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2020-05-01net: dsa: b53: Remove is_static argument to b53_read_op()Florian Fainelli1-3/+3
This argument is not used. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01net: dsa: b53: Bound check ARL searchesFlorian Fainelli2-1/+6
ARL searches are done by reading two ARL entries at a time, do not cap the search at 1024 which would only limit us to half of the possible ARL capacity, but use b53_max_arl_entries() instead which does the right multiplication between bins and indexes. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01net: dsa: b53: Provide number of ARL bucketsFlorian Fainelli2-0/+22
In preparation for doing proper upper bound checking of FDB/MDB entries being added to the ARL, provide the number of ARL buckets for each switch chip we support. All chips have 1024 buckets, except 7278 which has only 256. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01net: dsa: b53: Rename num_arl_entries to num_arl_binsFlorian Fainelli2-27/+27
The variable currently holds the number of ARL bins per ARL buckets, which is different from the number of ARL entries which would be bins times buckets. We will be adding a num_arl_buckets in a subsequent patch so get variables straight now. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: add check for invalid parameter combination in rtl_set_coalesceHeiner Kallweit1-0/+5
Realtek provided information about a HW constraint that time limit must not be set to 0 if the frame limit is >0. Add a check for this and reject invalid parameter combinations. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: improve rtl_set_coalesceHeiner Kallweit1-40/+30
Use FIELD_PREP() to make the code better readable, and avoid the loop. No functional change intended. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: improve interrupt coalescing parameter handlingHeiner Kallweit1-6/+6
The chip supports only frame limits 0, 4, 8, .. 60 internally. Returning EINVAL for all val % 4 != 0 seems to be a little bit too unfriendly to the user. Therefore round up the frame limit to the next supported value. In addition round up the time limit, else a very low limit could be rounded down to 0, and interpreted as "ignore value" by the chip. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: improve rtl_coalesce_choose_scaleHeiner Kallweit1-6/+7
The time limit provided by userspace is multiplied with 1000, what could result in an overflow. Therefore change the time limit parameter unit from ns to us, and avoid the problematic operation. If there's no matching scale because provided time limit is too big, return ERANGE instead of EINVAL to provide a hint to the user what's wrong. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: improve rtl_get_coalesceHeiner Kallweit1-26/+20
Use FIELD_GET() macro to make the code better readable. In addition change the logic to round the time limit up, not down. Reason is that a time limit <1us would be rounded to 0 currently, what would be interpreted as "no time limit set". Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: merge scale for tx and rx irq coalescingHeiner Kallweit1-40/+25
Rx and tx scale are the same always. Simplify the code by using one scale for rx and tx only. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01r8169: don't pass net_device to irq coalescing sub-functionsHeiner Kallweit1-6/+6
The net_device argument is just used to get a struct rtl8169_private pointer via netdev_priv(). Therefore pass the struct rtl8169_private pointer directly. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30hsr: remove hsr interface if all slaves are removedTaehee Yoo1-2/+20
When all hsr slave interfaces are removed, hsr interface doesn't work. At that moment, it's fine to remove an unused hsr interface automatically for saving resources. That's a common behavior of virtual interfaces. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30tcp: add hrtimer slack to sack compressionEric Dumazet5-2/+20
Add a sysctl to control hrtimer slack, default of 100 usec. This gives the opportunity to reduce system overhead, and help very short RTT flows. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30tcp: tcp_sack_new_ofo_skb() should be more conservativeEric Dumazet1-1/+11
Currently, tcp_sack_new_ofo_skb() sends an ack if prior acks were 'compressed', if room has to be made in tp->selective_acks[] But there is no guarantee all four sack ranges can be included in SACK option. As a matter of fact, when TCP timestamps option is used, only three SACK ranges can be included. Lets assume only two ranges can be included, and force the ack: - When we touch more than 2 ranges in the reordering done if tcp_sack_extend() could be done. - If we have at least 2 ranges when adding a new one. This enforces that before a range is in third or fourth position, at least one ACK packet included it in first/second position. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30tcp: add tp->dup_ack_counterEric Dumazet4-13/+38
