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authorZhang Wei <wei.zhang@freescale.com>2008-04-18 13:33:42 -0700
committerPaul Mackerras <paulus@samba.org>2008-04-29 19:40:28 +1000
commite042323607f5c14844b1c59aebbca8d1251c7d89 (patch)
tree10c9eac3d5146f3611af9220740e4ec27bf2ade0 /drivers/net/rionet.c
parentcc2bb6968a2c842149d285d77cb35200d2d37b15 (diff)
downloadlinux-e042323607f5c14844b1c59aebbca8d1251c7d89.tar.gz
[RAPIDIO] Auto-probe the RapidIO system size
The RapidIO system size will auto probe in RIO setup.  The route table
and rionet_active in rionet.c are changed to be allocated dynamically
according to the size of the system.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/net/rionet.c')
-rw-r--r--drivers/net/rionet.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c
index e7fd08adbbac..2b8fd68bc516 100644
--- a/drivers/net/rionet.c
+++ b/drivers/net/rionet.c
@@ -77,7 +77,7 @@ static int rionet_capable = 1;
  * could be made into a hash table to save memory depending
  * on system trade-offs.
  */
-static struct rio_dev *rionet_active[RIO_MAX_ROUTE_ENTRIES];
+static struct rio_dev **rionet_active;
 
 #define is_rionet_capable(pef, src_ops, dst_ops)		\
 			((pef & RIO_PEF_INB_MBOX) &&		\
@@ -195,7 +195,8 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	}
 
 	if (eth->h_dest[0] & 0x01) {
-		for (i = 0; i < RIO_MAX_ROUTE_ENTRIES; i++)
+		for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rnet->mport->sys_size);
+				i++)
 			if (rionet_active[i])
 				rionet_queue_tx_msg(skb, ndev,
 						    rionet_active[i]);
@@ -385,6 +386,8 @@ static void rionet_remove(struct rio_dev *rdev)
 	struct net_device *ndev = NULL;
 	struct rionet_peer *peer, *tmp;
 
+	free_pages((unsigned long)rionet_active, rdev->net->hport->sys_size ?
+					__ilog2(sizeof(void *)) + 4 : 0);
 	unregister_netdev(ndev);
 	kfree(ndev);
 
@@ -443,6 +446,15 @@ static int rionet_setup_netdev(struct rio_mport *mport)
 		goto out;
 	}
 
+	rionet_active = (struct rio_dev **)__get_free_pages(GFP_KERNEL,
+			mport->sys_size ? __ilog2(sizeof(void *)) + 4 : 0);
+	if (!rionet_active) {
+		rc = -ENOMEM;
+		goto out;
+	}
+	memset((void *)rionet_active, 0, sizeof(void *) *
+				RIO_MAX_ROUTE_ENTRIES(mport->sys_size));
+
 	/* Set up private area */
 	rnet = (struct rionet_private *)ndev->priv;
 	rnet->mport = mport;