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71cd42e139
numam-spdk/lib/nvmf/ctrlr.c
Jacek Kalwas 71cd42e139 nvmf: association timer triggered on shutdown 
After CC.EN transitions to ‘0’ (due to shutdown or reset), the
association between the host and controller shall be preserved for at
least 2 minutes. After this time, the association may be removed if
the controller has not been re-enabled.

Signed-off-by: Jacek Kalwas <jacek.kalwas@intel.com>
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Change-Id: I4734600067fd4b7306b46f1325fdd5031e81c079
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2984
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2020-08-13 07:53:08 +00:00

3372 lines
102 KiB
C
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/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation. All rights reserved.
* Copyright (c) 2019, 2020 Mellanox Technologies LTD. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "spdk/stdinc.h"
#include "nvmf_internal.h"
#include "transport.h"
#include "spdk/bit_array.h"
#include "spdk/endian.h"
#include "spdk/thread.h"
#include "spdk/trace.h"
#include "spdk/nvme_spec.h"
#include "spdk/nvmf_cmd.h"
#include "spdk/string.h"
#include "spdk/util.h"
#include "spdk/version.h"
#include "spdk_internal/log.h"
#define MIN_KEEP_ALIVE_TIMEOUT_IN_MS 10000
#define NVMF_DISC_KATO_IN_MS 120000
#define KAS_TIME_UNIT_IN_MS 100
#define KAS_DEFAULT_VALUE (MIN_KEEP_ALIVE_TIMEOUT_IN_MS / KAS_TIME_UNIT_IN_MS)
/*
* Report the SPDK version as the firmware revision.
* SPDK_VERSION_STRING won't fit into FR (only 8 bytes), so try to fit the most important parts.
*/
#define FW_VERSION SPDK_VERSION_MAJOR_STRING SPDK_VERSION_MINOR_STRING SPDK_VERSION_PATCH_STRING
/*
* Support for custom admin command handlers
*/
struct spdk_nvmf_custom_admin_cmd {
spdk_nvmf_custom_cmd_hdlr hdlr;
uint32_t nsid; /* nsid to forward */
};
static struct spdk_nvmf_custom_admin_cmd g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_MAX_OPC + 1];
static void _nvmf_request_complete(void *ctx);
static inline void
nvmf_invalid_connect_response(struct spdk_nvmf_fabric_connect_rsp *rsp,
uint8_t iattr, uint16_t ipo)
{
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
rsp->status_code_specific.invalid.iattr = iattr;
rsp->status_code_specific.invalid.ipo = ipo;
}
#define SPDK_NVMF_INVALID_CONNECT_CMD(rsp, field) \
nvmf_invalid_connect_response(rsp, 0, offsetof(struct spdk_nvmf_fabric_connect_cmd, field))
#define SPDK_NVMF_INVALID_CONNECT_DATA(rsp, field) \
nvmf_invalid_connect_response(rsp, 1, offsetof(struct spdk_nvmf_fabric_connect_data, field))
static void
nvmf_ctrlr_stop_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr)
{
if (!ctrlr) {
SPDK_ERRLOG("Controller is NULL\n");
return;
}
if (ctrlr->keep_alive_poller == NULL) {
return;
}
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Stop keep alive poller\n");
spdk_poller_unregister(&ctrlr->keep_alive_poller);
}
static void
nvmf_ctrlr_stop_association_timer(struct spdk_nvmf_ctrlr *ctrlr)
{
if (!ctrlr) {
SPDK_ERRLOG("Controller is NULL\n");
assert(false);
return;
}
if (ctrlr->association_timer == NULL) {
return;
}
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Stop association timer\n");
spdk_poller_unregister(&ctrlr->association_timer);
}
static void
nvmf_ctrlr_disconnect_qpairs_done(struct spdk_io_channel_iter *i, int status)
{
if (status == 0) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ctrlr disconnect qpairs complete successfully\n");
} else {
SPDK_ERRLOG("Fail to disconnect ctrlr qpairs\n");
}
}
static int
_nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i, bool include_admin)
{
int rc = 0;
struct spdk_nvmf_ctrlr *ctrlr;
struct spdk_nvmf_qpair *qpair, *temp_qpair;
struct spdk_io_channel *ch;
struct spdk_nvmf_poll_group *group;
ctrlr = spdk_io_channel_iter_get_ctx(i);
ch = spdk_io_channel_iter_get_channel(i);
group = spdk_io_channel_get_ctx(ch);
TAILQ_FOREACH_SAFE(qpair, &group->qpairs, link, temp_qpair) {
if (qpair->ctrlr == ctrlr && (include_admin || !nvmf_qpair_is_admin_queue(qpair))) {
rc = spdk_nvmf_qpair_disconnect(qpair, NULL, NULL);
if (rc) {
SPDK_ERRLOG("Qpair disconnect failed\n");
return rc;
}
}
}
return rc;
}
static void
nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i)
{
spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, true));
}
static void
nvmf_ctrlr_disconnect_io_qpairs_on_pg(struct spdk_io_channel_iter *i)
{
spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, false));
}
static int
nvmf_ctrlr_keep_alive_poll(void *ctx)
{
uint64_t keep_alive_timeout_tick;
uint64_t now = spdk_get_ticks();
struct spdk_nvmf_ctrlr *ctrlr = ctx;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Polling ctrlr keep alive timeout\n");
/* If the Keep alive feature is in use and the timer expires */
keep_alive_timeout_tick = ctrlr->last_keep_alive_tick +
ctrlr->feat.keep_alive_timer.bits.kato * spdk_get_ticks_hz() / UINT64_C(1000);
if (now > keep_alive_timeout_tick) {
SPDK_NOTICELOG("Disconnecting host from subsystem %s due to keep alive timeout.\n",
ctrlr->subsys->subnqn);
/* set the Controller Fatal Status bit to '1' */
if (ctrlr->vcprop.csts.bits.cfs == 0) {
ctrlr->vcprop.csts.bits.cfs = 1;
/*
* disconnect qpairs, terminate Transport connection
* destroy ctrlr, break the host to controller association
* disconnect qpairs with qpair->ctrlr == ctrlr
*/
spdk_for_each_channel(ctrlr->subsys->tgt,
nvmf_ctrlr_disconnect_qpairs_on_pg,
ctrlr,
nvmf_ctrlr_disconnect_qpairs_done);
}
}
return SPDK_POLLER_BUSY;
}
static void
nvmf_ctrlr_start_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr)
{
if (!ctrlr) {
SPDK_ERRLOG("Controller is NULL\n");
return;
}
/* if cleared to 0 then the Keep Alive Timer is disabled */
if (ctrlr->feat.keep_alive_timer.bits.kato != 0) {
ctrlr->last_keep_alive_tick = spdk_get_ticks();
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Ctrlr add keep alive poller\n");
ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr,
ctrlr->feat.keep_alive_timer.bits.kato * 1000);
}
}
static void
ctrlr_add_qpair_and_update_rsp(struct spdk_nvmf_qpair *qpair,
struct spdk_nvmf_ctrlr *ctrlr,
struct spdk_nvmf_fabric_connect_rsp *rsp)
{
assert(ctrlr->admin_qpair->group->thread == spdk_get_thread());
/* check if we would exceed ctrlr connection limit */
if (qpair->qid >= spdk_bit_array_capacity(ctrlr->qpair_mask)) {
SPDK_ERRLOG("Requested QID %u but Max QID is %u\n",
qpair->qid, spdk_bit_array_capacity(ctrlr->qpair_mask) - 1);
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER;
return;
}
if (spdk_bit_array_get(ctrlr->qpair_mask, qpair->qid)) {
SPDK_ERRLOG("Got I/O connect with duplicate QID %u\n", qpair->qid);
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER;
return;
}
qpair->ctrlr = ctrlr;
spdk_bit_array_set(ctrlr->qpair_mask, qpair->qid);
rsp->status.sc = SPDK_NVME_SC_SUCCESS;
rsp->status_code_specific.success.cntlid = ctrlr->cntlid;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "connect capsule response: cntlid = 0x%04x\n",
rsp->status_code_specific.success.cntlid);
}
static void
_nvmf_ctrlr_add_admin_qpair(void *ctx)
{
struct spdk_nvmf_request *req = ctx;
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
ctrlr->admin_qpair = qpair;
nvmf_ctrlr_start_keep_alive_timer(ctrlr);
ctrlr_add_qpair_and_update_rsp(qpair, ctrlr, rsp);
_nvmf_request_complete(req);
}
static void
_nvmf_subsystem_add_ctrlr(void *ctx)
{
struct spdk_nvmf_request *req = ctx;
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
if (nvmf_subsystem_add_ctrlr(ctrlr->subsys, ctrlr)) {
SPDK_ERRLOG("Unable to add controller to subsystem\n");
spdk_bit_array_free(&ctrlr->qpair_mask);
free(ctrlr);
qpair->ctrlr = NULL;
rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
spdk_nvmf_request_complete(req);
return;
}
spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_admin_qpair, req);
}
static void
nvmf_ctrlr_cdata_init(struct spdk_nvmf_transport *transport, struct spdk_nvmf_subsystem *subsystem,
struct spdk_nvmf_ctrlr_data *cdata)
{
cdata->kas = KAS_DEFAULT_VALUE;
cdata->sgls.supported = 1;
cdata->sgls.keyed_sgl = 1;
cdata->sgls.sgl_offset = 1;
cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16;
cdata->nvmf_specific.ioccsz += transport->opts.in_capsule_data_size / 16;
cdata->nvmf_specific.iorcsz = sizeof(struct spdk_nvme_cpl) / 16;
cdata->nvmf_specific.icdoff = 0; /* offset starts directly after SQE */
cdata->nvmf_specific.ctrattr.ctrlr_model = SPDK_NVMF_CTRLR_MODEL_DYNAMIC;
cdata->nvmf_specific.msdbd = 1;
if (transport->ops->cdata_init) {
transport->ops->cdata_init(transport, subsystem, cdata);
}
}
static struct spdk_nvmf_ctrlr *
nvmf_ctrlr_create(struct spdk_nvmf_subsystem *subsystem,
struct spdk_nvmf_request *req,
struct spdk_nvmf_fabric_connect_cmd *connect_cmd,
struct spdk_nvmf_fabric_connect_data *connect_data)
{
struct spdk_nvmf_ctrlr *ctrlr;
struct spdk_nvmf_transport *transport;
ctrlr = calloc(1, sizeof(*ctrlr));
if (ctrlr == NULL) {
SPDK_ERRLOG("Memory allocation failed\n");
return NULL;
}
TAILQ_INIT(&ctrlr->log_head);
ctrlr->subsys = subsystem;
ctrlr->thread = req->qpair->group->thread;
transport = req->qpair->transport;
ctrlr->qpair_mask = spdk_bit_array_create(transport->opts.max_qpairs_per_ctrlr);
if (!ctrlr->qpair_mask) {
SPDK_ERRLOG("Failed to allocate controller qpair mask\n");
free(ctrlr);
return NULL;
}
nvmf_ctrlr_cdata_init(transport, subsystem, &ctrlr->cdata);
/*
* KAS: This field indicates the granularity of the Keep Alive Timer in 100ms units.
* If this field is cleared to 0h, then Keep Alive is not supported.
*/
if (ctrlr->cdata.kas) {
ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(connect_cmd->kato,
KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) *
KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS;
}
ctrlr->feat.async_event_configuration.bits.ns_attr_notice = 1;
ctrlr->feat.volatile_write_cache.bits.wce = 1;
if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) {
/*
* If keep-alive timeout is not set, discovery controllers use some
* arbitrary high value in order to cleanup stale discovery sessions
*
* From the 1.0a nvme-of spec:
* "The Keep Alive command is reserved for
* Discovery controllers. A transport may specify a
* fixed Discovery controller activity timeout value
* (e.g., 2 minutes). If no commands are received
* by a Discovery controller within that time
* period, the controller may perform the
* actions for Keep Alive Timer expiration".
* kato is in millisecond.
*/
if (ctrlr->feat.keep_alive_timer.bits.kato == 0) {
ctrlr->feat.keep_alive_timer.bits.kato = NVMF_DISC_KATO_IN_MS;
}
}
/* Subtract 1 for admin queue, 1 for 0's based */
ctrlr->feat.number_of_queues.bits.ncqr = transport->opts.max_qpairs_per_ctrlr - 1 -
1;
ctrlr->feat.number_of_queues.bits.nsqr = transport->opts.max_qpairs_per_ctrlr - 1 -
1;
spdk_uuid_copy(&ctrlr->hostid, (struct spdk_uuid *)connect_data->hostid);
memcpy(ctrlr->hostnqn, connect_data->hostnqn, sizeof(ctrlr->hostnqn));
ctrlr->vcprop.cap.raw = 0;
ctrlr->vcprop.cap.bits.cqr = 1; /* NVMe-oF specification required */
ctrlr->vcprop.cap.bits.mqes = transport->opts.max_queue_depth -
1; /* max queue depth */
ctrlr->vcprop.cap.bits.ams = 0; /* optional arb mechanisms */
ctrlr->vcprop.cap.bits.to = 1; /* ready timeout - 500 msec units */
ctrlr->vcprop.cap.bits.dstrd = 0; /* fixed to 0 for NVMe-oF */
ctrlr->vcprop.cap.bits.css = SPDK_NVME_CAP_CSS_NVM; /* NVM command set */
ctrlr->vcprop.cap.bits.mpsmin = 0; /* 2 ^ (12 + mpsmin) == 4k */
ctrlr->vcprop.cap.bits.mpsmax = 0; /* 2 ^ (12 + mpsmax) == 4k */
/* Version Supported: 1.3 */
ctrlr->vcprop.vs.bits.mjr = 1;
ctrlr->vcprop.vs.bits.mnr = 3;
ctrlr->vcprop.vs.bits.ter = 0;
ctrlr->vcprop.cc.raw = 0;
ctrlr->vcprop.cc.bits.en = 0; /* Init controller disabled */
ctrlr->vcprop.csts.raw = 0;
ctrlr->vcprop.csts.bits.rdy = 0; /* Init controller as not ready */
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "cap 0x%" PRIx64 "\n", ctrlr->vcprop.cap.raw);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "vs 0x%x\n", ctrlr->vcprop.vs.raw);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "cc 0x%x\n", ctrlr->vcprop.cc.raw);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "csts 0x%x\n", ctrlr->vcprop.csts.raw);
ctrlr->dif_insert_or_strip = transport->opts.dif_insert_or_strip;
req->qpair->ctrlr = ctrlr;
spdk_thread_send_msg(subsystem->thread, _nvmf_subsystem_add_ctrlr, req);
return ctrlr;
}
static void
_nvmf_ctrlr_destruct(void *ctx)
{
struct spdk_nvmf_ctrlr *ctrlr = ctx;
struct spdk_nvmf_reservation_log *log, *log_tmp;
nvmf_ctrlr_stop_keep_alive_timer(ctrlr);
nvmf_ctrlr_stop_association_timer(ctrlr);
spdk_bit_array_free(&ctrlr->qpair_mask);
TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) {
TAILQ_REMOVE(&ctrlr->log_head, log, link);
free(log);
}
free(ctrlr);
}
void
nvmf_ctrlr_destruct(struct spdk_nvmf_ctrlr *ctrlr)
{
nvmf_subsystem_remove_ctrlr(ctrlr->subsys, ctrlr);
spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr);
}
static void
nvmf_ctrlr_add_io_qpair(void *ctx)
{
struct spdk_nvmf_request *req = ctx;
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
/* Unit test will check qpair->ctrlr after calling spdk_nvmf_ctrlr_connect.
* For error case, the value should be NULL. So set it to NULL at first.
*/
qpair->ctrlr = NULL;
if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) {
SPDK_ERRLOG("I/O connect not allowed on discovery controller\n");
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
goto end;
}
if (!ctrlr->vcprop.cc.bits.en) {
SPDK_ERRLOG("Got I/O connect before ctrlr was enabled\n");
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
goto end;
}
if (1u << ctrlr->vcprop.cc.bits.iosqes != sizeof(struct spdk_nvme_cmd)) {
SPDK_ERRLOG("Got I/O connect with invalid IOSQES %u\n",
ctrlr->vcprop.cc.bits.iosqes);
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
goto end;
}
if (1u << ctrlr->vcprop.cc.bits.iocqes != sizeof(struct spdk_nvme_cpl)) {
SPDK_ERRLOG("Got I/O connect with invalid IOCQES %u\n",
ctrlr->vcprop.cc.bits.iocqes);
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid);
goto end;
}
ctrlr_add_qpair_and_update_rsp(qpair, ctrlr, rsp);
end:
spdk_nvmf_request_complete(req);
}
static void
_nvmf_ctrlr_add_io_qpair(void *ctx)
{
struct spdk_nvmf_request *req = ctx;
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_fabric_connect_data *data = req->data;
struct spdk_nvmf_ctrlr *ctrlr;
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_qpair *admin_qpair;
struct spdk_nvmf_tgt *tgt = qpair->transport->tgt;
struct spdk_nvmf_subsystem *subsystem;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Connect I/O Queue for controller id 0x%x\n", data->cntlid);
subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn);
/* We already checked this in spdk_nvmf_ctrlr_connect */
assert(subsystem != NULL);
ctrlr = nvmf_subsystem_get_ctrlr(subsystem, data->cntlid);
if (ctrlr == NULL) {
SPDK_ERRLOG("Unknown controller ID 0x%x\n", data->cntlid);
SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid);
spdk_nvmf_request_complete(req);
return;
}
admin_qpair = ctrlr->admin_qpair;
qpair->ctrlr = ctrlr;
spdk_thread_send_msg(admin_qpair->group->thread, nvmf_ctrlr_add_io_qpair, req);
}
static bool
nvmf_qpair_access_allowed(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_subsystem *subsystem,
const char *hostnqn)
{
struct spdk_nvme_transport_id listen_trid = {};
if (!spdk_nvmf_subsystem_host_allowed(subsystem, hostnqn)) {
SPDK_ERRLOG("Subsystem '%s' does not allow host '%s'\n", subsystem->subnqn, hostnqn);
return false;
}
if (spdk_nvmf_qpair_get_listen_trid(qpair, &listen_trid)) {
SPDK_ERRLOG("Subsystem '%s' is unable to enforce access control due to an internal error.\n",
subsystem->subnqn);
return false;
}
if (!spdk_nvmf_subsystem_listener_allowed(subsystem, &listen_trid)) {
SPDK_ERRLOG("Subsystem '%s' does not allow host '%s' to connect at this address.\n",
subsystem->subnqn, hostnqn);
return false;
}
return true;
}
static int
_nvmf_ctrlr_connect(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_fabric_connect_data *data = req->data;
struct spdk_nvmf_fabric_connect_cmd *cmd = &req->cmd->connect_cmd;
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_transport *transport = qpair->transport;
struct spdk_nvmf_ctrlr *ctrlr;
struct spdk_nvmf_subsystem *subsystem;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "recfmt 0x%x qid %u sqsize %u\n",
cmd->recfmt, cmd->qid, cmd->sqsize);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Connect data:\n");
SPDK_DEBUGLOG(SPDK_LOG_NVMF, " cntlid: 0x%04x\n", data->cntlid);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, " hostid: %08x-%04x-%04x-%02x%02x-%04x%08x ***\n",
ntohl(*(uint32_t *)&data->hostid[0]),
ntohs(*(uint16_t *)&data->hostid[4]),
ntohs(*(uint16_t *)&data->hostid[6]),
data->hostid[8],
data->hostid[9],
ntohs(*(uint16_t *)&data->hostid[10]),
ntohl(*(uint32_t *)&data->hostid[12]));
SPDK_DEBUGLOG(SPDK_LOG_NVMF, " subnqn: \"%s\"\n", data->subnqn);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, " hostnqn: \"%s\"\n", data->hostnqn);
subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn);
if (!subsystem) {
SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (cmd->recfmt != 0) {
SPDK_ERRLOG("Connect command unsupported RECFMT %u\n", cmd->recfmt);
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVMF_FABRIC_SC_INCOMPATIBLE_FORMAT;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/*
* SQSIZE is a 0-based value, so it must be at least 1 (minimum queue depth is 2) and
* strictly less than max_aq_depth (admin queues) or max_queue_depth (io queues).
*/
if (cmd->sqsize == 0) {
SPDK_ERRLOG("Invalid SQSIZE = 0\n");
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (cmd->qid == 0) {
if (cmd->sqsize >= transport->opts.max_aq_depth) {
SPDK_ERRLOG("Invalid SQSIZE for admin queue %u (min 1, max %u)\n",
cmd->sqsize, transport->opts.max_aq_depth - 1);
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
} else if (cmd->sqsize >= transport->opts.max_queue_depth) {
SPDK_ERRLOG("Invalid SQSIZE %u (min 1, max %u)\n",
cmd->sqsize, transport->opts.max_queue_depth - 1);
SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
qpair->sq_head_max = cmd->sqsize;
qpair->qid = cmd->qid;
if (0 == qpair->qid) {
qpair->group->stat.admin_qpairs++;
} else {
qpair->group->stat.io_qpairs++;
}
if (cmd->qid == 0) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Connect Admin Queue for controller ID 0x%x\n", data->cntlid);
if (data->cntlid != 0xFFFF) {
/* This NVMf target only supports dynamic mode. */
SPDK_ERRLOG("The NVMf target only supports dynamic mode (CNTLID = 0x%x).\n", data->cntlid);
SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* Establish a new ctrlr */
ctrlr = nvmf_ctrlr_create(subsystem, req, cmd, data);
if (!ctrlr) {
SPDK_ERRLOG("nvmf_ctrlr_create() failed\n");
rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
} else {
return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
}
} else {
spdk_thread_send_msg(subsystem->thread, _nvmf_ctrlr_add_io_qpair, req);
return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
}
}
static inline bool
nvmf_request_is_fabric_connect(struct spdk_nvmf_request *req)
{
return req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC &&
req->cmd->nvmf_cmd.fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT;
}
static struct spdk_nvmf_subsystem_poll_group *
nvmf_subsystem_pg_from_connect_cmd(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_fabric_connect_data *data;
struct spdk_nvmf_subsystem *subsystem;
struct spdk_nvmf_tgt *tgt;
assert(nvmf_request_is_fabric_connect(req));
assert(req->qpair->ctrlr == NULL);
data = req->data;
tgt = req->qpair->transport->tgt;
subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn);
if (subsystem == NULL) {
return NULL;
}
return &req->qpair->group->sgroups[subsystem->id];
}
int
spdk_nvmf_ctrlr_connect(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_subsystem_poll_group *sgroup;
enum spdk_nvmf_request_exec_status status;
sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
if (!sgroup) {
SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
status = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
goto out;
}
sgroup->io_outstanding++;
TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
status = _nvmf_ctrlr_connect(req);
out:
if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
_nvmf_request_complete(req);
}
return status;
}
static int
nvmf_ctrlr_cmd_connect(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_fabric_connect_data *data = req->data;
struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp;
struct spdk_nvmf_transport *transport = req->qpair->transport;
struct spdk_nvmf_subsystem *subsystem;
if (req->length < sizeof(struct spdk_nvmf_fabric_connect_data)) {
SPDK_ERRLOG("Connect command data length 0x%x too small\n", req->length);
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn);
if (!subsystem) {
SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if ((subsystem->state == SPDK_NVMF_SUBSYSTEM_INACTIVE) ||
(subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSING) ||
(subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSED) ||
(subsystem->state == SPDK_NVMF_SUBSYSTEM_DEACTIVATING)) {
SPDK_ERRLOG("Subsystem '%s' is not ready\n", subsystem->subnqn);
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVMF_FABRIC_SC_CONTROLLER_BUSY;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* Ensure that hostnqn is null terminated */
if (!memchr(data->hostnqn, '\0', SPDK_NVMF_NQN_MAX_LEN + 1)) {
SPDK_ERRLOG("Connect HOSTNQN is not null terminated\n");
SPDK_NVMF_INVALID_CONNECT_DATA(rsp, hostnqn);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (!nvmf_qpair_access_allowed(req->qpair, subsystem, data->hostnqn)) {
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_HOST;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
return _nvmf_ctrlr_connect(req);
}
static int
nvmf_ctrlr_association_remove(void *ctx)
{
struct spdk_nvmf_ctrlr *ctrlr = ctx;
int rc;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Disconnecting host from subsystem %s due to association timeout.\n",
ctrlr->subsys->subnqn);
rc = spdk_nvmf_qpair_disconnect(ctrlr->admin_qpair, NULL, NULL);
if (rc < 0) {
SPDK_ERRLOG("Fail to disconnect admin ctrlr qpair\n");
assert(false);
}
nvmf_ctrlr_stop_association_timer(ctrlr);
return 1;
}
static void
nvmf_ctrlr_cc_shn_done(struct spdk_io_channel_iter *i, int status)
{
struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i);
if (status < 0) {
SPDK_ERRLOG("Fail to disconnect io ctrlr qpairs\n");
assert(false);
}
ctrlr->vcprop.csts.bits.shst = SPDK_NVME_SHST_COMPLETE;
/* After CC.EN transitions to 0 (due to shutdown or reset), the association
* between the host and controller shall be preserved for at least 2 minutes */
ctrlr->association_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_association_remove, ctrlr,
ctrlr->admin_qpair->transport->opts.association_timeout);
}
static void
nvmf_ctrlr_cc_reset_done(struct spdk_io_channel_iter *i, int status)
{
struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i);
if (status < 0) {
SPDK_ERRLOG("Fail to disconnect io ctrlr qpairs\n");
assert(false);
}
/* Only a subset of the registers are cleared out on a reset */
ctrlr->vcprop.cc.raw = 0;
ctrlr->vcprop.csts.raw = 0;
}
const struct spdk_nvmf_registers *
spdk_nvmf_ctrlr_get_regs(struct spdk_nvmf_ctrlr *ctrlr)
{
return &ctrlr->vcprop;
}
static uint64_t
nvmf_prop_get_cap(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.cap.raw;
}
static uint64_t
nvmf_prop_get_vs(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.vs.raw;
}
static uint64_t
nvmf_prop_get_cc(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.cc.raw;
}
static bool
nvmf_prop_set_cc(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
{
union spdk_nvme_cc_register cc, diff;
cc.raw = value;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "cur CC: 0x%08x\n", ctrlr->vcprop.cc.raw);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "new CC: 0x%08x\n", cc.raw);
/*
* Calculate which bits changed between the current and new CC.
