Adds support to attach SATA devices to ipr SAS adapters. Signed-off-by: Brian King <brking@xxxxxxxxxx> --- libata-dev-bjking1/drivers/scsi/Kconfig | 1 libata-dev-bjking1/drivers/scsi/Makefile | 2 libata-dev-bjking1/drivers/scsi/ipr.c | 569 ++++++++++++++++++++++++++++++- libata-dev-bjking1/drivers/scsi/ipr.h | 91 ++++ 4 files changed, 642 insertions(+), 21 deletions(-) diff -puN drivers/scsi/ipr.h~ipr_sata_with_libata_changes drivers/scsi/ipr.h --- libata-dev/drivers/scsi/ipr.h~ipr_sata_with_libata_changes 2006-02-17 14:19:59.000000000 -0600 +++ libata-dev-bjking1/drivers/scsi/ipr.h 2006-02-17 14:26:54.000000000 -0600 @@ -36,8 +36,8 @@ /* * Literals */ -#define IPR_DRIVER_VERSION "2.1.2" -#define IPR_DRIVER_DATE "(February 8, 2006)" +#define IPR_DRIVER_VERSION "2.2.0" +#define IPR_DRIVER_DATE "(February 14, 2006)" /* * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding @@ -45,6 +45,7 @@ * This can be adjusted at runtime through sysfs device attributes. */ #define IPR_MAX_CMD_PER_LUN 6 +#define IPR_MAX_CMD_PER_ATA_LUN 1 /* * IPR_NUM_BASE_CMD_BLKS: This defines the maximum number of @@ -145,6 +146,7 @@ #define IPR_LUN_RESET 0x40 #define IPR_TARGET_RESET 0x20 #define IPR_BUS_RESET 0x10 +#define IPR_ATA_PHY_RESET 0x80 #define IPR_ID_HOST_RR_Q 0xC4 #define IPR_QUERY_IOA_CONFIG 0xC5 #define IPR_CANCEL_ALL_REQUESTS 0xCE @@ -295,7 +297,11 @@ struct ipr_std_inq_data { }__attribute__ ((packed)); struct ipr_config_table_entry { - u8 service_level; + u8 proto; +#define IPR_PROTO_SATA 0x02 +#define IPR_PROTO_SATA_ATAPI 0x03 +#define IPR_PROTO_SAS_STP 0x06 +#define IPR_PROTO_SAS_STP_ATAPI 0x07 u8 array_id; u8 flags; #define IPR_IS_IOA_RESOURCE 0x80 @@ -307,6 +313,7 @@ struct ipr_config_table_entry { #define IPR_SUBTYPE_AF_DASD 0 #define IPR_SUBTYPE_GENERIC_SCSI 1 #define IPR_SUBTYPE_VOLUME_SET 2 +#define IPR_SUBTYPE_GENERIC_ATA 4 #define IPR_QUEUEING_MODEL(res) ((((res)->cfgte.flags) & 0x70) >> 4) #define IPR_QUEUE_FROZEN_MODEL 0 @@ -350,6 +357,7 @@ struct ipr_cmd_pkt { #define IPR_RQTYPE_SCSICDB 0x00 #define IPR_RQTYPE_IOACMD 0x01 #define IPR_RQTYPE_HCAM 0x02 +#define IPR_RQTYPE_ATA_PASSTHRU 0x04 u8 luntar_luntrn; @@ -373,6 +381,37 @@ struct ipr_cmd_pkt { __be16 timeout; }__attribute__ ((packed, aligned(4))); +struct ipr_ioarcb_ata_regs { + u8 flags; +#define IPR_ATA_FLAG_PACKET_CMD 0x80 +#define IPR_ATA_FLAG_XFER_TYPE_DMA 0x40 +#define IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION 0x20 + u8 reserved[3]; + + __be16 data; + u8 feature; + u8 nsect; + u8 lbal; + u8 lbam; + u8 lbah; + u8 device; + u8 command; + u8 reserved2[3]; + u8 hob_feature; + u8 hob_nsect; + u8 hob_lbal; + u8 hob_lbam; + u8 hob_lbah; + u8 ctl; +}__attribute__ ((packed, aligned(4))); + +struct ipr_ioarcb_add_data { + union { + struct ipr_ioarcb_ata_regs regs; + __be32 add_cmd_parms[10]; + }u; +}__attribute__ ((packed, aligned(4))); + /* IOA Request Control Block 128 bytes */ struct ipr_ioarcb { __be32 ioarcb_host_pci_addr; @@ -397,7 +436,7 @@ struct ipr_ioarcb { struct ipr_cmd_pkt cmd_pkt; __be32 add_cmd_parms_len; - __be32 add_cmd_parms[10]; + struct ipr_ioarcb_add_data add_data; }__attribute__((packed, aligned (4))); struct ipr_ioadl_desc { @@ -433,6 +472,21 @@ struct ipr_ioasa_gpdd { __be32 ioa_data[2]; }__attribute__((packed, aligned (4))); +struct ipr_ioasa_gata { + u8 error; + u8 nsect; /* Interrupt reason */ + u8 lbal; + u8 lbam; + u8 lbah; + u8 device; + u8 status; + u8 alt_status; /* ATA CTL */ + u8 hob_nsect; + u8 hob_lbal; + u8 hob_lbam; + u8 hob_lbah; +}__attribute__((packed, aligned (4))); + struct ipr_auto_sense { __be16 auto_sense_len; __be16 ioa_data_len; @@ -474,6 +528,7 @@ struct ipr_ioasa { struct ipr_ioasa_vset vset; struct ipr_ioasa_af_dasd dasd; struct ipr_ioasa_gpdd