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Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Browse Source 
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [IPV6]: Added GSO support for TCPv6
  [NET]: Generalise TSO-specific bits from skb_setup_caps
  [IPV6]: Added GSO support for TCPv6
  [IPV6]: Remove redundant length check on input
  [NETFILTER]: SCTP conntrack: fix crash triggered by packet without chunks
  [TG3]: Update version and reldate
  [TG3]: Add TSO workaround using GSO
  [TG3]: Turn on hw fix for ASF problems
  [TG3]: Add rx BD workaround
  [TG3]: Add tg3_netif_stop() in vlan functions
  [TCP]: Reset gso_segs if packet is dodgy
This commit is contained in:
Linus Torvalds 2006-06-30 15:40:17 -07:00
commit e37a72de84
23 changed files with 236 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/s2io.c
View File

@ -3959,7 +3959,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
txdp->Control_2 = 0;
#ifdef NETIF_F_TSO
mss = skb_shinfo(skb)->gso_size;
if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV4) {
if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
txdp->Control_1 |= TXD_TCP_LSO_EN;
txdp->Control_1 |= TXD_TCP_LSO_MSS(mss);
}
@ -3979,7 +3979,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
}
frg_len = skb->len - skb->data_len;
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4) {
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP) {
int ufo_size;
ufo_size = skb_shinfo(skb)->gso_size;
@ -4008,7 +4008,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
txdp->Host_Control = (unsigned long) skb;
txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
txdp->Control_1 |= TXD_UFO_EN;
frg_cnt = skb_shinfo(skb)->nr_frags;
@ -4023,12 +4023,12 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
(sp->pdev, frag->page, frag->page_offset,
frag->size, PCI_DMA_TODEVICE);
txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
txdp->Control_1 |= TXD_UFO_EN;
}
txdp->Control_1 |= TXD_GATHER_CODE_LAST;
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
frg_cnt++; /* as Txd0 was used for inband header */
tx_fifo = mac_control->tx_FIFO_start[queue];
@ -4042,7 +4042,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
if (mss)
val64 |= TX_FIFO_SPECIAL_FUNC;
#endif
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
if (skb_shinfo(skb)->gso_type == SKB_GSO_UDP)
val64 |= TX_FIFO_SPECIAL_FUNC;
writeq(val64, &tx_fifo->List_Control);
@ -7019,6 +7019,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
dev->features |= NETIF_F_HIGHDMA;
#ifdef NETIF_F_TSO
dev->features |= NETIF_F_TSO;
#endif
#ifdef NETIF_F_TSO6
dev->features |= NETIF_F_TSO6;
#endif
if (sp->device_type & XFRAME_II_DEVICE) {
dev->features |= NETIF_F_UFO;

