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hw/nvme: flexible data placement emulation

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Add emulation of TP4146 ("Flexible Data Placement").

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jesper Devantier <j.devantier@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Jesper Devantier 2023-02-20 12:59:26 +01:00 committed by Klaus Jensen
parent e181d3da39
commit 73064edfb8
6 changed files with 1179 additions and 15 deletions
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698
hw/nvme/ctrl.c
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@ -238,6 +238,8 @@ static const bool nvme_feature_support[NVME_FID_MAX] = {
[NVME_TIMESTAMP] = true,
[NVME_HOST_BEHAVIOR_SUPPORT] = true,
[NVME_COMMAND_SET_PROFILE] = true,
[NVME_FDP_MODE] = true,
[NVME_FDP_EVENTS] = true,
};
static const uint32_t nvme_feature_cap[NVME_FID_MAX] = {
@ -249,6 +251,8 @@ static const uint32_t nvme_feature_cap[NVME_FID_MAX] = {
[NVME_TIMESTAMP] = NVME_FEAT_CAP_CHANGE,
[NVME_HOST_BEHAVIOR_SUPPORT] = NVME_FEAT_CAP_CHANGE,
[NVME_COMMAND_SET_PROFILE] = NVME_FEAT_CAP_CHANGE,
[NVME_FDP_MODE] = NVME_FEAT_CAP_CHANGE,
[NVME_FDP_EVENTS] = NVME_FEAT_CAP_CHANGE | NVME_FEAT_CAP_NS,
};
static const uint32_t nvme_cse_acs[256] = {
@ -281,6 +285,8 @@ static const uint32_t nvme_cse_iocs_nvm[256] = {
[NVME_CMD_VERIFY] = NVME_CMD_EFF_CSUPP,
[NVME_CMD_COPY] = NVME_CMD_EFF_CSUPP | NVME_CMD_EFF_LBCC,
[NVME_CMD_COMPARE] = NVME_CMD_EFF_CSUPP,
[NVME_CMD_IO_MGMT_RECV] = NVME_CMD_EFF_CSUPP,
[NVME_CMD_IO_MGMT_SEND] = NVME_CMD_EFF_CSUPP | NVME_CMD_EFF_LBCC,
};
static const uint32_t nvme_cse_iocs_zoned[256] = {
@ -299,12 +305,66 @@ static const uint32_t nvme_cse_iocs_zoned[256] = {
static void nvme_process_sq(void *opaque);
static void nvme_ctrl_reset(NvmeCtrl *n, NvmeResetType rst);
static inline uint64_t nvme_get_timestamp(const NvmeCtrl *n);
static uint16_t nvme_sqid(NvmeRequest *req)
{
return le16_to_cpu(req->sq->sqid);
}
static inline uint16_t nvme_make_pid(NvmeNamespace *ns, uint16_t rg,
uint16_t ph)
{
uint16_t rgif = ns->endgrp->fdp.rgif;
if (!rgif) {
return ph;
}
return (rg << (16 - rgif)) | ph;
}
static inline bool nvme_ph_valid(NvmeNamespace *ns, uint16_t ph)
{
return ph < ns->fdp.nphs;
}
static inline bool nvme_rg_valid(NvmeEnduranceGroup *endgrp, uint16_t rg)
{
return rg < endgrp->fdp.nrg;
}
static inline uint16_t nvme_pid2ph(NvmeNamespace *ns, uint16_t pid)
{
uint16_t rgif = ns->endgrp->fdp.rgif;
if (!rgif) {
return pid;
}
return pid & ((1 << (15 - rgif)) - 1);
}
static inline uint16_t nvme_pid2rg(NvmeNamespace *ns, uint16_t pid)
{
uint16_t rgif = ns->endgrp->fdp.rgif;
if (!rgif) {
return 0;
}
return pid >> (16 - rgif);
}
static inline bool nvme_parse_pid(NvmeNamespace *ns, uint16_t pid,
uint16_t *ph, uint16_t *rg)
{
*rg = nvme_pid2rg(ns, pid);
*ph = nvme_pid2ph(ns, pid);
return nvme_ph_valid(ns, *ph) && nvme_rg_valid(ns->endgrp, *rg);
}
static void nvme_assign_zone_state(NvmeNamespace *ns, NvmeZone *zone,
NvmeZoneState state)
{
@ -378,6 +438,69 @@ static uint16_t nvme_aor_check(NvmeNamespace *ns, uint32_t act, uint32_t opn)
return nvme_zns_check_resources(ns, act, opn, 0);
}
static NvmeFdpEvent *nvme_fdp_alloc_event(NvmeCtrl *n, NvmeFdpEventBuffer *ebuf)
{
NvmeFdpEvent *ret = NULL;
bool is_full = ebuf->next == ebuf->start && ebuf->nelems;
ret = &ebuf->events[ebuf->next++];
if (unlikely(ebuf->next == NVME_FDP_MAX_EVENTS)) {
ebuf->next = 0;
}
if (is_full) {
ebuf->start = ebuf->next;
} else {
ebuf->nelems++;
}
memset(ret, 0, sizeof(NvmeFdpEvent));
ret->timestamp = nvme_get_timestamp(n);
return ret;
}
static inline int log_event(NvmeRuHandle *ruh, uint8_t event_type)
{
return (ruh->event_filter >> nvme_fdp_evf_shifts[event_type]) & 0x1;
}
static bool nvme_update_ruh(NvmeCtrl *n, NvmeNamespace *ns, uint16_t pid)
{
NvmeEnduranceGroup *endgrp = ns->endgrp;
NvmeRuHandle *ruh;
NvmeReclaimUnit *ru;
NvmeFdpEvent *e = NULL;
uint16_t ph, rg, ruhid;
if (!nvme_parse_pid(ns, pid, &ph, &rg)) {
return false;
}
ruhid = ns->fdp.phs[ph];
ruh = &endgrp->fdp.ruhs[ruhid];
ru = &ruh->rus[rg];
if (ru->ruamw) {
if (log_event(ruh, FDP_EVT_RU_NOT_FULLY_WRITTEN)) {
e = nvme_fdp_alloc_event(n, &endgrp->fdp.host_events);
e->type = FDP_EVT_RU_NOT_FULLY_WRITTEN;
e->flags = FDPEF_PIV | FDPEF_NSIDV | FDPEF_LV;
e->pid = cpu_to_le16(pid);
e->nsid = cpu_to_le32(ns->params.nsid);
e->rgid = cpu_to_le16(rg);
e->ruhid = cpu_to_le16(ruhid);
}
/* log (eventual) GC overhead of prematurely swapping the RU */
nvme_fdp_stat_inc(&endgrp->fdp.mbmw, nvme_l2b(ns, ru->ruamw));
}
ru->ruamw = ruh->ruamw;
return true;
}
static bool nvme_addr_is_cmb(NvmeCtrl *n, hwaddr addr)
{
hwaddr hi, lo;
@ -3322,6 +3445,41 @@ invalid:
