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i40iw: Set TOS field in IP header

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Set the TOS field in IP header with the value passed in
from application. If there is mismatch between the remote
client's TOS and listener, set the listener Tos to the higher
of the two values.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Shiraz Saleem 2016-11-30 15:09:34 -06:00 committed by Doug Ledford
parent e0b010da87
commit 7eb2bde7f3
2 changed files with 22 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/infiniband/hw/i40iw/i40iw_cm.c
View File

@ -445,7 +445,7 @@ static struct i40iw_puda_buf *i40iw_form_cm_frame(struct i40iw_cm_node *cm_node,
iph->version = IPVERSION;
iph->ihl = 5; /* 5 * 4Byte words, IP headr len */
iph->tos = 0;
iph->tos = cm_node->tos;
iph->tot_len = htons(packetsize);
iph->id = htons(++cm_node->tcp_cntxt.loc_id);
@ -472,7 +472,8 @@ static struct i40iw_puda_buf *i40iw_form_cm_frame(struct i40iw_cm_node *cm_node,
ethh->h_proto = htons(ETH_P_IPV6);
}
ip6h->version = 6;
ip6h->flow_lbl[0] = 0;
ip6h->priority = cm_node->tos >> 4;
ip6h->flow_lbl[0] = cm_node->tos << 4;
ip6h->flow_lbl[1] = 0;
ip6h->flow_lbl[2] = 0;
ip6h->payload_len = htons(packetsize - sizeof(*ip6h));
@ -2141,9 +2142,18 @@ static struct i40iw_cm_node *i40iw_make_cm_node(
cm_node->vlan_id = cm_info->vlan_id;
if ((cm_node->vlan_id == I40IW_NO_VLAN) && iwdev->dcb)
cm_node->vlan_id = 0;
cm_node->tos = cm_info->tos;
cm_node->user_pri = cm_info->user_pri;
if (listener)
cm_node->user_pri = listener->user_pri;
if (listener) {
if (listener->tos != cm_info->tos)
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_DCB,
"application TOS[%d] and remote client TOS[%d] mismatch\n",
listener->tos, cm_info->tos);
cm_node->tos = max(listener->tos, cm_info->tos);
cm_node->user_pri = rt_tos2priority(cm_node->tos);
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_DCB, "listener: TOS:[%d] UP:[%d]\n",
cm_node->tos, cm_node->user_pri);
}
memcpy(cm_node->loc_addr, cm_info->loc_addr, sizeof(cm_node->loc_addr));
memcpy(cm_node->rem_addr, cm_info->rem_addr, sizeof(cm_node->rem_addr));
cm_node->loc_port = cm_info->loc_port;
@ -3092,6 +3102,7 @@ void i40iw_receive_ilq(struct i40iw_sc_dev *dev, struct i40iw_puda_buf *rbuf)
cm_info.loc_addr[0] = ntohl(iph->daddr);
cm_info.rem_addr[0] = ntohl(iph->saddr);
cm_info.ipv4 = true;
cm_info.tos = iph->tos;
} else {
ip6h = (struct ipv6hdr *)rbuf->iph;
i40iw_copy_ip_ntohl(cm_info.loc_addr,
@ -3099,6 +3110,7 @@ void i40iw_receive_ilq(struct i40iw_sc_dev *dev, struct i40iw_puda_buf *rbuf)
i40iw_copy_ip_ntohl(cm_info.rem_addr,
ip6h->saddr.in6_u.u6_addr32);
cm_info.ipv4 = false;
cm_info.tos = (ip6h->priority << 4) | (ip6h->flow_lbl[0] >> 4);
}
cm_info.loc_port = ntohs(tcph->dest);
cm_info.rem_port = ntohs(tcph->source);
@ -3331,6 +3343,7 @@ static void i40iw_cm_init_tsa_conn(struct i40iw_qp *iwqp,
cm_node->state = I40IW_CM_STATE_OFFLOADED;
tcp_info.tcp_state = I40IW_TCP_STATE_ESTABLISHED;
tcp_info.src_mac_addr_idx = iwdev->mac_ip_table_idx;
tcp_info.tos = cm_node->tos;
dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp, (u64 *)(iwqp->host_ctx.va), ctx_info);
@ -3763,6 +3776,7 @@ int i40iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
i40iw_netdev_vlan_ipv6(cm_info.loc_addr, &cm_info.vlan_id, NULL);
}
cm_info.cm_id = cm_id;
cm_info.tos = cm_id->tos;
cm_info.user_pri = rt_tos2priority(cm_id->tos);
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_DCB, "%s TOS:[%d] UP:[%d]\n",
__func__, cm_id->tos, cm_info.user_pri);
@ -3911,10 +3925,9 @@ int i40iw_create_listen(struct iw_cm_id *cm_id, int backlog)
cm_id->provider_data = cm_listen_node;
cm_listen_node->tos = cm_id->tos;
cm_listen_node->user_pri = rt_tos2priority(cm_id->tos);
cm_info.user_pri = cm_listen_node->user_pri;
i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_DCB, "%s TOS:[%d] UP:[%d]\n",
__func__, cm_id->tos, cm_listen_node->user_pri);
if (!cm_listen_node->reused_node) {
if (wildcard) {

3
drivers/infiniband/hw/i40iw/i40iw_cm.h
View File

@ -297,6 +297,7 @@ struct i40iw_cm_listener {
enum i40iw_cm_listener_state listener_state;
u32 reused_node;
u8 user_pri;
u8 tos;
u16 vlan_id;
bool qhash_set;
bool ipv4;
@ -343,6 +344,7 @@ struct i40iw_cm_node {
atomic_t passive_state;
bool qhash_set;
u8 user_pri;
u8 tos;
bool ipv4;
bool snd_mark_en;
u16 lsmm_size;
@ -368,6 +370,7 @@ struct i40iw_cm_info {
u16 vlan_id;
int backlog;
u8 user_pri;
u8 tos;
bool ipv4;
};