On 2/17/23 13:50, Jiawei Wang wrote:
When multiple ports are aggregated into a single DPDK port,
(example: Linux bonding, DPDK bonding, failsafe, etc.),
we want to know which port use for Tx via a queue.
This patch introduces the new ethdev API
rte_eth_dev_map_aggr_tx_affinity(), it's used to map a Tx queue
with an aggregated port of the DPDK port (specified with port_id),
The affinity is the number of the aggregated port.
Value 0 means no affinity and traffic could be routed to any
aggregated port, this is the default current behavior.
The maximum number of affinity is given by rte_eth_dev_count_aggr_ports().
Add the trace point for ethdev rte_eth_dev_count_aggr_ports()
and rte_eth_dev_map_aggr_tx_affinity() functions.
Add the testpmd command line:
testpmd> port config (port_id) txq (queue_id) affinity (value)
For example, there're two physical ports connected to
a single DPDK port (port id 0), and affinity 1 stood for
the first physical port and affinity 2 stood for the second
physical port.
Use the below commands to config tx phy affinity for per Tx Queue:
port config 0 txq 0 affinity 1
port config 0 txq 1 affinity 1
port config 0 txq 2 affinity 2
port config 0 txq 3 affinity 2
These commands config the Tx Queue index 0 and Tx Queue index 1 with
phy affinity 1, uses Tx Queue 0 or Tx Queue 1 send packets,
these packets will be sent from the first physical port, and similar
with the second physical port if sending packets with Tx Queue 2
or Tx Queue 3.
Signed-off-by: Jiawei Wang <jiaw...@nvidia.com>
Acked-by: Thomas Monjalon <tho...@monjalon.net>
[snip]
diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index 6a550cfc83..b7fdc454a8 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -1171,6 +1171,40 @@ typedef int (*eth_tx_descriptor_dump_t)(const struct
rte_eth_dev *dev,
uint16_t queue_id, uint16_t offset,
uint16_t num, FILE *file);
+/**
+ * @internal
+ * Get the number of aggregated ports.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ *
+ * @return
+ * Negative errno value on error, 0 or positive on success.
+ *
+ * @retval >=0
+ * The number of aggregated port if success.
+ * @retval -ENOTSUP
+ * Get aggregated ports API is not supported.
+ */
+typedef int (*eth_count_aggr_ports_t)(uint16_t port_id);
Why does use port_id as the first parameter whereas all other
driver callbacks use 'struct rte_eth_dev *'?
+
+/**
+ * @internal
+ * Map a Tx queue with an aggregated port of the DPDK port.
+ *
+ * @param port_id
+ * The identifier of the port used in rte_eth_tx_burst().
+ * @param tx_queue_id
+ * The index of the transmit queue used in rte_eth_tx_burst().
+ * @param affinity
+ * The number of the aggregated port.
+ *
+ * @return
+ * Negative on error, 0 on success.
+ */
+typedef int (*eth_map_aggr_tx_affinity_t)(uint16_t port_id, uint16_t
tx_queue_id,
+ uint8_t affinity);
same herre
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index 055c46082b..1a63f9fb7a 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -6946,6 +6946,78 @@ rte_eth_buffer_split_get_supported_hdr_ptypes(uint16_t
port_id, uint32_t *ptypes
return j;
}
+int rte_eth_dev_count_aggr_ports(uint16_t port_id)
+{
+ struct rte_eth_dev *dev;
+ int ret;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ if (*dev->dev_ops->count_aggr_ports == NULL)
Is it OK that tracing is long in this case?
+ return 0;
+ ret = eth_err(port_id, (*dev->dev_ops->count_aggr_ports)(port_id));
+
+ rte_eth_trace_count_aggr_ports(port_id, ret);
+
+ return ret;
+}
+
[snip]