return status | NVME_DNR;
}
static void nvme_do_write_fdp(NvmeCtrl *n, NvmeRequest *req, uint64_t slba,
uint32_t nlb)
{
NvmeNamespace *ns = req->ns;
NvmeRwCmd *rw = (NvmeRwCmd *)&req->cmd;
uint64_t data_size = nvme_l2b(ns, nlb);
uint32_t dw12 = le32_to_cpu(req->cmd.cdw12);
uint8_t dtype = (dw12 >> 20) & 0xf;
uint16_t pid = le16_to_cpu(rw->dspec);
uint16_t ph, rg, ruhid;
NvmeReclaimUnit *ru;
if (dtype != NVME_DIRECTIVE_DATA_PLACEMENT ||
!nvme_parse_pid(ns, pid, &ph, &rg)) {
ph = 0;
rg = 0;
}
ruhid = ns->fdp.phs[ph];
ru = &ns->endgrp->fdp.ruhs[ruhid].rus[rg];
nvme_fdp_stat_inc(&ns->endgrp->fdp.hbmw, data_size);
nvme_fdp_stat_inc(&ns->endgrp->fdp.mbmw, data_size);
while (nlb) {
if (nlb < ru->ruamw) {
ru->ruamw -= nlb;
break;
}
nlb -= ru->ruamw;
nvme_update_ruh(n, ns, pid);
}
}
static uint16_t nvme_do_write(NvmeCtrl *n, NvmeRequest *req, bool append,
bool wrz)
{
@ -3431,6 +3589,8 @@ static uint16_t nvme_do_write(NvmeCtrl *n, NvmeRequest *req, bool append,
if (!(zone->d.za & NVME_ZA_ZRWA_VALID)) {
zone->w_ptr += nlb;
}
} else if (ns->endgrp && ns->endgrp->fdp.enabled) {
nvme_do_write_fdp(n, req, slba, nlb);
}
data_offset = nvme_l2b(ns, slba);
@ -4088,6 +4248,126 @@ static uint16_t nvme_zone_mgmt_recv(NvmeCtrl *n, NvmeRequest *req)
return status;
}
static uint16_t nvme_io_mgmt_recv_ruhs(NvmeCtrl *n, NvmeRequest *req,
size_t len)
{
NvmeNamespace *ns = req->ns;
NvmeEnduranceGroup *endgrp;
NvmeRuhStatus *hdr;
NvmeRuhStatusDescr *ruhsd;
unsigned int nruhsd;
uint16_t rg, ph, *ruhid;
size_t trans_len;
g_autofree uint8_t *buf = NULL;
if (!n->subsys) {
return NVME_INVALID_FIELD | NVME_DNR;
}
if (ns->params.nsid == 0 || ns->params.nsid == 0xffffffff) {
return NVME_INVALID_NSID | NVME_DNR;
}
if (!n->subsys->endgrp.fdp.enabled) {
return NVME_FDP_DISABLED | NVME_DNR;
}
endgrp = ns->endgrp;
nruhsd = ns->fdp.nphs * endgrp->fdp.nrg;
trans_len = sizeof(NvmeRuhStatus) + nruhsd * sizeof(NvmeRuhStatusDescr);
buf = g_malloc(trans_len);
trans_len = MIN(trans_len, len);
hdr = (NvmeRuhStatus *)buf;
ruhsd = (NvmeRuhStatusDescr *)(buf + sizeof(NvmeRuhStatus));
hdr->nruhsd = cpu_to_le16(nruhsd);
ruhid = ns->fdp.phs;
for (ph = 0; ph < ns->fdp.nphs; ph++, ruhid++) {
NvmeRuHandle *ruh = &endgrp->fdp.ruhs[*ruhid];
for (rg = 0; rg < endgrp->fdp.nrg; rg++, ruhsd++) {
uint16_t pid = nvme_make_pid(ns, rg, ph);
ruhsd->pid = cpu_to_le16(pid);
ruhsd->ruhid = *ruhid;
ruhsd->earutr = 0;
ruhsd->ruamw = cpu_to_le64(ruh->rus[rg].ruamw);
}
}
return nvme_c2h(n, buf, trans_len, req);
}
static uint16_t nvme_io_mgmt_recv(NvmeCtrl *n, NvmeRequest *req)
{
NvmeCmd *cmd = &req->cmd;
uint32_t cdw10 = le32_to_cpu(cmd->cdw10);
uint32_t numd = le32_to_cpu(cmd->cdw11);
uint8_t mo = (cdw10 & 0xff);
size_t len = (numd + 1) << 2;
switch (mo) {
case NVME_IOMR_MO_NOP:
return 0;
case NVME_IOMR_MO_RUH_STATUS:
return nvme_io_mgmt_recv_ruhs(n, req, len);
default:
return NVME_INVALID_FIELD | NVME_DNR;
};
}
static uint16_t nvme_io_mgmt_send_ruh_update(NvmeCtrl *n, NvmeRequest *req)
{
NvmeCmd *cmd = &req->cmd;
NvmeNamespace *ns = req->ns;
uint32_t cdw10 = le32_to_cpu(cmd->cdw10);
uint16_t ret = NVME_SUCCESS;
uint32_t npid = (cdw10 >> 1) + 1;
unsigned int i = 0;
g_autofree uint16_t *pids = NULL;
uint32_t maxnpid = n->subsys->endgrp.fdp.nrg * n->subsys->endgrp.fdp.nruh;
if (unlikely(npid >= MIN(NVME_FDP_MAXPIDS, maxnpid))) {
return NVME_INVALID_FIELD | NVME_DNR;
}
pids = g_new(uint16_t, npid);
ret = nvme_h2c(n, pids, npid * sizeof(uint16_t), req);
if (ret) {
return ret;
}
for (; i < npid; i++) {
if (!nvme_update_ruh(n, ns, pids[i])) {
return NVME_INVALID_FIELD | NVME_DNR;
}
}
return ret;
}
static uint16_t nvme_io_mgmt_send(NvmeCtrl *n, NvmeRequest *req)
{
NvmeCmd *cmd = &req->cmd;
uint32_t cdw10 = le32_to_cpu(cmd->cdw10);
uint8_t mo = (cdw10 & 0xff);
switch (mo) {
case NVME_IOMS_MO_NOP:
return 0;
case NVME_IOMS_MO_RUH_UPDATE:
return nvme_io_mgmt_send_ruh_update(n, req);
default:
return NVME_INVALID_FIELD | NVME_DNR;
};
}
static uint16_t nvme_io_cmd(NvmeCtrl *n, NvmeRequest *req)
{
NvmeNamespace *ns;
@ -4164,6 +4444,10 @@ static uint16_t nvme_io_cmd(NvmeCtrl *n, NvmeRequest *req)
return nvme_zone_mgmt_send(n, req);
case NVME_CMD_ZONE_MGMT_RECV:
return nvme_zone_mgmt_recv(n, req);
case NVME_CMD_IO_MGMT_RECV:
return nvme_io_mgmt_recv(n, req);
case NVME_CMD_IO_MGMT_SEND:
return nvme_io_mgmt_send(n, req);
default:
assert(false);
}
@ -4623,6 +4907,207 @@ static uint16_t nvme_cmd_effects(NvmeCtrl *n, uint8_t csi, uint32_t buf_len,
return nvme_c2h(n, ((uint8_t *)&log) + off, trans_len, req);
}
static size_t sizeof_fdp_conf_descr(size_t nruh, size_t vss)
{
size_t entry_siz = sizeof(NvmeFdpDescrHdr) + nruh * sizeof(NvmeRuhDescr)
+ vss;
return ROUND_UP(entry_siz, 8);
