- 01 4月, 2015 2 次提交
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由 Ian Morris 提交于
The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x != NULL and sometimes as x. x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: NIan Morris <ipm@chirality.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ian Morris 提交于
The ipv6 code uses a mixture of coding styles. In some instances check for NULL pointer is done as x == NULL and sometimes as !x. !x is preferred according to checkpatch and this patch makes the code consistent by adopting the latter form. No changes detected by objdiff. Signed-off-by: NIan Morris <ipm@chirality.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 3月, 2015 1 次提交
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由 Alexey Kodanev 提交于
tcp_v6_fill_cb() will be called twice if socket's state changes from TCP_TIME_WAIT to TCP_LISTEN. That can result in control buffer data corruption because in the second tcp_v6_fill_cb() call it's not copying IP6CB(skb) anymore, but 'seq', 'end_seq', etc., so we can get weird and unpredictable results. Performance loss of up to 1200% has been observed in LTP/vxlan03 test. This can be fixed by copying inet6_skb_parm to the beginning of 'cb' only if xfrm6_policy_check() and tcp_v6_fill_cb() are going to be called again. Fixes: 2dc49d16 ("tcp6: don't move IP6CB before xfrm6_policy_check()") Signed-off-by: NAlexey Kodanev <alexey.kodanev@oracle.com> Acked-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 3月, 2015 4 次提交
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由 Eric Dumazet 提交于
ss should display ipv4 mapped request sockets like this : tcp SYN-RECV 0 0 ::ffff:192.168.0.1:8080 ::ffff:192.0.2.1:35261 and not like this : tcp SYN-RECV 0 0 192.168.0.1:8080 192.0.2.1:35261 We should init ireq->ireq_family based on listener sk_family, not the actual protocol carried by SYN packet. This means we can set ireq_family in inet_reqsk_alloc() Fixes: 3f66b083 ("inet: introduce ireq_family") Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
With request socks convergence, we no longer need different lookup methods. A request socket can use generic lookup function. Add const qualifier to 2nd tcp_v[46]_md5_lookup() parameter. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Since request and established sockets now have same base, there is no need to pass two pointers to tcp_v4_md5_hash_skb() or tcp_v6_md5_hash_skb() Also add a const qualifier to their struct tcp_md5sig_key argument. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
It is guaranteed that both tcp_v4_rcv() and tcp_v6_rcv() run from rcu read locked sections : ip_local_deliver_finish() and ip6_input_finish() both use rcu_read_lock() Also align tcp_v6_inbound_md5_hash() on tcp_v4_inbound_md5_hash() by returning a boolean. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 24 3月, 2015 2 次提交
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由 Michal Kubeček 提交于
On s390x, gcc 4.8 compiles this part of tcp_v6_early_demux() struct dst_entry *dst = sk->sk_rx_dst; if (dst) dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie); to code reading sk->sk_rx_dst twice, once for the test and once for the argument of ip6_dst_check() (dst_check() is inline). This allows ip6_dst_check() to be called with null first argument, causing a crash. Protect sk->sk_rx_dst access by READ_ONCE() both in IPv4 and IPv6 TCP early demux code. Fixes: 41063e9d ("ipv4: Early TCP socket demux.") Fixes: c7109986 ("ipv6: Early TCP socket demux") Signed-off-by: NMichal Kubecek <mkubecek@suse.cz> Acked-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
tcp_v6_err() can restrict lookups to ehash table, and not to listeners. Note this patch creates the infrastructure, but this means that ICMP messages for request sockets are ignored until complete conversion. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 3月, 2015 2 次提交
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由 Eric Dumazet 提交于
One of the major issue for TCP is the SYNACK rtx handling, done by inet_csk_reqsk_queue_prune(), fired by the keepalive timer of a TCP_LISTEN socket. This function runs for awful long times, with socket lock held, meaning that other cpus needing this lock have to spin for hundred of ms. SYNACK are sent in huge bursts, likely to cause severe drops anyway. This model was OK 15 years ago when memory was very tight. We now can afford to have a timer per request sock. Timer invocations no longer need to lock the listener, and can be run from all cpus in parallel. With following patch increasing somaxconn width to 32 bits, I tested a listener with more than 4 million active request sockets, and a steady SYNFLOOD of ~200,000 SYN per second. Host was sending ~830,000 SYNACK per second. This is ~100 times more what we could achieve before this patch. Later, we will get rid of the listener hash and use ehash instead. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
