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OpenCloudOS-Kernel
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sfc: When disabling the NIC, close the device rather than unregistering it 

This should reduce user confusion and may also aid recovery (ioctls
will still be available).

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2008-12-26 13:48:51 -08:00 committed by David S. Miller
parent 307505e9a4
commit f4bd954e7c
1 changed files with 23 additions and 24 deletions
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47
drivers/net/sfc/efx.c
View File

@ -1332,6 +1332,8 @@ static int efx_net_open(struct net_device *net_dev)
EFX_LOG(efx, "opening device %s on CPU %d\n", net_dev->name,
raw_smp_processor_id());
if (efx->state == STATE_DISABLED)
return -EIO;
if (efx->phy_mode & PHY_MODE_SPECIAL)
return -EBUSY;
@ -1350,10 +1352,12 @@ static int efx_net_stop(struct net_device *net_dev)
EFX_LOG(efx, "closing %s on CPU %d\n", net_dev->name,
raw_smp_processor_id());
/* Stop the device and flush all the channels */
efx_stop_all(efx);
efx_fini_channels(efx);
efx_init_channels(efx);
if (efx->state != STATE_DISABLED) {
/* Stop the device and flush all the channels */
efx_stop_all(efx);
efx_fini_channels(efx);
efx_init_channels(efx);
}
return 0;
}
@ -1685,7 +1689,7 @@ static int efx_reset(struct efx_nic *efx)
{
struct ethtool_cmd ecmd;
enum reset_type method = efx->reset_pending;
int rc;
int rc = 0;
/* Serialise with kernel interfaces */
rtnl_lock();
@ -1694,7 +1698,7 @@ static int efx_reset(struct efx_nic *efx)
* flag set so that efx_pci_probe_main will be retried */
if (efx->state != STATE_RUNNING) {
EFX_INFO(efx, "scheduled reset quenched. NIC not RUNNING\n");
goto unlock_rtnl;
goto out_unlock;
}
EFX_INFO(efx, "resetting (%d)\n", method);
@ -1704,7 +1708,7 @@ static int efx_reset(struct efx_nic *efx)
rc = falcon_reset_hw(efx, method);
if (rc) {
EFX_ERR(efx, "failed to reset hardware\n");
goto fail;
goto out_disable;
}
/* Allow resets to be rescheduled. */
@ -1718,28 +1722,23 @@ static int efx_reset(struct efx_nic *efx)
/* Leave device stopped if necessary */
if (method == RESET_TYPE_DISABLE) {
efx_reset_up(efx, &ecmd, false);
rc = -EIO;
goto fail;
} else {
rc = efx_reset_up(efx, &ecmd, true);
}
rc = efx_reset_up(efx, &ecmd, true);
if (rc)
goto disable;
out_disable:
if (rc) {
EFX_ERR(efx, "has been disabled\n");
efx->state = STATE_DISABLED;
dev_close(efx->net_dev);
} else {
EFX_LOG(efx, "reset complete\n");
}
EFX_LOG(efx, "reset complete\n");
unlock_rtnl:
out_unlock:
rtnl_unlock();
return 0;
fail:
efx_reset_up(efx, &ecmd, false);
disable:
EFX_ERR(efx, "has been disabled\n");
efx->state = STATE_DISABLED;
rtnl_unlock();
efx_unregister_netdev(efx);
efx_fini_port(efx);
return rc;
}