| tx.c (a2ed933dfefac8976ac915e1b1b60028b9c344b3) | tx.c (003eae5a28c6c9d50290a4ac9b955be912f24c9f) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2/* 3 * Copyright (C) 2003-2014, 2018-2021, 2023-2024 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7#include <linux/etherdevice.h> 8#include <linux/ieee80211.h> --- 1756 unchanged lines hidden (view full) --- 1765 * Note that we put a page chaining pointer *last* in the 1766 * page - we need it somewhere, and if it's there then we 1767 * avoid DMA mapping the last bits of the page which may 1768 * trigger the 32-bit boundary hardware bug. 1769 * 1770 * (see also get_workaround_page() in tx-gen2.c) 1771 */ 1772 if (((unsigned long)p->pos & ~PAGE_MASK) + len < IWL_TSO_PAGE_DATA_SIZE) { | 1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2/* 3 * Copyright (C) 2003-2014, 2018-2021, 2023-2024 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7#include <linux/etherdevice.h> 8#include <linux/ieee80211.h> --- 1756 unchanged lines hidden (view full) --- 1765 * Note that we put a page chaining pointer *last* in the 1766 * page - we need it somewhere, and if it's there then we 1767 * avoid DMA mapping the last bits of the page which may 1768 * trigger the 32-bit boundary hardware bug. 1769 * 1770 * (see also get_workaround_page() in tx-gen2.c) 1771 */ 1772 if (((unsigned long)p->pos & ~PAGE_MASK) + len < IWL_TSO_PAGE_DATA_SIZE) { |
| 1773 info = IWL_TSO_PAGE_INFO(page_address(ret)); | 1773 info = IWL_TSO_PAGE_INFO(page_address(p->page)); |
| 1774 goto out; 1775 } 1776 1777 /* We don't have enough room on this page, get a new one. */ 1778 iwl_pcie_free_and_unmap_tso_page(trans, p->page); 1779 1780alloc: 1781 p->page = alloc_page(GFP_ATOMIC); 1782 if (!p->page) 1783 return NULL; 1784 p->pos = page_address(p->page); 1785 | 1774 goto out; 1775 } 1776 1777 /* We don't have enough room on this page, get a new one. */ 1778 iwl_pcie_free_and_unmap_tso_page(trans, p->page); 1779 1780alloc: 1781 p->page = alloc_page(GFP_ATOMIC); 1782 if (!p->page) 1783 return NULL; 1784 p->pos = page_address(p->page); 1785 |
| 1786 info = IWL_TSO_PAGE_INFO(page_address(ret)); | 1786 info = IWL_TSO_PAGE_INFO(page_address(p->page)); |
| 1787 1788 /* set the chaining pointer to NULL */ 1789 info->next = NULL; 1790 1791 /* Create a DMA mapping for the page */ 1792 phys = dma_map_page_attrs(trans->dev, p->page, 0, PAGE_SIZE, 1793 DMA_TO_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); 1794 if (unlikely(dma_mapping_error(trans->dev, phys))) { --- 871 unchanged lines hidden --- | 1787 1788 /* set the chaining pointer to NULL */ 1789 info->next = NULL; 1790 1791 /* Create a DMA mapping for the page */ 1792 phys = dma_map_page_attrs(trans->dev, p->page, 0, PAGE_SIZE, 1793 DMA_TO_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); 1794 if (unlikely(dma_mapping_error(trans->dev, phys))) { --- 871 unchanged lines hidden --- |