From patchwork Mon Apr 8 09:14:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Konstantin Taranov X-Patchwork-Id: 13620840 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2A66A446A9; Mon, 8 Apr 2024 09:14:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712567662; cv=none; b=DDRVUatppZ9xBJfuHROKrQ8qSSjoMKiMSiOlgD9yubOgy4Ev4WV4YliVXLOf1dL9oZkI7aAG1WQE5DdsJLpnxPDdBhwfN9HyztCaB88cmTkro1S1GmxpgPq0sEJ57uYvtTi6nRsdmLSzreBJgS6rNhtSQK1ic05jVAodVhentAE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712567662; c=relaxed/simple; bh=gUHevzU0cPcXgEl9gRb6H7D7uDQ4r+MrH3c/z3hde1s=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=Tdm4BqL1m4xhPTCg18z+N/Q9A4zLle8jz70iayz8btNGZeuLZWwFs/tAktI+eyaIlIOGmtMlsnIDQbLld1kDs1iXnaBpla5vmU8wFIvqEz/Zk1tdclG182TkBHv6x5+R2C+N8+eAILzKeRW9ouYuuzz+LtoPm1vH2eJRFviMKmI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=eFsUzKeF; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="eFsUzKeF" Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id 91DF820EA432; Mon, 8 Apr 2024 02:14:15 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 91DF820EA432 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1712567655; bh=eqQznt0cFKL45o3sDZcg8Mzg9YfDlEveK95RPGvVGf8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eFsUzKeF+gOXyLHFfGiLe5xY9C+FSWuzRtWn8PmU3stTpXgrFUxHC8/hzfSlMXGLE 4FuYwfuzdS67SpJccxUqzHhTs0xeqnNxf4wAninnRCqYNSMmkVe6LuD1u/aeiZXDNt KkE4h5WFI+H1rxUiQCTZtuEVe8wBSWp/Vpglp+UY= From: Konstantin Taranov To: kotaranov@microsoft.com, sharmaajay@microsoft.com, longli@microsoft.com, jgg@ziepe.ca, leon@kernel.org Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH rdma-next v4 1/4] RDMA/mana_ib: Introduce helpers to create and destroy mana queues Date: Mon, 8 Apr 2024 02:14:03 -0700 Message-Id: <1712567646-5247-2-git-send-email-kotaranov@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1712567646-5247-1-git-send-email-kotaranov@linux.microsoft.com> References: <1712567646-5247-1-git-send-email-kotaranov@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: From: Konstantin Taranov Intoduce helpers to work with mana ib queues (struct mana_ib_queue). A queue always consists of umem, gdma_region, and id. A queue can become a WQ or a CQ. Signed-off-by: Konstantin Taranov Reviewed-by: Long Li --- drivers/infiniband/hw/mana/main.c | 39 ++++++++++++++++++++++++++++ drivers/infiniband/hw/mana/mana_ib.h | 10 +++++++ 2 files changed, 49 insertions(+) diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c index 71e33feee..2d9d7a519 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -237,6 +237,45 @@ void mana_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) ibdev_dbg(ibdev, "Failed to destroy doorbell page %d\n", ret); } +int mana_ib_create_queue(struct mana_ib_dev *mdev, u64 addr, u32 size, + struct mana_ib_queue *queue) +{ + struct ib_umem *umem; + int err; + + queue->umem = NULL; + queue->id = INVALID_QUEUE_ID; + queue->gdma_region = GDMA_INVALID_DMA_REGION; + + umem = ib_umem_get(&mdev->ib_dev, addr, size, IB_ACCESS_LOCAL_WRITE); + if (IS_ERR(umem)) { + err = PTR_ERR(umem); + ibdev_dbg(&mdev->ib_dev, "Failed to get umem, %d\n", err); + return err; + } + + err = mana_ib_create_zero_offset_dma_region(mdev, umem, &queue->gdma_region); + if (err) { + ibdev_dbg(&mdev->ib_dev, "Failed to create dma region, %d\n", err); + goto free_umem; + } + queue->umem = umem; + + return 0; +free_umem: + ib_umem_release(umem); + return err; +} + +void mana_ib_destroy_queue(struct mana_ib_dev *mdev, struct mana_ib_queue *queue) +{ + /* Ignore return code as there is not much we can do about it. + * The error message is printed inside. + */ + mana_ib_gd_destroy_dma_region(mdev, queue->gdma_region); + ib_umem_release(queue->umem); +} + static int mana_ib_gd_first_dma_region(struct mana_ib_dev *dev, struct gdma_context *gc, diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h index f83390eeb..859fd3bfc 100644 --- a/drivers/infiniband/hw/mana/mana_ib.h +++ b/drivers/infiniband/hw/mana/mana_ib.h @@ -45,6 +45,12 @@ struct mana_ib_adapter_caps { u32 max_inline_data_size; }; +struct mana_ib_queue { + struct ib_umem *umem; + u64 gdma_region; + u64 id; +}; + struct mana_ib_dev { struct ib_device ib_dev; struct gdma_dev *gdma_dev; @@ -169,6 +175,10 @@ int mana_ib_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *umem, int mana_ib_gd_destroy_dma_region(struct mana_ib_dev *dev, mana_handle_t gdma_region); +int mana_ib_create_queue(struct mana_ib_dev *mdev, u64 addr, u32 size, + struct mana_ib_queue *queue); +void mana_ib_destroy_queue(struct mana_ib_dev *mdev, struct mana_ib_queue *queue); + struct ib_wq *mana_ib_create_wq(struct ib_pd *pd, struct ib_wq_init_attr *init_attr, struct ib_udata *udata);