* Mark each bit as 0 once it is handled to determine if any unhandled bits were changed.
*/
diff.raw = cc.raw ^ ctrlr->vcprop.cc.raw;
if (diff.bits.en) {
if (cc.bits.en) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Property Set CC Enable!\n");
nvmf_ctrlr_stop_association_timer(ctrlr);
ctrlr->vcprop.cc.bits.en = 1;
ctrlr->vcprop.csts.bits.rdy = 1;
} else {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Property Set CC Disable!\n");
ctrlr->vcprop.cc.bits.en = 0;
spdk_for_each_channel(ctrlr->subsys->tgt,
nvmf_ctrlr_disconnect_io_qpairs_on_pg,
ctrlr,
nvmf_ctrlr_cc_reset_done);
}
diff.bits.en = 0;
}
if (diff.bits.shn) {
if (cc.bits.shn == SPDK_NVME_SHN_NORMAL ||
cc.bits.shn == SPDK_NVME_SHN_ABRUPT) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Property Set CC Shutdown %u%ub!\n",
cc.bits.shn >> 1, cc.bits.shn & 1);
ctrlr->vcprop.cc.bits.shn = cc.bits.shn;
spdk_for_each_channel(ctrlr->subsys->tgt,
nvmf_ctrlr_disconnect_io_qpairs_on_pg,
ctrlr,
nvmf_ctrlr_cc_shn_done);
} else if (cc.bits.shn == 0) {
ctrlr->vcprop.cc.bits.shn = 0;
} else {
SPDK_ERRLOG("Prop Set CC: Invalid SHN value %u%ub\n",
cc.bits.shn >> 1, cc.bits.shn & 1);
return false;
}
diff.bits.shn = 0;
}
if (diff.bits.iosqes) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Prop Set IOSQES = %u (%u bytes)\n",
cc.bits.iosqes, 1u << cc.bits.iosqes);
ctrlr->vcprop.cc.bits.iosqes = cc.bits.iosqes;
diff.bits.iosqes = 0;
}
if (diff.bits.iocqes) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Prop Set IOCQES = %u (%u bytes)\n",
cc.bits.iocqes, 1u << cc.bits.iocqes);
ctrlr->vcprop.cc.bits.iocqes = cc.bits.iocqes;
diff.bits.iocqes = 0;
}
if (diff.bits.ams) {
SPDK_ERRLOG("Arbitration Mechanism Selected (AMS) 0x%x not supported!\n", cc.bits.ams);
return false;
}
if (diff.bits.mps) {
SPDK_ERRLOG("Memory Page Size (MPS) %u KiB not supported!\n", (1 << (2 + cc.bits.mps)));
return false;
}
if (diff.bits.css) {
SPDK_ERRLOG("I/O Command Set Selected (CSS) 0x%x not supported!\n", cc.bits.css);
return false;
}
if (diff.raw != 0) {
SPDK_ERRLOG("Prop Set CC toggled reserved bits 0x%x!\n", diff.raw);
return false;
}
return true;
}
static uint64_t
nvmf_prop_get_csts(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.csts.raw;
}
static uint64_t
nvmf_prop_get_aqa(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.aqa.raw;
}
static bool
nvmf_prop_set_aqa(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
{
union spdk_nvme_aqa_register aqa;
aqa.raw = value;
if (aqa.bits.asqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 ||
aqa.bits.acqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 ||
aqa.bits.reserved1 != 0 || aqa.bits.reserved2 != 0) {
return false;
}
ctrlr->vcprop.aqa.raw = value;
return true;
}
static uint64_t
nvmf_prop_get_asq(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.asq;
}
static bool
nvmf_prop_set_asq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
{
ctrlr->vcprop.asq = (ctrlr->vcprop.asq & (0xFFFFFFFFULL << 32ULL)) | value;
return true;
}
static bool
nvmf_prop_set_asq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
{
ctrlr->vcprop.asq = (ctrlr->vcprop.asq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL);
return true;
}
static uint64_t
nvmf_prop_get_acq(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->vcprop.acq;
}
static bool
nvmf_prop_set_acq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
{
ctrlr->vcprop.acq = (ctrlr->vcprop.acq & (0xFFFFFFFFULL << 32ULL)) | value;
return true;
}
static bool
nvmf_prop_set_acq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value)
{
ctrlr->vcprop.acq = (ctrlr->vcprop.acq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL);
return true;
}
struct nvmf_prop {
uint32_t ofst;
uint8_t size;
char name[11];
uint64_t (*get_cb)(struct spdk_nvmf_ctrlr *ctrlr);
bool (*set_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value);
bool (*set_upper_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value);
};
#define PROP(field, size, get_cb, set_cb, set_upper_cb) \
{ \
offsetof(struct spdk_nvme_registers, field), \
size, \
#field, \
get_cb, set_cb, set_upper_cb \
}
static const struct nvmf_prop nvmf_props[] = {
PROP(cap, 8, nvmf_prop_get_cap, NULL, NULL),
PROP(vs, 4, nvmf_prop_get_vs, NULL, NULL),
PROP(cc, 4, nvmf_prop_get_cc, nvmf_prop_set_cc, NULL),
PROP(csts, 4, nvmf_prop_get_csts, NULL, NULL),
PROP(aqa, 4, nvmf_prop_get_aqa, nvmf_prop_set_aqa, NULL),
PROP(asq, 8, nvmf_prop_get_asq, nvmf_prop_set_asq_lower, nvmf_prop_set_asq_upper),
PROP(acq, 8, nvmf_prop_get_acq, nvmf_prop_set_acq_lower, nvmf_prop_set_acq_upper),
};
static const struct nvmf_prop *
find_prop(uint32_t ofst, uint8_t size)
{
size_t i;
for (i = 0; i < SPDK_COUNTOF(nvmf_props); i++) {
const struct nvmf_prop *prop = &nvmf_props[i];
if ((ofst >= prop->ofst) && (ofst + size <= prop->ofst + prop->size)) {
return prop;
}
}
return NULL;
}
static int
nvmf_property_get(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvmf_fabric_prop_get_cmd *cmd = &req->cmd->prop_get_cmd;
struct spdk_nvmf_fabric_prop_get_rsp *response = &req->rsp->prop_get_rsp;
const struct nvmf_prop *prop;
uint8_t size;
response->status.sc = 0;
response->value.u64 = 0;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "size %d, offset 0x%x\n",
cmd->attrib.size, cmd->ofst);
switch (cmd->attrib.size) {
case SPDK_NVMF_PROP_SIZE_4:
size = 4;
break;
case SPDK_NVMF_PROP_SIZE_8:
size = 8;
break;
default:
SPDK_ERRLOG("Invalid size value %d\n", cmd->attrib.size);
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
prop = find_prop(cmd->ofst, size);
if (prop == NULL || prop->get_cb == NULL) {
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "name: %s\n", prop->name);
response->value.u64 = prop->get_cb(ctrlr);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "response value: 0x%" PRIx64 "\n", response->value.u64);
if (size != prop->size) {
/* The size must be 4 and the prop->size is 8. Figure out which part of the property to read. */
assert(size == 4);
assert(prop->size == 8);
if (cmd->ofst == prop->ofst) {
/* Keep bottom 4 bytes only */
response->value.u64 &= 0xFFFFFFFF;
} else {
/* Keep top 4 bytes only */
response->value.u64 >>= 32;
}
}
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_property_set(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvmf_fabric_prop_set_cmd *cmd = &req->cmd->prop_set_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
const struct nvmf_prop *prop;
uint64_t value;
uint8_t size;
bool ret;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "size %d, offset 0x%x, value 0x%" PRIx64 "\n",
cmd->attrib.size, cmd->ofst, cmd->value.u64);
switch (cmd->attrib.size) {
case SPDK_NVMF_PROP_SIZE_4:
size = 4;
break;
case SPDK_NVMF_PROP_SIZE_8:
size = 8;
break;
default:
SPDK_ERRLOG("Invalid size value %d\n", cmd->attrib.size);
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
prop = find_prop(cmd->ofst, size);
if (prop == NULL || prop->set_cb == NULL) {
SPDK_ERRLOG("Invalid offset 0x%x\n", cmd->ofst);
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "name: %s\n", prop->name);
value = cmd->value.u64;
if (prop->size == 4) {
ret = prop->set_cb(ctrlr, (uint32_t)value);
} else if (size != prop->size) {
/* The size must be 4 and the prop->size is 8. Figure out which part of the property to write. */
assert(size == 4);
assert(prop->size == 8);
if (cmd->ofst == prop->ofst) {
ret = prop->set_cb(ctrlr, (uint32_t)value);
} else {
ret = prop->set_upper_cb(ctrlr, (uint32_t)value);
}
} else {
ret = prop->set_cb(ctrlr, (uint32_t)value);
if (ret) {
ret = prop->set_upper_cb(ctrlr, (uint32_t)(value >> 32));
}
}
if (!ret) {
SPDK_ERRLOG("prop set_cb failed\n");
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_arbitration(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Arbitration (cdw11 = 0x%0x)\n", cmd->cdw11);
ctrlr->feat.arbitration.raw = cmd->cdw11;
ctrlr->feat.arbitration.bits.reserved = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_power_management(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Power Management (cdw11 = 0x%0x)\n", cmd->cdw11);
/* Only PS = 0 is allowed, since we report NPSS = 0 */
if (cmd->cdw11_bits.feat_power_management.bits.ps != 0) {
SPDK_ERRLOG("Invalid power state %u\n", cmd->cdw11_bits.feat_power_management.bits.ps);
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ctrlr->feat.power_management.raw = cmd->cdw11;
ctrlr->feat.power_management.bits.reserved = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static bool
temp_threshold_opts_valid(const union spdk_nvme_feat_temperature_threshold *opts)
{
/*
* Valid TMPSEL values:
* 0000b - 1000b: temperature sensors
* 1111b: set all implemented temperature sensors
*/
if (opts->bits.tmpsel >= 9 && opts->bits.tmpsel != 15) {
/* 1001b - 1110b: reserved */
SPDK_ERRLOG("Invalid TMPSEL %u\n", opts->bits.tmpsel);
return false;
}
/*
* Valid THSEL values:
* 00b: over temperature threshold
* 01b: under temperature threshold
*/
if (opts->bits.thsel > 1) {
/* 10b - 11b: reserved */
SPDK_ERRLOG("Invalid THSEL %u\n", opts->bits.thsel);
return false;
}
return true;
}
static int
nvmf_ctrlr_set_features_temperature_threshold(struct spdk_nvmf_request *req)
{
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11);
if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) {
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* TODO: no sensors implemented - ignore new values */
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_get_features_temperature_threshold(struct spdk_nvmf_request *req)
{
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Get Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11);
if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) {
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* TODO: no sensors implemented - return 0 for all thresholds */
rsp->cdw0 = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_error_recovery(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Error Recovery (cdw11 = 0x%0x)\n", cmd->cdw11);
if (cmd->cdw11_bits.feat_error_recovery.bits.dulbe) {
/*
* Host is not allowed to set this bit, since we don't advertise it in
* Identify Namespace.