}
static uint16_t nvme_fdp_confs(NvmeCtrl *n, uint32_t endgrpid, uint32_t buf_len,
uint64_t off, NvmeRequest *req)
{
uint32_t log_size, trans_len;
g_autofree uint8_t *buf = NULL;
NvmeFdpDescrHdr *hdr;
NvmeRuhDescr *ruhd;
NvmeEnduranceGroup *endgrp;
NvmeFdpConfsHdr *log;
size_t nruh, fdp_descr_size;
int i;
if (endgrpid != 1 || !n->subsys) {
return NVME_INVALID_FIELD | NVME_DNR;
}
endgrp = &n->subsys->endgrp;
if (endgrp->fdp.enabled) {
nruh = endgrp->fdp.nruh;
} else {
nruh = 1;
}
fdp_descr_size = sizeof_fdp_conf_descr(nruh, FDPVSS);
log_size = sizeof(NvmeFdpConfsHdr) + fdp_descr_size;
if (off >= log_size) {
return NVME_INVALID_FIELD | NVME_DNR;
}
trans_len = MIN(log_size - off, buf_len);
buf = g_malloc0(log_size);
log = (NvmeFdpConfsHdr *)buf;
hdr = (NvmeFdpDescrHdr *)(log + 1);
ruhd = (NvmeRuhDescr *)(buf + sizeof(*log) + sizeof(*hdr));
log->num_confs = cpu_to_le16(0);
log->size = cpu_to_le32(log_size);
hdr->descr_size = cpu_to_le16(fdp_descr_size);
if (endgrp->fdp.enabled) {
hdr->fdpa = FIELD_DP8(hdr->fdpa, FDPA, VALID, 1);
hdr->fdpa = FIELD_DP8(hdr->fdpa, FDPA, RGIF, endgrp->fdp.rgif);
hdr->nrg = cpu_to_le16(endgrp->fdp.nrg);
hdr->nruh = cpu_to_le16(endgrp->fdp.nruh);
hdr->maxpids = cpu_to_le16(NVME_FDP_MAXPIDS - 1);
hdr->nnss = cpu_to_le32(NVME_MAX_NAMESPACES);
hdr->runs = cpu_to_le64(endgrp->fdp.runs);
for (i = 0; i < nruh; i++) {
ruhd->ruht = NVME_RUHT_INITIALLY_ISOLATED;
ruhd++;
}
} else {
/* 1 bit for RUH in PIF -> 2 RUHs max. */
hdr->nrg = cpu_to_le16(1);
hdr->nruh = cpu_to_le16(1);
hdr->maxpids = cpu_to_le16(NVME_FDP_MAXPIDS - 1);
hdr->nnss = cpu_to_le32(1);
hdr->runs = cpu_to_le64(96 * MiB);
ruhd->ruht = NVME_RUHT_INITIALLY_ISOLATED;
}
return nvme_c2h(n, (uint8_t *)buf + off, trans_len, req);
}
static uint16_t nvme_fdp_ruh_usage(NvmeCtrl *n, uint32_t endgrpid,
uint32_t dw10, uint32_t dw12,
uint32_t buf_len, uint64_t off,
NvmeRequest *req)
{
NvmeRuHandle *ruh;
NvmeRuhuLog *hdr;
NvmeRuhuDescr *ruhud;
NvmeEnduranceGroup *endgrp;
g_autofree uint8_t *buf = NULL;
uint32_t log_size, trans_len;
uint16_t i;
if (endgrpid != 1 || !n->subsys) {
return NVME_INVALID_FIELD | NVME_DNR;
}
endgrp = &n->subsys->endgrp;
if (!endgrp->fdp.enabled) {
return NVME_FDP_DISABLED | NVME_DNR;
}
log_size = sizeof(NvmeRuhuLog) + endgrp->fdp.nruh * sizeof(NvmeRuhuDescr);
if (off >= log_size) {
return NVME_INVALID_FIELD | NVME_DNR;
}
trans_len = MIN(log_size - off, buf_len);
buf = g_malloc0(log_size);
hdr = (NvmeRuhuLog *)buf;
ruhud = (NvmeRuhuDescr *)(hdr + 1);
ruh = endgrp->fdp.ruhs;
hdr->nruh = cpu_to_le16(endgrp->fdp.nruh);
for (i = 0; i < endgrp->fdp.nruh; i++, ruhud++, ruh++) {
ruhud->ruha = ruh->ruha;
}
return nvme_c2h(n, (uint8_t *)buf + off, trans_len, req);
}
static uint16_t nvme_fdp_stats(NvmeCtrl *n, uint32_t endgrpid, uint32_t buf_len,
uint64_t off, NvmeRequest *req)
{
NvmeEnduranceGroup *endgrp;
NvmeFdpStatsLog log = {};
uint32_t trans_len;
if (off >= sizeof(NvmeFdpStatsLog)) {
return NVME_INVALID_FIELD | NVME_DNR;
}
if (endgrpid != 1 || !n->subsys) {
return NVME_INVALID_FIELD | NVME_DNR;
}
if (!n->subsys->endgrp.fdp.enabled) {
return NVME_FDP_DISABLED | NVME_DNR;
}
endgrp = &n->subsys->endgrp;
trans_len = MIN(sizeof(log) - off, buf_len);
/* spec value is 128 bit, we only use 64 bit */
log.hbmw[0] = cpu_to_le64(endgrp->fdp.hbmw);
log.mbmw[0] = cpu_to_le64(endgrp->fdp.mbmw);
log.mbe[0] = cpu_to_le64(endgrp->fdp.mbe);
return nvme_c2h(n, (uint8_t *)&log + off, trans_len, req);
}
static uint16_t nvme_fdp_events(NvmeCtrl *n, uint32_t endgrpid,
uint32_t buf_len, uint64_t off,
NvmeRequest *req)
{
NvmeEnduranceGroup *endgrp;
NvmeCmd *cmd = &req->cmd;
bool host_events = (cmd->cdw10 >> 8) & 0x1;
uint32_t log_size, trans_len;
NvmeFdpEventBuffer *ebuf;
g_autofree NvmeFdpEventsLog *elog = NULL;
NvmeFdpEvent *event;
if (endgrpid != 1 || !n->subsys) {
return NVME_INVALID_FIELD | NVME_DNR;
}
endgrp = &n->subsys->endgrp;
if (!endgrp->fdp.enabled) {
return NVME_FDP_DISABLED | NVME_DNR;
}
if (host_events) {
ebuf = &endgrp->fdp.host_events;
} else {
ebuf = &endgrp->fdp.ctrl_events;
}
log_size = sizeof(NvmeFdpEventsLog) + ebuf->nelems * sizeof(NvmeFdpEvent);
trans_len = MIN(log_size - off, buf_len);
elog = g_malloc0(log_size);
elog->num_events = cpu_to_le32(ebuf->nelems);
event = (NvmeFdpEvent *)(elog + 1);
if (ebuf->nelems && ebuf->start == ebuf->next) {
unsigned int nelems = (NVME_FDP_MAX_EVENTS - ebuf->start);
/* wrap over, copy [start;NVME_FDP_MAX_EVENTS[ and [0; next[ */
memcpy(event, &ebuf->events[ebuf->start],
sizeof(NvmeFdpEvent) * nelems);
memcpy(event + nelems, ebuf->events,
sizeof(NvmeFdpEvent) * ebuf->next);
} else if (ebuf->start < ebuf->next) {
memcpy(event, &ebuf->events[ebuf->start],
