[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [linux-2.6.18-xen] Update sfc_netback driver to match sfc_resource 3.0.2.2074
# HG changeset patch # User Keir Fraser <keir.fraser@xxxxxxxxxx> # Date 1262956037 0 # Node ID 6061d56155223f92362420ec9a5a4dbe933efa60 # Parent b8c2a9aacba6d9c50847d419bc6cfedc8fc4c750 Update sfc_netback driver to match sfc_resource 3.0.2.2074 Add support for direct guest access and acceleration of SFC9000 series NICs. Improve handling of NIC reset in sfc_netback Remove nic_index state and replace with if_index from struct net_device Remove duplication of header files with sfc_resource driver Signed-off-by: Kieran Mansley <kmansley@xxxxxxxxxxxxxx> --- drivers/xen/sfc_netback/ci/driver/resource/efx_vi.h | 273 ---------------- drivers/xen/sfc_netback/ci/efhw/common.h | 98 ----- drivers/xen/sfc_netback/ci/efhw/common_sysdep.h | 71 ---- drivers/xen/sfc_netback/ci/efhw/debug.h | 84 ---- drivers/xen/sfc_netback/ci/efhw/efhw_config.h | 43 -- drivers/xen/sfc_netback/ci/efhw/efhw_types.h | 337 -------------------- drivers/xen/sfc_netback/ci/efhw/hardware_sysdep.h | 86 ----- drivers/xen/sfc_netback/ci/efhw/iopage_types.h | 195 ----------- drivers/xen/sfc_netback/ci/efhw/public.h | 83 ---- drivers/xen/sfc_netback/ci/efhw/sysdep.h | 72 ---- drivers/xen/sfc_netback/ci/efrm/nic_table.h | 98 ----- drivers/xen/sfc_netback/ci/efrm/sysdep.h | 54 --- drivers/xen/sfc_netback/ci/efrm/sysdep_linux.h | 267 --------------- drivers/xen/sfc_netback/Makefile | 2 drivers/xen/sfc_netback/accel.h | 2 drivers/xen/sfc_netback/accel_solarflare.c | 92 +++-- drivers/xen/sfc_netfront/accel_vi.c | 6 drivers/xen/sfc_netutil/accel_msg_iface.h | 1 18 files changed, 64 insertions(+), 1800 deletions(-) diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/Makefile --- a/drivers/xen/sfc_netback/Makefile Fri Jan 08 13:06:22 2010 +0000 +++ b/drivers/xen/sfc_netback/Makefile Fri Jan 08 13:07:17 2010 +0000 @@ -1,4 +1,4 @@ EXTRA_CFLAGS += -Idrivers/xen/sfc_netbac -EXTRA_CFLAGS += -Idrivers/xen/sfc_netback -Idrivers/xen/sfc_netutil -Idrivers/xen/netback -Idrivers/net/sfc +EXTRA_CFLAGS += -Idrivers/xen/sfc_netback -Idrivers/xen/sfc_netutil -Idrivers/xen/netback -Idrivers/net/sfc -Idrivers/net/sfc/sfc_resource EXTRA_CFLAGS += -D__ci_driver__ EXTRA_CFLAGS += -DEFX_USE_KCOMPAT EXTRA_CFLAGS += -Werror diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/accel.h --- a/drivers/xen/sfc_netback/accel.h Fri Jan 08 13:06:22 2010 +0000 +++ b/drivers/xen/sfc_netback/accel.h Fri Jan 08 13:07:17 2010 +0000 @@ -123,8 +123,6 @@ struct netback_accel { enum net_accel_hw_type hw_type; /*! State of allocation */ int hw_state; - /*! Index into ci_driver.nics[] for this interface */ - int nic_index; /*! How to set up the acceleration for this hardware */ int (*accel_setup)(struct netback_accel *); /*! And how to stop it. */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/accel_solarflare.c --- a/drivers/xen/sfc_netback/accel_solarflare.c Fri Jan 08 13:06:22 2010 +0000 +++ b/drivers/xen/sfc_netback/accel_solarflare.c Fri Jan 08 13:07:17 2010 +0000 @@ -87,7 +87,6 @@ struct driverlink_port { enum net_accel_hw_type type; struct net_device *net_dev; struct efx_dl_device *efx_dl_dev; - int nic_index; void *fwd_priv; }; @@ -164,25 +163,6 @@ static struct netback_accel_hooks accel_ }; -/* - * Handy helper which given an efx_dl_device works out which - * efab_nic_t index into efrm_nic_table.nics[] it corresponds to - */ -static int efx_device_to_efab_nic_index(struct efx_dl_device *efx_dl_dev) -{ - int i, rc = -1; - struct efhw_nic *nic; - - EFRM_FOR_EACH_NIC(i, nic) { - if (nic != NULL && nic->net_driver_dev != NULL && - nic->net_driver_dev->pci_dev == efx_dl_dev->pci_dev) - rc = i; - } - - return rc; -} - - /* Driver link probe - register our callbacks */ static int bend_dl_probe(struct efx_dl_device *efx_dl_dev, const struct net_device *net_dev, @@ -199,6 +179,8 @@ static int bend_dl_probe(struct efx_dl_d type = NET_ACCEL_MSG_HWTYPE_FALCON_A; else if (strcmp(silicon_rev, "falcon/b0") == 0) type = NET_ACCEL_MSG_HWTYPE_FALCON_B; + else if (strcmp(silicon_rev, "siena/a0") == 0) + type = NET_ACCEL_MSG_HWTYPE_SIENA_A; else { EPRINTK("%s: unsupported silicon %s\n", __FUNCTION__, silicon_rev); @@ -215,17 +197,6 @@ static int bend_dl_probe(struct efx_dl_d port->efx_dl_dev = efx_dl_dev; efx_dl_dev->priv = port; - - port->nic_index = efx_device_to_efab_nic_index(efx_dl_dev); - if (port->nic_index < 0) { - /* - * This can happen in theory if the resource driver - * failed to initialise properly - */ - EPRINTK("%s: nic structure not found\n", __FUNCTION__); - rc = -EINVAL; - goto fail2; - } port->fwd_priv = netback_accel_init_fwd_port(); if (port->fwd_priv == NULL) { @@ -311,11 +282,65 @@ static void bend_dl_remove(struct efx_dl } +static void bend_dl_reset_suspend(struct efx_dl_device *efx_dl_dev) +{ + struct driverlink_port *port; + + DPRINTK("Driverlink reset suspend.\n"); + + mutex_lock(&accel_mutex); + + port = (struct driverlink_port *)efx_dl_dev->priv; + BUG_ON(list_empty(&dl_ports)); + BUG_ON(port == NULL); + BUG_ON(port->efx_dl_dev != efx_dl_dev); + + netback_disconnect_accelerator(0, port->net_dev->name); + mutex_unlock(&accel_mutex); +} + + +static void bend_dl_reset_resume(struct efx_dl_device *efx_dl_dev, int ok) +{ + int rc; + struct driverlink_port *port; + + DPRINTK("Driverlink reset resume.\n"); + + if (!ok) + return; + + port = (struct driverlink_port *)efx_dl_dev->priv; + BUG_ON(list_empty(&dl_ports)); + BUG_ON(port == NULL); + BUG_ON(port->efx_dl_dev != efx_dl_dev); + + rc = netback_connect_accelerator(NETBACK_ACCEL_VERSION, 0, + port->net_dev->name, &accel_hooks); + if (rc != 0) { + EPRINTK("Xen netback accelerator version mismatch\n"); + + mutex_lock(&accel_mutex); + list_del(&port->link); + mutex_unlock(&accel_mutex); + + efx_dl_unregister_callbacks(efx_dl_dev, &bend_dl_callbacks); + + netback_accel_shutdown_fwd_port(port->fwd_priv); + + efx_dl_dev->priv = NULL; + kfree(port); + } +} + + static struct efx_dl_driver bend_dl_driver = { .name = "SFC Xen backend", .probe = bend_dl_probe, .remove = bend_dl_remove, + .reset_suspend = bend_dl_reset_suspend, + .reset_resume = bend_dl_reset_resume }; @@ -368,8 +393,6 @@ int netback_accel_sf_hwtype(struct netba bend->accel_setup = netback_accel_setup_vnic_hw; bend->accel_shutdown = netback_accel_shutdown_vnic_hw; bend->fwd_priv = port->fwd_priv; - /* This is just needed to pass to efx_vi_alloc */ - bend->nic_index = port->nic_index; bend->net_dev = port->net_dev; mutex_unlock(&accel_mutex); return 0; @@ -496,7 +519,7 @@ static int ef_get_vnic(struct netback_ac accel_hw_priv = bend->accel_hw_priv; - rc = efx_vi_alloc(&accel_hw_priv->efx_vih, bend->nic_index); + rc = efx_vi_alloc(&accel_hw_priv->efx_vih, bend->net_dev->ifindex); if (rc != 0) { EPRINTK("%s: efx_vi_alloc failed %d\n", __FUNCTION__, rc); free_page_state(bend); @@ -745,6 +768,7 @@ static int netback_accel_hwinfo(struct n rc = ef_bend_hwinfo_falcon_a(bend, &msgvi->resources.falcon_a); break; case NET_ACCEL_MSG_HWTYPE_FALCON_B: + case NET_ACCEL_MSG_HWTYPE_SIENA_A: rc = ef_bend_hwinfo_falcon_b(bend, &msgvi->resources.falcon_b); break; case NET_ACCEL_MSG_HWTYPE_NONE: diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/driver/resource/efx_vi.h --- a/drivers/xen/sfc_netback/ci/driver/resource/efx_vi.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,273 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file contains public EFX VI API to Solarflare resource manager. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_DRIVER_RESOURCE_EFX_VI_H__ -#define __CI_DRIVER_RESOURCE_EFX_VI_H__ - -/* Default size of event queue in the efx_vi resource. Copied from - * CI_CFG_NETIF_EVENTQ_SIZE */ -#define EFX_VI_EVENTQ_SIZE_DEFAULT 1024 - -extern int efx_vi_eventq_size; - -/************************************************************************** - * efx_vi_state types, allocation and free - **************************************************************************/ - -/*! Handle for refering to a efx_vi */ -struct efx_vi_state; - -/*! - * Allocate an efx_vi, including event queue and pt_endpoint - * - * \param vih_out Pointer to a handle that is set on success - * \param nic_index Index of NIC to apply this resource to - * \return Zero on success (and vih_out set), non-zero on failure. - */ -extern int -efx_vi_alloc(struct efx_vi_state **vih_out, int nic_index); - -/*! - * Free a previously allocated efx_vi - * - * \param vih The handle of the efx_vi to free - */ -extern void -efx_vi_free(struct efx_vi_state *vih); - -/*! - * Reset a previously allocated efx_vi - * - * \param vih The handle of the efx_vi to reset - */ -extern void -efx_vi_reset(struct efx_vi_state *vih); - -/************************************************************************** - * efx_vi_eventq types and functions - **************************************************************************/ - -/*! - * Register a function to receive callbacks when event queue timeouts - * or wakeups occur. Only one function per efx_vi can be registered - * at once. - * - * \param vih The handle to identify the efx_vi - * \param callback The function to callback - * \param context An argument to pass to the callback function - * \return Zero on success, non-zero on failure. - */ -extern int -efx_vi_eventq_register_callback(struct efx_vi_state *vih, - void (*callback)(void *context, int is_timeout), - void *context); - -/*! - * Remove the current eventq timeout or wakeup callback function - * - * \param vih The handle to identify the efx_vi - * \return Zero on success, non-zero on failure - */ -extern int -efx_vi_eventq_kill_callback(struct efx_vi_state *vih); - -/************************************************************************** - * efx_vi_dma_map types and functions - **************************************************************************/ - -/*! - * Handle for refering to a efx_vi - */ -struct efx_vi_dma_map_state; - -/*! - * Map a list of buffer pages so they are registered with the hardware - * - * \param vih The handle to identify the efx_vi - * \param addrs An array of page pointers to map - * \param n_addrs Length of the page pointer array. Must be a power of two. - * \param dmh_out Set on success to a handle used to refer to this mapping - * \return Zero on success, non-zero on failure. - */ -extern int -efx_vi_dma_map_pages(struct efx_vi_state *vih, struct page **pages, - int n_pages, struct efx_vi_dma_map_state **dmh_out); -extern int -efx_vi_dma_map_addrs(struct efx_vi_state *vih, - unsigned long long *dev_bus_addrs, int n_pages, - struct efx_vi_dma_map_state **dmh_out); - -/*! - * Unmap a previously mapped set of pages so they are no longer registered - * with the hardware. - * - * \param vih The handle to identify the efx_vi - * \param dmh The handle to identify the dma mapping - */ -extern void -efx_vi_dma_unmap_pages(struct efx_vi_state *vih, - struct efx_vi_dma_map_state *dmh); -extern void -efx_vi_dma_unmap_addrs(struct efx_vi_state *vih, - struct efx_vi_dma_map_state *dmh); - -/*! - * Retrieve the buffer address of the mapping - * - * \param vih The handle to identify the efx_vi - * \param dmh The handle to identify the buffer mapping - * \return The buffer address on success, or zero on failure - */ -extern unsigned -efx_vi_dma_get_map_addr(struct efx_vi_state *vih, - struct efx_vi_dma_map_state *dmh); - -/************************************************************************** - * efx_vi filter functions - **************************************************************************/ - -#define EFX_VI_STATIC_FILTERS 32 - -/*! Handle to refer to a filter instance */ -struct filter_resource_t; - -/*! - * Allocate and add a filter - * - * \param vih The handle to identify the efx_vi - * \param protocol The protocol of the new filter: UDP or TCP - * \param ip_addr_be32 The local ip address of the filter - * \param port_le16 The local port of the filter - * \param fh_out Set on success to be a handle to refer to this filter - * \return Zero on success, non-zero on failure. - */ -extern int -efx_vi_filter(struct efx_vi_state *vih, int protocol, unsigned ip_addr_be32, - int port_le16, struct filter_resource_t **fh_out); - -/*! - * Remove a filter and free resources associated with it - * - * \param vih The handle to identify the efx_vi - * \param fh The handle to identify the filter - * \return Zero on success, non-zero on failure - */ -extern int -efx_vi_filter_stop(struct efx_vi_state *vih, struct filter_resource_t *fh); - -/************************************************************************** - * efx_vi hw resources types and functions - **************************************************************************/ - -/*! Constants for the type field in efx_vi_hw_resource */ -#define EFX_VI_HW_RESOURCE_TXDMAQ 0x0 /* PFN of TX DMA Q */ -#define EFX_VI_HW_RESOURCE_RXDMAQ 0x1 /* PFN of RX DMA Q */ -#define EFX_VI_HW_RESOURCE_EVQTIMER 0x4 /* Address of event q timer */ - -/* Address of event q pointer (EF1) */ -#define EFX_VI_HW_RESOURCE_EVQPTR 0x5 -/* Address of register pointer (Falcon A) */ -#define EFX_VI_HW_RESOURCE_EVQRPTR 0x6 -/* Offset of register pointer (Falcon B) */ -#define EFX_VI_HW_RESOURCE_EVQRPTR_OFFSET 0x7 -/* Address of mem KVA */ -#define EFX_VI_HW_RESOURCE_EVQMEMKVA 0x8 -/* PFN of doorbell page (Falcon) */ -#define EFX_VI_HW_RESOURCE_BELLPAGE 0x9 - -/*! How large an array to allocate for the get_() functions - smaller - than the total number of constants as some are mutually exclusive */ -#define EFX_VI_HW_RESOURCE_MAXSIZE 0x7 - -/*! Constants for the mem_type field in efx_vi_hw_resource */ -#define EFX_VI_HW_RESOURCE_IOBUFFER 0 /* Host memory */ -#define EFX_VI_HW_RESOURCE_PERIPHERAL 1 /* Card memory/registers */ - -/*! - * Data structure providing information on a hardware resource mapping - */ -struct efx_vi_hw_resource { - u8 type; /*!