int efadv_query_device()

in efawin/verbs.c [137:170]

• 26 lines of code
• 6 McCabe index (conditional complexity)

int efadv_query_device(struct ibv_context *ibvctx,
		       struct efadv_device_attr *attr,
		       uint32_t inlen)
{
	struct efa_context *ctx = to_efa_context(ibvctx);
	uint64_t comp_mask_out = 0;

	if (!is_efa_dev(ibvctx->device))
		return EOPNOTSUPP;

	if (!vext_field_avail(struct efadv_device_attr, inline_buf_size, inlen))
		return EINVAL;

	memset(attr, 0, inlen);
	attr->max_sq_wr = ctx->max_sq_wr;
	attr->max_rq_wr = ctx->max_rq_wr;
	attr->max_sq_sge = ctx->max_sq_sge;
	attr->max_rq_sge = ctx->max_rq_sge;
	attr->inline_buf_size = ctx->inline_buf_size;

	if (vext_field_avail(struct efadv_device_attr, max_rdma_size, inlen)) {
		attr->max_rdma_size = ctx->max_rdma_size;

		if (EFA_DEV_CAP(ctx, RDMA_READ))
			attr->device_caps |= EFADV_DEVICE_ATTR_CAPS_RDMA_READ;

		if (EFA_DEV_CAP(ctx, RNR_RETRY))
			attr->device_caps |= EFADV_DEVICE_ATTR_CAPS_RNR_RETRY;
	}

	attr->comp_mask = comp_mask_out;

	return 0;
}