bond_if_t *bif;
int i;
uword p;
- vnet_main_t *vnm = vnet_get_main ();
- vnet_hw_interface_t *hw;
u8 switching_active = 0;
bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
p = *vec_elt_at_index (bif->active_slaves, i);
if (p == sif->sw_if_index)
{
- if (sif->sw_if_index == bif->sw_if_index_working)
- {
- switching_active = 1;
- if (bif->mode == BOND_MODE_ACTIVE_BACKUP)
- bif->is_local_numa = 0;
- }
+ if ((bif->mode == BOND_MODE_ACTIVE_BACKUP) && (i == 0) &&
+ (vec_len (bif->active_slaves) > 1))
+ /* deleting the active slave for active-backup */
+ switching_active = 1;
vec_del1 (bif->active_slaves, i);
hash_unset (bif->active_slave_by_sw_if_index, sif->sw_if_index);
if (sif->lacp_enabled && bif->numa_only)
}
/* We get a new slave just becoming active */
- if ((bif->mode == BOND_MODE_ACTIVE_BACKUP) && switching_active)
- {
- if ((vec_len (bif->active_slaves) >= 1))
- {
- /* scan all slaves and try to find the first slave with local numa node. */
- vec_foreach_index (i, bif->active_slaves)
- {
- p = *vec_elt_at_index (bif->active_slaves, i);
- hw = vnet_get_sup_hw_interface (vnm, p);
- if (vm->numa_node == hw->numa_node)
- {
- bif->sw_if_index_working = p;
- bif->is_local_numa = 1;
- vlib_process_signal_event (bm->vlib_main,
- bond_process_node.index,
- BOND_SEND_GARP_NA,
- bif->hw_if_index);
- break;
- }
- }
- }
-
- /* No local numa node is found in the active slave set. Use the first slave */
- if ((bif->is_local_numa == 0) && (vec_len (bif->active_slaves) >= 1))
- {
- p = *vec_elt_at_index (bif->active_slaves, 0);
- bif->sw_if_index_working = p;
- vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
- BOND_SEND_GARP_NA, bif->hw_if_index);
- }
- }
+ if (switching_active)
+ vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
+ BOND_SEND_GARP_NA, bif->hw_if_index);
clib_spinlock_unlock_if_init (&bif->lockp);
if (bif->mode == BOND_MODE_LACP)
[sif->sw_if_index], sif->actor.state);
}
+/*
+ * return 1 if s2 is preferred.
+ * return -1 if s1 is preferred.
+ */
+static int
+bond_slave_sort (void *a1, void *a2)
+{
+ u32 *s1 = a1;
+ u32 *s2 = a2;
+ slave_if_t *sif1 = bond_get_slave_by_sw_if_index (*s1);
+ slave_if_t *sif2 = bond_get_slave_by_sw_if_index (*s2);
+ bond_if_t *bif;
+
+ ASSERT (sif1);
+ ASSERT (sif2);
+ /*
+ * sort entries according to preference rules:
+ * 1. biggest weight
+ * 2. numa-node
+ * 3. current active slave (to prevent churning)
+ * 4. lowest sw_if_index (for deterministic behavior)
+ *
+ */
+ if (sif2->weight > sif1->weight)
+ return 1;
+ if (sif2->weight < sif1->weight)
+ return -1;
+ else
+ {
+ if (sif2->is_local_numa > sif1->is_local_numa)
+ return 1;
+ if (sif2->is_local_numa < sif1->is_local_numa)
+ return -1;
+ else
+ {
+ bif = bond_get_master_by_dev_instance (sif1->bif_dev_instance);
+ /* Favor the current active slave to avoid churning */
+ if (bif->active_slaves[0] == sif2->sw_if_index)
+ return 1;
+ if (bif->active_slaves[0] == sif1->sw_if_index)
+ return -1;
+ /* go for the tiebreaker as the last resort */
+ if (sif1->sw_if_index > sif2->sw_if_index)
+ return 1;
+ if (sif1->sw_if_index < sif2->sw_if_index)
+ return -1;
+ else
+ ASSERT (0);
+ }
+ }
+ return 0;
+}
+
+static void
+bond_sort_slaves (bond_if_t * bif)
+{
