mlx4: Move the Mellanox driver

Moves the Mellanox driver into drivers/net/ethernet/mellanox/ and
make the necessary Kconfig and Makefile changes.

CC: Roland Dreier <roland@kernel.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 257 deletions

diff --git a/drivers/net/mlx4/srq.c b/drivers/net/mlx4/srq.c
deleted file mode 100644
index 3b07b80..0000000
--- a/drivers/net/mlx4/srq.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
- * Copyright (c) 2007, 2008 Mellanox Technologies. 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/mlx4/cmd.h>
-#include <linux/gfp.h>
-
-#include "mlx4.h"
-#include "icm.h"
-
-struct mlx4_srq_context {
-	__be32			state_logsize_srqn;
-	u8			logstride;
-	u8			reserved1[3];
-	u8			pg_offset;
-	u8			reserved2[3];
-	u32			reserved3;
-	u8			log_page_size;
-	u8			reserved4[2];
-	u8			mtt_base_addr_h;
-	__be32			mtt_base_addr_l;
-	__be32			pd;
-	__be16			limit_watermark;
-	__be16			wqe_cnt;
-	u16			reserved5;
-	__be16			wqe_counter;
-	u32			reserved6;
-	__be64			db_rec_addr;
-};
-
-void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type)
-{
-	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
-	struct mlx4_srq *srq;
-
-	spin_lock(&srq_table->lock);
-
-	srq = radix_tree_lookup(&srq_table->tree, srqn & (dev->caps.num_srqs - 1));
-	if (srq)
-		atomic_inc(&srq->refcount);
-
-	spin_unlock(&srq_table->lock);
-
-	if (!srq) {
-		mlx4_warn(dev, "Async event for bogus SRQ %08x\n", srqn);
-		return;
-	}
-
-	srq->event(srq, event_type);
-
-	if (atomic_dec_and_test(&srq->refcount))
-		complete(&srq->free);
-}
-
-static int mlx4_SW2HW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
-			  int srq_num)
-{
-	return mlx4_cmd(dev, mailbox->dma, srq_num, 0, MLX4_CMD_SW2HW_SRQ,
-			MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
-			  int srq_num)
-{
-	return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
-			    mailbox ? 0 : 1, MLX4_CMD_HW2SW_SRQ,
-			    MLX4_CMD_TIME_CLASS_A);
-}
-
-static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
-{
-	return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ,
-			MLX4_CMD_TIME_CLASS_B);
-}
-
-static int mlx4_QUERY_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
-			  int srq_num)
-{
-	return mlx4_cmd_box(dev, 0, mailbox->dma, srq_num, 0, MLX4_CMD_QUERY_SRQ,
-			    MLX4_CMD_TIME_CLASS_A);
-}
-
-int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
-		   u64 db_rec, struct mlx4_srq *srq)
-{
-	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
-	struct mlx4_cmd_mailbox *mailbox;
-	struct mlx4_srq_context *srq_context;
-	u64 mtt_addr;
-	int err;
-
-	srq->srqn = mlx4_bitmap_alloc(&srq_table->bitmap);
-	if (srq->srqn == -1)
-		return -ENOMEM;
-
-	err = mlx4_table_get(dev, &srq_table->table, srq->srqn);
-	if (err)
-		goto err_out;
-
-	err = mlx4_table_get(dev, &srq_table->cmpt_table, srq->srqn);
-	if (err)
-		goto err_put;
-
-	spin_lock_irq(&srq_table->lock);
-	err = radix_tree_insert(&srq_table->tree, srq->srqn, srq);
-	spin_unlock_irq(&srq_table->lock);
-	if (err)
-		goto err_cmpt_put;
-
-	mailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(mailbox)) {
-		err = PTR_ERR(mailbox);
-		goto err_radix;
-	}
-
-	srq_context = mailbox->buf;
-	memset(srq_context, 0, sizeof *srq_context);
-
-	srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
-						      srq->srqn);
-	srq_context->logstride          = srq->wqe_shift - 4;
-	srq_context->log_page_size      = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
-
-	mtt_addr = mlx4_mtt_addr(dev, mtt);
-	srq_context->mtt_base_addr_h    = mtt_addr >> 32;
-	srq_context->mtt_base_addr_l    = cpu_to_be32(mtt_addr & 0xffffffff);
-	srq_context->pd			= cpu_to_be32(pdn);
-	srq_context->db_rec_addr        = cpu_to_be64(db_rec);
-
-	err = mlx4_SW2HW_SRQ(dev, mailbox, srq->srqn);
-	mlx4_free_cmd_mailbox(dev, mailbox);
-	if (err)
-		goto err_radix;
-
-	atomic_set(&srq->refcount, 1);
-	init_completion(&srq->free);
-
-	return 0;
-
-err_radix:
-	spin_lock_irq(&srq_table->lock);
-	radix_tree_delete(&srq_table->tree, srq->srqn);
-	spin_unlock_irq(&srq_table->lock);
-
-err_cmpt_put:
-	mlx4_table_put(dev, &srq_table->cmpt_table, srq->srqn);
-
-err_put:
-	mlx4_table_put(dev, &srq_table->table, srq->srqn);
-
-err_out:
-	mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
-
-	return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_alloc);
-
-void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq)
-{
-	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
-	int err;
-
-	err = mlx4_HW2SW_SRQ(dev, NULL, srq->srqn);
-	if (err)
-		mlx4_warn(dev, "HW2SW_SRQ failed (%d) for SRQN %06x\n", err, srq->srqn);
-
-	spin_lock_irq(&srq_table->lock);
-	radix_tree_delete(&srq_table->tree, srq->srqn);
-	spin_unlock_irq(&srq_table->lock);
-
-	if (atomic_dec_and_test(&srq->refcount))
-		complete(&srq->free);
-	wait_for_completion(&srq->free);
-
-	mlx4_table_put(dev, &srq_table->table, srq->srqn);
-	mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_free);
-
-int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark)
-{
-	return mlx4_ARM_SRQ(dev, srq->srqn, limit_watermark);
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_arm);
-
-int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark)
-{
-	struct mlx4_cmd_mailbox *mailbox;
-	struct mlx4_srq_context *srq_context;
-	int err;
-
-	mailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(mailbox))
-		return PTR_ERR(mailbox);
-
-	srq_context = mailbox->buf;
-
-	err = mlx4_QUERY_SRQ(dev, mailbox, srq->srqn);
-	if (err)
-		goto err_out;
-	*limit_watermark = be16_to_cpu(srq_context->limit_watermark);
-
-err_out:
-	mlx4_free_cmd_mailbox(dev, mailbox);
-	return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_srq_query);
-
-int mlx4_init_srq_table(struct mlx4_dev *dev)
-{
-	struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
-	int err;
-
-	spin_lock_init(&srq_table->lock);
-	INIT_RADIX_TREE(&srq_table->tree, GFP_ATOMIC);
-
-	err = mlx4_bitmap_init(&srq_table->bitmap, dev->caps.num_srqs,
-			       dev->caps.num_srqs - 1, dev->caps.reserved_srqs, 0);
-	if (err)
-		return err;
-
-	return 0;
-}
-
-void mlx4_cleanup_srq_table(struct mlx4_dev *dev)
-{
-	mlx4_bitmap_cleanup(&mlx4_priv(dev)->srq_table.bitmap);
-}