Commit 6e7c8eea authored by Saurav Kashyap's avatar Saurav Kashyap Committed by Martin K. Petersen
Browse files

scsi: qedf: Implement callback for bw_update 

Add support for the common qed bw_update callback to qedf.  This function
is called whenever there is a reported change in the bandwidth and updates
corresponding values in sysfs.

Link: https://lore.kernel.org/r/20200416084314.18851-7-skashyap@marvell.com


Signed-off-by: default avatarSaurav Kashyap <skashyap@marvell.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 699fed4a

drivers/scsi/qedf/qedf_main.c

+27 −0
Original line number Diff line number Diff line
@@ -509,6 +509,32 @@ static void qedf_update_link_speed(struct qedf_ctx *qedf, 
	fc_host_supported_speeds(lport->host) = lport->link_supported_speeds;

}



static void qedf_bw_update(void *dev)

{

	struct qedf_ctx *qedf = (struct qedf_ctx *)dev;

	struct qed_link_output link;



	/* Get the latest status of the link */

	qed_ops->common->get_link(qedf->cdev, &link);



	if (test_bit(QEDF_UNLOADING, &qedf->flags)) {

		QEDF_ERR(&qedf->dbg_ctx,

			 "Ignore link update, driver getting unload.\n");

		return;

	}



	if (link.link_up) {

		if (atomic_read(&qedf->link_state) == QEDF_LINK_UP)

			qedf_update_link_speed(qedf, &link);

		else

			QEDF_ERR(&qedf->dbg_ctx,

				 "Ignore bw update, link is down.\n");



	} else {

		QEDF_ERR(&qedf->dbg_ctx, "link_up is not set.\n");

	}

}



static void qedf_link_update(void *dev, struct qed_link_output *link)

{

	struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
@@ -635,6 +661,7 @@ static u32 qedf_get_login_failures(void *cookie) 
static struct qed_fcoe_cb_ops qedf_cb_ops = {

	{

		.link_update = qedf_link_update,

		.bw_update = qedf_bw_update,

		.dcbx_aen = qedf_dcbx_handler,

		.get_generic_tlv_data = qedf_get_generic_tlv_data,

		.get_protocol_tlv_data = qedf_get_protocol_tlv_data,