107
drivers/net/tg3.c
View File

@ -68,8 +68,8 @@
#define DRV_MODULE_NAME "tg3"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "3.60"
#define DRV_MODULE_RELDATE "June 17, 2006"
#define DRV_MODULE_VERSION "3.61"
#define DRV_MODULE_RELDATE "June 29, 2006"
#define TG3_DEF_MAC_MODE 0
#define TG3_DEF_RX_MODE 0
@ -3194,7 +3194,7 @@ static int tg3_vlan_rx(struct tg3 *tp, struct sk_buff *skb, u16 vlan_tag)
*/
static int tg3_rx(struct tg3 *tp, int budget)
{
u32 work_mask;
u32 work_mask, rx_std_posted = 0;
u32 sw_idx = tp->rx_rcb_ptr;
u16 hw_idx;
int received;
@ -3221,6 +3221,7 @@ static int tg3_rx(struct tg3 *tp, int budget)
mapping);
skb = tp->rx_std_buffers[desc_idx].skb;
post_ptr = &tp->rx_std_ptr;
rx_std_posted++;
} else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
dma_addr = pci_unmap_addr(&tp->rx_jumbo_buffers[desc_idx],
mapping);
@ -3308,6 +3309,15 @@ static int tg3_rx(struct tg3 *tp, int budget)
next_pkt:
(*post_ptr)++;
if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
u32 idx = *post_ptr % TG3_RX_RING_SIZE;
tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX +
TG3_64BIT_REG_LOW, idx);
work_mask &= ~RXD_OPAQUE_RING_STD;
rx_std_posted = 0;
}
next_pkt_nopost:
sw_idx++;
sw_idx %= TG3_RX_RCB_RING_SIZE(tp);
@ -3869,6 +3879,40 @@ out_unlock:
return NETDEV_TX_OK;
}
#if TG3_TSO_SUPPORT != 0
static int tg3_start_xmit_dma_bug(struct sk_buff *, struct net_device *);
/* Use GSO to workaround a rare TSO bug that may be triggered when the
* TSO header is greater than 80 bytes.
*/
static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
{
struct sk_buff *segs, *nskb;
/* Estimate the number of fragments in the worst case */
if (unlikely(TX_BUFFS_AVAIL(tp) <= (skb_shinfo(skb)->gso_segs * 3))) {
netif_stop_queue(tp->dev);
return NETDEV_TX_BUSY;
}
segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
if (unlikely(IS_ERR(segs)))
goto tg3_tso_bug_end;
do {
nskb = segs;
segs = segs->next;
nskb->next = NULL;
tg3_start_xmit_dma_bug(nskb, tp->dev);
} while (segs);
tg3_tso_bug_end:
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
#endif
/* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
* support TG3_FLG2_HW_TSO_1 or firmware TSO only.
*/
@ -3905,7 +3949,7 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
mss = 0;
if (skb->len > (tp->dev->mtu + ETH_HLEN) &&
(mss = skb_shinfo(skb)->gso_size) != 0) {
int tcp_opt_len, ip_tcp_len;
int tcp_opt_len, ip_tcp_len, hdr_len;
if (skb_header_cloned(skb) &&
pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
@ -3916,11 +3960,16 @@ static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
tcp_opt_len = ((skb->h.th->doff - 5) * 4);
ip_tcp_len = (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
hdr_len = ip_tcp_len + tcp_opt_len;
if (unlikely((ETH_HLEN + hdr_len) > 80) &&
(tp->tg3_flags2 & TG3_FLG2_HW_TSO_1_BUG))
return (tg3_tso_bug(tp, skb));
base_flags |= (TXD_FLAG_CPU_PRE_DMA |
TXD_FLAG_CPU_POST_DMA);
skb->nh.iph->check = 0;
skb->nh.iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
skb->nh.iph->tot_len = htons(mss + hdr_len);
if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
skb->h.th->check = 0;
base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
@ -5980,7 +6029,13 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
}
/* Setup replenish threshold. */
tw32(RCVBDI_STD_THRESH, tp->rx_pending / 8);
val = tp->rx_pending / 8;
if (val == 0)
val = 1;
else if (val > tp->rx_std_max_post)
val = tp->rx_std_max_post;
tw32(RCVBDI_STD_THRESH, val);
/* Initialize TG3_BDINFO's at:
* RCVDBDI_STD_BD: standard eth size rx ring
@ -6140,8 +6195,12 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
#endif
/* Receive/send statistics. */
if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
val = tr32(RCVLPC_STATS_ENABLE);
val &= ~RCVLPC_STATSENAB_DACK_FIX;
tw32(RCVLPC_STATS_ENABLE, val);
} else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
val = tr32(RCVLPC_STATS_ENABLE);
val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
tw32(RCVLPC_STATS_ENABLE, val);
@ -8737,6 +8796,9 @@ static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
struct tg3 *tp = netdev_priv(dev);
if (netif_running(dev))
tg3_netif_stop(tp);
tg3_full_lock(tp, 0);
tp->vlgrp = grp;
@ -8745,16 +8807,25 @@ static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
__tg3_set_rx_mode(dev);
tg3_full_unlock(tp);
if (netif_running(dev))
tg3_netif_start(tp);
}
static void tg3_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
{
struct tg3 *tp = netdev_priv(dev);
if (netif_running(dev))
tg3_netif_stop(tp);
tg3_full_lock(tp, 0);
if (tp->vlgrp)
tp->vlgrp->vlan_devices[vid] = NULL;
tg3_full_unlock(tp);
if (netif_running(dev))
tg3_netif_start(tp);
}
#endif
@ -10159,8 +10230,14 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787) {
tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
} else
tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1;
} else {
tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 |
TG3_FLG2_HW_TSO_1_BUG;
if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
ASIC_REV_5750 &&
tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_1_BUG;
}
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705 &&
@ -10532,6 +10609,16 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
(tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0)
tp->rx_offset = 0;
tp->rx_std_max_post = TG3_RX_RING_SIZE;
/* Increment the rx prod index on the rx std ring by at most
* 8 for these chips to workaround hw errata.
*/
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
tp->rx_std_max_post = 8;
/* By default, disable wake-on-lan. User can change this
* using ETHTOOL_SWOL.
*/

