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Diffstat (limited to 'net/ethtool/ioctl.c')
-rw-r--r--net/ethtool/ioctl.c126
1 files changed, 68 insertions, 58 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 755a4be01bef..5f49a105fc73 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -1061,15 +1061,15 @@ EXPORT_SYMBOL(netdev_rss_key_fill);
static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
void __user *useraddr)
{
- u32 user_size, dev_size;
- u32 *indir;
+ struct ethtool_rxfh_param rxfh = {};
+ u32 user_size;
int ret;
if (!dev->ethtool_ops->get_rxfh_indir_size ||
!dev->ethtool_ops->get_rxfh)
return -EOPNOTSUPP;
- dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
- if (dev_size == 0)
+ rxfh.indir_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
+ if (rxfh.indir_size == 0)
return -EOPNOTSUPP;
if (copy_from_user(&user_size,
@@ -1078,41 +1078,41 @@ static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
return -EFAULT;
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
- &dev_size, sizeof(dev_size)))
+ &rxfh.indir_size, sizeof(rxfh.indir_size)))
return -EFAULT;
/* If the user buffer size is 0, this is just a query for the
* device table size. Otherwise, if it's smaller than the
* device table size it's an error.
*/
- if (user_size < dev_size)
+ if (user_size < rxfh.indir_size)
return user_size == 0 ? 0 : -EINVAL;
- indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
- if (!indir)
+ rxfh.indir = kcalloc(rxfh.indir_size, sizeof(rxfh.indir[0]), GFP_USER);
+ if (!rxfh.indir)
return -ENOMEM;
- ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
+ ret = dev->ethtool_ops->get_rxfh(dev, &rxfh);
if (ret)
goto out;
-
if (copy_to_user(useraddr +
offsetof(struct ethtool_rxfh_indir, ring_index[0]),
- indir, dev_size * sizeof(indir[0])))
+ rxfh.indir, rxfh.indir_size * sizeof(*rxfh.indir)))
ret = -EFAULT;
out:
- kfree(indir);
+ kfree(rxfh.indir);
return ret;
}
static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
void __user *useraddr)
{
- struct ethtool_rxnfc rx_rings;
- u32 user_size, dev_size, i;
- u32 *indir;
const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rxfh_param rxfh_dev = {};
+ struct netlink_ext_ack *extack = NULL;
+ struct ethtool_rxnfc rx_rings;
+ u32 user_size, i;
int ret;
u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
@@ -1120,8 +1120,8 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
!ops->get_rxnfc)
return -EOPNOTSUPP;
- dev_size = ops->get_rxfh_indir_size(dev);
- if (dev_size == 0)
+ rxfh_dev.indir_size = ops->get_rxfh_indir_size(dev);
+ if (rxfh_dev.indir_size == 0)
return -EOPNOTSUPP;
if (copy_from_user(&user_size,
@@ -1129,11 +1129,12 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
sizeof(user_size)))
return -EFAULT;
- if (user_size != 0 && user_size != dev_size)
+ if (user_size != 0 && user_size != rxfh_dev.indir_size)
return -EINVAL;
- indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
- if (!indir)
+ rxfh_dev.indir = kcalloc(rxfh_dev.indir_size,
+ sizeof(rxfh_dev.indir[0]), GFP_USER);
+ if (!rxfh_dev.indir)
return -ENOMEM;
rx_rings.cmd = ETHTOOL_GRXRINGS;
@@ -1142,18 +1143,21 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
goto out;
if (user_size == 0) {
- for (i = 0; i < dev_size; i++)
+ u32 *indir = rxfh_dev.indir;
+
+ for (i = 0; i < rxfh_dev.indir_size; i++)
indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
} else {
- ret = ethtool_copy_validate_indir(indir,
+ ret = ethtool_copy_validate_indir(rxfh_dev.indir,
useraddr + ringidx_offset,
&rx_rings,
- dev_size);
+ rxfh_dev.indir_size);
if (ret)
goto out;
}
- ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE);
+ rxfh_dev.hfunc = ETH_RSS_HASH_NO_CHANGE;
+ ret = ops->set_rxfh(dev, &rxfh_dev, extack);
if (ret)
goto out;
@@ -1164,32 +1168,29 @@ static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
dev->priv_flags |= IFF_RXFH_CONFIGURED;
out:
- kfree(indir);
+ kfree(rxfh_dev.indir);
return ret;
}
static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
void __user *useraddr)
{
- int ret;
const struct ethtool_ops *ops = dev->ethtool_ops;
+ struct ethtool_rxfh_param rxfh_dev = {};
u32 user_indir_size, user_key_size;
- u32 dev_indir_size = 0, dev_key_size = 0;
struct ethtool_rxfh rxfh;
- u32 total_size;
u32 indir_bytes;
- u32 *indir = NULL;
- u8 dev_hfunc = 0;
- u8 *hkey = NULL;
u8 *rss_config;
+ u32 total_size;
+ int ret;
if (!ops->get_rxfh)
return -EOPNOTSUPP;
if (ops->get_rxfh_indir_size)
- dev_indir_size = ops->get_rxfh_indir_size(dev);
