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Date: Tue, 21 Apr 2015 20:09:30 -0400
From: "ira.weiny" <ira.weiny@...el.com>
To: Michael Wang <yun.wang@...fitbricks.com>
Cc: Roland Dreier <roland@...nel.org>,
Sean Hefty <sean.hefty@...el.com>, linux-rdma@...r.kernel.org,
linux-kernel@...r.kernel.org, hal@....mellanox.co.il,
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>,
Jack Morgenstein <jackm@....mellanox.co.il>,
Or Gerlitz <ogerlitz@...lanox.com>,
Haggai Eran <haggaie@...lanox.com>,
Tom Talpey <tom@...pey.com>,
Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
Doug Ledford <dledford@...hat.com>
Subject: Re: [PATCH v5 18/27] IB/Verbs: Use management helper cap_ib_cm()
On Mon, Apr 20, 2015 at 10:40:04AM +0200, Michael Wang wrote:
>
> Introduce helper cap_ib_cm() to help us check if the port of an
> IB device support Infiniband Communication Manager.
>
> Cc: Hal Rosenstock <hal@....mellanox.co.il>
> Cc: Steve Wise <swise@...ngridcomputing.com>
> Cc: Tom Talpey <tom@...pey.com>
> 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>
Reviewed-by: Ira Weiny <ira.weiny@...el.com>
> ---
> drivers/infiniband/core/cm.c | 6 +++---
> drivers/infiniband/core/cma.c | 19 +++++++++----------
> drivers/infiniband/core/ucm.c | 2 +-
> include/rdma/ib_verbs.h | 15 +++++++++++++++
> 4 files changed, 28 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
> index 3c10b75..eae4c9f 100644
> --- a/drivers/infiniband/core/cm.c
> +++ b/drivers/infiniband/core/cm.c
> @@ -3781,7 +3781,7 @@ static void cm_add_one(struct ib_device *ib_device)
>
> set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask);
> for (i = 1; i <= ib_device->phys_port_cnt; i++) {
> - if (!rdma_ib_or_iboe(ib_device, i))
> + if (!cap_ib_cm(ib_device, i))
> continue;
>
> port = kzalloc(sizeof *port, GFP_KERNEL);
> @@ -3832,7 +3832,7 @@ error1:
> port_modify.set_port_cap_mask = 0;
> port_modify.clr_port_cap_mask = IB_PORT_CM_SUP;
> while (--i) {
> - if (!rdma_ib_or_iboe(ib_device, i))
> + if (!cap_ib_cm(ib_device, i))
> continue;
>
> port = cm_dev->port[i-1];
> @@ -3864,7 +3864,7 @@ static void cm_remove_one(struct ib_device *ib_device)
> write_unlock_irqrestore(&cm.device_lock, flags);
>
> for (i = 1; i <= ib_device->phys_port_cnt; i++) {
> - if (!rdma_ib_or_iboe(ib_device, i))
> + if (!cap_ib_cm(ib_device, i))
> continue;
>
> port = cm_dev->port[i-1];
> diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
> index ec64b97..ff59dbc 100644
> --- a/drivers/infiniband/core/cma.c
> +++ b/drivers/infiniband/core/cma.c
> @@ -766,7 +766,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
> int ret = 0;
>
> id_priv = container_of(id, struct rdma_id_private, id);
> - if (rdma_ib_or_iboe(id->device, id->port_num)) {
> + if (cap_ib_cm(id->device, id->port_num)) {
> if (!id_priv->cm_id.ib || (id_priv->id.qp_type == IB_QPT_UD))
> ret = cma_ib_init_qp_attr(id_priv, qp_attr, qp_attr_mask);
> else
> @@ -1054,7 +1054,7 @@ void rdma_destroy_id(struct rdma_cm_id *id)
> mutex_unlock(&id_priv->handler_mutex);
>
> if (id_priv->cma_dev) {
> - if (rdma_ib_or_iboe(id_priv->id.device, 1)) {
> + if (cap_ib_cm(id_priv->id.device, 1)) {
> if (id_priv->cm_id.ib)
> ib_destroy_cm_id(id_priv->cm_id.ib);
> } else if (rdma_tech_iwarp(id_priv->id.device, 1)) {
> @@ -1637,8 +1637,7 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv,
> struct rdma_cm_id *id;
> int ret;
>