*/
SPDK_ERRLOG("Host set unsupported DULBE bit\n");
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ctrlr->feat.error_recovery.raw = cmd->cdw11;
ctrlr->feat.error_recovery.bits.reserved = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_volatile_write_cache(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Volatile Write Cache (cdw11 = 0x%0x)\n", cmd->cdw11);
ctrlr->feat.volatile_write_cache.raw = cmd->cdw11;
ctrlr->feat.volatile_write_cache.bits.reserved = 0;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Volatile Write Cache %s\n",
ctrlr->feat.volatile_write_cache.bits.wce ? "Enabled" : "Disabled");
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_write_atomicity(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Write Atomicity (cdw11 = 0x%0x)\n", cmd->cdw11);
ctrlr->feat.write_atomicity.raw = cmd->cdw11;
ctrlr->feat.write_atomicity.bits.reserved = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_host_identifier(struct spdk_nvmf_request *req)
{
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
SPDK_ERRLOG("Set Features - Host Identifier not allowed\n");
response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_get_features_host_identifier(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Get Features - Host Identifier\n");
if (!cmd->cdw11_bits.feat_host_identifier.bits.exhid) {
/* NVMe over Fabrics requires EXHID=1 (128-bit/16-byte host ID) */
SPDK_ERRLOG("Get Features - Host Identifier with EXHID=0 not allowed\n");
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (req->data == NULL || req->length < sizeof(ctrlr->hostid)) {
SPDK_ERRLOG("Invalid data buffer for Get Features - Host Identifier\n");
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
spdk_uuid_copy((struct spdk_uuid *)req->data, &ctrlr->hostid);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_get_features_reservation_notification_mask(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_ns *ns;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "get Features - Reservation Notificaton Mask\n");
if (cmd->nsid == 0xffffffffu) {
SPDK_ERRLOG("get Features - Invalid Namespace ID\n");
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid);
if (ns == NULL) {
SPDK_ERRLOG("Set Features - Invalid Namespace ID\n");
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
rsp->cdw0 = ns->mask;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_reservation_notification_mask(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_ns *ns;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Reservation Notificaton Mask\n");
if (cmd->nsid == 0xffffffffu) {
for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
ns->mask = cmd->cdw11;
}
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid);
if (ns == NULL) {
SPDK_ERRLOG("Set Features - Invalid Namespace ID\n");
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ns->mask = cmd->cdw11;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_get_features_reservation_persistence(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
struct spdk_nvmf_ns *ns;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Get Features - Reservation Persistence\n");
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid);
/* NSID with 0xffffffffu also included */
if (ns == NULL) {
SPDK_ERRLOG("Get Features - Invalid Namespace ID\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
response->cdw0 = ns->ptpl_activated;
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_SUCCESS;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_reservation_persistence(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
struct spdk_nvmf_ns *ns;
bool ptpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Reservation Persistence\n");
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid);
ptpl = cmd->cdw11_bits.feat_rsv_persistence.bits.ptpl;
if (cmd->nsid != 0xffffffffu && ns && ns->ptpl_file) {
ns->ptpl_activated = ptpl;
} else if (cmd->nsid == 0xffffffffu) {
for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns && ns->ptpl_file;
ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
ns->ptpl_activated = ptpl;
}
} else {
SPDK_ERRLOG("Set Features - Invalid Namespace ID or Reservation Configuration\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* TODO: Feature not changeable for now */
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_keep_alive_timer(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Keep Alive Timer (%u ms)\n", cmd->cdw11);
/*
* if attempts to disable keep alive by setting kato to 0h
* a status value of keep alive invalid shall be returned
*/
if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato == 0) {
rsp->status.sc = SPDK_NVME_SC_KEEP_ALIVE_INVALID;
} else if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato < MIN_KEEP_ALIVE_TIMEOUT_IN_MS) {
ctrlr->feat.keep_alive_timer.bits.kato = MIN_KEEP_ALIVE_TIMEOUT_IN_MS;
} else {
/* round up to milliseconds */
ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(
cmd->cdw11_bits.feat_keep_alive_timer.bits.kato,
KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) *
KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS;
}
/*
* if change the keep alive timeout value successfully
* update the keep alive poller.
*/
if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato != 0) {
if (ctrlr->keep_alive_poller != NULL) {
spdk_poller_unregister(&ctrlr->keep_alive_poller);
}
ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr,
ctrlr->feat.keep_alive_timer.bits.kato * 1000);
}
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Keep Alive Timer set to %u ms\n",
ctrlr->feat.keep_alive_timer.bits.kato);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_number_of_queues(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
uint32_t count;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Number of Queues, cdw11 0x%x\n",
req->cmd->nvme_cmd.cdw11);
count = spdk_bit_array_count_set(ctrlr->qpair_mask);
/* verify that the controller is ready to process commands */
if (count > 1) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Queue pairs already active!\n");
rsp->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
} else {
/*
* Ignore the value requested by the host -
* always return the pre-configured value based on max_qpairs_allowed.
*/
rsp->cdw0 = ctrlr->feat.number_of_queues.raw;
}
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_set_features_async_event_configuration(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Set Features - Async Event Configuration, cdw11 0x%08x\n",
cmd->cdw11);
ctrlr->feat.async_event_configuration.raw = cmd->cdw11;
ctrlr->feat.async_event_configuration.bits.reserved = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_async_event_request(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_subsystem_poll_group *sgroup;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Async Event Request\n");
/* Four asynchronous events are supported for now */
if (ctrlr->nr_aer_reqs >= NVMF_MAX_ASYNC_EVENTS) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "AERL exceeded\n");
rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
rsp->status.sc = SPDK_NVME_SC_ASYNC_EVENT_REQUEST_LIMIT_EXCEEDED;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (ctrlr->notice_event.bits.async_event_type ==
SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE) {
rsp->cdw0 = ctrlr->notice_event.raw;
ctrlr->notice_event.raw = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (ctrlr->reservation_event.bits.async_event_type ==
SPDK_NVME_ASYNC_EVENT_TYPE_IO) {
rsp->cdw0 = ctrlr->reservation_event.raw;
ctrlr->reservation_event.raw = 0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* AER cmd is an exception */
sgroup = &req->qpair->group->sgroups[ctrlr->subsys->id];
assert(sgroup != NULL);
sgroup->io_outstanding--;
ctrlr->aer_req[ctrlr->nr_aer_reqs++] = req;
return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
}
static void
nvmf_get_firmware_slot_log_page(void *buffer, uint64_t offset, uint32_t length)
{
struct spdk_nvme_firmware_page fw_page;
size_t copy_len;
memset(&fw_page, 0, sizeof(fw_page));
fw_page.afi.active_slot = 1;
fw_page.afi.next_reset_slot = 0;
spdk_strcpy_pad(fw_page.revision[0], FW_VERSION, sizeof(fw_page.revision[0]), ' ');
if (offset < sizeof(fw_page)) {
copy_len = spdk_min(sizeof(fw_page) - offset, length);
if (copy_len > 0) {
memcpy(buffer, (const char *)&fw_page + offset, copy_len);
}
}
}
static void
nvmf_get_ana_log_page(struct spdk_nvmf_ctrlr *ctrlr, void *data,
uint64_t offset, uint32_t length)
{
char *buf = data;
struct spdk_nvme_ana_page ana_hdr;
const size_t ana_desc_size = sizeof(struct spdk_nvme_ana_group_descriptor) +
sizeof(uint32_t);
char _ana_desc[ana_desc_size];
struct spdk_nvme_ana_group_descriptor *ana_desc;
size_t copy_len;
uint32_t num_ns = 0;
struct spdk_nvmf_ns *ns;
if (length == 0) {
return;
}
if (offset >= sizeof(ana_hdr)) {
offset -= sizeof(ana_hdr);
} else {
for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
num_ns++;
}
memset(&ana_hdr, 0, sizeof(ana_hdr));
ana_hdr.num_ana_group_desc = num_ns;
/* TODO: Support Change Count. */
ana_hdr.change_count = 0;
copy_len = spdk_min(sizeof(ana_hdr) - offset, length);
memcpy(buf, (const char *)&ana_hdr + offset, copy_len);
length -= copy_len;
buf += copy_len;
offset = 0;
}
if (length == 0) {
return;
}
ana_desc = (void *)_ana_desc;
for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL;
ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) {
if (offset >= ana_desc_size) {
offset -= ana_desc_size;
continue;
}
memset(ana_desc, 0, ana_desc_size);
ana_desc->ana_group_id = ns->nsid;
ana_desc->num_of_nsid = 1;
ana_desc->ana_state = SPDK_NVME_ANA_OPTIMIZED_STATE;
ana_desc->nsid[0] = ns->nsid;
/* TODO: Support Change Count. */
ana_desc->change_count = 0;
copy_len = spdk_min(ana_desc_size - offset, length);
memcpy(buf, (const char *)ana_desc + offset, copy_len);
length -= copy_len;
buf += copy_len;
offset = 0;
if (length == 0) {
return;
}
}
}
void
nvmf_ctrlr_ns_changed(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid)
{
uint16_t max_changes = SPDK_COUNTOF(ctrlr->changed_ns_list.ns_list);
uint16_t i;
bool found = false;
for (i = 0; i < ctrlr->changed_ns_list_count; i++) {
if (ctrlr->changed_ns_list.ns_list[i] == nsid) {
/* nsid is already in the list */
found = true;
break;
}
}
if (!found) {
if (ctrlr->changed_ns_list_count == max_changes) {
/* Out of space - set first entry to FFFFFFFFh and zero-fill the rest. */
ctrlr->changed_ns_list.ns_list[0] = 0xFFFFFFFFu;
for (i = 1; i < max_changes; i++) {
ctrlr->changed_ns_list.ns_list[i] = 0;
}
} else {
ctrlr->changed_ns_list.ns_list[ctrlr->changed_ns_list_count++] = nsid;
}
}
}
static void
nvmf_get_changed_ns_list_log_page(struct spdk_nvmf_ctrlr *ctrlr,
void *buffer, uint64_t offset, uint32_t length)
{
size_t copy_length;
if (offset < sizeof(ctrlr->changed_ns_list)) {
copy_length = spdk_min(length, sizeof(ctrlr->changed_ns_list) - offset);
if (copy_length) {
memcpy(buffer, (char *)&ctrlr->changed_ns_list + offset, copy_length);
}
}
/* Clear log page each time it is read */
ctrlr->changed_ns_list_count = 0;
memset(&ctrlr->changed_ns_list, 0, sizeof(ctrlr->changed_ns_list));
}
/* The structure can be modified if we provide support for other commands in future */
static const struct spdk_nvme_cmds_and_effect_log_page g_cmds_and_effect_log_page = {
.admin_cmds_supported = {
/* CSUPP, LBCC, NCC, NIC, CCC, CSE */
/* Get Log Page */
[SPDK_NVME_OPC_GET_LOG_PAGE] = {1, 0, 0, 0, 0, 0, 0, 0},
/* Identify */
[SPDK_NVME_OPC_IDENTIFY] = {1, 0, 0, 0, 0, 0, 0, 0},
/* Abort */