5
drivers/net/tg3.h
View File

@ -125,6 +125,7 @@
#define CHIPREV_ID_5750_A0 0x4000
#define CHIPREV_ID_5750_A1 0x4001
#define CHIPREV_ID_5750_A3 0x4003
#define CHIPREV_ID_5750_C2 0x4202
#define CHIPREV_ID_5752_A0_HW 0x5000
#define CHIPREV_ID_5752_A0 0x6000
#define CHIPREV_ID_5752_A1 0x6001
@ -760,6 +761,7 @@
#define RCVLPC_STATSCTRL_ENABLE 0x00000001
#define RCVLPC_STATSCTRL_FASTUPD 0x00000002
#define RCVLPC_STATS_ENABLE 0x00002018
#define RCVLPC_STATSENAB_DACK_FIX 0x00040000
#define RCVLPC_STATSENAB_LNGBRST_RFIX 0x00400000
#define RCVLPC_STATS_INCMASK 0x0000201c
/* 0x2020 --> 0x2100 unused */
@ -2137,6 +2139,7 @@ struct tg3 {
struct tg3_rx_buffer_desc *rx_std;
struct ring_info *rx_std_buffers;
dma_addr_t rx_std_mapping;
u32 rx_std_max_post;
struct tg3_rx_buffer_desc *rx_jumbo;
struct ring_info *rx_jumbo_buffers;
@ -2191,7 +2194,7 @@ struct tg3 {
#define TG3_FLAG_INIT_COMPLETE 0x80000000
u32 tg3_flags2;
#define TG3_FLG2_RESTART_TIMER 0x00000001
/* 0x00000002 available */
#define TG3_FLG2_HW_TSO_1_BUG 0x00000002
#define TG3_FLG2_NO_ETH_WIRE_SPEED 0x00000004
#define TG3_FLG2_IS_5788 0x00000008
#define TG3_FLG2_MAX_RXPEND_64 0x00000010

17
include/linux/netdevice.h
View File

@ -313,10 +313,12 @@ struct net_device
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
#define NETIF_F_GSO_MASK 0xffff0000
#define NETIF_F_TSO (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT)
#define NETIF_F_UFO (SKB_GSO_UDPV4 << NETIF_F_GSO_SHIFT)
#define NETIF_F_UFO (SKB_GSO_UDP << NETIF_F_GSO_SHIFT)
#define NETIF_F_GSO_ROBUST (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)
#define NETIF_F_TSO_ECN (SKB_GSO_TCPV4_ECN << NETIF_F_GSO_SHIFT)
#define NETIF_F_TSO_ECN (SKB_GSO_TCP_ECN << NETIF_F_GSO_SHIFT)
#define NETIF_F_TSO6 (SKB_GSO_TCPV6 << NETIF_F_GSO_SHIFT)
#define NETIF_F_GEN_CSUM (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM)
#define NETIF_F_ALL_CSUM (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM)
@ -991,11 +993,16 @@ extern void dev_seq_stop(struct seq_file *seq, void *v);
extern void linkwatch_run_queue(void);
static inline int net_gso_ok(int features, int gso_type)
{
int feature = gso_type << NETIF_F_GSO_SHIFT;
return (features & feature) == feature;
}
static inline int skb_gso_ok(struct sk_buff *skb, int features)
{
int feature = skb_shinfo(skb)->gso_size ?
skb_shinfo(skb)->gso_type << NETIF_F_GSO_SHIFT : 0;
return (features & feature) == feature;
return net_gso_ok(features, skb_shinfo(skb)->gso_size ?
skb_shinfo(skb)->gso_type : 0);
}
static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)

6
include/linux/skbuff.h
View File

@ -171,13 +171,15 @@ enum {
enum {
SKB_GSO_TCPV4 = 1 << 0,
SKB_GSO_UDPV4 = 1 << 1,
SKB_GSO_UDP = 1 << 1,
/* This indicates the skb is from an untrusted source. */
SKB_GSO_DODGY = 1 << 2,
/* This indicates the tcp segment has CWR set. */
SKB_GSO_TCPV4_ECN = 1 << 3,
SKB_GSO_TCP_ECN = 1 << 3,
SKB_GSO_TCPV6 = 1 << 4,
};
/**

