From: Marc Carino <marc.ceeeee@xxxxxxxxx>
Add support for the following ATA opcodes, which are present
in SATA 3.1 and T13 ATA ACS-3:
SEND FPDMA QUEUED
RECEIVE FPDMA QUEUED
Signed-off-by: Marc Carino <marc.ceeeee@xxxxxxxxx>
---
drivers/ata/libata-core.c | 16 ++++++++++++++++
include/linux/ata.h | 21 +++++++++++++++++++++
include/linux/libata.h | 4 ++++
3 files changed, 41 insertions(+)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 9062aa0..4866913 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2141,6 +2141,22 @@ static int ata_dev_config_ncq(struct ata_device *dev,
else
snprintf(desc, desc_sz, "NCQ (depth %d/%d)%s", hdepth,
ddepth, aa_desc);
+
+ if ((ap->flags & ATA_FLAG_FPDMA_AUX) &&
+ ata_id_has_ncq_send_and_recv(dev->id)) {
+ err_mask = ata_read_log_page(dev, ATA_LOG_NCQ_SEND_RECV,
+ 0, ap->sector_buf, 1);
+ if (err_mask) {
+ ata_dev_dbg(dev,
+ "failed to get NCQ Send/Recv Log Emask 0x%x\n",
+ err_mask);
+ } else {
+ dev->flags |= ATA_DFLAG_NCQ_SEND_RECV;
+ memcpy(dev->ncq_send_recv_cmds, ap->sector_buf,
+ ATA_LOG_NCQ_SEND_RECV_SIZE);
+ }
+ }
+
return 0;
}
diff --git a/include/linux/ata.h b/include/linux/ata.h
index f63fb1a..bf4c69c 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -239,6 +239,8 @@ enum {
ATA_CMD_WRITE_QUEUED_FUA_EXT = 0x3E,
ATA_CMD_FPDMA_READ = 0x60,
ATA_CMD_FPDMA_WRITE = 0x61,
+ ATA_CMD_FPDMA_SEND = 0x64,
+ ATA_CMD_FPDMA_RECV = 0x65,
ATA_CMD_PIO_READ = 0x20,
ATA_CMD_PIO_READ_EXT = 0x24,
ATA_CMD_PIO_WRITE = 0x30,
@@ -293,8 +295,13 @@ enum {
/* marked obsolete in the ATA/ATAPI-7 spec */
ATA_CMD_RESTORE = 0x10,
+ /* Subcmds for ATA_CMD_FPDMA_SEND */
+ ATA_SUBCMD_FPDMA_SEND_DSM = 0x00,
+ ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT = 0x02,
+
/* READ_LOG_EXT pages */
ATA_LOG_SATA_NCQ = 0x10,
+ ATA_LOG_NCQ_SEND_RECV = 0x13,
ATA_LOG_SATA_ID_DEV_DATA = 0x30,
ATA_LOG_SATA_SETTINGS = 0x08,
ATA_LOG_DEVSLP_OFFSET = 0x30,
@@ -305,6 +312,15 @@ enum {
ATA_LOG_DEVSLP_VALID = 0x07,
ATA_LOG_DEVSLP_VALID_MASK = 0x80,
+ /* NCQ send and receive log */
+ ATA_LOG_NCQ_SEND_RECV_SUBCMDS_OFFSET = 0x00,
+ ATA_LOG_NCQ_SEND_RECV_SUBCMDS_DSM = (1 << 0),
+ ATA_LOG_NCQ_SEND_RECV_DSM_OFFSET = 0x04,
+ ATA_LOG_NCQ_SEND_RECV_DSM_TRIM = (1 << 0),
+ ATA_LOG_NCQ_SEND_RECV_RD_LOG_OFFSET = 0x08,
+ ATA_LOG_NCQ_SEND_RECV_WR_LOG_OFFSET = 0x0C,
+ ATA_LOG_NCQ_SEND_RECV_SIZE = 0x10,
+
/* READ/WRITE LONG (obsolete) */
ATA_CMD_READ_LONG = 0x22,
ATA_CMD_READ_LONG_ONCE = 0x23,
@@ -772,6 +788,11 @@ static inline int ata_id_rotation_rate(const u16 *id)
return val;
}
+static inline bool ata_id_has_ncq_send_and_recv(const u16 *id)
+{
+ return id[ATA_ID_SATA_CAPABILITY_2] & BIT(6);
+}
+
static inline bool ata_id_has_trim(const u16 *id)
{
if (ata_id_major_version(id) >= 7 &&
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 6539c50..b925504 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -172,6 +172,7 @@ enum {
ATA_DFLAG_DUBIOUS_XFER = (1 << 16), /* data transfer not verified */
ATA_DFLAG_NO_UNLOAD = (1 << 17), /* device doesn't support unload */
ATA_DFLAG_UNLOCK_HPA = (1 << 18), /* unlock HPA */
+ ATA_DFLAG_NCQ_SEND_RECV = (1 << 19), /* device supports NCQ SEND and RECV */
ATA_DFLAG_INIT_MASK = (1 << 24) - 1,
ATA_DFLAG_DETACH = (1 << 24),
@@ -704,6 +705,9 @@ struct ata_device {
/* DEVSLP Timing Variables from Identify Device Data Log */
u8 devslp_timing[ATA_LOG_DEVSLP_SIZE];
+ /* NCQ send and receive log subcommand support */
+ u8 ncq_send_recv_cmds[ATA_LOG_NCQ_SEND_RECV_SIZE];
+
/* error history */
int spdn_cnt;
/* ering is CLEAR_END, read comment above CLEAR_END */
--
1.8.1.2
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