diff mbox

[dpdk-dev,v2,2/2] lib/librte_pmd_i40e: add I40E_VFTA_IDX and I40E_VFTA_BIT macros for VFTA related operation

Message ID 1415587563-11512-3-git-send-email-huawei.xie@intel.com (mailing list archive)
State Changes Requested, archived
Headers

Commit Message

Huawei Xie Nov. 10, 2014, 2:46 a.m. UTC 
  Add two macros I40E_VFTA_IDX and I40E_VFTA_BIT for VFTA manipulation.
Add vlan_id check in vlan filter search and set function.

Signed-off-by: Huawei Xie <huawei.xie@intel.com>
---
 lib/librte_pmd_i40e/i40e_ethdev.c | 17 ++++++++++-------
 lib/librte_pmd_i40e/i40e_ethdev.h |  9 +++++++++
 2 files changed, 19 insertions(+), 7 deletions(-)

Comments

Zhang, Helin Nov. 10, 2014, 5:08 a.m. UTC | #1 
Hi Huawei

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Huawei Xie
> Sent: Monday, November 10, 2014 10:46 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v2 2/2] lib/librte_pmd_i40e: add I40E_VFTA_IDX and
> I40E_VFTA_BIT macros for VFTA related operation
> 
> Add two macros I40E_VFTA_IDX and I40E_VFTA_BIT for VFTA manipulation.
> Add vlan_id check in vlan filter search and set function.
> 
> Signed-off-by: Huawei Xie <huawei.xie@intel.com>
> ---
>  lib/librte_pmd_i40e/i40e_ethdev.c | 17 ++++++++++-------
> lib/librte_pmd_i40e/i40e_ethdev.h |  9 +++++++++
>  2 files changed, 19 insertions(+), 7 deletions(-)
> 
> diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c
> b/lib/librte_pmd_i40e/i40e_ethdev.c
> index c0cf3cf..245460f 100644
> --- a/lib/librte_pmd_i40e/i40e_ethdev.c
> +++ b/lib/librte_pmd_i40e/i40e_ethdev.c
> @@ -4033,8 +4033,11 @@ i40e_find_vlan_filter(struct i40e_vsi *vsi,  {
>  	uint32_t vid_idx, vid_bit;
> 
> -	vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F);
> -	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
> +	if (vlan_id > ETH_VLAN_ID_MAX)
> +		return 0;
> +
> +	vid_idx = I40E_VFTA_IDX(vlan_id);
> +	vid_bit = I40E_VFTA_BIT(vlan_id);
> 
>  	if (vsi->vfta[vid_idx] & vid_bit)
>  		return 1;
> @@ -4048,11 +4051,11 @@ i40e_set_vlan_filter(struct i40e_vsi *vsi,  {
>  	uint32_t vid_idx, vid_bit;
> 
> -	/* VFTA is 32-bits size array, each element contains 32 vlan bits, Find the
> -	 *  element first, then find the bits it belongs to
> -	 */
> -	vid_idx = (uint32_t) ((vlan_id >> 5 ) & 0x7F);
> -	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
> +	if (vlan_id > ETH_VLAN_ID_MAX)
> +		return;
> +
> +	vid_idx = I40E_VFTA_IDX(vlan_id);
> +	vid_bit = I40E_VFTA_BIT(vlan_id);
> 
>  	if (on)
>  		vsi->vfta[vid_idx] |= vid_bit;
> diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h
> b/lib/librte_pmd_i40e/i40e_ethdev.h
> index 96361c2..4f2c16a 100644
> --- a/lib/librte_pmd_i40e/i40e_ethdev.h
> +++ b/lib/librte_pmd_i40e/i40e_ethdev.h
> @@ -50,6 +50,15 @@
>  #define I40E_DEFAULT_QP_NUM_FDIR  64
>  #define I40E_UINT32_BIT_SIZE      (CHAR_BIT * sizeof(uint32_t))
>  #define I40E_VFTA_SIZE            (4096 / I40E_UINT32_BIT_SIZE)
> +/*
> + * vlan_id is a 12 bit number.
> + * The VFTA array is actually a 4096 bit array, 128 of 32bit elements.
> + * 2^5 = 32. The val of lower 5 bits specifies the bit in the 32bit element.
> + * The higher 7 bit val specifies VFTA array index.
> + */
> +#define I40E_VFTA_BIT(vlan_id)    (1 << ((vlan_id) & 0x1F))
> +#define I40E_VFTA_IDX(vlan_id)    ((vlan_id) >> 5)
Why not define the 0x1f and 5 more meaningful in macros?

