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249 lines
8.9 KiB
249 lines
8.9 KiB
From: jbeulich@novell.com
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Subject: conditionalize driverlink additions to Solarflare driver
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Patch-mainline: n/a
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References: FATE#303479
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At once converted the EFX_TRACE() invocations after vetoed RX/TX
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callbacks to ...LOG() ones, which is consistent with Solarflare's
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current code according to David Riddoch (2008-09-12).
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--- head-2009-11-06.orig/drivers/net/sfc/Kconfig 2009-04-21 11:02:22.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/Kconfig 2009-10-12 13:41:03.000000000 +0200
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@@ -12,8 +12,12 @@ config SFC
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To compile this driver as a module, choose M here. The module
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will be called sfc.
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+config SFC_DRIVERLINK
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+ bool
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+
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config SFC_RESOURCE
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depends on SFC && X86
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+ select SFC_DRIVERLINK
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tristate "Solarflare Solarstorm SFC4000 resource driver"
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help
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This module provides the SFC resource manager driver.
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--- head-2009-11-06.orig/drivers/net/sfc/Makefile 2009-02-06 12:42:18.000000000 +0100
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+++ head-2009-11-06/drivers/net/sfc/Makefile 2009-10-12 13:41:03.000000000 +0200
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@@ -1,7 +1,7 @@
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sfc-y += efx.o falcon.o tx.o rx.o falcon_gmac.o \
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falcon_xmac.o selftest.o ethtool.o xfp_phy.o \
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- mdio_10g.o tenxpress.o boards.o sfe4001.o \
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- driverlink.o
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+ mdio_10g.o tenxpress.o boards.o sfe4001.o
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+sfc-$(CONFIG_SFC_DRIVERLINK) += driverlink.o
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sfc-$(CONFIG_SFC_MTD) += mtd.o
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obj-$(CONFIG_SFC) += sfc.o
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--- head-2009-11-06.orig/drivers/net/sfc/driverlink.c 2009-07-28 10:04:25.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/driverlink.c 2009-10-12 13:41:03.000000000 +0200
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@@ -14,7 +14,6 @@
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#include <linux/rtnetlink.h>
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#include "net_driver.h"
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#include "efx.h"
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-#include "driverlink_api.h"
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#include "driverlink.h"
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/* Protects @efx_driverlink_lock and @efx_driver_list */
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--- head-2009-11-06.orig/drivers/net/sfc/driverlink.h 2009-07-28 10:04:25.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/driverlink.h 2009-10-12 13:41:03.000000000 +0200
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@@ -15,6 +15,10 @@
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struct efx_dl_device;
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struct efx_nic;
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+#ifdef CONFIG_SFC_DRIVERLINK
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+
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+#include "driverlink_api.h"
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+
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/* Efx callback devices
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*
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* A list of the devices that own each callback. The partner to
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@@ -40,4 +44,23 @@ extern void efx_dl_unregister_nic(struct
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extern void efx_dl_reset_suspend(struct efx_nic *efx);
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extern void efx_dl_reset_resume(struct efx_nic *efx, int ok);
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+#define EFX_DL_LOG EFX_LOG
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+
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+#else /* CONFIG_SFC_DRIVERLINK */
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+
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+enum efx_veto { EFX_ALLOW_PACKET = 0 };
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+
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+static inline int efx_nop_callback(struct efx_nic *efx) { return 0; }
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+#define EFX_DL_CALLBACK(port, name, ...) efx_nop_callback(port)
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+
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+static inline int efx_dl_register_nic(struct efx_nic *efx) { return 0; }
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+static inline void efx_dl_unregister_nic(struct efx_nic *efx) {}
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+
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+static inline void efx_dl_reset_suspend(struct efx_nic *efx) {}
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+static inline void efx_dl_reset_resume(struct efx_nic *efx, int ok) {}
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+
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+#define EFX_DL_LOG(efx, fmt, args...) ((void)(efx))
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+
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+#endif /* CONFIG_SFC_DRIVERLINK */
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+
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#endif /* EFX_DRIVERLINK_H */