sizeof(NvmeFdpEvent) * (ebuf->next - ebuf->start));
}
return nvme_c2h(n, (uint8_t *)elog + off, trans_len, req);
}
static uint16_t nvme_get_log(NvmeCtrl *n, NvmeRequest *req)
{
NvmeCmd *cmd = &req->cmd;
@ -4635,13 +5120,14 @@ static uint16_t nvme_get_log(NvmeCtrl *n, NvmeRequest *req)
uint8_t lsp = (dw10 >> 8) & 0xf;
uint8_t rae = (dw10 >> 15) & 0x1;
uint8_t csi = le32_to_cpu(cmd->cdw14) >> 24;
uint32_t numdl, numdu;
uint32_t numdl, numdu, lspi;
uint64_t off, lpol, lpou;
size_t len;
uint16_t status;
numdl = (dw10 >> 16);
numdu = (dw11 & 0xffff);
lspi = (dw11 >> 16);
lpol = dw12;
lpou = dw13;
@ -4672,6 +5158,14 @@ static uint16_t nvme_get_log(NvmeCtrl *n, NvmeRequest *req)
return nvme_cmd_effects(n, csi, len, off, req);
case NVME_LOG_ENDGRP:
return nvme_endgrp_info(n, rae, len, off, req);
case NVME_LOG_FDP_CONFS:
return nvme_fdp_confs(n, lspi, len, off, req);
case NVME_LOG_FDP_RUH_USAGE:
return nvme_fdp_ruh_usage(n, lspi, dw10, dw12, len, off, req);
case NVME_LOG_FDP_STATS:
return nvme_fdp_stats(n, lspi, len, off, req);
case NVME_LOG_FDP_EVENTS:
return nvme_fdp_events(n, lspi, len, off, req);
default:
trace_pci_nvme_err_invalid_log_page(nvme_cid(req), lid);
return NVME_INVALID_FIELD | NVME_DNR;
@ -5258,6 +5752,84 @@ static uint16_t nvme_get_feature_timestamp(NvmeCtrl *n, NvmeRequest *req)
return nvme_c2h(n, (uint8_t *)&timestamp, sizeof(timestamp), req);
}
static int nvme_get_feature_fdp(NvmeCtrl *n, uint32_t endgrpid,
uint32_t *result)
{
*result = 0;
if (!n->subsys || !n->subsys->endgrp.fdp.enabled) {
return NVME_INVALID_FIELD | NVME_DNR;
}
*result = FIELD_DP16(0, FEAT_FDP, FDPE, 1);
*result = FIELD_DP16(*result, FEAT_FDP, CONF_NDX, 0);
return NVME_SUCCESS;
}
static uint16_t nvme_get_feature_fdp_events(NvmeCtrl *n, NvmeNamespace *ns,
NvmeRequest *req, uint32_t *result)
{
NvmeCmd *cmd = &req->cmd;
uint32_t cdw11 = le32_to_cpu(cmd->cdw11);
uint16_t ph = cdw11 & 0xffff;
uint8_t noet = (cdw11 >> 16) & 0xff;
uint16_t ruhid, ret;
uint32_t nentries = 0;
uint8_t s_events_ndx = 0;
size_t s_events_siz = sizeof(NvmeFdpEventDescr) * noet;
g_autofree NvmeFdpEventDescr *s_events = g_malloc0(s_events_siz);
NvmeRuHandle *ruh;
NvmeFdpEventDescr *s_event;
if (!n->subsys || !n->subsys->endgrp.fdp.enabled) {
return NVME_FDP_DISABLED | NVME_DNR;
}
if (!nvme_ph_valid(ns, ph)) {
return NVME_INVALID_FIELD | NVME_DNR;
}
ruhid = ns->fdp.phs[ph];
ruh = &n->subsys->endgrp.fdp.ruhs[ruhid];
assert(ruh);
if (unlikely(noet == 0)) {
return NVME_INVALID_FIELD | NVME_DNR;
}
for (uint8_t event_type = 0; event_type < FDP_EVT_MAX; event_type++) {
uint8_t shift = nvme_fdp_evf_shifts[event_type];
if (!shift && event_type) {
/*
* only first entry (event_type == 0) has a shift value of 0
* other entries are simply unpopulated.
*/
continue;
}
nentries++;
s_event = &s_events[s_events_ndx];
s_event->evt = event_type;
s_event->evta = (ruh->event_filter >> shift) & 0x1;
/* break if all `noet` entries are filled */
if ((++s_events_ndx) == noet) {
break;
}
}
ret = nvme_c2h(n, s_events, s_events_siz, req);
if (ret) {
return ret;
}
*result = nentries;
return NVME_SUCCESS;
}
static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeRequest *req)
{
NvmeCmd *cmd = &req->cmd;
@ -5270,6 +5842,7 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeRequest *req)
uint16_t iv;
NvmeNamespace *ns;
int i;
uint16_t endgrpid = 0, ret = NVME_SUCCESS;
static const uint32_t nvme_feature_default[NVME_FID_MAX] = {
[NVME_ARBITRATION] = NVME_ARB_AB_NOLIMIT,
@ -5367,6 +5940,33 @@ static uint16_t nvme_get_feature(NvmeCtrl *n, NvmeRequest *req)
case NVME_HOST_BEHAVIOR_SUPPORT:
return nvme_c2h(n, (uint8_t *)&n->features.hbs,
sizeof(n->features.hbs), req);
case NVME_FDP_MODE:
endgrpid = dw11 & 0xff;
if (endgrpid != 0x1) {
return NVME_INVALID_FIELD | NVME_DNR;
}
ret = nvme_get_feature_fdp(n, endgrpid, &result);
if (ret) {
return ret;
}
goto out;
case NVME_FDP_EVENTS:
if (!nvme_nsid_valid(n, nsid)) {
return NVME_INVALID_NSID | NVME_DNR;
}
ns = nvme_ns(n, nsid);
if (unlikely(!ns)) {
return NVME_INVALID_FIELD | NVME_DNR;
}
ret = nvme_get_feature_fdp_events(n, ns, req, &result);
if (ret) {
return ret;
}
goto out;
default:
break;
}
@ -5399,6 +5999,20 @@ defaults:
if (iv == n->admin_cq.vector) {
result |= NVME_INTVC_NOCOALESCING;
}
break;
case NVME_FDP_MODE:
endgrpid = dw11 & 0xff;
if (endgrpid != 0x1) {
return NVME_INVALID_FIELD | NVME_DNR;
}
ret = nvme_get_feature_fdp(n, endgrpid, &result);
if (ret) {
return ret;
}
goto out;
break;
default:
result = nvme_feature_default[fid];
@ -5407,7 +6021,7 @@ defaults:
out:
req->cqe.result = cpu_to_le32(result);
return NVME_SUCCESS;
return ret;
}
static uint16_t nvme_set_feature_timestamp(NvmeCtrl *n, NvmeRequest *req)
