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examples/l3fwd-power: fix Rx interrupt disabling

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Interrupt will not be received when disabling RX interrupt without
synchronization mechanism sometimes which leads to wake up issue.
Add spinlock to fix it.

Fixes: b736d64787 ("examples/l3fwd-power: disable Rx interrupt when waking up")
Cc: stable@dpdk.org

Signed-off-by: Xiao Zhang <xiao.zhang@intel.com>
Reviewed-by: Marvin Liu <yong.liu@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>
This commit is contained in:
Xiao Zhang 2019-09-11 00:10:14 +08:00 committed by Thomas Monjalon
parent 39d21077e5
commit 0412cfeff9
1 changed files with 2 additions and 0 deletions
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examples/l3fwd-power/main.c
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@ -880,7 +880,9 @@ sleep_until_rx_interrupt(int num)
port_id = ((uintptr_t)data) >> CHAR_BIT; port_id = ((uintptr_t)data) >> CHAR_BIT;
queue_id = ((uintptr_t)data) & queue_id = ((uintptr_t)data) &
RTE_LEN2MASK(CHAR_BIT, uint8_t); RTE_LEN2MASK(CHAR_BIT, uint8_t);
rte_spinlock_lock(&(locks[port_id]));
rte_eth_dev_rx_intr_disable(port_id, queue_id); rte_eth_dev_rx_intr_disable(port_id, queue_id);
rte_spinlock_unlock(&(locks[port_id]));
RTE_LOG(INFO, L3FWD_POWER, RTE_LOG(INFO, L3FWD_POWER,
"lcore %u is waked up from rx interrupt on" "lcore %u is waked up from rx interrupt on"
" port %d queue %d\n", " port %d queue %d\n",