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path: root/hw/net/igb_core.c
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2023-11-13igb: Add a VF reset handlerCédric Le Goater
Export the igb_vf_reset() helper routine from the PF model to let the IGBVF model implement its own device reset. Cc: Akihiko Odaki <akihiko.odaki@daynix.com> Suggested-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Cédric Le Goater <clg@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18igb: packet-split descriptors supportTomasz Dzieciol
Packet-split descriptors are used by Linux VF driver for MTU values from 2048 Signed-off-by: Tomasz Dzieciol <t.dzieciol@partner.samsung.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18igb: add IPv6 extended headers traffic detectionTomasz Dzieciol
Signed-off-by: Tomasz Dzieciol <t.dzieciol@partner.samsung.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18igb: RX payload guest writting refactoringTomasz Dzieciol
Refactoring is done in preparation for support of multiple advanced descriptors RX modes, especially packet-split modes. Signed-off-by: Tomasz Dzieciol <t.dzieciol@partner.samsung.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18igb: RX descriptors guest writting refactoringTomasz Dzieciol
Refactoring is done in preparation for support of multiple advanced descriptors RX modes, especially packet-split modes. Signed-off-by: Tomasz Dzieciol <t.dzieciol@partner.samsung.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18igb: rename E1000E_RingInfo_stTomasz Dzieciol
Rename E1000E_RingInfo_st and E1000E_RingInfo according to qemu typdefs guide. Signed-off-by: Tomasz Dzieciol <t.dzieciol@partner.samsung.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18igb: remove TCP ACK detectionTomasz Dzieciol
TCP ACK detection is no longer present in igb. Signed-off-by: Tomasz Dzieciol <t.dzieciol@partner.samsung.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18tap: Add USO support to tap device.Andrew Melnychenko
Passing additional parameters (USOv4 and USOv6 offloads) when setting TAP offloads Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com> Signed-off-by: Andrew Melnychenko <andrew@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-07-07igb: Remove obsolete workaround for WindowsAkihiko Odaki
I confirmed it works with Windows even without this workaround. It is likely to be a mistake so remove it. Fixes: 3a977deebe ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Clear-on-read ICR when ICR.INTA is setAkihiko Odaki
For GPIE.NSICR, Section 7.3.2.1.2 says: > ICR bits are cleared on register read. If GPIE.NSICR = 0b, then the > clear on read occurs only if no bit is set in the IMS or at least one > bit is set in the IMS and there is a true interrupt as reflected in > ICR.INTA. e1000e does similar though it checks for CTRL_EXT.IAME, which does not exist on igb. Suggested-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Notify only new interruptsAkihiko Odaki
This follows the corresponding change for e1000e. This fixes: tests/avocado/netdev-ethtool.py:NetDevEthtool.test_igb Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Implement Tx timestampAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Implement Rx PTP2 timestampAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Implement igb-specific oversize checkAkihiko Odaki
igb has a configurable size limit for LPE, and uses different limits depending on whether the packet is treated as a VLAN packet. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Filter with the second VLAN tag for extended VLANAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Strip the second VLAN tag for extended VLANAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Implement Tx SCTP CSOAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Implement Rx SCTP CSOAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Use UDP for RSS hashAkihiko Odaki
e1000e does not support using UDP for RSS hash, but igb does. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Implement MSI-X single vector modeAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Rename a variable in igb_receive_internal()Akihiko Odaki
Rename variable "n" to "causes", which properly represents the content of the variable. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Clear EICR bits for delayed MSI-X interruptsAkihiko Odaki
Section 7.3.4.1 says: > When auto-clear is enabled for an interrupt cause, the EICR bit is > set when a cause event mapped to this vector occurs. When the EITR > Counter reaches zero, the MSI-X message is sent on PCIe. Then the > EICR bit is cleared and enabled to be set by a new cause event Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Fix igb_mac_reg_init coding style alignmentAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Add more definitions for Tx descriptorAkihiko Odaki
