- 26 Oct, 2016 14 commits
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Stefan Richter authored
firewire-net, like the older eth1394 driver, reduced the initial MTU to less than 1500 octets if the local link layer controller's asynchronous packet reception limit was lower. This is bogus, since this reception limit does not have anything to do with the transmission limit. Neither did this reduction affect the TX path positively, nor could it prevent link fragmentation at the RX path. Many FireWire CardBus cards have a max_rec of 9, causing an initial MTU of 1024 - 16 = 1008. RFC 2734 and RFC 3146 allow a minimum max_rec = 8, which would result in an initial MTU of 512 - 16 = 496. On such cards, IPv6 could only be employed if the MTU was manually increased to 1280 or more, i.e. IPv6 would not work without intervention from userland. We now always initialize the MTU to 1500, which is the default according to RFC 2734 and RFC 3146. On a VIA VT6316 based CardBus card which was affected by this, changing the MTU from 1008 to 1500 also increases TX bandwidth by 6 %. RX remains unaffected. CC: netdev@vger.kernel.org CC: linux1394-devel@lists.sourceforge.net CC: Jarod Wilson <jarod@redhat.com> Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Stefan Richter authored
Commit b3e3893e ("net: use core MTU range checking in misc drivers") mistakenly introduced an upper limit for firewire-net's MTU based on the local link layer controller's reception capability. Revert this. Neither RFC 2734 nor our implementation impose any particular upper limit. Actually, to be on the safe side and to make the code explicit, set ETH_MAX_MTU = 65535 as upper limit now. (I replaced sizeof(struct rfc2734_header) by the equivalent RFC2374_FRAG_HDR_SIZE in order to avoid distracting long/int conversions.) Fixes: b3e3893e('net: use core MTU range checking in misc drivers') CC: netdev@vger.kernel.org CC: linux1394-devel@lists.sourceforge.net CC: Jarod Wilson <jarod@redhat.com> Signed-off-by:
Jarod Wilson <jarod@redhat.com> Signed-off-by:
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Wei Yongjun authored
This node pointer is returned by of_get_child_by_name() with refcount incremented in this function. of_node_put() on it before exitting this function. This is detected by Coccinelle semantic patch. Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Wei Yongjun authored
Use setup_timer() instead of init_timer(), being the preferred/standard way to set a timer up. Also, quoting the mod_timer() function comment: -> mod_timer() is a more efficient way to update the expire field of an active timer (if the timer is inactive it will be activated). Use setup_timer and mod_timer to setup and arm a timer, to make the code cleaner and easier to read. Signed-off-by:
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Wei Yongjun authored
Fix to return error code -ENODEV from the DMA is not supported error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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Wei Yongjun authored
It is not allowed to call kfree_skb() from hardware interrupt context or with interrupts being disabled, spin_lock_irqsave() make sure always in irq disable context. So the kfree_skb() should be replaced with dev_kfree_skb_irq(). This is detected by Coccinelle semantic patch. Signed-off-by:
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Wei Yongjun authored
Fix to return error code -EINVAL from the error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
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Wei Yongjun authored
Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Wei Yongjun authored
It's not necessary to free memory allocated with devm_kzalloc in the remove path and using kfree leads to a double free. Fixes: 84640e27 ("net: netcp: Add Keystone NetCP core ethernet driver") Signed-off-by:
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Sven Eckelmann authored
The maximum MTU is defined via the slave devices of an batman-adv interface. Thus it is not possible to calculate the max_mtu during the creation of the batman-adv device when no slave devices are attached. Doing so would for example break non-fragmentation setups which then (incorrectly) allow an MTU of 1500 even when underlying device cannot transport 1500 bytes + batman-adv headers. Checking the dynamically calculated max_mtu via the minimum of the slave devices MTU during .ndo_change_mtu is also used by the bridge interface. Cc: Jarod Wilson <jarod@redhat.com> Fixes: b3e3893e ("net: use core MTU range checking in misc drivers") Signed-off-by:
