* [PATCH] net/i40e: avx512 fast-free path bug fix
@ 2023-03-07 19:32 Kamalakshitha Aligeri
2023-03-07 20:26 ` Morten Brørup
0 siblings, 1 reply; 3+ messages in thread
From: Kamalakshitha Aligeri @ 2023-03-07 19:32 UTC (permalink / raw)
To: Yuying.Zhang, beilei.xing, leyi.rong, ruifeng.wang, feifei.wang2; +Cc: nd, dev
In i40e_tx_free_bufs_avx512 fast-free path, when cache is NULL,
non fast-free path is being executed. Fixed the bug by calling
rte_mempool_generic_put API that handles the cache==NULL case.
Fixes: 5171b4ee6b6b ("net/i40e: optimize Tx by using AVX512")
Cc: leyi.rong@intel.com
Cc: stable@dpdk.org
Signed-off-by: Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Feifei Wang <feifei.wang2@arm.com>
---
.mailmap | 1 +
drivers/net/i40e/i40e_rxtx_vec_avx512.c | 12 ++++--------
2 files changed, 5 insertions(+), 8 deletions(-)
diff --git a/.mailmap b/.mailmap
index a9f4f28fba..2581d0efe7 100644
--- a/.mailmap
+++ b/.mailmap
@@ -677,6 +677,7 @@ Kai Ji <kai.ji@intel.com>
Kaiwen Deng <kaiwenx.deng@intel.com>
Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Kamalakannan R <kamalakannan.r@intel.com>
+Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
Kamil Bednarczyk <kamil.bednarczyk@intel.com>
Kamil Chalupnik <kamilx.chalupnik@intel.com>
Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
diff --git a/drivers/net/i40e/i40e_rxtx_vec_avx512.c b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
index d3c7bfd121..ad0893324d 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_avx512.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
@@ -783,16 +783,13 @@ i40e_tx_free_bufs_avx512(struct i40e_tx_queue *txq)
struct rte_mempool_cache *cache = rte_mempool_default_cache(mp,
rte_lcore_id());
- if (!cache || cache->len == 0)
- goto normal;
-
- cache_objs = &cache->objs[cache->len];
-
- if (n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
- rte_mempool_ops_enqueue_bulk(mp, (void *)txep, n);
+ if (!cache || n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
+ rte_mempool_generic_put(mp, (void *)txep, n, cache);
goto done;
}
+ cache_objs = &cache->objs[cache->len];
+
/* The cache follows the following algorithm
* 1. Add the objects to the cache
* 2. Anything greater than the cache min value (if it
@@ -824,7 +821,6 @@ i40e_tx_free_bufs_avx512(struct i40e_tx_queue *txq)
goto done;
}
-normal:
m = rte_pktmbuf_prefree_seg(txep[0].mbuf);
if (likely(m)) {
free[0] = m;
--
2.25.1
^ permalink raw reply [flat|nested] 3+ messages in thread* RE: [PATCH] net/i40e: avx512 fast-free path bug fix
2023-03-07 19:32 [PATCH] net/i40e: avx512 fast-free path bug fix Kamalakshitha Aligeri
@ 2023-03-07 20:26 ` Morten Brørup
2023-03-13 6:52 ` Zhang, Qi Z
0 siblings, 1 reply; 3+ messages in thread
From: Morten Brørup @ 2023-03-07 20:26 UTC (permalink / raw)
To: Kamalakshitha Aligeri, Yuying.Zhang, beilei.xing, leyi.rong,
ruifeng.wang, feifei.wang2
Cc: nd, dev
> From: Kamalakshitha Aligeri [mailto:kamalakshitha.aligeri@arm.com]
> Sent: Tuesday, 7 March 2023 20.32
>
> In i40e_tx_free_bufs_avx512 fast-free path, when cache is NULL,
> non fast-free path is being executed. Fixed the bug by calling
> rte_mempool_generic_put API that handles the cache==NULL case.
>
> Fixes: 5171b4ee6b6b ("net/i40e: optimize Tx by using AVX512")
> Cc: leyi.rong@intel.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
> Reviewed-by: Feifei Wang <feifei.wang2@arm.com>
> ---
> .mailmap | 1 +
> drivers/net/i40e/i40e_rxtx_vec_avx512.c | 12 ++++--------
> 2 files changed, 5 insertions(+), 8 deletions(-)
>
> diff --git a/.mailmap b/.mailmap
> index a9f4f28fba..2581d0efe7 100644
> --- a/.mailmap
> +++ b/.mailmap
> @@ -677,6 +677,7 @@ Kai Ji <kai.ji@intel.com>
> Kaiwen Deng <kaiwenx.deng@intel.com>
> Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
> Kamalakannan R <kamalakannan.r@intel.com>
> +Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
> Kamil Bednarczyk <kamil.bednarczyk@intel.com>
> Kamil Chalupnik <kamilx.chalupnik@intel.com>
> Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
> diff --git a/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> index d3c7bfd121..ad0893324d 100644
> --- a/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> +++ b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> @@ -783,16 +783,13 @@ i40e_tx_free_bufs_avx512(struct i40e_tx_queue
> *txq)
> struct rte_mempool_cache *cache =
> rte_mempool_default_cache(mp,
> rte_lcore_id());
>
> - if (!cache || cache->len == 0)
> - goto normal;
> -
> - cache_objs = &cache->objs[cache->len];
> -
> - if (n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
> - rte_mempool_ops_enqueue_bulk(mp, (void *)txep, n);
> + if (!cache || n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
> + rte_mempool_generic_put(mp, (void *)txep, n, cache);
> goto done;
> }
>
> + cache_objs = &cache->objs[cache->len];
> +
> /* The cache follows the following algorithm
> * 1. Add the objects to the cache
> * 2. Anything greater than the cache min value (if it
> @@ -824,7 +821,6 @@ i40e_tx_free_bufs_avx512(struct i40e_tx_queue *txq)
> goto done;
> }
>
> -normal:
> m = rte_pktmbuf_prefree_seg(txep[0].mbuf);
> if (likely(m)) {
> free[0] = m;
> --
> 2.25.1
>
An improvement of the copy-paste code we are aiming to replace by proper use of the mempool API.
