* [PATCH bpf v2] xsk: inherit need_wakeup flag for shared sockets
@ 2022-09-20 11:58 Jalal Mostafa
2022-09-20 13:34 ` Magnus Karlsson
0 siblings, 1 reply; 5+ messages in thread
From: Jalal Mostafa @ 2022-09-20 11:58 UTC (permalink / raw)
To: magnus.karlsson, netdev, bpf
Cc: bjorn, magnus.karlsson, maciej.fijalkowski, jonathan.lemon, davem,
edumazet, kuba, pabeni, daniel, linux-kernel, jalal.mostafa
The flag for need_wakeup is not set for xsks with `XDP_SHARED_UMEM`
flag and of different queue ids and/or devices. They should inherit
the flag from the first socket buffer pool since no flags can be
specified once `XDP_SHARED_UMEM` is specified. The issue is fixed
by creating a new function `xp_create_and_assign_umem_shared` to
create xsk_buff_pool for xsks with the shared umem flag set.
Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
Signed-off-by: Jalal Mostafa <jalal.a.mostapha@gmail.com>
---
include/net/xsk_buff_pool.h | 2 +-
net/xdp/xsk.c | 4 ++--
net/xdp/xsk_buff_pool.c | 5 +++--
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
index 647722e847b4..f787c3f524b0 100644
--- a/include/net/xsk_buff_pool.h
+++ b/include/net/xsk_buff_pool.h
@@ -95,7 +95,7 @@ struct xsk_buff_pool *xp_create_and_assign_umem(struct xdp_sock *xs,
struct xdp_umem *umem);
int xp_assign_dev(struct xsk_buff_pool *pool, struct net_device *dev,
u16 queue_id, u16 flags);
-int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
+int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
struct net_device *dev, u16 queue_id);
int xp_alloc_tx_descs(struct xsk_buff_pool *pool, struct xdp_sock *xs);
void xp_destroy(struct xsk_buff_pool *pool);
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 5b4ce6ba1bc7..7bada4e8460b 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -954,8 +954,8 @@ static int xsk_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
goto out_unlock;
}
- err = xp_assign_dev_shared(xs->pool, umem_xs->umem,
- dev, qid);
+ err = xp_assign_dev_shared(xs->pool, umem_xs, dev,
+ qid);
if (err) {
xp_destroy(xs->pool);
xs->pool = NULL;
diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
index a71a8c6edf55..ed6c71826d31 100644
--- a/net/xdp/xsk_buff_pool.c
+++ b/net/xdp/xsk_buff_pool.c
@@ -212,17 +212,18 @@ int xp_assign_dev(struct xsk_buff_pool *pool,
return err;
}
-int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
+int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
struct net_device *dev, u16 queue_id)
{
u16 flags;
+ struct xdp_umem *umem = umem_xs->umem;
/* One fill and completion ring required for each queue id. */
if (!pool->fq || !pool->cq)
return -EINVAL;
flags = umem->zc ? XDP_ZEROCOPY : XDP_COPY;
- if (pool->uses_need_wakeup)
+ if (umem_xs->pool->uses_need_wakeup)
flags |= XDP_USE_NEED_WAKEUP;
return xp_assign_dev(pool, dev, queue_id, flags);
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH bpf v2] xsk: inherit need_wakeup flag for shared sockets
2022-09-20 11:58 [PATCH bpf v2] xsk: inherit need_wakeup flag for shared sockets Jalal Mostafa
@ 2022-09-20 13:34 ` Magnus Karlsson
2022-09-21 12:16 ` Maciej Fijalkowski
0 siblings, 1 reply; 5+ messages in thread
From: Magnus Karlsson @ 2022-09-20 13:34 UTC (permalink / raw)
To: Jalal Mostafa
Cc: netdev, bpf, bjorn, magnus.karlsson, maciej.fijalkowski,
jonathan.lemon, davem, edumazet, kuba, pabeni, daniel,
linux-kernel, jalal.mostafa
On Tue, Sep 20, 2022 at 1:58 PM Jalal Mostafa
<jalal.a.mostapha@gmail.com> wrote:
>
> The flag for need_wakeup is not set for xsks with `XDP_SHARED_UMEM`
> flag and of different queue ids and/or devices. They should inherit
> the flag from the first socket buffer pool since no flags can be
> specified once `XDP_SHARED_UMEM` is specified. The issue is fixed
> by creating a new function `xp_create_and_assign_umem_shared` to
> create xsk_buff_pool for xsks with the shared umem flag set.
