c7818b48b6
hardware driver update from Mellanox Technologies. - Remove empty files from the OFED Linux Emulation layer. - Fix compile warnings related to printf() and the "%lld" and "%llx" format specifiers. - Add some missing 2-clause BSD copyrights. - Add "Mellanox Technologies, Ltd." to list of copyright holders. - Add some new compatibility files. - Fix order of uninit in the mlx4ib module to avoid crash at unload using the new module_exit_order() function. MFC after: 1 week Sponsored by: Mellanox Technologies
835 lines
22 KiB
C
835 lines
22 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUX_PCI_H_
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#define _LINUX_PCI_H_
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#define CONFIG_PCI_MSI
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#include <linux/types.h>
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/pciio.h>
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#include <sys/rman.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pci_private.h>
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#include <machine/resource.h>
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#include <linux/list.h>
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#include <linux/dmapool.h>
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#include <linux/dma-mapping.h>
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#include <linux/compiler.h>
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#include <linux/errno.h>
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#include <asm/atomic.h>
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#include <linux/device.h>
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struct pci_device_id {
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uint32_t vendor;
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uint32_t device;
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uint32_t subvendor;
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uint32_t subdevice;
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uint32_t class_mask;
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uintptr_t driver_data;
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};
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#define MODULE_DEVICE_TABLE(bus, table)
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#define PCI_ANY_ID (-1)
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#define PCI_VENDOR_ID_MELLANOX 0x15b3
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#define PCI_VENDOR_ID_TOPSPIN 0x1867
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#define PCI_DEVICE_ID_MELLANOX_TAVOR 0x5a44
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#define PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE 0x5a46
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#define PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT 0x6278
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#define PCI_DEVICE_ID_MELLANOX_ARBEL 0x6282
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#define PCI_DEVICE_ID_MELLANOX_SINAI_OLD 0x5e8c
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#define PCI_DEVICE_ID_MELLANOX_SINAI 0x6274
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#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
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#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
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#define PCI_FUNC(devfn) ((devfn) & 0x07)
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#define PCI_VDEVICE(_vendor, _device) \
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.vendor = PCI_VENDOR_ID_##_vendor, .device = (_device), \
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.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
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#define PCI_DEVICE(_vendor, _device) \
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.vendor = (_vendor), .device = (_device), \
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.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
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#define to_pci_dev(n) container_of(n, struct pci_dev, dev)
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#define PCI_VENDOR_ID PCIR_DEVVENDOR
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#define PCI_COMMAND PCIR_COMMAND
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#define PCI_EXP_DEVCTL PCIER_DEVICE_CTL /* Device Control */
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#define PCI_EXP_LNKCTL PCIER_LINK_CTL /* Link Control */
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#define PCI_EXP_FLAGS_TYPE PCIEM_FLAGS_TYPE /* Device/Port type */
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#define PCI_EXP_DEVCAP PCIER_DEVICE_CAP /* Device capabilities */
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#define PCI_EXP_DEVSTA PCIER_DEVICE_STA /* Device Status */
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#define PCI_EXP_LNKCAP PCIER_LINK_CAP /* Link Capabilities */
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#define PCI_EXP_LNKSTA PCIER_LINK_STA /* Link Status */
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#define PCI_EXP_SLTCAP PCIER_SLOT_CAP /* Slot Capabilities */
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#define PCI_EXP_SLTCTL PCIER_SLOT_CTL /* Slot Control */
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#define PCI_EXP_SLTSTA PCIER_SLOT_STA /* Slot Status */
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#define PCI_EXP_RTCTL PCIER_ROOT_CTL /* Root Control */
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#define PCI_EXP_RTCAP PCIER_ROOT_CAP /* Root Capabilities */
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#define PCI_EXP_RTSTA PCIER_ROOT_STA /* Root Status */
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#define PCI_EXP_DEVCAP2 PCIER_DEVICE_CAP2 /* Device Capabilities 2 */
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#define PCI_EXP_DEVCTL2 PCIER_DEVICE_CTL2 /* Device Control 2 */
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#define PCI_EXP_LNKCAP2 PCIER_LINK_CAP2 /* Link Capabilities 2 */
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#define PCI_EXP_LNKCTL2 PCIER_LINK_CTL2 /* Link Control 2 */
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#define PCI_EXP_LNKSTA2 PCIER_LINK_STA2 /* Link Status 2 */
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#define PCI_EXP_FLAGS PCIER_FLAGS /* Capabilities register */
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#define PCI_EXP_FLAGS_VERS PCIEM_FLAGS_VERSION /* Capability version */
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#define PCI_EXP_TYPE_ROOT_PORT PCIEM_TYPE_ROOT_PORT /* Root Port */
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#define PCI_EXP_TYPE_ENDPOINT PCIEM_TYPE_ENDPOINT /* Express Endpoint */
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#define PCI_EXP_TYPE_LEG_END PCIEM_TYPE_LEGACY_ENDPOINT /* Legacy Endpoint */