@ -5425,6 +6039,51 @@ static uint16_t nvme_set_feature_timestamp(NvmeCtrl *n, NvmeRequest *req)
return NVME_SUCCESS;
}
static uint16_t nvme_set_feature_fdp_events(NvmeCtrl *n, NvmeNamespace *ns,
NvmeRequest *req)
{
NvmeCmd *cmd = &req->cmd;
uint32_t cdw11 = le32_to_cpu(cmd->cdw11);
uint16_t ph = cdw11 & 0xffff;
uint8_t noet = (cdw11 >> 16) & 0xff;
uint16_t ret, ruhid;
uint8_t enable = le32_to_cpu(cmd->cdw12) & 0x1;
uint8_t event_mask = 0;
unsigned int i;
g_autofree uint8_t *events = g_malloc0(noet);
NvmeRuHandle *ruh = NULL;
assert(ns);
if (!n->subsys || !n->subsys->endgrp.fdp.enabled) {
return NVME_FDP_DISABLED | NVME_DNR;
}
if (!nvme_ph_valid(ns, ph)) {
return NVME_INVALID_FIELD | NVME_DNR;
}
ruhid = ns->fdp.phs[ph];
ruh = &n->subsys->endgrp.fdp.ruhs[ruhid];
ret = nvme_h2c(n, events, noet, req);
if (ret) {
return ret;
}
for (i = 0; i < noet; i++) {
event_mask |= (1 << nvme_fdp_evf_shifts[events[i]]);
}
if (enable) {
ruh->event_filter |= event_mask;
} else {
ruh->event_filter = ruh->event_filter & ~event_mask;
}
return NVME_SUCCESS;
}
static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeRequest *req)
{
NvmeNamespace *ns = NULL;
@ -5584,6 +6243,11 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeRequest *req)
return NVME_CMD_SET_CMB_REJECTED | NVME_DNR;
}
break;
case NVME_FDP_MODE:
/* spec: abort with cmd seq err if there's one or more NS' in endgrp */
return NVME_CMD_SEQ_ERROR | NVME_DNR;
case NVME_FDP_EVENTS:
return nvme_set_feature_fdp_events(n, ns, req);
default:
return NVME_FEAT_NOT_CHANGEABLE | NVME_DNR;
}
@ -6159,6 +6823,7 @@ static uint16_t nvme_directive_send(NvmeCtrl *n, NvmeRequest *req)
static uint16_t nvme_directive_receive(NvmeCtrl *n, NvmeRequest *req)
{
NvmeNamespace *ns;
uint32_t dw10 = le32_to_cpu(req->cmd.cdw10);
uint32_t dw11 = le32_to_cpu(req->cmd.cdw11);
uint32_t nsid = le32_to_cpu(req->cmd.nsid);
@ -6180,7 +6845,30 @@ static uint16_t nvme_directive_receive(NvmeCtrl *n, NvmeRequest *req)
return NVME_INVALID_FIELD | NVME_DNR;
}
return nvme_c2h(n, (uint8_t *)&id, trans_len, req);
ns = nvme_ns(n, nsid);
if (!ns) {
return NVME_INVALID_FIELD | NVME_DNR;
}
switch (dtype) {
case NVME_DIRECTIVE_IDENTIFY:
switch (doper) {
case NVME_DIRECTIVE_RETURN_PARAMS:
if (ns->endgrp->fdp.enabled) {
id.supported |= 1 << NVME_DIRECTIVE_DATA_PLACEMENT;
id.enabled |= 1 << NVME_DIRECTIVE_DATA_PLACEMENT;
id.persistent |= 1 << NVME_DIRECTIVE_DATA_PLACEMENT;
}
return nvme_c2h(n, (uint8_t *)&id, trans_len, req);
default:
return NVME_INVALID_FIELD | NVME_DNR;
}
default:
return NVME_INVALID_FIELD;
}
}
static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequest *req)
@ -7545,6 +8233,10 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev)
ctratt |= NVME_CTRATT_ENDGRPS;
id->endgidmax = cpu_to_le16(0x1);
if (n->subsys->endgrp.fdp.enabled) {
ctratt |= NVME_CTRATT_FDPS;
}
}
id->ctratt = cpu_to_le32(ctratt);

143
hw/nvme/ns.c
View File

@ -14,8 +14,10 @@
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qemu/cutils.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "qemu/bitops.h"
#include "sysemu/sysemu.h"
#include "sysemu/block-backend.h"
@ -377,6 +379,130 @@ static void nvme_zoned_ns_shutdown(NvmeNamespace *ns)
assert(ns->nr_open_zones == 0);
}
static NvmeRuHandle *nvme_find_ruh_by_attr(NvmeEnduranceGroup *endgrp,
uint8_t ruha, uint16_t *ruhid)
{
for (uint16_t i = 0; i < endgrp->fdp.nruh; i++) {
NvmeRuHandle *ruh = &endgrp->fdp.ruhs[i];
if (ruh->ruha == ruha) {
*ruhid = i;
return ruh;
}
}
return NULL;
}
static bool nvme_ns_init_fdp(NvmeNamespace *ns, Error **errp)
{
NvmeEnduranceGroup *endgrp = ns->endgrp;
NvmeRuHandle *ruh;
uint8_t lbafi = NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas);
unsigned int *ruhid, *ruhids;
char *r, *p, *token;
uint16_t *ph;
if (!ns->params.fdp.ruhs) {
ns->fdp.nphs = 1;
ph = ns->fdp.phs = g_new(uint16_t, 1);
ruh = nvme_find_ruh_by_attr(endgrp, NVME_RUHA_CTRL, ph);
if (!ruh) {
ruh = nvme_find_ruh_by_attr(endgrp, NVME_RUHA_UNUSED, ph);
if (!ruh) {
error_setg(errp, "no unused reclaim unit handles left");
return false;
}
ruh->ruha = NVME_RUHA_CTRL;
ruh->lbafi = lbafi;
ruh->ruamw = endgrp->fdp.runs >> ns->lbaf.ds;
for (uint16_t rg = 0; rg < endgrp->fdp.nrg; rg++) {
ruh->rus[rg].ruamw = ruh->ruamw;
}
} else if (ruh->lbafi != lbafi) {
error_setg(errp, "lba format index of controller assigned "
"reclaim unit handle does not match namespace lba "
"format index");
return false;
}
return true;
}
ruhid = ruhids = g_new0(unsigned int, endgrp->fdp.nruh);
r = p = strdup(ns->params.fdp.ruhs);
/* parse the placement handle identifiers */
while ((token = qemu_strsep(&p, ";")) != NULL) {
ns->fdp.nphs += 1;
if (ns->fdp.nphs > NVME_FDP_MAXPIDS ||
ns->fdp.nphs == endgrp->fdp.nruh) {
