From nobody Mon Dec 29 23:45:21 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14539C61D9D for ; Thu, 23 Nov 2023 03:10:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344591AbjKWDKa (ORCPT ); Wed, 22 Nov 2023 22:10:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344449AbjKWDKV (ORCPT ); Wed, 22 Nov 2023 22:10:21 -0500 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 57A23D48; Wed, 22 Nov 2023 19:10:24 -0800 (PST) Received: by linux.microsoft.com (Postfix, from userid 1004) id E4D7020B74C4; Wed, 22 Nov 2023 19:10:23 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E4D7020B74C4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxonhyperv.com; s=default; t=1700709023; bh=zge+TQFwXGx9zNXcHD09zsfe5McbZNNhO/IEkAckKVM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iAFN63n9SE1RgVIab3JOrK9ll9qHaKIFkOz8tMFxWp5qDGZ71cWZNOmRwkCZtwU4p g4xt8dsaR53C75JBszyExnLp4fmqRQaVt18Gou3A5SMDCQu6VUbjtTO/rvF9foc92P qwEYH83jEIwPXG5OOQkt3vDC26G3laTw4DSzG0SU= From: longli@linuxonhyperv.com To: Jason Gunthorpe , Leon Romanovsky , Ajay Sharma , Dexuan Cui , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-rdma@vger.kernel.org, linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Long Li Subject: [Patch v1 4/4] RDMA/mana_ib: query device capabilities Date: Wed, 22 Nov 2023 19:10:10 -0800 Message-Id: <1700709010-22042-5-git-send-email-longli@linuxonhyperv.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1700709010-22042-1-git-send-email-longli@linuxonhyperv.com> References: <1700709010-22042-1-git-send-email-longli@linuxonhyperv.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Long Li With RDMA device handle created, use it to query on hardware capabilities and cache this information for future query requests to the driver. Signed-off-by: Long Li --- drivers/infiniband/hw/mana/cq.c | 2 +- drivers/infiniband/hw/mana/device.c | 6 +++ drivers/infiniband/hw/mana/main.c | 59 +++++++++++++++++++++++----- drivers/infiniband/hw/mana/mana_ib.h | 51 ++++++++++++++++++++++++ drivers/infiniband/hw/mana/qp.c | 6 ++- include/net/mana/gdma.h | 1 + 6 files changed, 112 insertions(+), 13 deletions(-) diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/c= q.c index d141cab8a1e6..71064f17c235 100644 --- a/drivers/infiniband/hw/mana/cq.c +++ b/drivers/infiniband/hw/mana/cq.c @@ -26,7 +26,7 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib= _cq_init_attr *attr, return err; } =20 - if (attr->cqe > MAX_SEND_BUFFERS_PER_QUEUE) { + if (attr->cqe > mdev->adapter_caps.max_requester_sq_size) { ibdev_dbg(ibdev, "CQE %d exceeding limit\n", attr->cqe); return -EINVAL; } diff --git a/drivers/infiniband/hw/mana/device.c b/drivers/infiniband/hw/ma= na/device.c index 5e5aa75230c2..06f53df072bb 100644 --- a/drivers/infiniband/hw/mana/device.c +++ b/drivers/infiniband/hw/mana/device.c @@ -99,6 +99,12 @@ static int mana_ib_probe(struct auxiliary_device *adev, goto free_error_eq; } =20 + ret =3D mana_ib_query_adapter_caps(dev); + if (ret) { + ibdev_dbg(&dev->ib_dev, "Failed to get device caps"); + goto destroy_adapter; + } + ret =3D ib_register_device(&dev->ib_dev, "mana_%d", mdev->gdma_context->dev); if (ret) diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana= /main.c index 4f4343d14041..bf27fa395a67 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -486,18 +486,14 @@ int mana_ib_get_port_immutable(struct ib_device *ibde= v, u32 port_num, int mana_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *p= rops, struct ib_udata *uhw) { - props->max_qp =3D MANA_MAX_NUM_QUEUES; - props->max_qp_wr =3D MAX_SEND_BUFFERS_PER_QUEUE; - - /* - * max_cqe could be potentially much bigger. - * As this version of driver only support RAW QP, set it to the same - * value as max_qp_wr - */ - props->max_cqe =3D MAX_SEND_BUFFERS_PER_QUEUE; + struct mana_ib_dev *dev =3D container_of(ibdev, + struct mana_ib_dev, ib_dev); =20 + props->max_qp =3D dev->adapter_caps.max_qp_count; + props->max_qp_wr =3D dev->adapter_caps.max_requester_sq_size; + props->max_cqe =3D dev->adapter_caps.max_requester_sq_size; + props->max_mr =3D dev->adapter_caps.max_mr_count; props->max_mr_size =3D MANA_IB_MAX_MR_SIZE; - props->max_mr =3D MANA_IB_MAX_MR; props->max_send_sge =3D MAX_TX_WQE_SGL_ENTRIES; props->max_recv_sge =3D MAX_RX_WQE_SGL_ENTRIES; =20 @@ -624,3 +620,46 @@ int mana_ib_create_error_eq(struct mana_ib_dev *dev) =20 return 0; } + +int mana_ib_query_adapter_caps(struct mana_ib_dev *dev) +{ + struct mana_ib_query_adapter_caps_resp resp =3D {}; + struct mana_ib_query_adapter_caps_req req =3D {}; + struct mana_ib_adapter_caps *caps =3D &dev->adapter_caps; + int err; + + mana_gd_init_req_hdr(&req.hdr, MANA_IB_GET_ADAPTER_CAP, sizeof(req), + sizeof(resp)); + req.hdr.resp.msg_version =3D GDMA_MESSAGE_V3; + req.hdr.dev_id =3D dev->gdma_dev->dev_id; + + err =3D mana_gd_send_request(dev->gdma_dev->gdma_context, sizeof(req), + &req, sizeof(resp), &resp); + + if (err) { + ibdev_err(&dev->ib_dev, + "Failed to query adapter caps err %d", err); + return err; + } + + caps->max_sq_id =3D resp.max_sq_id; + caps->max_rq_id =3D resp.max_rq_id; + caps->max_cq_id =3D resp.max_cq_id; + caps->max_qp_count =3D resp.max_qp_count; + caps->max_cq_count =3D resp.max_cq_count; + caps->max_mr_count =3D resp.max_mr_count; + caps->max_pd_count =3D resp.max_pd_count; + caps->max_inbound_read_limit =3D resp.max_inbound_read_limit; + caps->max_outbound_read_limit =3D resp.max_outbound_read_limit; + caps->mw_count =3D resp.mw_count; + caps->max_srq_count =3D resp.max_srq_count; + caps->max_requester_sq_size =3D resp.max_requester_sq_size; + caps->max_responder_sq_size =3D resp.max_responder_sq_size; + caps->max_requester_rq_size =3D resp.max_requester_rq_size; + caps->max_responder_rq_size =3D resp.max_responder_rq_size; + caps->max_inline_data_size =3D resp.max_inline_data_size; + caps->max_send_wqe_size =3D MAX_TX_WQE_SGL_ENTRIES; + caps->max_recv_wqe_size =3D MAX_RX_WQE_SGL_ENTRIES; + + return 0; +} diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/m= ana/mana_ib.h index 4286caf0d67c..d7a56b075fbc 100644 --- a/drivers/infiniband/hw/mana/mana_ib.h +++ b/drivers/infiniband/hw/mana/mana_ib.h @@ -27,11 +27,33 @@ */ #define MANA_IB_MAX_MR 0xFFFFFFu =20 +struct mana_ib_adapter_caps { + u32 max_sq_id; + u32 max_rq_id; + u32 max_cq_id; + u32 max_qp_count; + u32 max_cq_count; + u32 max_mr_count; + u32 max_pd_count; + u32 max_inbound_read_limit; + u32 max_outbound_read_limit; + u32 mw_count; + u32 max_srq_count; + u32 max_requester_sq_size; + u32 max_responder_sq_size; + u32 max_requester_rq_size; + u32 max_responder_rq_size; + u32 max_send_wqe_size; + u32 max_recv_wqe_size; + u32 max_inline_data_size; +}; + struct mana_ib_dev { struct ib_device ib_dev; struct gdma_dev *gdma_dev; struct gdma_queue *fatal_err_eq; mana_handle_t adapter_handle; + struct mana_ib_adapter_caps adapter_caps; struct xarray rq_to_qp_lookup_table; }; =20 @@ -96,6 +118,7 @@ struct mana_ib_rwq_ind_table { }; =20 enum mana_ib_command_code { + MANA_IB_GET_ADAPTER_CAP =3D 0x30001, MANA_IB_CREATE_ADAPTER =3D 0x30002, MANA_IB_DESTROY_ADAPTER =3D 0x30003, }; @@ -120,6 +143,32 @@ struct mana_ib_destroy_adapter_resp { struct gdma_resp_hdr hdr; }; /* HW Data */ =20 +struct mana_ib_query_adapter_caps_req { + struct gdma_req_hdr hdr; +}; /*HW Data */ + +struct mana_ib_query_adapter_caps_resp { + struct gdma_resp_hdr hdr; + u32 max_sq_id; + u32 max_rq_id; + u32 max_cq_id; + u32 max_qp_count; + u32 max_cq_count; + u32 max_mr_count; + u32 max_pd_count; + u32 max_inbound_read_limit; + u32 max_outbound_read_limit; + u32 mw_count; + u32 max_srq_count; + u32 max_requester_sq_size; + u32 max_responder_sq_size; + u32 max_requester_rq_size; + u32 max_responder_rq_size; + u32 max_send_wqe_size; + u32 max_recv_wqe_size; + u32 max_inline_data_size; +}; /* HW Data */ + int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *= umem, mana_handle_t *gdma_region); =20 @@ -193,4 +242,6 @@ int mana_ib_create_adapter(struct mana_ib_dev *mdev); =20 int mana_ib_destroy_adapter(struct mana_ib_dev *mdev); =20 +int mana_ib_query_adapter_caps(struct mana_ib_dev *mdev); + #endif diff --git a/drivers/infiniband/hw/mana/qp.c b/drivers/infiniband/hw/mana/q= p.c index 7ff9c8364551..7211e93d999c 100644 --- a/drivers/infiniband/hw/mana/qp.c +++ b/drivers/infiniband/hw/mana/qp.c @@ -130,7 +130,8 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, st= ruct ib_pd *pd, return ret; } =20 - if (attr->cap.max_recv_wr > MAX_SEND_BUFFERS_PER_QUEUE) { + if (attr->cap.max_recv_wr > + mdev->adapter_caps.max_requester_sq_size) { ibdev_dbg(&mdev->ib_dev, "Requested max_recv_wr %d exceeding limit\n", attr->cap.max_recv_wr); @@ -302,7 +303,8 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, if (port < 1 || port > mc->num_ports) return -EINVAL; =20 - if (attr->cap.max_send_wr > MAX_SEND_BUFFERS_PER_QUEUE) { + if (attr->cap.max_send_wr > + mdev->adapter_caps.max_requester_sq_size) { ibdev_dbg(&mdev->ib_dev, "Requested max_send_wr %d exceeding limit\n", attr->cap.max_send_wr); diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h index e32c75639557..c1850ec7faae 100644 --- a/include/net/mana/gdma.h +++ b/include/net/mana/gdma.h @@ -155,6 +155,7 @@ struct gdma_general_req { =20 #define GDMA_MESSAGE_V1 1 #define GDMA_MESSAGE_V2 2 +#define GDMA_MESSAGE_V3 3 =20 struct gdma_general_resp { struct gdma_resp_hdr hdr; --=20 2.34.1