On Mon, Feb 3, 2020 at 9:38 PM Jason Gunthorpe <jgg@xxxxxxxx> wrote: > > On Mon, Feb 03, 2020 at 10:56:55AM -0500, Devesh Sharma wrote: > > It becomes difficult to make out from the output of ibv_devinfo > > if a particular gid index is RoCE v2 or not. > > > > Adding a string to the output of ibv_devinfo -v to display the > > gid type at the end of gid. > > > > The output would look something like below: > > $ ibv_devinfo -v -d bnxt_re2 > > hca_id: bnxt_re2 > > transport: InfiniBand (0) > > fw_ver: 216.0.220.0 > > node_guid: b226:28ff:fed3:b0f0 > > sys_image_guid: b226:28ff:fed3:b0f0 > > . > > . > > . > > . > > phys_state: LINK_UP (5) > > GID[ 0]: fe80:0000:0000:0000:b226:28ff:fed3:b0f0, IB/RoCE v1 > > GID[ 1]: fe80:0000:0000:0000:b226:28ff:fed3:b0f0, RoCE v2 > > GID[ 2]: 0000:0000:0000:0000:0000:ffff:c0aa:0165, IB/RoCE v1 > > GID[ 3]: 0000:0000:0000:0000:0000:ffff:c0aa:0165, RoCE v2 > > I think you should display the RoCEv2 GID in IPv6 notation, since it > isn't really a GID anyhmore. The IPv6 notation should automatically > show the IPv4 dotted quad There are many format specifiers, which one are you indicating? are those supported in printf()? > > Jason
