- 09 Nov, 2016 37 commits
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Edward Cree authored
This improves UDP spreading, and also slightly improves GRO performance of encapsulated TCP on 7000 series NICs. Signed-off-by:
Edward Cree <ecree@solarflare.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Saeed Mahameed says: ==================== Mellanox 100G SRIOV offloads tunnel_key set/release From Hadar Hen Zion: This series further enhances the SRIOV TC offloads of mlx5 to handle the TC tunnel_key release and set actions. This serves a common use-case in virtualization systems where the virtual switch encapsulate packets (tunnel_key set action) sent from VMs with outer headers corresponding to the local/remote host IPs and de-capsulate (tunnel_key release) outer headers before the packets are received by the VM. We use the new E-Switch switchdev mode and TC tunnel_key set/release action to achieve that also in SW defined SRIOV environments by offloading TC rules that contain these actions along with forwarding (TC mirred/redirect action) the packets. The first six patches are adding the needed support in flow dissector, flower and tc for offloading tunnel_key actions: - The first three patches are adding the needed help functions and enums - The next three patches in the series are adding UDP port attribute to tunnel_key release and set actions. The addition of UDP ports would allow the HW driver to make sure they are given (say) a VXLAN tunnel to offload (mlx5e uses that). Patches 7-10 are mlx5 preparations for tunnel_key actions offloads support. Patch #11 adds mlx5e support to offload tunnel_key release action, and the last two patches (#12-13) add mlx5e support to tc tunnel_key set action. Currently in order to offload tc tunnel_key release action, the tc rule should be placed on top of the mlx5e offloading (uplink) interface instead of the shared tunnel interface. The resolution between the tunnel interface to the HW netdevice will be implemented in a follow up series. This series was generated against commit 94edc86b ("Merge branch 'dwmac-sti-refactor-cleanup'") ==================== Signed-off-by: -
Hadar Hen Zion authored
In mlx5 HW, encapsulation is offloaded by the steering rule having index into an encapsulation table containing the entire set of headers to be added by the HW. The driver sets these headers in a buffer when we are offloading the action. The code maintains mlx5_encap_entry for each encap header it has encountered when attempted to offload TC tunnel set action. This entry maintains a linked list of all the flows sharing the same encap header, when the last flow is removed from the list the encap entry is removed. The actual encap_header is allocated by the driver in the hardware only if we have layer two neighbour info when the encap entry is created. While the flow is in the driver, the driver holds a reference on the neighbour. When a new flow with encap action is inserted, the code first checks if the required encap entry exists according to the tunnel set parameters. If it does the encap is shared, otherwise a new mlx5_encap_entry is created. TC action parsing implementation in the driver assumes that tunnel set action is provided in the same order set by the user, e.g before the mirred_redirect action. Signed-off-by:
Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
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Hadar Hen Zion authored
By implementing this ndo, the host stack will set the vxlan udp port also to VF representor netdevices. This will allow the TC offload code in the driver when it gets a tunnel key set action to identify the UDP port as vxlan, and hence the rule will be a candidate for offloading. Signed-off-by:
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Hadar Hen Zion authored
Enhance the parsing of offloaded TC rules to set HW matching on outer (encapsulation) headers. Parse TC tunnel release action and set it as mlx5 decap action when the required capabilities are supported. Signed-off-by:
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Hadar Hen Zion authored
In order to support steering rules which add encapsulation headers, encap_id parameter is needed. Add new mlx5_flow_act struct which holds action related parameter: action, flow_tag and encap_id. Use mlx5_flow_act struct when adding a new steering rule. This patch doesn't change any functionality. Signed-off-by:
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Hadar Hen Zion authored
When creating flow tables, allow the caller to specify creation flags. Currently no flags are used and as such this patch doesn't add any new functionality. Signed-off-by:
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Hadar Hen Zion authored
