ide: Switch to byte-based aio block access

Sector-based blk_aio_readv() and blk_aio_writev() should die; switch
to byte-based blk_aio_preadv() and blk_aio_pwritev() instead.

The patch had to touch multiple files at once, because dma_blk_io()
takes pointers to the functions, and ide_issue_trim() piggybacks on
the same interface (while ignoring offset under the hood).

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

3 files changed, 9 insertions, 12 deletions

diff --git a/hw/ide/core.c b/hw/ide/core.c
index 41e6a2d..fe2bfba 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -442,7 +442,7 @@ static void ide_issue_trim_cb(void *opaque, int ret)
 }
 
 BlockAIOCB *ide_issue_trim(BlockBackend *blk,
-        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+        int64_t offset, QEMUIOVector *qiov, BdrvRequestFlags flags,
         BlockCompletionFunc *cb, void *opaque)
 {
     TrimAIOCB *iocb;
@@ -616,8 +616,8 @@ BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
     req->iov.iov_len = iov->size;
     qemu_iovec_init_external(&req->qiov, &req->iov, 1);
 
-    aioreq = blk_aio_readv(s->blk, sector_num, &req->qiov, nb_sectors,
-                           ide_buffered_readv_cb, req);
+    aioreq = blk_aio_preadv(s->blk, sector_num << BDRV_SECTOR_BITS,
+                            &req->qiov, 0, ide_buffered_readv_cb, req);
 
     QLIST_INSERT_HEAD(&s->buffered_requests, req, list);
     return aioreq;
@@ -1006,8 +1006,8 @@ static void ide_sector_write(IDEState *s)
 
     block_acct_start(blk_get_stats(s->blk), &s->acct,
                      n * BDRV_SECTOR_SIZE, BLOCK_ACCT_WRITE);
-    s->pio_aiocb = blk_aio_writev(s->blk, sector_num, &s->qiov, n,
-                                  ide_sector_write_cb, s);
+    s->pio_aiocb = blk_aio_pwritev(s->blk, sector_num << BDRV_SECTOR_BITS,
+                                   &s->qiov, 0, ide_sector_write_cb, s);
 }
 
 static void ide_flush_cb(void *opaque, int ret)
diff --git a/hw/ide/internal.h b/hw/ide/internal.h
index d2c458f..ceb9e59 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -614,7 +614,7 @@ void ide_transfer_start(IDEState *s, uint8_t *buf, int size,
 void ide_transfer_stop(IDEState *s);
 void ide_set_inactive(IDEState *s, bool more);
 BlockAIOCB *ide_issue_trim(BlockBackend *blk,
-        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
+        int64_t offset, QEMUIOVector *qiov, BdrvRequestFlags flags,
         BlockCompletionFunc *cb, void *opaque);
 BlockAIOCB *ide_buffered_readv(IDEState *s, int64_t sector_num,
                                QEMUIOVector *iov, int nb_sectors,
diff --git a/hw/ide/macio.c b/hw/ide/macio.c
index ae29b6f..d7d9c0f 100644
--- a/hw/ide/macio.c
+++ b/hw/ide/macio.c
@@ -120,8 +120,7 @@ static void pmac_dma_read(BlockBackend *blk,
     MACIO_DPRINTF("--- Block read transfer - sector_num: %" PRIx64 "  "
                   "nsector: %x\n", (offset >> 9), (bytes >> 9));
 
-    s->bus->dma->aiocb = blk_aio_readv(blk, (offset >> 9), &io->iov,
-                             (bytes >> 9), cb, io);
+    s->bus->dma->aiocb = blk_aio_preadv(blk, offset, &io->iov, 0, cb, io);
 }
 
 static void pmac_dma_write(BlockBackend *blk,
@@ -205,8 +204,7 @@ static void pmac_dma_write(BlockBackend *blk,
     MACIO_DPRINTF("--- Block write transfer - sector_num: %" PRIx64 "  "
                   "nsector: %x\n", (offset >> 9), (bytes >> 9));
 
-    s->bus->dma->aiocb = blk_aio_writev(blk, (offset >> 9), &io->iov,
-                             (bytes >> 9), cb, io);
+    s->bus->dma->aiocb = blk_aio_pwritev(blk, offset, &io->iov, 0, cb, io);
 }
 
 static void pmac_dma_trim(BlockBackend *blk,
@@ -232,8 +230,7 @@ static void pmac_dma_trim(BlockBackend *blk,
     s->io_buffer_index += io->len;
     io->len = 0;
 
-    s->bus->dma->aiocb = ide_issue_trim(blk, (offset >> 9), &io->iov,
-                             (bytes >> 9), cb, io);
+    s->bus->dma->aiocb = ide_issue_trim(blk, offset, &io->iov, 0, cb, io);
 }
 
 static void pmac_ide_atapi_transfer_cb(void *opaque, int ret)