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IB/opa_vnic: Add routing control information 

Add protocol specific routing control information in the encapsulation
header as per the configuration.

Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Scott Franco <safranco@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Niranjana Vishwanathapura 2017-09-26 06:44:26 -07:00 committed by Doug Ledford
parent e82b7c388a
commit b209a368eb
4 changed files with 61 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c
View File

@ -406,6 +406,42 @@ u8 opa_vnic_get_vl(struct opa_vnic_adapter *adapter, struct sk_buff *skb)
return vl;
}
/* opa_vnic_get_rc - return the routing control */
static u8 opa_vnic_get_rc(struct __opa_veswport_info *info,
struct sk_buff *skb)
{
u8 proto, rout_ctrl;
switch (vlan_get_protocol(skb)) {
case htons(ETH_P_IPV6):
proto = ipv6_hdr(skb)->nexthdr;
if (proto == IPPROTO_TCP)
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc,
IPV6_TCP);
else if (proto == IPPROTO_UDP)
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc,
IPV6_UDP);
else
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc, IPV6);
break;
case htons(ETH_P_IP):
proto = ip_hdr(skb)->protocol;
if (proto == IPPROTO_TCP)
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc,
IPV4_TCP);
else if (proto == IPPROTO_UDP)
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc,
IPV4_UDP);
else
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc, IPV4);
break;
default:
rout_ctrl = OPA_VNIC_ENCAP_RC_EXT(info->vesw.rc, DEFAULT);
}
return rout_ctrl;
}
/* opa_vnic_calc_entropy - calculate the packet entropy */
u8 opa_vnic_calc_entropy(struct opa_vnic_adapter *adapter, struct sk_buff *skb)
{
@ -448,7 +484,7 @@ void opa_vnic_encap_skb(struct opa_vnic_adapter *adapter, struct sk_buff *skb)
{
struct __opa_veswport_info *info = &adapter->info;
struct opa_vnic_skb_mdata *mdata;
u8 def_port, sc, entropy, *hdr;
u8 def_port, sc, rc, entropy, *hdr;
u16 len, l4_hdr;
u32 dlid;
@ -459,6 +495,7 @@ void opa_vnic_encap_skb(struct opa_vnic_adapter *adapter, struct sk_buff *skb)
len = opa_vnic_wire_length(skb);
dlid = opa_vnic_get_dlid(adapter, skb, def_port);
sc = opa_vnic_get_sc(info, skb);
rc = opa_vnic_get_rc(info, skb);
l4_hdr = info->vesw.vesw_id;
mdata = skb_push(skb, sizeof(*mdata));
@ -471,6 +508,6 @@ void opa_vnic_encap_skb(struct opa_vnic_adapter *adapter, struct sk_buff *skb)
}
opa_vnic_make_header(hdr, info->vport.encap_slid, dlid, len,
info->vesw.pkey, entropy, sc, 0,
info->vesw.pkey, entropy, sc, rc,
OPA_VNIC_L4_ETHR, l4_hdr);
}

16
drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h
View File

@ -103,6 +103,17 @@
#define OPA_VNIC_ETH_LINK_UP 1
#define OPA_VNIC_ETH_LINK_DOWN 2
/* routing control */
#define OPA_VNIC_ENCAP_RC_DEFAULT 0
#define OPA_VNIC_ENCAP_RC_IPV4 4
#define OPA_VNIC_ENCAP_RC_IPV4_UDP 8
#define OPA_VNIC_ENCAP_RC_IPV4_TCP 12
#define OPA_VNIC_ENCAP_RC_IPV6 16
#define OPA_VNIC_ENCAP_RC_IPV6_TCP 20
#define OPA_VNIC_ENCAP_RC_IPV6_UDP 24
#define OPA_VNIC_ENCAP_RC_EXT(w, b) (((w) >> OPA_VNIC_ENCAP_RC_ ## b) & 0x7)
/**
* struct opa_vesw_info - OPA vnic switch information
* @fabric_id: 10-bit fabric id
@ -111,6 +122,7 @@
* @pkey: partition key
* @u_mcast_dlid: unknown multicast dlid
* @u_ucast_dlid: array of unknown unicast dlids
* @rc: routing control
* @eth_mtu: Ethernet MTU
*/
struct opa_vesw_info {
@ -127,7 +139,9 @@ struct opa_vesw_info {
__be32 u_mcast_dlid;
__be32 u_ucast_dlid[OPA_VESW_MAX_NUM_DEF_PORT];
u8 rsvd3[60];
__be32 rc;
u8 rsvd3[56];
__be16 eth_mtu;
u8 rsvd4[2];
} __packed;

4
drivers/infiniband/ulp/opa_vnic/opa_vnic_internal.h
View File

@ -89,7 +89,9 @@ struct __opa_vesw_info {
u32 u_mcast_dlid;
u32 u_ucast_dlid[OPA_VESW_MAX_NUM_DEF_PORT];
u8 rsvd3[60];
u32 rc;
u8 rsvd3[56];
u16 eth_mtu;
u8 rsvd4[2];
} __packed;

4
drivers/infiniband/ulp/opa_vnic/opa_vnic_vema_iface.c
View File

@ -176,6 +176,8 @@ void opa_vnic_get_vesw_info(struct opa_vnic_adapter *adapter,
for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++)
info->u_ucast_dlid[i] = cpu_to_be32(src->u_ucast_dlid[i]);
info->rc = cpu_to_be32(src->rc);
memcpy(info->rsvd3, src->rsvd3, ARRAY_SIZE(src->rsvd3));
info->eth_mtu = cpu_to_be16(src->eth_mtu);
memcpy(info->rsvd4, src->rsvd4, ARRAY_SIZE(src->rsvd4));
@ -208,6 +210,8 @@ void opa_vnic_set_vesw_info(struct opa_vnic_adapter *adapter,
for (i = 0; i < OPA_VESW_MAX_NUM_DEF_PORT; i++)
dst->u_ucast_dlid[i] = be32_to_cpu(info->u_ucast_dlid[i]);
dst->rc = be32_to_cpu(info->rc);
memcpy(dst->rsvd3, info->rsvd3, ARRAY_SIZE(info->rsvd3));
dst->eth_mtu = be16_to_cpu(info->eth_mtu);
memcpy(dst->rsvd4, info->rsvd4, ARRAY_SIZE(info->rsvd4));