[dpdk-dev,v2] fm10k: fix a crash bug when quit from testpmd
Commit Message
From: "Chen Jing D(Mark)" <jing.d.chen@intel.com>
When the fm10k port is closed, both func tx_queue_clean() and
fm10k_tx_queue_release_mbufs_vec() will try to release buffer in
SW ring. The latter func won't do sanity check on those pointers
and cause crash.
The fix removed Vector TX buffer release func since it can share
the release functions with regular TX.
fixes: fb9066e479a6(fm10k: reset and release mbuf)
Signed-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>
Acked-by: Michael Qiu <michael.qiu@intel.com>
---
drivers/net/fm10k/fm10k.h | 1 -
drivers/net/fm10k/fm10k_ethdev.c | 7 +++----
drivers/net/fm10k/fm10k_rxtx_vec.c | 28 ----------------------------
3 files changed, 3 insertions(+), 33 deletions(-)
v2 changes:
- remove debug info for actual rx/tx func.
Comments
2015-11-24 11:10, Chen Jing D:
> When the fm10k port is closed, both func tx_queue_clean() and
> fm10k_tx_queue_release_mbufs_vec() will try to release buffer in
> SW ring. The latter func won't do sanity check on those pointers
> and cause crash.
>
> The fix removed Vector TX buffer release func since it can share
> the release functions with regular TX.
>
> fixes: fb9066e479a6(fm10k: reset and release mbuf)
>
> Signed-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>
> Acked-by: Michael Qiu <michael.qiu@intel.com>
Applied, thanks
@@ -237,7 +237,6 @@ struct fm10k_tx_queue {
};
struct fm10k_txq_ops {
- void (*release_mbufs)(struct fm10k_tx_queue *txq);
void (*reset)(struct fm10k_tx_queue *txq);
};
@@ -386,7 +386,6 @@ fm10k_check_mq_mode(struct rte_eth_dev *dev)
}
static const struct fm10k_txq_ops def_txq_ops = {
- .release_mbufs = tx_queue_free,
.reset = tx_queue_reset,
};
@@ -1073,7 +1072,7 @@ fm10k_dev_queue_release(struct rte_eth_dev *dev)
for (i = 0; i < dev->data->nb_tx_queues; i++) {
struct fm10k_tx_queue *txq = dev->data->tx_queues[i];
- txq->ops->release_mbufs(txq);
+ tx_queue_free(txq);
}
}
@@ -1761,7 +1760,7 @@ fm10k_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_id,
if (dev->data->tx_queues[queue_id] != NULL) {
struct fm10k_tx_queue *txq = dev->data->tx_queues[queue_id];
- txq->ops->release_mbufs(txq);
+ tx_queue_free(txq);
dev->data->tx_queues[queue_id] = NULL;
}
@@ -1836,7 +1835,7 @@ fm10k_tx_queue_release(void *queue)
struct fm10k_tx_queue *q = queue;
PMD_INIT_FUNC_TRACE();
- q->ops->release_mbufs(q);
+ tx_queue_free(q);
}
static int
@@ -45,8 +45,6 @@
#endif
static void
-fm10k_tx_queue_release_mbufs_vec(struct fm10k_tx_queue *txq);
-static void
fm10k_reset_tx_queue(struct fm10k_tx_queue *txq);
/* Handling the offload flags (olflags) field takes computation
@@ -634,7 +632,6 @@ fm10k_recv_scattered_pkts_vec(void *rx_queue,
}
static const struct fm10k_txq_ops vec_txq_ops = {
- .release_mbufs = fm10k_tx_queue_release_mbufs_vec,
.reset = fm10k_reset_tx_queue,
};
@@ -795,31 +792,6 @@ fm10k_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
}
static void __attribute__((cold))
-fm10k_tx_queue_release_mbufs_vec(struct fm10k_tx_queue *txq)
-{
- unsigned i;
- const uint16_t max_desc = (uint16_t)(txq->nb_desc - 1);
-
- if (txq->sw_ring == NULL || txq->nb_free == max_desc)
- return;
-
- /* release the used mbufs in sw_ring */
- for (i = txq->next_dd - (txq->rs_thresh - 1);
- i != txq->next_free;
- i = (i + 1) & max_desc)
- rte_pktmbuf_free_seg(txq->sw_ring[i]);
-
- txq->nb_free = max_desc;
-
- /* reset tx_entry */
- for (i = 0; i < txq->nb_desc; i++)
- txq->sw_ring[i] = NULL;
-
- rte_free(txq->sw_ring);
- txq->sw_ring = NULL;
-}
-
-static void __attribute__((cold))
fm10k_reset_tx_queue(struct fm10k_tx_queue *txq)
{
static const struct fm10k_tx_desc zeroed_desc = {0};