Commit a442c2c3 authored Jan 09, 2020 by Jonathan Lemon Committed by Jakub Kicinski Jan 12, 2020

mlx4: Bump up MAX_MSIX from 64 to 128



On modern hardware with a large number of cpus and using XDP,
the current MSIX limit is insufficient.  Bump the limit in
order to allow more queues.

Signed-off-by: Jonathan Lemon <jonathan.lemon@gmail.com>
Reviewed-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

parent 5c9166f0

include/linux/mlx4/device.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -47,7 +47,7 @@
		#define DEFAULT_UAR_PAGE_SHIFT 12

		#define MAX_MSIX_P_PORT 17
		#define MAX_MSIX 64
		#define MAX_MSIX 128
		#define MIN_MSIX_P_PORT 5
		#define MLX4_IS_LEGACY_EQ_MODE(dev_cap) ((dev_cap).num_comp_vectors < \
		(dev_cap).num_ports * MIN_MSIX_P_PORT)

Admin message