- 20 May, 2018 5 commits
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David S. Miller authored
Sergei Shtylyov says: ==================== Add Renesas R8A77980 GEther support Here's a set of 3 patches against DaveM's 'net-next.git' repo. They (gradually) add R8A77980 GEther support to the 'sh_eth' driver, starting with couple new register bits/values introduced with this chip, and ending with adding a new 'struct sh_eth_cpu_data' instance connected to the new DT "compatible" prop value... ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Sergei Shtylyov authored
Finally, add support for the DT probing of the R-Car V3H (AKA R8A77980) -- it's the only R-Car gen3 SoC having the GEther controller -- others have only EtherAVB... Based on the original (and large) patch by Vladimir Barinov. Signed-off-by:
Vladimir Barinov <vladimir.barinov@cogentembedded.com> Signed-off-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
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Sergei Shtylyov authored
The R-Car V3H (AKA R8A77980) GEther controller adds the DMA burst mode bit (NBST) in EDMR and the manual tells to always set it before doing any DMA. Based on the original (and large) patch by Vladimir Barinov. Signed-off-by:
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Sergei Shtylyov authored
The R-Car V3H (AKA R8A77980) GEther controller adds support for the RGMII PHY interface mode as a new value for the RMII_MII register. Based on the original (and large) patch by Vladimir Barinov. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Maxime Chevallier authored
Marvell PPv2 Header Parser sets some bits in the 'result_info' field in each lookup iteration, to identify different packet attributes such as DSA / VLAN tag, protocol infos, etc. This is used in further classification stages in the controller. It's the DSA tag detection entry that is in charge of detecting when there is a single VLAN tag. This commits adds the missing update of the result_info in this case. Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by:
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- 19 May, 2018 6 commits
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David S. Miller authored
Jiri Pirko says: ==================== devlink: introduce port flavours and common phys_port_name generation This patchset resolves 2 issues we have right now: 1) There are many netdevices / ports in the system, for port, pf, vf represenatation but the user has no way to see which is which 2) The ndo_get_phys_port_name is implemented in each driver separatelly, which may lead to inconsistent names between drivers. This patchset introduces port flavours which should address the first problem. In this initial patchset, I focus on DSA and their port flavours. As a follow-up, I plan to add PF and VF representor flavours. However, that needs additional dependencies in drivers (nfp, mlx5). The common phys_port_name generation is used by mlxsw. An example output for mlxsw looks like this: ... pci/0000:03:00.0/59: type eth netdev enp3s0np4 flavour physical number 4 pci/0000:03:00.0/61: type eth netdev enp3s0np1 flavour physical number 1 pci/0000:03:00.0/63: type eth netdev enp3s0np2 flavour physical number 2 pci/0000:03:00.0/49: type eth netdev enp3s0np8s0 flavour physical number 8 split_group 8 subport 0 pci/0000:03:00.0/50: type eth netdev enp3s0np8s1 flavour physical number 8 split_group 8 subport 1 pci/0000:03:00.0/51: type eth netdev enp3s0np8s2 flavour physical number 8 split_group 8 subport 2 pci/0000:03:00.0/52: type eth netdev enp3s0np8s3 flavour physical number 8 split_group 8 subport 3 As you can see, the netdev names are generated according to the flavour and port number. In case the port is split, the split subnumber is also included. An example output for dsa_loop testing module looks like this: mdio_bus/fixed-0:1f/0: type eth netdev lan1 flavour physical number 0 mdio_bus/fixed-0:1f/1: type eth netdev lan2 flavour physical number 1 mdio_bus/fixed-0:1f/2: type eth netdev lan3 flavour physical number 2 mdio_bus/fixed-0:1f/3: type eth netdev lan4 flavour physical number 3 mdio_bus/fixed-0:1f/4: type notset mdio_bus/fixed-0:1f/5: type notset flavour cpu number 5 mdio_bus/fixed-0:1f/6: type notset mdio_bus/fixed-0:1f/7: type notset mdio_bus/fixed-0:1f/8: type notset mdio_bus/fixed-0:1f/9: type notset mdio_bus/fixed-0:1f/10: type notset mdio_bus/fixed-0:1f/11: type notset --- RFC->v1: -removed nfp patches, removed DSA patch that used name generation helper -patch 1: - Reduced the nfp change just to simply use newly created attr_set func -patch 2: - rebased - removed pf/vf reps flavours -patch 3: - rebased -patch 4: - added missing break pointed out by Andrew ==================== Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Tested-by:
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Jiri Pirko authored
Since devlink knows the info needed to generate the physical port name in a generic way for all devlink users, use the helper to do the job. Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Jiri Pirko authored
Set the attrs and allow to expose port flavour to user via devlink. Signed-off-by:
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Jiri Pirko authored
Each driver implements physical port name generation by itself. However as devlink has all needed info, it can easily do the job for all its users. So implement this helper in devlink. Signed-off-by:
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Jiri Pirko authored
Devlink ports can have specific flavour according to the purpose of use. This patch extend attrs_set so the driver can say which flavour port has. Initial flavours are: physical, cpu, dsa User can query this to see right away what is the purpose of each port. Signed-off-by:
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Jiri Pirko authored
Change existing setter for split port information into more generic attrs setter. Alongside with that, allow to set port number and subport number for split ports. Signed-off-by:
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- 18 May, 2018 29 commits
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Jose Abreu authored
Some HW specific setups, like sun8i, do not populate all the necessary callbacks, which is what HWIF helpers were expecting. Fix this by always trying to get the generic helpers and populate them if they were not previously populated by HW specific setup. Signed-off-by:
Jose Abreu <joabreu@synopsys.com> Fixes: 5f0456b4 ("net: stmmac: Implement logic to automatically select HW Interface") Reported-by:
Corentin Labbe <clabbe.montjoie@gmail.com> Tested-by:
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Rahul Lakkireddy authored
For T6, collect info on queue mapping to corresponding PF/VF in SGE. Signed-off-by:
Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
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Antoine Tenart authored
This patch on the Marvell PPv2 driver is only cosmetic. Two typos are removed as well as other cosmetic fixes, such as extra new lines or tabs vs spaces. Suggested-by:
Stefan Chulski <stefanc@marvell.com> Signed-off-by:
Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in printk message text Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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kbuild test robot authored
Fixes: 20b654df ("tcp: support DUPACK threshold in RACK") Signed-off-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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David S. Miller authored
Ursula Braun says: ==================== net/smc: cleanups 2018-05-18 here are SMC patches for net-next providing restructuring and cleanup in different areas. ==================== Signed-off-by: -
Hans Wippel authored
This patch splits up the functions smc_connect_rdma and smc_listen_work into smaller functions. Signed-off-by:
Hans Wippel <hwippel@linux.ibm.com> Signed-off-by:
Ursula Braun <ubraun@linux.ibm.com> Signed-off-by:
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Hans Wippel authored
This patch changes the function smc_buf_free to use the SMC link group instead of the link as function parameter. Also, it changes the order of the other two parameters. Signed-off-by:
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Hans Wippel authored
This patch consists of Christmas tree fixes and removal of an unneeded function parameter. Signed-off-by:
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Hans Wippel authored
This patch moves a CDC sanity check from smc_cdc_msg_recv_action() to the other sanity checks in smc_cdc_rx_handler(). While doing this, it simplifies smc_cdc_msg_recv() and removes unneeded function parameters. Signed-off-by:
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Hans Wippel authored
SMC connection and buffer handling belong to smc_core. So, this patch moves this code from smc.h to smc_core. Signed-off-by:
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Hans Wippel authored
Currently, the write offset within the RMB is calculated on each write operation although it is fixed for each connection. With this patch, the offset is calculated once and stored in a connection specific variable. Signed-off-by:
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Hans Wippel authored
The connection index is actually a RMBE index. So, this patch changes the name accordingly. Signed-off-by:
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Hans Wippel authored
This patch moves the global link group list to smc_core where the link group functions are. To make this work, it moves code in af_smc and smc_ib that operates on the link group list to smc_core as well. While at it, the link group counter is integrated into the list structure and initialized to zero. Signed-off-by:
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Hans Wippel authored
In addition to the buffer references, SMC currently stores the sizes of the receive and send buffers in each connection as separate variables. This patch introduces a buffer length variable in the common buffer descriptor and uses this length instead. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
Saeed Mahameed says: ==================== mlx5e-updates-2018-05-17 From: Or Gerlitz <ogerlitz@mellanox.com> This series addresses a regression introduced by the shared block TC changes [1]. Currently, for VF->VF and uplink->VF rules, the TC core (cls_api) attempts to offload the same flow multiple times into the driver, as a side effect of the mlx5 registration to the egdev callback. We use the flow cookie to ignore attempts to add such flows, we can't reject them (return error), b/c this will fail the offload attempt, so we ignore that. The last patch of the series deals with exposing HW stats counters through ethtool for the vport reps. Dave - the regression that we are addressing was introduced in 4.15 [1] and applies to nfp and mlx5. Jiri suggested to push driver side fixes to net-next, this is already done for nfp [2][3]. Once this is upstream, we will submit a small/point single patch fix for the TC core code which can serve for net and stable, but not carried into net-next, b/c it might limit some future use-cases. [1] 208c0f4b "net: sched: use tc_setup_cb_call to call per-block callbacks" [2] c50647d3 "nfp: flower: ignore duplicate cb requests for same rule" [3] 54a4a034 "nfp: flower: support offloading multiple rules with same cookie" ==================== Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linuxDavid S. Miller authored
Saeed Mahameed says: ==================== mlx5-updates-2018-05-17 mlx5 core dirver updates for both net-next and rdma-next branches. From Christophe JAILLET, first three patche to use kvfree where needed. From: Or Gerlitz <ogerlitz@mellanox.com> Next six patches from Roi and Co adds support for merged sriov e-switch which comes to serve cases where both PFs, VFs set on them and both uplinks are to be used in single v-switch SW model. When merged e-switch is supported, the per-port e-switch is logically merged into one e-switch that spans both physical ports and all the VFs. This model allows to offload TC eswitch rules between VFs belonging to different PFs (and hence have different eswitch affinity), it also sets the some of the foundations needed for uplink LAG support. ==================== Signed-off-by: -
David S. Miller authored
Eric Dumazet says: ==================== tcp: implement SACK compression When TCP receives an out-of-order packet, it immediately sends a SACK packet, generating network load but also forcing the receiver to send 1-MSS pathological packets, increasing its RTX queue length/depth, and thus processing time. Wifi networks suffer from this aggressive behavior, but generally speaking, all these SACK packets add fuel to the fire when networks are under congestion. This patch series adds SACK compression, but the infrastructure could be leveraged to also compress ACK in the future. v2: Addressed Neal feedback. Added two sysctls to allow fine tuning, or even disabling the feature. v3: take rtt = min(srtt, rcv_rtt) as Yuchung suggested, because rcv_rtt can be over estimated for RPC (or sender limited) ==================== Signed-off-by: -
Eric Dumazet authored
This per netns sysctl allows for TCP SACK compression fine-tuning. This limits number of SACK that can be compressed. Using 0 disables SACK compression. Signed-off-by:
Eric Dumazet <edumazet@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Eric Dumazet authored
This per netns sysctl allows for TCP SACK compression fine-tuning. Its default value is 1,000,000, or 1 ms to meet TSO autosizing period. Signed-off-by:
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Eric Dumazet authored
This counter tracks number of ACK packets that the host has not sent, thanks to ACK compression. Sample output : $ nstat -n;sleep 1;nstat|egrep "IpInReceives|IpOutRequests|TcpInSegs|TcpOutSegs|TcpExtTCPAckCompressed" IpInReceives 123250 0.0 IpOutRequests 3684 0.0 TcpInSegs 123251 0.0 TcpOutSegs 3684 0.0 TcpExtTCPAckCompressed 119252 0.0 Signed-off-by:
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Eric Dumazet authored
When TCP receives an out-of-order packet, it immediately sends a SACK packet, generating network load but also forcing the receiver to send 1-MSS pathological packets, increasing its RTX queue length/depth, and thus processing time. Wifi networks suffer from this aggressive behavior, but generally speaking, all these SACK packets add fuel to the fire when networks are under congestion. This patch adds a high resolution timer and tp->compressed_ack counter. Instead of sending a SACK, we program this timer with a small delay, based on RTT and capped to 1 ms : delay = min ( 5 % of RTT, 1 ms) If subsequent SACKs need to be sent while the timer has not yet expired, we simply increment tp->compressed_ack. When timer expires, a SACK is sent with the latest information. Whenever an ACK is sent (if data is sent, or if in-order data is received) timer is canceled. Note that tcp_sack_new_ofo_skb() is able to force a SACK to be sent if the sack blocks need to be shuffled, even if the timer has not expired. A new SNMP counter is added in the following patch. Two other patches add sysctls to allow changing the 1,000,000 and 44 values that this commit hard-coded. Signed-off-by:
Yuchung Cheng <ycheng@google.com> Acked-by:
Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by:
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Eric Dumazet authored
As explained in commit 9f9843a7 ("tcp: properly handle stretch acks in slow start"), TCP stacks have to consider how many packets are acknowledged in one single ACK, because of GRO, but also because of ACK compression or losses. We plan to add SACK compression in the following patch, we must therefore not call tcp_enter_quickack_mode() Signed-off-by:
Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by:
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Eric Dumazet authored
Socket can not disappear under us. Signed-off-by:
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Alexandre Belloni authored
ocelot_qsys.h is missing the SPDX identfier, fix that. Signed-off-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by:
Allan W. Nielsen <allan.nielsen@microsemi.com> Signed-off-by:
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David S. Miller authored
Jose Abreu says: ==================== net: stmmac: Clean-up and tune-up This targets to uniformize the handling of the different GMAC versions in stmmac_main.c file and also tune-up the HW. Currently there are some if/else conditions in the main source file which calls different callbacks depending on the ID of GMAC. With the introducion of a generic HW interface handling which automatically selects the GMAC callbacks to be used, it is now unpleasant to see if conditions in the main code because this should be completely agnostic of the GMAC version. This series removes most of these conditions. There are some if conditions that remain untouched but the callbacks handling are now uniformized. Tested in GMAC5, hope I didn't break any previous versions. Please check [1] for performance analisys of patches 3-12. ==================== Signed-off-by: -
Jose Abreu authored
We can remove the if condition and check if return code is different than -EINVAL, meaning callback is present. Signed-off-by:
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Jose Abreu authored
Stop using if conditions depending on the GMAC version for getting the descriptor skbuff address and use instead a helper implemented in the descriptor files. Signed-off-by:
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Jose Abreu authored
Currently an if condition is used to select the correct callback to set rx_onwer in descriptor. Lets keep this simple and always use the same callback. Signed-off-by:
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