Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / pci / pcie / aer / aerdrv.h

diff --git a/kernel/drivers/pci/pcie/aer/aerdrv.h b/kernel/drivers/pci/pcie/aer/aerdrv.h
new file mode 100644 (file)
index 0000000..84420b7
--- /dev/null
+++ b/kernel/drivers/pci/pcie/aer/aerdrv.h
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2006 Intel Corp.
+ *     Tom Long Nguyen (tom.l.nguyen@intel.com)
+ *     Zhang Yanmin (yanmin.zhang@intel.com)
+ *
+ */
+
+#ifndef _AERDRV_H_
+#define _AERDRV_H_
+
+#include <linux/workqueue.h>
+#include <linux/pcieport_if.h>
+#include <linux/aer.h>
+#include <linux/interrupt.h>
+
+#define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE|   \
+                                       PCI_EXP_RTCTL_SENFEE|   \
+                                       PCI_EXP_RTCTL_SEFEE)
+#define ROOT_PORT_INTR_ON_MESG_MASK    (PCI_ERR_ROOT_CMD_COR_EN|       \
+                                       PCI_ERR_ROOT_CMD_NONFATAL_EN|   \
+                                       PCI_ERR_ROOT_CMD_FATAL_EN)
+#define ERR_COR_ID(d)                  (d & 0xffff)
+#define ERR_UNCOR_ID(d)                        (d >> 16)
+
+#define AER_ERROR_SOURCES_MAX          100
+
+#define AER_LOG_TLP_MASKS              (PCI_ERR_UNC_POISON_TLP|        \
+                                       PCI_ERR_UNC_ECRC|               \
+                                       PCI_ERR_UNC_UNSUP|              \
+                                       PCI_ERR_UNC_COMP_ABORT|         \
+                                       PCI_ERR_UNC_UNX_COMP|           \
+                                       PCI_ERR_UNC_MALF_TLP)
+
+#define AER_MAX_MULTI_ERR_DEVICES      5       /* Not likely to have more */
+struct aer_err_info {
+       struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES];
+       int error_dev_num;
+
+       unsigned int id:16;
+
+       unsigned int severity:2;        /* 0:NONFATAL | 1:FATAL | 2:COR */
+       unsigned int __pad1:5;
+       unsigned int multi_error_valid:1;
+
+       unsigned int first_error:5;
+       unsigned int __pad2:2;
+       unsigned int tlp_header_valid:1;
+
+       unsigned int status;            /* COR/UNCOR Error Status */
+       unsigned int mask;              /* COR/UNCOR Error Mask */
+       struct aer_header_log_regs tlp; /* TLP Header */
+};
+
+struct aer_err_source {
+       unsigned int status;
+       unsigned int id;
+};
+
+struct aer_rpc {
+       struct pcie_device *rpd;        /* Root Port device */
+       struct work_struct dpc_handler;
+       struct aer_err_source e_sources[AER_ERROR_SOURCES_MAX];
+       unsigned short prod_idx;        /* Error Producer Index */
+       unsigned short cons_idx;        /* Error Consumer Index */
+       int isr;
+       spinlock_t e_lock;              /*
+                                        * Lock access to Error Status/ID Regs
+                                        * and error producer/consumer index
+                                        */
+       struct mutex rpc_mutex;         /*
+                                        * only one thread could do
+                                        * recovery on the same
+                                        * root port hierarchy
+                                        */
+       wait_queue_head_t wait_release;
+};
+
+struct aer_broadcast_data {
+       enum pci_channel_state state;
+       enum pci_ers_result result;
+};
+
+static inline pci_ers_result_t merge_result(enum pci_ers_result orig,
+               enum pci_ers_result new)
+{
+       if (new == PCI_ERS_RESULT_NO_AER_DRIVER)
+               return PCI_ERS_RESULT_NO_AER_DRIVER;
+
+       if (new == PCI_ERS_RESULT_NONE)
+               return orig;
+
+       switch (orig) {
+       case PCI_ERS_RESULT_CAN_RECOVER:
+       case PCI_ERS_RESULT_RECOVERED:
+               orig = new;
+               break;
+       case PCI_ERS_RESULT_DISCONNECT:
+               if (new == PCI_ERS_RESULT_NEED_RESET)
+                       orig = PCI_ERS_RESULT_NEED_RESET;
+               break;
+       default:
+               break;
+       }
+
+       return orig;
+}
+
+extern struct bus_type pcie_port_bus_type;
+int aer_init(struct pcie_device *dev);
+void aer_isr(struct work_struct *work);
+void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
+void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info);
+irqreturn_t aer_irq(int irq, void *context);
+
+#ifdef CONFIG_ACPI_APEI
+int pcie_aer_get_firmware_first(struct pci_dev *pci_dev);
+#else
+static inline int pcie_aer_get_firmware_first(struct pci_dev *pci_dev)
+{
+       if (pci_dev->__aer_firmware_first_valid)
+               return pci_dev->__aer_firmware_first;
+       return 0;
+}
+#endif
+
+static inline void pcie_aer_force_firmware_first(struct pci_dev *pci_dev,
+                                                int enable)
+{
+       pci_dev->__aer_firmware_first = !!enable;
+       pci_dev->__aer_firmware_first_valid = 1;
+}
+#endif /* _AERDRV_H_ */