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path: root/drivers/net/ethernet/cavium/thunder/nic_main.c
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* net: thunderx: Pause frame supportSunil Goutham2016-11-251-0/+27
| | | | | | | | | Enable pause frames on both Rx and Tx side, configure pause interval e.t.c. Also support for enable/disable pause frames on Rx/Tx via ethtool has been added. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Configure RED and backpressure levelsSunil Goutham2016-11-251-0/+9
| | | | | | | | | This patch enables moving average calculation of Rx pkt's resources and configures RED and backpressure levels for both CQ and RBDR. Also initialize SQ's CQ_LIMIT properly. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Add ethtool support for supported ports and link modes.Thanneeru Srinivasulu2016-11-251-0/+1
| | | | | | Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@cavium.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Fix VF driver's interface statisticsSunil Goutham2016-11-161-0/+1
| | | | | | | | | | | | | | | | | This patch fixes multiple issues 1. Convert all driver statistics to percpu counters for accuracy. 2. To avoid multiple CQEs posted by a TSO packet appended to HW, TSO pkt's SQE has 'post_cqe' not set but a dummy SQE is added for getting HW transmit completion notification. This dummy SQE has 'dont_send' set and HW drops the pkt pointed to in this thus Tx drop counter increases. This patch fixes this by subtracting SW tx tso counter from HW Tx drop counter for actual packet drop counter. 3. Reset all individual queue's and VNIC HW stats when interface is going down. 4. Getrid off unnecessary counters in hot path. 5. Bringout all CQE error stats i.e both Rx and Tx. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Program LMAC credits based on MTUSunil Goutham2016-11-161-11/+25
| | | | | | | | | | | | | | | | Programming LMAC credits taking 9K frame size by default is incorrect as for an interface which is one of the many on the same BGX/QLM no of credits available will be less as Tx FIFO will be divided across all interfaces. So let's say a BGX with 40G interface and another BGX with multiple 10G, bandwidth of 10G interfaces will be effected when traffic is running on both 40G and 10G interfaces simultaneously. This patch fixes this issue by programming credits based on netdev's MTU. Also fixed configuring MTU to HW and added CQE counter for pkts which exceed this value. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2016-09-121-3/+8
|\ | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/mediatek/mtk_eth_soc.c drivers/net/ethernet/qlogic/qed/qed_dcbx.c drivers/net/phy/Kconfig All conflicts were cases of overlapping commits. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: thunderx: Fix for HW issue while padding TSO packetSunil Goutham2016-09-011-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | There is a issue in HW where-in while sending GSO sized pkts as part of TSO, if pkt len falls below configured min packet size i.e 60, NIC will zero PAD packet and also updates IP total length. Hence set this value to lessthan min pkt size of MAC + IP + TCP headers, BGX will anyway do the padding to transmit 64 byte pkt including FCS. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Configure tunnelling protocol parsingZyta Szpak2016-08-131-0/+21
| | | | | | | | | | | | | | | | This patch enables parsing of inner layers for tunnelled packets. Signed-off-by: Zyta Szpak <zr@semihalf.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Reset RXQ HW stats when interface is brought downJerin Jacob2016-08-131-0/+45
| | | | | | | | | | | | | | | | | | | | | | | | When SQ/TXQ is reclaimed i.e reset it's stats also automatically reset by HW. This is not the case with RQ. Also VF doesn't have write access to statistics counter registers. Hence a new Mbox msg is introduced which supports resetting RQ, SQ and full Qset stats. Currently only RQ stats are being reset using this mbox message. Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Improvement for MBX interface debug messagesRadoslaw Biernacki2016-08-131-6/+10
| | | | | | | | | | | | | | | | | | Adding debug messages in case of NACK for a mailbox message, also did small cleanups. Signed-off-by: Radoslaw Biernacki <rad@semihalf.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Add support for 16 LMACs of 83xxSunil Goutham2016-08-131-15/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | 83xx will have 4 BGX blocks i.e 16 LMACs, to avoid changing the same with every platform, nicpf struct elements which track LMAC related info are now allocated runtime based on platform's max possible BGX count. Also fixed configuring min packet size for all LMAC's supported on a platform. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Add RGMII interface type supportSunil Goutham2016-08-131-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds RGX/RGMII interface type support to BGX driver. This type of interface is supported by 81xx SOC. CN81XX VNIC has 8 VFs and max possible LMAC interfaces are 9, hence RGMII interface will not work if all DLMs are in BGX mode and all 8 LMACs are enabled Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Enable mailbox interrupts on 81xx/83xxSunil Goutham2016-08-131-38/+50
