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Commit d716a2a0 authored by Vipul Pandya's avatar Vipul Pandya Committed by Roland Dreier
Browse files

RDMA/cxgb4: Use vmalloc() for debugfs QP dump 



This allows dumping thousands of QPs.  Log active open failures of
interest.

Signed-off-by: default avatarVipul Pandya <vipul@chelsio.com>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent 422eea0a

drivers/infiniband/hw/cxgb4/cm.c

+18 −0
Original line number Diff line number Diff line
@@ -1413,6 +1413,24 @@ static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb) 
		return 0;

	}



	/*

	 * Log interesting failures.

	 */

	switch (status) {

	case CPL_ERR_CONN_RESET:

	case CPL_ERR_CONN_TIMEDOUT:

		break;

	default:

		printk(KERN_INFO MOD "Active open failure - "

		       "atid %u status %u errno %d %pI4:%u->%pI4:%u\n",

		       atid, status, status2errno(status),

		       &ep->com.local_addr.sin_addr.s_addr,

		       ntohs(ep->com.local_addr.sin_port),

		       &ep->com.remote_addr.sin_addr.s_addr,

		       ntohs(ep->com.remote_addr.sin_port));

		break;

	}



	connect_reply_upcall(ep, status2errno(status));

	state_set(&ep->com, DEAD);

drivers/infiniband/hw/cxgb4/device.c

+2 −2
Original line number Diff line number Diff line
@@ -121,7 +121,7 @@ static int qp_release(struct inode *inode, struct file *file) 
		printk(KERN_INFO "%s null qpd?\n", __func__);

		return 0;

	}

	kfree(qpd->buf);

	vfree(qpd->buf);

	kfree(qpd);

	return 0;

}
@@ -145,7 +145,7 @@ static int qp_open(struct inode *inode, struct file *file) 
	spin_unlock_irq(&qpd->devp->lock);



	qpd->bufsize = count * 128;

	qpd->buf = kmalloc(qpd->bufsize, GFP_KERNEL);

	qpd->buf = vmalloc(qpd->bufsize);

	if (!qpd->buf) {

		ret = -ENOMEM;

		goto err1;