X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Flibata-scsi.c;h=234e1cadb070db1b5a26dcba693a1d884d5281d4;hb=2719736779da2c7fbb17d3de16c817b429bfeb9c;hp=dd954a23b357a17ab4870b14954039b2e472dfba;hpb=2d2020242d14dc8caf83d7682d91368cff64290c;p=linux-2.6 diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index dd954a23b3..234e1cadb0 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -52,6 +53,7 @@ typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc, const u8 *scsicmd); static struct ata_device * ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev); +enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd); #define RW_RECOVERY_MPAGE 0x1 #define RW_RECOVERY_MPAGE_LEN 12 @@ -92,6 +94,14 @@ static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = { 0, 30 /* extended self test time, see 05-359r1 */ }; +/* + * libata transport template. libata doesn't do real transport stuff. + * It just needs the eh_timed_out hook. + */ +struct scsi_transport_template ata_scsi_transport_template = { + .eh_timed_out = ata_scsi_timed_out, +}; + static void ata_scsi_invalid_field(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) @@ -246,7 +256,7 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) scsi_cmd[14] = args[0]; /* Good values for timeout and retries? Values below - from scsi_ioctl_send_command() for default case... */ + from scsi_ioctl_send_command() for default case... */ if (scsi_execute_req(scsidev, scsi_cmd, DMA_NONE, NULL, 0, &sshdr, (10*HZ), 5)) rc = -EIO; @@ -257,20 +267,8 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) { - struct ata_port *ap; - struct ata_device *dev; int val = -EINVAL, rc = -EINVAL; - ap = (struct ata_port *) &scsidev->host->hostdata[0]; - if (!ap) - goto out; - - dev = ata_scsi_find_dev(ap, scsidev); - if (!dev) { - rc = -ENODEV; - goto out; - } - switch (cmd) { case ATA_IOC_GET_IO32: val = 0; @@ -299,7 +297,6 @@ int ata_scsi_ioctl(struct scsi_device *scsidev, int cmd, void __user *arg) break; } -out: return rc; } @@ -404,12 +401,12 @@ int ata_scsi_device_resume(struct scsi_device *sdev) return ata_device_resume(ap, dev); } -int ata_scsi_device_suspend(struct scsi_device *sdev) +int ata_scsi_device_suspend(struct scsi_device *sdev, pm_message_t state) { struct ata_port *ap = (struct ata_port *) &sdev->host->hostdata[0]; struct ata_device *dev = &ap->device[sdev->id]; - return ata_device_suspend(ap, dev); + return ata_device_suspend(ap, dev, state); } /** @@ -428,7 +425,7 @@ int ata_scsi_device_suspend(struct scsi_device *sdev) * LOCKING: * spin_lock_irqsave(host_set lock) */ -void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, +void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, u8 *ascq) { int i; @@ -485,7 +482,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, /* Look for drv_err */ for (i = 0; sense_table[i][0] != 0xFF; i++) { /* Look for best matches first */ - if ((sense_table[i][0] & drv_err) == + if ((sense_table[i][0] & drv_err) == sense_table[i][0]) { *sk = sense_table[i][1]; *asc = sense_table[i][2]; @@ -508,7 +505,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, } } /* No error? Undecoded? */ - printk(KERN_WARNING "ata%u: no sense translation for status: 0x%02x\n", + printk(KERN_WARNING "ata%u: no sense translation for status: 0x%02x\n", id, drv_stat); /* We need a sensible error return here, which is tricky, and one @@ -782,20 +779,15 @@ enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd) int ata_scsi_error(struct Scsi_Host *host) { - struct ata_port *ap; - unsigned long flags; + struct ata_port *ap = (struct ata_port *)&host->hostdata[0]; DPRINTK("ENTER\n"); - ap = (struct ata_port *) &host->hostdata[0]; + /* synchronize with IRQ handler and port task */ + spin_unlock_wait(&ap->host_set->lock); + ata_port_flush_task(ap); - spin_lock_irqsave(&ap->host_set->lock, flags); - WARN_ON(ap->flags & ATA_FLAG_IN_EH); - ap->flags |= ATA_FLAG_IN_EH; WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL); - spin_unlock_irqrestore(&ap->host_set->lock, flags); - - ata_port_flush_task(ap); ap->ops->eng_timeout(ap); @@ -803,10 +795,6 @@ int ata_scsi_error(struct Scsi_Host *host) scsi_eh_flush_done_q(&ap->eh_done_q); - spin_lock_irqsave(&ap->host_set->lock, flags); - ap->flags &= ~ATA_FLAG_IN_EH; - spin_unlock_irqrestore(&ap->host_set->lock, flags); - DPRINTK("EXIT\n"); return 0; } @@ -1140,14 +1128,14 @@ static unsigned int ata_scsi_verify_xlat(struct ata_queued_cmd *qc, const u8 *sc DPRINTK("block %u track %u cyl %u head %u sect %u\n", (u32)block, track, cyl, head, sect); - - /* Check whether the converted CHS can fit. - Cylinder: 0-65535 + + /* Check whether the converted CHS can fit. + Cylinder: 0-65535 Head: 0-15 Sector: 1-255*/ - if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect)) + if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect)) goto out_of_range; - + tf->command = ATA_CMD_VERIFY; tf->nsect = n_block & 0xff; /* Sector count 0 means 256 sectors */ tf->lbal = sect; @@ -1200,6 +1188,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm u64 block; u32 n_block; + qc->flags |= ATA_QCFLAG_IO; tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; if (scsicmd[0] == WRITE_10 || scsicmd[0] == WRITE_6 || @@ -1279,7 +1268,7 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm tf->lbal = block & 0xff; tf->device |= ATA_LBA; - } else { + } else { /* CHS */ u32 sect, head, cyl, track; @@ -1299,8 +1288,8 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm DPRINTK("block %u track %u cyl %u head %u sect %u\n", (u32)block, track, cyl, head, sect); - /* Check whether the converted CHS can fit. - Cylinder: 0-65535 + /* Check whether the converted CHS can fit. + Cylinder: 0-65535 Head: 0-15 Sector: 1-255*/ if ((cyl >> 16) || (head >> 4) || (sect >> 8) || (!sect)) @@ -1434,9 +1423,7 @@ static void ata_scsi_translate(struct ata_port *ap, struct ata_device *dev, goto early_finish; /* select device, send command to hardware */ - qc->err_mask = ata_qc_issue(qc); - if (qc->err_mask) - ata_qc_complete(qc); + ata_qc_issue(qc); VPRINTK("EXIT\n"); return; @@ -1687,7 +1674,7 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, if (buflen > (ATA_SERNO_LEN + num + 3)) { /* piv=0, assoc=lu, code_set=ACSII, designator=vendor */ - rbuf[num + 0] = 2; + rbuf[num + 0] = 2; rbuf[num + 3] = ATA_SERNO_LEN; num += 4; ata_id_string(args->id, (unsigned char *) rbuf + num, @@ -1697,8 +1684,8 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf, if (buflen > (sat_model_serial_desc_len + num + 3)) { /* SAT defined lu model and serial numbers descriptor */ /* piv=0, assoc=lu, code_set=ACSII, designator=t10 vendor id */ - rbuf[num + 0] = 2; - rbuf[num + 1] = 1; + rbuf[num + 0] = 2; + rbuf[num + 1] = 1; rbuf[num + 3] = sat_model_serial_desc_len; num += 4; memcpy(rbuf + num, "ATA ", 8); @@ -2202,9 +2189,7 @@ static void atapi_request_sense(struct ata_queued_cmd *qc) qc->complete_fn = atapi_sense_complete; - qc->err_mask = ata_qc_issue(qc); - if (qc->err_mask) - ata_qc_complete(qc); + ata_qc_issue(qc); DPRINTK("EXIT\n"); } @@ -2356,7 +2341,7 @@ ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev) (scsidev->lun != 0))) return NULL; - if (unlikely(!ata_dev_present(dev))) + if (unlikely(!ata_dev_enabled(dev))) return NULL; if (!atapi_enabled || (ap->flags & ATA_FLAG_NO_ATAPI)) { @@ -2587,6 +2572,21 @@ static inline void ata_scsi_dump_cdb(struct ata_port *ap, #endif } +static inline void __ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), + struct ata_port *ap, struct ata_device *dev) +{ + if (dev->class == ATA_DEV_ATA) { + ata_xlat_func_t xlat_func = ata_get_xlat_func(dev, + cmd->cmnd[0]); + + if (xlat_func) + ata_scsi_translate(ap, dev, cmd, done, xlat_func); + else + ata_scsi_simulate(ap, dev, cmd, done); + } else + ata_scsi_translate(ap, dev, cmd, done, atapi_xlat); +} + /** * ata_scsi_queuecmd - Issue SCSI cdb to libata-managed device * @cmd: SCSI command to be sent @@ -2621,24 +2621,13 @@ int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *)) ata_scsi_dump_cdb(ap, cmd); dev = ata_scsi_find_dev(ap, scsidev); - if (unlikely(!dev)) { + if (likely(dev)) + __ata_scsi_queuecmd(cmd, done, ap, dev); + else { cmd->result = (DID_BAD_TARGET << 16); done(cmd); - goto out_unlock; } - if (dev->class == ATA_DEV_ATA) { - ata_xlat_func_t xlat_func = ata_get_xlat_func(dev, - cmd->cmnd[0]); - - if (xlat_func) - ata_scsi_translate(ap, dev, cmd, done, xlat_func); - else - ata_scsi_simulate(ap, dev, cmd, done); - } else - ata_scsi_translate(ap, dev, cmd, done, atapi_xlat); - -out_unlock: spin_unlock(&ap->host_set->lock); spin_lock(shost->host_lock); return 0; @@ -2740,13 +2729,13 @@ void ata_scsi_scan_host(struct ata_port *ap) struct ata_device *dev; unsigned int i; - if (ap->flags & ATA_FLAG_PORT_DISABLED) + if (ap->flags & ATA_FLAG_DISABLED) return; for (i = 0; i < ATA_MAX_DEVICES; i++) { dev = &ap->device[i]; - if (ata_dev_present(dev)) + if (ata_dev_enabled(dev)) scsi_scan_target(&ap->host->shost_gendev, 0, i, 0, 0); } }