[PATCH net-next] net: mana: Set default number of queues to 16
From: Long Li <longli@microsoft.com>
Date: 2026-03-20 23:30:41
Also in:
linux-hyperv, linux-rdma, lkml
Subsystem:
hyper-v/azure core and drivers, networking drivers, networking [general], the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Set the default number of queues per vPort to MANA_DEF_NUM_QUEUES (16), as 16 queues can achieve optimal throughput for typical workloads. Users can increase the number of queues up to max_queues via ethtool if needed. Signed-off-by: Long Li <longli@microsoft.com> --- drivers/net/ethernet/microsoft/mana/mana_en.c | 2 +- include/net/mana/mana.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 49c65cc1697c..7cae8a7b9f31 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c@@ -3357,7 +3357,7 @@ static int mana_probe_port(struct mana_context *ac, int port_idx, apc->ac = ac; apc->ndev = ndev; apc->max_queues = gc->max_num_queues; - apc->num_queues = gc->max_num_queues; + apc->num_queues = min(gc->max_num_queues, MANA_DEF_NUM_QUEUES); apc->tx_queue_size = DEF_TX_BUFFERS_PER_QUEUE; apc->rx_queue_size = DEF_RX_BUFFERS_PER_QUEUE; apc->port_handle = INVALID_MANA_HANDLE;
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
index 3336688fed5e..96d21cbbdee2 100644
--- a/include/net/mana/mana.h
+++ b/include/net/mana/mana.h@@ -1007,6 +1007,7 @@ struct mana_deregister_filter_resp { #define STATISTICS_FLAGS_TX_ERRORS_GDMA_ERROR 0x0000000004000000 #define MANA_MAX_NUM_QUEUES 64 +#define MANA_DEF_NUM_QUEUES 16 #define MANA_SHORT_VPORT_OFFSET_MAX ((1U << 8) - 1)
--
2.43.0