Code to discover all the T3 devices and register them
with the T3 RDMA Core and the Linux RDMA Core.
Signed-off-by: Steve Wise [EMAIL PROTECTED]
---
drivers/infiniband/hw/cxgb3/iwch.c | 189
drivers/infiniband/hw/cxgb3/iwch.h | 175 +
2 files changed, 364 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb3/iwch.c
b/drivers/infiniband/hw/cxgb3/iwch.c
new file mode 100644
index 000..acbe449
--- /dev/null
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -0,0 +1,189 @@
+/*
+ * 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 rdma/ib_verbs.h
+
+#include cxgb3_offload.h
+#include iwch_provider.h
+#include iwch_user.h
+#include iwch.h
+#include iwch_cm.h
+
+#define DRV_VERSION 1.1
+
+MODULE_AUTHOR(Boyd Faulkner, Steve Wise);
+MODULE_DESCRIPTION(Chelsio T3 RDMA Driver);
+MODULE_LICENSE(Dual BSD/GPL);
+MODULE_VERSION(DRV_VERSION);
+
+cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS];
+
+static void open_rnic_dev(struct t3cdev *);
+static void close_rnic_dev(struct t3cdev *);
+
+struct cxgb3_client t3c_client = {
+ .name = iw_cxgb3,
+ .add = open_rnic_dev,
+ .remove = close_rnic_dev,
+ .handlers = t3c_handlers,
+ .redirect = iwch_ep_redirect
+};
+
+static LIST_HEAD(dev_list);
+static DEFINE_MUTEX(dev_mutex);
+
+static void rnic_init(struct iwch_dev *rnicp)
+{
+ PDBG(%s iwch_dev %p\n, __FUNCTION__, rnicp);
+ idr_init(rnicp-cqidr);
+ idr_init(rnicp-qpidr);
+ idr_init(rnicp-mmidr);
+ spin_lock_init(rnicp-lock);
+
+ rnicp-attr.vendor_id = 0x168;
+ rnicp-attr.vendor_part_id = 7;
+ rnicp-attr.max_qps = T3_MAX_NUM_QP - 32;
+ rnicp-attr.max_wrs = (1UL 24) - 1;
+ rnicp-attr.max_sge_per_wr = T3_MAX_SGE;
+ rnicp-attr.max_sge_per_rdma_write_wr = T3_MAX_SGE;
+ rnicp-attr.max_cqs = T3_MAX_NUM_CQ - 1;
+ rnicp-attr.max_cqes_per_cq = (1UL 24) - 1;
+ rnicp-attr.max_mem_regs = cxio_num_stags(rnicp-rdev);
+ rnicp-attr.max_phys_buf_entries = T3_MAX_PBL_SIZE;
+ rnicp-attr.max_pds = T3_MAX_NUM_PD - 1;
+ rnicp-attr.mem_pgsizes_bitmask = 0x7FFF; /* 4KB-128MB */
+ rnicp-attr.can_resize_wq = 0;
+ rnicp-attr.max_rdma_reads_per_qp = 8;
+ rnicp-attr.max_rdma_read_resources =
+ rnicp-attr.max_rdma_reads_per_qp * rnicp-attr.max_qps;
+ rnicp-attr.max_rdma_read_qp_depth = 8; /* IRD */
+ rnicp-attr.max_rdma_read_depth =
+ rnicp-attr.max_rdma_read_qp_depth * rnicp-attr.max_qps;
+ rnicp-attr.rq_overflow_handled = 0;
+ rnicp-attr.can_modify_ird = 0;
+ rnicp-attr.can_modify_ord = 0;
+ rnicp-attr.max_mem_windows = rnicp-attr.max_mem_regs - 1;
+ rnicp-attr.stag0_value = 1;
+ rnicp-attr.zbva_support = 1;
+ rnicp-attr.local_invalidate_fence = 1;
+ rnicp-attr.cq_overflow_detection = 1;
+ return;
+}
+
+static void open_rnic_dev(struct t3cdev *tdev)
+{
+ struct iwch_dev *rnicp;
+ static int vers_printed;
+
+ PDBG(%s t3cdev %p\n, __FUNCTION__, tdev);
+ if (!vers_printed++)
+ printk(KERN_INFO MOD Chelsio T3 RDMA Driver - version %s\n,
+ DRV_VERSION);
+ rnicp = (struct iwch_dev *)ib_alloc_device(sizeof(*rnicp));
+ if (!rnicp) {
+ printk(KERN_ERR MOD Cannot allocate ib device\n);
+ return;
+ }
+ rnicp-rdev.ulp =
