Commit 4251ea5b authored by Maxime Chevallier's avatar Maxime Chevallier Committed by David S. Miller

net: mvpp2: use round-robin scheduling for TX queues on the same CPU

This commit allows each TXQ to be picked in a round-robin fashion by
the PPv2 transmit scheduling mechanism. This is opposed to the default
behaviour that prioritizes the highest numbered queues.
Suggested-by: default avatarYan Markman <ymarkman@marvell.com>
Signed-off-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0d283ab5
...@@ -331,6 +331,7 @@ ...@@ -331,6 +331,7 @@
#define MVPP2_TXP_SCHED_ENQ_MASK 0xff #define MVPP2_TXP_SCHED_ENQ_MASK 0xff
#define MVPP2_TXP_SCHED_DISQ_OFFSET 8 #define MVPP2_TXP_SCHED_DISQ_OFFSET 8
#define MVPP2_TXP_SCHED_CMD_1_REG 0x8010 #define MVPP2_TXP_SCHED_CMD_1_REG 0x8010
#define MVPP2_TXP_SCHED_FIXED_PRIO_REG 0x8014
#define MVPP2_TXP_SCHED_PERIOD_REG 0x8018 #define MVPP2_TXP_SCHED_PERIOD_REG 0x8018
#define MVPP2_TXP_SCHED_MTU_REG 0x801c #define MVPP2_TXP_SCHED_MTU_REG 0x801c
#define MVPP2_TXP_MTU_MAX 0x7FFFF #define MVPP2_TXP_MTU_MAX 0x7FFFF
......
...@@ -1448,6 +1448,9 @@ static void mvpp2_defaults_set(struct mvpp2_port *port) ...@@ -1448,6 +1448,9 @@ static void mvpp2_defaults_set(struct mvpp2_port *port)
tx_port_num); tx_port_num);
mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0); mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
/* Set TXQ scheduling to Round-Robin */
mvpp2_write(port->priv, MVPP2_TXP_SCHED_FIXED_PRIO_REG, 0);
/* Close bandwidth for all queues */ /* Close bandwidth for all queues */
for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) { for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
ptxq = mvpp2_txq_phys(port->id, queue); ptxq = mvpp2_txq_phys(port->id, queue);
......
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