* Re: [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
@ 2016-08-10 4:42 Yao, Lei A
0 siblings, 0 replies; 4+ messages in thread
From: Yao, Lei A @ 2016-08-10 4:42 UTC (permalink / raw)
To: Jianbo Liu, Xu, Qian Q, Wu, Jingjing; +Cc: dev
Hi, Jianbo
I have tested you patch , this v3 patch didn't impact the performance on X86 platform.
Non-vector PMD single core performance with patch : ~35 Mpps
Non-vector PMD single core performance without patch : ~35 Mpps
BRs
Lei
-----Original Message-----
Date: Fri, 5 Aug 2016 14:36:23 +0530
From: Jianbo Liu <jianbo.liu@linaro.org>
To: dev@dpdk.org, helin.zhang@intel.com, jingjing.wu@intel.com
Cc: Jianbo Liu <jianbo.liu@linaro.org>
Subject: [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
Message-ID: <1470387983-12713-1-git-send-email-jianbo.liu@linaro.org>
And add read memory barrier to avoid status inconsistency between two RX descriptors readings.
Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org>
---
config/defconfig_arm64-armv8a-linuxapp-gcc | 2 +-
doc/guides/nics/features/i40e.ini | 1 +
drivers/net/i40e/i40e_rxtx.c | 2 ++
3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/config/defconfig_arm64-armv8a-linuxapp-gcc b/config/defconfig_arm64-armv8a-linuxapp-gcc
index 1a17126..08f282b 100644
--- a/config/defconfig_arm64-armv8a-linuxapp-gcc
+++ b/config/defconfig_arm64-armv8a-linuxapp-gcc
@@ -46,6 +46,6 @@ CONFIG_RTE_EAL_IGB_UIO=n
CONFIG_RTE_LIBRTE_IVSHMEM=n
CONFIG_RTE_LIBRTE_FM10K_PMD=n
-CONFIG_RTE_LIBRTE_I40E_PMD=n
+CONFIG_RTE_LIBRTE_I40E_INC_VECTOR=n
CONFIG_RTE_SCHED_VECTOR=n
diff --git a/doc/guides/nics/features/i40e.ini b/doc/guides/nics/features/i40e.ini
index fb3fb60..0d143bc 100644
--- a/doc/guides/nics/features/i40e.ini
+++ b/doc/guides/nics/features/i40e.ini
@@ -45,3 +45,4 @@ Linux UIO = Y
Linux VFIO = Y
x86-32 = Y
x86-64 = Y
+ARMv8 = Y
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 554d167..57825fb 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -994,6 +994,8 @@ i40e_rx_scan_hw_ring(struct i40e_rx_queue *rxq)
I40E_RXD_QW1_STATUS_SHIFT;
}
+ rte_smp_rmb();
+
/* Compute how many status bits were set */
for (j = 0, nb_dd = 0; j < I40E_LOOK_AHEAD; j++)
nb_dd += s[j] & (1 << I40E_RX_DESC_STATUS_DD_SHIFT);
--
2.4.11
^ permalink raw reply [flat|nested] 4+ messages in thread
* [dpdk-dev] [PATCH] i40e: enable i40e pmd on ARM platform
@ 2016-08-02 6:58 Jianbo Liu
2016-08-05 9:06 ` [dpdk-dev] [PATCH v3] " Jianbo Liu
0 siblings, 1 reply; 4+ messages in thread
From: Jianbo Liu @ 2016-08-02 6:58 UTC (permalink / raw)
To: dev, helin.zhang, jingjing.wu; +Cc: Jianbo Liu
And add read memory barrier to avoid status inconsistency
between two RX descriptors readings.
Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org>
---
config/defconfig_arm64-armv8a-linuxapp-gcc | 2 +-
doc/guides/nics/overview.rst | 2 +-
drivers/net/i40e/i40e_rxtx.c | 2 ++
3 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/config/defconfig_arm64-armv8a-linuxapp-gcc b/config/defconfig_arm64-armv8a-linuxapp-gcc
index 1a17126..08f282b 100644
--- a/config/defconfig_arm64-armv8a-linuxapp-gcc
+++ b/config/defconfig_arm64-armv8a-linuxapp-gcc
@@ -46,6 +46,6 @@ CONFIG_RTE_EAL_IGB_UIO=n
CONFIG_RTE_LIBRTE_IVSHMEM=n
CONFIG_RTE_LIBRTE_FM10K_PMD=n
-CONFIG_RTE_LIBRTE_I40E_PMD=n
+CONFIG_RTE_LIBRTE_I40E_INC_VECTOR=n
CONFIG_RTE_SCHED_VECTOR=n
diff --git a/doc/guides/nics/overview.rst b/doc/guides/nics/overview.rst
index 6abbae6..5175591 100644
--- a/doc/guides/nics/overview.rst
+++ b/doc/guides/nics/overview.rst
@@ -138,7 +138,7 @@ Most of these differences are summarized below.
Linux VFIO Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Other kdrv Y Y Y
ARMv7 Y Y Y
- ARMv8 Y Y Y Y Y Y Y Y
+ ARMv8 Y Y Y Y Y Y Y Y Y
Power8 Y Y Y
TILE-Gx Y
x86-32 Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 554d167..4004b8e 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -994,6 +994,8 @@ i40e_rx_scan_hw_ring(struct i40e_rx_queue *rxq)
I40E_RXD_QW1_STATUS_SHIFT;
}
+ rte_rmb();
+
/* Compute how many status bits were set */
for (j = 0, nb_dd = 0; j < I40E_LOOK_AHEAD; j++)
nb_dd += s[j] & (1 << I40E_RX_DESC_STATUS_DD_SHIFT);
--
2.4.11
^ permalink raw reply [flat|nested] 4+ messages in thread
* [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
2016-08-02 6:58 [dpdk-dev] [PATCH] " Jianbo Liu
@ 2016-08-05 9:06 ` Jianbo Liu
2016-09-23 1:13 ` Zhang, Qi Z
0 siblings, 1 reply; 4+ messages in thread
From: Jianbo Liu @ 2016-08-05 9:06 UTC (permalink / raw)
To: dev, helin.zhang, jingjing.wu; +Cc: Jianbo Liu
And add read memory barrier to avoid status inconsistency
between two RX descriptors readings.
Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org>
---
config/defconfig_arm64-armv8a-linuxapp-gcc | 2 +-
doc/guides/nics/features/i40e.ini | 1 +
drivers/net/i40e/i40e_rxtx.c | 2 ++
3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/config/defconfig_arm64-armv8a-linuxapp-gcc b/config/defconfig_arm64-armv8a-linuxapp-gcc
index 1a17126..08f282b 100644
--- a/config/defconfig_arm64-armv8a-linuxapp-gcc
+++ b/config/defconfig_arm64-armv8a-linuxapp-gcc
@@ -46,6 +46,6 @@ CONFIG_RTE_EAL_IGB_UIO=n
CONFIG_RTE_LIBRTE_IVSHMEM=n
CONFIG_RTE_LIBRTE_FM10K_PMD=n
-CONFIG_RTE_LIBRTE_I40E_PMD=n
+CONFIG_RTE_LIBRTE_I40E_INC_VECTOR=n
CONFIG_RTE_SCHED_VECTOR=n
diff --git a/doc/guides/nics/features/i40e.ini b/doc/guides/nics/features/i40e.ini
index fb3fb60..0d143bc 100644
--- a/doc/guides/nics/features/i40e.ini
+++ b/doc/guides/nics/features/i40e.ini
@@ -45,3 +45,4 @@ Linux UIO = Y
Linux VFIO = Y
x86-32 = Y
x86-64 = Y
+ARMv8 = Y
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 554d167..57825fb 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -994,6 +994,8 @@ i40e_rx_scan_hw_ring(struct i40e_rx_queue *rxq)
I40E_RXD_QW1_STATUS_SHIFT;
}
+ rte_smp_rmb();
+
/* Compute how many status bits were set */
for (j = 0, nb_dd = 0; j < I40E_LOOK_AHEAD; j++)
nb_dd += s[j] & (1 << I40E_RX_DESC_STATUS_DD_SHIFT);
--
2.4.11
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
2016-08-05 9:06 ` [dpdk-dev] [PATCH v3] " Jianbo Liu
@ 2016-09-23 1:13 ` Zhang, Qi Z
2016-09-27 13:39 ` Bruce Richardson
0 siblings, 1 reply; 4+ messages in thread
From: Zhang, Qi Z @ 2016-09-23 1:13 UTC (permalink / raw)
To: Jianbo Liu, dev; +Cc: Zhang, Helin, Wu, Jingjing
Hi
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Jianbo Liu
> Sent: Friday, August 5, 2016 5:06 PM
> To: dev@dpdk.org; Zhang, Helin <helin.zhang@intel.com>; Wu, Jingjing
> <jingjing.wu@intel.com>
> Cc: Jianbo Liu <jianbo.liu@linaro.org>
> Subject: [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
>
> And add read memory barrier to avoid status inconsistency between two RX
> descriptors readings.
>
> Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org>
Acted-by: Zhang Qi <qi.z.zhang@intel.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
2016-09-23 1:13 ` Zhang, Qi Z
@ 2016-09-27 13:39 ` Bruce Richardson
0 siblings, 0 replies; 4+ messages in thread
From: Bruce Richardson @ 2016-09-27 13:39 UTC (permalink / raw)
To: Zhang, Qi Z; +Cc: Jianbo Liu, dev, Zhang, Helin, Wu, Jingjing
On Fri, Sep 23, 2016 at 01:13:17AM +0000, Zhang, Qi Z wrote:
> Hi
>
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Jianbo Liu
> > Sent: Friday, August 5, 2016 5:06 PM
> > To: dev@dpdk.org; Zhang, Helin <helin.zhang@intel.com>; Wu, Jingjing
> > <jingjing.wu@intel.com>
> > Cc: Jianbo Liu <jianbo.liu@linaro.org>
> > Subject: [dpdk-dev] [PATCH v3] i40e: enable i40e pmd on ARM platform
> >
> > And add read memory barrier to avoid status inconsistency between two RX
> > descriptors readings.
> >
> > Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org>
>
> Acted-by: Zhang Qi <qi.z.zhang@intel.com>
>
Applied to dpdk-next-net/rel_16_11
/Bruce
^ permalink raw reply [flat|nested] 4+ messages in thread
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