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* [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa
@ 2021-09-26 16:45 jilei chen
  2021-09-27  2:09 ` Wang, Xiao W
  2021-09-27  5:17 ` [dpdk-dev] [PATCH] vdpa/ifc: increase readability in function jilei chen
  0 siblings, 2 replies; 7+ messages in thread
From: jilei chen @ 2021-09-26 16:45 UTC (permalink / raw)
  To: xiao.w.wang; +Cc: dev

Signed-off-by: jilei chen <chenjilei@cmss.chinamobile.com>
---
 drivers/vdpa/ifc/ifcvf_vdpa.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 1dc813d0a3..c2bf26f2b7 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -36,6 +36,8 @@ RTE_LOG_REGISTER(ifcvf_vdpa_logtype, pmd.vdpa.ifcvf, NOTICE);
 
 #define IFCVF_VDPA_MODE		"vdpa"
 #define IFCVF_SW_FALLBACK_LM	"sw-live-migration"
+#define IFCVF_MAP	1
+#define IFCVF_UNMAP	0
 
 #define THREAD_NAME_LEN	16
 
@@ -538,7 +540,7 @@ update_datapath(struct ifcvf_internal *internal)
 	if (!rte_atomic32_read(&internal->running) &&
 	    (rte_atomic32_read(&internal->started) &&
 	     rte_atomic32_read(&internal->dev_attached))) {
-		ret = ifcvf_dma_map(internal, 1);
+		ret = ifcvf_dma_map(internal, IFCVF_MAP);
 		if (ret)
 			goto err;
 
@@ -568,7 +570,7 @@ update_datapath(struct ifcvf_internal *internal)
 		if (ret)
 			goto err;
 
-		ret = ifcvf_dma_map(internal, 0);
+		ret = ifcvf_dma_map(internal, IFCVF_UNMAP);
 		if (ret)
 			goto err;
 
@@ -875,7 +877,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal *internal)
 unset_intr:
 	vdpa_disable_vfio_intr(internal);
 unmap:
-	ifcvf_dma_map(internal, 0);
+	ifcvf_dma_map(internal, IFCVF_UNMAP);
 error:
 	return -1;
 }
@@ -934,7 +936,7 @@ ifcvf_dev_close(int vid)
 		vdpa_disable_vfio_intr(internal);
 
 		/* unset DMA map for guest memory */
-		ifcvf_dma_map(internal, 0);
+		ifcvf_dma_map(internal, IFCVF_UNMAP);
 
 		internal->sw_fallback_running = false;
 	} else {
-- 
2.12.2




^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa
  2021-09-26 16:45 [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa jilei chen
@ 2021-09-27  2:09 ` Wang, Xiao W
  2021-09-27  5:17 ` [dpdk-dev] [PATCH] vdpa/ifc: increase readability in function jilei chen
  1 sibling, 0 replies; 7+ messages in thread
From: Wang, Xiao W @ 2021-09-27  2:09 UTC (permalink / raw)
  To: jilei chen; +Cc: dev

Hi Jilei,

Please notice the patch format requirement, the subject of the patch should start with "vdpa/ifc: ".
You also need to keep it concise, around ~50 characters.
Refer " doc/guides/contributing/patches.rst" for more detail.

Back to this patch, it looks we can just change function ifcvf_dma_map(struct ifcvf_internal *internal, int do_map) to
ifcvf_dma_map(struct ifcvf_internal *internal, bool do_map), and use "true" or "false" when calling it.
This would align with vdpa_enable_vfio_intr(). In your next version patch, you can also change the "1", "0" parameter to
"true", "false" when calling vdpa_enable_vfio_intr().