Sven Eckelmann <sven@narfation.org> Signed-off-by:
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David S. Miller authored
Xo Wang says: ==================== Broadcom BCM54612E support This series is based on tip of torvalds/master. The first patch adds register definitions from Broadcom docs. The second patch adds the BCM54612E PHY ID, flags, and device-specific RGMII internal delay initialization. I tested on a custom board with an Aspeed AST2500 SOC with its second MAC connected to this PHY. ==================== Signed-off-by: -
Xo Wang authored
This PHY has internal delays enabled after reset. This clears the internal delay enables unless the interface specifically requests them. Signed-off-by:
Xo Wang <xow@google.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Joel Stanley <joel@jms.id.au> Signed-off-by:
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Xo Wang authored
Add the RXD-to-RXC skew (delay) time bit in the Miscellaneous Control shadow register and a mask for the shadow selector field. Remove a re-definition of MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL. Signed-off-by:
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Eric Dumazet authored
When I prepared commit d250a5f9 ("pkt_sched: gen_estimator: Dont report fake rate estimators"), htb still had an implicit rate estimator for all its classes. Then later, I made this rate estimator optional in commit 64153ce0 ("net_sched: htb: do not setup default rate estimators"), but I forgot to update htb use of gnet_stats_copy_rate_est() After this patch, "tc -s qdisc ..." no longer report fake rate estimators for HTB classes. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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- 23 Oct, 2016 11 commits
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Cyrill Gorcunov authored
In criu we are actively using diag interface to collect sockets present in the system when dumping applications. And while for unix, tcp, udp[lite], packet, netlink it works as expected, the raw sockets do not have. Thus add it. v2: - add missing sock_put calls in raw_diag_dump_one (by eric.dumazet@) - implement @destroy for diag requests (by dsa@) v3: - add export of raw_abort for IPv6 (by dsa@) - pass net-admin flag into inet_sk_diag_fill due to changes in net-next branch (by dsa@) v4: - use @pad in struct inet_diag_req_v2 for raw socket protocol specification: raw module carries sockets which may have custom protocol passed from socket() syscall and sole @sdiag_protocol is not enough to match underlied ones - start reporting protocol specifed in socket() call when sockets are raw ones for the same reason: user space tools like ss may parse this attribute and use it for socket matching v5 (by eric.dumazet@): - use sock_hold in raw_sock_get instead of atomic_inc, we're holding (raw_v4_hashinfo|raw_v6_hashinfo)->lock when looking up so counter won't be zero here. v6: - use sdiag_raw_protocol() helper which will access @pad structure used for raw sockets protocol specification: we can't simply rename this member without breaking uapi v7: - sine sdiag_raw_protocol() helper is not suitable for uapi lets rather make an alias structure with proper names. __check_inet_diag_req_raw helper will catch if any of structure unintentionally changed. CC: David S. Miller <davem@davemloft.net> CC: Eric Dumazet <eric.dumazet@gmail.com> CC: David Ahern <dsa@cumulusnetworks.com> CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> CC: James Morris <jmorris@namei.org> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> CC: Patrick McHardy <kaber@trash.net> CC: Andrey Vagin <avagin@openvz.org> CC: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by:
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Thomas Graf authored
The field is initialized by ILA and MPLS but never used. Remove it. Signed-off-by:
Thomas Graf <tgraf@suug.ch> Signed-off-by:
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Andrey Vagin authored
