summaryrefslogtreecommitdiffstats
path: root/src/spdk/lib/nvme/nvme_ns_cmd.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/spdk/lib/nvme/nvme_ns_cmd.c')
-rw-r--r--src/spdk/lib/nvme/nvme_ns_cmd.c1074
1 files changed, 1074 insertions, 0 deletions
diff --git a/src/spdk/lib/nvme/nvme_ns_cmd.c b/src/spdk/lib/nvme/nvme_ns_cmd.c
new file mode 100644
index 000000000..eaa825fa8
--- /dev/null
+++ b/src/spdk/lib/nvme/nvme_ns_cmd.c
@@ -0,0 +1,1074 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) Intel Corporation.
+ * 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 "nvme_internal.h"
+
+static inline struct nvme_request *_nvme_ns_cmd_rw(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ const struct nvme_payload *payload, uint32_t payload_offset, uint32_t md_offset,
+ uint64_t lba, uint32_t lba_count, spdk_nvme_cmd_cb cb_fn,
+ void *cb_arg, uint32_t opc, uint32_t io_flags,
+ uint16_t apptag_mask, uint16_t apptag, bool check_sgl);
+
+
+static bool
+nvme_ns_check_request_length(uint32_t lba_count, uint32_t sectors_per_max_io,
+ uint32_t sectors_per_stripe, uint32_t qdepth)
+{
+ uint32_t child_per_io = UINT32_MAX;
+
+ /* After a namespace is destroyed(e.g. hotplug), all the fields associated with the
+ * namespace will be cleared to zero, the function will return TRUE for this case,
+ * and -EINVAL will be returned to caller.
+ */
+ if (sectors_per_stripe > 0) {
+ child_per_io = (lba_count + sectors_per_stripe - 1) / sectors_per_stripe;
+ } else if (sectors_per_max_io > 0) {
+ child_per_io = (lba_count + sectors_per_max_io - 1) / sectors_per_max_io;
+ }
+
+ SPDK_DEBUGLOG(SPDK_LOG_NVME, "checking maximum i/o length %d\n", child_per_io);
+
+ return child_per_io >= qdepth;
+}
+
+static struct nvme_request *
+_nvme_add_child_request(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ const struct nvme_payload *payload,
+ uint32_t payload_offset, uint32_t md_offset,
+ uint64_t lba, uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t opc,
+ uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag,
+ struct nvme_request *parent, bool check_sgl)
+{
+ struct nvme_request *child;
+
+ child = _nvme_ns_cmd_rw(ns, qpair, payload, payload_offset, md_offset, lba, lba_count, cb_fn,
+ cb_arg, opc, io_flags, apptag_mask, apptag, check_sgl);
+ if (child == NULL) {
+ nvme_request_free_children(parent);
+ nvme_free_request(parent);
+ return NULL;
+ }
+
+ nvme_request_add_child(parent, child);
+ return child;
+}
+
+static struct nvme_request *
+_nvme_ns_cmd_split_request(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ const struct nvme_payload *payload,
+ uint32_t payload_offset, uint32_t md_offset,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t opc,
+ uint32_t io_flags, struct nvme_request *req,
+ uint32_t sectors_per_max_io, uint32_t sector_mask,
+ uint16_t apptag_mask, uint16_t apptag)
+{
+ uint32_t sector_size;
+ uint32_t md_size = ns->md_size;
+ uint32_t remaining_lba_count = lba_count;
+ struct nvme_request *child;
+
+ sector_size = ns->extended_lba_size;
+
+ if ((io_flags & SPDK_NVME_IO_FLAGS_PRACT) &&
+ (ns->flags & SPDK_NVME_NS_EXTENDED_LBA_SUPPORTED) &&
+ (ns->flags & SPDK_NVME_NS_DPS_PI_SUPPORTED) &&
+ (md_size == 8)) {
+ sector_size -= 8;
+ }
+
+ while (remaining_lba_count > 0) {
+ lba_count = sectors_per_max_io - (lba & sector_mask);
+ lba_count = spdk_min(remaining_lba_count, lba_count);
+
+ child = _nvme_add_child_request(ns, qpair, payload, payload_offset, md_offset,
+ lba, lba_count, cb_fn, cb_arg, opc,
+ io_flags, apptag_mask, apptag, req, true);
+ if (child == NULL) {
+ return NULL;
+ }
+
+ remaining_lba_count -= lba_count;
+ lba += lba_count;
+ payload_offset += lba_count * sector_size;
+ md_offset += lba_count * md_size;
+ }
+
+ return req;
+}
+
+static inline bool
+_is_io_flags_valid(uint32_t io_flags)
+{
+ if (io_flags & ~SPDK_NVME_IO_FLAGS_VALID_MASK) {
+ /* Invalid io_flags */
+ SPDK_ERRLOG("Invalid io_flags 0x%x\n", io_flags);
+ return false;
+ }
+
+ return true;
+}
+
+static void
+_nvme_ns_cmd_setup_request(struct spdk_nvme_ns *ns, struct nvme_request *req,
+ uint32_t opc, uint64_t lba, uint32_t lba_count,
+ uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag)
+{
+ struct spdk_nvme_cmd *cmd;
+
+ assert(_is_io_flags_valid(io_flags));
+
+ cmd = &req->cmd;
+ cmd->opc = opc;
+ cmd->nsid = ns->id;
+
+ *(uint64_t *)&cmd->cdw10 = lba;
+
+ if (ns->flags & SPDK_NVME_NS_DPS_PI_SUPPORTED) {
+ switch (ns->pi_type) {
+ case SPDK_NVME_FMT_NVM_PROTECTION_TYPE1:
+ case SPDK_NVME_FMT_NVM_PROTECTION_TYPE2:
+ cmd->cdw14 = (uint32_t)lba;
+ break;
+ }
+ }
+
+ cmd->fuse = (io_flags & SPDK_NVME_IO_FLAGS_FUSE_MASK);
+
+ cmd->cdw12 = lba_count - 1;
+ cmd->cdw12 |= (io_flags & SPDK_NVME_IO_FLAGS_CDW12_MASK);
+
+ cmd->cdw15 = apptag_mask;
+ cmd->cdw15 = (cmd->cdw15 << 16 | apptag);
+}
+
+static struct nvme_request *
+_nvme_ns_cmd_split_request_prp(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ const struct nvme_payload *payload,
+ uint32_t payload_offset, uint32_t md_offset,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t opc,
+ uint32_t io_flags, struct nvme_request *req,
+ uint16_t apptag_mask, uint16_t apptag)
+{
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn = req->payload.reset_sgl_fn;
+ spdk_nvme_req_next_sge_cb next_sge_fn = req->payload.next_sge_fn;
+ void *sgl_cb_arg = req->payload.contig_or_cb_arg;
+ bool start_valid, end_valid, last_sge, child_equals_parent;
+ uint64_t child_lba = lba;
+ uint32_t req_current_length = 0;
+ uint32_t child_length = 0;
+ uint32_t sge_length;
+ uint32_t page_size = qpair->ctrlr->page_size;
+ uintptr_t address;
+
+ reset_sgl_fn(sgl_cb_arg, payload_offset);
+ next_sge_fn(sgl_cb_arg, (void **)&address, &sge_length);
+ while (req_current_length < req->payload_size) {
+
+ if (sge_length == 0) {
+ continue;
+ } else if (req_current_length + sge_length > req->payload_size) {
+ sge_length = req->payload_size - req_current_length;
+ }
+
+ /*
+ * The start of the SGE is invalid if the start address is not page aligned,
+ * unless it is the first SGE in the child request.
+ */
+ start_valid = child_length == 0 || _is_page_aligned(address, page_size);
+
+ /* Boolean for whether this is the last SGE in the parent request. */
+ last_sge = (req_current_length + sge_length == req->payload_size);
+
+ /*
+ * The end of the SGE is invalid if the end address is not page aligned,
+ * unless it is the last SGE in the parent request.
+ */
+ end_valid = last_sge || _is_page_aligned(address + sge_length, page_size);
+
+ /*
+ * This child request equals the parent request, meaning that no splitting
+ * was required for the parent request (the one passed into this function).
+ * In this case, we do not create a child request at all - we just send
+ * the original request as a single request at the end of this function.
+ */
+ child_equals_parent = (child_length + sge_length == req->payload_size);
+
+ if (start_valid) {
+ /*
+ * The start of the SGE is valid, so advance the length parameters,
+ * to include this SGE with previous SGEs for this child request
+ * (if any). If it is not valid, we do not advance the length
+ * parameters nor get the next SGE, because we must send what has
+ * been collected before this SGE as a child request.
+ */
+ child_length += sge_length;
+ req_current_length += sge_length;
+ if (req_current_length < req->payload_size) {
+ next_sge_fn(sgl_cb_arg, (void **)&address, &sge_length);
+ }
+ /*
+ * If the next SGE is not page aligned, we will need to create a child
+ * request for what we have so far, and then start a new child request for
+ * the next SGE.
