From: oulijun <oulijun@huawei.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: <xiaoyun.li@intel.com>, <dev@dpdk.org>, <linuxarm@openeuler.org>
Subject: Re: [dpdk-dev] [PATCH V4] app/testpmd: support Tx mbuf free on demand cmd
Date: Wed, 21 Apr 2021 09:44:54 +0800 [thread overview]
Message-ID: <643832b2-a2d1-8c8e-4c19-d7c6f7622656@huawei.com> (raw)
In-Reply-To: <ca13d258-ee16-77f1-0118-d8b0f111d07b@intel.com>
在 2021/4/19 23:28, Ferruh Yigit 写道:
> On 4/19/2021 1:36 PM, Lijun Ou wrote:
>> From: Chengwen Feng <fengchengwen@huawei.com>
>>
>> This patch support tx_done_cleanup command:
>> tx_done_cleanup port (port_id) (queue_id) (free_cnt)
>>
>
> Instead of creating a new root level, 'tx_done_cleanup' command, what do
> you think to use existing port command, something like:
>
> "port cleanup <port_id> txq <queue_id> <free_cnt>"
>
Agree.
>> Users must make sure there are no concurrent access to the same Tx
>> queue (like rte_eth_tx_burst, rte_eth_dev_tx_queue_stop and so on)
>> this command executed.
>>
>> Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
>> Signed-off-by: Lijun Ou <oulijun@huawei.com>
>> ---
>> V3->V4:
>> - revert the V3 scheme.
>>
>> V2->V3:
>> - The command implementation is changed so that the queuestate does
>> not depend on the command execution.
>>
>> V1->V2:
>> - use Tx instead of TX
>> - add note in doc
>> ---
>> app/test-pmd/cmdline.c | 84
>> +++++++++++++++++++++++++++++
>> doc/guides/rel_notes/release_21_05.rst | 2 +
>> doc/guides/testpmd_app_ug/testpmd_funcs.rst | 11 ++++
>> 3 files changed, 97 insertions(+)
>>
>> diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
>> index 5bf1497..b43964d 100644
>> --- a/app/test-pmd/cmdline.c
>> +++ b/app/test-pmd/cmdline.c
>> @@ -675,6 +675,9 @@ static void cmd_help_long_parsed(void *parsed_result,
>> "set port (port_id) ptype_mask (ptype_mask)\n"
>> " set packet types classification for a specific
>> port\n\n"
>> + "tx_done_cleanup (port_id) (queue_id) (free_cnt)\n"
>> + " Cleanup a Tx queue's mbuf on a port\n\n"
>> +
>
> If 'free_cnt' is '0', driver should free all possible mbufs, can you add
> this detail to help?
Agree. I will fix it.
>
>> "set port (port_id) queue-region region_id (value) "
>> "queue_start_index (value) queue_num (value)\n"
>> " Set a queue region on a port\n\n"
>> @@ -16915,6 +16918,86 @@ cmdline_parse_inst_t cmd_showport_macs = {
>> },
>> };
>> +/* *** tx_done_cleanup *** */
>> +struct cmd_tx_done_cleanup_result {
>> + cmdline_fixed_string_t clean;
>> + cmdline_fixed_string_t port;
>> + uint16_t port_id;
>> + uint16_t queue_id;
>> + uint32_t free_cnt;
>> +};
>> +
>> +static void
>> +cmd_tx_done_cleanup_parsed(void *parsed_result,
>> + __rte_unused struct cmdline *cl,
>> + __rte_unused void *data)
>> +{
>> + struct cmd_tx_done_cleanup_result *res = parsed_result;
>> + uint16_t port_id = res->port_id;
>> + uint16_t queue_id = res->queue_id;
>> + uint32_t free_cnt = res->free_cnt;
>> + struct rte_eth_txq_info qinfo;
>> + int ret;
>> +
>> + if (rte_eth_tx_queue_info_get(port_id, queue_id, &qinfo)) {
>> + printf("Failed to get port %u Tx queue %u info!\n",
>> + port_id, queue_id);
>> + return;
>> + }
>> +
>> + if (qinfo.queue_state != RTE_ETH_QUEUE_STATE_STARTED) {
>> + printf("TX queue %u not started!\n", queue_id);
>> + return;
>> + }
>> +
>> + /*
>> + * rte_eth_tx_done_cleanup is a dataplane API, user must make sure
>> + * there are no concurrent access to the same Tx queue (like
>> + * rte_eth_tx_burst, rte_eth_dev_tx_queue_stop and so on) when
>> this API
>> + * called.
>> + */
>
> Should there be a check to see if testpmd forwarding is stared or not?
> This API shouldn't be allowed when forwarding is started.
>
Yes. I will fix in the new version.
