* [PATCH] emac: fix jumbo frame support
@ 2005-02-09 5:34 Matt Porter
0 siblings, 0 replies; only message in thread
From: Matt Porter @ 2005-02-09 5:34 UTC (permalink / raw)
To: jgarzik; +Cc: netdev, linuxppc-embedded
Fixes a bug in RX buffer allocation so that jumbo size skbs are
allocated when the MTU size is changed. Also removes the deprecated
restore_flags() call. Please apply.
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
===== drivers/net/ibm_emac/ibm_emac_core.c 1.7 vs edited =====
--- 1.7/drivers/net/ibm_emac/ibm_emac_core.c 2004-12-07 10:06:23 -07:00
+++ edited/drivers/net/ibm_emac/ibm_emac_core.c 2005-02-08 22:25:39 -07:00
@@ -912,7 +912,6 @@
PKT_DEBUG(("emac_start_xmit() stopping queue\n"));
netif_stop_queue(dev);
spin_unlock_irqrestore(&fep->lock, flags);
- restore_flags(flags);
return -EBUSY;
}
@@ -1281,7 +1280,7 @@
/* Format the receive descriptor ring. */
ep->rx_slot = 0;
/* Default is MTU=1500 + Ethernet overhead */
- ep->rx_buffer_size = ENET_DEF_BUF_SIZE;
+ ep->rx_buffer_size = dev->mtu + ENET_HEADER_SIZE + ENET_FCS_SIZE;
emac_rx_fill(dev, 0);
if (ep->rx_slot != 0) {
printk(KERN_ERR
===== drivers/net/ibm_emac/ibm_emac_core.h 1.2 vs edited =====
--- 1.2/drivers/net/ibm_emac/ibm_emac_core.h 2004-08-05 07:26:55 -07:00
+++ edited/drivers/net/ibm_emac/ibm_emac_core.h 2005-02-08 22:24:52 -07:00
@@ -77,8 +77,6 @@
#define ENET_HEADER_SIZE 14
#define ENET_FCS_SIZE 4
-#define ENET_DEF_MTU_SIZE 1500
-#define ENET_DEF_BUF_SIZE (ENET_DEF_MTU_SIZE + ENET_HEADER_SIZE + ENET_FCS_SIZE)
#define EMAC_MIN_FRAME 64
#define EMAC_MAX_FRAME 9018
#define EMAC_MIN_MTU (EMAC_MIN_FRAME - ENET_HEADER_SIZE - ENET_FCS_SIZE)
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2005-02-09 5:34 [PATCH] emac: fix jumbo frame support Matt Porter
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