summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2015-08-11Revert "Merge branch 'mv88e6xxx-switchdev-fdb'"David S. Miller
This reverts commit f1d5ca434413b20cd3f8c18ff2b634b7782149a5, reversing changes made to 4933d85c5173832ebd261756522095837583c458. I applied v2 instead of v3. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-11bpf: s390: Fix build error caused by the struct bpf_array member name changedKaixu Xia
There is a build error that "'struct bpf_array' has no member named 'prog'" on s390. In commit 2a36f0b92eb6 ("bpf: Make the bpf_prog_array_map more generic"), the member 'prog' of struct bpf_array is replaced by 'ptrs'. So this patch fixes it. Fixes: 2a36f0b92eb6 ("bpf: Make the bpf_prog_array_map more generic") Reported-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-11Merge branch 'thunder-acpi'David S. Miller
David Daney says: ==================== net: thunder: Add ACPI support. Change from v1: Drop PHY binding part, use fwnode_property* APIs. The first patch (1/2) rearranges the existing code a little with no functional change to get ready for the second. The second (2/2) does the actual work of adding support to extract the needed information from the ACPI tables. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-11net, thunder, bgx: Add support to get MAC address from ACPI.David Daney
Currently there is no way to get the MAC address in a firmware independent manner, so set the MAC address of the device directly from the ACPI tables. The binding agrees with the proposed standard here: http://www.uefi.org/sites/default/files/resources/nic-request-v2.pdf Based on code from: Narinder Dhillon <ndhillon@cavium.com> Tomasz Nowicki <tomasz.nowicki@linaro.org> Robert Richter <rrichter@cavium.com> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-11net: thunder: Factor out DT specific code in BGXRobert Richter
Separate DT code in preparation for follow-on ACPI integration. Based on code from: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10vxlan: fix fdb_dump index calculationAtzm Watanabe
When too many remotes are bound to an FDB entry, index may not be increased. This problem will be caused on the large scale environment that is based on the unicast default destination, for instance. Signed-off-by: Atzm Watanabe <atzm@iij.ad.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10mellanox: mlxsw: Use '%zx' to print size_t formatFabio Estevam
Use '%zx' to print size_t format in order to fix the following build warning: drivers/net/ethernet/mellanox/mlxsw/item.h:65:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type 'size_t' [-Wformat=] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10isdn: Remove reverse_bits(), use revbit8()yalin wang
This change isdn driver, remove reverse_bits() function, use the generic revbit8() function instead. Signed-off-by: yalin wang <yalin.wang2010@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10cxgb4: cleanup some indentingDan Carpenter
Add or remove some tabs so that statements line up correctly. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10dsa: Support multiple MDIO bussesAndrew Lunn
When using a cluster of switches, some topologies will have an MDIO bus per switch, not one for the whole cluster. Allow this to be represented in the device tree, by adding an optional mii-bus property at the switch level. The old platform_device method of instantiation supports this already, so only the device tree binding needs extending with an additional optional phandle. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10net: dsa: mv88e6352: Use mnemonics for EEPROM registers and bitsAndrew Lunn
Add register definitions #defines for accessing the EEPROM. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10Merge branch 'ovs-gre'David S. Miller
Pravin B Shelar says: ==================== GRE: Use flow based tunneling for OVS GRE vport. Following patches make use of new Using GRE tunnel meta data collection feature. This allows us to directly use netdev based GRE tunnel implementation. While doing so I have removed GRE demux API which were targeted for OVS. Most of GRE protocol code is now consolidated in ip_gre module. v5-v4: Fixed Kconfig dependency for vport-gre module. v3-v4: Added interface to ip-gre device to enable meta data collection. While doing this I split second patch into two patches. v2-v3: Add API to create GRE flow based device. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10gre: Remove support for sharing GRE protocol hook.Pravin B Shelar
Support for sharing GREPROTO_CISCO port was added so that OVS gre port and kernel GRE devices can co-exist. After flow-based tunneling patches OVS GRE protocol processing is completely moved to ip_gre module. so there is no need for GRE protocol hook. Following patch consolidates GRE protocol related functions into ip_gre module. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10openvswitch: Use regular GRE net_device instead of vportPravin B Shelar
