X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Fide-scsi.c;h=8f6b5bf580f6757fdcace40c5a41eb5359827d98;hb=refs%2Fheads%2Fvserver;hp=0cf0e4c7ac0c751645945efdf29d582a1ac3ef36;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 0cf0e4c7a..8f6b5bf58 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -34,7 +34,6 @@ #define IDESCSI_VERSION "0.92" #include -#include #include #include #include @@ -47,6 +46,7 @@ #include #include #include +#include #include #include @@ -109,7 +109,8 @@ typedef struct ide_scsi_obj { unsigned long log; /* log flags */ } idescsi_scsi_t; -static DECLARE_MUTEX(idescsi_ref_sem); +static DEFINE_MUTEX(idescsi_ref_mutex); +static int idescsi_nocd; /* Set by module param to skip cd */ #define ide_scsi_g(disk) \ container_of((disk)->private_data, struct ide_scsi_obj, driver) @@ -118,19 +119,19 @@ static struct ide_scsi_obj *ide_scsi_get(struct gendisk *disk) { struct ide_scsi_obj *scsi = NULL; - down(&idescsi_ref_sem); + mutex_lock(&idescsi_ref_mutex); scsi = ide_scsi_g(disk); if (scsi) scsi_host_get(scsi->host); - up(&idescsi_ref_sem); + mutex_unlock(&idescsi_ref_mutex); return scsi; } static void ide_scsi_put(struct ide_scsi_obj *scsi) { - down(&idescsi_ref_sem); + mutex_lock(&idescsi_ref_mutex); scsi_host_put(scsi->host); - up(&idescsi_ref_sem); + mutex_unlock(&idescsi_ref_mutex); } static inline idescsi_scsi_t *scsihost_to_idescsi(struct Scsi_Host *host) @@ -344,7 +345,7 @@ static int idescsi_check_condition(ide_drive_t *drive, struct request *failed_co pc->buffer = buf; pc->c[0] = REQUEST_SENSE; pc->c[4] = pc->request_transfer = pc->buffer_size = SCSI_SENSE_BUFFERSIZE; - rq->flags = REQ_SENSE; + rq->cmd_type = REQ_TYPE_SENSE; pc->timeout = jiffies + WAIT_READY; /* NOTE! Save the failed packet command in "rq->buffer" */ rq->buffer = (void *) failed_command->special; @@ -398,12 +399,12 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs) int errors = rq->errors; unsigned long flags; - if (!(rq->flags & (REQ_SPECIAL|REQ_SENSE))) { + if (!blk_special_request(rq) && !blk_sense_request(rq)) { ide_end_request(drive, uptodate, nrsecs); return 0; } ide_end_drive_cmd (drive, 0, 0); - if (rq->flags & REQ_SENSE) { + if (blk_sense_request(rq)) { idescsi_pc_t *opc = (idescsi_pc_t *) rq->buffer; if (log) { printk ("ide-scsi: %s: wrap up check %lu, rst = ", drive->name, opc->scsi_cmd->serial_number); @@ -517,7 +518,7 @@ static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive) /* No more interrupts */ if (test_bit(IDESCSI_LOG_CMD, &scsi->log)) printk (KERN_INFO "Packet command completed, %d bytes transferred\n", pc->actually_transferred); - local_irq_enable(); + local_irq_enable_in_hardirq(); if (status.b.check) rq->errors++; idescsi_end_request (drive, 1, 0); @@ -599,8 +600,7 @@ static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive) "issuing a packet command\n"); return ide_do_reset (drive); } - if (HWGROUP(drive)->handler != NULL) - BUG(); + BUG_ON(HWGROUP(drive)->handler != NULL); /* Set the interrupt routine */ ide_set_handler(drive, &idescsi_pc_intr, get_timeout(pc), idescsi_expiry); /* Send the actual packet */ @@ -690,8 +690,7 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc) set_bit(PC_DMA_OK, &pc->flags); if (test_bit(IDESCSI_DRQ_INTERRUPT, &scsi->flags)) { - if (HWGROUP(drive)->handler != NULL) - BUG(); + BUG_ON(HWGROUP(drive)->handler != NULL); ide_set_handler(drive, &idescsi_transfer_pc, get_timeout(pc), idescsi_expiry); /* Issue the packet command */ @@ -710,11 +709,11 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc) static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, sector_t block) { #if IDESCSI_DEBUG_LOG - printk (KERN_INFO "rq_status: %d, dev: %s, cmd: %x, errors: %d\n",rq->rq_status, rq->rq_disk->disk_name,rq->cmd[0],rq->errors); + printk (KERN_INFO "dev: %s, cmd: %x, errors: %d\n", rq->rq_disk->disk_name,rq->cmd[0],rq->errors); printk (KERN_INFO "sector: %ld, nr_sectors: %ld, current_nr_sectors: %d\n",rq->sector,rq->nr_sectors,rq->current_nr_sectors); #endif /* IDESCSI_DEBUG_LOG */ - if (rq->flags & (REQ_SPECIAL|REQ_SENSE)) { + if (blk_sense_request(rq) || blk_special_request(rq)) { return idescsi_issue_pc (drive, (idescsi_pc_t *) rq->special); } blk_dump_rq_flags(rq, "ide-scsi: unsup command"); @@ -940,7 +939,7 @@ static int idescsi_queue (struct scsi_cmnd *cmd, ide_init_drive_cmd (rq); rq->special = (char *) pc; - rq->flags = REQ_SPECIAL; + rq->cmd_type = REQ_TYPE_SPECIAL; spin_unlock_irq(host->host_lock); rq->rq_disk = scsi->disk; (void) ide_do_drive_cmd (drive, rq, ide_end); @@ -994,7 +993,7 @@ static int idescsi_eh_abort (struct scsi_cmnd *cmd) */ printk (KERN_ERR "ide-scsi: cmd aborted!\n"); - if (scsi->pc->rq->flags & REQ_SENSE) + if (blk_sense_request(scsi->pc->rq)) kfree(scsi->pc->buffer); kfree(scsi->pc->rq); kfree(scsi->pc); @@ -1044,7 +1043,7 @@ static int idescsi_eh_reset (struct scsi_cmnd *cmd) /* kill current request */ blkdev_dequeue_request(req); end_that_request_last(req, 0); - if (req->flags & REQ_SENSE) + if (blk_sense_request(req)) kfree(scsi->pc->buffer); kfree(scsi->pc); scsi->pc = NULL; @@ -1129,6 +1128,9 @@ static int ide_scsi_probe(ide_drive_t *drive) warned = 1; } + if (idescsi_nocd && drive->media == ide_cdrom) + return -ENODEV; + if (!strstr("ide-scsi", drive->driver_req) || !drive->present || drive->media == ide_disk || @@ -1189,6 +1191,8 @@ static void __exit exit_idescsi_module(void) driver_unregister(&idescsi_driver.gen_driver); } +module_param(idescsi_nocd, int, 0600); +MODULE_PARM_DESC(idescsi_nocd, "Disable handling of CD-ROMs so they may be driven by ide-cd"); module_init(init_idescsi_module); module_exit(exit_idescsi_module); MODULE_LICENSE("GPL");