New upstream version 8.1.0

client_module/source/common/net/sock/ibv/IBVBuffer.h

@@ -0,0 +1,49 @@
+#ifndef IBVBuffer_h_aMQFNfzrjbEHDOcv216fi
+#define IBVBuffer_h_aMQFNfzrjbEHDOcv216fi
+
+#include <common/Common.h>
+#ifdef BEEGFS_RDMA
+
+#include <rdma/ib_verbs.h>
+#include <rdma/rdma_cm.h>
+#include <rdma/ib_cm.h>
+
+#include <os/iov_iter.h>
+
+
+struct IBVBuffer;
+typedef struct IBVBuffer IBVBuffer;
+
+struct IBVCommContext;
+struct IBVSocket;
+
+
+extern bool IBVBuffer_init(IBVBuffer* buffer, struct IBVCommContext* ctx, size_t bufLen,
+   size_t fragmentLen, enum dma_data_direction dma_dir);
+/**
+ * Prepare the instance to use its internal ib_mr. This is only needed for buffers used
+ * with RDMA READ/WRITE and when not using a global rkey. This may be called before
+ * the connection is established. Once the connection has been established,
+ * the registration must be completed via a call to IBVSocket_registerMr().
+ */
+extern bool IBVBuffer_initRegistration(IBVBuffer* buffer, struct IBVCommContext* ctx);
+extern void IBVBuffer_free(IBVBuffer* buffer, struct IBVCommContext* ctx);
+extern ssize_t IBVBuffer_fill(IBVBuffer* buffer, struct iov_iter* iter);
+
+
+struct IBVBuffer
+{
+   char** buffers;
+   struct ib_sge* lists;
+   struct ib_mr* mr;
+
+   size_t bufferSize;
+   unsigned bufferCount;
+
+   unsigned listLength;
+   enum dma_data_direction dma_dir;
+};
+
+#endif
+
+#endif