[dpdk-dev] [PATCH 2/5] bonding: add read/write lock to rx/tx burst functions
Bernard Iremonger
bernard.iremonger at intel.com
Thu May 5 17:14:57 CEST 2016
Signed-off-by: Bernard Iremonger <bernard.iremonger at intel.com>
---
drivers/net/bonding/rte_eth_bond_pmd.c | 112 +++++++++++++++++++++++++--------
1 file changed, 85 insertions(+), 27 deletions(-)
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index ed6245b..c3e772c 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -92,7 +92,7 @@ bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
internals = bd_rx_q->dev_private;
-
+ rte_rwlock_read_lock(&internals->rwlock);
for (i = 0; i < internals->active_slave_count && nb_pkts; i++) {
/* Offset of pointer to *bufs increases as packets are received
* from other slaves */
@@ -103,6 +103,7 @@ bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
nb_pkts -= num_rx_slave;
}
}
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_rx_total;
}
@@ -112,14 +113,20 @@ bond_ethdev_rx_burst_active_backup(void *queue, struct rte_mbuf **bufs,
uint16_t nb_pkts)
{
struct bond_dev_private *internals;
+ uint16_t num_rx_total;
/* Cast to structure, containing bonded device's port id and queue id */
struct bond_rx_queue *bd_rx_q = (struct bond_rx_queue *)queue;
internals = bd_rx_q->dev_private;
+ rte_rwlock_read_lock(&internals->rwlock);
+
+ num_rx_total = rte_eth_rx_burst(internals->current_primary_port,
+ bd_rx_q->queue_id, bufs, nb_pkts);
- return rte_eth_rx_burst(internals->current_primary_port,
- bd_rx_q->queue_id, bufs, nb_pkts);
+ rte_rwlock_read_unlock(&internals->rwlock);
+
+ return num_rx_total;
}
static uint16_t
@@ -149,12 +156,17 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
memcpy(slaves, internals->active_slaves,
sizeof(internals->active_slaves[0]) * slave_count);
- for (i = 0; i < slave_count && num_rx_total < nb_pkts; i++) {
+ rte_rwlock_read_lock(&internals->rwlock);
+ for (i = 0; i < internals->active_slave_count && num_rx_total < nb_pkts;
+ i++) {
j = num_rx_total;
- collecting = ACTOR_STATE(&mode_8023ad_ports[slaves[i]], COLLECTING);
+ collecting = ACTOR_STATE(
+ &mode_8023ad_ports[internals->active_slaves[i]],
+ COLLECTING);
/* Read packets from this slave */
- num_rx_total += rte_eth_rx_burst(slaves[i], bd_rx_q->queue_id,
+ num_rx_total += rte_eth_rx_burst(internals->active_slaves[i],
+ bd_rx_q->queue_id,
&bufs[num_rx_total], nb_pkts - num_rx_total);
for (k = j; k < 2 && k < num_rx_total; k++)
@@ -175,7 +187,9 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
!is_same_ether_addr(&bond_mac, &hdr->d_addr)))) {
if (hdr->ether_type == ether_type_slow_be) {
- bond_mode_8023ad_handle_slow_pkt(internals, slaves[i],
+ bond_mode_8023ad_handle_slow_pkt(
+ internals,
+ internals->active_slaves[i],
bufs[j]);
} else
rte_pktmbuf_free(bufs[j]);
@@ -190,6 +204,7 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
j++;
}
}
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_rx_total;
}
@@ -408,12 +423,14 @@ bond_ethdev_tx_burst_round_robin(void *queue, struct rte_mbuf **bufs,
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
+ rte_rwlock_read_lock(&internals->rwlock);
num_of_slaves = internals->active_slave_count;
memcpy(slaves, internals->active_slaves,
sizeof(internals->active_slaves[0]) * num_of_slaves);
-
- if (num_of_slaves < 1)
+ if (num_of_slaves < 1) {
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
+ }
/* Populate slaves mbuf with which packets are to be sent on it */
for (i = 0; i < nb_pkts; i++) {
