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-rw-r--r--net/core/dev.c75
-rw-r--r--net/core/ethtool.c106
-rw-r--r--net/core/filter.c2
-rw-r--r--net/core/link_watch.c2
-rw-r--r--net/core/net_namespace.c12
-rw-r--r--net/core/netpoll.c2
-rw-r--r--net/core/pktgen.c2
-rw-r--r--net/core/rtnetlink.c4
-rw-r--r--net/core/skbuff.c2
-rw-r--r--net/core/sock.c10
10 files changed, 168 insertions, 49 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 3da9fb06d47..379c993ff42 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2091,7 +2091,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
u32 features;
/*
- * If device doesnt need skb->dst, release it right now while
+ * If device doesn't need skb->dst, release it right now while
* its hot in this cpu cache
*/
if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
@@ -2151,7 +2151,7 @@ gso:
nskb->next = NULL;
/*
- * If device doesnt need nskb->dst, release it right now while
+ * If device doesn't need nskb->dst, release it right now while
* its hot in this cpu cache
*/
if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
@@ -2502,8 +2502,8 @@ static inline void ____napi_schedule(struct softnet_data *sd,
__u32 __skb_get_rxhash(struct sk_buff *skb)
{
int nhoff, hash = 0, poff;
- struct ipv6hdr *ip6;
- struct iphdr *ip;
+ const struct ipv6hdr *ip6;
+ const struct iphdr *ip;
u8 ip_proto;
u32 addr1, addr2, ihl;
union {
@@ -2518,7 +2518,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(*ip) + nhoff))
goto done;
- ip = (struct iphdr *) (skb->data + nhoff);
+ ip = (const struct iphdr *) (skb->data + nhoff);
if (ip->frag_off & htons(IP_MF | IP_OFFSET))
ip_proto = 0;
else
@@ -2531,7 +2531,7 @@ __u32 __skb_get_rxhash(struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(*ip6) + nhoff))
goto done;
- ip6 = (struct ipv6hdr *) (skb->data + nhoff);
+ ip6 = (const struct ipv6hdr *) (skb->data + nhoff);
ip_proto = ip6->nexthdr;
addr1 = (__force u32) ip6->saddr.s6_addr32[3];
addr2 = (__force u32) ip6->daddr.s6_addr32[3];
@@ -2970,8 +2970,8 @@ EXPORT_SYMBOL_GPL(br_fdb_test_addr_hook);
* when CONFIG_NET_CLS_ACT is? otherwise some useless instructions
* a compare and 2 stores extra right now if we dont have it on
* but have CONFIG_NET_CLS_ACT
- * NOTE: This doesnt stop any functionality; if you dont have
- * the ingress scheduler, you just cant add policies on ingress.
+ * NOTE: This doesn't stop any functionality; if you dont have
+ * the ingress scheduler, you just can't add policies on ingress.
*
*/
static int ing_filter(struct sk_buff *skb, struct netdev_queue *rxq)
@@ -3130,6 +3130,12 @@ another_round:
__this_cpu_inc(softnet_data.processed);
+ if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) {
+ skb = vlan_untag(skb);
+ if (unlikely(!skb))
+ goto out;
+ }
+
#ifdef CONFIG_NET_CLS_ACT
if (skb->tc_verd & TC_NCLS) {
skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
@@ -3177,7 +3183,7 @@ ncls:
ret = deliver_skb(skb, pt_prev, orig_dev);
pt_prev = NULL;
}
- if (vlan_hwaccel_do_receive(&skb)) {
+ if (vlan_do_receive(&skb)) {
ret = __netif_receive_skb(skb);
goto out;
} else if (unlikely(!skb))
@@ -3800,7 +3806,7 @@ static void net_rx_action(struct softirq_action *h)
* with netpoll's poll_napi(). Only the entity which
* obtains the lock and sees NAPI_STATE_SCHED set will
* actually make the ->poll() call. Therefore we avoid
- * accidently calling ->poll() when NAPI is not scheduled.
