- 17 Oct, 2013 6 commits
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Gao feng authored
Create proc entries under the ipt_CLUSTERIP directory of proper net namespace. Signed-off-by:
Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Gao feng authored
Inorder to find clusterip_config in net namespace. Signed-off-by:
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Gao feng authored
this lock is used for protecting clusterip_configs of per net namespace, it should be per net namespace too. Signed-off-by:
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Gao feng authored
clusterip_configs should be per net namespace, so operate cluster in one net namespace won't affect other net namespace. right now, only allow to operate the clusterip_configs of init net namespace. Signed-off-by:
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Gao feng authored
Create /proc/net/ipt_CLUSTERIP directory for per net namespace. Right now,only allow to create entries under the ipt_CLUSTERIP in init net namespace. Signed-off-by:
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Eric Dumazet authored
TCP listener refactoring, part 7 : Use sock_gen_put() instead of xt_socket_put_sk() for future SYN_RECV support. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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- 15 Oct, 2013 3 commits
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Alexander Frolkin authored
Improve the SH fallback realserver selection strategy. With sh and sh-fallback, if a realserver is down, this attempts to distribute the traffic that would have gone to that server evenly among the remaining servers. Signed-off-by:
Alexander Frolkin <avf@eldamar.org.uk> Acked-by:
Julian Anastasov <ja@ssi.bg> Signed-off-by:
Simon Horman <horms@verge.net.au>
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Julian Anastasov authored
commit 578bc3ef ("ipvs: reorganize dest trash") added rcu_barrier() on cleanup to wait dest users and schedulers like LBLC and LBLCR to put their last dest reference. Using rcu_barrier with many namespaces is problematic. Trying to fix it by freeing dest with kfree_rcu is not a solution, RCU callbacks can run in parallel and execution order is random. Fix it by creating new function ip_vs_dest_put_and_free() which is heavier than ip_vs_dest_put(). We will use it just for schedulers like LBLC, LBLCR that can delay their dest release. By default, dests reference is above 0 if they are present in service and it is 0 when deleted but still in trash list. Change the dest trash code to use ip_vs_dest_put_and_free(), so that refcnt -1 can be used for freeing. As result, such checks remain in slow path and the rcu_barrier() from netns cleanup can be removed. Signed-off-by:
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Julian Anastasov authored
It was wrong (bigger) but problem is harmless. Signed-off-by:
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- 10 Oct, 2013 20 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-nextDavid S. Miller authored
Jeff Kirsher says: ==================== This series contains updates to i40e only. Alex provides the majority of the patches against i40e, where he does cleanup of the Tx and RX queues and to align the code with the known good Tx/Rx queue code in the ixgbe driver. Anjali provides an i40e patch to update link events to not print to the log until the device is administratively up. Catherine provides a patch to update the driver version. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
In commit 634fb979 ("inet: includes a sock_common in request_sock") I forgot that the two ports in sock_common do not have same byte order : skc_dport is __be16 (network order), but skc_num is __u16 (host order) So sparse complains because ir_loc_port (mapped into skc_num) is considered as __u16 while it should be __be16 Let rename ir_loc_port to ireq->ir_num (analogy with inet->inet_num), and perform appropriate htons/ntohs conversions. Signed-off-by:
Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
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Catherine Sullivan authored
Update the version number of the driver. Signed-off-by:
Catherine Sullivan <catherine.sullivan@intel.com> Signed-off-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by:
Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This change brings support for 64 bit netstats to the driver. Previously the stats were 64 bit but highly racy due to the fact that 64 bit transactions are not atomic on 32 bit systems. This change makes is so that the 64 bit byte and packet stats are reliable on all architectures. Signed-off-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
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Alexander Duyck authored
Allocate the queue pairs individually instead of as a group. This allows for much easier queue management as it is possible to dynamically resize the queues without having to free and allocate the entire block. Ease statistic collection by treating Tx/Rx queue pairs as a single unit. Each pair is allocated together and starts with a Tx queue and ends with an Rx queue. By ordering them this way it is possible to know the Rx offset based on a pointer to the Tx queue. Signed-off-by:
