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Date: Fri, 1 May 2015 16:15:46 -0700
From: Mahesh Bandewar <maheshb@...gle.com>
To: Jonathan Toppins <jtoppins@...ulusnetworks.com>
Cc: linux-netdev <netdev@...r.kernel.org>,
Jay Vosburgh <j.vosburgh@...il.com>,
Veaceslav Falico <vfalico@...il.com>,
Andy Gospodarek <gospo@...ulusnetworks.com>,
David Miller <davem@...emloft.net>
Subject: Re: [PATCH linux v1 net-next 4/4] bonding: add netlink support for
sys prio, actor sys mac, and port key
On Fri, May 1, 2015 at 10:24 AM, Jonathan Toppins
<jtoppins@...ulusnetworks.com> wrote:
> From: Andy Gospodarek <gospo@...ulusnetworks.com>
>
> Adds netlink support for the following bonding options:
> * BOND_OPT_AD_ACTOR_SYS_PRIO
> * BOND_OPT_AD_ACTOR_SYSTEM
> * BOND_OPT_AD_USER_PORT_KEY
>
> When setting the actor system mac address we assume the netlink message
> contains a binary mac and not a string representation of a mac.
>
> Signed-off-by: Andy Gospodarek <gospo@...ulusnetworks.com>
> [jt: completed the setting side of the netlink attributes]
> Signed-off-by: Jonathan Toppins <jtoppins@...ulusnetworks.com>
> ---
> drivers/net/bonding/bond_netlink.c | 50 ++++++++++++++++++++++++++++++++++++
> include/uapi/linux/if_link.h | 3 +++
> 2 files changed, 53 insertions(+)
>
> diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
> index 7b11243..d98f770 100644
> --- a/drivers/net/bonding/bond_netlink.c
> +++ b/drivers/net/bonding/bond_netlink.c
> @@ -94,6 +94,10 @@ static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
> [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 },
> [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 },
> [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED },
> + [IFLA_BOND_AD_ACTOR_SYS_PRIO] = { .type = NLA_U16 },
> + [IFLA_BOND_AD_USER_PORT_KEY] = { .type = NLA_U16 },
> + [IFLA_BOND_AD_ACTOR_SYSTEM] = { .type = NLA_BINARY,
> + .len = MAX_ADDR_LEN },
> };
>
> static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = {
> @@ -379,6 +383,36 @@ static int bond_changelink(struct net_device *bond_dev,
> if (err)
> return err;
> }
> + if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) {
> + int actor_sys_prio =
> + nla_get_u16(data[IFLA_BOND_AD_ACTOR_SYS_PRIO]);
> +
> + bond_opt_initval(&newval, actor_sys_prio);
> + err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYS_PRIO, &newval);
> + if (err)
> + return err;
> + }
> +
> + if (data[IFLA_BOND_AD_USER_PORT_KEY]) {
> + int port_key =
> + nla_get_u16(data[IFLA_BOND_AD_USER_PORT_KEY]);
> +
> + bond_opt_initval(&newval, port_key);
> + err = __bond_opt_set(bond, BOND_OPT_AD_USER_PORT_KEY, &newval);
> + if (err)
> + return err;
> + }
> +
> + if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) {
> + if (nla_len(data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN)
> + return -EINVAL;
> +
> + bond_opt_initstr(&newval,
> + nla_data(data[IFLA_BOND_AD_ACTOR_SYSTEM]));
> + err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYSTEM, &newval);
> + if (err)
> + return err;
> + }
> return 0;
> }
>
> @@ -426,6 +460,9 @@ static size_t bond_get_size(const struct net_device *bond_dev)
> nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */
> nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/
> nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/
> + nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */
> + nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */
> + nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */
> 0;
> }
>
> @@ -548,6 +585,19 @@ static int bond_fill_info(struct sk_buff *skb,
> bond->params.ad_select))
> goto nla_put_failure;
>
> + if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO,
> + bond->params.ad_actor_sys_prio))
> + goto nla_put_failure;
> +
> + if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY,
> + bond->params.ad_user_port_key))
> + goto nla_put_failure;
> +
> + if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM,
> + sizeof(bond->params.ad_actor_system),
> + &bond->params.ad_actor_system))
> + goto nla_put_failure;
> +
I think this does not make sense for MODE != 8023AD. Shouldn't this be
inside next block which is for the 802.3ad mode?
> if (BOND_MODE(bond) == BOND_MODE_8023AD) {
> struct ad_info info;
>
> diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
> index d9cd192..6d6e502 100644
> --- a/include/uapi/linux/if_link.h
> +++ b/include/uapi/linux/if_link.h
> @@ -417,6 +417,9 @@ enum {
> IFLA_BOND_AD_LACP_RATE,
> IFLA_BOND_AD_SELECT,
> IFLA_BOND_AD_INFO,
> + IFLA_BOND_AD_ACTOR_SYS_PRIO,
> + IFLA_BOND_AD_USER_PORT_KEY,
> + IFLA_BOND_AD_ACTOR_SYSTEM,
Even though this is available / stored in bond->param, I feel that
these belong to IFLA_BOND_AD_INFO_, no?
> __IFLA_BOND_MAX,
> };
>
> --
> 1.7.10.4
>
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