[dpdk-dev] [PATCH v5 8/8] mempool: update range info to pool

[Santosh Shukla]

HW pool manager e.g. Octeontx SoC demands s/w to program start and end
address of pool. Currently, there is no such handle in external mempool.
Introducing rte_mempool_update_range handle which will let HW(pool
manager) to know when common layer selects hugepage:
For each hugepage - update its start/end address to HW pool manager.

Signed-off-by: Santosh Shukla <santosh.shu...@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
---
 lib/librte_mempool/rte_mempool.c           |  3 +++
 lib/librte_mempool/rte_mempool.h           | 22 ++++++++++++++++++++++
 lib/librte_mempool/rte_mempool_ops.c       | 13 +++++++++++++
 lib/librte_mempool/rte_mempool_version.map |  1 +
 4 files changed, 39 insertions(+)

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 38dab1067..65f17a7a7 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -363,6 +363,9 @@ rte_mempool_populate_phys(struct rte_mempool *mp, char 
*vaddr,
        struct rte_mempool_memhdr *memhdr;
        int ret;
 
+       /* update range info to mempool */
+       rte_mempool_ops_update_range(mp, vaddr, paddr, len);
+
        /* create the internal ring if not already done */
        if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) {
                ret = rte_mempool_ops_alloc(mp);
diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h
index 110ffb601..dfde31c35 100644
--- a/lib/librte_mempool/rte_mempool.h
+++ b/lib/librte_mempool/rte_mempool.h
@@ -405,6 +405,12 @@ typedef unsigned (*rte_mempool_get_count)(const struct 
rte_mempool *mp);
 typedef int (*rte_mempool_get_capabilities_t)(const struct rte_mempool *mp,
                unsigned int *flags);
 
+/**
+ * Update range info to mempool.
+ */
+typedef void (*rte_mempool_update_range_t)(const struct rte_mempool *mp,
+               char *vaddr, phys_addr_t paddr, size_t len);
+
 /** Structure defining mempool operations structure */
 struct rte_mempool_ops {
        char name[RTE_MEMPOOL_OPS_NAMESIZE]; /**< Name of mempool ops struct. */
@@ -417,6 +423,7 @@ struct rte_mempool_ops {
         * Get the pool capability
         */
        rte_mempool_get_capabilities_t get_capabilities;
+       rte_mempool_update_range_t update_range; /**< Update range to mempool */
 } __rte_cache_aligned;
 
 #define RTE_MEMPOOL_MAX_OPS_IDX 16  /**< Max registered ops structs */
@@ -543,6 +550,21 @@ rte_mempool_ops_get_count(const struct rte_mempool *mp);
 int
 rte_mempool_ops_get_capabilities(const struct rte_mempool *mp,
                                        unsigned int *flags);
+/**
+ * @internal wrapper for mempool_ops update_range callback.
+ *
+ * @param mp
+ *   Pointer to the memory pool.
+ * @param vaddr
+ *   Pointer to the buffer virtual address
+ * @param paddr
+ *   Pointer to the buffer physical address
+ * @param len
+ *   Pool size
+ */
+void
+rte_mempool_ops_update_range(const struct rte_mempool *mp,
+                               char *vaddr, phys_addr_t paddr, size_t len);
 
 /**
  * @internal wrapper for mempool_ops free callback.
diff --git a/lib/librte_mempool/rte_mempool_ops.c 
b/lib/librte_mempool/rte_mempool_ops.c
index 9f605ae2d..549ade2d1 100644
--- a/lib/librte_mempool/rte_mempool_ops.c
+++ b/lib/librte_mempool/rte_mempool_ops.c
@@ -87,6 +87,7 @@ rte_mempool_register_ops(const struct rte_mempool_ops *h)
        ops->dequeue = h->dequeue;
        ops->get_count = h->get_count;
        ops->get_capabilities = h->get_capabilities;
+       ops->update_range = h->update_range;
 
        rte_spinlock_unlock(&rte_mempool_ops_table.sl);
 
@@ -138,6 +139,18 @@ rte_mempool_ops_get_capabilities(const struct rte_mempool 
*mp,
        return ops->get_capabilities(mp, flags);
 }
 
+/* wrapper to update range info to external mempool */
+void
+rte_mempool_ops_update_range(const struct rte_mempool *mp, char *vaddr,
+                            phys_addr_t paddr, size_t len)
+{
+       struct rte_mempool_ops *ops;
+
+       ops = rte_mempool_get_ops(mp->ops_index);
+       RTE_FUNC_PTR_OR_RET(ops->update_range);
+       ops->update_range(mp, vaddr, paddr, len);
+}
+
 /* sets mempool ops previously registered by rte_mempool_register_ops. */
 int
 rte_mempool_set_ops_byname(struct rte_mempool *mp, const char *name,
diff --git a/lib/librte_mempool/rte_mempool_version.map 
b/lib/librte_mempool/rte_mempool_version.map
index 3c3471507..2663001c3 100644
--- a/lib/librte_mempool/rte_mempool_version.map
+++ b/lib/librte_mempool/rte_mempool_version.map
@@ -46,5 +46,6 @@ DPDK_17.11 {
        global:
 
        rte_mempool_ops_get_capabilities;
+       rte_mempool_ops_update_range;
 
 } DPDK_16.07;
-- 
2.11.0