Instead of comparing to a const value, check the value of max encap header size capability as reported by the Firmware. Fixes: 575ddf58 ('net/mlx5: Introduce alloc_encap and dealloc_encap commands') Signed-off-by:
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Hadar Hen Zion authored
The alloc and dealloc encap commands will be used in the mlx5e driver, as such, declare them in a common header file. Also, rename the functions: mlx5_cmd_{de}alloc_encap is replaced with mlx5_encap_{de}alloc. Signed-off-by: -
Hadar Hen Zion authored
The current tunnel set action supports only IP addresses and key options. Add UDP dst port option. Signed-off-by:
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Hadar Hen Zion authored
Add dst port parameter to __ip_tun_set_dst and __ipv6_tun_set_dst utility functions. Signed-off-by:
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Hadar Hen Zion authored
The current IP tunneling classification supports only IP addresses and key. Enhance UDP based IP tunneling classification parameters by adding UDP src and dst port. Signed-off-by:
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Hadar Hen Zion authored
When encapsulation field is set, mark it as used key for the flow dissector. This will be used by offloading drivers. Signed-off-by:
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Hadar Hen Zion authored
New encapsulation keys were added to the flower classifier, which allow classification according to outer (encapsulation) headers attributes such as key and IP addresses. In order to expose those attributes outside flower, add corresponding enums in the flow dissector. Signed-off-by:
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Hadar Hen Zion authored
Needed for drivers to pick the relevant action when offloading tunnel key act. Signed-off-by:
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Lorenzo Colitti authored
Without this check, it is not possible to create two rules that are identical except for their UID ranges. For example: root@net-test:/# ip rule add prio 1000 lookup 300 root@net-test:/# ip rule add prio 1000 uidrange 100-200 lookup 300 RTNETLINK answers: File exists root@net-test:/# ip rule add prio 1000 uidrange 100-199 lookup 100 root@net-test:/# ip rule add prio 1000 uidrange 200-299 lookup 200 root@net-test:/# ip rule add prio 1000 uidrange 300-399 lookup 100 RTNETLINK answers: File exists Tested: https://android-review.googlesource.com/#/c/299980/Signed-off-by:
Lorenzo Colitti <lorenzo@google.com> Acked-by:
Maciej Żenczykowski <maze@google.com> Signed-off-by:
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Mintz, Yuval authored
Driver uses a union for copying data to & from management firmware when interacting with it. Problem is that the function always copies sizeof(union) while commit 2edbff8d ("qed: Learn resources from management firmware") is casting a union elements which is of smaller size [24-byte instead of 88-bytes]. Also, the union contains some inappropriate elements which increase its size [should have been 32-bytes]. While this shouldn't corrupt other PF messages to the MFW [as management firmware enforces permissions so that each PF is allowed to write only to its own mailbox] we fix this here as well. Fixes: 2edbff8d ("qed: Learn resources from management firmware") Signed-off-by:
Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by:
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Philippe Reynes authored
When moving from typhoon_get_settings to typhoon_getlink_ksettings in the commit f7a5537c ("net: 3com: typhoon: use new api ethtool_{get|set}_link_ksettings"), we use a local variable supported but we forgot to update the struct ethtool_link_ksettings with this value. We also initialize advertising to zero, because otherwise it may be uninitialized if no case of the switch (tp->xcvr_select) is used. Signed-off-by:
Philippe Reynes <tremyfr@gmail.com> Signed-off-by:
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by:Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: -
Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: -
Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by:Jes Sorensen <Jes.Sorensen@gmail.com> Signed-off-by:
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: -
David S. Miller authored
Joachim Eastwood says: ==================== stmmac: dwmac-rk: convert to standard PM/remove functions This patch set aims to remove the init/exit callbacks from the dwmac-rk driver and instead use standard PM callbacks. Eventually the init/exit callbacks will be deprecated and removed from all drivers dwmac-* except for dwmac-generic. Drivers will be refactored to use standard PM and remove callbacks. This conversion was pretty straight forward, but it would really nice if some chromium people could test suspend/resume with this patch set. ==================== Signed-off-by: -