+ * accidentally calling ->poll() when NAPI is not scheduled.
*/
work = 0;
if (test_bit(NAPI_STATE_SCHED, &n->state)) {
@@ -5203,11 +5209,15 @@ u32 netdev_fix_features(struct net_device *dev, u32 features)
}
/* TSO requires that SG is present as well. */
- if ((features & NETIF_F_TSO) && !(features & NETIF_F_SG)) {
- netdev_info(dev, "Dropping NETIF_F_TSO since no SG feature.\n");
- features &= ~NETIF_F_TSO;
+ if ((features & NETIF_F_ALL_TSO) && !(features & NETIF_F_SG)) {
+ netdev_info(dev, "Dropping TSO features since no SG feature.\n");
+ features &= ~NETIF_F_ALL_TSO;
}
+ /* TSO ECN requires that TSO is present as well. */
+ if ((features & NETIF_F_ALL_TSO) == NETIF_F_TSO_ECN)
+ features &= ~NETIF_F_TSO_ECN;
+
/* Software GSO depends on SG. */
if ((features & NETIF_F_GSO) && !(features & NETIF_F_SG)) {
netdev_info(dev, "Dropping NETIF_F_GSO since no SG feature.\n");
@@ -5236,11 +5246,13 @@ u32 netdev_fix_features(struct net_device *dev, u32 features)
}
EXPORT_SYMBOL(netdev_fix_features);
-void netdev_update_features(struct net_device *dev)
+int __netdev_update_features(struct net_device *dev)
{
u32 features;
int err = 0;
+ ASSERT_RTNL();
+
features = netdev_get_wanted_features(dev);
if (dev->netdev_ops->ndo_fix_features)
@@ -5250,7 +5262,7 @@ void netdev_update_features(struct net_device *dev)
features = netdev_fix_features(dev, features);
if (dev->features == features)
- return;
+ return 0;
netdev_info(dev, "Features changed: 0x%08x -> 0x%08x\n",
dev->features, features);
@@ -5258,12 +5270,23 @@ void netdev_update_features(struct net_device *dev)
if (dev->netdev_ops->ndo_set_features)
err = dev->netdev_ops->ndo_set_features(dev, features);
- if (!err)
- dev->features = features;
- else if (err < 0)
+ if (unlikely(err < 0)) {
netdev_err(dev,
"set_features() failed (%d); wanted 0x%08x, left 0x%08x\n",
err, features, dev->features);
+ return -1;
+ }
+
+ if (!err)
+ dev->features = features;
+
+ return 1;
+}
+
+void netdev_update_features(struct net_device *dev)
+{
+ if (__netdev_update_features(dev))
+ netdev_features_change(dev);
}
EXPORT_SYMBOL(netdev_update_features);
@@ -5414,6 +5437,14 @@ int register_netdevice(struct net_device *dev)
dev->features &= ~NETIF_F_GSO;
}
+ /* Turn on no cache copy if HW is doing checksum */
+ dev->hw_features |= NETIF_F_NOCACHE_COPY;
+ if ((dev->features & NETIF_F_ALL_CSUM) &&
+ !(dev->features & NETIF_F_NO_CSUM)) {
+ dev->wanted_features |= NETIF_F_NOCACHE_COPY;
+ dev->features |= NETIF_F_NOCACHE_COPY;
+ }
+
/* Enable GRO and NETIF_F_HIGHDMA for vlans by default,
* vlan_dev_init() will do the dev->features check, so these features
* are enabled only if supported by underlying device.
