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-rw-r--r--hw/block/nvme.c103
-rw-r--r--hw/block/trace-events4
-rw-r--r--include/block/nvme.h27
3 files changed, 119 insertions, 15 deletions
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 889a52ba11..bfc23037c3 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -99,6 +99,14 @@ static const bool nvme_feature_support[NVME_FID_MAX] = {
[NVME_TIMESTAMP] = true,
};
+static const uint32_t nvme_feature_cap[NVME_FID_MAX] = {
+ [NVME_TEMPERATURE_THRESHOLD] = NVME_FEAT_CAP_CHANGE,
+ [NVME_VOLATILE_WRITE_CACHE] = NVME_FEAT_CAP_CHANGE,
+ [NVME_NUMBER_OF_QUEUES] = NVME_FEAT_CAP_CHANGE,
+ [NVME_ASYNCHRONOUS_EVENT_CONF] = NVME_FEAT_CAP_CHANGE,
+ [NVME_TIMESTAMP] = NVME_FEAT_CAP_CHANGE,
+};
+
static void nvme_process_sq(void *opaque);
static uint16_t nvme_cid(NvmeRequest *req)
@@ -1098,20 +1106,47 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req)
{
uint32_t dw10 = le32_to_cpu(cmd->cdw10);
uint32_t dw11 = le32_to_cpu(cmd->cdw11);
+ uint32_t nsid = le32_to_cpu(cmd->nsid);
uint32_t result;
uint8_t fid = NVME_GETSETFEAT_FID(dw10);
+ NvmeGetFeatureSelect sel = NVME_GETFEAT_SELECT(dw10);
uint16_t iv;
static const uint32_t nvme_feature_default[NVME_FID_MAX] = {
[NVME_ARBITRATION] = NVME_ARB_AB_NOLIMIT,
};
- trace_pci_nvme_getfeat(nvme_cid(req), fid, dw11);
+ trace_pci_nvme_getfeat(nvme_cid(req), fid, sel, dw11);
if (!nvme_feature_support[fid]) {
return NVME_INVALID_FIELD | NVME_DNR;
}
+ if (nvme_feature_cap[fid] & NVME_FEAT_CAP_NS) {
+ if (!nsid || nsid > n->num_namespaces) {
+ /*
+ * The Reservation Notification Mask and Reservation Persistence
+ * features require a status code of Invalid Field in Command when
+ * NSID is 0xFFFFFFFF. Since the device does not support those
+ * features we can always return Invalid Namespace or Format as we
+ * should do for all other features.
+ */
+ return NVME_INVALID_NSID | NVME_DNR;
+ }
+ }
+
+ switch (sel) {
+ case NVME_GETFEAT_SELECT_CURRENT:
+ break;
+ case NVME_GETFEAT_SELECT_SAVED:
+ /* no features are saveable by the controller; fallthrough */
+ case NVME_GETFEAT_SELECT_DEFAULT:
+ goto defaults;
+ case NVME_GETFEAT_SELECT_CAP:
+ result = nvme_feature_cap[fid];
+ goto out;
+ }
+
switch (fid) {
case NVME_TEMPERATURE_THRESHOLD:
result = 0;
@@ -1121,22 +1156,45 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req)
* return 0 for all other sensors.
