* [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option
@ 2020-03-04 11:40 Qi Zhang
2020-03-06 8:46 ` Ye Xiaolong
0 siblings, 1 reply; 5+ messages in thread
From: Qi Zhang @ 2020-03-04 11:40 UTC (permalink / raw)
To: beilei.xing, xiaolong.ye; +Cc: dev, Qi Zhang, stable
Remove CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC with below
consideration:
1. a default Rx path can always be selected by setting a proper
rx_free_thresh value at runtime, see
ice_check_rx_burst_bulk_alloc_preconditions.
2. its not a big deal to always reserve more space for desc ring.
"ring_size = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);"
3. Fixes a potential invalid memory access in ice_reset_rx_queue.
if CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is turned on while
ice_check_rx_burst_bulk_alloc_preconditions return fail.
below code will have problem.
for (i = 0; i < ICE_RX_MAX_BURST; ++i)
rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
Fixes: 50370662b727 ("net/ice: support device and queue ops")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
config/common_base | 1 -
doc/guides/nics/ice.rst | 4 ---
drivers/net/ice/ice_rxtx.c | 64 ++++++++++------------------------------------
3 files changed, 13 insertions(+), 56 deletions(-)
diff --git a/config/common_base b/config/common_base
index 7ca2f28b1..c31175f9d 100644
--- a/config/common_base
+++ b/config/common_base
@@ -337,7 +337,6 @@ CONFIG_RTE_LIBRTE_ICE_PMD=y
CONFIG_RTE_LIBRTE_ICE_DEBUG_RX=n
CONFIG_RTE_LIBRTE_ICE_DEBUG_TX=n
CONFIG_RTE_LIBRTE_ICE_DEBUG_TX_FREE=n
-CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC=y
CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC=n
# Compile burst-oriented IAVF PMD driver
diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
index cde3fd620..8af32dabf 100644
--- a/doc/guides/nics/ice.rst
+++ b/doc/guides/nics/ice.rst
@@ -54,10 +54,6 @@ Please note that enabling debugging options may affect system performance.
Toggle display of generic debugging messages.
-- ``CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC`` (default ``y``)
-
- Toggle bulk allocation for RX.
-
- ``CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC`` (default ``n``)
Toggle to use a 16-byte RX descriptor, by default the RX descriptor is 32 byte.
diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 60c411bfa..c7e5fc484 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -236,17 +236,15 @@ _ice_rx_queue_release_mbufs(struct ice_rx_queue *rxq)
rxq->sw_ring[i].mbuf = NULL;
}
}
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
- if (rxq->rx_nb_avail == 0)
- return;
- for (i = 0; i < rxq->rx_nb_avail; i++) {
- struct rte_mbuf *mbuf;
-
- mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
- rte_pktmbuf_free_seg(mbuf);
- }
- rxq->rx_nb_avail = 0;
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
+ if (rxq->rx_nb_avail == 0)
+ return;
+ for (i = 0; i < rxq->rx_nb_avail; i++) {
+ struct rte_mbuf *mbuf;
+
+ mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
+ rte_pktmbuf_free_seg(mbuf);
+ }
+ rxq->rx_nb_avail = 0;
}
static void
@@ -309,16 +307,10 @@ ice_switch_rx_queue(struct ice_hw *hw, uint16_t q_idx, bool on)
}
static inline int
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
ice_check_rx_burst_bulk_alloc_preconditions(struct ice_rx_queue *rxq)
-#else
-ice_check_rx_burst_bulk_alloc_preconditions
- (__rte_unused struct ice_rx_queue *rxq)
-#endif
{
int ret = 0;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
if (!(rxq->rx_free_thresh >= ICE_RX_MAX_BURST)) {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
"rxq->rx_free_thresh=%d, "
@@ -338,9 +330,6 @@ ice_check_rx_burst_bulk_alloc_preconditions
rxq->nb_rx_desc, rxq->rx_free_thresh);
ret = -EINVAL;
}
-#else
- ret = -EINVAL;
-#endif
return ret;
}
@@ -357,17 +346,11 @@ ice_reset_rx_queue(struct ice_rx_queue *rxq)
return;
}
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
- if (ice_check_rx_burst_bulk_alloc_preconditions(rxq) == 0)
- len = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);
- else
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
- len = rxq->nb_rx_desc;
+ len = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);
for (i = 0; i < len * sizeof(union ice_rx_flex_desc); i++)
((volatile char *)rxq->rx_ring)[i] = 0;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
for (i = 0; i < ICE_RX_MAX_BURST; ++i)
rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
@@ -375,7 +358,6 @@ ice_reset_rx_queue(struct ice_rx_queue *rxq)
rxq->rx_nb_avail = 0;
rxq->rx_next_avail = 0;
rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
rxq->rx_tail = 0;
rxq->nb_rx_hold = 0;
@@ -926,13 +908,11 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
/* Allocate the maximun number of RX ring hardware descriptor. */
len = ICE_MAX_RING_DESC;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
/**
* Allocating a little more memory because vectorized/bulk_alloc Rx
* functions doesn't check boundaries each time.
