- 06 Sep, 2016 14 commits
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David S. Miller authored
Sean Wang says: ==================== net: ethernet: mediatek: add enhancements to RX path Changes since v1: - fix message typos and add coverletter Changes since v2: - split from the previous series for submitting add enhancements as a series targeting 'net-next' and add indents before comments. Changes since v3: - merge the patch using PDMA RX path - fixed the input of mtk_poll_rx is with the remaining budget Changes since v4: - save one wmb and register update when no packet is being handled inside mtk_poll_rx call - fixed incorrect return packet count from mtk_napi_rx ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Sean Wang authored
The patch adds support for aggregating more SKBs feed into NAPI in order to get more benefits from generic receive offload (GRO) by peeking at the RX ring status and moving more packets right before returning from NAPI RX polling handler if NAPI budgets are still available and some packets already present in hardware. Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Signed-off-by:
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Sean Wang authored
The patch makes move wmb() to outside the loop that could help RX path handling more faster although that RX descriptors aren't freed for DMA to use as soon as possible, but based on my experiment and the result shows it still can reach about 943Mbpis without performance drop that is tested based on the setup with one port using Giga PHY and 256 RX descriptors for DMA to move. Signed-off-by:
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David S. Miller authored
Joe Perches says: ==================== hso: neatening This seems to be the only code in the kernel that uses macro defines with a trailing underscore. Fix that. ==================== Signed-off-by: -
Joe Perches authored
Use a more common logging style Miscellanea: o Add pr_fmt to prefix each output message o Realign arguments Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Joe Perches authored
Macros that end in an underscore are just odd. Add hso_dbg(level, fmt, ...) and use it everwhere instead. Several uses had additional unnecessary newlines as the macro added a newline. Remove the newline from the macro and add newlines to each use as appropriate. Remove now unused D<digit> macros. Signed-off-by:
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Woojung Huh authored
Add mdix control through ethtool. Signed-off-by:
Woojung Huh <Woojung.huh@gmail.com> Signed-off-by:
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Woojung Huh authored
Add STRAP_STATUS defines. Signed-off-by:
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Woojung Huh authored
Add Microchip Linux Driver Support as maintainer because this driver is maintaining by Microchip. Signed-off-by:
Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by:
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David S. Miller authored
Vivien Didelot says: ==================== net: dsa: mv88e6xxx: isolate Global2 support Registers of Marvell chips are organized in internal SMI devices. One of them at address 0x1C is called Global2. It provides an extended set of registers, used for interrupt control, EEPROM access, indirect PHY access (to bypass the PHY Polling Unit) and cross-chip setup. Most chips have it, but some others don't (older ones such as 6060). Now that its related code is isolated in mv88e6xxx_g2_* functions, move it to its own global2.c file, making most of its setup code static. Then make its compilation optional, which allows to reduce the size of the mv88e6xxx driver for devices such as home routers embedding Ethernet chips without Global2 support. It is present on most recent chips, thus enable its support by default. Changes in v2: fail probe if GLOBAL2 is required but not enabled. ==================== Signed-off-by: -
Vivien Didelot authored
Since not every chip has a Global2 set of registers, make its support optional, in which case the related functions will return -EOPNOTSUPP. This also allows to reduce the size of the mv88e6xxx driver for devices such as home routers embedding Ethernet chips without Global2 support. It is present on most recent chips, thus enable its support by default. Signed-off-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
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Vivien Didelot authored
