From: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Date: Fri, 30 Aug 2019 09:25:30 +0000 (+0200)
Subject: net: sgi: ioc3-eth: separate tx and rx ring handling
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9c328b05443a09bd62e4fcae284aeebbd13ca30e;p=linux.git

net: sgi: ioc3-eth: separate tx and rx ring handling

After allocation of descriptor memory is now done once in probe
handling of tx ring is completely done by ioc3_clean_tx_ring. So
we remove the remaining tx ring actions out of ioc3_alloc_rings
and ioc3_free_rings and rename it to ioc3_[alloc|free]_rx_bufs
to better describe what they are doing.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index fe77e4d7732f5..29b9e50980527 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -778,12 +778,10 @@ static inline void ioc3_clean_tx_ring(struct ioc3_private *ip)
 	ip->tx_ci = 0;
 }
 
-static void ioc3_free_rings(struct ioc3_private *ip)
+static void ioc3_free_rx_bufs(struct ioc3_private *ip)
 {
 	int rx_entry, n_entry;
 
-	ioc3_clean_tx_ring(ip);
-
 	n_entry = ip->rx_ci;
 	rx_entry = ip->rx_pi;
 
@@ -794,7 +792,7 @@ static void ioc3_free_rings(struct ioc3_private *ip)
 	}
 }
 
-static void ioc3_alloc_rings(struct net_device *dev)
+static void ioc3_alloc_rx_bufs(struct net_device *dev)
 {
 	struct ioc3_private *ip = netdev_priv(dev);
 	struct ioc3_erxbuf *rxb;
@@ -824,9 +822,6 @@ static void ioc3_alloc_rings(struct net_device *dev)
 	}
 	ip->rx_ci = 0;
 	ip->rx_pi = RX_BUFFS;
-
-	ip->tx_pi = 0;
-	ip->tx_ci = 0;
 }
 
 static void ioc3_init_rings(struct net_device *dev)
@@ -835,8 +830,8 @@ static void ioc3_init_rings(struct net_device *dev)
 	struct ioc3_ethregs *regs = ip->regs;
 	unsigned long ring;
 
-	ioc3_free_rings(ip);
-	ioc3_alloc_rings(dev);
+	ioc3_free_rx_bufs(ip);
+	ioc3_alloc_rx_bufs(dev);
 
 	ioc3_clean_tx_ring(ip);
 
@@ -962,7 +957,9 @@ static int ioc3_close(struct net_device *dev)
 	ioc3_stop(ip);
 	free_irq(dev->irq, dev);
 
-	ioc3_free_rings(ip);
+	ioc3_free_rx_bufs(ip);
+	ioc3_clean_tx_ring(ip);
+
 	return 0;
 }
 
@@ -1263,12 +1260,11 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 out_stop:
 	ioc3_stop(ip);
 	del_timer_sync(&ip->ioc3_timer);
-	ioc3_free_rings(ip);
+	ioc3_free_rx_bufs(ip);
 	if (ip->rxr)
 		free_page((unsigned long)ip->rxr);
 	if (ip->txr)
 		free_pages((unsigned long)ip->txr, 2);
-	kfree(ip->txr);
 out_res:
 	pci_release_regions(pdev);
 out_free: