IB/rdmavt: Add device structure allocation
This patch adds rdmavt device structure allocation in rdamvt. The
ib_device alloc is now done in rdmavt instead of the driver. Drivers
need to tell rdmavt the number of ports when calling.
A side of effect of this patch is fixing a bug with port initialization
where the device structure port array was allocated over top of an
existing one.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
index cf7cac6..450caa7 100644
--- a/drivers/infiniband/sw/rdmavt/vt.c
+++ b/drivers/infiniband/sw/rdmavt/vt.c
@@ -67,6 +67,24 @@
}
module_exit(rvt_cleanup);
+struct rvt_dev_info *rvt_alloc_device(size_t size, int nports)
+{
+ struct rvt_dev_info *rdi = ERR_PTR(-ENOMEM);
+
+ rdi = (struct rvt_dev_info *)ib_alloc_device(size);
+ if (!rdi)
+ return rdi;
+
+ rdi->ports = kcalloc(nports,
+ sizeof(struct rvt_ibport **),
+ GFP_KERNEL);
+ if (!rdi->ports)
+ ib_dealloc_device(&rdi->ibdev);
+
+ return rdi;
+}
+EXPORT_SYMBOL(rvt_alloc_device);
+
static int rvt_query_device(struct ib_device *ibdev,
struct ib_device_attr *props,
struct ib_udata *uhw)
@@ -434,18 +452,6 @@
int rvt_init_port(struct rvt_dev_info *rdi, struct rvt_ibport *port,
int portnum, u16 *pkey_table)
{
- if (!rdi->dparms.nports) {
- rvt_pr_err(rdi, "Driver says it has no ports.\n");
- return -EINVAL;
- }
-
- rdi->ports = kcalloc(rdi->dparms.nports,
- sizeof(struct rvt_ibport **),
- GFP_KERNEL);
- if (!rdi->ports) {
- rvt_pr_err(rdi, "Could not allocate port mem.\n");
- return -ENOMEM;
- }
rdi->ports[portnum] = port;
rdi->ports[portnum]->pkey_table = pkey_table;
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index e382cca..7768e04 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -394,6 +394,7 @@
return qp;
}
+struct rvt_dev_info *rvt_alloc_device(size_t size, int nports);
int rvt_register_device(struct rvt_dev_info *rvd);
void rvt_unregister_device(struct rvt_dev_info *rvd);
int rvt_check_ah(struct ib_device *ibdev, struct ib_ah_attr *ah_attr);