ssvm_eth_input_node_fn, - .name = "ssvm_eth_input", - .vector_size = sizeof (u32), - .format_trace = format_ssvm_eth_input_trace, - .type = VLIB_NODE_TYPE_INPUT, - .state = VLIB_NODE_STATE_DISABLED, - - .n_errors = ARRAY_LEN(ssvm_eth_input_error_strings), - .error_strings = ssvm_eth_input_error_strings, - - .n_next_nodes = SSVM_ETH_INPUT_N_NEXT, - - /* edit / add dispositions here */ - .next_nodes = { - [SSVM_ETH_INPUT_NEXT_DROP] = "error-drop", - [SSVM_ETH_INPUT_NEXT_ETHERNET_INPUT] = "ethernet-input", - [SSVM_ETH_INPUT_NEXT_IP4_INPUT] = "ip4-input", - [SSVM_ETH_INPUT_NEXT_IP6_INPUT] = "ip6-input", - [SSVM_ETH_INPUT_NEXT_MPLS_INPUT] = "mpls-input", - }, -}; - -VLIB_NODE_FUNCTION_MULTIARCH (ssvm_eth_input_node, ssvm_eth_input_node_fn) -/* *INDENT-ON* */ - - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/devices/ssvm/ssvm_eth.c b/src/vnet/devices/ssvm/ssvm_eth.c deleted file mode 100644 index 8a0cebe29d4..00000000000 --- a/src/vnet/devices/ssvm/ssvm_eth.c +++ /dev/null @@ -1,491 +0,0 @@ -/* - * Copyright (c) 2015 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 "ssvm_eth.h" - -ssvm_eth_main_t ssvm_eth_main; - -#define foreach_ssvm_eth_tx_func_error \ -_(RING_FULL, "Tx packet drops (ring full)") \ -_(NO_BUFFERS, "Tx packet drops (no buffers)") \ -_(ADMIN_DOWN, "Tx packet drops (admin down)") - -typedef enum -{ -#define _(f,s) SSVM_ETH_TX_ERROR_##f, - foreach_ssvm_eth_tx_func_error -#undef _ - SSVM_ETH_TX_N_ERROR, -} ssvm_eth_tx_func_error_t; - -static u32 ssvm_eth_flag_change (vnet_main_t * vnm, - vnet_hw_interface_t * hi, u32 flags); - -int -ssvm_eth_create (ssvm_eth_main_t * em, u8 * name, int is_master) -{ - ssvm_private_t *intfc; - void *oldheap; - clib_error_t *e; - svm_queue_t *q; - ssvm_shared_header_t *sh; - ssvm_eth_queue_elt_t *elts; - u32 *elt_indices; - u8 enet_addr[6]; - int i, rv; - - vec_add2 (em->intfcs, intfc, 1); - - intfc->ssvm_size = em->segment_size; - intfc->i_am_master = 1; - intfc->name = name; - intfc->my_pid = getpid (); - if (is_master == 0) - { - rv = ssvm_slave_init (intfc, 20 /* timeout in seconds */ ); - if (rv < 0) - return rv; - goto create_vnet_interface; - } - - intfc->requested_va = em->next_base_va; - em->next_base_va += em->segment_size; - rv = ssvm_master_init (intfc, intfc - em->intfcs /* master index */ ); - - if (rv < 0) - return rv; - - /* OK, segment created, set up queues and so forth. */ - - sh = intfc->sh; - oldheap = ssvm_push_heap (sh); - - q = svm_queue_init (em->queue_elts, sizeof (u32), - 0 /* consumer pid not interesting */ , - 0 /* signal not sent */ ); - sh->opaque[TO_MASTER_Q_INDEX] = (void *) q; - q = svm_queue_init (em->queue_elts, sizeof (u32), - 0 /* consumer pid not interesting */ , - 0 /* signal not sent */ ); - sh->opaque[TO_SLAVE_Q_INDEX] = (void *) q; - - /* - * Preallocate the requested number of buffer chunks - * There must be a better way to do this, etc. - * Add some slop to avoid pool reallocation, which will not go well - */ - elts = 0; - elt_indices = 0; - - vec_validate_aligned (elts, em->nbuffers - 1, CLIB_CACHE_LINE_BYTES); - vec_validate_aligned (elt_indices, em->nbuffers - 1, CLIB_CACHE_LINE_BYTES); - - for (i = 0; i < em->nbuffers; i++) - elt_indices[i] = i; - - sh->opaque[CHUNK_POOL_INDEX] = (void *) elts; - sh->opaque[CHUNK_POOL_FREELIST_INDEX] = (void *) elt_indices; - sh->opaque[CHUNK_POOL_NFREE] = (void *) (uword) em->nbuffers; - - ssvm_pop_heap (oldheap); - -create_vnet_interface: - - sh = intfc->sh; - - memset (enet_addr, 0, sizeof (enet_addr)); - enet_addr[0] = 2; - enet_addr[1] = 0xFE; - enet_addr[2] = is_master; - enet_addr[5] = sh->master_index; - - e = ethernet_register_interface - (em->vnet_main, ssvm_eth_device_class.index, intfc - em->intfcs, - /* ethernet address */ enet_addr, - &intfc->vlib_hw_if_index, ssvm_eth_flag_change); - - if (e) - { - clib_error_report (e); - /* $$$$ unmap offending region? */ - return VNET_API_ERROR_INVALID_INTERFACE; - } - - /* Declare link up */ - vnet_hw_interface_set_flags (em->vnet_main, intfc->vlib_hw_if_index, - VNET_HW_INTERFACE_FLAG_LINK_UP); - - /* Let the games begin... */ - if (is_master) - sh->ready = 1; - return 0; -} - -static clib_error_t * -ssvm_config (vlib_main_t * vm, unformat_input_t * input) -{ - u8 *name; - int is_master = 1; - int i, rv; - ssvm_eth_main_t *em = &ssvm_eth_main; - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "base-va %llx", &em->next_base_va)) - ; - else if (unformat (input, "segment-size %lld", &em->segment_size)) - em->segment_size = 1ULL << (max_log2 (em->segment_size)); - else if (unformat (input, "nbuffers %lld", &em->nbuffers)) - ; - else if (unformat (input, "queue-elts %lld", &em->queue_elts)) - ; - else if (unformat (input, "slave")) - is_master = 0; - else if (unformat (input, "%s", &name)) - vec_add1 (em->names, name); - else - break; - } - - /* No configured instances, we're done... */ - if (vec_len (em->names) == 0) - return 0; - - for (i = 0; i < vec_len (em->names); i++) - { - rv = ssvm_eth_create (em, em->names[i], is_master); - if (rv < 0) - return clib_error_return (0, "ssvm_eth_create '%s' failed, error %d", - em->names[i], rv); - } - - vlib_node_set_state (vm, ssvm_eth_input_node.index, - VLIB_NODE_STATE_POLLING); - - return 0; -} - -VLIB_CONFIG_FUNCTION (ssvm_config, "ssvm_eth"); - - -static clib_error_t * -ssvm_eth_init (vlib_main_t * vm) -{ - ssvm_eth_main_t *em = &ssvm_eth_main; - - if (((sizeof (ssvm_eth_queue_elt_t) / CLIB_CACHE_LINE_BYTES) - * CLIB_CACHE_LINE_BYTES) != sizeof (ssvm_eth_queue_elt_t)) - clib_warning ("ssvm_eth_queue_elt_t size %d not a multiple of %d", - sizeof (ssvm_eth_queue_elt_t), CLIB_CACHE_LINE_BYTES); - - em->vlib_main = vm; - em->vnet_main = vnet_get_main (); - em->elog_main = &vm->elog_main; - - /* default config param values... */ - - em->next_base_va = 0x600000000ULL; - /* - * Allocate 2 full superframes in each dir (256 x 2 x 2 x 2048 bytes), - * 2mb; double that so we have plenty of space... 