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--- head-2009-11-06.orig/drivers/net/sfc/efx.c 2009-10-12 13:40:25.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/efx.c 2009-10-12 13:41:03.000000000 +0200
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@@ -1689,6 +1689,7 @@ static void efx_unregister_netdev(struct
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* Device reset and suspend
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*
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**************************************************************************/
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+#ifdef CONFIG_SFC_DRIVERLINK
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/* Serialise access to the driverlink callbacks, by quiescing event processing
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* (without flushing the descriptor queues), and acquiring the rtnl_lock */
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void efx_suspend(struct efx_nic *efx)
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@@ -1706,6 +1707,7 @@ void efx_resume(struct efx_nic *efx)
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efx_start_all(efx);
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rtnl_unlock();
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}
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+#endif
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/* Tears down the entire software state and most of the hardware state
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* before reset. */
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@@ -1978,9 +1980,11 @@ static int efx_init_struct(struct efx_ni
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efx->mac_op = &efx_dummy_mac_operations;
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efx->phy_op = &efx_dummy_phy_operations;
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efx->mdio.dev = net_dev;
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+#ifdef CONFIG_SFC_DRIVERLINK
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INIT_LIST_HEAD(&efx->dl_node);
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INIT_LIST_HEAD(&efx->dl_device_list);
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efx->dl_cb = efx_default_callbacks;
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+#endif
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INIT_WORK(&efx->phy_work, efx_phy_work);
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INIT_WORK(&efx->mac_work, efx_mac_work);
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atomic_set(&efx->netif_stop_count, 1);
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--- head-2009-11-06.orig/drivers/net/sfc/falcon.c 2009-07-28 10:04:25.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/falcon.c 2009-10-12 13:41:03.000000000 +0200
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@@ -36,6 +36,7 @@
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/**
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* struct falcon_nic_data - Falcon NIC state
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+ * @next_buffer_table: First available buffer table id
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* @resources: Resource information for driverlink client
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* @pci_dev2: The secondary PCI device if present
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* @i2c_data: Operations and state for I2C bit-bashing algorithm
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@@ -43,7 +44,11 @@
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* @int_error_expire: Time at which error count will be expired
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*/
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struct falcon_nic_data {
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+#ifndef CONFIG_SFC_DRIVERLINK
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+ unsigned next_buffer_table;
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+#else
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struct efx_dl_falcon_resources resources;
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+#endif
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struct pci_dev *pci_dev2;
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struct i2c_algo_bit_data i2c_data;
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@@ -336,8 +341,13 @@ static int falcon_alloc_special_buffer(s
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memset(buffer->addr, 0xff, len);
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/* Select new buffer ID */
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+#ifndef CONFIG_SFC_DRIVERLINK
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+ buffer->index = nic_data->next_buffer_table;
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+ nic_data->next_buffer_table += buffer->entries;
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+#else
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buffer->index = nic_data->resources.buffer_table_min;
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nic_data->resources.buffer_table_min += buffer->entries;
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+#endif
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EFX_LOG(efx, "allocating special buffers %d-%d at %llx+%x "
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"(virt %p phys %llx)\n", buffer->index,
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@@ -2755,6 +2765,7 @@ static int falcon_probe_nvconfig(struct
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* should live. */
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static int falcon_dimension_resources(struct efx_nic *efx)
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{
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+#ifdef CONFIG_SFC_DRIVERLINK
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unsigned internal_dcs_entries;
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struct falcon_nic_data *nic_data = efx->nic_data;
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struct efx_dl_falcon_resources *res = &nic_data->resources;
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@@ -2799,6 +2810,7 @@ static int falcon_dimension_resources(st
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if (EFX_INT_MODE_USE_MSI(efx))
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res->flags |= EFX_DL_FALCON_USE_MSI;
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+#endif
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return 0;
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}
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@@ -2962,7 +2974,9 @@ int falcon_probe_nic(struct efx_nic *efx
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return 0;
