- 31 8月, 2010 7 次提交
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由 Gerrit Renker 提交于
This updates the use of larger initial windows, as originally specified in RFC 3390, to use the newer IW values specified in RFC 5681, section 3.1. The changes made in RFC 5681 are: a) the setting now is more clearly specified in units of segments (as the comments by John Heffner emphasized, this was not very clear in RFC 3390); b) for connections with 1095 < SMSS <= 2190 there is now a change: - RFC 3390 says that IW <= 4380, - RFC 5681 says that IW = 3 * SMSS <= 6570. Since RFC 3390 is older and "only" proposed standard, whereas the newer RFC 5681 is already draft standard, it seems preferable to use the newer IW variant. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gerrit Renker 提交于
This makes RTAX_RTO_MIN also available to CCID-3, replacing the compile-time RTO lower bound with a per-route tunable value. The original Kconfig option solved the problem that a very low RTT (in the order of HZ) can trigger too frequent and unnecessary reductions of the sending rate. This tunable does not affect the initial RTO value of 2 seconds specified in RFC 5348, section 4.2 and Appendix B. But like the hardcoded Kconfig value, it allows to adapt to network conditions. The same effect as the original Kconfig option of 100ms is now achieved by > ip route replace to unicast 192.168.0.0/24 rto_min 100j dev eth0 (assuming HZ=1000). Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gerrit Renker 提交于
Using a fixed RTO_MIN of 0.2 seconds was found to cause problems for CCID-2 over 802.11g: at least once per session there was a spurious timeout. It helped to then increase the the value of RTO_MIN over this link. Since the problem is the same as in TCP, this patch makes the solution from commit "05bb1fad" "[TCP]: Allow minimum RTO to be configurable via routing metrics." available to DCCP. This avoids reinventing the wheel, so that e.g. the following works in the expected way now also for CCID-2: > ip route change 10.0.0.2 rto_min 800 dev ath0 Luckily this useful rto_min function was recently moved to net/tcp.h, which simplifies sharing code originating from TCP. Documentation also updated (plus minor whitespace fixes). Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gerrit Renker 提交于
This patch consolidates initial-window code common to TCP and CCID-2: * TCP uses RFC 3390 in a packet-oriented manner (tcp_input.c) and * CCID-2 uses RFC 3390 in packet-oriented manner (RFC 4341). Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gerrit Renker 提交于
This removes the wrappers around the sk timer functions, since not much is gained from using them: the BUG_ON in start_rto_timer will never trigger since that function is called only if: * the RTO timer expires (rto_expire, and then timer_pending() is false); * in tx_packet_sent only if !timer_pending() (BUG_ON is redundant here); * previously in new_ack, after stopping the timer (timer_pending() false). Removing the wrappers also clears the way for eventually replacing the RTO timer with the icsk-retransmission-timer, as it is already part of the DCCP socket. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gerrit Renker 提交于
Since CCID-2 is de facto a mini implementation of TCP, it makes sense to share as much code as possible. Hence this patch aligns CCID-2 timestamping with TCP timestamping. This also halves the space consumption (on 64-bit systems). The necessary include file <net/tcp.h> is already included by way of net/dccp.h. Redundant includes have been removed. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jerry Chu 提交于
This patch provides a "user timeout" support as described in RFC793. The socket option is also needed for the the local half of RFC5482 "TCP User Timeout Option". TCP_USER_TIMEOUT is a TCP level socket option that takes an unsigned int, when > 0, to specify the maximum amount of time in ms that transmitted data may remain unacknowledged before TCP will forcefully close the corresponding connection and return ETIMEDOUT to the application. If 0 is given, TCP will continue to use the system default. Increasing the user timeouts allows a TCP connection to survive extended periods without end-to-end connectivity. Decreasing the user timeouts allows applications to "fail fast" if so desired. Otherwise it may take upto 20 minutes with the current system defaults in a normal WAN environment. The socket option can be made during any state of a TCP connection, but is only effective during the synchronized states of a connection (ESTABLISHED, FIN-WAIT-1, FIN-WAIT-2, CLOSE-WAIT, CLOSING, or LAST-ACK). Moreover, when used with the TCP keepalive (SO_KEEPALIVE) option, TCP_USER_TIMEOUT will overtake keepalive to determine when to close a connection due to keepalive failure. The option does not change in anyway when TCP retransmits a packet, nor when a keepalive probe will be sent. This option, like many others, will be inherited by an acceptor from its listener. Signed-off-by: NH.K. Jerry Chu <hkchu@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 8月, 2010 2 次提交
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由 Simon Horman 提交于
Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Rothwell 提交于
Fixes this build error: net/netfilter/ipvs/ip_vs_core.c: In function 'ip_vs_nat_icmp_v6': net/netfilter/ipvs/ip_vs_core.c:640: error: implicit declaration of function 'csum_ipv6_magic' Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 8月, 2010 6 次提交
