[PATCH] net/iavf:fix slow memory allocation

[Kaisen You]

In some cases, the DPDK does not allocate hugepage heap memory to
some sockets due to the user setting parameters
(e.g. -l 40-79, SOCKET 0 has no memory).
When the interrupt thread runs on the corresponding core of this
socket, each allocation/release will execute a whole set of heap
allocation/release operations,resulting in poor performance.
Instead we call malloc() to get memory from the system's
heap space to fix this problem.

Fixes: cb5c1b91f76f ("net/iavf: add thread for event callbacks")
Cc: sta...@dpdk.org

Signed-off-by: Kaisen You <kaisenx....@intel.com>
---
 drivers/net/iavf/iavf_vchnl.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index f92daf97f2..a05791fe48 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -36,7 +36,6 @@ struct iavf_event_element {
        struct rte_eth_dev *dev;
        enum rte_eth_event_type event;
        void *param;
-       size_t param_alloc_size;
        uint8_t param_alloc_data[0];
 };
 
@@ -80,7 +79,7 @@ iavf_dev_event_handle(void *param __rte_unused)
                TAILQ_FOREACH_SAFE(pos, &pending, next, save_next) {
                        TAILQ_REMOVE(&pending, pos, next);
                        rte_eth_dev_callback_process(pos->dev, pos->event, 
pos->param);
-                       rte_free(pos);
+                       free(pos);
                }
        }
 
@@ -94,14 +93,13 @@ iavf_dev_event_post(struct rte_eth_dev *dev,
 {
        struct iavf_event_handler *handler = &event_handler;
        char notify_byte;
-       struct iavf_event_element *elem = rte_malloc(NULL, sizeof(*elem) + 
param_alloc_size, 0);
+       struct iavf_event_element *elem = malloc(sizeof(*elem) + 
param_alloc_size);
        if (!elem)
                return;
 
        elem->dev = dev;
        elem->event = event;
        elem->param = param;
-       elem->param_alloc_size = param_alloc_size;
        if (param && param_alloc_size) {
                rte_memcpy(elem->param_alloc_data, param, param_alloc_size);
                elem->param = elem->param_alloc_data;
@@ -165,7 +163,7 @@ iavf_dev_event_handler_fini(void)
        struct iavf_event_element *pos, *save_next;
        TAILQ_FOREACH_SAFE(pos, &handler->pending, next, save_next) {
                TAILQ_REMOVE(&handler->pending, pos, next);
-               rte_free(pos);
+               free(pos);
        }
 }
 
-- 
2.34.1