< What this resource represents */ - u8 mem_type; /*!< What type of memory is it in, eg, - * host or iomem */ - u8 more_to_follow; /*!< Is this part of a multi-region resource */ - u32 length; /*!< Length of the resource in bytes */ - unsigned long address; /*!< Address of this resource */ -}; - -/*! - * Metadata concerning the list of hardware resource mappings - */ -struct efx_vi_hw_resource_metadata { - int evq_order; - int evq_offs; - int evq_capacity; - int instance; - unsigned rx_capacity; - unsigned tx_capacity; - int nic_arch; - int nic_revision; - char nic_variant; -}; - -/*! - * Obtain a list of hardware resource mappings, using virtual addresses - * - * \param vih The handle to identify the efx_vi - * \param mdata Pointer to a structure to receive the metadata - * \param hw_res_array An array to receive the list of hardware resources - * \param length The length of hw_res_array. Updated on success to contain - * the number of entries in the supplied array that were used. - * \return Zero on success, non-zero on failure - */ -extern int -efx_vi_hw_resource_get_virt(struct efx_vi_state *vih, - struct efx_vi_hw_resource_metadata *mdata, - struct efx_vi_hw_resource *hw_res_array, - int *length); - -/*! - * Obtain a list of hardware resource mappings, using physical addresses - * - * \param vih The handle to identify the efx_vi - * \param mdata Pointer to a structure to receive the metadata - * \param hw_res_array An array to receive the list of hardware resources - * \param length The length of hw_res_array. Updated on success to contain - * the number of entries in the supplied array that were used. - * \return Zero on success, non-zero on failure - */ -extern int -efx_vi_hw_resource_get_phys(struct efx_vi_state *vih, - struct efx_vi_hw_resource_metadata *mdata, - struct efx_vi_hw_resource *hw_res_array, - int *length); - -#endif /* __CI_DRIVER_RESOURCE_EFX_VI_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/common.h --- a/drivers/xen/sfc_netback/ci/efhw/common.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,98 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides API of the efhw library which may be used both from - * the kernel and from the user-space code. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_COMMON_H__ -#define __CI_EFHW_COMMON_H__ - -#include <ci/efhw/common_sysdep.h> - -enum efhw_arch { - EFHW_ARCH_FALCON, - EFHW_ARCH_SIENA, -}; - -typedef uint32_t efhw_buffer_addr_t; -#define EFHW_BUFFER_ADDR_FMT "[ba:%"PRIx32"]" - -/*! Comment? */ -typedef union { - uint64_t u64; - struct { - uint32_t a; - uint32_t b; - } opaque; -} efhw_event_t; - -/* Flags for TX/RX queues */ -#define EFHW_VI_JUMBO_EN 0x01 /*! scatter RX over multiple desc */ -#define EFHW_VI_ISCSI_RX_HDIG_EN 0x02 /*! iscsi rx header digest */ -#define EFHW_VI_ISCSI_TX_HDIG_EN 0x04 /*! iscsi tx header digest */ -#define EFHW_VI_ISCSI_RX_DDIG_EN 0x08 /*! iscsi rx data digest */ -#define EFHW_VI_ISCSI_TX_DDIG_EN 0x10 /*! iscsi tx data digest */ -#define EFHW_VI_TX_PHYS_ADDR_EN 0x20 /*! TX physical address mode */ -#define EFHW_VI_RX_PHYS_ADDR_EN 0x40 /*! RX physical address mode */ -#define EFHW_VI_RM_WITH_INTERRUPT 0x80 /*! VI with an interrupt */ -#define EFHW_VI_TX_IP_CSUM_DIS 0x100 /*! enable ip checksum generation */ -#define EFHW_VI_TX_TCPUDP_CSUM_DIS 0x200 /*! enable tcp/udp checksum - generation */ -#define EFHW_VI_TX_TCPUDP_ONLY 0x400 /*! drop non-tcp/udp packets */ - -/* Types of hardware filter */ -/* Each of these values implicitly selects scatter filters on B0 - or in - EFHW_IP_FILTER_TYPE_NOSCAT_B0_MASK if a non-scatter filter is required */ -#define EFHW_IP_FILTER_TYPE_UDP_WILDCARD (0) /* dest host only */ -#define EFHW_IP_FILTER_TYPE_UDP_FULL (1) /* dest host and port */ -#define EFHW_IP_FILTER_TYPE_TCP_WILDCARD (2) /* dest based filter */ -#define EFHW_IP_FILTER_TYPE_TCP_FULL (3) /* src filter */ -/* Same again, but with RSS (for B0 only) */ -#define EFHW_IP_FILTER_TYPE_UDP_WILDCARD_RSS_B0 (4) -#define EFHW_IP_FILTER_TYPE_UDP_FULL_RSS_B0 (5) -#define EFHW_IP_FILTER_TYPE_TCP_WILDCARD_RSS_B0 (6) -#define EFHW_IP_FILTER_TYPE_TCP_FULL_RSS_B0 (7) - -#define EFHW_IP_FILTER_TYPE_FULL_MASK (0x1) /* Mask for full / wildcard */ -#define EFHW_IP_FILTER_TYPE_TCP_MASK (0x2) /* Mask for TCP type */ -#define EFHW_IP_FILTER_TYPE_RSS_B0_MASK (0x4) /* Mask for B0 RSS enable */ -#define EFHW_IP_FILTER_TYPE_NOSCAT_B0_MASK (0x8) /* Mask for B0 SCATTER dsbl */ - -#define EFHW_IP_FILTER_TYPE_MASK (0xffff) /* Mask of types above */ - -#define EFHW_IP_FILTER_BROADCAST (0x10000) /* driverlink filter - support */ - -#endif /* __CI_EFHW_COMMON_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/common_sysdep.h --- a/drivers/xen/sfc_netback/ci/efhw/common_sysdep.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,71 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides version-independent Linux kernel API for - * userland-to-kernel interfaces. - * Only kernels >=2.6.9 are supported. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_COMMON_LINUX_H__ -#define __CI_EFHW_COMMON_LINUX_H__ - -#include <linux/types.h> -#include <linux/version.h> - -/* Dirty hack, but Linux kernel does not provide DMA_ADDR_T_FMT */ -#if BITS_PER_LONG == 64 || defined(CONFIG_HIGHMEM64G) -#define DMA_ADDR_T_FMT "%llx" -#else -#define DMA_ADDR_T_FMT "%x" -#endif - -/* Linux kernel also does not provide PRIx32... Sigh. */ -#define PRIx32 "x" - -#ifdef __ia64__ -# define PRIx64 "lx" -#else -# define PRIx64 "llx" -#endif - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) -enum { - false = 0, - true = 1 -}; - -typedef _Bool bool; -#endif /* LINUX_VERSION_CODE < 2.6.19 */ - -#endif /* __CI_EFHW_COMMON_LINUX_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/debug.h --- a/drivers/xen/sfc_netback/ci/efhw/debug.