+ rxfh_dev.indir_size = ops->get_rxfh_indir_size(dev);
if (ops->get_rxfh_key_size)
- dev_key_size = ops->get_rxfh_key_size(dev);
+ rxfh_dev.key_size = ops->get_rxfh_key_size(dev);
if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
return -EFAULT;
@@ -1203,38 +1204,37 @@ static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
if (rxfh.rss_context && !ops->get_rxfh_context)
return -EOPNOTSUPP;
- rxfh.indir_size = dev_indir_size;
- rxfh.key_size = dev_key_size;
+ rxfh.indir_size = rxfh_dev.indir_size;
+ rxfh.key_size = rxfh_dev.key_size;
if (copy_to_user(useraddr, &rxfh, sizeof(rxfh)))
return -EFAULT;
- if ((user_indir_size && (user_indir_size != dev_indir_size)) ||
- (user_key_size && (user_key_size != dev_key_size)))
+ if ((user_indir_size && user_indir_size != rxfh_dev.indir_size) ||
+ (user_key_size && user_key_size != rxfh_dev.key_size))
return -EINVAL;
- indir_bytes = user_indir_size * sizeof(indir[0]);
+ indir_bytes = user_indir_size * sizeof(rxfh_dev.indir[0]);
total_size = indir_bytes + user_key_size;
rss_config = kzalloc(total_size, GFP_USER);
if (!rss_config)
return -ENOMEM;
if (user_indir_size)
- indir = (u32 *)rss_config;
+ rxfh_dev.indir = (u32 *)rss_config;
if (user_key_size)
- hkey = rss_config + indir_bytes;
+ rxfh_dev.key = rss_config + indir_bytes;
if (rxfh.rss_context)
- ret = dev->ethtool_ops->get_rxfh_context(dev, indir, hkey,
- &dev_hfunc,
+ ret = dev->ethtool_ops->get_rxfh_context(dev, &rxfh_dev,
rxfh.rss_context);
else
- ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc);
+ ret = dev->ethtool_ops->get_rxfh(dev, &rxfh_dev);
if (ret)
goto out;
if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
- &dev_hfunc, sizeof(rxfh.hfunc))) {
+ &rxfh_dev.hfunc, sizeof(rxfh.hfunc))) {
ret = -EFAULT;
} else if (copy_to_user(useraddr +
offsetof(struct ethtool_rxfh, rss_config[0]),
@@ -1250,16 +1250,17 @@ out:
static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
void __user *useraddr)
{
- int ret;
+ u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
const struct ethtool_ops *ops = dev->ethtool_ops;
+ u32 dev_indir_size = 0, dev_key_size = 0, i;
+ struct ethtool_rxfh_param rxfh_dev = {};
+ struct netlink_ext_ack *extack = NULL;
struct ethtool_rxnfc rx_rings;
struct ethtool_rxfh rxfh;
- u32 dev_indir_size = 0, dev_key_size = 0, i;
- u32 *indir = NULL, indir_bytes = 0;
- u8 *hkey = NULL;
- u8 *rss_config;
- u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
bool delete = false;
+ u32 indir_bytes = 0;
+ u8 *rss_config;
+ int ret;
if (!ops->get_rxnfc || !ops->set_rxfh)
return -EOPNOTSUPP;
@@ -1291,7 +1292,7 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
return -EINVAL;
if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
- indir_bytes = dev_indir_size * sizeof(indir[0]);
+ indir_bytes = dev_indir_size * sizeof(rxfh_dev.indir[0]);
rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
if (!rss_config)
@@ -1308,8 +1309,9 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
*/
if (rxfh.indir_size &&
rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
- indir = (u32 *)rss_config;
- ret = ethtool_copy_validate_indir(indir,
+ rxfh_dev.indir = (u32 *)rss_config;
+ rxfh_dev.indir_size = dev_indir_size;
+ ret = ethtool_copy_validate_indir(rxfh_dev.indir,
useraddr + rss_cfg_offset,
&rx_rings,
rxfh.indir_size);
@@ -1317,7 +1319,11 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
goto out;
} else if (rxfh.indir_size == 0) {
if (rxfh.rss_context == 0) {
- indir = (u32 *)rss_config;
+ u32 *indir;
+
+ rxfh_dev.indir = (u32 *)rss_config;
+ rxfh_dev.indir_size = dev_indir_size;
+ indir = rxfh_dev.indir;
for (i = 0; i < dev_indir_size; i++)
indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
} else {
@@ -1326,8 +1332,9 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
}
if (rxfh.key_size) {
- hkey = rss_config + indir_bytes;
- if (copy_from_user(hkey,
+ rxfh_dev.key_size = dev_key_size;
+ rxfh_dev.key = rss_config + indir_bytes;
+ if (copy_from_user(rxfh_dev.key,
useraddr + rss_cfg_offset + indir_bytes,
rxfh.key_size)) {
ret = -EFAULT;
@@ -1335,11 +1342,14 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
}
}
+ rxfh_dev.hfunc = rxfh.hfunc;
+
if (rxfh.rss_context)
- ret = ops->set_rxfh_context(dev, indir, hkey, rxfh.hfunc,
+ ret = ops->set_rxfh_context(dev, &rxfh_dev,
&rxfh.rss_context, delete);
else
- ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc);
+ ret = ops->set_rxfh(dev, &rxfh_dev, extack);
+
if (ret)
goto out;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 12:48:11 +0100