X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fenic%2Fbase%2Fvnic_wq.c;h=d61c4c6e27e5038aac0a7330dbc4e440791ce9aa;hb=7ed3599095565792cfd0a4de13f1b03be9412f14;hp=e52cef0be11fe18f740bddc7ceb30b3515b10213;hpb=72f3de308fce9d6b537440f5f1a414c069d2c79d;p=dpdk.git diff --git a/drivers/net/enic/base/vnic_wq.c b/drivers/net/enic/base/vnic_wq.c index e52cef0be1..d61c4c6e27 100644 --- a/drivers/net/enic/base/vnic_wq.c +++ b/drivers/net/enic/base/vnic_wq.c @@ -1,37 +1,7 @@ -/* - * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved. * Copyright 2007 Nuova Systems, Inc. All rights reserved. - * - * Copyright (c) 2014, Cisco Systems, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * */ -#ident "$Id: vnic_wq.c 183023 2014-07-22 23:47:25Z xuywang $" #include "vnic_dev.h" #include "vnic_wq.h" @@ -53,78 +23,37 @@ int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq, char res_name[NAME_MAX]; static int instance; - snprintf(res_name, sizeof(res_name), "%d-wq-%d", instance++, wq->index); + snprintf(res_name, sizeof(res_name), "%d-wq-%u", instance++, wq->index); return vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size, wq->socket_id, res_name); } static int vnic_wq_alloc_bufs(struct vnic_wq *wq) { - struct vnic_wq_buf *buf; - unsigned int i, j, count = wq->ring.desc_count; - unsigned int blks = VNIC_WQ_BUF_BLKS_NEEDED(count); - - for (i = 0; i < blks; i++) { - wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ(count), GFP_ATOMIC); - if (!wq->bufs[i]) - return -ENOMEM; - } - - for (i = 0; i < blks; i++) { - buf = wq->bufs[i]; - for (j = 0; j < VNIC_WQ_BUF_BLK_ENTRIES(count); j++) { - buf->index = i * VNIC_WQ_BUF_BLK_ENTRIES(count) + j; - buf->desc = (u8 *)wq->ring.descs + - wq->ring.desc_size * buf->index; - if (buf->index + 1 == count) { - buf->next = wq->bufs[0]; - break; - } else if (j + 1 == VNIC_WQ_BUF_BLK_ENTRIES(count)) { - buf->next = wq->bufs[i + 1]; - } else { - buf->next = buf + 1; - buf++; - } - } - } - - wq->to_use = wq->to_clean = wq->bufs[0]; - + unsigned int count = wq->ring.desc_count; + /* Allocate the mbuf ring */ + wq->bufs = (struct vnic_wq_buf *)rte_zmalloc_socket("wq->bufs", + sizeof(struct vnic_wq_buf) * count, + RTE_CACHE_LINE_SIZE, wq->socket_id); + wq->head_idx = 0; + wq->tail_idx = 0; + if (wq->bufs == NULL) + return -ENOMEM; return 0; } void vnic_wq_free(struct vnic_wq *wq) { struct vnic_dev *vdev; - unsigned int i; vdev = wq->vdev; vnic_dev_free_desc_ring(vdev, &wq->ring); - for (i = 0; i < VNIC_WQ_BUF_BLKS_MAX; i++) { - if (wq->bufs[i]) { - kfree(wq->bufs[i]); - wq->bufs[i] = NULL; - } - } - + rte_free(wq->bufs); wq->ctrl = NULL; } -int vnic_wq_mem_size(struct vnic_wq *wq, unsigned int desc_count, - unsigned int desc_size) -{ - int mem_size = 0; - - mem_size += vnic_dev_desc_ring_size(&wq->ring, desc_count, desc_size); - - mem_size += VNIC_WQ_BUF_BLKS_NEEDED(wq->ring.desc_count) * - VNIC_WQ_BUF_BLK_SZ(wq->ring.desc_count); - - return mem_size; -} - int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index, unsigned int desc_count, unsigned int desc_size) @@ -173,9 +102,8 @@ void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index, iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset); iowrite32(0, &wq->ctrl->error_status); - wq->to_use = wq->to_clean = - &wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES(count)] - [fetch_index % VNIC_WQ_BUF_BLK_ENTRIES(count)]; + wq->head_idx = fetch_index; + wq->tail_idx = wq->head_idx; } void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, @@ -185,11 +113,7 @@ void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, vnic_wq_init_start(wq, cq_index, 0, 0, error_interrupt_enable, error_interrupt_offset); -} - -void vnic_wq_error_out(struct vnic_wq *wq, unsigned int error) -{ - iowrite32(error, &wq->ctrl->error_status); + wq->last_completed_index = 0; } unsigned int vnic_wq_error_status(struct vnic_wq *wq) @@ -221,21 +145,26 @@ int vnic_wq_disable(struct vnic_wq *wq) } void vnic_wq_clean(struct vnic_wq *wq, - void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf)) + void (*buf_clean)(struct vnic_wq_buf *buf)) { struct vnic_wq_buf *buf; + unsigned int to_clean = wq->tail_idx; - buf = wq->to_clean; + buf = &wq->bufs[to_clean]; while (vnic_wq_desc_used(wq) > 0) { - (*buf_clean)(wq, buf); + (*buf_clean)(buf); + to_clean = buf_idx_incr(wq->ring.desc_count, to_clean); - buf = wq->to_clean = buf->next; + buf = &wq->bufs[to_clean]; wq->ring.desc_avail++; } - wq->to_use = wq->to_clean = wq->bufs[0]; + wq->head_idx = 0; + wq->tail_idx = 0; + wq->last_completed_index = 0; + *((uint32_t *)wq->cqmsg_rz->addr) = 0; iowrite32(0, &wq->ctrl->fetch_index); iowrite32(0, &wq->ctrl->posted_index);