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,84 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides debug-related API for efhw library using Linux kernel - * primitives. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_DEBUG_LINUX_H__ -#define __CI_EFHW_DEBUG_LINUX_H__ - -#define EFHW_PRINTK_PREFIX "[sfc efhw] " - -#define EFHW_PRINTK(level, fmt, ...) \ - printk(level EFHW_PRINTK_PREFIX fmt "\n", __VA_ARGS__) - -/* Following macros should be used with non-zero format parameters - * due to __VA_ARGS__ limitations. Use "%s" with __FUNCTION__ if you can't - * find better parameters. */ -#define EFHW_ERR(fmt, ...) EFHW_PRINTK(KERN_ERR, fmt, __VA_ARGS__) -#define EFHW_WARN(fmt, ...) EFHW_PRINTK(KERN_WARNING, fmt, __VA_ARGS__) -#define EFHW_NOTICE(fmt, ...) EFHW_PRINTK(KERN_NOTICE, fmt, __VA_ARGS__) -#if 0 && !defined(NDEBUG) -#define EFHW_TRACE(fmt, ...) EFHW_PRINTK(KERN_DEBUG, fmt, __VA_ARGS__) -#else -#define EFHW_TRACE(fmt, ...) -#endif - -#ifndef NDEBUG -#define EFHW_ASSERT(cond) BUG_ON((cond) == 0) -#define EFHW_DO_DEBUG(expr) expr -#else -#define EFHW_ASSERT(cond) -#define EFHW_DO_DEBUG(expr) -#endif - -#define EFHW_TEST(expr) \ - do { \ - if (unlikely(!(expr))) \ - BUG(); \ - } while (0) - -/* Build time asserts. We paste the line number into the type name - * so that the macro can be used more than once per file even if the - * compiler objects to multiple identical typedefs. Collisions - * between use in different header files is still possible. */ -#ifndef EFHW_BUILD_ASSERT -#define __EFHW_BUILD_ASSERT_NAME(_x) __EFHW_BUILD_ASSERT_ILOATHECPP(_x) -#define __EFHW_BUILD_ASSERT_ILOATHECPP(_x) __EFHW_BUILD_ASSERT__ ##_x -#define EFHW_BUILD_ASSERT(e) \ - typedef char __EFHW_BUILD_ASSERT_NAME(__LINE__)[(e) ? 1 : -1] -#endif - -#endif /* __CI_EFHW_DEBUG_LINUX_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/efhw_config.h --- a/drivers/xen/sfc_netback/ci/efhw/efhw_config.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,43 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides some limits used in both kernel and userland code. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_EFAB_CONFIG_H__ -#define __CI_EFHW_EFAB_CONFIG_H__ - -#define EFHW_MAX_NR_DEVS 5 /* max number of efhw devices supported */ - -#endif /* __CI_EFHW_EFAB_CONFIG_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/efhw_types.h --- a/drivers/xen/sfc_netback/ci/efhw/efhw_types.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,337 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides struct efhw_nic and some related types. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_EFAB_TYPES_H__ -#define __CI_EFHW_EFAB_TYPES_H__ - -#include <ci/efhw/efhw_config.h> -#include <ci/efhw/hardware_sysdep.h> -#include <ci/efhw/iopage_types.h> -#include <ci/efhw/sysdep.h> - -/*-------------------------------------------------------------------- - * - * forward type declarations - * - *--------------------------------------------------------------------*/ - -struct efhw_nic; - -/*-------------------------------------------------------------------- - * - * Managed interface - * - *--------------------------------------------------------------------*/ - -struct efhw_buffer_table_allocation{ - unsigned base; - unsigned order; -}; - -struct eventq_resource_hardware { - /*!iobuffer allocated for eventq - can be larger than eventq */ - struct efhw_iopages iobuff; - unsigned iobuff_off; - struct efhw_buffer_table_allocation buf_tbl_alloc; - int capacity; /*!< capacity of event queue */ -}; - -/*-------------------------------------------------------------------- - * - * event queues and event driven callbacks - * - *--------------------------------------------------------------------*/ - -struct efhw_keventq { - int lock; - caddr_t evq_base; - int32_t evq_ptr; - uint32_t evq_mask; - unsigned instance; - struct eventq_resource_hardware hw; - struct efhw_ev_handler *ev_handlers; -}; - -/********************************************************************** - * Portable HW interface. *************************************** - **********************************************************************/ - -/*-------------------------------------------------------------------- - * - * EtherFabric Functional units - configuration and control - * - *--------------------------------------------------------------------*/ - -struct efhw_func_ops { - - /*-------------- Initialisation ------------ */ - - /*! close down all hardware functional units - leaves NIC in a safe - state for driver unload */ - void (*close_hardware) (struct efhw_nic *nic); - - /*! initialise all hardware functional units */ - int (*init_hardware) (struct efhw_nic *nic, - struct efhw_ev_handler *, - const uint8_t *mac_addr, int non_irq_evq); - - /*-------------- Interrupt support ------------ */ - - /*! Main interrupt routine - ** This function returns, - ** - zero, if the IRQ was not generated by EF1 - ** - non-zero, if EF1 was the source of the IRQ - ** - ** - ** opaque is an OS provided pointer for use by the OS callbacks - ** e.g in Windows used to indicate DPC scheduled - */ - int (*interrupt) (struct efhw_nic *nic); - - /*! Enable the interrupt */ - void (*interrupt_enable) (struct efhw_nic *nic); - - /*! Disable the interrupt */ - void (*interrupt_disable) (struct efhw_nic *nic); - - /*! Set interrupt moderation strategy for the given IRQ unit - ** val is in usec - */ - void (*set_interrupt_moderation)(struct efhw_nic *nic, - uint val); - - /*-------------- Event support ------------ */ - - /*! Enable the given event queue - depending on the underlying implementation (EF1 or Falcon) then - either a q_base_addr in host memory, or a buffer base id should - be proivded - */ - void (*event_queue_enable) (struct efhw_nic *nic, - uint evq, /* evnt queue index */ - uint evq_size, /* units of #entries */ - dma_addr_t q_base_addr, uint buf_base_id); - - /*! Disable the given event queue (and any associated timer) */ - void (*event_queue_disable) (struct efhw_nic *nic, uint evq, - int timer_only); - - /*! request wakeup from the NIC on a given event Q */ - void (*wakeup_request) (struct efhw_nic *nic, dma_addr_t q_base_addr, - int next_i, int evq); - - /*! Push a SW event on a given eventQ */ - void (*sw_event) (struct efhw_nic *nic, int data, int evq); - - /*-------------- Filter support ------------ */ - - /*! Setup a given filter - The software can request a filter_i, - * but some EtherFabric implementations will override with - * a more suitable index - */ - int (*ipfilter_set) (struct efhw_nic *nic, int type, - int *filter_i, int dmaq, - unsigned saddr_be32, unsigned sport_be16, - unsigned daddr_be32, unsigned dport_be16); - - /*! Attach a given filter to a DMAQ */ - void (*ipfilter_attach) (struct efhw_nic *nic, int filter_idx, - int dmaq_idx); - - /*! Detach a filter from its DMAQ */ - void (*ipfilter_detach) (struct efhw_nic *nic, int filter_idx); - - /*! Clear down a given filter */ - void (*ipfilter_clear) (struct efhw_nic *nic, int filter_idx); - - /*-------------- DMA support ------------ */ - - /*! Initialise NIC state for a given TX DMAQ */ - void (*dmaq_tx_q_init) (struct efhw_nic *nic, - uint dmaq, uint evq, uint owner, uint tag, - uint dmaq_size, uint buf_idx, uint flags); - - /*! Initialise NIC state for a given RX DMAQ */ - void (*dmaq_rx_q_init) (struct efhw_nic *nic, - uint dmaq, uint evq, uint owner, uint tag, - uint dmaq_size, uint buf_idx, uint flags); - - /*! Disable a given TX DMAQ */ - void (*dmaq_tx_q_disable) (struct efhw_nic *nic, uint dmaq); - - /*! Disable a given RX DMAQ */ - void (*dmaq_rx_q_disable) (struct efhw_nic *nic, uint dmaq); - - /*! Flush a given TX DMA channel */ - int (*flush_tx_dma_channel) (struct efhw_nic *nic, uint dmaq); - - /*! Flush a given RX DMA channel */ - int (*flush_rx_dma_channel) (struct efhw_nic *nic, uint dmaq); - - /*-------------- Buffer table Support ------------ */ - - /*! Initialise a buffer table page */ - void (*buffer_table_set) (struct efhw_nic *nic, - dma_addr_t dma_addr, - uint bufsz, uint region, - int own_id, int buffer_id); - - /*! Initialise a block of buffer table pages */ - void (*buffer_table_set_n) (struct efhw_nic *nic, int buffer_id, - dma_addr_t dma_addr, - uint bufsz, uint region, - int n_pages, int own_id); - - /*! Clear a block of buffer table pages */ - void (*buffer_table_clear) (struct efhw_nic *nic, int buffer_id, - int num); - - /*! Commit a buffer table update */ - void (*buffer_table_commit) (struct efhw_nic *nic); - -}; - - -/*---------------------------------------------------------------------------- - * - * NIC type - * - *---------------------------------------------------------------------------*/ - -struct efhw_device_type { - int arch; /* enum efhw_arch */ - char variant; /* 'A', 'B', ... */ - int revision; /* 0, 1, ... */ -}; - - -/*---------------------------------------------------------------------------- - * - * EtherFabric NIC instance - nic.c for HW independent functions - * - *---------------------------------------------------------------------------*/ - -/*! */ -struct efhw_nic { - /*! zero base index in efrm_nic_tablep->nic array */ - int index; - int ifindex; /*!< OS level nic index */ -#ifdef HAS_NET_NAMESPACE - struct net *nd_net; -#endif - - struct efhw_device_type devtype; - - /*! Options that can be set by user. */ - unsigned options; -# define NIC_OPT_EFTEST 0x1 /* owner is an eftest app */ - -# define NIC_OPT_DEFAULT 0 - - /*! Internal flags that indicate hardware properties at runtime. */ - unsigned flags; -# define NIC_FLAG_NO_INTERRUPT 0x01 /* to be set at init time only */ -# define NIC_FLAG_TRY_MSI 0x02 -# define NIC_FLAG_MSI 0x04 -# define NIC_FLAG_OS_IRQ_EN 0x08 -# define NIC_FLAG_10G 0x10 - - unsigned mtu; /*!< MAC MTU (includes MAC hdr) */ - - /* hardware resources */ - - /*! I/O address of the start of the bar */ - volatile char __iomem *bar_ioaddr; - - /*! Bar number of control aperture. */ - unsigned ctr_ap_bar; - /*! Length of control aperture in bytes. */ - unsigned ctr_ap_bytes; - - uint8_t mac_addr[ETH_ALEN]; /*!< mac address */ - - /*! EtherFabric Functional Units -- functions */ - const struct efhw_func_ops *efhw_func; - - /* Value read from FPGA version register. Zero for asic. */ - unsigned fpga_version; - - /*! This lock protects a number of misc NIC resources. It should - * only be used for things that can be at the bottom of the lock - * order. ie. You mustn't attempt to grab any other lock while - * holding this one. - */ - spinlock_t *reg_lock; - spinlock_t the_reg_lock; - - int buf_commit_outstanding; /*!< outstanding buffer commits */ - - /*! interrupt callbacks (hard-irq) */ - void (*irq_handler) (struct efhw_nic *, int unit); - - /*! event queues per driver */ - struct efhw_keventq interrupting_evq; - -/* for marking when we are not using an IRQ unit - - 0 is a valid offset to an IRQ unit on EF1! */ -#define EFHW_IRQ_UNIT_UNUSED 0xffff - /*! interrupt unit in use for the interrupting event queue */ - unsigned int irq_unit; - - struct efhw_keventq non_interrupting_evq; - - struct efhw_iopage irq_iobuff; /*!< Falcon SYSERR interrupt */ - - /* The new driverlink infrastructure. */ - struct efx_dl_device *net_driver_dev; - struct efx_dlfilt_cb_s *dlfilter_cb; - - /*! Bit masks of the sizes of event queues and dma queues supported - * by the nic. */ - unsigned evq_sizes; - unsigned rxq_sizes; - unsigned txq_sizes; - - /* Size of filter table (including odd and even banks). */ - unsigned filter_tbl_size; -}; - - -#define EFHW_KVA(nic) ((nic)->bar_ioaddr) - - -#endif /* __CI_EFHW_EFHW_TYPES_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/hardware_sysdep.h --- a/drivers/xen/sfc_netback/ci/efhw/hardware_sysdep.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,86 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides version-independent Linux kernel API for header files - * with hardware-related definitions (in ci/driver/efab/hardware*). - * Only kernels >=2.6.9 are supported. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_HARDWARE_LINUX_H__ -#define __CI_EFHW_HARDWARE_LINUX_H__ - -#include <asm/io.h> - -#ifdef __LITTLE_ENDIAN -#define EFHW_IS_LITTLE_ENDIAN -#elif __BIG_ENDIAN -#define EFHW_IS_BIG_ENDIAN -#else -#error Unknown endianness -#endif - -#ifndef __iomem -#define __iomem -#endif - -#ifndef mmiowb - #if defined(__i386__) || defined(__x86_64__) - #define mmiowb() - #elif defined(__ia64__) - #ifndef ia64_mfa - #define ia64_mfa() asm volatile ("mf.a" ::: "memory") - #endif - #define mmiowb ia64_mfa - #else - #error "Need definition for mmiowb()" - #endif -#endif - -#ifndef readq -static inline uint64_t __readq(volatile void __iomem *addr) -{ - return *(volatile uint64_t *)addr; -} -#define readq(x) __readq(x) -#endif - -#ifndef writeq -static inline void __writeq(uint64_t v, volatile void __iomem *addr) -{ - *(volatile uint64_t *)addr = v; -} -#define writeq(val, addr) __writeq((val), (addr)) -#endif - -#endif /* __CI_EFHW_HARDWARE_LINUX_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/iopage_types.h --- a/drivers/xen/sfc_netback/ci/efhw/iopage_types.