BRs,
Xiao

> -----Original Message-----
> From: jilei chen <chenjilei@cmss.chinamobile.com>
> Sent: Monday, September 27, 2021 12:45 AM
> To: Wang, Xiao W <xiao.w.wang@intel.com>
> Cc: dev@dpdk.org
> Subject: [PATCH] Enhance code readability when dma_map in
> ifc/ifcvp_vdpa
> 
> Signed-off-by: jilei chen <chenjilei@cmss.chinamobile.com>
> ---
>  drivers/vdpa/ifc/ifcvf_vdpa.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
> index 1dc813d0a3..c2bf26f2b7 100644
> --- a/drivers/vdpa/ifc/ifcvf_vdpa.c
> +++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
> @@ -36,6 +36,8 @@ RTE_LOG_REGISTER(ifcvf_vdpa_logtype,
> pmd.vdpa.ifcvf, NOTICE);
> 
>  #define IFCVF_VDPA_MODE		"vdpa"
>  #define IFCVF_SW_FALLBACK_LM	"sw-live-migration"
> +#define IFCVF_MAP	1
> +#define IFCVF_UNMAP	0
> 
>  #define THREAD_NAME_LEN	16
> 
> @@ -538,7 +540,7 @@ update_datapath(struct ifcvf_internal *internal)
>  	if (!rte_atomic32_read(&internal->running) &&
>  	    (rte_atomic32_read(&internal->started) &&
>  	     rte_atomic32_read(&internal->dev_attached))) {
> -		ret = ifcvf_dma_map(internal, 1);
> +		ret = ifcvf_dma_map(internal, IFCVF_MAP);
>  		if (ret)
>  			goto err;
> 
> @@ -568,7 +570,7 @@ update_datapath(struct ifcvf_internal *internal)
>  		if (ret)
>  			goto err;
> 
> -		ret = ifcvf_dma_map(internal, 0);
> +		ret = ifcvf_dma_map(internal, IFCVF_UNMAP);
>  		if (ret)
>  			goto err;
> 
> @@ -875,7 +877,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal
> *internal)
>  unset_intr:
>  	vdpa_disable_vfio_intr(internal);
>  unmap:
> -	ifcvf_dma_map(internal, 0);
> +	ifcvf_dma_map(internal, IFCVF_UNMAP);
>  error:
>  	return -1;
>  }
> @@ -934,7 +936,7 @@ ifcvf_dev_close(int vid)
>  		vdpa_disable_vfio_intr(internal);
> 
>  		/* unset DMA map for guest memory */
> -		ifcvf_dma_map(internal, 0);
> +		ifcvf_dma_map(internal, IFCVF_UNMAP);
> 
>  		internal->sw_fallback_running = false;
>  	} else {
> --
> 2.12.2
> 
> 


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [dpdk-dev] [PATCH] vdpa/ifc: increase readability in function
  2021-09-26 16:45 [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa jilei chen
  2021-09-27  2:09 ` Wang, Xiao W
@ 2021-09-27  5:17 ` jilei chen
  2021-09-27 10:17   ` [dpdk-dev] [PATCH] [v3] " jilei chen
  1 sibling, 1 reply; 7+ messages in thread
From: jilei chen @ 2021-09-27  5:17 UTC (permalink / raw)
  To: xiao.w.wang; +Cc: dev

Optimize several parameters form order to better readability

Signed-off-by: jilei chen <chenjilei@cmss.chinamobile.com>
---
 drivers/vdpa/ifc/ifcvf_vdpa.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 1dc813d0a3..365da2a8b9 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -182,7 +182,7 @@ ifcvf_vfio_setup(struct ifcvf_internal *internal)
 }
 
 static int
-ifcvf_dma_map(struct ifcvf_internal *internal, int do_map)
+ifcvf_dma_map(struct ifcvf_internal *internal, bool do_map)
 {
 	uint32_t i;
 	int ret;
@@ -538,11 +538,11 @@ update_datapath(struct ifcvf_internal *internal)
 	if (!rte_atomic32_read(&internal->running) &&
 	    (rte_atomic32_read(&internal->started) &&
 	     rte_atomic32_read(&internal->dev_attached))) {
-		ret = ifcvf_dma_map(internal, 1);
+		ret = ifcvf_dma_map(internal, true);
 		if (ret)
 			goto err;
 
-		ret = vdpa_enable_vfio_intr(internal, 0);
+		ret = vdpa_enable_vfio_intr(internal, false);
 		if (ret)
 			goto err;
 
@@ -568,7 +568,7 @@ update_datapath(struct ifcvf_internal *internal)
 		if (ret)
 			goto err;
 
-		ret = ifcvf_dma_map(internal, 0);
+		ret = ifcvf_dma_map(internal, false);
 		if (ret)
 			goto err;
 
@@ -850,7 +850,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal *internal)
 		goto error;
 
 	/* set up interrupt for interrupt relay */
-	ret = vdpa_enable_vfio_intr(internal, 1);
+	ret = vdpa_enable_vfio_intr(internal, true);
 	if (ret)
 		goto unmap;
 
@@ -875,7 +875,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal *internal)
 unset_intr:
 	vdpa_disable_vfio_intr(internal);
 unmap:
-	ifcvf_dma_map(internal, 0);
+	ifcvf_dma_map(internal, false);
 error:
 	return -1;
 }
@@ -934,7 +934,7 @@ ifcvf_dev_close(int vid)
 		vdpa_disable_vfio_intr(internal);
 