4mb - */ - em->segment_size = 8 << 20; - em->nbuffers = 1024; - em->queue_elts = 512; - return 0; -} - -VLIB_INIT_FUNCTION (ssvm_eth_init); - -static char *ssvm_eth_tx_func_error_strings[] = { -#define _(n,s) s, - foreach_ssvm_eth_tx_func_error -#undef _ -}; - -static u8 * -format_ssvm_eth_device_name (u8 * s, va_list * args) -{ - u32 i = va_arg (*args, u32); - - s = format (s, "ssvmEthernet%d", i); - return s; -} - -static u8 * -format_ssvm_eth_device (u8 * s, va_list * args) -{ - s = format (s, "SSVM Ethernet"); - return s; -} - -static u8 * -format_ssvm_eth_tx_trace (u8 * s, va_list * args) -{ - s = format (s, "Unimplemented..."); - return s; -} - - -static uword -ssvm_eth_interface_tx (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * f) -{ - ssvm_eth_main_t *em = &ssvm_eth_main; - vnet_interface_output_runtime_t *rd = (void *) node->runtime_data; - ssvm_private_t *intfc = vec_elt_at_index (em->intfcs, rd->dev_instance); - ssvm_shared_header_t *sh = intfc->sh; - svm_queue_t *q; - u32 *from; - u32 n_left; - ssvm_eth_queue_elt_t *elts, *elt, *prev_elt; - u32 my_pid = intfc->my_pid; - vlib_buffer_t *b0; - u32 bi0; - u32 size_this_buffer; - u32 chunks_this_buffer; - u8 i_am_master = intfc->i_am_master; - u32 elt_index; - int is_ring_full, interface_down; - int i; - volatile u32 *queue_lock; - u32 n_to_alloc = VLIB_FRAME_SIZE; - u32 n_allocated, n_present_in_cache, n_available; - u32 *elt_indices; - - if (i_am_master) - q = (svm_queue_t *) sh->opaque[TO_SLAVE_Q_INDEX]; - else - q = (svm_queue_t *) sh->opaque[TO_MASTER_Q_INDEX]; - - queue_lock = (u32 *) q; - - from = vlib_frame_vector_args (f); - n_left = f->n_vectors; - is_ring_full = 0; - interface_down = 0; - - n_present_in_cache = vec_len (em->chunk_cache); - - /* admin / link up/down check */ - if (sh->opaque[MASTER_ADMIN_STATE_INDEX] == 0 || - sh->opaque[SLAVE_ADMIN_STATE_INDEX] == 0) - { - interface_down = 1; - goto out; - } - - ssvm_lock (sh, my_pid, 1); - - elts = (ssvm_eth_queue_elt_t *) (sh->opaque[CHUNK_POOL_INDEX]); - elt_indices = (u32 *) (sh->opaque[CHUNK_POOL_FREELIST_INDEX]); - n_available = (u32) pointer_to_uword (sh->opaque[CHUNK_POOL_NFREE]); - - if (n_present_in_cache < n_left * 2) - { - vec_validate (em->chunk_cache, n_to_alloc + n_present_in_cache - 1); - - n_allocated = n_to_alloc < n_available ? n_to_alloc : n_available; - - if (PREDICT_TRUE (n_allocated > 0)) - { - clib_memcpy (&em->chunk_cache[n_present_in_cache], - &elt_indices[n_available - n_allocated], - sizeof (u32) * n_allocated); - } - - n_present_in_cache += n_allocated; - n_available -= n_allocated; - sh->opaque[CHUNK_POOL_NFREE] = uword_to_pointer (n_available, void *); - _vec_len (em->chunk_cache) = n_present_in_cache; - } - - ssvm_unlock (sh); - - while (n_left) - { - bi0 = from[0]; - b0 = vlib_get_buffer (vm, bi0); - - size_this_buffer = vlib_buffer_length_in_chain (vm, b0); - chunks_this_buffer = (size_this_buffer + (SSVM_BUFFER_SIZE - 1)) - / SSVM_BUFFER_SIZE; - - /* If we're not going to be able to enqueue the buffer, tail drop. */ - if (q->cursize >= q->maxsize) - { - is_ring_full = 1; - break; - } - - prev_elt = 0; - elt_index = ~0; - for (i = 0; i < chunks_this_buffer; i++) - { - if (PREDICT_FALSE (n_present_in_cache == 0)) - goto out; - - elt_index = em->chunk_cache[--n_present_in_cache]; - elt = elts + elt_index; - - elt->type = SSVM_PACKET_TYPE; - elt->flags = 0; - elt->total_length_not_including_first_buffer = - b0->total_length_not_including_first_buffer; - elt->length_this_buffer = b0->current_length; - elt->current_data_hint = b0->current_data; - elt->owner = !i_am_master; - elt->tag = 1; - - clib_memcpy (elt->data, b0->data + b0->current_data, - b0->current_length); - - if (PREDICT_FALSE (prev_elt != 0)) - prev_elt->next_index = elt - elts; - - if (PREDICT_FALSE (i < (chunks_this_buffer - 1))) - { - elt->flags = SSVM_BUFFER_NEXT_PRESENT; - ASSERT (b0->flags & VLIB_BUFFER_NEXT_PRESENT); - b0 = vlib_get_buffer (vm, b0->next_buffer); - } - prev_elt = elt; - } - - while (__sync_lock_test_and_set (queue_lock, 1)) - ; - - svm_queue_add_raw (q, (u8 *) & elt_index); - CLIB_MEMORY_BARRIER (); - *queue_lock = 0; - - from++; - n_left--; - } - -out: - if (PREDICT_FALSE (n_left)) - { - if (is_ring_full) - vlib_error_count (vm, node->node_index, SSVM_ETH_TX_ERROR_RING_FULL, - n_left); - else if (interface_down) - vlib_error_count (vm, node->node_index, SSVM_ETH_TX_ERROR_ADMIN_DOWN, - n_left); - else - vlib_error_count (vm, node->node_index, SSVM_ETH_TX_ERROR_NO_BUFFERS, - n_left); - - vlib_buffer_free (vm, from, n_left); - } - else - vlib_buffer_free (vm, vlib_frame_vector_args (f), f->n_vectors); - - if (PREDICT_TRUE (vec_len (em->chunk_cache))) - _vec_len (em->chunk_cache) = n_present_in_cache; - - return f->n_vectors; -} - -static void -ssvm_eth_clear_hw_interface_counters (u32 instance) -{ - /* Nothing for now */ -} - -static clib_error_t * -ssvm_eth_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, - u32 flags) -{ - vnet_hw_interface_t *hif = vnet_get_hw_interface (vnm, hw_if_index); - uword is_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0; - ssvm_eth_main_t *em = &ssvm_eth_main; - ssvm_private_t *intfc = vec_elt_at_index (em->intfcs, hif->dev_instance); - ssvm_shared_header_t *sh; - - /* publish link-state in shared-memory, to discourage buffer-wasting */ - sh = intfc->sh; - if (intfc->i_am_master) - sh->opaque[MASTER_ADMIN_STATE_INDEX] = (void *) is_up; - else - sh->opaque[SLAVE_ADMIN_STATE_INDEX] = (void *) is_up; - - return 0; -} - -static clib_error_t * -ssvm_eth_subif_add_del_function (vnet_main_t * vnm, - u32 hw_if_index, - struct vnet_sw_interface_t *st, int is_add) -{ - /* Nothing for now */ - return 0; -} - -/* - * Dynamically redirect all pkts from a specific interface - * to the specified node - */ -static void -ssvm_eth_set_interface_next_node (vnet_main_t * vnm, u32 hw_if_index, - u32 node_index) -{ - ssvm_eth_main_t *em = &ssvm_eth_main; - vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index); - ssvm_private_t *intfc = pool_elt_at_index (em->intfcs, hw->dev_instance); - - /* Shut off redirection */ - if (node_index == ~0) - { - intfc->per_interface_next_index = node_index; - return; - } - - intfc->per_interface_next_index = - vlib_node_add_next (em->vlib_main, ssvm_eth_input_node.index, node_index); -} - -static u32 -ssvm_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags) -{ - /* nothing for now */ - return 0; -} - -/* *INDENT-OFF* */ -VNET_DEVICE_CLASS (ssvm_eth_device_class) = { - .name = "ssvm-eth", - .tx_function = ssvm_eth_interface_tx, - .tx_function_n_errors = SSVM_ETH_TX_N_ERROR, - .tx_function_error_strings = ssvm_eth_tx_func_error_strings, - .format_device_name = format_ssvm_eth_device_name, - .format_device = format_ssvm_eth_device, - .format_tx_trace = format_ssvm_eth_tx_trace, - .clear_counters = ssvm_eth_clear_hw_interface_counters, - .admin_up_down_function = ssvm_eth_interface_admin_up_down, - .subif_add_del_function = ssvm_eth_subif_add_del_function, - .rx_redirect_to_node = ssvm_eth_set_interface_next_node, -}; - -VLIB_DEVICE_TX_FUNCTION_MULTIARCH (ssvm_eth_device_class, - ssvm_eth_interface_tx) -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/vnet/devices/ssvm/ssvm_eth.h b/src/vnet/devices/ssvm/ssvm_eth.h deleted file mode 100644 index a506b4b7312..00000000000 --- a/src/vnet/devices/ssvm/ssvm_eth.h +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (c) 2015 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_eth_h__ -#define __included_ssvm_eth_h__ - -#include <vnet/vnet.h> - -#include <vppinfra/elog.h> -#include <vppinfra/error.h> -#include <vppinfra/format.h> -#include <vppinfra/hash.h> -#include <vppinfra/vec.h> -#include <vppinfra/elog.h> -#include <vlib/vlib.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/devices/devices.h> -#include <vnet/ip/ip.h> -#include <vnet/pg/pg.h> -#include <svm/ssvm.h> -#include <svm/queue.h> - -extern vnet_device_class_t ssvm_eth_device_class; -extern vlib_node_registration_t ssvm_eth_input_node; - -#define SSVM_BUFFER_SIZE \ - (VLIB_BUFFER_DATA_SIZE + VLIB_BUFFER_PRE_DATA_SIZE) -#define SSVM_PACKET_TYPE 1 - -typedef struct -{ - /* Type of queue element */ - u8 type; - u8 flags; -#define SSVM_BUFFER_NEXT_PRESENT (1<<0) - u8 owner; - u8 tag; - i16 current_data_hint; - u16 length_this_buffer; - u16 total_length_not_including_first_buffer; - u16 pad; - u32 next_index; - /* offset 16 */ - u8 data[SSVM_BUFFER_SIZE]; - /* pad to an even multiple of 64 octets */ - u8 pad2[CLIB_CACHE_LINE_BYTES - 16]; -} ssvm_eth_queue_elt_t; - -typedef struct -{ - /* vector of point-to-point connections */ - ssvm_private_t *intfcs; - - u32 *buffer_cache; - u32 *chunk_cache; - - /* Configurable parameters */ - /* base address for next placement */ - u64 next_base_va; - u64 segment_size; - u64 nbuffers; - u64 queue_elts; - - /* Segment names */ - u8 **names; - - /* convenience */ - vlib_main_t *vlib_main; - vnet_main_t *vnet_main; - elog_main_t *elog_main; -} ssvm_eth_main_t; - -extern ssvm_eth_main_t ssvm_eth_main; - -typedef enum -{ - CHUNK_POOL_FREELIST_INDEX = 0, - CHUNK_POOL_INDEX, - CHUNK_POOL_NFREE, - TO_MASTER_Q_INDEX, - TO_SLAVE_Q_INDEX, - MASTER_ADMIN_STATE_INDEX, - SLAVE_ADMIN_STATE_INDEX, -} ssvm_eth_opaque_index_t; - -/* - * debug scaffolding. - */ -static inline void -ssvm_eth_validate_freelists (int need_lock) -{ -#if CLIB_DEBUG > 0 - ssvm_eth_main_t *em = &ssvm_eth_main; - ssvm_private_t *intfc; - ssvm_shared_header_t *sh; - u32 *elt_indices; - u32 n_available; - int i; - - for (i = 0; i < vec_len (em->intfcs); i++) - { - intfc = em->intfcs + i; - sh = intfc->sh; - u32 my_pid = intfc->my_pid; - - if (need_lock) - ssvm_lock (sh, my_pid, 15); - - elt_indices = (u32 *) (sh->opaque[CHUNK_POOL_FREELIST_INDEX]); - n_available = (u32) (uword) (sh->opaque[CHUNK_POOL_NFREE]); - - for (i = 0; i < n_available; i++) - ASSERT (elt_indices[i] < 2048); - - if (need_lock) - ssvm_unlock (sh); - } -#endif -} - -#endif /* __included_ssvm_eth_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |