* [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
@ 2010-05-31 13:11 Richard Cochran
2010-05-31 14:09 ` Krzysztof Halasa
0 siblings, 1 reply; 7+ messages in thread
From: Richard Cochran @ 2010-05-31 13:11 UTC (permalink / raw)
To: Krzysztof Halasa; +Cc: netdev, linux-arm-kernel
This patch adds support for the IFF_ALLMULTI flag. Previously only the
IFF_PROMISC flag was supported.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
---
drivers/net/arm/ixp4xx_eth.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 6be8b09..5d35064 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -739,6 +739,17 @@ static void eth_set_mcast_list(struct net_device *dev)
struct dev_mc_list *mclist;
u8 diffs[ETH_ALEN], *addr;
int i;
+ u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+ if (dev->flags & IFF_ALLMULTI) {
+ for (i = 0; i < ETH_ALEN; i++) {
+ __raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
+ __raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
+ }
+ __raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
+ &port->regs->rx_control[0]);
+ return;
+ }
if ((dev->flags & IFF_PROMISC) || netdev_mc_empty(dev)) {
__raw_writel(DEFAULT_RX_CNTRL0 & ~RX_CNTRL0_ADDR_FLTR_EN,
--
1.6.3.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
2010-05-31 13:11 [PATCH] ixp4xx: Support the all multicast flag on the NPE devices Richard Cochran
@ 2010-05-31 14:09 ` Krzysztof Halasa
2010-05-31 15:34 ` Richard Cochran
0 siblings, 1 reply; 7+ messages in thread
From: Krzysztof Halasa @ 2010-05-31 14:09 UTC (permalink / raw)
To: Richard Cochran; +Cc: netdev, linux-arm-kernel
Richard Cochran <richardcochran@gmail.com> writes:
> This patch adds support for the IFF_ALLMULTI flag. Previously only the
> IFF_PROMISC flag was supported.
>
> Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
> ---
> drivers/net/arm/ixp4xx_eth.c | 11 +++++++++++
> 1 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
> index 6be8b09..5d35064 100644
> --- a/drivers/net/arm/ixp4xx_eth.c
> +++ b/drivers/net/arm/ixp4xx_eth.c
> @@ -739,6 +739,17 @@ static void eth_set_mcast_list(struct net_device *dev)
> struct dev_mc_list *mclist;
> u8 diffs[ETH_ALEN], *addr;
> int i;
> + u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
> +
> + if (dev->flags & IFF_ALLMULTI) {
> + for (i = 0; i < ETH_ALEN; i++) {
> + __raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
> + __raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
> + }
> + __raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
> + &port->regs->rx_control[0]);
> + return;
> + }
Looks good, though I'd prefer a bit of "const" and "static" in the
allmulti[] declaration. Would you please repost? TIA.
--
Krzysztof Halasa
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
2010-05-31 14:09 ` Krzysztof Halasa
@ 2010-05-31 15:34 ` Richard Cochran
2010-05-31 16:09 ` Mikael Pettersson
2010-05-31 16:24 ` Krzysztof Halasa
0 siblings, 2 replies; 7+ messages in thread
From: Richard Cochran @ 2010-05-31 15:34 UTC (permalink / raw)
To: Krzysztof Halasa; +Cc: netdev, linux-arm-kernel
On Mon, May 31, 2010 at 04:09:13PM +0200, Krzysztof Halasa wrote:
> Looks good, though I'd prefer a bit of "const" and "static" in the
> allmulti[] declaration. Would you please repost? TIA.
Okay, here it is.
Thanks,
Richard
This patch adds support for the IFF_ALLMULTI flag. Previously only the
IFF_PROMISC flag was supported.
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
---
drivers/net/arm/ixp4xx_eth.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 6be8b09..42b4361 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -739,6 +739,17 @@ static void eth_set_mcast_list(struct net_device *dev)
struct dev_mc_list *mclist;
u8 diffs[ETH_ALEN], *addr;
int i;
+ static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+ if (dev->flags & IFF_ALLMULTI) {
+ for (i = 0; i < ETH_ALEN; i++) {
+ __raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
+ __raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
+ }
+ __raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
+ &port->regs->rx_control[0]);
+ return;
+ }
if ((dev->flags & IFF_PROMISC) || netdev_mc_empty(dev)) {
__raw_writel(DEFAULT_RX_CNTRL0 & ~RX_CNTRL0_ADDR_FLTR_EN,
--
1.6.3.3
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
2010-05-31 15:34 ` Richard Cochran
@ 2010-05-31 16:09 ` Mikael Pettersson
2010-05-31 16:23 ` Krzysztof Halasa
2010-05-31 16:24 ` Krzysztof Halasa
1 sibling, 1 reply; 7+ messages in thread
From: Mikael Pettersson @ 2010-05-31 16:09 UTC (permalink / raw)
To: Richard Cochran; +Cc: Krzysztof Halasa, netdev, linux-arm-kernel
Richard Cochran writes:
> On Mon, May 31, 2010 at 04:09:13PM +0200, Krzysztof Halasa wrote:
> > Looks good, though I'd prefer a bit of "const" and "static" in the
> > allmulti[] declaration. Would you please repost? TIA.
>
> Okay, here it is.
>
> Thanks,
> Richard
>
> This patch adds support for the IFF_ALLMULTI flag. Previously only the
> IFF_PROMISC flag was supported.