 		/* unset DMA map for guest memory */
-		ifcvf_dma_map(internal, 0);
+		ifcvf_dma_map(internal, false);
 
 		internal->sw_fallback_running = false;
 	} else {
@@ -1130,7 +1130,7 @@ ifcvf_set_vring_state(int vid, int vring, int state)
 	}
 
 	if (state && !hw->vring[vring].enable) {
-		ret = vdpa_enable_vfio_intr(internal, 0);
+		ret = vdpa_enable_vfio_intr(internal, false);
 		if (ret)
 			return ret;
 	}
-- 
2.12.2




^ permalink raw reply	[flat|nested] 7+ messages in thread

* [dpdk-dev] [PATCH] [v3] vdpa/ifc: increase readability in function
  2021-09-27  5:17 ` [dpdk-dev] [PATCH] vdpa/ifc: increase readability in function jilei chen
@ 2021-09-27 10:17   ` jilei chen
  2021-09-28  2:22     ` Wang, Xiao W
  0 siblings, 1 reply; 7+ messages in thread
From: jilei chen @ 2021-09-27 10:17 UTC (permalink / raw)
  To: xiao.w.wang; +Cc: dev

Use bool type for function's switch parameter,
this could avoid passing "1" or "0" which is not reader friendly.

Signed-off-by: jilei chen <chenjilei@cmss.chinamobile.com>
---
v3:
* Update inappropriate description

v2:
* Concise subject of the patch
* Optimize function parameters
---
 drivers/vdpa/ifc/ifcvf_vdpa.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
index 1dc813d0a3..365da2a8b9 100644
--- a/drivers/vdpa/ifc/ifcvf_vdpa.c
+++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
@@ -182,7 +182,7 @@ ifcvf_vfio_setup(struct ifcvf_internal *internal)
 }
 
 static int
-ifcvf_dma_map(struct ifcvf_internal *internal, int do_map)
+ifcvf_dma_map(struct ifcvf_internal *internal, bool do_map)
 {
 	uint32_t i;
 	int ret;
@@ -538,11 +538,11 @@ update_datapath(struct ifcvf_internal *internal)
 	if (!rte_atomic32_read(&internal->running) &&
 	    (rte_atomic32_read(&internal->started) &&
 	     rte_atomic32_read(&internal->dev_attached))) {
-		ret = ifcvf_dma_map(internal, 1);
+		ret = ifcvf_dma_map(internal, true);
 		if (ret)
 			goto err;
 
-		ret = vdpa_enable_vfio_intr(internal, 0);
+		ret = vdpa_enable_vfio_intr(internal, false);
 		if (ret)
 			goto err;
 
@@ -568,7 +568,7 @@ update_datapath(struct ifcvf_internal *internal)
 		if (ret)
 			goto err;
 
-		ret = ifcvf_dma_map(internal, 0);
+		ret = ifcvf_dma_map(internal, false);
 		if (ret)
 			goto err;
 
@@ -850,7 +850,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal *internal)
 		goto error;
 
 	/* set up interrupt for interrupt relay */
-	ret = vdpa_enable_vfio_intr(internal, 1);
+	ret = vdpa_enable_vfio_intr(internal, true);
 	if (ret)
 		goto unmap;
 
@@ -875,7 +875,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal *internal)
 unset_intr:
 	vdpa_disable_vfio_intr(internal);
 unmap:
-	ifcvf_dma_map(internal, 0);
+	ifcvf_dma_map(internal, false);
 error:
 	return -1;
 }
@@ -934,7 +934,7 @@ ifcvf_dev_close(int vid)
 		vdpa_disable_vfio_intr(internal);
 
 		/* unset DMA map for guest memory */
-		ifcvf_dma_map(internal, 0);
+		ifcvf_dma_map(internal, false);
 
 		internal->sw_fallback_running = false;
 	} else {
@@ -1130,7 +1130,7 @@ ifcvf_set_vring_state(int vid, int vring, int state)
 	}
 
 	if (state && !hw->vring[vring].enable) {
-		ret = vdpa_enable_vfio_intr(internal, 0);
+		ret = vdpa_enable_vfio_intr(internal, false);
 		if (ret)
 			return ret;
 	}
-- 
2.12.2




