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Date: Wed, 06 May 2009 13:25:01 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gospo@...hat.com,
Alexander Duyck <alexander.h.duyck@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 1/3] igbvf: cleanup flags and allow for rx
checksum to be disabled
From: Alexander Duyck <alexander.h.duyck@...el.com>
This patch cleans up a number of unused or unneeded feature flags. As a
result of these changes the user should now be able to enable or disable rx
checksumming via ethtool.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/igbvf/ethtool.c | 36 ++++++++++++++++++++----------------
drivers/net/igbvf/igbvf.h | 6 +-----
drivers/net/igbvf/netdev.c | 17 +++++------------
3 files changed, 26 insertions(+), 33 deletions(-)
diff --git a/drivers/net/igbvf/ethtool.c b/drivers/net/igbvf/ethtool.c
index 1dcaa69..ee17a09 100644
--- a/drivers/net/igbvf/ethtool.c
+++ b/drivers/net/igbvf/ethtool.c
@@ -133,6 +133,24 @@ static int igbvf_set_pauseparam(struct net_device *netdev,
return -EOPNOTSUPP;
}
+static u32 igbvf_get_rx_csum(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ return !(adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED);
+}
+
+static int igbvf_set_rx_csum(struct net_device *netdev, u32 data)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ if (data)
+ adapter->flags &= ~IGBVF_FLAG_RX_CSUM_DISABLED;
+ else
+ adapter->flags |= IGBVF_FLAG_RX_CSUM_DISABLED;
+
+ return 0;
+}
+
static u32 igbvf_get_tx_csum(struct net_device *netdev)
{
return ((netdev->features & NETIF_F_IP_CSUM) != 0);
@@ -150,8 +168,6 @@ static int igbvf_set_tx_csum(struct net_device *netdev, u32 data)
static int igbvf_set_tso(struct net_device *netdev, u32 data)
{
struct igbvf_adapter *adapter = netdev_priv(netdev);
- int i;
- struct net_device *v_netdev;
if (data) {
netdev->features |= NETIF_F_TSO;
@@ -159,24 +175,10 @@ static int igbvf_set_tso(struct net_device *netdev, u32 data)
} else {
netdev->features &= ~NETIF_F_TSO;
netdev->features &= ~NETIF_F_TSO6;
- /* disable TSO on all VLANs if they're present */
- if (!adapter->vlgrp)
- goto tso_out;
- for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
- v_netdev = vlan_group_get_device(adapter->vlgrp, i);
- if (!v_netdev)
- continue;
-
- v_netdev->features &= ~NETIF_F_TSO;
- v_netdev->features &= ~NETIF_F_TSO6;
- vlan_group_set_device(adapter->vlgrp, i, v_netdev);
- }
}
-tso_out:
dev_info(&adapter->pdev->dev, "TSO is %s\n",
data ? "Enabled" : "Disabled");
- adapter->flags |= FLAG_TSO_FORCE;
return 0;
}
@@ -517,6 +519,8 @@ static const struct ethtool_ops igbvf_ethtool_ops = {
.set_ringparam = igbvf_set_ringparam,
.get_pauseparam = igbvf_get_pauseparam,
.set_pauseparam = igbvf_set_pauseparam,
+ .get_rx_csum = igbvf_get_rx_csum,
+ .set_rx_csum = igbvf_set_rx_csum,
.get_tx_csum = igbvf_get_tx_csum,
.set_tx_csum = igbvf_set_tx_csum,
.get_sg = ethtool_op_get_sg,
diff --git a/drivers/net/igbvf/igbvf.h b/drivers/net/igbvf/igbvf.h
index 4bff35e..2ad6cd7 100644
--- a/drivers/net/igbvf/igbvf.h
+++ b/drivers/net/igbvf/igbvf.h
@@ -286,11 +286,7 @@ struct igbvf_info {
};
/* hardware capability, feature, and workaround flags */
-#define FLAG_HAS_HW_VLAN_FILTER (1 << 0)
-#define FLAG_HAS_JUMBO_FRAMES (1 << 1)
-#define FLAG_MSI_ENABLED (1 << 2)
-#define FLAG_RX_CSUM_ENABLED (1 << 3)
-#define FLAG_TSO_FORCE (1 << 4)
+#define IGBVF_FLAG_RX_CSUM_DISABLED (1 << 0)
#define IGBVF_RX_DESC_ADV(R, i) \
(&((((R).desc))[i].rx_desc))
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index b774666..44a8eef 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -58,8 +58,7 @@ static void igbvf_reset_interrupt_capability(struct igbvf_adapter *);
static struct igbvf_info igbvf_vf_info = {
.mac = e1000_vfadapt,
- .flags = FLAG_HAS_JUMBO_FRAMES
- | FLAG_RX_CSUM_ENABLED,
+ .flags = 0,
.pba = 10,
.init_ops = e1000_init_function_pointers_vf,
};
@@ -107,8 +106,10 @@ static inline void igbvf_rx_checksum_adv(struct igbvf_adapter *adapter,
skb->ip_summed = CHECKSUM_NONE;
/* Ignore Checksum bit is set or checksum is disabled through ethtool */
- if ((status_err & E1000_RXD_STAT_IXSM))
+ if ((status_err & E1000_RXD_STAT_IXSM) ||
+ (adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED))
return;
+
/* TCP/UDP checksum error bit is set */
if (status_err &
(E1000_RXDEXT_STATERR_TCPE | E1000_RXDEXT_STATERR_IPE)) {
@@ -116,6 +117,7 @@ static inline void igbvf_rx_checksum_adv(struct igbvf_adapter *adapter,
adapter->hw_csum_err++;
return;
}
+
/* It must be a TCP or UDP packet with a valid checksum */
if (status_err & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS))
skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -2351,15 +2353,6 @@ static int igbvf_change_mtu(struct net_device *netdev, int new_mtu)
return -EINVAL;
}
- /* Jumbo frame size limits */
- if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
- if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
- dev_err(&adapter->pdev->dev,
- "Jumbo Frames not supported.\n");
- return -EINVAL;
- }
- }
-
#define MAX_STD_JUMBO_FRAME_SIZE 9234
if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n");
--
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