*/
len += ICE_RX_MAX_BURST;
-#endif
/* Allocate the maximum number of RX ring hardware descriptor. */
ring_size = sizeof(union ice_rx_flex_desc) * len;
@@ -952,11 +932,8 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
rxq->rx_ring_dma = rz->iova;
rxq->rx_ring = rz->addr;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
+ /* always reserve more for bulk alloc */
len = (uint16_t)(nb_desc + ICE_RX_MAX_BURST);
-#else
- len = nb_desc;
-#endif
/* Allocate the software ring. */
rxq->sw_ring = rte_zmalloc_socket(NULL,
@@ -977,17 +954,14 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
use_def_burst_func = ice_check_rx_burst_bulk_alloc_preconditions(rxq);
if (!use_def_burst_func) {
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
"satisfied. Rx Burst Bulk Alloc function will be "
"used on port=%d, queue=%d.",
rxq->port_id, rxq->queue_id);
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
} else {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
- "not satisfied, Scattered Rx is requested, "
- "or RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is "
- "not enabled on port=%d, queue=%d.",
+ "not satisfied, Scattered Rx is requested. "
+ "on port=%d, queue=%d.",
rxq->port_id, rxq->queue_id);
ad->rx_bulk_alloc_allowed = false;
}
@@ -1399,7 +1373,6 @@ ice_rxd_to_pkt_fields(struct rte_mbuf *mb,
#endif
}
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
#define ICE_LOOK_AHEAD 8
#if (ICE_LOOK_AHEAD != 8)
#error "PMD ICE: ICE_LOOK_AHEAD must be 8\n"
@@ -1620,15 +1593,6 @@ ice_recv_pkts_bulk_alloc(void *rx_queue,
return nb_rx;
}
-#else
-static uint16_t
-ice_recv_pkts_bulk_alloc(void __rte_unused *rx_queue,
- struct rte_mbuf __rte_unused **rx_pkts,
- uint16_t __rte_unused nb_pkts)
-{
- return 0;
-}
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
static uint16_t
ice_recv_scattered_pkts(void *rx_queue,
@@ -1872,9 +1836,7 @@ ice_dev_supported_ptypes_get(struct rte_eth_dev *dev)
ptypes = ptypes_os;
if (dev->rx_pkt_burst == ice_recv_pkts ||
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
dev->rx_pkt_burst == ice_recv_pkts_bulk_alloc ||
-#endif
dev->rx_pkt_burst == ice_recv_scattered_pkts)
return ptypes;
--
2.13.6
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option
2020-03-04 11:40 [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option Qi Zhang
@ 2020-03-06 8:46 ` Ye Xiaolong
2020-03-06 23:29 ` Zhang, Qi Z
2020-03-08 4:13 ` Ye Xiaolong
0 siblings, 2 replies; 5+ messages in thread
From: Ye Xiaolong @ 2020-03-06 8:46 UTC (permalink / raw)
To: Qi Zhang; +Cc: beilei.xing, dev, stable
Hi, Qi
Thanks for the cleanup.
