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authorDimitri Staessens <dimitri.staessens@ugent.be>2018-10-04 18:06:32 +0200
committerSander Vrijders <sander.vrijders@ugent.be>2018-10-05 09:07:47 +0200
commitb802b25ddfe6f1b6ecabe3ba70e3dac2e99e7a50 (patch)
tree94e787f0f0ca1f0254b3728b0156b2e3283d8518 /src/ipcpd/eth/eth.c
parent937adca2a718b160b6d42bb8a3f28d96321fdb49 (diff)
downloadouroboros-b802b25ddfe6f1b6ecabe3ba70e3dac2e99e7a50.tar.gz
ouroboros-b802b25ddfe6f1b6ecabe3ba70e3dac2e99e7a50.zip
lib: Pass qosspec at flow allocation
The flow allocator now passes the full qos specification to the endpoint, instead of just a cube. This is a more flexible architecture, as it makes QoS cubes internal to the layers. Adds endianness transforms for the flow allocator protocol in the normal IPCP. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Diffstat (limited to 'src/ipcpd/eth/eth.c')
-rw-r--r--src/ipcpd/eth/eth.c51
1 files changed, 37 insertions, 14 deletions
diff --git a/src/ipcpd/eth/eth.c b/src/ipcpd/eth/eth.c
index 44ef3756..6fd7b805 100644
--- a/src/ipcpd/eth/eth.c
+++ b/src/ipcpd/eth/eth.c
@@ -146,15 +146,27 @@
#define NAME_QUERY_REPLY 3
struct mgmt_msg {
- uint8_t code;
#if defined(BUILD_ETH_DIX)
uint16_t seid;
uint16_t deid;
#elif defined(BUILD_ETH_LLC)
uint8_t ssap;
uint8_t dsap;
+ /* QoS here for alignment */
+ uint8_t code;
+ uint8_t availability;
+#endif
+ /* QoS parameters from spec, aligned */
+ uint32_t loss;
+ uint64_t bandwidth;
+ uint32_t ber;
+ uint32_t max_gap;
+ uint32_t delay;
+ uint8_t in_order;
+#if defined (BUILD_ETH_DIX)
+ uint8_t code;
+ uint8_t availability;
#endif
- uint8_t qoscube;
int8_t response;
} __attribute__((packed));
@@ -433,7 +445,7 @@ static int eth_ipcp_alloc(const uint8_t * dst_addr,
uint8_t ssap,
#endif
const uint8_t * hash,
- qoscube_t cube)
+ qosspec_t qs)
{
uint8_t * buf;
struct mgmt_msg * msg;
@@ -453,7 +465,14 @@ static int eth_ipcp_alloc(const uint8_t * dst_addr,
#elif defined(BUILD_ETH_LLC)
msg->ssap = ssap;
#endif
- msg->qoscube = cube;
+
+ msg->delay = hton32(qs.delay);
+ msg->bandwidth = hton64(qs.bandwidth);
+ msg->availability = qs.availability;
+ msg->loss = hton32(qs.loss);
+ msg->ber = hton32(qs.ber);
+ msg->in_order = qs.in_order;
+ msg->max_gap = hton32(qs.max_gap);
memcpy(msg + 1, hash, ipcp_dir_hash_len());
@@ -523,7 +542,7 @@ static int eth_ipcp_req(uint8_t * r_addr,
uint8_t r_sap,
#endif
const uint8_t * dst,
- qoscube_t cube)
+ qosspec_t qs)
{
struct timespec ts = {0, ALLOC_TIMEO * MILLION};
struct timespec abstime;
@@ -547,7 +566,7 @@ static int eth_ipcp_req(uint8_t * r_addr,
}
/* reply to IRM, called under lock to prevent race */
- fd = ipcp_flow_req_arr(getpid(), dst, ipcp_dir_hash_len(), cube);
+ fd = ipcp_flow_req_arr(getpid(), dst, ipcp_dir_hash_len(), qs);
if (fd < 0) {
pthread_mutex_unlock(&ipcpi.alloc_lock);
log_err("Could not get new flow from IRMd.");
@@ -687,11 +706,20 @@ static int eth_ipcp_mgmt_frame(const uint8_t * buf,
uint8_t * r_addr)
{
struct mgmt_msg * msg;
+ qosspec_t qs;
msg = (struct mgmt_msg *) buf;
switch (msg->code) {
case FLOW_REQ:
+ qs.delay = ntoh32(msg->delay);
+ qs.bandwidth = ntoh64(msg->bandwidth);
+ qs.availability = msg->availability;
+ qs.loss = ntoh32(msg->loss);
+ qs.ber = ntoh32(msg->ber);
+ qs.in_order = msg->in_order;
+ qs.max_gap = ntoh32(msg->max_gap);
+
if (shim_data_reg_has(eth_data.shim_data,
buf + sizeof(*msg))) {
eth_ipcp_req(r_addr,
@@ -701,7 +729,7 @@ static int eth_ipcp_mgmt_frame(const uint8_t * buf,
msg->ssap,
#endif
buf + sizeof(*msg),
- msg->qoscube);
+ qs);
}
break;
case FLOW_REPLY:
@@ -1553,7 +1581,7 @@ static int eth_ipcp_query(const uint8_t * hash)
static int eth_ipcp_flow_alloc(int fd,
const uint8_t * hash,
- qoscube_t cube)
+ qosspec_t qs)
{
#ifdef BUILD_ETH_LLC
uint8_t ssap = 0;
@@ -1565,11 +1593,6 @@ static int eth_ipcp_flow_alloc(int fd,
assert(hash);
- if (cube > QOS_CUBE_DATA) {
- log_dbg("Unsupported QoS requested.");
- return -1;
- }
-
if (!shim_data_dir_has(eth_data.shim_data, hash)) {
log_err("Destination unreachable.");
return -1;
@@ -1597,7 +1620,7 @@ static int eth_ipcp_flow_alloc(int fd,
#elif defined(BUILD_ETH_LLC)
ssap,
#endif
- hash, cube) < 0) {
+ hash, qs) < 0) {
#ifdef BUILD_ETH_LLC
pthread_rwlock_wrlock(&eth_data.flows_lock);
bmp_release(eth_data.saps, eth_data.fd_to_ef[fd].sap);