- 18 Jul, 2017 28 commits
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Arkadi Sharshevsky authored
Before we can start using IPv6, we need to trap certain control packets to the CPU. Among others, these include Neighbour Discovery, DHCP and neighbour misses. Signed-off-by:
Arkadi Sharshevsky <arkadis@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>
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Arkadi Sharshevsky authored
Enable IPv6 and IPv6 forwarding on router interfaces (RIFs), so that they will be able to receive and forward IPv6 traffic. Signed-off-by:
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Arkadi Sharshevsky authored
Before we add IPv6 constructs like traps and router interfaces, we first need to enable IPv6 routing in the device. Signed-off-by:
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David S. Miller authored
Florian Westphal says: ==================== xfrm: remove flow cache After RCU-ification of ipsec packet path there are no major scalability issues anymore without flow cache. We still incur a performance hit, which comes mostly from the extra xfrm dst allocation/freeing. The last patch in the series adds a simple percpu cache to avoid the extra allocation if a packet matched the same policies as last one. The main concern with this is that we will see performance drops, especially with large numbers of policies/SAs. However, during hallway discussions at nfws 2017 it seemed the issues with flow caching outweight the removal downsides, and that it might be best to just 'remove it' and see where the practical issues (if any) will appear. It should now be possible to also remove the genid member in the policies as we don't hold bundles for prolonged time anymore, but I think this change is controversial (and intrusive) enough as-is, so defer that to a later point in time. Changes since last rfc: - fix build failures due to implicit interrupt.h includes - rework last patch (pcpu cache): * avoid xchg() * check policies for walk.dead = 1 instead of more costly bundle_ok(). * flush pcpu bundles when sa/policies get removed, to allow module references to go away (suggested by Ilan Tayari) ==================== Signed-off-by: -
Florian Westphal authored
retain last used xfrm_dst in a pcpu cache. On next request, reuse this dst if the policies are the same. The cache will not help with strict RR workloads as there is no hit. The cache packet-path part is reasonably small, the notifier part is needed so we do not add long hangs when a device is dismantled but some pcpu xdst still holds a reference, there are also calls to the flush operation when userspace deletes SAs so modules can be removed (there is no hit. We need to run the dst_release on the correct cpu to avoid races with packet path. This is done by adding a work_struct for each cpu and then doing the actual test/release on each affected cpu via schedule_work_on(). Test results using 4 network namespaces and null encryption: ns1 ns2 -> ns3 -> ns4 netperf -> xfrm/null enc -> xfrm/null dec -> netserver what TCP_STREAM UDP_STREAM UDP_RR Flow cache: 14644.61 294.35 327231.64 No flow cache: 14349.81 242.64 202301.72 Pcpu cache: 14629.70 292.21 205595.22 UDP tests used 64byte packets, tests ran for one minute each, value is average over ten iterations. 'Flow cache' is 'net-next', 'No flow cache' is net-next plus this series but without this patch. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
After rcu conversions performance degradation in forward tests isn't that noticeable anymore. See next patch for some numbers. A followup patcg could then also remove genid from the policies as we do not cache bundles anymore. Signed-off-by:
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Florian Westphal authored
This allows to remove flow cache object embedded in struct xfrm_dst. Signed-off-by:
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Florian Westphal authored
This removes the wrapper and renames the __xfrm_policy_lookup variant to get rid of another place that used flow cache objects. Signed-off-by:
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Florian Westphal authored
XFRM_POLICY_IN/OUT/FWD are identical to FLOW_DIR_*, so gcc already removed this function as its just returns the argument. Again, no code change. Signed-off-by:
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Florian Westphal authored
