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IB/ipath: UC RDMA WRITE with IMMEDIATE doesn't send the immediate 

This patch fixes a bug in the receive processing for UC RDMA WRITE with
immediate which caused the last packet to be dropped.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2007-08-17 11:28:48 -07:00 committed by Roland Dreier
parent 9ef8617af7
commit 55046698fa
1 changed files with 11 additions and 10 deletions
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21
drivers/infiniband/hw/ipath/ipath_uc.c
View File

@ -464,6 +464,16 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
case OP(RDMA_WRITE_LAST_WITH_IMMEDIATE):
rdma_last_imm:
if (header_in_data) {
wc.imm_data = *(__be32 *) data;
data += sizeof(__be32);
} else {
/* Immediate data comes after BTH */
wc.imm_data = ohdr->u.imm_data;
}
hdrsize += 4;
wc.wc_flags = IB_WC_WITH_IMM;
/* Get the number of bytes the message was padded by. */
pad = (be32_to_cpu(ohdr->bth[0]) >> 20) & 3;
/* Check for invalid length. */
@ -484,16 +494,7 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
dev->n_pkt_drops++;
goto done;
}
if (header_in_data) {
wc.imm_data = *(__be32 *) data;
data += sizeof(__be32);
} else {
/* Immediate data comes after BTH */
wc.imm_data = ohdr->u.imm_data;
}
hdrsize += 4;
wc.wc_flags = IB_WC_WITH_IMM;
wc.byte_len = 0;
wc.byte_len = qp->r_len;
goto last_imm;
case OP(RDMA_WRITE_LAST):