- 30 Jun, 2018 34 commits
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Tung Nguyen authored
The function tipc_msg_extract() is using skb_clone() to clone inner messages from a message bundle buffer. Although this method is safe, it has an undesired effect that each buffer clone inherits the true-size of the bundling buffer. As a result, the buffer clone almost always ends up with being copied anyway by the message validation function. This makes the cloning into a sub-optimization. In this commit we take the consequence of this realization, and copy each inner message to a separately allocated buffer up front in the extraction function. As a bonus we can now eliminate the two cases where we had to copy re-routed packets that may potentially go out on the wire again. Signed-off-by:
Tung Nguyen <tung.q.nguyen@dektech.com.au> Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by:
Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by:
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Heiner Kallweit authored
In preparation of adding phylib support to the r8169 driver we need PHY drivers for all chip-internal PHY types. Fortunately almost all of them are either supported by the Realtek PHY driver already or work with the genphy driver. Still missing is support for the PHY of RTL8169s, it requires a quirk to properly support 100Mbit-fixed mode. The quirk was copied from r8169 driver which copied it from the vendor driver. Based on the PHYID the internal PHY seems to be a RTL8211. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Heiner Kallweit authored
I see no need to define a private debug output symbol, let's use the standard debug output functions instead. In this context also remove the deprecated PFX define. The one assertion is wrong IMO anyway, this code path is used also by chip version 01. Signed-off-by:
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David S. Miller authored
Ursula Braun says: ==================== smc: pnetid and SMC-D support SMC requires a configured pnet table to map Ethernet interfaces to RoCE adapter ports. For s390 there exists hardware support to group such devices. The first three patches cover the s390 pnetid support, enabling SMC-R usage on s390 without configuring an extra pnet table. SMC currently requires RoCE adapters, and uses RDMA-techniques implemented with IB-verbs. But s390 offers another method for intra-CEC Shared Memory communication. The following seven patches implement a solution to run SMC traffic based on intra-CEC DMA, called SMC-D. ==================== Signed-off-by: -
Sebastian Ott authored
Add support for the Internal Shared Memory vPCI Adapter. This driver implements the interfaces of the SMC-D protocol. Signed-off-by:
Sebastian Ott <sebott@linux.ibm.com> Signed-off-by:
Ursula Braun <ubraun@linux.ibm.com> Signed-off-by:
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Hans Wippel authored
This patch adds diag support for SMC-D. Signed-off-by:
Hans Wippel <hwippel@linux.ibm.com> Signed-off-by:
Thomas Richter <tmricht@linux.ibm.com> Signed-off-by:
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Hans Wippel authored
This patch ties together the previous SMC-D patches. It adds support for SMC-D to the listen and connect functions and, thus, enables SMC-D support in the SMC code. If a connection supports both SMC-R and SMC-D, SMC-D is preferred. Signed-off-by:
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Hans Wippel authored
The data transfer and CDC message headers differ in SMC-R and SMC-D. This patch adds support for the SMC-D data transfer to the existing SMC code. It consists of the following: * SMC-D CDC support * SMC-D tx support * SMC-D rx support The CDC header is stored at the beginning of the receive buffer. Thus, a rx_offset variable is added for the CDC header offset within the buffer (0 for SMC-R). Signed-off-by:
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Hans Wippel authored
There are two types of SMC: SMC-R and SMC-D. These types are signaled within the CLC messages during the CLC handshake. This patch adds support for and checks of the SMC type. Also, SMC-R and SMC-D need to exchange different information during the CLC handshake. So, this patch extends the current message formats to support the SMC-D header fields. The Proposal message can contain both SMC-R and SMC-D information. The Accept and Confirm messages contain either SMC-R or SMC-D information. Signed-off-by:
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Hans Wippel authored
SMC-D relies on PNETIDs to find usable SMC-D/ISM devices for a SMC connection. This patch adds SMC-D/ISM support to the current PNETID implementation. Signed-off-by:
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Hans Wippel authored
