- 27 Aug, 2016 9 commits
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Richard Alpe authored
This patch introduces UDP replicast. A concept where we emulate multicast by sending multiple unicast messages to configured peers. The purpose of replicast is mainly to be able to use TIPC in cloud environments where IP multicast is disabled. Using replicas to unicast multicast messages is costly as we have to copy each skb and send the copies individually. Signed-off-by:
Richard Alpe <richard.alpe@ericsson.com> Reviewed-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Richard Alpe authored
Add a function to check if a tipc UDP media address is a multicast address or not. This is a purely cosmetic change. Signed-off-by:
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Richard Alpe authored
Split the UDP send function into two. One callback that prepares the skb and one transmit function that sends the skb. This will come in handy in later patches, when we introduce UDP replicast. Signed-off-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
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Richard Alpe authored
Split the UDP netlink parse function so that it only parses one netlink attribute at the time. This makes the parse function more generic and allow future UDP API functions to use it for parsing. Signed-off-by:
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Florian Fainelli authored
And while at it, remove the unecessary writing of zeroes to the CPU_MASK_CLEAR register since it has no functional use. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Tobias Regnery authored
Add tso/tso6 support to the alx driver. Based on information from the downstream driver at github.com/qca/alx Signed-off-by:
Tobias Regnery <tobias.regnery@gmail.com> Signed-off-by:
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David S. Miller authored
Nelson Chang says: ==================== net: ethernet: mediatek: modify to use the PDMA for Ethernet RX This series have some modifications and refines to support Ethernet RX by the PDMA. changes since v4: - Remove the redundant OR operation in mtk_hw_init() changes since v3: - Add GDM hardware settings to send packets to PDMA for RX changes since v2: - Fix the bugs of PDMA cpu index and interrupt settings in mtk_poll_rx() changes since v1: - Modify to use the PDMA instead of the QDMA for Ethernet RX ==================== Signed-off-by: -
Nelson Chang authored
Because we change to use the PDMA as the Ethernet RX DMA engine, the patch modifies to set GDM to send packets to PDMA for RX. Acked-by:
John Crispin <john@phrozen.org> Signed-off-by:
Nelson Chang <nelson.chang@mediatek.com> Signed-off-by:
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Nelson Chang authored
Because the PDMA has richer features than the QDMA for Ethernet RX (such as multiple RX rings, HW LRO, etc.), the patch modifies to use the PDMA to handle Ethernet RX. Acked-by:
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- 26 Aug, 2016 17 commits
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David S. Miller authored
Florian Fainelli says: ==================== net: dsa: Make bcm_sf2 utilize b53_common This patch series makes the bcm_sf2 driver utilize a large number of the core functions offered by the b53_common driver since the SWITCH_CORE registers are mostly register compatible with the switches driven by b53_common. In order to accomplish that, we just override the dsa_driver_ops callbacks that we need to. There are still integration specific logic from the bcm_sf2 that we cannot absorb into b53_common because it is just not there, mostly in the area of link management and power management, but most of the features are within b53_common now: VLAN, FDB, bridge Along the process, we also improve support for the BCM58xx SoCs, since those also have the same version of the switching IP that 7445 has (for which bcm_sf2 was developed). Changes in v3: - rebase against 145dd5f9 ("net: flush the softnet backlog in process context") Changes in v2: - rebased against "net: dsa: rename switch operations structure" ==================== Signed-off-by:
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Florian Fainelli authored
Now that we are using b53_common for most VLAN, FDB and bridge operations, delete all the redundant code that we had in bcm_sf2.c to keep only the integration specific logic that we have to deal with: power management, link management and the external interfaces (RGMII, MDIO). Signed-off-by:
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Florian Fainelli authored
The Broadcom Starfighter2 is almost entirely register compatible with B53, yet for historical reasons came up first in the tree and is now being updated to utilize b53_common.c to the fullest extent possible. A few things need to be adjusted to allow that: - the switch "core" registers currently operate on a 32-bit address, whereas b53 passes a page + reg pair to offset from, so we need to convert that, thankfully there is a generic formula to do that - the link managemenent is not self contained with the B53/CORE register set, but instead is in the SWITCH_REG block which is part of the integration glue logic, so we keep that entirely custom here because this really is part of the existing bcm_sf2 implementation - there are additional power management constraints on the port's memories that make us keep the port_enable/disable callbacks custom for now, also, we support tagging whereas b53_common does not support that yet All the VLAN and bridge code is entirely identical though so, avoid duplicating it. Other things will be migrated in the future like EEE and possibly Wake-on-LAN. Signed-off-by:
