IB/hfi1, qib, rdmavt: Move AETH credit functions into rdmavt
Add rvt_compute_aeth() and rvt_get_credit() as shared functions in
rdmavt, moved from hfi1/qib logic.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Brian Welty <brian.welty@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/hw/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c
index 5b0d01b..6a18931 100644
--- a/drivers/infiniband/hw/qib/qib_rc.c
+++ b/drivers/infiniband/hw/qib/qib_rc.c
@@ -144,7 +144,7 @@ static int qib_make_rc_ack(struct qib_ibdev *dev, struct rvt_qp *qp,
qp->s_ack_state = OP(RDMA_READ_RESPONSE_ONLY);
e->sent = 1;
}
- ohdr->u.aeth = qib_compute_aeth(qp);
+ ohdr->u.aeth = rvt_compute_aeth(qp);
hwords++;
qp->s_ack_rdma_psn = e->psn;
bth2 = qp->s_ack_rdma_psn++ & QIB_PSN_MASK;
@@ -153,7 +153,7 @@ static int qib_make_rc_ack(struct qib_ibdev *dev, struct rvt_qp *qp,
qp->s_cur_sge = NULL;
len = 0;
qp->s_ack_state = OP(ATOMIC_ACKNOWLEDGE);
- ohdr->u.at.aeth = qib_compute_aeth(qp);
+ ohdr->u.at.aeth = rvt_compute_aeth(qp);
ib_u64_put(e->atomic_data, &ohdr->u.at.atomic_ack_eth);
hwords += sizeof(ohdr->u.at) / sizeof(u32);
bth2 = e->psn & QIB_PSN_MASK;
@@ -174,7 +174,7 @@ static int qib_make_rc_ack(struct qib_ibdev *dev, struct rvt_qp *qp,
if (len > pmtu)
len = pmtu;
else {
- ohdr->u.aeth = qib_compute_aeth(qp);
+ ohdr->u.aeth = rvt_compute_aeth(qp);
hwords++;
qp->s_ack_state = OP(RDMA_READ_RESPONSE_LAST);
e = &qp->s_ack_queue[qp->s_tail_ack_queue];
@@ -197,11 +197,11 @@ static int qib_make_rc_ack(struct qib_ibdev *dev, struct rvt_qp *qp,
qp->s_cur_sge = NULL;
if (qp->s_nak_state)
ohdr->u.aeth =
- cpu_to_be32((qp->r_msn & QIB_MSN_MASK) |
+ cpu_to_be32((qp->r_msn & RVT_MSN_MASK) |
(qp->s_nak_state <<
- QIB_AETH_CREDIT_SHIFT));
+ RVT_AETH_CREDIT_SHIFT));
else
- ohdr->u.aeth = qib_compute_aeth(qp);
+ ohdr->u.aeth = rvt_compute_aeth(qp);
hwords++;
len = 0;
bth0 = OP(ACKNOWLEDGE) << 24;
@@ -331,7 +331,7 @@ int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags)
case IB_WR_SEND_WITH_IMM:
/* If no credit, return. */
if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT) &&
- qib_cmp24(wqe->ssn, qp->s_lsn + 1) > 0) {
+ rvt_cmp_msn(wqe->ssn, qp->s_lsn + 1) > 0) {
qp->s_flags |= RVT_S_WAIT_SSN_CREDIT;
goto bail;
}
@@ -362,7 +362,7 @@ int qib_make_rc_req(struct rvt_qp *qp, unsigned long *flags)
case IB_WR_RDMA_WRITE_WITH_IMM:
/* If no credit, return. */
if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT) &&
- qib_cmp24(wqe->ssn, qp->s_lsn + 1) > 0) {
+ rvt_cmp_msn(wqe->ssn, qp->s_lsn + 1) > 0) {
qp->s_flags |= RVT_S_WAIT_SSN_CREDIT;
goto bail;
}
@@ -658,11 +658,11 @@ void qib_send_rc_ack(struct rvt_qp *qp)
if (qp->s_mig_state == IB_MIG_MIGRATED)
bth0 |= IB_BTH_MIG_REQ;
if (qp->r_nak_state)
- ohdr->u.aeth = cpu_to_be32((qp->r_msn & QIB_MSN_MASK) |
+ ohdr->u.aeth = cpu_to_be32((qp->r_msn & RVT_MSN_MASK) |
(qp->r_nak_state <<
- QIB_AETH_CREDIT_SHIFT));
+ RVT_AETH_CREDIT_SHIFT));
else
- ohdr->u.aeth = qib_compute_aeth(qp);
+ ohdr->u.aeth = rvt_compute_aeth(qp);
lrh0 |= ibp->sl_to_vl[qp->remote_ah_attr.sl] << 12 |
qp->remote_ah_attr.sl << 4;
hdr.lrh[0] = cpu_to_be16(lrh0);
@@ -1098,7 +1098,7 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
* request but will include an ACK'ed request(s).
*/
ack_psn = psn;
- if (aeth >> 29)
+ if (aeth >> RVT_AETH_NAK_SHIFT)
ack_psn--;
wqe = rvt_get_swqe_ptr(qp, qp->s_acked);
ibp = to_iport(qp->ibqp.device, qp->port_num);
@@ -1178,7 +1178,7 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
break;
}
- switch (aeth >> 29) {
+ switch (aeth >> RVT_AETH_NAK_SHIFT) {
case 0: /* ACK */
this_cpu_inc(*ibp->rvp.rc_acks);
if (qp->s_acked != qp->s_tail) {
@@ -1201,7 +1201,7 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
qp->s_flags &= ~RVT_S_WAIT_ACK;
qib_schedule_send(qp);
}
- qib_get_credit(qp, aeth);
+ rvt_get_credit(qp, aeth);
qp->s_rnr_retry = qp->s_rnr_retry_cnt;
qp->s_retry = qp->s_retry_cnt;
update_last_psn(qp, psn);
@@ -1232,8 +1232,8 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
qp->s_flags |= RVT_S_WAIT_RNR;
qp->s_timer.function = qib_rc_rnr_retry;
qp->s_timer.expires = jiffies + usecs_to_jiffies(
- ib_qib_rnr_table[(aeth >> QIB_AETH_CREDIT_SHIFT) &
- QIB_AETH_CREDIT_MASK]);
+ ib_qib_rnr_table[(aeth >> RVT_AETH_CREDIT_SHIFT) &
+ RVT_AETH_CREDIT_MASK]);
add_timer(&qp->s_timer);
goto bail;
@@ -1242,8 +1242,8 @@ static int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
goto bail;
/* The last valid PSN is the previous PSN. */
update_last_psn(qp, psn - 1);
- switch ((aeth >> QIB_AETH_CREDIT_SHIFT) &
- QIB_AETH_CREDIT_MASK) {
+ switch ((aeth >> RVT_AETH_CREDIT_SHIFT) &
+ RVT_AETH_CREDIT_MASK) {
case 0: /* PSN sequence error */
ibp->rvp.n_seq_naks++;
/*
@@ -1400,8 +1400,8 @@ static void qib_rc_rcv_resp(struct qib_ibport *ibp,
/* Update credits for "ghost" ACKs */
if (diff == 0 && opcode == OP(ACKNOWLEDGE)) {
aeth = be32_to_cpu(ohdr->u.aeth);
- if ((aeth >> 29) == 0)
- qib_get_credit(qp, aeth);
+ if ((aeth >> RVT_AETH_NAK_SHIFT) == 0)
+ rvt_get_credit(qp, aeth);
}
goto ack_done;
}