sigio_broken(random_fd);
hwrng.name = RNG_MODULE_NAME;
hwrng.read = rng_dev_read;
- hwrng.quality = 1024;
err = hwrng_register(&hwrng);
if (err) {
return -ENOMEM;
rng->ops.read = cavium_rng_read;
- rng->ops.quality = 1000;
pci_set_drvdata(pdev, rng);
return -ENOMEM;
rng->ops.read = cn10k_rng_read;
- rng->ops.quality = 1000;
rng->ops.priv = (unsigned long)rng;
reset_rng_health_state(rng);
static int data_avail;
static u8 *rng_buffer, *rng_fillbuf;
static unsigned short current_quality;
-static unsigned short default_quality; /* = 0; default to "off" */
+static unsigned short default_quality = 1024; /* default to maximum */
module_param(current_quality, ushort, 0644);
MODULE_PARM_DESC(current_quality,
"current hwrng entropy estimation per 1024 bits of input -- obsolete, use rng_quality instead");
module_param(default_quality, ushort, 0644);
MODULE_PARM_DESC(default_quality,
- "default entropy content of hwrng per 1024 bits of input");
+ "default maximum entropy content of hwrng per 1024 bits of input");
static void drop_current_rng(void);
static int hwrng_init(struct hwrng *rng);
reinit_completion(&rng->cleanup_done);
skip_init:
- if (!rng->quality)
- rng->quality = default_quality;
- if (rng->quality > 1024)
- rng->quality = 1024;
+ rng->quality = min_t(u16, min_t(u16, default_quality, 1024), rng->quality ?: 1024);
current_quality = rng->quality; /* obsolete */
return 0;
rng_priv->rng.read = mpfs_rng_read;
rng_priv->rng.name = pdev->name;
- rng_priv->rng.quality = 1024;
platform_set_drvdata(pdev, rng_priv);
priv->rng.name = pdev->name;
priv->rng.read = npcm_rng_read;
priv->rng.priv = (unsigned long)&pdev->dev;
- priv->rng.quality = 1000;
priv->clkp = (u32)(uintptr_t)of_device_get_match_data(&pdev->dev);
writel(NPCM_RNG_M1ROSEL, priv->base + NPCM_RNGMODE_REG);
.name = "s390-trng",
.data_read = trng_hwrng_data_read,
.read = trng_hwrng_read,
- .quality = 1024,
};
if (!of_property_read_u32(pdev->dev.of_node,
"quality", &i))
priv->rng_ops.quality = i;
- else
- priv->rng_ops.quality = 0;
} else {
period = pdata->period;
priv->rng_ops.quality = pdata->quality;
.cleanup = virtio_cleanup,
.priv = (unsigned long)vi,
.name = vi->name,
- .quality = 1000,
};
vdev->priv = vi;
}
ce->trng.name = "sun8i Crypto Engine TRNG";
ce->trng.read = sun8i_ce_trng_read;
- ce->trng.quality = 1000;
ret = hwrng_register(&ce->trng);
if (ret)
i2c_priv->hwrng.name = dev_name(&client->dev);
i2c_priv->hwrng.read = atmel_sha204a_rng_read;
- i2c_priv->hwrng.quality = 1024;
ret = devm_hwrng_register(&client->dev, &i2c_priv->hwrng);
if (ret)
ctx->rng.cleanup = caam_cleanup;
ctx->rng.read = caam_read;
ctx->rng.priv = (unsigned long)ctx;
- ctx->rng.quality = 1024;
dev_info(ctrldev, "registering rng-caam\n");
rwtm->hwrng.name = DRIVER_NAME "_hwrng";
rwtm->hwrng.read = mox_hwrng_read;
rwtm->hwrng.priv = (unsigned long) rwtm;
- rwtm->hwrng.quality = 1024;
ret = devm_hwrng_register(dev, &rwtm->hwrng);
if (ret < 0) {
EXPORT_TRACEPOINT_SYMBOL(s390_zcrypt_req);
EXPORT_TRACEPOINT_SYMBOL(s390_zcrypt_rep);
-static int zcrypt_hwrng_seed = 1;
-module_param_named(hwrng_seed, zcrypt_hwrng_seed, int, 0440);
-MODULE_PARM_DESC(hwrng_seed, "Turn on/off hwrng auto seed, default is 1 (on).");
-
DEFINE_SPINLOCK(zcrypt_list_lock);
LIST_HEAD(zcrypt_card_list);
goto out;
}
zcrypt_rng_buffer_index = 0;
- if (!zcrypt_hwrng_seed)
- zcrypt_rng_dev.quality = 0;
rc = hwrng_register(&zcrypt_rng_dev);
if (rc)
goto out_free;
dev->hwrng.name = dev->name ? dev->name : chaoskey_driver.name;
dev->hwrng.read = chaoskey_rng_read;
- dev->hwrng.quality = 1024;
dev->hwrng_registered = (hwrng_register(&dev->hwrng) == 0);
if (!dev->hwrng_registered)
* @priv: Private data, for use by the RNG driver.
* @quality: Estimation of true entropy in RNG's bitstream
* (in bits of entropy per 1024 bits of input;
- * valid values: 1 to 1024, or 0 for unknown).
+ * valid values: 1 to 1024, or 0 for maximum).
*/
struct hwrng {
const char *name;