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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/ipath: Fix receiving UD messages with immediate data
This commit is contained in:
Linus Torvalds 2008-01-19 11:01:23 -08:00
commit 5db501d7e3
1 changed files with 22 additions and 22 deletions
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44
drivers/infiniband/hw/ipath/ipath_ud.c
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@ -455,6 +455,28 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
}
}
/*
* The opcode is in the low byte when its in network order
* (top byte when in host order).
*/
opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
if (qp->ibqp.qp_num > 1 &&
opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
if (header_in_data) {
wc.imm_data = *(__be32 *) data;
data += sizeof(__be32);
} else
wc.imm_data = ohdr->u.ud.imm_data;
wc.wc_flags = IB_WC_WITH_IMM;
hdrsize += sizeof(u32);
} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
wc.imm_data = 0;
wc.wc_flags = 0;
} else {
dev->n_pkt_drops++;
goto bail;
}
/* Get the number of bytes the message was padded by. */
pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
if (unlikely(tlen < (hdrsize + pad + 4))) {
@ -481,28 +503,6 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
*/
wc.byte_len = tlen + sizeof(struct ib_grh);
/*
* The opcode is in the low byte when its in network order
* (top byte when in host order).
*/
opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
if (qp->ibqp.qp_num > 1 &&
opcode == IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE) {
if (header_in_data) {
wc.imm_data = *(__be32 *) data;
data += sizeof(__be32);
} else
wc.imm_data = ohdr->u.ud.imm_data;
wc.wc_flags = IB_WC_WITH_IMM;
hdrsize += sizeof(u32);
} else if (opcode == IB_OPCODE_UD_SEND_ONLY) {
wc.imm_data = 0;
wc.wc_flags = 0;
} else {
dev->n_pkt_drops++;
goto bail;
}
/*
* Get the next work request entry to find where to put the data.
*/