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Message-Id: <1303515367-25595-2-git-send-email-maheshb@google.com>
Date: Fri, 22 Apr 2011 16:35:59 -0700
From: Mahesh Bandewar <maheshb@...gle.com>
To: David Miller <davem@...emloft.net>
Cc: netdev <netdev@...r.kernel.org>,
Mahesh Bandewar <maheshb@...gle.com>
Subject: [PATCH 1/9] net-dev: Convert (hw_/vlan_/wanted_)features fields from u32 type to u64
Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
---
include/linux/netdevice.h | 86 ++++++++++++++++++++++----------------------
net/core/dev.c | 26 +++++++-------
2 files changed, 56 insertions(+), 56 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index cb8178a..7ec5af5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -877,12 +877,12 @@ struct netdev_tc_txq {
* Called to release previously enslaved netdev.
*
* Feature/offload setting functions.
- * u32 (*ndo_fix_features)(struct net_device *dev, u32 features);
+ * u64 (*ndo_fix_features)(struct net_device *dev, u64 features);
* Adjusts the requested feature flags according to device-specific
* constraints, and returns the resulting flags. Must not modify
* the device state.
*
- * int (*ndo_set_features)(struct net_device *dev, u32 features);
+ * int (*ndo_set_features)(struct net_device *dev, u64 features);
* Called to update device configuration to new features. Passed
* feature set might be less than what was returned by ndo_fix_features()).
* Must return >0 or -errno if it changed dev->features itself.
@@ -974,10 +974,10 @@ struct net_device_ops {
struct net_device *slave_dev);
int (*ndo_del_slave)(struct net_device *dev,
struct net_device *slave_dev);
- u32 (*ndo_fix_features)(struct net_device *dev,
- u32 features);
+ u64 (*ndo_fix_features)(struct net_device *dev,
+ u64 features);
int (*ndo_set_features)(struct net_device *dev,
- u32 features);
+ u64 features);
};
/*
@@ -1030,43 +1030,43 @@ struct net_device {
struct list_head unreg_list;
/* currently active device features */
- u32 features;
+ u64 features;
/* user-changeable features */
- u32 hw_features;
+ u64 hw_features;
/* user-requested features */
- u32 wanted_features;
+ u64 wanted_features;
/* mask of features inheritable by VLAN devices */
- u32 vlan_features;
+ u64 vlan_features;
/* Net device feature bits; if you change something,
* also update netdev_features_strings[] in ethtool.c */
-#define NETIF_F_SG 1 /* Scatter/gather IO. */
-#define NETIF_F_IP_CSUM 2 /* Can checksum TCP/UDP over IPv4. */
-#define NETIF_F_NO_CSUM 4 /* Does not require checksum. F.e. loopack. */
-#define NETIF_F_HW_CSUM 8 /* Can checksum all the packets. */
-#define NETIF_F_IPV6_CSUM 16 /* Can checksum TCP/UDP over IPV6 */
-#define NETIF_F_HIGHDMA 32 /* Can DMA to high memory. */
-#define NETIF_F_FRAGLIST 64 /* Scatter/gather IO. */
-#define NETIF_F_HW_VLAN_TX 128 /* Transmit VLAN hw acceleration */
-#define NETIF_F_HW_VLAN_RX 256 /* Receive VLAN hw acceleration */
-#define NETIF_F_HW_VLAN_FILTER 512 /* Receive filtering on VLAN */
-#define NETIF_F_VLAN_CHALLENGED 1024 /* Device cannot handle VLAN packets */
-#define NETIF_F_GSO 2048 /* Enable software GSO. */
-#define NETIF_F_LLTX 4096 /* LockLess TX - deprecated. Please */
- /* do not use LLTX in new drivers */
-#define NETIF_F_NETNS_LOCAL 8192 /* Does not change network namespaces */
-#define NETIF_F_GRO 16384 /* Generic receive offload */
-#define NETIF_F_LRO 32768 /* large receive offload */
+#define NETIF_F_SG ((u64)1 << 0) /* Scatter/gather IO. */
+#define NETIF_F_IP_CSUM ((u64)1 << 1) /* Can checksum TCP/UDP over IPv4. */
+#define NETIF_F_NO_CSUM ((u64)1 << 2) /* Does not require checksum. F.e. loopack. */
+#define NETIF_F_HW_CSUM ((u64)1 << 3) /* Can checksum all the packets. */
+#define NETIF_F_IPV6_CSUM ((u64)1 << 4) /* Can checksum TCP/UDP over IPV6 */
+#define NETIF_F_HIGHDMA ((u64)1 << 5) /* Can DMA to high memory. */
+#define NETIF_F_FRAGLIST ((u64)1 << 6) /* Scatter/gather IO. */
+#define NETIF_F_HW_VLAN_TX ((u64)1 << 7) /* Transmit VLAN hw acceleration */
+#define NETIF_F_HW_VLAN_RX ((u64)1 << 8) /* Receive VLAN hw acceleration */
+#define NETIF_F_HW_VLAN_FILTER ((u64)1 << 9) /* Receive filtering on VLAN */
+#define NETIF_F_VLAN_CHALLENGED ((u64)1 << 10) /* Device cannot handle VLAN packets */
