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[net-next,3/9] cxgb4: fix TSO descriptors

Message ID 1280791164-14181-4-git-send-email-dm@chelsio.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Dimitris Michailidis Aug. 2, 2010, 11:19 p.m. UTC
Commit 1704d74894912b8ecc3e95cecd7bde336a0b1bf2 ("cxgb4vf: small changes
to message processing structures/macros") was incomplete and causes cxgb4
to write bad TSO descriptors.  Fix that up by reverting the offending part
of that commit and adjusting field accesses now that they are one level
deeper.

Signed-off-by: Dimitris Michailidis <dm@chelsio.com>
---
 drivers/net/cxgb4/sge.c |   22 +++++++++++-----------
 1 files changed, 11 insertions(+), 11 deletions(-)
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Patch

diff --git a/drivers/net/cxgb4/sge.c b/drivers/net/cxgb4/sge.c
index 304302a..5cacfc7 100644
--- a/drivers/net/cxgb4/sge.c
+++ b/drivers/net/cxgb4/sge.c
@@ -931,23 +931,23 @@  out_free:	dev_kfree_skb(skb);
 
 	ssi = skb_shinfo(skb);
 	if (ssi->gso_size) {
-		struct cpl_tx_pkt_lso_core *lso = (void *)(wr + 1);
+		struct cpl_tx_pkt_lso *lso = (void *)wr;
 		bool v6 = (ssi->gso_type & SKB_GSO_TCPV6) != 0;
 		int l3hdr_len = skb_network_header_len(skb);
 		int eth_xtra_len = skb_network_offset(skb) - ETH_HLEN;
 
 		wr->op_immdlen = htonl(FW_WR_OP(FW_ETH_TX_PKT_WR) |
 				       FW_WR_IMMDLEN(sizeof(*lso)));
-		lso->lso_ctrl = htonl(LSO_OPCODE(CPL_TX_PKT_LSO) |
-				      LSO_FIRST_SLICE | LSO_LAST_SLICE |
-				      LSO_IPV6(v6) |
-				      LSO_ETHHDR_LEN(eth_xtra_len / 4) |
-				      LSO_IPHDR_LEN(l3hdr_len / 4) |
-				      LSO_TCPHDR_LEN(tcp_hdr(skb)->doff));
-		lso->ipid_ofst = htons(0);
-		lso->mss = htons(ssi->gso_size);
-		lso->seqno_offset = htonl(0);
-		lso->len = htonl(skb->len);
+		lso->c.lso_ctrl = htonl(LSO_OPCODE(CPL_TX_PKT_LSO) |
+					LSO_FIRST_SLICE | LSO_LAST_SLICE |
+					LSO_IPV6(v6) |
+					LSO_ETHHDR_LEN(eth_xtra_len / 4) |
+					LSO_IPHDR_LEN(l3hdr_len / 4) |
+					LSO_TCPHDR_LEN(tcp_hdr(skb)->doff));
+		lso->c.ipid_ofst = htons(0);
+		lso->c.mss = htons(ssi->gso_size);
+		lso->c.seqno_offset = htonl(0);
+		lso->c.len = htonl(skb->len);
 		cpl = (void *)(lso + 1);
 		cntrl = TXPKT_CSUM_TYPE(v6 ? TX_CSUM_TCPIP6 : TX_CSUM_TCPIP) |
 			TXPKT_IPHDR_LEN(l3hdr_len) |