diff options
Diffstat (limited to 'src/dpdk22/drivers/net/enic/base/vnic_wq.c')
| -rw-r--r-- | src/dpdk22/drivers/net/enic/base/vnic_wq.c | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/src/dpdk22/drivers/net/enic/base/vnic_wq.c b/src/dpdk22/drivers/net/enic/base/vnic_wq.c deleted file mode 100644 index a3ef4170..00000000 --- a/src/dpdk22/drivers/net/enic/base/vnic_wq.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * Copyright 2008-2010 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. - * - */ - -#include "vnic_dev.h" -#include "vnic_wq.h" - -static inline -int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq, - unsigned int index, enum vnic_res_type res_type) -{ - wq->ctrl = vnic_dev_get_res(vdev, res_type, index); - if (!wq->ctrl) - return -EINVAL; - return 0; -} - -static inline -int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq, - unsigned int desc_count, unsigned int desc_size) -{ - char res_name[NAME_MAX]; - static int instance; - - snprintf(res_name, sizeof(res_name), "%d-wq-%d", 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]; - - 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; - } - } - - 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) -{ - int err; - - wq->index = index; - wq->vdev = vdev; - - err = vnic_wq_get_ctrl(vdev, wq, index, RES_TYPE_WQ); - if (err) { - pr_err("Failed to hook WQ[%d] resource, err %d\n", index, err); - return err; - } - - vnic_wq_disable(wq); - - err = vnic_wq_alloc_ring(vdev, wq, desc_count, desc_size); - if (err) - return err; - - err = vnic_wq_alloc_bufs(wq); - if (err) { - vnic_wq_free(wq); - return err; - } - - return 0; -} - -void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index, - unsigned int fetch_index, unsigned int posted_index, - unsigned int error_interrupt_enable, - unsigned int error_interrupt_offset) -{ - u64 paddr; - unsigned int count = wq->ring.desc_count; - - paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET; - writeq(paddr, &wq->ctrl->ring_base); - iowrite32(count, &wq->ctrl->ring_size); - iowrite32(fetch_index, &wq->ctrl->fetch_index); - iowrite32(posted_index, &wq->ctrl->posted_index); - iowrite32(cq_index, &wq->ctrl->cq_index); - iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable); - 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)]; -} - -void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, - unsigned int error_interrupt_enable, - unsigned int error_interrupt_offset) -{ - 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); -} - -unsigned int vnic_wq_error_status(struct vnic_wq *wq) -{ - return ioread32(&wq->ctrl->error_status); -} - -void vnic_wq_enable(struct vnic_wq *wq) -{ - iowrite32(1, &wq->ctrl->enable); -} - -int vnic_wq_disable(struct vnic_wq *wq) -{ - unsigned int wait; - - iowrite32(0, &wq->ctrl->enable); - - /* Wait for HW to ACK disable request */ - for (wait = 0; wait < 1000; wait++) { - if (!(ioread32(&wq->ctrl->running))) - return 0; - udelay(10); - } - - pr_err("Failed to disable WQ[%d]\n", wq->index); - - return -ETIMEDOUT; -} - -void vnic_wq_clean(struct vnic_wq *wq, - void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf)) -{ - struct vnic_wq_buf *buf; - - buf = wq->to_clean; - - while (vnic_wq_desc_used(wq) > 0) { - - (*buf_clean)(wq, buf); - - buf = wq->to_clean = buf->next; - wq->ring.desc_avail++; - } - - wq->to_use = wq->to_clean = wq->bufs[0]; - - iowrite32(0, &wq->ctrl->fetch_index); - iowrite32(0, &wq->ctrl->posted_index); - iowrite32(0, &wq->ctrl->error_status); - - vnic_dev_clear_desc_ring(&wq->ring); -} |