@@ -5430,7 +5461,7 @@ int register_netdevice(struct net_device *dev)
goto err_uninit;
dev->reg_state = NETREG_REGISTERED;
- netdev_update_features(dev);
+ __netdev_update_features(dev);
/*
* Default initial state at registry is that the
@@ -6171,6 +6202,10 @@ u32 netdev_increment_features(u32 all, u32 one, u32 mask)
}
}
+ /* If device can't no cache copy, don't do for all */
+ if (!(one & NETIF_F_NOCACHE_COPY))
+ all &= ~NETIF_F_NOCACHE_COPY;
+
one |= NETIF_F_ALL_CSUM;
one |= all & NETIF_F_ONE_FOR_ALL;
@@ -6336,7 +6371,7 @@ static void __net_exit default_device_exit(struct net *net)
if (dev->rtnl_link_ops)
continue;
- /* Push remaing network devices to init_net */
+ /* Push remaining network devices to init_net */
snprintf(fb_name, IFNAMSIZ, "dev%d", dev->ifindex);
err = dev_change_net_namespace(dev, &init_net, fb_name);
if (err) {
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 74ead9eca12..d8b1a8d85a9 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -21,6 +21,8 @@
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
+#include <linux/rtnetlink.h>
+#include <linux/sched.h>
/*
* Some useful ethtool_ops methods that're device independent.
@@ -317,7 +319,7 @@ static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
dev->wanted_features &= ~features[0].valid;
dev->wanted_features |= features[0].valid & features[0].requested;
- netdev_update_features(dev);
+ __netdev_update_features(dev);
if ((dev->wanted_features ^ dev->features) & features[0].valid)
ret |= ETHTOOL_F_WISH;
@@ -359,7 +361,7 @@ static const char netdev_features_strings[ETHTOOL_DEV_FEATURE_WORDS * 32][ETH_GS
/* NETIF_F_NTUPLE */ "rx-ntuple-filter",
/* NETIF_F_RXHASH */ "rx-hashing",
/* NETIF_F_RXCSUM */ "rx-checksum",
- "",
+ /* NETIF_F_NOCACHE_COPY */ "tx-nocache-copy"
"",
};
@@ -499,7 +501,7 @@ static int ethtool_set_one_feature(struct net_device *dev,
else
dev->wanted_features &= ~mask;
- netdev_update_features(dev);
+ __netdev_update_features(dev);
return 0;
}
@@ -544,14 +546,14 @@ int __ethtool_set_flags(struct net_device *dev, u32 data)
}
/* allow changing only bits set in hw_features */
- changed = (data ^ dev->wanted_features) & flags_dup_features;
+ changed = (data ^ dev->features) & flags_dup_features;
if (changed & ~dev->hw_features)
return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
dev->wanted_features =
- (dev->wanted_features & ~changed) | data;
+ (dev->wanted_features & ~changed) | (data & dev->hw_features);
- netdev_update_features(dev);
+ __netdev_update_features(dev);
return 0;
}
@@ -908,6 +910,9 @@ static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev,
struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL;
int ret;
+ if (!ops->set_rx_ntuple)
+ return -EOPNOTSUPP;
+
if (!(dev->features & NETIF_F_NTUPLE))
return -EINVAL;
@@ -1441,6 +1446,35 @@ static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
return dev->ethtool_ops->set_ringparam(dev, &ringparam);
}
+static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
+ void __user *useraddr)
+{
+ struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
+
+ if (!dev->ethtool_ops->get_channels)
+ return -EOPNOTSUPP;
+
+ dev->ethtool_ops->get_channels(dev, &channels);
+
+ if (copy_to_user(useraddr, &channels, sizeof(channels)))
+ return -EFAULT;
+ return 0;
+}
+
+static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
+ void __user *useraddr)
+{
+ struct ethtool_channels channels;
+
+ if (!dev->ethtool_ops->set_channels)
+ return -EOPNOTSUPP;
+
+ if (copy_from_user(&channels, useraddr, sizeof(channels)))
+ return -EFAULT;
+
+ return dev->ethtool_ops->set_channels(dev, &channels);
+}
+
static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
{
struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
@@ -1618,14 +1652,64 @@ out:
static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
{
struct ethtool_value id;
+ static bool busy;
+ int rc;
- if (!dev->ethtool_ops->phys_id)
+ if (!dev->ethtool_ops->set_phys_id && !dev->ethtool_ops->phys_id)
return -EOPNOTSUPP;
+ if (busy)
+ return -EBUSY;
+
if (copy_from_user(&id, useraddr, sizeof(id)))
return -EFAULT;
- return dev->ethtool_ops->phys_id(dev, id.data);
+ if (!dev->ethtool_ops->set_phys_id)
+ /* Do it the old way */
+ return dev->ethtool_ops->phys_id(dev, id.data);
+
+ rc = dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
+ if (rc < 0)
+ return rc;
+
+ /* Drop the RTNL lock while waiting, but prevent reentry or
+ * removal of the device.
