From 47ce649fd30c89d95c420a015f9eef7f215bb386 Mon Sep 17 00:00:00 2001 From: Huisong Li Date: Sat, 15 May 2021 08:52:35 +0800 Subject: [PATCH] net/hns3: remove meaningless packet buffer rollback Packet buffer allocation and hardware pause configuration fail normally when a reset occurs. If the execution fails, rollback of the packet buffer still fails. So this rollback is meaningless. Fixes: 62e3ccc2b94c ("net/hns3: support flow control") Cc: stable@dpdk.org Signed-off-by: Huisong Li Signed-off-by: Min Hu (Connor) --- drivers/net/hns3/hns3_dcb.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/net/hns3/hns3_dcb.c b/drivers/net/hns3/hns3_dcb.c index bea41156a4..8fcb284cf1 100644 --- a/drivers/net/hns3/hns3_dcb.c +++ b/drivers/net/hns3/hns3_dcb.c @@ -1543,7 +1543,7 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns) enum hns3_fc_status fc_status = hw->current_fc_status; enum hns3_fc_mode requested_fc_mode = hw->requested_fc_mode; uint8_t hw_pfc_map = hw->dcb_info.hw_pfc_map; - int ret, status; + int ret; if (pf->tx_sch_mode != HNS3_FLAG_TC_BASE_SCH_MODE && pf->tx_sch_mode != HNS3_FLAG_VNET_BASE_SCH_MODE) @@ -1568,7 +1568,7 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns) ret = hns3_buffer_alloc(hw); if (ret) - return ret; + goto buffer_alloc_fail; hw->current_fc_status = HNS3_FC_STATUS_PFC; hw->requested_fc_mode = HNS3_FC_FULL; @@ -1594,10 +1594,9 @@ hns3_dcb_hw_configure(struct hns3_adapter *hns) pfc_setup_fail: hw->requested_fc_mode = requested_fc_mode; hw->current_fc_status = fc_status; + +buffer_alloc_fail: hw->dcb_info.hw_pfc_map = hw_pfc_map; - status = hns3_buffer_alloc(hw); - if (status) - hns3_err(hw, "recover packet buffer fail! status = %d", status); return ret; } @@ -1801,7 +1800,7 @@ hns3_dcb_pfc_enable(struct rte_eth_dev *dev, struct rte_eth_pfc_conf *pfc_conf) uint8_t pfc_en = hw->dcb_info.pfc_en; uint8_t priority = pfc_conf->priority; uint16_t pause_time = pf->pause_time; - int ret, status; + int ret; pf->pause_time = pfc_conf->fc.pause_time; hns3_get_fc_mode(hw, pfc_conf->fc.mode); @@ -1831,9 +1830,6 @@ pfc_setup_fail: pf->pause_time = pause_time; hw->dcb_info.pfc_en = pfc_en; hw->dcb_info.hw_pfc_map = hw_pfc_map; - status = hns3_buffer_alloc(hw); - if (status) - hns3_err(hw, "recover packet buffer fail: %d", status); return ret; } -- 2.20.1