[SPDK_NVME_OPC_ABORT] = {1, 0, 0, 0, 0, 0, 0, 0},
/* Set Features */
[SPDK_NVME_OPC_SET_FEATURES] = {1, 0, 0, 0, 0, 0, 0, 0},
/* Get Features */
[SPDK_NVME_OPC_GET_FEATURES] = {1, 0, 0, 0, 0, 0, 0, 0},
/* Async Event Request */
[SPDK_NVME_OPC_ASYNC_EVENT_REQUEST] = {1, 0, 0, 0, 0, 0, 0, 0},
/* Keep Alive */
[SPDK_NVME_OPC_KEEP_ALIVE] = {1, 0, 0, 0, 0, 0, 0, 0},
},
.io_cmds_supported = {
/* FLUSH */
[SPDK_NVME_OPC_FLUSH] = {1, 1, 0, 0, 0, 0, 0, 0},
/* WRITE */
[SPDK_NVME_OPC_WRITE] = {1, 1, 0, 0, 0, 0, 0, 0},
/* READ */
[SPDK_NVME_OPC_READ] = {1, 0, 0, 0, 0, 0, 0, 0},
/* WRITE ZEROES */
[SPDK_NVME_OPC_WRITE_ZEROES] = {1, 1, 0, 0, 0, 0, 0, 0},
/* DATASET MANAGEMENT */
[SPDK_NVME_OPC_DATASET_MANAGEMENT] = {1, 1, 0, 0, 0, 0, 0, 0},
/* COMPARE */
[SPDK_NVME_OPC_COMPARE] = {1, 0, 0, 0, 0, 0, 0, 0},
},
};
static void
nvmf_get_cmds_and_effects_log_page(void *buffer,
uint64_t offset, uint32_t length)
{
uint32_t page_size = sizeof(struct spdk_nvme_cmds_and_effect_log_page);
size_t copy_len = 0;
size_t zero_len = length;
if (offset < page_size) {
copy_len = spdk_min(page_size - offset, length);
zero_len -= copy_len;
memcpy(buffer, (char *)(&g_cmds_and_effect_log_page) + offset, copy_len);
}
if (zero_len) {
memset((char *)buffer + copy_len, 0, zero_len);
}
}
static void
nvmf_get_reservation_notification_log_page(struct spdk_nvmf_ctrlr *ctrlr,
void *data, uint64_t offset, uint32_t length)
{
uint32_t unit_log_len, avail_log_len, next_pos, copy_len;
struct spdk_nvmf_reservation_log *log, *log_tmp;
uint8_t *buf = data;
unit_log_len = sizeof(struct spdk_nvme_reservation_notification_log);
/* No available log, return 1 zeroed log page */
if (!ctrlr->num_avail_log_pages) {
memset(buf, 0, spdk_min(length, unit_log_len));
return;
}
avail_log_len = ctrlr->num_avail_log_pages * unit_log_len;
if (offset >= avail_log_len) {
return;
}
next_pos = copy_len = 0;
TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) {
TAILQ_REMOVE(&ctrlr->log_head, log, link);
ctrlr->num_avail_log_pages--;
next_pos += unit_log_len;
if (next_pos > offset) {
copy_len = spdk_min(next_pos - offset, length);
memcpy(buf, &log->log, copy_len);
length -= copy_len;
offset += copy_len;
buf += copy_len;
}
free(log);
if (length == 0) {
break;
}
}
return;
}
static int
nvmf_ctrlr_get_log_page(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
uint64_t offset, len;
uint32_t numdl, numdu;
uint8_t lid;
if (req->data == NULL) {
SPDK_ERRLOG("get log command with no buffer\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
offset = (uint64_t)cmd->cdw12 | ((uint64_t)cmd->cdw13 << 32);
if (offset & 3) {
SPDK_ERRLOG("Invalid log page offset 0x%" PRIx64 "\n", offset);
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
numdl = cmd->cdw10_bits.get_log_page.numdl;
numdu = cmd->cdw11_bits.get_log_page.numdu;
len = ((numdu << 16) + numdl + (uint64_t)1) * 4;
if (len > req->length) {
SPDK_ERRLOG("Get log page: len (%" PRIu64 ") > buf size (%u)\n",
len, req->length);
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
lid = cmd->cdw10_bits.get_log_page.lid;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Get log page: LID=0x%02X offset=0x%" PRIx64 " len=0x%" PRIx64 "\n",
lid, offset, len);
if (subsystem->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) {
switch (lid) {
case SPDK_NVME_LOG_DISCOVERY:
nvmf_get_discovery_log_page(subsystem->tgt, ctrlr->hostnqn, req->iov, req->iovcnt, offset,
len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
default:
goto invalid_log_page;
}
} else {
switch (lid) {
case SPDK_NVME_LOG_ERROR:
case SPDK_NVME_LOG_HEALTH_INFORMATION:
/* TODO: actually fill out log page data */
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
case SPDK_NVME_LOG_FIRMWARE_SLOT:
nvmf_get_firmware_slot_log_page(req->data, offset, len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
case SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS:
nvmf_get_ana_log_page(ctrlr, req->data, offset, len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
case SPDK_NVME_LOG_COMMAND_EFFECTS_LOG:
nvmf_get_cmds_and_effects_log_page(req->data, offset, len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
case SPDK_NVME_LOG_CHANGED_NS_LIST:
nvmf_get_changed_ns_list_log_page(ctrlr, req->data, offset, len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
case SPDK_NVME_LOG_RESERVATION_NOTIFICATION:
nvmf_get_reservation_notification_log_page(ctrlr, req->data, offset, len);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
default:
goto invalid_log_page;
}
}
invalid_log_page:
SPDK_ERRLOG("Unsupported Get Log Page 0x%02X\n", lid);
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
int
spdk_nvmf_ctrlr_identify_ns(struct spdk_nvmf_ctrlr *ctrlr,
struct spdk_nvme_cmd *cmd,
struct spdk_nvme_cpl *rsp,
struct spdk_nvme_ns_data *nsdata)
{
struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
struct spdk_nvmf_ns *ns;
uint32_t max_num_blocks;
if (cmd->nsid == 0 || cmd->nsid > subsystem->max_nsid) {
SPDK_ERRLOG("Identify Namespace for invalid NSID %u\n", cmd->nsid);
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ns = _nvmf_subsystem_get_ns(subsystem, cmd->nsid);
if (ns == NULL || ns->bdev == NULL) {
/*
* Inactive namespaces should return a zero filled data structure.
* The data buffer is already zeroed by nvmf_ctrlr_process_admin_cmd(),
* so we can just return early here.
*/
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Identify Namespace for inactive NSID %u\n", cmd->nsid);
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_SUCCESS;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
nvmf_bdev_ctrlr_identify_ns(ns, nsdata, ctrlr->dif_insert_or_strip);
/* Due to bug in the Linux kernel NVMe driver we have to set noiob no larger than mdts */
max_num_blocks = ctrlr->admin_qpair->transport->opts.max_io_size /
(1U << nsdata->lbaf[nsdata->flbas.format].lbads);
if (nsdata->noiob > max_num_blocks) {
nsdata->noiob = max_num_blocks;
}
/* ANA group ID matches NSID. */
nsdata->anagrpid = ns->nsid;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static void
nvmf_ctrlr_populate_oacs(struct spdk_nvmf_ctrlr *ctrlr,
struct spdk_nvme_ctrlr_data *cdata)
{
cdata->oacs.virtualization_management =
g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_VIRTUALIZATION_MANAGEMENT].hdlr != NULL;
cdata->oacs.nvme_mi = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_SEND].hdlr != NULL
&& g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_RECEIVE].hdlr != NULL;
cdata->oacs.directives = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_SEND].hdlr != NULL
&& g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_RECEIVE].hdlr != NULL;
cdata->oacs.device_self_test =
g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DEVICE_SELF_TEST].hdlr != NULL;
cdata->oacs.ns_manage = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_MANAGEMENT].hdlr != NULL
&& g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_ATTACHMENT].hdlr != NULL;
cdata->oacs.firmware = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_IMAGE_DOWNLOAD].hdlr !=
NULL
&& g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_COMMIT].hdlr != NULL;
cdata->oacs.format =
g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FORMAT_NVM].hdlr != NULL;
cdata->oacs.security = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_SEND].hdlr != NULL
&& g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_RECEIVE].hdlr != NULL;
cdata->oacs.get_lba_status = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_GET_LBA_STATUS].hdlr !=
NULL;
}
int
spdk_nvmf_ctrlr_identify_ctrlr(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_ctrlr_data *cdata)
{
struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
struct spdk_nvmf_transport *transport = ctrlr->admin_qpair->transport;
/*
* Common fields for discovery and NVM subsystems
*/
spdk_strcpy_pad(cdata->fr, FW_VERSION, sizeof(cdata->fr), ' ');
assert((transport->opts.max_io_size % 4096) == 0);
cdata->mdts = spdk_u32log2(transport->opts.max_io_size / 4096);
cdata->cntlid = ctrlr->cntlid;
cdata->ver = ctrlr->vcprop.vs;
cdata->aerl = NVMF_MAX_ASYNC_EVENTS - 1;
cdata->lpa.edlp = 1;
cdata->elpe = 127;
cdata->maxcmd = transport->opts.max_queue_depth;
cdata->sgls = ctrlr->cdata.sgls;
cdata->fuses.compare_and_write = 1;
cdata->acwu = 1;
cdata->mnan = subsystem->max_nsid;
spdk_strcpy_pad(cdata->subnqn, subsystem->subnqn, sizeof(cdata->subnqn), '\0');
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ctrlr data: maxcmd 0x%x\n", cdata->maxcmd);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "sgls data: 0x%x\n", from_le32(&cdata->sgls));
/*
* NVM subsystem fields (reserved for discovery subsystems)
*/
if (subsystem->subtype == SPDK_NVMF_SUBTYPE_NVME) {
spdk_strcpy_pad(cdata->mn, spdk_nvmf_subsystem_get_mn(subsystem), sizeof(cdata->mn), ' ');
spdk_strcpy_pad(cdata->sn, spdk_nvmf_subsystem_get_sn(subsystem), sizeof(cdata->sn), ' ');
cdata->kas = ctrlr->cdata.kas;
cdata->rab = 6;
cdata->cmic.multi_port = 1;
cdata->cmic.multi_host = 1;
/* Asymmetric Namespace Access Reporting is supported. */
cdata->cmic.ana_reporting = 1;
cdata->oaes.ns_attribute_notices = 1;
cdata->ctratt.host_id_exhid_supported = 1;
/* TODO: Concurrent execution of multiple abort commands. */
cdata->acl = 0;
cdata->aerl = 0;
cdata->frmw.slot1_ro = 1;
cdata->frmw.num_slots = 1;
cdata->lpa.celp = 1; /* Command Effects log page supported */
cdata->sqes.min = 6;
cdata->sqes.max = 6;
cdata->cqes.min = 4;
cdata->cqes.max = 4;
cdata->nn = subsystem->max_nsid;
cdata->vwc.present = 1;
cdata->vwc.flush_broadcast = SPDK_NVME_FLUSH_BROADCAST_NOT_SUPPORTED;
cdata->nvmf_specific = ctrlr->cdata.nvmf_specific;
cdata->oncs.dsm = nvmf_ctrlr_dsm_supported(ctrlr);
cdata->oncs.write_zeroes = nvmf_ctrlr_write_zeroes_supported(ctrlr);
cdata->oncs.reservations = 1;
cdata->anacap.ana_optimized_state = 1;
/* ANAGRPID does not change while namespace is attached to controller */
cdata->anacap.no_change_anagrpid = 1;
cdata->anagrpmax = subsystem->max_nsid;
cdata->nanagrpid = subsystem->max_nsid;
nvmf_ctrlr_populate_oacs(ctrlr, cdata);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ext ctrlr data: ioccsz 0x%x\n",
cdata->nvmf_specific.ioccsz);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ext ctrlr data: iorcsz 0x%x\n",
cdata->nvmf_specific.iorcsz);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ext ctrlr data: icdoff 0x%x\n",
cdata->nvmf_specific.icdoff);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ext ctrlr data: ctrattr 0x%x\n",
*(uint8_t *)&cdata->nvmf_specific.ctrattr);
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "ext ctrlr data: msdbd 0x%x\n",
cdata->nvmf_specific.msdbd);
}
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_identify_active_ns_list(struct spdk_nvmf_subsystem *subsystem,
struct spdk_nvme_cmd *cmd,
struct spdk_nvme_cpl *rsp,
struct spdk_nvme_ns_list *ns_list)
{
struct spdk_nvmf_ns *ns;
uint32_t count = 0;
if (cmd->nsid >= 0xfffffffeUL) {
SPDK_ERRLOG("Identify Active Namespace List with invalid NSID %u\n", cmd->nsid);
rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
if (ns->opts.nsid <= cmd->nsid) {
continue;
}
ns_list->ns_list[count++] = ns->opts.nsid;
if (count == SPDK_COUNTOF(ns_list->ns_list)) {
break;
}
}
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static void
_add_ns_id_desc(void **buf_ptr, size_t *buf_remain,
enum spdk_nvme_nidt type,
const void *data, size_t data_size)
{
struct spdk_nvme_ns_id_desc *desc;
size_t desc_size = sizeof(*desc) + data_size;
/*
* These should never fail in practice, since all valid NS ID descriptors
* should be defined so that they fit in the available 4096-byte buffer.