^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [dpdk-dev] [PATCH] [v3] vdpa/ifc: increase readability in function
  2021-09-27 10:17   ` [dpdk-dev] [PATCH] [v3] " jilei chen
@ 2021-09-28  2:22     ` Wang, Xiao W
  2021-09-30 17:24       ` Ferruh Yigit
  0 siblings, 1 reply; 7+ messages in thread
From: Wang, Xiao W @ 2021-09-28  2:22 UTC (permalink / raw)
  To: jilei chen; +Cc: dev

Hi,

> -----Original Message-----
> From: jilei chen <chenjilei@cmss.chinamobile.com>
> Sent: Monday, September 27, 2021 6:18 PM
> To: Wang, Xiao W <xiao.w.wang@intel.com>
> Cc: dev@dpdk.org
> Subject: [PATCH] [v3] vdpa/ifc: increase readability in function
> 
> Use bool type for function's switch parameter,
> this could avoid passing "1" or "0" which is not reader friendly.
> 
> Signed-off-by: jilei chen <chenjilei@cmss.chinamobile.com>
> ---
> v3:
> * Update inappropriate description
> 
> v2:
> * Concise subject of the patch
> * Optimize function parameters
> ---
>  drivers/vdpa/ifc/ifcvf_vdpa.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/vdpa/ifc/ifcvf_vdpa.c b/drivers/vdpa/ifc/ifcvf_vdpa.c
> index 1dc813d0a3..365da2a8b9 100644
> --- a/drivers/vdpa/ifc/ifcvf_vdpa.c
> +++ b/drivers/vdpa/ifc/ifcvf_vdpa.c
> @@ -182,7 +182,7 @@ ifcvf_vfio_setup(struct ifcvf_internal *internal)
>  }
> 
>  static int
> -ifcvf_dma_map(struct ifcvf_internal *internal, int do_map)
> +ifcvf_dma_map(struct ifcvf_internal *internal, bool do_map)
>  {
>  	uint32_t i;
>  	int ret;
> @@ -538,11 +538,11 @@ update_datapath(struct ifcvf_internal *internal)
>  	if (!rte_atomic32_read(&internal->running) &&
>  	    (rte_atomic32_read(&internal->started) &&
>  	     rte_atomic32_read(&internal->dev_attached))) {
> -		ret = ifcvf_dma_map(internal, 1);
> +		ret = ifcvf_dma_map(internal, true);
>  		if (ret)
>  			goto err;
> 
> -		ret = vdpa_enable_vfio_intr(internal, 0);
> +		ret = vdpa_enable_vfio_intr(internal, false);
>  		if (ret)
>  			goto err;
> 
> @@ -568,7 +568,7 @@ update_datapath(struct ifcvf_internal *internal)
>  		if (ret)
>  			goto err;
> 
> -		ret = ifcvf_dma_map(internal, 0);
> +		ret = ifcvf_dma_map(internal, false);
>  		if (ret)
>  			goto err;
> 
> @@ -850,7 +850,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal
> *internal)
>  		goto error;
> 
>  	/* set up interrupt for interrupt relay */
> -	ret = vdpa_enable_vfio_intr(internal, 1);
> +	ret = vdpa_enable_vfio_intr(internal, true);
>  	if (ret)
>  		goto unmap;
> 
> @@ -875,7 +875,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal
> *internal)
>  unset_intr:
>  	vdpa_disable_vfio_intr(internal);
>  unmap:
> -	ifcvf_dma_map(internal, 0);
> +	ifcvf_dma_map(internal, false);
>  error:
>  	return -1;
>  }
> @@ -934,7 +934,7 @@ ifcvf_dev_close(int vid)
>  		vdpa_disable_vfio_intr(internal);
> 
>  		/* unset DMA map for guest memory */
> -		ifcvf_dma_map(internal, 0);
> +		ifcvf_dma_map(internal, false);
> 
>  		internal->sw_fallback_running = false;
>  	} else {
> @@ -1130,7 +1130,7 @@ ifcvf_set_vring_state(int vid, int vring, int state)
>  	}
> 
>  	if (state && !hw->vring[vring].enable) {
> -		ret = vdpa_enable_vfio_intr(internal, 0);
> +		ret = vdpa_enable_vfio_intr(internal, false);
>  		if (ret)
>  			return ret;
>  	}
> --
> 2.12.2
> 
> 

