[PATCH v7 17/23] IB/Verbs: Use management helper cap_ib_cm()

Michael Wang
2015-04-28T15:10:17Z

Introduce helper cap_ib_cm() to help us check if the port of an
IB device support Infiniband Communication Manager.

Cc: Hal Rosenstock <hal@dev.mellanox.co.il>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Doug Ledford <dledford@redhat.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Michael Wang <yun.wang@profitbricks.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 add5e484..3ffaad3 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 d43f492f..ecb0484 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -745,7 +745,7 @@ 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
@@ -1033,7 +1033,7 @@ 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_protocol_iwarp(id_priv->id.device, 1)) {
@@ -1616,8 +1616,7 @@ 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,
@@ -2008,7 +2007,7 @@ 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)
@@ -2517,7 +2516,7 @@ 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;
@@ -2861,7 +2860,7 @@ 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
@@ -2972,7 +2971,7 @@ 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,
@@ -3035,7 +3034,7 @@ 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);
@@ -3062,7 +3061,7 @@ 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 b364a82..87b07f2 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1804,6 +1804,21 @@ static inline int cap_ib_smi(struct ib_device *device, u8 port_num)
return rdma_protocol_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