+ bond_main_t *bm = &bond_main;
+ u32 old_active = bif->active_slaves[0];
+
+ vec_sort_with_function (bif->active_slaves, bond_slave_sort);
+ if (old_active != bif->active_slaves[0])
+ vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
+ BOND_SEND_GARP_NA, bif->hw_if_index);
+}
+
void
bond_enable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
{
bond_main_t *bm = &bond_main;
vnet_main_t *vnm = vnet_get_main ();
vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sif->sw_if_index);
- int i;
- uword p;
bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
clib_spinlock_lock_if_init (&bif->lockp);
bif->n_numa_slaves++;
}
else
- {
- vec_add1 (bif->active_slaves, sif->sw_if_index);
- }
+ vec_add1 (bif->active_slaves, sif->sw_if_index);
- /* First slave becomes active? */
- if ((vec_len (bif->active_slaves) == 1) &&
- (bif->mode == BOND_MODE_ACTIVE_BACKUP))
+ sif->is_local_numa = (vm->numa_node == hw->numa_node) ? 1 : 0;
+ if (bif->mode == BOND_MODE_ACTIVE_BACKUP)
{
- bif->sw_if_index_working = sif->sw_if_index;
- bif->is_local_numa = (vm->numa_node == hw->numa_node) ? 1 : 0;
- vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
- BOND_SEND_GARP_NA, bif->hw_if_index);
- }
- else if ((vec_len (bif->active_slaves) > 1)
- && (bif->mode == BOND_MODE_ACTIVE_BACKUP)
- && bif->is_local_numa == 0)
- {
- if (vm->numa_node == hw->numa_node)
- {
- vec_foreach_index (i, bif->active_slaves)
- {
- p = *vec_elt_at_index (bif->active_slaves, 0);
- if (p == sif->sw_if_index)
- break;
-
- vec_del1 (bif->active_slaves, 0);
- hash_unset (bif->active_slave_by_sw_if_index, p);
- vec_add1 (bif->active_slaves, p);
- hash_set (bif->active_slave_by_sw_if_index, p, p);
- }
- bif->sw_if_index_working = sif->sw_if_index;
- bif->is_local_numa = 1;
- vlib_process_signal_event (bm->vlib_main,
- bond_process_node.index,
- BOND_SEND_GARP_NA, bif->hw_if_index);
-
- }
+ if (vec_len (bif->active_slaves) == 1)
+ /* First slave becomes active? */
+ vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
+ BOND_SEND_GARP_NA, bif->hw_if_index);
+ else
+ bond_sort_slaves (bif);
}
}
clib_spinlock_unlock_if_init (&bif->lockp);
hi = vnet_get_hw_interface (vnm, bif->hw_if_index);
clib_memcpy(bondif->interface_name, hi->name,
MIN (ARRAY_LEN (bondif->interface_name) - 1,
- strlen ((const char *) hi->name)));
+ vec_len ((const char *) hi->name)));
+ /* enforce by memset() above */
+ ASSERT(0 == bondif->interface_name[ARRAY_LEN (bondif->interface_name) - 1]);
bondif->mode = bif->mode;
bondif->lb = bif->lb;
bondif->numa_only = bif->numa_only;
hi = vnet_get_hw_interface (vnm, sw->hw_if_index);
clib_memcpy (slaveif->interface_name, hi->name,
MIN (ARRAY_LEN (slaveif->interface_name) - 1,
- strlen ((const char *) hi->name)));
+ vec_len ((const char *) hi->name)));
+ /* enforce by memset() above */
+ ASSERT (0 ==
+ slaveif->interface_name[ARRAY_LEN (slaveif->interface_name) -
+ 1]);
slaveif->sw_if_index = sif->sw_if_index;
slaveif->is_passive = sif->is_passive;
slaveif->is_long_timeout = sif->is_long_timeout;
+ slaveif->is_local_numa = sif->is_local_numa;
+ slaveif->weight = sif->weight;
}
}
*out_slaveifs = r_slaveifs;
{
vlib_cli_output (vm, " %U", format_vnet_sw_if_index_name,
vnet_get_main (), *sw_if_index);
