Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 201 insertions, 0 deletions

diff --git a/src/spdk/lib/vmd/vmd.h b/src/spdk/lib/vmd/vmd.h
new file mode 100644
index 000000000..46490a6f7
--- /dev/null
+++ b/src/spdk/lib/vmd/vmd.h
@@ -0,0 +1,201 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) 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 copyright
+ *       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.
+ */
+
+#ifndef VMD_H
+#define VMD_H
+
+#include "spdk/stdinc.h"
+#include "spdk/vmd.h"
+#include "spdk/env.h"
+#include "spdk/util.h"
+#include "spdk_internal/log.h"
+#include "vmd_spec.h"
+
+struct vmd_hot_plug;
+struct vmd_adapter;
+struct vmd_pci_device;
+
+struct pci_bars {
+	uint64_t vaddr;
+	uint64_t start;
+	uint32_t size;
+};
+
+struct vmd_pci_bus {
+	struct vmd_adapter *vmd;
+	struct vmd_pci_bus *parent;	/* parent bus that this bus is attached to(primary bus. */
+	struct vmd_pci_device *self;		/* Pci device that describes this bus(bar, bus numbers, etc */
+
+	uint32_t  domain           : 8;
+	uint32_t  hotplug_buses    : 10;
+	uint32_t  is_added         : 1;
+	uint32_t  hp_event_queued  : 1;
+	uint32_t  rsv              : 12;
+
+	uint32_t  bus_number      : 8;
+	uint32_t  primary_bus     : 8;
+	uint32_t  secondary_bus   : 8;
+	uint32_t  subordinate_bus : 8;
+
+	TAILQ_HEAD(, vmd_pci_device) dev_list;	/* list of pci end device attached to this bus */
+	TAILQ_ENTRY(vmd_pci_bus) tailq;		/* link for all buses found during scan */
+};
+
+/*
+ * memory element for base address assignment and reuse
+ */
+struct pci_mem_mgr {
+	uint32_t			size : 30;        /* size of memory element */
+	uint32_t			in_use : 1;
+	uint32_t			rsv : 1;
+	uint64_t			addr;
+	TAILQ_ENTRY(pci_mem_mgr)	tailq;
+};
+
+struct vmd_hot_plug {
+	uint32_t count  : 12;
+	uint32_t reserved_bus_count : 4;
+	uint32_t max_hotplug_bus_number : 8;
+	uint32_t next_bus_number : 8;
+	struct pci_bars bar;
+	union express_slot_status_register slot_status;
+	struct pci_mem_mgr mem[ADDR_ELEM_COUNT];
+	uint8_t bus_numbers[RESERVED_HOTPLUG_BUSES];
+	struct vmd_pci_bus *bus;
+	TAILQ_HEAD(, pci_mem_mgr) free_mem_queue;
+	TAILQ_HEAD(, pci_mem_mgr) alloc_mem_queue;
+	TAILQ_HEAD(, pci_mem_mgr) unused_mem_queue;
+};
+
+struct vmd_pci_device {
+	struct spdk_pci_device pci;
+	struct pci_bars bar[6];
+
+	struct vmd_pci_device *parent_bridge;
+	struct vmd_pci_bus *bus, *parent;
+	struct vmd_pci_bus *bus_object;  /* bus tracks pci bus associated with this dev if type 1 dev. */
+	struct vmd_pci_bus *subordinate;
+	volatile struct pci_header *header;
+	volatile struct pci_express_cap *pcie_cap;
+	volatile struct pci_msix_capability *msix_cap;
+	volatile struct pci_msi_cap *msi_cap;
+	volatile struct serial_number_capability *sn_cap;
+	volatile struct pci_msix_table_entry *msix_table;
+
+	TAILQ_ENTRY(vmd_pci_device) tailq;
+
+	uint32_t  class;
+	uint16_t  vid;
+	uint16_t  did;
+	uint16_t  pcie_flags, msix_table_size;
+	uint32_t  devfn;
+	bool      hotplug_capable;
+
+	uint32_t  header_type    : 1;
+	uint32_t  multifunction  : 1;
+	uint32_t  hotplug_bridge : 1;
+	uint32_t  is_added       : 1;
+	uint32_t  is_hooked      : 1;
+	uint32_t  rsv1           : 12;
+	uint32_t  target         : 16;
+
+	struct vmd_hot_plug hp;
+	/* Cached version of the slot_control register */
+	union express_slot_control_register cached_slot_control;
+};
+
+/*
+ * The VMD adapter
+ */
+struct vmd_adapter {
+	struct spdk_pci_device *pci;
+	uint32_t domain;
+	/* physical and virtual VMD bars */
+	uint64_t cfgbar, cfgbar_size;
+	uint64_t membar, membar_size;
+	uint64_t msixbar, msixbar_size;
+	volatile uint8_t *cfg_vaddr;
+	volatile uint8_t *mem_vaddr;
+	volatile uint8_t *msix_vaddr;
+	volatile struct pci_msix_table_entry *msix_table;
+	uint32_t bar_sizes[6];
+
+	uint64_t physical_addr;
+	uint32_t current_addr_size;
+
+	uint32_t next_bus_number : 10;
+	uint32_t max_pci_bus : 10;
+	uint32_t is_hotplug_scan : 1;
+	uint32_t is_ready : 1;
+	uint32_t processing_hp : 1;
+	uint32_t max_payload_size: 3;
+	uint32_t root_port_updated : 1;
+	uint32_t scan_completed : 1;
+	uint32_t rsv : 4;
+
+	/* end devices attached to vmd adapters */
+	struct vmd_pci_device *target[MAX_VMD_TARGET];
+	uint32_t  dev_count  : 16;
+	uint32_t  nvme_count : 8;
+	uint32_t  vmd_index  : 8;
+
+	struct vmd_pci_bus vmd_bus;
+
+	TAILQ_HEAD(, vmd_pci_bus) bus_list;
+
+	struct event_fifo *hp_queue;
+};
+
+/* TODO: Temporary stubs for Hot Plug interface */
+static inline struct vmd_pci_bus *
+vmd_is_dev_in_hotplug_path(struct vmd_pci_device *dev)
+{
+	return NULL;
+}
+
+static inline void
+vmd_hp_enable_hotplug(struct vmd_hot_plug *hp)
+{
+
+}
+
+static inline uint8_t
+vmd_hp_get_next_bus_number(struct vmd_hot_plug *hp)
+{
+	assert(false);
+	return 0;
+}
+
+struct vmd_pci_device *vmd_find_device(const struct spdk_pci_addr *addr);
+
+#endif /* VMD_H */