net_mutex can be locked for a long time. It may be because many namespaces are being destroyed or many processes decide to create a network namespace. Both these operations are heavy, so it is better to have an ability to kill a process which is waiting net_mutex. Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
Andrei Vagin <avagin@openvz.org> Signed-off-by:
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Shmulik Ladkani authored
META_COLLECTOR int_vlan_tag() assumes that if the accel tag (vlan_tci) is zero, then no vlan accel tag is present. This is incorrect for zero VID vlan accel packets, making the following match fail: tc filter add ... basic match 'meta(vlan mask 0xfff eq 0)' ... Apparently 'int_vlan_tag' was implemented prior VLAN_TAG_PRESENT was introduced in 05423b24 "vlan: allow null VLAN ID to be used" (and at time introduced, the 'vlan_tx_tag_get' call in em_meta was not adapted). Fix, testing skb_vlan_tag_present instead of testing skb_vlan_tag_get's value. Fixes: 05423b24 ("vlan: allow null VLAN ID to be used") Fixes: 1a31f204 ("netsched: Allow meta match on vlan tag on receive") Signed-off-by:
Shmulik Ladkani <shmulik.ladkani@gmail.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw: Driver update Mostly cosmetics and small resource values management rewrite. ==================== Signed-off-by: -
Jiri Pirko authored
Since the number of resources is going to get much bigger, ease up the addition by simly defining IDs. Convert the existing structure members to a set array, one for validity, one for values. Introduce a set of getters and setters for easy access. Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Reviewed-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Jiri Pirko authored
Push cmd resource query related defines to cmd.h where they belong. Signed-off-by:
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Jiri Pirko authored
Extend the MLXSW_REG_DEFINE macro to store register name in string form. Use this string later on instead of hard coded string values. Signed-off-by:
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Jiri Pirko authored
Save some code and also prepare to easily carry name in string form. Signed-off-by:
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Jiri Pirko authored
Enforce const for getter buf args. Signed-off-by:
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Jiri Pirko authored
These should be const, so enforce it. Signed-off-by:
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- 22 Oct, 2016 7 commits
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David S. Miller authored
Daniel Borkmann says: ==================== Add BPF numa id helper This patch set adds a helper for retrieving current numa node id and a test case for SO_REUSEPORT. ==================== Signed-off-by: -
Daniel Borkmann authored
The test case is very similar to reuseport_bpf_cpu, only that here we select socket members based on current numa node id. # numactl -H available: 2 nodes (0-1) node 0 cpus: 0 1 2 3 4 5 12 13 14 15 16 17 node 0 size: 128867 MB node 0 free: 120080 MB node 1 cpus: 6 7 8 9 10 11 18 19 20 21 22 23 node 1 size: 96765 MB node 1 free: 87504 MB node distances: node 0 1 0: 10 20 1: 20 10 # ./reuseport_bpf_numa ---- IPv4 UDP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv6 UDP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv4 TCP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 ---- IPv6 TCP ---- send node 0, receive socket 0 send node 1, receive socket 1 send node 1, receive socket 1 send node 0, receive socket 0 SUCCESS Signed-off-by:Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Daniel Borkmann authored
Use case is mainly for soreuseport to select sockets for the local numa node, but since generic, lets also add this for other networking and tracing program types. Suggested-by:
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David S. Miller authored
