New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 154 insertions, 0 deletions

diff --git a/drivers/net/ifc/base/ifcvf.h b/drivers/net/ifc/base/ifcvf.h
new file mode 100644
index 00000000..badacb61
--- /dev/null
+++ b/drivers/net/ifc/base/ifcvf.h
@@ -0,0 +1,154 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef _IFCVF_H_
+#define _IFCVF_H_
+
+#include "ifcvf_osdep.h"
+
+#define IFCVF_VENDOR_ID		0x1AF4
+#define IFCVF_DEVICE_ID		0x1041
+#define IFCVF_SUBSYS_VENDOR_ID	0x8086
+#define IFCVF_SUBSYS_DEVICE_ID	0x001A
+
+#define IFCVF_MAX_QUEUES		1
+#define VIRTIO_F_IOMMU_PLATFORM		33
+
+/* Common configuration */
+#define IFCVF_PCI_CAP_COMMON_CFG	1
+/* Notifications */
+#define IFCVF_PCI_CAP_NOTIFY_CFG	2
+/* ISR Status */
+#define IFCVF_PCI_CAP_ISR_CFG		3
+/* Device specific configuration */
+#define IFCVF_PCI_CAP_DEVICE_CFG	4
+/* PCI configuration access */
+#define IFCVF_PCI_CAP_PCI_CFG		5
+
+#define IFCVF_CONFIG_STATUS_RESET     0x00
+#define IFCVF_CONFIG_STATUS_ACK       0x01
+#define IFCVF_CONFIG_STATUS_DRIVER    0x02
+#define IFCVF_CONFIG_STATUS_DRIVER_OK 0x04
+#define IFCVF_CONFIG_STATUS_FEATURES_OK 0x08
+#define IFCVF_CONFIG_STATUS_FAILED    0x80
+
+#define IFCVF_MSI_NO_VECTOR	0xffff
+#define IFCVF_PCI_MAX_RESOURCE	6
+
+#define IFCVF_LM_CFG_SIZE		0x40
+#define IFCVF_LM_RING_STATE_OFFSET	0x20
+
+#define IFCVF_LM_LOGGING_CTRL		0x0
+
+#define IFCVF_LM_BASE_ADDR_LOW		0x10
+#define IFCVF_LM_BASE_ADDR_HIGH		0x14
+#define IFCVF_LM_END_ADDR_LOW		0x18
+#define IFCVF_LM_END_ADDR_HIGH		0x1c
+
+#define IFCVF_LM_DISABLE		0x0
+#define IFCVF_LM_ENABLE_VF		0x1
+#define IFCVF_LM_ENABLE_PF		0x3
+
+#define IFCVF_32_BIT_MASK		0xffffffff
+
+
+struct ifcvf_pci_cap {
+	u8 cap_vndr;            /* Generic PCI field: PCI_CAP_ID_VNDR */
+	u8 cap_next;            /* Generic PCI field: next ptr. */
+	u8 cap_len;             /* Generic PCI field: capability length */
+	u8 cfg_type;            /* Identifies the structure. */
+	u8 bar;                 /* Where to find it. */
+	u8 padding[3];          /* Pad to full dword. */
+	u32 offset;             /* Offset within bar. */
+	u32 length;             /* Length of the structure, in bytes. */
+};
+
+struct ifcvf_pci_notify_cap {
+	struct ifcvf_pci_cap cap;
+	u32 notify_off_multiplier;  /* Multiplier for queue_notify_off. */
+};
+
+struct ifcvf_pci_common_cfg {
+	/* About the whole device. */
+	u32 device_feature_select;
+	u32 device_feature;
+	u32 guest_feature_select;
+	u32 guest_feature;
+	u16 msix_config;
+	u16 num_queues;
+	u8 device_status;
+	u8 config_generation;
+
+	/* About a specific virtqueue. */
+	u16 queue_select;
+	u16 queue_size;
+	u16 queue_msix_vector;
+	u16 queue_enable;
+	u16 queue_notify_off;
+	u32 queue_desc_lo;
+	u32 queue_desc_hi;
+	u32 queue_avail_lo;
+	u32 queue_avail_hi;
+	u32 queue_used_lo;
+	u32 queue_used_hi;
+};
+
+struct ifcvf_net_config {
+	u8    mac[6];
+	u16   status;
+	u16   max_virtqueue_pairs;
+} __attribute__((packed));
+
+struct ifcvf_pci_mem_resource {
+	u64      phys_addr; /**< Physical address, 0 if not resource. */
+	u64      len;       /**< Length of the resource. */
+	u8       *addr;     /**< Virtual address, NULL when not mapped. */
+};
+
+struct vring_info {
+	u64 desc;
+	u64 avail;
+	u64 used;
+	u16 size;
+	u16 last_avail_idx;
+	u16 last_used_idx;
+};
+
+struct ifcvf_hw {
+	u64    req_features;
+	u8     notify_region;
+	u32    notify_off_multiplier;
+	struct ifcvf_pci_common_cfg *common_cfg;
+	struct ifcvf_net_device_config *dev_cfg;
+	u8     *isr;
+	u16    *notify_base;
+	u16    *notify_addr[IFCVF_MAX_QUEUES * 2];
+	u8     *lm_cfg;
+	struct vring_info vring[IFCVF_MAX_QUEUES * 2];
+	u8 nr_vring;
+	struct ifcvf_pci_mem_resource mem_resource[IFCVF_PCI_MAX_RESOURCE];
+};
+
+int
+ifcvf_init_hw(struct ifcvf_hw *hw, PCI_DEV *dev);
+
+u64
+ifcvf_get_features(struct ifcvf_hw *hw);
+
+int
+ifcvf_start_hw(struct ifcvf_hw *hw);
+
+void
+ifcvf_stop_hw(struct ifcvf_hw *hw);
+
+void
+ifcvf_notify_queue(struct ifcvf_hw *hw, u16 qid);
+
+u8
+ifcvf_get_notify_region(struct ifcvf_hw *hw);
+
+u64
+ifcvf_get_queue_notify_off(struct ifcvf_hw *hw, int qid);
+
+#endif /* _IFCVF_H_ */