summaryrefslogtreecommitdiff
path: root/drivers/net/gianfar.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-22 19:25:34 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-22 19:25:34 +0300
commitc62b3898636072de4bf9af36b6cd5a920ebfe896 (patch)
tree5fcccbf7cb2c690f43aa9ee20577fafe0b0bcdac /drivers/net/gianfar.c
parenteddecbb601c9ea3fab7e67d7892010fc9426d1e6 (diff)
parent736561a01f11114146b1b7f82d486fa9c95828ef (diff)
downloadlinux-c62b3898636072de4bf9af36b6cd5a920ebfe896.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits) IPVS: Use global mutex in ip_vs_app.c ipvs: fix a typo in __ip_vs_control_init() veth: Fix the byte counters net ipv6: Fix duplicate /proc/sys/net/ipv6/neigh directory entries. macvlan: Fix use after free of struct macvlan_port. net: fix incorrect spelling in drop monitor protocol can: c_can: Do basic c_can configuration _before_ enabling the interrupts net/appletalk: fix atalk_release use after free ipx: fix ipx_release() snmp: SNMP_UPD_PO_STATS_BH() always called from softirq l2tp: fix possible oops on l2tp_eth module unload xfrm: Fix initialize repl field of struct xfrm_state netfilter: ipt_CLUSTERIP: fix buffer overflow netfilter: xtables: fix reentrancy netfilter: ipset: fix checking the type revision at create command netfilter: ipset: fix address ranges at hash:*port* types niu: Rename NIU parent platform device name to fix conflict. r8169: fix a bug in rtl8169_init_phy() bonding: fix a typo in a comment ftmac100: use resource_size() ...
Diffstat (limited to 'drivers/net/gianfar.c')
-rw-r--r--drivers/net/gianfar.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index ccb231c4d933..2a0ad9a501bb 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -949,6 +949,11 @@ static void gfar_detect_errata(struct gfar_private *priv)
(pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0))
priv->errata |= GFAR_ERRATA_A002;
+ /* MPC8313 Rev < 2.0, MPC8548 rev 2.0 */
+ if ((pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) ||
+ (pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020))
+ priv->errata |= GFAR_ERRATA_12;
+
if (priv->errata)
dev_info(dev, "enabled errata workarounds, flags: 0x%x\n",
priv->errata);
@@ -2154,8 +2159,15 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Set up checksumming */
if (CHECKSUM_PARTIAL == skb->ip_summed) {
fcb = gfar_add_fcb(skb);
- lstatus |= BD_LFLAG(TXBD_TOE);
- gfar_tx_checksum(skb, fcb);
+ /* as specified by errata */
+ if (unlikely(gfar_has_errata(priv, GFAR_ERRATA_12)
+ && ((unsigned long)fcb % 0x20) > 0x18)) {
+ __skb_pull(skb, GMAC_FCB_LEN);
+ skb_checksum_help(skb);
+ } else {
+ lstatus |= BD_LFLAG(TXBD_TOE);
+ gfar_tx_checksum(skb, fcb);
+ }
}
if (vlan_tx_tag_present(skb)) {