Paolo Abeni says: ==================== udp: refactor memory accounting This patch series refactor the udp memory accounting, replacing the generic implementation with a custom one, in order to remove the needs for locking the socket on the enqueue and dequeue operations. The socket backlog usage is dropped, as well. The first patch factor out pieces of some queue and memory management socket helpers, so that they can later be used by the udp memory accounting functions. The second patch adds the memory account helpers, without using them. The third patch replacse the old rx memory accounting path for udp over ipv4 and udp over ipv6. In kernel UDP users are updated, as well. The memory accounting schema is described in detail in the individual patch commit message. The performance gain depends on the specific scenario; with few flows (and little contention in the original code) the differences are in the noise range, while with several flows contending the same socket, the measured speed-up is relevant (e.g. even over 100% in case of extreme contention) Many thanks to Eric Dumazet for the reiterated reviews and suggestions. v5 -> v6: - do not orphan the skb on enqueue, skb_steal_sock() already did the work for us v4 -> v5: - use the receive queue spin lock to protect the memory accounting - several minor clean-up v3 -> v4: - simplified the locking schema, always use a plain spinlock v2 -> v3: - do not set the now unsed backlog_rcv callback v1 -> v2: - changed slighly the memory accounting schema, we now perform lazy reclaim - fixed forward_alloc updating issue - fixed memory counter integer overflows ==================== Signed-off-by: -
Paolo Abeni authored
Completely avoid default sock memory accounting and replace it with udp-specific accounting. Since the new memory accounting model encapsulates completely the required locking, remove the socket lock on both enqueue and dequeue, and avoid using the backlog on enqueue. Be sure to clean-up rx queue memory on socket destruction, using udp its own sk_destruct. Tested using pktgen with random src port, 64 bytes packet, wire-speed on a 10G link as sender and udp_sink as the receiver, using an l4 tuple rxhash to stress the contention, and one or more udp_sink instances with reuseport. nr readers Kpps (vanilla) Kpps (patched) 1 170 440 3 1250 2150 6 3000 3650 9 4200 4450 12 5700 6250 v4 -> v5: - avoid unneeded test in first_packet_length v3 -> v4: - remove useless sk_rcvqueues_full() call v2 -> v3: - do not set the now unsed backlog_rcv callback v1 -> v2: - add memory pressure support - fixed dropwatch accounting for ipv6 Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Acked-by:
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Paolo Abeni authored
Avoid using the generic helpers. Use the receive queue spin lock to protect the memory accounting operation, both on enqueue and on dequeue. On dequeue perform partial memory reclaiming, trying to leave a quantum of forward allocated memory. On enqueue use a custom helper, to allow some optimizations: - use a plain spin_lock() variant instead of the slightly costly spin_lock_irqsave(), - avoid dst_force check, since the calling code has already dropped the skb dst - avoid orphaning the skb, since skb_steal_sock() already did the work for us The above needs custom memory reclaiming on shutdown, provided by the udp_destruct_sock(). v5 -> v6: - don't orphan the skb on enqueue v4 -> v5: - replace the mem_lock with the receive queue spin lock - ensure that the bh is always allowed to enqueue at least a skb, even if sk_rcvbuf is exceeded v3 -> v4: - reworked memory accunting, simplifying the schema - provide an helper for both memory scheduling and enqueuing v1 -> v2: - use a udp specific destrctor to perform memory reclaiming - remove a couple of helpers, unneeded after the above cleanup - do not reclaim memory on dequeue if not under memory pressure - reworked the fwd accounting schema to avoid potential integer overflow Acked-by: -
Paolo Abeni authored
Basic sock operations that udp code can use with its own memory accounting schema. No functional change is introduced in the existing APIs. v4 -> v5: - avoid whitespace changes v2 -> v4: - avoid exporting __sock_enqueue_skb v1 -> v2: - avoid export sock_rmem_free Acked-by:
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- 21 Oct, 2016 2 commits
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Jarod Wilson authored
These few drivers call ether_setup(), but have no ndo_change_mtu, and thus were overlooked for changes to MTU range checking behavior. They previously had no range checks, so for feature-parity, set their min_mtu to 0 and max_mtu to ETH_MAX_MTU (65535), instead of the 68 and 1500 inherited from the ether_setup() changes. Fine-tuning can come after we get back to full feature-parity here. CC: netdev@vger.kernel.org Reported-by:
Asbjoern Sloth Toennesen <asbjorn@asbjorn.st> CC: Asbjoern Sloth Toennesen <asbjorn@asbjorn.st> CC: R Parameswaran <parameswaran.r7@gmail.com> Signed-off-by:
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Vitaly Kuznetsov authored
Fix in commit 88098834 ("hv_netvsc: set nvdev link after populating chn_table") turns out to be incomplete. A crash in netvsc_get_next_send_section() is observed on mtu change when the device is under load. The race I identified is: if we get to netvsc_send() after we set net_device_ctx->nvdev link in netvsc_device_add() but before we finish netvsc_connect_vsp()->netvsc_init_buf() send_section_map is not allocated and we crash. Unfortunately we can't set net_device_ctx->nvdev link after the netvsc_init_buf() call as during the negotiation we need to receive packets and on the receive path we check for it. It would probably be possible to split nvdev into a pair of nvdev_in and nvdev_out links and check them accordingly in get_outbound_net_device()/ get_inbound_net_device() but this looks like an overkill. Check that send_section_map is allocated in netvsc_send(). Signed-off-by:
Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by:
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- 20 Oct, 2016 6 commits
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David S. Miller authored
Jarod Wilson says: ==================== net: use core MTU range checking everywhere This stack of patches should get absolutely everything in the kernel converted from doing their own MTU range checking to the core MTU range checking. This second spin includes alterations to hopefully fix all concerns raised with the first, as well as including some additional changes to drivers and infrastructure where I completely missed necessary updates. These have all been built through the 0-day build infrastructure via the (rebasing) master branch at https://github.com/jarodwilson/linux-muck, which at the time of the most recent compile across 147 configs, was based on net-next at commit 7b1536ef. ==================== Signed-off-by:
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Jarod Wilson authored
ipv4/ip_tunnel: - min_mtu = 68, max_mtu = 0xFFF8 - dev->hard_header_len - t_hlen - preserve all ndo_change_mtu checks for now to prevent regressions ipv6/ip6_tunnel: - min_mtu = 68, max_mtu = 0xFFF8 - dev->hard_header_len - preserve all ndo_change_mtu checks for now to prevent regressions ipv6/ip6_vti: - min_mtu = 1280, max_mtu = 65535 - remove redundant vti6_change_mtu ipv6/sit: - min_mtu = 1280, max_mtu = 0xFFF8 - t_hlen - remove redundant ipip6_tunnel_change_mtu CC: netdev@vger.kernel.org CC: "David S. Miller" <davem@davemloft.net> CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> CC: James Morris <jmorris@namei.org> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> CC: Patrick McHardy <kaber@trash.net> Signed-off-by:
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Jarod Wilson authored
ctcm: - min_mtu = 576, max_mtu = 65527 netiucv: - min_mtu = 576, max_mtu = 65535 qeth: - min_mtu = 64, max_mtu = 65535 CC: netdev@vger.kernel.org CC: linux-s390@vger.kernel.org CC: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by:
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Jarod Wilson authored
firewire-net: - set min/max_mtu - remove fwnet_change_mtu nes: - set max_mtu - clean up nes_netdev_change_mtu xpnet: - set min/max_mtu - remove xpnet_dev_change_mtu hippi: - set min/max_mtu - remove hippi_change_mtu batman-adv: - set max_mtu - remove batadv_interface_change_mtu - initialization is a little async, not 100% certain that max_mtu is set in the optimal place, don't have hardware to test with rionet: - set min/max_mtu - remove rionet_change_mtu slip: - set min/max_mtu - streamline sl_change_mtu um/net_kern: - remove pointless ndo_change_mtu hsi/clients/ssi_protocol: - use core MTU range checking - remove now redundant ssip_pn_set_mtu ipoib: - set a default max MTU value - Note: ipoib's actual max MTU can vary, depending on if the device is in connected mode or not, so we'll just set the max_mtu value to the max possible, and let the ndo_change_mtu function continue to validate any new MTU change requests with checks for CM or