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From: Thomas Monjalon <thomas@monjalon.net>
To: Huisong Li <lihuisong@huawei.com>
Cc: dev@dpdk.org, ferruh.yigit@amd.com,
	andrew.rybchenko@oktetlabs.ru, liudongdong3@huawei.com,
	huangdaode@huawei.com, fengchengwen@huawei.com
Subject: Re: [PATCH V6] ethdev: fix one address occupies two entries in MAC addrs
Date: Wed, 01 Feb 2023 11:42:14 +0100	[thread overview]
Message-ID: <2165957.1BCLMh4Saa@thomas> (raw)
In-Reply-To: <20230131064154.10571-1-lihuisong@huawei.com>

31/01/2023 07:41, Huisong Li:
> The dev->data->mac_addrs[0] will be changed to a new MAC address when
> applications modify the default MAC address by .mac_addr_set(). However,
> if the new default one has been added as a non-default MAC address by
> .mac_addr_add(), the .mac_addr_set() doesn't remove it from the mac_addrs
> list. As a result, one MAC address occupies two entries in the list. Like:
> add(MAC1)
> add(MAC2)
> add(MAC3)
> add(MAC4)
> set_default(MAC3)
> default=MAC3, the rest of list=MAC1, MAC2, MAC3, MAC4
> Note: MAC3 occupies two entries.
> 
> In addition, some PMDs, such as i40e, ice, hns3 and so on, do remove the
> old default MAC when set default MAC. If user continues to do
> set_default(MAC5), and the mac_addrs list is default=MAC5, filters=(MAC1,
> MAC2, MAC3, MAC4). At this moment, user can still see MAC3 from the list,
> but packets with MAC3 aren't actually received by the PMD.
> 
> So need to ensure that the new default address is removed from the rest of
> the list.
> 
> Fixes: 854d8ad4ef68 ("ethdev: add default mac address modifier")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Huisong Li <lihuisong@huawei.com>
> Acked-by: Chengwen Feng <fengchengwen@huawei.com>
> ---
>  lib/ethdev/ethdev_driver.h |  6 +++++-
>  lib/ethdev/rte_ethdev.c    | 35 +++++++++++++++++++++++++++++++++--
>  2 files changed, 38 insertions(+), 3 deletions(-)

This is a behavior change.
It must be noted in the release notes in the API section.

> -	/** Device Ethernet link address. @see rte_eth_dev_release_port() */
> +	/**
> +	 * Device Ethernet link addresses. The first entry (index zero) is the
> +	 * default address. The rest of list cannot be the same as the default
> +	 * address.
> +	 */

Please split the lines after a dot.

rest of "the" list

Maybe better for this field:
	All entries are unique.
	The first entry (index zero) is the default address.

>  	struct rte_ether_addr *mac_addrs;

and for the function rte_eth_dev_default_mac_addr_set:
	Set the default MAC address.
	It replaces the address at index 0 of the address list.
	If the address was already in the MAC address list,
	it is removed from the rest of the list.