SMC supports two variants: SMC-R and SMC-D. For data transport, SMC-R uses RDMA devices, SMC-D uses so-called Internal Shared Memory (ISM) devices. An ISM device only allows shared memory communication between SMC instances on the same machine. For example, this allows virtual machines on the same host to communicate via SMC without RDMA devices. This patch adds the base infrastructure for SMC-D and ISM devices to the existing SMC code. It contains the following: * ISM driver interface: This interface allows an ISM driver to register ISM devices in SMC. In the process, the driver provides a set of device ops for each device. SMC uses these ops to execute SMC specific operations on or transfer data over the device. * Core SMC-D link group, connection, and buffer support: Link groups, SMC connections and SMC buffers (in smc_core) are extended to support SMC-D. * SMC type checks: Some type checks are added to prevent using SMC-R specific code for SMC-D and vice versa. To actually use SMC-D, additional changes to pnetid, CLC, CDC, etc. are required. These are added in follow-up patches. Signed-off-by:
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Ursula Braun authored
The SMC protocol requires to send a separate consumer cursor update, if it cannot be piggybacked to updates of the producer cursor. Currently the decision to send a separate consumer cursor update just considers the amount of data already received by the socket program. It does not consider the amount of data already arrived, but not yet consumed by the receiver. Basing the decision on the difference between already confirmed and already arrived data (instead of difference between already confirmed and already consumed data), may lead to a somewhat earlier consumer cursor update send in fast unidirectional traffic scenarios, and thus to better throughput. Signed-off-by:
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Ursula Braun authored
s390 hardware supports the definition of a so-call Physical NETwork IDentifier (short PNETID) per network device port. These PNETIDS can be used to identify network devices that are attached to the same physical network (broadcast domain). On s390 try to use the PNETID of the ethernet device port used for initial connecting, and derive the IB device port used for SMC RDMA traffic. On platforms without PNETID support fall back to the existing solution of a configured pnet table. Signed-off-by:
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Ursula Braun authored
For SMC it is important to know the current port state of RoCE devices. Monitoring port states has been triggered, when a RoCE device was added to the pnet table. To support future alternatives to the pnet table the monitoring of ports is made independent of the existence of a pnet table. It starts once the smc_ib_device is established. Due to this change smc_ib_remember_port_attr() is now a local function and shuffling its location and the location of its used functions makes any forward references obsolete. And the duplicate SMC_MAX_PORTS definition is removed. Signed-off-by:
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David S. Miller authored
Petr Machata says: ==================== Fixes for running mirror-to-gretap tests on veth The forwarding selftests infrastructure makes it possible to run the individual tests on a purely software netdevices. Names of interfaces to run the test with can be passed as command line arguments to a test. lib.sh then creates veth pairs backing the interfaces if none exist in the system. However, the tests need to recognize that they might be run on a soft device. Many mirror-to-gretap tests are buggy in this regard. This patch set aims to fix the problems in running mirror-to-gretap tests on veth devices. In patch #1, a service function is split out of setup_wait(). In patch #2, installing a trap is made optional. In patch #3, tc filters in several tests are tweaked to work with veth. In patch #4, the logic for waiting for neighbor is fixed for veth. ==================== Signed-off-by: -
Petr Machata authored
When running the test on soft devices, there's no mechanism to gratuitously start resolving the neighbor for remote tunnel endpoint. So instead of passively waiting, wait for the device to be up, and then probe the neighbor with a ping. Signed-off-by:
Petr Machata <petrm@mellanox.com> Signed-off-by:
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Petr Machata authored
When running mirror_gre_bridge_1d_vlan tests on veth, several issues cause spurious failures: - vlan_ethtype should be ip, not ipv6 even in mirror-to-ip6gretap case, because the overlay packet is still IPv4. - Similarly ip_proto matches the innermost IP protocol, so can't be used to filter out GRE packet. Drop the corresponding condition. - Because the above fixes the filters to match in slow path as well, they need to be made skip_hw so as not to double-count packets. Signed-off-by:
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Petr Machata authored
There are several cases where traffic that would normally be forwarded in silicon needs to be observed in slow path. That's achieved by trapping such traffic, and the functions trap_install() and trap_uninstall() realize that. However, such treatment is obviously wrong if the device in question is actually a soft device not backed by an ASIC. Therefore try to trap if possible, but fall back to inserting a continue if not. Signed-off-by:
