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Date: Mon, 13 Apr 2015 14:32:36 +0200
From: Michael Wang <yun.wang@...fitbricks.com>
To: Roland Dreier <roland@...nel.org>,
Sean Hefty <sean.hefty@...el.com>,
Hal Rosenstock <hal.rosenstock@...il.com>,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
CC: 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>,
Ira Weiny <ira.weiny@...el.com>, Tom Talpey <tom@...pey.com>,
Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
Doug Ledford <dledford@...hat.com>,
Michael Wang <yun.wang@...fitbricks.com>
Subject: [PATCH v3 20/28] IB/Verbs: Use management helper cap_ib_sa()
Introduce helper cap_ib_sa() to help us check if the port of an
IB device support Infiniband Subnet Administrator.
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>
---
drivers/infiniband/core/cma.c | 4 ++--
drivers/infiniband/core/sa_query.c | 10 +++++-----
drivers/infiniband/core/ucma.c | 2 +-
include/rdma/ib_verbs.h | 15 +++++++++++++++
4 files changed, 23 insertions(+), 8 deletions(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 4f4a420..013930c 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -955,7 +955,7 @@ static inline int cma_user_data_offset(struct rdma_id_private *id_priv)
static void cma_cancel_route(struct rdma_id_private *id_priv)
{
- if (rdma_tech_ib(id_priv->id.device, id_priv->id.port_num)) {
+ if (cap_ib_sa(id_priv->id.device, id_priv->id.port_num)) {
if (id_priv->query)
ib_sa_cancel_query(id_priv->query_id, id_priv->query);
}
@@ -1981,7 +1981,7 @@ int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms)
return -EINVAL;
atomic_inc(&id_priv->refcount);
- if (rdma_tech_ib(id->device, id->port_num))
+ if (cap_ib_sa(id->device, id->port_num))
ret = cma_resolve_ib_route(id_priv, timeout_ms);
else if (rdma_tech_iboe(id->device, id->port_num))
ret = cma_resolve_iboe_route(id_priv);
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 803ccf7..fc7e161 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -450,7 +450,7 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event
struct ib_sa_port *port =
&sa_dev->port[event->element.port_num - sa_dev->start_port];
- if (WARN_ON(!rdma_tech_ib(handler->device, port->port_num)))
+ if (WARN_ON(!cap_ib_sa(handler->device, port->port_num)))
return;
spin_lock_irqsave(&port->ah_lock, flags);
@@ -1173,7 +1173,7 @@ static void ib_sa_add_one(struct ib_device *device)
for (i = 0; i <= e - s; ++i) {
spin_lock_init(&sa_dev->port[i].ah_lock);
- if (!rdma_tech_ib(device, i + 1))
+ if (!cap_ib_sa(device, i + 1))
continue;
sa_dev->port[i].sm_ah = NULL;
@@ -1210,7 +1210,7 @@ static void ib_sa_add_one(struct ib_device *device)
goto err;
for (i = 0; i <= e - s; ++i) {
- if (rdma_tech_ib(device, i + 1))
+ if (cap_ib_sa(device, i + 1))
update_sm_ah(&sa_dev->port[i].update_task);
}
@@ -1218,7 +1218,7 @@ static void ib_sa_add_one(struct ib_device *device)
err:
while (--i >= 0) {
- if (rdma_tech_ib(device, i + 1))
+ if (cap_ib_sa(device, i + 1))
ib_unregister_mad_agent(sa_dev->port[i].agent);
}
@@ -1240,7 +1240,7 @@ static void ib_sa_remove_one(struct ib_device *device)
flush_workqueue(ib_wq);
for (i = 0; i <= sa_dev->end_port - sa_dev->start_port; ++i) {
- if (rdma_tech_ib(device, i + 1)) {
+ if (cap_ib_sa(device, i + 1)) {
ib_unregister_mad_agent(sa_dev->port[i].agent);
if (sa_dev->port[i].sm_ah)
kref_put(&sa_dev->port[i].sm_ah->ref, free_sm_ah);
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 7331c6c..bed7957 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -723,7 +723,7 @@ static ssize_t ucma_query_route(struct ucma_file *file,
resp.node_guid = (__force __u64) ctx->cm_id->device->node_guid;
resp.port_num = ctx->cm_id->port_num;
- if (rdma_tech_ib(ctx->cm_id->device, ctx->cm_id->port_num))
+ if (cap_ib_sa(ctx->cm_id->device, ctx->cm_id->port_num))
ucma_copy_ib_route(&resp, &ctx->cm_id->route);
else if (rdma_tech_iboe(ctx->cm_id->device, ctx->cm_id->port_num))
ucma_copy_iboe_route(&resp, &ctx->cm_id->route);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index e4999f6..3bfdf81 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1833,6 +1833,21 @@ static inline int cap_iw_cm(struct ib_device *device, u8 port_num)
return rdma_tech_iwarp(device, port_num);
}
+/**
+ * cap_ib_sa - Check if the port of device has the capability Infiniband
+ * Subnet Administrator.
+ *
+ * @device: Device to be checked
+ * @port_num: Port number of the device
+ *
+ * Return 0 when port of the device don't support Infiniband
+ * Subnet Administrator.
+ */
+static inline int cap_ib_sa(struct ib_device *device, u8 port_num)
+{
+ return rdma_tech_ib(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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