diff options
Diffstat (limited to 'sys/dev/pci')
| -rw-r--r-- | sys/dev/pci/pci_pci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/dev/pci/pci_pci.c b/sys/dev/pci/pci_pci.c index 0945606bbc50..b735da657a6c 100644 --- a/sys/dev/pci/pci_pci.c +++ b/sys/dev/pci/pci_pci.c @@ -1096,6 +1096,11 @@ pcib_hotplug_present(struct pcib_softc *sc) return (-1); } +static int pci_enable_pcie_ei = 0; +SYSCTL_INT(_hw_pci, OID_AUTO, enable_pcie_ei, CTLFLAG_RWTUN, + &pci_enable_pcie_ei, 0, + "Enable support for PCI-express Electromechanical Interlock."); + static void pcib_pcie_hotplug_update(struct pcib_softc *sc, uint16_t val, uint16_t mask, bool schedule_task) @@ -1135,7 +1140,8 @@ pcib_pcie_hotplug_update(struct pcib_softc *sc, uint16_t val, uint16_t mask, * process of detaching), disable the Electromechanical * Interlock. */ - if (sc->pcie_slot_cap & PCIEM_SLOT_CAP_EIP) { + if ((sc->pcie_slot_cap & PCIEM_SLOT_CAP_EIP) && + pci_enable_pcie_ei) { mask |= PCIEM_SLOT_CTL_EIC; ei_engaged = (sc->pcie_slot_sta & PCIEM_SLOT_STA_EIS) != 0; if (card_inserted != ei_engaged) |