2
include/net/ip6_route.h
View File

@ -146,7 +146,7 @@ static inline void ip6_dst_store(struct sock *sk, struct dst_entry *dst,
struct rt6_info *rt = (struct rt6_info *) dst;
write_lock(&sk->sk_dst_lock);
__sk_dst_set(sk, dst);
sk_setup_caps(sk, dst);
np->daddr_cache = daddr;
np->dst_cookie = rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0;
write_unlock(&sk->sk_dst_lock);

6
include/net/protocol.h
View File

@ -50,11 +50,17 @@ struct inet6_protocol
struct inet6_skb_parm *opt,
int type, int code, int offset,
__u32 info);
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
int features);
unsigned int flags; /* INET6_PROTO_xxx */
};
#define INET6_PROTO_NOPOLICY 0x1
#define INET6_PROTO_FINAL 0x2
/* This should be set for any extension header which is compatible with GSO. */
#define INET6_PROTO_GSO_EXTHDR 0x4
#endif
/* This is used to register socket interfaces for IP protocols. */

13
include/net/sock.h
View File

@ -140,6 +140,7 @@ struct sock_common {
* @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, %SO_OOBINLINE settings
* @sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets
* @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO)
* @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4)
* @sk_lingertime: %SO_LINGER l_linger setting
* @sk_backlog: always used with the per-socket spinlock held
* @sk_callback_lock: used with the callbacks in the end of this struct
@ -211,6 +212,7 @@ struct sock {
gfp_t sk_allocation;
int sk_sndbuf;
int sk_route_caps;
int sk_gso_type;
int sk_rcvlowat;
unsigned long sk_flags;
unsigned long sk_lingertime;
@ -1025,15 +1027,20 @@ extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
extern struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);
static inline int sk_can_gso(const struct sock *sk)
{
return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type);
}
static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
{
__sk_dst_set(sk, dst);
sk->sk_route_caps = dst->dev->features;
if (sk->sk_route_caps & NETIF_F_GSO)
sk->sk_route_caps |= NETIF_F_TSO;
if (sk->sk_route_caps & NETIF_F_TSO) {
sk->sk_route_caps |= NETIF_F_GSO_MASK;
if (sk_can_gso(sk)) {
if (dst->header_len)
sk->sk_route_caps &= ~NETIF_F_TSO;
sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
else
sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
}

2
include/net/tcp.h
View File

@ -751,7 +751,7 @@ static inline int tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight)
if (in_flight >= tp->snd_cwnd)
return 1;
if (!(sk->sk_route_caps & NETIF_F_TSO))
if (!sk_can_gso(sk))
return 0;
left = tp->snd_cwnd - in_flight;

4
include/net/tcp_ecn.h
View File

@ -55,9 +55,7 @@ static inline void TCP_ECN_send(struct sock *sk, struct tcp_sock *tp,
if (tp->ecn_flags&TCP_ECN_QUEUE_CWR) {
tp->ecn_flags &= ~TCP_ECN_QUEUE_CWR;
skb->h.th->cwr = 1;
if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)
skb_shinfo(skb)->gso_type |=
SKB_GSO_TCPV4_ECN;
skb_shinfo(skb)->gso_type |= SKB_GSO_TCP_ECN;
}
} else {
/* ACK or retransmitted segment: clear ECT|CE */

4
net/ipv4/ip_output.c
View File

@ -743,7 +743,7 @@ static inline int ip_ufo_append_data(struct sock *sk,
if (!err) {
/* specify the length of each IP datagram fragment*/
skb_shinfo(skb)->gso_size = mtu - fragheaderlen;
skb_shinfo(skb)->gso_type = SKB_GSO_UDPV4;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
__skb_queue_tail(&sk->sk_write_queue, skb);
return 0;
@ -1088,7 +1088,7 @@ ssize_t ip_append_page(struct sock *sk, struct page *page,
if ((sk->sk_protocol == IPPROTO_UDP) &&
(rt->u.dst.dev->features & NETIF_F_UFO)) {
skb_shinfo(skb)->gso_size = mtu - fragheaderlen;
skb_shinfo(skb)->gso_type = SKB_GSO_UDPV4;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
}

2
net/ipv4/netfilter/ip_conntrack_proto_sctp.c
View File

@ -254,7 +254,7 @@ static int do_basic_checks(struct ip_conntrack *conntrack,
}
DEBUGP("Basic checks passed\n");
return 0;
return count == 0;
}
static int new_state(enum ip_conntrack_dir dir,