| | | | | | | | | | | | | | | | | | | | 88xx has 128 VFs, 81xx has 8 VFs and 83xx will have 32VFs. Made changes to PF driver such that mailbox interrupt enable registers are configuired based on number of VFs HW supports. Also cleanedup mailbox irq handler registration code. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Enable CQE_RX desc's extension fieldsSunil Goutham2016-08-131-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | Unlike 88xx, CQE_RX descriptor's tunnelling extension i.e CQE_RX2_S is always enabled on 81xx/83xx and HW does insert these fields into CQE_RX. As a result receive buffer addresses will now be present at 7th word of CQE_RX instead of 6th. Enable CQE_RX2_S on 88xx pass 2.x as well. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Set queue count based on number of CPUsSunil Goutham2016-08-131-0/+6
| | | | | | | | | | | | | | | | | | | | | | 81xx has only 4 CPUs, so it doesn't make sense to initialize entire Qset i.e 8 queues by default. Made changes to queue initialization to init queues equal to number of CPUs or 8 queues whichever is lesser. Also this will be applicable to VMs with VNIC VF attached and having less VCPUs Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Add support for 81xx and 83xx chipsSunil Goutham2016-08-131-17/+70
| | | | | | | | | | | | | | | | This patch adds info on HW maximums of 81xx/83xx and also configures receive and transmit datapaths accordingly. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: Moved HW capability info from macros to structureSunil Goutham2016-08-131-17/+79
|/ | | | | | | | | | Current driver has most of the HW maximums info like no of channels, traffic limiters, RSS indices e.t.c in the form of macros. These have been moved into a 'hw_info' structure so that support for VNIC on newer chips with different set of HW maximums can be added. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Fix TL4 configuration for secondary QsetsSunil Goutham2016-06-291-3/+13
| | | | | | | | | | | | TL4 calculation for a given SQ of secondary Qsets is incorrect and goes out of bounds and also for some SQ's TL4 chosen will transmit data via a different BGX interface and not same as primary Qset's interface. This patch fixes this issue. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Fix for Qset error due to CQ fullSunil Goutham2016-02-251-0/+6
| | | | | | | | | | | | | | | On Thunderx pass 1.x and pass2 due to a HW errata default CQ DROP_LEVEL of 0x80 is not sufficient to avoid CQ_WR_FULL Qset error when packets are being received at >20Mpps resulting in complete stall of packet reception. This patch will configure it to 0x100 which is what is expected by HW on Thunderx. On future passes of thunderx and other chips HW default/reset value will be 0x100 or higher hence not overwritten. Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-12-171-21/+18
|\ | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/geneve.c Here we had an overlapping change, where in 'net' the extraneous stats bump was being removed whilst in 'net-next' the final argument to udp_tunnel6_xmit_skb() was being changed. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: thunderx: Correctly distinguish between VF and LMAC countPavel Fedin2015-12-081-21/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit bc69fdfc6c13 ("net: thunderx: Enable BGX LMAC's RX/TX only after VF is up") introduces lmac_cnt member and starts verifying VF number against it. This is plain wrong, and works only because currently we have hardcoded 1:1 mapping between VFs and LMACs, and in this case num_vf_en and lmac_cnt are always equal. However in future this may change, and the code will badly misbehave. The worst consequence of this is failure to deliver link status messages, causing VFs to go defunct because since commit 0b72a9a1060e ("net: thunderx: Switchon carrier only upon interface link up") VF will not fully bring itself up without it. This patch fixes the potential problem by doing VF number checks against the num_vf_en. Since lmac_cnt is not used anywhere else, it is removed. Additionally some duplicated code is factored out into nic_enable_vf() Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: thunderx: HW TSO support for pass-2 hardwareSunil Goutham2015-12-111-8/+3
|/ | | | | | | | | | This adds support for offloading TCP segmentation to HW in pass-2 revision of hardware. Both driver level SW TSO for pass1.x chips and HW TSO for pass-2 chip will co-exist. Modified SQ descriptor structures to reflect pass-2 hw implementation. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Enable BGX LMAC's RX/TX only after VF is upSunil Goutham2015-12-021-1/+19