  reply	other threads:[~2023-02-01 10:42 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-22  3:36 [dpdk-dev] [PATCH] ethdev: fix one MAC address occupies two index in mac addrs Min Hu (Connor)
2021-09-22  6:39 ` Andrew Rybchenko
2021-09-22  7:43   ` Huisong Li
2021-09-22  8:02     ` Andrew Rybchenko
2021-09-22  9:48       ` Huisong Li
2021-10-05 19:21 ` Thomas Monjalon
2021-10-08  7:02   ` Min Hu (Connor)
2021-10-08 10:04     ` Thomas Monjalon
2021-10-09  9:53       ` Min Hu (Connor)
2021-10-11  9:02         ` Thomas Monjalon
2021-10-11  9:28 ` [dpdk-dev] [PATCH v2] " Min Hu (Connor)
2021-10-11 10:35   ` Thomas Monjalon
2021-10-12  2:58     ` lihuisong (C)
2021-10-12  7:14       ` Thomas Monjalon
2021-10-15  2:00         ` lihuisong (C)
2021-10-19 17:45   ` Ferruh Yigit
2021-10-20  6:49     ` lihuisong (C)
2021-10-20  7:41       ` Ferruh Yigit
2021-10-20 10:15         ` Kevin Traynor
2021-10-20 16:32           ` Ferruh Yigit
2021-10-21  2:05             ` lihuisong (C)
2021-10-21  8:30               ` Ferruh Yigit
2021-10-22  2:04                 ` lihuisong (C)
2021-10-26 10:21                   ` Ferruh Yigit
2021-11-08  6:55                     ` lihuisong (C)
2022-04-25  6:42                       ` Min Hu (Connor)
2022-10-20  9:31   ` [PATCH V5] ethdev: fix one address occupies two indexes in MAC addrs Huisong Li
2022-11-16  7:37     ` lihuisong (C)
2022-12-06  8:08     ` lihuisong (C)
2023-01-10  1:00     ` fengchengwen
2023-01-18  8:26     ` Thomas Monjalon
2023-01-18  8:38       ` Thomas Monjalon
2023-01-19 10:09         ` lihuisong (C)
2023-01-19  9:57       ` lihuisong (C)
2023-01-19 14:38         ` Thomas Monjalon
2023-01-28  1:38           ` lihuisong (C)
2023-01-31  6:41     ` [PATCH V6] ethdev: fix one address occupies two entries " Huisong Li
2023-02-01 10:42       ` Thomas Monjalon [this message]
2023-02-01 12:26         ` lihuisong (C)
2023-02-01 13:15     ` [PATCH V7] " Huisong Li
2023-02-01 16:37       ` Thomas Monjalon
2023-02-02  1:11         ` lihuisong (C)
2023-02-02 11:50           ` Thomas Monjalon
2023-02-02 12:19             ` lihuisong (C)
2023-02-02 12:36     ` [PATCH V8] " Huisong Li
2023-02-02 13:11       ` Thomas Monjalon
2023-02-02 18:09       ` Ferruh Yigit
2023-02-02 21:10         ` Thomas Monjalon
2023-02-02 21:50           ` Morten Brørup
2023-02-03  1:56           ` lihuisong (C)
2023-02-03 12:58             ` Ferruh Yigit
2023-02-04  2:57               ` lihuisong (C)
2023-02-09  8:32                 ` lihuisong (C)
2023-02-09 12:45                 ` Ferruh Yigit
2023-02-10  9:54                   ` lihuisong (C)
2023-02-10 12:27                     ` Ferruh Yigit
2023-02-10 13:20                       ` lihuisong (C)
2023-05-16 11:47       ` lihuisong (C)
2023-05-16 14:13         ` Ferruh Yigit
2023-05-17  7:45           ` lihuisong (C)
2023-05-17  8:53             ` Ferruh Yigit
2023-05-17 11:46               ` lihuisong (C)
2023-05-17 13:43                 ` Ferruh Yigit
2023-05-19  3:00     ` [PATCH V9] " Huisong Li
2023-05-19  8:42       ` Ferruh Yigit
2023-05-19  9:21         ` lihuisong (C)
2023-05-19  9:31     ` [PATCH V10] " Huisong Li
2023-05-19 10:45       ` Ferruh Yigit
2022-05-14  2:00 ` [PATCH V3 0/2] ethdev: fix MAC addrs list Min Hu (Connor)
2022-05-14  2:00   ` [PATCH V3 1/2] ethdev: fix one address occupies two indexes in MAC addrs Min Hu (Connor)
2022-05-14  2:00   ` [PATCH V3 2/2] ethdev: document default and non-default MAC address Min Hu (Connor)
2022-05-31 15:22   ` [PATCH V3 0/2] ethdev: fix MAC addrs list Andrew Rybchenko
2022-06-01  6:43     ` Min Hu (Connor)
2022-06-01  6:39   ` [PATCH v4 " Min Hu (Connor)
2022-06-01  6:39     ` [PATCH v4 1/2] ethdev: fix one address occupies two indexes in MAC addrs Min Hu (Connor)
2022-06-01 17:49       ` Andrew Rybchenko
2022-06-02  3:16         ` lihuisong (C)
2022-06-02 13:54           ` Andrew Rybchenko
2022-06-11  9:04             ` lihuisong (C)
2022-06-01  6:39     ` [PATCH v4 2/2] ethdev: document default and non-default MAC address Min Hu (Connor)
2022-06-01 17:49       ` Andrew Rybchenko
2022-06-01 17:49     ` [PATCH v4 0/2] ethdev: fix MAC addrs list Andrew Rybchenko

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