static int vnic_rq_alloc_bufs(struct vnic_rq *rq) { struct vnic_rq_buf *buf; unsigned int i, j, count = rq->ring.desc_count; unsigned int blks = VNIC_RQ_BUF_BLKS_NEEDED(count); for (i = 0; i < blks; i++) { rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ(count), GFP_ATOMIC); if (!rq->bufs[i]) return -ENOMEM; } for (i = 0; i < blks; i++) { buf = rq->bufs[i]; for (j = 0; j < VNIC_RQ_BUF_BLK_ENTRIES(count); j++) { buf->index = i * VNIC_RQ_BUF_BLK_ENTRIES(count) + j; buf->desc = (u8 *)rq->ring.descs + rq->ring.desc_size * buf->index; if (buf->index + 1 == count) { buf->next = rq->bufs[0]; break; } else if (j + 1 == VNIC_RQ_BUF_BLK_ENTRIES(count)) { buf->next = rq->bufs[i + 1]; } else { buf->next = buf + 1; buf++; } } } rq->to_use = rq->to_clean = rq->bufs[0]; return 0; }
int vnic_rq_mem_size(struct vnic_rq *rq, unsigned int desc_count, unsigned int desc_size) { int mem_size = 0; mem_size += vnic_dev_desc_ring_size(&rq->ring, desc_count, desc_size); mem_size += VNIC_RQ_BUF_BLKS_NEEDED(rq->ring.desc_count) * VNIC_RQ_BUF_BLK_SZ(rq->ring.desc_count); return mem_size; }
static int vnic_rq_alloc_bufs(struct vnic_rq *rq) { struct vnic_rq_buf *buf; struct vnic_dev *vdev; unsigned int i, j, count = rq->ring.desc_count; unsigned int blks = VNIC_RQ_BUF_BLKS_NEEDED(count); vdev = rq->vdev; for (i = 0; i < blks; i++) { <<<<<<< HEAD rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ(count), GFP_ATOMIC); if (!rq->bufs[i]) { pr_err("Failed to alloc rq_bufs\n"); =======
static int vnic_rq_alloc_bufs(struct vnic_rq *rq) { struct vnic_rq_buf *buf; struct vnic_dev *vdev; unsigned int i, j, count = rq->ring.desc_count; unsigned int blks = VNIC_RQ_BUF_BLKS_NEEDED(count); vdev = rq->vdev; for (i = 0; i < blks; i++) { rq->bufs[i] = kzalloc(VNIC_RQ_BUF_BLK_SZ, GFP_ATOMIC); if (!rq->bufs[i]) { printk(KERN_ERR "Failed to alloc rq_bufs\n"); return -ENOMEM; } } for (i = 0; i < blks; i++) { buf = rq->bufs[i]; for (j = 0; j < VNIC_RQ_BUF_BLK_ENTRIES; j++) { buf->index = i * VNIC_RQ_BUF_BLK_ENTRIES + j; buf->desc = (u8 *)rq->ring.descs + rq->ring.desc_size * buf->index; if (buf->index + 1 == count) { buf->next = rq->bufs[0]; break; } else if (j + 1 == VNIC_RQ_BUF_BLK_ENTRIES) { buf->next = rq->bufs[i + 1]; } else { buf->next = buf + 1; buf++; } } } rq->to_use = rq->to_clean = rq->bufs[0]; rq->buf_index = 0; return 0; }