diff options
Diffstat (limited to 'drivers/scsi/mesh.c')
| -rw-r--r-- | drivers/scsi/mesh.c | 46 |
1 files changed, 19 insertions, 27 deletions
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index e64d1a19d8d..651d09b08f2 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -421,7 +421,7 @@ static void mesh_start_cmd(struct mesh_state *ms, struct scsi_cmnd *cmd) for (i = 0; i < cmd->cmd_len; ++i) printk(" %x", cmd->cmnd[i]); printk(" use_sg=%d buffer=%p bufflen=%u\n", - cmd->use_sg, cmd->request_buffer, cmd->request_bufflen); + scsi_sg_count(cmd), scsi_sglist(cmd), scsi_bufflen(cmd)); } #endif if (ms->dma_started) @@ -602,13 +602,16 @@ static void mesh_done(struct mesh_state *ms, int start_next) cmd->result += (cmd->SCp.Message << 8); if (DEBUG_TARGET(cmd)) { printk(KERN_DEBUG "mesh_done: result = %x, data_ptr=%d, buflen=%d\n", - cmd->result, ms->data_ptr, cmd->request_bufflen); + cmd->result, ms->data_ptr, scsi_bufflen(cmd)); +#if 0 + /* needs to use sg? */ if ((cmd->cmnd[0] == 0 || cmd->cmnd[0] == 0x12 || cmd->cmnd[0] == 3) && cmd->request_buffer != 0) { unsigned char *b = cmd->request_buffer; printk(KERN_DEBUG "buffer = %x %x %x %x %x %x %x %x\n", b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]); } +#endif } cmd->SCp.this_residual -= ms->data_ptr; mesh_completed(ms, cmd); @@ -1265,15 +1268,18 @@ static void set_dma_cmds(struct mesh_state *ms, struct scsi_cmnd *cmd) dcmds = ms->dma_cmds; dtot = 0; if (cmd) { - cmd->SCp.this_residual = cmd->request_bufflen; - if (cmd->use_sg > 0) { - int nseg; + int nseg; + + cmd->SCp.this_residual = scsi_bufflen(cmd); + + nseg = scsi_dma_map(cmd); + BUG_ON(nseg < 0); + + if (nseg) { total = 0; - scl = (struct scatterlist *) cmd->request_buffer; off = ms->data_ptr; - nseg = pci_map_sg(ms->pdev, scl, cmd->use_sg, - cmd->sc_data_direction); - for (i = 0; i <nseg; ++i, ++scl) { + + scsi_for_each_sg(cmd, scl, nseg, i) { u32 dma_addr = sg_dma_address(scl); u32 dma_len = sg_dma_len(scl); @@ -1292,16 +1298,6 @@ static void set_dma_cmds(struct mesh_state *ms, struct scsi_cmnd *cmd) dtot += dma_len - off; off = 0; } - } else if (ms->data_ptr < cmd->request_bufflen) { - dtot = cmd->request_bufflen - ms->data_ptr; - if (dtot > 0xffff) - panic("mesh: transfer size >= 64k"); - st_le16(&dcmds->req_count, dtot); - /* XXX Use pci DMA API here ... */ - st_le32(&dcmds->phy_addr, - virt_to_phys(cmd->request_buffer) + ms->data_ptr); - dcmds->xfer_status = 0; - ++dcmds; } } if (dtot == 0) { @@ -1356,18 +1352,14 @@ static void halt_dma(struct mesh_state *ms) dumplog(ms, ms->conn_tgt); dumpslog(ms); #endif /* MESH_DBG */ - } else if (cmd && cmd->request_bufflen != 0 && - ms->data_ptr > cmd->request_bufflen) { + } else if (cmd && scsi_bufflen(cmd) && + ms->data_ptr > scsi_bufflen(cmd)) { printk(KERN_DEBUG "mesh: target %d overrun, " "data_ptr=%x total=%x goes_out=%d\n", - ms->conn_tgt, ms->data_ptr, cmd->request_bufflen, + ms->conn_tgt, ms->data_ptr, scsi_bufflen(cmd), ms->tgts[ms->conn_tgt].data_goes_out); } - if (cmd->use_sg != 0) { - struct scatterlist *sg; - sg = (struct scatterlist *)cmd->request_buffer; - pci_unmap_sg(ms->pdev, sg, cmd->use_sg, cmd->sc_data_direction); - } + scsi_dma_unmap(cmd); ms->dma_started = 0; } |