17
net/ipv4/tcp.c
View File

@ -642,7 +642,7 @@ static inline int select_size(struct sock *sk, struct tcp_sock *tp)
int tmp = tp->mss_cache;
if (sk->sk_route_caps & NETIF_F_SG) {
if (sk->sk_route_caps & NETIF_F_TSO)
if (sk_can_gso(sk))
tmp = 0;
else {
int pgbreak = SKB_MAX_HEAD(MAX_TCP_HEADER);
@ -2165,13 +2165,19 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
if (!pskb_may_pull(skb, thlen))
goto out;
segs = NULL;
if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST))
goto out;
oldlen = (u16)~skb->len;
__skb_pull(skb, thlen);
if (skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST)) {
/* Packet is from an untrusted source, reset gso_segs. */
int mss = skb_shinfo(skb)->gso_size;
skb_shinfo(skb)->gso_segs = (skb->len + mss - 1) / mss;
segs = NULL;
goto out;
}
segs = skb_segment(skb, features);
if (IS_ERR(segs))
goto out;
@ -2208,6 +2214,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
out:
return segs;
}
EXPORT_SYMBOL(tcp_tso_segment);
extern void __skb_cb_too_small_for_tcp(int, int);
extern struct tcp_congestion_ops tcp_reno;

2
net/ipv4/tcp_ipv4.c
View File

@ -241,6 +241,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
goto failure;
/* OK, now commit destination to socket. */
sk->sk_gso_type = SKB_GSO_TCPV4;
sk_setup_caps(sk, &rt->u.dst);
if (!tp->write_seq)
@ -883,6 +884,7 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
if (!newsk)
goto exit;
newsk->sk_gso_type = SKB_GSO_TCPV4;
sk_setup_caps(newsk, dst);
newtp = tcp_sk(newsk);

9
net/ipv4/tcp_output.c
View File

@ -510,8 +510,7 @@ static void tcp_queue_skb(struct sock *sk, struct sk_buff *skb)
static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned int mss_now)
{
if (skb->len <= mss_now ||
!(sk->sk_route_caps & NETIF_F_TSO)) {
if (skb->len <= mss_now || !sk_can_gso(sk)) {
/* Avoid the costly divide in the normal
* non-TSO case.
*/
@ -525,7 +524,7 @@ static void tcp_set_skb_tso_segs(struct sock *sk, struct sk_buff *skb, unsigned
factor /= mss_now;
skb_shinfo(skb)->gso_segs = factor;
skb_shinfo(skb)->gso_size = mss_now;
skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
skb_shinfo(skb)->gso_type = sk->sk_gso_type;
}
}
@ -824,9 +823,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
mss_now = tp->mss_cache;
if (large_allowed &&
(sk->sk_route_caps & NETIF_F_TSO) &&
!tp->urg_mode)
if (large_allowed && sk_can_gso(sk) && !tp->urg_mode)
doing_tso = 1;
if (dst) {

2
net/ipv6/af_inet6.c
View File

@ -659,8 +659,6 @@ int inet6_sk_rebuild_header(struct sock *sk)
}
ip6_dst_store(sk, dst, NULL);
sk->sk_route_caps = dst->dev->features &
~(NETIF_F_IP_CSUM | NETIF_F_TSO);
}
return 0;

4
net/ipv6/exthdrs.c
View File

@ -179,7 +179,7 @@ static int ipv6_destopt_rcv(struct sk_buff **skbp)
static struct inet6_protocol destopt_protocol = {
.handler = ipv6_destopt_rcv,
.flags = INET6_PROTO_NOPOLICY,
.flags = INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
};
void __init ipv6_destopt_init(void)
@ -340,7 +340,7 @@ looped_back:
static struct inet6_protocol rthdr_protocol = {
.handler = ipv6_rthdr_rcv,
.flags = INET6_PROTO_NOPOLICY,
.flags = INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,
};
void __init ipv6_rthdr_init(void)

2
net/ipv6/inet6_connection_sock.c
View File

@ -186,8 +186,6 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
}
ip6_dst_store(sk, dst, NULL);
sk->sk_route_caps = dst->dev->features &
~(NETIF_F_IP_CSUM | NETIF_F_TSO);
}
skb->dst = dst_clone(dst);

7
net/ipv6/ip6_input.c
View File

@ -84,14 +84,9 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
*/
IP6CB(skb)->iif = skb->dst ? ((struct rt6_info *)skb->dst)->rt6i_idev->dev->ifindex : dev->ifindex;
if (skb->len < sizeof(struct ipv6hdr))
if (unlikely(!pskb_may_pull(skb, sizeof(*hdr))))
goto err;
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) {
IP6_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
goto drop;
}
hdr = skb->nh.ipv6h;
if (hdr->version != 6)

