Dotan Barak wrote:
In mlx4 (and in other HCAs too) this value comes from the FW using the command QUERY_DEV_CAP.
I see. Looking on the dynamic params which can be changed in the driver load (see below the mthca ones), this param can't be changed, so where the limit lies, is it in the connectx FW or HW?
Or.
linux-2.6.24-rc8 # modinfo ib_mthca | grep num parm: fmr_reserved_mtts:number of memory translation table segments reserved for FMR (int) parm: num_udav:maximum number of UD address vectors per HCA (int) parm: num_mtt:maximum number of memory translation table segments per HCA (int) parm: num_mpt:maximum number of memory protection table entries per HCA (int) parm: num_mcg:maximum number of multicast groups per HCA (int) parm: num_cq:maximum number of CQs per HCA (int) parm: rdb_per_qp:number of RDB buffers per QP (int) parm: num_qp:maximum number of QPs per HCA (int)
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