Why define it in this header file? It seems that only used in i40e_ethdev.c.

> +
>  /* Default TC traffic in case DCB is not enabled */
>  #define I40E_DEFAULT_TCMAP        0x1
> 
> --
> 1.8.1.4

Regards,
Helin
Huawei Xie Nov. 10, 2014, 6:52 a.m. UTC | #2 
> -----Original Message-----
> From: Zhang, Helin
> Sent: Sunday, November 09, 2014 10:08 PM
> To: Xie, Huawei; dev@dpdk.org
> Subject: RE: [dpdk-dev] [PATCH v2 2/2] lib/librte_pmd_i40e: add I40E_VFTA_IDX
> and I40E_VFTA_BIT macros for VFTA related operation
> 
> Hi Huawei
> 
> > -----Original Message-----
> > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Huawei Xie
> > Sent: Monday, November 10, 2014 10:46 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev] [PATCH v2 2/2] lib/librte_pmd_i40e: add I40E_VFTA_IDX
> and
> > I40E_VFTA_BIT macros for VFTA related operation
> >
> > Add two macros I40E_VFTA_IDX and I40E_VFTA_BIT for VFTA manipulation.
> > Add vlan_id check in vlan filter search and set function.
> >
> > Signed-off-by: Huawei Xie <huawei.xie@intel.com>
> > ---
> >  lib/librte_pmd_i40e/i40e_ethdev.c | 17 ++++++++++-------
> > lib/librte_pmd_i40e/i40e_ethdev.h |  9 +++++++++
> >  2 files changed, 19 insertions(+), 7 deletions(-)
> >
> > diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c
> > b/lib/librte_pmd_i40e/i40e_ethdev.c
> > index c0cf3cf..245460f 100644
> > --- a/lib/librte_pmd_i40e/i40e_ethdev.c
> > +++ b/lib/librte_pmd_i40e/i40e_ethdev.c
> > @@ -4033,8 +4033,11 @@ i40e_find_vlan_filter(struct i40e_vsi *vsi,  {
> >  	uint32_t vid_idx, vid_bit;
> >
> > -	vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F);
> > -	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
> > +	if (vlan_id > ETH_VLAN_ID_MAX)
> > +		return 0;
> > +
> > +	vid_idx = I40E_VFTA_IDX(vlan_id);
> > +	vid_bit = I40E_VFTA_BIT(vlan_id);
> >
> >  	if (vsi->vfta[vid_idx] & vid_bit)
> >  		return 1;
> > @@ -4048,11 +4051,11 @@ i40e_set_vlan_filter(struct i40e_vsi *vsi,  {
> >  	uint32_t vid_idx, vid_bit;
> >
> > -	/* VFTA is 32-bits size array, each element contains 32 vlan bits, Find the
> > -	 *  element first, then find the bits it belongs to
> > -	 */
> > -	vid_idx = (uint32_t) ((vlan_id >> 5 ) & 0x7F);
> > -	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
> > +	if (vlan_id > ETH_VLAN_ID_MAX)
> > +		return;
> > +
> > +	vid_idx = I40E_VFTA_IDX(vlan_id);
> > +	vid_bit = I40E_VFTA_BIT(vlan_id);
> >
> >  	if (on)
> >  		vsi->vfta[vid_idx] |= vid_bit;
> > diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h
> > b/lib/librte_pmd_i40e/i40e_ethdev.h
> > index 96361c2..4f2c16a 100644
> > --- a/lib/librte_pmd_i40e/i40e_ethdev.h
> > +++ b/lib/librte_pmd_i40e/i40e_ethdev.h
> > @@ -50,6 +50,15 @@
> >  #define I40E_DEFAULT_QP_NUM_FDIR  64
> >  #define I40E_UINT32_BIT_SIZE      (CHAR_BIT * sizeof(uint32_t))
> >  #define I40E_VFTA_SIZE            (4096 / I40E_UINT32_BIT_SIZE)
> > +/*
> > + * vlan_id is a 12 bit number.
> > + * The VFTA array is actually a 4096 bit array, 128 of 32bit elements.
> > + * 2^5 = 32. The val of lower 5 bits specifies the bit in the 32bit element.
> > + * The higher 7 bit val specifies VFTA array index.
> > + */
> > +#define I40E_VFTA_BIT(vlan_id)    (1 << ((vlan_id) & 0x1F))
> > +#define I40E_VFTA_IDX(vlan_id)    ((vlan_id) >> 5)
> Why not define the 0x1f and 5 more meaningful in macros?
> 
> Why define it in this header file? It seems that only used in i40e_ethdev.c.
> 
It is a macro for i40e common functionality, as I40E_VFTA_SIZE macro.
> > +
> >  /* Default TC traffic in case DCB is not enabled */
> >  #define I40E_DEFAULT_TCMAP        0x1
> >
> > --
> > 1.8.1.4
> 
> Regards,
> Helin
diff mbox