not. Note that ipoib has no min_mtu set, and thus, the network core's mtu > 0 check is the only lower bounds here. mptlan: - use net core MTU range checking - remove now redundant mpt_lan_change_mtu fddi: - min_mtu = 21, max_mtu = 4470 - remove now redundant fddi_change_mtu (including export) fjes: - min_mtu = 8192, max_mtu = 65536 - The max_mtu value is actually one over IP_MAX_MTU here, but the idea is to get past the core net MTU range checks so fjes_change_mtu can validate a new MTU against what it supports (see fjes_support_mtu in fjes_hw.c) hsr: - min_mtu = 0 (calls ether_setup, max_mtu is 1500) f_phonet: - min_mtu = 6, max_mtu = 65541 u_ether: - min_mtu = 14, max_mtu = 15412 phonet/pep-gprs: - min_mtu = 576, max_mtu = 65530 - remove redundant gprs_set_mtu CC: netdev@vger.kernel.org CC: linux-rdma@vger.kernel.org CC: Stefan Richter <stefanr@s5r6.in-berlin.de> CC: Faisal Latif <faisal.latif@intel.com> CC: linux-rdma@vger.kernel.org CC: Cliff Whickman <cpw@sgi.com> CC: Robin Holt <robinmholt@gmail.com> CC: Jes Sorensen <jes@trained-monkey.org> CC: Marek Lindner <mareklindner@neomailbox.ch> CC: Simon Wunderlich <sw@simonwunderlich.de> CC: Antonio Quartulli <a@unstable.cc> CC: Sathya Prakash <sathya.prakash@broadcom.com> CC: Chaitra P B <chaitra.basappa@broadcom.com> CC: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> CC: MPT-FusionLinux.pdl@broadcom.com CC: Sebastian Reichel <sre@kernel.org> CC: Felipe Balbi <balbi@kernel.org> CC: Arvid Brodin <arvid.brodin@alten.se> CC: Remi Denis-Courmont <courmisch@gmail.com> Signed-off-by:
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Jarod Wilson authored
hyperv_net: - set min/max_mtu, per Haiyang, after rndis_filter_device_add virtio_net: - set min/max_mtu - remove virtnet_change_mtu vmxnet3: - set min/max_mtu xen-netback: - min_mtu = 0, max_mtu = 65517 xen-netfront: - min_mtu = 0, max_mtu = 65535 unisys/visor: - clean up defines a little to not clash with network core or add redundat definitions CC: netdev@vger.kernel.org CC: virtualization@lists.linux-foundation.org CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Haiyang Zhang <haiyangz@microsoft.com> CC: "Michael S. Tsirkin" <mst@redhat.com> CC: Shrikrishna Khare <skhare@vmware.com> CC: "VMware, Inc." <pv-drivers@vmware.com> CC: Wei Liu <wei.liu2@citrix.com> CC: Paul Durrant <paul.durrant@citrix.com> CC: David Kershner <david.kershner@unisys.com> Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by:
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Jarod Wilson authored
geneve: - Merge __geneve_change_mtu back into geneve_change_mtu, set max_mtu - This one isn't quite as straight-forward as others, could use some closer inspection and testing macvlan: - set min/max_mtu tun: - set min/max_mtu, remove tun_net_change_mtu vxlan: - Merge __vxlan_change_mtu back into vxlan_change_mtu - Set max_mtu to IP_MAX_MTU and retain dynamic MTU range checks in change_mtu function - This one is also not as straight-forward and could use closer inspection and testing from vxlan folks bridge: - set max_mtu of IP_MAX_MTU and retain dynamic MTU range checks in change_mtu function openvswitch: - set min/max_mtu, remove internal_dev_change_mtu - note: max_mtu wasn't checked previously, it's been set to 65535, which is the largest possible size supported sch_teql: - set min/max_mtu (note: max_mtu previously unchecked, used max of 65535) macsec: - min_mtu = 0, max_mtu = 65535 macvlan: - min_mtu = 0, max_mtu = 65535 ntb_netdev: - min_mtu = 0, max_mtu = 65535 veth: - min_mtu = 68, max_mtu = 65535 8021q: - min_mtu = 0, max_mtu = 65535 CC: netdev@vger.kernel.org CC: Nicolas Dichtel <nicolas.dichtel@6wind.com> CC: Hannes Frederic Sowa <hannes@stressinduktion.org> CC: Tom Herbert <tom@herbertland.com> CC: Daniel Borkmann <daniel@iogearbox.net> CC: Alexander Duyck <alexander.h.duyck@intel.com> CC: Paolo Abeni <pabeni@redhat.com> CC: Jiri Benc <jbenc@redhat.com> CC: WANG Cong <xiyou.wangcong@gmail.com> CC: Roopa Prabhu <roopa@cumulusnetworks.com> CC: Pravin B Shelar <pshelar@ovn.org> CC: Sabrina Dubroca <sd@queasysnail.net> CC: Patrick McHardy <kaber@trash.net> CC: Stephen Hemminger <stephen@networkplumber.org> CC: Pravin Shelar <pshelar@nicira.com> CC: Maxim Krasnyansky <maxk@qti.qualcomm.com> Signed-off-by:
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