+#define NETIF_F_GSO ((u64)1 << 11) /* Enable software GSO. */
+#define NETIF_F_LLTX ((u64)1 << 12) /* LockLess TX - deprecated. Please */
+ /* do not use LLTX in new drivers */
+#define NETIF_F_NETNS_LOCAL ((u64)1 << 13) /* Does not change network namespaces */
+#define NETIF_F_GRO ((u64)1 << 14) /* Generic receive offload */
+#define NETIF_F_LRO ((u64)1 << 15) /* large receive offload */
/* the GSO_MASK reserves bits 16 through 23 */
-#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */
-#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */
-#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
-#define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */
-#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */
-#define NETIF_F_RXCSUM (1 << 29) /* Receive checksumming offload */
-#define NETIF_F_NOCACHE_COPY (1 << 30) /* Use no-cache copyfromuser */
+#define NETIF_F_FCOE_CRC ((u64)1 << 24) /* FCoE CRC32 */
+#define NETIF_F_SCTP_CSUM ((u64)1 << 25) /* SCTP checksum offload */
+#define NETIF_F_FCOE_MTU ((u64)1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
+#define NETIF_F_NTUPLE ((u64)1 << 27) /* N-tuple filters supported */
+#define NETIF_F_RXHASH ((u64)1 << 28) /* Receive hashing offload */
+#define NETIF_F_RXCSUM ((u64)1 << 29) /* Receive checksumming offload */
+#define NETIF_F_NOCACHE_COPY ((u64)1 << 30) /* Use no-cache copyfromuser */
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
@@ -1541,7 +1541,7 @@ struct packet_type {
struct packet_type *,
struct net_device *);
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
- u32 features);
+ u64 features);
int (*gso_send_check)(struct sk_buff *skb);
struct sk_buff **(*gro_receive)(struct sk_buff **head,
struct sk_buff *skb);
@@ -2518,7 +2518,7 @@ extern int netdev_set_master(struct net_device *dev, struct net_device *master)
extern int netdev_set_bond_master(struct net_device *dev,
struct net_device *master);
extern int skb_checksum_help(struct sk_buff *skb);
-extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features);
+extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, u64 features);
#ifdef CONFIG_BUG
extern void netdev_rx_csum_fault(struct net_device *dev);
#else
@@ -2545,33 +2545,33 @@ extern char *netdev_drivername(const struct net_device *dev, char *buffer, int l
extern void linkwatch_run_queue(void);
-static inline u32 netdev_get_wanted_features(struct net_device *dev)
+static inline u64 netdev_get_wanted_features(struct net_device *dev)
{
return (dev->features & ~dev->hw_features) | dev->wanted_features;
}
-u32 netdev_increment_features(u32 all, u32 one, u32 mask);
-u32 netdev_fix_features(struct net_device *dev, u32 features);
+u64 netdev_increment_features(u64 all, u64 one, u64 mask);
+u64 netdev_fix_features(struct net_device *dev, u64 features);
int __netdev_update_features(struct net_device *dev);
void netdev_update_features(struct net_device *dev);
void netif_stacked_transfer_operstate(const struct net_device *rootdev,
struct net_device *dev);
-u32 netif_skb_features(struct sk_buff *skb);
+u64 netif_skb_features(struct sk_buff *skb);
-static inline int net_gso_ok(u32 features, int gso_type)
+static inline u64 net_gso_ok(u64 features, int gso_type)
{
- int feature = gso_type << NETIF_F_GSO_SHIFT;
+ u64 feature = (u64)gso_type << NETIF_F_GSO_SHIFT;
return (features & feature) == feature;
}
-static inline int skb_gso_ok(struct sk_buff *skb, u32 features)
+static inline int skb_gso_ok(struct sk_buff *skb, u64 features)
{
return net_gso_ok(features, skb_shinfo(skb)->gso_type) &&
(!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST));
}
-static inline int netif_needs_gso(struct sk_buff *skb, int features)
+static inline int netif_needs_gso(struct sk_buff *skb, u64 features)
{
return skb_is_gso(skb) && (!skb_gso_ok(skb, features) ||
unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
diff --git a/net/core/dev.c b/net/core/dev.c
index 379c993..73d96e5 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1840,7 +1840,7 @@ EXPORT_SYMBOL(skb_checksum_help);
* It may return NULL if the skb requires no segmentation. This is
* only possible when GSO is used for verifying header integrity.
