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authorDamjan Marion <damarion@cisco.com>2017-03-20 16:34:15 +0100
committerDamjan Marion <damarion@cisco.com>2017-03-20 16:34:15 +0100
commiteb743fad56b32cb20ad2d2cadc4760f9c25be5e1 (patch)
tree4e5b6cd7b7635ee7269ab33300188de7fd42595d /src/vnet/devices/devices.h
parent95475a3661b95150c8d1e60a3942b91c2b5d06bc (diff)
vnet: add device-input threadplacement infra
This change adds two new debug CLI command: - "show interface placmenet" to display which thread (main or worker) is responsible for processing interface rx queue vpp# show interface placement Thread 0 (vpp_main): node af-packet-input: host-vpp1 queue 0 Thread 1 (vpp_wk_0): node af-packet-input: host-virbr0 queue 0 Thread 2 (vpp_wk_1): node af-packet-input: host-vpp2 queue 0 host-lxcbr0 queue 0 - "set interface placmenet" to assign thread (main or worker) which process specific interface rx queue vpp# set interface placement host-vpp1 queue 0 main Change-Id: Id4dd00cf2b05e10fae2125ac7cb4411b446c5e9c Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vnet/devices/devices.h')
-rw-r--r--src/vnet/devices/devices.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/vnet/devices/devices.h b/src/vnet/devices/devices.h
index a5cbc35e682..bbb29fe301c 100644
--- a/src/vnet/devices/devices.h
+++ b/src/vnet/devices/devices.h
@@ -50,12 +50,38 @@ typedef struct
typedef struct
{
vnet_device_per_worker_data_t *workers;
+ uword first_worker_cpu_index;
+ uword last_worker_cpu_index;
+ uword next_worker_cpu_index;
} vnet_device_main_t;
+typedef struct
+{
+ u32 hw_if_index;
+ u32 dev_instance;
+ u16 queue_id;
+} vnet_device_and_queue_t;
+
+typedef struct
+{
+ vnet_device_and_queue_t *devices_and_queues;
+} vnet_device_input_runtime_t;
+
extern vnet_device_main_t vnet_device_main;
extern vlib_node_registration_t device_input_node;
extern const u32 device_input_next_node_advance[];
+static inline void
+vnet_set_device_input_node (u32 hw_if_index, u32 node_index)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
+ hw->input_node_index = node_index;
+}
+
+void vnet_device_input_assign_thread (u32 hw_if_index, u16 queue_id,
+ uword cpu_index);
+
static inline u64
vnet_get_aggregate_rx_packets (void)
{
@@ -78,6 +104,25 @@ vnet_device_increment_rx_packets (u32 cpu_index, u64 count)
pwd->aggregate_rx_packets += count;
}
+static_always_inline vnet_device_and_queue_t *
+vnet_get_device_and_queue (vlib_main_t * vm, vlib_node_runtime_t * node)
+{
+ vnet_device_input_runtime_t *rt = (void *) node->runtime_data;
+ return rt->devices_and_queues;
+}
+
+static_always_inline void
+vnet_device_input_set_interrupt_pending (vnet_main_t * vnm, u32 hw_if_index,
+ u16 queue_id)
+{
+ vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
+
+ ASSERT (queue_id < vec_len (hw->input_node_cpu_index_by_queue));
+ u32 cpu_index = hw->input_node_cpu_index_by_queue[queue_id];
+ vlib_node_set_interrupt_pending (vlib_mains[cpu_index],
+ hw->input_node_index);
+}
+
#endif /* included_vnet_vnet_device_h */
/*