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nvme: Check for Security send/recv support before issuing commands.

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We need to verify that the controller supports the security
commands before actually trying to issue them.

Signed-off-by: Scott Bauer <scott.bauer@intel.com>
[hch: moved the check so that we don't call into the OPAL code if not
      supported]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Scott Bauer 2017-02-17 13:59:40 +01:00 committed by Jens Axboe
parent 4f1244c829
commit 8a9ae52328
4 changed files with 4 additions and 1 deletions
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1
drivers/nvme/host/core.c
View File

@ -1264,6 +1264,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
return -EIO;
}
ctrl->oacs = le16_to_cpu(id->oacs);
ctrl->vid = le16_to_cpu(id->vid);
ctrl->oncs = le16_to_cpup(&id->oncs);
atomic_set(&ctrl->abort_limit, id->acl + 1);

1
drivers/nvme/host/nvme.h
View File

@ -140,6 +140,7 @@ struct nvme_ctrl {
u32 max_hw_sectors;
u16 oncs;
u16 vid;
u16 oacs;
atomic_t abort_limit;
u8 event_limit;
u8 vwc;

2
drivers/nvme/host/pci.c
View File

@ -1792,7 +1792,7 @@ static void nvme_reset_work(struct work_struct *work)
if (result)
goto out;
if (!dev->ctrl.opal_dev) {
if ((dev->ctrl.oacs & NVME_CTRL_OACS_SEC_SUPP) && !dev->ctrl.opal_dev) {
dev->ctrl.opal_dev =
init_opal_dev(&dev->ctrl, &nvme_sec_submit);
}

1
include/linux/nvme.h
View File

@ -244,6 +244,7 @@ enum {
NVME_CTRL_ONCS_DSM = 1 << 2,
NVME_CTRL_ONCS_WRITE_ZEROES = 1 << 3,
NVME_CTRL_VWC_PRESENT = 1 << 0,
NVME_CTRL_OACS_SEC_SUPP = 1 << 0,
};
struct nvme_lbaf {