diff options
Diffstat (limited to 'drivers/scsi/fdomain.c')
| -rw-r--r-- | drivers/scsi/fdomain.c | 64 |
1 files changed, 36 insertions, 28 deletions
diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c index 9159b4057c5d..444eac9b2466 100644 --- a/drivers/scsi/fdomain.c +++ b/drivers/scsi/fdomain.c @@ -115,6 +115,11 @@ struct fdomain { struct work_struct work; }; +static struct scsi_pointer *fdomain_scsi_pointer(struct scsi_cmnd *cmd) +{ + return scsi_cmd_priv(cmd); +} + static inline void fdomain_make_bus_idle(struct fdomain *fd) { outb(0, fd->base + REG_BCTL); @@ -263,20 +268,21 @@ static void fdomain_work(struct work_struct *work) struct Scsi_Host *sh = container_of((void *)fd, struct Scsi_Host, hostdata); struct scsi_cmnd *cmd = fd->cur_cmd; + struct scsi_pointer *scsi_pointer = fdomain_scsi_pointer(cmd); unsigned long flags; int status; int done = 0; spin_lock_irqsave(sh->host_lock, flags); - if (cmd->SCp.phase & in_arbitration) { + if (scsi_pointer->phase & in_arbitration) { status = inb(fd->base + REG_ASTAT); if (!(status & ASTAT_ARB)) { set_host_byte(cmd, DID_BUS_BUSY); fdomain_finish_cmd(fd); goto out; } - cmd->SCp.phase = in_selection; + scsi_pointer->phase = in_selection; outb(ICTL_SEL | FIFO_COUNT, fd->base + REG_ICTL); outb(BCTL_BUSEN | BCTL_SEL, fd->base + REG_BCTL); @@ -285,7 +291,7 @@ static void fdomain_work(struct work_struct *work) /* Stop arbitration and enable parity */ outb(ACTL_IRQEN | PARITY_MASK, fd->base + REG_ACTL); goto out; - } else if (cmd->SCp.phase & in_selection) { + } else if (scsi_pointer->phase & in_selection) { status = inb(fd->base + REG_BSTAT); if (!(status & BSTAT_BSY)) { /* Try again, for slow devices */ @@ -297,75 +303,75 @@ static void fdomain_work(struct work_struct *work) /* Stop arbitration and enable parity */ outb(ACTL_IRQEN | PARITY_MASK, fd->base + REG_ACTL); } - cmd->SCp.phase = in_other; + scsi_pointer->phase = in_other; outb(ICTL_FIFO | ICTL_REQ | FIFO_COUNT, fd->base + REG_ICTL); outb(BCTL_BUSEN, fd->base + REG_BCTL); goto out; } - /* cur_cmd->SCp.phase == in_other: this is the body of the routine */ + /* fdomain_scsi_pointer(cur_cmd)->phase == in_other: this is the body of the routine */ status = inb(fd->base + REG_BSTAT); if (status & BSTAT_REQ) { switch (status & (BSTAT_MSG | BSTAT_CMD | BSTAT_IO)) { case BSTAT_CMD: /* COMMAND OUT */ - outb(cmd->cmnd[cmd->SCp.sent_command++], + outb(cmd->cmnd[scsi_pointer->sent_command++], fd->base + REG_SCSI_DATA); break; case 0: /* DATA OUT -- tmc18c50/tmc18c30 only */ - if (fd->chip != tmc1800 && !cmd->SCp.have_data_in) { - cmd->SCp.have_data_in = -1; + if (fd->chip != tmc1800 && !scsi_pointer->have_data_in) { + scsi_pointer->have_data_in = -1; outb(ACTL_IRQEN | ACTL_FIFOWR | ACTL_FIFOEN | PARITY_MASK, fd->base + REG_ACTL); } break; case BSTAT_IO: /* DATA IN -- tmc18c50/tmc18c30 only */ - if (fd->chip != tmc1800 && !cmd->SCp.have_data_in) { - cmd->SCp.have_data_in = 1; + if (fd->chip != tmc1800 && !scsi_pointer->have_data_in) { + scsi_pointer->have_data_in = 1; outb(ACTL_IRQEN | ACTL_FIFOEN | PARITY_MASK, fd->base + REG_ACTL); } break; case BSTAT_CMD | BSTAT_IO: /* STATUS IN */ - cmd->SCp.Status = inb(fd->base + REG_SCSI_DATA); + scsi_pointer->Status = inb(fd->base + REG_SCSI_DATA); break; case BSTAT_MSG | BSTAT_CMD: /* MESSAGE OUT */ outb(MESSAGE_REJECT, fd->base + REG_SCSI_DATA); break; case BSTAT_MSG | BSTAT_CMD | BSTAT_IO: /* MESSAGE IN */ - cmd->SCp.Message = inb(fd->base + REG_SCSI_DATA); - if (cmd->SCp.Message == COMMAND_COMPLETE) + scsi_pointer->Message = inb(fd->base + REG_SCSI_DATA); + if (scsi_pointer->Message == COMMAND_COMPLETE) ++done; break; } } - if (fd->chip == tmc1800 && !cmd->SCp.have_data_in && - cmd->SCp.sent_command >= cmd->cmd_len) { + if (fd->chip == tmc1800 && !scsi_pointer->have_data_in && + scsi_pointer->sent_command >= cmd->cmd_len) { if (cmd->sc_data_direction == DMA_TO_DEVICE) { - cmd->SCp.have_data_in = -1; + scsi_pointer->have_data_in = -1; outb(ACTL_IRQEN | ACTL_FIFOWR | ACTL_FIFOEN | PARITY_MASK, fd->base + REG_ACTL); } else { - cmd->SCp.have_data_in = 1; + scsi_pointer->have_data_in = 1; outb(ACTL_IRQEN | ACTL_FIFOEN | PARITY_MASK, fd->base + REG_ACTL); } } - if (cmd->SCp.have_data_in == -1) /* DATA OUT */ + if (scsi_pointer->have_data_in == -1) /* DATA OUT */ fdomain_write_data(cmd); - if (cmd->SCp.have_data_in == 1) /* DATA IN */ + if (scsi_pointer->have_data_in == 1) /* DATA IN */ fdomain_read_data(cmd); if (done) { - set_status_byte(cmd, cmd->SCp.Status); + set_status_byte(cmd, scsi_pointer->Status); set_host_byte(cmd, DID_OK); - scsi_msg_to_host_byte(cmd, cmd->SCp.Message); + scsi_msg_to_host_byte(cmd, scsi_pointer->Message); fdomain_finish_cmd(fd); } else { - if (cmd->SCp.phase & disconnect) { + if (scsi_pointer->phase & disconnect) { outb(ICTL_FIFO | ICTL_SEL | ICTL_REQ | FIFO_COUNT, fd->base + REG_ICTL); outb(0, fd->base + REG_BCTL); @@ -398,14 +404,15 @@ static irqreturn_t fdomain_irq(int irq, void *dev_id) static int fdomain_queue(struct Scsi_Host *sh, struct scsi_cmnd *cmd) { + struct scsi_pointer *scsi_pointer = fdomain_scsi_pointer(cmd); struct fdomain *fd = shost_priv(cmd->device->host); unsigned long flags; - cmd->SCp.Status = 0; - cmd->SCp.Message = 0; - cmd->SCp.have_data_in = 0; - cmd->SCp.sent_command = 0; - cmd->SCp.phase = in_arbitration; + scsi_pointer->Status = 0; + scsi_pointer->Message = 0; + scsi_pointer->have_data_in = 0; + scsi_pointer->sent_command = 0; + scsi_pointer->phase = in_arbitration; scsi_set_resid(cmd, scsi_bufflen(cmd)); spin_lock_irqsave(sh->host_lock, flags); @@ -440,7 +447,7 @@ static int fdomain_abort(struct scsi_cmnd *cmd) spin_lock_irqsave(sh->host_lock, flags); fdomain_make_bus_idle(fd); - fd->cur_cmd->SCp.phase |= aborted; + fdomain_scsi_pointer(fd->cur_cmd)->phase |= aborted; /* Aborts are not done well. . . */ set_host_byte(fd->cur_cmd, DID_ABORT); @@ -501,6 +508,7 @@ static struct scsi_host_template fdomain_template = { .this_id = 7, .sg_tablesize = 64, .dma_boundary = PAGE_SIZE - 1, + .cmd_size = sizeof(struct scsi_pointer), }; struct Scsi_Host *fdomain_create(int base, int irq, int this_id, |