From patchwork Tue Mar 26 20:08:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Konstantin Taranov X-Patchwork-Id: 13604954 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BD6C513D288; Tue, 26 Mar 2024 20:08:24 +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=1711483706; cv=none; b=RY2CY9WOQrRmlSHpTbD48eXTmsbhBwuLnzLH9U9tbRUGb229McSMzVVfmscZEDVoI6T/aqye/xo2vFGBBtDpC6kf71/6v7OUXtmpLgGLa9t+Fz4+WLdO5W3MWLtkjesJv9dehLemCUAMeoScfowS/4vkZXI4jraosgdUIy5nhP4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711483706; c=relaxed/simple; bh=yOvw/+R5cqnIG0yQOOZPgM8tzI/iZjhMeWOyoluhHq8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=i3KhxjHgU5SOyihbOgjdHi4fLiX/Po2jtd57Axh0YbaWLV3OBuyfs2ebQfW4mZ3C8gr8XieF3CFnnpBhuAvSy/nUQh3wjN8vxnNpFU/2xoOTUz0eHsLUkNX9HDcWOcMj9jBIcsNEohLFqPCqrKjQ+CGylXvXvvC1KSXaPno6vbU= 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=pdT1Ml+z; 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="pdT1Ml+z" Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id 0F1D22083615; Tue, 26 Mar 2024 13:08:18 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 0F1D22083615 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1711483698; bh=Tz4ZLn/8ssU+ygRm6MqyTDKaIru1X/+0Gkkt7R3J2Ug=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pdT1Ml+zb0aCMaY100j7zDv81h5Ta2CxzNvPwg4v4KMkJEaigdRDFNrrAnlrlEVkf BGr1gXTzeZQ+sbtWq7uW7Z2ar0y6/yK+YPIJ06CmV1vcgjbQE4Wbfr53sQ9QE8Slbx ovk8vjxlvWZcylBvFOCXUp4kwo6EygQ4TiqQtPKA= 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 v3 1/4] RDMA/mana_ib: Introduce helpers to create and destroy mana queues Date: Tue, 26 Mar 2024 13:08:05 -0700 Message-Id: <1711483688-24358-2-git-send-email-kotaranov@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1711483688-24358-1-git-send-email-kotaranov@linux.microsoft.com> References: <1711483688-24358-1-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 | 43 ++++++++++++++++++++++++++++ drivers/infiniband/hw/mana/mana_ib.h | 10 +++++++ 2 files changed, 53 insertions(+) diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c index 71e33feee..4524c6b80 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -237,6 +237,49 @@ 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; + + ibdev_dbg(&mdev->ib_dev, + "create_dma_region ret %d gdma_region 0x%llx\n", + err, queue->gdma_region); + + 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);