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Date: Tue, 07 Apr 2015 14:44:15 +0200
From: Michael Wang <yun.wang@...fitbricks.com>
To: Roland Dreier <roland@...nel.org>,
Sean Hefty <sean.hefty@...el.com>, linux-rdma@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
netdev@...r.kernel.org
CC: Hal Rosenstock <hal.rosenstock@...il.com>,
Tom Tucker <tom@...ngridcomputing.com>,
Steve Wise <swise@...ngridcomputing.com>,
Hoang-Nam Nguyen <hnguyen@...ibm.com>,
Christoph Raisch <raisch@...ibm.com>,
Mike Marciniszyn <infinipath@...el.com>,
Eli Cohen <eli@...lanox.com>,
Faisal Latif <faisal.latif@...el.com>,
Upinder Malhi <umalhi@...co.com>,
Trond Myklebust <trond.myklebust@...marydata.com>,
"J. Bruce Fields" <bfields@...ldses.org>,
"David S. Miller" <davem@...emloft.net>,
Ira Weiny <ira.weiny@...el.com>,
PJ Waskiewicz <pj.waskiewicz@...idfire.com>,
Tatyana Nikolova <Tatyana.E.Nikolova@...el.com>,
Or Gerlitz <ogerlitz@...lanox.com>,
Jack Morgenstein <jackm@....mellanox.co.il>,
Haggai Eran <haggaie@...lanox.com>,
Ilya Nelkenbaum <ilyan@...lanox.com>,
Yann Droneaud <ydroneaud@...eya.com>,
Bart Van Assche <bvanassche@....org>,
Shachar Raindel <raindel@...lanox.com>,
Sagi Grimberg <sagig@...lanox.com>,
Devesh Sharma <devesh.sharma@...lex.com>,
Matan Barak <matanb@...lanox.com>,
Moni Shoua <monis@...lanox.com>, Jiri Kosina <jkosina@...e.cz>,
Selvin Xavier <selvin.xavier@...lex.com>,
Mitesh Ahuja <mitesh.ahuja@...lex.com>,
Li RongQing <roy.qing.li@...il.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Alex Estrin <alex.estrin@...el.com>,
Doug Ledford <dledford@...hat.com>,
Eric Dumazet <edumazet@...gle.com>,
Erez Shitrit <erezsh@...lanox.com>,
Tom Gundersen <teg@...m.no>,
Chuck Lever <chuck.lever@...cle.com>
Subject: Re: [PATCH 01/17] IB/Verbs: Implement new callback query_transport()
for each HW
V2 sent out, please ignore this one, my apologies.
Regards,
Michael Wang
On 04/07/2015 02:28 PM, Michael Wang wrote:
>
> Add new callback query_transport() and implement for each HW.
>
> Mapping List:
> node-type link-layer old-transport new-transport
> nes RNIC ETH IWARP IWARP
> amso1100 RNIC ETH IWARP IWARP
> cxgb3 RNIC ETH IWARP IWARP
> cxgb4 RNIC ETH IWARP IWARP
> usnic USNIC_UDP ETH USNIC_UDP USNIC_UDP
> ocrdma IB_CA ETH IB IBOE
> mlx4 IB_CA IB/ETH IB IB/IBOE
> mlx5 IB_CA IB IB IB
> ehca IB_CA IB IB IB
> ipath IB_CA IB IB IB
> mthca IB_CA IB IB IB
> qib IB_CA IB IB IB
>
> Cc: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
> Cc: Doug Ledford <dledford@...hat.com>
> Cc: Ira Weiny <ira.weiny@...el.com>
> Cc: Sean Hefty <sean.hefty@...el.com>
> Signed-off-by: Michael Wang <yun.wang@...fitbricks.com>
> ---
> drivers/infiniband/core/device.c | 1 +
> drivers/infiniband/core/verbs.c | 4 +++-
> drivers/infiniband/hw/amso1100/c2_provider.c | 7 +++++++
> drivers/infiniband/hw/cxgb3/iwch_provider.c | 7 +++++++
> drivers/infiniband/hw/cxgb4/provider.c | 7 +++++++
> drivers/infiniband/hw/ehca/ehca_hca.c | 6 ++++++
> drivers/infiniband/hw/ehca/ehca_iverbs.h | 3 +++
> drivers/infiniband/hw/ehca/ehca_main.c | 1 +
> drivers/infiniband/hw/ipath/ipath_verbs.c | 7 +++++++
> drivers/infiniband/hw/mlx4/main.c | 10 ++++++++++
> drivers/infiniband/hw/mlx5/main.c | 7 +++++++
> drivers/infiniband/hw/mthca/mthca_provider.c | 7 +++++++
> drivers/infiniband/hw/nes/nes_verbs.c | 6 ++++++
> drivers/infiniband/hw/ocrdma/ocrdma_main.c | 1 +
> drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 6 ++++++
> drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 3 +++
> drivers/infiniband/hw/qib/qib_verbs.c | 7 +++++++
> drivers/infiniband/hw/usnic/usnic_ib_main.c | 1 +
> drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 6 ++++++
> drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 2 ++
> include/rdma/ib_verbs.h | 7 ++++++-
> 21 files changed, 104 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
> index 18c1ece..a9587c4 100644
> --- a/drivers/infiniband/core/device.c
> +++ b/drivers/infiniband/core/device.c
> @@ -76,6 +76,7 @@ static int ib_device_check_mandatory(struct ib_device *device)
> } mandatory_table[] = {
> IB_MANDATORY_FUNC(query_device),
> IB_MANDATORY_FUNC(query_port),
> + IB_MANDATORY_FUNC(query_transport),
> IB_MANDATORY_FUNC(query_pkey),
> IB_MANDATORY_FUNC(query_gid),
> IB_MANDATORY_FUNC(alloc_pd),
> diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
> index f93eb8d..83370de 100644
> --- a/drivers/infiniband/core/verbs.c
> +++ b/drivers/infiniband/core/verbs.c
> @@ -133,14 +133,16 @@ enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_
> if (device->get_link_layer)
> return device->get_link_layer(device, port_num);
>
> - switch (rdma_node_get_transport(device->node_type)) {
> + switch (device->query_transport(device, port_num)) {
> case RDMA_TRANSPORT_IB:
> + case RDMA_TRANSPORT_IBOE:
> return IB_LINK_LAYER_INFINIBAND;
> case RDMA_TRANSPORT_IWARP:
> case RDMA_TRANSPORT_USNIC:
> case RDMA_TRANSPORT_USNIC_UDP:
> return IB_LINK_LAYER_ETHERNET;
> default:
> + BUG();
> return IB_LINK_LAYER_UNSPECIFIED;
> }
> }
> diff --git a/drivers/infiniband/hw/amso1100/c2_provider.c b/drivers/infiniband/hw/amso1100/c2_provider.c
> index bdf3507..d46bbb0 100644
> --- a/drivers/infiniband/hw/amso1100/c2_provider.c
> +++ b/drivers/infiniband/hw/amso1100/c2_provider.c
> @@ -99,6 +99,12 @@ static int c2_query_port(struct ib_device *ibdev,
> return 0;
> }
>
> +static enum rdma_transport_type
> +c2_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IWARP;
> +}
> +
> static int c2_query_pkey(struct ib_device *ibdev,
> u8 port, u16 index, u16 * pkey)
> {
> @@ -801,6 +807,7 @@ int c2_register_device(struct c2_dev *dev)
> dev->ibdev.dma_device = &dev->pcidev->dev;
> dev->ibdev.query_device = c2_query_device;
> dev->ibdev.query_port = c2_query_port;
> + dev->ibdev.query_transport = c2_query_transport;
> dev->ibdev.query_pkey = c2_query_pkey;
> dev->ibdev.query_gid = c2_query_gid;
> dev->ibdev.alloc_ucontext = c2_alloc_ucontext;
> diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
> index 811b24a..09682e9e 100644
> --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
> +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
> @@ -1232,6 +1232,12 @@ static int iwch_query_port(struct ib_device *ibdev,
> return 0;
> }
>
> +static enum rdma_transport_type
> +iwch_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IWARP;
> +}
> +
> static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
> char *buf)
> {
> @@ -1385,6 +1391,7 @@ int iwch_register_device(struct iwch_dev *dev)
> dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
> dev->ibdev.query_device = iwch_query_device;
> dev->ibdev.query_port = iwch_query_port;
> + dev->ibdev.query_transport = iwch_query_transport;
> dev->ibdev.query_pkey = iwch_query_pkey;
> dev->ibdev.query_gid = iwch_query_gid;
> dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
> diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c
> index 66bd6a2..a445e0d 100644
> --- a/drivers/infiniband/hw/cxgb4/provider.c
> +++ b/drivers/infiniband/hw/cxgb4/provider.c
> @@ -390,6 +390,12 @@ static int c4iw_query_port(struct ib_device *ibdev, u8 port,
> return 0;
> }
>
> +static enum rdma_transport_type
> +c4iw_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IWARP;
> +}
> +
> static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
> char *buf)
> {
> @@ -506,6 +512,7 @@ int c4iw_register_device(struct c4iw_dev *dev)
> dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
> dev->ibdev.query_device = c4iw_query_device;
> dev->ibdev.query_port = c4iw_query_port;
> + dev->ibdev.query_transport = c4iw_query_transport;
> dev->ibdev.query_pkey = c4iw_query_pkey;
> dev->ibdev.query_gid = c4iw_query_gid;
> dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
> diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
> index 9ed4d25..d5a34a6 100644
> --- a/drivers/infiniband/hw/ehca/ehca_hca.c
> +++ b/drivers/infiniband/hw/ehca/ehca_hca.c
> @@ -242,6 +242,12 @@ query_port1:
> return ret;
> }
>
> +enum rdma_transport_type
> +ehca_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IB;
> +}
> +
> int ehca_query_sma_attr(struct ehca_shca *shca,
> u8 port, struct ehca_sma_attr *attr)
> {
> diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h
> index 22f79af..cec945f 100644
> --- a/drivers/infiniband/hw/ehca/ehca_iverbs.h
> +++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h
> @@ -49,6 +49,9 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props);
> int ehca_query_port(struct ib_device *ibdev, u8 port,
> struct ib_port_attr *props);
>
> +enum rdma_transport_type
> +ehca_query_transport(struct ib_device *device, u8 port_num);
> +
> int ehca_query_sma_attr(struct ehca_shca *shca, u8 port,
> struct ehca_sma_attr *attr);
>
> diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
> index cd8d290..60e0a09 100644
> --- a/drivers/infiniband/hw/ehca/ehca_main.c
> +++ b/drivers/infiniband/hw/ehca/ehca_main.c
> @@ -467,6 +467,7 @@ static int ehca_init_device(struct ehca_shca *shca)
> shca->ib_device.dma_device = &shca->ofdev->dev;
> shca->ib_device.query_device = ehca_query_device;
> shca->ib_device.query_port = ehca_query_port;
> + shca->ib_device.query_transport = ehca_query_transport;
> shca->ib_device.query_gid = ehca_query_gid;
> shca->ib_device.query_pkey = ehca_query_pkey;
> /* shca->in_device.modify_device = ehca_modify_device */
> diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
> index 44ea939..58d36e3 100644
> --- a/drivers/infiniband/hw/ipath/ipath_verbs.c
> +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
> @@ -1638,6 +1638,12 @@ static int ipath_query_port(struct ib_device *ibdev,
> return 0;
> }
>
> +static enum rdma_transport_type
> +ipath_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IB;
> +}
> +
> static int ipath_modify_device(struct ib_device *device,
> int device_modify_mask,
> struct ib_device_modify *device_modify)
> @@ -2140,6 +2146,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd)
> dev->query_device = ipath_query_device;
> dev->modify_device = ipath_modify_device;
> dev->query_port = ipath_query_port;
> + dev->query_transport = ipath_query_transport;
> dev->modify_port = ipath_modify_port;
> dev->query_pkey = ipath_query_pkey;
> dev->query_gid = ipath_query_gid;
> diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
> index 0b280b1..28100bd 100644
> --- a/drivers/infiniband/hw/mlx4/main.c
> +++ b/drivers/infiniband/hw/mlx4/main.c
> @@ -413,6 +413,15 @@ static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
> return __mlx4_ib_query_port(ibdev, port, props, 0);
> }
>
> +static enum rdma_transport_type
> +mlx4_ib_query_transport(struct ib_device *device, u8 port_num)
> +{
> + struct mlx4_dev *dev = to_mdev(device)->dev;
> +
> + return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
> + RDMA_TRANSPORT_IB : RDMA_TRANSPORT_IBOE;
> +}
> +
> int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
> union ib_gid *gid, int netw_view)
> {
> @@ -2121,6 +2130,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
>
> ibdev->ib_dev.query_device = mlx4_ib_query_device;
> ibdev->ib_dev.query_port = mlx4_ib_query_port;
> + ibdev->ib_dev.query_transport = mlx4_ib_query_transport;
> ibdev->ib_dev.get_link_layer = mlx4_ib_port_link_layer;
> ibdev->ib_dev.query_gid = mlx4_ib_query_gid;
> ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey;
> diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
> index cc4ac1e..209c796 100644
> --- a/drivers/infiniband/hw/mlx5/main.c
> +++ b/drivers/infiniband/hw/mlx5/main.c
> @@ -351,6 +351,12 @@ out:
> return err;
> }
>
> +static enum rdma_transport_type
> +mlx5_ib_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IB;
> +}
> +
> static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
> union ib_gid *gid)
> {
> @@ -1336,6 +1342,7 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
>
> dev->ib_dev.query_device = mlx5_ib_query_device;
> dev->ib_dev.query_port = mlx5_ib_query_port;
> + dev->ib_dev.query_transport = mlx5_ib_query_transport;
> dev->ib_dev.query_gid = mlx5_ib_query_gid;
> dev->ib_dev.query_pkey = mlx5_ib_query_pkey;
> dev->ib_dev.modify_device = mlx5_ib_modify_device;
> diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
> index 415f8e1..67ac6a4 100644
> --- a/drivers/infiniband/hw/mthca/mthca_provider.c
> +++ b/drivers/infiniband/hw/mthca/mthca_provider.c
> @@ -179,6 +179,12 @@ static int mthca_query_port(struct ib_device *ibdev,
> return err;
> }
>
> +static enum rdma_transport_type
> +mthca_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IB;
> +}
> +
> static int mthca_modify_device(struct ib_device *ibdev,
> int mask,
> struct ib_device_modify *props)
> @@ -1281,6 +1287,7 @@ int mthca_register_device(struct mthca_dev *dev)
> dev->ib_dev.dma_device = &dev->pdev->dev;
> dev->ib_dev.query_device = mthca_query_device;
> dev->ib_dev.query_port = mthca_query_port;
> + dev->ib_dev.query_transport = mthca_query_transport;
> dev->ib_dev.modify_device = mthca_modify_device;
> dev->ib_dev.modify_port = mthca_modify_port;
> dev->ib_dev.query_pkey = mthca_query_pkey;
> diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
> index c0d0296..8df5b61 100644
> --- a/drivers/infiniband/hw/nes/nes_verbs.c
> +++ b/drivers/infiniband/hw/nes/nes_verbs.c
> @@ -606,6 +606,11 @@ static int nes_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr
> return 0;
> }
>
> +static enum rdma_transport_type
> +nes_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IWARP;
> +}
>
> /**
> * nes_query_pkey
> @@ -3879,6 +3884,7 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev)
> nesibdev->ibdev.dev.parent = &nesdev->pcidev->dev;
> nesibdev->ibdev.query_device = nes_query_device;
> nesibdev->ibdev.query_port = nes_query_port;
> + nesibdev->ibdev.query_transport = nes_query_transport;
> nesibdev->ibdev.query_pkey = nes_query_pkey;
> nesibdev->ibdev.query_gid = nes_query_gid;
> nesibdev->ibdev.alloc_ucontext = nes_alloc_ucontext;
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> index 7a2b59a..9f4d182 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> @@ -244,6 +244,7 @@ static int ocrdma_register_device(struct ocrdma_dev *dev)
> /* mandatory verbs. */
> dev->ibdev.query_device = ocrdma_query_device;
> dev->ibdev.query_port = ocrdma_query_port;
> + dev->ibdev.query_transport = ocrdma_query_transport;
> dev->ibdev.modify_port = ocrdma_modify_port;
> dev->ibdev.query_gid = ocrdma_query_gid;
> dev->ibdev.get_link_layer = ocrdma_link_layer;
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> index 8771755..73bace4 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> @@ -187,6 +187,12 @@ int ocrdma_query_port(struct ib_device *ibdev,
> return 0;
> }
>
> +enum rdma_transport_type
> +ocrdma_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IBOE;
> +}
> +
> int ocrdma_modify_port(struct ib_device *ibdev, u8 port, int mask,
> struct ib_port_modify *props)
> {
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> index b8f7853..4a81b63 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> @@ -41,6 +41,9 @@ int ocrdma_query_port(struct ib_device *, u8 port, struct ib_port_attr *props);
