_(NO_BUFFERS, "Tx packet drops (no buffers)") \
_(ADMIN_DOWN, "Tx packet drops (admin down)")
-typedef enum {
+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_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);
+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)
+int
+ssvm_eth_create (ssvm_eth_main_t * em, u8 * name, int is_master)
{
- ssvm_private_t * intfc;
- void * oldheap;
- clib_error_t * e;
- unix_shared_memory_queue_t * q;
- ssvm_shared_header_t * sh;
- ssvm_eth_queue_elt_t * elts;
- u32 * elt_indices;
+ ssvm_private_t *intfc;
+ void *oldheap;
+ clib_error_t *e;
+ unix_shared_memory_queue_t *q;
+ ssvm_shared_header_t *sh;
+ ssvm_eth_queue_elt_t *elts;
+ u32 *elt_indices;
u8 enet_addr[6];
int i, rv;
intfc->ssvm_size = em->segment_size;
intfc->i_am_master = 1;
intfc->name = name;
- intfc->my_pid = getpid();
+ intfc->my_pid = getpid ();
if (is_master == 0)
{
- rv = ssvm_slave_init (intfc, 20 /* timeout in seconds */);
+ rv = ssvm_slave_init (intfc, 20 /* timeout in seconds */ );
if (rv < 0)
- return rv;
+ 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 */);
+ 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 = unix_shared_memory_queue_init (em->queue_elts, sizeof (u32),
- 0 /* consumer pid not interesting */,
- 0 /* signal not sent */);
- sh->opaque [TO_MASTER_Q_INDEX] = (void *)q;
+ 0 /* consumer pid not interesting */ ,
+ 0 /* signal not sent */ );
+ sh->opaque[TO_MASTER_Q_INDEX] = (void *) q;
q = unix_shared_memory_queue_init (em->queue_elts, sizeof (u32),
- 0 /* consumer pid not interesting */,
- 0 /* signal not sent */);
- sh->opaque [TO_SLAVE_Q_INDEX] = (void *)q;
-
- /*
+ 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
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;
-
+ 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:
+create_vnet_interface:
sh = intfc->sh;
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,
+ (em->vnet_main, ssvm_eth_device_class.index, intfc - em->intfcs,
/* ethernet address */ enet_addr,
- &intfc->vlib_hw_if_index,
- ssvm_eth_flag_change);
+ &intfc->vlib_hw_if_index, ssvm_eth_flag_change);
if (e)
{
}
/* Declare link up */
- vnet_hw_interface_set_flags (em->vnet_main, intfc->vlib_hw_if_index,
- VNET_HW_INTERFACE_FLAG_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;
+ sh->ready = 1;
return 0;
}
static clib_error_t *
ssvm_config (vlib_main_t * vm, unformat_input_t * input)
{
- u8 * name;
+ u8 *name;
int is_master = 1;
int i, rv;
- ssvm_eth_main_t * em = &ssvm_eth_main;
+ ssvm_eth_main_t *em = &ssvm_eth_main;
- while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
+ 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));
+ 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;
+ is_master = 0;
else if (unformat (input, "%s", &name))
- vec_add1 (em->names, name);
+ vec_add1 (em->names, name);
else
- break;
+ break;
}
/* No configured instances, we're done... */
if (vec_len (em->names) == 0)
- return 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);
+ 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);
+ 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)
+static clib_error_t *
+ssvm_eth_init (vlib_main_t * vm)
{
- ssvm_eth_main_t * em = &ssvm_eth_main;
+ 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))
+ 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);
+ sizeof (ssvm_eth_queue_elt_t), CLIB_CACHE_LINE_BYTES);
em->vlib_main = vm;
- em->vnet_main = vnet_get_main();
+ 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->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[] = {
+static char *ssvm_eth_tx_func_error_strings[] = {
#define _(n,s) s,
- foreach_ssvm_eth_tx_func_error
+ foreach_ssvm_eth_tx_func_error
#undef _
};
-static u8 * format_ssvm_eth_device_name (u8 * s, va_list * args)
+static u8 *
+format_ssvm_eth_device_name (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
return s;
}
-static u8 * format_ssvm_eth_device (u8 * s, va_list * args)
+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)
+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)
+ 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;
- unix_shared_memory_queue_t * q;
- u32 * from;
+ 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;
+ unix_shared_memory_queue_t *q;
+ u32 *from;
u32 n_left;
- ssvm_eth_queue_elt_t * elts, * elt, * prev_elt;
+ ssvm_eth_queue_elt_t *elts, *elt, *prev_elt;
u32 my_pid = intfc->my_pid;
- vlib_buffer_t * b0;
+ vlib_buffer_t *b0;
u32 bi0;
u32 size_this_buffer;
u32 chunks_this_buffer;
volatile u32 *queue_lock;
u32 n_to_alloc = VLIB_FRAME_SIZE;
u32 n_allocated, n_present_in_cache, n_available;
- u32 * elt_indices;
-
+ u32 *elt_indices;
+
if (i_am_master)
- q = (unix_shared_memory_queue_t *)sh->opaque [TO_SLAVE_Q_INDEX];
+ q = (unix_shared_memory_queue_t *) sh->opaque[TO_SLAVE_Q_INDEX];
else
- q = (unix_shared_memory_queue_t *)sh->opaque [TO_MASTER_Q_INDEX];
+ q = (unix_shared_memory_queue_t *) sh->opaque[TO_MASTER_Q_INDEX];
queue_lock = (u32 *) q;
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)
+ 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]);
+ 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)
+ if (n_present_in_cache < n_left * 2)
{
- vec_validate (em->chunk_cache,
- n_to_alloc + n_present_in_cache - 1);
+ 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))
+ 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);
+ &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*);
+ sh->opaque[CHUNK_POOL_NFREE] = uword_to_pointer (n_available, void *);
_vec_len (em->chunk_cache) = n_present_in_cache;
}
{
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;
+ / 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;
- }
+ {
+ 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;
- }
+ {
+ 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))
- ;
-
- unix_shared_memory_queue_add_raw (q, (u8 *)&elt_index);
- CLIB_MEMORY_BARRIER();
+ ;
+
+ unix_shared_memory_queue_add_raw (q, (u8 *) & elt_index);
+ CLIB_MEMORY_BARRIER ();
*queue_lock = 0;
from++;
n_left--;
}
- out:
- if (PREDICT_FALSE(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);
+ 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);
+ 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_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);
+ 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;
+ 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)
+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)
+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);
+ 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;
+ 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;
+ sh->opaque[MASTER_ADMIN_STATE_INDEX] = (void *) is_up;
else
- sh->opaque [SLAVE_ADMIN_STATE_INDEX] = (void *) is_up;
-
+ 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)
+ 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)
+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;
+ 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);
-
+ 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 =
+
+ 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)
+static u32
+ssvm_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
{
- /* nothing for now */
- return 0;
+ /* nothing for now */
+ return 0;
}
+/* *INDENT-OFF* */
VNET_DEVICE_CLASS (ssvm_eth_device_class) = {
.name = "ssvm-eth",
.tx_function = ssvm_eth_interface_tx,
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:
+ */
Code Review / vpp.git / blobdiff