diff options
| author | David Woodhouse <dwmw2@infradead.org> | 2008-02-03 18:29:41 +1100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2008-02-03 18:30:32 +1100 |
| commit | c1f3ee120bb61045b1c0a3ead620d1d65af47130 (patch) | |
| tree | 908430bf2b47fe8e96ac623ae7ab6dd5698d0938 /drivers/infiniband/hw/ipath/ipath_ruc.c | |
| parent | e619a75ff6201b567a539e787aa9af9bc63a3187 (diff) | |
| parent | 9135f1901ee6449dfe338adf6e40e9c2025b8150 (diff) | |
| download | talos-obmc-linux-c1f3ee120bb61045b1c0a3ead620d1d65af47130.tar.gz talos-obmc-linux-c1f3ee120bb61045b1c0a3ead620d1d65af47130.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_ruc.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_ruc.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index 4b6b7ee8e5c1..a59bdbd0ed87 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -98,11 +98,15 @@ void ipath_insert_rnr_queue(struct ipath_qp *qp) while (qp->s_rnr_timeout >= nqp->s_rnr_timeout) { qp->s_rnr_timeout -= nqp->s_rnr_timeout; l = l->next; - if (l->next == &dev->rnrwait) + if (l->next == &dev->rnrwait) { + nqp = NULL; break; + } nqp = list_entry(l->next, struct ipath_qp, timerwait); } + if (nqp) + nqp->s_rnr_timeout -= qp->s_rnr_timeout; list_add(&qp->timerwait, l); } spin_unlock_irqrestore(&dev->pending_lock, flags); @@ -479,9 +483,14 @@ done: static void want_buffer(struct ipath_devdata *dd) { - set_bit(IPATH_S_PIOINTBUFAVAIL, &dd->ipath_sendctrl); + unsigned long flags; + + spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); + dd->ipath_sendctrl |= INFINIPATH_S_PIOINTBUFAVAIL; ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); + ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); + spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); } /** @@ -630,11 +639,8 @@ bail:; void ipath_send_complete(struct ipath_qp *qp, struct ipath_swqe *wqe, enum ib_wc_status status) { - u32 last = qp->s_last; - - if (++last == qp->s_size) - last = 0; - qp->s_last = last; + unsigned long flags; + u32 last; /* See ch. 11.2.4.1 and 10.7.3.1 */ if (!(qp->s_flags & IPATH_S_SIGNAL_REQ_WR) || @@ -658,4 +664,11 @@ void ipath_send_complete(struct ipath_qp *qp, struct ipath_swqe *wqe, wc.port_num = 0; ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc, 0); } + + spin_lock_irqsave(&qp->s_lock, flags); + last = qp->s_last; + if (++last >= qp->s_size) + last = 0; + qp->s_last = last; + spin_unlock_irqrestore(&qp->s_lock, flags); } |
