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From: Shahaf Shuler <shahafs@mellanox.com>
To: Yongseok Koh <yskoh@mellanox.com>, Slava Ovsiienko
<viacheslavo@mellanox.com>
CC: dev <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Thread-Topic: [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region cleanup
routine
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Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory
region cleanup routine
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Friday, April 12, 2019 8:55 PM, Yongseok Koh:
> Subject: Re: [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region cleanu=
p
> routine
>=20
>=20
> > 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>
> > ---
>=20
> Nice catch, Slava
> Can you please submit the same fix for mlx4?
>=20
> 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.
>=20
> Thanks
>=20
> > 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 addres=
s.
> > + * Create a new global Memory Region (MR) for a missing virtual addres=
s.
> > * 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 addres=
s.
> > + * Create a new global Memory Region (MR) for a missing virtual addres=
s.
> > * 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 =3D RTE_PTR_ALIGN_CEIL(mr + 1, RTE_CACHE_LINE_SIZE);
> > mr->ms_bmp =3D rte_bitmap_init(ms_n, bmp_mem, bmp_size);
> > if (mr->ms_bmp =3D=3D 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 =3D EINVAL;
> > @@ -811,7 +811,7 @@ struct mr_update_mp_data { }
> >
> > /**
> > - * Create a new global Memroy Region (MR) for a missing virtual addres=
s.
> > + * Create a new global Memory Region (MR) for a missing virtual addres=
s.
> > * 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 =3D dev->data->dev_private;
> > - struct mlx5_mr *mr_next =3D 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 =3D LIST_FIRST(&priv->mr.mr_list);
> > while (mr_next !=3D NULL) {
> > struct mlx5_mr *mr =3D mr_next;
> >
> > --
> > 1.8.3.1
> >
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From: Shahaf Shuler <shahafs@mellanox.com>
To: Yongseok Koh <yskoh@mellanox.com>, Slava Ovsiienko
<viacheslavo@mellanox.com>
CC: dev <dev@dpdk.org>, "stable@dpdk.org" <stable@dpdk.org>
Thread-Topic: [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region cleanup
routine
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Date: Sun, 14 Apr 2019 06:58:28 +0000
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Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory
region cleanup routine
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Message-ID: <20190414065828.spYyteiqfO-q3ubWebw5rId4XSuBuFUJEKzrU6Eptz4@z>
Friday, April 12, 2019 8:55 PM, Yongseok Koh:
> Subject: Re: [dpdk-stable] [PATCH 1/1] net/mlx5: fix memory region cleanu=
p
> routine
>=20
>=20
> > 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>
> > ---
>=20
> Nice catch, Slava
> Can you please submit the same fix for mlx4?
>=20
> 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.
>=20
> Thanks
>=20
> > 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 addres=
s.
> > + * Create a new global Memory Region (MR) for a missing virtual addres=
s.
> > * 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 addres=
s.
> > + * Create a new global Memory Region (MR) for a missing virtual addres=
s.
> > * 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 =3D RTE_PTR_ALIGN_CEIL(mr + 1, RTE_CACHE_LINE_SIZE);
> > mr->ms_bmp =3D rte_bitmap_init(ms_n, bmp_mem, bmp_size);
> > if (mr->ms_bmp =3D=3D 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 =3D EINVAL;
> > @@ -811,7 +811,7 @@ struct mr_update_mp_data { }
> >
> > /**
> > - * Create a new global Memroy Region (MR) for a missing virtual addres=
s.
> > + * Create a new global Memory Region (MR) for a missing virtual addres=
s.
> > * 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 =3D dev->data->dev_private;
> > - struct mlx5_mr *mr_next =3D 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 =3D LIST_FIRST(&priv->mr.mr_list);
> > while (mr_next !=3D NULL) {
> > struct mlx5_mr *mr =3D mr_next;
> >
> > --
> > 1.8.3.1
> >