But still an improvement.
Acked-by: Morten Brørup <mb@smartsharesystems.com>
^ permalink raw reply [flat|nested] 3+ messages in thread* RE: [PATCH] net/i40e: avx512 fast-free path bug fix
2023-03-07 20:26 ` Morten Brørup
@ 2023-03-13 6:52 ` Zhang, Qi Z
0 siblings, 0 replies; 3+ messages in thread
From: Zhang, Qi Z @ 2023-03-13 6:52 UTC (permalink / raw)
To: Morten Brørup, Kamalakshitha Aligeri, Zhang, Yuying, Xing,
Beilei, Rong, Leyi, ruifeng.wang, feifei.wang2
Cc: nd, dev
> -----Original Message-----
> From: Morten Brørup <mb@smartsharesystems.com>
> Sent: Wednesday, March 8, 2023 4:26 AM
> To: Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>; Zhang, Yuying
> <yuying.zhang@intel.com>; Xing, Beilei <beilei.xing@intel.com>; Rong, Leyi
> <leyi.rong@intel.com>; ruifeng.wang@arm.com; feifei.wang2@arm.com
> Cc: nd@arm.com; dev@dpdk.org
> Subject: RE: [PATCH] net/i40e: avx512 fast-free path bug fix
>
> > From: Kamalakshitha Aligeri [mailto:kamalakshitha.aligeri@arm.com]
> > Sent: Tuesday, 7 March 2023 20.32
> >
> > In i40e_tx_free_bufs_avx512 fast-free path, when cache is NULL, non
> > fast-free path is being executed. Fixed the bug by calling
> > rte_mempool_generic_put API that handles the cache==NULL case.
> >
> > Fixes: 5171b4ee6b6b ("net/i40e: optimize Tx by using AVX512")
> > Cc: leyi.rong@intel.com
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
> > Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
> > Reviewed-by: Feifei Wang <feifei.wang2@arm.com>
> > ---
> > .mailmap | 1 +
> > drivers/net/i40e/i40e_rxtx_vec_avx512.c | 12 ++++--------
> > 2 files changed, 5 insertions(+), 8 deletions(-)
> >
> > diff --git a/.mailmap b/.mailmap
> > index a9f4f28fba..2581d0efe7 100644
> > --- a/.mailmap
> > +++ b/.mailmap
> > @@ -677,6 +677,7 @@ Kai Ji <kai.ji@intel.com> Kaiwen Deng
> > <kaiwenx.deng@intel.com> Kalesh AP
> > <kalesh-anakkur.purayil@broadcom.com>
> > Kamalakannan R <kamalakannan.r@intel.com>
> > +Kamalakshitha Aligeri <kamalakshitha.aligeri@arm.com>
> > Kamil Bednarczyk <kamil.bednarczyk@intel.com> Kamil Chalupnik
> > <kamilx.chalupnik@intel.com> Kamil Rytarowski
> > <kamil.rytarowski@caviumnetworks.com>
> > diff --git a/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> > b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> > index d3c7bfd121..ad0893324d 100644
> > --- a/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> > +++ b/drivers/net/i40e/i40e_rxtx_vec_avx512.c
> > @@ -783,16 +783,13 @@ i40e_tx_free_bufs_avx512(struct i40e_tx_queue
> > *txq)
> > struct rte_mempool_cache *cache =
> > rte_mempool_default_cache(mp,
> > rte_lcore_id());
> >
> > - if (!cache || cache->len == 0)
> > - goto normal;
> > -
> > - cache_objs = &cache->objs[cache->len];
> > -
> > - if (n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
> > - rte_mempool_ops_enqueue_bulk(mp, (void *)txep,
> n);
> > + if (!cache || n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
> > + rte_mempool_generic_put(mp, (void *)txep, n,
> cache);
> > goto done;
> > }
> >
> > + cache_objs = &cache->objs[cache->len];
> > +
> > /* The cache follows the following algorithm
> > * 1. Add the objects to the cache
> > * 2. Anything greater than the cache min value (if it
> > @@ -824,7 +821,6 @@ i40e_tx_free_bufs_avx512(struct i40e_tx_queue
> *txq)
> > goto done;
> > }
> >
> > -normal:
> > m = rte_pktmbuf_prefree_seg(txep[0].mbuf);
> > if (likely(m)) {
> > free[0] = m;
> > --
> > 2.25.1
> >
>
> An improvement of the copy-paste code we are aiming to replace by proper
> use of the mempool API.
>
> But still an improvement.
>
> Acked-by: Morten Brørup <mb@smartsharesystems.com>
Applied to dpdk-next-net-intel.
Thanks
Qi
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-03-07 19:32 [PATCH] net/i40e: avx512 fast-free path bug fix Kamalakshitha Aligeri
2023-03-07 20:26 ` Morten Brørup
2023-03-13 6:52 ` Zhang, Qi Z
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