> int ocrdma_modify_port(struct ib_device *, u8 port, int mask,
> struct ib_port_modify *props);
>
> +enum rdma_transport_type
> +ocrdma_query_transport(struct ib_device *device, u8 port_num);
> +
> void ocrdma_get_guid(struct ocrdma_dev *, u8 *guid);
> int ocrdma_query_gid(struct ib_device *, u8 port,
> int index, union ib_gid *gid);
> diff --git a/drivers/infiniband/hw/qib/qib_verbs.c b/drivers/infiniband/hw/qib/qib_verbs.c
> index 4a35998..caad665 100644
> --- a/drivers/infiniband/hw/qib/qib_verbs.c
> +++ b/drivers/infiniband/hw/qib/qib_verbs.c
> @@ -1650,6 +1650,12 @@ static int qib_query_port(struct ib_device *ibdev, u8 port,
> return 0;
> }
>
> +static enum rdma_transport_type
> +qib_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_IB;
> +}
> +
> static int qib_modify_device(struct ib_device *device,
> int device_modify_mask,
> struct ib_device_modify *device_modify)
> @@ -2184,6 +2190,7 @@ int qib_register_ib_device(struct qib_devdata *dd)
> ibdev->query_device = qib_query_device;
> ibdev->modify_device = qib_modify_device;
> ibdev->query_port = qib_query_port;
> + ibdev->query_transport = qib_query_transport;
> ibdev->modify_port = qib_modify_port;
> ibdev->query_pkey = qib_query_pkey;
> ibdev->query_gid = qib_query_gid;
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> index 0d0f986..03ea9f3 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> @@ -360,6 +360,7 @@ static void *usnic_ib_device_add(struct pci_dev *dev)
>
> us_ibdev->ib_dev.query_device = usnic_ib_query_device;
> us_ibdev->ib_dev.query_port = usnic_ib_query_port;
> + us_ibdev->ib_dev.query_transport = usnic_ib_query_transport;
> us_ibdev->ib_dev.query_pkey = usnic_ib_query_pkey;
> us_ibdev->ib_dev.query_gid = usnic_ib_query_gid;
> us_ibdev->ib_dev.get_link_layer = usnic_ib_port_link_layer;
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> index 53bd6a2..ff9a5f7 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> @@ -348,6 +348,12 @@ int usnic_ib_query_port(struct ib_device *ibdev, u8 port,
> return 0;
> }
>
> +enum rdma_transport_type
> +usnic_ib_query_transport(struct ib_device *device, u8 port_num)
> +{
> + return RDMA_TRANSPORT_USNIC_UDP;
> +}
> +
> int usnic_ib_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
> int qp_attr_mask,
> struct ib_qp_init_attr *qp_init_attr)
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> index bb864f5..0b1633b 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> @@ -27,6 +27,8 @@ int usnic_ib_query_device(struct ib_device *ibdev,
> struct ib_device_attr *props);
> int usnic_ib_query_port(struct ib_device *ibdev, u8 port,
> struct ib_port_attr *props);
> +enum rdma_transport_type
> +usnic_ib_query_transport(struct ib_device *device, u8 port_num);
> int usnic_ib_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
> int qp_attr_mask,
> struct ib_qp_init_attr *qp_init_attr);
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index 65994a1..d54f91e 100644
> --- a/include/rdma/ib_verbs.h
> +++ b/include/rdma/ib_verbs.h
> @@ -75,10 +75,13 @@ enum rdma_node_type {
> };
>
> enum rdma_transport_type {
> + /* legacy for users */
> RDMA_TRANSPORT_IB,
> RDMA_TRANSPORT_IWARP,
> RDMA_TRANSPORT_USNIC,
> - RDMA_TRANSPORT_USNIC_UDP
> + RDMA_TRANSPORT_USNIC_UDP,
> + /* new transport */
> + RDMA_TRANSPORT_IBOE,
> };
>
> __attribute_const__ enum rdma_transport_type
> @@ -1501,6 +1504,8 @@ struct ib_device {
> int (*query_port)(struct ib_device *device,
> u8 port_num,
> struct ib_port_attr *port_attr);
> + enum rdma_transport_type (*query_transport)(struct ib_device *device,
> + u8 port_num);
> enum rdma_link_layer (*get_link_layer)(struct ib_device *device,
> u8 port_num);
> int (*query_gid)(struct ib_device *device,
>
--
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