Thanks!
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
> Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
> Signed-off-by: Jalal Mostafa <jalal.a.mostapha@gmail.com>
> ---
> include/net/xsk_buff_pool.h | 2 +-
> net/xdp/xsk.c | 4 ++--
> net/xdp/xsk_buff_pool.c | 5 +++--
> 3 files changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
> index 647722e847b4..f787c3f524b0 100644
> --- a/include/net/xsk_buff_pool.h
> +++ b/include/net/xsk_buff_pool.h
> @@ -95,7 +95,7 @@ struct xsk_buff_pool *xp_create_and_assign_umem(struct xdp_sock *xs,
> struct xdp_umem *umem);
> int xp_assign_dev(struct xsk_buff_pool *pool, struct net_device *dev,
> u16 queue_id, u16 flags);
> -int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
> +int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
> struct net_device *dev, u16 queue_id);
> int xp_alloc_tx_descs(struct xsk_buff_pool *pool, struct xdp_sock *xs);
> void xp_destroy(struct xsk_buff_pool *pool);
> diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
> index 5b4ce6ba1bc7..7bada4e8460b 100644
> --- a/net/xdp/xsk.c
> +++ b/net/xdp/xsk.c
> @@ -954,8 +954,8 @@ static int xsk_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
> goto out_unlock;
> }
>
> - err = xp_assign_dev_shared(xs->pool, umem_xs->umem,
> - dev, qid);
> + err = xp_assign_dev_shared(xs->pool, umem_xs, dev,
> + qid);
> if (err) {
> xp_destroy(xs->pool);
> xs->pool = NULL;
> diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
> index a71a8c6edf55..ed6c71826d31 100644
> --- a/net/xdp/xsk_buff_pool.c
> +++ b/net/xdp/xsk_buff_pool.c
> @@ -212,17 +212,18 @@ int xp_assign_dev(struct xsk_buff_pool *pool,
> return err;
> }
>
> -int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
> +int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
> struct net_device *dev, u16 queue_id)
> {
> u16 flags;
> + struct xdp_umem *umem = umem_xs->umem;
>
> /* One fill and completion ring required for each queue id. */
> if (!pool->fq || !pool->cq)
> return -EINVAL;
>
> flags = umem->zc ? XDP_ZEROCOPY : XDP_COPY;
> - if (pool->uses_need_wakeup)
> + if (umem_xs->pool->uses_need_wakeup)
> flags |= XDP_USE_NEED_WAKEUP;
>
> return xp_assign_dev(pool, dev, queue_id, flags);
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH bpf v2] xsk: inherit need_wakeup flag for shared sockets
2022-09-20 13:34 ` Magnus Karlsson
@ 2022-09-21 12:16 ` Maciej Fijalkowski
2022-09-21 13:57 ` [PATCH bpf v3] " Jalal Mostafa
0 siblings, 1 reply; 5+ messages in thread
From: Maciej Fijalkowski @ 2022-09-21 12:16 UTC (permalink / raw)
To: Magnus Karlsson
Cc: Jalal Mostafa, netdev, bpf, bjorn, magnus.karlsson,
jonathan.lemon, davem, edumazet, kuba, pabeni, daniel,
linux-kernel, jalal.mostafa
On Tue, Sep 20, 2022 at 03:34:19PM +0200, Magnus Karlsson wrote:
> On Tue, Sep 20, 2022 at 1:58 PM Jalal Mostafa
> <jalal.a.mostapha@gmail.com> wrote:
> >
> > The flag for need_wakeup is not set for xsks with `XDP_SHARED_UMEM`
> > flag and of different queue ids and/or devices. They should inherit
> > the flag from the first socket buffer pool since no flags can be
> > specified once `XDP_SHARED_UMEM` is specified. The issue is fixed
> > by creating a new function `xp_create_and_assign_umem_shared` to
> > create xsk_buff_pool for xsks with the shared umem flag set.