gpdd; + struct ipr_ioasa_gata gata; } u; struct ipr_auto_sense auto_sense; @@ -793,6 +848,13 @@ struct ipr_bus_attributes { u32 max_xfer_rate; }; +struct ipr_sata_port { + struct ipr_ioa_cfg *ioa_cfg; + struct ata_port *ap; + struct ipr_resource_entry *res; + struct ipr_ioasa_gata ioasa; +}; + struct ipr_resource_entry { struct ipr_config_table_entry cfgte; u8 needs_sync_complete:1; @@ -802,6 +864,7 @@ struct ipr_resource_entry { u8 resetting_device:1; struct scsi_device *sdev; + struct ipr_sata_port *sata_port; struct list_head queue; }; @@ -872,10 +935,11 @@ struct ipr_trace_entry { u32 time; u8 op_code; + u8 ata_op_code; u8 type; #define IPR_TRACE_START 0x00 #define IPR_TRACE_FINISH 0xff - u16 cmd_index; + u8 cmd_index; __be32 res_handle; union { @@ -1029,6 +1093,7 @@ struct ipr_cmnd { struct ipr_ioadl_desc ioadl[IPR_NUM_IOADL_ENTRIES]; struct list_head queue; struct scsi_cmnd *scsi_cmd; + struct ata_queued_cmd *qc; struct completion completion; struct timer_list timer; void (*done) (struct ipr_cmnd *); @@ -1308,6 +1373,22 @@ static inline int ipr_is_scsi_disk(struc } /** + * ipr_is_gata - Determine if a resource is a generic ATA resource + * @res: resource entry struct + * + * Return value: + * 1 if GATA / 0 if not GATA + **/ +static inline int ipr_is_gata(struct ipr_resource_entry *res) +{ + if (!ipr_is_ioa_resource(res) && + IPR_RES_SUBTYPE(res) == IPR_SUBTYPE_GENERIC_ATA) + return 1; + else + return 0; +} + +/** * ipr_is_naca_model - Determine if a resource is using NACA queueing model * @res: resource entry struct * diff -puN drivers/scsi/ipr.c~ipr_sata_with_libata_changes drivers/scsi/ipr.c --- libata-dev/drivers/scsi/ipr.c~ipr_sata_with_libata_changes 2006-02-17 14:19:59.000000000 -0600 +++ libata-dev-bjking1/drivers/scsi/ipr.c 2006-02-17 14:19:59.000000000 -0600 @@ -71,6 +71,7 @@ #include <linux/firmware.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/libata.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/processor.h> @@ -427,7 +428,8 @@ static void ipr_trc_hook(struct ipr_cmnd trace_entry->time = jiffies; trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; trace_entry->type = type; - trace_entry->cmd_index = ipr_cmd->cmd_index; + trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; + trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; trace_entry->u.add_data = add_data; } @@ -454,8 +456,10 @@ static void ipr_reinit_ipr_cmnd(struct i ioarcb->read_ioadl_len = 0; ioasa->ioasc = 0; ioasa->residual_data_len = 0; + ioasa->u.gata.status = 0; ipr_cmd->scsi_cmd = NULL; + ipr_cmd->qc = NULL; ipr_cmd->sense_buffer[0] = 0; ipr_cmd->dma_use_sg = 0; } @@ -600,6 +604,26 @@ static int ipr_set_pcix_cmd_reg(struct i } /** + * ipr_sata_eh_done - done function for aborted SATA commands + * @ipr_cmd: ipr command struct + * + * This function is invoked for ops generated to SATA + * devices which are being aborted. + * + * Return value: + * none + **/ +static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) +{ + struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + struct ata_queued_cmd *qc = ipr_cmd->qc; + + qc->err_mask |= AC_ERR_OTHER; + list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); + ata_qc_complete(qc); +} + +/** * ipr_scsi_eh_done - mid-layer done function for aborted ops * @ipr_cmd: ipr command struct * @@ -643,6 +667,8 @@ static void ipr_fail_all_ops(struct ipr_ if (ipr_cmd->scsi_cmd) ipr_cmd->done = ipr_scsi_eh_done; + else if (ipr_cmd->qc) + ipr_cmd->done = ipr_sata_eh_done; ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); del_timer(&ipr_cmd->timer); @@ -799,6 +825,7 @@ static void ipr_init_res_entry(struct ip res->del_from_ml = 0; res->resetting_device = 0; res->sdev = NULL; + res->sata_port = NULL; } /** @@ -3025,6 +3052,17 @@ static int ipr_free_dump(struct ipr_ioa_ **/ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) { + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; + struct ipr_resource_entry *res; + unsigned long lock_flags = 0; + + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + res = (struct ipr_resource_entry *)sdev->hostdata; + + if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) + qdepth = IPR_MAX_CMD_PER_ATA_LUN; + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); return sdev->queue_depth; } @@ -3140,6 +3178,128 @@ static int ipr_biosparam(struct scsi_dev } /** + * ipr_find_starget - Find target based on bus/target. + * @starget: scsi target struct + * + * Return value: + * resource entry pointer if found / NULL if not found + **/ +static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; + struct ipr_resource_entry *res; + + list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { + if ((res->cfgte.res_addr.bus == starget->channel) && + (res->cfgte.res_addr.target == starget->id) && + (res->cfgte.res_addr.lun == 0)) { + return res; + } + } + + return NULL; +} + +static struct ata_port_info sata_port_info; + +/** + * ipr_target_alloc - Prepare for commands to a SCSI target + * @starget: scsi target struct + * + * If the device is a SATA device, this function allocates an + * ATA port with libata, else it does nothing. + * + * Return value: + * 0 on success / non-0 on failure + **/ +static int ipr_target_alloc(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; + struct ipr_sata_port *sata_port; + struct ata_port *ap; + struct ipr_resource_entry *res; + unsigned long lock_flags; + + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + res = ipr_find_starget(starget); + starget->hostdata = NULL; + + if (res && ipr_is_gata(res)) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); + if (!sata_port) + return -ENOMEM; + + ap = ata_sas_port_alloc(ioa_cfg->pdev, &sata_port_info, shost); + if (ap) { + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + sata_port->ioa_cfg = ioa_cfg; + sata_port->ap = ap; + sata_port->res = res; + + res->sata_port = sata_port; + ap->private_data = sata_port; + starget->hostdata = sata_port; + } else { + kfree(sata_port); + return -ENOMEM; + } + } + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + + return 0; +} + +/** + * ipr_target_destroy - Destroy a SCSI target + * @starget: scsi target struct + * + * If the device was a SATA device, this function frees the libata + * ATA port, else it does nothing. + * + **/ +static void ipr_target_destroy(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(&starget->dev); + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; + struct ipr_sata_port *sata_port; + unsigned long lock_flags; + + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + if (starget->hostdata) { + sata_port = starget->hostdata; + starget->hostdata = NULL; + ata_sas_port_destroy(sata_port->ap); + kfree(sata_port); + } + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); +} + +/** + * ipr_find_sdev - Find device based on bus/target/lun. + * @sdev: scsi device struct + * + * Return value: + * resource entry pointer if found / NULL if not found + **/ +static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) +{ + struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; + struct ipr_resource_entry *res; + + list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { + if ((res->cfgte.res_addr.bus == sdev->channel) && + (res->cfgte.res_addr.target == sdev->id) && + (res->cfgte.res_addr.lun == sdev->lun)) + return res; + } + + return NULL; +} + +/** * ipr_slave_destroy - Unconfigure a SCSI device * @sdev: scsi device struct * @@ -3157,8 +3317,11 @@ static void