When request sock are put in ehash table, the whole notion of having a previous request to update dl_next is pointless. Also, following patch will get rid of big purge timer, so we want to delete a request sock without holding listener lock. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 3月, 2015 2 次提交
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由 Eric Dumazet 提交于
We can now use inet_hash() and __inet_hash() instead of private functions. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Intent is to converge IPv4 & IPv6 inet_hash functions to factorize code. IPv4 sockets initialize sk_rcv_saddr and sk_v6_daddr in this patch, thanks to new sk_daddr_set() and sk_rcv_saddr_set() helpers. __inet6_hash can now use sk_ehashfn() instead of a private inet6_sk_ehashfn() and will simply use __inet_hash() in a following patch. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 3月, 2015 1 次提交
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由 Eric Dumazet 提交于
When a request socket is created, we do not cache ip route dst entry, like for timewait sockets. Let's use sk_fullsock() helper. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 3月, 2015 1 次提交
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由 Eric Dumazet 提交于
Once request socks will be in ehash table, they will need to have a valid ir_iff field. This is currently true only for IPv6. This patch extends support for IPv4 as well. This means inet_diag_fill_req() can now properly use ir_iif, which is better for IPv6 link locals anyway, as request sockets and established sockets will propagate consistent netlink idiag_if. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 3月, 2015 2 次提交
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由 Eric Dumazet 提交于
Before inserting request socks into general hash table, fill their socket family. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
ireq->ir_num contains local port, use it. Also, get_openreq4() dumping listen_sk->refcnt makes litle sense. inet_diag_fill_req() can also use ireq->ir_num Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 1月, 2015 1 次提交
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由 Daniel Borkmann 提交于
This work adds the possibility to define a per route/destination congestion control algorithm. Generally, this opens up the possibility for a machine with different links to enforce specific congestion control algorithms with optimal strategies for each of them based on their network characteristics, even transparently for a single application listening on all links. For our specific use case, this additionally facilitates deployment of DCTCP, for example, applications can easily serve internal traffic/dsts in DCTCP and external one with CUBIC. Other scenarios would also allow for utilizing e.g. long living, low priority background flows for certain destinations/routes while still being able for normal traffic to utilize the default congestion control algorithm. We also thought about a per netns setting (where different defaults are possible), but given its actually a link specific property, we argue that a per route/destination setting is the most natural and flexible. The administrator can utilize this through ip-route(8) by appending "congctl [lock] <name>", where <name> denotes the name of a congestion control algorithm and the optional lock parameter allows to enforce the given algorithm so that applications in user space would not be allowed to overwrite that algorithm for that destination. The dst metric lookups are being done when a dst entry is already available in order to avoid a costly lookup and still before the algorithms are being initialized, thus overhead is very low when the feature is not being used. While the client side would need to drop the current reference on the module, on server side this can actually even be avoided as we just got a flat-copied socket clone. Joint work with Florian Westphal. Suggested-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NFlorian Westphal <fw@strlen.de> Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 12月, 2014 1 次提交
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由 Nicolas Dichtel 提交于
When xfrm6_policy_check() is used, _decode_session6() is called after some intermediate functions. This function uses IP6CB(), thus TCP_SKB_CB() must be prepared after the call of xfrm6_policy_check(). Before this patch, scenarii with IPv6 + TCP + IPsec Transport are broken. Fixes: 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Reported-by: NHuaibin Wang <huaibin.wang@6wind.com> Suggested-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 12月, 2014 1 次提交