>> + ret = rte_eth_tx_done_cleanup(port_id, queue_id, free_cnt);
>> + if (ret < 0) {
>> + printf("Failed to cleanup mbuf for port %u Tx queue %u "
>> + "error desc: %s(%d)\n",
>> + port_id, queue_id, strerror(-ret), ret);
>> + return;
>> + }
>> +
>> + printf("Cleanup port %u Tx queue %u mbuf nums: %u\n",
>> + port_id, queue_id, ret);
>> +}
>> +
>> +cmdline_parse_token_string_t cmd_tx_done_cleanup_clean =
>> + TOKEN_STRING_INITIALIZER(struct cmd_tx_done_cleanup_result, clean,
>> + "tx_done_cleanup");
>> +cmdline_parse_token_string_t cmd_tx_done_cleanup_port =
>> + TOKEN_STRING_INITIALIZER(struct cmd_tx_done_cleanup_result, port,
>> + "port");
>> +cmdline_parse_token_num_t cmd_tx_done_cleanup_port_id =
>> + TOKEN_NUM_INITIALIZER(struct cmd_tx_done_cleanup_result, port_id,
>> + UINT16);
>> +cmdline_parse_token_num_t cmd_tx_done_cleanup_queue_id =
>> + TOKEN_NUM_INITIALIZER(struct cmd_tx_done_cleanup_result, queue_id,
>> + UINT16);
>> +cmdline_parse_token_num_t cmd_tx_done_cleanup_free_cnt =
>> + TOKEN_NUM_INITIALIZER(struct cmd_tx_done_cleanup_result, free_cnt,
>> + UINT32);
>> +
>> +cmdline_parse_inst_t cmd_tx_done_cleanup = {
>> + .f = cmd_tx_done_cleanup_parsed,
>> + .data = NULL,
>> + .help_str = "tx_done_cleanup port <port_id> <queue_id> <free_cnt>",
>> + .tokens = {
>> + (void *)&cmd_tx_done_cleanup_clean,
>> + (void *)&cmd_tx_done_cleanup_port,
>> + (void *)&cmd_tx_done_cleanup_port_id,
>> + (void *)&cmd_tx_done_cleanup_queue_id,
>> + (void *)&cmd_tx_done_cleanup_free_cnt,
>> + NULL,
>> + },
>> +};
>> +
>> /*
>> ********************************************************************************
>> */
>> /* list of instructions */
>> @@ -17040,6 +17123,7 @@ cmdline_parse_ctx_t main_ctx[] = {
>> (cmdline_parse_inst_t *)&cmd_config_rss_reta,
>> (cmdline_parse_inst_t *)&cmd_showport_reta,
>> (cmdline_parse_inst_t *)&cmd_showport_macs,
>> + (cmdline_parse_inst_t *)&cmd_tx_done_cleanup,
>> (cmdline_parse_inst_t *)&cmd_config_burst,
>> (cmdline_parse_inst_t *)&cmd_config_thresh,
>> (cmdline_parse_inst_t *)&cmd_config_threshold,
>> diff --git a/doc/guides/rel_notes/release_21_05.rst
>> b/doc/guides/rel_notes/release_21_05.rst
>> index 4538bb9..554499f 100644
>> --- a/doc/guides/rel_notes/release_21_05.rst
>> +++ b/doc/guides/rel_notes/release_21_05.rst
>> @@ -217,6 +217,8 @@ New Features
>> ``show port (port_id) rxq (queue_id) desc used count``
>> * Added command to dump internal representation information of
>> single flow.
>> ``flow dump (port_id) rule (rule_id)``
>> + * Added command to cleanup a Tx queue's mbuf on a port.
>> + ``tx_done_cleanup port <port_id> <queue_id> <free_cnt>``
>> * **Updated ipsec-secgw sample application.**
>> diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
>> b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
>> index a736e7d..6472647 100644
>> --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
>> +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
>> @@ -270,6 +270,17 @@ and ready to be processed by the driver on a
>> given RX queue::
>> testpmd> show port (port_id) rxq (queue_id) desc used count
>> +cleanup txq mbufs
>> +~~~~~~~~~~~~~~~~~~~~~~~~
>> +
>> +Request the driver to free mbufs currently cached by the driver for a
>> given port's
>> +Tx queue::
>> + testpmd> tx_done_cleanup port (port_id) (queue_id) (free_cnt)
>> +
>> +.. note::
>> + This command is dangerous, users must make sure there are no
>> cucurrent access to
>> + the same Tx queue (link rte_eth_tx_burst,
>> rte_eth_dev_tx_queue_stop and so on).
>> +
>> show config
>> ~~~~~~~~~~~
>>
>
> .
>
next prev parent reply other threads:[~2021-04-21 1:45 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 7:33 [dpdk-dev] [PATCH] " Lijun Ou
2021-03-05 7:46 ` Li, Xiaoyun
2021-03-05 9:58 ` oulijun
2021-03-05 9:57 ` [dpdk-dev] [PATCH V2] " Lijun Ou
2021-03-08 17:33 ` Ferruh Yigit
2021-03-09 8:49 ` oulijun
2021-03-09 9:53 ` Ferruh Yigit
2021-03-09 9:57 ` Thomas Monjalon
2021-03-09 10:18 ` Andrew Rybchenko
2021-03-09 14:00 ` Aaron Conole
2021-03-09 14:13 ` Ferruh Yigit
2021-03-10 1:48 ` oulijun
2021-03-10 7:59 ` Thomas Monjalon
2021-03-12 10:29 ` [dpdk-dev] [Linuxarm] " oulijun
2021-03-12 11:21 ` Thomas Monjalon
2021-03-17 11:30 ` oulijun
2021-03-17 12:07 ` Thomas Monjalon
2021-03-18 3:56 ` oulijun
2021-03-18 7:51 ` Thomas Monjalon
2021-04-12 13:12 ` [dpdk-dev] [PATCH V3] " Lijun Ou
2021-04-19 3:11 ` Li, Xiaoyun
2021-04-19 12:40 ` oulijun
2021-04-19 14:56 ` Ferruh Yigit
2021-04-19 12:36 ` [dpdk-dev] [PATCH V4] " Lijun Ou
2021-04-19 15:28 ` Ferruh Yigit
2021-04-21 1:44 ` oulijun [this message]
2021-04-21 8:09 ` [dpdk-dev] [PATCH V5] app/test-pmd: support cleanup txq mbufs command Lijun Ou
2021-04-21 8:15 ` Ferruh Yigit
2021-04-21 8:32 ` oulijun
2021-04-21 8:45 ` [dpdk-dev] [PATCH V6] " Lijun Ou
2021-04-21 11:26 ` Ferruh Yigit
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