Attention is currently required from: Angel Pons, Bill XIE.
Keith Hui has posted comments on this change by Keith Hui. ( https://review.coreboot.org/c/coreboot/+/85413?usp=email )
Change subject: mb/asus/p8z77-v: Attempt to correctly route PCIe lanes ......................................................................
Patch Set 3:
(2 comments)
File src/mainboard/asus/p8x7x-series/variants/p8z77-v/cmos.layout:
https://review.coreboot.org/c/coreboot/+/85413/comment/9a5588bf_e1bf604a?usp... : PS3, Line 30: always_use_sata6ge
Silly question: what does the trailing `e` mean?
It is how the ports are named on PCB. You can say they are the "extra" SATA 6Gbps ports provided by "external" chips. Some are even placed on the backpanel as eSATA port(s), as is the case of my P8Z77-V LE+.
File src/mainboard/asus/p8x7x-series/variants/p8z77-v/early_init.c:
https://review.coreboot.org/c/coreboot/+/85413/comment/7ef30ad2_e8bfc945?usp... : PS2, Line 77: {7, 34, 20, -1}
https://send.aslaets. […]
Read your second dump.
Another hail-mary moment here. PCI port coalescing is next suspect. Try turning that off. Vendor doesn't do it either, nor does it try to hide ports with nothing downstream.
register "pcie_port_coalesce" = "0"