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#define PCI_EXP_TYPE_DOWNSTREAM PCIEM_TYPE_DOWNSTREAM_PORT /* Downstream Port */
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#define PCI_EXP_FLAGS_SLOT PCIEM_FLAGS_SLOT /* Slot implemented */
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#define PCI_EXP_TYPE_RC_EC PCIEM_TYPE_ROOT_EC /* Root Complex Event Collector */
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#define IORESOURCE_MEM SYS_RES_MEMORY
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#define IORESOURCE_IO SYS_RES_IOPORT
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#define IORESOURCE_IRQ SYS_RES_IRQ
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struct pci_dev;
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struct pci_driver {
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struct list_head links;
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char *name;
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const struct pci_device_id *id_table;
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int (*probe)(struct pci_dev *dev, const struct pci_device_id *id);
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void (*remove)(struct pci_dev *dev);
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int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */
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int (*resume) (struct pci_dev *dev); /* Device woken up */
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driver_t driver;
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devclass_t bsdclass;
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const struct pci_error_handlers *err_handler;
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};
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extern struct list_head pci_drivers;
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extern struct list_head pci_devices;
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extern spinlock_t pci_lock;
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#define __devexit_p(x) x
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struct pci_dev {
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struct device dev;
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struct list_head links;
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struct pci_driver *pdrv;
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uint64_t dma_mask;
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uint16_t device;
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uint16_t vendor;
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unsigned int irq;
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unsigned int devfn;
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u8 revision;
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struct pci_devinfo *bus; /* bus this device is on, equivalent to linux struct pci_bus */
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};
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static inline struct resource_list_entry *
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_pci_get_rle(struct pci_dev *pdev, int type, int rid)
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{
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struct pci_devinfo *dinfo;
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struct resource_list *rl;
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dinfo = device_get_ivars(pdev->dev.bsddev);
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rl = &dinfo->resources;
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return resource_list_find(rl, type, rid);
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}
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static inline struct resource_list_entry *
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_pci_get_bar(struct pci_dev *pdev, int bar)
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{
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struct resource_list_entry *rle;
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bar = PCIR_BAR(bar);
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if ((rle = _pci_get_rle(pdev, SYS_RES_MEMORY, bar)) == NULL)
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rle = _pci_get_rle(pdev, SYS_RES_IOPORT, bar);
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return (rle);
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}
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static inline struct device *
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_pci_find_irq_dev(unsigned int irq)
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{
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struct pci_dev *pdev;
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spin_lock(&pci_lock);
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list_for_each_entry(pdev, &pci_devices, links) {
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if (irq == pdev->dev.irq)
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break;
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if (irq >= pdev->dev.msix && irq < pdev->dev.msix_max)
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break;
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}
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spin_unlock(&pci_lock);
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if (pdev)
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return &pdev->dev;
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return (NULL);
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}
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static inline unsigned long
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pci_resource_start(struct pci_dev *pdev, int bar)
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{
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struct resource_list_entry *rle;
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if ((rle = _pci_get_bar(pdev, bar)) == NULL)
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return (0);
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return rle->start;
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}
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static inline unsigned long
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pci_resource_len(struct pci_dev *pdev, int bar)
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{
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struct resource_list_entry *rle;
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if ((rle = _pci_get_bar(pdev, bar)) == NULL)
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return (0);
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return rle->count;
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}
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/*
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* All drivers just seem to want to inspect the type not flags.