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,195 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides struct efhw_page and struct efhw_iopage for Linux - * kernel. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_IOPAGE_LINUX_H__ -#define __CI_EFHW_IOPAGE_LINUX_H__ - -#include <linux/version.h> -#include <linux/gfp.h> -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,9) -#include <linux/hardirq.h> -#else -#include <asm/hardirq.h> -#endif -#include <linux/errno.h> -#include <ci/efhw/debug.h> - -/*-------------------------------------------------------------------- - * - * struct efhw_page: A single page of memory. Directly mapped in the - * driver, and can be mapped to userlevel. - * - *--------------------------------------------------------------------*/ - -struct efhw_page { - unsigned long kva; -}; - -static inline int efhw_page_alloc(struct efhw_page *p) -{ - p->kva = __get_free_page(in_interrupt()? GFP_ATOMIC : GFP_KERNEL); - return p->kva ? 0 : -ENOMEM; -} - -static inline int efhw_page_alloc_zeroed(struct efhw_page *p) -{ - p->kva = get_zeroed_page(in_interrupt()? GFP_ATOMIC : GFP_KERNEL); - return p->kva ? 0 : -ENOMEM; -} - -static inline void efhw_page_free(struct efhw_page *p) -{ - free_page(p->kva); - EFHW_DO_DEBUG(memset(p, 0, sizeof(*p))); -} - -static inline char *efhw_page_ptr(struct efhw_page *p) -{ - return (char *)p->kva; -} - -static inline unsigned efhw_page_pfn(struct efhw_page *p) -{ - return (unsigned)(__pa(p->kva) >> PAGE_SHIFT); -} - -static inline void efhw_page_mark_invalid(struct efhw_page *p) -{ - p->kva = 0; -} - -static inline int efhw_page_is_valid(struct efhw_page *p) -{ - return p->kva != 0; -} - -static inline void efhw_page_init_from_va(struct efhw_page *p, void *va) -{ - p->kva = (unsigned long)va; -} - -/*-------------------------------------------------------------------- - * - * struct efhw_iopage: A single page of memory. Directly mapped in the driver, - * and can be mapped to userlevel. Can also be accessed by the NIC. - * - *--------------------------------------------------------------------*/ - -struct efhw_iopage { - struct efhw_page p; - dma_addr_t dma_addr; -}; - -static inline dma_addr_t efhw_iopage_dma_addr(struct efhw_iopage *p) -{ - return p->dma_addr; -} - -#define efhw_iopage_ptr(iop) efhw_page_ptr(&(iop)->p) -#define efhw_iopage_pfn(iop) efhw_page_pfn(&(iop)->p) -#define efhw_iopage_mark_invalid(iop) efhw_page_mark_invalid(&(iop)->p) -#define efhw_iopage_is_valid(iop) efhw_page_is_valid(&(iop)->p) - -/*-------------------------------------------------------------------- - * - * struct efhw_iopages: A set of pages that are contiguous in physical - * memory. Directly mapped in the driver, and can be mapped to userlevel. - * Can also be accessed by the NIC. - * - * NB. The O/S may be unwilling to allocate many, or even any of these. So - * only use this type where the NIC really needs a physically contiguous - * buffer. - * - *--------------------------------------------------------------------*/ - -struct efhw_iopages { - caddr_t kva; - unsigned order; - dma_addr_t dma_addr; -}; - -static inline caddr_t efhw_iopages_ptr(struct efhw_iopages *p) -{ - return p->kva; -} - -static inline unsigned efhw_iopages_pfn(struct efhw_iopages *p) -{ - return (unsigned)(__pa(p->kva) >> PAGE_SHIFT); -} - -static inline dma_addr_t efhw_iopages_dma_addr(struct efhw_iopages *p) -{ - return p->dma_addr; -} - -static inline unsigned efhw_iopages_size(struct efhw_iopages *p) -{ - return 1u << (p->order + PAGE_SHIFT); -} - -/* struct efhw_iopage <-> struct efhw_iopages conversions for handling - * physically contiguous allocations in iobufsets for iSCSI. This allows - * the essential information about contiguous allocations from - * efhw_iopages_alloc() to be saved away in the struct efhw_iopage array in - * an iobufset. (Changing the iobufset resource to use a union type would - * involve a lot of code changes, and make the iobufset's metadata larger - * which could be bad as it's supposed to fit into a single page on some - * platforms.) - */ -static inline void -efhw_iopage_init_from_iopages(struct efhw_iopage *iopage, - struct efhw_iopages *iopages, unsigned pageno) -{ - iopage->p.kva = ((unsigned long)efhw_iopages_ptr(iopages)) - + (pageno * PAGE_SIZE); - iopage->dma_addr = efhw_iopages_dma_addr(iopages) + - (pageno * PAGE_SIZE); -} - -static inline void -efhw_iopages_init_from_iopage(struct efhw_iopages *iopages, - struct efhw_iopage *iopage, unsigned order) -{ - iopages->kva = (caddr_t) efhw_iopage_ptr(iopage); - EFHW_ASSERT(iopages->kva); - iopages->order = order; - iopages->dma_addr = efhw_iopage_dma_addr(iopage); -} - -#endif /* __CI_EFHW_IOPAGE_LINUX_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/public.h --- a/drivers/xen/sfc_netback/ci/efhw/public.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,83 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides public API of efhw library exported from the SFC - * resource driver. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_PUBLIC_H__ -#define __CI_EFHW_PUBLIC_H__ - -#include <ci/efhw/common.h> -#include <ci/efhw/efhw_types.h> - -/*! Returns true if we have some EtherFabric functional units - - whether configured or not */ -static inline int efhw_nic_have_functional_units(struct efhw_nic *nic) -{ - return nic->efhw_func != 0; -} - -/*! Returns true if the EtherFabric functional units have been configured */ -static inline int efhw_nic_have_hw(struct efhw_nic *nic) -{ - return efhw_nic_have_functional_units(nic) && (EFHW_KVA(nic) != 0); -} - -/*! Helper function to allocate the iobuffer needed by an eventq - * - it ensures the eventq has the correct alignment for the NIC - * - * \param rm Event-queue resource manager - * \param instance Event-queue instance (index) - * \param buf_bytes Requested size of eventq - * \return < 0 if iobuffer allocation fails - */ -int efhw_nic_event_queue_alloc_iobuffer(struct efhw_nic *nic, - struct eventq_resource_hardware *h, - int evq_instance, unsigned buf_bytes); - -extern void falcon_nic_set_rx_usr_buf_size(struct efhw_nic *, - int rx_usr_buf_size); - -extern void -falcon_nic_rx_filter_ctl_set(struct efhw_nic *nic, uint32_t tcp_full, - uint32_t tcp_wild, - uint32_t udp_full, uint32_t udp_wild); - -extern void -falcon_nic_rx_filter_ctl_get(struct efhw_nic *nic, uint32_t *tcp_full, - uint32_t *tcp_wild, - uint32_t *udp_full, uint32_t *udp_wild); - -#endif /* __CI_EFHW_PUBLIC_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efhw/sysdep.h --- a/drivers/xen/sfc_netback/ci/efhw/sysdep.