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Date: Fri, 27 Jan 2012 20:50:52 +0000
From: Ben Hutchings <bhutchings@...arflare.com>
To: David Miller <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, <linux-net-drivers@...arflare.com>
Subject: [PATCH net-next 25/32] sfc: Remove remnants of on-load self-test
The out-of-tree version of the sfc driver used to run a self-test on
each device before registering it. Although this was never included
in-tree, some functions have checks for this special case which is not
really possible.
Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
---
drivers/net/ethernet/sfc/efx.c | 34 +++++++++++++---------------------
drivers/net/ethernet/sfc/nic.c | 6 ++----
drivers/net/ethernet/sfc/selftest.c | 12 ++++--------
drivers/net/ethernet/sfc/tx.c | 4 +---
4 files changed, 20 insertions(+), 36 deletions(-)
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 9d4ab5e..4f412fe 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -855,10 +855,8 @@ int __efx_reconfigure_port(struct efx_nic *efx)
WARN_ON(!mutex_is_locked(&efx->mac_lock));
/* Serialise the promiscuous flag with efx_set_multicast_list. */
- if (efx_dev_registered(efx)) {
- netif_addr_lock_bh(efx->net_dev);
- netif_addr_unlock_bh(efx->net_dev);
- }
+ netif_addr_lock_bh(efx->net_dev);
+ netif_addr_unlock_bh(efx->net_dev);
/* Disable PHY transmit in mac level loopbacks */
phy_mode = efx->phy_mode;
@@ -981,10 +979,8 @@ static void efx_stop_port(struct efx_nic *efx)
mutex_unlock(&efx->mac_lock);
/* Serialise against efx_set_multicast_list() */
- if (efx_dev_registered(efx)) {
- netif_addr_lock_bh(efx->net_dev);
- netif_addr_unlock_bh(efx->net_dev);
- }
+ netif_addr_lock_bh(efx->net_dev);
+ netif_addr_unlock_bh(efx->net_dev);
}
static void efx_fini_port(struct efx_nic *efx)
@@ -1394,14 +1390,14 @@ static void efx_start_all(struct efx_nic *efx)
return;
if ((efx->state != STATE_RUNNING) && (efx->state != STATE_INIT))
return;
- if (efx_dev_registered(efx) && !netif_running(efx->net_dev))
+ if (!netif_running(efx->net_dev))
return;
/* Mark the port as enabled so port reconfigurations can start, then
* restart the transmit interface early so the watchdog timer stops */
efx_start_port(efx);
- if (efx_dev_registered(efx) && netif_device_present(efx->net_dev))
+ if (netif_device_present(efx->net_dev))
netif_tx_wake_all_queues(efx->net_dev);
efx_for_each_channel(channel, efx)
@@ -1492,11 +1488,9 @@ static void efx_stop_all(struct efx_nic *efx)
/* Stop the kernel transmit interface late, so the watchdog
* timer isn't ticking over the flush */
- if (efx_dev_registered(efx)) {
- netif_tx_stop_all_queues(efx->net_dev);
- netif_tx_lock_bh(efx->net_dev);
- netif_tx_unlock_bh(efx->net_dev);
- }
+ netif_tx_stop_all_queues(efx->net_dev);
+ netif_tx_lock_bh(efx->net_dev);
+ netif_tx_unlock_bh(efx->net_dev);
}
static void efx_remove_all(struct efx_nic *efx)
@@ -2018,11 +2012,9 @@ static void efx_unregister_netdev(struct efx_nic *efx)
efx_release_tx_buffers(tx_queue);
}
- if (efx_dev_registered(efx)) {
- strlcpy(efx->name, pci_name(efx->pci_dev), sizeof(efx->name));
- device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_type);
- unregister_netdev(efx->net_dev);
- }
+ strlcpy(efx->name, pci_name(efx->pci_dev), sizeof(efx->name));
+ device_remove_file(&efx->pci_dev->dev, &dev_attr_phy_type);
+ unregister_netdev(efx->net_dev);
}
/**************************************************************************
@@ -2438,7 +2430,7 @@ static int efx_pci_probe_main(struct efx_nic *efx)
/* NIC initialisation
*
* This is called at module load (or hotplug insertion,
- * theoretically). It sets up PCI mappings, tests and resets the NIC,
+ * theoretically). It sets up PCI mappings, resets the NIC,
* sets up and registers the network devices with the kernel and hooks
* the interrupt service routine. It does not prepare the device for
* transmission; this is left to the first time one of the network
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index de7aa1c..cd250f1 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -726,11 +726,9 @@ efx_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
tx_queue = efx_channel_get_tx_queue(
channel, tx_ev_q_label % EFX_TXQ_TYPES);
- if (efx_dev_registered(efx))
- netif_tx_lock(efx->net_dev);
+ netif_tx_lock(efx->net_dev);
efx_notify_tx_desc(tx_queue);
- if (efx_dev_registered(efx))
- netif_tx_unlock(efx->net_dev);
+ netif_tx_unlock(efx->net_dev);
} else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_PKT_ERR) &&
EFX_WORKAROUND_10727(efx)) {
efx_schedule_reset(efx, RESET_TYPE_TX_DESC_FETCH);
diff --git a/drivers/net/ethernet/sfc/selftest.c b/drivers/net/ethernet/sfc/selftest.c
index 7def480..febe2a9 100644
--- a/drivers/net/ethernet/sfc/selftest.c
+++ b/drivers/net/ethernet/sfc/selftest.c
@@ -397,11 +397,9 @@ static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
* interrupt handler. */
smp_wmb();
- if (efx_dev_registered(efx))
- netif_tx_lock_bh(efx->net_dev);
+ netif_tx_lock_bh(efx->net_dev);
rc = efx_enqueue_skb(tx_queue, skb);
- if (efx_dev_registered(efx))
- netif_tx_unlock_bh(efx->net_dev);
+ netif_tx_unlock_bh(efx->net_dev);
if (rc != NETDEV_TX_OK) {
netif_err(efx, drv, efx->net_dev,
@@ -442,8 +440,7 @@ static int efx_end_loopback(struct efx_tx_queue *tx_queue,
int tx_done = 0, rx_good, rx_bad;
int i, rc = 0;
- if (efx_dev_registered(efx))
- netif_tx_lock_bh(efx->net_dev);
+ netif_tx_lock_bh(efx->net_dev);
/* Count the number of tx completions, and decrement the refcnt. Any
* skbs not already completed will be free'd when the queue is flushed */
@@ -454,8 +451,7 @@ static int efx_end_loopback(struct efx_tx_queue *tx_queue,
dev_kfree_skb_any(skb);
}
- if (efx_dev_registered(efx))
- netif_tx_unlock_bh(efx->net_dev);
+ netif_tx_unlock_bh(efx->net_dev);
/* Check TX completion and received packet counts */
rx_good = atomic_read(&state->rx_good);
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 72f0fbc..5cb81fa 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -446,10 +446,8 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
likely(efx->port_enabled) &&
likely(netif_device_present(efx->net_dev))) {
fill_level = tx_queue->insert_count - tx_queue->read_count;
- if (fill_level < EFX_TXQ_THRESHOLD(efx)) {
- EFX_BUG_ON_PARANOID(!efx_dev_registered(efx));
+ if (fill_level < EFX_TXQ_THRESHOLD(efx))
netif_tx_wake_queue(tx_queue->core_txq);
- }
}
/* Check whether the hardware queue is now empty */
--
1.7.7.5
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
--
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