static int fi_ibv_get_device_attrs(struct ibv_context *ctx, struct fi_info *info)
{
struct ibv_device_attr device_attr;
struct ibv_port_attr port_attr;
int ret = 0;
ret = ibv_query_device(ctx, &device_attr);
if (ret) {
VERBS_INFO_ERRNO(FI_LOG_FABRIC, "ibv_query_device", errno);
return -errno;
}
info->domain_attr->cq_cnt = device_attr.max_cq;
info->domain_attr->ep_cnt = device_attr.max_qp;
info->domain_attr->tx_ctx_cnt = MIN(info->domain_attr->tx_ctx_cnt, device_attr.max_qp);
info->domain_attr->rx_ctx_cnt = MIN(info->domain_attr->rx_ctx_cnt, device_attr.max_qp);
info->domain_attr->max_ep_tx_ctx = device_attr.max_qp;
info->domain_attr->max_ep_rx_ctx = device_attr.max_qp;
ret = fi_ibv_get_qp_cap(ctx, &device_attr, info);
if (ret)
return ret;
ret = ibv_query_port(ctx, 1, &port_attr);
if (ret) {
VERBS_INFO_ERRNO(FI_LOG_FABRIC, "ibv_query_port", errno);
return -errno;
}
info->ep_attr->max_msg_size = port_attr.max_msg_sz;
info->ep_attr->max_order_raw_size = port_attr.max_msg_sz;
info->ep_attr->max_order_waw_size = port_attr.max_msg_sz;
return 0;
}
static int fi_ibv_get_device_attrs(struct ibv_context *ctx, struct fi_info *info)
{
struct ibv_device_attr device_attr;
struct ibv_port_attr port_attr;
int ret = 0;
ret = ibv_query_device(ctx, &device_attr);
if (ret) {
VERBS_INFO_ERRNO(FI_LOG_FABRIC, "ibv_query_device", errno);
return -errno;
}
info->domain_attr->cq_cnt = device_attr.max_cq;
info->domain_attr->ep_cnt = device_attr.max_qp;
info->domain_attr->tx_ctx_cnt = MIN(info->domain_attr->tx_ctx_cnt, device_attr.max_qp);
info->domain_attr->rx_ctx_cnt = MIN(info->domain_attr->rx_ctx_cnt, device_attr.max_qp);
info->domain_attr->max_ep_tx_ctx = MIN(info->domain_attr->tx_ctx_cnt, device_attr.max_qp);
info->domain_attr->max_ep_rx_ctx = MIN(info->domain_attr->rx_ctx_cnt, device_attr.max_qp);
info->domain_attr->max_ep_srx_ctx = device_attr.max_qp;
info->domain_attr->mr_cnt = device_attr.max_mr;
if (info->ep_attr->type == FI_EP_RDM)
info->domain_attr->cntr_cnt = device_attr.max_qp * 4;
info->tx_attr->size = device_attr.max_qp_wr;
info->tx_attr->iov_limit = device_attr.max_sge;
info->tx_attr->rma_iov_limit = device_attr.max_sge;
info->rx_attr->size = device_attr.max_srq_wr ?
MIN(device_attr.max_qp_wr,
device_attr.max_srq_wr) :
device_attr.max_qp_wr;
info->rx_attr->iov_limit = MIN(device_attr.max_sge,
device_attr.max_srq_sge);
ret = fi_ibv_get_qp_cap(ctx, info);
if (ret)
return ret;
ret = ibv_query_port(ctx, 1, &port_attr);
if (ret) {
VERBS_INFO_ERRNO(FI_LOG_FABRIC, "ibv_query_port", errno);
return -errno;
}
info->ep_attr->max_msg_size = port_attr.max_msg_sz;
info->ep_attr->max_order_raw_size = port_attr.max_msg_sz;
info->ep_attr->max_order_waw_size = port_attr.max_msg_sz;
return 0;
}
