1 files changed, 4 insertions, 371 deletions

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 40d1e8ef672d..a1af42dde450 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -43,56 +43,6 @@
  **************************************************************************
  */
 
-/* Loopback mode names (see LOOPBACK_MODE()) */
-const unsigned int efx_loopback_mode_max = LOOPBACK_MAX;
-const char *const efx_loopback_mode_names[] = {
-	[LOOPBACK_NONE]		= "NONE",
-	[LOOPBACK_DATA]		= "DATAPATH",
-	[LOOPBACK_GMAC]		= "GMAC",
-	[LOOPBACK_XGMII]	= "XGMII",
-	[LOOPBACK_XGXS]		= "XGXS",
-	[LOOPBACK_XAUI]		= "XAUI",
-	[LOOPBACK_GMII]		= "GMII",
-	[LOOPBACK_SGMII]	= "SGMII",
-	[LOOPBACK_XGBR]		= "XGBR",
-	[LOOPBACK_XFI]		= "XFI",
-	[LOOPBACK_XAUI_FAR]	= "XAUI_FAR",
-	[LOOPBACK_GMII_FAR]	= "GMII_FAR",
-	[LOOPBACK_SGMII_FAR]	= "SGMII_FAR",
-	[LOOPBACK_XFI_FAR]	= "XFI_FAR",
-	[LOOPBACK_GPHY]		= "GPHY",
-	[LOOPBACK_PHYXS]	= "PHYXS",
-	[LOOPBACK_PCS]		= "PCS",
-	[LOOPBACK_PMAPMD]	= "PMA/PMD",
-	[LOOPBACK_XPORT]	= "XPORT",
-	[LOOPBACK_XGMII_WS]	= "XGMII_WS",
-	[LOOPBACK_XAUI_WS]	= "XAUI_WS",
-	[LOOPBACK_XAUI_WS_FAR]  = "XAUI_WS_FAR",
-	[LOOPBACK_XAUI_WS_NEAR] = "XAUI_WS_NEAR",
-	[LOOPBACK_GMII_WS]	= "GMII_WS",
-	[LOOPBACK_XFI_WS]	= "XFI_WS",
-	[LOOPBACK_XFI_WS_FAR]	= "XFI_WS_FAR",
-	[LOOPBACK_PHYXS_WS]	= "PHYXS_WS",
-};
-
-const unsigned int efx_reset_type_max = RESET_TYPE_MAX;
-const char *const efx_reset_type_names[] = {
-	[RESET_TYPE_INVISIBLE]          = "INVISIBLE",
-	[RESET_TYPE_ALL]                = "ALL",
-	[RESET_TYPE_RECOVER_OR_ALL]     = "RECOVER_OR_ALL",
-	[RESET_TYPE_WORLD]              = "WORLD",
-	[RESET_TYPE_RECOVER_OR_DISABLE] = "RECOVER_OR_DISABLE",
-	[RESET_TYPE_DATAPATH]           = "DATAPATH",
-	[RESET_TYPE_MC_BIST]		= "MC_BIST",
-	[RESET_TYPE_DISABLE]            = "DISABLE",
-	[RESET_TYPE_TX_WATCHDOG]        = "TX_WATCHDOG",
-	[RESET_TYPE_INT_ERROR]          = "INT_ERROR",
-	[RESET_TYPE_DMA_ERROR]          = "DMA_ERROR",
-	[RESET_TYPE_TX_SKIP]            = "TX_SKIP",
-	[RESET_TYPE_MC_FAILURE]         = "MC_FAILURE",
-	[RESET_TYPE_MCDI_TIMEOUT]	= "MCDI_TIMEOUT (FLR)",
-};
-
 /* UDP tunnel type names */
 static const char *const efx_udp_tunnel_type_names[] = {
 	[TUNNEL_ENCAP_UDP_PORT_ENTRY_VXLAN] = "vxlan",
@@ -108,12 +58,6 @@ void efx_get_udp_tunnel_type_name(u16 type, char *buf, size_t buflen)
 		snprintf(buf, buflen, "type %d", type);
 }
 
-/* How often and how many times to poll for a reset while waiting for a
- * BIST that another function started to complete.
- */
-#define BIST_WAIT_DELAY_MS	100
-#define BIST_WAIT_DELAY_COUNT	100
-
 /**************************************************************************
  *
  * Configurable values
@@ -138,16 +82,6 @@ MODULE_PARM_DESC(efx_separate_tx_channels,
  */
 static int napi_weight = 64;
 
-/* This is the time (in jiffies) between invocations of the hardware
- * monitor.
- * On Falcon-based NICs, this will:
- * - Check the on-board hardware monitor;
- * - Poll the link state and reconfigure the hardware as necessary.
- * On Siena-based NICs for power systems with EEH support, this will give EEH a
- * chance to start.
- */
-static unsigned int efx_monitor_interval = 1 * HZ;
-
 /* Initial interrupt moderation settings.  They can be modified after
  * module load with ethtool.
  *
@@ -830,19 +764,6 @@ void efx_link_set_wanted_fc(struct efx_nic *efx, u8 wanted_fc)
 
 static void efx_fini_port(struct efx_nic *efx);
 
-/* Asynchronous work item for changing MAC promiscuity and multicast
- * hash.  Avoid a drain/rx_ingress enable by reconfiguring the current
- * MAC directly. */
-static void efx_mac_work(struct work_struct *data)
-{
-	struct efx_nic *efx = container_of(data, struct efx_nic, mac_work);
-
-	mutex_lock(&efx->mac_lock);
-	if (efx->port_enabled)
-		efx_mac_reconfigure(efx);
-	mutex_unlock(&efx->mac_lock);
-}
-
 static int efx_probe_port(struct efx_nic *efx)
 {
 	int rc;
@@ -994,94 +915,6 @@ static void efx_dissociate(struct efx_nic *efx)
 	}
 }
 
-/* This configures the PCI device to enable I/O and DMA. */
-int efx_init_io(struct efx_nic *efx, int bar, dma_addr_t dma_mask,
-		unsigned int mem_map_size)
-{
-	struct pci_dev *pci_dev = efx->pci_dev;
-	int rc;
-
-	netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n");
-
-	rc = pci_enable_device(pci_dev);
-	if (rc) {
-		netif_err(efx, probe, efx->net_dev,
-			  "failed to enable PCI device\n");
-		goto fail1;
-	}
-
-	pci_set_master(pci_dev);
-
-	/* Set the PCI DMA mask.  Try all possibilities from our genuine mask
-	 * down to 32 bits, because some architectures will allow 40 bit
-	 * masks event though they reject 46 bit masks.
-	 */
-	while (dma_mask > 0x7fffffffUL) {
-		rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
-		if (rc == 0)
-			break;
-		dma_mask >>= 1;
-	}
-	if (rc) {
-		netif_err(efx, probe, efx->net_dev,
-			  "could not find a suitable DMA mask\n");
-		goto fail2;
-	}
-	netif_dbg(efx, probe, efx->net_dev,
-		  "using DMA mask %llx\n", (unsigned long long) dma_mask);
-
-	efx->membase_phys = pci_resource_start(efx->pci_dev, bar);
-	rc = pci_request_region(pci_dev, bar, "sfc");
-	if (rc) {
-		netif_err(efx, probe, efx->net_dev,
-			  "request for memory BAR failed\n");
-		rc = -EIO;
-		goto fail3;
-	}
-	efx->membase = ioremap_nocache(efx->membase_phys, mem_map_size);
-	if (!efx->membase) {
-		netif_err(efx, probe, efx->net_dev,
-			  "could not map memory BAR at %llx+%x\n",
-			  (unsigned long long)efx->membase_phys, mem_map_size);
-		rc = -ENOMEM;
-		goto fail4;
-	}
-	netif_dbg(efx, probe, efx->net_dev,
-		  "memory BAR at %llx+%x (virtual %p)\n",
-		  (unsigned long long)efx->membase_phys, mem_map_size,
-		  efx->membase);
-
-	return 0;
-
- fail4:
-	pci_release_region(efx->pci_dev, bar);
- fail3:
-	efx->membase_phys = 0;
- fail2:
-	pci_disable_device(efx->pci_dev);
- fail1:
-	return rc;
-}
-
-void efx_fini_io(struct efx_nic *efx, int bar)
-{
-	netif_dbg(efx, drv, efx->net_dev, "shutting down I/O\n");
-
-	if (efx->membase) {
-		iounmap(efx->membase);
-		efx->membase = NULL;
-	}
-
-	if (efx->membase_phys) {
-		pci_release_region(efx->pci_dev, bar);
-		efx->membase_phys = 0;
-	}
-
-	/* Don't disable bus-mastering if VFs are assigned */
-	if (!pci_vfs_assigned(efx->pci_dev))
-		pci_disable_device(efx->pci_dev);
-}
-
 void efx_set_default_rx_indir_table(struct efx_nic *efx,
 				    struct efx_rss_context *ctx)
 {
@@ -1857,43 +1690,6 @@ void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
 
