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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-15 16:51:54 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-15 16:51:54 -0700
commitbc06cffdec85d487c77109dffcd2f285bdc502d3 (patch)
treeadc6e6398243da87e66c56102840597a329183a0 /drivers/scsi/aic7xxx/aic79xx_osm.c
parentd3502d7f25b22cfc9762bf1781faa9db1bb3be2e (diff)
parent9413d7b8aa777dd1fc7db9563ce5e80d769fe7b5 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (166 commits) [SCSI] ibmvscsi: convert to use the data buffer accessors [SCSI] dc395x: convert to use the data buffer accessors [SCSI] ncr53c8xx: convert to use the data buffer accessors [SCSI] sym53c8xx: convert to use the data buffer accessors [SCSI] ppa: coding police and printk levels [SCSI] aic7xxx_old: remove redundant GFP_ATOMIC from kmalloc [SCSI] i2o: remove redundant GFP_ATOMIC from kmalloc from device.c [SCSI] remove the dead CYBERSTORMIII_SCSI option [SCSI] don't build scsi_dma_{map,unmap} for !HAS_DMA [SCSI] Clean up scsi_add_lun a bit [SCSI] 53c700: Remove printk, which triggers because of low scsi clock on SNI RMs [SCSI] sni_53c710: Cleanup [SCSI] qla4xxx: Fix underrun/overrun conditions [SCSI] megaraid_mbox: use mutex instead of semaphore [SCSI] aacraid: add 51245, 51645 and 52245 adapters to documentation. [SCSI] qla2xxx: update version to 8.02.00-k1. [SCSI] qla2xxx: add support for NPIV [SCSI] stex: use resid for xfer len information [SCSI] Add Brownie 1200U3P to blacklist [SCSI] scsi.c: convert to use the data buffer accessors ...
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm.c')
-rw-r--r--drivers/scsi/aic7xxx/aic79xx_osm.c51
1 files changed, 13 insertions, 38 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);