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2024-03-12igb: fix link state on resumeLaurent Vivier
On resume igb_vm_state_change() always calls igb_autoneg_resume() that sets link_down to false, and thus activates the link even if we have disabled it. The problem can be reproduced starting qemu in paused state (-S) and then set the link to down. When we resume the machine the link appears to be up. Reproducer: # qemu-system-x86_64 ... -device igb,netdev=netdev0,id=net0 -S {"execute": "qmp_capabilities" } {"execute": "set_link", "arguments": {"name": "net0", "up": false}} {"execute": "cont" } To fix the problem, merge the content of igb_vm_state_change() into igb_core_post_load() as e1000 does. Buglink: https://issues.redhat.com/browse/RHEL-21867 Fixes: 3a977deebe6b ("Intrdocue igb device emulation") Cc: akihiko.odaki@daynix.com Suggested-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
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>
2023-03-28igb: 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: 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>