In commit 86de5921a3d5 ("tcp: defer SACK compression after DupThresh") I added a TCP_FASTRETRANS_THRESH bias to tp->compressed_ack in order to enable sack compression only after 3 dupacks. Since we plan to relax this rule for flows that involve stacks not requiring this old rule, this patch adds a distinct tp->dup_ack_counter. This means the TCP_FASTRETRANS_THRESH value is now used in a single location that a future patch can adjust: if (tp->dup_ack_counter < TCP_FASTRETRANS_THRESH) { tp->dup_ack_counter++; goto send_now; } This patch also introduces tcp_sack_compress_send_ack() helper to ease following patch comprehension. This patch refines LINUX_MIB_TCPACKCOMPRESSED to not count the acks that we had to send if the timer expires or tcp_sack_compress_send_ack() is sending an ack. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Remove old SPAN APIIdo Schimmel2-209/+2
Remove the old SPAN API now that matchall-based and flower-based mirroring were converted to use the new API. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Use new analyzed ports list during speed / MTU changeIdo Schimmel1-37/+35
As previously explained, each port whose outgoing traffic is analyzed needs to have an egress mirror buffer. The size of the egress mirror buffer is calculated based on various parameters, two of which are the speed and the MTU of the port. Therefore, when the MTU or the speed of a port change, the SPAN code is called to see if the egress mirror buffer of the port needs to be adjusted. Currently, this is done by traversing all the SPAN agents and for each SPAN agent the list of bound ports is traversed. Instead of the above, traverse the recently added list of analyzed ports. This will later allow us to remove the old SPAN API. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_acl: Convert flower-based mirroring to new SPAN APIIdo Schimmel1-12/+19
In flower-based mirroring, mirroring is done with ACLs and the SPAN agent is not bound to a port. Instead its identifier is specified in an ACL action. Convert this type of mirroring to use the new API. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum: Convert matchall-based mirroring to new SPAN APIIdo Schimmel1-13/+39
In matchall-based mirroring, mirroring is not done with ACLs, but a SPAN agent is bound to the ingress / egress of a port and all incoming / outgoing traffic is mirrored. Convert this type of mirroring to use the new API. First the SPAN agent is resolved, then the port is marked as analyzed and its egress mirror buffer is potentially allocated. Lastly, the binding is performed. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Add APIs to bind / unbind a SPAN agentIdo Schimmel2-0/+187
Currently, a SPAN agent can only be bound to a per-port trigger where the trigger is either an incoming packet (INGRESS) or an outgoing packet (EGRESS) to / from the port. A follow-up patch set will introduce the concept of global triggers and per-{port, TC} enablement. With global triggers, the trigger entry is only keyed by a trigger and not by a port and a trigger. The trigger can be, for example, a packet that was early dropped. While the binding between the SPAN agent and the trigger is performed only once, the trigger entry needs to be reference counted, as the trigger can be enabled on multiple ports. Add APIs to bind / unbind a SPAN agent to a trigger and reference count the trigger entry in preparation for global triggers. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Wrap buffer change in a functionIdo Schimmel1-5/+12
The code that adjusts the egress buffer size is not symmetric at the moment. The update is done via a call to mlxsw_sp_span_port_buffer_update(), but the disablement is done inline by invoking the write to SBIB register directly. Wrap the disablement code in mlxsw_sp_span_port_buffer_disable(). Signed-off-by: Ido Schimmel <idosch@mellanox.com> Suggested-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Rename functionIdo Schimmel1-8/+8
Next patch will introduce mlxsw_sp_span_port_buffer_disable() function that disables the egress buffer on an analyzed port. Rename the opposite function that updates the buffer on an analyzed port accordingly. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Suggested-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Add APIs to get / put an analyzed portIdo Schimmel2-0/+140
An analyzed port is a port whose incoming / outgoing traffic is mirrored to a SPAN agent and analyzed on a remote server. A port can be analyzed by multiple tc filters and therefore the corresponding analyzed port entry needs to be reference counted. This is significant because ports whose outgoing traffic is analyzed need to have an egress mirror buffer. Add APIs to get / put an analyzed port. Allocate an egress mirror buffer on a port when it is first inspected at egress and free the buffer when it is no longer inspected at egress. Protect the list of analyzed ports with a mutex, as a later patch will traverse it from a context in which RTNL lock is not held. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_span: Add APIs to get / put a SPAN agentIdo Schimmel2-0/+47
