Commit 81d275c6 authored by Tim Sell's avatar Tim Sell Committed by Greg Kroah-Hartman
Browse files

staging: unisys: visornic - check visorchannel_signalinsert/remove failures 



Logic to check for failures of visorchannel_signalinsert() and
visorchannel_signalremove() were added, and a new sent_post_failed counter
tracks the number of times we failed to post a rcv buffer to the IO
partition.

Signed-off-by: default avatarTim Sell <Timothy.Sell@unisys.com>
Signed-off-by: default avatarBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4d79002e

drivers/staging/unisys/visornic/visornic_main.c

+14 −7
Original line number Diff line number Diff line
@@ -102,6 +102,7 @@ struct chanstat { 
	unsigned long sent_enbdis;

	unsigned long sent_promisc;

	unsigned long sent_post;

	unsigned long sent_post_failed;

	unsigned long sent_xmit;

	unsigned long reject_count;

	unsigned long extra_rcvbufs_sent;
@@ -479,11 +480,14 @@ post_skb(struct uiscmdrsp *cmdrsp, 
	if ((cmdrsp->net.rcvpost.frag.pi_off + skb->len) <= PI_PAGE_SIZE) {

		cmdrsp->net.type = NET_RCV_POST;

		cmdrsp->cmdtype = CMD_NET_TYPE;

		visorchannel_signalinsert(devdata->dev->visorchannel,

		if (visorchannel_signalinsert(devdata->dev->visorchannel,

					  IOCHAN_TO_IOPART,

					  cmdrsp);

					  cmdrsp)) {

			atomic_inc(&devdata->num_rcvbuf_in_iovm);

			devdata->chstat.sent_post++;

		} else {

			devdata->chstat.sent_post_failed++;

		}

	}

}
@@ -505,9 +509,9 @@ send_enbdis(struct net_device *netdev, int state, 
	devdata->cmdrsp_rcv->net.enbdis.context = netdev;

	devdata->cmdrsp_rcv->net.type = NET_RCV_ENBDIS;

	devdata->cmdrsp_rcv->cmdtype = CMD_NET_TYPE;

	visorchannel_signalinsert(devdata->dev->visorchannel,

	if (visorchannel_signalinsert(devdata->dev->visorchannel,

				  IOCHAN_TO_IOPART,

				  devdata->cmdrsp_rcv);

				  devdata->cmdrsp_rcv))

		devdata->chstat.sent_enbdis++;

}
@@ -1501,6 +1505,9 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf, 
		str_pos += scnprintf(vbuf + str_pos, len - str_pos,

				     " chstat.sent_post = %lu\n",

				     devdata->chstat.sent_post);

		str_pos += scnprintf(vbuf + str_pos, len - str_pos,

				     " chstat.sent_post_failed = %lu\n",

				     devdata->chstat.sent_post_failed);

		str_pos += scnprintf(vbuf + str_pos, len - str_pos,

				     " chstat.sent_xmit = %lu\n",

				     devdata->chstat.sent_xmit);

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