On 03/04, Qi Zhang wrote:
>Remove CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC with below
>consideration:
>
>1. a default Rx path can always be selected by setting a proper
> rx_free_thresh value at runtime, see
> ice_check_rx_burst_bulk_alloc_preconditions.
>
>2. its not a big deal to always reserve more space for desc ring.
> "ring_size = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);"
>
>3. Fixes a potential invalid memory access in ice_reset_rx_queue.
> if CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is turned on while
> ice_check_rx_burst_bulk_alloc_preconditions return fail.
> below code will have problem.
>
> for (i = 0; i < ICE_RX_MAX_BURST; ++i)
> rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
>
>Fixes: 50370662b727 ("net/ice: support device and queue ops")
>Cc: stable@dpdk.org
>
>Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
>---
> config/common_base | 1 -
> doc/guides/nics/ice.rst | 4 ---
> drivers/net/ice/ice_rxtx.c | 64 ++++++++++------------------------------------
> 3 files changed, 13 insertions(+), 56 deletions(-)
>
>diff --git a/config/common_base b/config/common_base
>index 7ca2f28b1..c31175f9d 100644
>--- a/config/common_base
>+++ b/config/common_base
>@@ -337,7 +337,6 @@ CONFIG_RTE_LIBRTE_ICE_PMD=y
> CONFIG_RTE_LIBRTE_ICE_DEBUG_RX=n
> CONFIG_RTE_LIBRTE_ICE_DEBUG_TX=n
> CONFIG_RTE_LIBRTE_ICE_DEBUG_TX_FREE=n
>-CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC=y
> CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC=n
>
> # Compile burst-oriented IAVF PMD driver
>diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
>index cde3fd620..8af32dabf 100644
>--- a/doc/guides/nics/ice.rst
>+++ b/doc/guides/nics/ice.rst
>@@ -54,10 +54,6 @@ Please note that enabling debugging options may affect system performance.
>
> Toggle display of generic debugging messages.
>
>-- ``CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC`` (default ``y``)
>-
>- Toggle bulk allocation for RX.
>-
> - ``CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC`` (default ``n``)
>
> Toggle to use a 16-byte RX descriptor, by default the RX descriptor is 32 byte.
>diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
>index 60c411bfa..c7e5fc484 100644
>--- a/drivers/net/ice/ice_rxtx.c
>+++ b/drivers/net/ice/ice_rxtx.c
>@@ -236,17 +236,15 @@ _ice_rx_queue_release_mbufs(struct ice_rx_queue *rxq)
> rxq->sw_ring[i].mbuf = NULL;
> }
> }
>-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
>- if (rxq->rx_nb_avail == 0)
>- return;
>- for (i = 0; i < rxq->rx_nb_avail; i++) {
>- struct rte_mbuf *mbuf;
>-
>- mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
>- rte_pktmbuf_free_seg(mbuf);
>- }
>- rxq->rx_nb_avail = 0;
>-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
>+ if (rxq->rx_nb_avail == 0)
>+ return;
>+ for (i = 0; i < rxq->rx_nb_avail; i++) {
>+ struct rte_mbuf *mbuf;
>+
>+ mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
>+ rte_pktmbuf_free_seg(mbuf);
>+ }
How about just
for (i = 0; i < rxq->rx_nb_avail; i++)
rte_pktmbuf_free_seg(rxq->rx_stage[rxq->rx_next_avail + i]);
[snip]
For the rest,
Acked-by: Xiaolong Ye <xiaolong.ye@intel.com>
And can this cleanup be applied to i40e as well? I think it's good to have
less configurations generally.
Thanks,
Xiaolong
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option
2020-03-06 8:46 ` Ye Xiaolong
@ 2020-03-06 23:29 ` Zhang, Qi Z
2020-03-08 4:13 ` Ye Xiaolong
1 sibling, 0 replies; 5+ messages in thread
From: Zhang, Qi Z @ 2020-03-06 23:29 UTC (permalink / raw)
To: Ye, Xiaolong; +Cc: Xing, Beilei, dev, stable
> -----Original Message-----
> From: Ye, Xiaolong <xiaolong.ye@intel.com>
> Sent: Friday, March 6, 2020 4:46 PM
> To: Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: Xing, Beilei <beilei.xing@intel.com>; dev@dpdk.org; stable@dpdk.org
> Subject: Re: [PATCH] net/ice: remove bulk alloc compile option
>
> Hi, Qi
>
> Thanks for the cleanup.
