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authorBen Hutchings <bhutchings@solarflare.com>2008-12-26 13:48:51 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-26 13:48:51 -0800
commitf4bd954e7c24063b15fa9abc8b4b1242772928ed (patch)
treefc4d54812802e29120ab0e3afac42f4722f0c4ab
parent307505e9a4ce0b13b2f996385669039806e07390 (diff)
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>
-rw-r--r--drivers/net/sfc/efx.c47
1 files changed, 23 insertions, 24 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 46c2a8b0a88..5cc59e654d7 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -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;
-
- EFX_LOG(efx, "reset complete\n");
- unlock_rtnl:
- rtnl_unlock();
- return 0;
-
- fail:
- efx_reset_up(efx, &ecmd, false);
- disable:
- EFX_ERR(efx, "has been disabled\n");
- efx->state = STATE_DISABLED;
+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");
+ }
+out_unlock:
rtnl_unlock();
- efx_unregister_netdev(efx);
- efx_fini_port(efx);
return rc;
}