diff options
Diffstat (limited to 'drivers/ntb/ntb_hw.h')
| -rw-r--r-- | drivers/ntb/ntb_hw.h | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h deleted file mode 100644 index 3a3038ca83e6..000000000000 --- a/drivers/ntb/ntb_hw.h +++ /dev/null @@ -1,181 +0,0 @@ -/* - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2012 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * BSD LICENSE - * - * Copyright(c) 2012 Intel Corporation. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copy - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Intel PCIe NTB Linux driver - * - * Contact Information: - * Jon Mason <jon.mason@intel.com> - */ - -#define PCI_DEVICE_ID_INTEL_NTB_B2B_JSF 0x3725 -#define PCI_DEVICE_ID_INTEL_NTB_CLASSIC_JSF 0x3726 -#define PCI_DEVICE_ID_INTEL_NTB_RP_JSF 0x3727 -#define PCI_DEVICE_ID_INTEL_NTB_RP_SNB 0x3C08 -#define PCI_DEVICE_ID_INTEL_NTB_B2B_SNB 0x3C0D -#define PCI_DEVICE_ID_INTEL_NTB_CLASSIC_SNB 0x3C0E -#define PCI_DEVICE_ID_INTEL_NTB_2ND_SNB 0x3C0F -#define PCI_DEVICE_ID_INTEL_NTB_B2B_BWD 0x0C4E - -#define msix_table_size(control) ((control & PCI_MSIX_FLAGS_QSIZE)+1) - -#define NTB_BAR_MMIO 0 -#define NTB_BAR_23 2 -#define NTB_BAR_45 4 -#define NTB_BAR_MASK ((1 << NTB_BAR_MMIO) | (1 << NTB_BAR_23) |\ - (1 << NTB_BAR_45)) - -#define NTB_LINK_DOWN 0 -#define NTB_LINK_UP 1 - -#define NTB_HB_TIMEOUT msecs_to_jiffies(1000) - -#define NTB_NUM_MW 2 - -enum ntb_hw_event { - NTB_EVENT_SW_EVENT0 = 0, - NTB_EVENT_SW_EVENT1, - NTB_EVENT_SW_EVENT2, - NTB_EVENT_HW_ERROR, - NTB_EVENT_HW_LINK_UP, - NTB_EVENT_HW_LINK_DOWN, -}; - -struct ntb_mw { - dma_addr_t phys_addr; - void __iomem *vbase; - resource_size_t bar_sz; -}; - -struct ntb_db_cb { - void (*callback) (void *data, int db_num); - unsigned int db_num; - void *data; - struct ntb_device *ndev; -}; - -struct ntb_device { - struct pci_dev *pdev; - struct msix_entry *msix_entries; - void __iomem *reg_base; - struct ntb_mw mw[NTB_NUM_MW]; - struct { - unsigned int max_spads; - unsigned int max_db_bits; - unsigned int msix_cnt; - } limits; - struct { - void __iomem *pdb; - void __iomem *pdb_mask; - void __iomem *sdb; - void __iomem *sbar2_xlat; - void __iomem *sbar4_xlat; - void __iomem *spad_write; - void __iomem *spad_read; - void __iomem *lnk_cntl; - void __iomem *lnk_stat; - void __iomem *spci_cmd; - } reg_ofs; - struct ntb_transport *ntb_transport; - void (*event_cb)(void *handle, enum ntb_hw_event event); - - struct ntb_db_cb *db_cb; - unsigned char hw_type; - unsigned char conn_type; - unsigned char dev_type; - unsigned char num_msix; - unsigned char bits_per_vector; - unsigned char max_cbs; - unsigned char link_status; - struct delayed_work hb_timer; - unsigned long last_ts; -}; - -/** - * ntb_hw_link_status() - return the hardware link status - * @ndev: pointer to ntb_device instance - * - * Returns true if the hardware is connected to the remote system - * - * RETURNS: true or false based on the hardware link state - */ -static inline bool ntb_hw_link_status(struct ntb_device *ndev) -{ - return ndev->link_status == NTB_LINK_UP; -} - -/** - * ntb_query_pdev() - return the pci_dev pointer - * @ndev: pointer to ntb_device instance - * - * Given the ntb pointer return the pci_dev pointerfor the NTB hardware device - * - * RETURNS: a pointer to the ntb pci_dev - */ -static inline struct pci_dev *ntb_query_pdev(struct ntb_device *ndev) -{ - return ndev->pdev; -} - -struct ntb_device *ntb_register_transport(struct pci_dev *pdev, - void *transport); -void ntb_unregister_transport(struct ntb_device *ndev); -void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr); -int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, - void *data, void (*db_cb_func) (void *data, - int db_num)); -void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx); -int ntb_register_event_callback(struct ntb_device *ndev, - void (*event_cb_func) (void *handle, - enum ntb_hw_event event)); -void ntb_unregister_event_callback(struct ntb_device *ndev); -int ntb_get_max_spads(struct ntb_device *ndev); -int ntb_write_local_spad(struct ntb_device *ndev, unsigned int idx, u32 val); -int ntb_read_local_spad(struct ntb_device *ndev, unsigned int idx, u32 *val); -int ntb_write_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 val); -int ntb_read_remote_spad(struct ntb_device *ndev, unsigned int idx, u32 *val); -void __iomem *ntb_get_mw_vbase(struct ntb_device *ndev, unsigned int mw); -resource_size_t ntb_get_mw_size(struct ntb_device *ndev, unsigned int mw); -void ntb_ring_sdb(struct ntb_device *ndev, unsigned int idx); -void *ntb_find_transport(struct pci_dev *pdev); - -int ntb_transport_init(struct pci_dev *pdev); -void ntb_transport_free(void *transport); |