On Wed, 2009-11-11 at 11:19 -0800, Roland Dreier wrote: > > This patch moves the definition of struct ib_port from > > sysfs.c to ib_verbs.h so that HCAs can create files in > > /sys/class/infiniband/<hca>/ports/<N>/ > > um, maybe, but we need to see how it gets used first. How do you get > the to struct ib_port in driver code? Maybe it would make more sense to > add a way for low-level drivers to pass in port attributes that get > added when the port structure gets created?
It is used by the new ib_qib driver to expose the SL to VL table since the user level MPI library (libpsm) constructs packets including the IB header. After the driver calls ib_register_device(), it calls device_create_file() to create the files in /sys/class/infiniband/qib0/. Then it uses struct ib_device->port_list to get the pointer to ib_port to add a directory similar to "gids" and "pkeys" for each SL. > By the way, any plans to resume working on the upstream driver for > qlogic HCAs? Do you still plan to deprecate ib_ipath and add a new > driver for new devices? Yes, this is what I'm working on. The patch is the only change outside of the hw/qib/ directory. Do you want to see a preview of the sysfs code? -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