+ */
+ busy = true;
+ dev_hold(dev);
+ rtnl_unlock();
+
+ if (rc == 0) {
+ /* Driver will handle this itself */
+ schedule_timeout_interruptible(
+ id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
+ } else {
+ /* Driver expects to be called at twice the frequency in rc */
+ int n = rc * 2, i, interval = HZ / n;
+
+ /* Count down seconds */
+ do {
+ /* Count down iterations per second */
+ i = n;
+ do {
+ rtnl_lock();
+ rc = dev->ethtool_ops->set_phys_id(dev,
+ (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
+ rtnl_unlock();
+ if (rc)
+ break;
+ schedule_timeout_interruptible(interval);
+ } while (!signal_pending(current) && --i != 0);
+ } while (!signal_pending(current) &&
+ (id.data == 0 || --id.data != 0));
+ }
+
+ rtnl_lock();
+ dev_put(dev);
+ busy = false;
+
+ (void)dev->ethtool_ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
+ return rc;
}
static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
@@ -1953,6 +2037,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
case ETHTOOL_SGRO:
rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
break;
+ case ETHTOOL_GCHANNELS:
+ rc = ethtool_get_channels(dev, useraddr);
+ break;
+ case ETHTOOL_SCHANNELS:
+ rc = ethtool_set_channels(dev, useraddr);
+ break;
default:
rc = -EOPNOTSUPP;
}
diff --git a/net/core/filter.c b/net/core/filter.c
index 232b1873bb2..afb8afb066b 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -425,7 +425,7 @@ EXPORT_SYMBOL(sk_run_filter);
* As we dont want to clear mem[] array for each packet going through
* sk_run_filter(), we check that filter loaded by user never try to read
* a cell if not previously written, and we check all branches to be sure
- * a malicious user doesnt try to abuse us.
+ * a malicious user doesn't try to abuse us.
*/
static int check_load_and_stores(struct sock_filter *filter, int flen)
{
diff --git a/net/core/link_watch.c b/net/core/link_watch.c
index 01a1101b593..a7b34213186 100644
--- a/net/core/link_watch.c
+++ b/net/core/link_watch.c
@@ -129,7 +129,7 @@ static void linkwatch_schedule_work(int urgent)
if (!cancel_delayed_work(&linkwatch_work))
return;
- /* Otherwise we reschedule it again for immediate exection. */
+ /* Otherwise we reschedule it again for immediate execution. */
schedule_delayed_work(&linkwatch_work, 0);
}
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 3f860261c5e..1abb5084104 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -216,11 +216,14 @@ static void net_free(struct net *net)
kmem_cache_free(net_cachep, net);
}
-static struct net *net_create(void)
+struct net *copy_net_ns(unsigned long flags, struct net *old_net)
{
struct net *net;
int rv;
+ if (!(flags & CLONE_NEWNET))
+ return get_net(old_net);
+
net = net_alloc();
if (!net)
return ERR_PTR(-ENOMEM);
@@ -239,13 +242,6 @@ static struct net *net_create(void)
return net;
}
-struct net *copy_net_ns(unsigned long flags, struct net *old_net)
-{
- if (!(flags & CLONE_NEWNET))
- return get_net(old_net);
- return net_create();
-}
-
static DEFINE_SPINLOCK(cleanup_list_lock);
static LIST_HEAD(cleanup_list); /* Must hold cleanup_list_lock to touch */
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 06be2431753..46d9c3a4de2 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -539,7 +539,7 @@ int __netpoll_rx(struct sk_buff *skb)
{
int proto, len, ulen;
int hits = 0;
- struct iphdr *iph;
+ const struct iphdr *iph;
struct udphdr *uh;
struct netpoll_info *npinfo = skb->dev->npinfo;
struct netpoll *np, *tmp;
