[dpdk-dev] [PATCH 6/8] bond: handle slaves with fewer queues than bonding device
Stephen Hemminger
stephen at networkplumber.org
Fri Dec 4 18:14:18 CET 2015
From: Eric Kinzie <ekinzie at brocade.com>
In the event that the bonding device has a greater number of tx and/or rx
queues than the slave being added, track the queue limits of the slave.
On receive, ignore queue identifiers beyond what the slave interface
can support. During transmit, pick a different queue id to use if the
intended queue is not available on the slave.
Signed-off-by: Eric Kinzie <ekinzie at brocade.com>
Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
drivers/net/bonding/rte_eth_bond_api.c | 6 +-
drivers/net/bonding/rte_eth_bond_pmd.c | 141 +++++++++++++++++++++++++----
drivers/net/bonding/rte_eth_bond_private.h | 5 +-
3 files changed, 129 insertions(+), 23 deletions(-)
diff --git a/drivers/net/bonding/rte_eth_bond_api.c b/drivers/net/bonding/rte_eth_bond_api.c
index 630a461..64058ff 100644
--- a/drivers/net/bonding/rte_eth_bond_api.c
+++ b/drivers/net/bonding/rte_eth_bond_api.c
@@ -340,11 +340,11 @@ __eth_bond_slave_add_lock_free(uint8_t bonded_port_id, uint8_t slave_port_id)
slave_eth_dev = &rte_eth_devices[slave_port_id];
- /* Add slave details to bonded device */
- slave_add(internals, slave_eth_dev);
-
rte_eth_dev_info_get(slave_port_id, &dev_info);
+ /* Add slave details to bonded device */
+ slave_add(internals, slave_eth_dev, &dev_info);
+
/* We need to store slaves reta_size to be able to synchronize RETA for all
* slave devices even if its sizes are different.
*/
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index 77582dd..868e66b 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -76,6 +76,47 @@ get_vlan_offset(struct ether_hdr *eth_hdr, uint16_t *proto)
return vlan_offset;
}
+static uint8_t
+bond_active_slaves_by_rxqid(struct bond_dev_private *internals, int queue_id,
+ uint8_t slaves[])
+{
+ struct bond_slave_details *slave_details;
+ uint8_t num_of_slaves;
+ uint8_t i = 0;
+
+ 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 || internals->kvlist)
+ return num_of_slaves;
+
+ /* remove slaves that don't have a queue numbered "queue_id" */
+ while (i < num_of_slaves) {
+ slave_details = &internals->slaves[i];
+ if (unlikely(queue_id >= slave_details->nb_rx_queues)) {
+ slaves[i] = slaves[num_of_slaves-1];
+ num_of_slaves--;
+ } else
+ i++;
+ }
+
+ return num_of_slaves;
+}
+
+static int
+bond_slave_txqid(struct bond_dev_private *internals, uint8_t slave_id,
+ int queue_id)
+{
+ struct bond_slave_details *slave_details;
+
+ if (internals->kvlist)
+ return queue_id;
+
+ slave_details = &internals->slaves[slave_id];
+ return queue_id % slave_details->nb_tx_queues;
+}
+
static uint16_t
bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
{
@@ -83,6 +124,8 @@ bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
uint16_t num_rx_slave = 0;
uint16_t num_rx_total = 0;
+ uint8_t slaves[RTE_MAX_ETHPORTS];
+ uint8_t num_of_slaves;
int i;
@@ -91,11 +134,13 @@ bond_ethdev_rx_burst(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
internals = bd_rx_q->dev_private;
+ num_of_slaves = bond_active_slaves_by_rxqid(internals, bd_rx_q->queue_id,
+ slaves);
- for (i = 0; i < internals->active_slave_count && nb_pkts; i++) {
+ for (i = 0; i < num_of_slaves && nb_pkts; i++) {
/* Offset of pointer to *bufs increases as packets are received
* from other slaves */
- num_rx_slave = rte_eth_rx_burst(internals->active_slaves[i],
+ num_rx_slave = rte_eth_rx_burst(slaves[i],
bd_rx_q->queue_id, bufs + num_rx_total, nb_pkts);
if (num_rx_slave) {
num_rx_total += num_rx_slave;
@@ -117,8 +162,13 @@ bond_ethdev_rx_burst_active_backup(void *queue, struct rte_mbuf **bufs,
internals = bd_rx_q->dev_private;
- return rte_eth_rx_burst(internals->current_primary_port,
- bd_rx_q->queue_id, bufs, nb_pkts);
+ uint8_t active_slave = internals->current_primary_port;
+ struct rte_eth_dev *dev = &rte_eth_devices[active_slave];
