diff options
Diffstat (limited to 'include/linux/async_tx.h')
| -rw-r--r-- | include/linux/async_tx.h | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index 179b38ffd351..1ca9f9e05f4f 100644 --- a/include/linux/async_tx.h +++ b/include/linux/async_tx.h @@ -1,19 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright © 2006, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * */ #ifndef _ASYNC_TX_H_ #define _ASYNC_TX_H_ @@ -49,7 +36,7 @@ struct dma_chan_ref { /** * async_tx_flags - modifiers for the async_* calls * @ASYNC_TX_XOR_ZERO_DST: this flag must be used for xor operations where the - * the destination address is not a source. The asynchronous case handles this + * destination address is not a source. The asynchronous case handles this * implicitly, the synchronous case needs to zero the destination block. * @ASYNC_TX_XOR_DROP_DST: this flag must be used if the destination address is * also one of the source addresses. In the synchronous case the destination @@ -60,12 +47,15 @@ struct dma_chan_ref { * dependency chain * @ASYNC_TX_FENCE: specify that the next operation in the dependency * chain uses this operation's result as an input + * @ASYNC_TX_PQ_XOR_DST: do not overwrite the syndrome but XOR it with the + * input data. Required for rmw case. */ enum async_tx_flags { ASYNC_TX_XOR_ZERO_DST = (1 << 0), ASYNC_TX_XOR_DROP_DST = (1 << 1), ASYNC_TX_ACK = (1 << 2), ASYNC_TX_FENCE = (1 << 3), + ASYNC_TX_PQ_XOR_DST = (1 << 4), }; /** @@ -84,7 +74,7 @@ struct async_submit_ctl { void *scribble; }; -#ifdef CONFIG_DMA_ENGINE +#if defined(CONFIG_DMA_ENGINE) && !defined(CONFIG_ASYNC_TX_CHANNEL_SWITCH) #define async_tx_issue_pending_all dma_issue_pending_all /** @@ -173,9 +163,15 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset, int src_cnt, size_t len, struct async_submit_ctl *submit); struct dma_async_tx_descriptor * -async_xor_val(struct page *dest, struct page **src_list, unsigned int offset, - int src_cnt, size_t len, enum sum_check_flags *result, - struct async_submit_ctl *submit); +async_xor_offs(struct page *dest, unsigned int offset, + struct page **src_list, unsigned int *src_offset, + int src_cnt, size_t len, struct async_submit_ctl *submit); + +struct dma_async_tx_descriptor * +async_xor_val_offs(struct page *dest, unsigned int offset, + struct page **src_list, unsigned int *src_offset, + int src_cnt, size_t len, enum sum_check_flags *result, + struct async_submit_ctl *submit); struct dma_async_tx_descriptor * async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, @@ -185,21 +181,23 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, struct dma_async_tx_descriptor *async_trigger_callback(struct async_submit_ctl *submit); struct dma_async_tx_descriptor * -async_gen_syndrome(struct page **blocks, unsigned int offset, int src_cnt, +async_gen_syndrome(struct page **blocks, unsigned int *offsets, int src_cnt, size_t len, struct async_submit_ctl *submit); struct dma_async_tx_descriptor * -async_syndrome_val(struct page **blocks, unsigned int offset, int src_cnt, +async_syndrome_val(struct page **blocks, unsigned int *offsets, int src_cnt, size_t len, enum sum_check_flags *pqres, struct page *spare, - struct async_submit_ctl *submit); + unsigned int s_off, struct async_submit_ctl *submit); struct dma_async_tx_descriptor * async_raid6_2data_recov(int src_num, size_t bytes, int faila, int failb, - struct page **ptrs, struct async_submit_ctl *submit); + struct page **ptrs, unsigned int *offs, + struct async_submit_ctl *submit); struct dma_async_tx_descriptor * async_raid6_datap_recov(int src_num, size_t bytes, int faila, - struct page **ptrs, struct async_submit_ctl *submit); + struct page **ptrs, unsigned int *offs, + struct async_submit_ctl *submit); void async_tx_quiesce(struct dma_async_tx_descriptor **tx); #endif /* _ASYNC_TX_H_ */ |