>
> On 03/04, Qi Zhang wrote:
> >Remove CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC with below
> >consideration:
> >
> >1. a default Rx path can always be selected by setting a proper
> > rx_free_thresh value at runtime, see
> > ice_check_rx_burst_bulk_alloc_preconditions.
> >
> >2. its not a big deal to always reserve more space for desc ring.
> > "ring_size = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);"
> >
> >3. Fixes a potential invalid memory access in ice_reset_rx_queue.
> > if CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is turned on while
> > ice_check_rx_burst_bulk_alloc_preconditions return fail.
> > below code will have problem.
> >
> > for (i = 0; i < ICE_RX_MAX_BURST; ++i)
> > rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
> >
> >Fixes: 50370662b727 ("net/ice: support device and queue ops")
> >Cc: stable@dpdk.org
> >
> >Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
> >---
> > config/common_base | 1 -
> > doc/guides/nics/ice.rst | 4 ---
> > drivers/net/ice/ice_rxtx.c | 64
> >++++++++++------------------------------------
> > 3 files changed, 13 insertions(+), 56 deletions(-)
> >
> >diff --git a/config/common_base b/config/common_base index
> >7ca2f28b1..c31175f9d 100644
> >--- a/config/common_base
> >+++ b/config/common_base
> >@@ -337,7 +337,6 @@ CONFIG_RTE_LIBRTE_ICE_PMD=y
> >CONFIG_RTE_LIBRTE_ICE_DEBUG_RX=n
> CONFIG_RTE_LIBRTE_ICE_DEBUG_TX=n
> >CONFIG_RTE_LIBRTE_ICE_DEBUG_TX_FREE=n
> >-CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC=y
> > CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC=n
> >
> > # Compile burst-oriented IAVF PMD driver diff --git
> >a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst index
> >cde3fd620..8af32dabf 100644
> >--- a/doc/guides/nics/ice.rst
> >+++ b/doc/guides/nics/ice.rst
> >@@ -54,10 +54,6 @@ Please note that enabling debugging options may
> affect system performance.
> >
> > Toggle display of generic debugging messages.
> >
> >-- ``CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC`` (default ``y``)
> >-
> >- Toggle bulk allocation for RX.
> >-
> > - ``CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC`` (default ``n``)
> >
> > Toggle to use a 16-byte RX descriptor, by default the RX descriptor is 32
> byte.
> >diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
> >index 60c411bfa..c7e5fc484 100644
> >--- a/drivers/net/ice/ice_rxtx.c
> >+++ b/drivers/net/ice/ice_rxtx.c
> >@@ -236,17 +236,15 @@ _ice_rx_queue_release_mbufs(struct
> ice_rx_queue *rxq)
> > rxq->sw_ring[i].mbuf = NULL;
> > }
> > }
> >-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
> >- if (rxq->rx_nb_avail == 0)
> >- return;
> >- for (i = 0; i < rxq->rx_nb_avail; i++) {
> >- struct rte_mbuf *mbuf;
> >-
> >- mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
> >- rte_pktmbuf_free_seg(mbuf);
> >- }
> >- rxq->rx_nb_avail = 0;
> >-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
> >+ if (rxq->rx_nb_avail == 0)
> >+ return;
> >+ for (i = 0; i < rxq->rx_nb_avail; i++) {
> >+ struct rte_mbuf *mbuf;
> >+
> >+ mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
> >+ rte_pktmbuf_free_seg(mbuf);
> >+ }
>
> How about just
>
> for (i = 0; i < rxq->rx_nb_avail; i++)
> rte_pktmbuf_free_seg(rxq->rx_stage[rxq->rx_next_avail + i]);
I just remove the compile option and keep the code unchanged, but no objection for your suggestion.
