linux-kernel - [PATCH 4.17 235/324] scsi: qedf: Send the driver state to MFW

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Message-Id: <20180823075007.878702274@linuxfoundation.org>
Date:   Thu, 23 Aug 2018 09:55:01 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Saurav Kashyap <saurav.kashyap@...ium.com>,
        Chad Dupuis <chad.dupuis@...ium.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.17 235/324] scsi: qedf: Send the driver state to MFW

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Saurav Kashyap <saurav.kashyap@...ium.com>

[ Upstream commit 6ac174756dfc9884f08b23af840ca911155f5578 ]

Need to notify firmware when driver is loaded and unloaded.

Signed-off-by: Saurav Kashyap <saurav.kashyap@...ium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@...ium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/scsi/qedf/qedf_main.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3241,6 +3241,11 @@ static int __qedf_probe(struct pci_dev *
 
 	init_completion(&qedf->flogi_compl);
 
+	status = qed_ops->common->update_drv_state(qedf->cdev, true);
+	if (status)
+		QEDF_ERR(&(qedf->dbg_ctx),
+			"Failed to send drv state to MFW.\n");
+
 	memset(&link_params, 0, sizeof(struct qed_link_params));
 	link_params.link_up = true;
 	status = qed_ops->common->set_link(qedf->cdev, &link_params);
@@ -3289,6 +3294,7 @@ static int qedf_probe(struct pci_dev *pd
 static void __qedf_remove(struct pci_dev *pdev, int mode)
 {
 	struct qedf_ctx *qedf;
+	int rc;
 
 	if (!pdev) {
 		QEDF_ERR(NULL, "pdev is NULL.\n");
@@ -3383,6 +3389,12 @@ static void __qedf_remove(struct pci_dev
 		qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
 		pci_set_drvdata(pdev, NULL);
 	}
+
+	rc = qed_ops->common->update_drv_state(qedf->cdev, false);
+	if (rc)
+		QEDF_ERR(&(qedf->dbg_ctx),
+			"Failed to send drv state to MFW.\n");
+
 	qed_ops->common->slowpath_stop(qedf->cdev);
 	qed_ops->common->remove(qedf->cdev);