diff options
| author | Christoph Hellwig <hch@lst.de> | 2011-05-19 10:58:19 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-06-15 14:36:16 +0200 |
| commit | d353fb72f59cd0e1f67baf773e74719cda761a89 (patch) | |
| tree | 994311cabf1fd896af097c7165fa4176b991c09c /hw/ide/pci.c | |
| parent | 4e1e00515e2522bbae98a0653ea2692ec20851ac (diff) | |
ide: add TRIM support
Add support for TRIM sub function of the data set management command,
and wire it up to the qemu discard infrastructure.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/ide/pci.c')
| -rw-r--r-- | hw/ide/pci.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/hw/ide/pci.c b/hw/ide/pci.c index 80c579457a..c940375064 100644 --- a/hw/ide/pci.c +++ b/hw/ide/pci.c @@ -200,8 +200,13 @@ static void bmdma_restart_bh(void *opaque) is_read = !!(bus->error_status & BM_STATUS_RETRY_READ); if (bus->error_status & BM_STATUS_DMA_RETRY) { - bus->error_status &= ~(BM_STATUS_DMA_RETRY | BM_STATUS_RETRY_READ); - bmdma_restart_dma(bm, is_read ? IDE_DMA_READ : IDE_DMA_WRITE); + if (bus->error_status & BM_STATUS_RETRY_TRIM) { + bus->error_status &= ~BM_STATUS_RETRY_TRIM; + bmdma_restart_dma(bm, IDE_DMA_TRIM); + } else { + bus->error_status &= ~(BM_STATUS_DMA_RETRY | BM_STATUS_RETRY_READ); + bmdma_restart_dma(bm, is_read ? IDE_DMA_READ : IDE_DMA_WRITE); + } } else if (bus->error_status & BM_STATUS_PIO_RETRY) { bus->error_status &= ~(BM_STATUS_PIO_RETRY | BM_STATUS_RETRY_READ); if (is_read) { |