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| author | Ron Mercer <ron.mercer@qlogic.com> | 2009-03-11 11:55:40 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-13 11:27:23 -0700 |
| commit | c3c6496dc3d94d87bb0da86cf0bf48764577bf77 (patch) | |
| tree | 590533161de2317b27c1af6ebee34b22db08009d /drivers/net/qlge | |
| parent | 9fae6c3f648e38f023b99b5f5a5280907b2e796e (diff) | |
| download | linux-c3c6496dc3d94d87bb0da86cf0bf48764577bf77.tar.gz linux-c3c6496dc3d94d87bb0da86cf0bf48764577bf77.tar.bz2 linux-c3c6496dc3d94d87bb0da86cf0bf48764577bf77.zip | |
qlge: bugfix: Increase filter on inbound csum.
Chip does not do UDP checksum when fragmentation occurs.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qlge')
| -rw-r--r-- | drivers/net/qlge/qlge.h | 1 | ||||
| -rw-r--r-- | drivers/net/qlge/qlge_main.c | 38 |
2 files changed, 27 insertions, 12 deletions
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index e6fdce9206cc..aff9c5fec738 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -927,6 +927,7 @@ struct ib_mac_iocb_rsp { u8 flags1; #define IB_MAC_IOCB_RSP_OI 0x01 /* Overide intr delay */ #define IB_MAC_IOCB_RSP_I 0x02 /* Disble Intr Generation */ +#define IB_MAC_CSUM_ERR_MASK 0x1c /* A mask to use for csum errs */ #define IB_MAC_IOCB_RSP_TE 0x04 /* Checksum error */ #define IB_MAC_IOCB_RSP_NU 0x08 /* No checksum rcvd */ #define IB_MAC_IOCB_RSP_IE 0x10 /* IPv4 checksum error */ diff --git a/drivers/net/qlge/qlge_main.c b/drivers/net/qlge/qlge_main.c index 8ea72dc60f79..87787b1ecab2 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -1436,18 +1436,32 @@ static void ql_process_mac_rx_intr(struct ql_adapter *qdev, if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_P) { QPRINTK(qdev, RX_STATUS, DEBUG, "Promiscuous Packet.\n"); } - if (ib_mac_rsp->flags1 & (IB_MAC_IOCB_RSP_IE | IB_MAC_IOCB_RSP_TE)) { - QPRINTK(qdev, RX_STATUS, ERR, - "Bad checksum for this %s packet.\n", - ((ib_mac_rsp-> - flags2 & IB_MAC_IOCB_RSP_T) ? "TCP" : "UDP")); - skb->ip_summed = CHECKSUM_NONE; - } else if (qdev->rx_csum && - ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T) || - ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_U) && - !(ib_mac_rsp->flags1 & IB_MAC_IOCB_RSP_NU)))) { - QPRINTK(qdev, RX_STATUS, DEBUG, "RX checksum done!\n"); - skb->ip_summed = CHECKSUM_UNNECESSARY; + + skb->protocol = eth_type_trans(skb, ndev); + skb->ip_summed = CHECKSUM_NONE; + + /* If rx checksum is on, and there are no + * csum or frame errors. + */ + if (qdev->rx_csum && + !(ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_ERR_MASK) && + !(ib_mac_rsp->flags1 & IB_MAC_CSUM_ERR_MASK)) { + /* TCP frame. */ + if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_T) { + QPRINTK(qdev, RX_STATUS, DEBUG, + "TCP checksum done!\n"); + skb->ip_summed = CHECKSUM_UNNECESSARY; + } else if ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_U) && + (ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_V4)) { + /* Unfragmented ipv4 UDP frame. */ + struct iphdr *iph = (struct iphdr *) skb->data; + if (!(iph->frag_off & + cpu_to_be16(IP_MF|IP_OFFSET))) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + QPRINTK(qdev, RX_STATUS, DEBUG, + "TCP checksum done!\n"); + } + } } qdev->stats.rx_packets++; qdev->stats.rx_bytes += skb->len; |