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,72 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides version-independent Linux kernel API for efhw library. - * Only kernels >=2.6.9 are supported. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFHW_SYSDEP_LINUX_H__ -#define __CI_EFHW_SYSDEP_LINUX_H__ - -#include <linux/version.h> -#include <linux/module.h> -#include <linux/spinlock.h> -#include <linux/delay.h> -#include <linux/if_ether.h> - -#include <linux/netdevice.h> /* necessary for etherdevice.h on some kernels */ -#include <linux/etherdevice.h> - -#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,21) -static inline int is_local_ether_addr(const u8 *addr) -{ - return (0x02 & addr[0]); -} -#endif - -typedef unsigned long irq_flags_t; - -#define spin_lock_destroy(l_) do {} while (0) - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) -#define HAS_NET_NAMESPACE -#endif - -/* Funny, but linux has round_up for x86 only, defined in - * x86-specific header */ -#ifndef round_up -#define round_up(x, y) (((x) + (y) - 1) & ~((y)-1)) -#endif - -#endif /* __CI_EFHW_SYSDEP_LINUX_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efrm/nic_table.h --- a/drivers/xen/sfc_netback/ci/efrm/nic_table.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,98 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides public API for NIC table. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFRM_NIC_TABLE_H__ -#define __CI_EFRM_NIC_TABLE_H__ - -#include <ci/efhw/efhw_types.h> -#include <ci/efrm/sysdep.h> - -/*-------------------------------------------------------------------- - * - * struct efrm_nic_table - top level driver object keeping all NICs - - * implemented in driver_object.c - * - *--------------------------------------------------------------------*/ - -/*! Comment? */ -struct efrm_nic_table { - /*! nics attached to this driver */ - struct efhw_nic *nic[EFHW_MAX_NR_DEVS]; - /*! pointer to an arbitrary struct efhw_nic if one exists; - * for code which does not care which NIC it wants but - * still needs one. Note you cannot assume nic[0] exists. */ - struct efhw_nic *a_nic; - uint32_t nic_count; /*!< number of nics attached to this driver */ - spinlock_t lock; /*!< lock for table modifications */ - atomic_t ref_count; /*!< refcount for users of nic table */ -}; - -/* Resource driver structures used by other drivers as well */ -extern struct efrm_nic_table *efrm_nic_tablep; - -static inline void efrm_nic_table_hold(void) -{ - atomic_inc(&efrm_nic_tablep->ref_count); -} - -static inline void efrm_nic_table_rele(void) -{ - atomic_dec(&efrm_nic_tablep->ref_count); -} - -static inline int efrm_nic_table_held(void) -{ - return (atomic_read(&efrm_nic_tablep->ref_count) != 0); -} - -/* Run code block _x multiple times with variable nic set to each - * registered NIC in turn. - * DO NOT "break" out of this loop early. */ -#define EFRM_FOR_EACH_NIC(_nic_i, _nic) \ - for ((_nic_i) = (efrm_nic_table_hold(), 0); \ - (_nic_i) < EFHW_MAX_NR_DEVS || (efrm_nic_table_rele(), 0); \ - (_nic_i)++) \ - if (((_nic) = efrm_nic_tablep->nic[_nic_i])) - -#define EFRM_FOR_EACH_NIC_IN_SET(_set, _i, _nic) \ - for ((_i) = (efrm_nic_table_hold(), 0); \ - (_i) < EFHW_MAX_NR_DEVS || (efrm_nic_table_rele(), 0); \ - ++(_i)) \ - if (((_nic) = efrm_nic_tablep->nic[_i]) && \ - efrm_nic_set_read((_set), (_i))) - -#endif /* __CI_EFRM_NIC_TABLE_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efrm/sysdep.h --- a/drivers/xen/sfc_netback/ci/efrm/sysdep.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,54 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides Linux-like system-independent API for efrm library. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFRM_SYSDEP_H__ -#define __CI_EFRM_SYSDEP_H__ - -/* Spinlocks are defined in efhw/sysdep.h */ -#include <ci/efhw/sysdep.h> - -#if defined(__linux__) && defined(__KERNEL__) - -# include <ci/efrm/sysdep_linux.h> - -#else - -# include <ci/efrm/sysdep_ci2linux.h> - -#endif - -#endif /* __CI_EFRM_SYSDEP_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netback/ci/efrm/sysdep_linux.h --- a/drivers/xen/sfc_netback/ci/efrm/sysdep_linux.h Fri Jan 08 13:06:22 2010 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,267 +0,0 @@ -/**************************************************************************** - * Driver for Solarflare network controllers - - * resource management for Xen backend, OpenOnload, etc - * (including support for SFE4001 10GBT NIC) - * - * This file provides version-independent Linux kernel API for efrm library. - * Only kernels >=2.6.9 are supported. - * - * Copyright 2005-2007: Solarflare Communications Inc, - * 9501 Jeronimo Road, Suite 250, - * Irvine, CA 92618, USA - * - * Kfifo API is partially stolen from linux-2.6.22/include/linux/list.h - * Copyright (C) 2004 Stelian Pop <stelian@xxxxxxxxxx> - * - * Developed and maintained by Solarflare Communications: - * <linux-xen-drivers@xxxxxxxxxxxxxx> - * <onload-dev@xxxxxxxxxxxxxx> - * - * Certain parts of the driver were implemented by - * Alexandra Kossovsky <Alexandra.Kossovsky@xxxxxxxxxxxx> - * OKTET Labs Ltd, Russia, - * http://oktetlabs.ru, <info@xxxxxxxxxxxx> - * by request of Solarflare Communications - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation, incorporated herein by reference. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - **************************************************************************** - */ - -#ifndef __CI_EFRM_SYSDEP_LINUX_H__ -#define __CI_EFRM_SYSDEP_LINUX_H__ - -#include <linux/version.h> -#include <linux/list.h> -#include <linux/vmalloc.