static int mv_cesa_dev_dma_init(struct mv_cesa_dev *cesa)
{
struct device *dev = cesa->dev;
struct mv_cesa_dev_dma *dma;
if (!cesa->caps->has_tdma)
return 0;
dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL);
if (!dma)
return -ENOMEM;
dma->tdma_desc_pool = dmam_pool_create("tdma_desc", dev,
sizeof(struct mv_cesa_tdma_desc),
16, 0);
if (!dma->tdma_desc_pool)
return -ENOMEM;
dma->op_pool = dmam_pool_create("cesa_op", dev,
sizeof(struct mv_cesa_op_ctx), 16, 0);
if (!dma->op_pool)
return -ENOMEM;
dma->cache_pool = dmam_pool_create("cesa_cache", dev,
CESA_MAX_HASH_BLOCK_SIZE, 1, 0);
if (!dma->cache_pool)
return -ENOMEM;
dma->padding_pool = dmam_pool_create("cesa_padding", dev, 72, 1, 0);
if (!dma->cache_pool)
return -ENOMEM;
cesa->dma = dma;
return 0;
}
static int scif_peer_add_device(struct scif_dev *scifdev)
{
struct scif_peer_dev *spdev = rcu_dereference(scifdev->spdev);
char pool_name[16];
int ret;
ret = device_add(&spdev->dev);
put_device(&spdev->dev);
if (ret) {
dev_err(&scifdev->sdev->dev,
"dnode %d: peer device_add failed\n", scifdev->node);
goto put_spdev;
}
scnprintf(pool_name, sizeof(pool_name), "scif-%d", spdev->dnode);
scifdev->signal_pool = dmam_pool_create(pool_name, &scifdev->sdev->dev,
sizeof(struct scif_status), 1,
0);
if (!scifdev->signal_pool) {
dev_err(&scifdev->sdev->dev,
"dnode %d: dmam_pool_create failed\n", scifdev->node);
ret = -ENOMEM;
goto del_spdev;
}
dev_dbg(&spdev->dev, "Added peer dnode %d\n", spdev->dnode);
return 0;
del_spdev:
device_del(&spdev->dev);
put_spdev:
RCU_INIT_POINTER(scifdev->spdev, NULL);
synchronize_rcu();
put_device(&spdev->dev);
mutex_lock(&scif_info.conflock);
scif_info.total--;
mutex_unlock(&scif_info.conflock);
return ret;
}