Marvell chips are composed of multiple SMI devices. One of them at address 0x1C is called Global2. It provides an extended set of registers, used for interrupt control, EEPROM access, indirect PHY access (to bypass the PHY Polling Unit) and cross-chip related setup. Most chips have it, but some others don't (older ones such as 6060). Now that its related code is isolated in mv88e6xxx_g2_* functions, move it to its own global2.c file, making most of its setup code static. Document each registers in the meantime. Its compilation can be later avoided for chips without such registers. Signed-off-by:
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Vivien Didelot authored
Since the mv88e6xxx.c file has been renamed, the driver compiled as a module is called chip.ko instead of mv88e6xxx.ko. Fix this. Fixes: fad09c73 ("net: dsa: mv88e6xxx: rename single-chip support") Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for your net-next tree. Most relevant updates are the removal of per-conntrack timers to use a workqueue/garbage collection approach instead from Florian Westphal, the hash and numgen expression for nf_tables from Laura Garcia, updates on nf_tables hash set to honor the NLM_F_EXCL flag, removal of ip_conntrack sysctl and many other incremental updates on our Netfilter codebase. More specifically, they are: 1) Retrieve only 4 bytes to fetch ports in case of non-linear skb transport area in dccp, sctp, tcp, udp and udplite protocol conntrackers, from Gao Feng. 2) Missing whitespace on error message in physdev match, from Hangbin Liu. 3) Skip redundant IPv4 checksum calculation in nf_dup_ipv4, from Liping Zhang. 4) Add nf_ct_expires() helper function and use it, from Florian Westphal. 5) Replace opencoded nf_ct_kill() call in IPVS conntrack support, also from Florian. 6) Rename nf_tables set implementation to nft_set_{name}.c 7) Introduce the hash expression to allow arbitrary hashing of selector concatenations, from Laura Garcia Liebana. 8) Remove ip_conntrack sysctl backward compatibility code, this code has been around for long time already, and we have two interfaces to do this already: nf_conntrack sysctl and ctnetlink. 9) Use nf_conntrack_get_ht() helper function whenever possible, instead of opencoding fetch of hashtable pointer and size, patch from Liping Zhang. 10) Add quota expression for nf_tables. 11) Add number generator expression for nf_tables, this supports incremental and random generators that can be combined with maps, very useful for load balancing purpose, again from Laura Garcia Liebana. 12) Fix a typo in a debug message in FTP conntrack helper, from Colin Ian King. 13) Introduce a nft_chain_parse_hook() helper function to parse chain hook configuration, this is used by a follow up patch to perform better chain update validation. 14) Add rhashtable_lookup_get_insert_key() to rhashtable and use it from the nft_set_hash implementation to honor the NLM_F_EXCL flag. 15) Missing nulls check in nf_conntrack from nf_conntrack_tuple_taken(), patch from Florian Westphal. 16) Don't use the DYING bit to know if the conntrack event has been already delivered, instead a state variable to track event re-delivery states, also from Florian. 17) Remove the per-conntrack timer, use the workqueue approach that was discussed during the NFWS, from Florian Westphal. 18) Use the netlink conntrack table dump path to kill stale entries, again from Florian. 19) Add a garbage collector to get rid of stale conntracks, from Florian. 20) Reschedule garbage collector if eviction rate is high. 21) Get rid of the __nf_ct_kill_acct() helper. 22) Use ARPHRD_ETHER instead of hardcoded 1 from ARP logger. 23) Make nf_log_set() interface assertive on unsupported families. ==================== Signed-off-by:
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- 04 Sep, 2016 6 commits
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Paul Burton authored
cpmac_start_xmit() used the max() macro on skb->len (an unsigned int) and ETH_ZLEN (a signed int literal). This led to the following compiler warning: In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from drivers/net/ethernet/ti/cpmac.c:19: drivers/net/ethernet/ti/cpmac.c: In function 'cpmac_start_xmit': include/linux/kernel.h:748:17: warning: comparison of distinct pointer types lacks a cast (void) (&_max1 == &_max2); \ ^ drivers/net/ethernet/ti/cpmac.c:560:8: note: in expansion of macro 'max' len = max(skb->len, ETH_ZLEN); ^ On top of this, it assigned the result of the max() macro to a signed integer whilst all further uses of it result in it being cast to varying widths of unsigned integer. Fix this up by using max_t to ensure the comparison is performed as unsigned integers, and for consistency change the type of the len variable to unsigned int. Signed-off-by:Paul Burton <paul.burton@imgtec.com> Signed-off-by:
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Hariprasad Shenai authored
