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SubjectRe: [PATCH] Documentation/ABI: update infiniband sysfs interfaces
On Thu, Feb 01, 2018 at 12:48:18PM -0500, Hal Rosenstock wrote:
> On 2/1/2018 8:32 AM, Aishwarya Pant wrote:
> > Add documentation for core and hardware specific infiniband interfaces.
> > The descriptions have been collected from git commit logs, reading
> > through code and data sheets. Some drivers have incomplete doc and are
> > annotated with the comment '[to be documented]'.
> >
> > Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
> > ---
> > Documentation/ABI/testing/sysfs-class-infiniband | 755 +++++++++++++++++++++++
> > 1 file changed, 755 insertions(+)
> >
> > diff --git a/Documentation/ABI/testing/sysfs-class-infiniband b/Documentation/ABI/testing/sysfs-class-infiniband
> > index a86abe66a316..2e150169633b 100644
> > --- a/Documentation/ABI/testing/sysfs-class-infiniband
> > +++ b/Documentation/ABI/testing/sysfs-class-infiniband
> > @@ -1,3 +1,194 @@
> > +sysfs interface common for all infiniband devices
> > +-------------------------------------------------
> > +
> > +What: /sys/class/infiniband/<device>/node_type
> > +What: /sys/class/infiniband/<device>/node_guid
> > +What: /sys/class/infiniband/<device>/sys_image_guid
> > +Date: Apr, 2005
> > +KernelVersion: v2.6.12
> > +Contact: linux-rdma@vger.kernel.org
> > +Description:
> > + node_type: (RO) Node type (CA, RNIC, usNIC, usNIC UDP,
> > + switch or router)
> > +
> > + node_guid: (RO) Node GUID
> > +
> > + sys_image_guid: (RO) System image GUID
> > +
> > +
> > +What: /sys/class/infiniband/<device>/node_desc
> > +Date: Feb, 2006
> > +KernelVersion: v2.6.17
> > +Contact: linux-rdma@vger.kernel.org
> > +Description:
> > + (RW) Update the node description with information such as the
> > + node's hostname, so that IB network management software can tie
> > + its view to the real world.
> > +
> > +
> > +What: /sys/class/infiniband/<device>/fw_ver
> > +Date: Jun, 2016
> > +KernelVersion: v4.10
> > +Contact: linux-rdma@vger.kernel.org
> > +Description:
> > + (RO) Display firmware version
> > +
> > +
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/lid
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/rate
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/lid_mask_count
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/sm_sl
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/sm_lid
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/state
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/phys_state
> > +What: /sys/class/infiniband/<device>/ports/<port-num>/cap_mask
> > +Date: Apr, 2005
> > +KernelVersion: v2.6.12
> > +Contact: linux-rdma@vger.kernel.org
> > +Description:
> > +
> > + lid: (RO) Port LID
> > +
> > + rate: (RO) Port data rate (active width * active
> > + speed)
> > +
> > + lid_mask_count: (RO) Port LID mask count
> > +
> > + sm_slL (RO) Subnet manager SL for port's subnet
>
> Typo sm_sl:
>
> > +
> > + sm_lid: (RO) Subnet manager LID for port's subnet
> > +
> > + state: (RO) Port state (DOWN, INIT, ARMED, ACTIVE or
> > + ACTIVE_DEFER> +
> > + phys_state: (RO) Port physical state (Sleep, Polling,
> > + LinkUp, etc)
> > +
> > + cap_mask: (RO) Port capability mask
>
> 2 bits here are settable: IsCommunicationManagementSupported and IsSM.

Hi

Sorry, I don't quite understand this. cap_mask is a read only value which
indicates the supported functions. So the two bits-
IsCommunicationManagementSupported and IsSM, should not be setttable?

Aishwarya

<snip>

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