X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fscsi%2Fmesh.c;h=11aa917629acda4924a7db48e2f7e5bd5254347f;hb=171ac6ae94e31d0fcb5ae922efd4a77a7e48b4e5;hp=f852421002ef7fb44de3f3d6046e01b631416cf5;hpb=e8222502ee6157e2713da9e0792c21f4ad458d50;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index f852421..11aa917 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -18,7 +18,6 @@ * - retry arbitration if lost (unless higher levels do this for us) * - power down the chip when no device is detected */ -#include #include #include #include @@ -186,7 +185,7 @@ struct mesh_state { * Driver is too messy, we need a few prototypes... */ static void mesh_done(struct mesh_state *ms, int start_next); -static void mesh_interrupt(int irq, void *dev_id, struct pt_regs *ptregs); +static void mesh_interrupt(struct mesh_state *ms); static void cmd_complete(struct mesh_state *ms); static void set_dma_cmds(struct mesh_state *ms, struct scsi_cmnd *cmd); static void halt_dma(struct mesh_state *ms); @@ -422,7 +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) @@ -467,7 +466,7 @@ static void mesh_start_cmd(struct mesh_state *ms, struct scsi_cmnd *cmd) dlog(ms, "intr b4 arb, intr/exc/err/fc=%.8x", MKWORD(mr->interrupt, mr->exception, mr->error, mr->fifo_count)); - mesh_interrupt(0, (void *)ms, NULL); + mesh_interrupt(ms); if (ms->phase != arbitrating) return; } @@ -505,7 +504,7 @@ static void mesh_start_cmd(struct mesh_state *ms, struct scsi_cmnd *cmd) dlog(ms, "intr after disresel, intr/exc/err/fc=%.8x", MKWORD(mr->interrupt, mr->exception, mr->error, mr->fifo_count)); - mesh_interrupt(0, (void *)ms, NULL); + mesh_interrupt(ms); if (ms->phase != arbitrating) return; dlog(ms, "after intr after disresel, intr/exc/err/fc=%.8x", @@ -603,13 +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); @@ -1016,13 +1018,14 @@ static void handle_reset(struct mesh_state *ms) out_8(&mr->sequence, SEQ_ENBRESEL); } -static irqreturn_t do_mesh_interrupt(int irq, void *dev_id, struct pt_regs *ptregs) +static irqreturn_t do_mesh_interrupt(int irq, void *dev_id) { unsigned long flags; - struct Scsi_Host *dev = ((struct mesh_state *)dev_id)->host; + struct mesh_state *ms = dev_id; + struct Scsi_Host *dev = ms->host; spin_lock_irqsave(dev->host_lock, flags); - mesh_interrupt(irq, dev_id, ptregs); + mesh_interrupt(ms); spin_unlock_irqrestore(dev->host_lock, flags); return IRQ_HANDLED; } @@ -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->buffer; off = ms->data_ptr; - nseg = pci_map_sg(ms->pdev, scl, cmd->use_sg, - cmd->sc_data_direction); - for (i = 0; i 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; } @@ -1662,9 +1654,8 @@ static int mesh_queue(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) * handler (do_mesh_interrupt) or by other functions in * exceptional circumstances */ -static void mesh_interrupt(int irq, void *dev_id, struct pt_regs *ptregs) +static void mesh_interrupt(struct mesh_state *ms) { - struct mesh_state *ms = (struct mesh_state *) dev_id; volatile struct mesh_regs __iomem *mr = ms->mesh; int intr; @@ -1757,16 +1748,24 @@ static void set_mesh_power(struct mesh_state *ms, int state) pmac_call_feature(PMAC_FTR_MESH_ENABLE, macio_get_of_node(ms->mdev), 0, 0); msleep(10); } -} +} #ifdef CONFIG_PM -static int mesh_suspend(struct macio_dev *mdev, pm_message_t state) +static int mesh_suspend(struct macio_dev *mdev, pm_message_t mesg) { struct mesh_state *ms = (struct mesh_state *)macio_get_drvdata(mdev); unsigned long flags; - if (state.event == mdev->ofdev.dev.power.power_state.event || state.event < 2) + switch (mesg.event) { + case PM_EVENT_SUSPEND: + case PM_EVENT_HIBERNATE: + case PM_EVENT_FREEZE: + break; + default: + return 0; + } + if (ms->phase == sleeping) return 0; scsi_block_requests(ms->host); @@ -1781,8 +1780,6 @@ static int mesh_suspend(struct macio_dev *mdev, pm_message_t state) disable_irq(ms->meshintr); set_mesh_power(ms, 0); - mdev->ofdev.dev.power.power_state = state; - return 0; } @@ -1791,7 +1788,7 @@ static int mesh_resume(struct macio_dev *mdev) struct mesh_state *ms = (struct mesh_state *)macio_get_drvdata(mdev); unsigned long flags; - if (mdev->ofdev.dev.power.power_state.event == PM_EVENT_ON) + if (ms->phase != sleeping) return 0; set_mesh_power(ms, 1); @@ -1802,8 +1799,6 @@ static int mesh_resume(struct macio_dev *mdev) enable_irq(ms->meshintr); scsi_unblock_requests(ms->host); - mdev->ofdev.dev.power.power_state.event = PM_EVENT_ON; - return 0; } @@ -1851,7 +1846,8 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) { struct device_node *mesh = macio_get_of_node(mdev); struct pci_dev* pdev = macio_get_pci_dev(mdev); - int tgt, *cfp, minper; + int tgt, minper; + const int *cfp; struct mesh_state *ms; struct Scsi_Host *mesh_host; void *dma_cmd_space; @@ -1940,7 +1936,7 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) ms->tgts[tgt].current_req = NULL; } - if ((cfp = (int *) get_property(mesh, "clock-frequency", NULL))) + if ((cfp = of_get_property(mesh, "clock-frequency", NULL))) ms->clk_freq = *cfp; else { printk(KERN_INFO "mesh: assuming 50MHz clock frequency\n");