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2016-11-07udp: do fwd memory scheduling on dequeuePaolo Abeni9-33/+63
A new argument is added to __skb_recv_datagram to provide an explicit skb destructor, invoked under the receive queue lock. The UDP protocol uses such argument to perform memory reclaiming on dequeue, so that the UDP protocol does not set anymore skb->desctructor. Instead explicit memory reclaiming is performed at close() time and when skbs are removed from the receive queue. The in kernel UDP protocol users now need to call a skb_recv_udp() variant instead of skb_recv_datagram() to properly perform memory accounting on dequeue. Overall, this allows acquiring only once the receive queue lock on dequeue. Tested using pktgen with random src port, 64 bytes packet, wire-speed on a 10G link as sender and udp_sink as the receiver, using an l4 tuple rxhash to stress the contention, and one or more udp_sink instances with reuseport. nr sinks vanilla patched 1 440 560 3 2150 2300 6 3650 3800 9 4450 4600 12 6250 6450 v1 -> v2: - do rmem and allocated memory scheduling under the receive lock - do bulk scheduling in first_packet_length() and in udp_destruct_sock() - avoid the typdef for the dequeue callback Suggested-by: Eric Dumazet <edumazet@google.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07net/sock: add an explicit sk argument for ip_cmsg_recv_offset()Paolo Abeni4-7/+8
So that we can use it even after orphaining the skbuff. Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07net: Update raw socket bind to consider l3 domainDavid Ahern1-1/+9
Binding a raw socket to a local address fails if the socket is bound to an L3 domain: $ vrf-test -s -l 10.100.1.2 -R -I red error binding socket: 99: Cannot assign requested address Update raw_bind to look consider if sk_bound_dev_if is bound to an L3 domain and use inet_addr_type_table to lookup the address. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07arm64: dts: NS2: add AMAC ethernet supportJon Mason2-0/+17
Add support for the AMAC ethernet to the Broadcom Northstar2 SoC device tree Signed-off-by: Jon Mason <jon.mason@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07net: ethernet: bgmac: add NS2 supportJon Mason3-2/+58
Add support for the variant of amac hardware present in the Broadcom Northstar2 based SoCs. Northstar2 requires an additional register to be configured with the port speed/duplexity (NICPM). This can be added to the link callback to hide it from the instances that do not use this. Also, clearing of the pending interrupts on init is required due to observed issues on some platforms. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07net: ethernet: bgmac: device tree phy enablementJon Mason4-25/+56
Change the bgmac driver to allow for phy's defined by the device tree Signed-off-by: Jon Mason <jon.mason@broadcom.com> Acked-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07Documentation: devicetree: net: add NS2 bindings to amacJon Mason1-5/+11
Clean-up the documentation to the bgmac-amac driver, per suggestion by Rob Herring, and add details for NS2 support. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07net: phy: broadcom: Add BCM54810 PHY entryJon Mason3-2/+67
The BCM54810 PHY requires some semi-unique configuration, which results in some additional configuration in addition to the standard config. Also, some users of the BCM54810 require the PHY lanes to be swapped. Since there is no way to detect this, add a device tree query to see if it is applicable. Inspired-by: Vikas Soni <vsoni@broadcom.com> Signed-off-by: Jon Mason <jon.mason@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07Documentation: devicetree: add PHY lane swap bindingJon Mason1-0/+4
Add the documentation for PHY lane swapping. This is a boolean entry to notify the phy device drivers that the TX/RX lanes need to be swapped. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-07net: phy: broadcom: add bcm54xx_auxctl_readJon Mason2-0/+11
Add a helper function to read the AUXCTL register for the BCM54xx. This mirrors the bcm54xx_auxctl_write function already present in the code. Signed-off-by: Jon Mason <jon.mason@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: remove unused priv dev memberJoachim Eastwood1-2/+0
The dev member of struct sti_dwmac is not used anywhere in the driver so lets just remove it. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: clean up and rename sti_dwmac_initJoachim Eastwood1-6/+4
Rename sti_dwmac_init to sti_dwmac_set_mode which is a better description for what it really does. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: move clk_prepare_enable out of init and add error handlingJoachim Eastwood1-4/+15
Add clock error handling to probe and in the process move clock enabling out of sti_dwmac_init() to make this easier. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: move st, gmac_en parsing to sti_dwmac_parse_dataJoachim Eastwood1-3/+3
The sti_dwmac_init() function is called both from probe and resume. Since DT properties doesn't change between suspend/resume cycles move parsing of this parameter into sti_dwmac_parse_data() where it belongs. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: add PM ops and resume functionJoachim Eastwood1-10/+37
Implement PM callbacks and driver remove in the driver instead of relying on the init/exit hooks in stmmac_platform. This gives the driver more flexibility in how the code is organized. Eventually the init/exit callbacks will be deprecated in favor of the standard PM callbacks and driver remove function. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: remove clk NULL checksJoachim Eastwood1-6/+4
