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authorMike Marciniszyn <mike.marciniszyn@qlogic.com>2011-01-11 04:42:21 +0300
committerRoland Dreier <rolandd@cisco.com>2011-01-11 04:42:21 +0300
commit19ede2e422496b2a064b9b22823c6afb66ff927b (patch)
tree5d440053d4662acd8f9a5dac227156878bd99db2 /drivers/infiniband/hw/qib/qib_iba7220.c
parentaa7374ac19ca08715693b0a2d9f88f479af3ea7c (diff)
downloadlinux-19ede2e422496b2a064b9b22823c6afb66ff927b.tar.xz
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.c2
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)