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fail6:
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+#ifdef CONFIG_SFC_DRIVERLINK
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efx->dl_info = NULL;
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+#endif
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fail5:
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falcon_remove_spi_devices(efx);
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falcon_free_buffer(efx, &efx->irq_status);
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@@ -3150,7 +3164,9 @@ void falcon_remove_nic(struct efx_nic *e
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/* Tear down the private nic state */
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kfree(efx->nic_data);
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efx->nic_data = NULL;
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+#ifdef CONFIG_SFC_DRIVERLINK
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efx->dl_info = NULL;
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+#endif
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}
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void falcon_update_nic_stats(struct efx_nic *efx)
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--- head-2009-11-06.orig/drivers/net/sfc/net_driver.h 2009-07-28 10:04:25.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/net_driver.h 2009-10-12 13:41:03.000000000 +0200
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@@ -29,7 +29,6 @@
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#include "enum.h"
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#include "bitfield.h"
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-#include "driverlink_api.h"
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#include "driverlink.h"
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/**************************************************************************
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@@ -854,11 +853,13 @@ struct efx_nic {
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void *loopback_selftest;
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const char *silicon_rev;
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+#ifdef CONFIG_SFC_DRIVERLINK
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struct efx_dl_device_info *dl_info;
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struct list_head dl_node;
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struct list_head dl_device_list;
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struct efx_dl_callbacks dl_cb;
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struct efx_dl_cb_devices dl_cb_dev;
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+#endif
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};
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static inline int efx_dev_registered(struct efx_nic *efx)
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--- head-2009-11-06.orig/drivers/net/sfc/rx.c 2009-11-06 10:32:03.000000000 +0100
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+++ head-2009-11-06/drivers/net/sfc/rx.c 2009-11-06 10:32:24.000000000 +0100
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@@ -456,8 +456,8 @@ static void efx_rx_packet_lro(struct efx
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* an obvious interface to this, so veto packets before LRO */
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veto = EFX_DL_CALLBACK(efx, rx_packet, rx_buf->data, rx_buf->len);
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if (unlikely(veto)) {
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- EFX_TRACE(efx, "LRO RX vetoed by driverlink %s driver\n",
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- efx->dl_cb_dev.rx_packet->driver->name);
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+ EFX_DL_LOG(efx, "LRO RX vetoed by driverlink %s driver\n",
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+ efx->dl_cb_dev.rx_packet->driver->name);
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/* Free the buffer now */
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efx_free_rx_buffer(efx, rx_buf);
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return;
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@@ -579,8 +579,8 @@ void __efx_rx_packet(struct efx_channel
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/* Allow callback to veto the packet */
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veto = EFX_DL_CALLBACK(efx, rx_packet, rx_buf->data, rx_buf->len);
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if (unlikely(veto)) {
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- EFX_LOG(efx, "RX vetoed by driverlink %s driver\n",
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- efx->dl_cb_dev.rx_packet->driver->name);
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+ EFX_DL_LOG(efx, "RX vetoed by driverlink %s driver\n",
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+ efx->dl_cb_dev.rx_packet->driver->name);
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/* Free the buffer now */
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efx_free_rx_buffer(efx, rx_buf);
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goto done;
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--- head-2009-11-06.orig/drivers/net/sfc/tx.c 2009-10-12 13:40:32.000000000 +0200
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+++ head-2009-11-06/drivers/net/sfc/tx.c 2009-10-12 13:41:03.000000000 +0200
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@@ -387,9 +387,9 @@ netdev_tx_t efx_hard_start_xmit(struct s
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/* See if driverlink wants to veto the packet. */
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veto = EFX_DL_CALLBACK(efx, tx_packet, skb);
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if (unlikely(veto)) {
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- EFX_TRACE(efx, "TX queue %d packet vetoed by "
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- "driverlink %s driver\n", tx_queue->queue,
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- efx->dl_cb_dev.tx_packet->driver->name);
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+ EFX_DL_LOG(efx, "TX queue %d packet vetoed by "
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+ "driverlink %s driver\n", tx_queue->queue,
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+ efx->dl_cb_dev.tx_packet->driver->name);
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/* Free the skb; nothing else will do it */
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dev_kfree_skb_any(skb);
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return NETDEV_TX_OK;
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