>
> [snip]
>
> For the rest,
>
> Acked-by: Xiaolong Ye <xiaolong.ye@intel.com>
>
> And can this cleanup be applied to i40e as well? I think it's good to have less
> configurations generally.
I40e should be similar with a little bit complexity, I will take chance to cleanup later.
Thanks
Qi
>
> Thanks,
> Xiaolong
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option
2020-03-06 8:46 ` Ye Xiaolong
2020-03-06 23:29 ` Zhang, Qi Z
@ 2020-03-08 4:13 ` Ye Xiaolong
1 sibling, 0 replies; 5+ messages in thread
From: Ye Xiaolong @ 2020-03-08 4:13 UTC (permalink / raw)
To: Qi Zhang; +Cc: beilei.xing, dev, stable
On 03/06, Ye Xiaolong wrote:
>Hi, Qi
>
>Thanks for the cleanup.
>
>On 03/04, Qi Zhang wrote:
>>Remove CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC with below
>>consideration:
>>
>>1. a default Rx path can always be selected by setting a proper
>> rx_free_thresh value at runtime, see
>> ice_check_rx_burst_bulk_alloc_preconditions.
>>
>>2. its not a big deal to always reserve more space for desc ring.
>> "ring_size = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);"
>>
>>3. Fixes a potential invalid memory access in ice_reset_rx_queue.
>> if CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is turned on while
>> ice_check_rx_burst_bulk_alloc_preconditions return fail.
>> below code will have problem.
>>
>> for (i = 0; i < ICE_RX_MAX_BURST; ++i)
>> rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
>>
>>Fixes: 50370662b727 ("net/ice: support device and queue ops")
>>Cc: stable@dpdk.org
>>
>>Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
>>---
>> config/common_base | 1 -
>> doc/guides/nics/ice.rst | 4 ---
>> drivers/net/ice/ice_rxtx.c | 64 ++++++++++------------------------------------
>> 3 files changed, 13 insertions(+), 56 deletions(-)
>>
>>diff --git a/config/common_base b/config/common_base
>>index 7ca2f28b1..c31175f9d 100644
>>--- a/config/common_base
>>+++ b/config/common_base
>>@@ -337,7 +337,6 @@ CONFIG_RTE_LIBRTE_ICE_PMD=y
>> CONFIG_RTE_LIBRTE_ICE_DEBUG_RX=n
>> CONFIG_RTE_LIBRTE_ICE_DEBUG_TX=n
>> CONFIG_RTE_LIBRTE_ICE_DEBUG_TX_FREE=n
>>-CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC=y
>> CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC=n
>>
>> # Compile burst-oriented IAVF PMD driver
>>diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
>>index cde3fd620..8af32dabf 100644
>>--- a/doc/guides/nics/ice.rst
>>+++ b/doc/guides/nics/ice.rst
>>@@ -54,10 +54,6 @@ Please note that enabling debugging options may affect system performance.
>>
>> Toggle display of generic debugging messages.
>>
>>-- ``CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC`` (default ``y``)
>>-
>>- Toggle bulk allocation for RX.
>>-
>> - ``CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC`` (default ``n``)
>>
>> Toggle to use a 16-byte RX descriptor, by default the RX descriptor is 32 byte.
>>diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
>>index 60c411bfa..c7e5fc484 100644
>>--- a/drivers/net/ice/ice_rxtx.c
>>+++ b/drivers/net/ice/ice_rxtx.c
>>@@ -236,17 +236,15 @@ _ice_rx_queue_release_mbufs(struct ice_rx_queue *rxq)
>> rxq->sw_ring[i].mbuf = NULL;
>> }
>> }
>>-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
>>- if (rxq->rx_nb_avail == 0)
>>- return;
>>- for (i = 0; i < rxq->rx_nb_avail; i++) {
>>- struct rte_mbuf *mbuf;
>>-
>>- mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
>>- rte_pktmbuf_free_seg(mbuf);
>>- }
>>- rxq->rx_nb_avail = 0;
>>-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
>>+ if (rxq->rx_nb_avail == 0)
>>+ return;
>>+ for (i = 0; i < rxq->rx_nb_avail; i++) {
>>+ struct rte_mbuf *mbuf;
>>+
>>+ mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
>>+ rte_pktmbuf_free_seg(mbuf);
>>+ }
>
>How about just
>
> for (i = 0; i < rxq->rx_nb_avail; i++)
> rte_pktmbuf_free_seg(rxq->rx_stage[rxq->rx_next_avail + i]);
>
>[snip]
>
>For the rest,
>
>Acked-by: Xiaolong Ye <xiaolong.ye@intel.com>
>
>And can this cleanup be applied to i40e as well? I think it's good to have
>less configurations generally.