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由 Julia Lawall 提交于
The nic_type field is compared to athr_l2c twice. The sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @expression@ expression E; @@ ( * E || ... || E | * E && ... && E ) // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Akinobu Mita 提交于
Detect size mismatch for netdrv_addr_t at build time rather than checking at module load time. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Ion Badulescu <ionut@badula.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Akinobu Mita 提交于
Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Ion Badulescu <ionut@badula.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Akinobu Mita 提交于
Replace open-coded loop with for_each_set_bit(). Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Akinobu Mita 提交于
Replace loops calling set_bit() and clear_bit() with bitmap_set() and bitmap_clear(). Unlike loops calling set_bit() and clear_bit(), bitmap_set() and bitmap_clear() are not atomic. But this is ok. Because the bitmap operations are protected by bitmap->lock except for initialization of the bitmap in mlx4_bitmap_init(). Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Akinobu Mita 提交于
The spinlock aun_queue_lock is initialized statically. It is unnecessary to initialize by spin_lock_init() at module load time. This is detected by the semantic patch. // <smpl> @def@ declarer name DEFINE_SPINLOCK; identifier spinlock; @@ DEFINE_SPINLOCK(spinlock); @@ identifier def.spinlock; @@ - spin_lock_init(&spinlock); // </smpl> Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Julia Lawall <julia@diku.dk> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 8月, 2010 1 次提交
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由 Tobias Klauser 提交于
Use net_device->stats for stats instead of private variable copies in struct slip. Use ndo_get_stat64 so the additions can be performed on a private destination buffer. Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NTobias Klauser <tklauser@distanz.ch> Acked-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 8月, 2010 12 次提交
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由 Eric Dumazet 提交于
bnx2x_trylock_hw_lock() returns a bool : true if succeeded to acquire the lock. false in case of error. -EINVAL is not an acceptable value, since its promoted to true. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Acked-by: NEilon Greenstein <eilong@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
compare_ether_header() can have a special implementation on 64 bit arches if CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is defined. __napi_gro_receive() and vlan_gro_common() can avoid a conditional branch to perform device match. On x86_64, __napi_gro_receive() has now 38 instructions instead of 53 As gcc-4.4.3 still choose to not inline it, add inline keyword to this performance critical function. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> CC: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Based upon a report by Stephen Rothwell. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sritej Velaga 提交于
Added PCI ID to board info. Signed-off-by: NSritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Anirban Chakraborty 提交于
If there is a FW hang when the driver loads, it can not determine the FW operational mode. Fix it by checking the FW state first before issuing any FW commands to determine its capabilities and thereby detecting driver operational mode. Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sony Chacko 提交于
In the original code, the error codes returned from some of the functions are not caught and sent up the caller chain. Fixed it here. Signed-off-by: NSony Chacko <sony.chacko@qlogic.com> Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Changli Gao 提交于
strlcpy() returns the total length of the string they tried to create, so we should not use its return value without any check. scnprintf() returns the number of characters written into @buf not including the trailing '\0', so use it instead here. Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Joe Perches 提交于
Change SCTP_DEBUG_PRINTK and SCTP_DEBUG_PRINTK_IPADDR to use do { print } while (0) guards. Add SCTP_DEBUG_PRINTK_CONT to fix errors in log when lines were continued. Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt Add a missing newline in "Failed bind hash alloc" Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Simon Horman 提交于
Switch from GFP_ATOMIC allocations to GFP_KERNEL ones in ip_vs_add_service() and ip_vs_new_dest(), as we hold a mutex and are allowed to sleep in this context. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Simon Horman 提交于
Also rename __ip_vs_securetcp_lock to ip_vs_securetcp_lock. Spinlock conversion was suggested by Eric Dumazet. Acked-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Simon Horman 提交于
Also rename __ip_vs_sched_lock to ip_vs_sched_lock. Acked-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Simon Horman 提交于
Cc: Xiaoyu Du <tingsrain@gmail.com> Signed-off-by: NJulian Anastasov <ja@ssi.bg> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 8月, 2010 12 次提交
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由 Rasesh Mody 提交于
This is the patch to fix the build break caused by multiple definitions of symbols between Brocade's FC/FCOE driver(BFA) and 10G Networking Driver(BNA). Changes are: 1. locally used functions are made static 2. unused functions are removed 3. using unique namespaces for the function names that must be globally visible Signed-off-by: NDebashis Dutt <ddutt@brocade.com> Signed-off-by: NRasesh Mody <rmody@brocade.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Denis Kirjanov 提交于
