241fe395e8
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memcpy(), memmove(), and memset(), avoid intentionally writing across neighboring fields. Use struct_group() around members queue_id, min_bw, max_bw, tsa, pri_lvl, and bw_weight so they can be referenced together. This will allow memcpy() and sizeof() to more easily reason about sizes, improve readability, and avoid future warnings about writing beyond the end of queue_id. "pahole" shows no size nor member offset changes to struct bnxt_cos2bw_cfg. "objdump -d" shows no meaningful object code changes (i.e. only source line number induced differences and optimizations). Cc: Michael Chan <michael.chan@broadcom.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/lkml/CACKFLinDc6Y+P8eZ=450yA1nMC7swTURLtcdyiNR=9J6dfFyBg@mail.gmail.com Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/lkml/20210728044517.GE35706@embeddedor
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/* Broadcom NetXtreme-C/E network driver.
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*
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* Copyright (c) 2014-2016 Broadcom Corporation
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* Copyright (c) 2016-2018 Broadcom Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*/
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#ifndef BNXT_DCB_H
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#define BNXT_DCB_H
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#include <net/dcbnl.h>
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struct bnxt_dcb {
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u8 max_tc;
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struct ieee_pfc *ieee_pfc;
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struct ieee_ets *ieee_ets;
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u8 dcbx_cap;
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u8 default_pri;
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};
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struct bnxt_cos2bw_cfg {
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u8 pad[3];
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struct_group_attr(cfg, __packed,
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u8 queue_id;
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__le32 min_bw;
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__le32 max_bw;
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#define BW_VALUE_UNIT_PERCENT1_100 (0x1UL << 29)
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u8 tsa;
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u8 pri_lvl;
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u8 bw_weight;
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);
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u8 unused;
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};
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struct bnxt_dscp2pri_entry {
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u8 dscp;
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u8 mask;
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u8 pri;
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};
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#define BNXT_LLQ(q_profile) \
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((q_profile) == \
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QUEUE_QPORTCFG_RESP_QUEUE_ID0_SERVICE_PROFILE_LOSSLESS_ROCE)
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#define BNXT_CNPQ(q_profile) \
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((q_profile) == \
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QUEUE_QPORTCFG_RESP_QUEUE_ID0_SERVICE_PROFILE_LOSSY_ROCE_CNP)
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#define HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL 0x0300
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void bnxt_dcb_init(struct bnxt *bp);
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void bnxt_dcb_free(struct bnxt *bp);
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#endif
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