diff options
| -rw-r--r-- | drivers/nvme/host/core.c | 4 | ||||
| -rw-r--r-- | drivers/nvme/host/nvme.h | 6 | ||||
| -rw-r--r-- | drivers/nvme/host/pci.c | 3 |
3 files changed, 11 insertions, 2 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index e486845d2c7e..7712a8f78337 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -978,6 +978,7 @@ EXPORT_SYMBOL_GPL(nvme_cleanup_cmd); blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req) { struct nvme_command *cmd = nvme_req(req)->cmd; + struct nvme_ctrl *ctrl = nvme_req(req)->ctrl; blk_status_t ret = BLK_STS_OK; if (!(req->rq_flags & RQF_DONTPREP)) { @@ -1026,7 +1027,8 @@ blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req) return BLK_STS_IOERR; } - nvme_req(req)->genctr++; + if (!(ctrl->quirks & NVME_QUIRK_SKIP_CID_GEN)) + nvme_req(req)->genctr++; cmd->common.command_id = nvme_cid(req); trace_nvme_setup_cmd(req, cmd); return ret; diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 9871c0c9374c..ed79a6c7e804 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -138,6 +138,12 @@ enum nvme_quirks { * 48 bits. */ NVME_QUIRK_DMA_ADDRESS_BITS_48 = (1 << 16), + + /* + * The controller requires the command_id value be be limited, so skip + * encoding the generation sequence number. + */ + NVME_QUIRK_SKIP_CID_GEN = (1 << 17), }; /* diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index b82492cd7503..456a0e8a5718 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -3369,7 +3369,8 @@ static const struct pci_device_id nvme_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2005), .driver_data = NVME_QUIRK_SINGLE_VECTOR | NVME_QUIRK_128_BYTES_SQES | - NVME_QUIRK_SHARED_TAGS }, + NVME_QUIRK_SHARED_TAGS | + NVME_QUIRK_SKIP_CID_GEN }, { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) }, { 0, } |