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*/
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static inline int
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pci_resource_flags(struct pci_dev *pdev, int bar)
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{
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struct resource_list_entry *rle;
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if ((rle = _pci_get_bar(pdev, bar)) == NULL)
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return (0);
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return rle->type;
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}
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static inline const char *
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pci_name(struct pci_dev *d)
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{
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return device_get_desc(d->dev.bsddev);
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}
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static inline void *
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pci_get_drvdata(struct pci_dev *pdev)
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{
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return dev_get_drvdata(&pdev->dev);
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}
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static inline void
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pci_set_drvdata(struct pci_dev *pdev, void *data)
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{
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dev_set_drvdata(&pdev->dev, data);
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}
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static inline int
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pci_enable_device(struct pci_dev *pdev)
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{
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pci_enable_io(pdev->dev.bsddev, SYS_RES_IOPORT);
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pci_enable_io(pdev->dev.bsddev, SYS_RES_MEMORY);
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return (0);
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}
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static inline void
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pci_disable_device(struct pci_dev *pdev)
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{
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}
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static inline int
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pci_set_master(struct pci_dev *pdev)
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{
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pci_enable_busmaster(pdev->dev.bsddev);
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return (0);
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}
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static inline int
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pci_request_region(struct pci_dev *pdev, int bar, const char *res_name)
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{
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int rid;
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int type;
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type = pci_resource_flags(pdev, bar);
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if (type == 0)
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return (-ENODEV);
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rid = PCIR_BAR(bar);
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if (bus_alloc_resource_any(pdev->dev.bsddev, type, &rid,
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RF_ACTIVE) == NULL)
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return (-EINVAL);
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return (0);
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}
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static inline void
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pci_release_region(struct pci_dev *pdev, int bar)
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{
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struct resource_list_entry *rle;
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if ((rle = _pci_get_bar(pdev, bar)) == NULL)
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return;
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bus_release_resource(pdev->dev.bsddev, rle->type, rle->rid, rle->res);
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}
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static inline void
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pci_release_regions(struct pci_dev *pdev)
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{
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int i;
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for (i = 0; i <= PCIR_MAX_BAR_0; i++)
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pci_release_region(pdev, i);
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}
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static inline int
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pci_request_regions(struct pci_dev *pdev, const char *res_name)
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{
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int error;
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int i;
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for (i = 0; i <= PCIR_MAX_BAR_0; i++) {
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error = pci_request_region(pdev, i, res_name);
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if (error && error != -ENODEV) {
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pci_release_regions(pdev);
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return (error);
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}
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}
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return (0);
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}
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static inline void
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pci_disable_msix(struct pci_dev *pdev)
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{
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pci_release_msi(pdev->dev.bsddev);
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}
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#define PCI_CAP_ID_EXP PCIY_EXPRESS
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#define PCI_CAP_ID_PCIX PCIY_PCIX
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static inline int
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pci_find_capability(struct pci_dev *pdev, int capid)
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{
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int reg;
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if (pci_find_cap(pdev->dev.bsddev, capid, ®))
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return (0);
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return (reg);
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}
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/**
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* pci_pcie_cap - get the saved PCIe capability offset
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* @dev: PCI device
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*
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* PCIe capability offset is calculated at PCI device initialization
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* time and saved in the data structure. This function returns saved
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* PCIe capability offset. Using this instead of pci_find_capability()
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* reduces unnecessary search in the PCI configuration space. If you
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* need to calculate PCIe capability offset from raw device for some
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* reasons, please use pci_find_capability() instead.
