From: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Date: Thu, 16 Apr 2020 01:43:10 -0700
Subject: scsi: qed: Send BW update notifications to the protocol drivers
Patch-mainline: v5.8-rc1
Git-commit: 699fed4a2d8e32d77d64928e570d7ffd93a62fdf
References: jsc#SLE-15143

Management firmware (MFW) sends a notification whenever there is a change
in the bandwidth values. Add driver support for sending this notification
to the upper layer drivers (e.g., qedf).

Link: https://lore.kernel.org/r/20200416084314.18851-6-skashyap@marvell.com
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/qlogic/qed/qed.h      |    1 +
 drivers/net/ethernet/qlogic/qed/qed_main.c |    9 +++++++++
 include/linux/qed/qed_if.h                 |    1 +
 3 files changed, 11 insertions(+)

--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -1014,6 +1014,7 @@ int qed_device_num_ports(struct qed_dev
 int qed_fill_dev_info(struct qed_dev *cdev,
 		      struct qed_dev_info *dev_info);
 void qed_link_update(struct qed_hwfn *hwfn, struct qed_ptt *ptt);
+void qed_bw_update(struct qed_hwfn *hwfn, struct qed_ptt *ptt);
 u32 qed_unzip_data(struct qed_hwfn *p_hwfn,
 		   u32 input_len, u8 *input_buf,
 		   u32 max_size, u8 *unzip_buf);
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -1949,6 +1949,15 @@ void qed_link_update(struct qed_hwfn *hw
 		op->link_update(cookie, &if_link);
 }
 
+void qed_bw_update(struct qed_hwfn *hwfn, struct qed_ptt *ptt)
+{
+	void *cookie = hwfn->cdev->ops_cookie;
+	struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
+
+	if (IS_LEAD_HWFN(hwfn) && cookie && op && op->bw_update)
+		op->bw_update(cookie);
+}
+
 static int qed_drain(struct qed_dev *cdev)
 {
 	struct qed_hwfn *hwfn;
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -829,6 +829,7 @@ struct qed_common_cb_ops {
 	void	(*dcbx_aen)(void *dev, struct qed_dcbx_get *get, u32 mib_type);
 	void (*get_generic_tlv_data)(void *dev, struct qed_generic_tlvs *data);
 	void (*get_protocol_tlv_data)(void *dev, void *data);
+	void (*bw_update)(void *dev);
 };
 
 struct qed_selftest_ops {