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---
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yaml
---
r: 198422
b: refs/heads/master
c: 7ec45b9
h: refs/heads/master
v: v3
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Steve Wise authored and Roland Dreier committed May 25, 2010
1 parent 16ecb16 commit b594294
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Showing 2 changed files with 13 additions and 20 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 84172dee05cbce6ae791eac481ef4d8590cda791
refs/heads/master: 7ec45b923446d484eb39434e18d354666426e606
31 changes: 12 additions & 19 deletions trunk/drivers/infiniband/hw/cxgb4/t4.h
Original file line number Diff line number Diff line change
Expand Up @@ -449,25 +449,17 @@ struct t4_cq {
static inline int t4_arm_cq(struct t4_cq *cq, int se)
{
u32 val;
u16 inc;

do {
/*
* inc must be less the both the max update value -and-
* the size of the CQ.
*/
inc = cq->cidx_inc <= CIDXINC_MASK ? cq->cidx_inc :
CIDXINC_MASK;
inc = inc <= (cq->size - 1) ? inc : (cq->size - 1);
if (inc == cq->cidx_inc)
val = SEINTARM(se) | CIDXINC(inc) | TIMERREG(6) |
INGRESSQID(cq->cqid);
else
val = SEINTARM(0) | CIDXINC(inc) | TIMERREG(7) |
INGRESSQID(cq->cqid);
cq->cidx_inc -= inc;

while (cq->cidx_inc > CIDXINC_MASK) {
val = SEINTARM(0) | CIDXINC(CIDXINC_MASK) | TIMERREG(7) |
INGRESSQID(cq->cqid);
writel(val, cq->gts);
} while (cq->cidx_inc);
cq->cidx_inc -= CIDXINC_MASK;
}
val = SEINTARM(se) | CIDXINC(cq->cidx_inc) | TIMERREG(6) |
INGRESSQID(cq->cqid);
writel(val, cq->gts);
cq->cidx_inc = 0;
return 0;
}

Expand All @@ -488,7 +480,8 @@ static inline void t4_swcq_consume(struct t4_cq *cq)
static inline void t4_hwcq_consume(struct t4_cq *cq)
{
cq->bits_type_ts = cq->queue[cq->cidx].bits_type_ts;
cq->cidx_inc++;
if (++cq->cidx_inc == cq->size)
cq->cidx_inc = 0;
if (++cq->cidx == cq->size) {
cq->cidx = 0;
cq->gen ^= 1;
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