This is to add support for Device Self Test Command (DST) and
DST Log Page. Refer NVM Express specification 1.4b section 5.8
("Device Self-test command")
Signed-off-by: Gollu Appalanaidu
---
changes:
-v3: removed unwanted patch file added
-v2: addressed style fixes in hw/block/nvme.h
hw/block/nvme.c | 118 +-
hw/block/nvme.h | 13 +
hw/block/trace-events | 1 +
include/block/nvme.h | 49 ++
4 files changed, 180 insertions(+), 1 deletion(-)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 6842b01ab5..3c2186b170 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -214,6 +214,7 @@ static const uint32_t nvme_cse_acs[256] = {
[NVME_ADM_CMD_ASYNC_EV_REQ] = NVME_CMD_EFF_CSUPP,
[NVME_ADM_CMD_NS_ATTACHMENT]= NVME_CMD_EFF_CSUPP | NVME_CMD_EFF_NIC,
[NVME_ADM_CMD_FORMAT_NVM] = NVME_CMD_EFF_CSUPP | NVME_CMD_EFF_LBCC,
+[NVME_ADM_CMD_DST] = NVME_CMD_EFF_CSUPP,
};
static const uint32_t nvme_cse_iocs_none[256];
@@ -3980,6 +3981,34 @@ static uint16_t nvme_cmd_effects(NvmeCtrl *n, uint8_t
csi, uint32_t buf_len,
return nvme_c2h(n, ((uint8_t *)) + off, trans_len, req);
}
+static uint16_t nvme_dst_info(NvmeCtrl *n, uint32_t buf_len, uint64_t off,
+ NvmeRequest *req)
+{
+NvmeDstLogPage dst_log = {};
+NvmeDst *dst;
+NvmeDstEntry *traverser;
+uint32_t trans_len;
+uint8_t entry_index = 0;
+dst = >dst;
+
+if (off >= sizeof(dst_log)) {
+return NVME_INVALID_FIELD | NVME_DNR;
+}
+
+dst_log.current_dsto = dst->current_dsto;
+dst_log.current_dstc = dst->current_dstc;
+
+QTAILQ_FOREACH(traverser, >dst_list, entry) {
+memcpy(_log.dst_result[entry_index],
+>dst_entry, sizeof(NvmeSelfTestResult));
+entry_index++;
+}
+
+trans_len = MIN(sizeof(dst_log) - off, buf_len);
+
+return nvme_c2h(n, ((uint8_t *)_log) + off, trans_len, req);
+}
+
static uint16_t nvme_get_log(NvmeCtrl *n, NvmeRequest *req)
{
NvmeCmd *cmd = >cmd;
@@ -4027,6 +4056,8 @@ static uint16_t nvme_get_log(NvmeCtrl *n, NvmeRequest
*req)
return nvme_changed_nslist(n, rae, len, off, req);
case NVME_LOG_CMD_EFFECTS:
return nvme_cmd_effects(n, csi, len, off, req);
+case NVME_LOG_DEV_SELF_TEST:
+return nvme_dst_info(n, len, off, req);
default:
trace_pci_nvme_err_invalid_log_page(nvme_cid(req), lid);
return NVME_INVALID_FIELD | NVME_DNR;
@@ -5069,6 +5100,73 @@ static uint16_t nvme_format(NvmeCtrl *n, NvmeRequest
*req)
return req->status;
}
+static void nvme_dst_create_entry(NvmeCtrl *n, uint32_t nsid,
+uint8_t stc)
+{
+NvmeDstEntry *cur_entry;
+time_t current_ms;
+
+cur_entry = QTAILQ_LAST(>dst.dst_list);
+QTAILQ_REMOVE(>dst.dst_list, cur_entry, entry);
+memset(cur_entry, 0x0, sizeof(NvmeDstEntry));
+
+cur_entry->dst_entry.dst_status = stc << 4;
+
+if ((n->temperature >= n->features.temp_thresh_hi) ||
+(n->temperature <= n->features.temp_thresh_low)) {
+cur_entry->dst_entry.dst_status |= NVME_DST_WITH_FAILED_SEG;
+cur_entry->dst_entry.segment_number = NVME_SMART_CHECK;
+}
+
+current_ms = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL);
+cur_entry->dst_entry.poh = cpu_to_le64current_ms -
+n->starttime_ms) / 1000) / 60) / 60);
+cur_entry->dst_entry.nsid = nsid;
+
+QTAILQ_INSERT_HEAD(>dst.dst_list, cur_entry, entry);
+}
+
+static uint16_t nvme_dst_processing(NvmeCtrl *n, uint32_t nsid,
+uint8_t stc)
+{
+/*
+ * n->dst.current_dsto will be always 0x0 or NO DST OPERATION,
+ * since no background device self test operation takes place.
+ */
+assert(n->dst.current_dsto == NVME_DST_NO_OPERATION);
+
+if (stc == NVME_ABORT_DSTO) {
+goto out;
+}
+if (stc == NVME_SHORT_DSTO || stc == NVME_EXTENDED_DSTO) {
+nvme_dst_create_entry(n, nsid, stc);
+}
+
+out:
+n->dst.current_dstc = NVME_DST_OPERATION_COMPLETED;
+return NVME_SUCCESS;
+}
+
+static uint16_t nvme_dst(NvmeCtrl *n, NvmeRequest *req)
+{
+uint32_t dw10 = le32_to_cpu(req->cmd.cdw10);
+uint32_t nsid = le32_to_cpu(req->cmd.nsid);
+uint8_t stc = dw10 & 0xf;
+
+trace_pci_nvme_dst(nvme_cid(req), nsid, stc);
+
+if (!nvme_nsid_valid(n, nsid) && nsid != 0) {
+return NVME_INVALID_NSID | NVME_DNR;
+}
+
+if (nsid != NVME_NSID_BROADCAST && nsid != 0 &&
+!nvme_ns(n, nsid)) {
+return NVME_INVALID_FIELD | NVME_DNR;
+}
+
+return nvme_dst_processing(n, nsid, stc);
+}
+
static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequest *req)
{
trace_pci_nvme_admin_cmd(nvme_cid(req), nvme_sqid(req), req->cmd.opcode,
@@ -5109,6 +5207,8 @@ static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequest
*req)
return nvme_ns_attachment(n, req);
case
