/*-
* BSD LICENSE
- *
+ *
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* 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 copyright
* * 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
*/
/* BSD LICENSE
*
- * Copyright(c) 2013 6WIND.
+ * Copyright 2013-2014 6WIND S.A.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#include <sys/queue.h>
#include <stdint.h>
#include <inttypes.h>
+
#include <rte_interrupts.h>
TAILQ_HEAD(pci_device_list, rte_pci_device); /**< PCI devices in D-linked Q. */
TAILQ_HEAD(pci_driver_list, rte_pci_driver); /**< PCI drivers in D-linked Q. */
-extern struct pci_driver_list driver_list; /**< Global list of PCI drivers. */
-extern struct pci_device_list device_list; /**< Global list of PCI devices. */
+extern struct pci_driver_list pci_driver_list; /**< Global list of PCI drivers. */
+extern struct pci_device_list pci_device_list; /**< Global list of PCI devices. */
/** Pathname of PCI devices directory. */
#define SYSFS_PCI_DEVICES "/sys/bus/pci/devices"
/** Formatting string for PCI device identifier: Ex: 0000:00:01.0 */
-#define PCI_PRI_FMT "%.4"PRIx16":%.2"PRIx8":%.2"PRIx8".%"PRIx8
+#define PCI_PRI_FMT "%.4" PRIx16 ":%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8
/** Short formatting string, without domain, for PCI device: Ex: 00:01.0 */
-#define PCI_SHORT_PRI_FMT "%.2"PRIx8":%.2"PRIx8".%"PRIx8
+#define PCI_SHORT_PRI_FMT "%.2" PRIx8 ":%.2" PRIx8 ".%" PRIx8
/** Nb. of values in PCI device identifier format string. */
#define PCI_FMT_NVAL 4
/** Nb. of values in PCI resource format. */
#define PCI_RESOURCE_FMT_NVAL 3
+/** IO resource type: memory address space */
+#define IORESOURCE_MEM 0x00000200
+
/**
* A structure describing a PCI resource.
*/
};
/** Maximum number of PCI resources. */
-#define PCI_MAX_RESOURCE 7
+#define PCI_MAX_RESOURCE 6
/**
* A structure describing an ID for a PCI driver. Each driver provides a
uint8_t function; /**< Device function. */
};
+struct rte_devargs;
+
+enum rte_pt_driver {
+ RTE_PT_UNKNOWN = 0,
+ RTE_PT_IGB_UIO = 1,
+ RTE_PT_VFIO = 2,
+ RTE_PT_UIO_GENERIC = 3,
+};
+
/**
* A structure describing a PCI device.
*/
const struct rte_pci_driver *driver; /**< Associated driver */
uint16_t max_vfs; /**< sriov enable if not zero */
int numa_node; /**< NUMA node connection */
- unsigned int blacklisted:1; /**< Device is blacklisted */
+ struct rte_devargs *devargs; /**< Device user arguments */
+ enum rte_pt_driver pt_driver; /**< Driver of passthrough */
};
/** Any PCI device identifier (vendor, device, ...) */
*/
typedef int (pci_devinit_t)(struct rte_pci_driver *, struct rte_pci_device *);
+/**
+ * Uninitialisation function for the driver called during hotplugging.
+ */
+typedef int (pci_devuninit_t)(struct rte_pci_device *);
+
/**
* A structure describing a PCI driver.
