[dpdk-stable] [PATCH 17.11] net/bonding: fix reset active slave
Yongseok Koh
yskoh at mellanox.com
Tue Jul 23 03:25:43 CEST 2019
> On Jul 19, 2019, at 1:42 AM, Rybalchenko, Kirill <kirill.rybalchenko at intel.com> wrote:
>
> From: Hari Kumar Vemula <hari.kumarx.vemula at intel.com>
>
> [ backported from upstream commit 7f949ae391527200266afa59097317ef0047111e ]
>
> test_alb_reply_from_client test fails due to incorrect active slave array's index. This was due to invalid active slave count.
>
> Count of internals->active_slave is not updated even when active slave is deactivated.
> Hence active slave count always keeps incrementing beyond the actual active slaves.
>
> Fix is to set the internals->active_slave to starting index 0 whenever it exceeds the number of slaves in active slave list and also update the active slave count during slave de-activation.
>
> Fixes: e1110e977648 ("net/bonding: fix Rx slave fairness")
> Cc: stable at dpdk.org
>
> Signed-off-by: Hari Kumar Vemula <hari.kumarx.vemula at intel.com>
> Acked-by: Radu Nicolau <radu.nicolau at intel.com
> Acked-by: Chas Williams <chas3 at att.com>
> ---
Hi,
You might probably see my email.
This patch has been merged from upstream.
Thanks,
Yongseok
> drivers/net/bonding/rte_eth_bond_api.c | 6 ++++++ drivers/net/bonding/rte_eth_bond_pmd.c | 6 +++---
> 2 files changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
> index f4ca0a3..5f46dff 100644
> --- a/drivers/net/bonding/rte_eth_bond_api.c
> +++ b/drivers/net/bonding/rte_eth_bond_api.c
> @@ -158,6 +158,12 @@ deactivate_slave(struct rte_eth_dev *eth_dev, uint16_t port_id)
> RTE_ASSERT(active_count < RTE_DIM(internals->active_slaves));
> internals->active_slave_count = active_count;
>
> + /* Resetting active_slave when reaches to max
> + * no of slaves in active list
> + */
> + if (internals->active_slave >= active_count)
> + internals->active_slave = 0;
> +
> if (eth_dev->data->dev_started) {
> if (internals->mode == BONDING_MODE_8023AD) {
> bond_mode_8023ad_start(eth_dev); diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
> index 44cf61b..410f9d5 100644
> --- a/drivers/net/bonding/rte_eth_bond_pmd.c
> +++ b/drivers/net/bonding/rte_eth_bond_pmd.c
> @@ -111,7 +111,7 @@ bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
> active_slave = 0;
> }
>
> - if (++internals->active_slave == slave_count)
> + if (++internals->active_slave >= slave_count)
> internals->active_slave = 0;
> return num_rx_total;
> }
> @@ -315,7 +315,7 @@ bond_ethdev_rx_burst_8023ad_fast_queue(void *queue, struct rte_mbuf **bufs,
> active_slave = 0;
> }
>
> - if (++internals->active_slave == slave_count)
> + if (++internals->active_slave >= slave_count)
> internals->active_slave = 0;
>
> return num_rx_total;
> @@ -494,7 +494,7 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
> idx = 0;
> }
>
> - if (++internals->active_slave == slave_count)
> + if (++internals->active_slave >= slave_count)
> internals->active_slave = 0;
>
> return num_rx_total;
> --
> 2.7.4
>
> <0001-net-bonding-fix-reset-active-slave.patch>
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