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| author |   Christoph Hellwig <hch@lst.de> | 2018-05-30 15:04:47 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-06-01 14:37:35 +0200 |
| commit | c86b8f7b4144affc4daa8b4047cd4da936b087ef (patch) | |
| tree | e09b828f4fe9dd58f0ee142858144ca84c3899ed /drivers/nvme/target/admin-cmd.c | |
| parent | nvmet: implement the changed namespaces log (diff) | |
| download | linux-dev-c86b8f7b4144affc4daa8b4047cd4da936b087ef.tar.xz linux-dev-c86b8f7b4144affc4daa8b4047cd4da936b087ef.zip | |
nvmet: add AEN configuration support
AEN configuration via the 'Get Features' and 'Set Features' admin
command is mandatory, so we should be implemeting handling for it.
Signed-off-by: Hannes Reinecke <hare@suse.com>
[hch: use WRITE_ONCE, check for invalid values]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Diffstat (limited to 'drivers/nvme/target/admin-cmd.c')
| -rw-r--r-- | drivers/nvme/target/admin-cmd.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 52129d13770e..72ef17616682 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -189,7 +189,7 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) id->ver = cpu_to_le32(ctrl->subsys->ver); /* XXX: figure out what to do about RTD3R/RTD3 */ - id->oaes = cpu_to_le32(1 << 8); + id->oaes = cpu_to_le32(NVMET_AEN_CFG_OPTIONAL); id->ctratt = cpu_to_le32(1 << 0); id->oacs = 0; @@ -435,6 +435,16 @@ static void nvmet_execute_set_features(struct nvmet_req *req) req->sq->ctrl->kato = DIV_ROUND_UP(val32, 1000); nvmet_set_result(req, req->sq->ctrl->kato); break; + case NVME_FEAT_ASYNC_EVENT: + val32 = le32_to_cpu(req->cmd->common.cdw10[1]); + if (val32 & ~NVMET_AEN_CFG_ALL) { + status = NVME_SC_INVALID_FIELD | NVME_SC_DNR; + break; + } + + WRITE_ONCE(req->sq->ctrl->aen_enabled, val32); + nvmet_set_result(req, val32); + break; case NVME_FEAT_HOST_ID: status = NVME_SC_CMD_SEQ_ERROR | NVME_SC_DNR; break; @@ -473,9 +483,10 @@ static void nvmet_execute_get_features(struct nvmet_req *req) break; case NVME_FEAT_WRITE_ATOMIC: break; +#endif case NVME_FEAT_ASYNC_EVENT: + nvmet_set_result(req, READ_ONCE(req->sq->ctrl->aen_enabled)); break; -#endif case NVME_FEAT_VOLATILE_WC: nvmet_set_result(req, 1); break; |