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From: Ferruh Yigit <ferruh.yigit@amd.com>
To: Huisong Li <lihuisong@huawei.com>,
	dev@dpdk.org, andrew.rybchenko@oktetlabs.ru
Cc: thomas@monjalon.net, liudongdong3@huawei.com,
	huangdaode@huawei.com, fengchengwen@huawei.com,
	Aman Singh <aman.deep.singh@intel.com>
Subject: Re: [PATCH V4 4/5] app/testpmd: add attach and detach port for multiple process
Date: Wed, 11 Jan 2023 12:51:54 +0000	[thread overview]
Message-ID: <c07dcb46-7207-ebd6-b114-e2e1c0f5231f@amd.com> (raw)
In-Reply-To: <20221206092649.8287-5-lihuisong@huawei.com>

On 12/6/2022 9:26 AM, Huisong Li wrote:
> This patch supports attach and detach port in primary and secondary
> process.
> 

Hi Huisong,

This patch moves port setup and remove (via alarm callback) to event
callback,

1) I can see it is for MP but can you please give more details, what was
the problem before, how this solves the issue

2) I am concerned about doing more work on the event callback and
observe some unexpected side effects later, can't we handle this out of
event callback


> Signed-off-by: Huisong Li <lihuisong@huawei.com>
> Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
> ---
>  app/test-pmd/testpmd.c                | 38 ++++++++++++++++-----------
>  app/test-pmd/testpmd.h                |  1 -
>  drivers/net/bonding/bonding_testpmd.c |  1 -
>  3 files changed, 22 insertions(+), 18 deletions(-)
> 
> diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> index bc25703490..2e6329c853 100644
> --- a/app/test-pmd/testpmd.c
> +++ b/app/test-pmd/testpmd.c
> @@ -3463,15 +3463,12 @@ attach_port(char *identifier)
>  		return;
>  	}
>  
> -	/* first attach mode: event */
> -	if (setup_on_probe_event) {
> -		/* new ports are detected on RTE_ETH_EVENT_NEW event */
> -		for (pi = 0; pi < RTE_MAX_ETHPORTS; pi++)
> -			if (ports[pi].port_status == RTE_PORT_HANDLING &&
> -					ports[pi].need_setup != 0)
> -				setup_attached_port(pi);
> +	/*
> +	 * first attach mode: event, setting up attached port is done in
> +	 * probing callback.
> +	 */
> +	if (setup_on_probe_event)
>  		return;
> -	}
>  
>  	/* second attach mode: iterator */
>  	RTE_ETH_FOREACH_MATCHING_DEV(pi, identifier, &iterator) {
> @@ -3502,7 +3499,6 @@ setup_attached_port(portid_t pi)
>  	ports_ids[nb_ports++] = pi;
>  	fwd_ports_ids[nb_fwd_ports++] = pi;
>  	nb_cfg_ports = nb_fwd_ports;
> -	ports[pi].need_setup = 0;
>  	ports[pi].port_status = RTE_PORT_STOPPED;
>  
>  	printf("Port %d is attached. Now total ports is %d\n", pi, nb_ports);
> @@ -3536,10 +3532,8 @@ detach_device(struct rte_device *dev)
>  		TESTPMD_LOG(ERR, "Failed to detach device %s\n", rte_dev_name(dev));
>  		return;
>  	}
> -	remove_invalid_ports();
>  
>  	printf("Device is detached\n");
> -	printf("Now total ports is %d\n", nb_ports);
>  	printf("Done\n");
>  	return;
>  }
> @@ -3606,11 +3600,9 @@ detach_devargs(char *identifier)
>  		return;
>  	}
>  
> -	remove_invalid_ports();
> -
>  	printf("Device %s is detached\n", identifier);
> -	printf("Now total ports is %d\n", nb_ports);
>  	printf("Done\n");
> +
>  	rte_devargs_reset(&da);
>  }
>  
> @@ -3774,11 +3766,22 @@ rmv_port_callback(void *arg)
>  		struct rte_device *device = dev_info.device;
>  		close_port(port_id);
>  		detach_device(device); /* might be already removed or have more ports */
> +		remove_invalid_ports();
> +		printf("Now total ports is %d\n", nb_ports);
>  	}
>  	if (need_to_start)
>  		start_packet_forwarding(0);
>  }
>  
> +static void
> +remove_invalid_ports_callback(void *arg)
> +{
> +	RTE_SET_USED(arg);
> +
> +	remove_invalid_ports();
> +	printf("Now total ports is %d\n", nb_ports);
> +}
> +
>  /* This function is used by the interrupt thread */
>  static int
>  eth_event_callback(portid_t port_id, enum rte_eth_event_type type, void *param,
> @@ -3803,8 +3806,8 @@ eth_event_callback(portid_t port_id, enum rte_eth_event_type type, void *param,
>  
>  	switch (type) {
>  	case RTE_ETH_EVENT_NEW:
> -		ports[port_id].need_setup = 1;
> -		ports[port_id].port_status = RTE_PORT_HANDLING;
> +		if (setup_on_probe_event)
> +			setup_attached_port(port_id);
>  		break;
>  	case RTE_ETH_EVENT_INTR_RMV:
>  		if (rte_eal_alarm_set(100000,
> @@ -3815,6 +3818,9 @@ eth_event_callback(portid_t port_id, enum rte_eth_event_type type, void *param,
>  	case RTE_ETH_EVENT_DESTROY:
>  		ports[port_id].port_status = RTE_PORT_CLOSED;
>  		printf("Port %u is closed\n", port_id);
> +		if (rte_eal_alarm_set(100000, remove_invalid_ports_callback,
> +			(void *)(intptr_t)port_id))
> +			fprintf(stderr, "Could not set up deferred device released\n");
>  		break;
>  	case RTE_ETH_EVENT_RX_AVAIL_THRESH: {
>  		uint16_t rxq_id;
> diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
> index 7d24d25970..080d3a1139 100644
> --- a/app/test-pmd/testpmd.h
> +++ b/app/test-pmd/testpmd.h
> @@ -306,7 +306,6 @@ struct rte_port {
>  	uint16_t                tx_vlan_id;/**< The tag ID */
>  	uint16_t                tx_vlan_id_outer;/**< The outer tag ID */
>  	volatile uint16_t        port_status;    /**< port started or not */
> -	uint8_t                 need_setup;     /**< port just attached */
>  	uint8_t                 need_reconfig;  /**< need reconfiguring port or not */
>  	uint8_t                 need_reconfig_queues; /**< need reconfiguring queues or not */
>  	uint8_t                 rss_flag;   /**< enable rss or not */
> diff --git a/drivers/net/bonding/bonding_testpmd.c b/drivers/net/bonding/bonding_testpmd.c
> index 9529e16fb6..9216271314 100644
> --- a/drivers/net/bonding/bonding_testpmd.c
> +++ b/drivers/net/bonding/bonding_testpmd.c
> @@ -765,7 +765,6 @@ static void cmd_create_bonded_device_parsed(void *parsed_result,
>  
>  	ports[port_id].update_conf = 1;
>  	ports[port_id].bond_flag = 1;
> -	ports[port_id].need_setup = 0;
>  	ports[port_id].port_status = RTE_PORT_STOPPED;
>  }
>  


