diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2015-12-18 10:59:45 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-12-22 14:39:00 -0500 |
| commit | 86bee4c9c126b4f73e3f152cd43c806cac9135ad (patch) | |
| tree | c57b8c7a04f0a415549f5cd2d1c9195ae9a16e20 /drivers/infiniband/core/cm.c | |
| parent | 3e153a93a1c12e3354dd38cca414fb51a15136a2 (diff) | |
| download | lwn-86bee4c9c126b4f73e3f152cd43c806cac9135ad.tar.gz lwn-86bee4c9c126b4f73e3f152cd43c806cac9135ad.zip | |
IB/core: Avoid calling ib_query_device
Use the cached copy of the attributes present on the device, except for
the case of a query originating from user-space, where we have to invoke
the driver query_device entry, so they can fill in their udata.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/core/cm.c')
| -rw-r--r-- | drivers/infiniband/core/cm.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 0a26dd6d9b19..7fa2b940a5b9 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3731,16 +3731,6 @@ int ib_cm_init_qp_attr(struct ib_cm_id *cm_id, } EXPORT_SYMBOL(ib_cm_init_qp_attr); -static void cm_get_ack_delay(struct cm_device *cm_dev) -{ - struct ib_device_attr attr; - - if (ib_query_device(cm_dev->ib_device, &attr)) - cm_dev->ack_delay = 0; /* acks will rely on packet life time */ - else - cm_dev->ack_delay = attr.local_ca_ack_delay; -} - static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr, char *buf) { @@ -3852,7 +3842,7 @@ static void cm_add_one(struct ib_device *ib_device) return; cm_dev->ib_device = ib_device; - cm_get_ack_delay(cm_dev); + cm_dev->ack_delay = ib_device->attrs.local_ca_ack_delay; cm_dev->going_down = 0; cm_dev->device = device_create(&cm_class, &ib_device->dev, MKDEV(0, 0), NULL, |