*/
if (NVME_TEMP_TMPSEL(dw11) != NVME_TEMP_TMPSEL_COMPOSITE) {
- break;
+ goto out;
}
switch (NVME_TEMP_THSEL(dw11)) {
case NVME_TEMP_THSEL_OVER:
result = n->features.temp_thresh_hi;
- break;
+ goto out;
case NVME_TEMP_THSEL_UNDER:
result = n->features.temp_thresh_low;
- break;
+ goto out;
}
- break;
+ return NVME_INVALID_FIELD | NVME_DNR;
case NVME_VOLATILE_WRITE_CACHE:
result = blk_enable_write_cache(n->conf.blk);
trace_pci_nvme_getfeat_vwcache(result ? "enabled" : "disabled");
+ goto out;
+ case NVME_ASYNCHRONOUS_EVENT_CONF:
+ result = n->features.async_config;
+ goto out;
+ case NVME_TIMESTAMP:
+ return nvme_get_feature_timestamp(n, cmd);
+ default:
+ break;
+ }
+
+defaults:
+ switch (fid) {
+ case NVME_TEMPERATURE_THRESHOLD:
+ result = 0;
+
+ if (NVME_TEMP_TMPSEL(dw11) != NVME_TEMP_TMPSEL_COMPOSITE) {
+ break;
+ }
+
+ if (NVME_TEMP_THSEL(dw11) == NVME_TEMP_THSEL_OVER) {
+ result = NVME_TEMPERATURE_WARNING;
+ }
+
break;
case NVME_NUMBER_OF_QUEUES:
result = (n->params.max_ioqpairs - 1) |
@@ -1155,16 +1213,12 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req)
}
break;
- case NVME_ASYNCHRONOUS_EVENT_CONF:
- result = n->features.async_config;
- break;
- case NVME_TIMESTAMP:
- return nvme_get_feature_timestamp(n, cmd);
default:
result = nvme_feature_default[fid];
break;
}
+out:
req->cqe.result = cpu_to_le32(result);
return NVME_SUCCESS;
}
@@ -1191,14 +1245,37 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeCmd *cmd, NvmeRequest *req)
{
uint32_t dw10 = le32_to_cpu(cmd->cdw10);
uint32_t dw11 = le32_to_cpu(cmd->cdw11);
+ uint32_t nsid = le32_to_cpu(cmd->nsid);
uint8_t fid = NVME_GETSETFEAT_FID(dw10);
+ uint8_t save = NVME_SETFEAT_SAVE(dw10);
+
+ trace_pci_nvme_setfeat(nvme_cid(req), fid, save, dw11);
- trace_pci_nvme_setfeat(nvme_cid(req), fid, dw11);
+ if (save) {
+ return NVME_FID_NOT_SAVEABLE | NVME_DNR;
+ }
if (!nvme_feature_support[fid]) {
return NVME_INVALID_FIELD | NVME_DNR;
}
+ if (nvme_feature_cap[fid] & NVME_FEAT_CAP_NS) {
+ if (!nsid || (nsid != NVME_NSID_BROADCAST &&
+ nsid > n->num_namespaces)) {
+ return NVME_INVALID_NSID | NVME_DNR;
+ }
+ } else if (nsid && nsid != NVME_NSID_BROADCAST) {
+ if (nsid > n->num_namespaces) {
+ return NVME_INVALID_NSID | NVME_DNR;
+ }
+
+ return NVME_FEAT_NOT_NS_SPEC | NVME_DNR;
+ }
+
+ if (!(nvme_feature_cap[fid] & NVME_FEAT_CAP_CHANGE)) {
+ return NVME_FEAT_NOT_CHANGEABLE | NVME_DNR;
+ }
+
switch (fid) {
case NVME_TEMPERATURE_THRESHOLD:
if (NVME_TEMP_TMPSEL(dw11) != NVME_TEMP_TMPSEL_COMPOSITE) {
@@ -2055,7 +2132,9 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev)
id->sqes = (0x6 << 4) | 0x6;
id->cqes = (0x4 << 4) | 0x4;
id->nn = cpu_to_le32(n->num_namespaces);
- id->oncs = cpu_to_le16(NVME_ONCS_WRITE_ZEROS | NVME_ONCS_TIMESTAMP);
+ id->oncs = cpu_to_le16(NVME_ONCS_WRITE_ZEROS | NVME_ONCS_TIMESTAMP |
+ NVME_ONCS_FEATURES);
+
id->psd[0].mp = cpu_to_le16(0x9c4);
id->psd[0].enlat = cpu_to_le32(0x10);
id->psd[0].exlat = cpu_to_le32(0x4);
