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nvethernet: support to change MAC address

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Adds support for dynamic MAC address change.
Gets MAC address from userspace and update in
OSI core structure. Automatically MAC address
will be picked up from OSI core structure and
program the same in HW registers.

Bug 200512251

Change-Id: Ie49fd56c3d219637fc4bf33c818c380a8f1c7bf3
Signed-off-by: Bhadram Varka <vbhadram@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2080718
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Narayan Reddy <narayanr@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Bhadram Varka
2019-03-25 14:16:39 +05:30
committed by Revanth Kumar Uppala
parent f9904e66af
commit b023f0c0f8
1 changed files with 34 additions and 0 deletions
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34
drivers/net/ethernet/nvidia/nvethernet/ether_linux.c
View File

@@ -1117,11 +1117,45 @@ static int ether_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
return ret;
}
/**
* ether_set_mac_addr - Set MAC address
* @ndev: Network device structure
* @addr: MAC address to be programmed.
*
* Algorithm:
* 1) Checks whether given MAC address is valid or not
* 2) Stores the MAC address in OSI core structure
*
* Dependencies: Ethernet interface need to be down to set MAC address
*
* Protection: None.
*
* Return: 0 - success, negative value - failure.
*/
static int ether_set_mac_addr(struct net_device *ndev, void *addr)
{
struct ether_priv_data *pdata = netdev_priv(ndev);
struct osi_core_priv_data *osi_core = pdata->osi_core;
int ret = 0;
ret = eth_mac_addr(ndev, addr);
if (ret) {
dev_err(pdata->dev, "failed to set MAC address\n");
return ret;
}
/* MAC address programmed in HW registers during osi_hw_core_init() */
memcpy(osi_core->mac_addr, ndev->dev_addr, ETH_ALEN);
return ret;
}
static const struct net_device_ops ether_netdev_ops = {
.ndo_open = ether_open,
.ndo_stop = ether_close,
.ndo_start_xmit = ether_start_xmit,
.ndo_do_ioctl = ether_ioctl,
.ndo_set_mac_address = ether_set_mac_addr,
};
/**