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-rw-r--r--drivers/scsi/aic7xxx/aic79xx_osm.c51
-rw-r--r--drivers/scsi/aic7xxx/aic79xx_osm.h4
-rw-r--r--drivers/scsi/aic7xxx/aic7xxx_osm.c59
-rw-r--r--drivers/scsi/aic7xxx/aic7xxx_osm.h4
4 files changed, 27 insertions, 91 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 6054881f21f..286ab83116f 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -376,21 +376,10 @@ static __inline void
ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_cmnd *cmd;
- int direction;
cmd = scb->io_ctx;
- direction = cmd->sc_data_direction;
ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
- if (cmd->use_sg != 0) {
- struct scatterlist *sg;
-
- sg = (struct scatterlist *)cmd->request_buffer;
- pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction);
- } else if (cmd->request_bufflen != 0) {
- pci_unmap_single(ahd->dev_softc,
- scb->platform_data->buf_busaddr,
- cmd->request_bufflen, direction);
- }
+ scsi_dma_unmap(cmd);
}
/******************************** Macros **************************************/
@@ -1422,6 +1411,7 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
u_int col_idx;
uint16_t mask;
unsigned long flags;
+ int nseg;
ahd_lock(ahd, &flags);
@@ -1494,18 +1484,17 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
ahd_set_residual(scb, 0);
ahd_set_sense_residual(scb, 0);
scb->sg_count = 0;
- if (cmd->use_sg != 0) {
- void *sg;
- struct scatterlist *cur_seg;
- u_int nseg;
- int dir;
-
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- dir = cmd->sc_data_direction;
- nseg = pci_map_sg(ahd->dev_softc, cur_seg,
- cmd->use_sg, dir);
+
+ nseg = scsi_dma_map(cmd);
+ BUG_ON(nseg < 0);
+ if (nseg > 0) {
+ void *sg = scb->sg_list;
+ struct scatterlist *cur_seg;
+ int i;
+
scb->platform_data->xfer_len = 0;
- for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) {
+
+ scsi_for_each_sg(cmd, cur_seg, nseg, i) {
dma_addr_t addr;
bus_size_t len;
@@ -1513,22 +1502,8 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev,
len = sg_dma_len(cur_seg);
scb->platform_data->xfer_len += len;
sg = ahd_sg_setup(ahd, scb, sg, addr, len,
- /*last*/nseg == 1);
+ i == (nseg - 1));
}
- } else if (cmd->request_bufflen != 0) {
- void *sg;
- dma_addr_t addr;
- int dir;
-
- sg = scb->sg_list;
- dir = cmd->sc_data_direction;
- addr = pci_map_single(ahd->dev_softc,
- cmd->request_buffer,
- cmd->request_bufflen, dir);
- scb->platform_data->xfer_len = cmd->request_bufflen;
- scb->platform_data->buf_busaddr = addr;
- sg = ahd_sg_setup(ahd, scb, sg, addr,
- cmd->request_bufflen, /*last*/TRUE);
}
LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.h b/drivers/scsi/aic7xxx/aic79xx_osm.h
index ad9761b237d..853998be147 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.h
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.h
@@ -781,7 +781,7 @@ int ahd_get_transfer_dir(struct scb *scb)
static __inline
void ahd_set_residual(struct scb *scb, u_long resid)
{
- scb->io_ctx->resid = resid;
+ scsi_set_resid(scb->io_ctx, resid);
}
static __inline
@@ -793,7 +793,7 @@ void ahd_set_sense_residual(struct scb *scb, u_long resid)
static __inline
u_long ahd_get_residual(struct scb *scb)
{
- return (scb->io_ctx->resid);
+ return scsi_get_resid(scb->io_ctx);
}
static __inline
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 660f26e23a3..1803ab6fc21 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -402,18 +402,8 @@ ahc_linux_unmap_scb(struct ahc_softc *ahc, struct scb *scb)
