diff options
Diffstat (limited to 'drivers/scsi/sun3_scsi.c')
| -rw-r--r-- | drivers/scsi/sun3_scsi.c | 47 |
1 files changed, 12 insertions, 35 deletions
diff --git a/drivers/scsi/sun3_scsi.c b/drivers/scsi/sun3_scsi.c index b9de487bbd31..3c4c07038948 100644 --- a/drivers/scsi/sun3_scsi.c +++ b/drivers/scsi/sun3_scsi.c @@ -36,14 +36,10 @@ #include <scsi/scsi_host.h> #include "sun3_scsi.h" -/* Definitions for the core NCR5380 driver. */ - -#define REAL_DMA -/* #define SUPPORT_TAGS */ /* minimum number of bytes to do dma on */ #define DMA_MIN_SIZE 129 -/* #define MAX_TAGS 32 */ +/* Definitions for the core NCR5380 driver. */ #define NCR5380_implementation_fields /* none */ @@ -55,14 +51,12 @@ #define NCR5380_abort sun3scsi_abort #define NCR5380_info sun3scsi_info -#define NCR5380_dma_read_setup(instance, data, count) \ - sun3scsi_dma_setup(instance, data, count, 0) -#define NCR5380_dma_write_setup(instance, data, count) \ - sun3scsi_dma_setup(instance, data, count, 1) +#define NCR5380_dma_recv_setup(instance, data, count) (count) +#define NCR5380_dma_send_setup(instance, data, count) (count) #define NCR5380_dma_residual(instance) \ sun3scsi_dma_residual(instance) #define NCR5380_dma_xfer_len(instance, cmd, phase) \ - sun3scsi_dma_xfer_len(cmd->SCp.this_residual, cmd, !((phase) & SR_IO)) + sun3scsi_dma_xfer_len(cmd->SCp.this_residual, cmd) #define NCR5380_acquire_dma_irq(instance) (1) #define NCR5380_release_dma_irq(instance) @@ -78,10 +72,6 @@ static int setup_cmd_per_lun = -1; module_param(setup_cmd_per_lun, int, 0); static int setup_sg_tablesize = -1; module_param(setup_sg_tablesize, int, 0); -#ifdef SUPPORT_TAGS -static int setup_use_tagged_queuing = -1; -module_param(setup_use_tagged_queuing, int, 0); -#endif static int setup_hostid = -1; module_param(setup_hostid, int, 0); @@ -263,14 +253,13 @@ static inline unsigned long sun3scsi_dma_residual(struct Scsi_Host *instance) return last_residual; } -static inline unsigned long sun3scsi_dma_xfer_len(unsigned long wanted, - struct scsi_cmnd *cmd, - int write_flag) +static inline unsigned long sun3scsi_dma_xfer_len(unsigned long wanted_len, + struct scsi_cmnd *cmd) { - if (cmd->request->cmd_type == REQ_TYPE_FS) - return wanted; - else + if (wanted_len < DMA_MIN_SIZE || cmd->request->cmd_type != REQ_TYPE_FS) return 0; + + return wanted_len; } static inline int sun3scsi_dma_start(unsigned long count, unsigned char *data) @@ -408,7 +397,7 @@ static int sun3scsi_dma_finish(int write_flag) } -#include "atari_NCR5380.c" +#include "NCR5380.c" #ifdef SUN3_SCSI_VME #define SUN3_SCSI_NAME "Sun3 NCR5380 VME SCSI" @@ -516,10 +505,6 @@ static int __init sun3_scsi_probe(struct platform_device *pdev) instance->io_port = (unsigned long)ioaddr; instance->irq = irq->start; -#ifdef SUPPORT_TAGS - host_flags |= setup_use_tagged_queuing > 0 ? FLAG_TAGGED_QUEUING : 0; -#endif - error = NCR5380_init(instance, host_flags); if (error) goto fail_init; @@ -527,15 +512,9 @@ static int __init sun3_scsi_probe(struct platform_device *pdev) error = request_irq(instance->irq, scsi_sun3_intr, 0, "NCR5380", instance); if (error) { -#ifdef REAL_DMA pr_err(PFX "scsi%d: IRQ %d not free, bailing out\n", instance->host_no, instance->irq); goto fail_irq; -#else - pr_warn(PFX "scsi%d: IRQ %d not free, interrupts disabled\n", - instance->host_no, instance->irq); - instance->irq = NO_IRQ; -#endif } dregs->csr = 0; @@ -565,8 +544,7 @@ static int __init sun3_scsi_probe(struct platform_device *pdev) return 0; fail_host: - if (instance->irq != NO_IRQ) - free_irq(instance->irq, instance); + free_irq(instance->irq, instance); fail_irq: NCR5380_exit(instance); fail_init: @@ -583,8 +561,7 @@ static int __exit sun3_scsi_remove(struct platform_device *pdev) struct Scsi_Host *instance = platform_get_drvdata(pdev); scsi_remove_host(instance); - if (instance->irq != NO_IRQ) - free_irq(instance->irq, instance); + free_irq(instance->irq, instance); NCR5380_exit(instance); scsi_host_put(instance); if (udc_regs) |