From 3a2c892daaf54b31a70785c2821771e8094188ed Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Mon, 11 Jun 2007 13:35:23 -0500
Subject: [PATCH] spidernet: checksum and ethtool
It doesn't look like spidernet hardware can really checksum all protocols,
the code looks like it does IPV4 only. If so, it should use NETIF_F_IP_CSUM
instead of NETIF_F_HW_CSUM.
The driver doesn't need it's own get/set for ethtool tx csum, and it
should use the standard ethtool_op_get_link.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---
drivers/net/spider_net.c | 4 ++--
drivers/net/spider_net_ethtool.c | 21 +++------------------
2 files changed, 5 insertions(+), 20 deletions(-)
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 0e79bacd78702..7a4aa6a9f9491 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -718,7 +718,7 @@ spider_net_prepare_tx_descr(struct spider_net_card *card,
SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_NOCS;
spin_unlock_irqrestore(&chain->lock, flags);
- if (skb->protocol == htons(ETH_P_IP) && skb->ip_summed == CHECKSUM_PARTIAL)
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
switch (ip_hdr(skb)->protocol) {
case IPPROTO_TCP:
hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_TCP;
@@ -2260,7 +2260,7 @@ spider_net_setup_netdev(struct spider_net_card *card)
spider_net_setup_netdev_ops(netdev);
- netdev->features = NETIF_F_HW_CSUM | NETIF_F_LLTX;
+ netdev->features = NETIF_F_IP_CSUM | NETIF_F_LLTX;
/* some time: NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
* NETIF_F_HW_VLAN_FILTER */
diff --git a/drivers/net/spider_net_ethtool.c b/drivers/net/spider_net_ethtool.c
index 6bcf03fc89be7..d940474e024a1 100644
--- a/drivers/net/spider_net_ethtool.c
+++ b/drivers/net/spider_net_ethtool.c
@@ -134,22 +134,6 @@ spider_net_ethtool_set_rx_csum(struct net_device *netdev, u32 n)
return 0;
}
-static uint32_t
-spider_net_ethtool_get_tx_csum(struct net_device *netdev)
-{
- return (netdev->features & NETIF_F_HW_CSUM) != 0;
-}
-
-static int
-spider_net_ethtool_set_tx_csum(struct net_device *netdev, uint32_t data)
-{
- if (data)
- netdev->features |= NETIF_F_HW_CSUM;
- else
- netdev->features &= ~NETIF_F_HW_CSUM;
-
- return 0;
-}
static void
spider_net_ethtool_get_ringparam(struct net_device *netdev,
@@ -200,11 +184,12 @@ const struct ethtool_ops spider_net_ethtool_ops = {
.get_wol = spider_net_ethtool_get_wol,
.get_msglevel = spider_net_ethtool_get_msglevel,
.set_msglevel = spider_net_ethtool_set_msglevel,
+ .get_link = ethtool_op_get_link,
.nway_reset = spider_net_ethtool_nway_reset,
.get_rx_csum = spider_net_ethtool_get_rx_csum,
.set_rx_csum = spider_net_ethtool_set_rx_csum,
- .get_tx_csum = spider_net_ethtool_get_tx_csum,
- .set_tx_csum = spider_net_ethtool_set_tx_csum,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .set_tx_csum = ethtool_op_set_tx_csum,
.get_ringparam = spider_net_ethtool_get_ringparam,
.get_strings = spider_net_get_strings,
.get_stats_count = spider_net_get_stats_count,
--
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