+ for (i = 0; i < ctx->nb_controllers; i++) {
+ if (ctx->controllers[i] == intf)
+ return 0;
+ if (ctx->controllers[i] > intf)
+ break;
+ }
+ target = i;
+
+ ctx->nb_controllers += 1;
+ new_size = ctx->nb_controllers * sizeof(ctx->controllers[0]);
+
+ new_controllers = rte_realloc(ctx->controllers, new_size, 0);
+ if (new_controllers == NULL) {
+ rte_free(ctx->controllers);
+ return ENOMEM;
+ }
+ ctx->controllers = new_controllers;
+
+ for (i = target + 1; i < ctx->nb_controllers; i++)
+ ctx->controllers[i] = ctx->controllers[i - 1];
+
+ ctx->controllers[target] = intf;
+
+ return 0;
+}
+
+static efx_rc_t
+sfc_process_mport_journal_entry(struct sfc_mport_journal_ctx *ctx,
+ efx_mport_desc_t *mport)
+{
+ efx_mport_sel_t ethdev_mport;
+ int rc;
+
+ sfc_dbg(ctx->sa,
+ "processing mport id %u (controller %u pf %u vf %u)",
+ mport->emd_id.id, mport->emd_vnic.ev_intf,
+ mport->emd_vnic.ev_pf, mport->emd_vnic.ev_vf);
+ efx_mae_mport_invalid(ðdev_mport);
+
+ if (!ctx->controllers_assigned) {
+ rc = sfc_journal_ctx_add_controller(ctx,
+ mport->emd_vnic.ev_intf);
+ if (rc != 0)
+ return rc;
+ }
+
+ return 0;
+}
+
+static efx_rc_t
+sfc_process_mport_journal_cb(void *data, efx_mport_desc_t *mport,
+ size_t mport_len)
+{
+ struct sfc_mport_journal_ctx *ctx = data;
+
+ if (ctx == NULL || ctx->sa == NULL) {
+ sfc_err(ctx->sa, "received NULL context or SFC adapter");
+ return EINVAL;
+ }
+
+ if (mport_len != sizeof(*mport)) {
+ sfc_err(ctx->sa, "actual and expected mport buffer sizes differ");
+ return EINVAL;
+ }
+
+ SFC_ASSERT(sfc_adapter_is_locked(ctx->sa));
+
+ /*
+ * If a zombie flag is set, it means the mport has been marked for
+ * deletion and cannot be used for any new operations. The mport will
+ * be destroyed completely once all references to it are released.
+ */
+ if (mport->emd_zombie) {
+ sfc_dbg(ctx->sa, "mport is a zombie, skipping");
+ return 0;
+ }
+ if (mport->emd_type != EFX_MPORT_TYPE_VNIC) {
+ sfc_dbg(ctx->sa, "mport is not a VNIC, skipping");
+ return 0;
+ }
+ if (mport->emd_vnic.ev_client_type != EFX_MPORT_VNIC_CLIENT_FUNCTION) {
+ sfc_dbg(ctx->sa, "mport is not a function, skipping");
+ return 0;
+ }
+ if (mport->emd_vnic.ev_handle == ctx->mcdi_handle) {
+ sfc_dbg(ctx->sa, "mport is this driver instance, skipping");
+ return 0;
+ }
+
+ return sfc_process_mport_journal_entry(ctx, mport);
+}
+
+static int
+sfc_process_mport_journal(struct sfc_adapter *sa)
+{
+ struct sfc_mport_journal_ctx ctx;
+ const efx_pcie_interface_t *controllers;
+ size_t nb_controllers;
+ efx_rc_t efx_rc;
+ int rc;
+
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.sa = sa;
+ ctx.switch_domain_id = sa->mae.switch_domain_id;
+
+ efx_rc = efx_mcdi_get_own_client_handle(sa->nic, &ctx.mcdi_handle);
+ if (efx_rc != 0) {
+ sfc_err(sa, "failed to get own MCDI handle");
+ SFC_ASSERT(efx_rc > 0);
+ return efx_rc;
+ }
+
+ rc = sfc_mae_switch_domain_controllers(ctx.switch_domain_id,
+ &controllers, &nb_controllers);
+ if (rc != 0) {
+ sfc_err(sa, "failed to get controller mapping");
+ return rc;
+ }
+
+ ctx.controllers_assigned = controllers != NULL;
+ ctx.controllers = NULL;
+ ctx.nb_controllers = 0;
+
+ efx_rc = efx_mae_read_mport_journal(sa->nic,
+ sfc_process_mport_journal_cb, &ctx);
+ if (efx_rc != 0) {
+ sfc_err(sa, "failed to process MAE mport journal");
+ SFC_ASSERT(efx_rc > 0);
+ return efx_rc;
+ }
+
+ if (controllers == NULL) {
+ rc = sfc_mae_switch_domain_map_controllers(ctx.switch_domain_id,
+ ctx.controllers,
+ ctx.nb_controllers);
+ if (rc != 0)
+ return rc;
+ }
+
+ return 0;