From nobody Thu Sep 19 01:39:20 2024 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) (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 2375D3C30; Fri, 26 Jul 2024 07:42:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.35 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721979784; cv=none; b=ASIygHKRe41SRmjNIijQCdbMG3jSDjJ4/c7M8iujVb0ohff5oc2aKDgxjeKsD3qjQnzkIyGoG3iasKclpr70inbEUSzBddj2w/BqvchdqwXIJxO4DlSM+qPGKiPvwxcdGz+oJhkblYfBP33EEE7BFzZAG3OykG/MVXp4Lsa1Nmo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721979784; c=relaxed/simple; bh=JQmFk8P1wPUArmo8G9Bh19XTV93zp5zIYy4AuLYz+4M=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=fkJUXM5jYzLZjWpZzVhkVugztan1PZuTGTQuSXHdKPxIFqymbhsY90IENyXfQlfQmIEcmCHDF+CPHK5CCCMlVUVw5aksa91sqsK3DnxaMwFFzUWwtVM58bEDuyRSr/CYdLL3CCY4dbMAj/ueeD3uuE2UYx7IBBX6Cg31OScKa4o= 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=45.249.212.35 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 [172.19.88.234]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4WVfKP6rdLz1S6pN; Fri, 26 Jul 2024 15:20:09 +0800 (CST) Received: from kwepemf100018.china.huawei.com (unknown [7.202.181.17]) by mail.maildlp.com (Postfix) with ESMTPS id 9A3251400CB; Fri, 26 Jul 2024 15:24:37 +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; Fri, 26 Jul 2024 15:24:37 +0800 From: Junxian Huang To: , CC: , , , Subject: [PATCH for-next 2/3] RDMA/hns: Link all uctx to uctx_list on a device Date: Fri, 26 Jul 2024 15:19:09 +0800 Message-ID: <20240726071910.626802-3-huangjunxian6@hisilicon.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20240726071910.626802-1-huangjunxian6@hisilicon.com> References: <20240726071910.626802-1-huangjunxian6@hisilicon.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemf100018.china.huawei.com (7.202.181.17) Content-Type: text/plain; charset="utf-8" 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/infiniba= nd/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 */ }; =20 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 */ }; =20 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; =20 + mutex_lock(&hr_dev->uctx_list_mutex); + list_add(&context->list, &hr_dev->uctx_list); + mutex_unlock(&hr_dev->uctx_list_mutex); + return 0; =20 error_fail_copy_to_udata: @@ -448,6 +452,10 @@ static void hns_roce_dealloc_ucontext(struct ib_uconte= xt *ibcontext) struct hns_roce_ucontext *context =3D to_hr_ucontext(ibcontext); struct hns_roce_dev *hr_dev =3D to_hr_dev(ibcontext->device); =20 + 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_de= v) 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); =20 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_d= ev) =20 spin_lock_init(&hr_dev->sm_lock); =20 + 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); =20 return ret; } --=20 2.33.0