>
> Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
> ---
> drivers/net/arm/ixp4xx_eth.c | 11 +++++++++++
> 1 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
> index 6be8b09..42b4361 100644
> --- a/drivers/net/arm/ixp4xx_eth.c
> +++ b/drivers/net/arm/ixp4xx_eth.c
> @@ -739,6 +739,17 @@ static void eth_set_mcast_list(struct net_device *dev)
> struct dev_mc_list *mclist;
> u8 diffs[ETH_ALEN], *addr;
> int i;
> + static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
> +
> + if (dev->flags & IFF_ALLMULTI) {
> + for (i = 0; i < ETH_ALEN; i++) {
> + __raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
> + __raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
Seems a bit excessive to define a lookup table for a computation
that amounts to nothing more than "i ? 0 : 1".
Something like the following would IMO be cleaner:
if (...) {
for (...) {
u8 multi = i ? 0x00 : 0x01;
__raw_writel(multi, ...);
...
}
}
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
2010-05-31 16:09 ` Mikael Pettersson
@ 2010-05-31 16:23 ` Krzysztof Halasa
0 siblings, 0 replies; 7+ messages in thread
From: Krzysztof Halasa @ 2010-05-31 16:23 UTC (permalink / raw)
To: Mikael Pettersson; +Cc: Richard Cochran, netdev, linux-arm-kernel
Mikael Pettersson <mikpe@it.uu.se> writes:
> > + static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
> > +
> > + if (dev->flags & IFF_ALLMULTI) {
> > + for (i = 0; i < ETH_ALEN; i++) {
> > + __raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
> > + __raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
>
> Seems a bit excessive to define a lookup table for a computation
> that amounts to nothing more than "i ? 0 : 1".
>
> Something like the following would IMO be cleaner:
>
> if (...) {
> for (...) {
> u8 multi = i ? 0x00 : 0x01;
> __raw_writel(multi, ...);
> ...
> }
> }
Well... cleaner = easier to understand?
I don't think so, the array is clearly a MAC address (mask) and the
"i ? 0x00 : 0x01" (which one could simply write as "!i") requires some
additional attention.
It's a slow "admin" path so an unmeasurable speedup doesn't mean
anything.
--
Krzysztof Halasa
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
2010-05-31 15:34 ` Richard Cochran
2010-05-31 16:09 ` Mikael Pettersson
@ 2010-05-31 16:24 ` Krzysztof Halasa
2010-06-01 7:18 ` David Miller
1 sibling, 1 reply; 7+ messages in thread
From: Krzysztof Halasa @ 2010-05-31 16:24 UTC (permalink / raw)
To: Richard Cochran; +Cc: netdev, linux-arm-kernel
Richard Cochran <richardcochran@gmail.com> writes:
> This patch adds support for the IFF_ALLMULTI flag. Previously only the
> IFF_PROMISC flag was supported.
>
> Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
> ---
> drivers/net/arm/ixp4xx_eth.c | 11 +++++++++++
> 1 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
> index 6be8b09..42b4361 100644
> --- a/drivers/net/arm/ixp4xx_eth.c
> +++ b/drivers/net/arm/ixp4xx_eth.c
> @@ -739,6 +739,17 @@ static void eth_set_mcast_list(struct net_device *dev)
> struct dev_mc_list *mclist;
> u8 diffs[ETH_ALEN], *addr;
> int i;
> + static const u8 allmulti[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 };
> +
> + if (dev->flags & IFF_ALLMULTI) {
> + for (i = 0; i < ETH_ALEN; i++) {
> + __raw_writel(allmulti[i], &port->regs->mcast_addr[i]);
> + __raw_writel(allmulti[i], &port->regs->mcast_mask[i]);
> + }
> + __raw_writel(DEFAULT_RX_CNTRL0 | RX_CNTRL0_ADDR_FLTR_EN,
> + &port->regs->rx_control[0]);
> + return;
> + }
>
> if ((dev->flags & IFF_PROMISC) || netdev_mc_empty(dev)) {
> __raw_writel(DEFAULT_RX_CNTRL0 & ~RX_CNTRL0_ADDR_FLTR_EN,
Acked-By: Krzysztof Halasa <khc@pm.waw.pl>
--
Krzysztof Halasa
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [PATCH] ixp4xx: Support the all multicast flag on the NPE devices.
2010-05-31 16:24 ` Krzysztof Halasa
@ 2010-06-01 7:18 ` David Miller
0 siblings, 0 replies; 7+ messages in thread
From: David Miller @ 2010-06-01 7:18 UTC (permalink / raw)
To: khc; +Cc: richardcochran, netdev, linux-arm-kernel
From: Krzysztof Halasa <khc@pm.waw.pl>
Date: Mon, 31 May 2010 18:24:09 +0200
> Richard Cochran <richardcochran@gmail.com> writes:
>
>> This patch adds support for the IFF_ALLMULTI flag. Previously only the
>> IFF_PROMISC flag was supported.
>>
>> Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
...
> Acked-By: Krzysztof Halasa <khc@pm.waw.pl>
Applied.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2010-05-31 13:11 [PATCH] ixp4xx: Support the all multicast flag on the NPE devices Richard Cochran
2010-05-31 14:09 ` Krzysztof Halasa
2010-05-31 15:34 ` Richard Cochran
2010-05-31 16:09 ` Mikael Pettersson
2010-05-31 16:23 ` Krzysztof Halasa
2010-05-31 16:24 ` Krzysztof Halasa
2010-06-01 7:18 ` David Miller
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