Created
August 31, 2018 06:54
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Patch to create a module parameter to control the maximum MTU size on PS3 Linux
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diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c | |
index 4532bc7..8e70981 100644 | |
--- a/drivers/net/ps3_gelic_net.c | |
+++ b/drivers/net/ps3_gelic_net.c | |
@@ -54,6 +54,9 @@ MODULE_AUTHOR("SCE Inc."); | |
MODULE_DESCRIPTION("Gelic Network driver"); | |
MODULE_LICENSE("GPL"); | |
+static int max_mtu = VLAN_ETH_FRAME_LEN; | |
+module_param(max_mtu, int, S_IRUGO); | |
+MODULE_PARM_DESC(max_mtu, "Maximum MTU"); | |
static int disable_eurus_ctrl_iface = 0; | |
module_param(disable_eurus_ctrl_iface, bool, S_IRUGO); | |
MODULE_PARM_DESC(disable_eurus_ctrl_iface, "Disable EURUS control interface"); | |
@@ -1127,7 +1130,7 @@ int gelic_net_change_mtu(struct net_device *netdev, int new_mtu) | |
/* no need to re-alloc skbs or so -- the max mtu is about 2.3k | |
* and mtu is outbound only anyway */ | |
if ((new_mtu < GELIC_NET_MIN_MTU) || | |
- (new_mtu > GELIC_NET_MAX_MTU)) { | |
+ (new_mtu > max_mtu)) { | |
return -EINVAL; | |
} | |
netdev->mtu = new_mtu; | |
diff --git a/drivers/net/ps3_gelic_net.h b/drivers/net/ps3_gelic_net.h | |
index fadadf9..804bed8 100644 | |
--- a/drivers/net/ps3_gelic_net.h | |
+++ b/drivers/net/ps3_gelic_net.h | |
@@ -32,7 +32,8 @@ | |
#define GELIC_NET_RX_DESCRIPTORS 128 /* num of descriptors */ | |
#define GELIC_NET_TX_DESCRIPTORS 128 /* num of descriptors */ | |
-#define GELIC_NET_MAX_MTU VLAN_ETH_FRAME_LEN | |
+#define GELIC_NET_MAX_MTU 10000 | |
#define GELIC_NET_MIN_MTU VLAN_ETH_ZLEN | |
#define GELIC_NET_RXBUF_ALIGN 128 | |
#define GELIC_CARD_RX_CSUM_DEFAULT 1 /* hw chksum */ |
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