diff options
| author |   Mike Marciniszyn <mike.marciniszyn@qlogic.com> | 2011-01-10 17:42:21 -0800 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2011-01-10 17:42:21 -0800 |
| commit | 19ede2e422496b2a064b9b22823c6afb66ff927b (patch) | |
| tree | 5d440053d4662acd8f9a5dac227156878bd99db2 /drivers/infiniband/hw/qib/qib_iba7220.c | |
| parent | IB/qib: Avoid duplicate writes to the rcv head register (diff) | |
| download | linux-dev-19ede2e422496b2a064b9b22823c6afb66ff927b.tar.xz linux-dev-19ede2e422496b2a064b9b22823c6afb66ff927b.zip | |
IB/qib: Fix interrupt mitigation
For SusieQ we need to write to the interrupt timer register before
updating the header queue head with interrupt count. This is to
ensure that the timer is enabled properly and a receive available
interrupt is delivered. Otherwise this interrupt can be lost if the
receiver header/eager queues are full before the timer is enabled.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_iba7220.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_iba7220.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/qib/qib_iba7220.c b/drivers/infiniband/hw/qib/qib_iba7220.c index 6fd8d74e7392..df49e8e7cc2a 100644 --- a/drivers/infiniband/hw/qib/qib_iba7220.c +++ b/drivers/infiniband/hw/qib/qib_iba7220.c @@ -2703,7 +2703,7 @@ static int qib_7220_set_loopback(struct qib_pportdata *ppd, const char *what) } static void qib_update_7220_usrhead(struct qib_ctxtdata *rcd, u64 hd, - u32 updegr, u32 egrhd) + u32 updegr, u32 egrhd, u32 npkts) { qib_write_ureg(rcd->dd, ur_rcvhdrhead, hd, rcd->ctxt); if (updegr) |