Given a netdev that packets should be mirrored to, create a SPAN agent and return its identifier to the caller. The SPAN agent is reference counted, as multiple tc-mirred actions can point to the same destination netdev. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert tproxy.txt to ReSTMauro Carvalho Chehab3-27/+33
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert timestamping.txt to ReSTMauro Carvalho Chehab4-76/+97
- add SPDX header; - add a document title; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert team.txt to ReSTMauro Carvalho Chehab2-0/+7
Not much to be done here: - add SPDX header; - add a document title; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert tcp-thin.txt to ReSTMauro Carvalho Chehab3-1/+7
Not much to be done here: - add SPDX header; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert tc-actions-env-rules.txt to ReSTMauro Carvalho Chehab3-24/+30
- add SPDX header; - add a document title; - use the right numbered list markup; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert switchdev.txt to ReSTMauro Carvalho Chehab3-52/+67
- add SPDX header; - use copyright symbol; - adjust title markup; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert strparser.txt to ReSTMauro Carvalho Chehab2-26/+60
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert skfp.txt to ReSTMauro Carvalho Chehab3-61/+95
- add SPDX header; - use copyright symbol; - add a document title; - adjust titles and chapters, adding proper markups; - comment out text-only TOC from html/pdf output; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert seg6-sysctl.txt to ReSTMauro Carvalho Chehab3-18/+27
- add SPDX header; - mark code blocks and literals as such; - add a document title; - adjust chapters, adding proper markups; - mark lists as such; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert secid.txt to ReSTMauro Carvalho Chehab2-0/+7
Not much to be done here: - add SPDX header; - add a document title; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert sctp.txt to ReSTMauro Carvalho Chehab3-16/+24
- add SPDX header; - add a document title; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert rxrpc.txt to ReSTMauro Carvalho Chehab6-152/+167
- add SPDX header; - adjust title markup; - use autonumbered list markups; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert regulatory.txt to ReSTMauro Carvalho Chehab3-13/+19
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert rds.txt to ReSTMauro Carvalho Chehab3-141/+167
- add SPDX header; - add a document title; - mark code blocks and literals as such; - mark tables as such; - mark lists as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert ray_cs.txt to ReSTMauro Carvalho Chehab3-46/+62
- add SPDX header; - use copyright symbol; - add a document title; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert radiotap-headers.txt to ReSTMauro Carvalho Chehab5-49/+57
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert proc_net_tcp.txt to ReSTMauro Carvalho Chehab2-7/+17
- add SPDX header; - add a document title; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert ppp_generic.txt to ReSTMauro Carvalho Chehab2-20/+33
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - mark tables as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert PLIP.txt to ReSTMauro Carvalho Chehab3-19/+27
- add SPDX header; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert pktgen.txt to ReSTMauro Carvalho Chehab5-157/+170
- add SPDX header; - adjust title markup; - use bold markups on a few places; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert phonet.txt to ReSTMauro Carvalho Chehab4-22/+39
- add SPDX header; - adjust title markup; - use copyright symbol; - add notes markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: RĂ©mi Denis-Courmont <courmisch@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert packet_mmap.txt to ReSTMauro Carvalho Chehab3-1061/+1085
This patch has a big diff, but most are due to whitespaces. Yet, the conversion is similar to other files under networking: - add SPDX header; - add a document title; - adjust titles and chapters, adding proper markups; - mark lists as such; - mark tables as such; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert operstates.txt to ReSTMauro Carvalho Chehab2-12/+34
- add SPDX header; - add a document title; - adjust chapters, adding proper markups; - mark lists as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert openvswitch.txt to ReSTMauro Carvalho Chehab2-10/+14
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert nf_flowtable.txt to ReSTMauro Carvalho Chehab2-25/+31
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - add notes markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30docs: networking: convert nf_conntrack-sysctl.txt to ReSTMauro Carvalho Chehab2-22/+30
- add SPDX header; - add a document title; - mark lists as such; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>