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Petr Machata authored
Split out of setup_wait() a function setup_wait_dev() that waits for a single device. This gives tests the opportunity to wait for a selected device after they tinkered with its upness. Signed-off-by:
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David S. Miller authored
Radhey Shyam Pandey says: ==================== Fixes coding style in xilinx_emaclite.c This patchset fixes checkpatch and kernel-doc warnings in xilinx emaclite driver. No functional change. Changes from v2: -In 2/5 patch refactor if-else to make failure path return early. -In 2/5 patch coalesce the format onto a single line and add the missing space after the comma. ==================== Signed-off-by: -
Radhey Shyam Pandey authored
This patch fixes below checkpatch checks- CHECK: spaces preferred around that '*' (ctx:VxV) CHECK: No space is necessary after a cast Signed-off-by:
Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by:
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Radhey Shyam Pandey authored
This patch fixes below checkpatch warnings- WARNING: Block comments use a trailing */ on a separate line WARNING: Block comments use * on subsequent lines WARNING: networking block comments don't use an empty /* line, use /* Comment Signed-off-by:
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Radhey Shyam Pandey authored
This patch fixes below kernel-doc warnings: Function parameter or member 'maxlen' not described in 'xemaclite_recv_data' Function parameter or member 'address'not described in 'xemaclite_set_mac_address' Excess function parameter 'addr' description in 'xemaclite_set_mac_address' No description found for return value of 'xemaclite_interrupt' No description found for return value of 'xemaclite_mdio_write' Function parameter or member 'dev' not described in 'xemaclite_mdio_setup' Excess function parameter 'ofdev' description in 'xemaclite_mdio_setup' No description found for return value of 'xemaclite_open' No description found for return value of 'xemaclite_close' Excess function parameter 'match' description in 'xemaclite_of_probe' Signed-off-by:
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Radhey Shyam Pandey authored
Remove else as it is not required with if doing a return. It also coalesce the format onto a single line and add the missing space after the comma. Fixes below checkpatch warning- WARNING: else is not generally useful after a break or return Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Signed-off-by:
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Radhey Shyam Pandey authored
Switch hardcoded function name with a reference to __func__ making the code more maintainable. Address below checkpatch warning: WARNING: Prefer using '"%s...", __func__' to using 'xemaclite_mdio_read', this function's name, in a string + "xemaclite_mdio_read(phy_id=%i, reg=%x) == %x\n", WARNING: Prefer using '"%s...", __func__' to using 'xemaclite_mdio_write', this function's name, in a string + "xemaclite_mdio_write(phy_id=%i, reg=%x, val=%x)\n", Signed-off-by:
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David S. Miller authored
Maxime Chevallier says: ==================== net: mvpp2: Add big-endian support This series allows to use PPv2 on system built as big endian. The first patch fixes the way we represent TX and RX descriptors, so that they used fixed little endianness as expected by the PPv2 controller. The second reworks the way we handle the software representation of the Header Parser entries, so that we don't use a union of arrays. The last two patches fixes some incorrect byte swapping logic, that wen't un-noticed on little-endian. This whole series doesn't fix any existing bug for little-endian systems, and since big-endian never worked for this driver, I didn't include 'fixes' tags. This was tested on MacchiatoBin (Armada 8040). ==================== Signed-off-by: -
Maxime Chevallier authored
When checking the skb->protocol field, we have to make sure we use the proper endianness using htons, and not swab16. Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by:
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Maxime Chevallier authored
Vlan IDs must not be swapped when creating Header Parser entries. This has no effect on little-endian systems, but is wrong for big-endian. Signed-off-by:
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Maxime Chevallier authored
PPv2's Header Parser use some large TCAM and SRAM entries, that are duplicated in software so that we can write them to hardware only when we are done modifying them. Currently, PPv2 uses a union containing arrays of u32 and u8 to represent these entries, to facilitate byte per byte access. This representation is broken when we want to support big endian, and this makes the code confusing to read. This patch drops the union, and simply stores the TCAM and SRAM entries as u32 arrays, each entry corresponding to a 32-bit register. Signed-off-by:
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Maxime Chevallier authored
The PPv2 controller always expect descriptors to be in little endian. We must therefore force descriptors to use that format, and convert to the host endianness when necessary. Signed-off-by:
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Yafang Shao authored
When sk_rmem_alloc is larger than the receive buffer and we can't schedule more memory for it, the skb will be dropped. In above situation, if this skb is put into the ofo queue, LINUX_MIB_TCPOFODROP is incremented to track it. While if this skb is put into the receive queue, there's no record. So a new SNMP counter is introduced to track this behavior. LINUX_MIB_TCPRCVQDROP: Number of packets meant to be queued in rcv queue but dropped because socket rcvbuf limit hit. Signed-off-by:
Yafang Shao <laoar.shao@gmail.com> Signed-off-by:
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Gustavo A. R. Silva authored
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by:
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Jose Abreu authored
This adds support for CBS reconfiguration using the TC application. A new callback was added to TC ops struct and another one to DMA ops to reconfigure the channel mode. Tested in GMAC5.10. Signed-off-by:
Jose Abreu <joabreu@synopsys.com> Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Vitor Soares <soares@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by:
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- 29 Jun, 2018 6 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
Saeed Mahameed says: ==================== mlx5e-updates-2018-06-28 mlx5e netdevice driver updates: - Boris Pismenny added the support for UDP GSO in the first two patches. Impressive performance numbers are included in the commit message, @Line rate with ~half of the cpu utilization compared to non offload or no GSO at all. - From Tariq Toukan: - Convert large order kzalloc allocations to kvzalloc. - Added performance diagnostic statistics to several places in data path. From Saeed and Eran, - Update NIC HW stats on demand only, this is to eliminate the background thread needed to update some HW statistics in the driver cache in order to report error and drop counters from HW in ndo_get_stats. ==================== Signed-off-by: -
David S. Miller authored
Jakub Kicinski says: ==================== net: Geneve options support for TC act_tunnel_key Simon & Pieter say: This set adds Geneve Options support to the TC tunnel key action. It provides the plumbing required to configure Geneve variable length options. The options can be configured in the form CLASS:TYPE:DATA, where CLASS is represented as a 16bit hexadecimal value, TYPE as an 8bit hexadecimal value and DATA as a variable length hexadecimal value. Additionally multiple options may be listed using a comma delimiter. v2: - fix sparse warnings in patches 3 and 4 (first one reported by build bot). ==================== Signed-off-by: -
Simon Horman authored
Allow setting tunnel options using the act_tunnel_key action. Options are expressed as class:type:data and multiple options may be listed using a comma delimiter. # ip link add name geneve0 type geneve dstport 0 external # tc qdisc add dev eth0 ingress # tc filter add dev eth0 protocol ip parent ffff: \ flower indev eth0 \ ip_proto udp \ action tunnel_key \ set src_ip 10.0.99.192 \ dst_ip 10.0.99.193 \ dst_port 6081 \ id 11 \ geneve_opts 0102:80:00800022,0102:80:00800022 \ action mirred egress redirect dev geneve0 Signed-off-by:Simon Horman <simon.horman@netronome.com> Signed-off-by:
Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Reviewed-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Pieter Jansen van Vuuren authored
Check the tunnel option type stored in tunnel flags when creating options for tunnels. Thereby ensuring we do not set geneve, vxlan or erspan tunnel options on interfaces that are not associated with them. Make sure all users of the infrastructure set correct flags, for the BPF helper we have to set all bits to keep backward compatibility. Signed-off-by:
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Simon Horman authored
Add extended ack support for the tunnel key action by using NL_SET_ERR_MSG during validation of user input. Cc: Alexander Aring <aring@mojatatu.com> Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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Simon Horman authored
Metadata may be NULL for one of two reasons: * Missing user input * Failure to allocate the metadata dst Disambiguate these case by returning -EINVAL for the former and -ENOMEM for the latter rather than -EINVAL for both cases. This is in preparation for using extended ack to provide more information to users when parsing their input. Signed-off-by:
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