Date: Wed, 17 Aug 2016 11:35:42 +0200 From: Hans Petter Selasky <hps@selasky.org> To: KrishnamRaju ErapaRaju <Krishna2@chelsio.com>, Alex Bowden <alex.bowden@outlook.com>, "freebsd-infiniband@freebsd.org" <freebsd-infiniband@freebsd.org> Subject: Re: Set non blocking on /dev/rdma_cm Message-ID: <ad67ccbe-4552-7fbd-b804-252d2ee385eb@selasky.org> In-Reply-To: <516f3566-33f0-c1d6-ab2d-997290a16ae5@selasky.org> References: <DM2PR05MB75118A2E53E97548A432608F7130@DM2PR05MB751.namprd05.prod.outlook.com> <BN4PR12MB081885693F06A5B5666629D494140@BN4PR12MB0818.namprd12.prod.outlook.com> <516f3566-33f0-c1d6-ab2d-997290a16ae5@selasky.org>
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On 08/17/16 11:30, Hans Petter Selasky wrote:
> On 08/17/16 09:03, KrishnamRaju ErapaRaju wrote:
>> Hi Alex,
>>
>>
>> I too faced the same issue earlier. But could not look into it/report
>> it due to other priorities.
>>
>> Hans, if you have root caused it please point me to the patch, few of
>> my apps uses O_NONBLOCK.
>>
>
> Hi Alex,
>
> Can you try the attached patch?
>
> cd /usr/src
> cat ibcore_fionbio.diff | patch -p1
>
> --HPS
>
Hi,
Looks like we also need to support FIOASYNC. Updated patch attached.
--HPS
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diff --git a/sys/ofed/drivers/infiniband/core/ucma.c b/sys/ofed/drivers/infiniband/core/ucma.c
index 56f8786..eb10aa8 100644
--- a/sys/ofed/drivers/infiniband/core/ucma.c
+++ b/sys/ofed/drivers/infiniband/core/ucma.c
@@ -49,6 +49,8 @@
#include <rdma/ib_addr.h>
#include <rdma/ib.h>
+#include <sys/filio.h>
+
/* RDMA Userspace Connection Manager Access */
static unsigned int max_backlog = 1024;
@@ -1825,11 +1827,25 @@ static int ucma_close(struct inode *inode, struct file *filp)
return 0;
}
+static long
+ucma_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+
+ switch (cmd) {
+ case FIONBIO:
+ case FIOASYNC:
+ return (0);
+ default:
+ return (-ENOTTY);
+ }
+}
+
static const struct file_operations ucma_fops = {
.owner = THIS_MODULE,
.open = ucma_open,
.release = ucma_close,
.write = ucma_write,
+ .unlocked_ioctl = ucma_ioctl,
.poll = ucma_poll,
.llseek = no_llseek,
};
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