# RE: \[RFC 03/11\] Add support for RoCE HW init

- From: Amrani, Ram \<hidden\>
- Date: 2016-09-19 08:45:50 
- List: netdev
- Page: https://ratatoskr.run/netdev/2016/09/11029423
- Thread: https://ratatoskr.run/linux-rdma/2016/09/11028713/t.md

```text
> > > +	dev->max_sge = min_t(u32, RDMA_MAX_SGE_PER_SQ_WQE,
> > > +			     RDMA_MAX_SGE_PER_RQ_WQE);
> >
> > Our kernel target mode consumers sort of rely on max_sge_rd, you need
> > to make sure to set it too.
> Good catch. Thanks!

Actually, as I come to code this, I just realized that max_sge_rd is already set in the  query verb itself:

+int qedr_query_device(struct ib_device *ibdev,
+                     struct ib_device_attr *attr, struct ib_udata *udata)
+{

<snip>

+       attr->max_sge = qattr->max_sge;
+       attr->max_sge_rd = qattr->max_sge;

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```