error_setg(errp, "too many placement handles");
free(r);
return false;
}
if (qemu_strtoui(token, NULL, 0, ruhid++) < 0) {
error_setg(errp, "cannot parse reclaim unit handle identifier");
free(r);
return false;
}
}
free(r);
ph = ns->fdp.phs = g_new(uint16_t, ns->fdp.nphs);
ruhid = ruhids;
/* verify the identifiers */
for (unsigned int i = 0; i < ns->fdp.nphs; i++, ruhid++, ph++) {
if (*ruhid >= endgrp->fdp.nruh) {
error_setg(errp, "invalid reclaim unit handle identifier");
return false;
}
ruh = &endgrp->fdp.ruhs[*ruhid];
switch (ruh->ruha) {
case NVME_RUHA_UNUSED:
ruh->ruha = NVME_RUHA_HOST;
ruh->lbafi = lbafi;
ruh->ruamw = endgrp->fdp.runs >> ns->lbaf.ds;
for (uint16_t rg = 0; rg < endgrp->fdp.nrg; rg++) {
ruh->rus[rg].ruamw = ruh->ruamw;
}
break;
case NVME_RUHA_HOST:
if (ruh->lbafi != lbafi) {
error_setg(errp, "lba format index of host assigned"
"reclaim unit handle does not match namespace "
"lba format index");
return false;
}
break;
case NVME_RUHA_CTRL:
error_setg(errp, "reclaim unit handle is controller assigned");
return false;
default:
abort();
}
*ph = *ruhid;
}
return true;
}
static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp)
{
unsigned int pi_size;
@ -417,6 +543,11 @@ static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp)
return -1;
}
if (ns->params.zoned && ns->endgrp && ns->endgrp->fdp.enabled) {
error_setg(errp, "cannot be a zoned- in an FDP configuration");
return -1;
}
if (ns->params.zoned) {
if (ns->params.max_active_zones) {
if (ns->params.max_open_zones > ns->params.max_active_zones) {
@ -502,6 +633,12 @@ int nvme_ns_setup(NvmeNamespace *ns, Error **errp)
nvme_ns_init_zoned(ns);
}
if (ns->endgrp && ns->endgrp->fdp.enabled) {
if (!nvme_ns_init_fdp(ns, errp)) {
return -1;
}
}
return 0;
}
@ -525,6 +662,10 @@ void nvme_ns_cleanup(NvmeNamespace *ns)
g_free(ns->zone_array);
g_free(ns->zd_extensions);
}
if (ns->endgrp && ns->endgrp->fdp.enabled) {
g_free(ns->fdp.phs);
}
}
static void nvme_ns_unrealize(DeviceState *dev)
@ -562,6 +703,7 @@ static void nvme_ns_realize(DeviceState *dev, Error **errp)
return;
}
ns->subsys = subsys;
ns->endgrp = &subsys->endgrp;
}
if (nvme_ns_setup(ns, errp)) {
@ -648,6 +790,7 @@ static Property nvme_ns_props[] = {
DEFINE_PROP_SIZE("zoned.zrwafg", NvmeNamespace, params.zrwafg, -1),
DEFINE_PROP_BOOL("eui64-default", NvmeNamespace, params.eui64_default,
false),
DEFINE_PROP_STRING("fdp.ruhs", NvmeNamespace, params.fdp.ruhs),
DEFINE_PROP_END_OF_LIST(),
};

85
hw/nvme/nvme.h
View File

@ -27,6 +27,8 @@
#define NVME_MAX_CONTROLLERS 256
#define NVME_MAX_NAMESPACES 256
#define NVME_EUI64_DEFAULT ((uint64_t)0x5254000000000000)
#define NVME_FDP_MAX_EVENTS 63
#define NVME_FDP_MAXPIDS 128
QEMU_BUILD_BUG_ON(NVME_MAX_NAMESPACES > NVME_NSID_BROADCAST - 1);
@ -45,8 +47,47 @@ typedef struct NvmeBus {
OBJECT_CHECK(NvmeSubsystem, (obj), TYPE_NVME_SUBSYS)
#define SUBSYS_SLOT_RSVD (void *)0xFFFF
typedef struct NvmeReclaimUnit {
uint64_t ruamw;
} NvmeReclaimUnit;
typedef struct NvmeRuHandle {
uint8_t ruht;
uint8_t ruha;
uint64_t event_filter;
uint8_t lbafi;
uint64_t ruamw;
/* reclaim units indexed by reclaim group */
NvmeReclaimUnit *rus;
} NvmeRuHandle;
typedef struct NvmeFdpEventBuffer {
NvmeFdpEvent events[NVME_FDP_MAX_EVENTS];
unsigned int nelems;
unsigned int start;
unsigned int next;
} NvmeFdpEventBuffer;
typedef struct NvmeEnduranceGroup {
uint8_t event_conf;
struct {
NvmeFdpEventBuffer host_events, ctrl_events;
uint16_t nruh;
uint16_t nrg;
uint8_t rgif;
uint64_t runs;
uint64_t hbmw;
uint64_t mbmw;
uint64_t mbe;
bool enabled;
NvmeRuHandle *ruhs;
} fdp;
} NvmeEnduranceGroup;
typedef struct NvmeSubsystem {
@ -55,11 +96,19 @@ typedef struct NvmeSubsystem {
uint8_t subnqn[256];
char *serial;
NvmeCtrl *ctrls[NVME_MAX_CONTROLLERS];
NvmeNamespace *namespaces[NVME_MAX_NAMESPACES + 1];
NvmeCtrl *ctrls[NVME_MAX_CONTROLLERS];
NvmeNamespace *namespaces[NVME_MAX_NAMESPACES + 1];
NvmeEnduranceGroup endgrp;
struct {
char *nqn;
struct {
bool enabled;
uint64_t runs;
uint16_t nruh;
uint32_t nrg;
} fdp;
} params;
} NvmeSubsystem;
@ -100,6 +149,21 @@ typedef struct NvmeZone {
QTAILQ_ENTRY(NvmeZone) entry;
} NvmeZone;
#define FDP_EVT_MAX 0xff
#define NVME_FDP_MAX_NS_RUHS 32u
#define FDPVSS 0
static const uint8_t nvme_fdp_evf_shifts[FDP_EVT_MAX] = {
/* Host events */
[FDP_EVT_RU_NOT_FULLY_WRITTEN] = 0,
[FDP_EVT_RU_ATL_EXCEEDED] = 1,
[FDP_EVT_CTRL_RESET_RUH] = 2,
[FDP_EVT_INVALID_PID] = 3,
/* CTRL events */
[FDP_EVT_MEDIA_REALLOC] = 32,
[FDP_EVT_RUH_IMPLICIT_RU_CHANGE] = 33,
};
typedef struct NvmeNamespaceParams {
bool detached;
bool shared;
@ -129,6 +193,10 @@ typedef struct NvmeNamespaceParams {
uint32_t numzrwa;
uint64_t zrwas;
uint64_t zrwafg;
struct {
char *ruhs;
