Provider methods to support the Linux RDMA verbs.
Signed-off-by: Steve Wise [EMAIL PROTECTED]
---
drivers/infiniband/hw/cxgb3/iwch_provider.c | 1170 +++
drivers/infiniband/hw/cxgb3/iwch_provider.h | 362
drivers/infiniband/hw/cxgb3/iwch_user.h | 68 ++
3 files changed, 1600 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c
b/drivers/infiniband/hw/cxgb3/iwch_provider.c
new file mode 100644
index 000..4bef081
--- /dev/null
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -0,0 +1,1170 @@
+/*
+ * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
+ * Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer in the documentation and/or other materials
+ *provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include linux/module.h
+#include linux/moduleparam.h
+#include linux/device.h
+#include linux/netdevice.h
+#include linux/etherdevice.h
+#include linux/delay.h
+#include linux/errno.h
+#include linux/list.h
+#include linux/spinlock.h
+#include linux/ethtool.h
+
+#include asm/io.h
+#include asm/irq.h
+#include asm/byteorder.h
+
+#include rdma/iw_cm.h
+#include rdma/ib_verbs.h
+#include rdma/ib_smi.h
+#include rdma/ib_user_verbs.h
+
+#include cxio_hal.h
+#include iwch.h
+#include iwch_provider.h
+#include iwch_cm.h
+#include iwch_user.h
+
+static int iwch_modify_port(struct ib_device *ibdev,
+ u8 port, int port_modify_mask,
+ struct ib_port_modify *props)
+{
+ return -ENOSYS;
+}
+
+static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
+ struct ib_ah_attr *ah_attr)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static int iwch_ah_destroy(struct ib_ah *ah)
+{
+ return -ENOSYS;
+}
+
+static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16
lid)
+{
+ return -ENOSYS;
+}
+
+static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16
lid)
+{
+ return -ENOSYS;
+}
+
+static int iwch_process_mad(struct ib_device *ibdev,
+ int mad_flags,
+ u8 port_num,
+ struct ib_wc *in_wc,
+ struct ib_grh *in_grh,
+ struct ib_mad *in_mad, struct ib_mad *out_mad)
+{
+ return -ENOSYS;
+}
+
+static int iwch_dealloc_ucontext(struct ib_ucontext *context)
+{
+ struct iwch_dev *rhp = to_iwch_dev(context-device);
+ struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
+ PDBG(%s context %p\n, __FUNCTION__, context);
+ cxio_release_ucontext(rhp-rdev, ucontext-uctx);
+ kfree(ucontext);
+ return 0;
+}
+
+static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
+ struct ib_udata *udata)
+{
+ struct iwch_ucontext *context;
+ struct iwch_dev *rhp = to_iwch_dev(ibdev);
+
+ PDBG(%s ibdev %p\n, __FUNCTION__, ibdev);
+ context = kmalloc(sizeof(*context), GFP_KERNEL);
+ if (!context)
+ return ERR_PTR(-ENOMEM);
+ cxio_init_ucontext(rhp-rdev, context-uctx);
+ INIT_LIST_HEAD(context-mmaps);
+ return context-ibucontext;
+}
+
+static int iwch_destroy_cq(struct ib_cq *ib_cq)
+{
+ struct iwch_cq *chp;
+
+ PDBG(%s ib_cq %p\n, __FUNCTION__, ib_cq);
+ chp = to_iwch_cq(ib_cq);
+
+ remove_handle(chp-rhp, chp-rhp-cqidr, chp-cq.cqid);
+ atomic_dec(chp-refcnt);
+ wait_event(chp-wait, !atomic_read(chp-refcnt));
+
+ cxio_destroy_cq(chp-rhp-rdev, chp-cq);
+ kfree(chp);
+ return 0;
+}
+
+static struct ib_cq