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由 Eric Dumazet 提交于
When I cooked commit c3658e8d ("tcp: fix possible NULL dereference in tcp_vX_send_reset()") I missed other spots we could deref a NULL skb_dst(skb) Again, if a socket is provided, we do not need skb_dst() to get a pointer to network namespace : sock_net(sk) is good enough. Reported-by: NDann Frazier <dann.frazier@canonical.com> Bisected-by: NDann Frazier <dann.frazier@canonical.com> Tested-by: NDann Frazier <dann.frazier@canonical.com> Signed-off-by: NEric Dumazet <edumazet@google.com> Fixes: ca777eff ("tcp: remove dst refcount false sharing for prequeue mode") Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 11月, 2014 1 次提交
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由 Eric Dumazet 提交于
After commit ca777eff ("tcp: remove dst refcount false sharing for prequeue mode") we have to relax check against skb dst in tcp_v[46]_send_reset() if prequeue dropped the dst. If a socket is provided, a full lookup was done to find this socket, so the dst test can be skipped. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88191Reported-by: NJaša Bartelj <jasa.bartelj@gmail.com> Signed-off-by: NEric Dumazet <edumazet@google.com> Reported-by: NDaniel Borkmann <dborkman@redhat.com> Fixes: ca777eff ("tcp: remove dst refcount false sharing for prequeue mode") Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 11月, 2014 2 次提交
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由 Eric Dumazet 提交于
Alternative to RPS/RFS is to use hardware support for multiple queues. Then split a set of million of sockets into worker threads, each one using epoll() to manage events on its own socket pool. Ideally, we want one thread per RX/TX queue/cpu, but we have no way to know after accept() or connect() on which queue/cpu a socket is managed. We normally use one cpu per RX queue (IRQ smp_affinity being properly set), so remembering on socket structure which cpu delivered last packet is enough to solve the problem. After accept(), connect(), or even file descriptor passing around processes, applications can use : int cpu; socklen_t len = sizeof(cpu); getsockopt(fd, SOL_SOCKET, SO_INCOMING_CPU, &cpu, &len); And use this information to put the socket into the right silo for optimal performance, as all networking stack should run on the appropriate cpu, without need to send IPI (RPS/RFS). Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
sk_mark_napi_id() is used to record for a flow napi id of incoming packets for busypoll sake. We should do this only on established flows, not on listeners. This was 'working' by virtue of the socket cloning, but doing this on SYN packets in unecessary cache line dirtying. Even if we move sk_napi_id in the same cache line than sk_lock, we are working to make SYN processing lockless, so it is desirable to set sk_napi_id only for established flows. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 10月, 2014 1 次提交
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由 Sathya Perla 提交于
The commit "net: Save TX flow hash in sock and set in skbuf on xmit" introduced the inet_set_txhash() and ip6_set_txhash() routines to calculate and record flow hash(sk_txhash) in the socket structure. sk_txhash is used to set skb->hash which is used to spread flows across multiple TXQs. But, the above routines are invoked before the source port of the connection is created. Because of this all outgoing connections that just differ in the source port get hashed into the same TXQ. This patch fixes this problem for IPv4/6 by invoking the the above routines after the source port is available for the socket. Fixes: b73c3d0e("net: Save TX flow hash in sock and set in skbuf on xmit") Signed-off-by: NSathya Perla <sathya.perla@emulex.com> Acked-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 10月, 2014 1 次提交
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由 Eric Dumazet 提交于
Commit 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") added a regression for SO_BINDTODEVICE on IPv6. This is because we still use inet6_iif() which expects that IP6 control block is still at the beginning of skb->cb[] This patch adds tcp_v6_iif() helper and uses it where necessary. Because __inet6_lookup_skb() is used by TCP and DCCP, we add an iif parameter to it. Signed-off-by: NEric Dumazet <edumazet@google.com> Fixes: 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Acked-by: NCong Wang <cwang@twopensource.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 9月, 2014 2 次提交
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由 Eric Dumazet 提交于