  reply	other threads:[~2023-01-11 12:52 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220825024425.10534-1-lihuisong@huawei.com>
2022-09-15 12:45 ` [PATCH V2 0/6] [PATCH 0/6] app/testpmd: support attach and detach port for MP Huisong Li
2022-09-15 12:45   ` [PATCH V2 1/6] bus/pci: fix a segfault when call callback Huisong Li
2022-10-10 19:49     ` Thomas Monjalon
2022-10-25  3:25       ` lihuisong (C)
2022-09-15 12:45   ` [PATCH V2 2/6] bus/vdev: " Huisong Li
2022-09-15 12:45   ` [PATCH V2 3/6] ethdev: fix push new event Huisong Li
2022-09-27 10:49     ` Thomas Monjalon
2022-10-08  4:09       ` lihuisong (C)
2022-10-25  3:26         ` lihuisong (C)
2022-09-15 12:45   ` [PATCH V2 4/6] app/testpmd: check the validity of the port Huisong Li
2022-09-22  5:07     ` Singh, Aman Deep
2022-09-15 12:45   ` [PATCH V2 5/6] app/testpmd: support attach and detach port for MP Huisong Li
2022-09-15 12:45   ` [PATCH V2 6/6] app/testpmd: stop packet forwarding in new and destroy event Huisong Li
2022-12-06  6:45 ` [PATCH V3 0/5] app/testpmd: support mulitple process attach and detach port Huisong Li
2022-12-06  6:45   ` [PATCH V3 1/5] drivers/bus: restore driver assignment at front of probing Huisong Li
2022-12-06  6:45   ` [PATCH V3 2/5] ethdev: fix skip valid port in probing callback Huisong Li
2022-12-06  6:45   ` [PATCH V3 3/5] app/testpmd: check the validity of the port Huisong Li
2022-12-06  6:45   ` [PATCH V3 4/5] app/testpmd: add attach and detach port for multiple process Huisong Li
2022-12-06  6:45   ` [PATCH V3 5/5] app/testpmd: stop forwarding in new or destroy event Huisong Li
2022-12-06  9:26 ` [PATCH V4 0/5] app/testpmd: support mulitple process attach and detach port Huisong Li
2022-12-06  9:26   ` [PATCH V4 1/5] drivers/bus: restore driver assignment at front of probing Huisong Li
2023-01-11 12:51     ` Ferruh Yigit
2023-01-12  2:44       ` lihuisong (C)
2023-02-15 16:09         ` Ferruh Yigit
2023-02-28  2:21           ` lihuisong (C)
2023-06-06 16:12             ` Ferruh Yigit
2023-06-07 10:11               ` lihuisong (C)
2023-06-15  2:21                 ` lihuisong (C)
2022-12-06  9:26   ` [PATCH V4 2/5] ethdev: fix skip valid port in probing callback Huisong Li
2023-01-11 12:51     ` Ferruh Yigit
2023-01-12  4:12       ` lihuisong (C)
2022-12-06  9:26   ` [PATCH V4 3/5] app/testpmd: check the validity of the port Huisong Li
2022-12-06  9:26   ` [PATCH V4 4/5] app/testpmd: add attach and detach port for multiple process Huisong Li
2023-01-11 12:51     ` Ferruh Yigit [this message]
2023-01-12  4:14       ` lihuisong (C)
2022-12-06  9:26   ` [PATCH V4 5/5] app/testpmd: stop forwarding in new or destroy event Huisong Li
2023-01-11 12:52     ` Ferruh Yigit
2023-01-12  4:16       ` lihuisong (C)
2023-01-09 12:38   ` [PATCH V4 0/5] app/testpmd: support mulitple process attach and detach port lihuisong (C)
2023-01-10 16:51   ` Ferruh Yigit
2023-01-11  0:53     ` lihuisong (C)
2023-01-11 10:27       ` Ferruh Yigit
2023-01-11 10:46         ` Ferruh Yigit
2023-01-12  2:26           ` lihuisong (C)
2023-01-18 14:12           ` Thomas Monjalon
2023-01-19 10:31             ` lihuisong (C)
