From: Keith Busch <kbusch@xxxxxxxxxx> commit 83bdfcbdbe5d901c5fa432decf12e1725a840a56 upstream. Another device has been reported to be unreliable if we have more than one outstanding command. In this new case, data corruption may occur. Since we have two devices now needing this quirky behavior, make a generic quirk flag. The same Apple quirk is clearly not "temporary", so update the comment while moving it. Link: https://lore.kernel.org/linux-nvme/191d810a4e3.fcc6066c765804.973611676137075390@xxxxxxxxxxxxx/ Reported-by: Robert Beckett <bob.beckett@xxxxxxxxxxxxx> Reviewed-by: Christoph Hellwig hch@xxxxxx> Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx> Cc: "Gagniuc, Alexandru" <alexandru.gagniuc@xxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/nvme/host/nvme.h | 5 +++++ drivers/nvme/host/pci.c | 18 +++++++++--------- 2 files changed, 14 insertions(+), 9 deletions(-) --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -89,6 +89,11 @@ enum nvme_quirks { NVME_QUIRK_NO_DEEPEST_PS = (1 << 5), /* + * Problems seen with concurrent commands + */ + NVME_QUIRK_QDEPTH_ONE = (1 << 6), + + /* * Set MEDIUM priority on SQ creation */ NVME_QUIRK_MEDIUM_PRIO_SQ = (1 << 7), --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2526,15 +2526,8 @@ static int nvme_pci_enable(struct nvme_d else dev->io_sqes = NVME_NVM_IOSQES; - /* - * Temporary fix for the Apple controller found in the MacBook8,1 and - * some MacBook7,1 to avoid controller resets and data loss. - */ - if (pdev->vendor == PCI_VENDOR_ID_APPLE && pdev->device == 0x2001) { + if (dev->ctrl.quirks & NVME_QUIRK_QDEPTH_ONE) { dev->q_depth = 2; - dev_warn(dev->ctrl.device, "detected Apple NVMe controller, " - "set queue depth=%u to work around controller resets\n", - dev->q_depth); } else if (pdev->vendor == PCI_VENDOR_ID_SAMSUNG && (pdev->device == 0xa821 || pdev->device == 0xa822) && NVME_CAP_MQES(dev->ctrl.cap) == 0) { @@ -3399,6 +3392,8 @@ static const struct pci_device_id nvme_i NVME_QUIRK_BOGUS_NID, }, { PCI_VDEVICE(REDHAT, 0x0010), /* Qemu emulated controller */ .driver_data = NVME_QUIRK_BOGUS_NID, }, + { PCI_DEVICE(0x1217, 0x8760), /* O2 Micro 64GB Steam Deck */ + .driver_data = NVME_QUIRK_QDEPTH_ONE }, { PCI_DEVICE(0x126f, 0x2262), /* Silicon Motion generic */ .driver_data = NVME_QUIRK_NO_DEEPEST_PS | NVME_QUIRK_BOGUS_NID, }, @@ -3531,7 +3526,12 @@ static const struct pci_device_id nvme_i { PCI_DEVICE(PCI_VENDOR_ID_AMAZON, 0xcd02), .driver_data = NVME_QUIRK_DMA_ADDRESS_BITS_48, }, { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001), - .driver_data = NVME_QUIRK_SINGLE_VECTOR }, + /* + * Fix for the Apple controller found in the MacBook8,1 and + * some MacBook7,1 to avoid controller resets and data loss. + */ + .driver_data = NVME_QUIRK_SINGLE_VECTOR | + NVME_QUIRK_QDEPTH_ONE }, { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2003) }, { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2005), .driver_data = NVME_QUIRK_SINGLE_VECTOR | Patches currently in stable-queue which might be from kbusch@xxxxxxxxxx are queue-6.6/nvme-pci-qdepth-1-quirk.patch