TCP maintains lists of skb in write queue, and in receive queues (in order and out of order queues) Scanning these lists both in input and output path usually requires access to skb->next, TCP_SKB_CB(skb)->seq, and TCP_SKB_CB(skb)->end_seq These fields are currently in two different cache lines, meaning we waste lot of memory bandwidth when these queues are big and flows have either packet drops or packet reorders. We can move TCP_SKB_CB(skb)->header at the end of TCP_SKB_CB, because this header is not used in fast path. This allows TCP to search much faster in the skb lists. Even with regular flows, we save one cache line miss in fast path. Thanks to Christoph Paasch for noticing we need to cleanup skb->cb[] (IPCB/IP6CB) before entering IP stack in tx path, and that I forgot IPCB use in tcp_v4_hnd_req() and tcp_v4_save_options(). Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
ipv6_opt_accepted() assumes IP6CB(skb) holds the struct inet6_skb_parm that it needs. Lets not assume this, as TCP stack might use a different place. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 9月, 2014 1 次提交
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由 Dan Williams 提交于
Per commit "77873803 net_dma: mark broken" net_dma is no longer used and there is no plan to fix it. This is the mechanical removal of bits in CONFIG_NET_DMA ifdef guards. Reverting the remainder of the net_dma induced changes is deferred to subsequent patches. Marked for stable due to Roman's report of a memory leak in dma_pin_iovec_pages(): https://lkml.org/lkml/2014/9/3/177 Cc: Dave Jiang <dave.jiang@intel.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: David Whipple <whipple@securedatainnovations.ch> Cc: Alexander Duyck <alexander.h.duyck@intel.com> Cc: <stable@vger.kernel.org> Reported-by: NRoman Gushchin <klamm@yandex-team.ru> Acked-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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- 16 9月, 2014 1 次提交
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由 Eric Dumazet 提交于
Input path of TCP do not currently uses TCP_SKB_CB(skb)->tcp_flags, which is only used in output path. tcp_recvmsg(), looks at tcp_hdr(skb)->syn for every skb found in receive queue, and its unfortunate because this bit is located in a cache line right before the payload. We can simplify TCP by copying tcp flags into TCP_SKB_CB(skb)->tcp_flags. This patch does so, and avoids the cache line miss in tcp_recvmsg() Following patches will - allow a segment with FIN being coalesced in tcp_try_coalesce() - simplify tcp_collapse() by not copying the headers. Signed-off-by: NEric Dumazet <edumazet@google.com> Acked-by: NNeal Cardwell <ncardwell@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 9月, 2014 1 次提交
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由 Eric Dumazet 提交于
Alexander Duyck reported high false sharing on dst refcount in tcp stack when prequeue is used. prequeue is the mechanism used when a thread is blocked in recvmsg()/read() on a TCP socket, using a blocking model rather than select()/poll()/epoll() non blocking one. We already try to use RCU in input path as much as possible, but we were forced to take a refcount on the dst when skb escaped RCU protected region. When/if the user thread runs on different cpu, dst_release() will then touch dst refcount again. Commit 09316255 (tcp: force a dst refcount when prequeue packet) was an example of a race fix. It turns out the only remaining usage of skb->dst for a packet stored in a TCP socket prequeue is IP early demux. We can add a logic to detect when IP early demux is probably going to use skb->dst. Because we do an optimistic check rather than duplicate existing logic, we need to guard inet_sk_rx_dst_set() and inet6_sk_rx_dst_set() from using a NULL dst. Many thanks to Alexander for providing a nice bug report, git bisection, and reproducer. Tested using Alexander script on a 40Gb NIC, 8 RX queues. Hosts have 24 cores, 48 hyper threads. echo 0 >/proc/sys/net/ipv4/tcp_autocorking for i in `seq 0 47` do for j in `seq 0 2` do netperf -H $DEST -t TCP_STREAM -l 1000 \ -c -C -T $i,$i -P 0 -- \ -m 64 -s 64K -D & done done Before patch : ~6Mpps and ~95% cpu usage on receiver After patch : ~9Mpps and ~35% cpu usage on receiver. Signed-off-by: NEric Dumazet <edumazet@google.com> Reported-by: NAlexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 9月, 2014 1 次提交
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由 Eric Dumazet 提交于
TCP_SKB_CB(skb)->when has different meaning in output and input paths. In output path, it contains a timestamp. In input path, it contains an ISN, chosen by tcp_timewait_state_process() Lets add a different name to ease code comprehension. Note that 'when' field will disappear in following patch, as skb_mstamp already contains timestamp, the anonymous union will promptly disappear as well. Signed-off-by: NEric Dumazet <edumazet@google.com> Acked-by: NYuchung Cheng <ycheng@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 8月, 2014 1 次提交