diff --git a/hw/block/trace-events b/hw/block/trace-events
index 42e62f4649..4a4ef34071 100644
--- a/hw/block/trace-events
+++ b/hw/block/trace-events
@@ -46,8 +46,8 @@ pci_nvme_identify_ctrl(void) "identify controller"
pci_nvme_identify_ns(uint32_t ns) "nsid %"PRIu32""
pci_nvme_identify_nslist(uint32_t ns) "nsid %"PRIu32""
pci_nvme_get_log(uint16_t cid, uint8_t lid, uint8_t lsp, uint8_t rae, uint32_t len, uint64_t off) "cid %"PRIu16" lid 0x%"PRIx8" lsp 0x%"PRIx8" rae 0x%"PRIx8" len %"PRIu32" off %"PRIu64""
-pci_nvme_getfeat(uint16_t cid, uint8_t fid, uint32_t cdw11) "cid %"PRIu16" fid 0x%"PRIx8" cdw11 0x%"PRIx32""
-pci_nvme_setfeat(uint16_t cid, uint8_t fid, uint32_t cdw11) "cid %"PRIu16" fid 0x%"PRIx8" cdw11 0x%"PRIx32""
+pci_nvme_getfeat(uint16_t cid, uint8_t fid, uint8_t sel, uint32_t cdw11) "cid %"PRIu16" fid 0x%"PRIx8" sel 0x%"PRIx8" cdw11 0x%"PRIx32""
+pci_nvme_setfeat(uint16_t cid, uint8_t fid, uint8_t save, uint32_t cdw11) "cid %"PRIu16" fid 0x%"PRIx8" save 0x%"PRIx8" cdw11 0x%"PRIx32""
pci_nvme_getfeat_vwcache(const char* result) "get feature volatile write cache, result=%s"
pci_nvme_getfeat_numq(int result) "get feature number of queues, result=%d"
pci_nvme_setfeat_numq(int reqcq, int reqsq, int gotcq, int gotsq) "requested cq_count=%d sq_count=%d, responding with cq_count=%d sq_count=%d"
diff --git a/include/block/nvme.h b/include/block/nvme.h
index 64d2cab782..370df7fc05 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -664,7 +664,7 @@ enum NvmeStatusCodes {
NVME_INVALID_QUEUE_DEL = 0x010c,
NVME_FID_NOT_SAVEABLE = 0x010d,
NVME_FEAT_NOT_CHANGEABLE = 0x010e,
- NVME_FID_NOT_NSID_SPEC = 0x010f,
+ NVME_FEAT_NOT_NS_SPEC = 0x010f,
NVME_FW_REQ_SUSYSTEM_RESET = 0x0110,
NVME_CONFLICTING_ATTRS = 0x0180,
NVME_INVALID_PROT_INFO = 0x0181,
@@ -908,9 +908,32 @@ enum NvmeFeatureIds {
NVME_FID_MAX = 0x100,
};
+typedef enum NvmeFeatureCap {
+ NVME_FEAT_CAP_SAVE = 1 << 0,
+ NVME_FEAT_CAP_NS = 1 << 1,
+ NVME_FEAT_CAP_CHANGE = 1 << 2,
+} NvmeFeatureCap;
+
+typedef enum NvmeGetFeatureSelect {
+ NVME_GETFEAT_SELECT_CURRENT = 0x0,
+ NVME_GETFEAT_SELECT_DEFAULT = 0x1,
+ NVME_GETFEAT_SELECT_SAVED = 0x2,
+ NVME_GETFEAT_SELECT_CAP = 0x3,
+} NvmeGetFeatureSelect;
+
#define NVME_GETSETFEAT_FID_MASK 0xff
#define NVME_GETSETFEAT_FID(dw10) (dw10 & NVME_GETSETFEAT_FID_MASK)
+#define NVME_GETFEAT_SELECT_SHIFT 8
+#define NVME_GETFEAT_SELECT_MASK 0x7
+#define NVME_GETFEAT_SELECT(dw10) \
+ ((dw10 >> NVME_GETFEAT_SELECT_SHIFT) & NVME_GETFEAT_SELECT_MASK)
+
+#define NVME_SETFEAT_SAVE_SHIFT 31
+#define NVME_SETFEAT_SAVE_MASK 0x1
+#define NVME_SETFEAT_SAVE(dw10) \
+ ((dw10 >> NVME_SETFEAT_SAVE_SHIFT) & NVME_SETFEAT_SAVE_MASK)
+
typedef struct QEMU_PACKED NvmeRangeType {
uint8_t type;
uint8_t attributes;
@@ -927,6 +950,8 @@ typedef struct QEMU_PACKED NvmeLBAF {
uint8_t rp;
} NvmeLBAF;
+#define NVME_NSID_BROADCAST 0xffffffff
+
typedef struct QEMU_PACKED NvmeIdNs {
uint64_t nsze;
uint64_t ncap;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 02:10:12 +0000