diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-10-13 09:26:27 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-10-16 05:00:38 +0200 |
| commit | 3f9295b65ea44194252d60376036a3618d822152 (patch) | |
| tree | c08aa217d9c95b10fec4d1b788360cfcfc360afb /drivers/scsi/esp_scsi.h | |
| parent | scsi: esp_scsi: remove the dev argument to scsi_esp_register (diff) | |
| download | linux-3f9295b65ea44194252d60376036a3618d822152.tar.xz linux-3f9295b65ea44194252d60376036a3618d822152.zip | |
scsi: esp_scsi: move dma mapping into the core code
Except for the mac_esp driver, which uses PIO or pseudo DMA, all drivers
share the same dma mapping calls. Move the dma mapping into the core
code using the scsi_dma_map / scsi_dma_unmap helpers, with a special
identify mapping variant triggered off a new ESP_FLAG_NO_DMA_MAP flag
for mac_esp.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/esp_scsi.h')
| -rw-r--r-- | drivers/scsi/esp_scsi.h | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/scsi/esp_scsi.h b/drivers/scsi/esp_scsi.h index b27cf5e2b4b6..4ce2b8dc148b 100644 --- a/drivers/scsi/esp_scsi.h +++ b/drivers/scsi/esp_scsi.h @@ -363,19 +363,6 @@ struct esp_driver_ops { void (*esp_write8)(struct esp *esp, u8 val, unsigned long reg); u8 (*esp_read8)(struct esp *esp, unsigned long reg); - /* Map and unmap DMA memory. Eventually the driver will be - * converted to the generic DMA API as soon as SBUS is able to - * cope with that. At such time we can remove this. - */ - dma_addr_t (*map_single)(struct esp *esp, void *buf, - size_t sz, int dir); - int (*map_sg)(struct esp *esp, struct scatterlist *sg, - int num_sg, int dir); - void (*unmap_single)(struct esp *esp, dma_addr_t addr, - size_t sz, int dir); - void (*unmap_sg)(struct esp *esp, struct scatterlist *sg, - int num_sg, int dir); - /* Return non-zero if there is an IRQ pending. Usually this * status bit lives in the DMA controller sitting in front of * the ESP. This has to be accurate or else the ESP interrupt @@ -495,6 +482,7 @@ struct esp { #define ESP_FLAG_QUICKIRQ_CHECK 0x00000010 #define ESP_FLAG_DISABLE_SYNC 0x00000020 #define ESP_FLAG_USE_FIFO 0x00000040 +#define ESP_FLAG_NO_DMA_MAP 0x00000080 u8 select_state; #define ESP_SELECT_NONE 0x00 /* Not selecting */ |