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authorJakub Kicinski <kuba@kernel.org>2024-06-20 13:02:22 -0700
committerJakub Kicinski <kuba@kernel.org>2024-06-20 13:49:59 -0700
commita6ec08beec9ea93f342d6daeac922208709694dc (patch)
treee14f4b7f0133e63a20a27baea37506abeba3bb95 /drivers/scsi/mpi3mr/mpi3mr_app.c
parenta012f9a752a5856b29610057c76079fbdbe02abf (diff)
parentd5a7fc58da039903b332041e8c67daae36f08b50 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt.c 1e7962114c10 ("bnxt_en: Restore PTP tx_avail count in case of skb_pad() error") 165f87691a89 ("bnxt_en: add timestamping statistics support") No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/scsi/mpi3mr/mpi3mr_app.c')
-rw-r--r--drivers/scsi/mpi3mr/mpi3mr_app.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index 1638109a68a0..cd261b48eb46 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -2163,10 +2163,72 @@ persistent_id_show(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR_RO(persistent_id);
+/**
+ * sas_ncq_prio_supported_show - Indicate if device supports NCQ priority
+ * @dev: pointer to embedded device
+ * @attr: sas_ncq_prio_supported attribute descriptor
+ * @buf: the buffer returned
+ *
+ * A sysfs 'read-only' sdev attribute, only works with SATA devices
+ */
+static ssize_t
+sas_ncq_prio_supported_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+
+ return sysfs_emit(buf, "%d\n", sas_ata_ncq_prio_supported(sdev));
+}
+static DEVICE_ATTR_RO(sas_ncq_prio_supported);
+
+/**
+ * sas_ncq_prio_enable_show - send prioritized io commands to device
+ * @dev: pointer to embedded device
+ * @attr: sas_ncq_prio_enable attribute descriptor
+ * @buf: the buffer returned
+ *
+ * A sysfs 'read/write' sdev attribute, only works with SATA devices
+ */
+static ssize_t
+sas_ncq_prio_enable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct mpi3mr_sdev_priv_data *sdev_priv_data = sdev->hostdata;
+
+ if (!sdev_priv_data)
+ return 0;
+
+ return sysfs_emit(buf, "%d\n", sdev_priv_data->ncq_prio_enable);
+}
+
+static ssize_t
+sas_ncq_prio_enable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct scsi_device *sdev = to_scsi_device(dev);
+ struct mpi3mr_sdev_priv_data *sdev_priv_data = sdev->hostdata;
+ bool ncq_prio_enable = 0;
+
+ if (kstrtobool(buf, &ncq_prio_enable))
+ return -EINVAL;
+
+ if (!sas_ata_ncq_prio_supported(sdev))
+ return -EINVAL;
+
+ sdev_priv_data->ncq_prio_enable = ncq_prio_enable;
+
+ return strlen(buf);
+}
+static DEVICE_ATTR_RW(sas_ncq_prio_enable);
+
static struct attribute *mpi3mr_dev_attrs[] = {
&dev_attr_sas_address.attr,
&dev_attr_device_handle.attr,
&dev_attr_persistent_id.attr,
+ &dev_attr_sas_ncq_prio_supported.attr,
+ &dev_attr_sas_ncq_prio_enable.attr,
NULL,
};