Patch

diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c
index c0cf3cf..245460f 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev.c
+++ b/lib/librte_pmd_i40e/i40e_ethdev.c
@@ -4033,8 +4033,11 @@  i40e_find_vlan_filter(struct i40e_vsi *vsi,
 {
 	uint32_t vid_idx, vid_bit;
 
-	vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F);
-	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
+	if (vlan_id > ETH_VLAN_ID_MAX)
+		return 0;
+
+	vid_idx = I40E_VFTA_IDX(vlan_id);
+	vid_bit = I40E_VFTA_BIT(vlan_id);
 
 	if (vsi->vfta[vid_idx] & vid_bit)
 		return 1;
@@ -4048,11 +4051,11 @@  i40e_set_vlan_filter(struct i40e_vsi *vsi,
 {
 	uint32_t vid_idx, vid_bit;
 
-	/* VFTA is 32-bits size array, each element contains 32 vlan bits, Find the
-	 *  element first, then find the bits it belongs to
-	 */
-	vid_idx = (uint32_t) ((vlan_id >> 5 ) & 0x7F);
-	vid_bit = (uint32_t) (1 << (vlan_id & 0x1F));
+	if (vlan_id > ETH_VLAN_ID_MAX)
+		return;
+
+	vid_idx = I40E_VFTA_IDX(vlan_id);
+	vid_bit = I40E_VFTA_BIT(vlan_id);
 
 	if (on)
 		vsi->vfta[vid_idx] |= vid_bit;
diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h b/lib/librte_pmd_i40e/i40e_ethdev.h
index 96361c2..4f2c16a 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev.h
+++ b/lib/librte_pmd_i40e/i40e_ethdev.h
@@ -50,6 +50,15 @@ 
 #define I40E_DEFAULT_QP_NUM_FDIR  64
 #define I40E_UINT32_BIT_SIZE      (CHAR_BIT * sizeof(uint32_t))
 #define I40E_VFTA_SIZE            (4096 / I40E_UINT32_BIT_SIZE)
+/*
+ * vlan_id is a 12 bit number.
+ * The VFTA array is actually a 4096 bit array, 128 of 32bit elements.
+ * 2^5 = 32. The val of lower 5 bits specifies the bit in the 32bit element.
+ * The higher 7 bit val specifies VFTA array index.
+ */
+#define I40E_VFTA_BIT(vlan_id)    (1 << ((vlan_id) & 0x1F))
+#define I40E_VFTA_IDX(vlan_id)    ((vlan_id) >> 5)
+
 /* Default TC traffic in case DCB is not enabled */
 #define I40E_DEFAULT_TCMAP        0x1