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*/
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static inline int pci_pcie_cap(struct pci_dev *dev)
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{
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return pci_find_capability(dev, PCI_CAP_ID_EXP);
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}
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static inline int
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pci_read_config_byte(struct pci_dev *pdev, int where, u8 *val)
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{
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*val = (u8)pci_read_config(pdev->dev.bsddev, where, 1);
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return (0);
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}
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static inline int
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pci_read_config_word(struct pci_dev *pdev, int where, u16 *val)
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{
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*val = (u16)pci_read_config(pdev->dev.bsddev, where, 2);
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return (0);
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}
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static inline int
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pci_read_config_dword(struct pci_dev *pdev, int where, u32 *val)
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{
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*val = (u32)pci_read_config(pdev->dev.bsddev, where, 4);
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return (0);
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}
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static inline int
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pci_write_config_byte(struct pci_dev *pdev, int where, u8 val)
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{
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pci_write_config(pdev->dev.bsddev, where, val, 1);
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return (0);
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}
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static inline int
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pci_write_config_word(struct pci_dev *pdev, int where, u16 val)
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{
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pci_write_config(pdev->dev.bsddev, where, val, 2);
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return (0);
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}
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static inline int
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pci_write_config_dword(struct pci_dev *pdev, int where, u32 val)
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{
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pci_write_config(pdev->dev.bsddev, where, val, 4);
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return (0);
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}
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static struct pci_driver *
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linux_pci_find(device_t dev, const struct pci_device_id **idp)
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{
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const struct pci_device_id *id;
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struct pci_driver *pdrv;
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uint16_t vendor;
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uint16_t device;
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vendor = pci_get_vendor(dev);
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device = pci_get_device(dev);
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spin_lock(&pci_lock);
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list_for_each_entry(pdrv, &pci_drivers, links) {
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for (id = pdrv->id_table; id->vendor != 0; id++) {
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if (vendor == id->vendor && device == id->device) {
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*idp = id;
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spin_unlock(&pci_lock);
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return (pdrv);
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}
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}
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}
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spin_unlock(&pci_lock);
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return (NULL);