Using GRE tunnel meta data collection feature, we can implement OVS GRE vport. This patch removes all of the OVS specific GRE code and make OVS use a ip_gre net_device. Minimal GRE vport is kept to handle compatibility with current userspace application. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10ip_gre: Add support to collect tunnel metadata.Pravin B Shelar
Following patch create new tunnel flag which enable tunnel metadata collection on given device. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10openvswitch: Move tunnel destroy function to oppenvswitch module.Pravin B Shelar
This function will be used in gre and geneve vport implementations. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10net: add explicit logging and stat for neighbour table overflowRick Jones
Add an explicit neighbour table overflow message (ratelimited) and statistic to make diagnosing neighbour table overflows tractable in the wild. Diagnosing a neighbour table overflow can be quite difficult in the wild because there is no explicit dmesg logged. Callers to neighbour code seem to use net_dbg_ratelimit when the neighbour call fails which means the "base message" is not emitted and the callback suppressed messages from the ratelimiting can end-up juxtaposed with unrelated messages. Further, a forced garbage collection will increment a stat on each call whether it was successful in freeing-up a table entry or not, so that statistic is only a hint. So, add a net_info_ratelimited message and explicit statistic to the neighbour code. Signed-off-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10bridge: netlink: add support for vlan_filtering attributeNikolay Aleksandrov
This patch adds the ability to toggle the vlan filtering support via netlink. Since we're already running with rtnl in .changelink() we don't need to take any additional locks. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10Merge branch 'qlcnic-enhancements'David S. Miller
Shahed Shaikh says: ==================== qlcnic: enhancements This series adds few enhancements. o Patch from Harish reorders the sequence of header files inclusion, keeping kernel's header files on top. o Firmware introduced a new feature which allows driver to increases the size of firmware dump of iSCSI function which is being collected by NIC driver. o Print buffer address which is holding a firmware dump. o Use vzalloc() instead kzalloc() for allocating large chunk of memory which will avoid potential memory allocation failure. o Add new device ID for 0x8C30 which is a 83xx series based VF function. Please apply this series to net-next. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10qlcnic: Update version to 5.3.63Shahed Shaikh
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10qlcnic: Don't use kzalloc unncecessarily for allocating large chunk of memoryShahed Shaikh
Driver allocates a large chunk of temporary buffer using kzalloc to copy FW image. As there is no real need of this memory to be physically contiguous, use vzalloc instead. Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10qlcnic: Add new VF device ID 0x8C30Shahed Shaikh
This is a 83xx series based VF device Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10qlcnic: Print firmware minidump buffer and template header addressesShahed Shaikh
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10qlcnic: Add support to enable capability to extend minidump for iSCSIShahed Shaikh
In some cases it is required to capture minidump for iSCSI functions as part of default minidump collection process. To enable this, firmware exports it's capability and driver need to enable that capability by issuing a mailbox command. With this feature, firmware can provide additional iSCSI function's minidump with smaller minidump capture mask (0x1f). Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10qlcnic: Rearrange ordering of header files inclusionHarish Patil
Include local headers files after kernel's header files. Signed-off-by: Harish Patil <harish.patil@qlogic.com> Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10net: phy: select copper mode when Marvel 88e1111 in SGMIIMadalin Bucur
For the Marvel 88e1111 PHY only two SGMII modes are available, both allowing only SGMII to copper mode (with or without clock). SGMII to fiber mode is not supported. Make sure the fiber/copper registers selector bits are cleared for selecting copper mode. Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10net: fec: fix the race between xmit and bdp reclaiming pathKevin Hao