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Florian Fainelli authored
In order to migrate the bcm_sf2 driver over to the b53 driver for most VLAN/FDB/bridge operations, we need to add support for the "join all VLANs" register and behavior which allows us to make a given port join all VLANs and avoid setting specific VLAN entries when it is leaving the bridge. Signed-off-by:
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Florian Fainelli authored
The 58xx and 7445 chips use the Starfighter2 code, define its MIB layout and introduce a helper function: is58xx() which checks for both of these IDs for now. Signed-off-by:
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Florian Fainelli authored
Allocate a device entry for the Broadcom BCM7445 integrated switch currently backed by bcm_sf2.c. Since this is the latest generation, it has 4 ARL entries, 4K VLANs and uses Port 8 for the CPU/IMP port. Signed-off-by:
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Florian Fainelli authored
In order to allow drivers to override specific dsa_switch_driver callbacks, initialize ds->ops to b53_switch_ops earlier, which avoids having to expose this structure to glue drivers. Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw: Introduce support for offload forward mark Ido says: This patchset enables the forwarding of certain control packets by the device instead of relying on the CPU to do the forwarding. The first two patches simplify the current switchdev offload forward infrastructure and make it usable for stacked devices. This is done by moving the packet and port marking to the bridge driver instead of the switch driver. Patches 3-5 add the mlxsw specific bits to support the forward mark. ==================== Signed-off-by: -
Ido Schimmel authored
Instead of trapping certain packets to the CPU and then relying on it to flood them we can instead make the device mirror them. The following packet types are mirrored: * DHCP: Broadcast packets that should be flooded by the device, but also trapped in case CPU is running the DHCP server. * IGMP query: Multicast packets that need to be forwarded to other bridge ports, but also trapped so that receiving netdev will be marked as a router port by the bridge driver. * ARP request: Broadcast packets that should be forwarded to other bridge ports, but also trapped in case requested IP is of the local machine. * ARP response: Unicast packets that should be forwarded by the bridge but also trapped in case response is directed at us. Set the trap action of such packets to mirror and mark them using 'offload_fwd_mark' to prevent the bridge driver from forwarding them itself. Note that OSPF packets are also marked despite their action being trap. The reason for this is that the device traps such packets in the pipeline after they were already flooded. Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Ido Schimmel authored
Up until now we only trapped packets to CPU, but we are going to allow some packets to be mirrored (trap & forward) to CPU. Extend the Rx listener with 'action' member. Signed-off-by:
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Ido Schimmel authored
Instead of copying & pasting the same struct initialization for every Rx listener, just use a macro. Signed-off-by:
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Ido Schimmel authored
switchdev_port_fwd_mark_set() is used to set the 'offload_fwd_mark' of port netdevs so that packets being flooded by the device won't be flooded twice. It works by assigning a unique identifier (the ifindex of the first bridge port) to bridge ports sharing the same parent ID. This prevents packets from being flooded twice by the same switch, but will flood packets through bridge ports belonging to a different switch. This method is problematic when stacked devices are taken into account, such as VLANs. In such cases, a physical port netdev can have upper devices being members in two different bridges, thus requiring two different 'offload_fwd_mark's to be configured on the port netdev, which is impossible. The main problem is that packet and netdev marking is performed at the physical netdev level, whereas flooding occurs between bridge ports, which are not necessarily port netdevs. Instead, packet and netdev marking should really be done in the bridge driver with the switch driver only telling it which packets it already forwarded. The bridge driver will mark such packets using the mark assigned to the ingress bridge port and will prevent the packet from being forwarded through any bridge port sharing the same mark (i.e. having the same parent ID). Remove the current switchdev 'offload_fwd_mark' implementation and instead implement the proposed method. In addition, make rocker - the sole user of the mark - use the proposed method. Signed-off-by:
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Ido Schimmel authored
switchdev_port_same_parent_id() currently expects port netdevs, but we need it to support stacked devices in the next patch, so drop the NO_RECURSE flag. Signed-off-by:
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Ivan Vecera authored
Remove unused and useless priv_size member from struct devlink_ops. Cc: Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ivan Vecera <ivecera@redhat.com> Acked-by:
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Paolo Abeni authored
