From: Chengchang Tang Date: Thu, 14 Jan 2021 13:33:36 +0000 (+0800) Subject: net/hns3: fix dump register out of range X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=acb3260fac5c93d953876172ce322e9f2801a33c;p=dpdk.git net/hns3: fix dump register out of range 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") Cc: stable@dpdk.org Signed-off-by: Chengchang Tang Signed-off-by: Lijun Ou --- 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] +