From 64d0c5c6fd788d3b84726d15c08ffb8d908b5427 Mon Sep 17 00:00:00 2001
From: sunshihao <sunshihao@huawei.com>
Date: Mon, 1 Mar 2021 09:20:10 +0800
Subject: [PATCH 08/12] use spdk_nvme_ns_cmd_dataset_management and delete
 spdk_nvme_ns_cmd_unmap_blocks

Signed-off-by: sunshihao520 <sunshihao@huawei.com>
---
 include/spdk/nvme.h               | 33 -----------------------------
 lib/nvme/nvme_ns_cmd.c            | 35 -------------------------------
 module/bdev/nvme/bdev_nvme_self.c |  8 +++----
 3 files changed, 4 insertions(+), 72 deletions(-)

diff --git a/include/spdk/nvme.h b/include/spdk/nvme.h
index 507e139..ad5da75 100644
--- a/include/spdk/nvme.h
+++ b/include/spdk/nvme.h
@@ -4356,39 +4356,6 @@ bool spdk_nvme_ns_pi_md_start(struct spdk_nvme_ns *ns);
 bool spdk_nvme_ns_is_dataset_mng_supported(struct spdk_nvme_ns *ns);
 uint16_t spdk_nvme_get_qpair_id(struct spdk_nvme_qpair *qpair);
 
-/**
- * Submit a data set management request to the specified NVMe namespace. Data set
- * management operations are designed to optimize interaction with the block
- * translation layer inside the device. The most common type of operation is
- * deallocate, which is often referred to as TRIM or UNMAP.
- *
- * The command is submitted to a qpair allocated by spdk_nvme_ctrlr_alloc_io_qpair().
- * The user must ensure that only one thread submits I/O on a given qpair at any
- * given time.
- *
- * This is a convenience wrapper that will automatically allocate and construct
- * the correct data buffers. Therefore, ranges does not need to be allocated from
- * pinned memory and can be placed on the stack. If a higher performance, zero-copy
- * version of DSM is required, simply build and submit a raw command using
- * spdk_nvme_ctrlr_cmd_io_raw().
- *
- * \param ns NVMe namespace to submit the DSM request
- * \param type A bit field constructed from \ref spdk_nvme_dsm_attribute.
- * \param qpair I/O queue pair to submit the request
- * \param ranges An array of \ref spdk_nvme_dsm_range elements describing the LBAs
- * to operate on.
- * \param num_ranges The number of elements in the ranges array.
- * \param cb_fn Callback function to invoke when the I/O is completed
- * \param cb_arg Argument to pass to the callback function
- *
- * \return 0 if successfully submitted, negated POSIX errno values otherwise.
- */
-int spdk_nvme_ns_cmd_unmap_blocks(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);
 /**
  * \brief Submits a write I/O to the specified NVMe namespace.
  *
diff --git a/lib/nvme/nvme_ns_cmd.c b/lib/nvme/nvme_ns_cmd.c
index b324b4b..3f37cd7 100644
--- a/lib/nvme/nvme_ns_cmd.c
+++ b/lib/nvme/nvme_ns_cmd.c
@@ -1556,38 +1556,3 @@ spdk_nvme_ns_cmd_io_mgmt_send(struct spdk_nvme_ns *ns, struct spdk_nvme_qpair *q
 
 	return nvme_qpair_submit_request(qpair, req);
 }
-
-#ifdef SPDK_CONFIG_APP_RW
-int
-spdk_nvme_ns_cmd_unmap_blocks(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 = NULL;
-	struct spdk_nvme_cmd	*cmd = NULL;
-	struct nvme_payload	payload;
-
-	if (ranges == NULL) {
-		return -EINVAL;
-	}
-
-	payload = NVME_PAYLOAD_CONTIG((void *)ranges, NULL);
-
-	req = nvme_allocate_request(qpair, &payload, num_ranges * sizeof(struct spdk_nvme_dsm_range),
-				    0, cb_fn, cb_arg);
-	if (req == NULL) {
-		return -ENOMEM;
-	}
-
-	req->user_cb_arg = cb_arg;
-
-	cmd = &req->cmd;
-	cmd->opc = SPDK_NVME_OPC_DATASET_MANAGEMENT;
-	cmd->nsid = ns->id;
-
-	cmd->cdw10 = num_ranges - 1;
-	cmd->cdw11 = type;
-
-	return nvme_qpair_submit_request(qpair, req);
-}
diff --git a/module/bdev/nvme/bdev_nvme_self.c b/module/bdev/nvme/bdev_nvme_self.c
index 7371ecb..1419b1f 100644
--- a/module/bdev/nvme/bdev_nvme_self.c
+++ b/module/bdev/nvme/bdev_nvme_self.c
@@ -565,10 +565,10 @@ bdev_nvme_unmap_blocks(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, void
 	}
 
 	spdk_bdev_set_io_location(driver_ctx, (uint8_t)LOCAL_LIBSTORAGE_BDEV_NVME);
-	return spdk_nvme_ns_cmd_unmap_blocks(nbdev->nvme_ns->ns, nvme_ch->qpair,
-					     SPDK_NVME_DSM_ATTR_DEALLOCATE,
-					     unmap_d, unmap_count,
-					     bdev_nvme_queued_done, driver_ctx);
+	return spdk_nvme_ns_cmd_dataset_management(nbdev->nvme_ns->ns, nvme_ch->qpair,
+						   SPDK_NVME_DSM_ATTR_DEALLOCATE,
+						   unmap_d, unmap_count,
+						   bdev_nvme_queued_done, driver_ctx);
 }
 
 void
-- 
2.43.0