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Read DCMD.VLE of the first Tx descriptorAkihiko Odaki
Section 7.2.2.3 Advanced Transmit Data Descriptor says: > For frames that spans multiple descriptors, all fields apart from > DCMD.EOP, DCMD.RS, DCMD.DEXT, DTALEN, Address and DTYP are valid only > in the first descriptors and are ignored in the subsequent ones. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Remove gotoAkihiko Odaki
The goto is a bit confusing as it changes the control flow only if L4 protocol is not recognized. It is also different from e1000e, and noisy when comparing e1000e and igb. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Always log status after building rx metadataAkihiko Odaki
Without this change, the status flags may not be traced e.g. if checksum offloading is disabled. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23e1000x: Rename TcpIpv6 into TcpIpv6ExAkihiko Odaki
e1000e and igb employs NetPktRssIpV6TcpEx for RSS hash if TcpIpv6 MRQC bit is set. Moreover, igb also has a MRQC bit for NetPktRssIpV6Tcp though it is not implemented yet. Rename it to TcpIpv6Ex to avoid confusion. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23e1000x: Share more Rx filtering logicAkihiko Odaki
This saves some code and enables tracepoint for e1000's VLAN filtering. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Always copy ethernet headerAkihiko Odaki
igb_receive_internal() used to check the iov length to determine copy the iovs to a contiguous buffer, but the check is flawed in two ways: - It does not ensure that iovcnt > 0. - It does not take virtio-net header into consideration. The size of this copy is just 22 octets, which can be even less than the code size required for checks. This (wrong) optimization is probably not worth so just remove it. Removing this also allows igb to assume aligned accesses for the ethernet header. Fixes: 3a977deebe ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23net/net_rx_pkt: Use iovec for net_rx_pkt_set_protocols()Akihiko Odaki
igb does not properly ensure the buffer passed to net_rx_pkt_set_protocols() is contiguous for the entire L2/L3/L4 header. Allow it to pass scattered data to net_rx_pkt_set_protocols(). Fixes: 3a977deebe ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Clear IMS bits when committing ICR accessAkihiko Odaki
The datasheet says contradicting statements regarding ICR accesses so it is not reliable to determine the behavior of ICR accesses. However, e1000e does clear IMS bits when reading ICR accesses and Linux also expects ICR accesses will clear IMS bits according to: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/net/ethernet/intel/igb/igb_main.c?h=v6.2#n8048 Fixes: 3a977deebe ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Do not require CTRL.VME for tx VLAN taggingAkihiko Odaki
While the datasheet of e1000e says it checks CTRL.VME for tx VLAN tagging, igb's datasheet has no such statements. It also says for "CTRL.VLE": > This register only affects the VLAN Strip in Rx it does not have any > influence in the Tx path in the 82576. (Appendix A. Changes from the 82575) There is no "CTRL.VLE" so it is more likely that it is a mistake of CTRL.VME. Fixes: fba7c3b788 ("igb: respect VMVIR and VMOLR for VLAN") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23igb: Fix Rx packet type encodingAkihiko Odaki
igb's advanced descriptor uses a packet type encoding different from one used in e1000e's extended descriptor. Fix the logic to encode Rx packet type accordingly. Fixes: 3a977deebe ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23e1000x: Fix BPRC and MPRCAkihiko Odaki
Before this change, e1000 and the common code updated BPRC and MPRC depending on the matched filter, but e1000e and igb decided to update those counters by deriving the packet type independently. This inconsistency caused a multicast packet to be counted twice. Updating BPRC and MPRC depending on are fundamentally flawed anyway as a filter can be used for different types of packets. For example, it is possible to filter broadcast packets with MTA. Always determine what counters to update by inspecting the packets. Fixes: 3b27430177 ("e1000: Implementing various counters") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23hw/net/net_tx_pkt: Decouple interface from PCIAkihiko Odaki
This allows to use the network packet abstractions even if PCI is not used. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-23e1000e: Fix tx/rx counterstimothee.cocault@gmail.com
