[dpdk-dev] [PATCH v2] i40e: fix the issue of not freeing memzone
Helin Zhang
helin.zhang at intel.com
Fri Nov 6 08:57:05 CET 2015
This fixes the issue of not freeing memzone in a call to free the
memory for adminq DMA.
Signed-off-by: Helin Zhang <helin.zhang at intel.com>
---
doc/guides/rel_notes/release_2_2.rst | 5 +++++
drivers/net/i40e/base/i40e_osdep.h | 2 +-
drivers/net/i40e/i40e_ethdev.c | 14 +++++++++-----
3 files changed, 15 insertions(+), 6 deletions(-)
v2 changes:
Reworked debug messages.
diff --git a/doc/guides/rel_notes/release_2_2.rst b/doc/guides/rel_notes/release_2_2.rst
index 59dda59..eaa906c 100644
--- a/doc/guides/rel_notes/release_2_2.rst
+++ b/doc/guides/rel_notes/release_2_2.rst
@@ -150,6 +150,11 @@ Drivers
Added discarding packets on VSI to the stats and rectify the old statistics.
+* **i40e: Fixed issue of not freeing memzone.**
+
+ Fixed the issue of not freeing memzone in the call to free the memory for
+ adminq DMA.
+
* **vhost: Fixed Qemu shutdown.**
Fixed issue with libvirt ``virsh destroy`` not killing the VM.
diff --git a/drivers/net/i40e/base/i40e_osdep.h b/drivers/net/i40e/base/i40e_osdep.h
index 70d2721..71077f0 100644
--- a/drivers/net/i40e/base/i40e_osdep.h
+++ b/drivers/net/i40e/base/i40e_osdep.h
@@ -146,7 +146,7 @@ struct i40e_dma_mem {
void *va;
u64 pa;
u32 size;
- u64 id;
+ const void *zone;
} __attribute__((packed));
#define i40e_allocate_dma_mem(h, m, unused, s, a) \
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index ddf3d38..9f06ec2 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -2910,15 +2910,13 @@ i40e_allocate_dma_mem_d(__attribute__((unused)) struct i40e_hw *hw,
u64 size,
u32 alignment)
{
- static uint64_t id = 0;
const struct rte_memzone *mz = NULL;
char z_name[RTE_MEMZONE_NAMESIZE];
if (!mem)
return I40E_ERR_PARAM;
- id++;
- snprintf(z_name, sizeof(z_name), "i40e_dma_%"PRIu64, id);
+ snprintf(z_name, sizeof(z_name), "i40e_dma_%"PRIu64, rte_rand());
#ifdef RTE_LIBRTE_XEN_DOM0
mz = rte_memzone_reserve_bounded(z_name, size, SOCKET_ID_ANY, 0,
alignment, RTE_PGSIZE_2M);
@@ -2929,7 +2927,6 @@ i40e_allocate_dma_mem_d(__attribute__((unused)) struct i40e_hw *hw,
if (!mz)
return I40E_ERR_NO_MEMORY;
- mem->id = id;
mem->size = size;
mem->va = mz->addr;
#ifdef RTE_LIBRTE_XEN_DOM0
@@ -2937,6 +2934,9 @@ i40e_allocate_dma_mem_d(__attribute__((unused)) struct i40e_hw *hw,
#else
mem->pa = mz->phys_addr;
#endif
+ mem->zone = (const void *)mz;
+ PMD_DRV_LOG(DEBUG, "memzone %s allocated with physical address: %p",
+ mz->name, mem->pa);
return I40E_SUCCESS;
}
@@ -2950,9 +2950,13 @@ enum i40e_status_code
i40e_free_dma_mem_d(__attribute__((unused)) struct i40e_hw *hw,
struct i40e_dma_mem *mem)
{
- if (!mem || !mem->va)
+ if (!mem)
return I40E_ERR_PARAM;
+ PMD_DRV_LOG(DEBUG, "memzone %s to be freed with physical address: %p",
+ ((const struct rte_memzone *)mem->zone)->name, mem->pa);
+ rte_memzone_free((const struct rte_memzone *)mem->zone);
+ mem->zone = NULL;
mem->va = NULL;
mem->pa = (u64)0;
--
1.9.3
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