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[PATCH] IB/mthca: update receive queue initialization for new HCAs

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Update initialization of receive queue to match new documentation.  This
change is required to support new MT25204 HCA.

Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Roland Dreier 2005-04-16 15:26:33 -07:00 committed by Linus Torvalds
parent d10ddbf6d7
commit ddf841f052
1 changed files with 23 additions and 10 deletions
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27
drivers/infiniband/hw/mthca/mthca_qp.c
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@ -181,6 +181,10 @@ enum {
MTHCA_MLX_SLR = 1 << 16
};
enum {
MTHCA_INVAL_LKEY = 0x100
};
struct mthca_next_seg {
u32 nda_op; /* [31:6] next WQE [4:0] next opcode */
u32 ee_nds; /* [31:8] next EE [7] DBD [6] F [5:0] next WQE size */
@ -1082,7 +1086,6 @@ static int mthca_alloc_qp_common(struct mthca_dev *dev,
enum ib_sig_type send_policy,
struct mthca_qp *qp)
{
struct mthca_next_seg *wqe;
int ret;
int i;
@ -1105,16 +1108,26 @@ static int mthca_alloc_qp_common(struct mthca_dev *dev,
}
if (mthca_is_memfree(dev)) {
struct mthca_next_seg *next;
struct mthca_data_seg *scatter;
int size = (sizeof (struct mthca_next_seg) +
qp->rq.max_gs * sizeof (struct mthca_data_seg)) / 16;
for (i = 0; i < qp->rq.max; ++i) {
wqe = get_recv_wqe(qp, i);
wqe->nda_op = cpu_to_be32(((i + 1) & (qp->rq.max - 1)) <<
next = get_recv_wqe(qp, i);
next->nda_op = cpu_to_be32(((i + 1) & (qp->rq.max - 1)) <<
qp->rq.wqe_shift);
wqe->ee_nds = cpu_to_be32(1 << (qp->rq.wqe_shift - 4));
next->ee_nds = cpu_to_be32(size);
for (scatter = (void *) (next + 1);
(void *) scatter < (void *) next + (1 << qp->rq.wqe_shift);
++scatter)
scatter->lkey = cpu_to_be32(MTHCA_INVAL_LKEY);
}
for (i = 0; i < qp->sq.max; ++i) {
wqe = get_send_wqe(qp, i);
wqe->nda_op = cpu_to_be32((((i + 1) & (qp->sq.max - 1)) <<
next = get_send_wqe(qp, i);
next->nda_op = cpu_to_be32((((i + 1) & (qp->sq.max - 1)) <<
qp->sq.wqe_shift) +
qp->send_wqe_offset);
}
@ -1975,7 +1988,7 @@ int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
if (i < qp->rq.max_gs) {
((struct mthca_data_seg *) wqe)->byte_count = 0;
((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(0x100);
((struct mthca_data_seg *) wqe)->lkey = cpu_to_be32(MTHCA_INVAL_LKEY);
((struct mthca_data_seg *) wqe)->addr = 0;
}