mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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de9c1a23ad
The patch corrects the NFP_NET_MAX_DSCP definition in the main.h file.
The incorrect definition result DSCP bits not being mapped properly when
DCB is set. When NFP_NET_MAX_DSCP was defined as 4, the next 60 DSCP
bits failed to be set.
Fixes: 9b7fe8046d ("nfp: add DCB IEEE support")
Cc: stable@vger.kernel.org
Signed-off-by: Huayu Chen <huayu.chen@corigine.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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/* Copyright (C) 2023 Corigine, Inc. */
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#ifndef __NFP_NIC_H__
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#define __NFP_NIC_H__ 1
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#include <linux/netdevice.h>
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#ifdef CONFIG_DCB
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/* DCB feature definitions */
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#define NFP_NET_MAX_DSCP 64
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#define NFP_NET_MAX_TC IEEE_8021QAZ_MAX_TCS
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#define NFP_NET_MAX_PRIO 8
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#define NFP_DCB_CFG_STRIDE 256
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struct nfp_dcb {
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u8 dscp2prio[NFP_NET_MAX_DSCP];
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u8 prio2tc[NFP_NET_MAX_PRIO];
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u8 tc2idx[IEEE_8021QAZ_MAX_TCS];
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u64 tc_maxrate[IEEE_8021QAZ_MAX_TCS];
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u8 tc_tx_pct[IEEE_8021QAZ_MAX_TCS];
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u8 tc_tsa[IEEE_8021QAZ_MAX_TCS];
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u8 dscp_cnt;
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u8 trust_status;
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bool rate_init;
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bool ets_init;
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struct nfp_cpp_area *dcbcfg_tbl_area;
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u8 __iomem *dcbcfg_tbl;
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u32 cfg_offset;
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};
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int nfp_nic_dcb_init(struct nfp_net *nn);
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void nfp_nic_dcb_clean(struct nfp_net *nn);
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#else
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static inline int nfp_nic_dcb_init(struct nfp_net *nn) { return 0; }
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static inline void nfp_nic_dcb_clean(struct nfp_net *nn) {}
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#endif
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struct nfp_app_nic_private {
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#ifdef CONFIG_DCB
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struct nfp_dcb dcb;
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#endif
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};
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#endif
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