Messages in this thread Patch in this message |  | | From | MaJun <> | Subject | [PATCH] IRQ/Platform-MSI:Increase the maximum MSIs the MSI framework can support. | Date | Mon, 21 Dec 2015 11:18:25 +0800 |
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From: Ma Jun <majun258@huawei.com>
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, we need a new maximum value more than 256.
Signed-off-by: Ma Jun <majun258@huawei.com> --- 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..9c00d3f 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 22 #define MAX_DEV_MSIS (1 << (32 - DEV_ID_SHIFT)) /* -- 1.7.1
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