From: Kevin Traynor <ktraynor@redhat.com>
To: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>, stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH 18.11] net/cxgbe: fix L2T leak in filter error and free path
Date: Fri, 4 Sep 2020 15:10:43 +0100 [thread overview]
Message-ID: <2cb588e2-b5ff-3d39-4dc7-650a57bb32d0@redhat.com> (raw)
In-Reply-To: <1599222867-25240-1-git-send-email-rahul.lakkireddy@chelsio.com>
On 04/09/2020 13:34, Rahul Lakkireddy wrote:
> [ upstream commit e0e1496be5fcabd31807ef9981c421963a9f8578 ]
>
> Free up Layer 2 Table (L2T) entry properly during filter create
> failure and filter delete.
>
> Fixes: 1decc62b1cbe ("net/cxgbe: add flow operations to offload VLAN actions")
>
> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
> ---
Thanks Rahul. There was a bit of fuzz when applying because I had
rebased below locally.
net/cxgbe: fix double MPS alloc by flow validate and create
[ upstream commit be5f4d5ced10f9d7edc8ba4b3f1d98b9d476d367 ]
Both commits are in the queue, please take a look and let me know if any
issue.
https://github.com/kevintraynor/dpdk-stable-queue/commit/b82919008c7462a0f2e117e65210754ccb7470f1
https://github.com/kevintraynor/dpdk-stable-queue/commit/7d482e8b14c7436f73e0497b6f1a0f00e0dc6eba
Kevin.
> drivers/net/cxgbe/cxgbe_filter.c | 29 ++++++++++++++++-------------
> 1 file changed, 16 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/net/cxgbe/cxgbe_filter.c b/drivers/net/cxgbe/cxgbe_filter.c
> index 489c23249..0b6629895 100644
> --- a/drivers/net/cxgbe/cxgbe_filter.c
> +++ b/drivers/net/cxgbe/cxgbe_filter.c
> @@ -276,6 +276,9 @@ static void clear_filter(struct filter_entry *f)
> if (f->clipt)
> cxgbe_clip_release(f->dev, f->clipt);
>
> + if (f->l2t)
> + cxgbe_l2t_release(f->l2t);
> +
> /* The zeroing of the filter rule below clears the filter valid,
> * pending, locked flags etc. so it's all we need for
> * this operation.
> @@ -711,19 +714,6 @@ static int set_filter_wr(struct rte_eth_dev *dev, unsigned int fidx)
> unsigned int port_id = ethdev2pinfo(dev)->port_id;
> int ret;
>
> - /*
> - * If the new filter requires loopback Destination MAC and/or VLAN
> - * rewriting then we need to allocate a Layer 2 Table (L2T) entry for
> - * the filter.
> - */
> - if (f->fs.newvlan) {
> - /* allocate L2T entry for new filter */
> - f->l2t = cxgbe_l2t_alloc_switching(f->dev, f->fs.vlan,
> - f->fs.eport, f->fs.dmac);
> - if (!f->l2t)
> - return -ENOMEM;
> - }
> -
> ctrlq = &adapter->sge.ctrlq[port_id];
> mbuf = rte_pktmbuf_alloc(ctrlq->mb_pool);
> if (!mbuf) {
> @@ -1015,6 +1005,19 @@ int cxgbe_set_filter(struct rte_eth_dev *dev, unsigned int filter_id,
> }
> }
>
> + /* If the new filter requires loopback Destination MAC and/or VLAN
> + * rewriting then we need to allocate a Layer 2 Table (L2T) entry for
> + * the filter.
> + */
> + if (f->fs.newvlan) {
> + f->l2t = cxgbe_l2t_alloc_switching(f->dev, f->fs.vlan,
> + f->fs.eport, f->fs.dmac);
> + if (!f->l2t) {
> + ret = -ENOMEM;
> + goto free_tid;
> + }
> + }
> +
> /*
> * Attempt to set the filter. If we don't succeed, we clear
> * it and return the failure.
>
next prev parent reply other threads:[~2020-09-04 14:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 12:34 Rahul Lakkireddy
2020-09-04 14:10 ` Kevin Traynor [this message]
2020-09-04 14:33 ` Rahul Lakkireddy
2020-09-04 14:59 ` Kevin Traynor
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