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index aeeece72b72..2fa6fee1b46 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2514,7 +2514,6 @@ static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev)
{
struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x;
int err = 0;
- struct iphdr *iph;
if (!x)
return 0;
@@ -2524,7 +2523,6 @@ static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev)
return 0;
spin_lock(&x->lock);
- iph = ip_hdr(skb);
err = x->outer_mode->output(x, skb);
if (err)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 49f7ea5b4c7..d7c4bb4b182 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -196,7 +196,7 @@ EXPORT_SYMBOL_GPL(__rtnl_register);
* as failure of this function is very unlikely, it can only happen due
* to lack of memory when allocating the chain to store all message
* handlers for a protocol. Meant for use in init functions where lack
- * of memory implies no sense in continueing.
+ * of memory implies no sense in continuing.
*/
void rtnl_register(int protocol, int msgtype,
rtnl_doit_func doit, rtnl_dumpit_func dumpit)
@@ -1440,7 +1440,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
errout:
if (err < 0 && modified && net_ratelimit())
printk(KERN_WARNING "A link change request failed with "
- "some changes comitted already. Interface %s may "
+ "some changes committed already. Interface %s may "
"have been left with an inconsistent configuration, "
"please check.\n", dev->name);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 801dd08908f..7ebeed0a877 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2267,7 +2267,7 @@ EXPORT_SYMBOL(skb_prepare_seq_read);
* of bytes already consumed and the next call to
* skb_seq_read() will return the remaining part of the block.
*
- * Note 1: The size of each block of data returned can be arbitary,
+ * Note 1: The size of each block of data returned can be arbitrary,
* this limitation is the cost for zerocopy seqeuental
* reads of potentially non linear data.
*
diff --git a/net/core/sock.c b/net/core/sock.c
index 7dfed792434..6e819780c23 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -215,7 +215,7 @@ __u32 sysctl_rmem_max __read_mostly = SK_RMEM_MAX;
__u32 sysctl_wmem_default __read_mostly = SK_WMEM_MAX;
__u32 sysctl_rmem_default __read_mostly = SK_RMEM_MAX;
-/* Maximal space eaten by iovec or ancilliary data plus some space */
+/* Maximal space eaten by iovec or ancillary data plus some space */
int sysctl_optmem_max __read_mostly = sizeof(unsigned long)*(2*UIO_MAXIOV+512);
EXPORT_SYMBOL(sysctl_optmem_max);
@@ -1175,7 +1175,7 @@ static void __sk_free(struct sock *sk)
void sk_free(struct sock *sk)
{
/*
- * We substract one from sk_wmem_alloc and can know if
+ * We subtract one from sk_wmem_alloc and can know if
* some packets are still in some tx queue.
* If not null, sock_wfree() will call __sk_free(sk) later
*/
@@ -1185,10 +1185,10 @@ void sk_free(struct sock *sk)
EXPORT_SYMBOL(sk_free);
/*
- * Last sock_put should drop referrence to sk->sk_net. It has already
- * been dropped in sk_change_net. Taking referrence to stopping namespace
+ * Last sock_put should drop reference to sk->sk_net. It has already
+ * been dropped in sk_change_net. Taking reference to stopping namespace
* is not an option.
- * Take referrence to a socket to remove it from hash _alive_ and after that
+ * Take reference to a socket to remove it from hash _alive_ and after that
* destroy it in the context of init_net.
*/
void sk_release_kernel(struct sock *sk)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-05 16:46:40 +0000