+ */
+ start_valid = _is_page_aligned(address, page_size);
+ }
+
+ if (start_valid && end_valid && !last_sge) {
+ continue;
+ }
+
+ /*
+ * We need to create a split here. Send what we have accumulated so far as a child
+ * request. Checking if child_equals_parent allows us to *not* create a child request
+ * when no splitting is required - in that case we will fall-through and just create
+ * a single request with no children for the entire I/O.
+ */
+ if (!child_equals_parent) {
+ struct nvme_request *child;
+ uint32_t child_lba_count;
+
+ if ((child_length % ns->extended_lba_size) != 0) {
+ SPDK_ERRLOG("child_length %u not even multiple of lba_size %u\n",
+ child_length, ns->extended_lba_size);
+ return NULL;
+ }
+ child_lba_count = child_length / ns->extended_lba_size;
+ /*
+ * Note the last parameter is set to "false" - this tells the recursive
+ * call to _nvme_ns_cmd_rw() to not bother with checking for SGL splitting
+ * since we have already verified it here.
+ */
+ child = _nvme_add_child_request(ns, qpair, payload, payload_offset, md_offset,
+ child_lba, child_lba_count,
+ cb_fn, cb_arg, opc, io_flags,
+ apptag_mask, apptag, req, false);
+ if (child == NULL) {
+ return NULL;
+ }
+ payload_offset += child_length;
+ md_offset += child_lba_count * ns->md_size;
+ child_lba += child_lba_count;
+ child_length = 0;
+ }
+ }
+
+ if (child_length == req->payload_size) {
+ /* No splitting was required, so setup the whole payload as one request. */
+ _nvme_ns_cmd_setup_request(ns, req, opc, lba, lba_count, io_flags, apptag_mask, apptag);
+ }
+
+ return req;
+}
+
+static struct nvme_request *
+_nvme_ns_cmd_split_request_sgl(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ const struct nvme_payload *payload,
+ uint32_t payload_offset, uint32_t md_offset,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t opc,
+ uint32_t io_flags, struct nvme_request *req,
+ uint16_t apptag_mask, uint16_t apptag)
+{
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn = req->payload.reset_sgl_fn;
+ spdk_nvme_req_next_sge_cb next_sge_fn = req->payload.next_sge_fn;
+ void *sgl_cb_arg = req->payload.contig_or_cb_arg;
+ uint64_t child_lba = lba;
+ uint32_t req_current_length = 0;
+ uint32_t child_length = 0;
+ uint32_t sge_length;
+ uint16_t max_sges, num_sges;
+ uintptr_t address;
+
+ max_sges = ns->ctrlr->max_sges;
+
+ reset_sgl_fn(sgl_cb_arg, payload_offset);
+ num_sges = 0;
+
+ while (req_current_length < req->payload_size) {
+ next_sge_fn(sgl_cb_arg, (void **)&address, &sge_length);
+
+ if (req_current_length + sge_length > req->payload_size) {
+ sge_length = req->payload_size - req_current_length;
+ }
+
+ child_length += sge_length;
+ req_current_length += sge_length;
+ num_sges++;
+
+ if (num_sges < max_sges && req_current_length < req->payload_size) {
+ continue;
+ }
+
+ /*
+ * We need to create a split here. Send what we have accumulated so far as a child
+ * request. Checking if the child equals the full payload allows us to *not*
+ * create a child request when no splitting is required - in that case we will
+ * fall-through and just create a single request with no children for the entire I/O.
+ */
+ if (child_length != req->payload_size) {
+ struct nvme_request *child;
+ uint32_t child_lba_count;
+
+ if ((child_length % ns->extended_lba_size) != 0) {
+ SPDK_ERRLOG("child_length %u not even multiple of lba_size %u\n",
+ child_length, ns->extended_lba_size);
+ return NULL;
+ }
+ child_lba_count = child_length / ns->extended_lba_size;
+ /*
+ * Note the last parameter is set to "false" - this tells the recursive
+ * call to _nvme_ns_cmd_rw() to not bother with checking for SGL splitting
+ * since we have already verified it here.
+ */
+ child = _nvme_add_child_request(ns, qpair, payload, payload_offset, md_offset,
+ child_lba, child_lba_count,
+ cb_fn, cb_arg, opc, io_flags,
+ apptag_mask, apptag, req, false);
+ if (child == NULL) {
+ return NULL;
+ }
+ payload_offset += child_length;
+ md_offset += child_lba_count * ns->md_size;
+ child_lba += child_lba_count;
+ child_length = 0;
+ num_sges = 0;
+ }
+ }
+
+ if (child_length == req->payload_size) {
+ /* No splitting was required, so setup the whole payload as one request. */
+ _nvme_ns_cmd_setup_request(ns, req, opc, lba, lba_count, io_flags, apptag_mask, apptag);
+ }
+
+ return req;
+}
+
+static inline struct nvme_request *
+_nvme_ns_cmd_rw(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ const struct nvme_payload *payload, uint32_t payload_offset, uint32_t md_offset,
+ uint64_t lba, uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t opc,
+ uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag, bool check_sgl)
+{
+ struct nvme_request *req;
+ uint32_t sector_size;
+ uint32_t sectors_per_max_io;
+ uint32_t sectors_per_stripe;
+
+ sector_size = ns->extended_lba_size;
+ sectors_per_max_io = ns->sectors_per_max_io;
+ sectors_per_stripe = ns->sectors_per_stripe;
+
+ if ((io_flags & SPDK_NVME_IO_FLAGS_PRACT) &&
+ (ns->flags & SPDK_NVME_NS_EXTENDED_LBA_SUPPORTED) &&
+ (ns->flags & SPDK_NVME_NS_DPS_PI_SUPPORTED) &&
+ (ns->md_size == 8)) {
+ sector_size -= 8;
+ }
+
+ req = nvme_allocate_request(qpair, payload, lba_count * sector_size, lba_count * ns->md_size,
+ cb_fn, cb_arg);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ req->payload_offset = payload_offset;
+ req->md_offset = md_offset;
+
+ /*
+ * Intel DC P3*00 NVMe controllers benefit from driver-assisted striping.
+ * If this controller defines a stripe boundary and this I/O spans a stripe
+ * boundary, split the request into multiple requests and submit each
+ * separately to hardware.
+ */
+ if (sectors_per_stripe > 0 &&
+ (((lba & (sectors_per_stripe - 1)) + lba_count) > sectors_per_stripe)) {
+
+ return _nvme_ns_cmd_split_request(ns, qpair, payload, payload_offset, md_offset, lba, lba_count,
+ cb_fn,
+ cb_arg, opc,
+ io_flags, req, sectors_per_stripe, sectors_per_stripe - 1, apptag_mask, apptag);
+ } else if (lba_count > sectors_per_max_io) {
+ return _nvme_ns_cmd_split_request(ns, qpair, payload, payload_offset, md_offset, lba, lba_count,
+ cb_fn,
+ cb_arg, opc,
+ io_flags, req, sectors_per_max_io, 0, apptag_mask, apptag);
+ } else if (nvme_payload_type(&req->payload) == NVME_PAYLOAD_TYPE_SGL && check_sgl) {
+ if (ns->ctrlr->flags & SPDK_NVME_CTRLR_SGL_SUPPORTED) {
+ return _nvme_ns_cmd_split_request_sgl(ns, qpair, payload, payload_offset, md_offset,
+ lba, lba_count, cb_fn, cb_arg, opc, io_flags,
+ req, apptag_mask, apptag);
+ } else {
+ return _nvme_ns_cmd_split_request_prp(ns, qpair, payload, payload_offset, md_offset,
+ lba, lba_count, cb_fn, cb_arg, opc, io_flags,
+ req, apptag_mask, apptag);
+ }
+ }
+
+ _nvme_ns_cmd_setup_request(ns, req, opc, lba, lba_count, io_flags, apptag_mask, apptag);
+ return req;
+}
+
+int
+spdk_nvme_ns_cmd_compare(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair, void *buffer,
+ uint64_t lba,
+ uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_CONTIG(buffer, NULL);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg,
+ SPDK_NVME_OPC_COMPARE,
+ io_flags, 0,
+ 0, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_compare_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ void *buffer,
+ void *metadata,
+ uint64_t lba,
+ uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_CONTIG(buffer, metadata);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg,
+ SPDK_NVME_OPC_COMPARE,
+ io_flags,
+ apptag_mask, apptag, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_comparev(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
+ spdk_nvme_req_next_sge_cb next_sge_fn)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (reset_sgl_fn == NULL || next_sge_fn == NULL) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_SGL(reset_sgl_fn, next_sge_fn, cb_arg, NULL);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg,
+ SPDK_NVME_OPC_COMPARE,
+ io_flags, 0, 0, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_comparev_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
+ spdk_nvme_req_next_sge_cb next_sge_fn, void *metadata,
+ uint16_t apptag_mask, uint16_t apptag)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (reset_sgl_fn == NULL || next_sge_fn == NULL) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_SGL(reset_sgl_fn, next_sge_fn, cb_arg, metadata);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg,
+ SPDK_NVME_OPC_COMPARE, io_flags, apptag_mask, apptag, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_read(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair, void *buffer,
+ uint64_t lba,
+ uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_CONTIG(buffer, NULL);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_READ,
+ io_flags, 0,
+ 0, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_read_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair, void *buffer,
+ void *metadata,
+ uint64_t lba,
+ uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_CONTIG(buffer, metadata);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_READ,
+ io_flags,
+ apptag_mask, apptag, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_readv(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
+ spdk_nvme_req_next_sge_cb next_sge_fn)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (reset_sgl_fn == NULL || next_sge_fn == NULL) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_SGL(reset_sgl_fn, next_sge_fn, cb_arg, NULL);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_READ,
+ io_flags, 0, 0, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_readv_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
+ spdk_nvme_req_next_sge_cb next_sge_fn, void *metadata,
+ uint16_t apptag_mask, uint16_t apptag)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (reset_sgl_fn == NULL || next_sge_fn == NULL) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_SGL(reset_sgl_fn, next_sge_fn, cb_arg, metadata);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_READ,
+ io_flags, apptag_mask, apptag, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_write(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ void *buffer, uint64_t lba,
+ uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_CONTIG(buffer, NULL);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_WRITE,
+ io_flags, 0, 0, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_write_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ void *buffer, void *metadata, uint64_t lba,
+ uint32_t lba_count, spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags, uint16_t apptag_mask, uint16_t apptag)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_CONTIG(buffer, metadata);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_WRITE,
+ io_flags, apptag_mask, apptag, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_writev(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
+ spdk_nvme_req_next_sge_cb next_sge_fn)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (reset_sgl_fn == NULL || next_sge_fn == NULL) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_SGL(reset_sgl_fn, next_sge_fn, cb_arg, NULL);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_WRITE,
+ io_flags, 0, 0, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_writev_with_md(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg, uint32_t io_flags,
+ spdk_nvme_req_reset_sgl_cb reset_sgl_fn,
+ spdk_nvme_req_next_sge_cb next_sge_fn, void *metadata,
+ uint16_t apptag_mask, uint16_t apptag)
+{
+ struct nvme_request *req;
+ struct nvme_payload payload;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (reset_sgl_fn == NULL || next_sge_fn == NULL) {
+ return -EINVAL;
+ }
+
+ payload = NVME_PAYLOAD_SGL(reset_sgl_fn, next_sge_fn, cb_arg, metadata);
+
+ req = _nvme_ns_cmd_rw(ns, qpair, &payload, 0, 0, lba, lba_count, cb_fn, cb_arg, SPDK_NVME_OPC_WRITE,
+ io_flags, apptag_mask, apptag, true);
+ if (req != NULL) {
+ return nvme_qpair_submit_request(qpair, req);
+ } else if (nvme_ns_check_request_length(lba_count,
+ ns->sectors_per_max_io,
+ ns->sectors_per_stripe,
+ qpair->ctrlr->opts.io_queue_requests)) {
+ return -EINVAL;
+ } else {
+ return -ENOMEM;
+ }
+}
+
+int
+spdk_nvme_ns_cmd_write_zeroes(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg,
+ uint32_t io_flags)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+ uint64_t *tmp_lba;
+
+ if (!_is_io_flags_valid(io_flags)) {
+ return -EINVAL;
+ }
+
+ if (lba_count == 0 || lba_count > UINT16_MAX + 1) {
+ return -EINVAL;
+ }
+
+ req = nvme_allocate_request_null(qpair, cb_fn, cb_arg);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_WRITE_ZEROES;
+ cmd->nsid = ns->id;
+
+ tmp_lba = (uint64_t *)&cmd->cdw10;
+ *tmp_lba = lba;
+ cmd->cdw12 = lba_count - 1;
+ cmd->fuse = (io_flags & SPDK_NVME_IO_FLAGS_FUSE_MASK);