Hi Jalal,
Please update commit msg and remove reference to the new function that you
were creating on v1.
>
> Thanks!
>
> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
>
> > Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
> > Signed-off-by: Jalal Mostafa <jalal.a.mostapha@gmail.com>
> > ---
> > include/net/xsk_buff_pool.h | 2 +-
> > net/xdp/xsk.c | 4 ++--
> > net/xdp/xsk_buff_pool.c | 5 +++--
> > 3 files changed, 6 insertions(+), 5 deletions(-)
> >
> > diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
> > index 647722e847b4..f787c3f524b0 100644
> > --- a/include/net/xsk_buff_pool.h
> > +++ b/include/net/xsk_buff_pool.h
> > @@ -95,7 +95,7 @@ struct xsk_buff_pool *xp_create_and_assign_umem(struct xdp_sock *xs,
> > struct xdp_umem *umem);
> > int xp_assign_dev(struct xsk_buff_pool *pool, struct net_device *dev,
> > u16 queue_id, u16 flags);
> > -int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
> > +int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
> > struct net_device *dev, u16 queue_id);
> > int xp_alloc_tx_descs(struct xsk_buff_pool *pool, struct xdp_sock *xs);
> > void xp_destroy(struct xsk_buff_pool *pool);
> > diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
> > index 5b4ce6ba1bc7..7bada4e8460b 100644
> > --- a/net/xdp/xsk.c
> > +++ b/net/xdp/xsk.c
> > @@ -954,8 +954,8 @@ static int xsk_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
> > goto out_unlock;
> > }
> >
> > - err = xp_assign_dev_shared(xs->pool, umem_xs->umem,
> > - dev, qid);
> > + err = xp_assign_dev_shared(xs->pool, umem_xs, dev,
> > + qid);
> > if (err) {
> > xp_destroy(xs->pool);
> > xs->pool = NULL;
> > diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
> > index a71a8c6edf55..ed6c71826d31 100644
> > --- a/net/xdp/xsk_buff_pool.c
> > +++ b/net/xdp/xsk_buff_pool.c
> > @@ -212,17 +212,18 @@ int xp_assign_dev(struct xsk_buff_pool *pool,
> > return err;
> > }
> >
> > -int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
> > +int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
> > struct net_device *dev, u16 queue_id)
> > {
> > u16 flags;
> > + struct xdp_umem *umem = umem_xs->umem;
> >
> > /* One fill and completion ring required for each queue id. */
> > if (!pool->fq || !pool->cq)
> > return -EINVAL;
> >
> > flags = umem->zc ? XDP_ZEROCOPY : XDP_COPY;
> > - if (pool->uses_need_wakeup)
> > + if (umem_xs->pool->uses_need_wakeup)
> > flags |= XDP_USE_NEED_WAKEUP;
> >
> > return xp_assign_dev(pool, dev, queue_id, flags);
> > --
> > 2.34.1
> >
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH bpf v3] xsk: inherit need_wakeup flag for shared sockets
2022-09-21 12:16 ` Maciej Fijalkowski
@ 2022-09-21 13:57 ` Jalal Mostafa
2022-09-22 15:20 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 5+ messages in thread
From: Jalal Mostafa @ 2022-09-21 13:57 UTC (permalink / raw)
To: maciej.fijalkowski, netdev, bpf
Cc: bjorn, magnus.karlsson, jonathan.lemon, davem, edumazet, kuba,
pabeni, daniel, john.fastabend, hawk, ast, linux-kernel,
jalal.mostafa, jalal.a.mostapha
The flag for need_wakeup is not set for xsks with `XDP_SHARED_UMEM`
flag and of different queue ids and/or devices. They should inherit
the flag from the first socket buffer pool since no flags can be
specified once `XDP_SHARED_UMEM` is specified.
Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
Signed-off-by: Jalal Mostafa <jalal.a.mostapha@gmail.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
---
include/net/xsk_buff_pool.h | 2 +-
net/xdp/xsk.c | 4 ++--
net/xdp/xsk_buff_pool.c | 5 +++--
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
index 647722e847b4..f787c3f524b0 100644
--- a/include/net/xsk_buff_pool.h
+++ b/include/net/xsk_buff_pool.h
@@ -95,7 +95,7 @@ struct xsk_buff_pool *xp_create_and_assign_umem(struct xdp_sock *xs,
struct xdp_umem *umem);
int xp_assign_dev(struct xsk_buff_pool *pool, struct net_device *dev,
u16 queue_id, u16 flags);
-int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
+int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
struct net_device *dev, u16 queue_id);
int xp_alloc_tx_descs(struct xsk_buff_pool *pool, struct xdp_sock *xs);
void xp_destroy(struct xsk_buff_pool *pool);
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 5b4ce6ba1bc7..7bada4e8460b 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -954,8 +954,8 @@ static int xsk_bind(struct socket *sock, struct sockaddr *addr, int addr_len)
goto out_unlock;
}
- err = xp_assign_dev_shared(xs->pool, umem_xs->umem,
- dev, qid);
+ err = xp_assign_dev_shared(xs->pool, umem_xs, dev,
+ qid);
if (err) {
xp_destroy(xs->pool);
xs->pool = NULL;
diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
index a71a8c6edf55..ed6c71826d31 100644
--- a/net/xdp/xsk_buff_pool.c
+++ b/net/xdp/xsk_buff_pool.c
@@ -212,17 +212,18 @@ int xp_assign_dev(struct xsk_buff_pool *pool,
return err;
}
-int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_umem *umem,
+int xp_assign_dev_shared(struct xsk_buff_pool *pool, struct xdp_sock *umem_xs,
struct net_device *dev, u16 queue_id)
{
u16 flags;
+ struct xdp_umem *umem = umem_xs->umem;
/* One fill and completion ring required for each queue id. */
if (!pool->fq || !pool->cq)
return -EINVAL;
flags = umem->zc ? XDP_ZEROCOPY : XDP_COPY;
- if (pool->uses_need_wakeup)
+ if (umem_xs->pool->uses_need_wakeup)
flags |= XDP_USE_NEED_WAKEUP;
return xp_assign_dev(pool, dev, queue_id, flags);
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH bpf v3] xsk: inherit need_wakeup flag for shared sockets
2022-09-21 13:57 ` [PATCH bpf v3] " Jalal Mostafa
@ 2022-09-22 15:20 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 5+ messages in thread
From: patchwork-bot+netdevbpf @ 2022-09-22 15:20 UTC (permalink / raw)
To: Jalal Mostafa
Cc: maciej.fijalkowski, netdev, bpf, bjorn, magnus.karlsson,
jonathan.lemon, davem, edumazet, kuba, pabeni, daniel,
john.fastabend, hawk, ast, linux-kernel, jalal.mostafa
Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@iogearbox.net>:
On Wed, 21 Sep 2022 13:57:01 +0000 you wrote:
> The flag for need_wakeup is not set for xsks with `XDP_SHARED_UMEM`
> flag and of different queue ids and/or devices. They should inherit
> the flag from the first socket buffer pool since no flags can be
> specified once `XDP_SHARED_UMEM` is specified.
>
> Fixes: b5aea28dca134 ("xsk: Add shared umem support between queue ids")
>
> [...]
Here is the summary with links:
- [bpf,v3] xsk: inherit need_wakeup flag for shared sockets
https://git.kernel.org/bpf/bpf/c/60240bc26114
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 5+ messages in thread
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Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2022-09-20 11:58 [PATCH bpf v2] xsk: inherit need_wakeup flag for shared sockets Jalal Mostafa
2022-09-20 13:34 ` Magnus Karlsson
2022-09-21 12:16 ` Maciej Fijalkowski
2022-09-21 13:57 ` [PATCH bpf v3] " Jalal Mostafa
2022-09-22 15:20 ` patchwork-bot+netdevbpf
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