From: Brice Goglin Date: Mon, 18 Dec 2006 10:51:22 +0000 (+0100) Subject: myri10ge: make msi configurable at runtime through sysfs X-Git-Tag: v2.6.20-rc3~56^2~20 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3621cec5b5847348248e749c647219f409550f2f;p=linux-2.6 myri10ge: make msi configurable at runtime through sysfs Now that IRQ are requested is called on open() and freed on close(), we can safely switch from/to MSI without unloading the module. We are guaranteed to correctly free IRQ even if the sysfs file got written in the meantime since the MSI initialization is stored in mgp->msi_enabled. Signed-off-by: Brice Goglin Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c index 53325ba0a6..1ce3c9e5c8 100644 --- a/drivers/net/myri10ge/myri10ge.c +++ b/drivers/net/myri10ge/myri10ge.c @@ -228,7 +228,7 @@ module_param(myri10ge_small_bytes, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(myri10ge_small_bytes, "Threshold of small packets\n"); static int myri10ge_msi = 1; /* enable msi by default */ -module_param(myri10ge_msi, int, S_IRUGO); +module_param(myri10ge_msi, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(myri10ge_msi, "Enable Message Signalled Interrupts\n"); static int myri10ge_intr_coal_delay = 25;