>
>Thanks,
>Xiaolong
Applied to dpdk-next-net-intel with above change, Thanks.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option
@ 2020-03-04 11:39 Qi Zhang
0 siblings, 0 replies; 5+ messages in thread
From: Qi Zhang @ 2020-03-04 11:39 UTC (permalink / raw)
To: beilei.xing, xiaolong.ye; +Cc: dev, Qi Zhang, stable
Remove CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC with below
consideration:
1. a default Rx path can always be selected by setting a proper
rx_free_thresh value at runtime, see
ice_check_rx_burst_bulk_alloc_preconditions.
2. its not a big deal to always reserve more space for desc ring.
"ring_size = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);"
3. Fixes a potential invalid memory access in ice_reset_rx_queue.
if CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is turned on while
ice_check_rx_burst_bulk_alloc_preconditions return fail.
below code will have problem.
for (i = 0; i < ICE_RX_MAX_BURST; ++i)
rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
Fixes: 50370662b727 ("net/ice: support device and queue ops")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
config/common_base | 1 -
drivers/net/ice/ice_rxtx.c | 64 ++++++++++------------------------------------
2 files changed, 13 insertions(+), 52 deletions(-)
diff --git a/config/common_base b/config/common_base
index 7ca2f28b1..c31175f9d 100644
--- a/config/common_base
+++ b/config/common_base
@@ -337,7 +337,6 @@ CONFIG_RTE_LIBRTE_ICE_PMD=y
CONFIG_RTE_LIBRTE_ICE_DEBUG_RX=n
CONFIG_RTE_LIBRTE_ICE_DEBUG_TX=n
CONFIG_RTE_LIBRTE_ICE_DEBUG_TX_FREE=n
-CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC=y
CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC=n
# Compile burst-oriented IAVF PMD driver
diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 60c411bfa..c7e5fc484 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -236,17 +236,15 @@ _ice_rx_queue_release_mbufs(struct ice_rx_queue *rxq)
rxq->sw_ring[i].mbuf = NULL;
}
}
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
- if (rxq->rx_nb_avail == 0)
- return;
- for (i = 0; i < rxq->rx_nb_avail; i++) {
- struct rte_mbuf *mbuf;
-
- mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
- rte_pktmbuf_free_seg(mbuf);
- }
- rxq->rx_nb_avail = 0;
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
+ if (rxq->rx_nb_avail == 0)
+ return;
+ for (i = 0; i < rxq->rx_nb_avail; i++) {
+ struct rte_mbuf *mbuf;
+
+ mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
+ rte_pktmbuf_free_seg(mbuf);
+ }
+ rxq->rx_nb_avail = 0;
}
static void
@@ -309,16 +307,10 @@ ice_switch_rx_queue(struct ice_hw *hw, uint16_t q_idx, bool on)
}
static inline int
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
ice_check_rx_burst_bulk_alloc_preconditions(struct ice_rx_queue *rxq)
-#else
-ice_check_rx_burst_bulk_alloc_preconditions
- (__rte_unused struct ice_rx_queue *rxq)
-#endif
{
int ret = 0;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
if (!(rxq->rx_free_thresh >= ICE_RX_MAX_BURST)) {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
"rxq->rx_free_thresh=%d, "
@@ -338,9 +330,6 @@ ice_check_rx_burst_bulk_alloc_preconditions
rxq->nb_rx_desc, rxq->rx_free_thresh);
ret = -EINVAL;
}
-#else
- ret = -EINVAL;
-#endif
return ret;
}
@@ -357,17 +346,11 @@ ice_reset_rx_queue(struct ice_rx_queue *rxq)
return;
}
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
- if (ice_check_rx_burst_bulk_alloc_preconditions(rxq) == 0)
- len = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);
- else
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
- len = rxq->nb_rx_desc;
+ len = (uint16_t)(rxq->nb_rx_desc + ICE_RX_MAX_BURST);
for (i = 0; i < len * sizeof(union ice_rx_flex_desc); i++)
((volatile char *)rxq->rx_ring)[i] = 0;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
for (i = 0; i < ICE_RX_MAX_BURST; ++i)
rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
@@ -375,7 +358,6 @@ ice_reset_rx_queue(struct ice_rx_queue *rxq)
rxq->rx_nb_avail = 0;
rxq->rx_next_avail = 0;
rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
rxq->rx_tail = 0;
rxq->nb_rx_hold = 0;
@@ -926,13 +908,11 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
/* Allocate the maximun number of RX ring hardware descriptor. */
len = ICE_MAX_RING_DESC;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
/**
* Allocating a little more memory because vectorized/bulk_alloc Rx
* functions doesn't check boundaries each time.