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Alexander Duyck authored
This replaces the ring container array with a linked list. The idea is to make the logic much easier to deal with since this will allow us to call a simple helper function from the q_vectors to go through the entire list. Signed-off-by:
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Alexander Duyck authored
Allocate the q_vectors individually. The advantage to this is that it allows for easier freeing and allocation. In addition it makes it so that we could do node specific allocations at some point in the future. Signed-off-by:
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Alexander Duyck authored
This makes it so that the Tx and Rx byte and packet counts are separated from the rest of the statistics. This allows for better isolation of these stats when we move them into the 64 bit statistics. Simplify things by re-ordering how the stats display in ethtool. Instead of displaying all of the Tx queues as a block, followed by all the Rx queues, the new order is Tx[0], Rx[0], Tx[1], Rx[1], ..., Tx[n], Rx[n]. This reduces the loops and cleans up the display for testing purposes since it is very easy to verify if flow director is doing the right thing as the Tx and Rx queue pair are shown in pairs. Signed-off-by:
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Alexander Duyck authored
Implement BQL (byte queue limit) support in i40e. Signed-off-by:
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Alexander Duyck authored
Drop Tx flag and TXSW which is tested but never set. As a result of this change we can drop a complicated check that always resulted in the final result of i40e_tx_csum being equal to the CHECKSUM_PARTIAL value. As such we can replace the entire function call with just a check for skb->summed == CHECKSUM_PARTIAL. Signed-off-by:
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Alexander Duyck authored
Sync the fast path for i40e_tx_map and i40e_clean_tx_irq so that they are similar to igb and ixgbe. - Only update the Tx descriptor ring in tx_map - Make skb mapping always on the first buffer in the chain - Drop the use of MAPPED_AS_PAGE Tx flag - Only store flags on the first buffer_info structure Signed-off-by:
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Alexander Duyck authored
Avoid directly incrementing next_to_use for multiple reasons. The main reason being that if we directly increment it then it can attain a state where it is equal to the ring count. Technically this is a state it should not be able to reach but the way this is written it now can. This patch pulls the value off into a register and then increments it and writes back either the value or 0 depending on if the value is equal to the ring count. Signed-off-by:
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Alexander Duyck authored
- drop the mapped_as_page u8 from the Tx buffer info as it was unused - use the DMA unmap accessors for Tx DMA - replace checks of DMA with checks of the unmap length to verify if an unmap is needed - update the Tx buffer layout to make it consistent with igb, ixgbe Signed-off-by:
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Eric Dumazet authored
sk_pacing_rate is read by sch_fq packet scheduler at any time, with no synchronization, so make sure we update it in a sensible way. ACCESS_ONCE() is how we instruct compiler to not do stupid things, like using the memory location as a temporary variable. Signed-off-by:
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Eric Dumazet authored
TCP listener refactoring, part 5 : We want to be able to insert request sockets (SYN_RECV) into main ehash table instead of the per listener hash table to allow RCU lookups and remove listener lock contention. This patch includes the needed struct sock_common in front of struct request_sock This means there is no more inet6_request_sock IPv6 specific structure. Following inet_request_sock fields were renamed as they became macros to reference fields from struct sock_common. Prefix ir_ was chosen to avoid name collisions. loc_port -> ir_loc_port loc_addr -> ir_loc_addr rmt_addr -> ir_rmt_addr rmt_port -> ir_rmt_port iif -> ir_iif Signed-off-by:
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Eric Dumazet authored
skb_gro_receive() is currently limited to 16 or 17 MSS per GRO skb, typically 24616 bytes, because it fills up to MAX_SKB_FRAGS frags. It's relatively easy to extend the skb using frag_list to allow more frags to be appended into the last sk_buff. This still builds very efficient skbs, and allows reaching 45 MSS per skb. (45 MSS GRO packet uses one skb plus a frag_list containing 2 additional sk_buff) High speed TCP flows benefit from this extension by lowering TCP stack cpu usage (less packets stored in receive queue, less ACK packets processed) Forwarding setups could be hurt, as such skbs will need to be linearized, although its not a new problem, as GRO could already provide skbs with a frag_list. We could make the 65536 bytes threshold a tunable to mitigate this. (First time we need to linearize skb in skb_needs_linearize(), we could lower the tunable to ~16*1460 so that following skb_gro_receive() calls build smaller skbs) Signed-off-by:
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baker.zhang authored