*/
assert(data_size > 0);
assert(data_size <= UINT8_MAX);
assert(desc_size < *buf_remain);
if (data_size == 0 || data_size > UINT8_MAX || desc_size > *buf_remain) {
return;
}
desc = *buf_ptr;
desc->nidt = type;
desc->nidl = data_size;
memcpy(desc->nid, data, data_size);
*buf_ptr += desc_size;
*buf_remain -= desc_size;
}
static int
nvmf_ctrlr_identify_ns_id_descriptor_list(
struct spdk_nvmf_subsystem *subsystem,
struct spdk_nvme_cmd *cmd,
struct spdk_nvme_cpl *rsp,
void *id_desc_list, size_t id_desc_list_size)
{
struct spdk_nvmf_ns *ns;
size_t buf_remain = id_desc_list_size;
void *buf_ptr = id_desc_list;
ns = _nvmf_subsystem_get_ns(subsystem, cmd->nsid);
if (ns == NULL || ns->bdev == NULL) {
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
#define ADD_ID_DESC(type, data, size) \
do { \
if (!spdk_mem_all_zero(data, size)) { \
_add_ns_id_desc(&buf_ptr, &buf_remain, type, data, size); \
} \
} while (0)
ADD_ID_DESC(SPDK_NVME_NIDT_EUI64, ns->opts.eui64, sizeof(ns->opts.eui64));
ADD_ID_DESC(SPDK_NVME_NIDT_NGUID, ns->opts.nguid, sizeof(ns->opts.nguid));
ADD_ID_DESC(SPDK_NVME_NIDT_UUID, &ns->opts.uuid, sizeof(ns->opts.uuid));
/*
* The list is automatically 0-terminated because controller to host buffers in
* admin commands always get zeroed in nvmf_ctrlr_process_admin_cmd().
*/
#undef ADD_ID_DESC
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_identify(struct spdk_nvmf_request *req)
{
uint8_t cns;
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys;
if (req->data == NULL || req->length < 4096) {
SPDK_ERRLOG("identify command with invalid buffer\n");
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
cns = cmd->cdw10_bits.identify.cns;
if (subsystem->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY &&
cns != SPDK_NVME_IDENTIFY_CTRLR) {
/* Discovery controllers only support Identify Controller */
goto invalid_cns;
}
switch (cns) {
case SPDK_NVME_IDENTIFY_NS:
return spdk_nvmf_ctrlr_identify_ns(ctrlr, cmd, rsp, req->data);
case SPDK_NVME_IDENTIFY_CTRLR:
return spdk_nvmf_ctrlr_identify_ctrlr(ctrlr, req->data);
case SPDK_NVME_IDENTIFY_ACTIVE_NS_LIST:
return nvmf_ctrlr_identify_active_ns_list(subsystem, cmd, rsp, req->data);
case SPDK_NVME_IDENTIFY_NS_ID_DESCRIPTOR_LIST:
return nvmf_ctrlr_identify_ns_id_descriptor_list(subsystem, cmd, rsp, req->data, req->length);
default:
goto invalid_cns;
}
invalid_cns:
SPDK_ERRLOG("Identify command with unsupported CNS 0x%02x\n", cns);
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static bool
nvmf_qpair_abort_aer(struct spdk_nvmf_qpair *qpair, uint16_t cid)
{
struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
struct spdk_nvmf_request *req;
int i;
if (!nvmf_qpair_is_admin_queue(qpair)) {
return false;
}
for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
if (ctrlr->aer_req[i]->cmd->nvme_cmd.cid == cid) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Aborting AER request\n");
req = ctrlr->aer_req[i];
ctrlr->aer_req[i] = NULL;
ctrlr->nr_aer_reqs--;
/* Move the last req to the aborting position for making aer_reqs
* in continuous
*/
if (i < ctrlr->nr_aer_reqs) {
ctrlr->aer_req[i] = ctrlr->aer_req[ctrlr->nr_aer_reqs];
ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL;
}
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
_nvmf_request_complete(req);
return true;
}
}
return false;
}
static void
nvmf_qpair_abort_request(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_request *req)
{
uint16_t cid = req->cmd->nvme_cmd.cdw10_bits.abort.cid;
if (nvmf_qpair_abort_aer(qpair, cid)) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "abort ctrlr=%p sqid=%u cid=%u successful\n",
qpair->ctrlr, qpair->qid, cid);
req->rsp->nvme_cpl.cdw0 &= ~1U; /* Command successfully aborted */
spdk_nvmf_request_complete(req);
return;
}
nvmf_transport_qpair_abort_request(qpair, req);
}
static void
nvmf_ctrlr_abort_done(struct spdk_io_channel_iter *i, int status)
{
struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i);
if (status == 0) {
/* There was no qpair whose ID matches SQID of the abort command.
* Hence call _nvmf_request_complete() here.
*/
_nvmf_request_complete(req);
}
}
static void
nvmf_ctrlr_abort_on_pg(struct spdk_io_channel_iter *i)
{
struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i);
struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
struct spdk_nvmf_poll_group *group = spdk_io_channel_get_ctx(ch);
uint16_t sqid = req->cmd->nvme_cmd.cdw10_bits.abort.sqid;
struct spdk_nvmf_qpair *qpair;
TAILQ_FOREACH(qpair, &group->qpairs, link) {
if (qpair->ctrlr == req->qpair->ctrlr && qpair->qid == sqid) {
/* Found the qpair */
nvmf_qpair_abort_request(qpair, req);
/* Return -1 for the status so the iteration across threads stops. */
spdk_for_each_channel_continue(i, -1);
return;
}
}
spdk_for_each_channel_continue(i, 0);
}
static int
nvmf_ctrlr_abort(struct spdk_nvmf_request *req)
{
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
rsp->cdw0 = 1U; /* Command not aborted */
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_SUCCESS;
/* Send a message to each poll group, searching for this ctrlr, sqid, and command. */
spdk_for_each_channel(req->qpair->ctrlr->subsys->tgt,
nvmf_ctrlr_abort_on_pg,
req,
nvmf_ctrlr_abort_done
);
return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
}
int
nvmf_ctrlr_abort_request(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_request *req_to_abort = req->req_to_abort;
struct spdk_bdev *bdev;
struct spdk_bdev_desc *desc;
struct spdk_io_channel *ch;
int rc;
assert(req_to_abort != NULL);
if (g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr &&
nvmf_qpair_is_admin_queue(req_to_abort->qpair)) {
return g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr(req);
}
rc = spdk_nvmf_request_get_bdev(req_to_abort->cmd->nvme_cmd.nsid, req_to_abort,
&bdev, &desc, &ch);
if (rc != 0) {
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
return spdk_nvmf_bdev_ctrlr_abort_cmd(bdev, desc, ch, req, req_to_abort);
}
static int
get_features_generic(struct spdk_nvmf_request *req, uint32_t cdw0)
{
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
rsp->cdw0 = cdw0;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
static int
nvmf_ctrlr_get_features(struct spdk_nvmf_request *req)
{
uint8_t feature;
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
feature = cmd->cdw10_bits.get_features.fid;
switch (feature) {
case SPDK_NVME_FEAT_ARBITRATION:
return get_features_generic(req, ctrlr->feat.arbitration.raw);
case SPDK_NVME_FEAT_POWER_MANAGEMENT:
return get_features_generic(req, ctrlr->feat.power_management.raw);
case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD:
return nvmf_ctrlr_get_features_temperature_threshold(req);
case SPDK_NVME_FEAT_ERROR_RECOVERY:
return get_features_generic(req, ctrlr->feat.error_recovery.raw);
case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE:
return get_features_generic(req, ctrlr->feat.volatile_write_cache.raw);
case SPDK_NVME_FEAT_NUMBER_OF_QUEUES:
return get_features_generic(req, ctrlr->feat.number_of_queues.raw);
case SPDK_NVME_FEAT_WRITE_ATOMICITY:
return get_features_generic(req, ctrlr->feat.write_atomicity.raw);
case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
return get_features_generic(req, ctrlr->feat.async_event_configuration.raw);
case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw);
case SPDK_NVME_FEAT_HOST_IDENTIFIER:
return nvmf_ctrlr_get_features_host_identifier(req);
case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
return nvmf_ctrlr_get_features_reservation_notification_mask(req);
case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
return nvmf_ctrlr_get_features_reservation_persistence(req);
default:
SPDK_ERRLOG("Get Features command with unsupported feature ID 0x%02x\n", feature);
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
}
static int
nvmf_ctrlr_set_features(struct spdk_nvmf_request *req)
{
uint8_t feature, save;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
/*
* Features are not saveable by the controller as indicated by
* ONCS field of the Identify Controller data.
* */
save = cmd->cdw10_bits.set_features.sv;
if (save) {
response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE;
response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
feature = cmd->cdw10_bits.set_features.fid;
switch (feature) {
case SPDK_NVME_FEAT_ARBITRATION:
return nvmf_ctrlr_set_features_arbitration(req);
case SPDK_NVME_FEAT_POWER_MANAGEMENT:
return nvmf_ctrlr_set_features_power_management(req);
case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD:
return nvmf_ctrlr_set_features_temperature_threshold(req);
case SPDK_NVME_FEAT_ERROR_RECOVERY:
return nvmf_ctrlr_set_features_error_recovery(req);
case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE:
return nvmf_ctrlr_set_features_volatile_write_cache(req);
case SPDK_NVME_FEAT_NUMBER_OF_QUEUES:
return nvmf_ctrlr_set_features_number_of_queues(req);
case SPDK_NVME_FEAT_WRITE_ATOMICITY:
return nvmf_ctrlr_set_features_write_atomicity(req);
case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION:
return nvmf_ctrlr_set_features_async_event_configuration(req);
case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER:
return nvmf_ctrlr_set_features_keep_alive_timer(req);
case SPDK_NVME_FEAT_HOST_IDENTIFIER:
return nvmf_ctrlr_set_features_host_identifier(req);
case SPDK_NVME_FEAT_HOST_RESERVE_MASK:
return nvmf_ctrlr_set_features_reservation_notification_mask(req);
case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST:
return nvmf_ctrlr_set_features_reservation_persistence(req);
default:
SPDK_ERRLOG("Set Features command with unsupported feature ID 0x%02x\n", feature);
response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
}
static int
nvmf_ctrlr_keep_alive(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Keep Alive\n");
/*
* To handle keep alive just clear or reset the
* ctrlr based keep alive duration counter.
* When added, a separate timer based process
* will monitor if the time since last recorded
* keep alive has exceeded the max duration and
* take appropriate action.