Acked-by: Xiao Wang <xiao.w.wang@intel.com>

BRs,
Xiao

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [dpdk-dev] [PATCH] [v3] vdpa/ifc: increase readability in function
  2021-09-28  2:22     ` Wang, Xiao W
@ 2021-09-30 17:24       ` Ferruh Yigit
  0 siblings, 0 replies; 7+ messages in thread
From: Ferruh Yigit @ 2021-09-30 17:24 UTC (permalink / raw)
  To: Wang, Xiao W, jilei chen; +Cc: dev

On 9/28/2021 3:22 AM, Wang, Xiao W wrote:
> Hi,
> 
>> -----Original Message-----
>> From: jilei chen <chenjilei@cmss.chinamobile.com>
>> Sent: Monday, September 27, 2021 6:18 PM
>> To: Wang, Xiao W <xiao.w.wang@intel.com>
>> Cc: dev@dpdk.org
>> Subject: [PATCH] [v3] vdpa/ifc: increase readability in function
>>
>> Use bool type for function's switch parameter,
>> this could avoid passing "1" or "0" which is not reader friendly.
>>
>> Signed-off-by: jilei chen <chenjilei@cmss.chinamobile.com>>
> Acked-by: Xiao Wang <xiao.w.wang@intel.com>
> 

Applied to dpdk-next-net/main, thanks.


^ permalink raw reply	[flat|nested] 7+ messages in thread

* [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa
@ 2021-09-26 15:57 jilei chen
  0 siblings, 0 replies; 7+ messages in thread
From: jilei chen @ 2021-09-26 15:57 UTC (permalink / raw)
  To: xiao.w.wang; +Cc: dev, Jilei Chen

From: Jilei Chen <chenjilei@cmss.chinamobile.com>

Signed-off-by: Jilei Chen <chenjilei@cmss.chinamobile.com>
---
 drivers/net/ifc/ifcvf_vdpa.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ifc/ifcvf_vdpa.c b/drivers/net/ifc/ifcvf_vdpa.c
index da4667ba54..fe7ec87a8a 100644
--- a/drivers/net/ifc/ifcvf_vdpa.c
+++ b/drivers/net/ifc/ifcvf_vdpa.c
@@ -37,6 +37,8 @@
 
 #define IFCVF_VDPA_MODE		"vdpa"
 #define IFCVF_SW_FALLBACK_LM	"sw-live-migration"
+#define IFCVF_MAP	1
+#define IFCVF_UNMAP	0
 
 static const char * const ifcvf_valid_arguments[] = {
 	IFCVF_VDPA_MODE,
@@ -535,7 +537,7 @@ update_datapath(struct ifcvf_internal *internal)
 	if (!rte_atomic32_read(&internal->running) &&
 	    (rte_atomic32_read(&internal->started) &&
 	     rte_atomic32_read(&internal->dev_attached))) {
-		ret = ifcvf_dma_map(internal, 1);
+		ret = ifcvf_dma_map(internal, IFCVF_MAP);
 		if (ret)
 			goto err;
 
@@ -565,7 +567,7 @@ update_datapath(struct ifcvf_internal *internal)
 		if (ret)
 			goto err;
 
-		ret = ifcvf_dma_map(internal, 0);
+		ret = ifcvf_dma_map(internal, IFCVF_UNMAP);
 		if (ret)
 			goto err;
 
@@ -869,7 +871,7 @@ ifcvf_sw_fallback_switchover(struct ifcvf_internal *internal)
 unset_intr:
 	vdpa_disable_vfio_intr(internal);
 unmap:
-	ifcvf_dma_map(internal, 0);
+	ifcvf_dma_map(internal, IFCVF_UNMAP);
 error:
 	return -1;
 }
@@ -926,7 +928,7 @@ ifcvf_dev_close(int vid)
 		vdpa_disable_vfio_intr(internal);
 
 		/* unset DMA map for guest memory */
-		ifcvf_dma_map(internal, 0);
+		ifcvf_dma_map(internal, IFCVF_UNMAP);
 
 		internal->sw_fallback_running = false;
 	} else {
-- 
2.12.2




^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-09-30 17:24 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-26 16:45 [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa jilei chen
2021-09-27  2:09 ` Wang, Xiao W
2021-09-27  5:17 ` [dpdk-dev] [PATCH] vdpa/ifc: increase readability in function jilei chen
2021-09-27 10:17   ` [dpdk-dev] [PATCH] [v3] " jilei chen
2021-09-28  2:22     ` Wang, Xiao W
2021-09-30 17:24       ` Ferruh Yigit
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2021-09-26 15:57 [dpdk-dev] [PATCH] Enhance code readability when dma_map in ifc/ifcvp_vdpa jilei chen

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