Joachim Eastwood authored
Instead of adding hooks inside stmmac_platform it is better to just use the standard PM callbacks within the specific dwmac-driver. This only used by the dwmac-rk driver. This reverts commit cecbc556 ("stmmac: allow to split suspend/resume from init/exit callbacks"). Signed-off-by:
Joachim Eastwood <manabian@gmail.com> Signed-off-by:
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Joachim Eastwood authored
Since the rk_gmac_init() only calls another function move this function call into probe so rk_gmac_init() can be removed. Since commit cecbc556 ("stmmac: allow to split suspend/resume from init/exit callbacks") the init hook is no longer used in dwmac-rk so this can be removed. Signed-off-by:
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Joachim Eastwood authored
Convert the exit hook into a standard driver remove function as the hook doesn't really buy us anything extra. Eventually the exit hook will be deprecated in favor of the driver remove function. Signed-off-by:
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Joachim Eastwood authored
Use standard PM resume/suspend callbacks instead of the hooks in stmmac_platform. This gives the driver more control and flexibility when implementing PM functionality. The hooks in stmmac_platform also doesn't buy us anything extra. Signed-off-by:
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David S. Miller authored
Eric Dumazet says: ==================== tcp: tcp_get_info() locking changes This short series prepares tcp_get_info() for more detailed infos. In order to not slow down fast path, our goal is to use the normal socket spinlock instead of custom synchronization. All we need to ensure is that tcp_get_info() is not called with ehash lock, which might dead lock, since packet processing would acquire the spinlocks in reverse way. ==================== Signed-off-by: -
Eric Dumazet authored
We had various problems in the past in tcp_get_info() and used specific synchronization to avoid deadlocks. We would like to add more instrumentation points for TCP, and avoiding grabing socket lock in tcp_getinfo() was too costly. Being able to lock the socket allows to provide consistent set of fields. inet_diag_dump_icsk() can make sure ehash locks are not held any more when tcp_get_info() is called. We can remove syncp added in commit d654976c ("tcp: fix a potential deadlock in tcp_get_info()"), but we need to use lock_sock_fast() instead of spin_lock_bh() since TCP input path can now be run from process context. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Yuchung Cheng <ycheng@google.com> Acked-by:
Soheil Hassas Yeganeh <soheil@google.com> Acked-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Eric Dumazet authored
Being lockless in tcp_get_info() is hard, because we need to add specific synchronization in TCP fast path, like seqcount. Following patch will change inet_diag_dump_icsk() to no longer hold any lock for non listeners, so that we can properly acquire socket lock in get_tcp_info() and let it return more consistent counters. Signed-off-by:
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David S. Miller authored
Neil Armstrong says: ==================== ARM64: Add Internal PHY support for Meson GXL The Amlogic Meson GXL SoCs have an internal RMII PHY that is muxed with the external RGMII pins. In order to support switching between the two PHYs links, extended registers size for mdio-mux-mmioreg must be added. The DT related patches submitted as RFC in [3] will be sent in a separate patchset due to multiple patchsets and DTSI migrations. Changes since v2 RFC patchset at : [3] - Change phy Kconfig/Makefile alphabetic order - GXL dtsi cleanup Changes since original RFC patchset at : [2] - Remove meson8b experimental phy switching - Switch to mdio-mux-mmioreg with extennded size support - Add internal phy support for S905x and p231 - Add external PHY support for p230 [1] http://lkml.kernel.org/r/1477932286-27482-1-git-send-email-narmstrong@baylibre.com [2] http://lkml.kernel.org/r/1477060838-14164-1-git-send-email-narmstrong@baylibre.com [3] http://lkml.kernel.org/r/1477932987-27871-1-git-send-email-narmstrong@baylibre.com ==================== Signed-off-by:
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Neil Armstrong authored
Add driver for the Internal RMII PHY found in the Amlogic Meson GXL SoCs. This PHY seems to only implement some standard registers and need some workarounds to provide autoneg values from vendor registers. Some magic values are currently used to configure the PHY, and this a temporary setup until clarification about these registers names and registers fields are provided by Amlogic. Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Neil Armstrong authored
