* [PATCH v2] tg3: optionally get mac address from devicetree
@ 2018-11-14 13:52 thesven73
2018-11-15 20:00 ` Andrew Lunn
0 siblings, 1 reply; 3+ messages in thread
From: thesven73 @ 2018-11-14 13:52 UTC (permalink / raw)
To: svendev, siva.kallam, prashant, mchan, andrew
Cc: davem, linux-kernel, netdev, arnd
If the tg3 has a device node, and that node contains a valid
mac address property, use that as the tg3's mac address.
This behaviour was previously only present on SPARC, using a
conditional compile (#ifdef CONFIG_SPARC), presumably because
at the time, devicetree nodes for pci devices only worked on
SPARC. However, this has recently been made universal, see
commit 98d9f30c820d ("pci/of: Match PCI devices to OF nodes dynamically")
Devicetree example:
(see Documentation/devicetree/bindings/pci/pci.txt)
&pcie {
host@0 {
#address-cells = <3>;
#size-cells = <2>;
reg = <0 0 0 0 0>;
bcm5778: bcm5778@0 {
reg = <0 0 0 0 0>;
mac-address = [CA 11 AB 1E 10 01];
};
};
};
Signed-off-by: Sven Van Asbroeck <svendev@arcx.com>
---
v2:
removed redundant call to is_valid_ether_addr()
drivers/net/ethernet/broadcom/tg3.c | 29 +++++++++++++----------------
1 file changed, 13 insertions(+), 16 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 89295306f161..e49112cac1fd 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -55,6 +55,7 @@
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/crc32poly.h>
+#include <linux/of_net.h>
#include <net/checksum.h>
#include <net/ip.h>
@@ -16959,23 +16960,21 @@ static int tg3_get_invariants(struct tg3 *tp, const struct pci_device_id *ent)
return err;
}
-#ifdef CONFIG_SPARC
-static int tg3_get_macaddr_sparc(struct tg3 *tp)
+static int tg3_of_get_macaddr(struct tg3 *tp)
{
- struct net_device *dev = tp->dev;
- struct pci_dev *pdev = tp->pdev;
- struct device_node *dp = pci_device_to_OF_node(pdev);
- const unsigned char *addr;
- int len;
+ struct device_node *np = pci_device_to_OF_node(tp->pdev);
+ const void *mac;
- addr = of_get_property(dp, "local-mac-address", &len);
- if (addr && len == ETH_ALEN) {
- memcpy(dev->dev_addr, addr, ETH_ALEN);
- return 0;
- }
- return -ENODEV;
+ if (!np)
+ return -ENODEV;
+ mac = of_get_mac_address(np);
+ if (!mac)
+ return -EINVAL;
+ memcpy(tp->dev->dev_addr, mac, ETH_ALEN);
+ return 0;
}
+#ifdef CONFIG_SPARC
static int tg3_get_default_macaddr_sparc(struct tg3 *tp)
{
struct net_device *dev = tp->dev;
@@ -16992,10 +16991,8 @@ static int tg3_get_device_address(struct tg3 *tp)
int addr_ok = 0;
int err;
-#ifdef CONFIG_SPARC
- if (!tg3_get_macaddr_sparc(tp))
+ if (!tg3_of_get_macaddr(tp))
return 0;
-#endif
if (tg3_flag(tp, IS_SSB_CORE)) {
err = ssb_gige_get_macaddr(tp->pdev, &dev->dev_addr[0]);
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] tg3: optionally get mac address from devicetree
2018-11-14 13:52 [PATCH v2] tg3: optionally get mac address from devicetree thesven73
@ 2018-11-15 20:00 ` Andrew Lunn
2018-11-17 15:58 ` Sven Van Asbroeck
0 siblings, 1 reply; 3+ messages in thread
From: Andrew Lunn @ 2018-11-15 20:00 UTC (permalink / raw)
To: thesven73
Cc: svendev, siva.kallam, prashant, mchan, davem, linux-kernel, netdev, arnd
On Wed, Nov 14, 2018 at 08:52:01AM -0500, thesven73@gmail.com wrote:
> If the tg3 has a device node, and that node contains a valid
> mac address property, use that as the tg3's mac address.
>
> This behaviour was previously only present on SPARC, using a
> conditional compile (#ifdef CONFIG_SPARC), presumably because
> at the time, devicetree nodes for pci devices only worked on
> SPARC. However, this has recently been made universal, see
> commit 98d9f30c820d ("pci/of: Match PCI devices to OF nodes dynamically")
>
> Devicetree example:
> (see Documentation/devicetree/bindings/pci/pci.txt)
>
> &pcie {
> host@0 {
> #address-cells = <3>;
> #size-cells = <2>;
> reg = <0 0 0 0 0>;
> bcm5778: bcm5778@0 {
> reg = <0 0 0 0 0>;
> mac-address = [CA 11 AB 1E 10 01];
> };
> };
> };
>
> Signed-off-by: Sven Van Asbroeck <svendev@arcx.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] tg3: optionally get mac address from devicetree
2018-11-15 20:00 ` Andrew Lunn
@ 2018-11-17 15:58 ` Sven Van Asbroeck
0 siblings, 0 replies; 3+ messages in thread
From: Sven Van Asbroeck @ 2018-11-17 15:58 UTC (permalink / raw)
To: Andrew Lunn
Cc: Sven Van Asbroeck, siva.kallam, prashant, mchan, David Miller,
Linux Kernel Mailing List, netdev, Arnd Bergmann
Please this cancel this patch. As suggested by Dave Miller, it has
been replaced by:
[PATCH v1] tg3: optionally use eth_platform_get_mac_address() to get mac address
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-11-17 15:58 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-14 13:52 [PATCH v2] tg3: optionally get mac address from devicetree thesven73
2018-11-15 20:00 ` Andrew Lunn
2018-11-17 15:58 ` Sven Van Asbroeck
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).