ipr_slave_destroy(struct scs spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); res = (struct ipr_resource_entry *) sdev->hostdata; if (res) { + if (res->sata_port) + ata_port_disable(res->sata_port->ap); sdev->hostdata = NULL; res->sdev = NULL; + res->sata_port = NULL; } spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); } @@ -3193,13 +3356,45 @@ static int ipr_slave_configure(struct sc } if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) sdev->allow_restart = 1; - scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + if (ipr_is_gata(res) && res->sata_port) { + scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); + ata_sas_slave_configure(sdev, res->sata_port->ap); + } else { + scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); + } } spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); return 0; } /** + * ipr_ata_slave_alloc - Prepare for commands to a SATA device + * @sdev: scsi device struct + * + * This function initializes an ATA port so that future commands + * sent through queuecommand will work. + * + * Return value: + * 0 on success + **/ +static int ipr_ata_slave_alloc(struct scsi_device *sdev) +{ + struct ipr_sata_port *sata_port = NULL; + int rc = -ENXIO; + + ENTER; + if (sdev->sdev_target) + sata_port = sdev->sdev_target->hostdata; + if (sata_port) + rc = ata_sas_port_init(sata_port->ap); + if (rc) + ipr_slave_destroy(sdev); + + LEAVE; + return rc; +} + +/** * ipr_slave_alloc - Prepare for commands to a device. * @sdev: scsi device struct * @@ -3222,18 +3417,18 @@ static int ipr_slave_alloc(struct scsi_d spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); - list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { - if ((res->cfgte.res_addr.bus == sdev->channel) && - (res->cfgte.res_addr.target == sdev->id) && - (res->cfgte.res_addr.lun == sdev->lun)) { - res->sdev = sdev; - res->add_to_ml = 0; - res->in_erp = 0; - sdev->hostdata = res; - if (!ipr_is_naca_model(res)) - res->needs_sync_complete = 1; - rc = 0; - break; + res = ipr_find_sdev(sdev); + if (res) { + res->sdev = sdev; + res->add_to_ml = 0; + res->in_erp = 0; + sdev->hostdata = res; + if (!ipr_is_naca_model(res)) + res->needs_sync_complete = 1; + rc = 0; + if (ipr_is_gata(res)) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + return ipr_ata_slave_alloc(sdev); } } @@ -3288,7 +3483,8 @@ static int ipr_eh_host_reset(struct scsi * This function issues a device reset to the affected device. * If the device is a SCSI device, a LUN reset will be sent * to the device first. If that does not work, a target reset - * will be sent. + * will be sent. If the device is a SATA device, a PHY reset will + * be sent. * * Return value: * 0 on success / non-zero on failure @@ -3299,20 +3495,30 @@ static int ipr_device_reset(struct ipr_i struct ipr_cmnd *ipr_cmd; struct ipr_ioarcb *ioarcb; struct ipr_cmd_pkt *cmd_pkt; + struct ipr_ioarcb_ata_regs *regs; u32 ioasc; ENTER; ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); ioarcb = &ipr_cmd->ioarcb; cmd_pkt = &ioarcb->cmd_pkt; + regs = &ioarcb->add_data.u.regs; ioarcb->res_handle = res->cfgte.res_handle; cmd_pkt->request_type = IPR_RQTYPE_IOACMD; cmd_pkt->cdb[0] = IPR_RESET_DEVICE; + if (ipr_is_gata(res)) { + cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; + ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); + regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; + } ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); + if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) + memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, + sizeof(struct ipr_ioasa_gata)); LEAVE; return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); @@ -4274,6 +4480,9 @@ static int ipr_queuecommand(struct scsi_ return 0; } + if (ipr_is_gata(res) && res->sata_port) + return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); + ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); ioarcb = &ipr_cmd->ioarcb; list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); @@ -4319,6 +4528,26 @@ static int ipr_queuecommand(struct scsi_ } /** + * ipr_ioctl - IOCTL handler + * @sdev: scsi device struct + * @cmd: IOCTL cmd + * @arg: IOCTL arg + * + * Return value: + * 0 on success / other on failure + **/ +int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) +{ + struct ipr_resource_entry *res; + + res = (struct ipr_resource_entry *)sdev->hostdata; + if (res && ipr_is_gata(res)) + return __ata_scsi_ioctl(sdev, cmd, arg); + + return -EINVAL; +} + +/** * ipr_info - Get information about the card/driver * @scsi_host: scsi host struct * @@ -4344,6 +4573,7 @@ static struct scsi_host_template driver_ .module = THIS_MODULE, .name = "IPR", .info = ipr_ioa_info, + .ioctl = ipr_ioctl, .queuecommand = ipr_queuecommand, .eh_abort_handler = ipr_eh_abort, .eh_device_reset_handler = ipr_eh_dev_reset, @@ -4351,6 +4581,8 @@ static struct scsi_host_template driver_ .slave_alloc = ipr_slave_alloc, .slave_configure = ipr_slave_configure, .slave_destroy = ipr_slave_destroy, + .target_alloc = ipr_target_alloc, + .target_destroy = ipr_target_destroy, .change_queue_depth = ipr_change_queue_depth, .change_queue_type = ipr_change_queue_type, .bios_param = ipr_biosparam, @@ -4365,6 +4597,313 @@ static struct scsi_host_template driver_ .proc_name = IPR_NAME }; +/** + * ipr_ata_hardreset - Issue SATA hard reset + * @ap: ata port to reset + * @verbose: verbosity + * @classes: array of classes of devices + * + * Return value: + * 0 on success / other on failure + **/ +static int ipr_ata_hardreset(struct ata_port *ap, int verbose, unsigned int *classes) +{ + unsigned long flags; + struct ipr_sata_port *sata_port = ap->private_data; + struct ipr_resource_entry *res = sata_port->res; + struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; + int rc = -EIO; + + ENTER; + spin_lock_irqsave(ioa_cfg->host->host_lock, flags); + while(ioa_cfg->in_reset_reload) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); + wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); + spin_lock_irqsave(ioa_cfg->host->host_lock, flags); + } + + if (!ioa_cfg->allow_cmds) + goto out_unlock; + + rc = ipr_device_reset(ioa_cfg, res); + + switch(res->cfgte.proto) { + case IPR_PROTO_SATA: + case IPR_PROTO_SAS_STP: + classes[0] = ATA_DEV_ATA; + break; + case IPR_PROTO_SATA_ATAPI: + case IPR_PROTO_SAS_STP_ATAPI: + classes[0] = ATA_DEV_ATAPI; + break; + default: + classes[0] = ATA_DEV_UNKNOWN; + ap->ops->port_disable(ap); + break; + }; + +out_unlock: + spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); + LEAVE; + return rc; +} + +/** + * ipr_ata_probe_reset - libata probe_reset handler + * @ap: ata port to reset + * @classes: array of classes of devices + * + * Return value: + * 0 on success / other on failure + **/ +static int ipr_ata_probe_reset(struct ata_port *ap, unsigned int *classes) +{ + return ata_drive_probe_reset(ap, NULL, NULL, ipr_ata_hardreset, + ata_std_postreset, classes); +} + +/** + * ipr_tf_read - Read the current ATA taskfile for the ATA port + * @ap: ATA port + * @tf: destination ATA taskfile + * + * Return value: + * none + **/ +static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) +{ + struct ipr_sata_port *sata_port = ap->private_data; + struct ipr_ioasa_gata *g = &sata_port->ioasa; + + tf->feature = g->error; + tf->nsect = g->nsect; + tf->lbal = g->lbal; + tf->lbam = g->lbam; + tf->lbah = g->lbah; + tf->device = g->device; + tf->command = g->status; + tf->hob_nsect = g->hob_nsect; + tf->hob_lbal = g->hob_lbal; + tf->hob_lbam = g->hob_lbam; + tf->hob_lbah = g->hob_lbah; + tf->ctl = g->alt_status; +} + +/** + * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure + * @regs: destination + * @tf: source ATA taskfile + * + * Return value: + * none + **/ +static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, + struct ata_taskfile *tf) +{ + regs->feature = tf->feature; + regs->nsect = tf->nsect; + regs->lbal = tf->lbal; + regs->lbam = tf->lbam; + regs->lbah = tf->lbah; + regs->device = tf->device; + regs->command = tf->command; + regs->hob_feature = tf->hob_feature; + regs->hob_nsect = tf->hob_nsect; + regs->hob_lbal = tf->hob_lbal; + regs->hob_lbam = tf->hob_lbam; + regs->hob_lbah = tf->hob_lbah; + regs->ctl = tf->ctl; +} + +/** + * ipr_sata_done - done function for SATA commands + * @ipr_cmd: ipr command struct + * + * This function is invoked by the interrupt handler for + * ops generated by the SCSI mid-layer to SATA devices + * + * Return value: + * none + **/ +static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) +{ + struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + struct ata_queued_cmd *qc = ipr_cmd->qc; + struct ipr_sata_port *sata_port = qc->ap->private_data; + + memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, + sizeof(struct ipr_ioasa_gata)); + ipr_dump_ioasa(ioa_cfg, ipr_cmd, sata_port->res); + + if (IPR_IOASC_SENSE_KEY(be32_to_cpu(ipr_cmd->ioasa.ioasc))) + qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); + else + qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); + list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); + ata_qc_complete(qc); +} + +/** + * ipr_build_ata_ioadl - Build an ATA scatter/gather list + * @ipr_cmd: ipr command struct + * @qc: ATA queued command + * + **/ +static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, + struct ata_queued_cmd *qc) +{ + u32 ioadl_flags = 0; + struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; + struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; + int len = qc->nbytes + qc->pad_len; + struct scatterlist *sg; + + if (len == 0) + return; + + if (qc->dma_dir == DMA_TO_DEVICE) { + ioadl_flags = IPR_IOADL_FLAGS_WRITE; + ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; + ioarcb->write_data_transfer_length = cpu_to_be32(len); + ioarcb->write_ioadl_len = + cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); + } else if (qc->dma_dir == DMA_FROM_DEVICE) { + ioadl_flags = IPR_IOADL_FLAGS_READ; + ioarcb->read_data_transfer_length = cpu_to_be32(len); + ioarcb->read_ioadl_len = + cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); + } + + ata_for_each_sg(sg, qc) { + ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); + ioadl->address = cpu_to_be32(sg_dma_address(sg)); + if (ata_sg_is_last(sg, qc)) + ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); + else + ioadl++; + } +} + +/** + * ipr_qc_issue - Issue a SATA qc to a device + * @qc: queued command + * + * Return value: + * 0 if success + **/ +static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct ipr_sata_port *sata_port = ap->private_data; + struct ipr_resource_entry *res = sata_port->res; + struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; + struct ipr_cmnd *ipr_cmd; + struct ipr_ioarcb *ioarcb; + struct ipr_ioarcb_ata_regs *regs; + + if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) + return -EIO; + + ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); + ioarcb = &ipr_cmd->ioarcb; + regs = &ioarcb->add_data.u.regs; + + memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); + ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); + + list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); + ipr_cmd->qc = qc; + ipr_cmd->done = ipr_sata_done; + ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; + ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; + ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; + ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; + ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; + + ipr_build_ata_ioadl(ipr_cmd, qc); + regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; + ipr_copy_sata_tf(regs, &qc->tf); + memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); + ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); + + switch (qc->tf.protocol) { + case ATA_PROT_NODATA: + case ATA_PROT_PIO: + break; + + case ATA_PROT_DMA: + regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; + break; + + case ATA_PROT_ATAPI: + case ATA_PROT_ATAPI_NODATA: + regs->flags |= IPR_ATA_FLAG_PACKET_CMD; + break; + + case ATA_PROT_ATAPI_DMA: + regs->flags |= IPR_ATA_FLAG_PACKET_CMD; + regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; + break; + + default: + WARN_ON(1); + return -1; + } + + mb(); + writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), + ioa_cfg->regs.ioarrin_reg); + return 0; +} + +/** + * ipr_ata_check_status - Return last ATA status + * @ap: ATA port + * + * Return value: + * ATA status + **/ +static u8 ipr_ata_check_status(struct ata_port *ap) +{ + struct ipr_sata_port *sata_port = ap->private_data; + return sata_port->ioasa.status; +} + +/** + * ipr_ata_check_altstatus - Return last ATA altstatus + * @ap: ATA port + * + * Return value: + * Alt ATA status + **/ +static u8 ipr_ata_check_altstatus(struct ata_port *ap) +{ + struct ipr_sata_port *sata_port = ap->private_data; + return sata_port->ioasa.alt_status; +} + +static struct ata_port_operations ipr_sata_ops = { + .port_disable = ata_port_disable, + .check_status = ipr_ata_check_status, + .check_altstatus = ipr_ata_check_altstatus, + .dev_select = ata_noop_dev_select, + .probe_reset = ipr_ata_probe_reset, + .tf_read = ipr_tf_read, + .qc_prep = ata_noop_qc_prep, + .qc_issue = ipr_qc_issue, + .port_start = ata_sas_port_start, + .port_stop = ata_sas_port_stop +}; + +static struct ata_port_info sata_port_info = { + .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | + ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, + .pio_mask = 0x10, /* pio4 */ + .mwdma_mask = 0x07, + .udma_mask = 0x7f, /* udma0-6 */ + .port_ops = &ipr_sata_ops +}; + #ifdef CONFIG_PPC_PSERIES static const u16 ipr_blocked_processors[] = { PV_NORTHSTAR, diff -puN drivers/scsi/Kconfig~ipr_sata_with_libata_changes drivers/scsi/Kconfig --- libata-dev/drivers/scsi/Kconfig~ipr_sata_with_libata_changes 2006-02-17 14:19:59.000000000 -0600 +++ libata-dev-bjking1/drivers/scsi/Kconfig 2006-02-17 14:19:59.000000000 -0600 @@ -1103,6 +1103,7 @@ config SCSI_IPR tristate "IBM Power Linux RAID adapter support" depends on PCI && SCSI select FW_LOADER + select SCSI_SATA ---help--- This driver supports the IBM Power Linux family RAID adapters. This includes IBM pSeries 5712, 5703, 5709, and 570A, as well diff -puN drivers/scsi/Makefile~ipr_sata_with_libata_changes drivers/scsi/Makefile --- libata-dev/drivers/scsi/Makefile~ipr_sata_with_libata_changes 2006-02-17 14:19:59.000000000 -0600 +++ libata-dev-bjking1/drivers/scsi/Makefile 2006-02-17 14:19:59.000000000 -0600 @@ -121,7 +121,7 @@ obj-$(CONFIG_SCSI_DEBUG) += scsi_debug.o obj-$(CONFIG_SCSI_FCAL) += fcal.o obj-$(CONFIG_SCSI_LASI700) += 53c700.o lasi700.o obj-$(CONFIG_SCSI_NSP32) += nsp32.o -obj-$(CONFIG_SCSI_IPR) += ipr.o +obj-$(CONFIG_SCSI_IPR) += libata.o ipr.o obj-$(CONFIG_SCSI_IBMVSCSI) += ibmvscsi/ obj-$(CONFIG_SCSI_SATA_AHCI) += libata.o ahci.o obj-$(CONFIG_SCSI_SATA_SVW) += libata.o sata_svw.o _ - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html