In order to support PHY switching on Amlogic GXL SoCs, add support for 16bit and 32bit registers sizes. Reviewed-by:
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David S. Miller authored
Sowmini Varadhan says: ==================== RDS: TCP: bug fixes A couple of bug fixes identified during testing. ==================== Signed-off-by: -
Sowmini Varadhan authored
The for() loop in rds_tcp_accept_one() assumes that the 0'th rds_tcp_conn_path is UP and starts multipath accepts at index 1. But this assumption may not always be true: if the 0'th path has failed (ERROR or DOWN state) an incoming connection request should be used to resurrect this path. Signed-off-by:
Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by:
Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by:
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Sowmini Varadhan authored
The socket argument passed to rds_tcp_tc_info() is a PF_RDS socket, so it is incorrect to report the address port info based on rds_getname() as part of TCP state report. Invoke inet_getname() for the t_sock associated with the rds_tcp_connection instead. Signed-off-by:
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- 08 Nov, 2016 3 commits
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Soheil Hassas Yeganeh authored
Do not set sk_err when dequeuing errors from the error queue. Doing so results in: a) Bugs: By overwriting existing sk_err values, it possibly hides legitimate errors. It is also incorrect when local errors are queued with ip_local_error. That happens in the context of a system call, which already returns the error code. b) Inconsistent behavior: When there are pending errors on the error queue, sk_err is sometimes 0 (e.g., for the first timestamp on the error queue) and sometimes set to an error code (after dequeuing the first timestamp). c) Suboptimality: Setting sk_err to ENOMSG on simple TX timestamps can abort parallel reads and writes. Removing this line doesn't break userspace. This is because userspace code cannot rely on sk_err for detecting whether there is something on the error queue. Except for ICMP messages received for UDP and RAW, sk_err is not set at enqueue time, and as a result sk_err can be 0 while there are plenty of errors on the error queue. For ICMP packets in UDP and RAW, sk_err is set when they are enqueued on the error queue, but that does not result in aborting reads and writes. For such cases, sk_err is only readable via getsockopt(SO_ERROR) which will reset the value of sk_err on its own. More importantly, prior to this patch, recvmsg(MSG_ERRQUEUE) has a race on setting sk_err (i.e., sk_err is set by sock_dequeue_err_skb without atomic ops or locks) which can store 0 in sk_err even when we have ICMP messages pending. Removing this line from sock_dequeue_err_skb eliminates that race. Signed-off-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
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David S. Miller authored
Jesper Dangaard Brouer says: ==================== qdisc and tx_queue_len cleanups for IFF_NO_QUEUE devices This patchset is a cleanup for IFF_NO_QUEUE devices. It will hopefully help userspace get a more consistent behavior when attaching qdisc to such virtual devices. ==================== Signed-off-by: -
Jesper Dangaard Brouer authored
It is a clear misconfiguration to attach a qdisc to a device with tx_queue_len zero, because some qdisc's (namely, pfifo, bfifo, gred, htb, plug and sfb) inherit/copy this value as their queue length. Why should the kernel catch such a misconfiguration? Because prior to introducing the IFF_NO_QUEUE device flag, userspace found a loophole in the qdisc config system that allowed them to achieve the equivalent of IFF_NO_QUEUE, which is to remove the qdisc code path entirely from a device. The loophole on older kernels is setting tx_queue_len=0, *prior* to device qdisc init (the config time is significant, simply setting tx_queue_len=0 doesn't trigger the loophole). This loophole is currently used by Docker[1] to get better performance and scalability out of the veth device. The Docker developers were warned[1] that they needed to adjust the tx_queue_len if ever attaching a qdisc. The OpenShift project didn't remember this warning and attached a qdisc, this were caught and fixed in[2]. [1] https://github.com/docker/libcontainer/pull/193 [2] https://github.com/openshift/origin/pull/11126 Instead of fixing every userspace program that used this loophole, and forgot to reset the tx_queue_len, prior to attaching a qdisc. Let's catch the misconfiguration on the kernel side. Signed-off-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
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