Since sti_dwmac_parse_data() sets dwmac->clk to NULL if not clock was provided in DT and NULL is a valid clock there is no need to check for NULL before using this clock. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-06stmmac: dwmac-sti: remove useless of_node checkJoachim Eastwood1-3/+0
Since dwmac-sti is a DT only driver checking for OF node is not necessary. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-05mlxsw: Remove unused including <generated/utsrelease.h>Wei Yongjun3-3/+0
Remove including <generated/utsrelease.h> that don't need it. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04ixgbevf: Handle previously-freed msix_entriesMark Rustad1-2/+7
The msix_entries memory can be freed by a previous suspend or remove, so don't crash on close when it isn't there. Also only clear the interrupts when the interface is up, because there aren't any when it is not up. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: ixgbe_atr() compute l4_proto only if non-paged data has network/transport headersSowmini Varadhan1-0/+17
For some Tx paths (e.g., tpacket_snd()), ixgbe_atr may be passed down an sk_buff that has the network and transport header in the paged data, so it needs to make sure these headers are available in the headlen bytes to calculate the l4_proto. This patch expect that network and transport headers are already available in the non-paged header dat. The assumption is that the caller has set this up if l4_proto based Tx steering is desired. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Reviewed-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: ixgbe_atr() should access udp_hdr(skb) only for UDP packetsSowmini Varadhan1-1/+1
Commit 9f12df906cd8 ("ixgbe: Store VXLAN port number in network order") incorrectly checks for hdr.ipv4->protocol != IPPROTO_UDP in ixgbe_atr(). This check should be for "==" instead. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Reviewed-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Correct X550 phy IDDon Skidmore2-2/+4
We were using an old Alpha version of the X550 phy ID. This was leading to unnecessary queries of the PHY. I removed the old ID (which shouldn't be on any HW) and add the two that are. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Add X553 FW ALEF supportDon Skidmore3-97/+255
This patch add X553 FW ALEF support for B0. ALEF is the new unified FW. This contains updated register defines for ALEF speed configuration. Likewise it also removes the AN_CNTL_8 usage from the native SFI flow as it is no longer supported by FW. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: set device if before calling get_invariantsEmil Tantilov1-4/+6
Fix an issue where set_phy_power was NULL for X550 copper devices because get_invariants was called before hw->device_id was set. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: use link instead of I2C combined abstractionEmil Tantilov5-90/+124
Introduce ixgbe_link_operations struct with the following changes: read_i2c_combined => read_link read_i2c_combined_unlocked => read_link_unlocked write_i2c_combined => write_link write_i2c_combined_unlocked => write_link_unlocked This will allow X550EM_a to override these methods for MDIO access while X550EM_x provides methods to use I2C combined access. This also adds a new structure, ixgbe_link_info, to hold information about the link. Initially this is just method pointers and a bus address. The functions involved in combined I2C accesses were moved from ixgbe_phy.c to ixgbe_x550.c. The underlying functions that carry out the combined I2C accesses were left in ixgbe_phy.c because they share some functions with other I2C methods. v2 - set hw->link.ops in probe. v3 - check ii->link_ops before setting it since we don't have it for all devices. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: remove SFP ixfi supportEmil Tantilov1-65/+11
Remove SFP ixfi code since there is no HW that currently supports it. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Handle previously-freed msix_entriesMark Rustad1-0/+3
The msix_entries memory can be freed by a previous suspend or remove, so don't crash on close when it isn't there. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Add X553 PHY FC autoneg supportDon Skidmore7-8/+232
This patch adds X553 flow control auto negotiation for fiber and backplain. To enable this new function pointers were added as well as creating a function to dynamically set function pointer we can't define only on MAC type. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: fix link status check for copper X550emEmil Tantilov1-8/+13
Read the PHY register twice in order to get the correct value for autoneg_status. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: do not use ixgbe specific mdio definesEmil Tantilov3-56/+33
Replace some ixgbe specific MDIO defines with their equivalent from the kernel. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Update setup PHY link to unset all speedsDon Skidmore1-39/+38
This patch updates ixgbe_setup_phy_link_generic to set/unset auto-negotiation for all speeds. This ensures that unsupported speeds are unset. This is necessary since the PHY NVM may advertise unsupported speeds. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Add support to retrieve and store LED link activeDon Skidmore8-2/+57
This patch adds support to get the LED link active via the LEDCTL register. If the LEDCTL register does not have LED link active (LED mode field = 0x0100) set then default LED link active returned. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04ixgbe: Add X552 iXFI configuration helper functionDon Skidmore1-34/+52
