dma/idxd/device.c

112 	int rc, num_descs, i;
120 	rc = alloc_hw_descs(wq, num_descs);
121 	if (rc < 0)
122 		return rc;
127 		rc = -ENOMEM;
131 	rc = alloc_descs(wq, num_descs);
132 	if (rc < 0)
135 	rc = sbitmap_queue_init_node(&wq->sbq, num_descs, -1, false, GFP_KERNEL,
137 	if (rc < 0)
162 	return rc;
322 	int rc;
324 	rc = idxd_wq_disable(wq, false);
325 	if (rc < 0)
326 		return rc;
330 	rc = idxd_wq_enable(wq);
331 	if (rc < 0)
332 		return rc;
340 	int rc;
344 	rc = idxd_wq_disable(wq, false);
345 	if (rc < 0)
346 		return rc;
356 	rc = idxd_wq_enable(wq);
357 	if (rc < 0)
358 		return rc;
399 	int rc;
402 	rc = percpu_ref_init(&wq->wq_active, idxd_wq_ref_release,
404 	if (rc < 0)
405 		return rc;
755 	int rc;
764 		rc = -ENOMEM;
774 		rc = -ENOMEM;
805 	return rc;
1003 	int i, rc;
1008 		rc = idxd_wq_config_write(wq);
1009 		if (rc < 0)
1010 			return rc;
1108 	int rc;
1111 	rc = idxd_wqs_setup(idxd);
1112 	if (rc < 0)
1113 		return rc;
1115 	rc = idxd_engines_setup(idxd);
1116 	if (rc < 0)
1117 		return rc;
1121 	rc = idxd_wqs_config_write(idxd);
1122 	if (rc < 0)
1123 		return rc;
1125 	rc = idxd_groups_config_write(idxd);
1126 	if (rc < 0)
1127 		return rc;
1227 	int i, rc;
1241 		rc = idxd_wq_load_config(wq);
1242 		if (rc < 0)
1243 			return rc;
1329 	int rc;
1339 	rc = request_threaded_irq(ie->vector, NULL, idxd_wq_thread, 0, "idxd-portal", ie);
1340 	if (rc < 0) {
1346 		rc = idxd_device_request_int_handle(idxd, ie->id, &ie->int_handle,
1348 		if (rc < 0)
1362 	return rc;
1369 	int rc = -ENXIO;
1381 		rc = -EBUSY;
1437 	rc = 0;
1440 		rc = idxd_device_config(idxd);
1442 	if (rc < 0) {
1443 		dev_dbg(dev, "Writing wq %d config failed: %d\n", wq->id, rc);
1447 	rc = idxd_wq_enable(wq);
1448 	if (rc < 0) {
1449 		dev_dbg(dev, "wq %d enabling failed: %d\n", wq->id, rc);
1453 	rc = idxd_wq_map_portal(wq);
1454 	if (rc < 0) {
1456 		dev_dbg(dev, "wq %d portal mapping failed: %d\n", wq->id, rc);
1462 	rc = idxd_wq_request_irq(wq);
1463 	if (rc < 0) {
1465 		dev_dbg(dev, "WQ %d irq setup failed: %d\n", wq->id, rc);
1469 	rc = idxd_wq_alloc_resources(wq);
1470 	if (rc < 0) {
1476 	rc = idxd_wq_init_percpu_ref(wq);
1477 	if (rc < 0) {
1495 	return rc;
1524 	int rc = 0;
1539 		rc = idxd_device_config(idxd);
1541 	if (rc < 0)
1553 	rc = idxd_device_evl_setup(idxd);
1554 	if (rc < 0) {
1556 		return rc;
1560 	rc = idxd_device_enable(idxd);
1561 	if (rc < 0) {
1563 		return rc;
1567 	rc = idxd_register_dma_device(idxd);
1568 	if (rc < 0) {
1572 		return rc;