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Set IPv4 TOS and IPv6 traffic class field for RoCEv2 traffic in ibcore.

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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
This commit is contained in:
hselasky 2018-07-17 09:32:09 +00:00
parent 3d3da0ad3d
commit 3c382743d5
1 changed files with 3 additions and 8 deletions
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11
sys/ofed/drivers/infiniband/core/ib_cma.c
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@ -2451,14 +2451,8 @@ static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
static int iboe_tos_to_sl(struct net_device *ndev, int tos)
{
/* get service level, SL, from type of service, TOS */
int sl = tos;
/* range check input argument and map 1:1 */
if (sl > 255)
sl = 255;
else if (sl < 0)
sl = 0;
/* get service level, SL, from IPv4 type of service, TOS */
int sl = (tos >> 5) & 0x7;
/* final mappings are done by the vendor specific drivers */
return sl;
@ -2543,6 +2537,7 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
route->path_rec->pkey = cpu_to_be16(0xffff);
route->path_rec->mtu_selector = IB_SA_EQ;
route->path_rec->sl = iboe_tos_to_sl(ndev, id_priv->tos);
route->path_rec->traffic_class = id_priv->tos;
route->path_rec->mtu = iboe_get_mtu(ndev->if_mtu);
route->path_rec->rate_selector = IB_SA_EQ;
route->path_rec->rate = iboe_get_rate(ndev);