| | | | | | | | | | | | | Enable or disable BGX LMAC's RX/TX based on corresponding VF's status. If otherwise, when multiple LMAC's physical link is up then packets from all LMAC's whose corresponding VF is not yet initialized will get forwarded to VF0. This is due to VNIC's default configuration where CPI, RSSI e.t.c point to VF0/QSET0/RQ0. This patch will prevent multiple copies of packets on VF0. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Wait for delayed work to finish before destroying itThanneeru Srinivasulu2015-12-021-2/+1
| | | | | | | | | While VNIC or BGX driver teardown, wait for already scheduled delayed work to finish before destroying it. Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@caviumnetworks.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Incorporate pass2 silicon CPI index configuration changesThanneeru Srinivasulu2015-10-251-6/+23
| | | | | | | | | | Add support for ThunderX pass2 CPI and MPI configuration changes. MPI_ALG is not enabled i.e MCAM parsing is disabled. Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@caviumnetworks.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Rewrite silicon revision tests.David Daney2015-10-251-4/+6
| | | | | | | | | | | | | | The test for pass-1 silicon was incorrect, it should be for all revisions less than 8. Also the revision is already present in the pci_dev, so there is no need to read and keep a private copy. Remove rev_id and code to read it from struct nicpf. Create new static inline function pass1_silicon() to be used to testing the silicon version. Use pass1_silicon() for revision checks, this will be more widely used in follow on patches. Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Remove PF soft reset.Sunil Goutham2015-10-251-3/+0
| | | | | | | | | In some silicon revisions, the soft reset clobbers PCI config space, so quit doing the reset. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Support for internal loopback modeSunil Goutham2015-08-301-0/+21
| | | | | | | | | | | | | | | | | Support for setting VF's corresponding BGX LMAC in internal loopback mode. This mode can be used for verifying basic HW functionality such as packet I/O, RX checksum validation, CQ/RBDR interrupts, stats e.t.c. Useful when DUT has no external network connectivity. 'loopback' mode can be enabled or disabled via ethtool. Note: This feature is not supported when no of VFs enabled are morethan no of physical interfaces i.e active BGX LMACs Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Support for upto 96 queues for a VFSunil Goutham2015-08-301-19/+154
| | | | | | | | | | | | | | | | | | This patch adds support for handling multiple qsets assigned to a single VF. There by increasing no of queues from earlier 8 to max no of CPUs in the system i.e 48 queues on a single node and 96 on dual node system. User doesn't have option to assign which Qsets/VFs to be merged. Upon request from VF, PF assigns next free Qsets as secondary qsets. To maintain current behavior no of queues is kept to 8 by default which can be increased via ethtool. If user wants to unbind NICVF driver from a secondary Qset then it should be done after tearing down primary VF's interface. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Support for HW VLAN strippingSunil Goutham2015-08-301-0/+4
| | | | | | | | | | | | | | | | | | | This patch configures HW to strip 802.1Q header if found in a receiving packet. The stripped VLAN ID and TCI information is passed on to software via CQE_RX. Also sets netdev's 'vlan_features' so that other HW offload features can be used for tagged packets. This offload feature can be enabled or disabled via ethtool. Network stack normally ignores RPS for 802.1Q packets and hence low throughput. With this offload enabled throughput for tagged packets will be almost same as normal packets. Note: This patch doesn't enable HW VLAN insertion for transmit packets. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: rework mac address handlingAleksey Makarov2015-06-021-7/+1
| | | | | | | | | | | This fixes sparse message: drivers/net/ethernet/cavium/thunder/nicvf_main.c:385:40: sparse: cast to restricted __le64 Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: thunderx: Cleanup duplicate NODE_ID macros, add nic_get_node_id()Robert Richter2015-06-021-3/+1
| | | | | | | | | | | | There are duplicate NODE_ID macro definitions. Move all of them to nic.h for usage in nic and bgx driver and introduce nic_get_node_id() helper function. This patch also fixes 64bit mask which should have been ULL by reworking the node calculation. Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Adding support for Cavium ThunderX network controllerSunil Goutham2015-05-271-0/+940
This patch adds support for the Cavium ThunderX network controller. The driver is on the pci bus and thus requires the Thunder PCIe host controller driver to be enabled. Signed-off-by: Maciej Czekaj <mjc@semihalf.com> Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com> Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: Kamil Rytarowski <kamil@semihalf.com> Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@caviumnetworks.com> Signed-off-by: Sruthi Vangala <svangala@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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