From ecb4db5c3590aa956b4b2c352081a5b632d1f9f9 Mon Sep 17 00:00:00 2001
From: Haoyue Xu <xuhaoyue1@hisilicon.com>
Date: Thu, 14 Jul 2022 21:43:51 +0800
Subject: [PATCH 1/1] RDMA/hns: Fix incorrect clearing of interrupt status
register
Git-commit: ecb4db5c3590aa956b4b2c352081a5b632d1f9f9
Patch-mainline: v6.0
References: git-fixes
The driver will clear all the interrupts in the same area
when the driver handles the interrupt of type AEQ overflow.
It should only set the interrupt status bit of type AEQ overflow.
Fixes: a5073d6054f7 ("RDMA/hns: Add eq support of hip08")
Link: https://lore.kernel.org/r/20220714134353.16700-4-liangwenpeng@huawei.com
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
---
drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index bb6073635c53..35bf58fcaeb3 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -6001,8 +6001,8 @@ static irqreturn_t hns_roce_v2_msix_interrupt_abn(int irq, void *dev_id)
dev_err(dev, "AEQ overflow!\n");
- int_st |= 1 << HNS_ROCE_V2_VF_INT_ST_AEQ_OVERFLOW_S;
- roce_write(hr_dev, ROCEE_VF_ABN_INT_ST_REG, int_st);
+ roce_write(hr_dev, ROCEE_VF_ABN_INT_ST_REG,
+ 1 << HNS_ROCE_V2_VF_INT_ST_AEQ_OVERFLOW_S);
/* Set reset level for reset_event() */
if (ops->set_default_reset_request)
--
2.38.0.1.gee35aeee4b76