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由 Neal Cardwell 提交于
Make sure we use the correct address-family-specific function for handling MTU reductions from within tcp_release_cb(). Previously AF_INET6 sockets were incorrectly always using the IPv6 code path when sometimes they were handling IPv4 traffic and thus had an IPv4 dst. Signed-off-by: NNeal Cardwell <ncardwell@google.com> Signed-off-by: NEric Dumazet <edumazet@google.com> Diagnosed-by: NWillem de Bruijn <willemb@google.com> Fixes: 563d34d0 ("tcp: dont drop MTU reduction indications") Reviewed-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 8月, 2014 1 次提交
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由 Dmitry Popov 提交于
Since a8afca03 (tcp: md5: protects md5sig_info with RCU) tcp_md5_do_lookup doesn't require socket lock, rcu_read_lock is enough. Therefore socket lock is no longer required for tcp_v{4,6}_inbound_md5_hash too, so we can move these calls (wrapped with rcu_read_{,un}lock) before bh_lock_sock: from tcp_v{4,6}_do_rcv to tcp_v{4,6}_rcv. Signed-off-by: NDmitry Popov <ixaphire@qrator.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 7月, 2014 2 次提交
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由 Tom Herbert 提交于
For a connected socket we can precompute the flow hash for setting in skb->hash on output. This is a performance advantage over calculating the skb->hash for every packet on the connection. The computation is done using the common hash algorithm to be consistent with computations done for packets of the connection in other states where thers is no socket (e.g. time-wait, syn-recv, syn-cookies). This patch adds sk_txhash to the sock structure. inet_set_txhash and ip6_set_txhash functions are added which are called from points in TCP and UDP where socket moves to established state. skb_set_hash_from_sk is a function which sets skb->hash from the sock txhash value. This is called in UDP and TCP transmit path when transmitting within the context of a socket. Tested: ran super_netperf with 200 TCP_RR streams over a vxlan interface (in this case skb_get_hash called on every TX packet to create a UDP source port). Before fix: 95.02% CPU utilization 154/256/505 90/95/99% latencies 1.13042e+06 tps Time in functions: 0.28% skb_flow_dissect 0.21% __skb_get_hash After fix: 94.95% CPU utilization 156/254/485 90/95/99% latencies 1.15447e+06 Neither __skb_get_hash nor skb_flow_dissect appear in perf Signed-off-by: NTom Herbert <therbert@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Neal Cardwell 提交于
Always store in snt_synack the time at which the server received the first client SYN and attempted to send the first SYNACK. Recent commit aa27fc50 ("tcp: tcp_v[46]_conn_request: fix snt_synack initialization") resolved an inconsistency between IPv4 and IPv6 in the initialization of snt_synack. This commit brings back the idea from 843f4a55 (tcp: use tcp_v4_send_synack on first SYN-ACK), which was going for the original behavior of snt_synack from the commit where it was added in 9ad7c049 ("tcp: RFC2988bis + taking RTT sample from 3WHS for the passive open side") in v3.1. In addition to being simpler (and probably a tiny bit faster), unconditionally storing the time of the first SYNACK attempt has been useful because it allows calculating a performance metric quantifying how long it took to establish a passive TCP connection. Signed-off-by: NNeal Cardwell <ncardwell@google.com> Signed-off-by: NYuchung Cheng <ycheng@google.com> Cc: Octavian Purdila <octavian.purdila@intel.com> Cc: Jerry Chu <hkchu@google.com> Acked-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 6月, 2014 5 次提交
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由 Octavian Purdila 提交于
Create tcp_conn_request and remove most of the code from tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Octavian Purdila 提交于
Add queue_add_hash member to tcp_request_sock_ops so that we can later unify tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Octavian Purdila 提交于
Add mss_clamp member to tcp_request_sock_ops so that we can later unify tcp_v4_conn_request and tcp_v6_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Octavian Purdila 提交于
Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Octavian Purdila 提交于
Create a new tcp_request_sock_ops method to unify the IPv4/IPv6 signature for tcp_v[46]_send_synack. This allows us to later unify tcp_v4_rtx_synack with tcp_v6_rtx_synack and tcp_v4_conn_request with tcp_v4_conn_request. Signed-off-by: NOctavian Purdila <octavian.purdila@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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