- 29 Jun, 2010 10 commits
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Changli Gao authored
don't clone skb when skb isn't shared When the tcf_action is TC_ACT_STOLEN, and the skb isn't shared, we don't need to clone a new skb. As the skb will be freed after this function returns, we can use it freely once we get a reference to it. Signed-off-by:
Changli Gao <xiaosuo@gmail.com> ---- include/net/sch_generic.h | 11 +++++++++-- net/sched/act_mirred.c | 6 +++--- 2 files changed, 12 insertions(+), 5 deletions(-) Signed-off-by:
Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
We can pass a gfp argument to tso_fragment() and avoid GFP_ATOMIC allocations sometimes. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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Eric Dumazet authored
Use u64_stats_sync infrastructure to implement 64bit rx stats. (tx stats are addressed later) Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Eric Dumazet authored
Use u64_stats_sync infrastructure to implement 64bit stats. Signed-off-by:
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Eric Dumazet authored
- Must disable preemption in case of 32bit UP in u64_stats_fetch_begin() and u64_stats_fetch_retry() - Add new u64_stats_fetch_begin_bh() and u64_stats_fetch_retry_bh() for network usage, disabling BH on 32bit UP only. Signed-off-by:
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Eric Dumazet authored
use this_cpu_ptr(p) instead of per_cpu_ptr(p, smp_processor_id()) Signed-off-by:
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Eric Dumazet authored
- Add a comment about interrupts: 6) If counter might be written by an interrupt, readers should block interrupts. - Fix a typo in sample of use. Signed-off-by:
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Ben Hutchings authored
Currently much of the code assumes that a specific window has been selected, while a few functions save and restore the window. This makes it impossible to introduce fine-grained locking. Make those assumptions explicit by introducing wrapper functions to set the window and read/write a register. Use these everywhere except vortex_interrupt(), vortex_start_xmit() and vortex_rx(). These set the window just once, or not at all in the case of vortex_rx() as it should always be called from vortex_interrupt(). Cache the current window in struct vortex_private to avoid unnecessary hardware writes. Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Tested-by: Arne Nordmark <nordmark@mech.kth.se> [against 2.6.32] Signed-off-by:
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Amerigo Wang authored
This patch adds dynamic LRO diable support for mlx4 net driver. It also fixes a bug of mlx4, which checks NETIF_F_LRO flag in rx path without rtnl lock. (I don't have mlx4 card, so only did compiling test. Anyone who wants to test this is more than welcome.) This is based on Neil's initial work too, and heavily modified based on Stanislaw's suggestions. Signed-off-by:
WANG Cong <amwang@redhat.com> Signed-off-by:
Neil Horman <nhorman@redhat.com> Acked-by:
Stanislaw Gruszka <sgruszka@redhat.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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Jon Mason authored
This patch adds dynamic LRO disable support for s2io net driver, enables LRO by default, increases the driver version number, and corrects the name of the LRO modparm. This is mostly Wang's patch based on Neil's initial work, heavily modified based on Ramkrishna's suggestions. This has been tested on a Neterion Xframe adapter and verified via adapter LRO statistics. Signed-off-by:
Jon Mason <jon.mason@exar.com> Signed-off-by:
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- 27 Jun, 2010 2 commits
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Florian Westphal authored
Allows use of ECN when syncookies are in effect by encoding ecn_ok into the syn-ack tcp timestamp. While at it, remove a uneeded #ifdef CONFIG_SYN_COOKIES. With CONFIG_SYN_COOKIES=nm want_cookie is ifdef'd to 0 and gcc removes the "if (0)". Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
As pointed out by Fernando Gont there is no need to encode rcv_wscale into the cookie. We did not use the restored rcv_wscale anyway; it is recomputed via tcp_select_initial_window(). Thus we can save 4 bits in the ts option space by removing rcv_wscale. In case window scaling was not supported, we set the (invalid) wscale value 0xf. Signed-off-by:
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- 26 Jun, 2010 28 commits
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Eric Dumazet authored