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}
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static inline int
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linux_pci_probe(device_t dev)
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{
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const struct pci_device_id *id;
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struct pci_driver *pdrv;
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if ((pdrv = linux_pci_find(dev, &id)) == NULL)
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return (ENXIO);
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if (device_get_driver(dev) != &pdrv->driver)
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return (ENXIO);
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device_set_desc(dev, pdrv->name);
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return (0);
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}
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static inline int
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linux_pci_attach(device_t dev)
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{
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struct resource_list_entry *rle;
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struct pci_dev *pdev;
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struct pci_driver *pdrv;
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const struct pci_device_id *id;
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int error;
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pdrv = linux_pci_find(dev, &id);
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pdev = device_get_softc(dev);
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pdev->dev.parent = &linux_rootdev;
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pdev->dev.bsddev = dev;
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INIT_LIST_HEAD(&pdev->dev.irqents);
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pdev->device = id->device;
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pdev->vendor = id->vendor;
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pdev->dev.dma_mask = &pdev->dma_mask;
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pdev->pdrv = pdrv;
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kobject_init(&pdev->dev.kobj, &dev_ktype);
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kobject_set_name(&pdev->dev.kobj, device_get_nameunit(dev));
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kobject_add(&pdev->dev.kobj, &linux_rootdev.kobj,
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kobject_name(&pdev->dev.kobj));
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rle = _pci_get_rle(pdev, SYS_RES_IRQ, 0);
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if (rle)
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pdev->dev.irq = rle->start;
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else
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pdev->dev.irq = 0;
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pdev->irq = pdev->dev.irq;
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mtx_unlock(&Giant);
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spin_lock(&pci_lock);
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list_add(&pdev->links, &pci_devices);
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spin_unlock(&pci_lock);
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error = pdrv->probe(pdev, id);
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mtx_lock(&Giant);
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if (error) {
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spin_lock(&pci_lock);
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list_del(&pdev->links);
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spin_unlock(&pci_lock);
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put_device(&pdev->dev);
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return (-error);
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}
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return (0);
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}
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|
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static inline int
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linux_pci_detach(device_t dev)
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|
{
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|
struct pci_dev *pdev;
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|
|
pdev = device_get_softc(dev);
|
|
mtx_unlock(&Giant);
|
|
pdev->pdrv->remove(pdev);
|
|
mtx_lock(&Giant);
|
|
spin_lock(&pci_lock);
|
|
list_del(&pdev->links);
|
|
spin_unlock(&pci_lock);