When we transmit a fragmented skb, we may run into a race like the following scenario (assume txq->cur_tx is next to txq->dirty_tx): cpu 0 cpu 1 fec_enet_txq_submit_skb reserve a bdp for the first fragment fec_enet_txq_submit_frag_skb update the bdp for the other fragment update txq->cur_tx fec_enet_tx_queue bdp = fec_enet_get_nextdesc(txq->dirty_tx, fep, queue_id); This bdp is the bdp reserved for the first segment. Given that this bdp BD_ENET_TX_READY bit is not set and txq->cur_tx is already pointed to a bdp beyond this one. We think this is a completed bdp and try to reclaim it. update the bdp for the first segment update txq->cur_tx So we shouldn't update the txq->cur_tx until all the update to the bdps used for fragments are performed. Also add the corresponding memory barrier to guarantee that the update to the bdps, dirty_tx and cur_tx performed in the proper order. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09Merge branch 'mlxsw-fixes'David S. Miller
Jiri Pirko says: ==================== mlxsw: Couple of fixes/adjustments Ido Schimmel (5): mlxsw: Call free_netdev when removing port mlxsw: Make system port to local port mapping explicit mlxsw: Simplify mlxsw_sx_port_xmit function mlxsw: Use correct skb length when dumping payload mlxsw: Fix use-after-free bug in mlxsw_sx_port_xmit Jiri Pirko (2): mlxsw: Make pci module dependent on HAS_DMA and HAS_IOMEM mlxsw: Strip FCS from incoming packets ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Fix use-after-free bug in mlxsw_sx_port_xmitIdo Schimmel
Store the length of the skb before transmitting it and use it for stats instead of skb->len, since skb might have been freed already. This issue was discovered using the Kernel Address sanitizer (KASan). Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Use correct skb length when dumping payloadIdo Schimmel
Do not use the length of the transmitted skb (which was freed), but that of the response skb. This issue was discovered using the Kernel Address sanitizer (KASan). Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Simplify mlxsw_sx_port_xmit functionIdo Schimmel
Previously we only checked if the transmission queue is not full in the middle of the xmit function. This lead to complex logic due to the fact that sometimes we need to reallocate the headroom for our Tx header. Allow the switch driver to know if the transmission queue is not full before sending the packet and remove this complex logic. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Strip FCS from incoming packetsJiri Pirko
FCS of incoming packets is already checked by HW. Just strip it out. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Make pci module dependent on HAS_DMA and HAS_IOMEMJiri Pirko
This resolves compile errors on um-allyesconfig. Note that there are many other drivers which have the same issue. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Make system port to local port mapping explicitIdo Schimmel
System ports are unique identifiers in a multi-ASIC environment that represent all the available ports in the system. Local ports on the other hand, are unique only within the local ASIC. Since system port to local port mapping is not part of the HW-SW contract and since only single-ASIC configurations are currently supported, set an explicit 1:1 mapping by configuring the Switch System Port Record (SSPR) register. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mlxsw: Call free_netdev when removing portIdo Schimmel
When removing a port's netdevice we should also free the memory allocated by alloc_etherdev(). Do this by calling free_netdev() at the end of the teardown sequence. Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: ethernet: Fix double word "the the" in eth.cMasanari Iida
This patch fix double word "the the" in Documentation/DocBook/networking/API-eth-get-headlen.html Documentation/DocBook/networking/netdev.html Documentation/DocBook/networking.xml These files are generated from comment in source, so I have to fix comment in net/ethernet/eth.c. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: phy: add RealTek RTL8211DN phy idShaohui Xie
RTL8211DN is compatible with RTL8211E. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09mpls: Enforce payload type of traffic sent using explicit NULLRobert Shearman
RFC 4182 s2 states that if an IPv4 Explicit NULL label is the only label on the stack, then after popping the resulting packet must be treated as a IPv4 packet and forwarded based on the IPv4 header. The same is true for IPv6 Explicit NULL with an IPv6 packet following. Therefore, when installing the IPv4/IPv6 Explicit NULL label routes, add an attribute that specifies the expected payload type for use at forwarding time for determining the type of the encapsulated packet instead of inspecting the first nibble of the packet. Signed-off-by: Robert Shearman <rshearma@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09Merge branch 'bpf-perf'David S. Miller
