From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Wed, 23 Aug 2017 17:56:33 +0000 (-0700)
Subject: skd: Change default interrupt mode to MSI-X
X-Git-Tag: v4.14-rc1~81^2~55
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=744353b6951c3b7adbb9e4a1b2a529eabde61970;p=linux.git

skd: Change default interrupt mode to MSI-X

Since MSI support on some motherboards is unreliable, change the
default interrupt mode from MSI to MSI-X. This patch avoids that
the following message appears sporadially in the kernel logs of
my test setup:

do_IRQ: 3.193 No irq handler for vector

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index ff288f1a5dec..577618c57975 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -310,7 +310,7 @@ static inline void skd_reg_write64(struct skd_device *skdev, u64 val,
 }
 
 
-#define SKD_IRQ_DEFAULT SKD_IRQ_MSI
+#define SKD_IRQ_DEFAULT SKD_IRQ_MSIX
 static int skd_isr_type = SKD_IRQ_DEFAULT;
 
 module_param(skd_isr_type, int, 0444);