+
+ if (bd_rx_q->queue_id >= dev->data->nb_rx_queues)
+ return 0;
+
+ return rte_eth_rx_burst(active_slave, bd_rx_q->queue_id, bufs, nb_pkts);
}
static uint16_t
@@ -144,9 +194,9 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
rte_eth_macaddr_get(internals->port_id, &bond_mac);
/* Copy slave list to protect against slave up/down changes during tx
* bursting */
- slave_count = internals->active_slave_count;
- memcpy(slaves, internals->active_slaves,
- sizeof(internals->active_slaves[0]) * slave_count);
+
+ slave_count = bond_active_slaves_by_rxqid(internals, bd_rx_q->queue_id,
+ slaves);
for (i = 0; i < slave_count && num_rx_total < nb_pkts; i++) {
j = num_rx_total;
@@ -401,6 +451,7 @@ bond_ethdev_tx_burst_round_robin(void *queue, struct rte_mbuf **bufs,
static int slave_idx = 0;
int i, cslave_idx = 0, tx_fail_total = 0;
+ int queue_id;
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
@@ -427,7 +478,9 @@ 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,
+ queue_id = bond_slave_txqid(internals, i,
+ bd_tx_q->queue_id);
+ num_tx_slave = rte_eth_tx_burst(slaves[i], queue_id,
slave_bufs[i], slave_nb_pkts[i]);
/* if tx burst fails move packets to end of bufs */
@@ -453,14 +506,27 @@ bond_ethdev_tx_burst_active_backup(void *queue,
{
struct bond_dev_private *internals;
struct bond_tx_queue *bd_tx_q;
+ int queue_id;
+ int i;
+ uint8_t num_of_slaves;
+ uint8_t slaves[RTE_MAX_ETHPORTS];
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
- if (internals->active_slave_count < 1)
+ 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)
return 0;
- return rte_eth_tx_burst(internals->current_primary_port, bd_tx_q->queue_id,
+ for (i = 0; i < num_of_slaves; i++)
+ if (slaves[i] == internals->current_primary_port)
+ break;
+
+ queue_id = bond_slave_txqid(internals, i, bd_tx_q->queue_id);
+ return rte_eth_tx_burst(internals->current_primary_port, queue_id,
bufs, nb_pkts);
}
@@ -696,6 +762,7 @@ bond_ethdev_tx_burst_tlb(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
struct ether_hdr *ether_hdr;
struct ether_addr primary_slave_addr;
struct ether_addr active_slave_addr;
+ int queue_id;
if (num_of_slaves < 1)
return num_tx_total;
@@ -725,7 +792,8 @@ 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,
+ queue_id = bond_slave_txqid(internals, i, bd_tx_q->queue_id);
+ num_tx_total += rte_eth_tx_burst(slaves[i], queue_id,
bufs + num_tx_total, nb_pkts - num_tx_total);
if (num_tx_total == nb_pkts)
@@ -903,6 +971,7 @@ bond_ethdev_tx_burst_balance(void *queue, struct rte_mbuf **bufs,
uint16_t num_tx_total = 0, num_tx_slave = 0, tx_fail_total = 0;
int i, op_slave_id;
+ int queue_id;
struct rte_mbuf *slave_bufs[RTE_MAX_ETHPORTS][nb_pkts];
uint16_t slave_nb_pkts[RTE_MAX_ETHPORTS] = { 0 };
@@ -931,7 +1000,9 @@ 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,
+ queue_id = bond_slave_txqid(internals, i,
+ bd_tx_q->queue_id);
+ num_tx_slave = rte_eth_tx_burst(slaves[i], queue_id,
slave_bufs[i], slave_nb_pkts[i]);
/* if tx burst fails move packets to end of bufs */
@@ -977,6 +1048,8 @@ bond_ethdev_tx_burst_8023ad(void *queue, struct rte_mbuf **bufs,
/* Slow packets placed in each slave */
uint8_t slave_slow_nb_pkts[RTE_MAX_ETHPORTS] = { 0 };
+ int queue_id;
+
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
@@ -1022,7 +1095,8 @@ 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,
+ queue_id = bond_slave_txqid(internals, i, bd_tx_q->queue_id);
+ num_tx_slave = rte_eth_tx_burst(slaves[i], queue_id,
slave_bufs[i], slave_nb_pkts[i]);
/* If tx burst fails drop slow packets */
@@ -1057,6 +1131,7 @@ bond_ethdev_tx_burst_broadcast(void *queue, struct rte_mbuf **bufs,
int slave_tx_total[RTE_MAX_ETHPORTS];
int i, most_successful_tx_slave = -1;
+ int queue_id;
bd_tx_q = (struct bond_tx_queue *)queue;
internals = bd_tx_q->dev_private;
@@ -1076,7 +1151,8 @@ 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,
+ queue_id = bond_slave_txqid(internals, i, bd_tx_q->queue_id);
