Commit 070d61f2 authored by Richael Zhuang's avatar Richael Zhuang Committed by Tomasz Zawadzki
Browse files

nvme: add API to get outstanding reqs number 



Added spdk_nvme_qpair_get_num_outstanding_reqs to get the number
of outstanding reqs for a specific qpair.

Change-Id: I55d75a7363ac63bd26db76594e70e8b17b3e5830
Signed-off-by: default avatarRichael Zhuang <richael.zhuang@arm.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15916


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: default avatarShuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarAleksey Marchuk <alexeymar@nvidia.com>
parent 41bf6280

CHANGELOG.md

+3 −0
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@@ -115,6 +115,9 @@ tag that was logged at least once. 
Added `transport_tos` to `spdk_nvme_ctrlr_opts` to support setting of the "type of service"

value in the IPv4 header. Only RDMA is supported at this time.



Added API spdk_nvme_qpair_get_num_outstanding_reqs to get the number of outstanding reqs of

a specified qpair.



### bdev_nvme



Updated `bdev_nvme_set_options` RPC (and rpc.py) to support the new `transport_tos` parameter.

include/spdk/nvme.h

+14 −0
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@@ -3791,6 +3791,20 @@ void spdk_nvme_qpair_print_completion(struct spdk_nvme_qpair *qpair, 
 */

uint16_t spdk_nvme_qpair_get_id(struct spdk_nvme_qpair *qpair);



/**

 * Gets the number of outstanding requests for the specified qpair.

 *

 * This number is not decremented until after a request's callback function is completed.

 *

 * This number is not matched necessarily to the number of NVMe commands submitted by the

 * user. For example, nvme driver may split a request due to MDTS limitations, that will

 * also allocate a request for the parent, etc.

 *

 * \param qpair Pointer to the NVMe queue pair.

 * \returns number of outstanding requests for the specified qpair.

 */

uint32_t spdk_nvme_qpair_get_num_outstanding_reqs(struct spdk_nvme_qpair *qpair);



/**

 * \brief Prints (SPDK_NOTICELOG) the contents of an NVMe submission queue entry (command).

 *

lib/nvme/nvme_qpair.c

+6 −0
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@@ -1197,3 +1197,9 @@ spdk_nvme_qpair_get_id(struct spdk_nvme_qpair *qpair) 
{

	return qpair->id;

}



uint32_t

spdk_nvme_qpair_get_num_outstanding_reqs(struct spdk_nvme_qpair *qpair)

{

	return qpair->num_outstanding_reqs;

}

lib/nvme/spdk_nvme.map

+1 −0
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@@ -178,6 +178,7 @@ 
	spdk_nvme_qpair_print_command;

	spdk_nvme_qpair_print_completion;

	spdk_nvme_qpair_get_id;

	spdk_nvme_qpair_get_num_outstanding_reqs;



	spdk_nvme_print_command;

	spdk_nvme_print_completion;