diff options
Diffstat (limited to 'drivers/scsi/libata-scsi.c')
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 57 |
1 files changed, 24 insertions, 33 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index eb604b0..0df4b68 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -37,9 +37,10 @@ #include <linux/blkdev.h> #include <linux/spinlock.h> #include <scsi/scsi.h> -#include "scsi.h" #include <scsi/scsi_host.h> +#include <scsi/scsi_eh.h> #include <scsi/scsi_device.h> +#include <scsi/scsi_request.h> #include <linux/libata.h> #include <linux/hdreg.h> #include <asm/uaccess.h> @@ -131,7 +132,7 @@ int ata_std_bios_param(struct scsi_device *sdev, struct block_device *bdev, /** * ata_cmd_ioctl - Handler for HDIO_DRIVE_CMD ioctl - * @dev: Device to whom we are issuing command + * @scsidev: Device to which we are issuing command * @arg: User provided data for issuing command * * LOCKING: @@ -147,7 +148,8 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) u8 scsi_cmd[MAX_COMMAND_SIZE]; u8 args[4], *argbuf = NULL; int argsize = 0; - struct scsi_request *sreq; + struct scsi_sense_hdr sshdr; + enum dma_data_direction data_dir; if (NULL == (void *)arg) return -EINVAL; @@ -155,10 +157,6 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) if (copy_from_user(args, arg, sizeof(args))) return -EFAULT; - sreq = scsi_allocate_request(scsidev, GFP_KERNEL); - if (!sreq) - return -EINTR; - memset(scsi_cmd, 0, sizeof(scsi_cmd)); if (args[3]) { @@ -172,11 +170,11 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) scsi_cmd[1] = (4 << 1); /* PIO Data-in */ scsi_cmd[2] = 0x0e; /* no off.line or cc, read from dev, block count in sector count field */ - sreq->sr_data_direction = DMA_FROM_DEVICE; + data_dir = DMA_FROM_DEVICE; } else { scsi_cmd[1] = (3 << 1); /* Non-data */ /* scsi_cmd[2] is already 0 -- no off.line, cc, or data xfer */ - sreq->sr_data_direction = DMA_NONE; + data_dir = DMA_NONE; } scsi_cmd[0] = ATA_16; @@ -194,9 +192,8 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) /* Good values for timeout and retries? Values below from scsi_ioctl_send_command() for default case... */ - scsi_wait_req(sreq, scsi_cmd, argbuf, argsize, (10*HZ), 5); - - if (sreq->sr_result) { + if (scsi_execute_req(scsidev, scsi_cmd, data_dir, argbuf, argsize, + &sshdr, (10*HZ), 5)) { rc = -EIO; goto error; } @@ -207,8 +204,6 @@ int ata_cmd_ioctl(struct scsi_device *scsidev, void __user *arg) && copy_to_user((void *)(arg + sizeof(args)), argbuf, argsize)) rc = -EFAULT; error: - scsi_release_request(sreq); - if (argbuf) kfree(argbuf); @@ -217,7 +212,7 @@ error: /** * ata_task_ioctl - Handler for HDIO_DRIVE_TASK ioctl - * @dev: Device to whom we are issuing command + * @scsidev: Device to which we are issuing command * @arg: User provided data for issuing command * * LOCKING: @@ -231,7 +226,7 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) int rc = 0; u8 scsi_cmd[MAX_COMMAND_SIZE]; u8 args[7]; - struct scsi_request *sreq; + struct scsi_sense_hdr sshdr; if (NULL == (void *)arg) return -EINVAL; @@ -250,26 +245,13 @@ int ata_task_ioctl(struct scsi_device *scsidev, void __user *arg) scsi_cmd[12] = args[5]; scsi_cmd[14] = args[0]; - sreq = scsi_allocate_request(scsidev, GFP_KERNEL); - if (!sreq) { - rc = -EINTR; - goto error; - } - - sreq->sr_data_direction = DMA_NONE; /* Good values for timeout and retries? Values below - from scsi_ioctl_send_command() for default case... */ - scsi_wait_req(sreq, scsi_cmd, NULL, 0, (10*HZ), 5); - - if (sreq->sr_result) { + 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; - goto error; - } /* Need code to retrieve data from check condition? */ - -error: - scsi_release_request(sreq); return rc; } @@ -416,6 +398,7 @@ void ata_dump_status(unsigned id, struct ata_taskfile *tf) /** * ata_to_sense_error - convert ATA error to SCSI error + * @id: ATA device number * @drv_stat: value contained in ATA status register * @drv_err: value contained in ATA error register * @sk: the sense key we'll fill out @@ -1128,6 +1111,8 @@ static unsigned int ata_scsi_rw_xlat(struct ata_queued_cmd *qc, const u8 *scsicm * length 0 means transfer 0 block of data. * However, for ATA R/W commands, sector count 0 means * 256 or 65536 sectors, not 0 sectors as in SCSI. + * + * WARNING: one or two older ATA drives treat 0 as 0... */ goto nothing_to_do; @@ -2231,7 +2216,7 @@ ata_scsi_map_proto(u8 byte1) /** * ata_scsi_pass_thru - convert ATA pass-thru CDB to taskfile * @qc: command structure to be initialized - * @cmd: SCSI command to convert + * @scsicmd: SCSI command to convert * * Handles either 12 or 16-byte versions of the CDB. * @@ -2291,6 +2276,12 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd) tf->device = scsicmd[8]; tf->command = scsicmd[9]; } + /* + * If slave is possible, enforce correct master/slave bit + */ + if (qc->ap->flags & ATA_FLAG_SLAVE_POSS) + tf->device = qc->dev->devno ? + tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1; /* * Filter SET_FEATURES - XFER MODE command -- otherwise, |