after previous change oldflo and xdst are always NULL. These branches were already removed by gcc, this doesn't change code. Signed-off-by:
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Florian Westphal authored
Instead of consulting flow cache, call the xfrm bundle/policy lookup functions directly. This pretends the flow cache had no entry. This helps to gradually remove flow cache integration, followup commit will remove the dead code that this change adds. Signed-off-by:
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Florian Westphal authored
revert c386578f ("xfrm: Let the flowcache handle its size by default."). Once we remove flow cache, we don't have a flow cache limit anymore. We must not allow (virtually) unlimited allocations of xfrm dst entries. Revert back to the old xfrm dst gc limits. Signed-off-by:
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Florian Westphal authored
flow cache is removed in next commit. Signed-off-by:
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Florian Westphal authored
these drivers use tasklets or irq apis, but don't include interrupt.h. Once flow cache is removed the implicit interrupt.h inclusion goes away which will break the build. Signed-off-by:
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David S. Miller authored
Vivien Didelot says: ==================== net: dsa: mv88e6xxx: cleanup capabilities This patch series removes the remaining capabilities as well as the flags bitmap in the info structures. Most of them are turned into ops, or new info members. There is no mv88e6xxx_cap enum or bitmap flags anymore, only mv88e6xxx_info and mv88e6xxx_ops structures. While reviewing and documenting the related G2 registers, fix a few inconsistencies: 88E6185 has no interrupt in G2 and 88E6390 has a POT. Except these two adjustments, there is no functional changes. ==================== Signed-off-by: -
Vivien Didelot authored
Instead of relying on a bitmap flag, add a new multi_chip info flag to describe the presence of the indirect SMI access though the two device registers 0x0 and 0x1. All remaining capabilities and flags are now unused. Remove the mv88e6xxx_cap enum and the info flags bitmaps. Signed-off-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Vivien Didelot authored
The 88E6352 family supports Energy Detect and has one bit for Sense and one bit for periodically transmit NLP (Energy Detect+TM). The 88E6390 family adds another bit to distinguish Auto or SW wake-up. Chips supporting EEE all have an EEE Enabled bit in the Port Status Register. This patch adds new ops for the PHY Energy Detect accesses. This also allows us to get rid of the MV88E6XXX_FLAG_EEE flag. Signed-off-by:
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Vivien Didelot authored
Similarly to global1_addr, add a global2_addr member in the info structure to describe the presence of the Global 2 Registers. This allows us to get rid of the MV88E6XXX_FLAG_GLOBAL2 flag. Signed-off-by:
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Vivien Didelot authored
Add a pot_clear operation to clear the Priority Override Table and wrap its call into a mv88e6xxx_pot_setup helper. This allows us to get rid of the MV88E6XXX_FLAG_G2_POT flag. Signed-off-by:
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Vivien Didelot authored
The 88E6390 family clear the Priority Override Table the same way as 88E6352, thus add MV88E6XXX_FLAG_G2_POT to MV88E6XXX_FLAGS_FAMILY_6390. Signed-off-by:
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Vivien Didelot authored
The 88E6185 family only has one 16-bit register to mark the 16 802.1D reserved multicast addresses in the range of 01:80:C2:00:00:0x as MGMT. The 88E6352 family also has one 16-bit register to mark the 16 GARP reserved multicast addresses in the range of 01:80:C2:00:00:2x as MGMT. Split the existing mv88e6095 prefixed mgmt_rsvd2cpu operation into two distinct mv88e6185 and mv88e6352 prefixed operations, and wrap its call into a mv88e6xxx_rsvd2cpu_setup helper. This allows us to also get rid of the MV88E6XXX_CAP_G2_MGMT_EN_* flags. Signed-off-by:
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Vivien Didelot authored
Similarly to g1_irqs, add a g2_irqs member to the info structure to indicates the presence of the Global 2 Interrupt Source and Mask registers. At the same time, provide helpers and document the registers since they differ a bit between 88E6352 and 88E6390 families. This allows us to get rid of the MV88E6XXX_FLAG_G2_INT flag. Signed-off-by:
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Vivien Didelot authored
The 88E6185 family has no Global 2 Interrupt Source or Mask registers. Remove the MV88E6XXX_FLAG_G2_INT from MV88E6XXX_FLAGS_FAMILY_6185. Signed-off-by:
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Vivien Didelot authored
Remove the forgotten capabilities and related flags from previous cleanups. Signed-off-by:
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Vivien Didelot authored
MV88E6XXX_FAMILY_6321 is undefined, 88E6321's family is 88E6320, fix this. Signed-off-by:
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Vivien Didelot authored
We don't support LED control yet, remove its register definition. Signed-off-by:
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Vivien Didelot authored
phy.c does not need to include the DSA public header. Remove it. Signed-off-by:
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John Fastabend authored
Initial patches missed case with CONFIG_BPF_SYSCALL not set. Fixes: 11393cc9 ("xdp: Add batching support to redirect map") Fixes: 97f91a7c ("bpf: add bpf_redirect_map helper routine") Signed-off-by:
John Fastabend <john.fastabend@gmail.com> Signed-off-by:
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- 17 Jul, 2017 12 commits
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Fabio Estevam authored
The gpiod API checks for NULL descriptors, so there is no need to duplicate the check in the driver. Signed-off-by:
Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by:
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Andy Gospodarek authored
When testing with a driver that has both native and generic redirect support: $ sudo ./samples/bpf/xdp_redirect -N 5 6 input: 5 output: 6 ifindex 6: 4961879 pkt/s ifindex 6: 6391319 pkt/s ifindex 6: 6419468 pkt/s $ sudo ./samples/bpf/xdp_redirect -S 5 6 input: 5 output: 6 ifindex 6: 1845435 pkt/s ifindex 6: 3882850 pkt/s ifindex 6: 3893974 pkt/s $ sudo ./samples/bpf/xdp_redirect_map -N 5 6 input: 5 output: 6 map[0] (vports) = 4, map[1] (map) = 5, map[2] (count) = 0 ifindex 6: 2207374 pkt/s ifindex 6: 6212869 pkt/s ifindex 6: 6286515 pkt/s $ sudo ./samples/bpf/xdp_redirect_map -S 5 6 input: 5 output: 6 map[0] (vports) = 4, map[1] (map) = 5, map[2] (count) = 0 ifindex 6: 5052528 pkt/s ifindex 6: 5736631 pkt/s ifindex 6: 5739962 pkt/s Signed-off-by:
Andy Gospodarek <andy@greyhouse.net> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 5113 384 0 5497 1579 drivers/net/ethernet/ec_bhf.o File size After adding 'const': text data bss dec hex filename 5177 320 0 5497 1579 drivers/net/ethernet/ec_bhf.o Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
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Arvind Yadav authored
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 791 336 0 1127 467 net/ethernet/cadence/macb_pci.o File size After adding 'const': text data bss dec hex filename 855 272 0 1127 467 net/ethernet/cadence/macb_pci.o Signed-off-by: -
Florian Westphal authored
It was added for netlink mmap tx, there are no callers in the tree. The commit also added a check for skb->head != NULL in kfree_skb path, remove that too -- all skbs ought to have skb->head set. Signed-off-by:
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David S. Miller authored
David S. Miller says: ==================== net: Remove UDP Fragmentation Offload support This is a patch series, based upon some discussions with various developers, that removes UFO offloading. Very few devices support this operation, it's usefullness is quesitonable at best, and it adds a non-trivial amount of complexity to our data paths. v2: Delete more code thanks to feedback from Willem. ==================== Signed-off-by: -
David S. Miller authored
No longer used. Signed-off-by: -
David S. Miller authored
Rename udp{4,6}_ufo_fragment() to udp{4,6}_tunnel_segment() and only handle tunnel segmentation. Signed-off-by: -
David S. Miller authored
Such packets are no longer possible. Signed-off-by: -
David S. Miller authored
Signed-off-by: -
David S. Miller authored
It is going away. Signed-off-by: -
David S. Miller authored
It is going away. Signed-off-by:
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