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IB: Add rdma_cap_ib_switch helper and use where appropriate

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Persuant to Liran's comments on node_type on linux-rdma
mailing list:

In an effort to reform the RDMA core and ULPs to minimize use of
node_type in struct ib_device, an additional bit is added to
struct ib_device for is_switch (IB switch). This is needed
to be initialized by any IB switch device driver. This is a
NEW requirement on such device drivers which are all
"out of tree".

In addition, an ib_switch helper was added to ib_verbs.h
based on the is_switch device bit rather than node_type
(although those should be consistent).

The RDMA core (MAD, SMI, agent, sa_query, multicast, sysfs)
as well as (IPoIB and SRP) ULPs are updated where
appropriate to use this new helper. In some cases,
the helper is now used under the covers of using
rdma_[start end]_port rather than the open coding
previously used.

Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Hal Rosenstock <hal@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Hal Rosenstock
2015-06-29 09:57:00 -04:00
committed by Doug Ledford
parent bc0195aad0
commit 4139032b48
11 changed files with 66 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/infiniband/ulp/ipoib/ipoib_main.c
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@@ -1684,7 +1684,7 @@ static void ipoib_add_one(struct ib_device *device)
struct list_head *dev_list;
struct net_device *dev;
struct ipoib_dev_priv *priv;
int s, e, p;
int p;
int count = 0;
dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL);
@@ -1693,15 +1693,7 @@ static void ipoib_add_one(struct ib_device *device)
INIT_LIST_HEAD(dev_list);
if (device->node_type == RDMA_NODE_IB_SWITCH) {
s = 0;
e = 0;
} else {
s = 1;
e = device->phys_port_cnt;
}
for (p = s; p <= e; ++p) {
for (p = rdma_start_port(device); p <= rdma_end_port(device); ++p) {
if (!rdma_protocol_ib(device, p))
continue;
dev = ipoib_add_port("ib%d", device, p);