提交 f73aa7c9 编写于 作者: W wangsirong 提交者: Zheng Zengkai

RDMA/hns: Fix wrong timer context buffer page size

mainline inclusion
from mainline-v5.12-rc1
commit 5e6370d7
category: bugfix
bugzilla: 174002
CVE:NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5e6370d7cc75134b0eb5b15916aab40b628db9e1

----------------------------------------------------------------------

    The HEM page size for QPC timer and CQC timer is always 4K and there's no
    need to calculate a different size by the hns driver, otherwise the ROCEE
    may access an invalid address.

    Fixes: 719d1341 ("RDMA/hns: Remove duplicated hem page size config code")
    Link: https://lore.kernel.org/r/1621589395-2435-4-git-send-email-liweihang@huawei.comSigned-off-by: NXi Wang <wangxi11@huawei.com>
Signed-off-by: NWeihang Li <liweihang@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: NChunZhi Hu <huchunzhi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
上级 a36573dc
......@@ -2045,12 +2045,6 @@ static void set_hem_page_size(struct hns_roce_dev *hr_dev)
calc_pg_sz(caps->max_cqes, caps->cqe_sz, caps->cqe_hop_num,
1, &caps->cqe_buf_pg_sz, &caps->cqe_ba_pg_sz, HEM_TYPE_CQE);
if (caps->cqc_timer_entry_sz)
calc_pg_sz(caps->num_cqc_timer, caps->cqc_timer_entry_sz,
caps->cqc_timer_hop_num, caps->cqc_timer_bt_num,
&caps->cqc_timer_buf_pg_sz,
&caps->cqc_timer_ba_pg_sz, HEM_TYPE_CQC_TIMER);
/* SRQ */
if (caps->flags & HNS_ROCE_CAP_FLAG_SRQ) {
calc_pg_sz(caps->num_srqs, caps->srqc_entry_sz,
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册