4
net/ipv6/ip6_output.c
View File

@ -229,7 +229,7 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl,
skb->priority = sk->sk_priority;
mtu = dst_mtu(dst);
if ((skb->len <= mtu) || ipfragok) {
if ((skb->len <= mtu) || ipfragok || skb_shinfo(skb)->gso_size) {
IP6_INC_STATS(IPSTATS_MIB_OUTREQUESTS);
return NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, dst->dev,
dst_output);
@ -834,7 +834,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
/* specify the length of each IP datagram fragment*/
skb_shinfo(skb)->gso_size = mtu - fragheaderlen -
sizeof(struct frag_hdr);
skb_shinfo(skb)->gso_type = SKB_GSO_UDPV4;
skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
ipv6_select_ident(skb, &fhdr);
skb_shinfo(skb)->ip6_frag_id = fhdr.identification;
__skb_queue_tail(&sk->sk_write_queue, skb);

62
net/ipv6/ipv6_sockglue.c
View File

@ -57,9 +57,71 @@
DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics) __read_mostly;
static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
{
struct sk_buff *segs = ERR_PTR(-EINVAL);
struct ipv6hdr *ipv6h;
struct inet6_protocol *ops;
int proto;
if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
goto out;
ipv6h = skb->nh.ipv6h;
proto = ipv6h->nexthdr;
__skb_pull(skb, sizeof(*ipv6h));
rcu_read_lock();
for (;;) {
struct ipv6_opt_hdr *opth;
int len;
if (proto != NEXTHDR_HOP) {
ops = rcu_dereference(inet6_protos[proto]);
if (unlikely(!ops))
goto unlock;
if (!(ops->flags & INET6_PROTO_GSO_EXTHDR))
break;
}
if (unlikely(!pskb_may_pull(skb, 8)))
goto unlock;
opth = (void *)skb->data;
len = opth->hdrlen * 8 + 8;
if (unlikely(!pskb_may_pull(skb, len)))
goto unlock;
proto = opth->nexthdr;
__skb_pull(skb, len);
}
skb->h.raw = skb->data;
if (likely(ops->gso_segment))
segs = ops->gso_segment(skb, features);
unlock:
rcu_read_unlock();
if (unlikely(IS_ERR(segs)))
goto out;
for (skb = segs; skb; skb = skb->next) {
ipv6h = skb->nh.ipv6h;
ipv6h->payload_len = htons(skb->len - skb->mac_len);
}
out:
return segs;
}
static struct packet_type ipv6_packet_type = {
.type = __constant_htons(ETH_P_IPV6),
.func = ipv6_rcv,
.gso_segment = ipv6_gso_segment,
};
struct ip6_ra_chain *ip6_ra_chain;

7
net/ipv6/tcp_ipv6.c
View File

@ -269,9 +269,8 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
ipv6_addr_copy(&np->saddr, saddr);
inet->rcv_saddr = LOOPBACK4_IPV6;
sk->sk_gso_type = SKB_GSO_TCPV6;
ip6_dst_store(sk, dst, NULL);
sk->sk_route_caps = dst->dev->features &
~(NETIF_F_IP_CSUM | NETIF_F_TSO);
icsk->icsk_ext_hdr_len = 0;
if (np->opt)
@ -929,9 +928,8 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
* comment in that function for the gory details. -acme
*/
sk->sk_gso_type = SKB_GSO_TCPV6;
ip6_dst_store(newsk, dst, NULL);
newsk->sk_route_caps = dst->dev->features &
~(NETIF_F_IP_CSUM | NETIF_F_TSO);
newtcp6sk = (struct tcp6_sock *)newsk;
inet_sk(newsk)->pinet6 = &newtcp6sk->inet6;
@ -1605,6 +1603,7 @@ struct proto tcpv6_prot = {
static struct inet6_protocol tcpv6_protocol = {
.handler = tcp_v6_rcv,
.err_handler = tcp_v6_err,
.gso_segment = tcp_tso_segment,
.flags = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,
};

2
net/netfilter/nf_conntrack_proto_sctp.c
View File

@ -261,7 +261,7 @@ static int do_basic_checks(struct nf_conn *conntrack,
}
DEBUGP("Basic checks passed\n");
return 0;
return count == 0;
}
static int new_state(enum ip_conntrack_dir dir,