From: Hyunchul Lee <hyc.lee@gmail.com> mainline inclusion from mainline-5.17-rc1 commit 4d02c4fdc0e256b493f9a3b604c7ff18f0019f17 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I60T7G CVE: NA Reference: https://git.kernel.org/torvalds/linux/c/4d02c4fdc0e2 ------------------------------- Due to restriction that cannot handle multiple buffer descriptor structures, decrease the maximum read/write size for Windows clients. And set the maximum fragmented receive size in consideration of the receive queue size. Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Zhong Jinghua <zhongjinghua@huawei.com> --- fs/ksmbd/transport_rdma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c index f0b17da1cac2..86fd64511512 100644 --- a/fs/ksmbd/transport_rdma.c +++ b/fs/ksmbd/transport_rdma.c @@ -80,7 +80,7 @@ static int smb_direct_max_fragmented_recv_size = 1024 * 1024; /* The maximum single-message size which can be received */ static int smb_direct_max_receive_size = 8192; -static int smb_direct_max_read_write_size = 1024 * 1024; +static int smb_direct_max_read_write_size = 1048512; static int smb_direct_max_outstanding_rw_ops = 8; @@ -1908,7 +1908,9 @@ static int smb_direct_prepare(struct ksmbd_transport *t) st->max_send_size = min_t(int, st->max_send_size, le32_to_cpu(req->max_receive_size)); st->max_fragmented_send_size = - le32_to_cpu(req->max_fragmented_size); + le32_to_cpu(req->max_fragmented_size); + st->max_fragmented_recv_size = + (st->recv_credit_max * st->max_recv_size) / 2; ret = smb_direct_send_negotiate_response(st, ret); out: -- 2.31.1