*/
TAILQ_ENTRY(rte_pci_driver) next; /**< Next in list. */
const char *name; /**< Driver name. */
pci_devinit_t *devinit; /**< Device init. function. */
+ pci_devuninit_t *devuninit; /**< Device uninit function. */
struct rte_pci_id *id_table; /**< ID table, NULL terminated. */
uint32_t drv_flags; /**< Flags contolling handling of device. */
};
-#ifdef RTE_EAL_UNBIND_PORTS
-/** Device needs igb_uio kernel module */
-#define RTE_PCI_DRV_NEED_IGB_UIO 0x0001
-#endif
-/** Device driver must be registered several times until failure */
-#define RTE_PCI_DRV_MULTIPLE 0x0002
+/** Device needs PCI BAR mapping (done with either IGB_UIO or VFIO) */
+#define RTE_PCI_DRV_NEED_MAPPING 0x0001
+/** Device driver must be registered several times until failure - deprecated */
+#pragma GCC poison RTE_PCI_DRV_MULTIPLE
+/** Device needs to be unbound even if no module is provided */
+#define RTE_PCI_DRV_FORCE_UNBIND 0x0004
+/** Device driver supports link state interrupt */
+#define RTE_PCI_DRV_INTR_LSC 0x0008
+/** Device driver supports detaching capability */
+#define RTE_PCI_DRV_DETACHABLE 0x0010
/**< Internal use only - Macro used by pci addr parsing functions **/
#define GET_PCIADDR_FIELD(in, fd, lim, dlm) \
}
#undef GET_PCIADDR_FIELD
+/* Compare two PCI device addresses. */
+/**
+ * Utility function to compare two PCI device addresses.
+ *
+ * @param addr
+ * The PCI Bus-Device-Function address to compare
+ * @param addr2
+ * The PCI Bus-Device-Function address to compare
+ * @return
+ * 0 on equal PCI address.
+ * Positive on addr is greater than addr2.
+ * Negative on addr is less than addr2, or error.
+ */
+static inline int
+rte_eal_compare_pci_addr(struct rte_pci_addr *addr, struct rte_pci_addr *addr2)
+{
+ uint64_t dev_addr, dev_addr2;
+
+ if ((addr == NULL) || (addr2 == NULL))
+ return -1;
+
+ dev_addr = (addr->domain << 24) | (addr->bus << 16) |
+ (addr->devid << 8) | addr->function;
+ dev_addr2 = (addr2->domain << 24) | (addr2->bus << 16) |
+ (addr2->devid << 8) | addr2->function;
+
+ if (dev_addr > dev_addr2)
+ return 1;
+ else if (dev_addr < dev_addr2)
+ return -1;
+ else
+ return 0;
+}
+
/**
* Probe the PCI bus for registered drivers.
*
*/
int rte_eal_pci_probe(void);
+#ifdef RTE_LIBRTE_EAL_HOTPLUG
+/**
+ * Probe the single PCI device.
+ *
+ * Scan the content of the PCI bus, and find the pci device specified by pci
+ * address, then call the probe() function for registered driver that has a
+ * matching entry in its id_table for discovered device.
+ *
+ * @param addr
+ * The PCI Bus-Device-Function address to probe.
+ * @return
+ * - 0 on success.
+ * - Negative on error.
+ */
+int rte_eal_pci_probe_one(struct rte_pci_addr *addr);
+
+/**
+ * Close the single PCI device.
+ *
+ * Scan the content of the PCI bus, and find the pci device specified by pci
+ * address, then call the close() function for registered driver that has a
+ * matching entry in its id_table for discovered device.
+ *
+ * @param addr
+ * The PCI Bus-Device-Function address to close.
+ * @return
+ * - 0 on success.
+ * - Negative on error.
+ */
+int rte_eal_pci_close_one(struct rte_pci_addr *addr);
+#endif /* RTE_LIBRTE_EAL_HOTPLUG */
+
/**
* Dump the content of the PCI bus.
+ *
+ * @param f
+ * A pointer to a file for output
*/
-void rte_eal_pci_dump(void);
+void rte_eal_pci_dump(FILE *f);
/**
* Register a PCI driver.
*/
void rte_eal_pci_unregister(struct rte_pci_driver *driver);
-/**
- * Register a list of PCI locations that will be blacklisted (not used by DPDK).
- *
- * @param blacklist
- * List of PCI device addresses that will not be used by DPDK.
- * @param size
- * Number of items in the list.
- */
-void rte_eal_pci_set_blacklist(struct rte_pci_addr *blacklist, unsigned size);
-
#ifdef __cplusplus
}
#endif
git.droids-corp.org / dpdk.git / blobdiff