linux-kernel - [PATCH for-next 0/3] RDMA: Provide an API for drivers to disassociate mmap pages

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Message-ID: <20240726071910.626802-1-huangjunxian6@hisilicon.com>
Date: Fri, 26 Jul 2024 15:19:07 +0800
From: Junxian Huang <huangjunxian6@...ilicon.com>
To: <jgg@...pe.ca>, <leon@...nel.org>
CC: <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
	<linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-next 0/3] RDMA: Provide an API for drivers to disassociate mmap pages

Provide an API rdma_user_mmap_disassociate() for drivers to disassociate
mmap pages. Use this API in hns to prevent userspace from ringing doorbell
when HW is reset.

Chengchang Tang (3):
  RDMA/core: Provide rdma_user_mmap_disassociate() to disassociate mmap
    pages
  RDMA/hns: Link all uctx to uctx_list on a device
  RDMA/hns: Disassociate mmap pages for all uctx when HW is being reset

 drivers/infiniband/core/ib_core_uverbs.c    | 85 +++++++++++++++++++++
 drivers/infiniband/core/rdma_core.h         |  1 -
 drivers/infiniband/core/uverbs_main.c       | 64 ----------------
 drivers/infiniband/hw/hns/hns_roce_device.h |  4 +
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  | 15 ++++
 drivers/infiniband/hw/hns/hns_roce_main.c   | 13 ++++
 include/rdma/ib_verbs.h                     |  3 +
 7 files changed, 120 insertions(+), 65 deletions(-)

--
2.33.0