rdma: Remove nes

This driver was first merged over 10 years ago and has not seen major
activity by the authors in the last 7 years. However, in that time it has
been patched 150 times to adapt it to changing kernel APIs.

Further, the hardware has several issues, like not supporting 64 bit DMA,
that make it rather uninteresting for use with modern systems and RDMA.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 0 insertions, 198 deletions

diff --git a/drivers/infiniband/hw/nes/nes_verbs.h b/drivers/infiniband/hw/nes/nes_verbs.h
deleted file mode 100644
index 114a9b59fefd..000000000000
--- a/drivers/infiniband/hw/nes/nes_verbs.h
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Copyright (c) 2006 - 2011 Intel Corporation.  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
-
-#define NES_TERM_SENT            0x01
-#define NES_TERM_RCVD            0x02
-#define NES_TERM_DONE            0x04
-
-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;
-};
-
-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;
-	__le64            *pages;
-	dma_addr_t        paddr;
-	u32               max_pages;
-	u32		  npages;
-};
-
-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];
-	u32		 mcrqf;
-};
-
-struct nes_wq {
-	spinlock_t lock;
-};
-
-struct disconn_work {
-	struct work_struct    work;
-	struct nes_qp         *nesqp;
-};
-
-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 nes_cq         *nesscq;
-	struct nes_cq         *nesrcq;
-	struct nes_pd         *nespd;
-	void *cm_node; /* handle of the node this QP is associated with */
-	void                  *ietf_frame;
-	u8                    ietf_frame_size;
-	dma_addr_t            ietf_frame_pbase;
-	struct ib_mr          *lsmm_mr;
-	struct nes_hw_qp      hwqp;
-	struct work_struct    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;
-	spinlock_t            pau_lock;
-	struct nes_qp_context *nesqp_context;
-	dma_addr_t            nesqp_context_pbase;
-	void	              *pbl_vbase;
-	dma_addr_t            pbl_pbase;
-	struct page           *page;
-	struct timer_list     terminate_timer;
-	enum ib_event_type    terminate_eventtype;
-	struct sk_buff_head   pau_list;
-	u32                   pau_rcv_nxt;
-	u16                   active_conn:1;
-	u16                   skip_lsmm:1;
-	u16                   user_mode:1;
-	u16                   hte_added:1;
-	u16                   flush_issued:1;
-	u16                   destroyed:1;
-	u16                   sig_all:1;
-	u16                   pau_mode:1;
-	u16                   rsvd:8;
-	u16                   private_data_len;
-	u16                   term_sq_flush_code;
-	u16                   term_rq_flush_code;
-	u8                    hw_iwarp_state;
-	u8                    hw_tcp_state;
-	u8                    term_flags;
-	u8                    sq_kmapped;
-	u8                    pau_busy;
-	u8                    pau_pending;
-	u8                    pau_state;
-	__u64                 nesuqp_addr;
-	struct completion     sq_drained;
-	struct completion     rq_drained;
-};
-
-struct ib_mr *nes_reg_phys_mr(struct ib_pd *ib_pd,
-		u64 addr, u64 size, int acc, u64 *iova_start);
-
-#endif			/* NES_VERBS_H */