*/
ctrlr->last_keep_alive_tick = spdk_get_ticks();
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
int
nvmf_ctrlr_process_admin_cmd(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
int rc;
if (ctrlr == NULL) {
SPDK_ERRLOG("Admin command sent before CONNECT\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (ctrlr->vcprop.cc.bits.en != 1) {
SPDK_ERRLOG("Admin command sent to disabled controller\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (req->data && spdk_nvme_opc_get_data_transfer(cmd->opc) == SPDK_NVME_DATA_CONTROLLER_TO_HOST) {
memset(req->data, 0, req->length);
}
if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) {
/* Discovery controllers only support Get Log Page, Identify and Keep Alive. */
switch (cmd->opc) {
case SPDK_NVME_OPC_IDENTIFY:
case SPDK_NVME_OPC_GET_LOG_PAGE:
case SPDK_NVME_OPC_KEEP_ALIVE:
break;
default:
goto invalid_opcode;
}
}
/* Call a custom adm cmd handler if set. Aborts are handled in a different path (see nvmf_passthru_admin_cmd) */
if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr && cmd->opc != SPDK_NVME_OPC_ABORT) {
rc = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr(req);
if (rc >= SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
/* The handler took care of this commmand */
return rc;
}
}
switch (cmd->opc) {
case SPDK_NVME_OPC_GET_LOG_PAGE:
return nvmf_ctrlr_get_log_page(req);
case SPDK_NVME_OPC_IDENTIFY:
return nvmf_ctrlr_identify(req);
case SPDK_NVME_OPC_ABORT:
return nvmf_ctrlr_abort(req);
case SPDK_NVME_OPC_GET_FEATURES:
return nvmf_ctrlr_get_features(req);
case SPDK_NVME_OPC_SET_FEATURES:
return nvmf_ctrlr_set_features(req);
case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST:
return nvmf_ctrlr_async_event_request(req);
case SPDK_NVME_OPC_KEEP_ALIVE:
return nvmf_ctrlr_keep_alive(req);
case SPDK_NVME_OPC_CREATE_IO_SQ:
case SPDK_NVME_OPC_CREATE_IO_CQ:
case SPDK_NVME_OPC_DELETE_IO_SQ:
case SPDK_NVME_OPC_DELETE_IO_CQ:
/* Create and Delete I/O CQ/SQ not allowed in NVMe-oF */
goto invalid_opcode;
default:
goto invalid_opcode;
}
invalid_opcode:
SPDK_ERRLOG("Unsupported admin opcode 0x%x\n", cmd->opc);
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
int
nvmf_ctrlr_process_fabrics_cmd(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_capsule_cmd *cap_hdr;
cap_hdr = &req->cmd->nvmf_cmd;
if (qpair->ctrlr == NULL) {
/* No ctrlr established yet; the only valid command is Connect */
if (cap_hdr->fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT) {
return nvmf_ctrlr_cmd_connect(req);
} else {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Got fctype 0x%x, expected Connect\n",
cap_hdr->fctype);
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
} else if (nvmf_qpair_is_admin_queue(qpair)) {
/*
* Controller session is established, and this is an admin queue.
* Disallow Connect and allow other fabrics commands.
*/
switch (cap_hdr->fctype) {
case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_SET:
return nvmf_property_set(req);
case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_GET:
return nvmf_property_get(req);
default:
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "unknown fctype 0x%02x\n",
cap_hdr->fctype);
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
} else {
/* Controller session is established, and this is an I/O queue */
/* For now, no I/O-specific Fabrics commands are implemented (other than Connect) */
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Unexpected I/O fctype 0x%x\n", cap_hdr->fctype);
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
}
static inline int
nvmf_ctrlr_async_event_notification(struct spdk_nvmf_ctrlr *ctrlr,
union spdk_nvme_async_event_completion *event)
{
struct spdk_nvmf_request *req;
struct spdk_nvme_cpl *rsp;
assert(ctrlr->nr_aer_reqs > 0);
req = ctrlr->aer_req[--ctrlr->nr_aer_reqs];
rsp = &req->rsp->nvme_cpl;
rsp->cdw0 = event->raw;
_nvmf_request_complete(req);
ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL;
return 0;
}
int
nvmf_ctrlr_async_event_ns_notice(struct spdk_nvmf_ctrlr *ctrlr)
{
union spdk_nvme_async_event_completion event = {0};
/* Users may disable the event notification */
if (!ctrlr->feat.async_event_configuration.bits.ns_attr_notice) {
return 0;
}
event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE;
event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGED;
event.bits.log_page_identifier = SPDK_NVME_LOG_CHANGED_NS_LIST;
/* If there is no outstanding AER request, queue the event. Then
* if an AER is later submitted, this event can be sent as a
* response.
*/
if (ctrlr->nr_aer_reqs == 0) {
if (ctrlr->notice_event.bits.async_event_type ==
SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE) {
return 0;
}
ctrlr->notice_event.raw = event.raw;
return 0;
}
return nvmf_ctrlr_async_event_notification(ctrlr, &event);
}
void
nvmf_ctrlr_async_event_reservation_notification(struct spdk_nvmf_ctrlr *ctrlr)
{
union spdk_nvme_async_event_completion event = {0};
if (!ctrlr->num_avail_log_pages) {
return;
}
event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_IO;
event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL;
event.bits.log_page_identifier = SPDK_NVME_LOG_RESERVATION_NOTIFICATION;
/* If there is no outstanding AER request, queue the event. Then
* if an AER is later submitted, this event can be sent as a
* response.
*/
if (ctrlr->nr_aer_reqs == 0) {
if (ctrlr->reservation_event.bits.async_event_type ==
SPDK_NVME_ASYNC_EVENT_TYPE_IO) {
return;
}
ctrlr->reservation_event.raw = event.raw;
return;
}
nvmf_ctrlr_async_event_notification(ctrlr, &event);
}
void
nvmf_qpair_free_aer(struct spdk_nvmf_qpair *qpair)
{
struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
int i;
if (!nvmf_qpair_is_admin_queue(qpair)) {
return;
}
for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
spdk_nvmf_request_free(ctrlr->aer_req[i]);
ctrlr->aer_req[i] = NULL;
}
ctrlr->nr_aer_reqs = 0;
}
void
nvmf_ctrlr_abort_aer(struct spdk_nvmf_ctrlr *ctrlr)
{
struct spdk_nvmf_request *req;
int i;
for (i = 0; i < ctrlr->nr_aer_reqs; i++) {
req = ctrlr->aer_req[i];
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST;
_nvmf_request_complete(req);
ctrlr->aer_req[i] = NULL;
}
ctrlr->nr_aer_reqs = 0;
}
static void
_nvmf_ctrlr_add_reservation_log(void *ctx)
{
struct spdk_nvmf_reservation_log *log = (struct spdk_nvmf_reservation_log *)ctx;
struct spdk_nvmf_ctrlr *ctrlr = log->ctrlr;
ctrlr->log_page_count++;
/* Maximum number of queued log pages is 255 */
if (ctrlr->num_avail_log_pages == 0xff) {
struct spdk_nvmf_reservation_log *entry;
entry = TAILQ_LAST(&ctrlr->log_head, log_page_head);
entry->log.log_page_count = ctrlr->log_page_count;
free(log);
return;
}
log->log.log_page_count = ctrlr->log_page_count;
log->log.num_avail_log_pages = ctrlr->num_avail_log_pages++;
TAILQ_INSERT_TAIL(&ctrlr->log_head, log, link);
nvmf_ctrlr_async_event_reservation_notification(ctrlr);
}
void
nvmf_ctrlr_reservation_notice_log(struct spdk_nvmf_ctrlr *ctrlr,
struct spdk_nvmf_ns *ns,
enum spdk_nvme_reservation_notification_log_page_type type)
{
struct spdk_nvmf_reservation_log *log;
switch (type) {
case SPDK_NVME_RESERVATION_LOG_PAGE_EMPTY:
return;
case SPDK_NVME_REGISTRATION_PREEMPTED:
if (ns->mask & SPDK_NVME_REGISTRATION_PREEMPTED_MASK) {
return;
}
break;
case SPDK_NVME_RESERVATION_RELEASED:
if (ns->mask & SPDK_NVME_RESERVATION_RELEASED_MASK) {
return;
}
break;
case SPDK_NVME_RESERVATION_PREEMPTED:
if (ns->mask & SPDK_NVME_RESERVATION_PREEMPTED_MASK) {
return;
}
break;
default:
return;
}
log = calloc(1, sizeof(*log));
if (!log) {
SPDK_ERRLOG("Alloc log page failed, ignore the log\n");
return;
}
log->ctrlr = ctrlr;
log->log.type = type;
log->log.nsid = ns->nsid;
spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_reservation_log, log);
}
/* Check from subsystem poll group's namespace information data structure */
static bool
nvmf_ns_info_ctrlr_is_registrant(struct spdk_nvmf_subsystem_pg_ns_info *ns_info,
struct spdk_nvmf_ctrlr *ctrlr)
{
uint32_t i;
for (i = 0; i < SPDK_NVMF_MAX_NUM_REGISTRANTS; i++) {
if (!spdk_uuid_compare(&ns_info->reg_hostid[i], &ctrlr->hostid)) {
return true;
}
}
return false;
}
/*
* Check the NVMe command is permitted or not for current controller(Host).
*/
static int
nvmf_ns_reservation_request_check(struct spdk_nvmf_subsystem_pg_ns_info *ns_info,
struct spdk_nvmf_ctrlr *ctrlr,
struct spdk_nvmf_request *req)
{
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
enum spdk_nvme_reservation_type rtype = ns_info->rtype;
uint8_t status = SPDK_NVME_SC_SUCCESS;
uint8_t racqa;
bool is_registrant;
/* No valid reservation */
if (!rtype) {
return 0;
}
is_registrant = nvmf_ns_info_ctrlr_is_registrant(ns_info, ctrlr);
/* All registrants type and current ctrlr is a valid registrant */
if ((rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE_ALL_REGS ||
rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && is_registrant) {
return 0;
} else if (!spdk_uuid_compare(&ns_info->holder_id, &ctrlr->hostid)) {
return 0;
}
/* Non-holder for current controller */
switch (cmd->opc) {
case SPDK_NVME_OPC_READ:
case SPDK_NVME_OPC_COMPARE:
if (rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
goto exit;
}
if ((rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_REG_ONLY ||
rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && !is_registrant) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
}
break;
case SPDK_NVME_OPC_FLUSH:
case SPDK_NVME_OPC_WRITE:
case SPDK_NVME_OPC_WRITE_UNCORRECTABLE:
case SPDK_NVME_OPC_WRITE_ZEROES:
case SPDK_NVME_OPC_DATASET_MANAGEMENT:
if (rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE ||
rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
goto exit;
}
if (!is_registrant) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
}
break;
case SPDK_NVME_OPC_RESERVATION_ACQUIRE:
racqa = cmd->cdw10_bits.resv_acquire.racqa;
if (racqa == SPDK_NVME_RESERVE_ACQUIRE) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
goto exit;
}
if (!is_registrant) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
}
break;
case SPDK_NVME_OPC_RESERVATION_RELEASE:
if (!is_registrant) {
status = SPDK_NVME_SC_RESERVATION_CONFLICT;
}
break;
default:
break;
}
exit:
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = status;
if (status == SPDK_NVME_SC_RESERVATION_CONFLICT) {
return -EPERM;
}
return 0;
}
static int
nvmf_ctrlr_process_io_fused_cmd(struct spdk_nvmf_request *req, struct spdk_bdev *bdev,
struct spdk_bdev_desc *desc, struct spdk_io_channel *ch)
{
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_request *first_fused_req = req->qpair->first_fused_req;
int rc;
if (cmd->fuse == SPDK_NVME_CMD_FUSE_FIRST) {
/* first fused operation (should be compare) */
if (first_fused_req != NULL) {
struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
SPDK_ERRLOG("Wrong sequence of fused operations\n");
/* abort req->qpair->first_fused_request and continue with new fused command */
fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
_nvmf_request_complete(first_fused_req);
} else if (cmd->opc != SPDK_NVME_OPC_COMPARE) {
SPDK_ERRLOG("Wrong op code of fused operations\n");
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
req->qpair->first_fused_req = req;
return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
} else if (cmd->fuse == SPDK_NVME_CMD_FUSE_SECOND) {
/* second fused operation (should be write) */
if (first_fused_req == NULL) {
SPDK_ERRLOG("Wrong sequence of fused operations\n");
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
} else if (cmd->opc != SPDK_NVME_OPC_WRITE) {
struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
SPDK_ERRLOG("Wrong op code of fused operations\n");
/* abort req->qpair->first_fused_request and fail current command */
fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
_nvmf_request_complete(first_fused_req);
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE;
req->qpair->first_fused_req = NULL;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* save request of first command to generate response later */