Adds support for ndo_get_vf_config, also fill the default mac address that will be provided to the VF by firmware, in case user doesn't provide one. So user can get the default MAC address address also through ndo_get_vf_config. Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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David S. Miller authored
Cong Wang says: ==================== net: some minor optimization for netns id Cong Wang (2): vxlan: call peernet2id() in fdb notification netns: avoid disabling irq for netns id ==================== Signed-off-by: -
WANG Cong authored
We never read or change netns id in hardirq context, the only place we read netns id in softirq context is in vxlan_xmit(). So, it should be enough to just disable BH. Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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WANG Cong authored
netns id should be already allocated each time we change netns, that is, in dev_change_net_namespace() (more precisely in rtnl_fill_ifinfo()). It is safe to just call peernet2id() here. Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by:
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Joe Stringer authored
When an error occurs during conntrack template creation as part of actions validation, we need to free the template. Previously we've been using nf_ct_put() to do this, but nf_ct_tmpl_free() is more appropriate. Signed-off-by:
Joe Stringer <joe@ovn.org> Signed-off-by:
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- 03 Sep, 2016 16 commits
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David S. Miller authored
Raghu Vatsavayi says: ==================== liquidio CN23XX support I am posting the remaining half of patchset after the acceptance of first half. With this patchset I am able to completely submit the code of V3 patchset which you earlier advised me to split into smaller ones. This V5 patch also addresses all the comments from previous submission: 1) Avoid busy loop while reading registers. 2) Other minor comments about debug messages and constants. Please apply patches in following order as some of the patches depend on earlier patches. ==================== Signed-off-by: -
Raghu Vatsavayi authored
Adds support for pause frame and priv flag for cn23xx device. Signed-off-by:
Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by:
Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by:
Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by:
Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by:
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Raghu Vatsavayi authored
This patch adds NAPI related support for cn23xx device. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for watchdog based health monitoring of octeon cores on cn23xx device. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds support for some control operations like LED identification, ethtool statistics and intr config for cn23xx device. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for data path related changes based on octeon3 instruction header(ih3) for cn23xx. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for Instruction Queue(IQ) index manipulation routines through bar1 of cn23xx. Signed-off-by:
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Raghu Vatsavayi authored
Adds support for RX control commands on cn23xx device. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds work queue support for link status and control commands. Signed-off-by:
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David S. Miller authored
Jon Maloy says: ==================== tipc: improve broadcast NACK mechanism The broadcast protocol has turned out to not scale well beyond 70-80 nodes, while it is now possible to build TIPC clusters of at least ten times that size. This commit series improves the NACK/retransmission mechanism of the broadcast protocol to make is at scalable as the rest of TIPC. ==================== Signed-off-by: -
Jon Paul Maloy authored
Because of the risk of an excessive number of NACK messages and retransissions, receivers have until now abstained from sending broadcast NACKS directly upon detection of a packet sequence number gap. We have instead relied on such gaps being detected by link protocol STATE message exchange, something that by necessity delays such detection and subsequent retransmissions. With the introduction of unicast NACK transmission and rate control of retransmissions we can now remove this limitation. We now allow receiving nodes to send NACKS immediately, while coordinating the permission to do so among the nodes in order to avoid NACK storms. Reviewed-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
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Jon Paul Maloy authored
