From 2993075dc253484ba3c87996981f32468aa86cbd Mon Sep 17 00:00:00 2001 From: Somnath Kotur Date: Thu, 10 Sep 2020 18:56:03 -0700 Subject: [PATCH] net/bnxt: add separate mutex for FW health check def_cp_lock was added to sync race between dev_configure and int_handler. It should not be used to synchronize scheduling of FW health check between dev_start and async event handler as well, use a separate mutex for the same. Fixes: a73b8e939f10 ("net/bnxt: fix race between start and interrupt handler") Cc: stable@dpdk.org Signed-off-by: Somnath Kotur Reviewed-by: Sriharsha Basavapatna Reviewed-by: Kalesh AP Reviewed-by: Ajit Khaparde --- drivers/net/bnxt/bnxt.h | 1 + drivers/net/bnxt/bnxt_ethdev.c | 16 ++++++++++++---- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h index f0b0800151..bb265999d4 100644 --- a/drivers/net/bnxt/bnxt.h +++ b/drivers/net/bnxt/bnxt.h @@ -712,6 +712,7 @@ struct bnxt { rte_iova_t hwrm_short_cmd_req_dma_addr; rte_spinlock_t hwrm_lock; pthread_mutex_t def_cp_lock; + pthread_mutex_t health_check_lock; uint16_t max_req_len; uint16_t max_resp_len; uint16_t hwrm_max_ext_req_len; diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index 7c27e2435a..05e9a6abbf 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -1252,9 +1252,7 @@ static int bnxt_dev_start_op(struct rte_eth_dev *eth_dev) eth_dev->rx_pkt_burst = bnxt_receive_function(eth_dev); eth_dev->tx_pkt_burst = bnxt_transmit_function(eth_dev); - pthread_mutex_lock(&bp->def_cp_lock); bnxt_schedule_fw_health_check(bp); - pthread_mutex_unlock(&bp->def_cp_lock); return 0; @@ -4675,17 +4673,22 @@ void bnxt_schedule_fw_health_check(struct bnxt *bp) { uint32_t polling_freq; + pthread_mutex_lock(&bp->health_check_lock); + if (!bnxt_is_recovery_enabled(bp)) - return; + goto done; if (bp->flags & BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED) - return; + goto done; polling_freq = bp->recovery_info->driver_polling_freq; rte_eal_alarm_set(US_PER_MS * polling_freq, bnxt_check_fw_health, (void *)bp); bp->flags |= BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED; + +done: + pthread_mutex_unlock(&bp->health_check_lock); } static void bnxt_cancel_fw_health_check(struct bnxt *bp) @@ -5473,6 +5476,10 @@ bnxt_init_locks(struct bnxt *bp) err = pthread_mutex_init(&bp->def_cp_lock, NULL); if (err) PMD_DRV_LOG(ERR, "Unable to initialize def_cp_lock\n"); + + err = pthread_mutex_init(&bp->health_check_lock, NULL); + if (err) + PMD_DRV_LOG(ERR, "Unable to initialize health_check_lock\n"); return err; } @@ -5884,6 +5891,7 @@ bnxt_uninit_locks(struct bnxt *bp) { pthread_mutex_destroy(&bp->flow_lock); pthread_mutex_destroy(&bp->def_cp_lock); + pthread_mutex_destroy(&bp->health_check_lock); if (bp->rep_info) { pthread_mutex_destroy(&bp->rep_info->vfr_lock); pthread_mutex_destroy(&bp->rep_info->vfr_start_lock); -- 2.20.1