@@ -428,8 +445,10 @@ bond_ethdev_tx_burst_round_robin(void *queue, struct rte_mbuf **bufs,
/* Send packet burst on each slave device */
for (i = 0; i < num_of_slaves; i++) {
if (slave_nb_pkts[i] > 0) {
- num_tx_slave = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
- slave_bufs[i], slave_nb_pkts[i]);
+ num_tx_slave = rte_eth_tx_burst(
+ internals->active_slaves[i],
+ bd_tx_q->queue_id, slave_bufs[i],
+ slave_nb_pkts[i]);
/* if tx burst fails move packets to end of bufs */
if (unlikely(num_tx_slave < slave_nb_pkts[i])) {
@@ -444,6 +463,7 @@ bond_ethdev_tx_burst_round_robin(void *queue, struct rte_mbuf **bufs,
num_tx_total += num_tx_slave;
}
}
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
}
@@ -454,15 +474,23 @@ bond_ethdev_tx_burst_active_backup(void *queue,
{
struct bond_dev_private *internals;
struct bond_tx_queue *bd_tx_q;
+ uint16_t num_tx_total;
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
- if (internals->active_slave_count < 1)
+ rte_rwlock_read_lock(&internals->rwlock);
+ if (internals->active_slave_count < 1) {
+ rte_rwlock_read_unlock(&internals->rwlock);
return 0;
+ }
+
+ num_tx_total = rte_eth_tx_burst(internals->current_primary_port,
+ bd_tx_q->queue_id, bufs, nb_pkts);
- return rte_eth_tx_burst(internals->current_primary_port, bd_tx_q->queue_id,
- bufs, nb_pkts);
+ rte_rwlock_read_unlock(&internals->rwlock);
+
+ return num_tx_total;
}
static inline uint16_t
@@ -693,16 +721,19 @@ bond_ethdev_tx_burst_tlb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
&rte_eth_devices[internals->primary_port];
uint16_t num_tx_total = 0;
uint8_t i, j;
-
- uint8_t num_of_slaves = internals->active_slave_count;
+ uint8_t num_of_slaves;
uint8_t slaves[RTE_MAX_ETHPORTS];
struct ether_hdr *ether_hdr;
struct ether_addr primary_slave_addr;
struct ether_addr active_slave_addr;
- if (num_of_slaves < 1)
+ rte_rwlock_read_lock(&internals->rwlock);
+ num_of_slaves = internals->active_slave_count;
+ if (num_of_slaves < 1) {
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
+ }
memcpy(slaves, internals->tlb_slaves_order,
sizeof(internals->tlb_slaves_order[0]) * num_of_slaves);
@@ -716,7 +747,8 @@ bond_ethdev_tx_burst_tlb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
}
for (i = 0; i < num_of_slaves; i++) {
- rte_eth_macaddr_get(slaves[i], &active_slave_addr);
+ rte_eth_macaddr_get(internals->tlb_slaves_order[i],
+ &active_slave_addr);
for (j = num_tx_total; j < nb_pkts; j++) {
if (j + 3 < nb_pkts)
rte_prefetch0(rte_pktmbuf_mtod(bufs[j+3], void*));
@@ -729,12 +761,15 @@ bond_ethdev_tx_burst_tlb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
#endif
}
- num_tx_total += rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
+ num_tx_total += rte_eth_tx_burst(
+ internals->tlb_slaves_order[i],
+ bd_tx_q->queue_id,
bufs + num_tx_total, nb_pkts - num_tx_total);
if (num_tx_total == nb_pkts)
break;
}
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
}
@@ -836,6 +871,8 @@ bond_ethdev_tx_burst_alb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
internals->mode6.ntt = 0;
}
+ rte_rwlock_read_lock(&internals->rwlock);
+
/* Send ARP packets on proper slaves */
for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
if (slave_bufs_pkts[i] > 0) {
@@ -876,6 +913,8 @@ bond_ethdev_tx_burst_alb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
}
}
+ rte_rwlock_read_unlock(&internals->rwlock);
+
/* Send non-ARP packets using tlb policy */
if (slave_bufs_pkts[RTE_MAX_ETHPORTS] > 0) {
num_send = bond_ethdev_tx_burst_tlb(queue,
@@ -916,12 +955,16 @@ bond_ethdev_tx_burst_balance(void *queue, struct rte_mbuf **bufs,
