RDMA/nes: Add a driver for NetEffect RNICs

Add a standard NIC and RDMA/iWARP driver for NetEffect 1/10Gb ethernet adapters.

Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 169 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/nes/nes_verbs.h b/drivers/infiniband/hw/nes/nes_verbs.h
new file mode 100644
index 00000000000..6c6b4da5184
--- /dev/null
+++ b/drivers/infiniband/hw/nes/nes_verbs.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
+ * Copyright (c) 2005 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.
+ *
+ */
+
+#ifndef NES_VERBS_H
+#define NES_VERBS_H
+
+struct nes_device;
+
+#define NES_MAX_USER_DB_REGIONS  4096
+#define NES_MAX_USER_WQ_REGIONS  4096
+
+struct nes_ucontext {
+	struct ib_ucontext ibucontext;
+	struct nes_device  *nesdev;
+	unsigned long      mmap_wq_offset;
+	unsigned long      mmap_cq_offset; /* to be removed */
+	int                index;		/* rnic index (minor) */
+	unsigned long      allocated_doorbells[BITS_TO_LONGS(NES_MAX_USER_DB_REGIONS)];
+	u16                mmap_db_index[NES_MAX_USER_DB_REGIONS];
+	u16                first_free_db;
+	unsigned long      allocated_wqs[BITS_TO_LONGS(NES_MAX_USER_WQ_REGIONS)];
+	struct nes_qp      *mmap_nesqp[NES_MAX_USER_WQ_REGIONS];
+	u16                first_free_wq;
+	struct list_head   cq_reg_mem_list;
+	struct list_head   qp_reg_mem_list;
+	u32                mcrqf;
+	atomic_t	   usecnt;
+};
+
+struct nes_pd {
+	struct ib_pd ibpd;
+	u16          pd_id;
+	atomic_t     sqp_count;
+	u16          mmap_db_index;
+};
+
+struct nes_mr {
+	union {
+		struct ib_mr  ibmr;
+		struct ib_mw  ibmw;
+		struct ib_fmr ibfmr;
+	};
+	struct ib_umem    *region;
+	u16               pbls_used;
+	u8                mode;
+	u8                pbl_4k;
+};
+
+struct nes_hw_pb {
+	__le32 pa_low;
+	__le32 pa_high;
+};
+
+struct nes_vpbl {
+	dma_addr_t       pbl_pbase;
+	struct nes_hw_pb *pbl_vbase;
+};
+
+struct nes_root_vpbl {
+	dma_addr_t       pbl_pbase;
+	struct nes_hw_pb *pbl_vbase;
+	struct nes_vpbl  *leaf_vpbl;
+};
+
+struct nes_fmr {
+	struct nes_mr        nesmr;
+	u32                  leaf_pbl_cnt;
+	struct nes_root_vpbl root_vpbl;
+	struct ib_qp         *ib_qp;
+	int                  access_rights;
+	struct ib_fmr_attr   attr;
+};
+
+struct nes_av;
+
+struct nes_cq {
+	struct ib_cq     ibcq;
+	struct nes_hw_cq hw_cq;
+	u32              polled_completions;
+	u32              cq_mem_size;
+	spinlock_t       lock;
+	u8               virtual_cq;
+	u8               pad[3];
+};
+
+struct nes_wq {
+	spinlock_t lock;
+};
+
+struct iw_cm_id;
+struct ietf_mpa_frame;
+
+struct nes_qp {
+	struct ib_qp          ibqp;
+	void                  *allocated_buffer;
+	struct iw_cm_id       *cm_id;
+	struct workqueue_struct *wq;
+	struct work_struct    disconn_work;
+	struct nes_cq         *nesscq;
+	struct nes_cq         *nesrcq;
+	struct nes_pd         *nespd;
+	void *cm_node; /* handle of the node this QP is associated with */
+	struct ietf_mpa_frame *ietf_frame;
+	dma_addr_t            ietf_frame_pbase;
+	wait_queue_head_t     state_waitq;
+	unsigned long         socket;
+	struct nes_hw_qp      hwqp;
+	struct work_struct    work;
+	struct work_struct    ae_work;
+	enum ib_qp_state      ibqp_state;
+	u32                   iwarp_state;
+	u32                   hte_index;
+	u32                   last_aeq;
+	u32                   qp_mem_size;
+	atomic_t              refcount;
+	atomic_t              close_timer_started;
+	u32                   mmap_sq_db_index;
+	u32                   mmap_rq_db_index;
+	spinlock_t            lock;
+	struct nes_qp_context *nesqp_context;
+	dma_addr_t            nesqp_context_pbase;
+	void	              *pbl_vbase;
+	dma_addr_t            pbl_pbase;
+	struct page           *page;
+	wait_queue_head_t     kick_waitq;
+	u16                   in_disconnect;
+	u16                   private_data_len;
+	u8                    active_conn;
+	u8                    skip_lsmm;
+	u8                    user_mode;
+	u8                    hte_added;
+	u8                    hw_iwarp_state;
+	u8                    flush_issued;
+	u8                    hw_tcp_state;
+	u8                    disconn_pending;
+	u8                    destroyed;
+};
+#endif			/* NES_VERBS_H */