+ slave_tx_total[i] = rte_eth_tx_burst(slaves[i], queue_id,
bufs, nb_pkts);
if (unlikely(slave_tx_total[i] < nb_pkts))
@@ -1298,9 +1374,22 @@ int
slave_configure(struct rte_eth_dev *bonded_eth_dev,
struct rte_eth_dev *slave_eth_dev)
{
+ struct bond_dev_private *internals;
struct bond_rx_queue *bd_rx_q;
struct bond_tx_queue *bd_tx_q;
+ int slave_id;
+
+ internals = bonded_eth_dev->data->dev_private;
+ for (slave_id = 0; slave_id < internals->slave_count; slave_id++)
+ if (internals->slaves[slave_id].port_id ==
+ slave_eth_dev->data->port_id)
+ break;
+
+ RTE_VERIFY(slave_id != internals->slave_count);
+
+ uint16_t nb_rx_queues = internals->slaves[slave_id].nb_rx_queues;
+ uint16_t nb_tx_queues = internals->slaves[slave_id].nb_tx_queues;
int errval;
uint16_t q_id;
@@ -1331,8 +1420,7 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
/* Configure device */
errval = rte_eth_dev_configure(slave_eth_dev->data->port_id,
- bonded_eth_dev->data->nb_rx_queues,
- bonded_eth_dev->data->nb_tx_queues,
+ nb_rx_queues, nb_tx_queues,
&(slave_eth_dev->data->dev_conf));
if (errval != 0) {
RTE_BOND_LOG(ERR, "Cannot configure slave device: port %u , err (%d)",
@@ -1343,7 +1431,7 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
/* Setup Rx Queues */
/* Use existing queues, if any */
for (q_id = slave_eth_dev->data->nb_rx_queues;
- q_id < bonded_eth_dev->data->nb_rx_queues; q_id++) {
+ q_id < nb_rx_queues ; q_id++) {
bd_rx_q = (struct bond_rx_queue *)bonded_eth_dev->data->rx_queues[q_id];
errval = rte_eth_rx_queue_setup(slave_eth_dev->data->port_id, q_id,
@@ -1361,7 +1449,7 @@ slave_configure(struct rte_eth_dev *bonded_eth_dev,
/* Setup Tx Queues */
/* Use existing queues, if any */
for (q_id = slave_eth_dev->data->nb_tx_queues;
- q_id < bonded_eth_dev->data->nb_tx_queues; q_id++) {
+ q_id < nb_tx_queues ; q_id++) {
bd_tx_q = (struct bond_tx_queue *)bonded_eth_dev->data->tx_queues[q_id];
errval = rte_eth_tx_queue_setup(slave_eth_dev->data->port_id, q_id,
@@ -1440,7 +1528,8 @@ bond_ethdev_slave_link_status_change_monitor(void *cb_arg);
void
slave_add(struct bond_dev_private *internals,
- struct rte_eth_dev *slave_eth_dev)
+ struct rte_eth_dev *slave_eth_dev,
+ const struct rte_eth_dev_info *slave_dev_info)
{
struct bond_slave_details *slave_details =
&internals->slaves[internals->slave_count];
@@ -1448,6 +1537,20 @@ slave_add(struct bond_dev_private *internals,
slave_details->port_id = slave_eth_dev->data->port_id;
slave_details->last_link_status = 0;
+ uint16_t bond_nb_rx_queues =
+ rte_eth_devices[internals->port_id].data->nb_rx_queues;
+ uint16_t bond_nb_tx_queues =
+ rte_eth_devices[internals->port_id].data->nb_tx_queues;
+
+ slave_details->nb_rx_queues =
+ bond_nb_rx_queues > slave_dev_info->max_rx_queues
+ ? slave_dev_info->max_rx_queues
+ : bond_nb_rx_queues;
+ slave_details->nb_tx_queues =
+ bond_nb_tx_queues > slave_dev_info->max_tx_queues
+ ? slave_dev_info->max_tx_queues
+ : bond_nb_tx_queues;
+
/* If slave device doesn't support interrupts then we need to enabled
* polling to monitor link status */
if (!(slave_eth_dev->data->dev_flags & RTE_PCI_DRV_INTR_LSC)) {
diff --git a/drivers/net/bonding/rte_eth_bond_private.h b/drivers/net/bonding/rte_eth_bond_private.h
index 6c47a29..02f6de1 100644
--- a/drivers/net/bonding/rte_eth_bond_private.h
+++ b/drivers/net/bonding/rte_eth_bond_private.h
@@ -101,6 +101,8 @@ struct bond_slave_details {
uint8_t link_status_poll_enabled;
uint8_t link_status_wait_to_complete;
uint8_t last_link_status;
+ uint16_t nb_rx_queues;
+ uint16_t nb_tx_queues;
/**< Port Id of slave eth_dev */
struct ether_addr persisted_mac_addr;
@@ -240,7 +242,8 @@ slave_remove(struct bond_dev_private *internals,
void
slave_add(struct bond_dev_private *internals,
- struct rte_eth_dev *slave_eth_dev);
+ struct rte_eth_dev *slave_eth_dev,
+ const struct rte_eth_dev_info *slave_dev_info);
uint16_t
xmit_l2_hash(const struct rte_mbuf *buf, uint8_t slave_count);
--
2.1.4
More information about the dev
mailing list