cmd = scb->io_ctx;
ahc_sync_sglist(ahc, scb, BUS_DMASYNC_POSTWRITE);
- if (cmd->use_sg != 0) {
- struct scatterlist *sg;
-
- sg = (struct scatterlist *)cmd->request_buffer;
- pci_unmap_sg(ahc->dev_softc, sg, cmd->use_sg,
- cmd->sc_data_direction);
- } else if (cmd->request_bufflen != 0) {
- pci_unmap_single(ahc->dev_softc,
- scb->platform_data->buf_busaddr,
- cmd->request_bufflen,
- cmd->sc_data_direction);
- }
+
+ scsi_dma_unmap(cmd);
}
static __inline int
@@ -1381,6 +1371,7 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
struct ahc_tmode_tstate *tstate;
uint16_t mask;
struct scb_tailq *untagged_q = NULL;
+ int nseg;
/*
* Schedule us to run later. The only reason we are not
@@ -1472,23 +1463,21 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
ahc_set_residual(scb, 0);
ahc_set_sense_residual(scb, 0);
scb->sg_count = 0;
- if (cmd->use_sg != 0) {
+
+ nseg = scsi_dma_map(cmd);
+ BUG_ON(nseg < 0);
+ if (nseg > 0) {
struct ahc_dma_seg *sg;
struct scatterlist *cur_seg;
- struct scatterlist *end_seg;
- int nseg;
+ int i;
- cur_seg = (struct scatterlist *)cmd->request_buffer;
- nseg = pci_map_sg(ahc->dev_softc, cur_seg, cmd->use_sg,
- cmd->sc_data_direction);
- end_seg = cur_seg + nseg;
/* Copy the segments into the SG list. */
sg = scb->sg_list;
/*
* The sg_count may be larger than nseg if
* a transfer crosses a 32bit page.
- */
- while (cur_seg < end_seg) {
+ */
+ scsi_for_each_sg(cmd, cur_seg, nseg, i) {
dma_addr_t addr;
bus_size_t len;
int consumed;
@@ -1499,7 +1488,6 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
sg, addr, len);
sg += consumed;
scb->sg_count += consumed;
- cur_seg++;
}
sg--;
sg->len |= ahc_htole32(AHC_DMA_LAST_SEG);
@@ -1516,33 +1504,6 @@ ahc_linux_run_command(struct ahc_softc *ahc, struct ahc_linux_device *dev,
*/
scb->hscb->dataptr = scb->sg_list->addr;
scb->hscb->datacnt = scb->sg_list->len;
- } else if (cmd->request_bufflen != 0) {
- struct ahc_dma_seg *sg;
- dma_addr_t addr;
-
- sg = scb->sg_list;
- addr = pci_map_single(ahc->dev_softc,
- cmd->request_buffer,
- cmd->request_bufflen,
- cmd->sc_data_direction);
- scb->platform_data->buf_busaddr = addr;
- scb->sg_count = ahc_linux_map_seg(ahc, scb,
- sg, addr,
- cmd->request_bufflen);
- sg->len |= ahc_htole32(AHC_DMA_LAST_SEG);
-
- /*
- * Reset the sg list pointer.
- */
- scb->hscb->sgptr =
- ahc_htole32(scb->sg_list_phys | SG_FULL_RESID);
-
- /*
- * Copy the first SG into the "current"
- * data pointer area.
- */
- scb->hscb->dataptr = sg->addr;
- scb->hscb->datacnt = sg->len;
} else {
scb->hscb->sgptr = ahc_htole32(SG_LIST_NULL);
scb->hscb->dataptr = 0;
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h
index 8fee7edc6eb..b48dab447bd 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.h
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h
@@ -751,7 +751,7 @@ int ahc_get_transfer_dir(struct scb *scb)
static __inline
void ahc_set_residual(struct scb *scb, u_long resid)
{
- scb->io_ctx->resid = resid;
+ scsi_set_resid(scb->io_ctx, resid);
}
static __inline
@@ -763,7 +763,7 @@ void ahc_set_sense_residual(struct scb *scb, u_long resid)
static __inline
u_long ahc_get_residual(struct scb *scb)
{
- return (scb->io_ctx->resid);
+ return scsi_get_resid(scb->io_ctx);
}
static __inline
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 15:36:29 +0000