From nobody Thu Dec 25 03:26:14 2025 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E15DA4CDEA; Mon, 22 Jan 2024 23:23:10 +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=1705965793; cv=none; b=tQ5iTjNRL81JiXfCselZ9sapsVJH/QyXJsH40d+FMbnNlxigWdHY6Q+Bf6Qa2VizxJMqgpCUNPuuhc/D4rCIv9/a7DFqSOO2gwEL0iPtwhi6SX7znudSep8rtOCpi2XTgS1bWPg2ADq8q5TyouYOTfZL837QZDdeaBHvVDr3LHs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705965793; c=relaxed/simple; bh=ev11CpI1CRst9txnHGdAHq6y8VnP30fFfDWIpfuk1/0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=AHMYaxmGmMsSUx5IDqmGzW1IXvC4IF7Cmh2EzxHOIsZNdn8dUhYRCAHkz2iutA/SWyzlmeKltQjnZKmRXHDSKqX/vTyqOPRy0dVSckiNhxCoqrHzSOLbz3IDVwuIPjMR06QgYkRlrGc2rWyjPXFwoAm3r7I7bCmzgScGkR9UR1Q= 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=Q2l190My; 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="Q2l190My" Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id A499820E2C2D; Mon, 22 Jan 2024 15:23:10 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com A499820E2C2D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1705965790; bh=p0CMPzPJ1hMtyW0IaXyzWg4wbmiRGjXFWNTxjqQ4Z5E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q2l190MyEogNFsKyE58HOWaTPjItR75mLH+fvxJkW86TagdMaAkfgLXbIhoZLS7C8 B1/GC5jixoi5MsbnZPSImCtCh2bci+TYREkEx0wW0pc0C6Xko8VIOXFVcBpQdEjT2k 39jB0L5dMn5+oRH4M+xO5uJS5MLrBA04A5lOwz7c= 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 v1 2/3] RDMA/mana_ib: introduce mana_ib_get_netdev helper function Date: Mon, 22 Jan 2024 15:23:00 -0800 Message-Id: <1705965781-3235-3-git-send-email-kotaranov@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1705965781-3235-1-git-send-email-kotaranov@linux.microsoft.com> References: <1705965781-3235-1-git-send-email-kotaranov@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Konstantin Taranov Use a helper function to access netdevs using a port number. This patch removes code repetitions as well as removes the need to explicitly use gdma_dev, which was error-prone. Signed-off-by: Konstantin Taranov --- drivers/infiniband/hw/mana/main.c | 10 ++---- drivers/infiniband/hw/mana/mana_ib.h | 11 ++++++ drivers/infiniband/hw/mana/qp.c | 52 ++++++++++------------------ 3 files changed, 32 insertions(+), 41 deletions(-) diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana= /main.c index e0f5138ca088..29dd2438d4fe 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -8,13 +8,10 @@ void mana_ib_uncfg_vport(struct mana_ib_dev *dev, struct mana_ib_pd *pd, u32 port) { - struct gdma_dev *gd =3D &dev->gdma_dev->gdma_context->mana; struct mana_port_context *mpc; struct net_device *ndev; - struct mana_context *mc; =20 - mc =3D gd->driver_data; - ndev =3D mc->ports[port]; + ndev =3D mana_ib_get_netdev(&dev->ib_dev, port); mpc =3D netdev_priv(ndev); =20 mutex_lock(&pd->vport_mutex); @@ -31,14 +28,11 @@ void mana_ib_uncfg_vport(struct mana_ib_dev *dev, struc= t mana_ib_pd *pd, int mana_ib_cfg_vport(struct mana_ib_dev *dev, u32 port, struct mana_ib_pd= *pd, u32 doorbell_id) { - struct gdma_dev *mdev =3D &dev->gdma_dev->gdma_context->mana; struct mana_port_context *mpc; - struct mana_context *mc; struct net_device *ndev; int err; =20 - mc =3D mdev->driver_data; - ndev =3D mc->ports[port]; + ndev =3D mana_ib_get_netdev(&dev->ib_dev, port); mpc =3D netdev_priv(ndev); =20 mutex_lock(&pd->vport_mutex); diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/m= ana/mana_ib.h index ebb6537620ee..d373639e25d4 100644 --- a/drivers/infiniband/hw/mana/mana_ib.h +++ b/drivers/infiniband/hw/mana/mana_ib.h @@ -147,6 +147,17 @@ static inline struct gdma_context *mdev_to_gc(struct m= ana_ib_dev *mdev) return mdev->gdma_dev->gdma_context; } =20 +static inline struct net_device *mana_ib_get_netdev(struct ib_device *ibde= v, u32 port) +{ + struct mana_ib_dev *mdev =3D container_of(ibdev, struct mana_ib_dev, ib_d= ev); + struct gdma_context *gc =3D mdev_to_gc(mdev); + struct mana_context *mc =3D gc->mana.driver_data; + + if (port < 1 || port > mc->num_ports) + return NULL; + return mc->ports[port - 1]; +} + int mana_ib_gd_create_dma_region(struct mana_ib_dev *dev, struct ib_umem *= umem, mana_handle_t *gdma_region); =20 diff --git a/drivers/infiniband/hw/mana/qp.c b/drivers/infiniband/hw/mana/q= p.c index 0c8d6ecfbb2a..f5427599e033 100644 --- a/drivers/infiniband/hw/mana/qp.c +++ b/drivers/infiniband/hw/mana/qp.c @@ -106,11 +106,9 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, s= truct ib_pd *pd, struct mana_port_context *mpc; struct gdma_queue *gdma_cq; unsigned int ind_tbl_size; - struct mana_context *mc; struct net_device *ndev; struct mana_ib_cq *cq; struct mana_ib_wq *wq; - struct gdma_dev *gd; struct mana_eq *eq; struct ib_cq *ibcq; struct ib_wq *ibwq; @@ -118,9 +116,6 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, st= ruct ib_pd *pd, u32 port; int ret; =20 - gd =3D &gc->mana; - mc =3D gd->driver_data; - if (!udata || udata->inlen < sizeof(ucmd)) return -EINVAL; =20 @@ -163,12 +158,12 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, = struct ib_pd *pd, =20 /* IB ports start with 1, MANA start with 0 */ port =3D ucmd.port; - if (port < 1 || port > mc->num_ports) { + ndev =3D mana_ib_get_netdev(pd->device, port); + if (!ndev) { ibdev_dbg(&mdev->ib_dev, "Invalid port %u in creating qp\n", port); return -EINVAL; } - ndev =3D mc->ports[port - 1]; mpc =3D netdev_priv(ndev); =20 ibdev_dbg(&mdev->ib_dev, "rx_hash_function %d port %d\n", @@ -206,7 +201,7 @@ static int mana_ib_create_qp_rss(struct ib_qp *ibqp, st= ruct ib_pd *pd, cq_spec.gdma_region =3D cq->gdma_region; cq_spec.queue_size =3D cq->cqe * COMP_ENTRY_SIZE; cq_spec.modr_ctx_id =3D 0; - eq =3D &mc->eqs[cq->comp_vector % gc->max_num_queues]; + eq =3D &mpc->ac->eqs[cq->comp_vector % gc->max_num_queues]; cq_spec.attached_eq =3D eq->eq->id; =20 ret =3D mana_create_wq_obj(mpc, mpc->port_handle, GDMA_RQ, @@ -303,7 +298,6 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, struct mana_ib_ucontext *mana_ucontext =3D rdma_udata_to_drv_context(udata, struct mana_ib_ucontext, ibucontext); - struct gdma_dev *gd =3D &mdev->gdma_dev->gdma_context->mana; struct gdma_context *gc =3D mdev_to_gc(mdev); struct mana_ib_create_qp_resp resp =3D {}; struct mana_ib_create_qp ucmd =3D {}; @@ -311,7 +305,6 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, struct mana_obj_spec wq_spec =3D {}; struct mana_obj_spec cq_spec =3D {}; struct mana_port_context *mpc; - struct mana_context *mc; struct net_device *ndev; struct ib_umem *umem; struct mana_eq *eq; @@ -319,8 +312,6 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, u32 port; int err; =20 - mc =3D gd->driver_data; - if (!mana_ucontext || udata->inlen < sizeof(ucmd)) return -EINVAL; =20 @@ -331,11 +322,6 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, s= truct ib_pd *ibpd, return err; } =20 - /* IB ports start with 1, MANA Ethernet ports start with 0 */ - port =3D ucmd.port; - if (port < 1 || port > mc->num_ports) - return -EINVAL; - if (attr->cap.max_send_wr > mdev->adapter_caps.max_qp_wr) { ibdev_dbg(&mdev->ib_dev, "Requested max_send_wr %d exceeding limit\n", @@ -350,11 +336,17 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, = struct ib_pd *ibpd, return -EINVAL; } =20 - ndev =3D mc->ports[port - 1]; + port =3D ucmd.port; + ndev =3D mana_ib_get_netdev(ibpd->device, port); + if (!ndev) { + ibdev_dbg(&mdev->ib_dev, "Invalid port %u in creating qp\n", + port); + return -EINVAL; + } mpc =3D netdev_priv(ndev); ibdev_dbg(&mdev->ib_dev, "port %u ndev %p mpc %p\n", port, ndev, mpc); =20 - err =3D mana_ib_cfg_vport(mdev, port - 1, pd, mana_ucontext->doorbell); + err =3D mana_ib_cfg_vport(mdev, port, pd, mana_ucontext->doorbell); if (err) return -ENODEV; =20 @@ -394,8 +386,8 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, cq_spec.gdma_region =3D send_cq->gdma_region; cq_spec.queue_size =3D send_cq->cqe * COMP_ENTRY_SIZE; cq_spec.modr_ctx_id =3D 0; - eq_vec =3D send_cq->comp_vector % gd->gdma_context->max_num_queues; - eq =3D &mc->eqs[eq_vec]; + eq_vec =3D send_cq->comp_vector % gc->max_num_queues; + eq =3D &mpc->ac->eqs[eq_vec]; cq_spec.attached_eq =3D eq->eq->id; =20 err =3D mana_create_wq_obj(mpc, mpc->port_handle, GDMA_SQ, &wq_spec, @@ -415,7 +407,7 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, send_cq->id =3D cq_spec.queue_index; =20 /* Create CQ table entry */ - WARN_ON(gd->gdma_context->cq_table[send_cq->id]); + WARN_ON(gc->cq_table[send_cq->id]); gdma_cq =3D kzalloc(sizeof(*gdma_cq), GFP_KERNEL); if (!gdma_cq) { err =3D -ENOMEM; @@ -426,7 +418,7 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, gdma_cq->type =3D GDMA_CQ; gdma_cq->cq.callback =3D mana_ib_cq_handler; gdma_cq->id =3D send_cq->id; - gd->gdma_context->cq_table[send_cq->id] =3D gdma_cq; + gc->cq_table[send_cq->id] =3D gdma_cq; =20 ibdev_dbg(&mdev->ib_dev, "ret %d qp->tx_object 0x%llx sq id %llu cq id %llu\n", err, @@ -460,7 +452,7 @@ static int mana_ib_create_qp_raw(struct ib_qp *ibqp, st= ruct ib_pd *ibpd, ib_umem_release(umem); =20 err_free_vport: - mana_ib_uncfg_vport(mdev, pd, port - 1); + mana_ib_uncfg_vport(mdev, pd, port); =20 return err; } @@ -498,16 +490,13 @@ static int mana_ib_destroy_qp_rss(struct mana_ib_qp *= qp, { struct mana_ib_dev *mdev =3D container_of(qp->ibqp.device, struct mana_ib_dev, ib_dev); - struct gdma_dev *gd =3D &mdev->gdma_dev->gdma_context->mana; struct mana_port_context *mpc; - struct mana_context *mc; struct net_device *ndev; struct mana_ib_wq *wq; struct ib_wq *ibwq; int i; =20 - mc =3D gd->driver_data; - ndev =3D mc->ports[qp->port - 1]; + ndev =3D mana_ib_get_netdev(qp->ibqp.device, qp->port); mpc =3D netdev_priv(ndev); =20 for (i =3D 0; i < (1 << ind_tbl->log_ind_tbl_size); i++) { @@ -525,15 +514,12 @@ static int mana_ib_destroy_qp_raw(struct mana_ib_qp *= qp, struct ib_udata *udata) { struct mana_ib_dev *mdev =3D container_of(qp->ibqp.device, struct mana_ib_dev, ib_dev); - struct gdma_dev *gd =3D &mdev->gdma_dev->gdma_context->mana; struct ib_pd *ibpd =3D qp->ibqp.pd; struct mana_port_context *mpc; - struct mana_context *mc; struct net_device *ndev; struct mana_ib_pd *pd; =20 - mc =3D gd->driver_data; - ndev =3D mc->ports[qp->port - 1]; + ndev =3D mana_ib_get_netdev(qp->ibqp.device, qp->port); mpc =3D netdev_priv(ndev); pd =3D container_of(ibpd, struct mana_ib_pd, ibpd); =20 @@ -544,7 +530,7 @@ static int mana_ib_destroy_qp_raw(struct mana_ib_qp *qp= , struct ib_udata *udata) ib_umem_release(qp->sq_umem); } =20 - mana_ib_uncfg_vport(mdev, pd, qp->port - 1); + mana_ib_uncfg_vport(mdev, pd, qp->port); =20 return 0; } --=20 2.43.0