2023-01-19 14:35               ` Thomas Monjalon
2023-01-28  1:39                 ` lihuisong (C)
2023-01-31  3:33 ` [PATCH V5 0/5] app/testpmd: support multiple " Huisong Li
2023-01-31  3:33   ` [PATCH V5 1/5] drivers/bus: restore driver assignment at front of probing Huisong Li
2023-01-31  3:33   ` [PATCH V5 2/5] ethdev: fix skip valid port in probing callback Huisong Li
2023-05-22 11:04     ` fengchengwen
2023-05-27  1:58       ` lihuisong (C)
2023-01-31  3:33   ` [PATCH V5 3/5] app/testpmd: check the validity of the port Huisong Li
2023-01-31  3:33   ` [PATCH V5 4/5] app/testpmd: add attach and detach port for multiple process Huisong Li
2023-01-31  3:33   ` [PATCH V5 5/5] app/testpmd: stop forwarding in new or destroy event Huisong Li
2023-05-16 11:27   ` [PATCH V5 0/5] app/testpmd: support multiple process attach and detach port lihuisong (C)
2023-05-23  0:46   ` fengchengwen
2023-05-27  2:11 ` [PATCH V6 " Huisong Li
2023-05-27  2:11   ` [PATCH V6 1/5] drivers/bus: restore driver assignment at front of probing Huisong Li
2023-05-27  2:11   ` [PATCH V6 2/5] ethdev: fix skip valid port in probing callback Huisong Li
2023-05-27  2:11   ` [PATCH V6 3/5] app/testpmd: check the validity of the port Huisong Li
2023-05-27  2:11   ` [PATCH V6 4/5] app/testpmd: add attach and detach port for multiple process Huisong Li
2023-05-27  2:11   ` [PATCH V6 5/5] app/testpmd: stop forwarding in new or destroy event Huisong Li
2023-06-06 16:26   ` [PATCH V6 0/5] app/testpmd: support multiple process attach and detach port Ferruh Yigit
2023-06-07 10:14     ` lihuisong (C)
2023-07-14  7:21   ` lihuisong (C)
2023-08-02  3:15 ` [PATCH RESEND v6 " Huisong Li
2023-08-02  3:15   ` [PATCH RESEND v6 1/5] drivers/bus: restore driver assignment at front of probing Huisong Li
2023-08-02  3:15   ` [PATCH RESEND v6 2/5] ethdev: fix skip valid port in probing callback Huisong Li
2023-08-02  3:15   ` [PATCH RESEND v6 3/5] app/testpmd: check the validity of the port Huisong Li
2023-08-02  3:15   ` [PATCH RESEND v6 4/5] app/testpmd: add attach and detach port for multiple process Huisong Li
2023-08-02  3:16   ` [PATCH RESEND v6 5/5] app/testpmd: stop forwarding in new or destroy event Huisong Li
2023-10-09 10:34   ` [PATCH RESEND v6 0/5] app/testpmd: support multiple process attach and detach port lihuisong (C)
2023-10-30 12:17     ` lihuisong (C)
2023-12-08  2:25       ` lihuisong (C)
2024-01-30  6:36 ` [PATCH v7 " Huisong Li
2024-01-30  6:36   ` [PATCH v7 1/5] drivers/bus: restore driver assignment at front of probing Huisong Li
2024-01-30  6:36   ` [PATCH v7 2/5] ethdev: fix skip valid port in probing callback Huisong Li
2024-01-30  6:36   ` [PATCH v7 3/5] app/testpmd: check the validity of the port Huisong Li
2024-01-30  6:36   ` [PATCH v7 4/5] app/testpmd: add attach and detach port for multiple process Huisong Li
2024-01-30  6:36   ` [PATCH v7 5/5] app/testpmd: stop forwarding in new or destroy event Huisong Li
2024-03-08 10:38   ` [PATCH v7 0/5] app/testpmd: support multiple process attach and detach port lihuisong (C)
2024-04-23 11:17   ` lihuisong (C)

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