Re: [dpdk-dev] [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region cleanup routine

[Slava Ovsiienko <viacheslavo@mellanox.com>]

> -----Original Message-----
> From: Shahaf Shuler
> Sent: Sunday, April 14, 2019 9:58
> To: Yongseok Koh <yskoh@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>
> Cc: dev <dev@dpdk.org>; stable@dpdk.org
> Subject: RE: [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region cleanup
> routine
> 
> Friday, April 12, 2019 8:55 PM, Yongseok Koh:
> > Subject: Re: [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region
> > cleanup routine
> >
> >
> > > On Apr 12, 2019, at 8:45 AM, Viacheslav Ovsiienko
> > <viacheslavo@mellanox.com> wrote:
> > >
> > > mlx5 driver has a global list of Memory Regions created by device,
> > > and there is a ml5_mr_release() routine which makes a memory cleanup
> > > at device closing. The head of device MR list was fetched outside
> > > the rwlock protected section. Also some noticed typos are fixed.
> > >
> > > Fixes: 974f1e7ef146 ("net/mlx5: add new memory region support")
> > > Cc: stable@dpdk.org
> > >
> > > Signed-off-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
> > > ---
> >
> > Nice catch, Slava
> > Can you please submit the same fix for mlx4?
> >
> > Acked-by: Yongseok Koh <yskoh@mellanox.com>
> 
> Slava - please merge both mlx4 and mlx5 into the same patch.
> Keep Koh's acked-by.
> 
> I will take the v2.
There are some troubles with passing check-log script for mlx4/mlx5 merged patch.
So, I prepared the separated patch for mlx4 with right headline and fix reference.
http://patches.dpdk.org/patch/52791/
If you don't mind - please apply both (for mlx4 and mlx5) patches. Thanks.

With best regards,
Slava



> 
> >
> > Thanks
> >
> > > drivers/net/mlx5/mlx5_mr.c | 13 +++++++------
> > > 1 file changed, 7 insertions(+), 6 deletions(-)
> > >
> > > diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c
> > > index 44b6591..a3732d4 100644
> > > --- a/drivers/net/mlx5/mlx5_mr.c
> > > +++ b/drivers/net/mlx5/mlx5_mr.c
> > > @@ -466,7 +466,7 @@ struct mr_update_mp_data { }
> > >
> > > /**
> > > - * Releass resources of detached MR having no online entry.
> > > + * Release resources of detached MR having no online entry.
> > >  *
> > >  * @param dev
> > >  *   Pointer to Ethernet device.
> > > @@ -516,7 +516,7 @@ struct mr_update_mp_data { }
> > >
> > > /**
> > > - * Create a new global Memroy Region (MR) for a missing virtual
> address.
> > > + * Create a new global Memory Region (MR) for a missing virtual
> address.
> > >  * This API should be called on a secondary process, then a request
> > > is sent to
> > >  * the primary process in order to create a MR for the address. As
> > > the global MR
> > >  * list is on the shared memory, following LKey lookup should
> > > succeed unless the @@ -562,7 +562,7 @@ struct mr_update_mp_data { }
> > >
> > > /**
> > > - * Create a new global Memroy Region (MR) for a missing virtual
> address.
> > > + * Create a new global Memory Region (MR) for a missing virtual
> address.
> > >  * Register entire virtually contiguous memory chunk around the address.
> > >  * This must be called from the primary process.
> > >  *
> > > @@ -673,7 +673,7 @@ struct mr_update_mp_data {
> > > 	bmp_mem = RTE_PTR_ALIGN_CEIL(mr + 1, RTE_CACHE_LINE_SIZE);
> > > 	mr->ms_bmp = rte_bitmap_init(ms_n, bmp_mem, bmp_size);
> > > 	if (mr->ms_bmp == NULL) {
> > > -		DEBUG("port %u unable to initialize bitamp for a new MR of"
> > > +		DEBUG("port %u unable to initialize bitmap for a new MR of"
> > > 		      " address (%p).",
> > > 		      dev->data->port_id, (void *)addr);
> > > 		rte_errno = EINVAL;
> > > @@ -811,7 +811,7 @@ struct mr_update_mp_data { }
> > >
> > > /**
> > > - * Create a new global Memroy Region (MR) for a missing virtual
> address.
> > > + * Create a new global Memory Region (MR) for a missing virtual
> address.
> > >  * This can be called from primary and secondary process.
> > >  *
> > >  * @param dev
> > > @@ -1600,7 +1600,7 @@ struct mr_update_mp_data {
> > > mlx5_mr_release(struct rte_eth_dev *dev) {
> > > 	struct mlx5_priv *priv = dev->data->dev_private;
> > > -	struct mlx5_mr *mr_next = LIST_FIRST(&priv->mr.mr_list);
> > > +	struct mlx5_mr *mr_next;
> > >
> > > 	/* Remove from memory callback device list. */
> > > 	rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
> > > @@ -1610,6 +1610,7 @@ struct mr_update_mp_data {
> > > 		mlx5_mr_dump_dev(dev);
> > > 	rte_rwlock_write_lock(&priv->mr.rwlock);
> > > 	/* Detach from MR list and move to free list. */
> > > +	mr_next = LIST_FIRST(&priv->mr.mr_list);
> > > 	while (mr_next != NULL) {
> > > 		struct mlx5_mr *mr = mr_next;
> > >
> > > --
> > > 1.8.3.1
> > >