This is a enhancement. for the first node in fib_trie, newpos is 0, bit is 1. Only for the leaf or node with unmatched key need calc pos. Signed-off-by:
baker.zhang <baker.kernel@gmail.com> Signed-off-by:
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Gao feng authored
We can only setup multicast address for network device when net_device_ops->ndo_set_rx_mode is not null. Some configurations need to add multicast address for net device, such as netfilter cluster match module. Add a fake ndo_set_rx_mode function to allow this operation. Signed-off-by:
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Alexander Duyck authored
The Tx "completed" stat was part of the original rewrite for detecting Tx hangs. However some time ago in ixgbe I determined that we could just use the packets stat instead. Since then this stat was removed from ixgbe and it serves no purpose in i40e so it can be dropped. Signed-off-by:
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Anjali Singhai authored
Link events should not print to the log until the device is administratively up. Signed-off-by:
Anjali Singhai <anjali.singhai@intel.com> Signed-off-by:
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- 09 Oct, 2013 11 commits
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Ajit Khaparde authored
Signed-off-by:
Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by:
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Ajit Khaparde authored
SkyHawk-R can support RoCE. Add code to display RoCE specific counters maintained in hardware. Signed-off-by:
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Ajit Khaparde authored
Moving to version 2 of GET_STATS command as SkyHawk-R supports higher number of rings. Signed-off-by:
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Yuval Mintz authored
Each network interface (either PF or VF) is identified by its port's MAC id. Signed-off-by:
Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by:
Ariel Elior <ariele@broadcom.com> Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
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Eric Dumazet authored
CONFIG_IPV6=n is still a valid choice ;) It appears we can remove dead code. Reported-by:
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Eric Dumazet authored
At this point sk might contain garbage. Signed-off-by:
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Eric Dumazet authored
TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by:
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Eric Dumazet authored
TCP listener refactoring, part 3 : Our goal is to hash SYN_RECV sockets into main ehash for fast lookup, and parallel SYN processing. Current inet_ehash_bucket contains two chains, one for ESTABLISH (and friend states) sockets, another for TIME_WAIT sockets only. As the hash table is sized to get at most one socket per bucket, it makes little sense to have separate twchain, as it makes the lookup slightly more complicated, and doubles hash table memory usage. If we make sure all socket types have the lookup keys at the same offsets, we can use a generic and faster lookup. It turns out TIME_WAIT and ESTABLISHED sockets already have common lookup fields for IPv4. [ INET_TW_MATCH() is no longer needed ] I'll provide a follow-up to factorize IPv6 lookup as well, to remove INET6_TW_MATCH() This way, SYN_RECV pseudo sockets will be supported the same. A new sock_gen_put() helper is added, doing either a sock_put() or inet_twsk_put() [ and will support SYN_RECV later ]. Note this helper should only be called in real slow path, when rcu lookup found a socket that was moved to another identity (freed/reused immediately), but could eventually be used in other contexts, like sock_edemux() Before patch : dmesg | grep "TCP established" TCP established hash table entries: 524288 (order: 11, 8388608 bytes) After patch : TCP established hash table entries: 524288 (order: 10, 4194304 bytes) Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflicts: include/linux/netdevice.h net/core/sock.c Trivial merge issues. Removal of "extern" for functions declaration in netdevice.h at the same time "const" was added to an argument. Two parallel line additions in net/core/sock.c Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfcDavid S. Miller authored
Ben Hutchings says: ==================== Some more fixes for EF10 support; hopefully the last lot: 1. Fixes for reading statistics, from Edward Cree and Jon Cooper. 2. Addition of ethtool statistics for packets dropped by the hardware before they were associated with a specific function, from Edward Cree. 3. Only bind to functions that are in control of their associated port, as the driver currently assumes this is the case. ==================== Signed-off-by: -
Eric Dumazet authored
Steinar reported FQ pacing was not working for UDP flows. It looks like the initial sk->sk_pacing_rate value of 0 was a wrong choice. We should init it to ~0U (unlimited) Then, TCA_FQ_FLOW_DEFAULT_RATE should be removed because it makes no real sense. The default rate is really unlimited, and we need to avoid a zero divide. Reported-by:
Steinar H. Gunderson <sesse@google.com> Signed-off-by:
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