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mtip32xx: Handle NCQ commands during the security locked state

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Return error for NCQ commands when the drive is in security locked state

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Selvan Mani <smani@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Asai Thambi S P 2012-09-05 22:01:36 +05:30 committed by Jens Axboe
parent 1a131458dd
commit 12a166c919
2 changed files with 11 additions and 1 deletions
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10
drivers/block/mtip32xx/mtip32xx.c
View File

@ -1148,11 +1148,15 @@ static bool mtip_pause_ncq(struct mtip_port *port,
reply = port->rxfis + RX_FIS_D2H_REG;
task_file_data = readl(port->mmio+PORT_TFDATA);
if ((task_file_data & 1) || (fis->command == ATA_CMD_SEC_ERASE_UNIT))
if (fis->command == ATA_CMD_SEC_ERASE_UNIT)
clear_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
if ((task_file_data & 1))
return false;
if (fis->command == ATA_CMD_SEC_ERASE_PREP) {
set_bit(MTIP_PF_SE_ACTIVE_BIT, &port->flags);
set_bit(MTIP_DDF_SEC_LOCK_BIT, &port->dd->dd_flag);
port->ic_pause_timer = jiffies;
return true;
} else if ((fis->command == ATA_CMD_DOWNLOAD_MICRO) &&
@ -3619,6 +3623,10 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
bio_endio(bio, -ENODATA);
return;
}
if (unlikely(test_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag))) {
bio_endio(bio, -ENODATA);
return;
}
}
if (unlikely(!bio_has_data(bio))) {

2
drivers/block/mtip32xx/mtip32xx.h
View File

@ -137,10 +137,12 @@ enum {
MTIP_PF_SVC_THD_STOP_BIT = 8,
/* below are bit numbers in 'dd_flag' defined in driver_data */
MTIP_DDF_SEC_LOCK_BIT = 0,
MTIP_DDF_REMOVE_PENDING_BIT = 1,
MTIP_DDF_OVER_TEMP_BIT = 2,
MTIP_DDF_WRITE_PROTECT_BIT = 3,
MTIP_DDF_STOP_IO = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) | \
(1 << MTIP_DDF_SEC_LOCK_BIT) | \
(1 << MTIP_DDF_OVER_TEMP_BIT) | \
(1 << MTIP_DDF_WRITE_PROTECT_BIT)),