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sfc: refactor code in efx_ef10_set_mac_address()

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Re-organize the structure of error handling to avoid having
to duplicate the netif_err() around the ifdefs.

The only change to the behaviour of the error-handling is that
the PF's data structure to record VF details should only be
updated if the original command succeeded.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Pieczko 2015-07-07 11:37:00 +01:00 committed by David S. Miller
parent b5a983f314
commit 9e9f665a18
1 changed files with 20 additions and 25 deletions
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45
drivers/net/ethernet/sfc/ef10.c
View file

@ -3829,38 +3829,27 @@ static int efx_ef10_set_mac_address(struct efx_nic *efx)
efx_net_open(efx->net_dev);
netif_device_attach(efx->net_dev);
#if !defined(CONFIG_SFC_SRIOV)
if (rc == -EPERM)
netif_err(efx, drv, efx->net_dev,
"Cannot change MAC address; use sfboot to enable mac-spoofing"
" on this interface\n");
#else
if (rc == -EPERM) {
#ifdef CONFIG_SFC_SRIOV
if (efx->pci_dev->is_virtfn && efx->pci_dev->physfn) {
struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
/* Switch to PF and change MAC address on vport */
if (efx->pci_dev->is_virtfn && pci_dev_pf) {
struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
if (rc == -EPERM) {
struct efx_nic *efx_pf;
if (!efx_ef10_sriov_set_vf_mac(efx_pf,
/* Switch to PF and change MAC address on vport */
efx_pf = pci_get_drvdata(pci_dev_pf);
rc = efx_ef10_sriov_set_vf_mac(efx_pf,
nic_data->vf_index,
efx->net_dev->dev_addr))
return 0;
}
netif_err(efx, drv, efx->net_dev,
"Cannot change MAC address; use sfboot to enable mac-spoofing"
" on this interface\n");
} else if (efx->pci_dev->is_virtfn) {
/* Successfully changed by VF (with MAC spoofing), so update the
* parent PF if possible.
*/
struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
if (pci_dev_pf) {
efx->net_dev->dev_addr);
} else if (!rc) {
struct efx_nic *efx_pf = pci_get_drvdata(pci_dev_pf);
struct efx_ef10_nic_data *nic_data = efx_pf->nic_data;
unsigned int i;
/* MAC address successfully changed by VF (with MAC
* spoofing) so update the parent PF if possible.
*/
for (i = 0; i < efx_pf->vf_count; ++i) {
struct ef10_vf *vf = nic_data->vf + i;
@ -3871,8 +3860,14 @@ static int efx_ef10_set_mac_address(struct efx_nic *efx)
}
}
}
}
} else
#endif
if (rc == -EPERM) {
netif_err(efx, drv, efx->net_dev,
"Cannot change MAC address; use sfboot to enable"
" mac-spoofing on this interface\n");
}
return rc;
}