> - if (cma_family(id_priv) == AF_IB &&
> - !rdma_ib_or_iboe(cma_dev->device, 1))
> + if (cma_family(id_priv) == AF_IB && !cap_ib_cm(cma_dev->device, 1))
> return;
>
> id = rdma_create_id(cma_listen_handler, id_priv, id_priv->id.ps,
> @@ -2029,7 +2028,7 @@ static int cma_bind_loopback(struct rdma_id_private *id_priv)
> mutex_lock(&lock);
> list_for_each_entry(cur_dev, &dev_list, list) {
> if (cma_family(id_priv) == AF_IB &&
> - !rdma_ib_or_iboe(cur_dev->device, 1))
> + !cap_ib_cm(cur_dev->device, 1))
> continue;
>
> if (!cma_dev)
> @@ -2538,7 +2537,7 @@ int rdma_listen(struct rdma_cm_id *id, int backlog)
>
> id_priv->backlog = backlog;
> if (id->device) {
> - if (rdma_ib_or_iboe(id->device, 1)) {
> + if (cap_ib_cm(id->device, 1)) {
> ret = cma_ib_listen(id_priv);
> if (ret)
> goto err;
> @@ -2882,7 +2881,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
> id_priv->srq = conn_param->srq;
> }
>
> - if (rdma_ib_or_iboe(id->device, id->port_num)) {
> + if (cap_ib_cm(id->device, id->port_num)) {
> if (id->qp_type == IB_QPT_UD)
> ret = cma_resolve_ib_udp(id_priv, conn_param);
> else
> @@ -2993,7 +2992,7 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
> id_priv->srq = conn_param->srq;
> }
>
> - if (rdma_ib_or_iboe(id->device, id->port_num)) {
> + if (cap_ib_cm(id->device, id->port_num)) {
> if (id->qp_type == IB_QPT_UD) {
> if (conn_param)
> ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
> @@ -3056,7 +3055,7 @@ int rdma_reject(struct rdma_cm_id *id, const void *private_data,
> if (!id_priv->cm_id.ib)
> return -EINVAL;
>
> - if (rdma_ib_or_iboe(id->device, id->port_num)) {
> + if (cap_ib_cm(id->device, id->port_num)) {
> if (id->qp_type == IB_QPT_UD)
> ret = cma_send_sidr_rep(id_priv, IB_SIDR_REJECT, 0,
> private_data, private_data_len);
> @@ -3083,7 +3082,7 @@ int rdma_disconnect(struct rdma_cm_id *id)
> if (!id_priv->cm_id.ib)
> return -EINVAL;
>
> - if (rdma_ib_or_iboe(id->device, id->port_num)) {
> + if (cap_ib_cm(id->device, id->port_num)) {
> ret = cma_modify_qp_err(id_priv);
> if (ret)
> goto out;
> diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
> index 70e0ccb..f7290c8 100644
> --- a/drivers/infiniband/core/ucm.c
> +++ b/drivers/infiniband/core/ucm.c
> @@ -1253,7 +1253,7 @@ static void ib_ucm_add_one(struct ib_device *device)
> dev_t base;
> struct ib_ucm_device *ucm_dev;
>
> - if (!device->alloc_ucontext || !rdma_ib_or_iboe(device, 1))
> + if (!device->alloc_ucontext || !cap_ib_cm(device, 1))
> return;
>
> ucm_dev = kzalloc(sizeof *ucm_dev, GFP_KERNEL);
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index 873b9a6..6805e3e 100644
> --- a/include/rdma/ib_verbs.h
> +++ b/include/rdma/ib_verbs.h
> @@ -1803,6 +1803,21 @@ static inline int cap_ib_smi(struct ib_device *device, u8 port_num)
> return rdma_tech_ib(device, port_num);
> }
>
> +/**
> + * cap_ib_cm - Check if the port of device has the capability Infiniband
> + * Communication Manager.
> + *
> + * @device: Device to be checked
> + * @port_num: Port number of the device
> + *
> + * Return 0 when port of the device don't support Infiniband
> + * Communication Manager.
> + */
> +static inline int cap_ib_cm(struct ib_device *device, u8 port_num)
> +{
> + return rdma_ib_or_iboe(device, port_num);
> +}
> +
> int ib_query_gid(struct ib_device *device,
> u8 port_num, int index, union ib_gid *gid);
>
> --
> 2.1.0
--
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