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From: Sumit Saxena <sumit.saxena@broadcom.com>
To: linux-scsi@vger.kernel.org
Cc: martin.petersen@oracle.com, sathya.prakash@broadcom.com,
	kashyap.desai@broadcom.com, chandrakanth.patil@broadcom.com,
	sreekanth.reddy@broadcom.com, prayas.patel@broadcom.com,
	Sumit Saxena <sumit.saxena@broadcom.com>
Subject: [PATCH 5/7] mpi3mr: expose adapter state to sysfs
Date: Tue, 22 Mar 2022 08:21:05 -0400	[thread overview]
Message-ID: <20220322122107.8482-6-sumit.saxena@broadcom.com> (raw)
In-Reply-To: <20220322122107.8482-1-sumit.saxena@broadcom.com>

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Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
---
 drivers/scsi/mpi3mr/mpi3mr.h     |  2 +-
 drivers/scsi/mpi3mr/mpi3mr_app.c | 46 ++++++++++++++++++++++++++++++++
 drivers/scsi/mpi3mr/mpi3mr_os.c  |  1 +
 3 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h
index 10c074c1eea6..5a1b2d9b64da 100644
--- a/drivers/scsi/mpi3mr/mpi3mr.h
+++ b/drivers/scsi/mpi3mr/mpi3mr.h
@@ -1022,5 +1022,5 @@ int mpi3mr_pel_get_seqnum_post(struct mpi3mr_ioc *mrioc,
 	struct mpi3mr_drv_cmd *drv_cmd);
 void mpi3mr_app_save_logdata(struct mpi3mr_ioc *mrioc, char *event_data,
 	u16 event_data_size);
-
+extern const struct attribute_group *mpi3mr_host_groups[];
 #endif /*MPI3MR_H_INCLUDED*/
diff --git a/drivers/scsi/mpi3mr/mpi3mr_app.c b/drivers/scsi/mpi3mr/mpi3mr_app.c
index aa95bff5412a..da3c7835ada4 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_app.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_app.c
@@ -1220,3 +1220,49 @@ void mpi3mr_bsg_init(struct mpi3mr_ioc *mrioc)
 err_device_add:
 	kfree(mrioc->bsg_dev);
 }
+
+/**
+ * adapter_state_show - SysFS callback for adapter state show
+ * @dev: class device
+ * @attr: Device attributes
+ * @buf: Buffer to copy
+ *
+ * Return: snprintf() return after copying adapter state
+ */
+static ssize_t
+adp_state_show(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct mpi3mr_ioc *mrioc = shost_priv(shost);
+	enum mpi3mr_iocstate ioc_state;
+	uint8_t adp_state;
+
+	ioc_state = mpi3mr_get_iocstate(mrioc);
+	if (ioc_state == MRIOC_STATE_UNRECOVERABLE)
+		adp_state = MPI3MR_BSG_ADPSTATE_UNRECOVERABLE;
+	else if ((mrioc->reset_in_progress) || (mrioc->stop_bsgs))
+		adp_state = MPI3MR_BSG_ADPSTATE_IN_RESET;
+	else if (ioc_state == MRIOC_STATE_FAULT)
+		adp_state = MPI3MR_BSG_ADPSTATE_FAULT;
+	else
+		adp_state = MPI3MR_BSG_ADPSTATE_OPERATIONAL;
+
+	return snprintf(buf, PAGE_SIZE, "%u\n", adp_state);
+}
+
+static DEVICE_ATTR_RO(adp_state);
+
+static struct attribute *mpi3mr_host_attrs[] = {
+	&dev_attr_adp_state.attr,
+	NULL,
+};
+
+static const struct attribute_group mpi3mr_host_attr_group = {
+	.attrs = mpi3mr_host_attrs
+};
+
+const struct attribute_group *mpi3mr_host_groups[] = {
+	&mpi3mr_host_attr_group,
+	NULL,
+};
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 19298136edb6..89a4918c4a9e 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -4134,6 +4134,7 @@ static struct scsi_host_template mpi3mr_driver_template = {
 	.max_segment_size		= 0xffffffff,
 	.track_queue_depth		= 1,
 	.cmd_size			= sizeof(struct scmd_priv),
+	.shost_groups			= mpi3mr_host_groups,
 };
 
 /**
-- 
2.27.0


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  parent reply	other threads:[~2022-03-22 12:22 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-22 12:21 [PATCH 0/7] mpi3mr: add BSG interface support for controller management Sumit Saxena
2022-03-22 12:21 ` [PATCH 1/7] mpi3mr: add BSG device " Sumit Saxena
2022-03-22 12:21 ` [PATCH 2/7] mpi3mr: add support for driver commands Sumit Saxena
2022-03-23 13:35   ` Bart Van Assche
2022-03-25  5:25     ` Sumit Saxena
2022-03-22 12:21 ` [PATCH 3/7] mpi3mr: add support for MPT commands Sumit Saxena
2022-03-22 12:21 ` [PATCH 4/7] mpi3mr: add support for PEL commands Sumit Saxena
2022-03-22 12:21 ` Sumit Saxena [this message]
2022-03-22 12:21 ` [PATCH 6/7] mpi3mr: add support for nvme pass-through Sumit Saxena
2022-03-22 12:21 ` [PATCH 7/7] mpi3mr: update driver version to 8.0.0.69.0 Sumit Saxena

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