From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: Yong Wang <yongwang@vmware.com>
Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>, dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/vmxnet3: fix mbuf release on reset/stop' has been queued to stable release 16.07.2
Date: Tue, 15 Nov 2016 19:40:31 +0800 [thread overview]
Message-ID: <1479210033-24775-11-git-send-email-yuanhan.liu@linux.intel.com> (raw)
In-Reply-To: <1479210033-24775-1-git-send-email-yuanhan.liu@linux.intel.com>
Hi,
FYI, your patch has been queued to stable release 16.07.2
Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable
yet. It will be pushed if I get no objections before 11/19/16.
So please shout if anyone has objections.
Thanks.
--yliu
---
>From 67a7da450f1c1a139086f39ca72a69941a246cfd Mon Sep 17 00:00:00 2001
From: Yong Wang <yongwang@vmware.com>
Date: Wed, 26 Oct 2016 10:45:07 -0700
Subject: [PATCH] net/vmxnet3: fix mbuf release on reset/stop
[ upstream commit 646edddf075bbe6865ebb12ac3da4effab28a571 ]
During device reset/stop, vmxnet3 releases all mbufs in tx and
rx cmd ring. For rx, we should go over all ring descriptors and
free using rte_pktmbuf_free_seg() instead of rte_pktmbuf_free()
as the metadata of the mbuf might not be properly initialized
(initialization after mempool creation is done in the rx routine)
and the mbuf should always be a single-segment one when populated.
For tx, we can use the existing way as mbuf, if any, will be a
valid one stashed in the eop.
Fixes: dfaff37fc46d ("vmxnet3: import new vmxnet3 poll mode driver implementation")
Signed-off-by: Yong Wang <yongwang@vmware.com>
---
drivers/net/vmxnet3/vmxnet3_rxtx.c | 34 +++++++++++++++++++++++++++++-----
1 file changed, 29 insertions(+), 5 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_rxtx.c b/drivers/net/vmxnet3/vmxnet3_rxtx.c
index 9deeb3f..88df576 100644
--- a/drivers/net/vmxnet3/vmxnet3_rxtx.c
+++ b/drivers/net/vmxnet3/vmxnet3_rxtx.c
@@ -141,10 +141,10 @@ vmxnet3_txq_dump(struct vmxnet3_tx_queue *txq)
#endif
static void
-vmxnet3_cmd_ring_release_mbufs(vmxnet3_cmd_ring_t *ring)
+vmxnet3_tx_cmd_ring_release_mbufs(vmxnet3_cmd_ring_t *ring)
{
while (ring->next2comp != ring->next2fill) {
- /* No need to worry about tx desc ownership, device is quiesced by now. */
+ /* No need to worry about desc ownership, device is quiesced by now. */
vmxnet3_buf_info_t *buf_info = ring->buf_info + ring->next2comp;
if (buf_info->m) {
@@ -158,9 +158,27 @@ vmxnet3_cmd_ring_release_mbufs(vmxnet3_cmd_ring_t *ring)
}
static void
+vmxnet3_rx_cmd_ring_release_mbufs(vmxnet3_cmd_ring_t *ring)
+{
+ uint32_t i;
+
+ for (i = 0; i < ring->size; i++) {
+ /* No need to worry about desc ownership, device is quiesced by now. */
+ vmxnet3_buf_info_t *buf_info = &ring->buf_info[i];
+
+ if (buf_info->m) {
+ rte_pktmbuf_free_seg(buf_info->m);
+ buf_info->m = NULL;
+ buf_info->bufPA = 0;
+ buf_info->len = 0;
+ }
+ vmxnet3_cmd_ring_adv_next2comp(ring);
+ }
+}
+
+static void
vmxnet3_cmd_ring_release(vmxnet3_cmd_ring_t *ring)
{
- vmxnet3_cmd_ring_release_mbufs(ring);
rte_free(ring->buf_info);
ring->buf_info = NULL;
}
@@ -172,6 +190,8 @@ vmxnet3_dev_tx_queue_release(void *txq)
vmxnet3_tx_queue_t *tq = txq;
if (tq != NULL) {
+ /* Release mbufs */
+ vmxnet3_tx_cmd_ring_release_mbufs(&tq->cmd_ring);
/* Release the cmd_ring */
vmxnet3_cmd_ring_release(&tq->cmd_ring);
}
@@ -184,6 +204,10 @@ vmxnet3_dev_rx_queue_release(void *rxq)
vmxnet3_rx_queue_t *rq = rxq;
if (rq != NULL) {
+ /* Release mbufs */
+ for (i = 0; i < VMXNET3_RX_CMDRING_SIZE; i++)
+ vmxnet3_rx_cmd_ring_release_mbufs(&rq->cmd_ring[i]);
+
/* Release both the cmd_rings */
for (i = 0; i < VMXNET3_RX_CMDRING_SIZE; i++)
vmxnet3_cmd_ring_release(&rq->cmd_ring[i]);
@@ -201,7 +225,7 @@ vmxnet3_dev_tx_queue_reset(void *txq)
if (tq != NULL) {
/* Release the cmd_ring mbufs */
- vmxnet3_cmd_ring_release_mbufs(&tq->cmd_ring);
+ vmxnet3_tx_cmd_ring_release_mbufs(&tq->cmd_ring);
}
/* Tx vmxnet rings structure initialization*/
@@ -230,7 +254,7 @@ vmxnet3_dev_rx_queue_reset(void *rxq)
if (rq != NULL) {
/* Release both the cmd_rings mbufs */
for (i = 0; i < VMXNET3_RX_CMDRING_SIZE; i++)
- vmxnet3_cmd_ring_release_mbufs(&rq->cmd_ring[i]);
+ vmxnet3_rx_cmd_ring_release_mbufs(&rq->cmd_ring[i]);
}
ring0 = &rq->cmd_ring[0];
--
1.9.0
next prev parent reply other threads:[~2016-11-15 11:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-15 11:40 [dpdk-stable] patch 'eal/arm: fix file descriptor leak when getting CPU features' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'eal/ppc: " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'lpm: fix freeing memory' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'pci: fix probing error if no driver found' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'net/ixgbe: fix VF registers' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'app/testpmd: fix DCB configuration' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'net/i40e: " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'net/enic: fix max packet length check' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'net/mlx5: fix handling of small mbuf sizes' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'net/mlx5: fix Rx checksum macros' " Yuanhan Liu
2016-11-15 11:40 ` Yuanhan Liu [this message]
2016-11-15 11:40 ` [dpdk-stable] patch 'mempool: fix leak if populate fails' " Yuanhan Liu
2016-11-15 11:40 ` [dpdk-stable] patch 'net/virtio: revert fix restart' " Yuanhan Liu
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