Set IPv4 TOS and IPv6 traffic class field for RoCEv2 traffic in ibcore.
The current implementation assumes a static mapping between the TOS bits and the priority code point, PCP bits. MFC after: 1 week Sponsored by: Mellanox Technologies
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=336385
@ -2451,14 +2451,8 @@ static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
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static int iboe_tos_to_sl(struct net_device *ndev, int tos)
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{
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/* get service level, SL, from type of service, TOS */
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int sl = tos;
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/* range check input argument and map 1:1 */
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if (sl > 255)
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sl = 255;
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else if (sl < 0)
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sl = 0;
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/* get service level, SL, from IPv4 type of service, TOS */
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int sl = (tos >> 5) & 0x7;
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/* final mappings are done by the vendor specific drivers */
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return sl;
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@ -2543,6 +2537,7 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
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route->path_rec->pkey = cpu_to_be16(0xffff);
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route->path_rec->mtu_selector = IB_SA_EQ;
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route->path_rec->sl = iboe_tos_to_sl(ndev, id_priv->tos);
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route->path_rec->traffic_class = id_priv->tos;
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route->path_rec->mtu = iboe_get_mtu(ndev->if_mtu);
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route->path_rec->rate_selector = IB_SA_EQ;
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route->path_rec->rate = iboe_get_rate(ndev);
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