+ cmd->cdw12 |= (io_flags & SPDK_NVME_IO_FLAGS_CDW12_MASK);
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_write_uncorrectable(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint64_t lba, uint32_t lba_count,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+ uint64_t *tmp_lba;
+
+ if (lba_count == 0 || lba_count > UINT16_MAX + 1) {
+ return -EINVAL;
+ }
+
+ req = nvme_allocate_request_null(qpair, cb_fn, cb_arg);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_WRITE_UNCORRECTABLE;
+ cmd->nsid = ns->id;
+
+ tmp_lba = (uint64_t *)&cmd->cdw10;
+ *tmp_lba = lba;
+ cmd->cdw12 = lba_count - 1;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_dataset_management(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ uint32_t type,
+ const struct spdk_nvme_dsm_range *ranges, uint16_t num_ranges,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+
+ if (num_ranges == 0 || num_ranges > SPDK_NVME_DATASET_MANAGEMENT_MAX_RANGES) {
+ return -EINVAL;
+ }
+
+ if (ranges == NULL) {
+ return -EINVAL;
+ }
+
+ req = nvme_allocate_request_user_copy(qpair, (void *)ranges,
+ num_ranges * sizeof(struct spdk_nvme_dsm_range),
+ cb_fn, cb_arg, true);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_DATASET_MANAGEMENT;
+ cmd->nsid = ns->id;
+
+ cmd->cdw10_bits.dsm.nr = num_ranges - 1;
+ cmd->cdw11 = type;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_flush(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *qpair,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+
+ req = nvme_allocate_request_null(qpair, cb_fn, cb_arg);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_FLUSH;
+ cmd->nsid = ns->id;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_reservation_register(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ struct spdk_nvme_reservation_register_data *payload,
+ bool ignore_key,
+ enum spdk_nvme_reservation_register_action action,
+ enum spdk_nvme_reservation_register_cptpl cptpl,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+
+ req = nvme_allocate_request_user_copy(qpair,
+ payload, sizeof(struct spdk_nvme_reservation_register_data),
+ cb_fn, cb_arg, true);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_RESERVATION_REGISTER;
+ cmd->nsid = ns->id;
+
+ cmd->cdw10_bits.resv_register.rrega = action;
+ cmd->cdw10_bits.resv_register.iekey = ignore_key;
+ cmd->cdw10_bits.resv_register.cptpl = cptpl;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_reservation_release(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ struct spdk_nvme_reservation_key_data *payload,
+ bool ignore_key,
+ enum spdk_nvme_reservation_release_action action,
+ enum spdk_nvme_reservation_type type,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+
+ req = nvme_allocate_request_user_copy(qpair,
+ payload, sizeof(struct spdk_nvme_reservation_key_data), cb_fn,
+ cb_arg, true);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_RESERVATION_RELEASE;
+ cmd->nsid = ns->id;
+
+ cmd->cdw10_bits.resv_release.rrela = action;
+ cmd->cdw10_bits.resv_release.iekey = ignore_key;
+ cmd->cdw10_bits.resv_release.rtype = type;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_reservation_acquire(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ struct spdk_nvme_reservation_acquire_data *payload,
+ bool ignore_key,
+ enum spdk_nvme_reservation_acquire_action action,
+ enum spdk_nvme_reservation_type type,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+
+ req = nvme_allocate_request_user_copy(qpair,
+ payload, sizeof(struct spdk_nvme_reservation_acquire_data),
+ cb_fn, cb_arg, true);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_RESERVATION_ACQUIRE;
+ cmd->nsid = ns->id;
+
+ cmd->cdw10_bits.resv_acquire.racqa = action;
+ cmd->cdw10_bits.resv_acquire.iekey = ignore_key;
+ cmd->cdw10_bits.resv_acquire.rtype = type;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
+
+int
+spdk_nvme_ns_cmd_reservation_report(struct spdk_nvme_ns *ns,
+ struct spdk_nvme_qpair *qpair,
+ void *payload, uint32_t len,
+ spdk_nvme_cmd_cb cb_fn, void *cb_arg)
+{
+ uint32_t num_dwords;
+ struct nvme_request *req;
+ struct spdk_nvme_cmd *cmd;
+
+ if (len % 4) {
+ return -EINVAL;
+ }
+ num_dwords = len / 4;
+
+ req = nvme_allocate_request_user_copy(qpair, payload, len, cb_fn, cb_arg, false);
+ if (req == NULL) {
+ return -ENOMEM;
+ }
+
+ cmd = &req->cmd;
+ cmd->opc = SPDK_NVME_OPC_RESERVATION_REPORT;
+ cmd->nsid = ns->id;
+
+ cmd->cdw10 = num_dwords;
+
+ return nvme_qpair_submit_request(qpair, req);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 00:29:10 +0000