On 3/30/2021 7:41 AM, Min Hu (Connor) wrote:
在 2021/3/30 11:11, Ajit Khaparde 写道:
On Mon, Mar 29, 2021 at 6:48 PM Min Hu (Connor) <humi...@huawei.com> wrote:
From: Lijun Ou <ouli...@huawei.com>
This patch adds multi-process support for testpmd.
The test cmd example as follows:
the primary cmd:
./dpdk-testpmd -a xxx --proc-type=auto -l 0-1 -- -i \
--rxq=4 --txq=4 --num-procs=2 --proc-id=0
the secondary cmd:
./dpdk-testpmd -a xxx --proc-type=auto -l 2-3 -- -i \
--rxq=4 --txq=4 --num-procs=2 --proc-id=1
Signed-off-by: Min Hu (Connor) <humi...@huawei.com>
Signed-off-by: Lijun Ou <ouli...@huawei.com>
Some minor nits below. Otherwise looks fine to me.
Acked-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
Thanks Ajit.
Hi, Ferruh,
Should I send v9 to fix the grammar bugs in doc which Ajit point
out or fix it in future?
Hi Connor, if they are only outstanding issues, I can fix them while merging.
---
v8:
* Added warning info about queue numbers and process numbers.
:::snip::::
+* ``--rxq=N``
+
+ Set the number of Rx queues per port to N. N is the sum of queues used
by primary
+ and secondary process. Primary process and secondary process should have
separate
+ queues, and each should occupy at least one queue. Where N should be the
multiple
+ of number of processes.
of the number of processes.
+
+* ``--txq=N``
+
+ Set the number of Tx queues per port to N. N is the sum of queues used
by primary
+ and secondary process. Primary process and secondary process should have
separate
+ queues, and each should occupy at least one queue. Where N should be the
multiple
+ of number of processes.
of the number of processes.
+
+* ``--num-procs=N``
+
+ The number of processes which will be used.
+
:::: snip ::::
+The number of rings should be a multiple of the number of processes. If not,
+redundant queues will exist after queues are allocated to processes. After
RSS is
+enabled, packet loss occurs when traffic is sent to all processes at the
same time.
+Some traffic enters redundant queues and cannot be forwarded.
+
+Most dev ops is supported in primary and secondary process. While secondary
process
Most dev ops are supported in the primary and secondary process. While....
+is not permitted to allocate or release shared memory, so some ops are not
supported
+as follows:
+``dev_configure``
+``dev_start``
+``dev_stop``
+``rx_queue_setup``
+``tx_queue_setup``
+``rx_queue_release``
+``tx_queue_release``
:::: snip:::
