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    Subject[PATCH 5.10 152/221] octeontx2-af: Remove TOS field from MKEX TX
    Date
    From: Subbaraya Sundeep <sbhatta@marvell.com>

    [ Upstream commit ce86c2a531e2f2995ee55ea527c1f39ba1d95f73 ]

    The MKEX profile describes what packet fields need to be extracted from
    the input packet and how to place those packet fields in the output key
    for MCAM matching. The MKEX profile can be in a way where higher layer
    packet fields can overwrite lower layer packet fields in output MCAM
    Key.
    Hence MKEX profile is always ensured that there are no overlaps between
    any of the layers. But the commit 42006910b5ea
    ("octeontx2-af: cleanup KPU config data") introduced TX TOS field which
    overlaps with DMAC in MCAM key.
    This led to AF driver returning error when TX rule is installed with
    DMAC as match criteria since DMAC gets overwritten and cannot be
    supported. This patch fixes the issue by removing TOS field from MKEX TX
    profile.

    Fixes: 42006910b5ea ("octeontx2-af: cleanup KPU config data")
    Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
    Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
    Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h | 2 --
    1 file changed, 2 deletions(-)

    diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
    index 077efc5007dd..0e4af93be0fb 100644
    --- a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
    +++ b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
    @@ -13499,8 +13499,6 @@ static const struct npc_mcam_kex npc_mkex_default = {
    [NPC_LT_LC_IP] = {
    /* SIP+DIP: 8 bytes, KW2[63:0] */
    KEX_LD_CFG(0x07, 0xc, 0x1, 0x0, 0x10),
    - /* TOS: 1 byte, KW1[63:56] */
    - KEX_LD_CFG(0x0, 0x1, 0x1, 0x0, 0xf),
    },
    /* Layer C: IPv6 */
    [NPC_LT_LC_IP6] = {
    --
    2.30.1


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