DPDK patches and discussions
 help / color / mirror / Atom feed
From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: "Min Hu (Connor)" <humin29@huawei.com>, dev@dpdk.org
Cc: ferruh.yigit@intel.com, thomas@monjalon.net
Subject: Re: [dpdk-dev] [PATCH] ethdev: fix one MAC address occupies two index in mac addrs
Date: Wed, 22 Sep 2021 09:39:49 +0300
Message-ID: <c2464094-9ceb-3b19-5aa1-6f01376923b6@oktetlabs.ru> (raw)
In-Reply-To: <20210922033630.41130-1-humin29@huawei.com>

On 9/22/21 6:36 AM, Min Hu (Connor) wrote:
> From: Huisong Li <lihuisong@huawei.com>
> 
> Use the testpmd to perform the following operations:
> 1) mac_addr add 0 00:18:2D:00:00:90
> 2) mac_addr add 0 00:18:2D:00:00:91
> 3) mac_addr add 0 00:18:2D:00:00:92
> 4) mac_addr set 0 00:18:2D:00:00:91
> 5) show port 0 macs
> Number of MAC address added: 4
>   00:18:2D:00:00:91
>   00:18:2D:00:00:90
>   00:18:2D:00:00:91
>   00:18:2D:00:00:92
> 
> This is due to the reason that if the address has been added as a
> non-default MAC address by rte_eth_dev_mac_addr_add API, it doesn't remove
> from dev->data->mac_addrs[] when set default MAC address with the same
> address.
> 
> Fixes: 854d8ad4ef68 ("ethdev: add default mac address modifier")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Huisong Li <lihuisong@huawei.com>
> Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
> ---
>  lib/ethdev/rte_ethdev.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
> index daf5ca9242..77657a3314 100644
> --- a/lib/ethdev/rte_ethdev.c
> +++ b/lib/ethdev/rte_ethdev.c
> @@ -4360,6 +4360,7 @@ int
>  rte_eth_dev_default_mac_addr_set(uint16_t port_id, struct rte_ether_addr *addr)
>  {
>  	struct rte_eth_dev *dev;
> +	int index;
>  	int ret;
>  
>  	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
> @@ -4381,6 +4382,20 @@ rte_eth_dev_default_mac_addr_set(uint16_t port_id, struct rte_ether_addr *addr)
>  	if (ret < 0)
>  		return ret;
>  
> +	/*
> +	 * If the address has been added as a non-default MAC address by
> +	 * rte_eth_dev_mac_addr_add API, it should be removed from
> +	 * dev->data->mac_addrs[].
> +	 */
> +	index = eth_dev_get_mac_addr_index(port_id, addr);
> +	if (index > 0) {
> +		/* remove address in NIC data structure */
> +		rte_ether_addr_copy(&null_mac_addr,
> +				    &dev->data->mac_addrs[index]);
> +		/* reset pool bitmap */
> +		dev->data->mac_pool_sel[index] = 0;
> +	}
> +
>  	/* Update default address in NIC data structure */
>  	rte_ether_addr_copy(addr, &dev->data->mac_addrs[0]);
>  
> 

If I change default MAC to something else later, should the old
default MAC be returned to some specific pools? I guess it is
hard to do. If the change is accepted, the behaviour must be
documented in rte_eth_dev_default_mac_addr_set() description.

  reply	other threads:[~2021-09-22  6:39 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-22  3:36 Min Hu (Connor)
2021-09-22  6:39 ` Andrew Rybchenko [this message]
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)
2022-05-14  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=c2464094-9ceb-3b19-5aa1-6f01376923b6@oktetlabs.ru \
    --to=andrew.rybchenko@oktetlabs.ru \
    --cc=dev@dpdk.org \
    --cc=ferruh.yigit@intel.com \
    --cc=humin29@huawei.com \
    --cc=thomas@monjalon.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror http://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ http://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git