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authorHannes Reinecke <hare@suse.de>2016-04-25 12:45:54 +0200
committerTejun Heo <tj@kernel.org>2016-05-09 12:36:46 -0400
commit284b3b77ea883234dadb2cbf97b145c3c30fe4bd (patch)
tree2faa832ef21a350e2d6b5e4c238f70e38e0e6502 /drivers/ata
parent27708a9579ee069c6e0ebb6e61ac1114ed1d546c (diff)
libata: NCQ encapsulation for ZAC MANAGEMENT OUT
Add NCQ encapsulation for ZAC MANAGEMENT OUT and evaluate NCQ Non-Data log pages to figure out if NCQ encapsulation is supported. Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-core.c43
-rw-r--r--drivers/ata/libata-scsi.c18
-rw-r--r--drivers/ata/libata-trace.c3
3 files changed, 56 insertions, 8 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index b2bd7c499653..1528c7cc0089 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2121,6 +2121,40 @@ static void ata_dev_config_ncq_send_recv(struct ata_device *dev)
}
}
+static void ata_dev_config_ncq_non_data(struct ata_device *dev)
+{
+ struct ata_port *ap = dev->link->ap;
+ unsigned int err_mask;
+ int log_index = ATA_LOG_NCQ_NON_DATA * 2;
+ u16 log_pages;
+
+ err_mask = ata_read_log_page(dev, ATA_LOG_DIRECTORY,
+ 0, ap->sector_buf, 1);
+ if (err_mask) {
+ ata_dev_dbg(dev,
+ "failed to get Log Directory Emask 0x%x\n",
+ err_mask);
+ return;
+ }
+ log_pages = get_unaligned_le16(&ap->sector_buf[log_index]);
+ if (!log_pages) {
+ ata_dev_warn(dev,
+ "NCQ Send/Recv Log not supported\n");
+ return;
+ }
+ err_mask = ata_read_log_page(dev, ATA_LOG_NCQ_NON_DATA,
+ 0, ap->sector_buf, 1);
+ if (err_mask) {
+ ata_dev_dbg(dev,
+ "failed to get NCQ Non-Data Log Emask 0x%x\n",
+ err_mask);
+ } else {
+ u8 *cmds = dev->ncq_non_data_cmds;
+
+ memcpy(cmds, ap->sector_buf, ATA_LOG_NCQ_NON_DATA_SIZE);
+ }
+}
+
static int ata_dev_config_ncq(struct ata_device *dev,
char *desc, size_t desc_sz)
{
@@ -2165,9 +2199,12 @@ static int ata_dev_config_ncq(struct ata_device *dev,
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))
- ata_dev_config_ncq_send_recv(dev);
+ if ((ap->flags & ATA_FLAG_FPDMA_AUX)) {
+ if (ata_id_has_ncq_send_and_recv(dev->id))
+ ata_dev_config_ncq_send_recv(dev);
+ if (ata_id_has_ncq_non_data(dev->id))
+ ata_dev_config_ncq_non_data(dev);
+ }
return 0;
}
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 6afd0840ebbe..43403aa0801f 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3506,11 +3506,19 @@ static unsigned int ata_scsi_zbc_out_xlat(struct ata_queued_cmd *qc)
reset_all = cdb[14] & 0x1;
- tf->protocol = ATA_PROT_NODATA;
- tf->command = ATA_CMD_ZAC_MGMT_OUT;
- tf->feature = sa;
- tf->hob_feature = reset_all & 0x1;
-
+ if (ata_ncq_enabled(qc->dev) &&
+ ata_fpdma_zac_mgmt_out_supported(qc->dev)) {
+ tf->protocol = ATA_PROT_NCQ;
+ tf->command = ATA_CMD_NCQ_NON_DATA;
+ tf->hob_nsect = ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT;
+ tf->nsect = qc->tag << 3;
+ tf->auxiliary = sa | (reset_all & 0x1) << 8;
+ } else {
+ tf->protocol = ATA_PROT_NODATA;
+ tf->command = ATA_CMD_ZAC_MGMT_OUT;
+ tf->feature = sa;
+ tf->hob_feature = reset_all & 0x1;
+ }
tf->lbah = (block >> 16) & 0xff;
tf->lbam = (block >> 8) & 0xff;
tf->lbal = block & 0xff;
diff --git a/drivers/ata/libata-trace.c b/drivers/ata/libata-trace.c
index 1111ba7db5b3..f8c550df0615 100644
--- a/drivers/ata/libata-trace.c
+++ b/drivers/ata/libata-trace.c
@@ -188,6 +188,9 @@ libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd,
case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT:
trace_seq_printf(p, " ZERO_EXT");
break;
+ case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:
+ trace_seq_printf(p, " ZAC_MGMT_OUT");
+ break;
}
break;
case ATA_CMD_ZAC_MGMT_IN: