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iw_cxgb4: use listening ep tos when accepting new connections

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If the parent listening endpoint has a service type set, then use that
when setting up the connection.  This allows server-side applications to
mandate the tos for passive side connections via rdma_set_service_type()
on the listening endpoints.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Steve Wise 2019-02-01 12:44:37 -08:00 committed by Jason Gunthorpe
parent 926ba19b35
commit 7235ea227e
1 changed files with 7 additions and 2 deletions
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9
drivers/infiniband/hw/cxgb4/cm.c
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@ -2476,7 +2476,7 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
u16 peer_mss = ntohs(req->tcpopt.mss); u16 peer_mss = ntohs(req->tcpopt.mss);
int iptype; int iptype;
unsigned short hdrs; unsigned short hdrs;
u8 tos = PASS_OPEN_TOS_G(ntohl(req->tos_stid)); u8 tos;
parent_ep = (struct c4iw_ep *)get_ep_from_stid(dev, stid); parent_ep = (struct c4iw_ep *)get_ep_from_stid(dev, stid);
if (!parent_ep) { if (!parent_ep) {
@ -2490,6 +2490,11 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
goto reject; goto reject;
} }
if (parent_ep->com.cm_id->tos_set)
tos = parent_ep->com.cm_id->tos;
else
tos = PASS_OPEN_TOS_G(ntohl(req->tos_stid));
cxgb_get_4tuple(req, parent_ep->com.dev->rdev.lldi.adapter_type, cxgb_get_4tuple(req, parent_ep->com.dev->rdev.lldi.adapter_type,
&iptype, local_ip, peer_ip, &local_port, &peer_port); &iptype, local_ip, peer_ip, &local_port, &peer_port);
@ -2509,7 +2514,7 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
ntohs(peer_port), peer_mss); ntohs(peer_port), peer_mss);
dst = cxgb_find_route6(&dev->rdev.lldi, get_real_dev, dst = cxgb_find_route6(&dev->rdev.lldi, get_real_dev,
local_ip, peer_ip, local_port, peer_port, local_ip, peer_ip, local_port, peer_port,
PASS_OPEN_TOS_G(ntohl(req->tos_stid)), tos,
((struct sockaddr_in6 *) ((struct sockaddr_in6 *)
&parent_ep->com.local_addr)->sin6_scope_id); &parent_ep->com.local_addr)->sin6_scope_id);
} }