As cluster sizes grow, so does the amount of identical or overlapping broadcast NACKs generated by the packet receivers. This often leads to 'NACK crunches' resulting in huge numbers of redundant retransmissions of the same packet ranges. In this commit, we introduce rate control of broadcast retransmissions, so that a retransmitted range cannot be retransmitted again until after at least 10 ms. This reduces the frequency of duplicate, redundant retransmissions by an order of magnitude, while having a significant positive impact on overall throughput and scalability. Reviewed-by:
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Jon Paul Maloy authored
When we send broadcasts in clusters of more 70-80 nodes, we sometimes see the broadcast link resetting because of an excessive number of retransmissions. This is caused by a combination of two factors: 1) A 'NACK crunch", where loss of broadcast packets is discovered and NACK'ed by several nodes simultaneously, leading to multiple redundant broadcast retransmissions. 2) The fact that the NACKS as such also are sent as broadcast, leading to excessive load and packet loss on the transmitting switch/bridge. This commit deals with the latter problem, by moving sending of broadcast nacks from the dedicated BCAST_PROTOCOL/NACK message type to regular unicast LINK_PROTOCOL/STATE messages. We allocate 10 unused bits in word 8 of the said message for this purpose, and introduce a new capability bit, TIPC_BCAST_STATE_NACK in order to keep the change backwards compatible. Reviewed-by:
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David Wu authored
Add the gmac power domain support for rk3399, in order to save more power consumption. Signed-off-by:
David Wu <david.wu@rock-chips.com> Signed-off-by:
Caesar Wang <wxt@rock-chips.com> Signed-off-by:
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Roger Chen authored
GMAC Power Domain(PD) will be disabled during suspend. That will causes GRF registers reset. So corresponding GRF registers for GMAC must be setup again. Signed-off-by:
Roger Chen <roger.chen@rock-chips.com> Signed-off-by:
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Roger Chen authored
Add constants and callback functions for the dwmac on rk3228/rk3229 socs. As can be seen, the base structure is the same, only registers and the bits in them moved slightly. Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Signed-off-by:
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- 02 Sep, 2016 4 commits
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Rosen, Rami authored
This patch fixes the retun value of switchdev_port_fdb_dump() when CONFIG_NET_SWITCHDEV is not set. This avoids getting "warning: return makes integer from pointer without a cast [-Wint-conversion]" when building when CONFIG_NET_SWITCHDEV is not set under several compiler versions. This warning is due to commit d297653d ("rtnetlink: fdb dump: optimize by saving last interface markers"). Signed-off-by:
Rami Rosen <rami.rosen@intel.com> Acked-by:
Roopa Prabhu <roopa@cumulusnetworks.com> Reported-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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David S. Miller authored
Alexei Starovoitov says: ==================== perf, bpf: add support for bpf in sw/hw perf_events this patch set is a follow up to the discussion: https://lkml.kernel.org/r/20160804142853.GO6862%20()%20twins%20!%20programming%20!%20kicks-ass%20!%20net It turned out to be simpler than what we discussed. Patches 1-3 is bpf-side prep for the main patch 4 that adds bpf program as an overflow_handler to sw and hw perf_events. Patches 5 and 6 are examples from myself and Brendan. Peter, to implement your suggestion to add ifdef CONFIG_BPF_SYSCALL inside struct perf_event, I had to shuffle ifdefs in events/core.c Please double check whether that is what you wanted to see. v2->v3: fixed few more minor issues v1->v2: fixed issues spotted by Peter and Daniel. ==================== Acked-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
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Brendan Gregg authored
sample instruction pointer and frequency count in a BPF map Signed-off-by:
Brendan Gregg <bgregg@netflix.com> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Alexei Starovoitov authored
The bpf program is called 50 times a second and does hashmap[kern&user_stackid]++ It's primary purpose to check that key bpf helpers like map lookup, update, get_stackid, trace_printk and ctx access are all working. It checks: - PERF_COUNT_HW_CPU_CYCLES on all cpus - PERF_COUNT_HW_CPU_CYCLES for current process and inherited perf_events to children - PERF_COUNT_SW_CPU_CLOCK on all cpus - PERF_COUNT_SW_CPU_CLOCK for current process Signed-off-by:
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