add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/net/rxrpc/protocol.h
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@@ -1,12 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /* packet.h: Rx packet layout and definitions
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  *
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  * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
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  * Written by David Howells (dhowells@redhat.com)
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version
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- * 2 of the License, or (at your option) any later version.
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  */
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 #ifndef _LINUX_RXRPC_PACKET_H
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@@ -93,6 +89,15 @@
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 #define RXRPC_JUMBO_DATALEN	1412	/* non-terminal jumbo packet data length */
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 #define RXRPC_JUMBO_SUBPKTLEN	(RXRPC_JUMBO_DATALEN + sizeof(struct rxrpc_jumbo_header))
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+/*
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+ * The maximum number of subpackets that can possibly fit in a UDP packet is:
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+ *
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+ *	((max_IP - IP_hdr - UDP_hdr) / RXRPC_JUMBO_SUBPKTLEN) + 1
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+ *	= ((65535 - 28 - 28) / 1416) + 1
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+ *	= 46 non-terminal packets and 1 terminal packet.
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+ */
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+#define RXRPC_MAX_NR_JUMBO	47
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+
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 /*****************************************************************************/
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 /*
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  * on-the-wire Rx ACK packet data payload