tree c2d0acea0288350aca5c9fc074bc22afe31f5d4e
parent 010f5c0459aa4c9c205da3e5ba3b569d303eeb87
author Samuel Mendoza-Jonas <sam@mendozajonas.com> 1508372062 +1100
committer Samuel Mendoza-Jonas <sam@mendozajonas.com> 1508372542 +1100

configs/linux: Set CONFIG_BLK_DEV_INTEGRITY

P9 platforms support the use of the Samsung "Bolt" NVMe adapter. These
adapters include data integrity support. CONFIG_BLK_DEV_INTEGRITY
enables this but more importantly it avoids an issue when the adapter is
configured with T10 data integrity and accessed by a kernel without
CONFIG_BLK_DEV_INTEGRITY set.
This manifests as the adapter failing to init correctly and the system
hanging on any attempt to access the device, including failing to reboot
or kexec:

[   36.320430] nvme nvme0: I/O 498 QID 2 timeout, aborting
[   36.320443] nvme nvme0: I/O 499 QID 2 timeout, aborting
[   36.320452] nvme nvme0: I/O 500 QID 2 timeout, aborting
[   36.320470] nvme nvme0: controller is down; will reset: CSTS=0x3, PCI_STATUS=0x1010
[   36.482668] print_req_error: I/O error, dev nvme0n1, sector 0
[   36.482677] Buffer I/O error on dev nvme0n1, logical block 0, async page read
[   36.482683] print_req_error: I/O error, dev nvme0n1, sector 16
[   36.482687] Buffer I/O error on dev nvme0n1, logical block 1, async page read
[   36.482692] print_req_error: I/O error, dev nvme0n1, sector 32
[   36.482695] Buffer I/O error on dev nvme0n1, logical block 2, async page read
[   36.482700] print_req_error: I/O error, dev nvme0n1, sector 64
[   36.482703] Buffer I/O error on dev nvme0n1, logical block 4, async page read
[   36.482707] print_req_error: I/O error, dev nvme0n1, sector 80
[   36.482710] Buffer I/O error on dev nvme0n1, logical block 5, async page read
[   36.482715] print_req_error: I/O error, dev nvme0n1, sector 96
[   36.482718] Buffer I/O error on dev nvme0n1, logical block 6, async page read
[   36.482722] print_req_error: I/O error, dev nvme0n1, sector 112
[   36.482725] Buffer I/O error on dev nvme0n1, logical block 7, async page read
[   36.482753] nvme nvme0: Abort status: 0x7
[   36.482758] nvme nvme0: Abort status: 0x7
[   36.482763] nvme nvme0: Abort status: 0x7
[   36.482771] print_req_error: I/O error, dev nvme0n1, sector 48
[   36.482775] Buffer I/O error on dev nvme0n1, logical block 3, async page read
[   36.540460] nvme 0000:01:00.0: Using 64-bit DMA iommu bypass
[   99.040422] nvme nvme0: I/O 1 QID 0 timeout, disable controller
[   99.210493] nvme nvme0: Identify Controller failed (-4)
[   99.210498] nvme nvme0: Removing after probe failure status: -5

In the absence of a fix for this issue, set CONFIG_BLK_DEV_INTEGRITY as
a workaround, and for the sake of completeness add it to
skiroot_defconfig and pseries_skiroot_defconfig as well.

This also regenerates and simplifies the defconfigs.

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>