The bytes and packets counter registers are cleared on read. Copying the "total counter" registers to the "good counter" registers has side effects. If the "total" register is never read by the OS, it only gets incremented. This leads to exponential growth of the "good" register. This commit increments the counters individually to avoid this. Signed-off-by: Timothée Cocault <timothee.cocault@gmail.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: respect VMVIR and VMOLR for VLANSriram Yagnaraman
Add support for stripping/inserting VLAN for VFs. Had to move CSUM calculation back into the for loop, since packet data is pulled inside the loop based on strip VLAN decision for every VF. net_rx_pkt_fix_l4_csum should be extended to accept a buffer instead for igb. Work for a future patch. Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: implement VF Tx and Rx statsSriram Yagnaraman
Please note that loopback counters for VM to VM traffic is not implemented yet: VFGOTLBC, VFGPTLBC, VFGORLBC and VFGPRLBC. Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: respect E1000_VMOLR_RSSESriram Yagnaraman
RSS for VFs is only enabled if VMOLR[n].RSSE is set. Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: check oversized packets for VMDqSriram Yagnaraman
Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: implement VFRE and VFTE registersSriram Yagnaraman
Also introduce: - Checks for RXDCTL/TXDCTL queue enable bits - IGB_NUM_VM_POOLS enum (Sec 1.5: Table 1-7) Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: add ICR_RXDWSriram Yagnaraman
IGB uses RXDW ICR bit to indicate that rx descriptor has been written back. This is the same as RXT0 bit in older HW. Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: handle PF/VF reset properlySriram Yagnaraman
Use PFRSTD to reset RSTI bit for VFs, and raise VFLRE interrupt when VF is reset. Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: Fix DMA requester specification for Tx packetAkihiko Odaki
igb used to specify the PF as DMA requester when reading Tx packets. This made Tx requests from VFs to be performed on the address space of the PF, defeating the purpose of SR-IOV. Add some logic to change the requester depending on the queue, which can be assigned to a VF. Fixes: 3a977deebe ("Intrdocue igb device emulation") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-28igb: Save more Tx statesAkihiko Odaki
The current implementation of igb uses only part of a advanced Tx context descriptor and first data descriptor because it misses some features and sniffs the trait of the packet instead of respecting the packet type specified in the descriptor. However, we will certainly need the entire Tx context descriptor when we update igb to respect these ignored fields. Save the entire context descriptor and first data descriptor except the buffer address to prepare for such a change. This also introduces the distinction of contexts with different indexes, which was not present in e1000e but in igb. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-03-10Intrdocue igb device emulationAkihiko Odaki
This change introduces emulation for the Intel 82576 adapter, AKA igb. The details of the device will be provided by the documentation that will follow this change. This initial implementation of igb does not cover the full feature set, but it selectively implements changes necessary to pass tests of Linut Test Project, and Windows HLK. The below is the list of the implemented changes; anything not listed here is not implemented: New features: - igb advanced descriptor handling - Support of 16 queues - SRRCTL.BSIZEPACKET register field - SRRCTL.RDMTS register field - Tx descriptor completion writeback - Extended RA registers - VMDq feature - MRQC "Multiple Receive Queues Enable" register field - DTXSWC.Loopback_en register field - VMOLR.ROMPE register field - VMOLR.AUPE register field - VLVF.VLAN_id register field - VLVF.VI_En register field - VF - Mailbox - Reset - Extended interrupt registers - Default values for IGP01E1000 PHY registers Removed features: - e1000e extended descriptor - e1000e packet split descriptor - Legacy descriptor - PHY register paging - MAC Registers - Legacy interrupt timer registers - Legacy EEPROM registers - PBA/POEM registers - RSRPD register - RFCTL.ACKDIS - RCTL.DTYPE - Copper PHY registers Misc: - VET register format - ICR register format Signed-off-by: Gal Hammer <gal.hammer@sap.com> Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> [Jason: don't abort on msi(x)_init()] Signed-off-by: Jason Wang <jasowang@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-15 14:33:54 +0000