Commit a57daa69 authored Jun 28, 2019 by Shuhei Matsumoto Committed by Ben Walker Jul 01, 2019

env: Add an API to lookup the memory pool created by the primary process



Add spdk_mempool_lookup to lookup the memory pool created by the
primary process. This will be utilized in SPDK multi process
application future.

Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I90505b6566dfc93ef5957ef4c73b1a6438c30742
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459739


Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

parent 60c8845f

CHANGELOG.md

+3 −0

Original line number	Diff line number	Diff line
		@@ -66,6 +66,9 @@ The parameter `free_space` has been added to spdk_ring_enqueue() to wait when
		the ring is almost full and resume when there is enough space available in
		the ring.

		A new API `spdk_mempool_lookup` has been added to lookup the memory pool created
		by the primary process.

		## v19.04:

		### nvme

include/spdk/env.h

+9 −0

Original line number	Diff line number	Diff line
		@@ -442,6 +442,15 @@ size_t spdk_mempool_count(const struct spdk_mempool *pool);
		uint32_t spdk_mempool_obj_iter(struct spdk_mempool *mp, spdk_mempool_obj_cb_t obj_cb,
		void *obj_cb_arg);

		/**
		* Lookup the memory pool identified by the given name.
		*
		* \param name Name of the memory pool.
		*
		* \return a pointer to the memory pool on success, or NULL on failure.
		*/
		struct spdk_mempool spdk_mempool_lookup(const char name);

		/**
		* Get the number of dedicated CPU cores utilized by this env abstraction.
		*

lib/env_dpdk/env.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -296,6 +296,12 @@ spdk_mempool_obj_iter(struct spdk_mempool *mp, spdk_mempool_obj_cb_t obj_cb,
		obj_cb_arg);
		}

		struct spdk_mempool *
		spdk_mempool_lookup(const char *name)
		{
		return (struct spdk_mempool *)rte_mempool_lookup(name);
		}

		bool
		spdk_process_is_primary(void)
		{