commit 9261e537 (ipv6: making ip and icmp statistics per/namespace) forgot to remove ipv6_statistics variable. commit bc417d99 (ipv6: remove stale MIB definitions) took care of icmpv6_statistics & icmpv6msg_statistics Signed-off-by:
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Eric Dumazet authored
In preparation for 64bit snmp counters for some mibs, add an 'align' parameter to snmp_mib_init(), instead of assuming mibs only contain 'unsigned long' fields. Callers can use __alignof__(type) to provide correct alignment. Signed-off-by:
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Eric Dumazet authored
Commit 6b10de38 (loopback: Implement 64bit stats on 32bit arches) introduced 64bit stats in loopback driver, using a private seqcount and private helpers. David suggested to introduce a generic infrastructure, added in (net: Introduce u64_stats_sync infrastructure) This patch reimplements loopback 64bit stats using the u64_stats_sync infrastructure. Signed-off-by:
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Eric Dumazet authored
Avoid two atomic ops in arp_solicit() Signed-off-by:
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Gerrit Renker authored
This patch is thanks to Andre Noll who reported the issue and helped testing. The Syn-RTT sampled during the initial handshake currently only works for the client sending the DCCP-Request. TFRC penalizes the absence of an RTT sample with a very slow initial speed (1 packet per second), which delays slow-start significantly, resulting in sluggish performance. This patch mirrors the "Syn RTT" principle by adding a timestamp also onto the DCCP-Response, producing an RTT sample when the (Data)Ack completing the handshake arrives. Also changed the documentation to 'TFRC' since Syn RTTs are also used by CCID-4. Signed-off-by:
Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by:
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Gerrit Renker authored
This removes an unused 'sk' argument from several option-inserting functions. Signed-off-by:
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Eric Benard authored
Commit 59d4289b converted fec to dev_pm_ops but didn't update the suspend/resume functions thus leading to the following warning : "initialization from incompatible pointer type" when CONFIG_PM is set. This patch also fixe a few indentation and style around CONFIG_PM area. Signed-off-by:
Eric Bénard <eric@eukrea.com> Cc: netdev@vger.kernel.org Cc: davem@davemloft.net Cc: amit.kucheria@canonical.com Cc: s.hauer@pengutronix.de Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
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Divy Le Ray authored
The driver requests FW 7.10 Bump up driver version. Signed-off-by:
Divy Le Ray <divy@chelsio.com> Signed-off-by:
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Divy Le Ray authored
Update FW to 7.10 Signed-off-by:
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Joe Perches authored
Add pr_fmt(fmt) KBUILD_MODNAME ": " fmt Remove "pktgen: " from formats Convert printks to pr_<level> Added func_enter() for debugging Moved version to end of string at module_init Coalesced long formats Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Hagen Paul Pfeifer authored
Gcc is currenlty not in the ability to optimize the switch statement in sk_run_filter() because of dense case labels. This patch replace the OR'd labels with ordered sequenced case labels. The sk_chk_filter() function is modified to patch/replace the original OPCODES in a ordered but equivalent form. gcc is now in the ability to transform the switch statement in sk_run_filter into a jump table of complexity O(1). Until this patch gcc generates a sequence of conditional branches (O(n) of 567 byte .text segment size (arch x86_64): 7ff: 8b 06 mov (%rsi),%eax 801: 66 83 f8 35 cmp $0x35,%ax 805: 0f 84 d0 02 00 00 je adb <sk_run_filter+0x31d> 80b: 0f 87 07 01 00 00 ja 918 <sk_run_filter+0x15a> 811: 66 83 f8 15 cmp $0x15,%ax 815: 0f 84 c5 02 00 00 je ae0 <sk_run_filter+0x322> 81b: 77 73 ja 890 <sk_run_filter+0xd2> 81d: 66 83 f8 04 cmp $0x4,%ax 821: 0f 84 17 02 00 00 je a3e <sk_run_filter+0x280> 827: 77 29 ja 852 <sk_run_filter+0x94> 829: 66 83 f8 01 cmp $0x1,%ax [...] With the modification the compiler translate the switch statement into the following jump table fragment: 7ff: 66 83 3e 2c cmpw $0x2c,(%rsi) 803: 0f 87 1f 02 00 00 ja a28 <sk_run_filter+0x26a> 809: 0f b7 06 movzwl (%rsi),%eax 80c: ff 24 c5 00 00 00 00 jmpq *0x0(,%rax,8) 813: 44 89 e3 mov %r12d,%ebx 816: e9 43 03 00 00 jmpq b5e <sk_run_filter+0x3a0> 81b: 41 89 dc mov %ebx,%r12d 81e: e9 3b 03 00 00 jmpq b5e <sk_run_filter+0x3a0> Furthermore, I reordered the instructions to reduce cache line misses by order the most common instruction to the start. Signed-off-by:
Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by:
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Ben Hutchings authored
Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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Ben Hutchings authored
Insertion of the Falcon hash is unreliable. Signed-off-by:
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Ben Hutchings authored
We will use this hash key for Toeplitz IPv4 hashing too. Signed-off-by:
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Ben Hutchings authored
The hash appears immediately before the packet data, not at the beginning of the buffer. This means we can easily use negative offsets from the start of packet data, so adjust the data and length at the top of __efx_rx_packet() instead of wherever we consume the hash. Signed-off-by:
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Vasanthy Kolluri authored
1) Update copyright 2) Fix hardware queue descriptor field size CQ_ENET_RQ_DESC_FCOE_SOF_BITS 3) Include rtnetlink.h instead of if_link.h 4) Selectively flush writes to interrupt mask register 5) Use pci_enable_device_mem 6) Remove unused variables and header files 7) Fix size mismatch between memory alloc and free operations of a variable 8) Check for non null arguments to vic_provinfo_alloc Signed-off-by:
Scott Feldman <scofeldm@cisco.com> Signed-off-by:
Vasanthy Kolluri <vkolluri@cisco.com> Signed-off-by:
Roopa Prabhu <roprabhu@cisco.com> Signed-off-by:
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Vasanthy Kolluri authored
Handle surprise hardware removals gracefully during devcmd issue and init, cleanup of queues. Signed-off-by:
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Vasanthy Kolluri authored
Hardware has the loopback capability to queue the packets transmitted from a device to the receive queue of the same device. enic now supports the loopback capability. Signed-off-by:
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Vasanthy Kolluri authored
Change the receive queue buffer allocations into blocks of 32 entries when ring size is less than 64, otherwise use 64 entries per block. Signed-off-by:
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Vasanthy Kolluri authored
Add new firmware devcmds - CMD_PROXY_BY_BDF, CMD_PACKET_FILTER_ALL, CMD_ENABLE_WAIT. Signed-off-by:
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Vasanthy Kolluri authored
Replace all printk routines with the (netdev|dev|pr)_<level> macros that provide verbose logs. Signed-off-by:
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Vasanthy Kolluri authored
Add wrapper routines that issue devcmds to firmware and ensure that a devcmd lock is held for each devcmd call. Signed-off-by:
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Vasanthy Kolluri authored
The port profile information for a dynamic enic device is set by the upper layers, that are oblivious to the device reset operation. We do not want a reset operation erase the network state of a dynamic enic device as there is no way to set up the port profile information again. Hence a lighter reset operation called hang reset is used. Hang reset, unlike soft reset does not reset the network state and resets the host side state only. Signed-off-by:
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Vasanthy Kolluri authored
The current ingress vlan rewrite mode setting lets the hardware strip off the tag control information of a packet received on native vlan. As a result, the priority bits are also lost. The fix is to change the ingress vlan rewrite mode setting such that the complete tag control information is retained for packets that belong to native vlan. Signed-off-by:
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Vasanthy Kolluri authored
enic now uses the GRO mechanism instead of LRO to pass skbs to upper layers. Signed-off-by:
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Michael Chan authored
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Michael Chan authored
This eliminates some of the duplicate code for the various devices that require the same basic kcq handling. Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
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Michael Chan authored
By doing more work in the common function cnic_get_kcqes(), and making full use of the kcq_info structure. Signed-off-by:
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