diff options
Diffstat (limited to 'dma-helpers.c')
-rw-r--r-- | dma-helpers.c | 59 |
1 files changed, 30 insertions, 29 deletions
diff --git a/dma-helpers.c b/dma-helpers.c index c347d4bafe..6918572e18 100644 --- a/dma-helpers.c +++ b/dma-helpers.c @@ -7,6 +7,7 @@ * (GNU GPL), version 2 or later. */ +#include "sysemu/block-backend.h" #include "sysemu/dma.h" #include "trace.h" #include "qemu/range.h" @@ -68,7 +69,7 @@ void qemu_sglist_destroy(QEMUSGList *qsg) typedef struct { BlockAIOCB common; - BlockDriverState *bs; + BlockBackend *blk; BlockAIOCB *acb; QEMUSGList *sg; uint64_t sector_num; @@ -80,7 +81,7 @@ typedef struct { DMAIOFunc *io_func; } DMAAIOCB; -static void dma_bdrv_cb(void *opaque, int ret); +static void dma_blk_cb(void *opaque, int ret); static void reschedule_dma(void *opaque) { @@ -88,7 +89,7 @@ static void reschedule_dma(void *opaque) qemu_bh_delete(dbs->bh); dbs->bh = NULL; - dma_bdrv_cb(dbs, 0); + dma_blk_cb(dbs, 0); } static void continue_after_map_failure(void *opaque) @@ -99,7 +100,7 @@ static void continue_after_map_failure(void *opaque) qemu_bh_schedule(dbs->bh); } -static void dma_bdrv_unmap(DMAAIOCB *dbs) +static void dma_blk_unmap(DMAAIOCB *dbs) { int i; @@ -115,7 +116,7 @@ static void dma_complete(DMAAIOCB *dbs, int ret) { trace_dma_complete(dbs, ret, dbs->common.cb); - dma_bdrv_unmap(dbs); + dma_blk_unmap(dbs); if (dbs->common.cb) { dbs->common.cb(dbs->common.opaque, ret); } @@ -127,13 +128,13 @@ static void dma_complete(DMAAIOCB *dbs, int ret) qemu_aio_unref(dbs); } -static void dma_bdrv_cb(void *opaque, int ret) +static void dma_blk_cb(void *opaque, int ret) { DMAAIOCB *dbs = (DMAAIOCB *)opaque; dma_addr_t cur_addr, cur_len; void *mem; - trace_dma_bdrv_cb(dbs, ret); + trace_dma_blk_cb(dbs, ret); dbs->acb = NULL; dbs->sector_num += dbs->iov.size / 512; @@ -142,7 +143,7 @@ static void dma_bdrv_cb(void *opaque, int ret) dma_complete(dbs, ret); return; } - dma_bdrv_unmap(dbs); + dma_blk_unmap(dbs); while (dbs->sg_cur_index < dbs->sg->nsg) { cur_addr = dbs->sg->sg[dbs->sg_cur_index].base + dbs->sg_cur_byte; @@ -168,8 +169,8 @@ static void dma_bdrv_cb(void *opaque, int ret) qemu_iovec_discard_back(&dbs->iov, dbs->iov.size & ~BDRV_SECTOR_MASK); } - dbs->acb = dbs->io_func(dbs->bs, dbs->sector_num, &dbs->iov, - dbs->iov.size / 512, dma_bdrv_cb, dbs); + dbs->acb = dbs->io_func(dbs->blk, dbs->sector_num, &dbs->iov, + dbs->iov.size / 512, dma_blk_cb, dbs); assert(dbs->acb); } @@ -180,7 +181,7 @@ static void dma_aio_cancel(BlockAIOCB *acb) trace_dma_aio_cancel(dbs); if (dbs->acb) { - bdrv_aio_cancel_async(dbs->acb); + blk_aio_cancel_async(dbs->acb); } } @@ -190,17 +191,17 @@ static const AIOCBInfo dma_aiocb_info = { .cancel_async = dma_aio_cancel, }; -BlockAIOCB *dma_bdrv_io( - BlockDriverState *bs, QEMUSGList *sg, uint64_t sector_num, +BlockAIOCB *dma_blk_io( + BlockBackend *blk, QEMUSGList *sg, uint64_t sector_num, DMAIOFunc *io_func, BlockCompletionFunc *cb, void *opaque, DMADirection dir) { - DMAAIOCB *dbs = qemu_aio_get(&dma_aiocb_info, bs, cb, opaque); + DMAAIOCB *dbs = blk_aio_get(&dma_aiocb_info, blk, cb, opaque); - trace_dma_bdrv_io(dbs, bs, sector_num, (dir == DMA_DIRECTION_TO_DEVICE)); + trace_dma_blk_io(dbs, blk, sector_num, (dir == DMA_DIRECTION_TO_DEVICE)); dbs->acb = NULL; - dbs->bs = bs; + dbs->blk = blk; dbs->sg = sg; dbs->sector_num = sector_num; dbs->sg_cur_index = 0; @@ -209,25 +210,25 @@ BlockAIOCB *dma_bdrv_io( dbs->io_func = io_func; dbs->bh = NULL; qemu_iovec_init(&dbs->iov, sg->nsg); - dma_bdrv_cb(dbs, 0); + dma_blk_cb(dbs, 0); return &dbs->common; } -BlockAIOCB *dma_bdrv_read(BlockDriverState *bs, - QEMUSGList *sg, uint64_t sector, - void (*cb)(void *opaque, int ret), void *opaque) +BlockAIOCB *dma_blk_read(BlockBackend *blk, + QEMUSGList *sg, uint64_t sector, + void (*cb)(void *opaque, int ret), void *opaque) { - return dma_bdrv_io(bs, sg, sector, bdrv_aio_readv, cb, opaque, - DMA_DIRECTION_FROM_DEVICE); + return dma_blk_io(blk, sg, sector, blk_aio_readv, cb, opaque, + DMA_DIRECTION_FROM_DEVICE); } -BlockAIOCB *dma_bdrv_write(BlockDriverState *bs, - QEMUSGList *sg, uint64_t sector, - void (*cb)(void *opaque, int ret), void *opaque) +BlockAIOCB *dma_blk_write(BlockBackend *blk, + QEMUSGList *sg, uint64_t sector, + void (*cb)(void *opaque, int ret), void *opaque) { - return dma_bdrv_io(bs, sg, sector, bdrv_aio_writev, cb, opaque, - DMA_DIRECTION_TO_DEVICE); + return dma_blk_io(blk, sg, sector, blk_aio_writev, cb, opaque, + DMA_DIRECTION_TO_DEVICE); } @@ -262,8 +263,8 @@ uint64_t dma_buf_write(uint8_t *ptr, int32_t len, QEMUSGList *sg) return dma_buf_rw(ptr, len, sg, DMA_DIRECTION_TO_DEVICE); } -void dma_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie, +void dma_acct_start(BlockBackend *blk, BlockAcctCookie *cookie, QEMUSGList *sg, enum BlockAcctType type) { - block_acct_start(bdrv_get_stats(bs), cookie, sg->size, type); + block_acct_start(blk_get_stats(blk), cookie, sg->size, type); } |