[dpdk-stable] patch 'net/hns3: fix dump register out of range' has been queued to stable release 20.11.1

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/07/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/9c81b4b8883ec958ac04f9a81311c35e7487ae8d

Thanks.

Luca Boccassi

---
>From 9c81b4b8883ec958ac04f9a81311c35e7487ae8d Mon Sep 17 00:00:00 2001
From: Chengchang Tang <tangchengchang at huawei.com>
Date: Thu, 14 Jan 2021 21:33:36 +0800
Subject: [PATCH] net/hns3: fix dump register out of range

[ upstream commit acb3260fac5c93d953876172ce322e9f2801a33c ]

Currently, when dump the queue interrupt registers, the number of
registers that should be dumped is calculated from num_msi. But the
value of num_msi includes the number of misc interrupts. So, for some
hardware version, like kupeng930, it will lead to an illegal access.

This patch replace num_msi with intr_tqps_num which indicate the
number of interrupts used by the tqps.

Fixes: 936eda25e8da ("net/hns3: support dump register")

Signed-off-by: Chengchang Tang <tangchengchang at huawei.com>
Signed-off-by: Lijun Ou <oulijun at huawei.com>
---
 drivers/net/hns3/hns3_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hns3/hns3_regs.c b/drivers/net/hns3/hns3_regs.c
index 775e0965f7..f2cb465eed 100644
--- a/drivers/net/hns3/hns3_regs.c
+++ b/drivers/net/hns3/hns3_regs.c
@@ -300,7 +300,7 @@ hns3_direct_access_regs(struct hns3_hw *hw, uint32_t *data)
 	}
 
 	reg_num = sizeof(tqp_intr_reg_addrs) / sizeof(uint32_t);
-	for (j = 0; j < hw->num_msi; j++) {
+	for (j = 0; j < hw->intr_tqps_num; j++) {
 		reg_offset = HNS3_TQP_INTR_REG_SIZE * j;
 		for (i = 0; i < reg_num; i++)
 			*data++ = hns3_read_dev(hw, tqp_intr_reg_addrs[i] +
-- 
2.29.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-02-05 11:18:36.992602632 +0000
+++ 0173-net-hns3-fix-dump-register-out-of-range.patch	2021-02-05 11:18:29.130697280 +0000
@@ -1 +1 @@
-From acb3260fac5c93d953876172ce322e9f2801a33c Mon Sep 17 00:00:00 2001
+From 9c81b4b8883ec958ac04f9a81311c35e7487ae8d Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit acb3260fac5c93d953876172ce322e9f2801a33c ]
+
@@ -15 +16,0 @@
-Cc: stable at dpdk.org