From patchwork Mon Aug 12 12:56:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Junxian Huang X-Patchwork-Id: 13760537 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B0A7A4D8D1; Mon, 12 Aug 2024 13:02:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723467743; cv=none; b=MurS0qfZb4c0g6U2v4Y9G/kriFNWmAsdUNpXOhuo/nCCUlmgZlmFBiyLHKY1z8wbCfWLF3UatbQdJa6mPhHnhis1uVaSV3KaanRgXdYlazRjJ1W/zvI3u4/7oMtWIb19ikgiZjhmgCKfQgSnbSVL4cJj0d8f8Jg6nBWHL9fQxhs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723467743; c=relaxed/simple; bh=JQmFk8P1wPUArmo8G9Bh19XTV93zp5zIYy4AuLYz+4M=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EMJoC6oswV1UVUxwswS2ebOcBEPE5KTevHxWH9GT3SoyhgP4A6+Pvh12DpFFAzcFlozLF11X/HG8A2rMxmMp67QcWzSfGOjyCnHVTHDD+af6EFqxE9zv3VHMWZQbfIVyEs8mzk4Gs6Bd+nBvddL5NrQL0WANHT/+WxZHH8BDY8M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=hisilicon.com; spf=pass smtp.mailfrom=hisilicon.com; arc=none smtp.client-ip=45.249.212.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=hisilicon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hisilicon.com Received: from mail.maildlp.com (unknown [172.19.88.105]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4WjF150JgQzQpjM; Mon, 12 Aug 2024 20:57:45 +0800 (CST) Received: from kwepemf100018.china.huawei.com (unknown [7.202.181.17]) by mail.maildlp.com (Postfix) with ESMTPS id 54E701402E2; Mon, 12 Aug 2024 21:02:17 +0800 (CST) Received: from localhost.localdomain (10.90.30.45) by kwepemf100018.china.huawei.com (7.202.181.17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 12 Aug 2024 21:02:16 +0800 From: Junxian Huang To: , CC: , , , Subject: [PATCH v2 for-next 2/3] RDMA/hns: Link all uctx to uctx_list on a device Date: Mon, 12 Aug 2024 20:56:39 +0800 Message-ID: <20240812125640.1003948-3-huangjunxian6@hisilicon.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20240812125640.1003948-1-huangjunxian6@hisilicon.com> References: <20240812125640.1003948-1-huangjunxian6@hisilicon.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemf100018.china.huawei.com (7.202.181.17) From: Chengchang Tang Link all uctx to uctx_list on a device. Signed-off-by: Chengchang Tang Signed-off-by: Junxian Huang --- drivers/infiniband/hw/hns/hns_roce_device.h | 4 ++++ drivers/infiniband/hw/hns/hns_roce_main.c | 13 +++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h index 0b1e21cb6d2d..93768660569d 100644 --- a/drivers/infiniband/hw/hns/hns_roce_device.h +++ b/drivers/infiniband/hw/hns/hns_roce_device.h @@ -217,6 +217,7 @@ struct hns_roce_ucontext { struct mutex page_mutex; struct hns_user_mmap_entry *db_mmap_entry; u32 config; + struct list_head list; /* link all uctx to uctx_list on hr_dev */ }; struct hns_roce_pd { @@ -1030,6 +1031,9 @@ struct hns_roce_dev { u64 dwqe_page; struct hns_roce_dev_debugfs dbgfs; atomic64_t *dfx_cnt; + + struct list_head uctx_list; /* list of all uctx on this dev */ + struct mutex uctx_list_mutex; /* protect @uctx_list */ }; static inline struct hns_roce_dev *to_hr_dev(struct ib_device *ib_dev) diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index 4cb0af733587..e19871ebc315 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -426,6 +426,10 @@ static int hns_roce_alloc_ucontext(struct ib_ucontext *uctx, if (ret) goto error_fail_copy_to_udata; + mutex_lock(&hr_dev->uctx_list_mutex); + list_add(&context->list, &hr_dev->uctx_list); + mutex_unlock(&hr_dev->uctx_list_mutex); + return 0; error_fail_copy_to_udata: @@ -448,6 +452,10 @@ static void hns_roce_dealloc_ucontext(struct ib_ucontext *ibcontext) struct hns_roce_ucontext *context = to_hr_ucontext(ibcontext); struct hns_roce_dev *hr_dev = to_hr_dev(ibcontext->device); + mutex_lock(&hr_dev->uctx_list_mutex); + list_del(&context->list); + mutex_unlock(&hr_dev->uctx_list_mutex); + if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_CQ_RECORD_DB || hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) mutex_destroy(&context->page_mutex); @@ -943,6 +951,7 @@ static int hns_roce_init_hem(struct hns_roce_dev *hr_dev) static void hns_roce_teardown_hca(struct hns_roce_dev *hr_dev) { hns_roce_cleanup_bitmap(hr_dev); + mutex_destroy(&hr_dev->uctx_list_mutex); if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_CQ_RECORD_DB || hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) @@ -961,6 +970,9 @@ static int hns_roce_setup_hca(struct hns_roce_dev *hr_dev) spin_lock_init(&hr_dev->sm_lock); + INIT_LIST_HEAD(&hr_dev->uctx_list); + mutex_init(&hr_dev->uctx_list_mutex); + if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_CQ_RECORD_DB || hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) { INIT_LIST_HEAD(&hr_dev->pgdir_list); @@ -1000,6 +1012,7 @@ static int hns_roce_setup_hca(struct hns_roce_dev *hr_dev) if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_CQ_RECORD_DB || hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) mutex_destroy(&hr_dev->pgdir_mutex); + mutex_destroy(&hr_dev->uctx_list_mutex); return ret; }