Currently in process_backlog(), the process_queue dequeuing is performed with local IRQ disabled, to protect against flush_backlog(), which runs in hard IRQ context. This patch moves the flush operation to a work queue and runs the callback with bottom half disabled to protect the process_queue against dequeuing. Since process_queue is now always manipulated in bottom half context, the irq disable/enable pair around the dequeue operation are removed. To keep the flush time as low as possible, the flush works are scheduled on all online cpu simultaneously, using the high priority work-queue and statically allocated, per cpu, work structs. Overall this change increases the time required to destroy a device to improve slightly the packets reinjection performances. Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Nikolay Aleksandrov authored
When I added support to export the vlan entry flags via xstats I forgot to add support for the pvid since it is manually matched, so check if the entry matches the vlan_group's pvid and set the flag appropriately. Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by:
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Xin Long authored
Commit b17c7069 ("loopback: sctp: add NETIF_F_SCTP_CSUM to device features") added NETIF_F_SCTP_CRC to device features for lo device to improve the performance of sctp over lo. This patch is to add NETIF_F_SCTP_CRC to device features for veth to improve the performance of sctp over veth. Before this patch: ip netns exec cs_client netperf -H 10.167.12.2 -t SCTP_STREAM -- -m 10K Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 212992 212992 10240 10.00 1117.16 After this patch: ip netns exec cs_client netperf -H 10.167.12.2 -t SCTP_STREAM -- -m 10K Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 212992 212992 10240 10.20 1415.22 Tested-by:
Li Shuang <tjlishuang@yeah.net> Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
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- 25 Aug, 2016 10 commits
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Florian Fainelli authored
Since we keep shadow copies of which interrupt sources are enabled through the intrl2_*_mask_{set,clear} macros, make sure that the ordering in which we do these two operations: update the copy, then unmask the register is correct. This is not currently a problem because we actually do not use them, but we will in a subsequent patch optimizing register accesses, so better be safe here. Fixes: 80105bef ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver") Signed-off-by: -
Eric Dumazet authored
per_cpu_inc() is faster (at least on x86) than per_cpu_ptr(xxx)++; Signed-off-by:
John Fastabend <john.r.fastabend@intel.com> Signed-off-by:
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Eric Dumazet authored
Adds SNMP counter for drops caused by MD5 mismatches. The current syslog might help, but a counter is more precise and helps monitoring. Signed-off-by:
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Eric Dumazet authored
TCP MD5 mismatches do increment sk_drops counter in all states but SYN_RECV. This is very unlikely to happen in the real world, but worth adding to help diagnostics. We increase the parent (listener) sk_drops. Signed-off-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Wei Yongjun authored
Fixes the following sparse warning: drivers/net/vmxnet3/vmxnet3_drv.c:1645:1: warning: symbol 'vmxnet3_rq_destroy_all_rxdataring' was not declared. Should it be static? Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
Shrikrishna Khare <skhare@vmware.com> Signed-off-by:
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Wei Yongjun authored
Fix to return error code -ENOMEM from the dma_map_single error handling case instead of 0, as done elsewhere in this function. Fixes: 032c5e82 ("Driver for IBM System i/p VNIC protocol") Signed-off-by:
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Wei Yongjun authored
Remove an open coded simple_open() function and replace file operations references to the function with simple_open() instead. Generated by: scripts/coccinelle/api/simple_open.cocci Signed-off-by:
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Lorenzo Colitti authored
This allows a privileged process to filter by socket mark when dumping sockets via INET_DIAG_BY_FAMILY. This is useful on systems that use mark-based routing such as Android. The ability to filter socket marks requires CAP_NET_ADMIN, which is consistent with other privileged operations allowed by the SOCK_DIAG interface such as the ability to destroy sockets and the ability to inspect BPF filters attached to packet sockets. Tested: https://android-review.googlesource.com/261350Signed-off-by:
Lorenzo Colitti <lorenzo@google.com> Acked-by:
David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
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Lorenzo Colitti authored
This simplifies the code a bit and also allows inet_diag_bc_audit to send to userspace an error that isn't EINVAL. Signed-off-by:
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Vivien Didelot authored
