rtl8211F_led_control

hc

2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc

 kernel/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
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@@ -1,21 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  *  Copyright (C) 2013-2014 Chelsio Communications.  All rights reserved.
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  *
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  *  Written by Anish Bhatt (anish@chelsio.com)
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  *	       Casey Leedom (leedom@chelsio.com)
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- *
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- *  This program is free software; you can redistribute it and/or modify it
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- *  under the terms and conditions of the GNU General Public License,
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- *  version 2, as published by the Free Software Foundation.
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- *
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- *  This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- *  more details.
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- *
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- *  The full GNU General Public License is included in this distribution in
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- *  the file called "COPYING".
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- *
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  */
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 #include "cxgb4.h"
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@@ -114,6 +102,24 @@
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 	cxgb4_dcb_state_init(dev);
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 }
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+/* update the dcb port support, if version is IEEE then set it to
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+ * FW_PORT_DCB_VER_IEEE and if DCB_CAP_DCBX_VER_CEE is already set then
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+ * clear that. and if it is set to CEE then set dcb supported to
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+ * DCB_CAP_DCBX_VER_CEE & if DCB_CAP_DCBX_VER_IEEE is set, clear it
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+ */
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+static inline void cxgb4_dcb_update_support(struct port_dcb_info *dcb)
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+{
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+	if (dcb->dcb_version == FW_PORT_DCB_VER_IEEE) {
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+		if (dcb->supported & DCB_CAP_DCBX_VER_CEE)
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+			dcb->supported &= ~DCB_CAP_DCBX_VER_CEE;
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+		dcb->supported |= DCB_CAP_DCBX_VER_IEEE;
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+	} else if (dcb->dcb_version == FW_PORT_DCB_VER_CEE1D01) {
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+		if (dcb->supported & DCB_CAP_DCBX_VER_IEEE)
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+			dcb->supported &= ~DCB_CAP_DCBX_VER_IEEE;
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+		dcb->supported |= DCB_CAP_DCBX_VER_CEE;
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+	}
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+}
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+
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 /* Finite State machine for Data Center Bridging.
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  */
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 void cxgb4_dcb_state_fsm(struct net_device *dev,
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@@ -165,6 +171,15 @@
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 	}
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 	case CXGB4_DCB_STATE_FW_INCOMPLETE: {
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+		if (transition_to != CXGB4_DCB_INPUT_FW_DISABLED) {
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+			/* during this CXGB4_DCB_STATE_FW_INCOMPLETE state,
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+			 * check if the dcb version is changed (there can be
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+			 * mismatch in default config & the negotiated switch
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+			 * configuration at FW, so update the dcb support
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+			 * accordingly.
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+			 */
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+			cxgb4_dcb_update_support(dcb);
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+		}
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 		switch (transition_to) {
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 		case CXGB4_DCB_INPUT_FW_ENABLED: {
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 			/* we're alreaady in firmware DCB mode */