X553 doesn't need all the initialization that X552 did for iXFI. This patch will allow native SPI SFP+ to work with X553 devices. Future patches will add additional configuration as needed. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-11-04nfp: add support for offload of XDP programsJakub Kicinski6-6/+139
Most infrastructure can be reused, provide separate handling of context offsets and exit codes. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: remove unnecessary parameters from nfp_net_bpf_offload()Jakub Kicinski3-7/+3
nfp_net_bpf_offload() takes all .setup_tc() parameters but it doesn't use them at the moment. Remove unnecessary ones to make it possible for XDP to reuse this function. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: add XDP support in the driverJakub Kicinski4-101/+449
Add XDP support. Separate stack's and XDP's TX rings logically. Add functions for handling XDP_TX and cleanup of XDP's TX rings. For XDP allocate all RX buffers as separate pages and map them with DMA_BIDIRECTIONAL. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04debugfs: constify argument to debugfs_real_fops()Jakub Kicinski1-1/+2
seq_file users can only access const version of file pointer, because the ->file member of struct seq_operations is marked as such. Make parameter to debugfs_real_fops() const. CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> CC: Nicolai Stange <nicstange@gmail.com> CC: Christian Lamparter <chunkeey@gmail.com> CC: LKML <linux-kernel@vger.kernel.org> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: reorganize nfp_net_rx() to get packet offsets earlyJakub Kicinski1-26/+30
Calculate packet offsets early in nfp_net_rx() so that we will be able to use them in upcoming XDP handler. While at it move relevant variables into the loop scope. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: add support for ethtool .set_channelsJakub Kicinski4-22/+123
Allow changing the number of rings via ethtool .set_channels API. Runtime reconfig needs to be extended to handle number of rings. We need to be able to activate interrupt vectors before rings are assigned to them. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: move RSS indirection table init into a separate functionJakub Kicinski1-5/+10
We will need to rerun the initialization of the RSS indirection table after the number of rings is changed. Move the code to a separate function. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: add helper to reassign rings to IRQ vectorsJakub Kicinski1-24/+16
Instead of fixing ring -> vector relations up in ring swap functions put the reassignment into a helper function which will reinit all links. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: loosen relation between rings and IRQs vectorsJakub Kicinski1-6/+6
Upcoming XDP support will break the assumption that one can iterate over IRQ vectors to get to all the rings easily. Use nn->.x_ring arrays directly. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: reuse ring helpers on .ndo_open() pathJakub Kicinski1-40/+20
Ring allocation helpers encapsulate all ring allocation and initialization steps nicely. Reuse them on .ndo_open() path. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: rename ring allocation helpersJakub Kicinski1-13/+13
"Shadow" in ring helpers used to mean that the helper will allocate rings without touching existing configuration, this was used for reconfiguration while the device was running. We will soon use the same helpers for .ndo_open() path, so replace "shadow" with "ring_set". No functional changes. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: centralize runtime reconfiguration logicJakub Kicinski3-119/+118
All functions which need to reallocate ring resources at runtime look very similar. Centralize that logic into a separate function. Encapsulate configuration parameters in a structure. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04nfp: add support for ethtool .get_channelsJakub Kicinski1-0/+16
Report number of rings via ethtool .get_channels API. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04amd-xgbe: Prepare for supporting PCI devicesLendacky, Thomas6-510/+755
Update the driver framework to separate out platform/ACPI specific code from general code during device initialization. This will allow for the introduction of PCI device support. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04amd-xgbe: Update how to determine DMA channel statusLendacky, Thomas3-21/+43
Tx and Rx DMA channel status determiniation is different depending on the version of the hardware. Update the channel status processing code to account for the change. Also, reduce the timeout value used when stopping the channels. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04amd-xgbe: Support for 64-bit management counter registersLendacky, Thomas2-10/+27
Add support for reading all management counter registers as 64-bit values. The indication of whether to read the high 32-bits to form a 64-bit value is indicated in the version data. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-04amd-xgbe: Prepare for a new PCS register access methodLendacky, Thomas4-19/+119
Prepare the code to be able to support accessing of the PCS registers in a new way, while maintaining the current access method. Provide a version specific field that indicates the method to use. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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