 /**************************************************************************
  *
- * Hardware monitor
- *
- **************************************************************************/
-
-/* Run periodically off the general workqueue */
-static void efx_monitor(struct work_struct *data)
-{
-	struct efx_nic *efx = container_of(data, struct efx_nic,
-					   monitor_work.work);
-
-	netif_vdbg(efx, timer, efx->net_dev,
-		   "hardware monitor executing on CPU %d\n",
-		   raw_smp_processor_id());
-	BUG_ON(efx->type->monitor == NULL);
-
-	/* If the mac_lock is already held then it is likely a port
-	 * reconfiguration is already in place, which will likely do
-	 * most of the work of monitor() anyway. */
-	if (mutex_trylock(&efx->mac_lock)) {
-		if (efx->port_enabled)
-			efx->type->monitor(efx);
-		mutex_unlock(&efx->mac_lock);
-	}
-
-	queue_delayed_work(efx->workqueue, &efx->monitor_work,
-			   efx_monitor_interval);
-}
-
-void efx_start_monitor(struct efx_nic *efx)
-{
-	if (efx->type->monitor)
-		queue_delayed_work(efx->workqueue, &efx->monitor_work,
-				   efx_monitor_interval);
-}
-
-/**************************************************************************
- *
  * ioctls
  *
  *************************************************************************/
@@ -2479,65 +2275,6 @@ static void efx_unregister_netdev(struct efx_nic *efx)
 
 /**************************************************************************
  *
- * Device reset and suspend
- *
- **************************************************************************/
-
-static void efx_wait_for_bist_end(struct efx_nic *efx)
-{
-	int i;
-
-	for (i = 0; i < BIST_WAIT_DELAY_COUNT; ++i) {
-		if (efx_mcdi_poll_reboot(efx))
-			goto out;
-		msleep(BIST_WAIT_DELAY_MS);
-	}
-
-	netif_err(efx, drv, efx->net_dev, "Warning: No MC reboot after BIST mode\n");
-out:
-	/* Either way unset the BIST flag. If we found no reboot we probably
-	 * won't recover, but we should try.
-	 */
-	efx->mc_bist_for_other_fn = false;
-}
-
-/* The worker thread exists so that code that cannot sleep can
- * schedule a reset for later.
- */
-static void efx_reset_work(struct work_struct *data)
-{
-	struct efx_nic *efx = container_of(data, struct efx_nic, reset_work);
-	unsigned long pending;
-	enum reset_type method;
-
-	pending = READ_ONCE(efx->reset_pending);
-	method = fls(pending) - 1;
-
-	if (method == RESET_TYPE_MC_BIST)
-		efx_wait_for_bist_end(efx);
-
-	if ((method == RESET_TYPE_RECOVER_OR_DISABLE ||
-	     method == RESET_TYPE_RECOVER_OR_ALL) &&
-	    efx_try_recovery(efx))
-		return;
-
-	if (!pending)
-		return;
-
-	rtnl_lock();
-
-	/* We checked the state in efx_schedule_reset() but it may
-	 * have changed by now.  Now that we have the RTNL lock,
-	 * it cannot change again.
-	 */
-	if (efx->state == STATE_READY)
-		(void)efx_reset(efx, method);
-
-	rtnl_unlock();
-}
-
-/**************************************************************************
- *
  * List of NICs we support
  *
  **************************************************************************/
@@ -2569,91 +2306,18 @@ static const struct pci_device_id efx_pci_table[] = {
 
 /**************************************************************************
  *
- * Dummy PHY/MAC operations
- *
- * Can be used for some unimplemented operations
- * Needed so all function pointers are valid and do not have to be tested
- * before use
- *
- **************************************************************************/
-int efx_port_dummy_op_int(struct efx_nic *efx)
-{
-	return 0;
-}
-void efx_port_dummy_op_void(struct efx_nic *efx) {}
-
-static bool efx_port_dummy_op_poll(struct efx_nic *efx)
-{
-	return false;
-}
-
-static const struct efx_phy_operations efx_dummy_phy_operations = {
-	.init		 = efx_port_dummy_op_int,
-	.reconfigure	 = efx_port_dummy_op_int,
-	.poll		 = efx_port_dummy_op_poll,
-	.fini		 = efx_port_dummy_op_void,
-};
-
-/**************************************************************************
- *
  * Data housekeeping
  *
  **************************************************************************/
 