*/
-struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features)
+struct sk_buff *skb_gso_segment(struct sk_buff *skb, u64 features)
{
struct sk_buff *segs = ERR_PTR(-EPROTONOSUPPORT);
struct packet_type *ptype;
@@ -1978,7 +1978,7 @@ static void dev_gso_skb_destructor(struct sk_buff *skb)
* This function segments the given skb and stores the list of segments
* in skb->next.
*/
-static int dev_gso_segment(struct sk_buff *skb, int features)
+static int dev_gso_segment(struct sk_buff *skb, u64 features)
{
struct sk_buff *segs;
@@ -2017,7 +2017,7 @@ static inline void skb_orphan_try(struct sk_buff *skb)
}
}
-static bool can_checksum_protocol(unsigned long features, __be16 protocol)
+static bool can_checksum_protocol(u64 features, __be16 protocol)
{
return ((features & NETIF_F_GEN_CSUM) ||
((features & NETIF_F_V4_CSUM) &&
@@ -2028,7 +2028,7 @@ static bool can_checksum_protocol(unsigned long features, __be16 protocol)
protocol == htons(ETH_P_FCOE)));
}
-static u32 harmonize_features(struct sk_buff *skb, __be16 protocol, u32 features)
+static u64 harmonize_features(struct sk_buff *skb, __be16 protocol, u64 features)
{
if (!can_checksum_protocol(features, protocol)) {
features &= ~NETIF_F_ALL_CSUM;
@@ -2040,10 +2040,10 @@ static u32 harmonize_features(struct sk_buff *skb, __be16 protocol, u32 features
return features;
}
-u32 netif_skb_features(struct sk_buff *skb)
+u64 netif_skb_features(struct sk_buff *skb)
{
__be16 protocol = skb->protocol;
- u32 features = skb->dev->features;
+ u64 features = skb->dev->features;
if (protocol == htons(ETH_P_8021Q)) {
struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
@@ -2072,7 +2072,7 @@ EXPORT_SYMBOL(netif_skb_features);
* support DMA from it.
*/
static inline int skb_needs_linearize(struct sk_buff *skb,
- int features)
+ u64 features)
{
return skb_is_nonlinear(skb) &&
((skb_has_frag_list(skb) &&
@@ -2088,7 +2088,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
int rc = NETDEV_TX_OK;
if (likely(!skb->next)) {
- u32 features;
+ u64 features;
/*
* If device doesn't need skb->dst, release it right now while
@@ -5185,7 +5185,7 @@ static void rollback_registered(struct net_device *dev)
list_del(&single);
}
-u32 netdev_fix_features(struct net_device *dev, u32 features)
+u64 netdev_fix_features(struct net_device *dev, u64 features)
{
/* Fix illegal checksum combinations */
if ((features & NETIF_F_HW_CSUM) &&
@@ -5248,7 +5248,7 @@ EXPORT_SYMBOL(netdev_fix_features);
int __netdev_update_features(struct net_device *dev)
{
- u32 features;
+ u64 features;
int err = 0;
ASSERT_RTNL();
@@ -5264,7 +5264,7 @@ int __netdev_update_features(struct net_device *dev)
if (dev->features == features)
return 0;
- netdev_info(dev, "Features changed: 0x%08x -> 0x%08x\n",
+ netdev_info(dev, "Features changed: 0x%016x -> 0x%016x\n",
dev->features, features);
if (dev->netdev_ops->ndo_set_features)
@@ -5272,7 +5272,7 @@ int __netdev_update_features(struct net_device *dev)
if (unlikely(err < 0)) {
netdev_err(dev,
- "set_features() failed (%d); wanted 0x%08x, left 0x%08x\n",
+ "set_features() failed (%d); wanted 0x%016x, left 0x%016x\n",
err, features, dev->features);
return -1;
}
@@ -6182,7 +6182,7 @@ static int dev_cpu_callback(struct notifier_block *nfb,
* @one to the master device with current feature set @all. Will not
* enable anything that is off in @mask. Returns the new feature set.
*/
-u32 netdev_increment_features(u32 all, u32 one, u32 mask)
+u64 netdev_increment_features(u64 all, u64 one, u64 mask)
{
/* If device needs checksumming, downgrade to it. */
if (all & NETIF_F_NO_CSUM && !(one & NETIF_F_NO_CSUM))
--
1.7.3.1
--
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