+/*The function checks if there are live vf, return the num of them*/
+static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_slave_state *s_state;
+ int i;
+ int ret = 0;
+
+ for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
+ s_state = &priv->mfunc.master.slave_state[i];
+ if (s_state->active && s_state->last_cmd !=
+ MLX4_COMM_CMD_RESET) {
+ mlx4_warn(dev, "%s: slave: %d is still active\n",
+ __func__, i);
+ ret++;
+ }
+ }
+ return ret;
+}
+
+static int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ struct mlx4_slave_state *s_slave;
+
+ if (!mlx4_is_master(dev))
+ return 0;
+
+ s_slave = &priv->mfunc.master.slave_state[slave];
+ return !!s_slave->active;
+}
+EXPORT_SYMBOL(mlx4_is_slave_active);
+
+static int mlx4_slave_cap(struct mlx4_dev *dev)
+{
+ int err;
+ u32 page_size;
+ struct mlx4_dev_cap dev_cap;
+ struct mlx4_func_cap func_cap;
+ struct mlx4_init_hca_param hca_param;
+ int i;
+
+ memset(&hca_param, 0, sizeof(hca_param));
+ err = mlx4_QUERY_HCA(dev, &hca_param);
+ if (err) {
+ mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
+ return err;
+ }
+
+ /*fail if the hca has an unknown capability */
+ if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
+ HCA_GLOBAL_CAP_MASK) {
+ mlx4_err(dev, "Unknown hca global capabilities\n");
+ return -ENOSYS;
+ }
+
+ mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
+
+ memset(&dev_cap, 0, sizeof(dev_cap));
+ err = mlx4_dev_cap(dev, &dev_cap);
+ if (err) {
+ mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
+ return err;
+ }
+
+ page_size = ~dev->caps.page_size_cap + 1;
+ mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
+ if (page_size > PAGE_SIZE) {
+ mlx4_err(dev, "HCA minimum page size of %d bigger than "
+ "kernel PAGE_SIZE of %ld, aborting.\n",
+ page_size, PAGE_SIZE);
+ return -ENODEV;
+ }
+
+ /* slave gets uar page size from QUERY_HCA fw command */
+ dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
+
+ /* TODO: relax this assumption */
+ if (dev->caps.uar_page_size != PAGE_SIZE) {
+ mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
+ dev->caps.uar_page_size, PAGE_SIZE);
+ return -ENODEV;
+ }
+
+ memset(&func_cap, 0, sizeof(func_cap));
+ err = mlx4_QUERY_FUNC_CAP(dev, &func_cap);
+ if (err) {
+ mlx4_err(dev, "QUERY_FUNC_CAP command failed, aborting.\n");
+ return err;
+ }
+
+ if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
+ PF_CONTEXT_BEHAVIOUR_MASK) {
+ mlx4_err(dev, "Unknown pf context behaviour\n");
+ return -ENOSYS;
+ }
+
+ dev->caps.function = func_cap.function;
+ dev->caps.num_ports = func_cap.num_ports;
+ dev->caps.num_qps = func_cap.qp_quota;
+ dev->caps.num_srqs = func_cap.srq_quota;
+ dev->caps.num_cqs = func_cap.cq_quota;
+ dev->caps.num_eqs = func_cap.max_eq;
+ dev->caps.reserved_eqs = func_cap.reserved_eq;
+ dev->caps.num_mpts = func_cap.mpt_quota;
+ dev->caps.num_mtts = func_cap.mtt_quota;
+ dev->caps.num_pds = MLX4_NUM_PDS;
+ dev->caps.num_mgms = 0;
+ dev->caps.num_amgms = 0;
+
+ for (i = 1; i <= dev->caps.num_ports; ++i)
+ dev->caps.port_mask[i] = dev->caps.port_type[i];
+
+ if (dev->caps.num_ports > MLX4_MAX_PORTS) {
+ mlx4_err(dev, "HCA has %d ports, but we only support %d, "
+ "aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
+ return -ENODEV;
+ }
+
+ if (dev->caps.uar_page_size * (dev->caps.num_uars -
+ dev->caps.reserved_uars) >
+ pci_resource_len(dev->pdev, 2)) {
+ mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
+ "PCI resource 2 size of 0x%llx, aborting.\n",
+ dev->caps.uar_page_size * dev->caps.num_uars,
+ (unsigned long long) pci_resource_len(dev->pdev, 2));
+ return -ENODEV;
+ }
+
+#if 0
+ mlx4_warn(dev, "sqp_demux:%d\n", dev->caps.sqp_demux);
+ mlx4_warn(dev, "num_uars:%d reserved_uars:%d uar region:0x%x bar2:0x%llx\n",
+ dev->caps.num_uars, dev->caps.reserved_uars,
+ dev->caps.uar_page_size * dev->caps.num_uars,
+ pci_resource_len(dev->pdev, 2));
+ mlx4_warn(dev, "num_eqs:%d reserved_eqs:%d\n", dev->caps.num_eqs,
+ dev->caps.reserved_eqs);
+ mlx4_warn(dev, "num_pds:%d reserved_pds:%d slave_pd_shift:%d pd_base:%d\n",
+ dev->caps.num_pds, dev->caps.reserved_pds,
+ dev->caps.slave_pd_shift, dev->caps.pd_base);
+#endif
+ return 0;
+}