diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-15 23:51:54 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-15 23:51:54 (GMT) |
commit | bc06cffdec85d487c77109dffcd2f285bdc502d3 (patch) | |
tree | adc6e6398243da87e66c56102840597a329183a0 /drivers/ieee1394/sbp2.c | |
parent | d3502d7f25b22cfc9762bf1781faa9db1bb3be2e (diff) | |
parent | 9413d7b8aa777dd1fc7db9563ce5e80d769fe7b5 (diff) | |
download | linux-bc06cffdec85d487c77109dffcd2f285bdc502d3.tar.xz |
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/ieee1394/sbp2.c')
-rw-r--r-- | drivers/ieee1394/sbp2.c | 75 |
1 files changed, 4 insertions, 71 deletions
diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index e0c385a..e882cb9 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -1509,69 +1509,6 @@ static void sbp2_prep_command_orb_sg(struct sbp2_command_orb *orb, } } -static void sbp2_prep_command_orb_no_sg(struct sbp2_command_orb *orb, - struct sbp2_fwhost_info *hi, - struct sbp2_command_info *cmd, - struct scatterlist *sgpnt, - u32 orb_direction, - unsigned int scsi_request_bufflen, - void *scsi_request_buffer, - enum dma_data_direction dma_dir) -{ - cmd->dma_dir = dma_dir; - cmd->dma_size = scsi_request_bufflen; - cmd->dma_type = CMD_DMA_SINGLE; - cmd->cmd_dma = dma_map_single(hi->host->device.parent, - scsi_request_buffer, - cmd->dma_size, cmd->dma_dir); - orb->data_descriptor_hi = ORB_SET_NODE_ID(hi->host->node_id); - orb->misc |= ORB_SET_DIRECTION(orb_direction); - - /* handle case where we get a command w/o s/g enabled - * (but check for transfers larger than 64K) */ - if (scsi_request_bufflen <= SBP2_MAX_SG_ELEMENT_LENGTH) { - - orb->data_descriptor_lo = cmd->cmd_dma; - orb->misc |= ORB_SET_DATA_SIZE(scsi_request_bufflen); - - } else { - /* The buffer is too large. Turn this into page tables. */ - - struct sbp2_unrestricted_page_table *sg_element = - &cmd->scatter_gather_element[0]; - u32 sg_count, sg_len; - dma_addr_t sg_addr; - - orb->data_descriptor_lo = cmd->sge_dma; - orb->misc |= ORB_SET_PAGE_TABLE_PRESENT(0x1); - - /* fill out our SBP-2 page tables; split up the large buffer */ - sg_count = 0; - sg_len = scsi_request_bufflen; - sg_addr = cmd->cmd_dma; - while (sg_len) { - sg_element[sg_count].segment_base_lo = sg_addr; - if (sg_len > SBP2_MAX_SG_ELEMENT_LENGTH) { - sg_element[sg_count].length_segment_base_hi = - PAGE_TABLE_SET_SEGMENT_LENGTH(SBP2_MAX_SG_ELEMENT_LENGTH); - sg_addr += SBP2_MAX_SG_ELEMENT_LENGTH; - sg_len -= SBP2_MAX_SG_ELEMENT_LENGTH; - } else { - sg_element[sg_count].length_segment_base_hi = - PAGE_TABLE_SET_SEGMENT_LENGTH(sg_len); - sg_len = 0; - } - sg_count++; - } - - orb->misc |= ORB_SET_DATA_SIZE(sg_count); - - sbp2util_cpu_to_be32_buffer(sg_element, - (sizeof(struct sbp2_unrestricted_page_table)) * - sg_count); - } -} - static void sbp2_create_command_orb(struct sbp2_lu *lu, struct sbp2_command_info *cmd, unchar *scsi_cmd, @@ -1615,13 +1552,9 @@ static void sbp2_create_command_orb(struct sbp2_lu *lu, orb->data_descriptor_hi = 0x0; orb->data_descriptor_lo = 0x0; orb->misc |= ORB_SET_DIRECTION(1); - } else if (scsi_use_sg) + } else sbp2_prep_command_orb_sg(orb, hi, cmd, scsi_use_sg, sgpnt, orb_direction, dma_dir); - else - sbp2_prep_command_orb_no_sg(orb, hi, cmd, sgpnt, orb_direction, - scsi_request_bufflen, - scsi_request_buffer, dma_dir); sbp2util_cpu_to_be32_buffer(orb, sizeof(*orb)); @@ -1710,15 +1643,15 @@ static int sbp2_send_command(struct sbp2_lu *lu, struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) { unchar *scsi_cmd = (unchar *)SCpnt->cmnd; - unsigned int request_bufflen = SCpnt->request_bufflen; + unsigned int request_bufflen = scsi_bufflen(SCpnt); struct sbp2_command_info *cmd; cmd = sbp2util_allocate_command_orb(lu, SCpnt, done); if (!cmd) return -EIO; - sbp2_create_command_orb(lu, cmd, scsi_cmd, SCpnt->use_sg, - request_bufflen, SCpnt->request_buffer, + sbp2_create_command_orb(lu, cmd, scsi_cmd, scsi_sg_count(SCpnt), + request_bufflen, scsi_sglist(SCpnt), SCpnt->sc_data_direction); sbp2_link_orb_command(lu, cmd); |