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| author | Michael Guralnik <michaelgur@mellanox.com> | 2018-12-09 11:58:05 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-12-20 15:18:24 -0700 |
| commit | 4fa2813d26c82680216e535c18a690ca0c4e860a (patch) | |
| tree | 0754334e1e6b1dd923625c25cca6a1f34f3c6301 | |
| parent | 2e8039c656224b4a21e1947f45946d32a59bae53 (diff) | |
| download | talos-obmc-linux-4fa2813d26c82680216e535c18a690ca0c4e860a.tar.gz talos-obmc-linux-4fa2813d26c82680216e535c18a690ca0c4e860a.zip | |
RDMA/nldev: Expose port_cap_flags2
port_cap_flags2 represents IBTA PortInfo:CapabilityMask2.
The field safely extends the RDMA_NLDEV_ATTR_CAP_FLAGS operand as it was
exported as 64 bit to allow this kind of extension.
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/core/nldev.c | 9 | ||||
| -rw-r--r-- | include/uapi/rdma/rdma_netlink.h | 3 |
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index 093bbfcdc53b..e600fc23ae62 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -227,6 +227,7 @@ static int fill_port_info(struct sk_buff *msg, struct net_device *netdev = NULL; struct ib_port_attr attr; int ret; + u64 cap_flags = 0; if (fill_nldev_handle(msg, device)) return -EMSGSIZE; @@ -239,10 +240,12 @@ static int fill_port_info(struct sk_buff *msg, return ret; if (rdma_protocol_ib(device, port)) { - BUILD_BUG_ON(sizeof(attr.port_cap_flags) > sizeof(u64)); + BUILD_BUG_ON((sizeof(attr.port_cap_flags) + + sizeof(attr.port_cap_flags2)) > sizeof(u64)); + cap_flags = attr.port_cap_flags | + ((u64)attr.port_cap_flags2 << 32); if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_CAP_FLAGS, - (u64)attr.port_cap_flags, - RDMA_NLDEV_ATTR_PAD)) + cap_flags, RDMA_NLDEV_ATTR_PAD)) return -EMSGSIZE; if (nla_put_u64_64bit(msg, RDMA_NLDEV_ATTR_SUBNET_PREFIX, attr.subnet_prefix, RDMA_NLDEV_ATTR_PAD)) diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h index f9c41bf59efc..2e18b77a817f 100644 --- a/include/uapi/rdma/rdma_netlink.h +++ b/include/uapi/rdma/rdma_netlink.h @@ -283,6 +283,9 @@ enum rdma_nldev_attr { /* * Device and port capabilities + * + * When used for port info, first 32-bits are CapabilityMask followed by + * 16-bit CapabilityMask2. */ RDMA_NLDEV_ATTR_CAP_FLAGS, /* u64 */ |