} fdp;
} NvmeNamespaceParams;
typedef struct NvmeNamespace {
@ -172,10 +240,17 @@ typedef struct NvmeNamespace {
NvmeNamespaceParams params;
NvmeSubsystem *subsys;
NvmeEnduranceGroup *endgrp;
struct {
uint32_t err_rec;
} features;
struct {
uint16_t nphs;
/* reclaim unit handle identifiers indexed by placement handle */
uint16_t *phs;
} fdp;
} NvmeNamespace;
static inline uint32_t nvme_nsid(NvmeNamespace *ns)
@ -279,6 +354,12 @@ static inline void nvme_aor_dec_active(NvmeNamespace *ns)
assert(ns->nr_active_zones >= 0);
}
static inline void nvme_fdp_stat_inc(uint64_t *a, uint64_t b)
{
uint64_t ret = *a + b;
*a = ret < *a ? UINT64_MAX : ret;
}
void nvme_ns_init_format(NvmeNamespace *ns);
int nvme_ns_setup(NvmeNamespace *ns, Error **errp);
void nvme_ns_drain(NvmeNamespace *ns);

94
hw/nvme/subsys.c
View File

@ -7,10 +7,13 @@
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "nvme.h"
#define NVME_DEFAULT_RU_SIZE (96 * MiB)
static int nvme_subsys_reserve_cntlids(NvmeCtrl *n, int start, int num)
{
NvmeSubsystem *subsys = n->subsys;
@ -109,13 +112,95 @@ void nvme_subsys_unregister_ctrl(NvmeSubsystem *subsys, NvmeCtrl *n)
n->cntlid = -1;
}
static void nvme_subsys_setup(NvmeSubsystem *subsys)
static bool nvme_calc_rgif(uint16_t nruh, uint16_t nrg, uint8_t *rgif)
{
uint16_t val;
unsigned int i;
if (unlikely(nrg == 1)) {
/* PIDRG_NORGI scenario, all of pid is used for PHID */
*rgif = 0;
return true;
}
val = nrg;
i = 0;
while (val) {
val >>= 1;
i++;
}
*rgif = i;
/* ensure remaining bits suffice to represent number of phids in a RG */
if (unlikely((UINT16_MAX >> i) < nruh)) {
*rgif = 0;
return false;
}
return true;
}
static bool nvme_subsys_setup_fdp(NvmeSubsystem *subsys, Error **errp)
{
NvmeEnduranceGroup *endgrp = &subsys->endgrp;
if (!subsys->params.fdp.runs) {
error_setg(errp, "fdp.runs must be non-zero");
return false;
}
endgrp->fdp.runs = subsys->params.fdp.runs;
if (!subsys->params.fdp.nrg) {
error_setg(errp, "fdp.nrg must be non-zero");
return false;
}
endgrp->fdp.nrg = subsys->params.fdp.nrg;
if (!subsys->params.fdp.nruh) {
error_setg(errp, "fdp.nruh must be non-zero");
return false;
}
endgrp->fdp.nruh = subsys->params.fdp.nruh;
if (!nvme_calc_rgif(endgrp->fdp.nruh, endgrp->fdp.nrg, &endgrp->fdp.rgif)) {
error_setg(errp,
"cannot derive a valid rgif (nruh %"PRIu16" nrg %"PRIu32")",
endgrp->fdp.nruh, endgrp->fdp.nrg);
return false;
}
endgrp->fdp.ruhs = g_new(NvmeRuHandle, endgrp->fdp.nruh);
for (uint16_t ruhid = 0; ruhid < endgrp->fdp.nruh; ruhid++) {
endgrp->fdp.ruhs[ruhid] = (NvmeRuHandle) {
.ruht = NVME_RUHT_INITIALLY_ISOLATED,
.ruha = NVME_RUHA_UNUSED,
};
endgrp->fdp.ruhs[ruhid].rus = g_new(NvmeReclaimUnit, endgrp->fdp.nrg);
}
endgrp->fdp.enabled = true;
return true;
}
static bool nvme_subsys_setup(NvmeSubsystem *subsys, Error **errp)
{
const char *nqn = subsys->params.nqn ?
subsys->params.nqn : subsys->parent_obj.id;
snprintf((char *)subsys->subnqn, sizeof(subsys->subnqn),
"nqn.2019-08.org.qemu:%s", nqn);
if (subsys->params.fdp.enabled && !nvme_subsys_setup_fdp(subsys, errp)) {
return false;
}
return true;
}
static void nvme_subsys_realize(DeviceState *dev, Error **errp)
@ -124,11 +209,16 @@ static void nvme_subsys_realize(DeviceState *dev, Error **errp)
qbus_init(&subsys->bus, sizeof(NvmeBus), TYPE_NVME_BUS, dev, dev->id);
nvme_subsys_setup(subsys);
nvme_subsys_setup(subsys, errp);
}
static Property nvme_subsystem_props[] = {
DEFINE_PROP_STRING("nqn", NvmeSubsystem, params.nqn),
DEFINE_PROP_BOOL("fdp", NvmeSubsystem, params.fdp.enabled, false),
DEFINE_PROP_SIZE("fdp.runs", NvmeSubsystem, params.fdp.runs,
NVME_DEFAULT_RU_SIZE),
DEFINE_PROP_UINT32("fdp.nrg", NvmeSubsystem, params.fdp.nrg, 1),
DEFINE_PROP_UINT16("fdp.nruh", NvmeSubsystem, params.fdp.nruh, 0),
DEFINE_PROP_END_OF_LIST(),
};

1
hw/nvme/trace-events
View File

@ -117,6 +117,7 @@ pci_nvme_clear_ns_reset(uint32_t state, uint64_t slba) "zone state=%"PRIu32", sl
pci_nvme_zoned_zrwa_implicit_flush(uint64_t zslba, uint32_t nlb) "zslba 0x%"PRIx64" nlb %"PRIu32""
pci_nvme_pci_reset(void) "PCI Function Level Reset"
pci_nvme_virt_mngmt(uint16_t cid, uint16_t act, uint16_t cntlid, const char* rt, uint16_t nr) "cid %"PRIu16", act=0x%"PRIx16", ctrlid=%"PRIu16" %s nr=%"PRIu16""
pci_nvme_fdp_ruh_change(uint16_t rgid, uint16_t ruhid) "change RU on RUH rgid=%"PRIu16", ruhid=%"PRIu16""
# error conditions
pci_nvme_err_mdts(size_t len) "len %zu"

173
include/block/nvme.h
View File

@ -1,6 +1,8 @@
#ifndef BLOCK_NVME_H
#define BLOCK_NVME_H
#include "hw/registerfields.h"
typedef struct QEMU_PACKED NvmeBar {
uint64_t cap;
uint32_t vs;
@ -631,7 +633,9 @@ enum NvmeIoCommands {
NVME_CMD_WRITE_ZEROES = 0x08,
NVME_CMD_DSM = 0x09,
NVME_CMD_VERIFY = 0x0c,
