diff options
| author | Ron Mercer <ron.mercer@qlogic.com> | 2009-03-09 10:59:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-10 04:43:51 -0700 |
| commit | d555f5921f2b0d9f65b547dd0be67c870ff5a56f (patch) | |
| tree | 563ca25955fdffa702871ef68eaa090b8b2900c4 /drivers/net/qlge | |
| parent | a75ee7f1ccace560642e5dc6b1c0e22c73da5a8c (diff) | |
| download | linux-d555f5921f2b0d9f65b547dd0be67c870ff5a56f.tar.gz linux-d555f5921f2b0d9f65b547dd0be67c870ff5a56f.tar.bz2 linux-d555f5921f2b0d9f65b547dd0be67c870ff5a56f.zip | |
qlge: Increase filtering for inbound csum settings.
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 | 41 |
2 files changed, 29 insertions, 13 deletions
diff --git a/drivers/net/qlge/qlge.h b/drivers/net/qlge/qlge.h index 9918106f2a53..fcb159e4df54 100644 --- a/drivers/net/qlge/qlge.h +++ b/drivers/net/qlge/qlge.h @@ -977,6 +977,7 @@ 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 bc04aebc9289..498d4bf52116 100644 --- a/drivers/net/qlge/qlge_main.c +++ b/drivers/net/qlge/qlge_main.c @@ -1531,22 +1531,37 @@ 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; - skb->protocol = eth_type_trans(skb, ndev); skb_record_rx_queue(skb, rx_ring - &qdev->rx_ring[0]); if (qdev->vlgrp && (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V)) { QPRINTK(qdev, RX_STATUS, DEBUG, |