Kaixu Xia says: ==================== bpf: Introduce the new ability of eBPF programs to access hardware PMU counter This patchset is base on the net-next: git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git commit 9dc20a649609c95ce7c5ac4282656ba627b67d49. Previous patch v6 url: https://lkml.org/lkml/2015/8/4/188 changes in V7: - rebase the whole patch set to net-next tree(9dc20a64); - split out the core perf APIs into Patch 1/5; - change the return value of function perf_event_attrs() from struct perf_event * to const struct perf_event * in Patch 1/5; - rename the function perf_event_read_internal() to perf_event_ read_local() and rewrite it in Patch 1/5; - rename the function check_func_limit() to check_map_func _compatibility() and remove the unnecessary pass pointer to a pointer in Patch 4/5; changes in V6: - make the Patch 1/4 commit message more meaning and readable; - remove the unnecessary comment in Patch 2/4 and make it clean; - declare the function perf_event_release_kernel() in include/ linux/perf_event.h to fix the build error when CONFIG_PERF_EVENTS isn't configured in Patch 2/4; - add function perf_event_attrs() to get the struct perf_event_attr in Patch 2/4. - move the related code from kernel/trace/bpf_trace.c to kernel/ events/core.c and add function perf_event_read_internal() to avoid poking inside of the event outside of perf code in Patch 3/4; - generial the func & map match-pair with an array in Patch 3/4; changes in V5: - move struct fd_array_map_ops* fd_ops to bpf_map; - move array perf event decrement refcnt function to map_free; - fix the NULL ptr of perf_event_get(); - move bpf_perf_event_read() to kernel/bpf/bpf_trace.c; - get rid of the remaining struct bpf_prog; - move the unnecessay cast on void *; changes in V4: - make the bpf_prog_array_map more generic; - fix the bug of event refcnt leak; - use more useful errno in bpf_perf_event_read(); changes in V3: - collapse V2 patches 1-3 into one; - drop the function map->ops->map_traverse_elem() and release the struct perf_event in map_free; - only allow to access bpf_perf_event_read() from programs; - update the perf_event_array_map elem via xchg(); - pass index directly to bpf_perf_event_read() instead of MAP_KEY; changes in V2: - put atomic_long_inc_not_zero() between fdget() and fdput(); - limit the event type to PERF_TYPE_RAW and PERF_TYPE_HARDWARE; - Only read the event counter on current CPU or on current process; - add new map type BPF_MAP_TYPE_PERF_EVENT_ARRAY to store the pointer to the struct perf_event; - according to the perf_event_map_fd and key, the function bpf_perf_event_read() can get the Hardware PMU counter value; Patch 5/5 is a simple example and shows how to use this new eBPF programs ability. The PMU counter data can be found in /sys/kernel/debug/tracing/trace(trace_pipe).(the cycles PMU value when 'kprobe/sys_write' sampling) $ cat /sys/kernel/debug/tracing/trace_pipe $ ./tracex6 ... syslog-ng-548 [000] d..1 76.905673: : CPU-0 681765271 syslog-ng-548 [000] d..1 76.905690: : CPU-0 681787855 syslog-ng-548 [000] d..1 76.905707: : CPU-0 681810504 syslog-ng-548 [000] d..1 76.905725: : CPU-0 681834771 syslog-ng-548 [000] d..1 76.905745: : CPU-0 681859519 syslog-ng-548 [000] d..1 76.905766: : CPU-0 681890419 syslog-ng-548 [000] d..1 76.905783: : CPU-0 681914045 syslog-ng-548 [000] d..1 76.905800: : CPU-0 681935950 syslog-ng-548 [000] d..1 76.905816: : CPU-0 681958299 ls-690 [005] d..1 82.241308: : CPU-5 3138451 sh-691 [004] d..1 82.244570: : CPU-4 7324988 <...>-699 [007] d..1 99.961387: : CPU-7 3194027 <...>-695 [003] d..1 99.961474: : CPU-3 288901 <...>-695 [003] d..1 99.961541: : CPU-3 383145 <...>-695 [003] d..1 99.961591: : CPU-3 450365 <...>-695 [003] d..1 99.961639: : CPU-3 515751 <...>-695 [003] d..1 99.961686: : CPU-3 579047 ... The detail of patches is as follow: Patch 1/5 add the necessary core perf APIs perf_event_attrs(), perf_event_get(),perf_event_read_local() when accessing events counters in eBPF programs Patch 2/5 rewrites part of the bpf_prog_array map code and make it more generic; Patch 3/5 introduces a new bpf map type. This map only stores the pointer to struct perf_event; Patch 4/5 implements function bpf_perf_event_read() that get the selected hardware PMU conuter; Patch 5/5 gives a simple example. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09samples/bpf: example of get selected PMU counter valueKaixu Xia
This is a simple example and shows how to use the new ability to get the selected Hardware PMU counter value. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09bpf: Implement function bpf_perf_event_read() that get the selected hardware ↵Kaixu Xia
PMU conuter According to the perf_event_map_fd and index, the function bpf_perf_event_read() can convert the corresponding map value to the pointer to struct perf_event and return the Hardware PMU counter value. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09bpf: Add new bpf map type to store the pointer to struct perf_eventKaixu Xia
Introduce a new bpf map type 'BPF_MAP_TYPE_PERF_EVENT_ARRAY'. This map only stores the pointer to struct perf_event. The user space event FDs from perf_event_open() syscall are converted to the pointer to struct perf_event and stored in map. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09bpf: Make the bpf_prog_array_map more genericWang Nan
