libata: add @is_cmd to ata_tf_to_fis()
Add @is_cmd to ata_tf_to_fis(). This controls bit 7 of the second
byte which tells the device whether this H2D FIS is for a command or
not. This cleans up ahci a bit and will be used by PMP.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index eaec5e5..61c5b6e 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1020,8 +1020,7 @@
cmd_fis_len | AHCI_CMD_RESET | AHCI_CMD_CLR_BUSY);
tf.ctl |= ATA_SRST;
- ata_tf_to_fis(&tf, fis, 0);
- fis[1] &= ~(1 << 7); /* turn off Command FIS bit */
+ ata_tf_to_fis(&tf, 0, 0, fis);
writel(1, port_mmio + PORT_CMD_ISSUE);
@@ -1039,8 +1038,7 @@
ahci_fill_cmd_slot(pp, 0, cmd_fis_len);
tf.ctl &= ~ATA_SRST;
- ata_tf_to_fis(&tf, fis, 0);
- fis[1] &= ~(1 << 7); /* turn off Command FIS bit */
+ ata_tf_to_fis(&tf, 0, 0, fis);
writel(1, port_mmio + PORT_CMD_ISSUE);
readl(port_mmio + PORT_CMD_ISSUE); /* flush */
@@ -1088,7 +1086,7 @@
/* clear D2H reception area to properly wait for D2H FIS */
ata_tf_init(ap->device, &tf);
tf.command = 0x80;
- ata_tf_to_fis(&tf, d2h_fis, 0);
+ ata_tf_to_fis(&tf, 0, 0, d2h_fis);
rc = sata_std_hardreset(ap, class, deadline);
@@ -1205,7 +1203,7 @@
*/
cmd_tbl = pp->cmd_tbl + qc->tag * AHCI_CMD_TBL_SZ;
- ata_tf_to_fis(&qc->tf, cmd_tbl, 0);
+ ata_tf_to_fis(&qc->tf, 0, 1, cmd_tbl);
if (is_atapi) {
memset(cmd_tbl + AHCI_CMD_TBL_CDB, 0, 32);
memcpy(cmd_tbl + AHCI_CMD_TBL_CDB, qc->cdb, qc->dev->cdb_len);