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-rw-r--r--include/linux/libata.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index b0d4ca0d27b4..f9f81fd93293 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -216,6 +216,7 @@ enum {
ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
ATA_QCFLAG_IO = (1 << 3), /* standard IO command */
ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */
+ ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */
ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */
ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */
@@ -579,11 +580,13 @@ struct ata_port {
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
unsigned long qc_allocated;
unsigned int qc_active;
+ int nr_active_links; /* #links with active qcs */
struct ata_link link; /* host default link */
int nr_pmp_links; /* nr of available PMP links */
struct ata_link *pmp_link; /* array of PMP links */
+ struct ata_link *excl_link; /* for PMP qc exclusion */
struct ata_port_stats stats;
struct ata_host *host;
@@ -1104,6 +1107,11 @@ static inline int ata_link_max_devices(const struct ata_link *link)
return 1;
}
+static inline int ata_link_active(struct ata_link *link)
+{
+ return ata_tag_valid(link->active_tag) || link->sactive;
+}
+
static inline struct ata_link *ata_port_first_link(struct ata_port *ap)
{
if (ap->nr_pmp_links)