diff options
Diffstat (limited to 'drivers/scsi/qlogicpti.c')
| -rw-r--r-- | drivers/scsi/qlogicpti.c | 171 |
1 files changed, 26 insertions, 145 deletions
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index 594887205b0..e93f80316a1 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -310,8 +310,6 @@ static inline void qlogicpti_set_hostdev_defaults(struct qlogicpti *qpti) } qpti->dev_param[i].device_enable = 1; } - /* this is very important to set! */ - qpti->sbits = 1 << qpti->scsi_id; } static int qlogicpti_reset_hardware(struct Scsi_Host *host) @@ -951,153 +949,35 @@ static inline void update_can_queue(struct Scsi_Host *host, u_int in_ptr, u_int host->sg_tablesize = QLOGICPTI_MAX_SG(num_free); } -static unsigned int scsi_rbuf_get(struct scsi_cmnd *cmd, unsigned char **buf_out) +static int qlogicpti_slave_configure(struct scsi_device *sdev) { - unsigned char *buf; - unsigned int buflen; - - if (cmd->use_sg) { - struct scatterlist *sg; + struct qlogicpti *qpti = shost_priv(sdev->host); + int tgt = sdev->id; + u_short param[6]; - sg = (struct scatterlist *) cmd->request_buffer; - buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset; - buflen = sg->length; + /* tags handled in midlayer */ + /* enable sync mode? */ + if (sdev->sdtr) { + qpti->dev_param[tgt].device_flags |= 0x10; } else { - buf = cmd->request_buffer; - buflen = cmd->request_bufflen; + qpti->dev_param[tgt].synchronous_offset = 0; + qpti->dev_param[tgt].synchronous_period = 0; } - - *buf_out = buf; - return buflen; -} - -static void scsi_rbuf_put(struct scsi_cmnd *cmd, unsigned char *buf) -{ - if (cmd->use_sg) { - struct scatterlist *sg; - - sg = (struct scatterlist *) cmd->request_buffer; - kunmap_atomic(buf - sg->offset, KM_IRQ0); - } -} - -/* - * Until we scan the entire bus with inquiries, go throught this fella... - */ -static void ourdone(struct scsi_cmnd *Cmnd) -{ - struct qlogicpti *qpti = (struct qlogicpti *) Cmnd->device->host->hostdata; - int tgt = Cmnd->device->id; - void (*done) (struct scsi_cmnd *); - - /* This grot added by DaveM, blame him for ugliness. - * The issue is that in the 2.3.x driver we use the - * host_scribble portion of the scsi command as a - * completion linked list at interrupt service time, - * so we have to store the done function pointer elsewhere. - */ - done = (void (*)(struct scsi_cmnd *)) - (((unsigned long) Cmnd->SCp.Message) -#ifdef __sparc_v9__ - | ((unsigned long) Cmnd->SCp.Status << 32UL) -#endif - ); - - if ((qpti->sbits & (1 << tgt)) == 0) { - int ok = host_byte(Cmnd->result) == DID_OK; - if (Cmnd->cmnd[0] == 0x12 && ok) { - unsigned char *iqd; - unsigned int iqd_len; - - iqd_len = scsi_rbuf_get(Cmnd, &iqd); - - /* tags handled in midlayer */ - /* enable sync mode? */ - if (iqd[7] & 0x10) { - qpti->dev_param[tgt].device_flags |= 0x10; - } else { - qpti->dev_param[tgt].synchronous_offset = 0; - qpti->dev_param[tgt].synchronous_period = 0; - } - /* are we wide capable? */ - if (iqd[7] & 0x20) { - qpti->dev_param[tgt].device_flags |= 0x20; - } - - scsi_rbuf_put(Cmnd, iqd); - - qpti->sbits |= (1 << tgt); - } else if (!ok) { - qpti->sbits |= (1 << tgt); - } - } - done(Cmnd); -} - -static int qlogicpti_queuecommand(struct scsi_cmnd *Cmnd, void (*done)(struct scsi_cmnd *)); - -static int qlogicpti_queuecommand_slow(struct scsi_cmnd *Cmnd, - void (*done)(struct scsi_cmnd *)) -{ - struct qlogicpti *qpti = (struct qlogicpti *) Cmnd->device->host->hostdata; - - /* - * done checking this host adapter? - * If not, then rewrite the command - * to finish through ourdone so we - * can peek at Inquiry data results. - */ - if (qpti->sbits && qpti->sbits != 0xffff) { - /* See above about in ourdone this ugliness... */ - Cmnd->SCp.Message = ((unsigned long)done) & 0xffffffff; -#ifdef CONFIG_SPARC64 - Cmnd->SCp.Status = ((unsigned long)done >> 32UL) & 0xffffffff; -#endif - return qlogicpti_queuecommand(Cmnd, ourdone); - } - - /* - * We've peeked at all targets for this bus- time - * to set parameters for devices for real now. - */ - if (qpti->sbits == 0xffff) { - int i; - for(i = 0; i < MAX_TARGETS; i++) { - u_short param[6]; - param[0] = MBOX_SET_TARGET_PARAMS; - param[1] = (i << 8); - param[2] = (qpti->dev_param[i].device_flags << 8); - if (qpti->dev_param[i].device_flags & 0x10) { - param[3] = (qpti->dev_param[i].synchronous_offset << 8) | - qpti->dev_param[i].synchronous_period; - } else { - param[3] = 0; - } - (void) qlogicpti_mbox_command(qpti, param, 0); - } - /* - * set to zero so any traverse through ourdone - * doesn't start the whole process again, - */ - qpti->sbits = 0; - } - - /* check to see if we're done with all adapters... */ - for (qpti = qptichain; qpti != NULL; qpti = qpti->next) { - if (qpti->sbits) { - break; - } + /* are we wide capable? */ + if (sdev->wdtr) + qpti->dev_param[tgt].device_flags |= 0x20; + + param[0] = MBOX_SET_TARGET_PARAMS; + param[1] = (tgt << 8); + param[2] = (qpti->dev_param[tgt].device_flags << 8); + if (qpti->dev_param[tgt].device_flags & 0x10) { + param[3] = (qpti->dev_param[tgt].synchronous_offset << 8) | + qpti->dev_param[tgt].synchronous_period; + } else { + param[3] = 0; } - - /* - * if we hit the end of the chain w/o finding adapters still - * capability-configuring, then we're done with all adapters - * and can rock on.. - */ - if (qpti == NULL) - Cmnd->device->host->hostt->queuecommand = qlogicpti_queuecommand; - - return qlogicpti_queuecommand(Cmnd, done); + qlogicpti_mbox_command(qpti, param, 0); + return 0; } /* @@ -1390,7 +1270,8 @@ static struct scsi_host_template qpti_template = { .module = THIS_MODULE, .name = "qlogicpti", .info = qlogicpti_info, - .queuecommand = qlogicpti_queuecommand_slow, + .queuecommand = qlogicpti_queuecommand, + .slave_configure = qlogicpti_slave_configure, .eh_abort_handler = qlogicpti_abort, .eh_bus_reset_handler = qlogicpti_reset, .can_queue = QLOGICPTI_REQ_QUEUE_LEN, |