+ if (bif->mode == BOND_MODE_ACTIVE_BACKUP)
+ {
+ slave_if_t *sif = bond_get_slave_by_sw_if_index (*sw_if_index);
+ if (sif)
+ vlib_cli_output (vm, " weight: %u, is_local_numa: %u, "
+ "sw_if_index: %u", sif->weight,
+ sif->is_local_numa, sif->sw_if_index);
+ }
}
vlib_cli_output (vm, " number of slaves: %d", vec_len (bif->slaves));
vec_foreach (sw_if_index, bif->slaves)
};
/* *INDENT-ON* */
+void
+bond_set_intf_weight (vlib_main_t * vm, bond_set_intf_weight_args_t * args)
+{
+ slave_if_t *sif;
+ bond_if_t *bif;
+ vnet_main_t *vnm;
+ u32 old_weight;
+
+ sif = bond_get_slave_by_sw_if_index (args->sw_if_index);
+ if (!sif)
+ {
+ args->rv = VNET_API_ERROR_INVALID_INTERFACE;
+ args->error = clib_error_return (0, "Interface not enslaved");
+ return;
+ }
+ bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
+ if (!bif)
+ {
+ args->rv = VNET_API_ERROR_INVALID_INTERFACE;
+ args->error = clib_error_return (0, "bond interface not found");
+ return;
+ }
+ if (bif->mode != BOND_MODE_ACTIVE_BACKUP)
+ {
+ args->rv = VNET_API_ERROR_INVALID_ARGUMENT;
+ args->error =
+ clib_error_return (0, "Weight valid for active-backup only");
+ return;
+ }
+
+ old_weight = sif->weight;
+ sif->weight = args->weight;
+ vnm = vnet_get_main ();
+ /*
+ * No need to sort the list if the affected slave is not up (not in active
+ * slave set), active slave count is 1, or the current slave is already the
+ * primary slave and new weight > old weight.
+ */
+ if (!vnet_sw_interface_is_up (vnm, sif->sw_if_index) ||
+ (vec_len (bif->active_slaves) == 1) ||
+ ((bif->active_slaves[0] == sif->sw_if_index) &&
+ (sif->weight >= old_weight)))
+ return;
+
+ bond_sort_slaves (bif);
+}
+
+static clib_error_t *
+bond_set_intf_cmd (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ bond_set_intf_weight_args_t args = { 0 };
+ u32 sw_if_index = (u32) ~ 0;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ vnet_main_t *vnm = vnet_get_main ();
+ u8 weight_enter = 0;
+ u32 weight = 0;
+
+ /* Get a line of input. */
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return clib_error_return (0, "Missing required arguments.");
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "sw_if_index %d", &sw_if_index))
+ ;
+ else if (unformat (line_input, "%U", unformat_vnet_sw_interface, vnm,
+ &sw_if_index))
+ ;
+ else if (unformat (line_input, "weight %u", &weight))
+ weight_enter = 1;
+ else
+ {
+ clib_error_return (0, "unknown input `%U'", format_unformat_error,
+ input);
+ break;
+ }
+ }
+
+ unformat_free (line_input);
+ if (sw_if_index == (u32) ~ 0)
+ {
+ args.rv = VNET_API_ERROR_INVALID_INTERFACE;
+ clib_error_return (0, "Interface name is invalid!");
+ }
+ if (weight_enter == 0)
+ {
+ args.rv = VNET_API_ERROR_INVALID_ARGUMENT;
+ clib_error_return (0, "weight missing");
+ }
+
+ args.sw_if_index = sw_if_index;
+ args.weight = weight;
+ bond_set_intf_weight (vm, &args);
+
+ return args.error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND(set_interface_bond_cmd, static) = {
+ .path = "set interface bond",
+ .short_help = "set interface bond <interface> | sw_if_index <idx>"
+ " weight <value>",
+ .function = bond_set_intf_cmd,
+};
+/* *INDENT-ON* */
+
clib_error_t *
bond_cli_init (vlib_main_t * vm)
{
Code Review / vpp.git / blobdiff