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/workqueue.h> -#include <linux/gfp.h> -#include <linux/slab.h> -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,9) -#include <linux/hardirq.h> -#else -#include <asm/hardirq.h> -#endif -#include <linux/kernel.h> -#include <linux/if_ether.h> -#include <linux/completion.h> -#include <linux/in.h> - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20) -/* get roundup_pow_of_two(), which was in kernel.h in early kernel versions */ -#include <linux/log2.h> -#endif - - -/******************************************************************** - * - * Utility functions - * - ********************************************************************/ - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)) -static inline unsigned long __attribute_const__ roundup_pow_of_two(unsigned long x) -{ - return (1UL << fls(x - 1)); -} -#endif - - -/******************************************************************** - * - * List API - * - ********************************************************************/ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18) -static inline void -list_replace_init(struct list_head *old, struct list_head *new) -{ - new->next = old->next; - new->next->prev = new; - new->prev = old->prev; - new->prev->next = new; - INIT_LIST_HEAD(old); -} -#endif - -static inline struct list_head *list_pop(struct list_head *list) -{ - struct list_head *link = list->next; - list_del(link); - return link; -} - -static inline struct list_head *list_pop_tail(struct list_head *list) -{ - struct list_head *link = list->prev; - list_del(link); - return link; -} - -/******************************************************************** - * - * Workqueue API - * - ********************************************************************/ - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) -#define NEED_OLD_WORK_API - -/** - * The old and new work function prototypes just change - * the type of the pointer in the only argument, so it's - * safe to cast one function type to the other - */ -typedef void (*efrm_old_work_func_t) (void *p); - -#undef INIT_WORK -#define INIT_WORK(_work, _func) \ - do { \ - INIT_LIST_HEAD(&(_work)->entry); \ - (_work)->pending = 0; \ - PREPARE_WORK((_work), \ - (efrm_old_work_func_t) (_func), \ - (_work)); \ - } while (0) - -#endif - -/******************************************************************** - * - * Kfifo API - * - ********************************************************************/ - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) - -#if !defined(RHEL_RELEASE_CODE) || (RHEL_RELEASE_CODE < 1029) -typedef unsigned gfp_t; -#endif - -#define HAS_NO_KFIFO - -struct kfifo { - unsigned char *buffer; /* the buffer holding the data */ - unsigned int size; /* the size of the allocated buffer */ - unsigned int in; /* data is added at offset (in % size) */ - unsigned int out; /* data is extracted from off. (out % size) */ - spinlock_t *lock; /* protects concurrent modifications */ -}; - -extern struct kfifo *kfifo_init(unsigned char *buffer, unsigned int size, - gfp_t gfp_mask, spinlock_t *lock); -extern struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask, - spinlock_t *lock); -extern void kfifo_free(struct kfifo *fifo); -extern unsigned int __kfifo_put(struct kfifo *fifo, - unsigned char *buffer, unsigned int len); -extern unsigned int __kfifo_get(struct kfifo *fifo, - unsigned char *buffer, unsigned int len); - -/** - * kfifo_put - puts some data into the FIFO - * @fifo: the fifo to be used. - * @buffer: the data to be added. - * @len: the length of the data to be added. - * - * This function copies at most @len bytes from the @buffer into - * the FIFO depending on the free space, and returns the number of - * bytes copied. - */ -static inline unsigned int -kfifo_put(struct kfifo *fifo, unsigned char *buffer, unsigned int len) -{ - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(fifo->lock, flags); - - ret = __kfifo_put(fifo, buffer, len); - - spin_unlock_irqrestore(fifo->lock, flags); - - return ret; -} - -/** - * kfifo_get - gets some data from the FIFO - * @fifo: the fifo to be used. - * @buffer: where the data must be copied. - * @len: the size of the destination buffer. - * - * This function copies at most @len bytes from the FIFO into the - * @buffer and returns the number of copied bytes. - */ -static inline unsigned int -kfifo_get(struct kfifo *fifo, unsigned char *buffer, unsigned int len) -{ - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(fifo->lock, flags); - - ret = __kfifo_get(fifo, buffer, len); - - /* - * optimization: if the FIFO is empty, set the indices to 0 - * so we don't wrap the next time - */ - if (fifo->in == fifo->out) - fifo->in = fifo->out = 0; - - spin_unlock_irqrestore(fifo->lock, flags); - - return ret; -} - -/** - * __kfifo_len - returns the number of bytes available in the FIFO, no locking version - * @fifo: the fifo to be used. - */ -static inline unsigned int __kfifo_len(struct kfifo *fifo) -{ - return fifo->in - fifo->out; -} - -/** - * kfifo_len - returns the number of bytes available in the FIFO - * @fifo: the fifo to be used. - */ -static inline unsigned int kfifo_len(struct kfifo *fifo) -{ - unsigned long flags; - unsigned int ret; - - spin_lock_irqsave(fifo->lock, flags); - - ret = __kfifo_len(fifo); - - spin_unlock_irqrestore(fifo->lock, flags); - - return ret; -} - -#else -#include <linux/kfifo.h> -#endif - -static inline void kfifo_vfree(struct kfifo *fifo) -{ - vfree(fifo->buffer); - kfree(fifo); -} - -#endif /* __CI_EFRM_SYSDEP_LINUX_H__ */ diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netfront/accel_vi.c --- a/drivers/xen/sfc_netfront/accel_vi.c Fri Jan 08 13:06:22 2010 +0000 +++ b/drivers/xen/sfc_netfront/accel_vi.c Fri Jan 08 13:07:17 2010 +0000 @@ -89,6 +89,7 @@ int netfront_accel_vi_init_fini(netfront (hw_info->evq_rptr & (PAGE_SIZE - 1)); break; case NET_ACCEL_MSG_HWTYPE_FALCON_B: + case NET_ACCEL_MSG_HWTYPE_SIENA_A: hw_info = &hw_msg->resources.falcon_b; break; default: @@ -124,8 +125,9 @@ int netfront_accel_vi_init_fini(netfront } vnic->hw.falcon.doorbell = doorbell_kva; - /* On Falcon_B we get the rptr from the doorbell page */ - if (hw_msg->type == NET_ACCEL_MSG_HWTYPE_FALCON_B) { + /* On Falcon_B and Siena we get the rptr from the doorbell page */ + if (hw_msg->type == NET_ACCEL_MSG_HWTYPE_FALCON_B || + hw_msg->type == NET_ACCEL_MSG_HWTYPE_SIENA_A) { vnic->hw.falcon.evq_rptr = (u32 *)((char *)vnic->hw.falcon.doorbell + hw_info->evq_rptr); diff -r b8c2a9aacba6 -r 6061d5615522 drivers/xen/sfc_netutil/accel_msg_iface.h --- a/drivers/xen/sfc_netutil/accel_msg_iface.h Fri Jan 08 13:06:22 2010 +0000 +++ b/drivers/xen/sfc_netutil/accel_msg_iface.h Fri Jan 08 13:07:17 2010 +0000 @@ -120,6 +120,7 @@ enum net_accel_hw_type { /*! NIC is Falcon-based */ NET_ACCEL_MSG_HWTYPE_FALCON_A = 1, NET_ACCEL_MSG_HWTYPE_FALCON_B = 2, + NET_ACCEL_MSG_HWTYPE_SIENA_A = 3, }; /*! The maximum number of pages used by an event queue. */ _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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