NVME_CMD_IO_MGMT_RECV = 0x12,
NVME_CMD_COPY = 0x19,
NVME_CMD_IO_MGMT_SEND = 0x1d,
NVME_CMD_ZONE_MGMT_SEND = 0x79,
NVME_CMD_ZONE_MGMT_RECV = 0x7a,
NVME_CMD_ZONE_APPEND = 0x7d,
@ -724,7 +728,9 @@ typedef struct QEMU_PACKED NvmeRwCmd {
uint64_t slba;
uint16_t nlb;
uint16_t control;
uint32_t dsmgmt;
uint8_t dsmgmt;
uint8_t rsvd;
uint16_t dspec;
uint32_t reftag;
uint16_t apptag;
uint16_t appmask;
@ -895,6 +901,8 @@ enum NvmeStatusCodes {
NVME_INVALID_PRP_OFFSET = 0x0013,
NVME_CMD_SET_CMB_REJECTED = 0x002b,
NVME_INVALID_CMD_SET = 0x002c,
NVME_FDP_DISABLED = 0x0029,
NVME_INVALID_PHID_LIST = 0x002a,
NVME_LBA_RANGE = 0x0080,
NVME_CAP_EXCEEDED = 0x0081,
NVME_NS_NOT_READY = 0x0082,
@ -1031,6 +1039,10 @@ enum NvmeLogIdentifier {
NVME_LOG_CHANGED_NSLIST = 0x04,
NVME_LOG_CMD_EFFECTS = 0x05,
NVME_LOG_ENDGRP = 0x09,
NVME_LOG_FDP_CONFS = 0x20,
NVME_LOG_FDP_RUH_USAGE = 0x21,
NVME_LOG_FDP_STATS = 0x22,
NVME_LOG_FDP_EVENTS = 0x23,
};
typedef struct QEMU_PACKED NvmePSD {
@ -1160,6 +1172,7 @@ enum NvmeIdCtrlOaes {
enum NvmeIdCtrlCtratt {
NVME_CTRATT_ENDGRPS = 1 << 4,
NVME_CTRATT_ELBAS = 1 << 15,
NVME_CTRATT_FDPS = 1 << 19,
};
enum NvmeIdCtrlOacs {
@ -1273,6 +1286,8 @@ enum NvmeFeatureIds {
NVME_TIMESTAMP = 0xe,
NVME_HOST_BEHAVIOR_SUPPORT = 0x16,
NVME_COMMAND_SET_PROFILE = 0x19,
NVME_FDP_MODE = 0x1d,
NVME_FDP_EVENTS = 0x1e,
NVME_SOFTWARE_PROGRESS_MARKER = 0x80,
NVME_FID_MAX = 0x100,
};
@ -1652,22 +1667,164 @@ typedef struct NvmeDirectiveIdentify {
uint8_t unused1[31];
uint8_t enabled;
uint8_t unused33[31];
uint8_t rsvd64[4032];
uint8_t persistent;
uint8_t unused65[31];
uint8_t rsvd64[4000];
} NvmeDirectiveIdentify;
enum NvmeDirective {
NVME_DIRECTIVE_SUPPORTED = 0x0,
NVME_DIRECTIVE_ENABLED = 0x1,
};
enum NvmeDirectiveTypes {
NVME_DIRECTIVE_IDENTIFY = 0x0,
NVME_DIRECTIVE_IDENTIFY = 0x0,
NVME_DIRECTIVE_DATA_PLACEMENT = 0x2,
};
enum NvmeDirectiveOperations {
NVME_DIRECTIVE_RETURN_PARAMS = 0x1,
};
typedef struct QEMU_PACKED NvmeFdpConfsHdr {
uint16_t num_confs;
uint8_t version;
uint8_t rsvd3;
uint32_t size;
uint8_t rsvd8[8];
} NvmeFdpConfsHdr;
REG8(FDPA, 0x0)
FIELD(FDPA, RGIF, 0, 4)
FIELD(FDPA, VWC, 4, 1)
FIELD(FDPA, VALID, 7, 1);
typedef struct QEMU_PACKED NvmeFdpDescrHdr {
uint16_t descr_size;
uint8_t fdpa;
uint8_t vss;
uint32_t nrg;
uint16_t nruh;
uint16_t maxpids;
uint32_t nnss;
uint64_t runs;
uint32_t erutl;
uint8_t rsvd28[36];
} NvmeFdpDescrHdr;
enum NvmeRuhType {
NVME_RUHT_INITIALLY_ISOLATED = 1,
NVME_RUHT_PERSISTENTLY_ISOLATED = 2,
};
typedef struct QEMU_PACKED NvmeRuhDescr {
uint8_t ruht;
uint8_t rsvd1[3];
} NvmeRuhDescr;
typedef struct QEMU_PACKED NvmeRuhuLog {
uint16_t nruh;
uint8_t rsvd2[6];
} NvmeRuhuLog;
enum NvmeRuhAttributes {
NVME_RUHA_UNUSED = 0,
NVME_RUHA_HOST = 1,
NVME_RUHA_CTRL = 2,
};
typedef struct QEMU_PACKED NvmeRuhuDescr {
uint8_t ruha;
uint8_t rsvd1[7];
} NvmeRuhuDescr;
typedef struct QEMU_PACKED NvmeFdpStatsLog {
uint64_t hbmw[2];
uint64_t mbmw[2];
uint64_t mbe[2];
uint8_t rsvd48[16];
} NvmeFdpStatsLog;
typedef struct QEMU_PACKED NvmeFdpEventsLog {
uint32_t num_events;
uint8_t rsvd4[60];
} NvmeFdpEventsLog;
enum NvmeFdpEventType {
FDP_EVT_RU_NOT_FULLY_WRITTEN = 0x0,
FDP_EVT_RU_ATL_EXCEEDED = 0x1,
FDP_EVT_CTRL_RESET_RUH = 0x2,
FDP_EVT_INVALID_PID = 0x3,
FDP_EVT_MEDIA_REALLOC = 0x80,
FDP_EVT_RUH_IMPLICIT_RU_CHANGE = 0x81,
};
enum NvmeFdpEventFlags {
FDPEF_PIV = 1 << 0,
FDPEF_NSIDV = 1 << 1,
FDPEF_LV = 1 << 2,
};
typedef struct QEMU_PACKED NvmeFdpEvent {
uint8_t type;
uint8_t flags;
uint16_t pid;
uint64_t timestamp;
uint32_t nsid;
uint64_t type_specific[2];
uint16_t rgid;
uint8_t ruhid;
uint8_t rsvd35[5];
uint64_t vendor[3];
} NvmeFdpEvent;
typedef struct QEMU_PACKED NvmePhidList {
uint16_t nnruhd;
uint8_t rsvd2[6];
} NvmePhidList;
typedef struct QEMU_PACKED NvmePhidDescr {
uint8_t ruht;
uint8_t rsvd1;
uint16_t ruhid;
} NvmePhidDescr;
REG32(FEAT_FDP, 0x0)
FIELD(FEAT_FDP, FDPE, 0, 1)
FIELD(FEAT_FDP, CONF_NDX, 8, 8);
typedef struct QEMU_PACKED NvmeFdpEventDescr {
uint8_t evt;
uint8_t evta;
} NvmeFdpEventDescr;
REG32(NVME_IOMR, 0x0)
FIELD(NVME_IOMR, MO, 0, 8)
FIELD(NVME_IOMR, MOS, 16, 16);
enum NvmeIomr2Mo {
NVME_IOMR_MO_NOP = 0x0,
NVME_IOMR_MO_RUH_STATUS = 0x1,
NVME_IOMR_MO_VENDOR_SPECIFIC = 0x255,
};
typedef struct QEMU_PACKED NvmeRuhStatus {
uint8_t rsvd0[14];
uint16_t nruhsd;
} NvmeRuhStatus;
typedef struct QEMU_PACKED NvmeRuhStatusDescr {
uint16_t pid;
uint16_t ruhid;
uint32_t earutr;
uint64_t ruamw;
uint8_t rsvd16[16];
} NvmeRuhStatusDescr;
REG32(NVME_IOMS, 0x0)
FIELD(NVME_IOMS, MO, 0, 8)
FIELD(NVME_IOMS, MOS, 16, 16);
enum NvmeIoms2Mo {
NVME_IOMS_MO_NOP = 0x0,
NVME_IOMS_MO_RUH_UPDATE = 0x1,
};
static inline void _nvme_check_size(void)
{
QEMU_BUILD_BUG_ON(sizeof(NvmeBar) != 4096);