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| author | Christoph Hellwig | 2015-11-26 10:07:41 +0100 |
|---|---|---|
| committer | Jens Axboe | 2015-12-01 18:59:39 +0100 |
| commit | 106198edb74cdf3fe1aefa6ad1e199b58ab7c4cb (patch) | |
| tree | 6eea24b2803eb583a2e2a8defc62e04ab29d763c /drivers/nvme/host/nvme.h | |
| parent | nvme: move block_device_operations and ns/ctrl freeing to common code (diff) | |
| download | kernel-qcow2-linux-106198edb74cdf3fe1aefa6ad1e199b58ab7c4cb.tar.gz kernel-qcow2-linux-106198edb74cdf3fe1aefa6ad1e199b58ab7c4cb.tar.xz kernel-qcow2-linux-106198edb74cdf3fe1aefa6ad1e199b58ab7c4cb.zip | |
nvme: add explicit quirk handling
Add an enum for all workarounds not in the spec and identify the affected
controllers at probe time.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 3b3f855580ee..f7f16e32104f 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -32,6 +32,18 @@ enum { NVME_NS_LIGHTNVM = 1, }; +/* + * List of workarounds for devices that required behavior not specified in + * the standard. + */ +enum nvme_quirks { + /* + * Prefers I/O aligned to a stripe size specified in a vendor + * specific Identify field. + */ + NVME_QUIRK_STRIPE_SIZE = (1 << 0), +}; + struct nvme_ctrl { const struct nvme_ctrl_ops *ops; struct request_queue *admin_q; @@ -47,6 +59,7 @@ struct nvme_ctrl { u16 abort_limit; u8 event_limit; u8 vwc; + unsigned long quirks; }; /* |