|
|
put_device(&pdev->dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t pci_methods[] = {
|
|
DEVMETHOD(device_probe, linux_pci_probe),
|
|
DEVMETHOD(device_attach, linux_pci_attach),
|
|
DEVMETHOD(device_detach, linux_pci_detach),
|
|
{0, 0}
|
|
};
|
|
|
|
static inline int
|
|
pci_register_driver(struct pci_driver *pdrv)
|
|
{
|
|
devclass_t bus;
|
|
int error;
|
|
|
|
spin_lock(&pci_lock);
|
|
list_add(&pdrv->links, &pci_drivers);
|
|
spin_unlock(&pci_lock);
|
|
bus = devclass_find("pci");
|
|
pdrv->driver.name = pdrv->name;
|
|
pdrv->driver.methods = pci_methods;
|
|
pdrv->driver.size = sizeof(struct pci_dev);
|
|
mtx_lock(&Giant);
|
|
error = devclass_add_driver(bus, &pdrv->driver, BUS_PASS_DEFAULT,
|
|
&pdrv->bsdclass);
|
|
mtx_unlock(&Giant);
|
|
if (error)
|
|
return (-error);
|
|
return (0);
|
|
}
|
|
|
|
static inline void
|
|
pci_unregister_driver(struct pci_driver *pdrv)
|
|
{
|
|
devclass_t bus;
|
|
|
|
list_del(&pdrv->links);
|
|
bus = devclass_find("pci");
|
|
mtx_lock(&Giant);
|
|
devclass_delete_driver(bus, &pdrv->driver);
|
|
mtx_unlock(&Giant);
|
|
}
|
|
|
|
struct msix_entry {
|
|
int entry;
|
|
int vector;
|
|
};
|
|
|
|
/*
|
|
* Enable msix, positive errors indicate actual number of available
|
|
* vectors. Negative errors are failures.
|
|
*
|
|
* NB: define added to prevent this definition of pci_enable_msix from
|
|
* clashing with the native FreeBSD version.
|
|
*/
|
|
#define pci_enable_msix linux_pci_enable_msix
|
|
static inline int
|
|
pci_enable_msix(struct pci_dev *pdev, struct msix_entry *entries, int nreq)
|
|
{
|
|
struct resource_list_entry *rle;
|
|
int error;
|
|
int avail;
|
|
int i;
|
|
|
|
avail = pci_msix_count(pdev->dev.bsddev);
|
|
if (avail < nreq) {
|
|
if (avail == 0)
|
|
return -EINVAL;
|
|
return avail;
|
|
}
|
|
avail = nreq;
|
|
if ((error = -pci_alloc_msix(pdev->dev.bsddev, &avail)) != 0)
|
|
return error;
|
|
rle = _pci_get_rle(pdev, SYS_RES_IRQ, 1);
|
|
pdev->dev.msix = rle->start;
|
|
pdev->dev.msix_max = rle->start + avail;
|
|
for (i = 0; i < nreq; i++)
|
|
entries[i].vector = pdev->dev.msix + i;
|
|
return (0);
|
|
}
|
|
|
|
static inline int pci_channel_offline(struct pci_dev *pdev)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline void pci_disable_sriov(struct pci_dev *dev)
|
|
{
|
|
}
|
|
|
|
/**
|
|
* DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table
|
|
* @_table: device table name
|
|
*
|
|
* This macro is used to create a struct pci_device_id array (a device table)
|
|
* in a generic manner.
|
|
*/
|
|
#define DEFINE_PCI_DEVICE_TABLE(_table) \
|
|
const struct pci_device_id _table[] __devinitdata
|
|
|
|
|
|
/* XXX This should not be necessary. */
|
|
#define pcix_set_mmrbc(d, v) 0
|
|
#define pcix_get_max_mmrbc(d) 0
|
|
#define pcie_set_readrq(d, v) 0
|
|
|
|
#define PCI_DMA_BIDIRECTIONAL 0
|
|
#define PCI_DMA_TODEVICE 1
|
|
#define PCI_DMA_FROMDEVICE 2
|
|
#define PCI_DMA_NONE 3
|
|
|
|
#define pci_pool dma_pool
|
|
#define pci_pool_destroy dma_pool_destroy
|
|
#define pci_pool_alloc dma_pool_alloc
|
|
#define pci_pool_free dma_pool_free
|
|
#define pci_pool_create(_name, _pdev, _size, _align, _alloc) \
|
|
dma_pool_create(_name, &(_pdev)->dev, _size, _align, _alloc)
|
|
#define pci_free_consistent(_hwdev, _size, _vaddr, _dma_handle) \
|
|
dma_free_coherent((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \
|
|
_size, _vaddr, _dma_handle)
|
|
#define pci_map_sg(_hwdev, _sg, _nents, _dir) \
|
|
dma_map_sg((_hwdev) == NULL ? NULL : &(_hwdev->dev), \
|
|
_sg, _nents, (enum dma_data_direction)_dir)
|
|
#define pci_map_single(_hwdev, _ptr, _size, _dir) \
|
|
dma_map_single((_hwdev) == NULL ? NULL : &(_hwdev->dev), \
|
|
(_ptr), (_size), (enum dma_data_direction)_dir)
|
|
#define pci_unmap_single(_hwdev, _addr, _size, _dir) \
|
|
dma_unmap_single((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \
|
|
_addr, _size, (enum dma_data_direction)_dir)
|
|
#define pci_unmap_sg(_hwdev, _sg, _nents, _dir) \
|
|
dma_unmap_sg((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \
|
|
_sg, _nents, (enum dma_data_direction)_dir)
|
|
#define pci_map_page(_hwdev, _page, _offset, _size, _dir) \
|
|
dma_map_page((_hwdev) == NULL ? NULL : &(_hwdev)->dev, _page,\
|
|
_offset, _size, (enum dma_data_direction)_dir)
|
|
#define pci_unmap_page(_hwdev, _dma_address, _size, _dir) \
|
|
dma_unmap_page((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \
|
|
_dma_address, _size, (enum dma_data_direction)_dir)
|
|
#define pci_set_dma_mask(_pdev, mask) dma_set_mask(&(_pdev)->dev, (mask))
|
|
#define pci_dma_mapping_error(_pdev, _dma_addr) \
|
|
dma_mapping_error(&(_pdev)->dev, _dma_addr)
|
|
#define pci_set_consistent_dma_mask(_pdev, _mask) \
|
|
dma_set_coherent_mask(&(_pdev)->dev, (_mask))
|
|
#define DECLARE_PCI_UNMAP_ADDR(x) DEFINE_DMA_UNMAP_ADDR(x);
|
|