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
+ rte_rwlock_read_lock(&internals->rwlock);
num_of_slaves = internals->active_slave_count;
+
memcpy(slaves, internals->active_slaves,
sizeof(internals->active_slaves[0]) * num_of_slaves);
- if (num_of_slaves < 1)
+ if (num_of_slaves < 1) {
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
+ }
/* Populate slaves mbuf with the packets which are to be sent on it */
for (i = 0; i < nb_pkts; i++) {
@@ -935,7 +978,9 @@ bond_ethdev_tx_burst_balance(void *queue, struct rte_mbuf **bufs,
/* Send packet burst on each slave device */
for (i = 0; i < num_of_slaves; i++) {
if (slave_nb_pkts[i] > 0) {
- num_tx_slave = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
+ num_tx_slave = rte_eth_tx_burst(
+ internals->active_slaves[i],
+ bd_tx_q->queue_id,
slave_bufs[i], slave_nb_pkts[i]);
/* if tx burst fails move packets to end of bufs */
@@ -952,6 +997,7 @@ bond_ethdev_tx_burst_balance(void *queue, struct rte_mbuf **bufs,
}
}
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
}
@@ -986,15 +1032,20 @@ bond_ethdev_tx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
+ rte_rwlock_read_lock(&internals->rwlock);
num_of_slaves = internals->active_slave_count;
- if (num_of_slaves < 1)
+ if (num_of_slaves < 1) {
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
+ }
memcpy(slaves, internals->active_slaves, sizeof(slaves[0]) * num_of_slaves);
distributing_count = 0;
for (i = 0; i < num_of_slaves; i++) {
- struct port *port = &mode_8023ad_ports[slaves[i]];
+ struct port *port;
+
+ port = &mode_8023ad_ports[internals->active_slaves[i]];
slave_slow_nb_pkts[i] = rte_ring_dequeue_burst(port->tx_ring,
slow_pkts, BOND_MODE_8023AX_SLAVE_TX_PKTS);
@@ -1026,7 +1077,8 @@ bond_ethdev_tx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
if (slave_nb_pkts[i] == 0)
continue;
- num_tx_slave = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
+ num_tx_slave = rte_eth_tx_burst(
+ internals->active_slaves[i], bd_tx_q->queue_id,
slave_bufs[i], slave_nb_pkts[i]);
/* If tx burst fails drop slow packets */
@@ -1044,6 +1096,7 @@ bond_ethdev_tx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
}
}
+ rte_rwlock_read_unlock(&internals->rwlock);
return num_tx_total;
}
@@ -1067,12 +1120,15 @@ bond_ethdev_tx_burst_broadcast(void *queue, struct rte_mbuf **bufs,
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
+ rte_rwlock_read_lock(&internals->rwlock);
num_of_slaves = internals->active_slave_count;
memcpy(slaves, internals->active_slaves,
sizeof(internals->active_slaves[0]) * num_of_slaves);
- if (num_of_slaves < 1)
+ if (num_of_slaves < 1) {
+ rte_rwlock_read_unlock(&internals->rwlock);
return 0;
+ }
/* Increment reference count on mbufs */
for (i = 0; i < nb_pkts; i++)
@@ -1080,8 +1136,9 @@ bond_ethdev_tx_burst_broadcast(void *queue, struct rte_mbuf **bufs,
/* Transmit burst on each active slave */
for (i = 0; i < num_of_slaves; i++) {
- slave_tx_total[i] = rte_eth_tx_burst(slaves[i], bd_tx_q->queue_id,
- bufs, nb_pkts);
+ slave_tx_total[i] = rte_eth_tx_burst(
+ internals->active_slaves[i],
+ bd_tx_q->queue_id, bufs, nb_pkts);
if (unlikely(slave_tx_total[i] < nb_pkts))
tx_failed_flag = 1;
@@ -1104,6 +1161,7 @@ bond_ethdev_tx_burst_broadcast(void *queue, struct rte_mbuf **bufs,
while (slave_tx_total[i] < nb_pkts)
rte_pktmbuf_free(bufs[slave_tx_total[i]++]);
+ rte_rwlock_read_unlock(&internals->rwlock);
return max_nb_of_tx_pkts;
}
--
2.6.3
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