If the user reconfigures the queue size, then the previously allocated
memzone may potentially be too small. Release the memzone when a queue
is released and allocate a new one each time a queue is setup.
While here convert to rte_eth_dma_zone_reserve() which does basically
the same things as the private function.
Fixes: dfaff37fc46d ("vmxnet3: import new vmxnet3 poll mode driver
implementation")
Signed-off-by: Chas Williams <ciwil...@brocade.com>
---
drivers/net/vmxnet3/vmxnet3_ring.h | 2 ++
drivers/net/vmxnet3/vmxnet3_rxtx.c | 37 +++++++++++--------------------------
2 files changed, 13 insertions(+), 26 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_ring.h
b/drivers/net/vmxnet3/vmxnet3_ring.h
index 0ce46c5..d2e8323 100644
--- a/drivers/net/vmxnet3/vmxnet3_ring.h
+++ b/drivers/net/vmxnet3/vmxnet3_ring.h
@@ -141,6 +141,7 @@ typedef struct vmxnet3_tx_queue {
uint32_t qid;
struct Vmxnet3_TxQueueDesc *shared;
struct vmxnet3_txq_stats stats;
+ const struct rte_memzone *mz;
bool stopped;
uint16_t queue_id; /**< Device TX queue index.
*/
uint8_t port_id; /**< Device port
identifier. */
@@ -175,6 +176,7 @@ typedef struct vmxnet3_rx_queue {
struct rte_mbuf *start_seg;
struct rte_mbuf *last_seg;
struct vmxnet3_rxq_stats stats;
+ const struct rte_memzone *mz;
bool stopped;
uint16_t queue_id; /**< Device RX queue index.
*/
uint8_t port_id; /**< Device port identifier.
*/
diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c
b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index 6649c3f..e865c67 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -201,6 +201,8 @@ vmxnet3_dev_tx_queue_release(void *txq)
vmxnet3_tx_cmd_ring_release_mbufs(&tq->cmd_ring);
/* Release the cmd_ring */
vmxnet3_cmd_ring_release(&tq->cmd_ring);
+ /* Release the memzone */
+ rte_memzone_free(tq->mz);
}
}
@@ -218,6 +220,9 @@ vmxnet3_dev_rx_queue_release(void *rxq)
/* Release both the cmd_rings */
for (i = 0; i < VMXNET3_RX_CMDRING_SIZE; i++)
vmxnet3_cmd_ring_release(&rq->cmd_ring[i]);
+
+ /* Release the memzone */
+ rte_memzone_free(rq->mz);
}
}
@@ -891,30 +896,6 @@ vmxnet3_recv_pkts(void *rx_queue, struct rte_mbuf
**rx_pkts, uint16_t nb_pkts)
return nb_rx;
}
-/*
- * Create memzone for device rings. malloc can't be used as the physical
address is
- * needed. If the memzone is already created, then this function returns a ptr
- * to the old one.
- */
-static const struct rte_memzone *
-ring_dma_zone_reserve(struct rte_eth_dev *dev, const char *ring_name,
- uint16_t queue_id, uint32_t ring_size, int socket_id)
-{
- char z_name[RTE_MEMZONE_NAMESIZE];
- const struct rte_memzone *mz;
-
- snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
- dev->driver->pci_drv.driver.name, ring_name,
- dev->data->port_id, queue_id);
-
- mz = rte_memzone_lookup(z_name);
- if (mz)
- return mz;
-
- return rte_memzone_reserve_aligned(z_name, ring_size,
- socket_id, 0, VMXNET3_RING_BA_ALIGN);
-}
-
int
vmxnet3_dev_tx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
@@ -983,11 +964,13 @@ vmxnet3_dev_tx_queue_setup(struct rte_eth_dev *dev,
size += sizeof(struct Vmxnet3_TxCompDesc) * comp_ring->size;
size += txq->txdata_desc_size * data_ring->size;
- mz = ring_dma_zone_reserve(dev, "txdesc", queue_idx, size, socket_id);
+ mz = rte_eth_dma_zone_reserve(dev, "txdesc", queue_idx, size,
+ VMXNET3_RING_BA_ALIGN, socket_id);
if (mz == NULL) {
PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
return -ENOMEM;
}
+ txq->mz = mz;
memset(mz->addr, 0, mz->len);
/* cmd_ring initialization */
@@ -1092,11 +1075,13 @@ vmxnet3_dev_rx_queue_setup(struct rte_eth_dev *dev,
if (VMXNET3_VERSION_GE_3(hw) && rxq->data_desc_size)
size += rxq->data_desc_size * data_ring->size;
- mz = ring_dma_zone_reserve(dev, "rxdesc", queue_idx, size, socket_id);
+ mz = rte_eth_dma_zone_reserve(dev, "rxdesc", queue_idx, size,
+ VMXNET3_RING_BA_ALIGN, socket_id);
if (mz == NULL) {
PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
return -ENOMEM;
}
+ rxq->mz = mz;
memset(mz->addr, 0, mz->len);
/* cmd_ring0 initialization */
--
2.1.4
