diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/ic/nvme.c | 50 | ||||
| -rw-r--r-- | sys/include/dev/ic/nvmevar.h | 83 |
2 files changed, 133 insertions, 0 deletions
diff --git a/sys/dev/ic/nvme.c b/sys/dev/ic/nvme.c index fe04caf..c65d7e0 100644 --- a/sys/dev/ic/nvme.c +++ b/sys/dev/ic/nvme.c @@ -309,6 +309,35 @@ nvme_poll_submit_cmd(struct nvme_queue *q, struct nvme_cmd cmd) return 0; } +/* + * Get NVMe log page + * + * @ctrl: NVMe controller to target + * @buf: Data buffer + * @lid: Log identifier + * @len: Length (in bytes) + */ +static int +nvme_get_logpage(struct nvme_ctrl *ctrl, void *buf, uint8_t lid, uint32_t len) +{ + struct nvme_cmd cmd = {0}; + struct nvme_get_logpage_cmd *cmdp; + + if (!is_4k_aligned(buf)) { + return -1; + } + + cmdp = &cmd.get_logpage; + cmdp->opcode = NVME_OP_GET_LOGPAGE; + cmdp->nsid = 0xFFFFFFFF; + cmdp->lid = lid; + cmdp->numdl = len / 4; + cmdp->numdu = 0; + cmdp->prp1 = VIRT_TO_PHYS(buf); + cmdp->prp2 = 0; + return nvme_poll_submit_cmd(&ctrl->adminq, cmd); +} + static int nvme_identify(struct nvme_ctrl *ctrl, void *buf, uint32_t nsid, uint8_t cns) { @@ -549,6 +578,7 @@ nvme_init_ctrl(struct nvme_bar *bar) uint16_t mqes; uint8_t *nsids; struct nvme_ctrl ctrl = { .bar = bar }; + struct nvme_smart_data *smart; struct nvme_queue *adminq; struct nvme_id *id; @@ -572,14 +602,21 @@ nvme_init_ctrl(struct nvme_bar *bar) return error; } + smart = dynalloc_memalign(sizeof(*smart), 0x1000); + if (smart == NULL) { + return -ENOMEM; + } + id = dynalloc_memalign(sizeof(*id), 0x1000); if (id == NULL) { + dynfree(smart); return -ENOMEM; } nsids = dynalloc_memalign(0x1000, 0x1000); if (nsids == NULL) { dynfree(id); + dynfree(smart); return -ENOMEM; } @@ -587,6 +624,18 @@ nvme_init_ctrl(struct nvme_bar *bar) nvme_log_ctrl_id(id); nvme_identify(&ctrl, nsids, 0, ID_CNS_NSID_LIST); + /* + * Attempt to read some SMART data but don't bother + * if it fails in any way. + */ + error = nvme_get_logpage(&ctrl, smart, NVME_LOGPAGE_SMART, sizeof(*smart)); + if (error == 0) { + if (smart->temp != 0 && smart->temp > 283) + pr_trace("temp: %d K\n", smart->temp); + + pr_trace("%d%% used\n", smart->percent_used); + } + ctrl.sqes = id->sqes >> 4; ctrl.cqes = id->cqes >> 4; @@ -613,6 +662,7 @@ nvme_init_ctrl(struct nvme_bar *bar) dynfree(id); dynfree(nsids); + dynfree(smart); return 0; } diff --git a/sys/include/dev/ic/nvmevar.h b/sys/include/dev/ic/nvmevar.h index eab8b52..3b06ad0 100644 --- a/sys/include/dev/ic/nvmevar.h +++ b/sys/include/dev/ic/nvmevar.h @@ -34,6 +34,7 @@ /* Admin commands */ #define NVME_OP_CREATE_IOSQ 0x01 +#define NVME_OP_GET_LOGPAGE 0x02 #define NVME_OP_CREATE_IOCQ 0x05 #define NVME_OP_IDENTIFY 0x06 @@ -45,6 +46,67 @@ #define NVME_OP_WRITE 0x01 #define NVME_OP_READ 0x02 +/* Log page identifiers */ +#define NVME_LOGPAGE_SMART 0x02 + +/* + * S.M.A.R.T health / information log + * + * See section 5.16.1.3, figure 207 of the + * NVMe base spec (rev 2.0a) + * + * @cwarn: Critical warning + * @temp: Composite tempature (kelvin) + * @avail_spare: Available spare (in percentage) + * @avail_spare_thr: Available spare threshold + * @percent_used: Estimate NVMe life used percentage + * @end_cwarn: Endurance group critical warning summary + * @data_units_read: Number of 512 byte data units read + * @data_units_written: Number of 512 byte data units written + * @host_reads: Number of host read commands completed + * @host_writes: Number of host write commands completed + * @ctrl_busy_time: Controller busy time + * @power_cycles: Number of power cycles + * @power_on_hours: Number of power on hours + * @unsafe_shutdowns: Number of unsafe shutdowns + * @media_errors: Media and data integrity errors + * @n_errlog_entries: Number of error log info entries + * @warning_temp_time: Warning composite tempature time + * @critical_comp_time: Critical composite tempature time + * @temp_sensor: Tempature sensor <n> data + * @temp1_trans_cnt: Tempature 1 transition count + * @temp2_trans_cnt: Tempature 2 transition count + * @temp1_total_time: Total time for tempature 1 + * @temp2_total_time: Total time for tempature 2 + */ +struct nvme_smart_data { + uint8_t cwarn; + uint16_t temp; + uint8_t avail_spare; + uint8_t avail_spare_thr; + uint8_t percent_used; + uint8_t end_cwarn; + uint8_t reserved[25]; + uint8_t data_units_read[16]; + uint8_t data_units_written[16]; + uint8_t host_reads[16]; + uint8_t host_writes[16]; + uint8_t ctrl_busy_time[16]; + uint8_t power_cycles[16]; + uint8_t power_on_hours[16]; + uint8_t unsafe_shutdowns[16]; + uint8_t media_errors[16]; + uint8_t n_errlog_entries[16]; + uint32_t warning_temp_time; + uint32_t critical_comp_time; + uint16_t temp_sensor[8]; + uint32_t temp1_trans_cnt; + uint32_t temp2_trans_cnt; + uint32_t temp1_total_time; + uint32_t temp2_total_time; + uint8_t reserved1[280]; +}; + struct nvme_identify_cmd { uint8_t opcode; uint8_t flags; @@ -98,6 +160,26 @@ struct nvme_create_iosq_cmd { uint64_t unused3[2]; }; +/* Get log page */ +struct nvme_get_logpage_cmd { + uint8_t opcode; + uint8_t flags; + uint16_t cid; + uint32_t nsid; + uint64_t unused[2]; + uint64_t prp1; + uint64_t prp2; + uint8_t lid; + uint8_t lsp; + uint16_t numdl; + uint16_t numdu; + uint16_t lsi; + uint64_t lpo; + uint8_t unused1[3]; + uint8_t csi; + uint32_t unused2; +}; + /* Read/write */ struct nvme_rw_cmd { uint8_t opcode; @@ -123,6 +205,7 @@ struct nvme_cmd { struct nvme_identify_cmd identify; struct nvme_create_iocq_cmd create_iocq; struct nvme_create_iosq_cmd create_iosq; + struct nvme_get_logpage_cmd get_logpage; struct nvme_rw_cmd rw; }; }; |