X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Finclude%2Fhw%2Fpci%2Fpcie.h;fp=qemu%2Finclude%2Fhw%2Fpci%2Fpcie.h;h=b48a7a2c5a7fccd1a9a7e0ed23d04cd37df7d59a;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/include/hw/pci/pcie.h b/qemu/include/hw/pci/pcie.h
new file mode 100644
index 000000000..b48a7a2c5
--- /dev/null
+++ b/qemu/include/hw/pci/pcie.h
@@ -0,0 +1,133 @@
+/*
+ * pcie.h
+ *
+ * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
+ *                    VA Linux Systems Japan K.K.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QEMU_PCIE_H
+#define QEMU_PCIE_H
+
+#include "hw/hw.h"
+#include "hw/pci/pci_regs.h"
+#include "hw/pci/pcie_regs.h"
+#include "hw/pci/pcie_aer.h"
+#include "hw/hotplug.h"
+
+typedef enum {
+    /* for attention and power indicator */
+    PCI_EXP_HP_IND_RESERVED     = PCI_EXP_SLTCTL_IND_RESERVED,
+    PCI_EXP_HP_IND_ON           = PCI_EXP_SLTCTL_IND_ON,
+    PCI_EXP_HP_IND_BLINK        = PCI_EXP_SLTCTL_IND_BLINK,
+    PCI_EXP_HP_IND_OFF          = PCI_EXP_SLTCTL_IND_OFF,
+} PCIExpressIndicator;
+
+typedef enum {
+    /* these bits must match the bits in Slot Control/Status registers.
+     * PCI_EXP_HP_EV_xxx = PCI_EXP_SLTCTL_xxxE = PCI_EXP_SLTSTA_xxx
+     *
+     * Not all the bits of slot control register match with the ones of
+     * slot status. Not some bits of slot status register is used to
+     * show status, not to report event occurrence.
+     * So such bits must be masked out when checking the software
+     * notification condition.
+     */
+    PCI_EXP_HP_EV_ABP           = PCI_EXP_SLTCTL_ABPE,
+                                        /* attention button pressed */
+    PCI_EXP_HP_EV_PDC           = PCI_EXP_SLTCTL_PDCE,
+                                        /* presence detect changed */
+    PCI_EXP_HP_EV_CCI           = PCI_EXP_SLTCTL_CCIE,
+                                        /* command completed */
+
+    PCI_EXP_HP_EV_SUPPORTED     = PCI_EXP_HP_EV_ABP |
+                                  PCI_EXP_HP_EV_PDC |
+                                  PCI_EXP_HP_EV_CCI,
+                                                /* supported event mask  */
+
+    /* events not listed aren't supported */
+} PCIExpressHotPlugEvent;
+
+struct PCIExpressDevice {
+    /* Offset of express capability in config space */
+    uint8_t exp_cap;
+
+    /* SLOT */
+    bool hpev_notified; /* Logical AND of conditions for hot plug event.
+                         Following 6.7.3.4:
+                         Software Notification of Hot-Plug Events, an interrupt
+                         is sent whenever the logical and of these conditions
+                         transitions from false to true. */
+
+    /* AER */
+    uint16_t aer_cap;
+    PCIEAERLog aer_log;
+};
+
+#define COMPAT_PROP_PCP "power_controller_present"
+
+/* PCI express capability helper functions */
+int pcie_cap_init(PCIDevice *dev, uint8_t offset, uint8_t type, uint8_t port);
+int pcie_endpoint_cap_init(PCIDevice *dev, uint8_t offset);
+void pcie_cap_exit(PCIDevice *dev);
+uint8_t pcie_cap_get_type(const PCIDevice *dev);
+void pcie_cap_flags_set_vector(PCIDevice *dev, uint8_t vector);
+uint8_t pcie_cap_flags_get_vector(PCIDevice *dev);
+
+void pcie_cap_deverr_init(PCIDevice *dev);
+void pcie_cap_deverr_reset(PCIDevice *dev);
+
+void pcie_cap_slot_init(PCIDevice *dev, uint16_t slot);
+void pcie_cap_slot_reset(PCIDevice *dev);
+void pcie_cap_slot_write_config(PCIDevice *dev,
+                                uint32_t addr, uint32_t val, int len);
+int pcie_cap_slot_post_load(void *opaque, int version_id);
+void pcie_cap_slot_push_attention_button(PCIDevice *dev);
+
+void pcie_cap_root_init(PCIDevice *dev);
+void pcie_cap_root_reset(PCIDevice *dev);
+
+void pcie_cap_flr_init(PCIDevice *dev);
+void pcie_cap_flr_write_config(PCIDevice *dev,
+                           uint32_t addr, uint32_t val, int len);
+
+/* ARI forwarding capability and control */
+void pcie_cap_arifwd_init(PCIDevice *dev);
+void pcie_cap_arifwd_reset(PCIDevice *dev);
+bool pcie_cap_is_arifwd_enabled(const PCIDevice *dev);
+
+/* PCI express extended capability helper functions */
+uint16_t pcie_find_capability(PCIDevice *dev, uint16_t cap_id);
+void pcie_add_capability(PCIDevice *dev,
+                         uint16_t cap_id, uint8_t cap_ver,
+                         uint16_t offset, uint16_t size);
+
+void pcie_ari_init(PCIDevice *dev, uint16_t offset, uint16_t nextfn);
+
+extern const VMStateDescription vmstate_pcie_device;
+
+#define VMSTATE_PCIE_DEVICE(_field, _state) {                        \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(PCIDevice),                                 \
+    .vmsd       = &vmstate_pcie_device,                              \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, PCIDevice),   \
+}
+
+void pcie_cap_slot_hotplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
+                              Error **errp);
+void pcie_cap_slot_hot_unplug_request_cb(HotplugHandler *hotplug_dev,
+                                         DeviceState *dev, Error **errp);
+#endif /* QEMU_PCIE_H */