diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-13 01:32:22 -0700 |
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committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-11 02:41:35 -0700 |
commit | 5a2cc190eb3fe58fe519795c509b01b25795992e (patch) | |
tree | 9a319736bd77979ab5dbdc26d29424d84eb235b0 /drivers/net/mlx4/en_cq.c | |
parent | f844a0ead401c3ce0f01a8bb4d6cea2f0f6ad863 (diff) | |
download | linux-5a2cc190eb3fe58fe519795c509b01b25795992e.tar.gz linux-5a2cc190eb3fe58fe519795c509b01b25795992e.tar.bz2 linux-5a2cc190eb3fe58fe519795c509b01b25795992e.zip |
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>
Diffstat (limited to 'drivers/net/mlx4/en_cq.c')
-rw-r--r-- | drivers/net/mlx4/en_cq.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/drivers/net/mlx4/en_cq.c b/drivers/net/mlx4/en_cq.c deleted file mode 100644 index ec4b6d047fe0..000000000000 --- a/drivers/net/mlx4/en_cq.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Copyright (c) 2007 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/cq.h> -#include <linux/mlx4/qp.h> -#include <linux/mlx4/cmd.h> - -#include "mlx4_en.h" - -static void mlx4_en_cq_event(struct mlx4_cq *cq, enum mlx4_event event) -{ - return; -} - - -int mlx4_en_create_cq(struct mlx4_en_priv *priv, - struct mlx4_en_cq *cq, - int entries, int ring, enum cq_type mode) -{ - struct mlx4_en_dev *mdev = priv->mdev; - int err; - - cq->size = entries; - if (mode == RX) - cq->buf_size = cq->size * sizeof(struct mlx4_cqe); - else - cq->buf_size = sizeof(struct mlx4_cqe); - - cq->ring = ring; - cq->is_tx = mode; - spin_lock_init(&cq->lock); - - err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres, - cq->buf_size, 2 * PAGE_SIZE); - if (err) - return err; - - err = mlx4_en_map_buffer(&cq->wqres.buf); - if (err) - mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size); - else - cq->buf = (struct mlx4_cqe *) cq->wqres.buf.direct.buf; - - return err; -} - -int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) -{ - struct mlx4_en_dev *mdev = priv->mdev; - int err = 0; - char name[25]; - - cq->dev = mdev->pndev[priv->port]; - cq->mcq.set_ci_db = cq->wqres.db.db; - cq->mcq.arm_db = cq->wqres.db.db + 1; - *cq->mcq.set_ci_db = 0; - *cq->mcq.arm_db = 0; - memset(cq->buf, 0, cq->buf_size); - - if (cq->is_tx == RX) { - if (mdev->dev->caps.comp_pool) { - if (!cq->vector) { - sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring); - if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) { - cq->vector = (cq->ring + 1 + priv->port) % - mdev->dev->caps.num_comp_vectors; - mlx4_warn(mdev, "Failed Assigning an EQ to " - "%s_rx-%d ,Falling back to legacy EQ's\n", - priv->dev->name, cq->ring); - } - } - } else { - cq->vector = (cq->ring + 1 + priv->port) % - mdev->dev->caps.num_comp_vectors; - } - } else { - if (!cq->vector || !mdev->dev->caps.comp_pool) { - /*Fallback to legacy pool in case of error*/ - cq->vector = 0; - } - } - - if (!cq->is_tx) - cq->size = priv->rx_ring[cq->ring].actual_size; - - err = mlx4_cq_alloc(mdev->dev, cq->size, &cq->wqres.mtt, &mdev->priv_uar, - cq->wqres.db.dma, &cq->mcq, cq->vector, cq->is_tx); - if (err) - return err; - - cq->mcq.comp = cq->is_tx ? mlx4_en_tx_irq : mlx4_en_rx_irq; - cq->mcq.event = mlx4_en_cq_event; - - if (cq->is_tx) { - init_timer(&cq->timer); - cq->timer.function = mlx4_en_poll_tx_cq; - cq->timer.data = (unsigned long) cq; - } else { - netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64); - napi_enable(&cq->napi); - } - - return 0; -} - -void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, - bool reserve_vectors) -{ - struct mlx4_en_dev *mdev = priv->mdev; - - mlx4_en_unmap_buffer(&cq->wqres.buf); - mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size); - if (priv->mdev->dev->caps.comp_pool && cq->vector && !reserve_vectors) - mlx4_release_eq(priv->mdev->dev, cq->vector); - cq->buf_size = 0; - cq->buf = NULL; -} - -void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) -{ - struct mlx4_en_dev *mdev = priv->mdev; - - if (cq->is_tx) - del_timer(&cq->timer); - else { - napi_disable(&cq->napi); - netif_napi_del(&cq->napi); - } - - mlx4_cq_free(mdev->dev, &cq->mcq); -} - -/* Set rx cq moderation parameters */ -int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) -{ - return mlx4_cq_modify(priv->mdev->dev, &cq->mcq, - cq->moder_cnt, cq->moder_time); -} - -int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq) -{ - mlx4_cq_arm(&cq->mcq, MLX4_CQ_DB_REQ_NOT, priv->mdev->uar_map, - &priv->mdev->uar_lock); - - return 0; -} - - |