req->first_fused_req = first_fused_req;
req->qpair->first_fused_req = NULL;
} else {
SPDK_ERRLOG("Invalid fused command fuse field.\n");
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
rc = nvmf_bdev_ctrlr_compare_and_write_cmd(bdev, desc, ch, req->first_fused_req, req);
if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
if (spdk_nvme_cpl_is_error(rsp)) {
struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl;
fused_response->status = rsp->status;
rsp->status.sct = SPDK_NVME_SCT_GENERIC;
rsp->status.sc = SPDK_NVME_SC_ABORTED_FAILED_FUSED;
/* Complete first of fused commands. Second will be completed by upper layer */
_nvmf_request_complete(first_fused_req);
req->first_fused_req = NULL;
}
}
return rc;
}
int
nvmf_ctrlr_process_io_cmd(struct spdk_nvmf_request *req)
{
uint32_t nsid;
struct spdk_nvmf_ns *ns;
struct spdk_bdev *bdev;
struct spdk_bdev_desc *desc;
struct spdk_io_channel *ch;
struct spdk_nvmf_poll_group *group = req->qpair->group;
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
/* pre-set response details for this command */
response->status.sc = SPDK_NVME_SC_SUCCESS;
nsid = cmd->nsid;
if (spdk_unlikely(ctrlr == NULL)) {
SPDK_ERRLOG("I/O command sent before CONNECT\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
if (spdk_unlikely(ctrlr->vcprop.cc.bits.en != 1)) {
SPDK_ERRLOG("I/O command sent to disabled controller\n");
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, nsid);
if (ns == NULL || ns->bdev == NULL) {
SPDK_ERRLOG("Unsuccessful query for nsid %u\n", cmd->nsid);
response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
response->status.dnr = 1;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
/* scan-build falsely reporting dereference of null pointer */
assert(group != NULL && group->sgroups != NULL);
ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];
if (nvmf_ns_reservation_request_check(ns_info, ctrlr, req)) {
SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Reservation Conflict for nsid %u, opcode %u\n",
cmd->nsid, cmd->opc);
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
bdev = ns->bdev;
desc = ns->desc;
ch = ns_info->channel;
if (spdk_unlikely(cmd->fuse & SPDK_NVME_CMD_FUSE_MASK)) {
return nvmf_ctrlr_process_io_fused_cmd(req, bdev, desc, ch);
} else if (spdk_unlikely(req->qpair->first_fused_req != NULL)) {
struct spdk_nvme_cpl *fused_response = &req->qpair->first_fused_req->rsp->nvme_cpl;
SPDK_ERRLOG("Expected second of fused commands - failing first of fused commands\n");
/* abort req->qpair->first_fused_request and continue with new command */
fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED;
fused_response->status.sct = SPDK_NVME_SCT_GENERIC;
_nvmf_request_complete(req->qpair->first_fused_req);
req->qpair->first_fused_req = NULL;
}
switch (cmd->opc) {
case SPDK_NVME_OPC_READ:
return nvmf_bdev_ctrlr_read_cmd(bdev, desc, ch, req);
case SPDK_NVME_OPC_WRITE:
return nvmf_bdev_ctrlr_write_cmd(bdev, desc, ch, req);
case SPDK_NVME_OPC_COMPARE:
return nvmf_bdev_ctrlr_compare_cmd(bdev, desc, ch, req);
case SPDK_NVME_OPC_WRITE_ZEROES:
return nvmf_bdev_ctrlr_write_zeroes_cmd(bdev, desc, ch, req);
case SPDK_NVME_OPC_FLUSH:
return nvmf_bdev_ctrlr_flush_cmd(bdev, desc, ch, req);
case SPDK_NVME_OPC_DATASET_MANAGEMENT:
return nvmf_bdev_ctrlr_dsm_cmd(bdev, desc, ch, req);
case SPDK_NVME_OPC_RESERVATION_REGISTER:
case SPDK_NVME_OPC_RESERVATION_ACQUIRE:
case SPDK_NVME_OPC_RESERVATION_RELEASE:
case SPDK_NVME_OPC_RESERVATION_REPORT:
spdk_thread_send_msg(ctrlr->subsys->thread, nvmf_ns_reservation_request, req);
return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
default:
return nvmf_bdev_ctrlr_nvme_passthru_io(bdev, desc, ch, req);
}
}
static void
nvmf_qpair_request_cleanup(struct spdk_nvmf_qpair *qpair)
{
if (qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING) {
assert(qpair->state_cb != NULL);
if (TAILQ_EMPTY(&qpair->outstanding)) {
qpair->state_cb(qpair->state_cb_arg, 0);
}
}
}
int
spdk_nvmf_request_free(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
TAILQ_REMOVE(&qpair->outstanding, req, link);
if (nvmf_transport_req_free(req)) {
SPDK_ERRLOG("Unable to free transport level request resources.\n");
}
nvmf_qpair_request_cleanup(qpair);
return 0;
}
static void
_nvmf_request_complete(void *ctx)
{
struct spdk_nvmf_request *req = ctx;
struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
struct spdk_nvmf_qpair *qpair;
struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
bool is_aer = false;
rsp->sqid = 0;
rsp->status.p = 0;
rsp->cid = req->cmd->nvme_cmd.cid;
qpair = req->qpair;
if (qpair->ctrlr) {
sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
assert(sgroup != NULL);
is_aer = req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST;
} else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) {
sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
}
if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) {
spdk_nvme_print_completion(qpair->qid, rsp);
}
TAILQ_REMOVE(&qpair->outstanding, req, link);
if (nvmf_transport_req_complete(req)) {
SPDK_ERRLOG("Transport request completion error!\n");
}
/* AER cmd is an exception */
if (sgroup && !is_aer) {
assert(sgroup->io_outstanding > 0);
sgroup->io_outstanding--;
if (sgroup->state == SPDK_NVMF_SUBSYSTEM_PAUSING &&
sgroup->io_outstanding == 0) {
sgroup->state = SPDK_NVMF_SUBSYSTEM_PAUSED;
sgroup->cb_fn(sgroup->cb_arg, 0);
}
}
nvmf_qpair_request_cleanup(qpair);
}
int
spdk_nvmf_request_complete(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
if (spdk_likely(qpair->group->thread == spdk_get_thread())) {
_nvmf_request_complete(req);
} else {
spdk_thread_send_msg(qpair->group->thread,
_nvmf_request_complete, req);
}
return 0;
}
static void
_nvmf_request_exec(struct spdk_nvmf_request *req,
struct spdk_nvmf_subsystem_poll_group *sgroup)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
enum spdk_nvmf_request_exec_status status;
if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) {
spdk_nvme_print_command(qpair->qid, &req->cmd->nvme_cmd);
}
if (sgroup) {
sgroup->io_outstanding++;
}
/* Place the request on the outstanding list so we can keep track of it */
TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
status = nvmf_ctrlr_process_fabrics_cmd(req);
} else if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) {
status = nvmf_ctrlr_process_admin_cmd(req);
} else {
status = nvmf_ctrlr_process_io_cmd(req);
}
if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
_nvmf_request_complete(req);
}
}
void
spdk_nvmf_request_exec_fabrics(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
assert(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC);
if (qpair->ctrlr) {
sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
assert(sgroup != NULL);
} else {
sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
}
_nvmf_request_exec(req, sgroup);
}
void
spdk_nvmf_request_exec(struct spdk_nvmf_request *req)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_subsystem_poll_group *sgroup = NULL;
if (qpair->ctrlr) {
sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id];
assert(sgroup != NULL);
} else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) {
sgroup = nvmf_subsystem_pg_from_connect_cmd(req);
}
if (qpair->state != SPDK_NVMF_QPAIR_ACTIVE) {
req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR;
/* Place the request on the outstanding list so we can keep track of it */
TAILQ_INSERT_TAIL(&qpair->outstanding, req, link);
/* Still increment io_outstanding because request_complete decrements it */
if (sgroup != NULL) {
sgroup->io_outstanding++;
}
_nvmf_request_complete(req);
return;
}
/* Check if the subsystem is paused (if there is a subsystem) */
if (sgroup != NULL) {
if (sgroup->state != SPDK_NVMF_SUBSYSTEM_ACTIVE) {
/* The subsystem is not currently active. Queue this request. */
TAILQ_INSERT_TAIL(&sgroup->queued, req, link);
return;
}
}
_nvmf_request_exec(req, sgroup);
}
static bool
nvmf_ctrlr_get_dif_ctx(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_cmd *cmd,
struct spdk_dif_ctx *dif_ctx)
{
struct spdk_nvmf_ns *ns;
struct spdk_bdev *bdev;
if (ctrlr == NULL || cmd == NULL) {
return false;
}
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid);
if (ns == NULL || ns->bdev == NULL) {
return false;
}
bdev = ns->bdev;
switch (cmd->opc) {
case SPDK_NVME_OPC_READ:
case SPDK_NVME_OPC_WRITE:
case SPDK_NVME_OPC_COMPARE:
return nvmf_bdev_ctrlr_get_dif_ctx(bdev, cmd, dif_ctx);
default:
break;
}
return false;
}
bool
spdk_nvmf_request_get_dif_ctx(struct spdk_nvmf_request *req, struct spdk_dif_ctx *dif_ctx)
{
struct spdk_nvmf_qpair *qpair = req->qpair;
struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr;
if (spdk_likely(ctrlr == NULL || !ctrlr->dif_insert_or_strip)) {
return false;
}
if (spdk_unlikely(qpair->state != SPDK_NVMF_QPAIR_ACTIVE)) {
return false;
}
if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) {
return false;
}
if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) {
return false;
}
return nvmf_ctrlr_get_dif_ctx(ctrlr, &req->cmd->nvme_cmd, dif_ctx);
}
void
spdk_nvmf_set_custom_admin_cmd_hdlr(uint8_t opc, spdk_nvmf_custom_cmd_hdlr hdlr)
{
g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = hdlr;
}
static int
nvmf_passthru_admin_cmd(struct spdk_nvmf_request *req)
{
struct spdk_bdev *bdev;
struct spdk_bdev_desc *desc;
struct spdk_io_channel *ch;
struct spdk_nvme_cmd *cmd = spdk_nvmf_request_get_cmd(req);
struct spdk_nvme_cpl *response = spdk_nvmf_request_get_response(req);
uint32_t bdev_nsid;
int rc;
if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid == 0) {
bdev_nsid = cmd->nsid;
} else {
bdev_nsid = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid;
}
rc = spdk_nvmf_request_get_bdev(bdev_nsid, req, &bdev, &desc, &ch);
if (rc) {
response->status.sct = SPDK_NVME_SCT_GENERIC;
response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT;
return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
}
return spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(bdev, desc, ch, req, NULL);
}
void
spdk_nvmf_set_passthru_admin_cmd(uint8_t opc, uint32_t forward_nsid)
{
g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = nvmf_passthru_admin_cmd;
g_nvmf_custom_admin_cmd_hdlrs[opc].nsid = forward_nsid;
}
int
spdk_nvmf_request_get_bdev(uint32_t nsid, struct spdk_nvmf_request *req,
struct spdk_bdev **bdev, struct spdk_bdev_desc **desc, struct spdk_io_channel **ch)
{
struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr;
struct spdk_nvmf_ns *ns;
struct spdk_nvmf_poll_group *group = req->qpair->group;
struct spdk_nvmf_subsystem_pg_ns_info *ns_info;
*bdev = NULL;
*desc = NULL;
*ch = NULL;
ns = _nvmf_subsystem_get_ns(ctrlr->subsys, nsid);
if (ns == NULL || ns->bdev == NULL) {
return -EINVAL;
}
assert(group != NULL && group->sgroups != NULL);
ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1];
*bdev = ns->bdev;
*desc = ns->desc;
*ch = ns_info->channel;
return 0;
}
struct spdk_nvmf_ctrlr *spdk_nvmf_request_get_ctrlr(struct spdk_nvmf_request *req)
{
return req->qpair->ctrlr;
}
struct spdk_nvme_cmd *spdk_nvmf_request_get_cmd(struct spdk_nvmf_request *req)
{
return &req->cmd->nvme_cmd;
}
struct spdk_nvme_cpl *spdk_nvmf_request_get_response(struct spdk_nvmf_request *req)
{
return &req->rsp->nvme_cpl;
}
struct spdk_nvmf_subsystem *spdk_nvmf_request_get_subsystem(struct spdk_nvmf_request *req)
{
return req->qpair->ctrlr->subsys;
}
void spdk_nvmf_request_get_data(struct spdk_nvmf_request *req, void **data, uint32_t *length)
{
*data = req->data;
*length = req->length;
}
struct spdk_nvmf_subsystem *spdk_nvmf_ctrlr_get_subsystem(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->subsys;
}
uint16_t spdk_nvmf_ctrlr_get_id(struct spdk_nvmf_ctrlr *ctrlr)
{
return ctrlr->cntlid;
}
struct spdk_nvmf_request *spdk_nvmf_request_get_req_to_abort(struct spdk_nvmf_request *req)
{
return req->req_to_abort;
}
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