All the map backends are of generic nature. In order to avoid adding much special code into the eBPF core, rewrite part of the bpf_prog_array map code and make it more generic. So the new perf_event_array map type can reuse most of code with bpf_prog_array map and add fewer lines of special code. Signed-off-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09perf: add the necessary core perf APIs when accessing events counters in ↵Kaixu Xia
eBPF programs This patch add three core perf APIs: - perf_event_attrs(): export the struct perf_event_attr from struct perf_event; - perf_event_get(): get the struct perf_event from the given fd; - perf_event_read_local(): read the events counters active on the current CPU; These APIs are needed when accessing events counters in eBPF programs. The API perf_event_read_local() comes from Peter and I add the corresponding SOB. Signed-off-by: Kaixu Xia <xiakaixu@huawei.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09Merge branch 'mv88e6xxx-switchdev-fdb'David S. Miller
Vivien Didelot says: ==================== net: dsa: mv88e6xxx: support switchdev FDB objects This patchset refactors the DSA and mv88e6xxx code to use the switchdev FDB objects. The first two patches add minor but necessary changes to switchdev, the third one implements the switchdev glue in DSA for FDB routines, and the remaining ones refactor the FDB access functions in the mv88e6xxx code. Below is an usage example (ports 0-2 belongs to br0, ports 3-4 belongs to br1): # bridge fdb add 3c:97:0e:11:30:6e dev swp2 # bridge fdb add 3c:97:0e:11:40:78 dev swp3 # bridge fdb add 3c:97:0e:11:50:86 dev swp4 # bridge fdb del 3c:97:0e:11:40:78 dev swp3 # bridge fdb 01:00:5e:00:00:01 dev eth0 self permanent 01:00:5e:00:00:01 dev eth1 self permanent 00:50:d2:10:78:15 dev swp0 master br0 permanent 3c:97:0e:11:30:6e dev swp2 self static 00:50:d2:10:78:15 dev swp3 master br1 permanent 3c:97:0e:11:50:86 dev swp4 self static # cat /sys/kernel/debug/dsa0/atu # DB T/P Vec State Addr # 001 Port 004 e 3c:97:0e:11:30:6e # 004 Port 010 e 3c:97:0e:11:50:86 For the 88E6xxx switches, FIDs 1 to num_ports will be reserved for non-bridged ports and bridge groups, and the remaining will be later used by VLANs. This change is necessary to welcome the support for hardware VLANs (which will follow soon). Changes in v2: - remove ndo_bridge_{get,set,del}link from switchdev/DSA glue code - use ether_addr_copy instead of memcpy for MAC addresses - constify MAC address in port_fdb_{add,del} - split the mv88e6xxx code refactoring into several patches ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: dsa: mv88e6xxx: rework FDB add/del operationsVivien Didelot
Add a low level function for the ATU Load operation, and provide FDB add and delete wrappers functions. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: dsa: mv88e6xxx: rework FDB getnext operationVivien Didelot
This commit adds a low level _mv88e6xxx_atu_getnext function and helpers to rewrite the mv88e6xxx_port_fdb_getnext operation. A mv88e6xxx_atu_entry structure is added for convenient access to the hardware, and GLOBAL_ATU_FID is defined instead of the raw 0x01 value. The previous implementation did not handle the eventual trunk mapping. If the related bit is set, then the ATU data register would contain the trunk ID, and not the port vector. Check this in the FDB getnext operation and do not handle it (yet). Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: dsa: mv88e6xxx: rename ATU MAC accessorsVivien Didelot
Rename the __mv88e6xxx_{read,write}_addr functions to more explicit _mv88e6xxx_atu_mac_{read,write} functions, which also respect the single underscore convention used in the file (meaning SMI lock must be held). In the meantime, define their MAC address parameters as an array of ETH_ALEN bytes instead of a char pointer. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: dsa: mv88e6xxx: extend fid maskVivien Didelot
The driver currently manages one FID per port (or bridge group), with a mask of DSA_MAX_PORTS bits, where 0 means that the FID is in use. The Marvell 88E6xxx switches support up to 4094 FIDs (from 1 to 0xfff; FID 0 means that multiple address databases are not being used). This patch changes the fid_mask for an fid_bitmap of 4096 bits. >From now on, FIDs 1 to num_ports are reserved for non-bridged ports and bridge groups (a bridge group gets the FID of its first member). The remaining bits will be reserved for VLAN entries. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-09net: dsa: add support for switchdev FDB objectsVivien Didelot
Remove the fdb_{add,del,getnext} function pointer in favor of new port_fdb_{add,del,getnext}. Implement the switchdev_port_obj_{add,del,dump} functions in DSA to support the SWITCHDEV_OBJ_PORT_FDB objects. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.0.4) at 2024-10-05 21:11:53 +0000