diff options
Diffstat (limited to 'drivers/nvme/host')
-rw-r--r-- | drivers/nvme/host/nvme.h | 5 | ||||
-rw-r--r-- | drivers/nvme/host/pci.c | 12 |
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 044af553204c..7ef0a8e1c3e8 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -80,6 +80,11 @@ enum nvme_quirks { * Supports the LighNVM command set if indicated in vs[1]. */ NVME_QUIRK_LIGHTNVM = (1 << 6), + + /* + * Set MEDIUM priority on SQ creation + */ + NVME_QUIRK_MEDIUM_PRIO_SQ = (1 << 7), }; /* diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index cdd2fd509ddc..eab17405e815 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -947,10 +947,19 @@ static int adapter_alloc_cq(struct nvme_dev *dev, u16 qid, static int adapter_alloc_sq(struct nvme_dev *dev, u16 qid, struct nvme_queue *nvmeq) { + struct nvme_ctrl *ctrl = &dev->ctrl; struct nvme_command c; int flags = NVME_QUEUE_PHYS_CONTIG; /* + * Some drives have a bug that auto-enables WRRU if MEDIUM isn't + * set. Since URGENT priority is zeroes, it makes all queues + * URGENT. + */ + if (ctrl->quirks & NVME_QUIRK_MEDIUM_PRIO_SQ) + flags |= NVME_SQ_PRIO_MEDIUM; + + /* * Note: we (ab)use the fact the the prp fields survive if no data * is attached to the request. */ @@ -2523,7 +2532,8 @@ static const struct pci_device_id nvme_id_table[] = { .driver_data = NVME_QUIRK_STRIPE_SIZE | NVME_QUIRK_DEALLOCATE_ZEROES, }, { PCI_VDEVICE(INTEL, 0xf1a5), /* Intel 600P/P3100 */ - .driver_data = NVME_QUIRK_NO_DEEPEST_PS }, + .driver_data = NVME_QUIRK_NO_DEEPEST_PS | + NVME_QUIRK_MEDIUM_PRIO_SQ }, { PCI_VDEVICE(INTEL, 0x5845), /* Qemu emulated controller */ .driver_data = NVME_QUIRK_IDENTIFY_CNS, }, { PCI_DEVICE(0x1c58, 0x0003), /* HGST adapter */ |