Free irq line on error path. Signed-off-by: NDenis Kirjanov <dkirjanov@kernel.org> Acked-by: NFlorian Fainelli <florian@openwrt.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Amerigo Wang 提交于
Remove "lro" parameter of s2io driver. Signed-off-by: NWANG Cong <amwang@redhat.com> Cc: jon.mason@exar.com Acked-by: NJon Mason <jon.mason@exar.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ajit Khaparde 提交于
Counters for packets received due to internal switching are already available. This change will start displaying them in ethtool -S Signed-off-by: NAjit Khaparde <ajitk@serverengines.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ajit Khaparde 提交于
The BE ASIC/firmware doesnot reserve and assign MAC address for VFs. This results in the VF interfaces being created with MAC Address 0. The code change proposed takes the MAC address of PF to generate a seed. MAC Address for VFs are assigned incrementally starting from the seed. These addresses are programmed in the ASIC by the PF and the VF driver queries for the MAC address during its probe. Signed-off-by: NAjit Khaparde <ajitk@serverengines.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 stephen hemminger 提交于
If bridge port is offline, don't call ethtool to query speed. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Breno Leitao 提交于
Currently qlge can deadlock when the interface is going down, and the mpi_port_cfg_work() is executing on another processor. It happens because unregister_netdev() holds the rtnl lock, and the mpi_port_cfg_work() also request this lock. Since unregiter_netdev() may wait mpi_port_cfg_work(), who also request the holding lock, it can cause an deadlock, displaying the following error: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. rmmod D 00000080c6c1d190 0 3993 2081 0x00008080 Call Trace: [c000000975f56ee0] [c0000000000152a0] .__switch_to+0x100/0x1d0 [c000000975f56f70] [c0000000005781b4] .schedule+0x3a4/0x8c0 [c000000975f570c0] [c000000000578e8c] .schedule_timeout+0x24c/0x350 [c000000975f571e0] [c000000000578a88] .wait_for_common+0x198/0x210 [c000000975f572c0] [c0000000000abbb4] .__cancel_work_timer+0x2c4/0x2e0 [c000000975f57400] [d0000000078e7a20] .ql_adapter_down+0x80/0x260 [qlge] [c000000975f574b0] [d0000000078e7d80] .qlge_close+0x70/0x130 [qlge] [c000000975f57540] [c000000000497ef8] .__dev_close+0x98/0xf0 [c000000975f575d0] [c000000000497f74] .dev_close+0x24/0x60 [c000000975f57650] [c000000000498080] .rollback_registered_many+0xd0/0x2b0 [c000000975f576f0] [c000000000498338] .rollback_registered+0x38/0x50 [c000000975f57780] [c0000000004983d8] .unregister_netdevice_queue+0x88/0xe0 [c000000975f57810] [c000000000498574] .unregister_netdev+0x24/0x40 [c000000975f57890] [d0000000078f6f38] .qlge_remove+0x3c/0x78 [qlge] [c000000975f57920] [c0000000002d9298] .pci_device_remove+0x48/0x90 [c000000975f579a0] [c000000000372850] .__device_release_driver+0xa0/0x130 [c000000975f57a30] [c000000000372a08] .driver_detach+0x128/0x150 [c000000975f57ad0] [c000000000371134] .bus_remove_driver+0xc4/0x1a0 [c000000975f57b70] [c00000000037357c] .driver_unregister+0x8c/0xd0 [c000000975f57c00] [c0000000002d968c] .pci_unregister_driver+0x5c/0x110 [c000000975f57ca0] [d0000000078f6ee4] .qlge_exit+0x1c/0x34 [qlge] Signed-off-by: NBreno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: NRon Mercer <ron.mercer@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stephen Hemminger 提交于
The carrier check is not called from work queue in current code. Signed-off-by: NStephen Hemminger <shemminger@vyatta.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Julia Lawall 提交于
__ip_vs_service_get and __ip_vs_svc_fwm_get increment a reference count, so that reference count should be decremented before leaving the function in an error case. A simplified version of the semantic match that finds this problem is: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E; identifier f1; iterator I; @@ x = __ip_vs_service_get(...); <... when != x when != true (x == NULL || ...) when != if (...) { <+...x...+> } when != I (...) { <+...x...+> } ( x == NULL | x == E | x->f1 ) ...> * return ...; // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NSimon Horman <horms@verge.net.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Julia Lawall 提交于
dev_alloc_skb allocates some memory, so that memory should be freed before leaving the function in an error case. Corrected some typos in a nearby comment as well. A simplified version of the semantic match that finds this problem is: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E; identifier f1; iterator I; @@ x = dev_alloc_skb(...); <... when != x when != true (x == NULL || ...) when != if (...) { <+...x...+> } when != I (...) { <+...x...+> } ( x == NULL | x == E | x->f1 ) ...> * return ...; // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Its important to store 'final' values in counters, not using them as temporary variables, or this might break some SNMP applications. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Acked-by: NDavid Dillow <dave@thedillows.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dan Carpenter 提交于
This return isn't reachable and it obscures the goto on the line before. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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