aboutsummaryrefslogtreecommitdiff
path: root/hw/rdma/vmw/pvrdma.h
diff options
context:
space:
mode:
Diffstat (limited to 'hw/rdma/vmw/pvrdma.h')
-rw-r--r--hw/rdma/vmw/pvrdma.h122
1 files changed, 122 insertions, 0 deletions
diff --git a/hw/rdma/vmw/pvrdma.h b/hw/rdma/vmw/pvrdma.h
new file mode 100644
index 0000000000..b05f94a473
--- /dev/null
+++ b/hw/rdma/vmw/pvrdma.h
@@ -0,0 +1,122 @@
+/*
+ * QEMU VMWARE paravirtual RDMA device definitions
+ *
+ * Copyright (C) 2018 Oracle
+ * Copyright (C) 2018 Red Hat Inc
+ *
+ * Authors:
+ * Yuval Shaia <yuval.shaia@oracle.com>
+ * Marcel Apfelbaum <marcel@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef PVRDMA_PVRDMA_H
+#define PVRDMA_PVRDMA_H
+
+#include <hw/pci/pci.h>
+#include <hw/pci/msix.h>
+
+#include "../rdma_backend_defs.h"
+#include "../rdma_rm_defs.h"
+
+#include <standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h>
+#include <standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h>
+#include "pvrdma_dev_ring.h"
+
+/* BARs */
+#define RDMA_MSIX_BAR_IDX 0
+#define RDMA_REG_BAR_IDX 1
+#define RDMA_UAR_BAR_IDX 2
+#define RDMA_BAR0_MSIX_SIZE (16 * 1024)
+#define RDMA_BAR1_REGS_SIZE 256
+#define RDMA_BAR2_UAR_SIZE (0x1000 * MAX_UCS) /* each uc gets page */
+
+/* MSIX */
+#define RDMA_MAX_INTRS 3
+#define RDMA_MSIX_TABLE 0x0000
+#define RDMA_MSIX_PBA 0x2000
+
+/* Interrupts Vectors */
+#define INTR_VEC_CMD_RING 0
+#define INTR_VEC_CMD_ASYNC_EVENTS 1
+#define INTR_VEC_CMD_COMPLETION_Q 2
+
+/* HW attributes */
+#define PVRDMA_HW_NAME "pvrdma"
+#define PVRDMA_HW_VERSION 17
+#define PVRDMA_FW_VERSION 14
+
+typedef struct DSRInfo {
+ dma_addr_t dma;
+ struct pvrdma_device_shared_region *dsr;
+
+ union pvrdma_cmd_req *req;
+ union pvrdma_cmd_resp *rsp;
+
+ struct pvrdma_ring *async_ring_state;
+ PvrdmaRing async;
+
+ struct pvrdma_ring *cq_ring_state;
+ PvrdmaRing cq;
+} DSRInfo;
+
+typedef struct PVRDMADev {
+ PCIDevice parent_obj;
+ MemoryRegion msix;
+ MemoryRegion regs;
+ uint32_t regs_data[RDMA_BAR1_REGS_SIZE];
+ MemoryRegion uar;
+ uint32_t uar_data[RDMA_BAR2_UAR_SIZE];
+ DSRInfo dsr_info;
+ int interrupt_mask;
+ struct ibv_device_attr dev_attr;
+ uint64_t node_guid;
+ char *backend_device_name;
+ uint8_t backend_gid_idx;
+ uint8_t backend_port_num;
+ RdmaBackendDev backend_dev;
+ RdmaDeviceResources rdma_dev_res;
+} PVRDMADev;
+#define PVRDMA_DEV(dev) OBJECT_CHECK(PVRDMADev, (dev), PVRDMA_HW_NAME)
+
+static inline int get_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t *val)
+{
+ int idx = addr >> 2;
+
+ if (idx > RDMA_BAR1_REGS_SIZE) {
+ return -EINVAL;
+ }
+
+ *val = dev->regs_data[idx];
+
+ return 0;
+}
+
+static inline int set_reg_val(PVRDMADev *dev, hwaddr addr, uint32_t val)
+{
+ int idx = addr >> 2;
+
+ if (idx > RDMA_BAR1_REGS_SIZE) {
+ return -EINVAL;
+ }
+
+ dev->regs_data[idx] = val;
+
+ return 0;
+}
+
+static inline void post_interrupt(PVRDMADev *dev, unsigned vector)
+{
+ PCIDevice *pci_dev = PCI_DEVICE(dev);
+
+ if (likely(!dev->interrupt_mask)) {
+ msix_notify(pci_dev, vector);
+ }
+}
+
+int execute_command(PVRDMADev *dev);
+
+#endif