Now that the dsa_switch_driver structure contains only function pointers as it is supposed to, rename it to the more appropriate dsa_switch_ops, uniformly to any other operations structure in the kernel. No functional changes here, basically just the result of something like: s/dsa_switch_driver *drv/dsa_switch_ops *ops/g However keep the {un,}register_switch_driver functions and their dsa_switch_drivers list as is, since they represent the -- likely to be deprecated soon -- legacy DSA registration framework. In the meantime, also fix the following checks from checkpatch.pl to make it happy with this patch: CHECK: Comparison to NULL could be written "!ops" #403: FILE: net/dsa/dsa.c:470: + if (ops == NULL) { CHECK: Comparison to NULL could be written "ds->ops->get_strings" #773: FILE: net/dsa/slave.c:697: + if (ds->ops->get_strings != NULL) CHECK: Comparison to NULL could be written "ds->ops->get_ethtool_stats" #824: FILE: net/dsa/slave.c:785: + if (ds->ops->get_ethtool_stats != NULL) CHECK: Comparison to NULL could be written "ds->ops->get_sset_count" #835: FILE: net/dsa/slave.c:798: + if (ds->ops->get_sset_count != NULL) total: 0 errors, 0 warnings, 4 checks, 784 lines checked Signed-off-by:Vivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by:
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- 24 Aug, 2016 4 commits
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Yuval Mintz authored
When ndo_set_rx_mode() is called for bnx2x, as part of process of configuring the new MAC address filters [both unicast & multicast] driver begins by flushing the existing configuration and then iterating over the network device's list of addresses and configures those instead. This has the side-effect of creating a short gap where traffic wouldn't be properly classified, as no filters are configured in HW. While for unicasts this is rather insignificant [as unicast MACs don't frequently change while interface is actually running], for multicast traffic it does pose an issue as there are multicast-based networks where new multicast groups would constantly be removed and added. This patch tries to remedy this [at least for the newer adapters] - Instead of flushing & reconfiguring all existing multicast filters, the driver would instead create the approximate hash match that would result from the required filters. It would then compare it against the currently configured approximate hash match, and only add and remove the delta between those. Signed-off-by:
Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by:
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David S. Miller authored
Merge tag 'rxrpc-rewrite-20160824-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs David Howells says: ==================== rxrpc: Add better client conn management strategy These two patches add a better client connection management strategy. They need to be applied on top of the just-posted fixes. (1) Duplicate the connection list and separate out procfs iteration from garbage collection. This is necessary for the next patch as with that client connections no longer appear on a single list and may not appear on a list at all - and really don't want to be exposed to the old garbage collector. (Note that client conns aren't left dangling, they're also in a tree rooted in the local endpoint so that they can be found by a user wanting to make a new client call. Service conns do not appear in this tree.) (2) Implement a better lifetime management and garbage collection strategy for client connections. In this, a client connection can be in one of five cache states (inactive, waiting, active, culled and idle). Limits are set on the number of client conns that may be active at any one time and makes users wait if they want to start a new call when there isn't capacity available. To make capacity available, active and idle connections can be culled, after a short delay (to allow for retransmission). The delay is reduced if the capacity exceeds a tunable threshold. If there is spare capacity, client conns are permitted to hang around a fair bit longer (tunable) so as to allow reuse of negotiated security contexts. After this patch, the client conn strategy is separate from that of service conns (which continues to use the old code for the moment). This difference in strategy is because the client side retains control over when it allows a connection to become active, whereas the service side has no control over when it sees a new connection or a new call on an old connection. ==================== Signed-off-by:
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David S. Miller authored
Merge tag 'rxrpc-rewrite-20160824-1' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs David Howells says: ==================== rxrpc: More fixes Here are a couple of fix patches: (1) Fix the conn-based retransmission patch posted yesterday. This breaks if it actually has to retransmit. However, it seems the likelihood of this happening is really low, despite the server I'm testing against being located >3000 miles away, and sometime of the time it's handled in the call background processor before we manage to disconnect the call - hence why I didn't spot it. (2) /proc/net/rxrpc_calls can cause a crash it accessed whilst a call is being torn down. The window of opportunity is pretty small, however, as calls don't stay in this state for long. ==================== Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== mlxsw: Offload FDB learning configuration Ido says: This patchset addresses two long standing issues in the mlxsw driver concerning FDB learning. Patch 1 limits the number of FDB records processed by the driver in a single session. This is useful in situations in which many new records need to be processed, thereby causing the RTNL mutex to be held for long periods of time. Patches 2-6 offload the learning configuration (on / off) of bridge ports to the device instead of having the driver decide whether a record needs to be learned or not. The last patch is fallout and removes configuration no longer necessary after the first patches are applied. ==================== Signed-off-by:
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