git: ahci: add workarounds for Samsung Apple PCIe SSD (0x144d:0x1600)

[Matthew Dillon]

commit 8eea3a9ce6ec1d87185ee57f41389c2697e9a4ae
Author: Abdelkader Boudih <dragonflybsd at seuros.com>
Date:   Mon May 4 17:57:23 2026 +0000

    ahci: add workarounds for Samsung Apple PCIe SSD (0x144d:0x1600)
    
    Add ahci_samsung_apple_attach() following the VIA/ATI/NVidia named-function
    pattern in ahci_devices[]. Sets AHCI_F_IGN_FR | AHCI_F_IGN_CR |
    AHCI_F_FAST_COMRESET to work around the drive's non-compliant AHCI reset
    behaviour on Apple PCIe.
    
    AHCI_F_FAST_COMRESET reduces the three comreset stall sleeps from 1000 ms
    each to 10 ms each, so the device comes up without hanging the AHCI init.

Summary of changes:
 sys/bus/pci/pcidevs             |  4 ++++
 sys/dev/disk/ahci/ahci.c        | 20 ++++++++++++--------
 sys/dev/disk/ahci/ahci.h        |  1 +
 sys/dev/disk/ahci/ahci_attach.c | 18 +++++++++++++++++-
 4 files changed, 34 insertions(+), 9 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/8eea3a9ce6ec1d87185ee57f41389c2697e9a4ae


-- 
DragonFly BSD source repository