aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c (follow)
AgeCommit message (Collapse)AuthorFilesLines
2018-08-07net: thunderx: mark expected switch fall-throughGustavo A. R. Silva1-0/+1
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 114781 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-29net: ethernet: cavium: Correct Cavium Thunderx NIC driver names accordingly to module nameVadim Lomovtsev1-1/+1
It was found that ethtool provides unexisting module name while it queries the specified network device for associated driver information. Then user tries to unload that module by provided module name and fails. This happens because ethtool reads value of DRV_NAME macro, while module name is defined at the driver's Makefile. This patch is to correct Cavium CN88xx Thunder NIC driver names (DRV_NAME macro) 'thunder-nicvf' to 'nicvf' and 'thunder-nic' to 'nicpf', sync bgx and xcv driver names accordingly to their module names. Signed-off-by: Vadim Lomovtsev <Vadim.Lomovtsev@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-16net: thunderx: add timestamping supportSunil Goutham1-1/+28
This adds timestamping support for both receive and transmit paths. On the receive side no filters are supported i.e either all pkts will get a timestamp appended infront of the packet or none. On the transmit side HW doesn't support timestamp insertion but only generates a separate CQE with transmitted packet's timestamp. Also HW supports only one packet at a time for timestamping on the transmit side. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@cavium.com> Acked-by: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-02net: thunderx: Add basic XDP supportSunil Goutham1-6/+20
Adds basic XDP support i.e attaching a BPF program to an interface. Also takes care of allocating separate Tx queues for XDP path and for network stack packet transmission. This patch doesn't support handling of any of the XDP actions, all are treated as XDP_PASS i.e packets will be handed over to the network stack. Changes also involve allocating one receive buffer per page in XDP mode and multiple in normal mode i.e when no BPF program is attached. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-02net: thunderx: Support for page recyclingSunil Goutham1-1/+2
Adds support for page recycling for allocating receive buffers to reduce cost of refilling RBDR ring. Also got rid of using compound pages when pagesize is 4K, only order-0 pages now. Only page is recycled, DMA mappings still needs to be done for every receive buffer allocated due to following constraints - Cannot have just one receive buffer per 64KB page. - There is just one buffer ring shared across 8 Rx queues, so buffers of same page can go to any Rx queue. - HW gives buffer address where packet has been DMA'ed and not the index into buffer ring. This makes it not possible to resue DMA mapping info. So unfortunately have to go through costly mapping route for every buffer. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25net: thunderx: Support to configure queue sizes from ethtoolSunil Goutham1-2/+37
Adds support to set Rx/Tx queue sizes from ethtool. Fixes an issue with retrieving queue size. Also sets SQ's CQ_LIMIT based on configured Tx queue size such that HW doesn't process SQEs when there is no sufficient space in CQ. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-11net: thunderx: Make hfunc variable const type in nicvf_set_rxfh()Robert Richter1-1/+1
>From struct ethtool_ops: int (*set_rxfh)(struct net_device *, const u32 *indir, const u8 *key, const u8 hfunc); Change function arg of hfunc to const type. V2: Fixed indentation. Signed-off-by: Robert Richter <rrichter@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10net: nicvf: use new api ethtool_{get|set}_link_ksettingsPhilippe Reynes1-25/+31
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-25net: thunderx: Pause frame supportSunil Goutham1-0/+51
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>
2016-11-25net: thunderx: Add ethtool support for supported ports and link modes.Thanneeru Srinivasulu1-3/+33
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>
2016-11-16net: thunderx: Fix VF driver's interface statisticsSunil Goutham1-46/+59
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>
2016-08-18net: thunderx: Fix OOPs with ethtool --register-dumpDavid Daney1-1/+4
The ethtool_ops .get_regs function attempts to read the nonexistent register NIC_QSET_SQ_0_7_CNM_CHG, which produces a "bus error" type OOPs. Fix by not attempting to read, and removing the definition of, NIC_QSET_SQ_0_7_CNM_CHG. A zero is written into the register dump to keep the layout unchanged. Signed-off-by: David Daney <david.daney@cavium.com> Cc: <stable@vger.kernel.org> # 4.4.x- Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-11net, thunderx: Add TX timeout and RX buffer alloc failure stats.Thanneeru Srinivasulu1-0/+2
When system is low on atomic memory, too many error messages are logged. Since this is not a total failure but a simple switch to non-atomic allocation better to have a stat. Also add a stat for reset, kicked due to transmit watchdog timeout. 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>
2015-12-02net: thunderx: Switchon carrier only upon interface link upSunil Goutham1-1/+15
Call netif_carrier_on() only if interface's link is up. Switching this on upon IFF_UP by default, is causing issues with ethernet channel bonding in LACP mode. Initial NETDEV_CHANGE notification was being skipped. Also fixed some issues with link/speed/duplex reporting via ethtool. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-30net: thunderx: Support for upto 96 queues for a VFSunil Goutham1-37/+97
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>
2015-08-30net: thunderx: Receive hashing HW offload supportSunil Goutham1-8/+6
Adding support for receive hashing HW offload by using RSS_ALG and RSS_TAG fields of CQE_RX descriptor. Also removed dependency on minimum receive queue count to configure RSS so that hash is always generated. This hash is used by RPS logic to distribute flows across multiple CPUs. Offload can be disabled via ethtool. Signed-off-by: Robert Richter <rrichter@cavium.com> 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>
2015-08-30net: thunderx: Add receive error stats reporting via ethtoolSunil Goutham1-5/+29
Added ethtool support to dump receive packet error statistics reported in CQE. Also made some small fixes 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>
2015-07-29net: thunderx: Wakeup TXQ only if CQE_TX are processedSunil Goutham1-1/+2
Previously TXQ is wakedup whenever napi is executed and irrespective of if any CQE_TX are processed or not. Added 'txq_stop' and 'txq_wake' counters to aid in debugging if there are any future issues. 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>
2015-07-29net: thunderx: Fix memory leak when changing queue countSunil Goutham1-9/+14
Fix for memory leak when changing queue/channel count via ethtool 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>
2015-06-02net: thunderx: fix nicvf_set_rxfh()Aleksey Makarov1-2/+1
This fixes a copypaste bug that was discovered by a static analysis tool: The patch 4863dea3fab0: "net: Adding support for Cavium ThunderX network controller" from May 26, 2015, leads to the following static checker warning: drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c:517 nicvf_set_rxfh() warn: we tested 'hkey' before and it was 'false' drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c 506 /* We do not allow change in unsupported parameters */ 507 if (hkey || ^^^^ We return here. 508 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 509 return -EOPNOTSUPP; 510 511 rss->enable = true; 512 if (indir) { 513 for (idx = 0; idx < rss->rss_size; idx++) 514 rss->ind_tbl[idx] = indir[idx]; 515 } 516 517 if (hkey) { ^^^^ So this is dead code. 518 memcpy(rss->key, hkey, RSS_HASH_KEY_SIZE * sizeof(u64)); 519 nicvf_set_rss_key(nic); 520 } 521 522 nicvf_config_rss(nic); 523 return 0; 524 } regards, dan carpenter Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-27net: Adding support for Cavium ThunderX network controllerSunil Goutham1-0/+601
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>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.