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cxgbe(4): Assume that CSUM_TSO in the transmit path implies CSUM_IP and

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CSUM_TCP too.  They are all set explicitly by the kernel usually.

While here, fix an unrelated bug where hardware L4 checksum calculation
was accidentally disabled for some IPv6 packets.

Reported by:	alfred@
MFC after:	3 days
This commit is contained in:
Navdeep Parhar 2013-02-20 23:15:40 +00:00
parent 45b56a6ba2
commit b85313804d
1 changed files with 8 additions and 6 deletions
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14
sys/dev/cxgbe/t4_sge.c
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@ -2950,13 +2950,13 @@ write_txpkt_wr(struct port_info *pi, struct sge_txq *txq, struct mbuf *m,
/* Checksum offload */
ctrl1 = 0;
if (!(m->m_pkthdr.csum_flags & CSUM_IP))
if (!(m->m_pkthdr.csum_flags & (CSUM_IP | CSUM_TSO)))
ctrl1 |= F_TXPKT_IPCSUM_DIS;
if (!(m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP | CSUM_UDP_IPV6 |
CSUM_TCP_IPV6)))
CSUM_TCP_IPV6 | CSUM_TSO)))
ctrl1 |= F_TXPKT_L4CSUM_DIS;
if (m->m_pkthdr.csum_flags & (CSUM_IP | CSUM_TCP | CSUM_UDP |
CSUM_UDP_IPV6 | CSUM_TCP_IPV6))
CSUM_UDP_IPV6 | CSUM_TCP_IPV6 | CSUM_TSO))
txq->txcsum++; /* some hardware assistance provided */
/* VLAN tag insertion */
@ -3152,11 +3152,13 @@ write_ulp_cpl_sgl(struct port_info *pi, struct sge_txq *txq,
/* Checksum offload */
ctrl = 0;
if (!(m->m_pkthdr.csum_flags & CSUM_IP))
if (!(m->m_pkthdr.csum_flags & (CSUM_IP | CSUM_TSO)))
ctrl |= F_TXPKT_IPCSUM_DIS;
if (!(m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)))
if (!(m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP | CSUM_UDP_IPV6 |
CSUM_TCP_IPV6 | CSUM_TSO)))
ctrl |= F_TXPKT_L4CSUM_DIS;
if (m->m_pkthdr.csum_flags & (CSUM_IP | CSUM_TCP | CSUM_UDP))
if (m->m_pkthdr.csum_flags & (CSUM_IP | CSUM_TCP | CSUM_UDP |
CSUM_UDP_IPV6 | CSUM_TCP_IPV6 | CSUM_TSO))
txq->txcsum++; /* some hardware assistance provided */
/* VLAN tag insertion */