[PATCH v2] Irq/Platform-MSI:Increase the maximum MSIs the MSI framework can support.
From: MaJun <hidden>
Date: 2015-12-22 02:56:49
Also in:
lkml
Subsystem:
driver core, kobjects, debugfs and sysfs, the rest · Maintainers:
Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Linus Torvalds
From: Ma Jun <redacted> The current MSI framework can only support 256 platform MSIs. But on Hisilicon platform, some network related devices has about 500 wired interrupts. To support these devices and align with MSI-X, this value is changed to 2048. Signed-off-by: Ma Jun <redacted> --- drivers/base/platform-msi.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c
index a203896..47c4338 100644
--- a/drivers/base/platform-msi.c
+++ b/drivers/base/platform-msi.c@@ -24,7 +24,7 @@ #include <linux/msi.h> #include <linux/slab.h> -#define DEV_ID_SHIFT 24 +#define DEV_ID_SHIFT 21 #define MAX_DEV_MSIS (1 << (32 - DEV_ID_SHIFT)) /*
--
1.7.1