Author: hselasky
Date: Tue Jul 17 09:32:09 2018
New Revision: 336385
URL: https://svnweb.freebsd.org/changeset/base/336385
Log:
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
Modified:
head/sys/ofed/drivers/infiniband/core/ib_cma.c
Modified: head/sys/ofed/drivers/infiniband/core/ib_cma.c
==============================================================================
--- head/sys/ofed/drivers/infiniband/core/ib_cma.c Tue Jul 17 09:30:32
2018 (r336384)
+++ head/sys/ofed/drivers/infiniband/core/ib_cma.c Tue Jul 17 09:32:09
2018 (r336385)
@@ -2451,15 +2451,9 @@ static int cma_resolve_iw_route(struct rdma_id_private
static int iboe_tos_to_sl(struct net_device *ndev, int tos)
{
- /* get service level, SL, from type of service, TOS */
- int sl = tos;
+ /* get service level, SL, from IPv4 type of service, TOS */
+ int sl = (tos >> 5) & 0x7;
- /* range check input argument and map 1:1 */
- if (sl > 255)
- sl = 255;
- else if (sl < 0)
- sl = 0;
-
/* final mappings are done by the vendor specific drivers */
return sl;
}
@@ -2543,6 +2537,7 @@ static int cma_resolve_iboe_route(struct rdma_id_priva
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);
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