*/
len += ICE_RX_MAX_BURST;
-#endif
/* Allocate the maximum number of RX ring hardware descriptor. */
ring_size = sizeof(union ice_rx_flex_desc) * len;
@@ -952,11 +932,8 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
rxq->rx_ring_dma = rz->iova;
rxq->rx_ring = rz->addr;
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
+ /* always reserve more for bulk alloc */
len = (uint16_t)(nb_desc + ICE_RX_MAX_BURST);
-#else
- len = nb_desc;
-#endif
/* Allocate the software ring. */
rxq->sw_ring = rte_zmalloc_socket(NULL,
@@ -977,17 +954,14 @@ ice_rx_queue_setup(struct rte_eth_dev *dev,
use_def_burst_func = ice_check_rx_burst_bulk_alloc_preconditions(rxq);
if (!use_def_burst_func) {
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
"satisfied. Rx Burst Bulk Alloc function will be "
"used on port=%d, queue=%d.",
rxq->port_id, rxq->queue_id);
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
} else {
PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
- "not satisfied, Scattered Rx is requested, "
- "or RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC is "
- "not enabled on port=%d, queue=%d.",
+ "not satisfied, Scattered Rx is requested. "
+ "on port=%d, queue=%d.",
rxq->port_id, rxq->queue_id);
ad->rx_bulk_alloc_allowed = false;
}
@@ -1399,7 +1373,6 @@ ice_rxd_to_pkt_fields(struct rte_mbuf *mb,
#endif
}
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
#define ICE_LOOK_AHEAD 8
#if (ICE_LOOK_AHEAD != 8)
#error "PMD ICE: ICE_LOOK_AHEAD must be 8\n"
@@ -1620,15 +1593,6 @@ ice_recv_pkts_bulk_alloc(void *rx_queue,
return nb_rx;
}
-#else
-static uint16_t
-ice_recv_pkts_bulk_alloc(void __rte_unused *rx_queue,
- struct rte_mbuf __rte_unused **rx_pkts,
- uint16_t __rte_unused nb_pkts)
-{
- return 0;
-}
-#endif /* RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC */
static uint16_t
ice_recv_scattered_pkts(void *rx_queue,
@@ -1872,9 +1836,7 @@ ice_dev_supported_ptypes_get(struct rte_eth_dev *dev)
ptypes = ptypes_os;
if (dev->rx_pkt_burst == ice_recv_pkts ||
-#ifdef RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC
dev->rx_pkt_burst == ice_recv_pkts_bulk_alloc ||
-#endif
dev->rx_pkt_burst == ice_recv_scattered_pkts)
return ptypes;
--
2.13.6
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-03-08 4:15 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2020-03-04 11:40 [dpdk-dev] [PATCH] net/ice: remove bulk alloc compile option Qi Zhang
2020-03-06 8:46 ` Ye Xiaolong
2020-03-06 23:29 ` Zhang, Qi Z
2020-03-08 4:13 ` Ye Xiaolong
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2020-03-04 11:39 Qi Zhang
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