#define DECLARE_PCI_UNMAP_LEN(x) DEFINE_DMA_UNMAP_LEN(x);
|
|
#define pci_unmap_addr dma_unmap_addr
|
|
#define pci_unmap_addr_set dma_unmap_addr_set
|
|
#define pci_unmap_len dma_unmap_len
|
|
#define pci_unmap_len_set dma_unmap_len_set
|
|
|
|
typedef unsigned int __bitwise pci_channel_state_t;
|
|
typedef unsigned int __bitwise pci_ers_result_t;
|
|
|
|
enum pci_channel_state {
|
|
/* I/O channel is in normal state */
|
|
pci_channel_io_normal = (__force pci_channel_state_t) 1,
|
|
|
|
/* I/O to channel is blocked */
|
|
pci_channel_io_frozen = (__force pci_channel_state_t) 2,
|
|
|
|
/* PCI card is dead */
|
|
pci_channel_io_perm_failure = (__force pci_channel_state_t) 3,
|
|
};
|
|
|
|
enum pci_ers_result {
|
|
/* no result/none/not supported in device driver */
|
|
PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1,
|
|
|
|
/* Device driver can recover without slot reset */
|
|
PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2,
|
|
|
|
/* Device driver wants slot to be reset. */
|
|
PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3,
|
|
|
|
/* Device has completely failed, is unrecoverable */
|
|
PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4,
|
|
|
|
/* Device driver is fully recovered and operational */
|
|
PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5,
|
|
};
|
|
|
|
|
|
/* PCI bus error event callbacks */
|
|
struct pci_error_handlers {
|
|
/* PCI bus error detected on this device */
|
|
pci_ers_result_t (*error_detected)(struct pci_dev *dev,
|
|
enum pci_channel_state error);
|
|
|
|
/* MMIO has been re-enabled, but not DMA */
|
|
pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev);
|
|
|
|
/* PCI Express link has been reset */
|
|
pci_ers_result_t (*link_reset)(struct pci_dev *dev);
|
|
|
|
/* PCI slot has been reset */
|
|
pci_ers_result_t (*slot_reset)(struct pci_dev *dev);
|
|
|
|
/* Device driver may resume normal operations */
|
|
void (*resume)(struct pci_dev *dev);
|
|
};
|
|
|
|
/* freeBSD does not support SRIOV - yet */
|
|
static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
|
|
{
|
|
return dev;
|
|
}
|
|
|
|
static inline bool pci_is_pcie(struct pci_dev *dev)
|
|
{
|
|
return !!pci_pcie_cap(dev);
|
|
}
|
|
|
|
static inline u16 pcie_flags_reg(struct pci_dev *dev)
|
|
{
|
|
int pos;
|
|
u16 reg16;
|
|
|
|
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
|
|
if (!pos)
|
|
return 0;
|
|
|
|
pci_read_config_word(dev, pos + PCI_EXP_FLAGS, ®16);
|
|
|
|
return reg16;
|
|
}
|
|
|
|
|
|
static inline int pci_pcie_type(struct pci_dev *dev)
|
|
{
|
|
return (pcie_flags_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4;
|
|
}
|
|
|
|
static inline int pcie_cap_version(struct pci_dev *dev)
|
|
{
|
|
return pcie_flags_reg(dev) & PCI_EXP_FLAGS_VERS;
|
|
}
|
|
|
|
static inline bool pcie_cap_has_lnkctl(struct pci_dev *dev)
|
|
{
|
|
int type = pci_pcie_type(dev);
|
|
|
|
return pcie_cap_version(dev) > 1 ||
|
|
type == PCI_EXP_TYPE_ROOT_PORT ||
|
|
type == PCI_EXP_TYPE_ENDPOINT ||
|
|
type == PCI_EXP_TYPE_LEG_END;
|
|
}
|
|
|
|
static inline bool pcie_cap_has_devctl(const struct pci_dev *dev)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline bool pcie_cap_has_sltctl(struct pci_dev *dev)
|
|
{
|
|
int type = pci_pcie_type(dev);
|
|
|
|
return pcie_cap_version(dev) > 1 ||
|
|
type == PCI_EXP_TYPE_ROOT_PORT ||
|
|
(type == PCI_EXP_TYPE_DOWNSTREAM &&
|
|
pcie_flags_reg(dev) & PCI_EXP_FLAGS_SLOT);
|
|
}
|
|
|
|
static inline bool pcie_cap_has_rtctl(struct pci_dev *dev)
|
|
{
|
|
int type = pci_pcie_type(dev);
|
|
|
|
return pcie_cap_version(dev) > 1 ||
|
|
type == PCI_EXP_TYPE_ROOT_PORT ||
|
|
type == PCI_EXP_TYPE_RC_EC;
|
|
}
|
|
|
|
static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos)
|
|
{
|
|
if (!pci_is_pcie(dev))
|
|
return false;
|
|
|
|
switch (pos) {
|
|
case PCI_EXP_FLAGS_TYPE:
|
|
return true;
|
|
case PCI_EXP_DEVCAP:
|
|
case PCI_EXP_DEVCTL:
|
|
case PCI_EXP_DEVSTA:
|
|
return pcie_cap_has_devctl(dev);
|
|
case PCI_EXP_LNKCAP:
|
|
case PCI_EXP_LNKCTL:
|
|
case PCI_EXP_LNKSTA:
|
|
return pcie_cap_has_lnkctl(dev);
|
|
case PCI_EXP_SLTCAP:
|
|
case PCI_EXP_SLTCTL:
|
|
case PCI_EXP_SLTSTA:
|
|
return pcie_cap_has_sltctl(dev);
|
|
case PCI_EXP_RTCTL:
|
|
case PCI_EXP_RTCAP:
|
|
case PCI_EXP_RTSTA:
|
|
return pcie_cap_has_rtctl(dev);
|
|
case PCI_EXP_DEVCAP2:
|
|
case PCI_EXP_DEVCTL2:
|
|
case PCI_EXP_LNKCAP2:
|
|
case PCI_EXP_LNKCTL2:
|
|
case PCI_EXP_LNKSTA2:
|
|
return pcie_cap_version(dev) > 1;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
static inline int pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val)
|
|
{
|
|
if (pos & 1)
|
|
return -EINVAL;
|
|
|
|
if (!pcie_capability_reg_implemented(dev, pos))
|
|
return 0;
|
|
|
|
return pci_write_config_word(dev, pci_pcie_cap(dev) + pos, val);
|
|
}
|
|
|
|
|
|
#endif /* _LINUX_PCI_H_ */
|