-/* This zeroes out and then fills in the invariants in a struct
- * efx_nic (including all sub-structures).
- */
-int efx_init_struct(struct efx_nic *efx, struct pci_dev *pci_dev,
-		    struct net_device *net_dev)
+int efx_init_channels(struct efx_nic *efx)
 {
-	int rc = -ENOMEM, i;
-
-	/* Initialise common structures */
-	INIT_LIST_HEAD(&efx->node);
-	INIT_LIST_HEAD(&efx->secondary_list);
-	spin_lock_init(&efx->biu_lock);
-#ifdef CONFIG_SFC_MTD
-	INIT_LIST_HEAD(&efx->mtd_list);
-#endif
-	INIT_WORK(&efx->reset_work, efx_reset_work);
-	INIT_DELAYED_WORK(&efx->monitor_work, efx_monitor);
-	INIT_DELAYED_WORK(&efx->selftest_work, efx_selftest_async_work);
-	efx->pci_dev = pci_dev;
-	efx->msg_enable = debug;
-	efx->state = STATE_UNINIT;
-	strlcpy(efx->name, pci_name(pci_dev), sizeof(efx->name));
-
-	efx->net_dev = net_dev;
-	efx->rx_prefix_size = efx->type->rx_prefix_size;
-	efx->rx_ip_align =
-		NET_IP_ALIGN ? (efx->rx_prefix_size + NET_IP_ALIGN) % 4 : 0;
-	efx->rx_packet_hash_offset =
-		efx->type->rx_hash_offset - efx->type->rx_prefix_size;
-	efx->rx_packet_ts_offset =
-		efx->type->rx_ts_offset - efx->type->rx_prefix_size;
-	INIT_LIST_HEAD(&efx->rss_context.list);
-	mutex_init(&efx->rss_lock);
-	spin_lock_init(&efx->stats_lock);
-	efx->vi_stride = EFX_DEFAULT_VI_STRIDE;
-	efx->num_mac_stats = MC_CMD_MAC_NSTATS;
-	BUILD_BUG_ON(MC_CMD_MAC_NSTATS - 1 != MC_CMD_MAC_GENERATION_END);
-	mutex_init(&efx->mac_lock);
-#ifdef CONFIG_RFS_ACCEL
-	mutex_init(&efx->rps_mutex);
-	spin_lock_init(&efx->rps_hash_lock);
-	/* Failure to allocate is not fatal, but may degrade ARFS performance */
-	efx->rps_hash_table = kcalloc(EFX_ARFS_HASH_TABLE_SIZE,
-				      sizeof(*efx->rps_hash_table), GFP_KERNEL);
-#endif
-	efx->phy_op = &efx_dummy_phy_operations;
-	efx->mdio.dev = net_dev;
-	INIT_WORK(&efx->mac_work, efx_mac_work);
-	init_waitqueue_head(&efx->flush_wq);
+	unsigned int i;
 
 	for (i = 0; i < EFX_MAX_CHANNELS; i++) {
 		efx->channel[i] = efx_alloc_channel(efx, i, NULL);
 		if (!efx->channel[i])
-			goto fail;
+			return -ENOMEM;
 		efx->msi_context[i].efx = efx;
 		efx->msi_context[i].index = i;
 	}
@@ -2661,45 +2325,14 @@ int efx_init_struct(struct efx_nic *efx, struct pci_dev *pci_dev,
 	/* Higher numbered interrupt modes are less capable! */
 	if (WARN_ON_ONCE(efx->type->max_interrupt_mode >
 			 efx->type->min_interrupt_mode)) {
-		rc = -EIO;
-		goto fail;
+		return -EIO;
 	}
 	efx->interrupt_mode = max(efx->type->max_interrupt_mode,
 				  interrupt_mode);
 	efx->interrupt_mode = min(efx->type->min_interrupt_mode,
 				  interrupt_mode);
 
-	/* Would be good to use the net_dev name, but we're too early */
-	snprintf(efx->workqueue_name, sizeof(efx->workqueue_name), "sfc%s",
-		 pci_name(pci_dev));
-	efx->workqueue = create_singlethread_workqueue(efx->workqueue_name);
-	if (!efx->workqueue)
-		goto fail;
-
 	return 0;
-
-fail:
-	efx_fini_struct(efx);
-	return rc;
-}
-
-void efx_fini_struct(struct efx_nic *efx)
-{
-	int i;
-
-#ifdef CONFIG_RFS_ACCEL
-	kfree(efx->rps_hash_table);
-#endif
-
-	for (i = 0; i < EFX_MAX_CHANNELS; i++)
-		kfree(efx->channel[i]);
-
-	kfree(efx->vpd_sn);
-
-	if (efx->workqueue) {
-		destroy_workqueue(efx->workqueue);
-		efx->workqueue = NULL;
-	}
 }
 
 void efx_update_sw_stats(struct efx_nic *efx, u64 *stats)