Merge remote-tracking branch 'remotes/marcel/tags/rdma-pull-request' into staging

PVRDMA implementation

# gpg: Signature made Mon 19 Feb 2018 11:08:49 GMT
# gpg:                using RSA key 36D4C0F0CF2FE46D
# gpg: Good signature from "Marcel Apfelbaum <marcel@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: B1C6 3A57 F92E 08F2 640F  31F5 36D4 C0F0 CF2F E46D

* remotes/marcel/tags/rdma-pull-request:
  MAINTAINERS: add entry for hw/rdma
  hw/rdma: Implementation of PVRDMA device
  hw/rdma: PVRDMA commands and data-path ops
  hw/rdma: Implementation of generic rdma device layers
  hw/rdma: Definitions for rdma device and rdma resource manager
  hw/rdma: Add wrappers and macros
  include/standard-headers: add pvrdma related headers
  scripts/update-linux-headers: import pvrdma headers
  docs: add pvrdma device documentation.
  mem: add share parameter to memory-backend-ram

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 98 insertions, 0 deletions

diff --git a/hw/rdma/rdma_backend.h b/hw/rdma/rdma_backend.h
new file mode 100644
index 0000000000..68f2b05ca7
--- /dev/null
+++ b/hw/rdma/rdma_backend.h
@@ -0,0 +1,98 @@
+/*
+ *  RDMA device: Definitions of Backend Device functions
+ *
+ * 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 RDMA_BACKEND_H
+#define RDMA_BACKEND_H
+
+#include <qapi/error.h>
+#include "rdma_rm_defs.h"
+#include "rdma_backend_defs.h"
+
+/* Add definition for QP0 and QP1 as there is no userspace enums for them */
+enum ibv_special_qp_type {
+    IBV_QPT_SMI = 0,
+    IBV_QPT_GSI = 1,
+};
+
+static inline union ibv_gid *rdma_backend_gid(RdmaBackendDev *dev)
+{
+    return &dev->gid;
+}
+
+static inline uint32_t rdma_backend_qpn(const RdmaBackendQP *qp)
+{
+    return qp->ibqp ? qp->ibqp->qp_num : 0;
+}
+
+static inline uint32_t rdma_backend_mr_lkey(const RdmaBackendMR *mr)
+{
+    return mr->ibmr ? mr->ibmr->lkey : 0;
+}
+
+static inline uint32_t rdma_backend_mr_rkey(const RdmaBackendMR *mr)
+{
+    return mr->ibmr ? mr->ibmr->rkey : 0;
+}
+
+int rdma_backend_init(RdmaBackendDev *backend_dev,
+                      RdmaDeviceResources *rdma_dev_res,
+                      const char *backend_device_name, uint8_t port_num,
+                      uint8_t backend_gid_idx, struct ibv_device_attr *dev_attr,
+                      Error **errp);
+void rdma_backend_fini(RdmaBackendDev *backend_dev);
+void rdma_backend_register_comp_handler(void (*handler)(int status,
+                                        unsigned int vendor_err, void *ctx));
+void rdma_backend_unregister_comp_handler(void);
+
+int rdma_backend_query_port(RdmaBackendDev *backend_dev,
+                            struct ibv_port_attr *port_attr);
+int rdma_backend_create_pd(RdmaBackendDev *backend_dev, RdmaBackendPD *pd);
+void rdma_backend_destroy_pd(RdmaBackendPD *pd);
+
+int rdma_backend_create_mr(RdmaBackendMR *mr, RdmaBackendPD *pd, uint64_t addr,
+                           size_t length, int access);
+void rdma_backend_destroy_mr(RdmaBackendMR *mr);
+
+int rdma_backend_create_cq(RdmaBackendDev *backend_dev, RdmaBackendCQ *cq,
+                           int cqe);
+void rdma_backend_destroy_cq(RdmaBackendCQ *cq);
+void rdma_backend_poll_cq(RdmaDeviceResources *rdma_dev_res, RdmaBackendCQ *cq);
+
+int rdma_backend_create_qp(RdmaBackendQP *qp, uint8_t qp_type,
+                           RdmaBackendPD *pd, RdmaBackendCQ *scq,
+                           RdmaBackendCQ *rcq, uint32_t max_send_wr,
+                           uint32_t max_recv_wr, uint32_t max_send_sge,
+                           uint32_t max_recv_sge);
+int rdma_backend_qp_state_init(RdmaBackendDev *backend_dev, RdmaBackendQP *qp,
+                               uint8_t qp_type, uint32_t qkey);
+int rdma_backend_qp_state_rtr(RdmaBackendDev *backend_dev, RdmaBackendQP *qp,
+                              uint8_t qp_type, union ibv_gid *dgid,
+                              uint32_t dqpn, uint32_t rq_psn, uint32_t qkey,
+                              bool use_qkey);
+int rdma_backend_qp_state_rts(RdmaBackendQP *qp, uint8_t qp_type,
+                              uint32_t sq_psn, uint32_t qkey, bool use_qkey);
+void rdma_backend_destroy_qp(RdmaBackendQP *qp);
+
+void rdma_backend_post_send(RdmaBackendDev *backend_dev,
+                            RdmaBackendQP *qp, uint8_t qp_type,
+                            struct ibv_sge *sge, uint32_t num_sge,
+                            union ibv_gid *dgid, uint32_t dqpn, uint32_t dqkey,
+                            void *ctx);
+void rdma_backend_post_recv(RdmaBackendDev *backend_dev,
+                            RdmaDeviceResources *rdma_dev_res,
+                            RdmaBackendQP *qp, uint8_t qp_type,
+                            struct ibv_sge *sge, uint32_t num_sge, void *ctx);
+
+#endif